blob: 231de5574d72261191ac430dd19e6ff503048553 [file] [log] [blame]
Johannes Berg55682962007-09-20 13:09:35 -04001/*
2 * This is the new netlink-based wireless configuration interface.
3 *
Jouni Malinen026331c2010-02-15 12:53:10 +02004 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
Johannes Berg55682962007-09-20 13:09:35 -04005 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090010#include <linux/slab.h>
Johannes Berg55682962007-09-20 13:09:35 -040011#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
Johannes Berg2a519312009-02-10 21:25:55 +010017#include <linux/etherdevice.h>
Johannes Berg463d0182009-07-14 00:33:35 +020018#include <net/net_namespace.h>
Johannes Berg55682962007-09-20 13:09:35 -040019#include <net/genetlink.h>
20#include <net/cfg80211.h>
Johannes Berg463d0182009-07-14 00:33:35 +020021#include <net/sock.h>
Johannes Berg55682962007-09-20 13:09:35 -040022#include "core.h"
23#include "nl80211.h"
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -070024#include "reg.h"
Johannes Berg55682962007-09-20 13:09:35 -040025
Jouni Malinen5fb628e2011-08-10 23:54:35 +030026static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
Johannes Berg4c476992010-10-04 21:36:35 +020032static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
Johannes Berg55682962007-09-20 13:09:35 -040037/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
Johannes Berg463d0182009-07-14 00:33:35 +020044 .netnsok = true,
Johannes Berg4c476992010-10-04 21:36:35 +020045 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
Johannes Berg55682962007-09-20 13:09:35 -040047};
48
Johannes Berg79c97e92009-07-07 03:56:12 +020049/* internal helper: get rdev and dev */
Johannes Berg00918d32011-12-13 17:22:05 +010050static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
Johannes Berg55682962007-09-20 13:09:35 -040053{
54 int ifindex;
55
Johannes Bergbba95fe2008-07-29 13:22:51 +020056 if (!attrs[NL80211_ATTR_IFINDEX])
Johannes Berg55682962007-09-20 13:09:35 -040057 return -EINVAL;
58
Johannes Bergbba95fe2008-07-29 13:22:51 +020059 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
Johannes Berg00918d32011-12-13 17:22:05 +010060 *dev = dev_get_by_index(netns, ifindex);
Johannes Berg55682962007-09-20 13:09:35 -040061 if (!*dev)
62 return -ENODEV;
63
Johannes Berg00918d32011-12-13 17:22:05 +010064 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
Johannes Berg79c97e92009-07-07 03:56:12 +020065 if (IS_ERR(*rdev)) {
Johannes Berg55682962007-09-20 13:09:35 -040066 dev_put(*dev);
Johannes Berg79c97e92009-07-07 03:56:12 +020067 return PTR_ERR(*rdev);
Johannes Berg55682962007-09-20 13:09:35 -040068 }
69
70 return 0;
71}
72
Johannes Berg6e0d19a2019-09-20 21:54:17 +020073static int validate_beacon_head(const struct nlattr *attr)
74{
75 const u8 *data = nla_data(attr);
76 unsigned int len = nla_len(attr);
77 const struct element *elem;
78 const struct ieee80211_mgmt *mgmt = (void *)data;
79 unsigned int fixedlen = offsetof(struct ieee80211_mgmt,
80 u.beacon.variable);
81
82 if (len < fixedlen)
83 goto err;
84
85 if (ieee80211_hdrlen(mgmt->frame_control) !=
86 offsetof(struct ieee80211_mgmt, u.beacon))
87 goto err;
88
89 data += fixedlen;
90 len -= fixedlen;
91
92 for_each_element(elem, data, len) {
93 /* nothing */
94 }
95
96 if (for_each_element_completed(elem, data, len))
97 return 0;
98
99err:
100 return -EINVAL;
101}
102
Johannes Berg55682962007-09-20 13:09:35 -0400103/* policy for the attributes */
Alexey Dobriyanb54452b2010-02-18 08:14:31 +0000104static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
Johannes Berg55682962007-09-20 13:09:35 -0400105 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
106 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
David S. Miller079e24e2009-05-26 21:15:00 -0700107 .len = 20-1 },
Jouni Malinen31888482008-10-30 16:59:24 +0200108 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
Jouni Malinen72bdcf32008-11-26 16:15:24 +0200109 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
Sujith094d05d2008-12-12 11:57:43 +0530110 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +0200111 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
112 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
113 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
114 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
Lukáš Turek81077e82009-12-21 22:50:47 +0100115 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
Johannes Berg55682962007-09-20 13:09:35 -0400116
117 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
118 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
119 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
Johannes Berg41ade002007-12-19 02:03:29 +0100120
Eliad Pellere007b852011-11-24 18:13:56 +0200121 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
122 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
Johannes Berg41ade002007-12-19 02:03:29 +0100123
Johannes Bergb9454e82009-07-08 13:29:08 +0200124 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
Johannes Berg41ade002007-12-19 02:03:29 +0100125 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
126 .len = WLAN_MAX_KEY_LEN },
127 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
128 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
129 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
Jouni Malinen81962262011-11-02 23:36:31 +0200130 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
Johannes Berge31b8212010-10-05 19:39:30 +0200131 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
Johannes Berged1b6cc2007-12-19 02:03:32 +0100132
133 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
134 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
135 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
136 .len = IEEE80211_MAX_DATA_LEN },
137 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
Johannes Berg5727ef12007-12-19 02:03:34 +0100139 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
140 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
141 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
142 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
143 .len = NL80211_MAX_SUPP_RATES },
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +0100144 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
Johannes Berg5727ef12007-12-19 02:03:34 +0100145 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
Johannes Berg0a9542e2008-10-15 11:54:04 +0200146 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +0100147 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
148 .len = IEEE80211_MAX_MESH_ID_LEN },
149 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
Jouni Malinen9f1ba902008-08-07 20:07:01 +0300150
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -0700151 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
152 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
153
Jouni Malinen9f1ba902008-08-07 20:07:01 +0300154 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
155 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
156 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
Jouni Malinen90c97a02008-10-30 16:59:22 +0200157 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
158 .len = NL80211_MAX_SUPP_RATES },
Helmut Schaa50b12f52010-11-19 12:40:25 +0100159 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
Jouni Malinen36aedc92008-08-25 11:58:58 +0300160
Javier Cardona24bdd9f2010-12-16 17:37:48 -0800161 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
Javier Cardona15d5dda2011-04-07 15:08:28 -0700162 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
colin@cozybit.com93da9cc2008-10-21 12:03:48 -0700163
Johannes Berg6c739412011-11-03 09:27:01 +0100164 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
Jouni Malinen9aed3cc2009-01-13 16:03:29 +0200165
166 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
167 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
168 .len = IEEE80211_MAX_DATA_LEN },
Johannes Berg2a519312009-02-10 21:25:55 +0100169 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
170 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
Jouni Malinen636a5d32009-03-19 13:39:22 +0200171
172 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
173 .len = IEEE80211_MAX_SSID_LEN },
174 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
175 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
Johannes Berg04a773a2009-04-19 21:24:32 +0200176 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
Jouni Malinen1965c852009-04-22 21:38:25 +0300177 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
Jouni Malinendc6382c2009-05-06 22:09:37 +0300178 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
Johannes Bergeccb8e82009-05-11 21:57:56 +0300179 [NL80211_ATTR_STA_FLAGS2] = {
180 .len = sizeof(struct nl80211_sta_flag_update),
181 },
Jouni Malinen3f77316c2009-05-11 21:57:57 +0300182 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
Johannes Bergc0692b82010-08-27 14:26:53 +0300183 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
184 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
Samuel Ortizb23aa672009-07-01 21:26:54 +0200185 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
Sergey Matyukevich8f3b5202020-02-13 13:16:16 +0000186 [NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 },
Samuel Ortizb23aa672009-07-01 21:26:54 +0200187 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
188 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
Johannes Berg463d0182009-07-14 00:33:35 +0200189 [NL80211_ATTR_PID] = { .type = NLA_U32 },
Felix Fietkau8b787642009-11-10 18:53:10 +0100190 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
Srinivas Dasari551f0bd2017-07-07 01:43:39 +0300191 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
Jouni Malinen9588bbd2009-12-23 13:15:41 +0100192 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
193 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
Jouni Malinen13ae75b2009-12-29 12:59:45 +0200194 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
Jouni Malinen026331c2010-02-15 12:53:10 +0200195 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
196 .len = IEEE80211_MAX_DATA_LEN },
197 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
Kalle Valoffb9eb32010-02-17 17:58:10 +0200198 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +0200199 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300200 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
Felix Fietkaufd8aaaf2010-04-27 01:23:35 +0200201 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
Juuso Oikarinen98d2ff82010-06-23 12:12:38 +0300202 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
203 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
Johannes Berg2e161f72010-08-12 15:38:38 +0200204 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
Bruno Randolfafe0cbf2010-11-10 12:50:50 +0900205 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
206 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
Felix Fietkau885a46d2010-11-11 15:07:22 +0100207 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
Johannes Bergf7ca38d2010-11-25 10:02:29 +0100208 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100209 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
Johannes Bergff1b6e62011-05-04 15:37:28 +0200210 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
Javier Cardona9c3990a2011-05-03 16:57:11 -0700211 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
Luciano Coelhobbe6ad62011-05-11 17:09:37 +0300212 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
Johannes Berge5497d72011-07-05 16:35:40 +0200213 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
Johannes Berg34850ab2011-07-18 18:08:35 +0200214 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
Jouni Malinen32e9de82011-08-10 23:53:31 +0300215 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
Jouni Malinen9946ecf2011-08-10 23:55:56 +0300216 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
217 .len = IEEE80211_MAX_DATA_LEN },
218 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
219 .len = IEEE80211_MAX_DATA_LEN },
Vivek Natarajanf4b34b52011-08-29 14:23:03 +0530220 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
Luciano Coelhoa1f1c212011-08-31 16:01:48 +0300221 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
Rajkumar Manoharane9f935e2011-09-25 14:53:30 +0530222 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
Arik Nemtsov109086c2011-09-28 14:12:50 +0300223 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
224 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
225 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
226 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
227 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
Johannes Berge247bd902011-11-04 11:18:21 +0100228 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
Arik Nemtsov00f740e2011-11-10 11:28:56 +0200229 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
230 .len = IEEE80211_MAX_DATA_LEN },
Luis R. Rodriguez8b60b072011-10-11 10:59:02 -0700231 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
Ben Greear7e7c8922011-11-18 11:31:59 -0800232 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
233 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
234 .len = NL80211_HT_CAPABILITY_LEN
235 },
Simon Wunderlich1d9d9212011-11-18 14:20:43 +0100236 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
Vasanthakumar Thiagarajan1b658f12012-03-02 15:50:02 +0530237 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
Bala Shanmugam4486ea92012-03-07 17:27:12 +0530238 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
Mahesh Palivelacf7f78d2012-10-11 08:04:52 +0000239 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
240 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
241 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
242 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
Srinivas Dasari54bf0df2017-07-07 01:43:41 +0300243 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
Vasanthakumar Thiagarajanb78cacb2013-05-14 19:04:43 +0530244 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
245 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
Jouni Malinen1400ced2013-02-14 19:10:13 +0000246 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
247 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
Jouni Malinen2b4303f2013-03-19 14:30:49 +0530248 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
249 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
250 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
251 .len = NL80211_VHT_CAPABILITY_LEN,
252 },
253 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
254 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
255 .len = IEEE80211_MAX_DATA_LEN },
Jouni Malinend0a8ac32013-06-04 19:26:05 +0530256 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
Naresh Jayaram23a9c6c2014-01-03 14:46:34 +0530257 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
258 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
Leo Chang21b770c2014-01-15 19:22:28 -0800259 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
260 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
261 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
262 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
263 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
265 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
266 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
267 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
268 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
269 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
270 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
Kyeyoon Park1368a382014-04-17 19:57:34 +0530271 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
272 .len = IEEE80211_QOS_MAP_LEN_MAX },
Jouni Malinen86997442014-04-17 22:49:32 +0530273 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
274 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
Sunil Dutt3db727f2014-04-17 23:15:25 +0530275 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
Johannes Berg55682962007-09-20 13:09:35 -0400276};
277
Johannes Berge31b8212010-10-05 19:39:30 +0200278/* policy for the key attributes */
Alexey Dobriyanb54452b2010-02-18 08:14:31 +0000279static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
Johannes Bergfffd0932009-07-08 14:22:54 +0200280 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
Johannes Bergb9454e82009-07-08 13:29:08 +0200281 [NL80211_KEY_IDX] = { .type = NLA_U8 },
282 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
Jouni Malinen81962262011-11-02 23:36:31 +0200283 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
Johannes Bergb9454e82009-07-08 13:29:08 +0200284 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
285 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
Johannes Berge31b8212010-10-05 19:39:30 +0200286 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100287 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
288};
289
290/* policy for the key default flags */
291static const struct nla_policy
292nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
293 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
294 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
Johannes Bergb9454e82009-07-08 13:29:08 +0200295};
296
Johannes Bergff1b6e62011-05-04 15:37:28 +0200297/* policy for WoWLAN attributes */
298static const struct nla_policy
299nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
300 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
301 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
302 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
303 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
Johannes Berg77dbbb12011-07-13 10:48:55 +0200304 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
305 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
306 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
307 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
Johannes Bergff1b6e62011-05-04 15:37:28 +0200308};
309
Johannes Berge5497d72011-07-05 16:35:40 +0200310/* policy for GTK rekey offload attributes */
311static const struct nla_policy
312nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
313 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
314 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
315 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
316};
317
Luciano Coelhoa1f1c212011-08-31 16:01:48 +0300318static const struct nla_policy
319nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
320 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
321 .len = IEEE80211_MAX_SSID_LEN },
322};
323
Holger Schuriga0438972009-11-11 11:30:02 +0100324/* ifidx get helper */
325static int nl80211_get_ifidx(struct netlink_callback *cb)
326{
327 int res;
328
329 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
330 nl80211_fam.attrbuf, nl80211_fam.maxattr,
331 nl80211_policy);
332 if (res)
333 return res;
334
335 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
336 return -EINVAL;
337
338 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
339 if (!res)
340 return -EINVAL;
341 return res;
342}
343
Johannes Berg67748892010-10-04 21:14:06 +0200344static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
345 struct netlink_callback *cb,
346 struct cfg80211_registered_device **rdev,
347 struct net_device **dev)
348{
349 int ifidx = cb->args[0];
350 int err;
351
352 if (!ifidx)
353 ifidx = nl80211_get_ifidx(cb);
354 if (ifidx < 0)
355 return ifidx;
356
357 cb->args[0] = ifidx;
358
359 rtnl_lock();
360
361 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
362 if (!*dev) {
363 err = -ENODEV;
364 goto out_rtnl;
365 }
366
367 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
Felix Fietkau3cc25e52010-10-31 15:31:54 +0100368 if (IS_ERR(*rdev)) {
369 err = PTR_ERR(*rdev);
Johannes Berg67748892010-10-04 21:14:06 +0200370 goto out_rtnl;
371 }
372
373 return 0;
374 out_rtnl:
375 rtnl_unlock();
376 return err;
377}
378
379static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
380{
381 cfg80211_unlock_rdev(rdev);
382 rtnl_unlock();
383}
384
Johannes Bergf4a11bb2009-03-27 12:40:28 +0100385/* IE validation */
386static bool is_valid_ie_attr(const struct nlattr *attr)
387{
388 const u8 *pos;
389 int len;
390
391 if (!attr)
392 return true;
393
394 pos = nla_data(attr);
395 len = nla_len(attr);
396
397 while (len) {
398 u8 elemlen;
399
400 if (len < 2)
401 return false;
402 len -= 2;
403
404 elemlen = pos[1];
405 if (elemlen > len)
406 return false;
407
408 len -= elemlen;
409 pos += 2 + elemlen;
410 }
411
412 return true;
413}
414
Johannes Berg55682962007-09-20 13:09:35 -0400415/* message building helper */
416static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
417 int flags, u8 cmd)
418{
419 /* since there is no private header just add the generic one */
420 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
421}
422
Luis R. Rodriguez5dab3b82009-04-02 14:08:08 -0400423static int nl80211_msg_put_channel(struct sk_buff *msg,
424 struct ieee80211_channel *chan)
425{
426 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
427 chan->center_freq);
428
429 if (chan->flags & IEEE80211_CHAN_DISABLED)
430 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
431 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
432 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
433 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
434 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
435 if (chan->flags & IEEE80211_CHAN_RADAR)
436 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
437
438 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
439 DBM_TO_MBM(chan->max_power));
440
441 return 0;
442
443 nla_put_failure:
444 return -ENOBUFS;
445}
446
Johannes Berg55682962007-09-20 13:09:35 -0400447/* netlink command implementations */
448
Johannes Bergb9454e82009-07-08 13:29:08 +0200449struct key_parse {
450 struct key_params p;
451 int idx;
Johannes Berge31b8212010-10-05 19:39:30 +0200452 int type;
Johannes Bergb9454e82009-07-08 13:29:08 +0200453 bool def, defmgmt;
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100454 bool def_uni, def_multi;
Johannes Bergb9454e82009-07-08 13:29:08 +0200455};
456
457static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
458{
459 struct nlattr *tb[NL80211_KEY_MAX + 1];
460 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
461 nl80211_key_policy);
462 if (err)
463 return err;
464
465 k->def = !!tb[NL80211_KEY_DEFAULT];
466 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
467
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100468 if (k->def) {
469 k->def_uni = true;
470 k->def_multi = true;
471 }
472 if (k->defmgmt)
473 k->def_multi = true;
474
Johannes Bergb9454e82009-07-08 13:29:08 +0200475 if (tb[NL80211_KEY_IDX])
476 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
477
478 if (tb[NL80211_KEY_DATA]) {
479 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
480 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
481 }
482
483 if (tb[NL80211_KEY_SEQ]) {
484 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
485 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
486 }
487
488 if (tb[NL80211_KEY_CIPHER])
489 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
490
Johannes Berge31b8212010-10-05 19:39:30 +0200491 if (tb[NL80211_KEY_TYPE]) {
492 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
493 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
494 return -EINVAL;
495 }
496
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100497 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
498 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
Johannes Berg2da8f412012-01-20 13:52:37 +0100499 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
500 tb[NL80211_KEY_DEFAULT_TYPES],
501 nl80211_key_default_policy);
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100502 if (err)
503 return err;
504
505 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
506 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
507 }
508
Johannes Bergb9454e82009-07-08 13:29:08 +0200509 return 0;
510}
511
512static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
513{
514 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
515 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
516 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
517 }
518
519 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
520 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
521 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
522 }
523
524 if (info->attrs[NL80211_ATTR_KEY_IDX])
525 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
526
527 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
528 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
529
530 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
531 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
532
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100533 if (k->def) {
534 k->def_uni = true;
535 k->def_multi = true;
536 }
537 if (k->defmgmt)
538 k->def_multi = true;
539
Johannes Berge31b8212010-10-05 19:39:30 +0200540 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
541 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
542 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
543 return -EINVAL;
544 }
545
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100546 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
547 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
548 int err = nla_parse_nested(
549 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
550 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
551 nl80211_key_default_policy);
552 if (err)
553 return err;
554
555 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
556 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
557 }
558
Johannes Bergb9454e82009-07-08 13:29:08 +0200559 return 0;
560}
561
562static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
563{
564 int err;
565
566 memset(k, 0, sizeof(*k));
567 k->idx = -1;
Johannes Berge31b8212010-10-05 19:39:30 +0200568 k->type = -1;
Johannes Bergb9454e82009-07-08 13:29:08 +0200569
570 if (info->attrs[NL80211_ATTR_KEY])
571 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
572 else
573 err = nl80211_parse_key_old(info, k);
574
575 if (err)
576 return err;
577
578 if (k->def && k->defmgmt)
579 return -EINVAL;
580
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100581 if (k->defmgmt) {
582 if (k->def_uni || !k->def_multi)
583 return -EINVAL;
584 }
585
Johannes Bergb9454e82009-07-08 13:29:08 +0200586 if (k->idx != -1) {
587 if (k->defmgmt) {
588 if (k->idx < 4 || k->idx > 5)
589 return -EINVAL;
590 } else if (k->def) {
591 if (k->idx < 0 || k->idx > 3)
592 return -EINVAL;
593 } else {
594 if (k->idx < 0 || k->idx > 5)
595 return -EINVAL;
596 }
597 }
598
599 return 0;
600}
601
Johannes Bergfffd0932009-07-08 14:22:54 +0200602static struct cfg80211_cached_keys *
603nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
604 struct nlattr *keys)
605{
606 struct key_parse parse;
607 struct nlattr *key;
608 struct cfg80211_cached_keys *result;
609 int rem, err, def = 0;
610
611 result = kzalloc(sizeof(*result), GFP_KERNEL);
612 if (!result)
613 return ERR_PTR(-ENOMEM);
614
615 result->def = -1;
616 result->defmgmt = -1;
617
618 nla_for_each_nested(key, keys, rem) {
619 memset(&parse, 0, sizeof(parse));
620 parse.idx = -1;
621
622 err = nl80211_parse_key_new(key, &parse);
623 if (err)
624 goto error;
625 err = -EINVAL;
626 if (!parse.p.key)
627 goto error;
628 if (parse.idx < 0 || parse.idx > 4)
629 goto error;
630 if (parse.def) {
631 if (def)
632 goto error;
633 def = 1;
634 result->def = parse.idx;
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100635 if (!parse.def_uni || !parse.def_multi)
636 goto error;
Johannes Bergfffd0932009-07-08 14:22:54 +0200637 } else if (parse.defmgmt)
638 goto error;
639 err = cfg80211_validate_key_settings(rdev, &parse.p,
Johannes Berge31b8212010-10-05 19:39:30 +0200640 parse.idx, false, NULL);
Johannes Bergfffd0932009-07-08 14:22:54 +0200641 if (err)
642 goto error;
643 result->params[parse.idx].cipher = parse.p.cipher;
644 result->params[parse.idx].key_len = parse.p.key_len;
645 result->params[parse.idx].key = result->data[parse.idx];
646 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
647 }
648
649 return result;
650 error:
651 kfree(result);
652 return ERR_PTR(err);
653}
654
655static int nl80211_key_allowed(struct wireless_dev *wdev)
656{
657 ASSERT_WDEV_LOCK(wdev);
658
Johannes Bergfffd0932009-07-08 14:22:54 +0200659 switch (wdev->iftype) {
660 case NL80211_IFTYPE_AP:
661 case NL80211_IFTYPE_AP_VLAN:
Johannes Berg074ac8d2010-09-16 14:58:22 +0200662 case NL80211_IFTYPE_P2P_GO:
Thomas Pedersenff973af2011-05-03 16:57:12 -0700663 case NL80211_IFTYPE_MESH_POINT:
Johannes Bergfffd0932009-07-08 14:22:54 +0200664 break;
665 case NL80211_IFTYPE_ADHOC:
666 if (!wdev->current_bss)
667 return -ENOLINK;
668 break;
669 case NL80211_IFTYPE_STATION:
Johannes Berg074ac8d2010-09-16 14:58:22 +0200670 case NL80211_IFTYPE_P2P_CLIENT:
Johannes Bergfffd0932009-07-08 14:22:54 +0200671 if (wdev->sme_state != CFG80211_SME_CONNECTED)
672 return -ENOLINK;
673 break;
674 default:
675 return -EINVAL;
676 }
677
678 return 0;
679}
680
Johannes Berg7527a782011-05-13 10:58:57 +0200681static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
682{
683 struct nlattr *nl_modes = nla_nest_start(msg, attr);
684 int i;
685
686 if (!nl_modes)
687 goto nla_put_failure;
688
689 i = 0;
690 while (ifmodes) {
691 if (ifmodes & 1)
692 NLA_PUT_FLAG(msg, i);
693 ifmodes >>= 1;
694 i++;
695 }
696
697 nla_nest_end(msg, nl_modes);
698 return 0;
699
700nla_put_failure:
701 return -ENOBUFS;
702}
703
704static int nl80211_put_iface_combinations(struct wiphy *wiphy,
705 struct sk_buff *msg)
706{
707 struct nlattr *nl_combis;
708 int i, j;
709
710 nl_combis = nla_nest_start(msg,
711 NL80211_ATTR_INTERFACE_COMBINATIONS);
712 if (!nl_combis)
713 goto nla_put_failure;
714
715 for (i = 0; i < wiphy->n_iface_combinations; i++) {
716 const struct ieee80211_iface_combination *c;
717 struct nlattr *nl_combi, *nl_limits;
718
719 c = &wiphy->iface_combinations[i];
720
721 nl_combi = nla_nest_start(msg, i + 1);
722 if (!nl_combi)
723 goto nla_put_failure;
724
725 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
726 if (!nl_limits)
727 goto nla_put_failure;
728
729 for (j = 0; j < c->n_limits; j++) {
730 struct nlattr *nl_limit;
731
732 nl_limit = nla_nest_start(msg, j + 1);
733 if (!nl_limit)
734 goto nla_put_failure;
735 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
736 c->limits[j].max);
737 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
738 c->limits[j].types))
739 goto nla_put_failure;
740 nla_nest_end(msg, nl_limit);
741 }
742
743 nla_nest_end(msg, nl_limits);
744
745 if (c->beacon_int_infra_match)
746 NLA_PUT_FLAG(msg,
747 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
748 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
749 c->num_different_channels);
750 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
751 c->max_interfaces);
752
753 nla_nest_end(msg, nl_combi);
754 }
755
756 nla_nest_end(msg, nl_combis);
757
758 return 0;
759nla_put_failure:
760 return -ENOBUFS;
761}
762
Johannes Berg55682962007-09-20 13:09:35 -0400763static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
764 struct cfg80211_registered_device *dev)
765{
766 void *hdr;
Johannes Bergee688b02008-01-24 19:38:39 +0100767 struct nlattr *nl_bands, *nl_band;
768 struct nlattr *nl_freqs, *nl_freq;
769 struct nlattr *nl_rates, *nl_rate;
Johannes Berg8fdc6212009-03-14 09:34:01 +0100770 struct nlattr *nl_cmds;
Johannes Bergee688b02008-01-24 19:38:39 +0100771 enum ieee80211_band band;
772 struct ieee80211_channel *chan;
773 struct ieee80211_rate *rate;
774 int i;
Johannes Berg2e161f72010-08-12 15:38:38 +0200775 const struct ieee80211_txrx_stypes *mgmt_stypes =
776 dev->wiphy.mgmt_stypes;
Johannes Berg55682962007-09-20 13:09:35 -0400777
778 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
779 if (!hdr)
780 return -1;
781
Luis R. Rodriguezb5850a72009-02-21 00:04:19 -0500782 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
Johannes Berg55682962007-09-20 13:09:35 -0400783 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +0200784
Johannes Bergf5ea9122009-08-07 16:17:38 +0200785 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
786 cfg80211_rdev_list_generation);
787
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +0200788 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
789 dev->wiphy.retry_short);
790 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
791 dev->wiphy.retry_long);
792 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
793 dev->wiphy.frag_threshold);
794 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
795 dev->wiphy.rts_threshold);
Lukáš Turek81077e82009-12-21 22:50:47 +0100796 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
797 dev->wiphy.coverage_class);
Johannes Berg2a519312009-02-10 21:25:55 +0100798 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
799 dev->wiphy.max_scan_ssids);
Luciano Coelho93b6aa62011-07-13 14:57:28 +0300800 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
801 dev->wiphy.max_sched_scan_ssids);
Johannes Berg18a83652009-03-31 12:12:05 +0200802 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
803 dev->wiphy.max_scan_ie_len);
Luciano Coelho5a865ba2011-07-13 14:57:29 +0300804 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
805 dev->wiphy.max_sched_scan_ie_len);
Luciano Coelhoa1f1c212011-08-31 16:01:48 +0300806 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
807 dev->wiphy.max_match_sets);
Johannes Bergee688b02008-01-24 19:38:39 +0100808
Johannes Berge31b8212010-10-05 19:39:30 +0200809 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
810 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
Javier Cardona15d5dda2011-04-07 15:08:28 -0700811 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
812 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
Eliad Pellercedb5412011-08-31 11:29:43 +0300813 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
814 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
Vivek Natarajanf4b34b52011-08-29 14:23:03 +0530815 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
816 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
Arik Nemtsov109086c2011-09-28 14:12:50 +0300817 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
818 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
819 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
820 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
Vivek Natarajanf4b34b52011-08-29 14:23:03 +0530821
Johannes Berg25e47c12009-04-02 20:14:06 +0200822 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
823 sizeof(u32) * dev->wiphy.n_cipher_suites,
824 dev->wiphy.cipher_suites);
825
Samuel Ortiz67fbb162009-11-24 23:59:15 +0100826 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
827 dev->wiphy.max_num_pmkids);
828
Johannes Bergc0692b82010-08-27 14:26:53 +0300829 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
830 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
831
Bruno Randolf39fd5de2010-12-16 11:30:28 +0900832 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
833 dev->wiphy.available_antennas_tx);
834 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
835 dev->wiphy.available_antennas_rx);
836
Arik Nemtsov87bbbe22011-11-10 11:28:55 +0200837 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
838 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
839 dev->wiphy.probe_resp_offload);
840
Bruno Randolf7f531e02010-12-16 11:30:22 +0900841 if ((dev->wiphy.available_antennas_tx ||
842 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
Bruno Randolfafe0cbf2010-11-10 12:50:50 +0900843 u32 tx_ant = 0, rx_ant = 0;
844 int res;
845 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
846 if (!res) {
847 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
848 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
849 }
850 }
851
Johannes Berg7527a782011-05-13 10:58:57 +0200852 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
853 dev->wiphy.interface_modes))
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -0700854 goto nla_put_failure;
855
Johannes Bergee688b02008-01-24 19:38:39 +0100856 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
857 if (!nl_bands)
858 goto nla_put_failure;
859
860 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
861 if (!dev->wiphy.bands[band])
862 continue;
863
864 nl_band = nla_nest_start(msg, band);
865 if (!nl_band)
866 goto nla_put_failure;
867
Johannes Bergd51626d2008-10-09 12:20:13 +0200868 /* add HT info */
869 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
870 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
871 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
872 &dev->wiphy.bands[band]->ht_cap.mcs);
873 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
874 dev->wiphy.bands[band]->ht_cap.cap);
875 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
876 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
877 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
878 dev->wiphy.bands[band]->ht_cap.ampdu_density);
879 }
880
Mahesh Palivela04d2e732012-06-22 07:27:46 +0000881 /* add VHT info */
882 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
883 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
884 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
885 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
886 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
887 dev->wiphy.bands[band]->vht_cap.cap)))
888 goto nla_put_failure;
889
Johannes Bergee688b02008-01-24 19:38:39 +0100890 /* add frequencies */
891 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
892 if (!nl_freqs)
893 goto nla_put_failure;
894
895 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
896 nl_freq = nla_nest_start(msg, i);
897 if (!nl_freq)
898 goto nla_put_failure;
899
900 chan = &dev->wiphy.bands[band]->channels[i];
Johannes Bergee688b02008-01-24 19:38:39 +0100901
Luis R. Rodriguez5dab3b82009-04-02 14:08:08 -0400902 if (nl80211_msg_put_channel(msg, chan))
903 goto nla_put_failure;
Jouni Malinene2f367f262008-11-21 19:01:30 +0200904
Johannes Bergee688b02008-01-24 19:38:39 +0100905 nla_nest_end(msg, nl_freq);
906 }
907
908 nla_nest_end(msg, nl_freqs);
909
910 /* add bitrates */
911 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
912 if (!nl_rates)
913 goto nla_put_failure;
914
915 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
916 nl_rate = nla_nest_start(msg, i);
917 if (!nl_rate)
918 goto nla_put_failure;
919
920 rate = &dev->wiphy.bands[band]->bitrates[i];
921 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
922 rate->bitrate);
923 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
924 NLA_PUT_FLAG(msg,
925 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
926
927 nla_nest_end(msg, nl_rate);
928 }
929
930 nla_nest_end(msg, nl_rates);
931
932 nla_nest_end(msg, nl_band);
933 }
934 nla_nest_end(msg, nl_bands);
935
Johannes Berg8fdc6212009-03-14 09:34:01 +0100936 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
937 if (!nl_cmds)
938 goto nla_put_failure;
939
940 i = 0;
941#define CMD(op, n) \
942 do { \
943 if (dev->ops->op) { \
944 i++; \
945 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
946 } \
947 } while (0)
948
949 CMD(add_virtual_intf, NEW_INTERFACE);
950 CMD(change_virtual_intf, SET_INTERFACE);
951 CMD(add_key, NEW_KEY);
Johannes Berg88600202012-02-13 15:17:18 +0100952 CMD(start_ap, START_AP);
Johannes Berg8fdc6212009-03-14 09:34:01 +0100953 CMD(add_station, NEW_STATION);
954 CMD(add_mpath, NEW_MPATH);
Javier Cardona24bdd9f2010-12-16 17:37:48 -0800955 CMD(update_mesh_config, SET_MESH_CONFIG);
Johannes Berg8fdc6212009-03-14 09:34:01 +0100956 CMD(change_bss, SET_BSS);
Jouni Malinen636a5d32009-03-19 13:39:22 +0200957 CMD(auth, AUTHENTICATE);
958 CMD(assoc, ASSOCIATE);
959 CMD(deauth, DEAUTHENTICATE);
960 CMD(disassoc, DISASSOCIATE);
Johannes Berg04a773a2009-04-19 21:24:32 +0200961 CMD(join_ibss, JOIN_IBSS);
Johannes Berg29cbe682010-12-03 09:20:44 +0100962 CMD(join_mesh, JOIN_MESH);
Samuel Ortiz67fbb162009-11-24 23:59:15 +0100963 CMD(set_pmksa, SET_PMKSA);
964 CMD(del_pmksa, DEL_PMKSA);
965 CMD(flush_pmksa, FLUSH_PMKSA);
Johannes Berg7c4ef712011-11-18 15:33:48 +0100966 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
967 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
Jouni Malinen13ae75b2009-12-29 12:59:45 +0200968 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
Johannes Berg2e161f72010-08-12 15:38:38 +0200969 CMD(mgmt_tx, FRAME);
Johannes Bergf7ca38d2010-11-25 10:02:29 +0100970 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
Johannes Berg5be83de2009-11-19 00:56:28 +0100971 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
Johannes Berg463d0182009-07-14 00:33:35 +0200972 i++;
973 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
974 }
Johannes Bergf444de02010-05-05 15:25:02 +0200975 CMD(set_channel, SET_CHANNEL);
Bill Jordane8347eb2010-10-01 13:54:28 -0400976 CMD(set_wds_peer, SET_WDS_PEER);
Arik Nemtsov109086c2011-09-28 14:12:50 +0300977 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
978 CMD(tdls_mgmt, TDLS_MGMT);
979 CMD(tdls_oper, TDLS_OPER);
980 }
Luciano Coelho807f8a82011-05-11 17:09:35 +0300981 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
982 CMD(sched_scan_start, START_SCHED_SCAN);
Johannes Berg7f6cf312011-11-04 11:18:15 +0100983 CMD(probe_client, PROBE_CLIENT);
Simon Wunderlich1d9d9212011-11-18 14:20:43 +0100984 CMD(set_noack_map, SET_NOACK_MAP);
Johannes Berg5e760232011-11-04 11:18:17 +0100985 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
986 i++;
987 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
988 }
Kyeyoon Park1368a382014-04-17 19:57:34 +0530989 CMD(set_qos_map, SET_QOS_MAP);
Johannes Berg8fdc6212009-03-14 09:34:01 +0100990
Kalle Valo4745fc02011-11-17 19:06:10 +0200991#ifdef CONFIG_NL80211_TESTMODE
992 CMD(testmode_cmd, TESTMODE);
993#endif
994
Johannes Berg8fdc6212009-03-14 09:34:01 +0100995#undef CMD
Samuel Ortizb23aa672009-07-01 21:26:54 +0200996
Johannes Berg6829c872009-07-02 09:13:27 +0200997 if (dev->ops->connect || dev->ops->auth) {
Samuel Ortizb23aa672009-07-01 21:26:54 +0200998 i++;
999 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
1000 }
1001
Johannes Berg6829c872009-07-02 09:13:27 +02001002 if (dev->ops->disconnect || dev->ops->deauth) {
Samuel Ortizb23aa672009-07-01 21:26:54 +02001003 i++;
1004 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
1005 }
1006
Johannes Berg8fdc6212009-03-14 09:34:01 +01001007 nla_nest_end(msg, nl_cmds);
1008
Johannes Berg7c4ef712011-11-18 15:33:48 +01001009 if (dev->ops->remain_on_channel &&
1010 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
Johannes Berga2939112010-12-14 17:54:28 +01001011 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1012 dev->wiphy.max_remain_on_channel_duration);
1013
Johannes Berg7c4ef712011-11-18 15:33:48 +01001014 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
Johannes Bergf7ca38d2010-11-25 10:02:29 +01001015 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
1016
Johannes Berg2e161f72010-08-12 15:38:38 +02001017 if (mgmt_stypes) {
1018 u16 stypes;
1019 struct nlattr *nl_ftypes, *nl_ifs;
1020 enum nl80211_iftype ift;
1021
1022 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1023 if (!nl_ifs)
1024 goto nla_put_failure;
1025
1026 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1027 nl_ftypes = nla_nest_start(msg, ift);
1028 if (!nl_ftypes)
1029 goto nla_put_failure;
1030 i = 0;
1031 stypes = mgmt_stypes[ift].tx;
1032 while (stypes) {
1033 if (stypes & 1)
1034 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
1035 (i << 4) | IEEE80211_FTYPE_MGMT);
1036 stypes >>= 1;
1037 i++;
1038 }
1039 nla_nest_end(msg, nl_ftypes);
1040 }
1041
Johannes Berg74b70a42010-08-24 12:15:53 +02001042 nla_nest_end(msg, nl_ifs);
1043
Johannes Berg2e161f72010-08-12 15:38:38 +02001044 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1045 if (!nl_ifs)
1046 goto nla_put_failure;
1047
1048 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1049 nl_ftypes = nla_nest_start(msg, ift);
1050 if (!nl_ftypes)
1051 goto nla_put_failure;
1052 i = 0;
1053 stypes = mgmt_stypes[ift].rx;
1054 while (stypes) {
1055 if (stypes & 1)
1056 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
1057 (i << 4) | IEEE80211_FTYPE_MGMT);
1058 stypes >>= 1;
1059 i++;
1060 }
1061 nla_nest_end(msg, nl_ftypes);
1062 }
1063 nla_nest_end(msg, nl_ifs);
1064 }
1065
Johannes Bergff1b6e62011-05-04 15:37:28 +02001066 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1067 struct nlattr *nl_wowlan;
1068
1069 nl_wowlan = nla_nest_start(msg,
1070 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1071 if (!nl_wowlan)
1072 goto nla_put_failure;
1073
1074 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
1075 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
1076 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
1077 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
1078 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1079 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
Johannes Berg77dbbb12011-07-13 10:48:55 +02001080 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1081 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1082 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1083 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1084 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1085 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1086 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1087 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1088 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1089 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
Johannes Bergff1b6e62011-05-04 15:37:28 +02001090 if (dev->wiphy.wowlan.n_patterns) {
1091 struct nl80211_wowlan_pattern_support pat = {
1092 .max_patterns = dev->wiphy.wowlan.n_patterns,
1093 .min_pattern_len =
1094 dev->wiphy.wowlan.pattern_min_len,
1095 .max_pattern_len =
1096 dev->wiphy.wowlan.pattern_max_len,
1097 };
1098 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1099 sizeof(pat), &pat);
1100 }
1101
1102 nla_nest_end(msg, nl_wowlan);
1103 }
1104
Johannes Berg7527a782011-05-13 10:58:57 +02001105 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1106 dev->wiphy.software_iftypes))
1107 goto nla_put_failure;
1108
1109 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1110 goto nla_put_failure;
1111
Johannes Berg562a7482011-11-07 12:39:33 +01001112 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1113 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1114 dev->wiphy.ap_sme_capa);
1115
Johannes Berg1f074bd2011-11-06 14:13:33 +01001116 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1117
Ben Greear7e7c8922011-11-18 11:31:59 -08001118 if (dev->wiphy.ht_capa_mod_mask)
1119 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1120 sizeof(*dev->wiphy.ht_capa_mod_mask),
1121 dev->wiphy.ht_capa_mod_mask);
1122
Vasanthakumar Thiagarajanb78cacb2013-05-14 19:04:43 +05301123 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1124 dev->wiphy.max_acl_mac_addrs)
1125 NLA_PUT_U32(msg, NL80211_ATTR_MAC_ACL_MAX,
1126 dev->wiphy.max_acl_mac_addrs);
1127
Jouni Malinen55adc422014-04-17 23:05:02 +05301128 if (dev->wiphy.max_ap_assoc_sta &&
1129 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1130 dev->wiphy.max_ap_assoc_sta))
1131 goto nla_put_failure;
1132
Leo Chang21b770c2014-01-15 19:22:28 -08001133 if (dev->wiphy.n_vendor_commands) {
1134 const struct nl80211_vendor_cmd_info *info;
1135 struct nlattr *nested;
1136
1137 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1138 if (!nested)
1139 goto nla_put_failure;
1140
1141 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1142 info = &dev->wiphy.vendor_commands[i].info;
1143 if (nla_put(msg, i + 1, sizeof(*info), info))
1144 goto nla_put_failure;
1145 }
1146 nla_nest_end(msg, nested);
1147 }
1148
Leo Changd87d6262014-01-15 19:52:00 -08001149 if (dev->wiphy.n_vendor_events) {
1150 const struct nl80211_vendor_cmd_info *info;
1151 struct nlattr *nested;
1152
1153 nested = nla_nest_start(msg,
1154 NL80211_ATTR_VENDOR_EVENTS);
1155 if (!nested)
1156 goto nla_put_failure;
1157
1158 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1159 info = &dev->wiphy.vendor_events[i];
1160 if (nla_put(msg, i + 1, sizeof(*info), info))
1161 goto nla_put_failure;
1162 }
1163 nla_nest_end(msg, nested);
1164 }
1165
Johannes Berg55682962007-09-20 13:09:35 -04001166 return genlmsg_end(msg, hdr);
1167
1168 nla_put_failure:
Thomas Grafbc3ed282008-06-03 16:36:54 -07001169 genlmsg_cancel(msg, hdr);
1170 return -EMSGSIZE;
Johannes Berg55682962007-09-20 13:09:35 -04001171}
1172
1173static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1174{
1175 int idx = 0;
1176 int start = cb->args[0];
1177 struct cfg80211_registered_device *dev;
1178
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05001179 mutex_lock(&cfg80211_mutex);
Johannes Berg79c97e92009-07-07 03:56:12 +02001180 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
Johannes Berg463d0182009-07-14 00:33:35 +02001181 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1182 continue;
Julius Volzb4637272008-07-08 14:02:19 +02001183 if (++idx <= start)
Johannes Berg55682962007-09-20 13:09:35 -04001184 continue;
1185 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1186 cb->nlh->nlmsg_seq, NLM_F_MULTI,
Julius Volzb4637272008-07-08 14:02:19 +02001187 dev) < 0) {
1188 idx--;
Johannes Berg55682962007-09-20 13:09:35 -04001189 break;
Julius Volzb4637272008-07-08 14:02:19 +02001190 }
Johannes Berg55682962007-09-20 13:09:35 -04001191 }
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05001192 mutex_unlock(&cfg80211_mutex);
Johannes Berg55682962007-09-20 13:09:35 -04001193
1194 cb->args[0] = idx;
1195
1196 return skb->len;
1197}
1198
1199static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1200{
1201 struct sk_buff *msg;
Johannes Berg4c476992010-10-04 21:36:35 +02001202 struct cfg80211_registered_device *dev = info->user_ptr[0];
Johannes Berg55682962007-09-20 13:09:35 -04001203
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07001204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg55682962007-09-20 13:09:35 -04001205 if (!msg)
Johannes Berg4c476992010-10-04 21:36:35 +02001206 return -ENOMEM;
Johannes Berg55682962007-09-20 13:09:35 -04001207
Johannes Berg4c476992010-10-04 21:36:35 +02001208 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1209 nlmsg_free(msg);
1210 return -ENOBUFS;
1211 }
Johannes Berg55682962007-09-20 13:09:35 -04001212
Johannes Berg134e6372009-07-10 09:51:34 +00001213 return genlmsg_reply(msg, info);
Johannes Berg55682962007-09-20 13:09:35 -04001214}
1215
Jouni Malinen31888482008-10-30 16:59:24 +02001216static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1217 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1218 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1219 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1220 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1221 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1222};
1223
1224static int parse_txq_params(struct nlattr *tb[],
1225 struct ieee80211_txq_params *txq_params)
1226{
1227 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1228 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1229 !tb[NL80211_TXQ_ATTR_AIFS])
1230 return -EINVAL;
1231
1232 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1233 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1234 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1235 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1236 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1237
1238 return 0;
1239}
1240
Johannes Bergf444de02010-05-05 15:25:02 +02001241static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1242{
1243 /*
1244 * You can only set the channel explicitly for AP, mesh
1245 * and WDS type interfaces; all others have their channel
1246 * managed via their respective "establish a connection"
1247 * command (connect, join, ...)
