Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 1 | /* |
| 2 | * cfg80211 MLME SAP interface |
| 3 | * |
| 4 | * Copyright (c) 2009, Jouni Malinen <j@w1.fi> |
| 5 | */ |
| 6 | |
| 7 | #include <linux/kernel.h> |
| 8 | #include <linux/module.h> |
| 9 | #include <linux/netdevice.h> |
| 10 | #include <linux/nl80211.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 11 | #include <linux/slab.h> |
Johannes Berg | a9a1162 | 2009-07-27 12:01:53 +0200 | [diff] [blame] | 12 | #include <linux/wireless.h> |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 13 | #include <net/cfg80211.h> |
Johannes Berg | a9a1162 | 2009-07-27 12:01:53 +0200 | [diff] [blame] | 14 | #include <net/iw_handler.h> |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 15 | #include "core.h" |
| 16 | #include "nl80211.h" |
| 17 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 18 | void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len) |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 19 | { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 20 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 21 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 22 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 23 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
| 24 | u8 *bssid = mgmt->bssid; |
| 25 | int i; |
| 26 | u16 status = le16_to_cpu(mgmt->u.auth.status_code); |
| 27 | bool done = false; |
| 28 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 29 | wdev_lock(wdev); |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 30 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 31 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 32 | if (wdev->authtry_bsses[i] && |
| 33 | memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, |
| 34 | ETH_ALEN) == 0) { |
| 35 | if (status == WLAN_STATUS_SUCCESS) { |
| 36 | wdev->auth_bsses[i] = wdev->authtry_bsses[i]; |
| 37 | } else { |
| 38 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 39 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 40 | } |
| 41 | wdev->authtry_bsses[i] = NULL; |
| 42 | done = true; |
| 43 | break; |
| 44 | } |
| 45 | } |
| 46 | |
Johannes Berg | 643f82e | 2010-07-12 14:46:43 +0200 | [diff] [blame] | 47 | if (done) { |
| 48 | nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL); |
| 49 | cfg80211_sme_rx_auth(dev, buf, len); |
| 50 | } |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 51 | |
| 52 | wdev_unlock(wdev); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 53 | } |
| 54 | EXPORT_SYMBOL(cfg80211_send_rx_auth); |
| 55 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 56 | void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len) |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 57 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 58 | u16 status_code; |
| 59 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 60 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 61 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 62 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
| 63 | u8 *ie = mgmt->u.assoc_resp.variable; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 64 | int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable); |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 65 | struct cfg80211_internal_bss *bss = NULL; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 66 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 67 | wdev_lock(wdev); |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 68 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 69 | status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); |
| 70 | |
Johannes Berg | f401a6f | 2009-08-07 14:51:05 +0200 | [diff] [blame] | 71 | /* |
| 72 | * This is a bit of a hack, we don't notify userspace of |
| 73 | * a (re-)association reply if we tried to send a reassoc |
| 74 | * and got a reject -- we only try again with an assoc |
| 75 | * frame instead of reassoc. |
| 76 | */ |
| 77 | if (status_code != WLAN_STATUS_SUCCESS && wdev->conn && |
| 78 | cfg80211_sme_failed_reassoc(wdev)) |
| 79 | goto out; |
| 80 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 81 | nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 82 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 83 | if (status_code == WLAN_STATUS_SUCCESS) { |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 84 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 85 | if (!wdev->auth_bsses[i]) |
| 86 | continue; |
| 87 | if (memcmp(wdev->auth_bsses[i]->pub.bssid, mgmt->bssid, |
| 88 | ETH_ALEN) == 0) { |
| 89 | bss = wdev->auth_bsses[i]; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 90 | wdev->auth_bsses[i] = NULL; |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 91 | /* additional reference to drop hold */ |
| 92 | cfg80211_ref_bss(bss); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 93 | break; |
| 94 | } |
| 95 | } |
| 96 | |