1248 *
1249 * Monitors are special as they are normally slaved to
1250 * whatever else is going on, so they behave as though
1251 * you tried setting the wiphy channel itself.
1252 */
1253 return !wdev ||
1254 wdev->iftype == NL80211_IFTYPE_AP ||
1255 wdev->iftype == NL80211_IFTYPE_WDS ||
1256 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
Johannes Berg074ac8d2010-09-16 14:58:22 +02001257 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1258 wdev->iftype == NL80211_IFTYPE_P2P_GO;
Johannes Bergf444de02010-05-05 15:25:02 +02001259}
1260
1261static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1262 struct wireless_dev *wdev,
1263 struct genl_info *info)
1264{
1265 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1266 u32 freq;
1267 int result;
1268
1269 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1270 return -EINVAL;
1271
1272 if (!nl80211_can_set_dev_channel(wdev))
1273 return -EOPNOTSUPP;
1274
1275 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1276 channel_type = nla_get_u32(info->attrs[
1277 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1278 if (channel_type != NL80211_CHAN_NO_HT &&
1279 channel_type != NL80211_CHAN_HT20 &&
1280 channel_type != NL80211_CHAN_HT40PLUS &&
1281 channel_type != NL80211_CHAN_HT40MINUS)
1282 return -EINVAL;
1283 }
1284
1285 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1286
1287 mutex_lock(&rdev->devlist_mtx);
1288 if (wdev) {
1289 wdev_lock(wdev);
1290 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1291 wdev_unlock(wdev);
1292 } else {
1293 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1294 }
1295 mutex_unlock(&rdev->devlist_mtx);
1296
1297 return result;
1298}
1299
1300static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1301{
Johannes Berg4c476992010-10-04 21:36:35 +02001302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1303 struct net_device *netdev = info->user_ptr[1];
Johannes Bergf444de02010-05-05 15:25:02 +02001304
Johannes Berg4c476992010-10-04 21:36:35 +02001305 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
Johannes Bergf444de02010-05-05 15:25:02 +02001306}
1307
Bill Jordane8347eb2010-10-01 13:54:28 -04001308static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1309{
Johannes Berg43b19952010-10-07 13:10:30 +02001310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1311 struct net_device *dev = info->user_ptr[1];
1312 struct wireless_dev *wdev = dev->ieee80211_ptr;
Johannes Berg388ac772010-10-07 13:11:09 +02001313 const u8 *bssid;
Bill Jordane8347eb2010-10-01 13:54:28 -04001314
1315 if (!info->attrs[NL80211_ATTR_MAC])
1316 return -EINVAL;
1317
Johannes Berg43b19952010-10-07 13:10:30 +02001318 if (netif_running(dev))
1319 return -EBUSY;
Bill Jordane8347eb2010-10-01 13:54:28 -04001320
Johannes Berg43b19952010-10-07 13:10:30 +02001321 if (!rdev->ops->set_wds_peer)
1322 return -EOPNOTSUPP;
Bill Jordane8347eb2010-10-01 13:54:28 -04001323
Johannes Berg43b19952010-10-07 13:10:30 +02001324 if (wdev->iftype != NL80211_IFTYPE_WDS)
1325 return -EOPNOTSUPP;
Bill Jordane8347eb2010-10-01 13:54:28 -04001326
1327 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Johannes Berg43b19952010-10-07 13:10:30 +02001328 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
Bill Jordane8347eb2010-10-01 13:54:28 -04001329}
1330
1331
Johannes Berg55682962007-09-20 13:09:35 -04001332static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1333{
1334 struct cfg80211_registered_device *rdev;
Johannes Bergf444de02010-05-05 15:25:02 +02001335 struct net_device *netdev = NULL;
1336 struct wireless_dev *wdev;
Bill Jordana1e567c2010-09-10 11:22:32 -04001337 int result = 0, rem_txq_params = 0;
Jouni Malinen31888482008-10-30 16:59:24 +02001338 struct nlattr *nl_txq_params;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001339 u32 changed;
1340 u8 retry_short = 0, retry_long = 0;
1341 u32 frag_threshold = 0, rts_threshold = 0;
Lukáš Turek81077e82009-12-21 22:50:47 +01001342 u8 coverage_class = 0;
Johannes Berg55682962007-09-20 13:09:35 -04001343
Johannes Bergf444de02010-05-05 15:25:02 +02001344 /*
1345 * Try to find the wiphy and netdev. Normally this
1346 * function shouldn't need the netdev, but this is
1347 * done for backward compatibility -- previously
1348 * setting the channel was done per wiphy, but now
1349 * it is per netdev. Previous userland like hostapd
1350 * also passed a netdev to set_wiphy, so that it is
1351 * possible to let that go to the right netdev!
1352 */
Johannes Berg4bbf4d52009-03-24 09:35:46 +01001353 mutex_lock(&cfg80211_mutex);
1354
Johannes Bergf444de02010-05-05 15:25:02 +02001355 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1356 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1357
1358 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1359 if (netdev && netdev->ieee80211_ptr) {
1360 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1361 mutex_lock(&rdev->mtx);
1362 } else
1363 netdev = NULL;
Johannes Berg4bbf4d52009-03-24 09:35:46 +01001364 }
1365
Johannes Bergf444de02010-05-05 15:25:02 +02001366 if (!netdev) {
1367 rdev = __cfg80211_rdev_from_info(info);
1368 if (IS_ERR(rdev)) {
1369 mutex_unlock(&cfg80211_mutex);
Johannes Berg4c476992010-10-04 21:36:35 +02001370 return PTR_ERR(rdev);
Johannes Bergf444de02010-05-05 15:25:02 +02001371 }
1372 wdev = NULL;
1373 netdev = NULL;
1374 result = 0;
1375
1376 mutex_lock(&rdev->mtx);
1377 } else if (netif_running(netdev) &&
1378 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1379 wdev = netdev->ieee80211_ptr;
1380 else
1381 wdev = NULL;
1382
1383 /*
1384 * end workaround code, by now the rdev is available
1385 * and locked, and wdev may or may not be NULL.
1386 */
Johannes Berg4bbf4d52009-03-24 09:35:46 +01001387
1388 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
Jouni Malinen31888482008-10-30 16:59:24 +02001389 result = cfg80211_dev_rename(
1390 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
Johannes Berg4bbf4d52009-03-24 09:35:46 +01001391
1392 mutex_unlock(&cfg80211_mutex);
1393
1394 if (result)
1395 goto bad_res;
Johannes Berg55682962007-09-20 13:09:35 -04001396
Jouni Malinen31888482008-10-30 16:59:24 +02001397 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1398 struct ieee80211_txq_params txq_params;
1399 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1400
1401 if (!rdev->ops->set_txq_params) {
1402 result = -EOPNOTSUPP;
1403 goto bad_res;
1404 }
1405
Eliad Pellerf70f01c2011-09-25 20:06:53 +03001406 if (!netdev) {
1407 result = -EINVAL;
1408 goto bad_res;
1409 }
1410
Johannes Berg133a3ff2011-11-03 14:50:13 +01001411 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1412 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1413 result = -EINVAL;
1414 goto bad_res;
1415 }
1416
Johannes Berg2b5f8b02012-04-02 10:51:55 +02001417 if (!netif_running(netdev)) {
1418 result = -ENETDOWN;
1419 goto bad_res;
1420 }
1421
Jouni Malinen31888482008-10-30 16:59:24 +02001422 nla_for_each_nested(nl_txq_params,
1423 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1424 rem_txq_params) {
1425 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1426 nla_data(nl_txq_params),
1427 nla_len(nl_txq_params),
1428 txq_params_policy);
1429 result = parse_txq_params(tb, &txq_params);
1430 if (result)
1431 goto bad_res;
1432
1433 result = rdev->ops->set_txq_params(&rdev->wiphy,
Eliad Pellerf70f01c2011-09-25 20:06:53 +03001434 netdev,
Jouni Malinen31888482008-10-30 16:59:24 +02001435 &txq_params);
1436 if (result)
1437 goto bad_res;
1438 }
1439 }
1440
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001441 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
Johannes Bergf444de02010-05-05 15:25:02 +02001442 result = __nl80211_set_channel(rdev, wdev, info);
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001443 if (result)
1444 goto bad_res;
1445 }
1446
Juuso Oikarinen98d2ff82010-06-23 12:12:38 +03001447 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1448 enum nl80211_tx_power_setting type;
1449 int idx, mbm = 0;
1450
1451 if (!rdev->ops->set_tx_power) {
Jiri Slaby60ea3852010-07-07 15:02:46 +02001452 result = -EOPNOTSUPP;
Juuso Oikarinen98d2ff82010-06-23 12:12:38 +03001453 goto bad_res;
1454 }
1455
1456 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1457 type = nla_get_u32(info->attrs[idx]);
1458
1459 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1460 (type != NL80211_TX_POWER_AUTOMATIC)) {
1461 result = -EINVAL;
1462 goto bad_res;
1463 }
1464
1465 if (type != NL80211_TX_POWER_AUTOMATIC) {
1466 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1467 mbm = nla_get_u32(info->attrs[idx]);
1468 }
1469
1470 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1471 if (result)
1472 goto bad_res;
1473 }
1474
Bruno Randolfafe0cbf2010-11-10 12:50:50 +09001475 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1476 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1477 u32 tx_ant, rx_ant;
Bruno Randolf7f531e02010-12-16 11:30:22 +09001478 if ((!rdev->wiphy.available_antennas_tx &&
1479 !rdev->wiphy.available_antennas_rx) ||
1480 !rdev->ops->set_antenna) {
Bruno Randolfafe0cbf2010-11-10 12:50:50 +09001481 result = -EOPNOTSUPP;
1482 goto bad_res;
1483 }
1484
1485 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1486 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1487
Bruno Randolfa7ffac92010-12-08 13:59:24 +09001488 /* reject antenna configurations which don't match the
Bruno Randolf7f531e02010-12-16 11:30:22 +09001489 * available antenna masks, except for the "all" mask */
1490 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1491 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
Bruno Randolfa7ffac92010-12-08 13:59:24 +09001492 result = -EINVAL;
1493 goto bad_res;
1494 }
1495
Bruno Randolf7f531e02010-12-16 11:30:22 +09001496 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1497 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
Bruno Randolfa7ffac92010-12-08 13:59:24 +09001498
Bruno Randolfafe0cbf2010-11-10 12:50:50 +09001499 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1500 if (result)
1501 goto bad_res;
1502 }
1503
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001504 changed = 0;
1505
1506 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1507 retry_short = nla_get_u8(
1508 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1509 if (retry_short == 0) {
1510 result = -EINVAL;
1511 goto bad_res;
1512 }
1513 changed |= WIPHY_PARAM_RETRY_SHORT;
1514 }
1515
1516 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1517 retry_long = nla_get_u8(
1518 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1519 if (retry_long == 0) {
1520 result = -EINVAL;
1521 goto bad_res;
1522 }
1523 changed |= WIPHY_PARAM_RETRY_LONG;
1524 }
1525
1526 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1527 frag_threshold = nla_get_u32(
1528 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1529 if (frag_threshold < 256) {
1530 result = -EINVAL;
1531 goto bad_res;
1532 }
1533 if (frag_threshold != (u32) -1) {
1534 /*
1535 * Fragments (apart from the last one) are required to
1536 * have even length. Make the fragmentation code
1537 * simpler by stripping LSB should someone try to use
1538 * odd threshold value.
1539 */
1540 frag_threshold &= ~0x1;
1541 }
1542 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1543 }
1544
1545 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1546 rts_threshold = nla_get_u32(
1547 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1548 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1549 }
1550
Lukáš Turek81077e82009-12-21 22:50:47 +01001551 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1552 coverage_class = nla_get_u8(
1553 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1554 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1555 }
1556
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001557 if (changed) {
1558 u8 old_retry_short, old_retry_long;
1559 u32 old_frag_threshold, old_rts_threshold;
Lukáš Turek81077e82009-12-21 22:50:47 +01001560 u8 old_coverage_class;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001561
1562 if (!rdev->ops->set_wiphy_params) {
1563 result = -EOPNOTSUPP;
1564 goto bad_res;
1565 }
1566
1567 old_retry_short = rdev->wiphy.retry_short;
1568 old_retry_long = rdev->wiphy.retry_long;
1569 old_frag_threshold = rdev->wiphy.frag_threshold;
1570 old_rts_threshold = rdev->wiphy.rts_threshold;
Lukáš Turek81077e82009-12-21 22:50:47 +01001571 old_coverage_class = rdev->wiphy.coverage_class;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001572
1573 if (changed & WIPHY_PARAM_RETRY_SHORT)
1574 rdev->wiphy.retry_short = retry_short;
1575 if (changed & WIPHY_PARAM_RETRY_LONG)
1576 rdev->wiphy.retry_long = retry_long;
1577 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1578 rdev->wiphy.frag_threshold = frag_threshold;
1579 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1580 rdev->wiphy.rts_threshold = rts_threshold;
Lukáš Turek81077e82009-12-21 22:50:47 +01001581 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1582 rdev->wiphy.coverage_class = coverage_class;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001583
1584 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1585 if (result) {
1586 rdev->wiphy.retry_short = old_retry_short;
1587 rdev->wiphy.retry_long = old_retry_long;
1588 rdev->wiphy.frag_threshold = old_frag_threshold;
1589 rdev->wiphy.rts_threshold = old_rts_threshold;
Lukáš Turek81077e82009-12-21 22:50:47 +01001590 rdev->wiphy.coverage_class = old_coverage_class;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001591 }
1592 }
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001593
Johannes Berg306d6112008-12-08 12:39:04 +01001594 bad_res:
Johannes Berg4bbf4d52009-03-24 09:35:46 +01001595 mutex_unlock(&rdev->mtx);
Johannes Bergf444de02010-05-05 15:25:02 +02001596 if (netdev)
1597 dev_put(netdev);
Johannes Berg55682962007-09-20 13:09:35 -04001598 return result;
1599}
1600
1601
1602static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
Johannes Bergd7264052009-04-19 16:23:20 +02001603 struct cfg80211_registered_device *rdev,
Johannes Berg55682962007-09-20 13:09:35 -04001604 struct net_device *dev)
1605{
1606 void *hdr;
1607
1608 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1609 if (!hdr)
1610 return -1;
1611
1612 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
Johannes Bergd7264052009-04-19 16:23:20 +02001613 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
Johannes Berg55682962007-09-20 13:09:35 -04001614 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
Johannes Berg60719ff2008-09-16 14:55:09 +02001615 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
Simon Shields99ca2392017-08-25 16:37:02 +10001616 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr);
Johannes Bergf5ea9122009-08-07 16:17:38 +02001617
1618 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1619 rdev->devlist_generation ^
1620 (cfg80211_rdev_list_generation << 2));
1621
Johannes Berg55682962007-09-20 13:09:35 -04001622 return genlmsg_end(msg, hdr);
1623
1624 nla_put_failure:
Thomas Grafbc3ed282008-06-03 16:36:54 -07001625 genlmsg_cancel(msg, hdr);
1626 return -EMSGSIZE;
Johannes Berg55682962007-09-20 13:09:35 -04001627}
1628
1629static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1630{
1631 int wp_idx = 0;
1632 int if_idx = 0;
1633 int wp_start = cb->args[0];
1634 int if_start = cb->args[1];
Johannes Bergf5ea9122009-08-07 16:17:38 +02001635 struct cfg80211_registered_device *rdev;
Johannes Berg55682962007-09-20 13:09:35 -04001636 struct wireless_dev *wdev;
1637
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05001638 mutex_lock(&cfg80211_mutex);
Johannes Bergf5ea9122009-08-07 16:17:38 +02001639 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1640 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
Johannes Berg463d0182009-07-14 00:33:35 +02001641 continue;
Johannes Bergbba95fe2008-07-29 13:22:51 +02001642 if (wp_idx < wp_start) {
1643 wp_idx++;
Johannes Berg55682962007-09-20 13:09:35 -04001644 continue;
Johannes Bergbba95fe2008-07-29 13:22:51 +02001645 }
Johannes Berg55682962007-09-20 13:09:35 -04001646 if_idx = 0;
1647
Johannes Bergf5ea9122009-08-07 16:17:38 +02001648 mutex_lock(&rdev->devlist_mtx);
1649 list_for_each_entry(wdev, &rdev->netdev_list, list) {
Johannes Bergbba95fe2008-07-29 13:22:51 +02001650 if (if_idx < if_start) {
1651 if_idx++;
Johannes Berg55682962007-09-20 13:09:35 -04001652 continue;
Johannes Bergbba95fe2008-07-29 13:22:51 +02001653 }
Johannes Berg55682962007-09-20 13:09:35 -04001654 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1655 cb->nlh->nlmsg_seq, NLM_F_MULTI,
Johannes Bergf5ea9122009-08-07 16:17:38 +02001656 rdev, wdev->netdev) < 0) {
1657 mutex_unlock(&rdev->devlist_mtx);
Johannes Bergbba95fe2008-07-29 13:22:51 +02001658 goto out;
1659 }
1660 if_idx++;
Johannes Berg55682962007-09-20 13:09:35 -04001661 }
Johannes Bergf5ea9122009-08-07 16:17:38 +02001662 mutex_unlock(&rdev->devlist_mtx);
Johannes Bergbba95fe2008-07-29 13:22:51 +02001663
1664 wp_idx++;
Johannes Berg55682962007-09-20 13:09:35 -04001665 }
Johannes Bergbba95fe2008-07-29 13:22:51 +02001666 out:
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05001667 mutex_unlock(&cfg80211_mutex);
Johannes Berg55682962007-09-20 13:09:35 -04001668
1669 cb->args[0] = wp_idx;
1670 cb->args[1] = if_idx;
1671
1672 return skb->len;
1673}
1674
1675static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1676{
1677 struct sk_buff *msg;
Johannes Berg4c476992010-10-04 21:36:35 +02001678 struct cfg80211_registered_device *dev = info->user_ptr[0];
1679 struct net_device *netdev = info->user_ptr[1];
Johannes Berg55682962007-09-20 13:09:35 -04001680
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07001681 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg55682962007-09-20 13:09:35 -04001682 if (!msg)
Johannes Berg4c476992010-10-04 21:36:35 +02001683 return -ENOMEM;
Johannes Berg55682962007-09-20 13:09:35 -04001684
Johannes Bergd7264052009-04-19 16:23:20 +02001685 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
Johannes Berg4c476992010-10-04 21:36:35 +02001686 dev, netdev) < 0) {
1687 nlmsg_free(msg);
1688 return -ENOBUFS;
1689 }
Johannes Berg55682962007-09-20 13:09:35 -04001690
Johannes Berg134e6372009-07-10 09:51:34 +00001691 return genlmsg_reply(msg, info);
Johannes Berg55682962007-09-20 13:09:35 -04001692}
1693
Michael Wu66f7ac52008-01-31 19:48:22 +01001694static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1695 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1696 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1697 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1698 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1699 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1700};
1701
1702static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1703{
1704 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1705 int flag;
1706
1707 *mntrflags = 0;
1708
1709 if (!nla)
1710 return -EINVAL;
1711
1712 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1713 nla, mntr_flags_policy))
1714 return -EINVAL;
1715
1716 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1717 if (flags[flag])
1718 *mntrflags |= (1<<flag);
1719
1720 return 0;
1721}
1722
Johannes Berg9bc383d2009-11-19 11:55:19 +01001723static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
Johannes Bergad4bb6f2009-11-19 00:56:30 +01001724 struct net_device *netdev, u8 use_4addr,
1725 enum nl80211_iftype iftype)
Johannes Berg9bc383d2009-11-19 11:55:19 +01001726{
Johannes Bergad4bb6f2009-11-19 00:56:30 +01001727 if (!use_4addr) {
Jiri Pirkof350a0a2010-06-15 06:50:45 +00001728 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
Johannes Bergad4bb6f2009-11-19 00:56:30 +01001729 return -EBUSY;
Johannes Berg9bc383d2009-11-19 11:55:19 +01001730 return 0;
Johannes Bergad4bb6f2009-11-19 00:56:30 +01001731 }
Johannes Berg9bc383d2009-11-19 11:55:19 +01001732
1733 switch (iftype) {
1734 case NL80211_IFTYPE_AP_VLAN:
1735 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1736 return 0;
1737 break;
1738 case NL80211_IFTYPE_STATION:
1739 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1740 return 0;
1741 break;
1742 default:
1743 break;
1744 }
1745
1746 return -EOPNOTSUPP;
1747}
1748
Johannes Berg55682962007-09-20 13:09:35 -04001749static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1750{
Johannes Berg4c476992010-10-04 21:36:35 +02001751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001752 struct vif_params params;
Johannes Berge36d56b2009-06-09 21:04:43 +02001753 int err;
Johannes Berg04a773a2009-04-19 21:24:32 +02001754 enum nl80211_iftype otype, ntype;
Johannes Berg4c476992010-10-04 21:36:35 +02001755 struct net_device *dev = info->user_ptr[1];
Johannes Berg92ffe052008-09-16 20:39:36 +02001756 u32 _flags, *flags = NULL;
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001757 bool change = false;
Johannes Berg55682962007-09-20 13:09:35 -04001758
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001759 memset(&params, 0, sizeof(params));
1760
Johannes Berg04a773a2009-04-19 21:24:32 +02001761 otype = ntype = dev->ieee80211_ptr->iftype;
Johannes Berg55682962007-09-20 13:09:35 -04001762
Johannes Berg723b0382008-09-16 20:22:09 +02001763 if (info->attrs[NL80211_ATTR_IFTYPE]) {
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001764 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
Johannes Berg04a773a2009-04-19 21:24:32 +02001765 if (otype != ntype)
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001766 change = true;
Johannes Berg4c476992010-10-04 21:36:35 +02001767 if (ntype > NL80211_IFTYPE_MAX)
1768 return -EINVAL;
Johannes Berg723b0382008-09-16 20:22:09 +02001769 }
1770
Johannes Berg92ffe052008-09-16 20:39:36 +02001771 if (info->attrs[NL80211_ATTR_MESH_ID]) {
Johannes Berg29cbe682010-12-03 09:20:44 +01001772 struct wireless_dev *wdev = dev->ieee80211_ptr;
1773
Johannes Berg4c476992010-10-04 21:36:35 +02001774 if (ntype != NL80211_IFTYPE_MESH_POINT)
1775 return -EINVAL;
Johannes Berg29cbe682010-12-03 09:20:44 +01001776 if (netif_running(dev))
1777 return -EBUSY;
1778
1779 wdev_lock(wdev);
1780 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1781 IEEE80211_MAX_MESH_ID_LEN);
1782 wdev->mesh_id_up_len =
1783 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1784 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1785 wdev->mesh_id_up_len);
1786 wdev_unlock(wdev);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001787 }
1788
Felix Fietkau8b787642009-11-10 18:53:10 +01001789 if (info->attrs[NL80211_ATTR_4ADDR]) {
1790 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1791 change = true;
Johannes Bergad4bb6f2009-11-19 00:56:30 +01001792 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
Johannes Berg9bc383d2009-11-19 11:55:19 +01001793 if (err)
Johannes Berg4c476992010-10-04 21:36:35 +02001794 return err;
Felix Fietkau8b787642009-11-10 18:53:10 +01001795 } else {
1796 params.use_4addr = -1;
1797 }
1798
Johannes Berg92ffe052008-09-16 20:39:36 +02001799 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
Johannes Berg4c476992010-10-04 21:36:35 +02001800 if (ntype != NL80211_IFTYPE_MONITOR)
1801 return -EINVAL;
Johannes Berg92ffe052008-09-16 20:39:36 +02001802 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1803 &_flags);
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001804 if (err)
Johannes Berg4c476992010-10-04 21:36:35 +02001805 return err;
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001806
1807 flags = &_flags;
1808 change = true;
Johannes Berg92ffe052008-09-16 20:39:36 +02001809 }
Johannes Berg3b858752009-03-12 09:55:09 +01001810
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001811 if (change)
Johannes Berg3d54d252009-08-21 14:51:05 +02001812 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
Johannes Bergac7f9cf2009-03-21 17:07:59 +01001813 else
1814 err = 0;
Johannes Berg60719ff2008-09-16 14:55:09 +02001815
Johannes Berg9bc383d2009-11-19 11:55:19 +01001816 if (!err && params.use_4addr != -1)
1817 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1818
Johannes Berg55682962007-09-20 13:09:35 -04001819 return err;
1820}
1821
1822static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1823{
Johannes Berg4c476992010-10-04 21:36:35 +02001824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001825 struct vif_params params;
Johannes Bergf9e10ce2010-12-03 09:20:42 +01001826 struct net_device *dev;
Johannes Berg55682962007-09-20 13:09:35 -04001827 int err;
1828 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
Michael Wu66f7ac52008-01-31 19:48:22 +01001829 u32 flags;
Johannes Berg55682962007-09-20 13:09:35 -04001830
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001831 memset(&params, 0, sizeof(params));
1832
Johannes Berg55682962007-09-20 13:09:35 -04001833 if (!info->attrs[NL80211_ATTR_IFNAME])
1834 return -EINVAL;
1835
1836 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1837 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1838 if (type > NL80211_IFTYPE_MAX)
1839 return -EINVAL;
1840 }
1841
Johannes Berg79c97e92009-07-07 03:56:12 +02001842 if (!rdev->ops->add_virtual_intf ||
Johannes Berg4c476992010-10-04 21:36:35 +02001843 !(rdev->wiphy.interface_modes & (1 << type)))
1844 return -EOPNOTSUPP;
Johannes Berg55682962007-09-20 13:09:35 -04001845
Johannes Berg9bc383d2009-11-19 11:55:19 +01001846 if (info->attrs[NL80211_ATTR_4ADDR]) {
Felix Fietkau8b787642009-11-10 18:53:10 +01001847 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
Johannes Bergad4bb6f2009-11-19 00:56:30 +01001848 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
Johannes Berg9bc383d2009-11-19 11:55:19 +01001849 if (err)
Johannes Berg4c476992010-10-04 21:36:35 +02001850 return err;
Johannes Berg9bc383d2009-11-19 11:55:19 +01001851 }
Felix Fietkau8b787642009-11-10 18:53:10 +01001852
Michael Wu66f7ac52008-01-31 19:48:22 +01001853 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1854 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1855 &flags);
Johannes Bergf9e10ce2010-12-03 09:20:42 +01001856 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
Michael Wu66f7ac52008-01-31 19:48:22 +01001857 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001858 type, err ? NULL : &flags, &params);
Johannes Bergf9e10ce2010-12-03 09:20:42 +01001859 if (IS_ERR(dev))
1860 return PTR_ERR(dev);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01001861
Johannes Berg29cbe682010-12-03 09:20:44 +01001862 if (type == NL80211_IFTYPE_MESH_POINT &&
1863 info->attrs[NL80211_ATTR_MESH_ID]) {
1864 struct wireless_dev *wdev = dev->ieee80211_ptr;
1865
1866 wdev_lock(wdev);
1867 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1868 IEEE80211_MAX_MESH_ID_LEN);
1869 wdev->mesh_id_up_len =
1870 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1871 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1872 wdev->mesh_id_up_len);
1873 wdev_unlock(wdev);
1874 }
1875
Johannes Bergf9e10ce2010-12-03 09:20:42 +01001876 return 0;
Johannes Berg55682962007-09-20 13:09:35 -04001877}
1878
1879static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1880{
Johannes Berg4c476992010-10-04 21:36:35 +02001881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1882 struct net_device *dev = info->user_ptr[1];
Johannes Berg55682962007-09-20 13:09:35 -04001883
Johannes Berg4c476992010-10-04 21:36:35 +02001884 if (!rdev->ops->del_virtual_intf)
1885 return -EOPNOTSUPP;
Johannes Berg3b858752009-03-12 09:55:09 +01001886
Johannes Berg4c476992010-10-04 21:36:35 +02001887 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
Johannes Berg55682962007-09-20 13:09:35 -04001888}
1889
Simon Wunderlich1d9d9212011-11-18 14:20:43 +01001890static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1891{
1892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1893 struct net_device *dev = info->user_ptr[1];
1894 u16 noack_map;
1895
1896 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1897 return -EINVAL;
1898
1899 if (!rdev->ops->set_noack_map)
1900 return -EOPNOTSUPP;
1901
1902 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1903
1904 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1905}
1906
Johannes Berg41ade002007-12-19 02:03:29 +01001907struct get_key_cookie {
1908 struct sk_buff *msg;
1909 int error;
Johannes Bergb9454e82009-07-08 13:29:08 +02001910 int idx;
Johannes Berg41ade002007-12-19 02:03:29 +01001911};
1912
1913static void get_key_callback(void *c, struct key_params *params)
1914{
Johannes Bergb9454e82009-07-08 13:29:08 +02001915 struct nlattr *key;
Johannes Berg41ade002007-12-19 02:03:29 +01001916 struct get_key_cookie *cookie = c;
1917
1918 if (params->key)
1919 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1920 params->key_len, params->key);
1921
1922 if (params->seq)
1923 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1924 params->seq_len, params->seq);
1925
1926 if (params->cipher)
1927 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1928 params->cipher);
1929
Johannes Bergb9454e82009-07-08 13:29:08 +02001930 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1931 if (!key)
1932 goto nla_put_failure;
1933
1934 if (params->key)
1935 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1936 params->key_len, params->key);
1937
1938 if (params->seq)
1939 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1940 params->seq_len, params->seq);
1941
1942 if (params->cipher)
1943 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1944 params->cipher);
1945
1946 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1947
1948 nla_nest_end(cookie->msg, key);
1949
Johannes Berg41ade002007-12-19 02:03:29 +01001950 return;
1951 nla_put_failure:
1952 cookie->error = 1;
1953}
1954
1955static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1956{
Johannes Berg4c476992010-10-04 21:36:35 +02001957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Berg41ade002007-12-19 02:03:29 +01001958 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02001959 struct net_device *dev = info->user_ptr[1];
Johannes Berg41ade002007-12-19 02:03:29 +01001960 u8 key_idx = 0;
Johannes Berge31b8212010-10-05 19:39:30 +02001961 const u8 *mac_addr = NULL;
1962 bool pairwise;
Johannes Berg41ade002007-12-19 02:03:29 +01001963 struct get_key_cookie cookie = {
1964 .error = 0,
1965 };
1966 void *hdr;
1967 struct sk_buff *msg;
1968
1969 if (info->attrs[NL80211_ATTR_KEY_IDX])
1970 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1971
Jouni Malinen3cfcf6a2009-01-08 13:32:02 +02001972 if (key_idx > 5)
Johannes Berg41ade002007-12-19 02:03:29 +01001973 return -EINVAL;
1974
1975 if (info->attrs[NL80211_ATTR_MAC])
1976 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1977
Johannes Berge31b8212010-10-05 19:39:30 +02001978 pairwise = !!mac_addr;
1979 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1980 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1981 if (kt >= NUM_NL80211_KEYTYPES)
1982 return -EINVAL;
1983 if (kt != NL80211_KEYTYPE_GROUP &&
1984 kt != NL80211_KEYTYPE_PAIRWISE)
1985 return -EINVAL;
1986 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1987 }
1988
Johannes Berg4c476992010-10-04 21:36:35 +02001989 if (!rdev->ops->get_key)
1990 return -EOPNOTSUPP;
Johannes Berg41ade002007-12-19 02:03:29 +01001991
Johannes Berg8b1ad6b2015-01-23 11:10:12 +01001992 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1993 return -ENOENT;
1994
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07001995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg4c476992010-10-04 21:36:35 +02001996 if (!msg)
1997 return -ENOMEM;
Johannes Berg41ade002007-12-19 02:03:29 +01001998
1999 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2000 NL80211_CMD_NEW_KEY);
Dan Carpenter367c2a12013-08-14 11:50:01 +00002001 if (!hdr)
Johannes Bergcfd183d2013-10-25 09:15:12 +00002002 goto nla_put_failure;
Johannes Berg41ade002007-12-19 02:03:29 +01002003
2004 cookie.msg = msg;
Johannes Bergb9454e82009-07-08 13:29:08 +02002005 cookie.idx = key_idx;
Johannes Berg41ade002007-12-19 02:03:29 +01002006
2007 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2008 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2009 if (mac_addr)
2010 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2011
Johannes Berge31b8212010-10-05 19:39:30 +02002012 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2013 mac_addr, &cookie, get_key_callback);
Johannes Berg41ade002007-12-19 02:03:29 +01002014
2015 if (err)
Niko Jokinen6c95e2a2009-07-15 11:00:53 +03002016 goto free_msg;
Johannes Berg41ade002007-12-19 02:03:29 +01002017
2018 if (cookie.error)
2019 goto nla_put_failure;
2020
2021 genlmsg_end(msg, hdr);
Johannes Berg4c476992010-10-04 21:36:35 +02002022 return genlmsg_reply(msg, info);
Johannes Berg41ade002007-12-19 02:03:29 +01002023
2024 nla_put_failure:
2025 err = -ENOBUFS;
Niko Jokinen6c95e2a2009-07-15 11:00:53 +03002026 free_msg:
Johannes Berg41ade002007-12-19 02:03:29 +01002027 nlmsg_free(msg);
Johannes Berg41ade002007-12-19 02:03:29 +01002028 return err;
2029}
2030
2031static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2032{
Johannes Berg4c476992010-10-04 21:36:35 +02002033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Bergb9454e82009-07-08 13:29:08 +02002034 struct key_parse key;
Johannes Berg41ade002007-12-19 02:03:29 +01002035 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02002036 struct net_device *dev = info->user_ptr[1];
Johannes Berg41ade002007-12-19 02:03:29 +01002037
Johannes Bergb9454e82009-07-08 13:29:08 +02002038 err = nl80211_parse_key(info, &key);
2039 if (err)
2040 return err;
2041
2042 if (key.idx < 0)
Johannes Berg41ade002007-12-19 02:03:29 +01002043 return -EINVAL;
2044
Johannes Bergb9454e82009-07-08 13:29:08 +02002045 /* only support setting default key */
2046 if (!key.def && !key.defmgmt)
Johannes Berg41ade002007-12-19 02:03:29 +01002047 return -EINVAL;
2048
Johannes Bergfffd0932009-07-08 14:22:54 +02002049 wdev_lock(dev->ieee80211_ptr);
Johannes Bergdbd2fd62010-12-09 19:58:59 +01002050
2051 if (key.def) {
2052 if (!rdev->ops->set_default_key) {
2053 err = -EOPNOTSUPP;
2054 goto out;
2055 }
2056
2057 err = nl80211_key_allowed(dev->ieee80211_ptr);
2058 if (err)
2059 goto out;
2060
Johannes Bergdbd2fd62010-12-09 19:58:59 +01002061 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2062 key.def_uni, key.def_multi);
2063
2064 if (err)
2065 goto out;
Johannes Bergfffd0932009-07-08 14:22:54 +02002066
Johannes Berg3d23e342009-09-29 23:27:28 +02002067#ifdef CONFIG_CFG80211_WEXT
Johannes Bergdbd2fd62010-12-09 19:58:59 +01002068 dev->ieee80211_ptr->wext.default_key = key.idx;
Johannes Berg08645122009-05-11 13:54:58 +02002069#endif
Johannes Bergdbd2fd62010-12-09 19:58:59 +01002070 } else {
2071 if (key.def_uni || !key.def_multi) {
2072 err = -EINVAL;
2073 goto out;
2074 }
2075
2076 if (!rdev->ops->set_default_mgmt_key) {
2077 err = -EOPNOTSUPP;
2078 goto out;
2079 }
2080
2081 err = nl80211_key_allowed(dev->ieee80211_ptr);
2082 if (err)
2083 goto out;
2084
2085 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2086 dev, key.idx);
2087 if (err)
2088 goto out;
2089
2090#ifdef CONFIG_CFG80211_WEXT
2091 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2092#endif
2093 }
2094
2095 out:
Johannes Bergfffd0932009-07-08 14:22:54 +02002096 wdev_unlock(dev->ieee80211_ptr);
Johannes Berg41ade002007-12-19 02:03:29 +01002097
Johannes Berg41ade002007-12-19 02:03:29 +01002098 return err;
2099}
2100
2101static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2102{
Johannes Berg4c476992010-10-04 21:36:35 +02002103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Bergfffd0932009-07-08 14:22:54 +02002104 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02002105 struct net_device *dev = info->user_ptr[1];
Johannes Bergb9454e82009-07-08 13:29:08 +02002106 struct key_parse key;
Johannes Berge31b8212010-10-05 19:39:30 +02002107 const u8 *mac_addr = NULL;
Johannes Berg41ade002007-12-19 02:03:29 +01002108
Johannes Bergb9454e82009-07-08 13:29:08 +02002109 err = nl80211_parse_key(info, &key);
2110 if (err)
2111 return err;
Johannes Berg41ade002007-12-19 02:03:29 +01002112
Johannes Bergb9454e82009-07-08 13:29:08 +02002113 if (!key.p.key)
Johannes Berg41ade002007-12-19 02:03:29 +01002114 return -EINVAL;
2115
Johannes Berg41ade002007-12-19 02:03:29 +01002116 if (info->attrs[NL80211_ATTR_MAC])
2117 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2118
Johannes Berge31b8212010-10-05 19:39:30 +02002119 if (key.type == -1) {
2120 if (mac_addr)
2121 key.type = NL80211_KEYTYPE_PAIRWISE;
2122 else
2123 key.type = NL80211_KEYTYPE_GROUP;
2124 }
2125
2126 /* for now */
2127 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2128 key.type != NL80211_KEYTYPE_GROUP)
2129 return -EINVAL;
2130
Johannes Berg4c476992010-10-04 21:36:35 +02002131 if (!rdev->ops->add_key)
2132 return -EOPNOTSUPP;
Johannes Berg3b858752009-03-12 09:55:09 +01002133
Johannes Berge31b8212010-10-05 19:39:30 +02002134 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2135 key.type == NL80211_KEYTYPE_PAIRWISE,
2136 mac_addr))
Johannes Berg4c476992010-10-04 21:36:35 +02002137 return -EINVAL;
Johannes Bergfffd0932009-07-08 14:22:54 +02002138
2139 wdev_lock(dev->ieee80211_ptr);
2140 err = nl80211_key_allowed(dev->ieee80211_ptr);
2141 if (!err)
2142 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
Johannes Berge31b8212010-10-05 19:39:30 +02002143 key.type == NL80211_KEYTYPE_PAIRWISE,
Johannes Bergfffd0932009-07-08 14:22:54 +02002144 mac_addr, &key.p);
2145 wdev_unlock(dev->ieee80211_ptr);
Johannes Berg41ade002007-12-19 02:03:29 +01002146
Johannes Berg41ade002007-12-19 02:03:29 +01002147 return err;
2148}
2149
2150static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2151{
Johannes Berg4c476992010-10-04 21:36:35 +02002152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Berg41ade002007-12-19 02:03:29 +01002153 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02002154 struct net_device *dev = info->user_ptr[1];
Johannes Berg41ade002007-12-19 02:03:29 +01002155 u8 *mac_addr = NULL;
Johannes Bergb9454e82009-07-08 13:29:08 +02002156 struct key_parse key;
Johannes Berg41ade002007-12-19 02:03:29 +01002157
Johannes Bergb9454e82009-07-08 13:29:08 +02002158 err = nl80211_parse_key(info, &key);
2159 if (err)
2160 return err;
Johannes Berg41ade002007-12-19 02:03:29 +01002161
2162 if (info->attrs[NL80211_ATTR_MAC])
2163 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2164
Johannes Berge31b8212010-10-05 19:39:30 +02002165 if (key.type == -1) {
2166 if (mac_addr)
2167 key.type = NL80211_KEYTYPE_PAIRWISE;
2168 else
2169 key.type = NL80211_KEYTYPE_GROUP;
2170 }
2171
2172 /* for now */
2173 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2174 key.type != NL80211_KEYTYPE_GROUP)
2175 return -EINVAL;
2176
Johannes Berg4c476992010-10-04 21:36:35 +02002177 if (!rdev->ops->del_key)
2178 return -EOPNOTSUPP;
Johannes Berg41ade002007-12-19 02:03:29 +01002179
Johannes Bergfffd0932009-07-08 14:22:54 +02002180 wdev_lock(dev->ieee80211_ptr);
2181 err = nl80211_key_allowed(dev->ieee80211_ptr);
Johannes Berge31b8212010-10-05 19:39:30 +02002182
Johannes Berg8b1ad6b2015-01-23 11:10:12 +01002183 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
Johannes Berge31b8212010-10-05 19:39:30 +02002184 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2185 err = -ENOENT;
2186
Johannes Bergfffd0932009-07-08 14:22:54 +02002187 if (!err)
Johannes Berge31b8212010-10-05 19:39:30 +02002188 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2189 key.type == NL80211_KEYTYPE_PAIRWISE,
2190 mac_addr);
Johannes Berg41ade002007-12-19 02:03:29 +01002191
Johannes Berg3d23e342009-09-29 23:27:28 +02002192#ifdef CONFIG_CFG80211_WEXT
Johannes Berg08645122009-05-11 13:54:58 +02002193 if (!err) {
Johannes Bergb9454e82009-07-08 13:29:08 +02002194 if (key.idx == dev->ieee80211_ptr->wext.default_key)
Johannes Berg08645122009-05-11 13:54:58 +02002195 dev->ieee80211_ptr->wext.default_key = -1;
Johannes Bergb9454e82009-07-08 13:29:08 +02002196 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
Johannes Berg08645122009-05-11 13:54:58 +02002197 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2198 }
2199#endif
Johannes Bergfffd0932009-07-08 14:22:54 +02002200 wdev_unlock(dev->ieee80211_ptr);
Johannes Berg08645122009-05-11 13:54:58 +02002201
Johannes Berg41ade002007-12-19 02:03:29 +01002202 return err;
2203}
2204
Vasanthakumar Thiagarajanb78cacb2013-05-14 19:04:43 +05302205/* This function returns an error or the number of nested attributes */
2206static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2207{
2208 struct nlattr *attr;
2209 int n_entries = 0, tmp;
2210
2211 nla_for_each_nested(attr, nl_attr, tmp) {
2212 if (nla_len(attr) != ETH_ALEN)
2213 return -EINVAL;
2214
2215 n_entries++;
2216 }
2217
2218 return n_entries;
2219}
2220
2221/*
2222 * This function parses ACL information and allocates memory for ACL data.
2223 * On successful return, the calling function is responsible to free the
2224 * ACL buffer returned by this function.
2225 */
2226static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2227 struct genl_info *info)
2228{
2229 enum nl80211_acl_policy acl_policy;
2230 struct nlattr *attr;
2231 struct cfg80211_acl_data *acl;
2232 int i = 0, n_entries, tmp;
2233
2234 if (!wiphy->max_acl_mac_addrs)
2235 return ERR_PTR(-EOPNOTSUPP);
2236
2237 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2238 return ERR_PTR(-EINVAL);
2239
2240 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2241 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2242 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2243 return ERR_PTR(-EINVAL);
2244
2245 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2246 return ERR_PTR(-EINVAL);
2247
2248 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2249 if (n_entries < 0)
2250 return ERR_PTR(n_entries);
2251
2252 if (n_entries > wiphy->max_acl_mac_addrs)
2253 return ERR_PTR(-ENOTSUPP);
2254
2255 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2256 GFP_KERNEL);
2257 if (!acl)
2258 return ERR_PTR(-ENOMEM);
2259
2260 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2261 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2262 i++;
2263 }
2264
2265 acl->n_acl_entries = n_entries;
2266 acl->acl_policy = acl_policy;
2267
2268 return acl;
2269}
2270
2271static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2272{
2273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2274 struct net_device *dev = info->user_ptr[1];
2275 struct cfg80211_acl_data *acl;
2276 int err;
2277
2278 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2279 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2280 return -EOPNOTSUPP;
2281
2282 if (!dev->ieee80211_ptr->beacon_interval)
2283 return -EINVAL;
2284
2285 acl = parse_acl_data(&rdev->wiphy, info);
2286 if (IS_ERR(acl))
2287 return PTR_ERR(acl);
2288
2289 err = rdev->ops->set_mac_acl(&rdev->wiphy, dev, acl);
2290
2291 kfree(acl);
2292
2293 return err;
2294}
2295
Johannes Berg88600202012-02-13 15:17:18 +01002296static int nl80211_parse_beacon(struct genl_info *info,
2297 struct cfg80211_beacon_data *bcn)
Johannes Berged1b6cc2007-12-19 02:03:32 +01002298{
Johannes Berg88600202012-02-13 15:17:18 +01002299 bool haveinfo = false;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002300
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002301 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2302 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2303 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2304 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
Johannes Bergf4a11bb2009-03-27 12:40:28 +01002305 return -EINVAL;
2306
Johannes Berg88600202012-02-13 15:17:18 +01002307 memset(bcn, 0, sizeof(*bcn));
Johannes Berged1b6cc2007-12-19 02:03:32 +01002308
Johannes Berged1b6cc2007-12-19 02:03:32 +01002309 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
Johannes Berg6e0d19a2019-09-20 21:54:17 +02002310 int ret = validate_beacon_head(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2311
2312 if (ret)
2313 return ret;
2314
Johannes Berg88600202012-02-13 15:17:18 +01002315 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2316 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2317 if (!bcn->head_len)
2318 return -EINVAL;
2319 haveinfo = true;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002320 }
2321
2322 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
Johannes Berg88600202012-02-13 15:17:18 +01002323 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2324 bcn->tail_len =
Johannes Berged1b6cc2007-12-19 02:03:32 +01002325 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
Johannes Berg88600202012-02-13 15:17:18 +01002326 haveinfo = true;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002327 }
2328
Johannes Berg4c476992010-10-04 21:36:35 +02002329 if (!haveinfo)
2330 return -EINVAL;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002331
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002332 if (info->attrs[NL80211_ATTR_IE]) {
Johannes Berg88600202012-02-13 15:17:18 +01002333 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2334 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002335 }
2336
2337 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
Johannes Berg88600202012-02-13 15:17:18 +01002338 bcn->proberesp_ies =
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002339 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
Johannes Berg88600202012-02-13 15:17:18 +01002340 bcn->proberesp_ies_len =
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002341 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2342 }
2343
2344 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
Johannes Berg88600202012-02-13 15:17:18 +01002345 bcn->assocresp_ies =
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002346 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
Johannes Berg88600202012-02-13 15:17:18 +01002347 bcn->assocresp_ies_len =
Jouni Malinen9946ecf2011-08-10 23:55:56 +03002348 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2349 }
2350
Arik Nemtsov00f740e2011-11-10 11:28:56 +02002351 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
Johannes Berg88600202012-02-13 15:17:18 +01002352 bcn->probe_resp =
Arik Nemtsov00f740e2011-11-10 11:28:56 +02002353 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
Johannes Berg88600202012-02-13 15:17:18 +01002354 bcn->probe_resp_len =
Arik Nemtsov00f740e2011-11-10 11:28:56 +02002355 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2356 }
2357
Johannes Berg88600202012-02-13 15:17:18 +01002358 return 0;
2359}
2360
2361static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2362{
2363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2364 struct net_device *dev = info->user_ptr[1];
2365 struct wireless_dev *wdev = dev->ieee80211_ptr;
2366 struct cfg80211_ap_settings params;
2367 int err;
2368
2369 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2370 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2371 return -EOPNOTSUPP;
2372
2373 if (!rdev->ops->start_ap)
2374 return -EOPNOTSUPP;
2375
2376 if (wdev->beacon_interval)
2377 return -EALREADY;
2378
2379 memset(&params, 0, sizeof(params));
2380
2381 /* these are required for START_AP */
2382 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2383 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2384 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2385 return -EINVAL;
2386
2387 err = nl80211_parse_beacon(info, &params.beacon);
2388 if (err)
2389 return err;
2390
2391 params.beacon_interval =
2392 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2393 params.dtim_period =
2394 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2395
2396 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2397 if (err)
2398 return err;
2399
2400 /*
2401 * In theory, some of these attributes should be required here
2402 * but since they were not used when the command was originally
2403 * added, keep them optional for old user space programs to let
2404 * them continue to work with drivers that do not need the
2405 * additional information -- drivers must check!
2406 */
2407 if (info->attrs[NL80211_ATTR_SSID]) {
2408 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2409 params.ssid_len =
2410 nla_len(info->attrs[NL80211_ATTR_SSID]);
2411 if (params.ssid_len == 0 ||
2412 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2413 return -EINVAL;
2414 }
2415
2416 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2417 params.hidden_ssid = nla_get_u32(
2418 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2419 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2420 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2421 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2422 return -EINVAL;
2423 }
2424
2425 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2426
2427 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2428 params.auth_type = nla_get_u32(
2429 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2430 if (!nl80211_valid_auth_type(params.auth_type))
2431 return -EINVAL;
2432 } else
2433 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2434
2435 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2436 NL80211_MAX_NR_CIPHER_SUITES);
2437 if (err)
2438 return err;
2439
Vasanthakumar Thiagarajan1b658f12012-03-02 15:50:02 +05302440 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2441 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2442 return -EOPNOTSUPP;
2443 params.inactivity_timeout = nla_get_u16(
2444 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2445 }
2446
Vasanthakumar Thiagarajanb78cacb2013-05-14 19:04:43 +05302447 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2448 params.acl = parse_acl_data(&rdev->wiphy, info);
2449 if (IS_ERR(params.acl))
2450 return PTR_ERR(params.acl);
2451 }
2452
Johannes Berg88600202012-02-13 15:17:18 +01002453 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
2454 if (!err)
2455 wdev->beacon_interval = params.beacon_interval;
Vasanthakumar Thiagarajanb78cacb2013-05-14 19:04:43 +05302456
2457 kfree(params.acl);
2458
Johannes Berg56d18932011-05-09 18:41:15 +02002459 return err;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002460}
2461
Johannes Berg88600202012-02-13 15:17:18 +01002462static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2463{
2464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2465 struct net_device *dev = info->user_ptr[1];
2466 struct wireless_dev *wdev = dev->ieee80211_ptr;
2467 struct cfg80211_beacon_data params;
2468 int err;
2469
2470 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2471 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2472 return -EOPNOTSUPP;
2473
2474 if (!rdev->ops->change_beacon)
2475 return -EOPNOTSUPP;
2476
2477 if (!wdev->beacon_interval)
2478 return -EINVAL;
2479
2480 err = nl80211_parse_beacon(info, &params);
2481 if (err)
2482 return err;
2483
2484 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2485}
2486
2487static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
Johannes Berged1b6cc2007-12-19 02:03:32 +01002488{
Johannes Berg4c476992010-10-04 21:36:35 +02002489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2490 struct net_device *dev = info->user_ptr[1];
Johannes Berg56d18932011-05-09 18:41:15 +02002491 struct wireless_dev *wdev = dev->ieee80211_ptr;
2492 int err;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002493
Johannes Berg88600202012-02-13 15:17:18 +01002494 if (!rdev->ops->stop_ap)
Johannes Berg4c476992010-10-04 21:36:35 +02002495 return -EOPNOTSUPP;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002496
Johannes Berg074ac8d2010-09-16 14:58:22 +02002497 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
Johannes Berg4c476992010-10-04 21:36:35 +02002498 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2499 return -EOPNOTSUPP;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002500
Johannes Berg88600202012-02-13 15:17:18 +01002501 if (!wdev->beacon_interval)
2502 return -ENOENT;
2503
2504 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
Sameer Thalappilc7c6d0d2013-06-14 17:12:12 -07002505 wdev->beacon_interval = 0;
2506
Johannes Berg56d18932011-05-09 18:41:15 +02002507 return err;
Johannes Berged1b6cc2007-12-19 02:03:32 +01002508}
2509
Johannes Berg5727ef12007-12-19 02:03:34 +01002510static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2511 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2512 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2513 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
Jouni Malinen0e467242009-05-11 21:57:55 +03002514 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
Javier Cardonab39c48f2011-04-07 15:08:30 -07002515 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
Johannes Bergd83023d2011-12-14 09:29:15 +01002516 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
Johannes Berg5727ef12007-12-19 02:03:34 +01002517};
2518
Johannes Bergeccb8e82009-05-11 21:57:56 +03002519static int parse_station_flags(struct genl_info *info,
Johannes Bergbdd3ae32012-01-02 13:30:03 +01002520 enum nl80211_iftype iftype,
Johannes Bergeccb8e82009-05-11 21:57:56 +03002521 struct station_parameters *params)
Johannes Berg5727ef12007-12-19 02:03:34 +01002522{
2523 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
Johannes Bergeccb8e82009-05-11 21:57:56 +03002524 struct nlattr *nla;
Johannes Berg5727ef12007-12-19 02:03:34 +01002525 int flag;
2526
Johannes Bergeccb8e82009-05-11 21:57:56 +03002527 /*
2528 * Try parsing the new attribute first so userspace
2529 * can specify both for older kernels.
2530 */
2531 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2532 if (nla) {
2533 struct nl80211_sta_flag_update *sta_flags;
Johannes Berg5727ef12007-12-19 02:03:34 +01002534
Johannes Bergeccb8e82009-05-11 21:57:56 +03002535 sta_flags = nla_data(nla);
2536 params->sta_flags_mask = sta_flags->mask;
2537 params->sta_flags_set = sta_flags->set;
2538 if ((params->sta_flags_mask |
2539 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2540 return -EINVAL;
2541 return 0;
2542 }
2543
2544 /* if present, parse the old attribute */
2545
2546 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
Johannes Berg5727ef12007-12-19 02:03:34 +01002547 if (!nla)
2548 return 0;
2549
2550 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2551 nla, sta_flags_policy))
2552 return -EINVAL;
2553
Johannes Bergbdd3ae32012-01-02 13:30:03 +01002554 /*
2555 * Only allow certain flags for interface types so that
2556 * other attributes are silently ignored. Remember that
2557 * this is backward compatibility code with old userspace
2558 * and shouldn't be hit in other cases anyway.
2559 */
2560 switch (iftype) {
2561 case NL80211_IFTYPE_AP:
2562 case NL80211_IFTYPE_AP_VLAN:
2563 case NL80211_IFTYPE_P2P_GO:
2564 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2565 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2566 BIT(NL80211_STA_FLAG_WME) |
2567 BIT(NL80211_STA_FLAG_MFP);
2568 break;
2569 case NL80211_IFTYPE_P2P_CLIENT:
2570 case NL80211_IFTYPE_STATION:
2571 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2572 BIT(NL80211_STA_FLAG_TDLS_PEER);
2573 break;
2574 case NL80211_IFTYPE_MESH_POINT:
2575 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2576 BIT(NL80211_STA_FLAG_MFP) |
2577 BIT(NL80211_STA_FLAG_AUTHORIZED);
2578 default:
2579 return -EINVAL;
2580 }
Johannes Berg5727ef12007-12-19 02:03:34 +01002581
2582 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2583 if (flags[flag])
Johannes Bergeccb8e82009-05-11 21:57:56 +03002584 params->sta_flags_set |= (1<<flag);
Johannes Berg5727ef12007-12-19 02:03:34 +01002585
2586 return 0;
2587}
2588
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002589static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2590 int attr)
2591{
2592 struct nlattr *rate;
Vladimir Kondratiev07e44b12012-07-05 14:25:49 +03002593 u32 bitrate;
2594 u16 bitrate_compat;
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002595
2596 rate = nla_nest_start(msg, attr);
2597 if (!rate)
Johannes Berg99958b22013-03-19 14:28:37 -07002598 return false;
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002599
2600 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2601 bitrate = cfg80211_calculate_bitrate(info);
Vladimir Kondratiev07e44b12012-07-05 14:25:49 +03002602 /* report 16-bit bitrate only if we can */
2603 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2604 if (bitrate > 0 &&
2605 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2606 return false;
2607 if (bitrate_compat > 0 &&
2608 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2609 return false;
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002610
Johannes Berg99958b22013-03-19 14:28:37 -07002611 if (info->flags & RATE_INFO_FLAGS_MCS) {
2612 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2613 return false;
2614 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2615 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2616 return false;
2617 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2618 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2619 return false;
2620 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2621 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2622 return false;
2623 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2624 return false;
2625 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2626 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2627 return false;
2628 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2629 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2630 return false;
2631 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2632 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2633 return false;
2634 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2635 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2636 return false;
2637 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2638 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2639 return false;
2640 }
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002641
2642 nla_nest_end(msg, rate);
2643 return true;
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002644}
2645
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002646static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
John W. Linville66266b32012-03-15 13:25:41 -04002647 int flags,
2648 struct cfg80211_registered_device *rdev,
2649 struct net_device *dev,
Johannes Berg98b62182009-12-23 13:15:44 +01002650 const u8 *mac_addr, struct station_info *sinfo)
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002651{
2652 void *hdr;
Paul Stewartf4263c92011-03-31 09:25:41 -07002653 struct nlattr *sinfoattr, *bss_param;
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002654
2655 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2656 if (!hdr)
2657 return -1;
2658
2659 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2660 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2661
Johannes Bergf5ea9122009-08-07 16:17:38 +02002662 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2663
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002664 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2665 if (!sinfoattr)
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002666 goto nla_put_failure;
Mohammed Shafi Shajakhanebe27c92011-04-08 21:24:24 +05302667 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2668 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2669 sinfo->connected_time);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002670 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2671 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2672 sinfo->inactive_time);
2673 if (sinfo->filled & STATION_INFO_RX_BYTES)
2674 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2675 sinfo->rx_bytes);
2676 if (sinfo->filled & STATION_INFO_TX_BYTES)
2677 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2678 sinfo->tx_bytes);
2679 if (sinfo->filled & STATION_INFO_LLID)
2680 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2681 sinfo->llid);
2682 if (sinfo->filled & STATION_INFO_PLID)
2683 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2684 sinfo->plid);
2685 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2686 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2687 sinfo->plink_state);
John W. Linville66266b32012-03-15 13:25:41 -04002688 switch (rdev->wiphy.signal_type) {
2689 case CFG80211_SIGNAL_TYPE_MBM:
2690 if (sinfo->filled & STATION_INFO_SIGNAL)
2691 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2692 sinfo->signal);
2693 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2694 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2695 sinfo->signal_avg);
2696 break;
2697 default:
2698 break;
2699 }
Henning Rogge420e7fa2008-12-11 22:04:19 +01002700 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002701 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2702 NL80211_STA_INFO_TX_BITRATE))
Henning Rogge420e7fa2008-12-11 22:04:19 +01002703 goto nla_put_failure;
Felix Fietkauc8dcfd82011-02-27 22:08:00 +01002704 }
2705 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2706 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2707 NL80211_STA_INFO_RX_BITRATE))
2708 goto nla_put_failure;
Henning Rogge420e7fa2008-12-11 22:04:19 +01002709 }
Jouni Malinen98c8a60a2009-02-17 13:24:57 +02002710 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2711 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2712 sinfo->rx_packets);
2713 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2714 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2715 sinfo->tx_packets);
Bruno Randolfb206b4e2010-10-06 18:34:12 +09002716 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2717 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2718 sinfo->tx_retries);
2719 if (sinfo->filled & STATION_INFO_TX_FAILED)
2720 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2721 sinfo->tx_failed);
Paul Stewarta85e1d52011-12-09 11:01:49 -08002722 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2723 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2724 sinfo->beacon_loss_count);
Paul Stewartf4263c92011-03-31 09:25:41 -07002725 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2726 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2727 if (!bss_param)
2728 goto nla_put_failure;
2729
2730 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2731 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2732 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2733 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2734 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2735 NLA_PUT_FLAG(msg,
2736 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2737 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2738 sinfo->bss_param.dtim_period);
2739 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2740 sinfo->bss_param.beacon_interval);
2741
2742 nla_nest_end(msg, bss_param);
2743 }
Helmut Schaabb6e7532011-10-13 16:30:39 +02002744 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2745 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2746 sizeof(struct nl80211_sta_flag_update),
2747 &sinfo->sta_flags);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002748 nla_nest_end(msg, sinfoattr);
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002749
Felix Fietkau040bdf72011-08-10 19:00:33 -06002750 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
Jouni Malinen50d3dfb2011-08-08 12:11:52 +03002751 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2752 sinfo->assoc_req_ies);
2753
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002754 return genlmsg_end(msg, hdr);
2755
2756 nla_put_failure:
Thomas Grafbc3ed282008-06-03 16:36:54 -07002757 genlmsg_cancel(msg, hdr);
2758 return -EMSGSIZE;
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002759}
2760
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002761static int nl80211_dump_station(struct sk_buff *skb,
Johannes Bergbba95fe2008-07-29 13:22:51 +02002762 struct netlink_callback *cb)
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002763{
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002764 struct station_info sinfo;
2765 struct cfg80211_registered_device *dev;
Johannes Bergbba95fe2008-07-29 13:22:51 +02002766 struct net_device *netdev;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002767 u8 mac_addr[ETH_ALEN];
Johannes Bergbba95fe2008-07-29 13:22:51 +02002768 int sta_idx = cb->args[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002769 int err;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002770
Johannes Berg67748892010-10-04 21:14:06 +02002771 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2772 if (err)
2773 return err;
Johannes Bergbba95fe2008-07-29 13:22:51 +02002774
2775 if (!dev->ops->dump_station) {
Jouni Malineneec60b02009-03-20 21:21:19 +02002776 err = -EOPNOTSUPP;
Johannes Bergbba95fe2008-07-29 13:22:51 +02002777 goto out_err;
2778 }
2779
Johannes Bergbba95fe2008-07-29 13:22:51 +02002780 while (1) {
Jouni Malinenf612ced2011-08-11 11:46:22 +03002781 memset(&sinfo, 0, sizeof(sinfo));
Johannes Bergbba95fe2008-07-29 13:22:51 +02002782 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2783 mac_addr, &sinfo);
2784 if (err == -ENOENT)
2785 break;
2786 if (err)
Johannes Berg3b858752009-03-12 09:55:09 +01002787 goto out_err;
Johannes Bergbba95fe2008-07-29 13:22:51 +02002788
2789 if (nl80211_send_station(skb,
2790 NETLINK_CB(cb->skb).pid,
2791 cb->nlh->nlmsg_seq, NLM_F_MULTI,
John W. Linville66266b32012-03-15 13:25:41 -04002792 dev, netdev, mac_addr,
Johannes Bergbba95fe2008-07-29 13:22:51 +02002793 &sinfo) < 0)
2794 goto out;
2795
2796 sta_idx++;
2797 }
2798
2799
2800 out:
2801 cb->args[1] = sta_idx;
2802 err = skb->len;
Johannes Bergbba95fe2008-07-29 13:22:51 +02002803 out_err:
Johannes Berg67748892010-10-04 21:14:06 +02002804 nl80211_finish_netdev_dump(dev);
Johannes Bergbba95fe2008-07-29 13:22:51 +02002805
2806 return err;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002807}
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002808
Johannes Berg5727ef12007-12-19 02:03:34 +01002809static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2810{
Johannes Berg4c476992010-10-04 21:36:35 +02002811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2812 struct net_device *dev = info->user_ptr[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002813 struct station_info sinfo;
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002814 struct sk_buff *msg;
2815 u8 *mac_addr = NULL;
Johannes Berg4c476992010-10-04 21:36:35 +02002816 int err;
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002817
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002818 memset(&sinfo, 0, sizeof(sinfo));
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002819
2820 if (!info->attrs[NL80211_ATTR_MAC])
2821 return -EINVAL;
2822
2823 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2824
Johannes Berg4c476992010-10-04 21:36:35 +02002825 if (!rdev->ops->get_station)
2826 return -EOPNOTSUPP;
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002827
Johannes Berg79c97e92009-07-07 03:56:12 +02002828 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002829 if (err)
Johannes Berg4c476992010-10-04 21:36:35 +02002830 return err;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01002831
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07002832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002833 if (!msg)
Johannes Berg4c476992010-10-04 21:36:35 +02002834 return -ENOMEM;
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002835
2836 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
John W. Linville66266b32012-03-15 13:25:41 -04002837 rdev, dev, mac_addr, &sinfo) < 0) {
Johannes Berg4c476992010-10-04 21:36:35 +02002838 nlmsg_free(msg);
2839 return -ENOBUFS;
2840 }
Johannes Bergfd5b74d2007-12-19 02:03:36 +01002841
Johannes Berg4c476992010-10-04 21:36:35 +02002842 return genlmsg_reply(msg, info);
Johannes Berg5727ef12007-12-19 02:03:34 +01002843}
2844
2845/*
Felix Fietkauc258d2d2009-11-11 17:23:31 +01002846 * Get vlan interface making sure it is running and on the right wiphy.
Johannes Berg5727ef12007-12-19 02:03:34 +01002847 */
Johannes Berg80b99892011-11-18 16:23:01 +01002848static struct net_device *get_vlan(struct genl_info *info,
2849 struct cfg80211_registered_device *rdev)
Johannes Berg5727ef12007-12-19 02:03:34 +01002850{
Johannes Berg463d0182009-07-14 00:33:35 +02002851 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
Johannes Berg80b99892011-11-18 16:23:01 +01002852 struct net_device *v;
2853 int ret;
Johannes Berg5727ef12007-12-19 02:03:34 +01002854
Johannes Berg80b99892011-11-18 16:23:01 +01002855 if (!vlanattr)
2856 return NULL;
2857
2858 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2859 if (!v)
2860 return ERR_PTR(-ENODEV);
2861
2862 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2863 ret = -EINVAL;
2864 goto error;
Johannes Berg5727ef12007-12-19 02:03:34 +01002865 }
Johannes Berg80b99892011-11-18 16:23:01 +01002866
2867 if (!netif_running(v)) {
2868 ret = -ENETDOWN;
2869 goto error;
2870 }
2871
2872 return v;
2873 error:
2874 dev_put(v);
2875 return ERR_PTR(ret);
Johannes Berg5727ef12007-12-19 02:03:34 +01002876}
2877
Naresh Jayaram23a9c6c2014-01-03 14:46:34 +05302878static int nl80211_parse_sta_channel_info(struct genl_info *info,
2879 struct station_parameters *params)
2880{
2881 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
2882 params->supported_channels =
2883 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
2884 params->supported_channels_len =
2885 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
2886 /*
2887 * Need to include at least one (first channel, number of
2888 * channels) tuple for each subband, and must have proper
2889 * tuples for the rest of the data as well.
2890 */
2891 if (params->supported_channels_len < 2)
2892 return -EINVAL;
2893 if (params->supported_channels_len % 2)
2894 return -EINVAL;
2895 }
2896
2897 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
2898 params->supported_oper_classes =
2899 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
2900 params->supported_oper_classes_len =
2901 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
2902 /*
2903 * The value of the Length field of the Supported Operating
2904 * Classes element is between 2 and 253.
2905 */
2906 if (params->supported_oper_classes_len < 2 ||
2907 params->supported_oper_classes_len > 253)
2908 return -EINVAL;
2909 }
2910 return 0;
2911}
2912
Jouni Malinen95fcfd02013-02-14 19:10:54 +00002913static struct nla_policy
2914nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2915 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2916 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2917};
2918
2919static int nl80211_set_station_tdls(struct genl_info *info,
2920 struct station_parameters *params)
2921{
Jouni Malinen95fcfd02013-02-14 19:10:54 +00002922 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2923 struct nlattr *nla;
2924 int err;
2925
Jouni Malinen95fcfd02013-02-14 19:10:54 +00002926 /* Dummy STA entry gets updated once the peer capabilities are known */
Jouni Malinend0a8ac32013-06-04 19:26:05 +05302927 if (info->attrs[NL80211_ATTR_PEER_AID])
2928 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
Jouni Malinen95fcfd02013-02-14 19:10:54 +00002929 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2930 params->ht_capa =
2931 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2932 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
2933 params->vht_capa =
2934 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
2935
Naresh Jayaram23a9c6c2014-01-03 14:46:34 +05302936 err = nl80211_parse_sta_channel_info(info, params);
2937 if (err)
2938 return err;
2939
Jouni Malinen95fcfd02013-02-14 19:10:54 +00002940 /* parse WME attributes if present */
2941 if (!info->attrs[NL80211_ATTR_STA_WME])
2942 return 0;
2943
2944 nla = info->attrs[NL80211_ATTR_STA_WME];
2945 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2946 nl80211_sta_wme_policy);
2947 if (err)
2948 return err;
2949
2950 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2951 params->uapsd_queues = nla_get_u8(
2952 tb[NL80211_STA_WME_UAPSD_QUEUES]);
2953 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2954 return -EINVAL;
2955
2956 if (tb[NL80211_STA_WME_MAX_SP])
2957 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2958
2959 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2960 return -EINVAL;
2961
2962 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2963
2964 return 0;
2965}
2966
Johannes Berg5727ef12007-12-19 02:03:34 +01002967static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2968{
Johannes Berg4c476992010-10-04 21:36:35 +02002969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Berg5727ef12007-12-19 02:03:34 +01002970 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02002971 struct net_device *dev = info->user_ptr[1];
Johannes Berg5727ef12007-12-19 02:03:34 +01002972 struct station_parameters params;
2973 u8 *mac_addr = NULL;
2974
2975 memset(&params, 0, sizeof(params));
2976
2977 params.listen_interval = -1;
Javier Cardona57cf8042011-05-13 10:45:43 -07002978 params.plink_state = -1;
Johannes Berg5727ef12007-12-19 02:03:34 +01002979
2980 if (info->attrs[NL80211_ATTR_STA_AID])
2981 return -EINVAL;
2982
2983 if (!info->attrs[NL80211_ATTR_MAC])
2984 return -EINVAL;
2985
2986 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2987
2988 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2989 params.supported_rates =
2990 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2991 params.supported_rates_len =
2992 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2993 }
2994
Jouni Malinen1400ced2013-02-14 19:10:13 +00002995 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
2996 params.capability =
2997 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
2998 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
2999 }
3000
3001 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3002 params.ext_capab =
3003 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3004 params.ext_capab_len =
3005 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3006 }
3007
Johannes Berg5727ef12007-12-19 02:03:34 +01003008 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3009 params.listen_interval =
3010 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3011
Jouni Malinen36aedc92008-08-25 11:58:58 +03003012 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3013 params.ht_capa =
3014 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3015
Johannes Bergbdd90d52011-12-14 12:20:27 +01003016 if (!rdev->ops->change_station)
3017 return -EOPNOTSUPP;
3018
Johannes Bergbdd3ae32012-01-02 13:30:03 +01003019 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
Johannes Berg5727ef12007-12-19 02:03:34 +01003020 return -EINVAL;
3021
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003022 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3023 params.plink_action =
3024 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3025
Javier Cardona9c3990a2011-05-03 16:57:11 -07003026 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3027 params.plink_state =
3028 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3029
Johannes Berga97f4422009-06-18 17:23:43 +02003030 switch (dev->ieee80211_ptr->iftype) {
3031 case NL80211_IFTYPE_AP:
3032 case NL80211_IFTYPE_AP_VLAN:
Johannes Berg074ac8d2010-09-16 14:58:22 +02003033 case NL80211_IFTYPE_P2P_GO:
Johannes Berga97f4422009-06-18 17:23:43 +02003034 /* disallow mesh-specific things */
3035 if (params.plink_action)
Johannes Bergbdd90d52011-12-14 12:20:27 +01003036 return -EINVAL;
3037
3038 /* TDLS can't be set, ... */
3039 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3040 return -EINVAL;
3041 /*
3042 * ... but don't bother the driver with it. This works around
3043 * a hostapd/wpa_supplicant issue -- it always includes the
3044 * TLDS_PEER flag in the mask even for AP mode.
3045 */
3046 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3047
3048 /* accept only the listed bits */
3049 if (params.sta_flags_mask &
3050 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3051 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3052 BIT(NL80211_STA_FLAG_WME) |
3053 BIT(NL80211_STA_FLAG_MFP)))
3054 return -EINVAL;
3055
Jouni Malinen1400ced2013-02-14 19:10:13 +00003056 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3057 return -EINVAL;
3058 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3059 return -EINVAL;
Jouni Malinen95fcfd02013-02-14 19:10:54 +00003060 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3061 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3062 return -EINVAL;
Jouni Malinen1400ced2013-02-14 19:10:13 +00003063
Johannes Bergbdd90d52011-12-14 12:20:27 +01003064 /* must be last in here for error handling */
3065 params.vlan = get_vlan(info, rdev);
3066 if (IS_ERR(params.vlan))
3067 return PTR_ERR(params.vlan);
Johannes Berga97f4422009-06-18 17:23:43 +02003068 break;
Johannes Berg074ac8d2010-09-16 14:58:22 +02003069 case NL80211_IFTYPE_P2P_CLIENT:
Johannes Berga97f4422009-06-18 17:23:43 +02003070 case NL80211_IFTYPE_STATION:
Johannes Bergbdd90d52011-12-14 12:20:27 +01003071 /*
3072 * Don't allow userspace to change the TDLS_PEER flag,
3073 * but silently ignore attempts to change it since we
3074 * don't have state here to verify that it doesn't try
3075 * to change the flag.
3076 */
3077 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
Jouni Malinen95fcfd02013-02-14 19:10:54 +00003078 /* Include parameters for TDLS peer (driver will check) */
3079 err = nl80211_set_station_tdls(info, &params);
3080 if (err)
3081 return err;
3082 /* disallow things sta doesn't support */
3083 if (params.plink_action)
3084 return -EINVAL;
3085 if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3086 BIT(NL80211_STA_FLAG_WME)))
3087 return -EINVAL;
3088 break;
Antonio Quartulli267335d2012-01-31 20:25:47 +01003089 case NL80211_IFTYPE_ADHOC:
3090 /* disallow things sta doesn't support */
3091 if (params.plink_action)
3092 return -EINVAL;
3093 if (params.ht_capa)
3094 return -EINVAL;
3095 if (params.listen_interval >= 0)
3096 return -EINVAL;
Jouni Malinen95fcfd02013-02-14 19:10:54 +00003097 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3098 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3099 return -EINVAL;
Johannes Bergbdd90d52011-12-14 12:20:27 +01003100 /* reject any changes other than AUTHORIZED */
3101 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3102 return -EINVAL;
Johannes Berga97f4422009-06-18 17:23:43 +02003103 break;
3104 case NL80211_IFTYPE_MESH_POINT:
3105 /* disallow things mesh doesn't support */
3106 if (params.vlan)
Johannes Bergbdd90d52011-12-14 12:20:27 +01003107 return -EINVAL;
Johannes Berga97f4422009-06-18 17:23:43 +02003108 if (params.ht_capa)
Johannes Bergbdd90d52011-12-14 12:20:27 +01003109 return -EINVAL;
Johannes Berga97f4422009-06-18 17:23:43 +02003110 if (params.listen_interval >= 0)
Johannes Bergbdd90d52011-12-14 12:20:27 +01003111 return -EINVAL;
Jouni Malinen1400ced2013-02-14 19:10:13 +00003112 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3113 return -EINVAL;
3114 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3115 return -EINVAL;
Jouni Malinen95fcfd02013-02-14 19:10:54 +00003116 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3117 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3118 return -EINVAL;
Johannes Bergbdd90d52011-12-14 12:20:27 +01003119 /*
3120 * No special handling for TDLS here -- the userspace
3121 * mesh code doesn't have this bug.
3122 */
Javier Cardonab39c48f2011-04-07 15:08:30 -07003123 if (params.sta_flags_mask &
3124 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
Thomas Pedersen84298282011-05-03 16:57:13 -07003125 BIT(NL80211_STA_FLAG_MFP) |
Javier Cardonab39c48f2011-04-07 15:08:30 -07003126 BIT(NL80211_STA_FLAG_AUTHORIZED)))
Johannes Bergbdd90d52011-12-14 12:20:27 +01003127 return -EINVAL;
Johannes Berga97f4422009-06-18 17:23:43 +02003128 break;
3129 default:
Johannes Bergbdd90d52011-12-14 12:20:27 +01003130 return -EOPNOTSUPP;
Johannes Berg034d6552009-05-27 10:35:29 +02003131 }
3132
Johannes Bergbdd90d52011-12-14 12:20:27 +01003133 /* be aware of params.vlan when changing code here */
Johannes Berg5727ef12007-12-19 02:03:34 +01003134
Johannes Berg79c97e92009-07-07 03:56:12 +02003135 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
Johannes Berg5727ef12007-12-19 02:03:34 +01003136
Johannes Berg5727ef12007-12-19 02:03:34 +01003137 if (params.vlan)
3138 dev_put(params.vlan);
Johannes Berg3b858752009-03-12 09:55:09 +01003139
Johannes Berg5727ef12007-12-19 02:03:34 +01003140 return err;
3141}
3142
3143static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3144{
Johannes Berg4c476992010-10-04 21:36:35 +02003145 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Berg5727ef12007-12-19 02:03:34 +01003146 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02003147 struct net_device *dev = info->user_ptr[1];
Johannes Berg5727ef12007-12-19 02:03:34 +01003148 struct station_parameters params;
3149 u8 *mac_addr = NULL;
3150
3151 memset(&params, 0, sizeof(params));
3152
3153 if (!info->attrs[NL80211_ATTR_MAC])
3154 return -EINVAL;
3155
Johannes Berg5727ef12007-12-19 02:03:34 +01003156 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3157 return -EINVAL;
3158
3159 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3160 return -EINVAL;
3161
Jouni Malinend0a8ac32013-06-04 19:26:05 +05303162 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3163 !info->attrs[NL80211_ATTR_PEER_AID])
Thadeu Lima de Souza Cascardo0e956c12010-02-12 12:34:50 -02003164 return -EINVAL;
3165
Johannes Berg5727ef12007-12-19 02:03:34 +01003166 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3167 params.supported_rates =
3168 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3169 params.supported_rates_len =
3170 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3171 params.listen_interval =
3172 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
Johannes Berg51b50fb2009-05-24 16:42:30 +02003173
Jouni Malinenc45f00f2013-06-17 17:51:57 +05303174 if (info->attrs[NL80211_ATTR_PEER_AID])
Jouni Malinend0a8ac32013-06-04 19:26:05 +05303175 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
Jouni Malinenc45f00f2013-06-17 17:51:57 +05303176 else
3177 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
Thadeu Lima de Souza Cascardo0e956c12010-02-12 12:34:50 -02003178 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3179 return -EINVAL;
Johannes Berg51b50fb2009-05-24 16:42:30 +02003180
Jouni Malinen1400ced2013-02-14 19:10:13 +00003181 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3182 params.capability =
3183 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3184 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3185 }
3186
3187 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3188 params.ext_capab =
3189 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3190 params.ext_capab_len =
3191 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3192 }
3193
Jouni Malinen36aedc92008-08-25 11:58:58 +03003194 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3195 params.ht_capa =
3196 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
Johannes Berg5727ef12007-12-19 02:03:34 +01003197
Mahesh Palivelacf7f78d2012-10-11 08:04:52 +00003198 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3199 params.vht_capa =
3200 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3201
Javier Cardona96b78df2011-04-07 15:08:33 -07003202 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3203 params.plink_action =
3204 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3205
Naresh Jayaram23a9c6c2014-01-03 14:46:34 +05303206 err = nl80211_parse_sta_channel_info(info, &params);
3207 if (err)
3208 return err;
3209
Johannes Bergbdd90d52011-12-14 12:20:27 +01003210 if (!rdev->ops->add_station)
3211 return -EOPNOTSUPP;
3212
Johannes Bergbdd3ae32012-01-02 13:30:03 +01003213 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
Johannes Berg5727ef12007-12-19 02:03:34 +01003214 return -EINVAL;
3215
Johannes Bergde3a3d72015-03-12 08:53:27 +02003216 /* HT requires QoS, but if we don't have that just ignore HT/VHT
3217 * as userspace might just pass through the capabilities from the IEs
3218 * directly, rather than enforcing this restriction and returning an
3219 * error in this case.