Johannes Berg | 3bdb2d4 | 2009-12-23 13:12:05 +0100 | [diff] [blame] | 97 | /* |
| 98 | * We might be coming here because the driver reported |
| 99 | * a successful association at the same time as the |
| 100 | * user requested a deauth. In that case, we will have |
| 101 | * removed the BSS from the auth_bsses list due to the |
| 102 | * deauth request when the assoc response makes it. If |
| 103 | * the two code paths acquire the lock the other way |
| 104 | * around, that's just the standard situation of a |
| 105 | * deauth being requested while connected. |
| 106 | */ |
| 107 | if (!bss) |
| 108 | goto out; |
Johannes Berg | 7d930bc | 2009-10-20 15:08:53 +0900 | [diff] [blame] | 109 | } else if (wdev->conn) { |
| 110 | cfg80211_sme_failed_assoc(wdev); |
Johannes Berg | 7d930bc | 2009-10-20 15:08:53 +0900 | [diff] [blame] | 111 | /* |
| 112 | * do not call connect_result() now because the |
| 113 | * sme will schedule work that does it later. |
| 114 | */ |
| 115 | goto out; |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 116 | } |
| 117 | |
Johannes Berg | ea416a7 | 2009-08-17 12:22:14 +0200 | [diff] [blame] | 118 | if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) { |
| 119 | /* |
| 120 | * This is for the userspace SME, the CONNECTING |
| 121 | * state will be changed to CONNECTED by |
| 122 | * __cfg80211_connect_result() below. |
| 123 | */ |
| 124 | wdev->sme_state = CFG80211_SME_CONNECTING; |
| 125 | } |
| 126 | |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 127 | /* this consumes one bss reference (unless bss is NULL) */ |
| 128 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs, |
| 129 | status_code, |
| 130 | status_code == WLAN_STATUS_SUCCESS, |
| 131 | bss ? &bss->pub : NULL); |
| 132 | /* drop hold now, and also reference acquired above */ |
| 133 | if (bss) { |
| 134 | cfg80211_unhold_bss(bss); |
| 135 | cfg80211_put_bss(&bss->pub); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 136 | } |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 137 | |
Johannes Berg | f401a6f | 2009-08-07 14:51:05 +0200 | [diff] [blame] | 138 | out: |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 139 | wdev_unlock(wdev); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 140 | } |
| 141 | EXPORT_SYMBOL(cfg80211_send_rx_assoc); |
| 142 | |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 143 | void __cfg80211_send_deauth(struct net_device *dev, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 144 | const u8 *buf, size_t len) |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 145 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 146 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 147 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 148 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 149 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 150 | const u8 *bssid = mgmt->bssid; |
| 151 | int i; |
Johannes Berg | 3f3b6a8 | 2010-08-05 10:20:27 +0200 | [diff] [blame] | 152 | bool found = false, was_current = false; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 153 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 154 | ASSERT_WDEV_LOCK(wdev); |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 155 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 156 | if (wdev->current_bss && |
| 157 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 158 | cfg80211_unhold_bss(wdev->current_bss); |
| 159 | cfg80211_put_bss(&wdev->current_bss->pub); |
| 160 | wdev->current_bss = NULL; |
Johannes Berg | 5fba4af | 2009-12-02 12:43:42 +0100 | [diff] [blame] | 161 | found = true; |
Johannes Berg | 3f3b6a8 | 2010-08-05 10:20:27 +0200 | [diff] [blame] | 162 | was_current = true; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 163 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 164 | if (wdev->auth_bsses[i] && |
| 165 | memcmp(wdev->auth_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) { |
| 166 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 167 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 168 | wdev->auth_bsses[i] = NULL; |
Johannes Berg | 5fba4af | 2009-12-02 12:43:42 +0100 | [diff] [blame] | 169 | found = true; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 170 | break; |
| 171 | } |
| 172 | if (wdev->authtry_bsses[i] && |
Paul Stewart | 323222b | 2011-06-08 05:52:52 -0700 | [diff] [blame] | 173 | memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, |
| 174 | ETH_ALEN) == 0 && |
| 175 | memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) == 0) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 176 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 177 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 178 | wdev->authtry_bsses[i] = NULL; |
Johannes Berg | 5fba4af | 2009-12-02 12:43:42 +0100 | [diff] [blame] | 179 | found = true; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 180 | break; |
| 181 | } |