3220 */
3221 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
3222 params.ht_capa = NULL;
3223
Johannes Bergbdd90d52011-12-14 12:20:27 +01003224 switch (dev->ieee80211_ptr->iftype) {
3225 case NL80211_IFTYPE_AP:
3226 case NL80211_IFTYPE_AP_VLAN:
3227 case NL80211_IFTYPE_P2P_GO:
3228 /* parse WME attributes if sta is WME capable */
3229 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3230 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3231 info->attrs[NL80211_ATTR_STA_WME]) {
3232 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3233 struct nlattr *nla;
Eliad Pellerc75786c2011-08-23 14:37:46 +03003234
Johannes Bergbdd90d52011-12-14 12:20:27 +01003235 nla = info->attrs[NL80211_ATTR_STA_WME];
3236 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3237 nl80211_sta_wme_policy);
3238 if (err)
3239 return err;
Eliad Pellerc75786c2011-08-23 14:37:46 +03003240
Johannes Bergbdd90d52011-12-14 12:20:27 +01003241 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3242 params.uapsd_queues =
3243 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3244 if (params.uapsd_queues &
3245 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3246 return -EINVAL;
3247
3248 if (tb[NL80211_STA_WME_MAX_SP])
3249 params.max_sp =
3250 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3251
3252 if (params.max_sp &
3253 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3254 return -EINVAL;
3255
3256 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3257 }
3258 /* TDLS peers cannot be added */
Jouni Malinenc45f00f2013-06-17 17:51:57 +05303259 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
3260 info->attrs[NL80211_ATTR_PEER_AID])
Johannes Berg4319e192011-09-07 11:50:48 +02003261 return -EINVAL;
Johannes Bergbdd90d52011-12-14 12:20:27 +01003262 /* but don't bother the driver with it */
3263 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
Eliad Pellerc75786c2011-08-23 14:37:46 +03003264
Johannes Bergbdd90d52011-12-14 12:20:27 +01003265 /* must be last in here for error handling */
3266 params.vlan = get_vlan(info, rdev);
3267 if (IS_ERR(params.vlan))
3268 return PTR_ERR(params.vlan);
3269 break;
3270 case NL80211_IFTYPE_MESH_POINT:
3271 /* TDLS peers cannot be added */
Jouni Malinenc45f00f2013-06-17 17:51:57 +05303272 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
3273 info->attrs[NL80211_ATTR_PEER_AID])
Johannes Berg4319e192011-09-07 11:50:48 +02003274 return -EINVAL;
Johannes Bergbdd90d52011-12-14 12:20:27 +01003275 break;
3276 case NL80211_IFTYPE_STATION:
Johannes Berg43e652a2013-03-04 08:29:46 +00003277 case NL80211_IFTYPE_P2P_CLIENT:
Johannes Bergbdd90d52011-12-14 12:20:27 +01003278 /* Only TDLS peers can be added */
3279 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3280 return -EINVAL;
3281 /* Can only add if TDLS ... */
3282 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3283 return -EOPNOTSUPP;
3284 /* ... with external setup is supported */
3285 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3286 return -EOPNOTSUPP;
3287 break;
3288 default:
3289 return -EOPNOTSUPP;
Eliad Pellerc75786c2011-08-23 14:37:46 +03003290 }
3291
Johannes Bergbdd90d52011-12-14 12:20:27 +01003292 /* be aware of params.vlan when changing code here */
Johannes Berg5727ef12007-12-19 02:03:34 +01003293
Johannes Berg79c97e92009-07-07 03:56:12 +02003294 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
Johannes Berg5727ef12007-12-19 02:03:34 +01003295
Johannes Berg5727ef12007-12-19 02:03:34 +01003296 if (params.vlan)
3297 dev_put(params.vlan);
Johannes Berg5727ef12007-12-19 02:03:34 +01003298 return err;
3299}
3300
3301static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3302{
Johannes Berg4c476992010-10-04 21:36:35 +02003303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3304 struct net_device *dev = info->user_ptr[1];
Johannes Berg5727ef12007-12-19 02:03:34 +01003305 u8 *mac_addr = NULL;
3306
3307 if (info->attrs[NL80211_ATTR_MAC])
3308 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3309
Johannes Berge80cf852009-05-11 14:43:13 +02003310 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
Marco Porschd5d9de02010-03-30 10:00:16 +02003311 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
Johannes Berg074ac8d2010-09-16 14:58:22 +02003312 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
Johannes Berg4c476992010-10-04 21:36:35 +02003313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3314 return -EINVAL;
Johannes Berge80cf852009-05-11 14:43:13 +02003315
Johannes Berg4c476992010-10-04 21:36:35 +02003316 if (!rdev->ops->del_station)
3317 return -EOPNOTSUPP;
Johannes Berg5727ef12007-12-19 02:03:34 +01003318
Johannes Berg4c476992010-10-04 21:36:35 +02003319 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
Johannes Berg5727ef12007-12-19 02:03:34 +01003320}
3321
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003322static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3323 int flags, struct net_device *dev,
3324 u8 *dst, u8 *next_hop,
3325 struct mpath_info *pinfo)
3326{
3327 void *hdr;
3328 struct nlattr *pinfoattr;
3329
3330 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3331 if (!hdr)
3332 return -1;
3333
3334 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3335 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
3336 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
3337
Johannes Bergf5ea9122009-08-07 16:17:38 +02003338 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
3339
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003340 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3341 if (!pinfoattr)
3342 goto nla_put_failure;
3343 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
3344 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3345 pinfo->frame_qlen);
Rui Paulod19b3bf2009-11-09 23:46:55 +00003346 if (pinfo->filled & MPATH_INFO_SN)
3347 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
3348 pinfo->sn);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003349 if (pinfo->filled & MPATH_INFO_METRIC)
3350 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
3351 pinfo->metric);
3352 if (pinfo->filled & MPATH_INFO_EXPTIME)
3353 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
3354 pinfo->exptime);
3355 if (pinfo->filled & MPATH_INFO_FLAGS)
3356 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
3357 pinfo->flags);
3358 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
3359 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3360 pinfo->discovery_timeout);
3361 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
3362 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3363 pinfo->discovery_retries);
3364
3365 nla_nest_end(msg, pinfoattr);
3366
3367 return genlmsg_end(msg, hdr);
3368
3369 nla_put_failure:
Thomas Grafbc3ed282008-06-03 16:36:54 -07003370 genlmsg_cancel(msg, hdr);
3371 return -EMSGSIZE;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003372}
3373
3374static int nl80211_dump_mpath(struct sk_buff *skb,
Johannes Bergbba95fe2008-07-29 13:22:51 +02003375 struct netlink_callback *cb)
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003376{
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003377 struct mpath_info pinfo;
3378 struct cfg80211_registered_device *dev;
Johannes Bergbba95fe2008-07-29 13:22:51 +02003379 struct net_device *netdev;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003380 u8 dst[ETH_ALEN];
3381 u8 next_hop[ETH_ALEN];
Johannes Bergbba95fe2008-07-29 13:22:51 +02003382 int path_idx = cb->args[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003383 int err;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003384
Johannes Berg67748892010-10-04 21:14:06 +02003385 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3386 if (err)
3387 return err;
Johannes Bergbba95fe2008-07-29 13:22:51 +02003388
3389 if (!dev->ops->dump_mpath) {
Jouni Malineneec60b02009-03-20 21:21:19 +02003390 err = -EOPNOTSUPP;
Johannes Bergbba95fe2008-07-29 13:22:51 +02003391 goto out_err;
3392 }
3393
Jouni Malineneec60b02009-03-20 21:21:19 +02003394 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3395 err = -EOPNOTSUPP;
Roel Kluin0448b5f2009-08-22 21:15:49 +02003396 goto out_err;
Jouni Malineneec60b02009-03-20 21:21:19 +02003397 }
3398
Johannes Bergbba95fe2008-07-29 13:22:51 +02003399 while (1) {
3400 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3401 dst, next_hop, &pinfo);
3402 if (err == -ENOENT)
3403 break;
3404 if (err)
Johannes Berg3b858752009-03-12 09:55:09 +01003405 goto out_err;
Johannes Bergbba95fe2008-07-29 13:22:51 +02003406
3407 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3408 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3409 netdev, dst, next_hop,
3410 &pinfo) < 0)
3411 goto out;
3412
3413 path_idx++;
3414 }
3415
3416
3417 out:
3418 cb->args[1] = path_idx;
3419 err = skb->len;
Johannes Bergbba95fe2008-07-29 13:22:51 +02003420 out_err:
Johannes Berg67748892010-10-04 21:14:06 +02003421 nl80211_finish_netdev_dump(dev);
Johannes Bergbba95fe2008-07-29 13:22:51 +02003422 return err;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003423}
3424
3425static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3426{
Johannes Berg4c476992010-10-04 21:36:35 +02003427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003428 int err;
Johannes Berg4c476992010-10-04 21:36:35 +02003429 struct net_device *dev = info->user_ptr[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003430 struct mpath_info pinfo;
3431 struct sk_buff *msg;
3432 u8 *dst = NULL;
3433 u8 next_hop[ETH_ALEN];
3434
3435 memset(&pinfo, 0, sizeof(pinfo));
3436
3437 if (!info->attrs[NL80211_ATTR_MAC])
3438 return -EINVAL;
3439
3440 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3441
Johannes Berg4c476992010-10-04 21:36:35 +02003442 if (!rdev->ops->get_mpath)
3443 return -EOPNOTSUPP;
Johannes Berg3b858752009-03-12 09:55:09 +01003444
Johannes Berg4c476992010-10-04 21:36:35 +02003445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3446 return -EOPNOTSUPP;
Jouni Malineneec60b02009-03-20 21:21:19 +02003447
Johannes Berg79c97e92009-07-07 03:56:12 +02003448 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003449 if (err)
Johannes Berg4c476992010-10-04 21:36:35 +02003450 return err;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003451
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07003452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003453 if (!msg)
Johannes Berg4c476992010-10-04 21:36:35 +02003454 return -ENOMEM;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003455
3456 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
Johannes Berg4c476992010-10-04 21:36:35 +02003457 dev, dst, next_hop, &pinfo) < 0) {
3458 nlmsg_free(msg);
3459 return -ENOBUFS;
3460 }
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003461
Johannes Berg4c476992010-10-04 21:36:35 +02003462 return genlmsg_reply(msg, info);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003463}
3464
3465static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3466{
Johannes Berg4c476992010-10-04 21:36:35 +02003467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3468 struct net_device *dev = info->user_ptr[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003469 u8 *dst = NULL;
3470 u8 *next_hop = NULL;
3471
3472 if (!info->attrs[NL80211_ATTR_MAC])
3473 return -EINVAL;
3474
3475 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3476 return -EINVAL;
3477
3478 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3479 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3480
Johannes Berg4c476992010-10-04 21:36:35 +02003481 if (!rdev->ops->change_mpath)
3482 return -EOPNOTSUPP;
Johannes Berg3b858752009-03-12 09:55:09 +01003483
Johannes Berg4c476992010-10-04 21:36:35 +02003484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3485 return -EOPNOTSUPP;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003486
Johannes Berg4c476992010-10-04 21:36:35 +02003487 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003488}
Johannes Berg4c476992010-10-04 21:36:35 +02003489
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003490static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3491{
Johannes Berg4c476992010-10-04 21:36:35 +02003492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3493 struct net_device *dev = info->user_ptr[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003494 u8 *dst = NULL;
3495 u8 *next_hop = NULL;
3496
3497 if (!info->attrs[NL80211_ATTR_MAC])
3498 return -EINVAL;
3499
3500 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3501 return -EINVAL;
3502
3503 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3504 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3505
Johannes Berg4c476992010-10-04 21:36:35 +02003506 if (!rdev->ops->add_mpath)
3507 return -EOPNOTSUPP;
Johannes Berg3b858752009-03-12 09:55:09 +01003508
Johannes Berg4c476992010-10-04 21:36:35 +02003509 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3510 return -EOPNOTSUPP;
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003511
Johannes Berg4c476992010-10-04 21:36:35 +02003512 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003513}
3514
3515static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3516{
Johannes Berg4c476992010-10-04 21:36:35 +02003517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3518 struct net_device *dev = info->user_ptr[1];
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003519 u8 *dst = NULL;
3520
3521 if (info->attrs[NL80211_ATTR_MAC])
3522 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3523
Johannes Berg4c476992010-10-04 21:36:35 +02003524 if (!rdev->ops->del_mpath)
3525 return -EOPNOTSUPP;
Johannes Berg3b858752009-03-12 09:55:09 +01003526
Johannes Berg4c476992010-10-04 21:36:35 +02003527 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01003528}
3529
Jouni Malinen9f1ba902008-08-07 20:07:01 +03003530static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3531{
Johannes Berg4c476992010-10-04 21:36:35 +02003532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3533 struct net_device *dev = info->user_ptr[1];
Jouni Malinen9f1ba902008-08-07 20:07:01 +03003534 struct bss_parameters params;
3535
3536 memset(&params, 0, sizeof(params));
3537 /* default to not changing parameters */
3538 params.use_cts_prot = -1;
3539 params.use_short_preamble = -1;
3540 params.use_short_slot_time = -1;
Felix Fietkaufd8aaaf2010-04-27 01:23:35 +02003541 params.ap_isolate = -1;
Helmut Schaa50b12f52010-11-19 12:40:25 +01003542 params.ht_opmode = -1;
Jouni Malinen9f1ba902008-08-07 20:07:01 +03003543
3544 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3545 params.use_cts_prot =
3546 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3547 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3548 params.use_short_preamble =
3549 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3550 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3551 params.use_short_slot_time =
3552 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
Jouni Malinen90c97a02008-10-30 16:59:22 +02003553 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3554 params.basic_rates =
3555 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3556 params.basic_rates_len =
3557 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3558 }
Felix Fietkaufd8aaaf2010-04-27 01:23:35 +02003559 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3560 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
Helmut Schaa50b12f52010-11-19 12:40:25 +01003561 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3562 params.ht_opmode =
3563 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
Jouni Malinen9f1ba902008-08-07 20:07:01 +03003564
Johannes Berg4c476992010-10-04 21:36:35 +02003565 if (!rdev->ops->change_bss)
3566 return -EOPNOTSUPP;
Jouni Malinen9f1ba902008-08-07 20:07:01 +03003567
Johannes Berg074ac8d2010-09-16 14:58:22 +02003568 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
Johannes Berg4c476992010-10-04 21:36:35 +02003569 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3570 return -EOPNOTSUPP;
Jouni Malineneec60b02009-03-20 21:21:19 +02003571
Johannes Berg4c476992010-10-04 21:36:35 +02003572 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
Jouni Malinen9f1ba902008-08-07 20:07:01 +03003573}
3574
Alexey Dobriyanb54452b2010-02-18 08:14:31 +00003575static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07003576 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3577 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3578 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3579 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3580 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3581 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3582};
3583
3584static int parse_reg_rule(struct nlattr *tb[],
3585 struct ieee80211_reg_rule *reg_rule)
3586{
3587 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3588 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3589
3590 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3591 return -EINVAL;
3592 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3593 return -EINVAL;
3594 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3595 return -EINVAL;
3596 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3597 return -EINVAL;
3598 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3599 return -EINVAL;
3600
3601 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3602
3603 freq_range->start_freq_khz =
3604 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3605 freq_range->end_freq_khz =
3606 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3607 freq_range->max_bandwidth_khz =
3608 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3609
3610 power_rule->max_eirp =
3611 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3612
3613 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3614 power_rule->max_antenna_gain =
3615 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3616
3617 return 0;
3618}
3619
3620static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3621{
3622 int r;
3623 char *data = NULL;
3624
Luis R. Rodriguez80778f12009-02-21 00:04:22 -05003625 /*
3626 * You should only get this when cfg80211 hasn't yet initialized
3627 * completely when built-in to the kernel right between the time
3628 * window between nl80211_init() and regulatory_init(), if that is
3629 * even possible.
3630 */
3631 mutex_lock(&cfg80211_mutex);
3632 if (unlikely(!cfg80211_regdomain)) {
Luis R. Rodriguezfe33eb32009-02-21 00:04:30 -05003633 mutex_unlock(&cfg80211_mutex);
3634 return -EINPROGRESS;
Luis R. Rodriguez80778f12009-02-21 00:04:22 -05003635 }
Luis R. Rodriguezfe33eb32009-02-21 00:04:30 -05003636 mutex_unlock(&cfg80211_mutex);
Luis R. Rodriguez80778f12009-02-21 00:04:22 -05003637
Luis R. Rodriguezfe33eb32009-02-21 00:04:30 -05003638 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3639 return -EINVAL;
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07003640
3641 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3642
Luis R. Rodriguezfe33eb32009-02-21 00:04:30 -05003643 r = regulatory_hint_user(data);
3644
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07003645 return r;
3646}
3647
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003648static int nl80211_get_mesh_config(struct sk_buff *skb,
Johannes Berg29cbe682010-12-03 09:20:44 +01003649 struct genl_info *info)
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003650{
Johannes Berg4c476992010-10-04 21:36:35 +02003651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Berg4c476992010-10-04 21:36:35 +02003652 struct net_device *dev = info->user_ptr[1];
Johannes Berg29cbe682010-12-03 09:20:44 +01003653 struct wireless_dev *wdev = dev->ieee80211_ptr;
3654 struct mesh_config cur_params;
3655 int err = 0;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003656 void *hdr;
3657 struct nlattr *pinfoattr;
3658 struct sk_buff *msg;
3659
Johannes Berg29cbe682010-12-03 09:20:44 +01003660 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3661 return -EOPNOTSUPP;
3662
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003663 if (!rdev->ops->get_mesh_config)
Johannes Berg4c476992010-10-04 21:36:35 +02003664 return -EOPNOTSUPP;
Jouni Malinenf3f92582009-03-20 17:57:36 +02003665
Johannes Berg29cbe682010-12-03 09:20:44 +01003666 wdev_lock(wdev);
3667 /* If not connected, get default parameters */
3668 if (!wdev->mesh_id_len)
3669 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3670 else
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003671 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
Johannes Berg29cbe682010-12-03 09:20:44 +01003672 &cur_params);
3673 wdev_unlock(wdev);
3674
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003675 if (err)
Johannes Berg4c476992010-10-04 21:36:35 +02003676 return err;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003677
3678 /* Draw up a netlink message to send back */
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07003679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg4c476992010-10-04 21:36:35 +02003680 if (!msg)
3681 return -ENOMEM;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003682 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003683 NL80211_CMD_GET_MESH_CONFIG);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003684 if (!hdr)
Julia Lawallefe1cf02011-01-28 15:17:11 +01003685 goto out;
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003686 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003687 if (!pinfoattr)
3688 goto nla_put_failure;
3689 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3690 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3691 cur_params.dot11MeshRetryTimeout);
3692 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3693 cur_params.dot11MeshConfirmTimeout);
3694 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3695 cur_params.dot11MeshHoldingTimeout);
3696 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3697 cur_params.dot11MeshMaxPeerLinks);
3698 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3699 cur_params.dot11MeshMaxRetries);
3700 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3701 cur_params.dot11MeshTTL);
Javier Cardona45904f22010-12-03 09:20:40 +01003702 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3703 cur_params.element_ttl);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003704 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3705 cur_params.auto_open_plinks);
3706 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3707 cur_params.dot11MeshHWMPmaxPREQretries);
3708 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3709 cur_params.path_refresh_time);
3710 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3711 cur_params.min_discovery_timeout);
3712 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3713 cur_params.dot11MeshHWMPactivePathTimeout);
3714 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3715 cur_params.dot11MeshHWMPpreqMinInterval);
Thomas Pedersendca7e942011-11-24 17:15:24 -08003716 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3717 cur_params.dot11MeshHWMPperrMinInterval);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003718 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3719 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
Rui Paulo63c57232009-11-09 23:46:57 +00003720 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3721 cur_params.dot11MeshHWMPRootMode);
Javier Cardona0507e152011-08-09 16:45:10 -07003722 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3723 cur_params.dot11MeshHWMPRannInterval);
Javier Cardona16dd7262011-08-09 16:45:11 -07003724 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3725 cur_params.dot11MeshGateAnnouncementProtocol);
Chun-Yeow Yeoh94f90652012-01-21 01:02:16 +08003726 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3727 cur_params.dot11MeshForwarding);
Ashok Nagarajan55335132012-02-28 17:04:08 -08003728 NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3729 cur_params.rssi_threshold);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003730 nla_nest_end(msg, pinfoattr);
3731 genlmsg_end(msg, hdr);
Johannes Berg4c476992010-10-04 21:36:35 +02003732 return genlmsg_reply(msg, info);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003733
Johannes Berg3b858752009-03-12 09:55:09 +01003734 nla_put_failure:
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003735 genlmsg_cancel(msg, hdr);
Julia Lawallefe1cf02011-01-28 15:17:11 +01003736 out:
Yuri Ershovd080e272010-06-29 15:08:07 +04003737 nlmsg_free(msg);
Johannes Berg4c476992010-10-04 21:36:35 +02003738 return -ENOBUFS;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003739}
3740
Alexey Dobriyanb54452b2010-02-18 08:14:31 +00003741static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003742 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3743 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3744 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3745 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3746 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3747 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
Javier Cardona45904f22010-12-03 09:20:40 +01003748 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003749 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3750
3751 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3752 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3753 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3754 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3755 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
Thomas Pedersendca7e942011-11-24 17:15:24 -08003756 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003757 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
Javier Cardona699403d2011-08-09 16:45:09 -07003758 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
Javier Cardona0507e152011-08-09 16:45:10 -07003759 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
Javier Cardona16dd7262011-08-09 16:45:11 -07003760 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
Chun-Yeow Yeoh94f90652012-01-21 01:02:16 +08003761 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
Ashok Nagarajan55335132012-02-28 17:04:08 -08003762 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003763};
3764
Javier Cardonac80d5452010-12-16 17:37:49 -08003765static const struct nla_policy
3766 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3767 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3768 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
Javier Cardona15d5dda2011-04-07 15:08:28 -07003769 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
Javier Cardona581a8b02011-04-07 15:08:27 -07003770 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
Javier Cardonac80d5452010-12-16 17:37:49 -08003771 .len = IEEE80211_MAX_DATA_LEN },
Javier Cardonab130e5c2011-05-03 16:57:07 -07003772 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
Javier Cardonac80d5452010-12-16 17:37:49 -08003773};
3774
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003775static int nl80211_parse_mesh_config(struct genl_info *info,
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003776 struct mesh_config *cfg,
3777 u32 *mask_out)
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003778{
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003779 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003780 u32 mask = 0;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003781
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003782#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3783do {\
3784 if (table[attr_num]) {\
3785 cfg->param = nla_fn(table[attr_num]); \
3786 mask |= (1 << (attr_num - 1)); \
3787 } \
3788} while (0);\
3789
3790
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003791 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003792 return -EINVAL;
3793 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003794 info->attrs[NL80211_ATTR_MESH_CONFIG],
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003795 nl80211_meshconf_params_policy))
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003796 return -EINVAL;
3797
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003798 /* This makes sure that there aren't more than 32 mesh config
3799 * parameters (otherwise our bitfield scheme would not work.) */
3800 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3801
3802 /* Fill in the params struct */
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003803 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3804 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3806 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3807 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3808 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3809 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3810 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3811 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3812 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3814 mask, NL80211_MESHCONF_TTL, nla_get_u8);
Javier Cardona45904f22010-12-03 09:20:40 +01003815 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3816 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003817 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3818 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3819 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3820 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3821 nla_get_u8);
3822 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3823 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3824 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3825 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3826 nla_get_u16);
3827 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3828 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3829 nla_get_u32);
3830 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3831 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3832 nla_get_u16);
Thomas Pedersendca7e942011-11-24 17:15:24 -08003833 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3834 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3835 nla_get_u16);
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003836 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3837 dot11MeshHWMPnetDiameterTraversalTime,
3838 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3839 nla_get_u16);
Rui Paulo63c57232009-11-09 23:46:57 +00003840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3841 dot11MeshHWMPRootMode, mask,
3842 NL80211_MESHCONF_HWMP_ROOTMODE,
3843 nla_get_u8);
Javier Cardona0507e152011-08-09 16:45:10 -07003844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3845 dot11MeshHWMPRannInterval, mask,
3846 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3847 nla_get_u16);
Javier Cardona16dd7262011-08-09 16:45:11 -07003848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3849 dot11MeshGateAnnouncementProtocol, mask,
3850 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3851 nla_get_u8);
Chun-Yeow Yeoh94f90652012-01-21 01:02:16 +08003852 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3853 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
Ashok Nagarajan55335132012-02-28 17:04:08 -08003854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3855 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003856 if (mask_out)
3857 *mask_out = mask;
Javier Cardonac80d5452010-12-16 17:37:49 -08003858
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003859 return 0;
3860
3861#undef FILL_IN_MESH_PARAM_IF_SET
3862}
3863
Javier Cardonac80d5452010-12-16 17:37:49 -08003864static int nl80211_parse_mesh_setup(struct genl_info *info,
3865 struct mesh_setup *setup)
3866{
3867 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3868
3869 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3870 return -EINVAL;
3871 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3872 info->attrs[NL80211_ATTR_MESH_SETUP],
3873 nl80211_mesh_setup_params_policy))
3874 return -EINVAL;
3875
3876 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3877 setup->path_sel_proto =
3878 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3879 IEEE80211_PATH_PROTOCOL_VENDOR :
3880 IEEE80211_PATH_PROTOCOL_HWMP;
3881
3882 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3883 setup->path_metric =
3884 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3885 IEEE80211_PATH_METRIC_VENDOR :
3886 IEEE80211_PATH_METRIC_AIRTIME;
3887
Javier Cardona581a8b02011-04-07 15:08:27 -07003888
3889 if (tb[NL80211_MESH_SETUP_IE]) {
Javier Cardonac80d5452010-12-16 17:37:49 -08003890 struct nlattr *ieattr =
Javier Cardona581a8b02011-04-07 15:08:27 -07003891 tb[NL80211_MESH_SETUP_IE];
Javier Cardonac80d5452010-12-16 17:37:49 -08003892 if (!is_valid_ie_attr(ieattr))
3893 return -EINVAL;
Javier Cardona581a8b02011-04-07 15:08:27 -07003894 setup->ie = nla_data(ieattr);
3895 setup->ie_len = nla_len(ieattr);
Javier Cardonac80d5452010-12-16 17:37:49 -08003896 }
Javier Cardonab130e5c2011-05-03 16:57:07 -07003897 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3898 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
Javier Cardonac80d5452010-12-16 17:37:49 -08003899
3900 return 0;
3901}
3902
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003903static int nl80211_update_mesh_config(struct sk_buff *skb,
Johannes Berg29cbe682010-12-03 09:20:44 +01003904 struct genl_info *info)
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003905{
3906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3907 struct net_device *dev = info->user_ptr[1];
Johannes Berg29cbe682010-12-03 09:20:44 +01003908 struct wireless_dev *wdev = dev->ieee80211_ptr;
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003909 struct mesh_config cfg;
3910 u32 mask;
3911 int err;
3912
Johannes Berg29cbe682010-12-03 09:20:44 +01003913 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3914 return -EOPNOTSUPP;
3915
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003916 if (!rdev->ops->update_mesh_config)
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003917 return -EOPNOTSUPP;
3918
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003919 err = nl80211_parse_mesh_config(info, &cfg, &mask);
Johannes Bergbd90fdc2010-12-03 09:20:43 +01003920 if (err)
3921 return err;
3922
Johannes Berg29cbe682010-12-03 09:20:44 +01003923 wdev_lock(wdev);
3924 if (!wdev->mesh_id_len)
3925 err = -ENOLINK;
3926
3927 if (!err)
Javier Cardona24bdd9f2010-12-16 17:37:48 -08003928 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
Johannes Berg29cbe682010-12-03 09:20:44 +01003929 mask, &cfg);
3930
3931 wdev_unlock(wdev);
3932
3933 return err;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07003934}
3935
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08003936static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3937{
3938 struct sk_buff *msg;
3939 void *hdr = NULL;
3940 struct nlattr *nl_reg_rules;
3941 unsigned int i;
3942 int err = -EINVAL;
3943
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05003944 mutex_lock(&cfg80211_mutex);
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08003945
3946 if (!cfg80211_regdomain)
3947 goto out;
3948
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07003949 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08003950 if (!msg) {
3951 err = -ENOBUFS;
3952 goto out;
3953 }
3954
3955 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3956 NL80211_CMD_GET_REG);
3957 if (!hdr)
Julia Lawallefe1cf02011-01-28 15:17:11 +01003958 goto put_failure;
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08003959
3960 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3961 cfg80211_regdomain->alpha2);
Luis R. Rodriguez8b60b072011-10-11 10:59:02 -07003962 if (cfg80211_regdomain->dfs_region)
3963 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3964 cfg80211_regdomain->dfs_region);
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08003965
3966 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3967 if (!nl_reg_rules)
3968 goto nla_put_failure;
3969
3970 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3971 struct nlattr *nl_reg_rule;
3972 const struct ieee80211_reg_rule *reg_rule;
3973 const struct ieee80211_freq_range *freq_range;
3974 const struct ieee80211_power_rule *power_rule;
3975
3976 reg_rule = &cfg80211_regdomain->reg_rules[i];
3977 freq_range = &reg_rule->freq_range;
3978 power_rule = &reg_rule->power_rule;
3979
3980 nl_reg_rule = nla_nest_start(msg, i);
3981 if (!nl_reg_rule)
3982 goto nla_put_failure;
3983
3984 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3985 reg_rule->flags);
3986 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3987 freq_range->start_freq_khz);
3988 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3989 freq_range->end_freq_khz);
3990 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3991 freq_range->max_bandwidth_khz);
3992 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3993 power_rule->max_antenna_gain);
3994 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3995 power_rule->max_eirp);
3996
3997 nla_nest_end(msg, nl_reg_rule);
3998 }
3999
4000 nla_nest_end(msg, nl_reg_rules);
4001
4002 genlmsg_end(msg, hdr);
Johannes Berg134e6372009-07-10 09:51:34 +00004003 err = genlmsg_reply(msg, info);
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08004004 goto out;
4005
4006nla_put_failure:
4007 genlmsg_cancel(msg, hdr);
Julia Lawallefe1cf02011-01-28 15:17:11 +01004008put_failure:
Yuri Ershovd080e272010-06-29 15:08:07 +04004009 nlmsg_free(msg);
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08004010 err = -EMSGSIZE;
4011out:
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05004012 mutex_unlock(&cfg80211_mutex);
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08004013 return err;
4014}
4015
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004016static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4017{
4018 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4019 struct nlattr *nl_reg_rule;
4020 char *alpha2 = NULL;
4021 int rem_reg_rules = 0, r = 0;
4022 u32 num_rules = 0, rule_idx = 0, size_of_regd;
Luis R. Rodriguez8b60b072011-10-11 10:59:02 -07004023 u8 dfs_region = 0;
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004024 struct ieee80211_regdomain *rd = NULL;
4025
4026 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4027 return -EINVAL;
4028
4029 if (!info->attrs[NL80211_ATTR_REG_RULES])
4030 return -EINVAL;
4031
4032 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4033
Luis R. Rodriguez8b60b072011-10-11 10:59:02 -07004034 if (info->attrs[NL80211_ATTR_DFS_REGION])
4035 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4036
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004037 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4038 rem_reg_rules) {
4039 num_rules++;
4040 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
Luis R. Rodriguez4776c6e2009-05-13 17:04:39 -04004041 return -EINVAL;
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004042 }
4043
Luis R. Rodriguez61405e92009-05-13 17:04:41 -04004044 mutex_lock(&cfg80211_mutex);
4045
Luis R. Rodriguezd0e18f82009-05-13 17:04:40 -04004046 if (!reg_is_valid_request(alpha2)) {
4047 r = -EINVAL;
4048 goto bad_reg;
4049 }
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004050
4051 size_of_regd = sizeof(struct ieee80211_regdomain) +
4052 (num_rules * sizeof(struct ieee80211_reg_rule));
4053
4054 rd = kzalloc(size_of_regd, GFP_KERNEL);
Luis R. Rodriguezd0e18f82009-05-13 17:04:40 -04004055 if (!rd) {
4056 r = -ENOMEM;
4057 goto bad_reg;
4058 }
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004059
4060 rd->n_reg_rules = num_rules;
4061 rd->alpha2[0] = alpha2[0];
4062 rd->alpha2[1] = alpha2[1];
4063
Luis R. Rodriguez8b60b072011-10-11 10:59:02 -07004064 /*
4065 * Disable DFS master mode if the DFS region was
4066 * not supported or known on this kernel.
4067 */
4068 if (reg_supported_dfs_region(dfs_region))
4069 rd->dfs_region = dfs_region;
4070
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004071 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4072 rem_reg_rules) {
4073 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4074 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4075 reg_rule_policy);
4076 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4077 if (r)
4078 goto bad_reg;
4079
4080 rule_idx++;
4081
Luis R. Rodriguezd0e18f82009-05-13 17:04:40 -04004082 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4083 r = -EINVAL;
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004084 goto bad_reg;
Luis R. Rodriguezd0e18f82009-05-13 17:04:40 -04004085 }
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004086 }
4087
4088 BUG_ON(rule_idx != num_rules);
4089
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004090 r = set_regdom(rd);
Luis R. Rodriguez61405e92009-05-13 17:04:41 -04004091
Luis R. Rodrigueza1794392009-02-21 00:04:21 -05004092 mutex_unlock(&cfg80211_mutex);
Luis R. Rodriguezd0e18f82009-05-13 17:04:40 -04004093
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004094 return r;
4095
Johannes Bergd2372b32008-10-24 20:32:20 +02004096 bad_reg:
Luis R. Rodriguez61405e92009-05-13 17:04:41 -04004097 mutex_unlock(&cfg80211_mutex);
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004098 kfree(rd);
Luis R. Rodriguezd0e18f82009-05-13 17:04:40 -04004099 return r;
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07004100}
4101
Johannes Berg83f5e2c2009-06-17 17:41:49 +02004102static int validate_scan_freqs(struct nlattr *freqs)
4103{
4104 struct nlattr *attr1, *attr2;
4105 int n_channels = 0, tmp1, tmp2;
4106
4107 nla_for_each_nested(attr1, freqs, tmp1) {
4108 n_channels++;
4109 /*
4110 * Some hardware has a limited channel list for
4111 * scanning, and it is pretty much nonsensical
4112 * to scan for a channel twice, so disallow that
4113 * and don't require drivers to check that the
4114 * channel list they get isn't longer than what
4115 * they can scan, as long as they can scan all
4116 * the channels they registered at once.