| 182 | } |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 183 | |
Johannes Berg | 5fba4af | 2009-12-02 12:43:42 +0100 | [diff] [blame] | 184 | if (!found) |
| 185 | return; |
| 186 | |
| 187 | nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL); |
| 188 | |
Johannes Berg | 3f3b6a8 | 2010-08-05 10:20:27 +0200 | [diff] [blame] | 189 | if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 190 | u16 reason_code; |
| 191 | bool from_ap; |
| 192 | |
| 193 | reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
| 194 | |
Johannes Berg | e458b8a | 2009-08-06 20:41:33 +0200 | [diff] [blame] | 195 | from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 196 | __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 197 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING) { |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 198 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
| 199 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 200 | false, NULL); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 201 | } |
| 202 | } |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 203 | EXPORT_SYMBOL(__cfg80211_send_deauth); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 204 | |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 205 | void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 206 | { |
| 207 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 208 | |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 209 | wdev_lock(wdev); |
| 210 | __cfg80211_send_deauth(dev, buf, len); |
| 211 | wdev_unlock(wdev); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 212 | } |
Jouni Malinen | 53b46b8 | 2009-03-27 20:53:56 +0200 | [diff] [blame] | 213 | EXPORT_SYMBOL(cfg80211_send_deauth); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 214 | |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 215 | void __cfg80211_send_disassoc(struct net_device *dev, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 216 | const u8 *buf, size_t len) |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 217 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 218 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 219 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 220 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 221 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 222 | const u8 *bssid = mgmt->bssid; |
| 223 | int i; |
| 224 | u16 reason_code; |
| 225 | bool from_ap; |
| 226 | bool done = false; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 227 | |
Johannes Berg | 596a07c | 2009-07-11 00:17:32 +0200 | [diff] [blame] | 228 | ASSERT_WDEV_LOCK(wdev); |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 229 | |
| 230 | nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 231 | |
Johannes Berg | 596a07c | 2009-07-11 00:17:32 +0200 | [diff] [blame] | 232 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
| 233 | return; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 234 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 235 | if (wdev->current_bss && |
Pavel Roskin | b935df0 | 2009-08-06 04:52:42 -0400 | [diff] [blame] | 236 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 237 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 238 | if (wdev->authtry_bsses[i] || wdev->auth_bsses[i]) |
| 239 | continue; |
| 240 | wdev->auth_bsses[i] = wdev->current_bss; |
| 241 | wdev->current_bss = NULL; |
| 242 | done = true; |
| 243 | cfg80211_sme_disassoc(dev, i); |
| 244 | break; |
| 245 | } |
| 246 | WARN_ON(!done); |
| 247 | } else |
| 248 | WARN_ON(1); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 249 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 250 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 251 | reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); |
| 252 | |
Johannes Berg | e458b8a | 2009-08-06 20:41:33 +0200 | [diff] [blame] | 253 | from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 254 | __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 255 | } |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 256 | EXPORT_SYMBOL(__cfg80211_send_disassoc); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 257 | |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 258 | void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 259 | { |
| 260 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 261 | |
Holger Schurig | ce470613c | 2009-10-13 13:28:13 +0200 | [diff] [blame] | 262 | wdev_lock(wdev); |
| 263 | __cfg80211_send_disassoc(dev, buf, len); |
| 264 | wdev_unlock(wdev); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 265 | } |
Jouni Malinen | 53b46b8 | 2009-03-27 20:53:56 +0200 | [diff] [blame] | 266 | EXPORT_SYMBOL(cfg80211_send_disassoc); |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 267 | |
Jouni Malinen | cf4e594 | 2010-12-16 00:52:40 +0200 | [diff] [blame] | 268 | void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, |