4117 */
4118 nla_for_each_nested(attr2, freqs, tmp2)
4119 if (attr1 != attr2 &&
4120 nla_get_u32(attr1) == nla_get_u32(attr2))
4121 return 0;
4122 }
4123
4124 return n_channels;
4125}
4126
Johannes Berg2a519312009-02-10 21:25:55 +01004127static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4128{
Johannes Berg4c476992010-10-04 21:36:35 +02004129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4130 struct net_device *dev = info->user_ptr[1];
Johannes Berg2a519312009-02-10 21:25:55 +01004131 struct cfg80211_scan_request *request;
Johannes Berg2a519312009-02-10 21:25:55 +01004132 struct nlattr *attr;
4133 struct wiphy *wiphy;
Johannes Berg83f5e2c2009-06-17 17:41:49 +02004134 int err, tmp, n_ssids = 0, n_channels, i;
Jouni Malinen70692ad2009-02-16 19:39:13 +02004135 size_t ie_len;
Johannes Berg2a519312009-02-10 21:25:55 +01004136
Johannes Bergf4a11bb2009-03-27 12:40:28 +01004137 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4138 return -EINVAL;
4139
Johannes Berg79c97e92009-07-07 03:56:12 +02004140 wiphy = &rdev->wiphy;
Johannes Berg2a519312009-02-10 21:25:55 +01004141
Johannes Berg4c476992010-10-04 21:36:35 +02004142 if (!rdev->ops->scan)
4143 return -EOPNOTSUPP;
Johannes Berg2a519312009-02-10 21:25:55 +01004144
Johannes Berg4c476992010-10-04 21:36:35 +02004145 if (rdev->scan_req)
4146 return -EBUSY;
Johannes Berg2a519312009-02-10 21:25:55 +01004147
4148 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
Johannes Berg83f5e2c2009-06-17 17:41:49 +02004149 n_channels = validate_scan_freqs(
4150 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
Johannes Berg4c476992010-10-04 21:36:35 +02004151 if (!n_channels)
4152 return -EINVAL;
Johannes Berg2a519312009-02-10 21:25:55 +01004153 } else {
Johannes Berg34850ab2011-07-18 18:08:35 +02004154 enum ieee80211_band band;
Johannes Berg83f5e2c2009-06-17 17:41:49 +02004155 n_channels = 0;
4156
Johannes Berg2a519312009-02-10 21:25:55 +01004157 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4158 if (wiphy->bands[band])
4159 n_channels += wiphy->bands[band]->n_channels;
4160 }
4161
4162 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4163 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4164 n_ssids++;
4165
Johannes Berg4c476992010-10-04 21:36:35 +02004166 if (n_ssids > wiphy->max_scan_ssids)
4167 return -EINVAL;
Johannes Berg2a519312009-02-10 21:25:55 +01004168
Jouni Malinen70692ad2009-02-16 19:39:13 +02004169 if (info->attrs[NL80211_ATTR_IE])
4170 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4171 else
4172 ie_len = 0;
4173
Johannes Berg4c476992010-10-04 21:36:35 +02004174 if (ie_len > wiphy->max_scan_ie_len)
4175 return -EINVAL;
Johannes Berg18a83652009-03-31 12:12:05 +02004176
Johannes Berg2a519312009-02-10 21:25:55 +01004177 request = kzalloc(sizeof(*request)
Luciano Coelhoa2cd43c2011-05-18 11:42:03 +03004178 + sizeof(*request->ssids) * n_ssids
4179 + sizeof(*request->channels) * n_channels
Jouni Malinen70692ad2009-02-16 19:39:13 +02004180 + ie_len, GFP_KERNEL);
Johannes Berg4c476992010-10-04 21:36:35 +02004181 if (!request)
4182 return -ENOMEM;
Johannes Berg2a519312009-02-10 21:25:55 +01004183
Johannes Berg2a519312009-02-10 21:25:55 +01004184 if (n_ssids)
Johannes Berg5ba63532009-08-07 17:54:07 +02004185 request->ssids = (void *)&request->channels[n_channels];
Johannes Berg2a519312009-02-10 21:25:55 +01004186 request->n_ssids = n_ssids;
Jouni Malinen70692ad2009-02-16 19:39:13 +02004187 if (ie_len) {
4188 if (request->ssids)
4189 request->ie = (void *)(request->ssids + n_ssids);
4190 else
4191 request->ie = (void *)(request->channels + n_channels);
4192 }
Johannes Berg2a519312009-02-10 21:25:55 +01004193
Johannes Berg584991d2009-11-02 13:32:03 +01004194 i = 0;
Johannes Berg2a519312009-02-10 21:25:55 +01004195 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4196 /* user specified, bail out if channel not found */
Johannes Berg2a519312009-02-10 21:25:55 +01004197 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
Johannes Berg584991d2009-11-02 13:32:03 +01004198 struct ieee80211_channel *chan;
4199
4200 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4201
4202 if (!chan) {
Johannes Berg2a519312009-02-10 21:25:55 +01004203 err = -EINVAL;
4204 goto out_free;
4205 }
Johannes Berg584991d2009-11-02 13:32:03 +01004206
4207 /* ignore disabled channels */
4208 if (chan->flags & IEEE80211_CHAN_DISABLED)
4209 continue;
4210
4211 request->channels[i] = chan;
Johannes Berg2a519312009-02-10 21:25:55 +01004212 i++;
4213 }
4214 } else {
Johannes Berg34850ab2011-07-18 18:08:35 +02004215 enum ieee80211_band band;
4216
Johannes Berg2a519312009-02-10 21:25:55 +01004217 /* all channels */
Johannes Berg2a519312009-02-10 21:25:55 +01004218 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4219 int j;
4220 if (!wiphy->bands[band])
4221 continue;
4222 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
Johannes Berg584991d2009-11-02 13:32:03 +01004223 struct ieee80211_channel *chan;
4224
4225 chan = &wiphy->bands[band]->channels[j];
4226
4227 if (chan->flags & IEEE80211_CHAN_DISABLED)
4228 continue;
4229
4230 request->channels[i] = chan;
Johannes Berg2a519312009-02-10 21:25:55 +01004231 i++;
4232 }
4233 }
4234 }
4235
Johannes Berg584991d2009-11-02 13:32:03 +01004236 if (!i) {
4237 err = -EINVAL;
4238 goto out_free;
4239 }
4240
4241 request->n_channels = i;
4242
Johannes Berg2a519312009-02-10 21:25:55 +01004243 i = 0;
4244 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4245 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
Luciano Coelho57a27e12011-06-07 20:42:26 +03004246 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
Johannes Berg2a519312009-02-10 21:25:55 +01004247 err = -EINVAL;
4248 goto out_free;
4249 }
Luciano Coelho57a27e12011-06-07 20:42:26 +03004250 request->ssids[i].ssid_len = nla_len(attr);
Johannes Berg2a519312009-02-10 21:25:55 +01004251 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
Johannes Berg2a519312009-02-10 21:25:55 +01004252 i++;
4253 }
4254 }
4255
Jouni Malinen70692ad2009-02-16 19:39:13 +02004256 if (info->attrs[NL80211_ATTR_IE]) {
4257 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
Johannes Bergde95a542009-04-01 11:58:36 +02004258 memcpy((void *)request->ie,
4259 nla_data(info->attrs[NL80211_ATTR_IE]),
Jouni Malinen70692ad2009-02-16 19:39:13 +02004260 request->ie_len);
4261 }
Sunil Dutt Undekari08166fc2012-03-05 21:01:23 +05304262 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
Sunil Dutt Undekariae86f142012-03-16 20:17:03 +05304263 if (wiphy->bands[i])
4264 request->rates[i] =
4265 (1 << wiphy->bands[i]->n_bitrates) - 1;
Sunil Dutt Undekari08166fc2012-03-05 21:01:23 +05304266 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4267 nla_for_each_nested(attr,
4268 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4269 tmp) {
4270 enum ieee80211_band band = nla_type(attr);
4271 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4272 err = -EINVAL;
4273 goto out_free;
4274 }
4275 err = ieee80211_get_ratemask(wiphy->bands[band],
4276 nla_data(attr),
4277 nla_len(attr),
4278 &request->rates[band]);
4279 if (err)
4280 goto out_free;
4281 }
4282 }
Jouni Malinen70692ad2009-02-16 19:39:13 +02004283
Johannes Berg34850ab2011-07-18 18:08:35 +02004284 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
Johannes Berga401d2b2011-07-20 00:52:16 +02004285 if (wiphy->bands[i])
4286 request->rates[i] =
4287 (1 << wiphy->bands[i]->n_bitrates) - 1;
Johannes Berg34850ab2011-07-18 18:08:35 +02004288
4289 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4290 nla_for_each_nested(attr,
4291 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4292 tmp) {
4293 enum ieee80211_band band = nla_type(attr);
4294
Dan Carpenter84404622011-07-29 11:52:18 +03004295 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
Johannes Berg34850ab2011-07-18 18:08:35 +02004296 err = -EINVAL;
4297 goto out_free;
4298 }
Felix Fietkau0f718b62013-11-20 18:40:41 +00004299
4300 if (!wiphy->bands[band])
4301 continue;
4302
Johannes Berg34850ab2011-07-18 18:08:35 +02004303 err = ieee80211_get_ratemask(wiphy->bands[band],
4304 nla_data(attr),
4305 nla_len(attr),
4306 &request->rates[band]);
4307 if (err)
4308 goto out_free;
4309 }
4310 }
4311
Rajkumar Manoharane9f935e2011-09-25 14:53:30 +05304312 request->no_cck =
4313 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4314
Johannes Berg463d0182009-07-14 00:33:35 +02004315 request->dev = dev;
Johannes Berg79c97e92009-07-07 03:56:12 +02004316 request->wiphy = &rdev->wiphy;
Sunil Dutt Undekari08166fc2012-03-05 21:01:23 +05304317 request->no_cck =
4318 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
Johannes Berg2a519312009-02-10 21:25:55 +01004319
Johannes Berg79c97e92009-07-07 03:56:12 +02004320 rdev->scan_req = request;
4321 err = rdev->ops->scan(&rdev->wiphy, dev, request);
Johannes Berg2a519312009-02-10 21:25:55 +01004322
Johannes Berg463d0182009-07-14 00:33:35 +02004323 if (!err) {
Johannes Berg79c97e92009-07-07 03:56:12 +02004324 nl80211_send_scan_start(rdev, dev);
Johannes Berg463d0182009-07-14 00:33:35 +02004325 dev_hold(dev);
Johannes Berg4c476992010-10-04 21:36:35 +02004326 } else {
Johannes Berg2a519312009-02-10 21:25:55 +01004327 out_free:
Johannes Berg79c97e92009-07-07 03:56:12 +02004328 rdev->scan_req = NULL;
Johannes Berg2a519312009-02-10 21:25:55 +01004329 kfree(request);
4330 }
Johannes Berg3b858752009-03-12 09:55:09 +01004331
Johannes Berg2a519312009-02-10 21:25:55 +01004332 return err;
4333}
4334
Luciano Coelho807f8a82011-05-11 17:09:35 +03004335static int nl80211_start_sched_scan(struct sk_buff *skb,
4336 struct genl_info *info)
4337{
4338 struct cfg80211_sched_scan_request *request;
4339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4340 struct net_device *dev = info->user_ptr[1];
Luciano Coelho807f8a82011-05-11 17:09:35 +03004341 struct nlattr *attr;
4342 struct wiphy *wiphy;
Luciano Coelhoa1f1c212011-08-31 16:01:48 +03004343 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
Luciano Coelhobbe6ad62011-05-11 17:09:37 +03004344 u32 interval;
Luciano Coelho807f8a82011-05-11 17:09:35 +03004345 enum ieee80211_band band;
4346 size_t ie_len;
Luciano Coelhoa1f1c212011-08-31 16:01:48 +03004347 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
Luciano Coelho807f8a82011-05-11 17:09:35 +03004348
4349 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4350 !rdev->ops->sched_scan_start)
4351 return -EOPNOTSUPP;
4352
4353 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4354 return -EINVAL;
4355
Luciano Coelhobbe6ad62011-05-11 17:09:37 +03004356 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4357 return -EINVAL;
4358
4359 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4360 if (interval == 0)
4361 return -EINVAL;
4362
Luciano Coelho807f8a82011-05-11 17:09:35 +03004363 wiphy = &rdev->wiphy;
4364
4365 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4366 n_channels = validate_scan_freqs(
4367 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4368 if (!n_channels)
4369 return -EINVAL;
4370 } else {
4371 n_channels = 0;
4372
4373 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4374 if (wiphy->bands[band])
4375 n_channels += wiphy->bands[band]->n_channels;
4376 }
4377
4378 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4379 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4380 tmp)
4381 n_ssids++;
4382
Luciano Coelho93b6aa62011-07-13 14:57:28 +03004383 if (n_ssids > wiphy->max_sched_scan_ssids)
Luciano Coelho807f8a82011-05-11 17:09:35 +03004384 return -EINVAL;
4385
Luciano Coelhoa1f1c212011-08-31 16:01:48 +03004386 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4387 nla_for_each_nested(attr,
4388 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4389 tmp)
4390 n_match_sets++;
4391
4392 if (n_match_sets > wiphy->max_match_sets)
4393 return -EINVAL;
4394
Luciano Coelho807f8a82011-05-11 17:09:35 +03004395 if (info->attrs[NL80211_ATTR_IE])
4396 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4397 else
4398 ie_len = 0;
4399
Luciano Coelho5a865ba2011-07-13 14:57:29 +03004400 if (ie_len > wiphy->max_sched_scan_ie_len)
Luciano Coelho807f8a82011-05-11 17:09:35 +03004401 return -EINVAL;
4402
Luciano Coelhoc10841c2011-06-30 08:32:41 +03004403 mutex_lock(&rdev->sched_scan_mtx);
4404
4405 if (rdev->sched_scan_req) {
4406 err = -EINPROGRESS;
4407 goto out;
4408 }
4409
Luciano Coelho807f8a82011-05-11 17:09:35 +03004410 request = kzalloc(sizeof(*request)
Luciano Coelhoa2cd43c2011-05-18 11:42:03 +03004411 + sizeof(*request->ssids) * n_ssids
Luciano Coelhoa1f1c212011-08-31 16:01:48 +03004412 + sizeof(*request->match_sets) * n_match_sets
Luciano Coelhoa2cd43c2011-05-18 11:42:03 +03004413 + sizeof(*request->channels) * n_channels
Luciano Coelho807f8a82011-05-11 17:09:35 +03004414 + ie_len, GFP_KERNEL);
Luciano Coelhoc10841c2011-06-30 08:32:41 +03004415 if (!request) {
4416 err = -ENOMEM;
4417 goto out;
4418 }
Luciano Coelho807f8a82011-05-11 17:09:35 +03004419
4420 if (n_ssids)
4421 request->ssids = (void *)&request->channels[n_channels];
4422 request->n_ssids = n_ssids;
4423 if (ie_len) {
4424 if (request->ssids)
4425 request->ie = (void *)(request->ssids + n_ssids);
4426 else
4427 request->ie = (void *)(request->channels + n_channels);
4428 }
4429
Luciano Coelhoa1f1c212011-08-31 16:01:48 +03004430 if (n_match_sets) {
4431 if (request->ie)
4432 request->match_sets = (void *)(request->ie + ie_len);
4433 else if (request->ssids)
4434 request->match_sets =
4435 (void *)(request->ssids + n_ssids);
4436 else
4437 request->match_sets =
4438 (void *)(request->channels + n_channels);
4439 }
4440 request->n_match_sets = n_match_sets;
4441
Luciano Coelho807f8a82011-05-11 17:09:35 +03004442 i = 0;
4443 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4444 /* user specified, bail out if channel not found */
4445 nla_for_each_nested(attr,
4446 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4447 tmp) {
4448 struct ieee80211_channel *chan;
4449
4450 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4451
4452 if (!chan) {
4453 err = -EINVAL;
4454 goto out_free;
4455 }
4456
4457 /* ignore disabled channels */
4458 if (chan->flags & IEEE80211_CHAN_DISABLED)
4459 continue;
4460
4461 request->channels[i] = chan;
4462 i++;
4463 }
4464 } else {
4465 /* all channels */
4466 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4467 int j;
4468 if (!wiphy->bands[band])
4469 continue;
4470 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4471 struct ieee80211_channel *chan;
4472
4473 chan = &wiphy->bands[band]->channels[j];
4474
4475 if (chan->flags & IEEE80211_CHAN_DISABLED)
4476 continue;
4477
4478 request->channels[i] = chan;
4479 i++;
4480 }
4481 }
4482 }
4483
4484 if (!i) {
4485 err = -EINVAL;
4486 goto out_free;
4487 }
4488
4489 request->n_channels = i;
4490
4491 i = 0;
4492 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4493 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4494 tmp) {
Luciano Coelho57a27e12011-06-07 20:42:26 +03004495 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
Luciano Coelho807f8a82011-05-11 17:09:35 +03004496 err = -EINVAL;
4497 goto out_free;
4498 }
Luciano Coelho57a27e12011-06-07 20:42:26 +03004499 request->ssids[i].ssid_len = nla_len(attr);
Luciano Coelho807f8a82011-05-11 17:09:35 +03004500 memcpy(request->ssids[i].ssid, nla_data(attr),
4501 nla_len(attr));
Luciano Coelho807f8a82011-05-11 17:09:35 +03004502 i++;
4503 }
4504 }
4505
Luciano Coelhoa1f1c212011-08-31 16:01:48 +03004506 i = 0;
4507 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4508 nla_for_each_nested(attr,
4509 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4510 tmp) {
4511 struct nlattr *ssid;
4512
4513 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4514 nla_data(attr), nla_len(attr),
4515 nl80211_match_policy);
4516 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4517 if (ssid) {
4518 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4519 err = -EINVAL;
4520 goto out_free;
4521 }
4522 memcpy(request->match_sets[i].ssid.ssid,
4523 nla_data(ssid), nla_len(ssid));
4524 request->match_sets[i].ssid.ssid_len =
4525 nla_len(ssid);
4526 }
4527 i++;
4528 }
4529 }
4530
Luciano Coelho807f8a82011-05-11 17:09:35 +03004531 if (info->attrs[NL80211_ATTR_IE]) {
4532 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4533 memcpy((void *)request->ie,
4534 nla_data(info->attrs[NL80211_ATTR_IE]),
4535 request->ie_len);
4536 }
4537
4538 request->dev = dev;
4539 request->wiphy = &rdev->wiphy;
Luciano Coelhobbe6ad62011-05-11 17:09:37 +03004540 request->interval = interval;
Luciano Coelho807f8a82011-05-11 17:09:35 +03004541
4542 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4543 if (!err) {
4544 rdev->sched_scan_req = request;
4545 nl80211_send_sched_scan(rdev, dev,
4546 NL80211_CMD_START_SCHED_SCAN);
4547 goto out;
4548 }
4549
4550out_free:
4551 kfree(request);
4552out:
Luciano Coelhoc10841c2011-06-30 08:32:41 +03004553 mutex_unlock(&rdev->sched_scan_mtx);
Luciano Coelho807f8a82011-05-11 17:09:35 +03004554 return err;
4555}
4556
4557static int nl80211_stop_sched_scan(struct sk_buff *skb,
4558 struct genl_info *info)
4559{
4560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Luciano Coelhoc10841c2011-06-30 08:32:41 +03004561 int err;
Luciano Coelho807f8a82011-05-11 17:09:35 +03004562
4563 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4564 !rdev->ops->sched_scan_stop)
4565 return -EOPNOTSUPP;
4566
Luciano Coelhoc10841c2011-06-30 08:32:41 +03004567 mutex_lock(&rdev->sched_scan_mtx);
4568 err = __cfg80211_stop_sched_scan(rdev, false);
4569 mutex_unlock(&rdev->sched_scan_mtx);
4570
4571 return err;
Luciano Coelho807f8a82011-05-11 17:09:35 +03004572}
4573
Johannes Berg9720bb32011-06-21 09:45:33 +02004574static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4575 u32 seq, int flags,
Johannes Berg2a519312009-02-10 21:25:55 +01004576 struct cfg80211_registered_device *rdev,
Johannes Berg48ab9052009-07-10 18:42:31 +02004577 struct wireless_dev *wdev,
4578 struct cfg80211_internal_bss *intbss)
Johannes Berg2a519312009-02-10 21:25:55 +01004579{
Johannes Berg48ab9052009-07-10 18:42:31 +02004580 struct cfg80211_bss *res = &intbss->pub;
Johannes Berg2a519312009-02-10 21:25:55 +01004581 void *hdr;
4582 struct nlattr *bss;
Johannes Berg48ab9052009-07-10 18:42:31 +02004583
4584 ASSERT_WDEV_LOCK(wdev);
Johannes Berg2a519312009-02-10 21:25:55 +01004585
Johannes Berg9720bb32011-06-21 09:45:33 +02004586 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
Johannes Berg2a519312009-02-10 21:25:55 +01004587 NL80211_CMD_NEW_SCAN_RESULTS);
4588 if (!hdr)
4589 return -1;
4590
Johannes Berg9720bb32011-06-21 09:45:33 +02004591 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4592
Johannes Bergf5ea9122009-08-07 16:17:38 +02004593 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
Johannes Berg48ab9052009-07-10 18:42:31 +02004594 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
Johannes Berg2a519312009-02-10 21:25:55 +01004595
4596 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4597 if (!bss)
4598 goto nla_put_failure;
4599 if (!is_zero_ether_addr(res->bssid))
4600 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4601 if (res->information_elements && res->len_information_elements)
4602 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4603 res->len_information_elements,
4604 res->information_elements);
Jouni Malinen34a6edd2010-01-06 16:19:24 +02004605 if (res->beacon_ies && res->len_beacon_ies &&
4606 res->beacon_ies != res->information_elements)
4607 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4608 res->len_beacon_ies, res->beacon_ies);
Johannes Berg2a519312009-02-10 21:25:55 +01004609 if (res->tsf)
4610 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4611 if (res->beacon_interval)
4612 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4613 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4614 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
Holger Schurig7c896062009-09-24 12:21:01 +02004615 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4616 jiffies_to_msecs(jiffies - intbss->ts));
Johannes Berg2a519312009-02-10 21:25:55 +01004617
Johannes Berg77965c92009-02-18 18:45:06 +01004618 switch (rdev->wiphy.signal_type) {
Johannes Berg2a519312009-02-10 21:25:55 +01004619 case CFG80211_SIGNAL_TYPE_MBM:
4620 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4621 break;
4622 case CFG80211_SIGNAL_TYPE_UNSPEC:
4623 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4624 break;
4625 default:
4626 break;
4627 }
4628
Johannes Berg48ab9052009-07-10 18:42:31 +02004629 switch (wdev->iftype) {
Johannes Berg074ac8d2010-09-16 14:58:22 +02004630 case NL80211_IFTYPE_P2P_CLIENT:
Johannes Berg48ab9052009-07-10 18:42:31 +02004631 case NL80211_IFTYPE_STATION:
4632 if (intbss == wdev->current_bss)
4633 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4634 NL80211_BSS_STATUS_ASSOCIATED);
Johannes Berg48ab9052009-07-10 18:42:31 +02004635 break;
4636 case NL80211_IFTYPE_ADHOC:
4637 if (intbss == wdev->current_bss)
4638 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4639 NL80211_BSS_STATUS_IBSS_JOINED);
4640 break;
4641 default:
4642 break;
4643 }
4644
Johannes Berg2a519312009-02-10 21:25:55 +01004645 nla_nest_end(msg, bss);
4646
4647 return genlmsg_end(msg, hdr);
4648
4649 nla_put_failure:
4650 genlmsg_cancel(msg, hdr);
4651 return -EMSGSIZE;
4652}
4653
4654static int nl80211_dump_scan(struct sk_buff *skb,
4655 struct netlink_callback *cb)
4656{
Johannes Berg48ab9052009-07-10 18:42:31 +02004657 struct cfg80211_registered_device *rdev;
4658 struct net_device *dev;
Johannes Berg2a519312009-02-10 21:25:55 +01004659 struct cfg80211_internal_bss *scan;
Johannes Berg48ab9052009-07-10 18:42:31 +02004660 struct wireless_dev *wdev;
Johannes Berg2a519312009-02-10 21:25:55 +01004661 int start = cb->args[1], idx = 0;
4662 int err;
4663
Johannes Berg67748892010-10-04 21:14:06 +02004664 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4665 if (err)
4666 return err;
Johannes Berg2a519312009-02-10 21:25:55 +01004667
Johannes Berg48ab9052009-07-10 18:42:31 +02004668 wdev = dev->ieee80211_ptr;
Johannes Berg2a519312009-02-10 21:25:55 +01004669
Johannes Berg48ab9052009-07-10 18:42:31 +02004670 wdev_lock(wdev);
4671 spin_lock_bh(&rdev->bss_lock);
4672 cfg80211_bss_expire(rdev);
4673
Johannes Berg9720bb32011-06-21 09:45:33 +02004674 cb->seq = rdev->bss_generation;
4675
Johannes Berg48ab9052009-07-10 18:42:31 +02004676 list_for_each_entry(scan, &rdev->bss_list, list) {
Johannes Berg2a519312009-02-10 21:25:55 +01004677 if (++idx <= start)
4678 continue;
Johannes Berg9720bb32011-06-21 09:45:33 +02004679 if (nl80211_send_bss(skb, cb,
Johannes Berg2a519312009-02-10 21:25:55 +01004680 cb->nlh->nlmsg_seq, NLM_F_MULTI,
Johannes Berg48ab9052009-07-10 18:42:31 +02004681 rdev, wdev, scan) < 0) {
Johannes Berg2a519312009-02-10 21:25:55 +01004682 idx--;
Johannes Berg67748892010-10-04 21:14:06 +02004683 break;
Johannes Berg2a519312009-02-10 21:25:55 +01004684 }
4685 }
4686
Johannes Berg48ab9052009-07-10 18:42:31 +02004687 spin_unlock_bh(&rdev->bss_lock);
4688 wdev_unlock(wdev);
Johannes Berg2a519312009-02-10 21:25:55 +01004689
4690 cb->args[1] = idx;
Johannes Berg67748892010-10-04 21:14:06 +02004691 nl80211_finish_netdev_dump(rdev);
Johannes Berg2a519312009-02-10 21:25:55 +01004692
Johannes Berg67748892010-10-04 21:14:06 +02004693 return skb->len;
Johannes Berg2a519312009-02-10 21:25:55 +01004694}
4695
Holger Schurig61fa7132009-11-11 12:25:40 +01004696static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4697 int flags, struct net_device *dev,
4698 struct survey_info *survey)
4699{
4700 void *hdr;
4701 struct nlattr *infoattr;
4702
Holger Schurig61fa7132009-11-11 12:25:40 +01004703 hdr = nl80211hdr_put(msg, pid, seq, flags,
4704 NL80211_CMD_NEW_SURVEY_RESULTS);
4705 if (!hdr)
4706 return -ENOMEM;
4707
4708 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4709
4710 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4711 if (!infoattr)
4712 goto nla_put_failure;
4713
4714 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4715 survey->channel->center_freq);
4716 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4717 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4718 survey->noise);
Felix Fietkau17e5a802010-09-29 17:15:30 +02004719 if (survey->filled & SURVEY_INFO_IN_USE)
4720 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
Felix Fietkau8610c29a2010-10-09 02:39:29 +02004721 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4722 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4723 survey->channel_time);
4724 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4725 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4726 survey->channel_time_busy);
4727 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4728 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4729 survey->channel_time_ext_busy);
4730 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4731 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4732 survey->channel_time_rx);
4733 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4734 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4735 survey->channel_time_tx);
Holger Schurig61fa7132009-11-11 12:25:40 +01004736
4737 nla_nest_end(msg, infoattr);
4738
4739 return genlmsg_end(msg, hdr);
4740
4741 nla_put_failure:
4742 genlmsg_cancel(msg, hdr);
4743 return -EMSGSIZE;
4744}
4745
4746static int nl80211_dump_survey(struct sk_buff *skb,
4747 struct netlink_callback *cb)
4748{
4749 struct survey_info survey;
4750 struct cfg80211_registered_device *dev;
4751 struct net_device *netdev;
Holger Schurig61fa7132009-11-11 12:25:40 +01004752 int survey_idx = cb->args[1];
4753 int res;
4754
Johannes Berg67748892010-10-04 21:14:06 +02004755 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4756 if (res)
4757 return res;
Holger Schurig61fa7132009-11-11 12:25:40 +01004758
4759 if (!dev->ops->dump_survey) {
4760 res = -EOPNOTSUPP;
4761 goto out_err;
4762 }
4763
4764 while (1) {
Luis R. Rodriguez180cdc72011-05-27 07:24:02 -07004765 struct ieee80211_channel *chan;
4766
Holger Schurig61fa7132009-11-11 12:25:40 +01004767 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4768 &survey);
4769 if (res == -ENOENT)
4770 break;
4771 if (res)
4772 goto out_err;
4773
Luis R. Rodriguez180cdc72011-05-27 07:24:02 -07004774 /* Survey without a channel doesn't make sense */
4775 if (!survey.channel) {
4776 res = -EINVAL;
4777 goto out;
4778 }
4779
4780 chan = ieee80211_get_channel(&dev->wiphy,
4781 survey.channel->center_freq);
4782 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4783 survey_idx++;
4784 continue;
4785 }
4786
Holger Schurig61fa7132009-11-11 12:25:40 +01004787 if (nl80211_send_survey(skb,
4788 NETLINK_CB(cb->skb).pid,
4789 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4790 netdev,
4791 &survey) < 0)
4792 goto out;
4793 survey_idx++;
4794 }
4795
4796 out:
4797 cb->args[1] = survey_idx;
4798 res = skb->len;
4799 out_err:
Johannes Berg67748892010-10-04 21:14:06 +02004800 nl80211_finish_netdev_dump(dev);
Holger Schurig61fa7132009-11-11 12:25:40 +01004801 return res;
4802}
4803
Jouni Malinen255e7372009-03-20 21:21:17 +02004804static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4805{
Samuel Ortizb23aa672009-07-01 21:26:54 +02004806 return auth_type <= NL80211_AUTHTYPE_MAX;
Jouni Malinen255e7372009-03-20 21:21:17 +02004807}
4808
Samuel Ortizb23aa672009-07-01 21:26:54 +02004809static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4810{
4811 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4812 NL80211_WPA_VERSION_2));
4813}
4814
Jouni Malinen636a5d32009-03-19 13:39:22 +02004815static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4816{
Johannes Berg4c476992010-10-04 21:36:35 +02004817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4818 struct net_device *dev = info->user_ptr[1];
Johannes Berg19957bb2009-07-02 17:20:43 +02004819 struct ieee80211_channel *chan;
4820 const u8 *bssid, *ssid, *ie = NULL;
4821 int err, ssid_len, ie_len = 0;
4822 enum nl80211_auth_type auth_type;
Johannes Bergfffd0932009-07-08 14:22:54 +02004823 struct key_parse key;
Jouni Malinend5cdfac2010-04-04 09:37:19 +03004824 bool local_state_change;
Jouni Malinen636a5d32009-03-19 13:39:22 +02004825
Johannes Bergf4a11bb2009-03-27 12:40:28 +01004826 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4827 return -EINVAL;
4828
4829 if (!info->attrs[NL80211_ATTR_MAC])
4830 return -EINVAL;
4831
Jouni Malinen17780922009-03-27 20:52:47 +02004832 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4833 return -EINVAL;
4834
Johannes Berg19957bb2009-07-02 17:20:43 +02004835 if (!info->attrs[NL80211_ATTR_SSID])
4836 return -EINVAL;
4837
4838 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4839 return -EINVAL;
4840
Johannes Bergfffd0932009-07-08 14:22:54 +02004841 err = nl80211_parse_key(info, &key);
4842 if (err)
4843 return err;
4844
4845 if (key.idx >= 0) {
Johannes Berge31b8212010-10-05 19:39:30 +02004846 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4847 return -EINVAL;
Johannes Bergfffd0932009-07-08 14:22:54 +02004848 if (!key.p.key || !key.p.key_len)
4849 return -EINVAL;
4850 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4851 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4852 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4853 key.p.key_len != WLAN_KEY_LEN_WEP104))
4854 return -EINVAL;
4855 if (key.idx > 4)
4856 return -EINVAL;
4857 } else {
4858 key.p.key_len = 0;
4859 key.p.key = NULL;
4860 }
4861
Johannes Bergafea0b72010-08-10 09:46:42 +02004862 if (key.idx >= 0) {
4863 int i;
4864 bool ok = false;
4865 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4866 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4867 ok = true;
4868 break;
4869 }
4870 }
Johannes Berg4c476992010-10-04 21:36:35 +02004871 if (!ok)
4872 return -EINVAL;
Johannes Bergafea0b72010-08-10 09:46:42 +02004873 }
4874
Johannes Berg4c476992010-10-04 21:36:35 +02004875 if (!rdev->ops->auth)
4876 return -EOPNOTSUPP;
Jouni Malinen636a5d32009-03-19 13:39:22 +02004877
Johannes Berg074ac8d2010-09-16 14:58:22 +02004878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02004879 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4880 return -EOPNOTSUPP;
Jouni Malineneec60b02009-03-20 21:21:19 +02004881
Johannes Berg19957bb2009-07-02 17:20:43 +02004882 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Johannes Berg79c97e92009-07-07 03:56:12 +02004883 chan = ieee80211_get_channel(&rdev->wiphy,
Johannes Berg19957bb2009-07-02 17:20:43 +02004884 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
Johannes Berg4c476992010-10-04 21:36:35 +02004885 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4886 return -EINVAL;
Jouni Malinen636a5d32009-03-19 13:39:22 +02004887
Johannes Berg19957bb2009-07-02 17:20:43 +02004888 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4889 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4890
4891 if (info->attrs[NL80211_ATTR_IE]) {
4892 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4893 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4894 }
4895
4896 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
Johannes Berg4c476992010-10-04 21:36:35 +02004897 if (!nl80211_valid_auth_type(auth_type))
4898 return -EINVAL;
Johannes Berg19957bb2009-07-02 17:20:43 +02004899
Jouni Malinend5cdfac2010-04-04 09:37:19 +03004900 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4901
Johannes Berg95de8172012-01-20 13:55:25 +01004902 /*
4903 * Since we no longer track auth state, ignore
4904 * requests to only change local state.
4905 */
4906 if (local_state_change)
4907 return 0;
4908
Johannes Berg4c476992010-10-04 21:36:35 +02004909 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4910 ssid, ssid_len, ie, ie_len,
Johannes Berg95de8172012-01-20 13:55:25 +01004911 key.p.key, key.p.key_len, key.idx);
Jouni Malinen636a5d32009-03-19 13:39:22 +02004912}
4913
Johannes Bergc0692b82010-08-27 14:26:53 +03004914static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4915 struct genl_info *info,
Johannes Berg3dc27d22009-07-02 21:36:37 +02004916 struct cfg80211_crypto_settings *settings,
4917 int cipher_limit)
Samuel Ortizb23aa672009-07-01 21:26:54 +02004918{
Johannes Bergc0b2bbd2009-07-25 16:54:36 +02004919 memset(settings, 0, sizeof(*settings));
4920
Samuel Ortizb23aa672009-07-01 21:26:54 +02004921 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4922
Johannes Bergc0692b82010-08-27 14:26:53 +03004923 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4924 u16 proto;
4925 proto = nla_get_u16(
4926 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4927 settings->control_port_ethertype = cpu_to_be16(proto);
4928 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4929 proto != ETH_P_PAE)
4930 return -EINVAL;
4931 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4932 settings->control_port_no_encrypt = true;
4933 } else
4934 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4935
Samuel Ortizb23aa672009-07-01 21:26:54 +02004936 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4937 void *data;
4938 int len, i;
4939
4940 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4941 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4942 settings->n_ciphers_pairwise = len / sizeof(u32);
4943
4944 if (len % sizeof(u32))
4945 return -EINVAL;
4946
Johannes Berg3dc27d22009-07-02 21:36:37 +02004947 if (settings->n_ciphers_pairwise > cipher_limit)
Samuel Ortizb23aa672009-07-01 21:26:54 +02004948 return -EINVAL;
4949
4950 memcpy(settings->ciphers_pairwise, data, len);
4951
4952 for (i = 0; i < settings->n_ciphers_pairwise; i++)
Jouni Malinen38ba3c52011-09-21 18:14:56 +03004953 if (!cfg80211_supported_cipher_suite(
4954 &rdev->wiphy,
Samuel Ortizb23aa672009-07-01 21:26:54 +02004955 settings->ciphers_pairwise[i]))
4956 return -EINVAL;
4957 }
4958
4959 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4960 settings->cipher_group =
4961 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
Jouni Malinen38ba3c52011-09-21 18:14:56 +03004962 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4963 settings->cipher_group))
Samuel Ortizb23aa672009-07-01 21:26:54 +02004964 return -EINVAL;
4965 }
4966
4967 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4968 settings->wpa_versions =
4969 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4970 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4971 return -EINVAL;
4972 }
4973
4974 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4975 void *data;
Jouni Malinen6d302402011-09-21 18:11:33 +03004976 int len;
Samuel Ortizb23aa672009-07-01 21:26:54 +02004977
4978 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4979 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4980 settings->n_akm_suites = len / sizeof(u32);
4981
4982 if (len % sizeof(u32))
4983 return -EINVAL;
4984
Jouni Malinen1b9ca022011-09-21 16:13:07 +03004985 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4986 return -EINVAL;
4987
Samuel Ortizb23aa672009-07-01 21:26:54 +02004988 memcpy(settings->akm_suites, data, len);
Samuel Ortizb23aa672009-07-01 21:26:54 +02004989 }
4990
4991 return 0;
4992}
4993
Jouni Malinen636a5d32009-03-19 13:39:22 +02004994static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4995{
Johannes Berg4c476992010-10-04 21:36:35 +02004996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4997 struct net_device *dev = info->user_ptr[1];
Johannes Berg19957bb2009-07-02 17:20:43 +02004998 struct cfg80211_crypto_settings crypto;
Johannes Bergf444de02010-05-05 15:25:02 +02004999 struct ieee80211_channel *chan;
Johannes Berg3e5d7642009-07-07 14:37:26 +02005000 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
Johannes Berg19957bb2009-07-02 17:20:43 +02005001 int err, ssid_len, ie_len = 0;
5002 bool use_mfp = false;
Ben Greear7e7c8922011-11-18 11:31:59 -08005003 u32 flags = 0;
5004 struct ieee80211_ht_cap *ht_capa = NULL;
5005 struct ieee80211_ht_cap *ht_capa_mask = NULL;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005006
Johannes Bergf4a11bb2009-03-27 12:40:28 +01005007 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5008 return -EINVAL;
5009
5010 if (!info->attrs[NL80211_ATTR_MAC] ||
Johannes Berg19957bb2009-07-02 17:20:43 +02005011 !info->attrs[NL80211_ATTR_SSID] ||
5012 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
Johannes Bergf4a11bb2009-03-27 12:40:28 +01005013 return -EINVAL;
5014
Johannes Berg4c476992010-10-04 21:36:35 +02005015 if (!rdev->ops->assoc)
5016 return -EOPNOTSUPP;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005017
Johannes Berg074ac8d2010-09-16 14:58:22 +02005018 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005019 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5020 return -EOPNOTSUPP;
Jouni Malineneec60b02009-03-20 21:21:19 +02005021
Johannes Berg19957bb2009-07-02 17:20:43 +02005022 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005023
Johannes Berg19957bb2009-07-02 17:20:43 +02005024 chan = ieee80211_get_channel(&rdev->wiphy,
5025 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
Johannes Berg4c476992010-10-04 21:36:35 +02005026 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5027 return -EINVAL;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005028
Johannes Berg19957bb2009-07-02 17:20:43 +02005029 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5030 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005031
5032 if (info->attrs[NL80211_ATTR_IE]) {
Johannes Berg19957bb2009-07-02 17:20:43 +02005033 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5034 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005035 }
5036
Jouni Malinendc6382c2009-05-06 22:09:37 +03005037 if (info->attrs[NL80211_ATTR_USE_MFP]) {
Johannes Berg4f5dadc2009-07-07 03:56:10 +02005038 enum nl80211_mfp mfp =
Jouni Malinendc6382c2009-05-06 22:09:37 +03005039 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
Johannes Berg4f5dadc2009-07-07 03:56:10 +02005040 if (mfp == NL80211_MFP_REQUIRED)
Johannes Berg19957bb2009-07-02 17:20:43 +02005041 use_mfp = true;
Johannes Berg4c476992010-10-04 21:36:35 +02005042 else if (mfp != NL80211_MFP_NO)
5043 return -EINVAL;
Jouni Malinendc6382c2009-05-06 22:09:37 +03005044 }
5045
Johannes Berg3e5d7642009-07-07 14:37:26 +02005046 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5047 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5048
Ben Greear7e7c8922011-11-18 11:31:59 -08005049 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5050 flags |= ASSOC_REQ_DISABLE_HT;
5051
5052 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5053 ht_capa_mask =
5054 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5055
5056 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5057 if (!ht_capa_mask)
5058 return -EINVAL;
5059 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5060 }
5061
Johannes Bergc0692b82010-08-27 14:26:53 +03005062 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
Samuel Ortizb23aa672009-07-01 21:26:54 +02005063 if (!err)
Johannes Berg3e5d7642009-07-07 14:37:26 +02005064 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5065 ssid, ssid_len, ie, ie_len, use_mfp,
Ben Greear7e7c8922011-11-18 11:31:59 -08005066 &crypto, flags, ht_capa,
5067 ht_capa_mask);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005068
Jouni Malinen636a5d32009-03-19 13:39:22 +02005069 return err;
5070}
5071
5072static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5073{
Johannes Berg4c476992010-10-04 21:36:35 +02005074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5075 struct net_device *dev = info->user_ptr[1];
Johannes Berg19957bb2009-07-02 17:20:43 +02005076 const u8 *ie = NULL, *bssid;
Johannes Berg4c476992010-10-04 21:36:35 +02005077 int ie_len = 0;
Johannes Berg19957bb2009-07-02 17:20:43 +02005078 u16 reason_code;
Jouni Malinend5cdfac2010-04-04 09:37:19 +03005079 bool local_state_change;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005080
Johannes Bergf4a11bb2009-03-27 12:40:28 +01005081 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5082 return -EINVAL;
5083
5084 if (!info->attrs[NL80211_ATTR_MAC])
5085 return -EINVAL;
5086
5087 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5088 return -EINVAL;
5089
Johannes Berg4c476992010-10-04 21:36:35 +02005090 if (!rdev->ops->deauth)
5091 return -EOPNOTSUPP;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005092
Johannes Berg074ac8d2010-09-16 14:58:22 +02005093 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005094 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5095 return -EOPNOTSUPP;
Jouni Malineneec60b02009-03-20 21:21:19 +02005096
Johannes Berg19957bb2009-07-02 17:20:43 +02005097 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005098
Johannes Berg19957bb2009-07-02 17:20:43 +02005099 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5100 if (reason_code == 0) {
Johannes Bergf4a11bb2009-03-27 12:40:28 +01005101 /* Reason Code 0 is reserved */
Johannes Berg4c476992010-10-04 21:36:35 +02005102 return -EINVAL;
Jouni Malinen255e7372009-03-20 21:21:17 +02005103 }
Jouni Malinen636a5d32009-03-19 13:39:22 +02005104
5105 if (info->attrs[NL80211_ATTR_IE]) {
Johannes Berg19957bb2009-07-02 17:20:43 +02005106 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5107 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005108 }
5109
Jouni Malinend5cdfac2010-04-04 09:37:19 +03005110 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5111
Johannes Berg4c476992010-10-04 21:36:35 +02005112 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5113 local_state_change);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005114}
5115
5116static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5117{
Johannes Berg4c476992010-10-04 21:36:35 +02005118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5119 struct net_device *dev = info->user_ptr[1];
Johannes Berg19957bb2009-07-02 17:20:43 +02005120 const u8 *ie = NULL, *bssid;
Johannes Berg4c476992010-10-04 21:36:35 +02005121 int ie_len = 0;
Johannes Berg19957bb2009-07-02 17:20:43 +02005122 u16 reason_code;
Jouni Malinend5cdfac2010-04-04 09:37:19 +03005123 bool local_state_change;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005124
Johannes Bergf4a11bb2009-03-27 12:40:28 +01005125 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5126 return -EINVAL;
5127
5128 if (!info->attrs[NL80211_ATTR_MAC])
5129 return -EINVAL;
5130
5131 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5132 return -EINVAL;
5133
Johannes Berg4c476992010-10-04 21:36:35 +02005134 if (!rdev->ops->disassoc)
5135 return -EOPNOTSUPP;
Jouni Malinen636a5d32009-03-19 13:39:22 +02005136
Johannes Berg074ac8d2010-09-16 14:58:22 +02005137 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005138 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5139 return -EOPNOTSUPP;
Jouni Malineneec60b02009-03-20 21:21:19 +02005140
Johannes Berg19957bb2009-07-02 17:20:43 +02005141 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005142
Johannes Berg19957bb2009-07-02 17:20:43 +02005143 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5144 if (reason_code == 0) {
Johannes Bergf4a11bb2009-03-27 12:40:28 +01005145 /* Reason Code 0 is reserved */
Johannes Berg4c476992010-10-04 21:36:35 +02005146 return -EINVAL;
Jouni Malinen255e7372009-03-20 21:21:17 +02005147 }
Jouni Malinen636a5d32009-03-19 13:39:22 +02005148
5149 if (info->attrs[NL80211_ATTR_IE]) {
Johannes Berg19957bb2009-07-02 17:20:43 +02005150 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5151 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005152 }
5153
Jouni Malinend5cdfac2010-04-04 09:37:19 +03005154 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5155
Johannes Berg4c476992010-10-04 21:36:35 +02005156 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5157 local_state_change);
Jouni Malinen636a5d32009-03-19 13:39:22 +02005158}
5159
Felix Fietkaudd5b4cc2010-11-22 20:58:24 +01005160static bool
5161nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5162 int mcast_rate[IEEE80211_NUM_BANDS],
5163 int rateval)
5164{
5165 struct wiphy *wiphy = &rdev->wiphy;
5166 bool found = false;
5167 int band, i;
5168
5169 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5170 struct ieee80211_supported_band *sband;
5171
5172 sband = wiphy->bands[band];
5173 if (!sband)
5174 continue;
5175
5176 for (i = 0; i < sband->n_bitrates; i++) {
5177 if (sband->bitrates[i].bitrate == rateval) {
5178 mcast_rate[band] = i + 1;
5179 found = true;
5180 break;
5181 }
5182 }
5183 }
5184
5185 return found;
5186}
5187
Johannes Berg04a773a2009-04-19 21:24:32 +02005188static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5189{
Johannes Berg4c476992010-10-04 21:36:35 +02005190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5191 struct net_device *dev = info->user_ptr[1];
Johannes Berg04a773a2009-04-19 21:24:32 +02005192 struct cfg80211_ibss_params ibss;
5193 struct wiphy *wiphy;
Johannes Bergfffd0932009-07-08 14:22:54 +02005194 struct cfg80211_cached_keys *connkeys = NULL;
Johannes Berg04a773a2009-04-19 21:24:32 +02005195 int err;
5196
Johannes Berg8e30bc52009-04-22 17:45:38 +02005197 memset(&ibss, 0, sizeof(ibss));
5198
Johannes Berg04a773a2009-04-19 21:24:32 +02005199 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5200 return -EINVAL;
5201
5202 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5203 !info->attrs[NL80211_ATTR_SSID] ||
5204 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5205 return -EINVAL;
5206
Johannes Berg8e30bc52009-04-22 17:45:38 +02005207 ibss.beacon_interval = 100;
5208
5209 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5210 ibss.beacon_interval =
5211 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5212 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5213 return -EINVAL;
5214 }
5215
Johannes Berg4c476992010-10-04 21:36:35 +02005216 if (!rdev->ops->join_ibss)
5217 return -EOPNOTSUPP;
Johannes Berg04a773a2009-04-19 21:24:32 +02005218
Johannes Berg4c476992010-10-04 21:36:35 +02005219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5220 return -EOPNOTSUPP;
Johannes Berg04a773a2009-04-19 21:24:32 +02005221
Johannes Berg79c97e92009-07-07 03:56:12 +02005222 wiphy = &rdev->wiphy;
Johannes Berg04a773a2009-04-19 21:24:32 +02005223
Johannes Berg39193492011-09-16 13:45:25 +02005224 if (info->attrs[NL80211_ATTR_MAC]) {
Johannes Berg04a773a2009-04-19 21:24:32 +02005225 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Johannes Berg39193492011-09-16 13:45:25 +02005226
5227 if (!is_valid_ether_addr(ibss.bssid))
5228 return -EINVAL;
5229 }
Johannes Berg04a773a2009-04-19 21:24:32 +02005230 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5231 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5232
5233 if (info->attrs[NL80211_ATTR_IE]) {
5234 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5235 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5236 }
5237
Alexander Simon54858ee2011-11-30 16:56:32 +01005238 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5239 enum nl80211_channel_type channel_type;
5240
5241 channel_type = nla_get_u32(
5242 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5243 if (channel_type != NL80211_CHAN_NO_HT &&
5244 channel_type != NL80211_CHAN_HT20 &&
5245 channel_type != NL80211_CHAN_HT40MINUS &&
5246 channel_type != NL80211_CHAN_HT40PLUS)
5247 return -EINVAL;
5248
5249 if (channel_type != NL80211_CHAN_NO_HT &&
5250 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5251 return -EINVAL;
5252
5253 ibss.channel_type = channel_type;
5254 } else {
5255 ibss.channel_type = NL80211_CHAN_NO_HT;
5256 }
5257
5258 ibss.channel = rdev_freq_to_chan(rdev,
5259 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5260 ibss.channel_type);
Johannes Berg04a773a2009-04-19 21:24:32 +02005261 if (!ibss.channel ||
5262 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
Johannes Berg4c476992010-10-04 21:36:35 +02005263 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5264 return -EINVAL;
Johannes Berg04a773a2009-04-19 21:24:32 +02005265
Alexander Simon54858ee2011-11-30 16:56:32 +01005266 /* Both channels should be able to initiate communication */
5267 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5268 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5269 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5270 ibss.channel_type))
5271 return -EINVAL;
5272
Johannes Berg04a773a2009-04-19 21:24:32 +02005273 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
Johannes Bergfffd0932009-07-08 14:22:54 +02005274 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
Johannes Berg04a773a2009-04-19 21:24:32 +02005275
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +03005276 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5277 u8 *rates =
5278 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5279 int n_rates =
5280 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5281 struct ieee80211_supported_band *sband =
5282 wiphy->bands[ibss.channel->band];
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +03005283
Johannes Berg34850ab2011-07-18 18:08:35 +02005284 err = ieee80211_get_ratemask(sband, rates, n_rates,
5285 &ibss.basic_rates);
5286 if (err)
5287 return err;
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +03005288 }
Felix Fietkaudd5b4cc2010-11-22 20:58:24 +01005289
5290 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5291 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5292 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5293 return -EINVAL;
Teemu Paasikivifbd2c8d2010-06-14 12:55:31 +03005294
Johannes Berg4c476992010-10-04 21:36:35 +02005295 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5296 connkeys = nl80211_parse_connkeys(rdev,
5297 info->attrs[NL80211_ATTR_KEYS]);
5298 if (IS_ERR(connkeys))
5299 return PTR_ERR(connkeys);
5300 }
Johannes Berg04a773a2009-04-19 21:24:32 +02005301
Antonio Quartulli267335d2012-01-31 20:25:47 +01005302 ibss.control_port =
5303 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5304
Johannes Berg4c476992010-10-04 21:36:35 +02005305 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
Johannes Bergfffd0932009-07-08 14:22:54 +02005306 if (err)
5307 kfree(connkeys);
Johannes Berg04a773a2009-04-19 21:24:32 +02005308 return err;
5309}
5310
5311static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5312{
Johannes Berg4c476992010-10-04 21:36:35 +02005313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5314 struct net_device *dev = info->user_ptr[1];
Johannes Berg04a773a2009-04-19 21:24:32 +02005315
Johannes Berg4c476992010-10-04 21:36:35 +02005316 if (!rdev->ops->leave_ibss)
5317 return -EOPNOTSUPP;
Johannes Berg04a773a2009-04-19 21:24:32 +02005318
Johannes Berg4c476992010-10-04 21:36:35 +02005319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5320 return -EOPNOTSUPP;
Johannes Berg04a773a2009-04-19 21:24:32 +02005321
Johannes Berg4c476992010-10-04 21:36:35 +02005322 return cfg80211_leave_ibss(rdev, dev, false);
Johannes Berg04a773a2009-04-19 21:24:32 +02005323}
5324
Leo Chang21b770c2014-01-15 19:22:28 -08005325static struct sk_buff *
5326__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
5327 int approxlen, u32 portid, u32 seq,
5328 enum nl80211_commands cmd,
Leo Changd87d6262014-01-15 19:52:00 -08005329 enum nl80211_attrs attr,
5330 const struct nl80211_vendor_cmd_info *info,
5331 gfp_t gfp)
Leo Chang21b770c2014-01-15 19:22:28 -08005332{
5333 struct sk_buff *skb;
5334 void *hdr;
5335 struct nlattr *data;
5336
5337 skb = nlmsg_new(approxlen + 100, gfp);
5338 if (!skb)
5339 return NULL;
5340
5341 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
5342 if (!hdr) {
5343 kfree_skb(skb);
5344 return NULL;
5345 }
5346
5347 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5348 goto nla_put_failure;
Leo Changd87d6262014-01-15 19:52:00 -08005349
5350 if (info) {
5351 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
5352 info->vendor_id))
5353 goto nla_put_failure;
5354 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
5355 info->subcmd))
5356 goto nla_put_failure;
5357 }
5358
Leo Chang21b770c2014-01-15 19:22:28 -08005359 data = nla_nest_start(skb, attr);
5360
5361 ((void **)skb->cb)[0] = rdev;
5362 ((void **)skb->cb)[1] = hdr;
5363 ((void **)skb->cb)[2] = data;
5364
5365 return skb;
5366
5367 nla_put_failure:
5368 kfree_skb(skb);
5369 return NULL;
5370}
5371
Leo Changd87d6262014-01-15 19:52:00 -08005372static struct genl_multicast_group nl80211_vendor_mcgrp = {
5373 .name = "vendor",
5374};
5375
Johannes Bergaff89a92009-07-01 21:26:51 +02005376#ifdef CONFIG_NL80211_TESTMODE
5377static struct genl_multicast_group nl80211_testmode_mcgrp = {
5378 .name = "testmode",
5379};
5380
5381static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5382{
Johannes Berg4c476992010-10-04 21:36:35 +02005383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Bergaff89a92009-07-01 21:26:51 +02005384 int err;
5385
5386 if (!info->attrs[NL80211_ATTR_TESTDATA])
5387 return -EINVAL;
5388
Johannes Bergaff89a92009-07-01 21:26:51 +02005389 err = -EOPNOTSUPP;
5390 if (rdev->ops->testmode_cmd) {
Leo Chang21b770c2014-01-15 19:22:28 -08005391 rdev->cur_cmd_info = info;
Johannes Bergaff89a92009-07-01 21:26:51 +02005392 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5393 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5394 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
Leo Chang21b770c2014-01-15 19:22:28 -08005395 rdev->cur_cmd_info = NULL;
Johannes Bergaff89a92009-07-01 21:26:51 +02005396 }
5397
Johannes Bergaff89a92009-07-01 21:26:51 +02005398 return err;
5399}
5400
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005401static int nl80211_testmode_dump(struct sk_buff *skb,
5402 struct netlink_callback *cb)
5403{
Johannes Berg00918d32011-12-13 17:22:05 +01005404 struct cfg80211_registered_device *rdev;
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005405 int err;
5406 long phy_idx;
5407 void *data = NULL;
5408 int data_len = 0;
5409
5410 if (cb->args[0]) {
5411 /*
5412 * 0 is a valid index, but not valid for args[0],
5413 * so we need to offset by 1.