| 269 | size_t len) |
| 270 | { |
| 271 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 272 | struct wiphy *wiphy = wdev->wiphy; |
| 273 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 274 | |
| 275 | nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC); |
| 276 | } |
| 277 | EXPORT_SYMBOL(cfg80211_send_unprot_deauth); |
| 278 | |
| 279 | void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, |
| 280 | size_t len) |
| 281 | { |
| 282 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 283 | struct wiphy *wiphy = wdev->wiphy; |
| 284 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 285 | |
| 286 | nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC); |
| 287 | } |
| 288 | EXPORT_SYMBOL(cfg80211_send_unprot_disassoc); |
| 289 | |
Johannes Berg | a58ce43 | 2009-11-19 12:45:42 +0100 | [diff] [blame] | 290 | static void __cfg80211_auth_remove(struct wireless_dev *wdev, const u8 *addr) |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 291 | { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 292 | int i; |
| 293 | bool done = false; |
| 294 | |
Johannes Berg | a58ce43 | 2009-11-19 12:45:42 +0100 | [diff] [blame] | 295 | ASSERT_WDEV_LOCK(wdev); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 296 | |
| 297 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { |
| 298 | if (wdev->authtry_bsses[i] && |
| 299 | memcmp(wdev->authtry_bsses[i]->pub.bssid, |
| 300 | addr, ETH_ALEN) == 0) { |
| 301 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 302 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 303 | wdev->authtry_bsses[i] = NULL; |
| 304 | done = true; |
| 305 | break; |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | WARN_ON(!done); |
Johannes Berg | a58ce43 | 2009-11-19 12:45:42 +0100 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr) |
| 313 | { |
| 314 | __cfg80211_auth_remove(dev->ieee80211_ptr, addr); |
| 315 | } |
| 316 | EXPORT_SYMBOL(__cfg80211_auth_canceled); |
| 317 | |
| 318 | void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr) |
| 319 | { |
| 320 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 321 | struct wiphy *wiphy = wdev->wiphy; |
| 322 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 323 | |
| 324 | wdev_lock(wdev); |
| 325 | |
| 326 | nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL); |
| 327 | if (wdev->sme_state == CFG80211_SME_CONNECTING) |
| 328 | __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, |
| 329 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
| 330 | false, NULL); |
| 331 | |
| 332 | __cfg80211_auth_remove(wdev, addr); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 333 | |
| 334 | wdev_unlock(wdev); |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 335 | } |
| 336 | EXPORT_SYMBOL(cfg80211_send_auth_timeout); |
| 337 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 338 | void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr) |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 339 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 340 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 341 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 342 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 343 | int i; |
| 344 | bool done = false; |
| 345 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 346 | wdev_lock(wdev); |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 347 | |
| 348 | nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 349 | if (wdev->sme_state == CFG80211_SME_CONNECTING) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 350 | __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, |
| 351 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
Johannes Berg | df7fc0f | 2009-07-29 11:23:49 +0200 | [diff] [blame] | 352 | false, NULL); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 353 | |
| 354 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { |
| 355 | if (wdev->auth_bsses[i] && |
| 356 | memcmp(wdev->auth_bsses[i]->pub.bssid, |
| 357 | addr, ETH_ALEN) == 0) { |
| 358 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 359 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 360 | wdev->auth_bsses[i] = NULL; |
| 361 | done = true; |
| 362 | break; |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | WARN_ON(!done); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 367 | |
| 368 | wdev_unlock(wdev); |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 369 | } |
| 370 | EXPORT_SYMBOL(cfg80211_send_assoc_timeout); |
| 371 | |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 372 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
| 373 | enum nl80211_key_type key_type, int key_id, |
Johannes Berg | e6d6e34 | 2009-07-01 21:26:47 +0200 | [diff] [blame] | 374 | const u8 *tsc, gfp_t gfp) |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 375 | { |