5414 */
5415 phy_idx = cb->args[0] - 1;
5416 } else {
5417 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5418 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5419 nl80211_policy);
5420 if (err)
5421 return err;
Johannes Berg00918d32011-12-13 17:22:05 +01005422 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
5423 phy_idx = nla_get_u32(
5424 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
5425 } else {
5426 struct net_device *netdev;
5427
5428 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
5429 nl80211_fam.attrbuf,
5430 &rdev, &netdev);
5431 if (err)
5432 return err;
5433 dev_put(netdev);
5434 phy_idx = rdev->wiphy_idx;
5435 cfg80211_unlock_rdev(rdev);
5436 }
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005437 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5438 cb->args[1] =
5439 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5440 }
5441
5442 if (cb->args[1]) {
5443 data = nla_data((void *)cb->args[1]);
5444 data_len = nla_len((void *)cb->args[1]);
5445 }
5446
5447 mutex_lock(&cfg80211_mutex);
Johannes Berg00918d32011-12-13 17:22:05 +01005448 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5449 if (!rdev) {
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005450 mutex_unlock(&cfg80211_mutex);
5451 return -ENOENT;
5452 }
Johannes Berg00918d32011-12-13 17:22:05 +01005453 cfg80211_lock_rdev(rdev);
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005454 mutex_unlock(&cfg80211_mutex);
5455
Johannes Berg00918d32011-12-13 17:22:05 +01005456 if (!rdev->ops->testmode_dump) {
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005457 err = -EOPNOTSUPP;
5458 goto out_err;
5459 }
5460
5461 while (1) {
5462 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5463 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5464 NL80211_CMD_TESTMODE);
5465 struct nlattr *tmdata;
5466
Dan Carpenter367c2a12013-08-14 11:50:01 +00005467 if (!hdr)
5468 break;
5469
Johannes Berg00918d32011-12-13 17:22:05 +01005470 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005471 genlmsg_cancel(skb, hdr);
5472 break;
5473 }
5474
5475 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5476 if (!tmdata) {
5477 genlmsg_cancel(skb, hdr);
5478 break;
5479 }
Johannes Berg00918d32011-12-13 17:22:05 +01005480 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5481 data, data_len);
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005482 nla_nest_end(skb, tmdata);
5483
5484 if (err == -ENOBUFS || err == -ENOENT) {
5485 genlmsg_cancel(skb, hdr);
5486 break;
5487 } else if (err) {
5488 genlmsg_cancel(skb, hdr);
5489 goto out_err;
5490 }
5491
5492 genlmsg_end(skb, hdr);
5493 }
5494
5495 err = skb->len;
5496 /* see above */
5497 cb->args[0] = phy_idx + 1;
5498 out_err:
Johannes Berg00918d32011-12-13 17:22:05 +01005499 cfg80211_unlock_rdev(rdev);
Wey-Yi Guy71063f02011-05-20 09:05:54 -07005500 return err;
5501}
5502
Johannes Berga62c3d72014-01-01 17:22:30 +01005503#endif
5504
Leo Changd87d6262014-01-15 19:52:00 -08005505struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
5506 enum nl80211_commands cmd,
5507 enum nl80211_attrs attr,
5508 int vendor_event_idx,
5509 int approxlen, gfp_t gfp)
Johannes Bergaff89a92009-07-01 21:26:51 +02005510{
5511 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
Leo Changd87d6262014-01-15 19:52:00 -08005512 const struct nl80211_vendor_cmd_info *info;
Johannes Bergaff89a92009-07-01 21:26:51 +02005513
Leo Changd87d6262014-01-15 19:52:00 -08005514 switch (cmd) {
5515 case NL80211_CMD_TESTMODE:
5516 if (WARN_ON(vendor_event_idx != -1))
5517 return NULL;
5518 info = NULL;
5519 break;
5520 case NL80211_CMD_VENDOR:
5521 if (WARN_ON(vendor_event_idx < 0 ||
5522 vendor_event_idx >= wiphy->n_vendor_events))
5523 return NULL;
5524 info = &wiphy->vendor_events[vendor_event_idx];
5525 break;
5526 default:
5527 WARN_ON(1);
5528 return NULL;
5529 }
Leo Chang21b770c2014-01-15 19:22:28 -08005530 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
Leo Changd87d6262014-01-15 19:52:00 -08005531 cmd, attr, info, gfp);
Johannes Bergaff89a92009-07-01 21:26:51 +02005532}
Leo Changd87d6262014-01-15 19:52:00 -08005533EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
Johannes Bergaff89a92009-07-01 21:26:51 +02005534
Leo Changd87d6262014-01-15 19:52:00 -08005535void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
Johannes Bergaff89a92009-07-01 21:26:51 +02005536{
Leo Changd87d6262014-01-15 19:52:00 -08005537 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
Johannes Bergaff89a92009-07-01 21:26:51 +02005538 void *hdr = ((void **)skb->cb)[1];
5539 struct nlattr *data = ((void **)skb->cb)[2];
5540
Johannes Berg270e2032014-07-30 14:55:26 +02005541 /* clear CB data for netlink core to own from now on */
5542 memset(skb->cb, 0, sizeof(skb->cb));
5543
Johannes Bergaff89a92009-07-01 21:26:51 +02005544 nla_nest_end(skb, data);
5545 genlmsg_end(skb, hdr);
Leo Changd87d6262014-01-15 19:52:00 -08005546
5547 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
5548 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
5549 nl80211_vendor_mcgrp.id, gfp);
5550 else
5551 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
5552 nl80211_testmode_mcgrp.id, gfp);
Johannes Bergaff89a92009-07-01 21:26:51 +02005553}
Leo Changd87d6262014-01-15 19:52:00 -08005554EXPORT_SYMBOL(__cfg80211_send_event_skb);
Johannes Berga62c3d72014-01-01 17:22:30 +01005555
Johannes Bergaff89a92009-07-01 21:26:51 +02005556
Samuel Ortizb23aa672009-07-01 21:26:54 +02005557static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5558{
Johannes Berg4c476992010-10-04 21:36:35 +02005559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5560 struct net_device *dev = info->user_ptr[1];
Samuel Ortizb23aa672009-07-01 21:26:54 +02005561 struct cfg80211_connect_params connect;
5562 struct wiphy *wiphy;
Johannes Bergfffd0932009-07-08 14:22:54 +02005563 struct cfg80211_cached_keys *connkeys = NULL;
Samuel Ortizb23aa672009-07-01 21:26:54 +02005564 int err;
5565
5566 memset(&connect, 0, sizeof(connect));
5567
5568 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5569 return -EINVAL;
5570
5571 if (!info->attrs[NL80211_ATTR_SSID] ||
5572 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5573 return -EINVAL;
5574
5575 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5576 connect.auth_type =
5577 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5578 if (!nl80211_valid_auth_type(connect.auth_type))
5579 return -EINVAL;
5580 } else
5581 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5582
5583 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5584
Johannes Bergc0692b82010-08-27 14:26:53 +03005585 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
Johannes Berg3dc27d22009-07-02 21:36:37 +02005586 NL80211_MAX_NR_CIPHER_SUITES);
Samuel Ortizb23aa672009-07-01 21:26:54 +02005587 if (err)
5588 return err;
Samuel Ortizb23aa672009-07-01 21:26:54 +02005589
Johannes Berg074ac8d2010-09-16 14:58:22 +02005590 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5592 return -EOPNOTSUPP;
Samuel Ortizb23aa672009-07-01 21:26:54 +02005593
Johannes Berg79c97e92009-07-07 03:56:12 +02005594 wiphy = &rdev->wiphy;
Samuel Ortizb23aa672009-07-01 21:26:54 +02005595
Bala Shanmugam4486ea92012-03-07 17:27:12 +05305596 connect.bg_scan_period = -1;
5597 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5598 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5599 connect.bg_scan_period =
5600 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5601 }
5602
Samuel Ortizb23aa672009-07-01 21:26:54 +02005603 if (info->attrs[NL80211_ATTR_MAC])
5604 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
Jouni Malinen86997442014-04-17 22:49:32 +05305605 else if (info->attrs[NL80211_ATTR_MAC_HINT])
5606 connect.bssid_hint =
5607 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
Samuel Ortizb23aa672009-07-01 21:26:54 +02005608 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5609 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5610
5611 if (info->attrs[NL80211_ATTR_IE]) {
5612 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5613 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5614 }
5615
Jouni Malinen7e73ad52013-01-15 15:15:57 +00005616 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5617 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5618 if (connect.mfp != NL80211_MFP_REQUIRED &&
5619 connect.mfp != NL80211_MFP_NO)
5620 return -EINVAL;
5621 } else {
5622 connect.mfp = NL80211_MFP_NO;
5623 }
5624
Samuel Ortizb23aa672009-07-01 21:26:54 +02005625 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5626 connect.channel =
5627 ieee80211_get_channel(wiphy,
5628 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5629 if (!connect.channel ||
Johannes Berg4c476992010-10-04 21:36:35 +02005630 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5631 return -EINVAL;
Jouni Malinen86997442014-04-17 22:49:32 +05305632 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
5633 connect.channel_hint =
5634 ieee80211_get_channel(wiphy,
5635 nla_get_u32(
5636 info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]));
5637 if (!connect.channel_hint ||
5638 connect.channel_hint->flags & IEEE80211_CHAN_DISABLED)
5639 return -EINVAL;
Samuel Ortizb23aa672009-07-01 21:26:54 +02005640 }
5641
Johannes Bergfffd0932009-07-08 14:22:54 +02005642 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5643 connkeys = nl80211_parse_connkeys(rdev,
5644 info->attrs[NL80211_ATTR_KEYS]);
Johannes Berg4c476992010-10-04 21:36:35 +02005645 if (IS_ERR(connkeys))
5646 return PTR_ERR(connkeys);
Johannes Bergfffd0932009-07-08 14:22:54 +02005647 }
5648
Ben Greear7e7c8922011-11-18 11:31:59 -08005649 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5650 connect.flags |= ASSOC_REQ_DISABLE_HT;
5651
5652 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5653 memcpy(&connect.ht_capa_mask,
5654 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5655 sizeof(connect.ht_capa_mask));
5656
5657 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5658 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5659 return -EINVAL;
5660 memcpy(&connect.ht_capa,
5661 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5662 sizeof(connect.ht_capa));
5663 }
5664
Johannes Bergfffd0932009-07-08 14:22:54 +02005665 err = cfg80211_connect(rdev, dev, &connect, connkeys);
Johannes Bergfffd0932009-07-08 14:22:54 +02005666 if (err)
5667 kfree(connkeys);
Samuel Ortizb23aa672009-07-01 21:26:54 +02005668 return err;
5669}
5670
5671static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5672{
Johannes Berg4c476992010-10-04 21:36:35 +02005673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5674 struct net_device *dev = info->user_ptr[1];
Samuel Ortizb23aa672009-07-01 21:26:54 +02005675 u16 reason;
5676
5677 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5678 reason = WLAN_REASON_DEAUTH_LEAVING;
5679 else
5680 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5681
5682 if (reason == 0)
5683 return -EINVAL;
5684
Johannes Berg074ac8d2010-09-16 14:58:22 +02005685 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005686 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5687 return -EOPNOTSUPP;
Samuel Ortizb23aa672009-07-01 21:26:54 +02005688
Johannes Berg4c476992010-10-04 21:36:35 +02005689 return cfg80211_disconnect(rdev, dev, reason, true);
Samuel Ortizb23aa672009-07-01 21:26:54 +02005690}
5691
Johannes Berg463d0182009-07-14 00:33:35 +02005692static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5693{
Johannes Berg4c476992010-10-04 21:36:35 +02005694 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Johannes Berg463d0182009-07-14 00:33:35 +02005695 struct net *net;
5696 int err;
5697 u32 pid;
5698
5699 if (!info->attrs[NL80211_ATTR_PID])
5700 return -EINVAL;
5701
5702 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5703
Johannes Berg463d0182009-07-14 00:33:35 +02005704 net = get_net_ns_by_pid(pid);
Johannes Berg4c476992010-10-04 21:36:35 +02005705 if (IS_ERR(net))
5706 return PTR_ERR(net);
Johannes Berg463d0182009-07-14 00:33:35 +02005707
5708 err = 0;
5709
5710 /* check if anything to do */
Johannes Berg4c476992010-10-04 21:36:35 +02005711 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5712 err = cfg80211_switch_netns(rdev, net);
Johannes Berg463d0182009-07-14 00:33:35 +02005713
Johannes Berg463d0182009-07-14 00:33:35 +02005714 put_net(net);
Johannes Berg463d0182009-07-14 00:33:35 +02005715 return err;
5716}
5717
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005718static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5719{
Johannes Berg4c476992010-10-04 21:36:35 +02005720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005721 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5722 struct cfg80211_pmksa *pmksa) = NULL;
Johannes Berg4c476992010-10-04 21:36:35 +02005723 struct net_device *dev = info->user_ptr[1];
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005724 struct cfg80211_pmksa pmksa;
5725
5726 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5727
5728 if (!info->attrs[NL80211_ATTR_MAC])
5729 return -EINVAL;
5730
5731 if (!info->attrs[NL80211_ATTR_PMKID])
5732 return -EINVAL;
5733
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005734 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5735 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5736
Johannes Berg074ac8d2010-09-16 14:58:22 +02005737 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005738 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5739 return -EOPNOTSUPP;
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005740
5741 switch (info->genlhdr->cmd) {
5742 case NL80211_CMD_SET_PMKSA:
5743 rdev_ops = rdev->ops->set_pmksa;
5744 break;
5745 case NL80211_CMD_DEL_PMKSA:
5746 rdev_ops = rdev->ops->del_pmksa;
5747 break;
5748 default:
5749 WARN_ON(1);
5750 break;
5751 }
5752
Johannes Berg4c476992010-10-04 21:36:35 +02005753 if (!rdev_ops)
5754 return -EOPNOTSUPP;
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005755
Johannes Berg4c476992010-10-04 21:36:35 +02005756 return rdev_ops(&rdev->wiphy, dev, &pmksa);
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005757}
5758
5759static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5760{
Johannes Berg4c476992010-10-04 21:36:35 +02005761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5762 struct net_device *dev = info->user_ptr[1];
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005763
Johannes Berg074ac8d2010-09-16 14:58:22 +02005764 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02005765 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5766 return -EOPNOTSUPP;
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005767
Johannes Berg4c476992010-10-04 21:36:35 +02005768 if (!rdev->ops->flush_pmksa)
5769 return -EOPNOTSUPP;
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005770
Johannes Berg4c476992010-10-04 21:36:35 +02005771 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
Samuel Ortiz67fbb162009-11-24 23:59:15 +01005772}
5773
Arik Nemtsov109086c2011-09-28 14:12:50 +03005774static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5775{
5776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5777 struct net_device *dev = info->user_ptr[1];
5778 u8 action_code, dialog_token;
Sunil Dutt3db727f2014-04-17 23:15:25 +05305779 u32 peer_capability = 0;
Arik Nemtsov109086c2011-09-28 14:12:50 +03005780 u16 status_code;
5781 u8 *peer;
5782
5783 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5784 !rdev->ops->tdls_mgmt)
5785 return -EOPNOTSUPP;
5786
5787 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5788 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5789 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5790 !info->attrs[NL80211_ATTR_IE] ||
5791 !info->attrs[NL80211_ATTR_MAC])
5792 return -EINVAL;
5793
5794 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5795 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5796 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5797 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
Sunil Dutt3db727f2014-04-17 23:15:25 +05305798 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
5799 peer_capability =
5800 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
Arik Nemtsov109086c2011-09-28 14:12:50 +03005801
5802 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
Sunil Dutt3db727f2014-04-17 23:15:25 +05305803 dialog_token, status_code, peer_capability,
Arik Nemtsov109086c2011-09-28 14:12:50 +03005804 nla_data(info->attrs[NL80211_ATTR_IE]),
5805 nla_len(info->attrs[NL80211_ATTR_IE]));
5806}
5807
5808static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5809{
5810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5811 struct net_device *dev = info->user_ptr[1];
5812 enum nl80211_tdls_operation operation;
5813 u8 *peer;
5814
5815 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5816 !rdev->ops->tdls_oper)
5817 return -EOPNOTSUPP;
5818
5819 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5820 !info->attrs[NL80211_ATTR_MAC])
5821 return -EINVAL;
5822
5823 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5824 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5825
5826 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5827}
5828
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005829static int nl80211_remain_on_channel(struct sk_buff *skb,
5830 struct genl_info *info)
5831{
Johannes Berg4c476992010-10-04 21:36:35 +02005832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5833 struct net_device *dev = info->user_ptr[1];
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005834 struct ieee80211_channel *chan;
5835 struct sk_buff *msg;
5836 void *hdr;
5837 u64 cookie;
5838 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5839 u32 freq, duration;
5840 int err;
5841
5842 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5843 !info->attrs[NL80211_ATTR_DURATION])
5844 return -EINVAL;
5845
5846 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5847
5848 /*
5849 * We should be on that channel for at least one jiffie,
5850 * and more than 5 seconds seems excessive.
5851 */
Johannes Berga2939112010-12-14 17:54:28 +01005852 if (!duration || !msecs_to_jiffies(duration) ||
5853 duration > rdev->wiphy.max_remain_on_channel_duration)
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005854 return -EINVAL;
5855
Johannes Berg7c4ef712011-11-18 15:33:48 +01005856 if (!rdev->ops->remain_on_channel ||
5857 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
Johannes Berg4c476992010-10-04 21:36:35 +02005858 return -EOPNOTSUPP;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005859
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005860 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5861 channel_type = nla_get_u32(
5862 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5863 if (channel_type != NL80211_CHAN_NO_HT &&
5864 channel_type != NL80211_CHAN_HT20 &&
5865 channel_type != NL80211_CHAN_HT40PLUS &&
Johannes Berg4c476992010-10-04 21:36:35 +02005866 channel_type != NL80211_CHAN_HT40MINUS)
5867 return -EINVAL;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005868 }
5869
5870 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5871 chan = rdev_freq_to_chan(rdev, freq, channel_type);
Johannes Berg4c476992010-10-04 21:36:35 +02005872 if (chan == NULL)
5873 return -EINVAL;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005874
5875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg4c476992010-10-04 21:36:35 +02005876 if (!msg)
5877 return -ENOMEM;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005878
5879 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5880 NL80211_CMD_REMAIN_ON_CHANNEL);
Dan Carpenter367c2a12013-08-14 11:50:01 +00005881 if (!hdr) {
5882 err = -ENOBUFS;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005883 goto free_msg;
5884 }
5885
5886 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5887 channel_type, duration, &cookie);
5888
5889 if (err)
5890 goto free_msg;
5891
5892 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5893
5894 genlmsg_end(msg, hdr);
Johannes Berg4c476992010-10-04 21:36:35 +02005895
5896 return genlmsg_reply(msg, info);
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005897
5898 nla_put_failure:
5899 err = -ENOBUFS;
5900 free_msg:
5901 nlmsg_free(msg);
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005902 return err;
5903}
5904
5905static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5906 struct genl_info *info)
5907{
Johannes Berg4c476992010-10-04 21:36:35 +02005908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5909 struct net_device *dev = info->user_ptr[1];
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005910 u64 cookie;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005911
5912 if (!info->attrs[NL80211_ATTR_COOKIE])
5913 return -EINVAL;
5914
Johannes Berg4c476992010-10-04 21:36:35 +02005915 if (!rdev->ops->cancel_remain_on_channel)
5916 return -EOPNOTSUPP;
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005917
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005918 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5919
Johannes Berg4c476992010-10-04 21:36:35 +02005920 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
Jouni Malinen9588bbd2009-12-23 13:15:41 +01005921}
5922
Jouni Malinen13ae75b2009-12-29 12:59:45 +02005923static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5924 u8 *rates, u8 rates_len)
5925{
5926 u8 i;
5927 u32 mask = 0;
5928
5929 for (i = 0; i < rates_len; i++) {
5930 int rate = (rates[i] & 0x7f) * 5;
5931 int ridx;
5932 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5933 struct ieee80211_rate *srate =
5934 &sband->bitrates[ridx];
5935 if (rate == srate->bitrate) {
5936 mask |= 1 << ridx;
5937 break;
5938 }
5939 }
5940 if (ridx == sband->n_bitrates)
5941 return 0; /* rate not found */
5942 }
5943
5944 return mask;
5945}
5946
Simon Wunderlich24db78c2012-01-28 17:25:32 +01005947static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5948 u8 *rates, u8 rates_len,
5949 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5950{
5951 u8 i;
5952
5953 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5954
5955 for (i = 0; i < rates_len; i++) {
5956 int ridx, rbit;
5957
5958 ridx = rates[i] / 8;
5959 rbit = BIT(rates[i] % 8);
5960
5961 /* check validity */
Dan Carpenter910570b2012-02-01 10:42:11 +03005962 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
Simon Wunderlich24db78c2012-01-28 17:25:32 +01005963 return false;
5964
5965 /* check availability */
5966 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5967 mcs[ridx] |= rbit;
5968 else
5969 return false;
5970 }
5971
5972 return true;
5973}
5974
Alexey Dobriyanb54452b2010-02-18 08:14:31 +00005975static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
Jouni Malinen13ae75b2009-12-29 12:59:45 +02005976 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5977 .len = NL80211_MAX_SUPP_RATES },
Simon Wunderlich24db78c2012-01-28 17:25:32 +01005978 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5979 .len = NL80211_MAX_SUPP_HT_RATES },
Jouni Malinen13ae75b2009-12-29 12:59:45 +02005980};
5981
5982static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5983 struct genl_info *info)
5984{
5985 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
Johannes Berg4c476992010-10-04 21:36:35 +02005986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Jouni Malinen13ae75b2009-12-29 12:59:45 +02005987 struct cfg80211_bitrate_mask mask;
Johannes Berg4c476992010-10-04 21:36:35 +02005988 int rem, i;
5989 struct net_device *dev = info->user_ptr[1];
Jouni Malinen13ae75b2009-12-29 12:59:45 +02005990 struct nlattr *tx_rates;
5991 struct ieee80211_supported_band *sband;
5992
5993 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5994 return -EINVAL;
5995
Johannes Berg4c476992010-10-04 21:36:35 +02005996 if (!rdev->ops->set_bitrate_mask)
5997 return -EOPNOTSUPP;
Jouni Malinen13ae75b2009-12-29 12:59:45 +02005998
5999 memset(&mask, 0, sizeof(mask));
6000 /* Default to all rates enabled */
6001 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6002 sband = rdev->wiphy.bands[i];
6003 mask.control[i].legacy =
6004 sband ? (1 << sband->n_bitrates) - 1 : 0;
Simon Wunderlich24db78c2012-01-28 17:25:32 +01006005 if (sband)
6006 memcpy(mask.control[i].mcs,
6007 sband->ht_cap.mcs.rx_mask,
6008 sizeof(mask.control[i].mcs));
6009 else
6010 memset(mask.control[i].mcs, 0,
6011 sizeof(mask.control[i].mcs));
Jouni Malinen13ae75b2009-12-29 12:59:45 +02006012 }
6013
6014 /*
6015 * The nested attribute uses enum nl80211_band as the index. This maps
6016 * directly to the enum ieee80211_band values used in cfg80211.
6017 */
Simon Wunderlich24db78c2012-01-28 17:25:32 +01006018 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
Jouni Malinen13ae75b2009-12-29 12:59:45 +02006019 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6020 {
6021 enum ieee80211_band band = nla_type(tx_rates);
Johannes Berg4c476992010-10-04 21:36:35 +02006022 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6023 return -EINVAL;
Jouni Malinen13ae75b2009-12-29 12:59:45 +02006024 sband = rdev->wiphy.bands[band];
Johannes Berg4c476992010-10-04 21:36:35 +02006025 if (sband == NULL)
6026 return -EINVAL;
Jouni Malinen13ae75b2009-12-29 12:59:45 +02006027 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6028 nla_len(tx_rates), nl80211_txattr_policy);
6029 if (tb[NL80211_TXRATE_LEGACY]) {
6030 mask.control[band].legacy = rateset_to_mask(
6031 sband,
6032 nla_data(tb[NL80211_TXRATE_LEGACY]),
6033 nla_len(tb[NL80211_TXRATE_LEGACY]));
Simon Wunderlich24db78c2012-01-28 17:25:32 +01006034 }
6035 if (tb[NL80211_TXRATE_MCS]) {
6036 if (!ht_rateset_to_mask(
6037 sband,
6038 nla_data(tb[NL80211_TXRATE_MCS]),
6039 nla_len(tb[NL80211_TXRATE_MCS]),
6040 mask.control[band].mcs))
6041 return -EINVAL;
6042 }
6043
6044 if (mask.control[band].legacy == 0) {
6045 /* don't allow empty legacy rates if HT
6046 * is not even supported. */
6047 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6048 return -EINVAL;
6049
6050 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6051 if (mask.control[band].mcs[i])
6052 break;
6053
6054 /* legacy and mcs rates may not be both empty */
6055 if (i == IEEE80211_HT_MCS_MASK_LEN)
Johannes Berg4c476992010-10-04 21:36:35 +02006056 return -EINVAL;
Jouni Malinen13ae75b2009-12-29 12:59:45 +02006057 }
6058 }
6059
Johannes Berg4c476992010-10-04 21:36:35 +02006060 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
Jouni Malinen13ae75b2009-12-29 12:59:45 +02006061}
6062
Johannes Berg2e161f72010-08-12 15:38:38 +02006063static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
Jouni Malinen026331c2010-02-15 12:53:10 +02006064{
Johannes Berg4c476992010-10-04 21:36:35 +02006065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6066 struct net_device *dev = info->user_ptr[1];
Johannes Berg2e161f72010-08-12 15:38:38 +02006067 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
Jouni Malinen026331c2010-02-15 12:53:10 +02006068
6069 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6070 return -EINVAL;
6071
Johannes Berg2e161f72010-08-12 15:38:38 +02006072 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6073 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
Jouni Malinen026331c2010-02-15 12:53:10 +02006074
Johannes Berg9d38d852010-06-09 17:20:33 +02006075 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg074ac8d2010-09-16 14:58:22 +02006076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
Johannes Berg663fcaf2010-09-30 21:06:09 +02006077 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6079 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
Javier Cardonac7108a72010-12-16 17:37:50 -08006080 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
Johannes Berg4c476992010-10-04 21:36:35 +02006081 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6082 return -EOPNOTSUPP;
Jouni Malinen026331c2010-02-15 12:53:10 +02006083
6084 /* not much point in registering if we can't reply */
Johannes Berg4c476992010-10-04 21:36:35 +02006085 if (!rdev->ops->mgmt_tx)
6086 return -EOPNOTSUPP;
Jouni Malinen026331c2010-02-15 12:53:10 +02006087
Johannes Berg4c476992010-10-04 21:36:35 +02006088 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
Johannes Berg2e161f72010-08-12 15:38:38 +02006089 frame_type,
Jouni Malinen026331c2010-02-15 12:53:10 +02006090 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6091 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
Jouni Malinen026331c2010-02-15 12:53:10 +02006092}
6093
Johannes Berg2e161f72010-08-12 15:38:38 +02006094static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
Jouni Malinen026331c2010-02-15 12:53:10 +02006095{
Johannes Berg4c476992010-10-04 21:36:35 +02006096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6097 struct net_device *dev = info->user_ptr[1];
Jouni Malinen026331c2010-02-15 12:53:10 +02006098 struct ieee80211_channel *chan;
6099 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
Johannes Berg252aa632010-05-19 12:17:12 +02006100 bool channel_type_valid = false;
Jouni Malinen026331c2010-02-15 12:53:10 +02006101 u32 freq;
6102 int err;
Johannes Bergd64d3732011-11-10 09:44:46 +01006103 void *hdr = NULL;
Jouni Malinen026331c2010-02-15 12:53:10 +02006104 u64 cookie;
Johannes Berge247bd902011-11-04 11:18:21 +01006105 struct sk_buff *msg = NULL;
Johannes Bergf7ca38d2010-11-25 10:02:29 +01006106 unsigned int wait = 0;
Johannes Berge247bd902011-11-04 11:18:21 +01006107 bool offchan, no_cck, dont_wait_for_ack;
6108
6109 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
Jouni Malinen026331c2010-02-15 12:53:10 +02006110
6111 if (!info->attrs[NL80211_ATTR_FRAME] ||
6112 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6113 return -EINVAL;
6114
Johannes Berg4c476992010-10-04 21:36:35 +02006115 if (!rdev->ops->mgmt_tx)
6116 return -EOPNOTSUPP;
Jouni Malinen026331c2010-02-15 12:53:10 +02006117
Johannes Berg9d38d852010-06-09 17:20:33 +02006118 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg074ac8d2010-09-16 14:58:22 +02006119 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
Johannes Berg663fcaf2010-09-30 21:06:09 +02006120 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6121 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6122 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
Javier Cardonac7108a72010-12-16 17:37:50 -08006123 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
Johannes Berg4c476992010-10-04 21:36:35 +02006124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6125 return -EOPNOTSUPP;
Jouni Malinen026331c2010-02-15 12:53:10 +02006126
Johannes Bergf7ca38d2010-11-25 10:02:29 +01006127 if (info->attrs[NL80211_ATTR_DURATION]) {
Johannes Berg7c4ef712011-11-18 15:33:48 +01006128 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
Johannes Bergf7ca38d2010-11-25 10:02:29 +01006129 return -EINVAL;
6130 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6131 }
6132
Jouni Malinen026331c2010-02-15 12:53:10 +02006133 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6134 channel_type = nla_get_u32(
6135 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
6136 if (channel_type != NL80211_CHAN_NO_HT &&
6137 channel_type != NL80211_CHAN_HT20 &&
6138 channel_type != NL80211_CHAN_HT40PLUS &&
Johannes Berg4c476992010-10-04 21:36:35 +02006139 channel_type != NL80211_CHAN_HT40MINUS)
6140 return -EINVAL;
Johannes Berg252aa632010-05-19 12:17:12 +02006141 channel_type_valid = true;
Jouni Malinen026331c2010-02-15 12:53:10 +02006142 }
6143
Johannes Bergf7ca38d2010-11-25 10:02:29 +01006144 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6145
Johannes Berg7c4ef712011-11-18 15:33:48 +01006146 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6147 return -EINVAL;
6148
Rajkumar Manoharane9f935e2011-09-25 14:53:30 +05306149 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6150
Jouni Malinen026331c2010-02-15 12:53:10 +02006151 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6152 chan = rdev_freq_to_chan(rdev, freq, channel_type);
Johannes Berg4c476992010-10-04 21:36:35 +02006153 if (chan == NULL)
6154 return -EINVAL;
Jouni Malinen026331c2010-02-15 12:53:10 +02006155
Johannes Berge247bd902011-11-04 11:18:21 +01006156 if (!dont_wait_for_ack) {
6157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6158 if (!msg)
6159 return -ENOMEM;
Jouni Malinen026331c2010-02-15 12:53:10 +02006160
Johannes Berge247bd902011-11-04 11:18:21 +01006161 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6162 NL80211_CMD_FRAME);
Dan Carpenter367c2a12013-08-14 11:50:01 +00006163 if (!hdr) {
6164 err = -ENOBUFS;
Johannes Berge247bd902011-11-04 11:18:21 +01006165 goto free_msg;
6166 }
Jouni Malinen026331c2010-02-15 12:53:10 +02006167 }
Johannes Berge247bd902011-11-04 11:18:21 +01006168
Johannes Bergf7ca38d2010-11-25 10:02:29 +01006169 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6170 channel_type_valid, wait,
Johannes Berg2e161f72010-08-12 15:38:38 +02006171 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6172 nla_len(info->attrs[NL80211_ATTR_FRAME]),
Johannes Berge247bd902011-11-04 11:18:21 +01006173 no_cck, dont_wait_for_ack, &cookie);
Jouni Malinen026331c2010-02-15 12:53:10 +02006174 if (err)
6175 goto free_msg;
6176
Johannes Berge247bd902011-11-04 11:18:21 +01006177 if (msg) {
6178 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
Jouni Malinen026331c2010-02-15 12:53:10 +02006179
Johannes Berge247bd902011-11-04 11:18:21 +01006180 genlmsg_end(msg, hdr);
6181 return genlmsg_reply(msg, info);
6182 }
6183
6184 return 0;
Jouni Malinen026331c2010-02-15 12:53:10 +02006185
6186 nla_put_failure:
6187 err = -ENOBUFS;
6188 free_msg:
6189 nlmsg_free(msg);
Jouni Malinen026331c2010-02-15 12:53:10 +02006190 return err;
6191}
6192
Johannes Bergf7ca38d2010-11-25 10:02:29 +01006193static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6194{
6195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6196 struct net_device *dev = info->user_ptr[1];
6197 u64 cookie;
6198
6199 if (!info->attrs[NL80211_ATTR_COOKIE])
6200 return -EINVAL;
6201
6202 if (!rdev->ops->mgmt_tx_cancel_wait)
6203 return -EOPNOTSUPP;
6204
6205 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6206 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6207 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6209 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6210 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6211 return -EOPNOTSUPP;
6212
6213 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6214
6215 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6216}
6217
Kalle Valoffb9eb32010-02-17 17:58:10 +02006218static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6219{
Johannes Berg4c476992010-10-04 21:36:35 +02006220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Kalle Valoffb9eb32010-02-17 17:58:10 +02006221 struct wireless_dev *wdev;
Johannes Berg4c476992010-10-04 21:36:35 +02006222 struct net_device *dev = info->user_ptr[1];
Kalle Valoffb9eb32010-02-17 17:58:10 +02006223 u8 ps_state;
6224 bool state;
6225 int err;
6226
Johannes Berg4c476992010-10-04 21:36:35 +02006227 if (!info->attrs[NL80211_ATTR_PS_STATE])
6228 return -EINVAL;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006229
6230 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6231
Johannes Berg4c476992010-10-04 21:36:35 +02006232 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6233 return -EINVAL;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006234
6235 wdev = dev->ieee80211_ptr;
6236
Johannes Berg4c476992010-10-04 21:36:35 +02006237 if (!rdev->ops->set_power_mgmt)
6238 return -EOPNOTSUPP;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006239
6240 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6241
6242 if (state == wdev->ps)
Johannes Berg4c476992010-10-04 21:36:35 +02006243 return 0;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006244
Johannes Berg4c476992010-10-04 21:36:35 +02006245 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6246 wdev->ps_timeout);
6247 if (!err)
6248 wdev->ps = state;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006249 return err;
6250}
6251
6252static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6253{
Johannes Berg4c476992010-10-04 21:36:35 +02006254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Kalle Valoffb9eb32010-02-17 17:58:10 +02006255 enum nl80211_ps_state ps_state;
6256 struct wireless_dev *wdev;
Johannes Berg4c476992010-10-04 21:36:35 +02006257 struct net_device *dev = info->user_ptr[1];
Kalle Valoffb9eb32010-02-17 17:58:10 +02006258 struct sk_buff *msg;
6259 void *hdr;
6260 int err;
6261
Kalle Valoffb9eb32010-02-17 17:58:10 +02006262 wdev = dev->ieee80211_ptr;
6263
Johannes Berg4c476992010-10-04 21:36:35 +02006264 if (!rdev->ops->set_power_mgmt)
6265 return -EOPNOTSUPP;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006266
6267 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg4c476992010-10-04 21:36:35 +02006268 if (!msg)
6269 return -ENOMEM;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006270
6271 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6272 NL80211_CMD_GET_POWER_SAVE);
6273 if (!hdr) {
Johannes Berg4c476992010-10-04 21:36:35 +02006274 err = -ENOBUFS;
Kalle Valoffb9eb32010-02-17 17:58:10 +02006275 goto free_msg;
6276 }
6277
6278 if (wdev->ps)
6279 ps_state = NL80211_PS_ENABLED;
6280 else
6281 ps_state = NL80211_PS_DISABLED;
6282
6283 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
6284
6285 genlmsg_end(msg, hdr);
Johannes Berg4c476992010-10-04 21:36:35 +02006286 return genlmsg_reply(msg, info);
Kalle Valoffb9eb32010-02-17 17:58:10 +02006287
Johannes Berg4c476992010-10-04 21:36:35 +02006288 nla_put_failure:
Kalle Valoffb9eb32010-02-17 17:58:10 +02006289 err = -ENOBUFS;
Johannes Berg4c476992010-10-04 21:36:35 +02006290 free_msg:
Kalle Valoffb9eb32010-02-17 17:58:10 +02006291 nlmsg_free(msg);
Kalle Valoffb9eb32010-02-17 17:58:10 +02006292 return err;
6293}
6294
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006295static struct nla_policy
6296nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6297 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6298 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6299 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6300};
6301
6302static int nl80211_set_cqm_rssi(struct genl_info *info,
6303 s32 threshold, u32 hysteresis)
6304{
Johannes Berg4c476992010-10-04 21:36:35 +02006305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006306 struct wireless_dev *wdev;
Johannes Berg4c476992010-10-04 21:36:35 +02006307 struct net_device *dev = info->user_ptr[1];
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006308
6309 if (threshold > 0)
6310 return -EINVAL;
6311
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006312 wdev = dev->ieee80211_ptr;
6313
Johannes Berg4c476992010-10-04 21:36:35 +02006314 if (!rdev->ops->set_cqm_rssi_config)
6315 return -EOPNOTSUPP;
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006316
Johannes Berg074ac8d2010-09-16 14:58:22 +02006317 if (wdev->iftype != NL80211_IFTYPE_STATION &&
Johannes Berg4c476992010-10-04 21:36:35 +02006318 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6319 return -EOPNOTSUPP;
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006320
Johannes Berg4c476992010-10-04 21:36:35 +02006321 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6322 threshold, hysteresis);
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02006323}
6324
6325static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6326{
6327 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6328 struct nlattr *cqm;
6329 int err;
6330
6331 cqm = info->attrs[NL80211_ATTR_CQM];
6332 if (!cqm) {
6333 err = -EINVAL;
6334 goto out;
6335 }
6336
6337 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6338 nl80211_attr_cqm_policy);
6339 if (err)
6340 goto out;
6341
6342 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6343 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6344 s32 threshold;
6345 u32 hysteresis;
6346 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6347 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6348 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6349 } else
6350 err = -EINVAL;
6351
6352out:
6353 return err;
6354}
6355
Johannes Berg29cbe682010-12-03 09:20:44 +01006356static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6357{
6358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6359 struct net_device *dev = info->user_ptr[1];
6360 struct mesh_config cfg;
Javier Cardonac80d5452010-12-16 17:37:49 -08006361 struct mesh_setup setup;
Johannes Berg29cbe682010-12-03 09:20:44 +01006362 int err;
6363
6364 /* start with default */
6365 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
Javier Cardonac80d5452010-12-16 17:37:49 -08006366 memcpy(&setup, &default_mesh_setup, sizeof(setup));
Johannes Berg29cbe682010-12-03 09:20:44 +01006367
Javier Cardona24bdd9f2010-12-16 17:37:48 -08006368 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
Johannes Berg29cbe682010-12-03 09:20:44 +01006369 /* and parse parameters if given */
Javier Cardona24bdd9f2010-12-16 17:37:48 -08006370 err = nl80211_parse_mesh_config(info, &cfg, NULL);
Johannes Berg29cbe682010-12-03 09:20:44 +01006371 if (err)
6372 return err;
6373 }
6374
6375 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6376 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6377 return -EINVAL;
6378
Javier Cardonac80d5452010-12-16 17:37:49 -08006379 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6380 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6381
Chun-Yeow Yeoh4bb62342011-11-24 17:15:20 -08006382 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6383 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6384 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6385 return -EINVAL;
6386
Javier Cardonac80d5452010-12-16 17:37:49 -08006387 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6388 /* parse additional setup parameters if given */
6389 err = nl80211_parse_mesh_setup(info, &setup);
6390 if (err)
6391 return err;
6392 }
6393
6394 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
Johannes Berg29cbe682010-12-03 09:20:44 +01006395}
6396
6397static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6398{
6399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6400 struct net_device *dev = info->user_ptr[1];
6401
6402 return cfg80211_leave_mesh(rdev, dev);
6403}
6404
Johannes Bergff1b6e62011-05-04 15:37:28 +02006405static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6406{
6407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6408 struct sk_buff *msg;
6409 void *hdr;
6410
6411 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6412 return -EOPNOTSUPP;
6413
6414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6415 if (!msg)
6416 return -ENOMEM;
6417
6418 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6419 NL80211_CMD_GET_WOWLAN);
6420 if (!hdr)
6421 goto nla_put_failure;
6422
6423 if (rdev->wowlan) {
6424 struct nlattr *nl_wowlan;
6425
6426 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6427 if (!nl_wowlan)
6428 goto nla_put_failure;
6429
6430 if (rdev->wowlan->any)
6431 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
6432 if (rdev->wowlan->disconnect)
6433 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
6434 if (rdev->wowlan->magic_pkt)
6435 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
Johannes Berg77dbbb12011-07-13 10:48:55 +02006436 if (rdev->wowlan->gtk_rekey_failure)
6437 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
6438 if (rdev->wowlan->eap_identity_req)
6439 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
6440 if (rdev->wowlan->four_way_handshake)
6441 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
6442 if (rdev->wowlan->rfkill_release)
6443 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
Johannes Bergff1b6e62011-05-04 15:37:28 +02006444 if (rdev->wowlan->n_patterns) {
6445 struct nlattr *nl_pats, *nl_pat;
6446 int i, pat_len;
6447
6448 nl_pats = nla_nest_start(msg,
6449 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6450 if (!nl_pats)
6451 goto nla_put_failure;
6452
6453 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6454 nl_pat = nla_nest_start(msg, i + 1);
6455 if (!nl_pat)
6456 goto nla_put_failure;
6457 pat_len = rdev->wowlan->patterns[i].pattern_len;
6458 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
6459 DIV_ROUND_UP(pat_len, 8),
6460 rdev->wowlan->patterns[i].mask);
6461 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6462 pat_len,
6463 rdev->wowlan->patterns[i].pattern);
6464 nla_nest_end(msg, nl_pat);
6465 }
6466 nla_nest_end(msg, nl_pats);
6467 }
6468
6469 nla_nest_end(msg, nl_wowlan);
6470 }
6471
6472 genlmsg_end(msg, hdr);
6473 return genlmsg_reply(msg, info);
6474
6475nla_put_failure:
6476 nlmsg_free(msg);
6477 return -ENOBUFS;
6478}
6479
6480static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6481{
6482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6483 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6484 struct cfg80211_wowlan no_triggers = {};
6485 struct cfg80211_wowlan new_triggers = {};
6486 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6487 int err, i;
6488
6489 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6490 return -EOPNOTSUPP;
6491
6492 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6493 goto no_triggers;
6494
6495 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6496 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6497 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6498 nl80211_wowlan_policy);
6499 if (err)
6500 return err;
6501
6502 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6503 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6504 return -EINVAL;
6505 new_triggers.any = true;
6506 }
6507
6508 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6509 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6510 return -EINVAL;
6511 new_triggers.disconnect = true;
6512 }
6513
6514 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6515 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6516 return -EINVAL;
6517 new_triggers.magic_pkt = true;
6518 }
6519
Johannes Berg77dbbb12011-07-13 10:48:55 +02006520 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6521 return -EINVAL;
6522
6523 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6524 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6525 return -EINVAL;
6526 new_triggers.gtk_rekey_failure = true;
6527 }
6528
6529 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6530 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6531 return -EINVAL;
6532 new_triggers.eap_identity_req = true;
6533 }
6534
6535 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6536 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6537 return -EINVAL;
6538 new_triggers.four_way_handshake = true;
6539 }
6540
6541 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6542 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6543 return -EINVAL;
6544 new_triggers.rfkill_release = true;
6545 }
6546
Johannes Bergff1b6e62011-05-04 15:37:28 +02006547 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6548 struct nlattr *pat;
6549 int n_patterns = 0;
6550 int rem, pat_len, mask_len;
6551 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6552
6553 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6554 rem)
6555 n_patterns++;
6556 if (n_patterns > wowlan->n_patterns)
6557 return -EINVAL;
6558
6559 new_triggers.patterns = kcalloc(n_patterns,
6560 sizeof(new_triggers.patterns[0]),
6561 GFP_KERNEL);
6562 if (!new_triggers.patterns)
6563 return -ENOMEM;
6564
6565 new_triggers.n_patterns = n_patterns;
6566 i = 0;
6567
6568 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6569 rem) {
6570 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6571 nla_data(pat), nla_len(pat), NULL);
6572 err = -EINVAL;
6573 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6574 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6575 goto error;
6576 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6577 mask_len = DIV_ROUND_UP(pat_len, 8);
6578 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6579 mask_len)
6580 goto error;
6581 if (pat_len > wowlan->pattern_max_len ||
6582 pat_len < wowlan->pattern_min_len)
6583 goto error;
6584
6585 new_triggers.patterns[i].mask =
6586 kmalloc(mask_len + pat_len, GFP_KERNEL);
6587 if (!new_triggers.patterns[i].mask) {
6588 err = -ENOMEM;
6589 goto error;
6590 }
6591 new_triggers.patterns[i].pattern =
6592 new_triggers.patterns[i].mask + mask_len;
6593 memcpy(new_triggers.patterns[i].mask,
6594 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6595 mask_len);
6596 new_triggers.patterns[i].pattern_len = pat_len;
6597 memcpy(new_triggers.patterns[i].pattern,
6598 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6599 pat_len);
6600 i++;
6601 }
6602 }
6603
6604 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6605 struct cfg80211_wowlan *ntrig;
6606 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6607 GFP_KERNEL);
6608 if (!ntrig) {
6609 err = -ENOMEM;
6610 goto error;
6611 }
6612 cfg80211_rdev_free_wowlan(rdev);
6613 rdev->wowlan = ntrig;
6614 } else {
6615 no_triggers:
6616 cfg80211_rdev_free_wowlan(rdev);
6617 rdev->wowlan = NULL;
6618 }
6619
6620 return 0;
6621 error:
6622 for (i = 0; i < new_triggers.n_patterns; i++)
6623 kfree(new_triggers.patterns[i].mask);
6624 kfree(new_triggers.patterns);
6625 return err;
6626}
6627
Johannes Berge5497d72011-07-05 16:35:40 +02006628static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6629{
6630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6631 struct net_device *dev = info->user_ptr[1];
6632 struct wireless_dev *wdev = dev->ieee80211_ptr;
6633 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6634 struct cfg80211_gtk_rekey_data rekey_data;
6635 int err;
6636
6637 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6638 return -EINVAL;
6639
6640 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6641 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6642 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6643 nl80211_rekey_policy);
6644 if (err)
6645 return err;
6646
Vladis Dronovf725dcf2017-09-13 00:21:21 +02006647 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
6648 !tb[NL80211_REKEY_DATA_KCK])
6649 return -EINVAL;
Johannes Berge5497d72011-07-05 16:35:40 +02006650 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6651 return -ERANGE;
6652 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6653 return -ERANGE;
6654 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6655 return -ERANGE;
6656
6657 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6658 NL80211_KEK_LEN);
6659 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6660 NL80211_KCK_LEN);
6661 memcpy(rekey_data.replay_ctr,
6662 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6663 NL80211_REPLAY_CTR_LEN);
6664
6665 wdev_lock(wdev);
6666 if (!wdev->current_bss) {
6667 err = -ENOTCONN;
6668 goto out;
6669 }
6670
6671 if (!rdev->ops->set_rekey_data) {
6672 err = -EOPNOTSUPP;
6673 goto out;
6674 }
6675
6676 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6677 out:
6678 wdev_unlock(wdev);
6679 return err;
6680}
6681
Johannes Berg28946da2011-11-04 11:18:12 +01006682static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6683 struct genl_info *info)
6684{
6685 struct net_device *dev = info->user_ptr[1];
6686 struct wireless_dev *wdev = dev->ieee80211_ptr;
6687
6688 if (wdev->iftype != NL80211_IFTYPE_AP &&
6689 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6690 return -EINVAL;
6691
6692 if (wdev->ap_unexpected_nlpid)
6693 return -EBUSY;
6694
6695 wdev->ap_unexpected_nlpid = info->snd_pid;
6696 return 0;
6697}
6698
Johannes Berg7f6cf312011-11-04 11:18:15 +01006699static int nl80211_probe_client(struct sk_buff *skb,
6700 struct genl_info *info)
6701{
6702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6703 struct net_device *dev = info->user_ptr[1];
6704 struct wireless_dev *wdev = dev->ieee80211_ptr;
6705 struct sk_buff *msg;
6706 void *hdr;
6707 const u8 *addr;
6708 u64 cookie;
6709 int err;
6710
6711 if (wdev->iftype != NL80211_IFTYPE_AP &&
6712 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6713 return -EOPNOTSUPP;
6714
6715 if (!info->attrs[NL80211_ATTR_MAC])
6716 return -EINVAL;
6717
6718 if (!rdev->ops->probe_client)
6719 return -EOPNOTSUPP;
6720
6721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6722 if (!msg)
6723 return -ENOMEM;
6724
6725 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6726 NL80211_CMD_PROBE_CLIENT);
Dan Carpenter367c2a12013-08-14 11:50:01 +00006727 if (!hdr) {
6728 err = -ENOBUFS;
Johannes Berg7f6cf312011-11-04 11:18:15 +01006729 goto free_msg;
6730 }
6731
6732 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6733
6734 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6735 if (err)
6736 goto free_msg;
6737
6738 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6739
6740 genlmsg_end(msg, hdr);
6741
6742 return genlmsg_reply(msg, info);
6743
6744 nla_put_failure:
6745 err = -ENOBUFS;
6746 free_msg:
6747 nlmsg_free(msg);
6748 return err;
6749}
6750
Johannes Berg5e760232011-11-04 11:18:17 +01006751static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6752{
6753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6754
6755 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6756 return -EOPNOTSUPP;
6757
6758 if (rdev->ap_beacons_nlpid)
6759 return -EBUSY;
6760
6761 rdev->ap_beacons_nlpid = info->snd_pid;
6762
6763 return 0;
6764}
6765
Jouni Malinen2b4303f2013-03-19 14:30:49 +05306766static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
6767{
6768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6769 struct cfg80211_update_ft_ies_params ft_params;
6770 struct net_device *dev = info->user_ptr[1];
6771
6772 if (!rdev->ops->update_ft_ies)
6773 return -EOPNOTSUPP;
6774
6775 if (!info->attrs[NL80211_ATTR_MDID] ||
6776 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6777 return -EINVAL;
6778
6779 memset(&ft_params, 0, sizeof(ft_params));
6780 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
6781 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6782 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6783
6784 return rdev->ops->update_ft_ies(&rdev->wiphy, dev, &ft_params);
6785}
6786
Leo Chang21b770c2014-01-15 19:22:28 -08006787static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
6788{
6789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6790 struct net_device *dev = info->user_ptr[1];
6791 struct wireless_dev *wdev = dev->ieee80211_ptr;
6792 int i, err;
6793 u32 vid, subcmd;
6794
6795 if (!rdev->wiphy.vendor_commands)
6796 return -EOPNOTSUPP;
6797
6798 if (IS_ERR(wdev)) {
6799 err = PTR_ERR(wdev);
6800 if (err != -EINVAL)
6801 return err;
6802 wdev = NULL;
6803 } else if (wdev->wiphy != &rdev->wiphy) {
6804 return -EINVAL;
6805 }
6806
6807 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
6808 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
6809 return -EINVAL;
6810
6811 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
6812 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
6813 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
6814 const struct wiphy_vendor_command *vcmd;
6815 void *data = NULL;
6816 int len = 0;
6817
6818 vcmd = &rdev->wiphy.vendor_commands[i];
6819
6820 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
6821 continue;
6822
6823 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
6824 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
6825 if (!wdev)
6826 return -EINVAL;
6827 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
6828 !wdev->netdev)
6829 return -EINVAL;
6830
6831 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
6832 if (wdev->netdev &&
6833 !netif_running(wdev->netdev))
6834 return -ENETDOWN;
6835 }
6836 } else {
6837 wdev = NULL;
6838 }
6839
6840 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
6841 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
6842 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
6843 }
Sunil Duttae074602014-05-27 18:37:04 +05306844 rdev->cur_cmd_info = info;
6845 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
Leo Chang21b770c2014-01-15 19:22:28 -08006846 data, len);
Sunil Duttae074602014-05-27 18:37:04 +05306847 rdev->cur_cmd_info = NULL;
6848 return err;
Leo Chang21b770c2014-01-15 19:22:28 -08006849 }
6850
6851 return -EOPNOTSUPP;
6852}
6853
6854struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
6855 enum nl80211_commands cmd,
6856 enum nl80211_attrs attr,
6857 int approxlen)
6858{
6859 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6860
6861 if (WARN_ON(!rdev->cur_cmd_info))
6862 return NULL;
6863
6864 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
6865 0,
6866 0,
Leo Changd87d6262014-01-15 19:52:00 -08006867 cmd, attr, NULL, GFP_KERNEL);
Leo Chang21b770c2014-01-15 19:22:28 -08006868}
6869EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
6870
6871int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
6872{
6873 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6874 void *hdr = ((void **)skb->cb)[1];
6875 struct nlattr *data = ((void **)skb->cb)[2];
6876
6877 if (WARN_ON(!rdev->cur_cmd_info)) {
6878 kfree_skb(skb);
6879 return -EINVAL;
6880 }
6881
Johannes Berg270e2032014-07-30 14:55:26 +02006882 /* clear CB data for netlink core to own from now on */
6883 memset(skb->cb, 0, sizeof(skb->cb));
6884
Leo Chang21b770c2014-01-15 19:22:28 -08006885 nla_nest_end(skb, data);
6886 genlmsg_end(skb, hdr);
6887 return genlmsg_reply(skb, rdev->cur_cmd_info);
6888}
6889EXPORT_SYMBOL(cfg80211_vendor_cmd_reply);
6890
Kyeyoon Park1368a382014-04-17 19:57:34 +05306891static int nl80211_set_qos_map(struct sk_buff *skb,
6892 struct genl_info *info)
6893{
6894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6895 struct cfg80211_qos_map *qos_map = NULL;
6896 struct net_device *dev = info->user_ptr[1];
6897 u8 *pos, len, num_des, des_len, des;
6898 int ret;
6899
6900 if (!rdev->ops->set_qos_map)
6901 return -EOPNOTSUPP;
6902
6903 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
6904 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
6905 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
6906
6907 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
6908 len > IEEE80211_QOS_MAP_LEN_MAX)
6909 return -EINVAL;
6910
6911 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
6912 if (!qos_map)
6913 return -ENOMEM;
6914
6915 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
6916 if (num_des) {
6917 des_len = num_des *
6918 sizeof(struct cfg80211_dscp_exception);
6919 memcpy(qos_map->dscp_exception, pos, des_len);
6920 qos_map->num_des = num_des;
6921 for (des = 0; des < num_des; des++) {
6922 if (qos_map->dscp_exception[des].up > 7) {
6923 kfree(qos_map);
6924 return -EINVAL;
6925 }
6926 }
6927 pos += des_len;
6928 }
6929 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
6930 }
6931
6932 wdev_lock(dev->ieee80211_ptr);
6933 ret = nl80211_key_allowed(dev->ieee80211_ptr);
6934 if (!ret)
6935 ret = rdev->ops->set_qos_map(&rdev->wiphy, dev, qos_map);
6936 wdev_unlock(dev->ieee80211_ptr);
6937
6938 kfree(qos_map);
6939 return ret;
6940}
6941
Johannes Berg4c476992010-10-04 21:36:35 +02006942#define NL80211_FLAG_NEED_WIPHY 0x01
6943#define NL80211_FLAG_NEED_NETDEV 0x02
6944#define NL80211_FLAG_NEED_RTNL 0x04
Johannes Berg41265712010-10-04 21:14:05 +02006945#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6946#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6947 NL80211_FLAG_CHECK_NETDEV_UP)
Johannes Berg4c476992010-10-04 21:36:35 +02006948
6949static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6950 struct genl_info *info)
6951{
6952 struct cfg80211_registered_device *rdev;
6953 struct net_device *dev;
6954 int err;
6955 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6956
6957 if (rtnl)
6958 rtnl_lock();
6959
6960 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6961 rdev = cfg80211_get_dev_from_info(info);
6962 if (IS_ERR(rdev)) {
6963 if (rtnl)
6964 rtnl_unlock();
6965 return PTR_ERR(rdev);
6966 }
6967 info->user_ptr[0] = rdev;
6968 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
Johannes Berg00918d32011-12-13 17:22:05 +01006969 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6970 &rdev, &dev);
Johannes Berg4c476992010-10-04 21:36:35 +02006971 if (err) {
6972 if (rtnl)
6973 rtnl_unlock();
6974 return err;
6975 }
Johannes Berg41265712010-10-04 21:14:05 +02006976 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6977 !netif_running(dev)) {
Johannes Bergd537f5f2010-10-05 21:34:11 +02006978 cfg80211_unlock_rdev(rdev);
6979 dev_put(dev);
Johannes Berg41265712010-10-04 21:14:05 +02006980 if (rtnl)
6981 rtnl_unlock();
6982 return -ENETDOWN;
6983 }
Johannes Berg4c476992010-10-04 21:36:35 +02006984 info->user_ptr[0] = rdev;
6985 info->user_ptr[1] = dev;
6986 }
6987
6988 return 0;
6989}
6990
6991static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6992 struct genl_info *info)
6993{
6994 if (info->user_ptr[0])
6995 cfg80211_unlock_rdev(info->user_ptr[0]);
6996 if (info->user_ptr[1])
6997 dev_put(info->user_ptr[1]);
6998 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6999 rtnl_unlock();
7000}
7001
Johannes Berg55682962007-09-20 13:09:35 -04007002static struct genl_ops nl80211_ops[] = {
7003 {
7004 .cmd = NL80211_CMD_GET_WIPHY,
7005 .doit = nl80211_get_wiphy,
7006 .dumpit = nl80211_dump_wiphy,
7007 .policy = nl80211_policy,
7008 /* can be retrieved by unprivileged users */
Johannes Berg4c476992010-10-04 21:36:35 +02007009 .internal_flags = NL80211_FLAG_NEED_WIPHY,
Johannes Berg55682962007-09-20 13:09:35 -04007010 },
7011 {
7012 .cmd = NL80211_CMD_SET_WIPHY,
7013 .doit = nl80211_set_wiphy,
7014 .policy = nl80211_policy,
7015 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007016 .internal_flags = NL80211_FLAG_NEED_RTNL,
Johannes Berg55682962007-09-20 13:09:35 -04007017 },
7018 {
7019 .cmd = NL80211_CMD_GET_INTERFACE,
7020 .doit = nl80211_get_interface,
7021 .dumpit = nl80211_dump_interface,
7022 .policy = nl80211_policy,
7023 /* can be retrieved by unprivileged users */
Johannes Berg4c476992010-10-04 21:36:35 +02007024 .internal_flags = NL80211_FLAG_NEED_NETDEV,
Johannes Berg55682962007-09-20 13:09:35 -04007025 },
7026 {
7027 .cmd = NL80211_CMD_SET_INTERFACE,
7028 .doit = nl80211_set_interface,
7029 .policy = nl80211_policy,
7030 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007031 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7032 NL80211_FLAG_NEED_RTNL,
Johannes Berg55682962007-09-20 13:09:35 -04007033 },
7034 {
7035 .cmd = NL80211_CMD_NEW_INTERFACE,
7036 .doit = nl80211_new_interface,
7037 .policy = nl80211_policy,
7038 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007039 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7040 NL80211_FLAG_NEED_RTNL,
Johannes Berg55682962007-09-20 13:09:35 -04007041 },
7042 {
7043 .cmd = NL80211_CMD_DEL_INTERFACE,
7044 .doit = nl80211_del_interface,
7045 .policy = nl80211_policy,
7046 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007047 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7048 NL80211_FLAG_NEED_RTNL,
Johannes Berg55682962007-09-20 13:09:35 -04007049 },
Johannes Berg41ade002007-12-19 02:03:29 +01007050 {
7051 .cmd = NL80211_CMD_GET_KEY,
7052 .doit = nl80211_get_key,
7053 .policy = nl80211_policy,
7054 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007056 NL80211_FLAG_NEED_RTNL,
Johannes Berg41ade002007-12-19 02:03:29 +01007057 },
7058 {
7059 .cmd = NL80211_CMD_SET_KEY,
7060 .doit = nl80211_set_key,
7061 .policy = nl80211_policy,
7062 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007064 NL80211_FLAG_NEED_RTNL,
Johannes Berg41ade002007-12-19 02:03:29 +01007065 },
7066 {
7067 .cmd = NL80211_CMD_NEW_KEY,
7068 .doit = nl80211_new_key,
7069 .policy = nl80211_policy,
7070 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007072 NL80211_FLAG_NEED_RTNL,
Johannes Berg41ade002007-12-19 02:03:29 +01007073 },
7074 {
7075 .cmd = NL80211_CMD_DEL_KEY,
7076 .doit = nl80211_del_key,
7077 .policy = nl80211_policy,
7078 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007080 NL80211_FLAG_NEED_RTNL,
Johannes Berg41ade002007-12-19 02:03:29 +01007081 },
Johannes Berged1b6cc2007-12-19 02:03:32 +01007082 {
7083 .cmd = NL80211_CMD_SET_BEACON,
7084 .policy = nl80211_policy,
7085 .flags = GENL_ADMIN_PERM,
Johannes Berg88600202012-02-13 15:17:18 +01007086 .doit = nl80211_set_beacon,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007088 NL80211_FLAG_NEED_RTNL,
Johannes Berged1b6cc2007-12-19 02:03:32 +01007089 },
7090 {
Johannes Berg88600202012-02-13 15:17:18 +01007091 .cmd = NL80211_CMD_START_AP,
Johannes Berged1b6cc2007-12-19 02:03:32 +01007092 .policy = nl80211_policy,
7093 .flags = GENL_ADMIN_PERM,
Johannes Berg88600202012-02-13 15:17:18 +01007094 .doit = nl80211_start_ap,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007095 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007096 NL80211_FLAG_NEED_RTNL,
Johannes Berged1b6cc2007-12-19 02:03:32 +01007097 },
7098 {
Johannes Berg88600202012-02-13 15:17:18 +01007099 .cmd = NL80211_CMD_STOP_AP,
Johannes Berged1b6cc2007-12-19 02:03:32 +01007100 .policy = nl80211_policy,
7101 .flags = GENL_ADMIN_PERM,
Johannes Berg88600202012-02-13 15:17:18 +01007102 .doit = nl80211_stop_ap,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007103 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007104 NL80211_FLAG_NEED_RTNL,
Johannes Berged1b6cc2007-12-19 02:03:32 +01007105 },
Johannes Berg5727ef12007-12-19 02:03:34 +01007106 {
7107 .cmd = NL80211_CMD_GET_STATION,
7108 .doit = nl80211_get_station,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01007109 .dumpit = nl80211_dump_station,
Johannes Berg5727ef12007-12-19 02:03:34 +01007110 .policy = nl80211_policy,
Johannes Berg4c476992010-10-04 21:36:35 +02007111 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7112 NL80211_FLAG_NEED_RTNL,
Johannes Berg5727ef12007-12-19 02:03:34 +01007113 },
7114 {
7115 .cmd = NL80211_CMD_SET_STATION,
7116 .doit = nl80211_set_station,
7117 .policy = nl80211_policy,
7118 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007119 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007120 NL80211_FLAG_NEED_RTNL,
Johannes Berg5727ef12007-12-19 02:03:34 +01007121 },
7122 {
7123 .cmd = NL80211_CMD_NEW_STATION,
7124 .doit = nl80211_new_station,
7125 .policy = nl80211_policy,
7126 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007127 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007128 NL80211_FLAG_NEED_RTNL,
Johannes Berg5727ef12007-12-19 02:03:34 +01007129 },
7130 {
7131 .cmd = NL80211_CMD_DEL_STATION,
7132 .doit = nl80211_del_station,
7133 .policy = nl80211_policy,
7134 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007135 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007136 NL80211_FLAG_NEED_RTNL,
Johannes Berg5727ef12007-12-19 02:03:34 +01007137 },
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01007138 {
7139 .cmd = NL80211_CMD_GET_MPATH,
7140 .doit = nl80211_get_mpath,
7141 .dumpit = nl80211_dump_mpath,
7142 .policy = nl80211_policy,
7143 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007145 NL80211_FLAG_NEED_RTNL,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01007146 },
7147 {
7148 .cmd = NL80211_CMD_SET_MPATH,
7149 .doit = nl80211_set_mpath,
7150 .policy = nl80211_policy,
7151 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007152 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007153 NL80211_FLAG_NEED_RTNL,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01007154 },
7155 {
7156 .cmd = NL80211_CMD_NEW_MPATH,
7157 .doit = nl80211_new_mpath,
7158 .policy = nl80211_policy,
7159 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007161 NL80211_FLAG_NEED_RTNL,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01007162 },
7163 {
7164 .cmd = NL80211_CMD_DEL_MPATH,
7165 .doit = nl80211_del_mpath,
7166 .policy = nl80211_policy,
7167 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007169 NL80211_FLAG_NEED_RTNL,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +01007170 },
Jouni Malinen9f1ba902008-08-07 20:07:01 +03007171 {
7172 .cmd = NL80211_CMD_SET_BSS,
7173 .doit = nl80211_set_bss,
7174 .policy = nl80211_policy,
7175 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007177 NL80211_FLAG_NEED_RTNL,
Jouni Malinen9f1ba902008-08-07 20:07:01 +03007178 },
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07007179 {
Luis R. Rodriguezf1303472009-01-30 09:26:42 -08007180 .cmd = NL80211_CMD_GET_REG,
7181 .doit = nl80211_get_reg,
7182 .policy = nl80211_policy,
7183 /* can be retrieved by unprivileged users */
7184 },
7185 {
Luis R. Rodriguezb2e1b302008-09-09 23:19:48 -07007186 .cmd = NL80211_CMD_SET_REG,
7187 .doit = nl80211_set_reg,
7188 .policy = nl80211_policy,
7189 .flags = GENL_ADMIN_PERM,
7190 },
7191 {
7192 .cmd = NL80211_CMD_REQ_SET_REG,
7193 .doit = nl80211_req_set_reg,
7194 .policy = nl80211_policy,
7195 .flags = GENL_ADMIN_PERM,
7196 },
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07007197 {
Javier Cardona24bdd9f2010-12-16 17:37:48 -08007198 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7199 .doit = nl80211_get_mesh_config,
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07007200 .policy = nl80211_policy,
7201 /* can be retrieved by unprivileged users */
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007203 NL80211_FLAG_NEED_RTNL,
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07007204 },
7205 {
Javier Cardona24bdd9f2010-12-16 17:37:48 -08007206 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7207 .doit = nl80211_update_mesh_config,
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07007208 .policy = nl80211_policy,
7209 .flags = GENL_ADMIN_PERM,
Johannes Berg29cbe682010-12-03 09:20:44 +01007210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007211 NL80211_FLAG_NEED_RTNL,
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07007212 },
Jouni Malinen9aed3cc2009-01-13 16:03:29 +02007213 {
Johannes Berg2a519312009-02-10 21:25:55 +01007214 .cmd = NL80211_CMD_TRIGGER_SCAN,
7215 .doit = nl80211_trigger_scan,
7216 .policy = nl80211_policy,
7217 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007219 NL80211_FLAG_NEED_RTNL,
Johannes Berg2a519312009-02-10 21:25:55 +01007220 },
7221 {
7222 .cmd = NL80211_CMD_GET_SCAN,
7223 .policy = nl80211_policy,
7224 .dumpit = nl80211_dump_scan,
7225 },
Jouni Malinen636a5d32009-03-19 13:39:22 +02007226 {
Luciano Coelho807f8a82011-05-11 17:09:35 +03007227 .cmd = NL80211_CMD_START_SCHED_SCAN,
7228 .doit = nl80211_start_sched_scan,
7229 .policy = nl80211_policy,
7230 .flags = GENL_ADMIN_PERM,
7231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7232 NL80211_FLAG_NEED_RTNL,
7233 },
7234 {
7235 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7236 .doit = nl80211_stop_sched_scan,
7237 .policy = nl80211_policy,
7238 .flags = GENL_ADMIN_PERM,
7239 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7240 NL80211_FLAG_NEED_RTNL,
7241 },
7242 {
Jouni Malinen636a5d32009-03-19 13:39:22 +02007243 .cmd = NL80211_CMD_AUTHENTICATE,
7244 .doit = nl80211_authenticate,
7245 .policy = nl80211_policy,
7246 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007248 NL80211_FLAG_NEED_RTNL,
Jouni Malinen636a5d32009-03-19 13:39:22 +02007249 },
7250 {
7251 .cmd = NL80211_CMD_ASSOCIATE,
7252 .doit = nl80211_associate,
7253 .policy = nl80211_policy,
7254 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007256 NL80211_FLAG_NEED_RTNL,
Jouni Malinen636a5d32009-03-19 13:39:22 +02007257 },
7258 {
7259 .cmd = NL80211_CMD_DEAUTHENTICATE,
7260 .doit = nl80211_deauthenticate,
7261 .policy = nl80211_policy,
7262 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007264 NL80211_FLAG_NEED_RTNL,
Jouni Malinen636a5d32009-03-19 13:39:22 +02007265 },
7266 {
7267 .cmd = NL80211_CMD_DISASSOCIATE,
7268 .doit = nl80211_disassociate,
7269 .policy = nl80211_policy,
7270 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007272 NL80211_FLAG_NEED_RTNL,
Jouni Malinen636a5d32009-03-19 13:39:22 +02007273 },
Johannes Berg04a773a2009-04-19 21:24:32 +02007274 {
7275 .cmd = NL80211_CMD_JOIN_IBSS,
7276 .doit = nl80211_join_ibss,
7277 .policy = nl80211_policy,
7278 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007280 NL80211_FLAG_NEED_RTNL,
Johannes Berg04a773a2009-04-19 21:24:32 +02007281 },
7282 {
7283 .cmd = NL80211_CMD_LEAVE_IBSS,
7284 .doit = nl80211_leave_ibss,
7285 .policy = nl80211_policy,
7286 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007288 NL80211_FLAG_NEED_RTNL,
Johannes Berg04a773a2009-04-19 21:24:32 +02007289 },
Johannes Bergaff89a92009-07-01 21:26:51 +02007290#ifdef CONFIG_NL80211_TESTMODE
7291 {
7292 .cmd = NL80211_CMD_TESTMODE,
7293 .doit = nl80211_testmode_do,
Wey-Yi Guy71063f02011-05-20 09:05:54 -07007294 .dumpit = nl80211_testmode_dump,
Johannes Bergaff89a92009-07-01 21:26:51 +02007295 .policy = nl80211_policy,
7296 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007297 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7298 NL80211_FLAG_NEED_RTNL,
Johannes Bergaff89a92009-07-01 21:26:51 +02007299 },
7300#endif
Samuel Ortizb23aa672009-07-01 21:26:54 +02007301 {
7302 .cmd = NL80211_CMD_CONNECT,
7303 .doit = nl80211_connect,
7304 .policy = nl80211_policy,
7305 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007307 NL80211_FLAG_NEED_RTNL,
Samuel Ortizb23aa672009-07-01 21:26:54 +02007308 },
7309 {
7310 .cmd = NL80211_CMD_DISCONNECT,
7311 .doit = nl80211_disconnect,
7312 .policy = nl80211_policy,
7313 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007315 NL80211_FLAG_NEED_RTNL,
Samuel Ortizb23aa672009-07-01 21:26:54 +02007316 },
Johannes Berg463d0182009-07-14 00:33:35 +02007317 {
7318 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7319 .doit = nl80211_wiphy_netns,
7320 .policy = nl80211_policy,
7321 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007322 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7323 NL80211_FLAG_NEED_RTNL,
Johannes Berg463d0182009-07-14 00:33:35 +02007324 },
Holger Schurig61fa7132009-11-11 12:25:40 +01007325 {
7326 .cmd = NL80211_CMD_GET_SURVEY,
7327 .policy = nl80211_policy,
7328 .dumpit = nl80211_dump_survey,
7329 },
Samuel Ortiz67fbb162009-11-24 23:59:15 +01007330 {
7331 .cmd = NL80211_CMD_SET_PMKSA,
7332 .doit = nl80211_setdel_pmksa,
7333 .policy = nl80211_policy,
7334 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007336 NL80211_FLAG_NEED_RTNL,
Samuel Ortiz67fbb162009-11-24 23:59:15 +01007337 },
7338 {
7339 .cmd = NL80211_CMD_DEL_PMKSA,
7340 .doit = nl80211_setdel_pmksa,
7341 .policy = nl80211_policy,
7342 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007344 NL80211_FLAG_NEED_RTNL,
Samuel Ortiz67fbb162009-11-24 23:59:15 +01007345 },
7346 {
7347 .cmd = NL80211_CMD_FLUSH_PMKSA,
7348 .doit = nl80211_flush_pmksa,
7349 .policy = nl80211_policy,
7350 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007352 NL80211_FLAG_NEED_RTNL,
Samuel Ortiz67fbb162009-11-24 23:59:15 +01007353 },
Jouni Malinen9588bbd2009-12-23 13:15:41 +01007354 {
7355 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7356 .doit = nl80211_remain_on_channel,
7357 .policy = nl80211_policy,
7358 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007360 NL80211_FLAG_NEED_RTNL,
Jouni Malinen9588bbd2009-12-23 13:15:41 +01007361 },
7362 {
7363 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7364 .doit = nl80211_cancel_remain_on_channel,
7365 .policy = nl80211_policy,
7366 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007368 NL80211_FLAG_NEED_RTNL,
Jouni Malinen9588bbd2009-12-23 13:15:41 +01007369 },
Jouni Malinen13ae75b2009-12-29 12:59:45 +02007370 {
7371 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7372 .doit = nl80211_set_tx_bitrate_mask,
7373 .policy = nl80211_policy,
7374 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007375 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7376 NL80211_FLAG_NEED_RTNL,
Jouni Malinen13ae75b2009-12-29 12:59:45 +02007377 },
Jouni Malinen026331c2010-02-15 12:53:10 +02007378 {
Johannes Berg2e161f72010-08-12 15:38:38 +02007379 .cmd = NL80211_CMD_REGISTER_FRAME,
7380 .doit = nl80211_register_mgmt,
Jouni Malinen026331c2010-02-15 12:53:10 +02007381 .policy = nl80211_policy,
7382 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007383 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7384 NL80211_FLAG_NEED_RTNL,
Jouni Malinen026331c2010-02-15 12:53:10 +02007385 },
7386 {
Johannes Berg2e161f72010-08-12 15:38:38 +02007387 .cmd = NL80211_CMD_FRAME,
7388 .doit = nl80211_tx_mgmt,
Jouni Malinen026331c2010-02-15 12:53:10 +02007389 .policy = nl80211_policy,
7390 .flags = GENL_ADMIN_PERM,
Johannes Berg41265712010-10-04 21:14:05 +02007391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg4c476992010-10-04 21:36:35 +02007392 NL80211_FLAG_NEED_RTNL,
Jouni Malinen026331c2010-02-15 12:53:10 +02007393 },
Kalle Valoffb9eb32010-02-17 17:58:10 +02007394 {
Johannes Bergf7ca38d2010-11-25 10:02:29 +01007395 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7396 .doit = nl80211_tx_mgmt_cancel_wait,
7397 .policy = nl80211_policy,
7398 .flags = GENL_ADMIN_PERM,
7399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7400 NL80211_FLAG_NEED_RTNL,
7401 },
7402 {
Kalle Valoffb9eb32010-02-17 17:58:10 +02007403 .cmd = NL80211_CMD_SET_POWER_SAVE,
7404 .doit = nl80211_set_power_save,
7405 .policy = nl80211_policy,
7406 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007407 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7408 NL80211_FLAG_NEED_RTNL,
Kalle Valoffb9eb32010-02-17 17:58:10 +02007409 },
7410 {
7411 .cmd = NL80211_CMD_GET_POWER_SAVE,
7412 .doit = nl80211_get_power_save,
7413 .policy = nl80211_policy,
7414 /* can be retrieved by unprivileged users */
Johannes Berg4c476992010-10-04 21:36:35 +02007415 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7416 NL80211_FLAG_NEED_RTNL,
Kalle Valoffb9eb32010-02-17 17:58:10 +02007417 },
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02007418 {
7419 .cmd = NL80211_CMD_SET_CQM,
7420 .doit = nl80211_set_cqm,
7421 .policy = nl80211_policy,
7422 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007423 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7424 NL80211_FLAG_NEED_RTNL,
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02007425 },
Johannes Bergf444de02010-05-05 15:25:02 +02007426 {
7427 .cmd = NL80211_CMD_SET_CHANNEL,
7428 .doit = nl80211_set_channel,
7429 .policy = nl80211_policy,
7430 .flags = GENL_ADMIN_PERM,
Johannes Berg4c476992010-10-04 21:36:35 +02007431 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7432 NL80211_FLAG_NEED_RTNL,
Johannes Bergf444de02010-05-05 15:25:02 +02007433 },
Bill Jordane8347eb2010-10-01 13:54:28 -04007434 {
7435 .cmd = NL80211_CMD_SET_WDS_PEER,
7436 .doit = nl80211_set_wds_peer,
7437 .policy = nl80211_policy,
7438 .flags = GENL_ADMIN_PERM,
Johannes Berg43b19952010-10-07 13:10:30 +02007439 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7440 NL80211_FLAG_NEED_RTNL,
Bill Jordane8347eb2010-10-01 13:54:28 -04007441 },
Johannes Berg29cbe682010-12-03 09:20:44 +01007442 {
7443 .cmd = NL80211_CMD_JOIN_MESH,
7444 .doit = nl80211_join_mesh,
7445 .policy = nl80211_policy,
7446 .flags = GENL_ADMIN_PERM,
7447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7448 NL80211_FLAG_NEED_RTNL,
7449 },
7450 {
7451 .cmd = NL80211_CMD_LEAVE_MESH,
7452 .doit = nl80211_leave_mesh,
7453 .policy = nl80211_policy,
7454 .flags = GENL_ADMIN_PERM,
7455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7456 NL80211_FLAG_NEED_RTNL,
7457 },
Johannes Bergff1b6e62011-05-04 15:37:28 +02007458 {
7459 .cmd = NL80211_CMD_GET_WOWLAN,
7460 .doit = nl80211_get_wowlan,
7461 .policy = nl80211_policy,
7462 /* can be retrieved by unprivileged users */
7463 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7464 NL80211_FLAG_NEED_RTNL,
7465 },
7466 {
7467 .cmd = NL80211_CMD_SET_WOWLAN,
7468 .doit = nl80211_set_wowlan,
7469 .policy = nl80211_policy,
7470 .flags = GENL_ADMIN_PERM,
7471 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7472 NL80211_FLAG_NEED_RTNL,
7473 },
Johannes Berge5497d72011-07-05 16:35:40 +02007474 {
7475 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7476 .doit = nl80211_set_rekey_data,
7477 .policy = nl80211_policy,
7478 .flags = GENL_ADMIN_PERM,
7479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7480 NL80211_FLAG_NEED_RTNL,
7481 },
Arik Nemtsov109086c2011-09-28 14:12:50 +03007482 {
7483 .cmd = NL80211_CMD_TDLS_MGMT,
7484 .doit = nl80211_tdls_mgmt,
7485 .policy = nl80211_policy,
7486 .flags = GENL_ADMIN_PERM,
7487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7488 NL80211_FLAG_NEED_RTNL,
7489 },
7490 {
7491 .cmd = NL80211_CMD_TDLS_OPER,
7492 .doit = nl80211_tdls_oper,
7493 .policy = nl80211_policy,
7494 .flags = GENL_ADMIN_PERM,
7495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7496 NL80211_FLAG_NEED_RTNL,
7497 },
Johannes Berg28946da2011-11-04 11:18:12 +01007498 {
7499 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7500 .doit = nl80211_register_unexpected_frame,
7501 .policy = nl80211_policy,
7502 .flags = GENL_ADMIN_PERM,
7503 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7504 NL80211_FLAG_NEED_RTNL,
7505 },
Johannes Berg7f6cf312011-11-04 11:18:15 +01007506 {
7507 .cmd = NL80211_CMD_PROBE_CLIENT,
7508 .doit = nl80211_probe_client,
7509 .policy = nl80211_policy,
7510 .flags = GENL_ADMIN_PERM,
Johannes Berg2b5f8b02012-04-02 10:51:55 +02007511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
Johannes Berg7f6cf312011-11-04 11:18:15 +01007512 NL80211_FLAG_NEED_RTNL,
7513 },
Johannes Berg5e760232011-11-04 11:18:17 +01007514 {
7515 .cmd = NL80211_CMD_REGISTER_BEACONS,
7516 .doit = nl80211_register_beacons,
7517 .policy = nl80211_policy,
7518 .flags = GENL_ADMIN_PERM,
7519 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7520 NL80211_FLAG_NEED_RTNL,
7521 },
Simon Wunderlich1d9d9212011-11-18 14:20:43 +01007522 {
7523 .cmd = NL80211_CMD_SET_NOACK_MAP,
7524 .doit = nl80211_set_noack_map,
7525 .policy = nl80211_policy,
7526 .flags = GENL_ADMIN_PERM,
7527 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7528 NL80211_FLAG_NEED_RTNL,
7529 },
Jouni Malinen2b4303f2013-03-19 14:30:49 +05307530 {
Vasanthakumar Thiagarajanb78cacb2013-05-14 19:04:43 +05307531 .cmd = NL80211_CMD_SET_MAC_ACL,
7532 .doit = nl80211_set_mac_acl,
7533 .policy = nl80211_policy,
7534 .flags = GENL_ADMIN_PERM,
7535 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7536 NL80211_FLAG_NEED_RTNL,
7537 },
7538 {
Jouni Malinen2b4303f2013-03-19 14:30:49 +05307539 .cmd = NL80211_CMD_UPDATE_FT_IES,
7540 .doit = nl80211_update_ft_ies,
7541 .policy = nl80211_policy,
7542 .flags = GENL_ADMIN_PERM,
7543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7544 NL80211_FLAG_NEED_RTNL,
7545 },
Leo Chang21b770c2014-01-15 19:22:28 -08007546 {
7547 .cmd = NL80211_CMD_VENDOR,
7548 .doit = nl80211_vendor_cmd,
7549 .policy = nl80211_policy,
7550 .flags = GENL_ADMIN_PERM,
Subhani Shaik21631822014-03-17 15:41:45 -07007551 .internal_flags = NL80211_FLAG_NEED_NETDEV |
Leo Chang21b770c2014-01-15 19:22:28 -08007552 NL80211_FLAG_NEED_RTNL,
7553 },
Kyeyoon Park1368a382014-04-17 19:57:34 +05307554 {
7555 .cmd = NL80211_CMD_SET_QOS_MAP,
7556 .doit = nl80211_set_qos_map,
7557 .policy = nl80211_policy,
7558 .flags = GENL_ADMIN_PERM,
7559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7560 NL80211_FLAG_NEED_RTNL,
7561 },
Johannes Berg55682962007-09-20 13:09:35 -04007562};
Jouni Malinen9588bbd2009-12-23 13:15:41 +01007563
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007564static struct genl_multicast_group nl80211_mlme_mcgrp = {
7565 .name = "mlme",
7566};
Johannes Berg55682962007-09-20 13:09:35 -04007567
7568/* multicast groups */
7569static struct genl_multicast_group nl80211_config_mcgrp = {
7570 .name = "config",
7571};
Johannes Berg2a519312009-02-10 21:25:55 +01007572static struct genl_multicast_group nl80211_scan_mcgrp = {
7573 .name = "scan",
7574};
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -04007575static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7576 .name = "regulatory",
7577};
Johannes Berg55682962007-09-20 13:09:35 -04007578
7579/* notification functions */
7580
7581void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7582{
7583 struct sk_buff *msg;
7584
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07007585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg55682962007-09-20 13:09:35 -04007586 if (!msg)
7587 return;
7588
7589 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7590 nlmsg_free(msg);
7591 return;
7592 }
7593
Johannes Berg463d0182009-07-14 00:33:35 +02007594 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7595 nl80211_config_mcgrp.id, GFP_KERNEL);
Johannes Berg55682962007-09-20 13:09:35 -04007596}
7597
Johannes Berg362a4152009-05-24 16:43:15 +02007598static int nl80211_add_scan_req(struct sk_buff *msg,
7599 struct cfg80211_registered_device *rdev)
7600{
7601 struct cfg80211_scan_request *req = rdev->scan_req;
7602 struct nlattr *nest;
7603 int i;
7604
Johannes Berg667503d2009-07-07 03:56:11 +02007605 ASSERT_RDEV_LOCK(rdev);
7606
Johannes Berg362a4152009-05-24 16:43:15 +02007607 if (WARN_ON(!req))
7608 return 0;
7609
7610 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7611 if (!nest)
7612 goto nla_put_failure;
7613 for (i = 0; i < req->n_ssids; i++)
7614 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
7615 nla_nest_end(msg, nest);
7616
7617 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7618 if (!nest)
7619 goto nla_put_failure;
7620 for (i = 0; i < req->n_channels; i++)
7621 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
7622 nla_nest_end(msg, nest);
7623
7624 if (req->ie)
7625 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
7626
7627 return 0;
7628 nla_put_failure:
7629 return -ENOBUFS;
7630}
7631
Johannes Berga538e2d2009-06-16 19:56:42 +02007632static int nl80211_send_scan_msg(struct sk_buff *msg,
7633 struct cfg80211_registered_device *rdev,
7634 struct net_device *netdev,
7635 u32 pid, u32 seq, int flags,
7636 u32 cmd)
Johannes Berg2a519312009-02-10 21:25:55 +01007637{
7638 void *hdr;
7639
7640 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7641 if (!hdr)
7642 return -1;
7643
Luis R. Rodriguezb5850a72009-02-21 00:04:19 -05007644 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
Johannes Berg2a519312009-02-10 21:25:55 +01007645 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7646
Johannes Berg362a4152009-05-24 16:43:15 +02007647 /* ignore errors and send incomplete event anyway */
7648 nl80211_add_scan_req(msg, rdev);
Johannes Berg2a519312009-02-10 21:25:55 +01007649
7650 return genlmsg_end(msg, hdr);
7651
7652 nla_put_failure:
7653 genlmsg_cancel(msg, hdr);
7654 return -EMSGSIZE;
7655}
7656
Luciano Coelho807f8a82011-05-11 17:09:35 +03007657static int
7658nl80211_send_sched_scan_msg(struct sk_buff *msg,
7659 struct cfg80211_registered_device *rdev,
7660 struct net_device *netdev,
7661 u32 pid, u32 seq, int flags, u32 cmd)
7662{
7663 void *hdr;
7664
7665 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7666 if (!hdr)
7667 return -1;
7668
7669 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7670 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7671
7672 return genlmsg_end(msg, hdr);
7673
7674 nla_put_failure:
7675 genlmsg_cancel(msg, hdr);
7676 return -EMSGSIZE;
7677}
7678
Johannes Berga538e2d2009-06-16 19:56:42 +02007679void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7680 struct net_device *netdev)
7681{
7682 struct sk_buff *msg;
7683
7684 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7685 if (!msg)
7686 return;
7687
7688 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7689 NL80211_CMD_TRIGGER_SCAN) < 0) {
7690 nlmsg_free(msg);
7691 return;
7692 }
7693
Johannes Berg463d0182009-07-14 00:33:35 +02007694 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7695 nl80211_scan_mcgrp.id, GFP_KERNEL);
Johannes Berga538e2d2009-06-16 19:56:42 +02007696}
7697
Johannes Berg2a519312009-02-10 21:25:55 +01007698void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7699 struct net_device *netdev)
7700{
7701 struct sk_buff *msg;
7702
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07007703 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg2a519312009-02-10 21:25:55 +01007704 if (!msg)
7705 return;
7706
Johannes Berga538e2d2009-06-16 19:56:42 +02007707 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7708 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
Johannes Berg2a519312009-02-10 21:25:55 +01007709 nlmsg_free(msg);
7710 return;
7711 }
7712
Johannes Berg463d0182009-07-14 00:33:35 +02007713 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7714 nl80211_scan_mcgrp.id, GFP_KERNEL);
Johannes Berg2a519312009-02-10 21:25:55 +01007715}
7716
7717void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7718 struct net_device *netdev)
7719{
7720 struct sk_buff *msg;
7721
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07007722 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Johannes Berg2a519312009-02-10 21:25:55 +01007723 if (!msg)
7724 return;
7725
Johannes Berga538e2d2009-06-16 19:56:42 +02007726 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7727 NL80211_CMD_SCAN_ABORTED) < 0) {
Johannes Berg2a519312009-02-10 21:25:55 +01007728 nlmsg_free(msg);
7729 return;
7730 }
7731
Johannes Berg463d0182009-07-14 00:33:35 +02007732 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7733 nl80211_scan_mcgrp.id, GFP_KERNEL);
Johannes Berg2a519312009-02-10 21:25:55 +01007734}
7735
Luciano Coelho807f8a82011-05-11 17:09:35 +03007736void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7737 struct net_device *netdev)
7738{
7739 struct sk_buff *msg;
7740
7741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7742 if (!msg)
7743 return;
7744
7745 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7746 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7747 nlmsg_free(msg);
7748 return;
7749 }
7750
7751 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7752 nl80211_scan_mcgrp.id, GFP_KERNEL);
7753}
7754
7755void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7756 struct net_device *netdev, u32 cmd)
7757{
7758 struct sk_buff *msg;
7759
7760 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7761 if (!msg)
7762 return;
7763
7764 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7765 nlmsg_free(msg);
7766 return;
7767 }
7768
7769 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7770 nl80211_scan_mcgrp.id, GFP_KERNEL);
7771}
7772
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -04007773/*
7774 * This can happen on global regulatory changes or device specific settings
7775 * based on custom world regulatory domains.
7776 */
7777void nl80211_send_reg_change_event(struct regulatory_request *request)
7778{
7779 struct sk_buff *msg;
7780 void *hdr;
7781
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07007782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -04007783 if (!msg)
7784 return;
7785
7786 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7787 if (!hdr) {
7788 nlmsg_free(msg);
7789 return;
7790 }
7791
7792 /* Userspace can always count this one always being set */
7793 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7794
7795 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7796 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7797 NL80211_REGDOM_TYPE_WORLD);
7798 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7799 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7800 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7801 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7802 request->intersect)
7803 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7804 NL80211_REGDOM_TYPE_INTERSECTION);
7805 else {
7806 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7807 NL80211_REGDOM_TYPE_COUNTRY);
7808 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7809 }
7810
7811 if (wiphy_idx_valid(request->wiphy_idx))
7812 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7813
Johannes Berg3b7b72e2011-10-22 19:05:51 +02007814 genlmsg_end(msg, hdr);
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -04007815
Johannes Bergbc43b282009-07-25 10:54:13 +02007816 rcu_read_lock();
Johannes Berg463d0182009-07-14 00:33:35 +02007817 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
Johannes Bergbc43b282009-07-25 10:54:13 +02007818 GFP_ATOMIC);
7819 rcu_read_unlock();
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -04007820
7821 return;
7822
7823nla_put_failure:
7824 genlmsg_cancel(msg, hdr);
7825 nlmsg_free(msg);
7826}
7827
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007828static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7829 struct net_device *netdev,
7830 const u8 *buf, size_t len,
Johannes Berge6d6e342009-07-01 21:26:47 +02007831 enum nl80211_commands cmd, gfp_t gfp)
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007832{
7833 struct sk_buff *msg;
7834 void *hdr;
7835
Johannes Berge6d6e342009-07-01 21:26:47 +02007836 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007837 if (!msg)
7838 return;
7839
7840 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7841 if (!hdr) {
7842 nlmsg_free(msg);
7843 return;
7844 }
7845
7846 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7847 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7848 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7849
Johannes Berg3b7b72e2011-10-22 19:05:51 +02007850 genlmsg_end(msg, hdr);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007851
Johannes Berg463d0182009-07-14 00:33:35 +02007852 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7853 nl80211_mlme_mcgrp.id, gfp);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007854 return;
7855
7856 nla_put_failure:
7857 genlmsg_cancel(msg, hdr);
7858 nlmsg_free(msg);
7859}
7860
7861void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
Johannes Berge6d6e342009-07-01 21:26:47 +02007862 struct net_device *netdev, const u8 *buf,
7863 size_t len, gfp_t gfp)
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007864{
7865 nl80211_send_mlme_event(rdev, netdev, buf, len,
Johannes Berge6d6e342009-07-01 21:26:47 +02007866 NL80211_CMD_AUTHENTICATE, gfp);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007867}
7868
7869void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7870 struct net_device *netdev, const u8 *buf,
Johannes Berge6d6e342009-07-01 21:26:47 +02007871 size_t len, gfp_t gfp)
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007872{
Johannes Berge6d6e342009-07-01 21:26:47 +02007873 nl80211_send_mlme_event(rdev, netdev, buf, len,
7874 NL80211_CMD_ASSOCIATE, gfp);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007875}
7876
Jouni Malinen53b46b82009-03-27 20:53:56 +02007877void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
Johannes Berge6d6e342009-07-01 21:26:47 +02007878 struct net_device *netdev, const u8 *buf,
7879 size_t len, gfp_t gfp)
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007880{
7881 nl80211_send_mlme_event(rdev, netdev, buf, len,
Johannes Berge6d6e342009-07-01 21:26:47 +02007882 NL80211_CMD_DEAUTHENTICATE, gfp);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007883}
7884
Jouni Malinen53b46b82009-03-27 20:53:56 +02007885void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7886 struct net_device *netdev, const u8 *buf,
Johannes Berge6d6e342009-07-01 21:26:47 +02007887 size_t len, gfp_t gfp)
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007888{
7889 nl80211_send_mlme_event(rdev, netdev, buf, len,
Johannes Berge6d6e342009-07-01 21:26:47 +02007890 NL80211_CMD_DISASSOCIATE, gfp);
Jouni Malinen6039f6d2009-03-19 13:39:21 +02007891}
7892
Jouni Malinencf4e5942010-12-16 00:52:40 +02007893void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7894 struct net_device *netdev, const u8 *buf,
7895 size_t len, gfp_t gfp)
7896{
7897 nl80211_send_mlme_event(rdev, netdev, buf, len,
7898 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7899}
7900
7901void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7902 struct net_device *netdev, const u8 *buf,
7903 size_t len, gfp_t gfp)
7904{
7905 nl80211_send_mlme_event(rdev, netdev, buf, len,
7906 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7907}
7908
Luis R. Rodriguez1b06bb42009-05-02 00:34:48 -04007909static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7910 struct net_device *netdev, int cmd,
Johannes Berge6d6e342009-07-01 21:26:47 +02007911 const u8 *addr, gfp_t gfp)
Jouni Malinen1965c852009-04-22 21:38:25 +03007912{
7913 struct sk_buff *msg;
7914 void *hdr;
7915
Johannes Berge6d6e342009-07-01 21:26:47 +02007916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
Jouni Malinen1965c852009-04-22 21:38:25 +03007917 if (!msg)
7918 return;
7919
7920 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7921 if (!hdr) {
7922 nlmsg_free(msg);
7923 return;
7924 }
7925
7926 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7927 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7928 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7929 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7930
Johannes Berg3b7b72e2011-10-22 19:05:51 +02007931 genlmsg_end(msg, hdr);
Jouni Malinen1965c852009-04-22 21:38:25 +03007932
Johannes Berg463d0182009-07-14 00:33:35 +02007933 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7934 nl80211_mlme_mcgrp.id, gfp);
Jouni Malinen1965c852009-04-22 21:38:25 +03007935 return;
7936
7937 nla_put_failure:
7938 genlmsg_cancel(msg, hdr);
7939 nlmsg_free(msg);
7940}
7941
7942void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
Johannes Berge6d6e342009-07-01 21:26:47 +02007943 struct net_device *netdev, const u8 *addr,
7944 gfp_t gfp)
Jouni Malinen1965c852009-04-22 21:38:25 +03007945{
7946 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
Johannes Berge6d6e342009-07-01 21:26:47 +02007947 addr, gfp);
Jouni Malinen1965c852009-04-22 21:38:25 +03007948}
7949
7950void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
Johannes Berge6d6e342009-07-01 21:26:47 +02007951 struct net_device *netdev, const u8 *addr,
7952 gfp_t gfp)
Jouni Malinen1965c852009-04-22 21:38:25 +03007953{
Johannes Berge6d6e342009-07-01 21:26:47 +02007954 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7955 addr, gfp);
Jouni Malinen1965c852009-04-22 21:38:25 +03007956}
7957
Samuel Ortizb23aa672009-07-01 21:26:54 +02007958void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7959 struct net_device *netdev, const u8 *bssid,
7960 const u8 *req_ie, size_t req_ie_len,
7961 const u8 *resp_ie, size_t resp_ie_len,
7962 u16 status, gfp_t gfp)
7963{
7964 struct sk_buff *msg;
7965 void *hdr;
7966
7967 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7968 if (!msg)
7969 return;
7970
7971 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7972 if (!hdr) {
7973 nlmsg_free(msg);
7974 return;
7975 }
7976
7977 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7978 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7979 if (bssid)
7980 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7981 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7982 if (req_ie)
7983 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7984 if (resp_ie)
7985 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7986
Johannes Berg3b7b72e2011-10-22 19:05:51 +02007987 genlmsg_end(msg, hdr);
Samuel Ortizb23aa672009-07-01 21:26:54 +02007988
Johannes Berg463d0182009-07-14 00:33:35 +02007989 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7990 nl80211_mlme_mcgrp.id, gfp);
Samuel Ortizb23aa672009-07-01 21:26:54 +02007991 return;
7992
7993 nla_put_failure:
7994 genlmsg_cancel(msg, hdr);
7995 nlmsg_free(msg);
7996
7997}
7998
7999void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8000 struct net_device *netdev, const u8 *bssid,
8001 const u8 *req_ie, size_t req_ie_len,
8002 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8003{
8004 struct sk_buff *msg;
8005 void *hdr;
8006
8007 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8008 if (!msg)
8009 return;
8010
8011 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8012 if (!hdr) {
8013 nlmsg_free(msg);
8014 return;
8015 }
8016
8017 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8018 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8019 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8020 if (req_ie)
8021 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
8022 if (resp_ie)
8023 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
8024
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008025 genlmsg_end(msg, hdr);
Samuel Ortizb23aa672009-07-01 21:26:54 +02008026
Johannes Berg463d0182009-07-14 00:33:35 +02008027 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8028 nl80211_mlme_mcgrp.id, gfp);
Samuel Ortizb23aa672009-07-01 21:26:54 +02008029 return;
8030
8031 nla_put_failure:
8032 genlmsg_cancel(msg, hdr);
8033 nlmsg_free(msg);
8034
8035}
8036
8037void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8038 struct net_device *netdev, u16 reason,
Johannes Berg667503d2009-07-07 03:56:11 +02008039 const u8 *ie, size_t ie_len, bool from_ap)
Samuel Ortizb23aa672009-07-01 21:26:54 +02008040{
8041 struct sk_buff *msg;
8042 void *hdr;
8043
Johannes Berg667503d2009-07-07 03:56:11 +02008044 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
Samuel Ortizb23aa672009-07-01 21:26:54 +02008045 if (!msg)
8046 return;
8047
8048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8049 if (!hdr) {
8050 nlmsg_free(msg);
8051 return;
8052 }
8053
8054 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8055 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8056 if (from_ap && reason)
8057 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
8058 if (from_ap)
8059 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
8060 if (ie)
8061 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
8062
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008063 genlmsg_end(msg, hdr);
Samuel Ortizb23aa672009-07-01 21:26:54 +02008064
Johannes Berg463d0182009-07-14 00:33:35 +02008065 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8066 nl80211_mlme_mcgrp.id, GFP_KERNEL);
Samuel Ortizb23aa672009-07-01 21:26:54 +02008067 return;
8068
8069 nla_put_failure:
8070 genlmsg_cancel(msg, hdr);
8071 nlmsg_free(msg);
8072
8073}
8074
Johannes Berg04a773a2009-04-19 21:24:32 +02008075void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8076 struct net_device *netdev, const u8 *bssid,
8077 gfp_t gfp)
8078{
8079 struct sk_buff *msg;
8080 void *hdr;
8081
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07008082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
Johannes Berg04a773a2009-04-19 21:24:32 +02008083 if (!msg)
8084 return;
8085
8086 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8087 if (!hdr) {
8088 nlmsg_free(msg);
8089 return;
8090 }
8091
8092 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8093 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8094 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8095
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008096 genlmsg_end(msg, hdr);
Johannes Berg04a773a2009-04-19 21:24:32 +02008097
Johannes Berg463d0182009-07-14 00:33:35 +02008098 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8099 nl80211_mlme_mcgrp.id, gfp);
Johannes Berg04a773a2009-04-19 21:24:32 +02008100 return;
8101
8102 nla_put_failure:
8103 genlmsg_cancel(msg, hdr);
8104 nlmsg_free(msg);
8105}
8106
Javier Cardonac93b5e72011-04-07 15:08:34 -07008107void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8108 struct net_device *netdev,
8109 const u8 *macaddr, const u8* ie, u8 ie_len,
8110 gfp_t gfp)
8111{
8112 struct sk_buff *msg;
8113 void *hdr;
8114
8115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8116 if (!msg)
8117 return;
8118
8119 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8120 if (!hdr) {
8121 nlmsg_free(msg);
8122 return;
8123 }
8124
8125 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8126 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8127 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
8128 if (ie_len && ie)
8129 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
8130
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008131 genlmsg_end(msg, hdr);
Javier Cardonac93b5e72011-04-07 15:08:34 -07008132
8133 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8134 nl80211_mlme_mcgrp.id, gfp);
8135 return;
8136
8137 nla_put_failure:
8138 genlmsg_cancel(msg, hdr);
8139 nlmsg_free(msg);
8140}
8141
Jouni Malinena3b8b052009-03-27 21:59:49 +02008142void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8143 struct net_device *netdev, const u8 *addr,
8144 enum nl80211_key_type key_type, int key_id,
Johannes Berge6d6e342009-07-01 21:26:47 +02008145 const u8 *tsc, gfp_t gfp)
Jouni Malinena3b8b052009-03-27 21:59:49 +02008146{
8147 struct sk_buff *msg;
8148 void *hdr;
8149
Johannes Berge6d6e342009-07-01 21:26:47 +02008150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
Jouni Malinena3b8b052009-03-27 21:59:49 +02008151 if (!msg)
8152 return;
8153
8154 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8155 if (!hdr) {
8156 nlmsg_free(msg);
8157 return;
8158 }
8159
8160 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8161 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8162 if (addr)
8163 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8164 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
Arik Nemtsova66b98d2011-06-23 00:00:24 +03008165 if (key_id != -1)
8166 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
Jouni Malinena3b8b052009-03-27 21:59:49 +02008167 if (tsc)
8168 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
8169
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008170 genlmsg_end(msg, hdr);
Jouni Malinena3b8b052009-03-27 21:59:49 +02008171
Johannes Berg463d0182009-07-14 00:33:35 +02008172 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8173 nl80211_mlme_mcgrp.id, gfp);
Jouni Malinena3b8b052009-03-27 21:59:49 +02008174 return;
8175
8176 nla_put_failure:
8177 genlmsg_cancel(msg, hdr);
8178 nlmsg_free(msg);
8179}
8180
Luis R. Rodriguez6bad8762009-04-02 14:08:09 -04008181void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8182 struct ieee80211_channel *channel_before,
8183 struct ieee80211_channel *channel_after)
8184{
8185 struct sk_buff *msg;
8186 void *hdr;
8187 struct nlattr *nl_freq;
8188
Pablo Neira Ayusofd2120c2009-05-19 15:27:55 -07008189 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
Luis R. Rodriguez6bad8762009-04-02 14:08:09 -04008190 if (!msg)
8191 return;
8192
8193 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8194 if (!hdr) {
8195 nlmsg_free(msg);
8196 return;
8197 }
8198
8199 /*
8200 * Since we are applying the beacon hint to a wiphy we know its
8201 * wiphy_idx is valid
8202 */
8203 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
8204
8205 /* Before */
8206 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8207 if (!nl_freq)
8208 goto nla_put_failure;
8209 if (nl80211_msg_put_channel(msg, channel_before))
8210 goto nla_put_failure;
8211 nla_nest_end(msg, nl_freq);
8212
8213 /* After */
8214 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8215 if (!nl_freq)
8216 goto nla_put_failure;
8217 if (nl80211_msg_put_channel(msg, channel_after))
8218 goto nla_put_failure;
8219 nla_nest_end(msg, nl_freq);
8220
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008221 genlmsg_end(msg, hdr);
Luis R. Rodriguez6bad8762009-04-02 14:08:09 -04008222
Johannes Berg463d0182009-07-14 00:33:35 +02008223 rcu_read_lock();
8224 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8225 GFP_ATOMIC);
8226 rcu_read_unlock();
Luis R. Rodriguez6bad8762009-04-02 14:08:09 -04008227
8228 return;
8229
8230nla_put_failure:
8231 genlmsg_cancel(msg, hdr);
8232 nlmsg_free(msg);
8233}
8234
Jouni Malinen9588bbd2009-12-23 13:15:41 +01008235static void nl80211_send_remain_on_chan_event(
8236 int cmd, struct cfg80211_registered_device *rdev,
8237 struct net_device *netdev, u64 cookie,
8238 struct ieee80211_channel *chan,
8239 enum nl80211_channel_type channel_type,
8240 unsigned int duration, gfp_t gfp)
8241{
8242 struct sk_buff *msg;
8243 void *hdr;
8244
8245 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8246 if (!msg)
8247 return;
8248
8249 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8250 if (!hdr) {
8251 nlmsg_free(msg);
8252 return;
8253 }
8254
8255 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8256 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8257 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
8258 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
8259 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
8260
8261 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
8262 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
8263
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008264 genlmsg_end(msg, hdr);
Jouni Malinen9588bbd2009-12-23 13:15:41 +01008265
8266 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8267 nl80211_mlme_mcgrp.id, gfp);
8268 return;
8269
8270 nla_put_failure:
8271 genlmsg_cancel(msg, hdr);
8272 nlmsg_free(msg);
8273}
8274
8275void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8276 struct net_device *netdev, u64 cookie,
8277 struct ieee80211_channel *chan,
8278 enum nl80211_channel_type channel_type,
8279 unsigned int duration, gfp_t gfp)
8280{
8281 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8282 rdev, netdev, cookie, chan,
8283 channel_type, duration, gfp);
8284}
8285
8286void nl80211_send_remain_on_channel_cancel(
8287 struct cfg80211_registered_device *rdev, struct net_device *netdev,
8288 u64 cookie, struct ieee80211_channel *chan,
8289 enum nl80211_channel_type channel_type, gfp_t gfp)
8290{
8291 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8292 rdev, netdev, cookie, chan,
8293 channel_type, 0, gfp);
8294}
8295
Johannes Berg98b62182009-12-23 13:15:44 +01008296void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8297 struct net_device *dev, const u8 *mac_addr,
8298 struct station_info *sinfo, gfp_t gfp)
8299{
8300 struct sk_buff *msg;
8301
8302 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8303 if (!msg)
8304 return;
8305
John W. Linville66266b32012-03-15 13:25:41 -04008306 if (nl80211_send_station(msg, 0, 0, 0,
8307 rdev, dev, mac_addr, sinfo) < 0) {
Johannes Berg98b62182009-12-23 13:15:44 +01008308 nlmsg_free(msg);
8309 return;
8310 }
8311
8312 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8313 nl80211_mlme_mcgrp.id, gfp);
8314}
8315
Jouni Malinenec15e682011-03-23 15:29:52 +02008316void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8317 struct net_device *dev, const u8 *mac_addr,
8318 gfp_t gfp)
8319{
8320 struct sk_buff *msg;
8321 void *hdr;
8322
8323 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8324 if (!msg)
8325 return;
8326
8327 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8328 if (!hdr) {
8329 nlmsg_free(msg);
8330 return;
8331 }
8332
8333 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
8334 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
8335
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008336 genlmsg_end(msg, hdr);
Jouni Malinenec15e682011-03-23 15:29:52 +02008337
8338 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8339 nl80211_mlme_mcgrp.id, gfp);
8340 return;
8341
8342 nla_put_failure:
8343 genlmsg_cancel(msg, hdr);
8344 nlmsg_free(msg);
8345}
8346
Johannes Bergb92ab5d2011-11-04 11:18:19 +01008347static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8348 const u8 *addr, gfp_t gfp)
Johannes Berg28946da2011-11-04 11:18:12 +01008349{
8350 struct wireless_dev *wdev = dev->ieee80211_ptr;
8351 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8352 struct sk_buff *msg;
8353 void *hdr;
8354 int err;
8355 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8356
8357 if (!nlpid)
8358 return false;
8359
8360 msg = nlmsg_new(100, gfp);
8361 if (!msg)
8362 return true;
8363
Johannes Bergb92ab5d2011-11-04 11:18:19 +01008364 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
Johannes Berg28946da2011-11-04 11:18:12 +01008365 if (!hdr) {
8366 nlmsg_free(msg);
8367 return true;
8368 }
8369
8370 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8371 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
8372 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8373
8374 err = genlmsg_end(msg, hdr);
8375 if (err < 0) {
8376 nlmsg_free(msg);
8377 return true;
8378 }
8379
8380 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8381 return true;
8382
8383 nla_put_failure:
8384 genlmsg_cancel(msg, hdr);
8385 nlmsg_free(msg);
8386 return true;
8387}
8388
Johannes Bergb92ab5d2011-11-04 11:18:19 +01008389bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8390{
8391 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8392 addr, gfp);
8393}
8394
8395bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8396 const u8 *addr, gfp_t gfp)
8397{
8398 return __nl80211_unexpected_frame(dev,
8399 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8400 addr, gfp);
8401}
8402
Johannes Berg2e161f72010-08-12 15:38:38 +02008403int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8404 struct net_device *netdev, u32 nlpid,
Johannes Berg804483e2012-03-05 22:18:41 +01008405 int freq, int sig_dbm,
8406 const u8 *buf, size_t len, gfp_t gfp)
Jouni Malinen026331c2010-02-15 12:53:10 +02008407{
8408 struct sk_buff *msg;
8409 void *hdr;
Jouni Malinen026331c2010-02-15 12:53:10 +02008410
8411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8412 if (!msg)
8413 return -ENOMEM;
8414
Johannes Berg2e161f72010-08-12 15:38:38 +02008415 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
Jouni Malinen026331c2010-02-15 12:53:10 +02008416 if (!hdr) {
8417 nlmsg_free(msg);
8418 return -ENOMEM;
8419 }
8420
8421 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8422 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8423 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
Johannes Berg804483e2012-03-05 22:18:41 +01008424 if (sig_dbm)
8425 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
Jouni Malinen026331c2010-02-15 12:53:10 +02008426 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
8427
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008428 genlmsg_end(msg, hdr);
Jouni Malinen026331c2010-02-15 12:53:10 +02008429
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008430 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
Jouni Malinen026331c2010-02-15 12:53:10 +02008431
8432 nla_put_failure:
8433 genlmsg_cancel(msg, hdr);
8434 nlmsg_free(msg);
8435 return -ENOBUFS;
8436}
8437
Johannes Berg2e161f72010-08-12 15:38:38 +02008438void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8439 struct net_device *netdev, u64 cookie,
8440 const u8 *buf, size_t len, bool ack,
8441 gfp_t gfp)
Jouni Malinen026331c2010-02-15 12:53:10 +02008442{
8443 struct sk_buff *msg;
8444 void *hdr;
8445
8446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8447 if (!msg)
8448 return;
8449
Johannes Berg2e161f72010-08-12 15:38:38 +02008450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
Jouni Malinen026331c2010-02-15 12:53:10 +02008451 if (!hdr) {
8452 nlmsg_free(msg);
8453 return;
8454 }
8455
8456 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8457 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8458 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
8459 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
8460 if (ack)
8461 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
8462
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008463 genlmsg_end(msg, hdr);
Jouni Malinen026331c2010-02-15 12:53:10 +02008464
Michal Kaziordee58332013-06-25 09:17:17 +02008465 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8466 nl80211_mlme_mcgrp.id, gfp);
Jouni Malinen026331c2010-02-15 12:53:10 +02008467 return;
8468
8469 nla_put_failure:
8470 genlmsg_cancel(msg, hdr);
8471 nlmsg_free(msg);
8472}
8473
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02008474void
8475nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8476 struct net_device *netdev,
8477 enum nl80211_cqm_rssi_threshold_event rssi_event,
8478 gfp_t gfp)
8479{
8480 struct sk_buff *msg;
8481 struct nlattr *pinfoattr;
8482 void *hdr;
8483
8484 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8485 if (!msg)
8486 return;
8487
8488 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8489 if (!hdr) {
8490 nlmsg_free(msg);
8491 return;
8492 }
8493
8494 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8495 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8496
8497 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8498 if (!pinfoattr)
8499 goto nla_put_failure;
8500
8501 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8502 rssi_event);
8503
8504 nla_nest_end(msg, pinfoattr);
8505
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008506 genlmsg_end(msg, hdr);
Juuso Oikarinend6dc1a32010-03-23 09:02:33 +02008507
8508 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8509 nl80211_mlme_mcgrp.id, gfp);
8510 return;
8511
8512 nla_put_failure:
8513 genlmsg_cancel(msg, hdr);
8514 nlmsg_free(msg);
8515}
8516
Johannes Berge5497d72011-07-05 16:35:40 +02008517void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8518 struct net_device *netdev, const u8 *bssid,
8519 const u8 *replay_ctr, gfp_t gfp)
8520{
8521 struct sk_buff *msg;
8522 struct nlattr *rekey_attr;
8523 void *hdr;
8524
8525 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8526 if (!msg)
8527 return;
8528
8529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8530 if (!hdr) {
8531 nlmsg_free(msg);
8532 return;
8533 }
8534
8535 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8536 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8537 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8538
8539 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8540 if (!rekey_attr)
8541 goto nla_put_failure;
8542
8543 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8544 NL80211_REPLAY_CTR_LEN, replay_ctr);
8545
8546 nla_nest_end(msg, rekey_attr);
8547
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008548 genlmsg_end(msg, hdr);
Johannes Berge5497d72011-07-05 16:35:40 +02008549
8550 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8551 nl80211_mlme_mcgrp.id, gfp);
8552 return;
8553
8554 nla_put_failure:
8555 genlmsg_cancel(msg, hdr);
8556 nlmsg_free(msg);
8557}
8558
Jouni Malinenc9df56b2011-09-16 18:56:23 +03008559void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8560 struct net_device *netdev, int index,
8561 const u8 *bssid, bool preauth, gfp_t gfp)
8562{
8563 struct sk_buff *msg;
8564 struct nlattr *attr;
8565 void *hdr;
8566
8567 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8568 if (!msg)
8569 return;
8570
8571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8572 if (!hdr) {
8573 nlmsg_free(msg);
8574 return;
8575 }
8576
8577 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8578 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8579
8580 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8581 if (!attr)
8582 goto nla_put_failure;
8583
8584 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
8585 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
8586 if (preauth)
8587 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
8588
8589 nla_nest_end(msg, attr);
8590
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008591 genlmsg_end(msg, hdr);
Jouni Malinenc9df56b2011-09-16 18:56:23 +03008592
8593 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8594 nl80211_mlme_mcgrp.id, gfp);
8595 return;
8596
8597 nla_put_failure:
8598 genlmsg_cancel(msg, hdr);
8599 nlmsg_free(msg);
8600}
8601
Johannes Bergc063dbf2010-11-24 08:10:05 +01008602void
8603nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8604 struct net_device *netdev, const u8 *peer,
8605 u32 num_packets, gfp_t gfp)
8606{
8607 struct sk_buff *msg;
8608 struct nlattr *pinfoattr;
8609 void *hdr;
8610
8611 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8612 if (!msg)
8613 return;
8614
8615 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8616 if (!hdr) {
8617 nlmsg_free(msg);
8618 return;
8619 }
8620
8621 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8622 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8623 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
8624
8625 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8626 if (!pinfoattr)
8627 goto nla_put_failure;
8628
8629 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
8630
8631 nla_nest_end(msg, pinfoattr);
8632
Johannes Berg3b7b72e2011-10-22 19:05:51 +02008633 genlmsg_end(msg, hdr);
Johannes Bergc063dbf2010-11-24 08:10:05 +01008634
8635 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8636 nl80211_mlme_mcgrp.id, gfp);
8637 return;
8638
8639 nla_put_failure:
8640 genlmsg_cancel(msg, hdr);
8641 nlmsg_free(msg);
8642}
8643
Johannes Berg7f6cf312011-11-04 11:18:15 +01008644void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8645 u64 cookie, bool acked, gfp_t gfp)
8646{
8647 struct wireless_dev *wdev = dev->ieee80211_ptr;
8648 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8649 struct sk_buff *msg;
8650 void *hdr;
8651 int err;
8652
8653 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8654 if (!msg)
8655 return;
8656
8657 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8658 if (!hdr) {
8659 nlmsg_free(msg);
8660 return;
8661 }
8662
8663 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8664 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
8665 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8666 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
8667 if (acked)
8668 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
8669
8670 err = genlmsg_end(msg, hdr);
8671 if (err < 0) {
8672 nlmsg_free(msg);
8673 return;
8674 }
8675
8676 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8677 nl80211_mlme_mcgrp.id, gfp);
8678 return;
8679
8680 nla_put_failure:
8681 genlmsg_cancel(msg, hdr);
8682 nlmsg_free(msg);
8683}
8684EXPORT_SYMBOL(cfg80211_probe_status);
8685
Johannes Berg5e760232011-11-04 11:18:17 +01008686void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8687 const u8 *frame, size_t len,
Johannes Berg804483e2012-03-05 22:18:41 +01008688 int freq, int sig_dbm, gfp_t gfp)
Johannes Berg5e760232011-11-04 11:18:17 +01008689{
8690 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8691 struct sk_buff *msg;
8692 void *hdr;
8693 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8694
8695 if (!nlpid)
8696 return;
8697
8698 msg = nlmsg_new(len + 100, gfp);
8699 if (!msg)
8700 return;
8701
8702 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8703 if (!hdr) {
8704 nlmsg_free(msg);
8705 return;
8706 }
8707
8708 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8709 if (freq)
8710 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
Johannes Berg804483e2012-03-05 22:18:41 +01008711 if (sig_dbm)
8712 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
Johannes Berg5e760232011-11-04 11:18:17 +01008713 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
8714
8715 genlmsg_end(msg, hdr);
8716
8717 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8718 return;
8719
8720 nla_put_failure:
8721 genlmsg_cancel(msg, hdr);
8722 nlmsg_free(msg);
8723}
8724EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8725
Jouni Malinen4e1c8442013-01-28 21:11:03 -08008726void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
8727 enum nl80211_tdls_operation oper,
8728 u16 reason_code, gfp_t gfp)
8729{
8730 struct wireless_dev *wdev = dev->ieee80211_ptr;
8731 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8732 struct sk_buff *msg;
8733 void *hdr;
8734 int err;
8735
8736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8737 if (!msg)
8738 return;
8739
8740 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
8741 if (!hdr) {
8742 nlmsg_free(msg);
8743 return;
8744 }
8745
8746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8747 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8748 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
8749 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
8750 (reason_code > 0 &&
8751 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
8752 goto nla_put_failure;
8753
8754 err = genlmsg_end(msg, hdr);
8755 if (err < 0) {
8756 nlmsg_free(msg);
8757 return;
8758 }
8759
8760 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8761 nl80211_mlme_mcgrp.id, gfp);
8762 return;
8763
8764 nla_put_failure:
8765 genlmsg_cancel(msg, hdr);
8766 nlmsg_free(msg);
8767}
8768EXPORT_SYMBOL(cfg80211_tdls_oper_request);
8769
Jouni Malinen026331c2010-02-15 12:53:10 +02008770static int nl80211_netlink_notify(struct notifier_block * nb,
8771 unsigned long state,
8772 void *_notify)
8773{
8774 struct netlink_notify *notify = _notify;
8775 struct cfg80211_registered_device *rdev;
8776 struct wireless_dev *wdev;
8777
8778 if (state != NETLINK_URELEASE)
8779 return NOTIFY_DONE;
8780
8781 rcu_read_lock();
8782
Johannes Berg5e760232011-11-04 11:18:17 +01008783 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
Jouni Malinen026331c2010-02-15 12:53:10 +02008784 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
Johannes Berg2e161f72010-08-12 15:38:38 +02008785 cfg80211_mlme_unregister_socket(wdev, notify->pid);
Johannes Berg5e760232011-11-04 11:18:17 +01008786 if (rdev->ap_beacons_nlpid == notify->pid)
8787 rdev->ap_beacons_nlpid = 0;
8788 }
Jouni Malinen026331c2010-02-15 12:53:10 +02008789
8790 rcu_read_unlock();
8791
8792 return NOTIFY_DONE;
8793}
8794
8795static struct notifier_block nl80211_netlink_notifier = {
8796 .notifier_call = nl80211_netlink_notify,
8797};
8798
Jouni Malinen2b4303f2013-03-19 14:30:49 +05308799void cfg80211_ft_event(struct net_device *netdev,
8800 struct cfg80211_ft_event_params *ft_event)
8801{
8802 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
8803 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8804 struct sk_buff *msg;
8805 void *hdr;
8806 int err;
8807
8808 if (!ft_event->target_ap)
8809 return;
8810
8811 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8812 if (!msg)
8813 return;
8814
8815 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
8816 if (!hdr) {
8817 nlmsg_free(msg);
8818 return;
8819 }
8820
8821 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8822 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
8823 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
8824 if (ft_event->ies)
8825 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
8826 if (ft_event->ric_ies)
8827 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
8828 ft_event->ric_ies);
8829
8830 err = genlmsg_end(msg, hdr);
8831 if (err < 0) {
8832 nlmsg_free(msg);
8833 return;
8834 }
8835
8836 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8837 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8838}
8839EXPORT_SYMBOL(cfg80211_ft_event);
8840
Sameer Thalappil80f3d6f2013-07-05 14:58:32 -07008841
8842void cfg80211_ap_stopped(struct net_device *netdev, gfp_t gfp)
8843{
8844 struct wireless_dev *wdev = netdev->ieee80211_ptr;
8845 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8846
8847 nl80211_send_mlme_event(rdev, netdev, NULL, 0,
8848 NL80211_CMD_STOP_AP, gfp);
8849}
8850EXPORT_SYMBOL(cfg80211_ap_stopped);
8851
8852
Johannes Berg55682962007-09-20 13:09:35 -04008853/* initialisation/exit functions */
8854
8855int nl80211_init(void)
8856{
Michał Mirosław0d63cbb2009-05-21 10:34:06 +00008857 int err;
Johannes Berg55682962007-09-20 13:09:35 -04008858
Michał Mirosław0d63cbb2009-05-21 10:34:06 +00008859 err = genl_register_family_with_ops(&nl80211_fam,
8860 nl80211_ops, ARRAY_SIZE(nl80211_ops));
Johannes Berg55682962007-09-20 13:09:35 -04008861 if (err)
8862 return err;
8863
Johannes Berg55682962007-09-20 13:09:35 -04008864 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8865 if (err)
8866 goto err_out;
8867
Johannes Berg2a519312009-02-10 21:25:55 +01008868 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8869 if (err)
8870 goto err_out;
8871
Luis R. Rodriguez73d54c92009-03-09 22:07:42 -04008872 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8873 if (err)
8874 goto err_out;
8875
Jouni Malinen6039f6d2009-03-19 13:39:21 +02008876 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8877 if (err)
8878 goto err_out;
8879
Johannes Bergaff89a92009-07-01 21:26:51 +02008880#ifdef CONFIG_NL80211_TESTMODE
8881 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8882 if (err)
8883 goto err_out;
8884#endif
Leo Changd87d6262014-01-15 19:52:00 -08008885 err = genl_register_mc_group(&nl80211_fam, &nl80211_vendor_mcgrp);
8886 if (err)
8887 goto err_out;
Johannes Bergaff89a92009-07-01 21:26:51 +02008888
Jouni Malinen026331c2010-02-15 12:53:10 +02008889 err = netlink_register_notifier(&nl80211_netlink_notifier);
8890 if (err)
8891 goto err_out;
8892
Johannes Berg55682962007-09-20 13:09:35 -04008893 return 0;
8894 err_out:
8895 genl_unregister_family(&nl80211_fam);
8896 return err;
8897}
8898
8899void nl80211_exit(void)
8900{
Jouni Malinen026331c2010-02-15 12:53:10 +02008901 netlink_unregister_notifier(&nl80211_netlink_notifier);
Johannes Berg55682962007-09-20 13:09:35 -04008902 genl_unregister_family(&nl80211_fam);
8903}