| 376 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| 377 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 3d23e34 | 2009-09-29 23:27:28 +0200 | [diff] [blame] | 378 | #ifdef CONFIG_CFG80211_WEXT |
Johannes Berg | f58d4ed | 2009-06-19 02:45:21 +0200 | [diff] [blame] | 379 | union iwreq_data wrqu; |
Johannes Berg | e6d6e34 | 2009-07-01 21:26:47 +0200 | [diff] [blame] | 380 | char *buf = kmalloc(128, gfp); |
Johannes Berg | f58d4ed | 2009-06-19 02:45:21 +0200 | [diff] [blame] | 381 | |
| 382 | if (buf) { |
| 383 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" |
| 384 | "keyid=%d %scast addr=%pM)", key_id, |
| 385 | key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni", |
| 386 | addr); |
| 387 | memset(&wrqu, 0, sizeof(wrqu)); |
| 388 | wrqu.data.length = strlen(buf); |
| 389 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); |
| 390 | kfree(buf); |
| 391 | } |
| 392 | #endif |
| 393 | |
Johannes Berg | e6d6e34 | 2009-07-01 21:26:47 +0200 | [diff] [blame] | 394 | nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp); |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 395 | } |
| 396 | EXPORT_SYMBOL(cfg80211_michael_mic_failure); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 397 | |
| 398 | /* some MLME handling for userspace SME */ |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 399 | int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
| 400 | struct net_device *dev, |
| 401 | struct ieee80211_channel *chan, |
| 402 | enum nl80211_auth_type auth_type, |
| 403 | const u8 *bssid, |
| 404 | const u8 *ssid, int ssid_len, |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 405 | const u8 *ie, int ie_len, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 406 | const u8 *key, int key_len, int key_idx, |
| 407 | bool local_state_change) |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 408 | { |
| 409 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 410 | struct cfg80211_auth_request req; |
| 411 | struct cfg80211_internal_bss *bss; |
| 412 | int i, err, slot = -1, nfree = 0; |
| 413 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 414 | ASSERT_WDEV_LOCK(wdev); |
| 415 | |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 416 | if (auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
| 417 | if (!key || !key_len || key_idx < 0 || key_idx > 4) |
| 418 | return -EINVAL; |
| 419 | |
Johannes Berg | 0a9b5e1 | 2009-07-02 18:26:18 +0200 | [diff] [blame] | 420 | if (wdev->current_bss && |
| 421 | memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0) |
| 422 | return -EALREADY; |
| 423 | |
| 424 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 425 | if (wdev->authtry_bsses[i] && |
| 426 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, |
| 427 | ETH_ALEN) == 0) |
| 428 | return -EALREADY; |
| 429 | if (wdev->auth_bsses[i] && |
| 430 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, |
| 431 | ETH_ALEN) == 0) |
| 432 | return -EALREADY; |
| 433 | } |
| 434 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 435 | memset(&req, 0, sizeof(req)); |
| 436 | |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 437 | req.local_state_change = local_state_change; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 438 | req.ie = ie; |
| 439 | req.ie_len = ie_len; |
| 440 | req.auth_type = auth_type; |
| 441 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
| 442 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 443 | req.key = key; |
| 444 | req.key_len = key_len; |
| 445 | req.key_idx = key_idx; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 446 | if (!req.bss) |
| 447 | return -ENOENT; |
| 448 | |
| 449 | bss = bss_from_pub(req.bss); |
| 450 | |
| 451 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 452 | if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) { |
| 453 | slot = i; |
| 454 | nfree++; |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | /* we need one free slot for disassoc and one for this auth */ |
| 459 | if (nfree < 2) { |
| 460 | err = -ENOSPC; |
| 461 | goto out; |
| 462 | } |
| 463 | |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 464 | if (local_state_change) |
| 465 | wdev->auth_bsses[slot] = bss; |
| 466 | else |
| 467 | wdev->authtry_bsses[slot] = bss; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 468 | cfg80211_hold_bss(bss); |
| 469 | |
| 470 | err = rdev->ops->auth(&rdev->wiphy, dev, &req); |
| 471 | if (err) { |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 472 | if (local_state_change) |
| 473 | wdev->auth_bsses[slot] = NULL; |
| 474 | else |
| 475 | wdev->authtry_bsses[slot] = NULL; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 476 | cfg80211_unhold_bss(bss); |
| 477 | } |
| 478 | |
| 479 | out: |
| 480 | if (err) |
| 481 | cfg80211_put_bss(req.bss); |
| 482 | return err; |
| 483 | } |
| 484 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 485 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
| 486 | struct net_device *dev, struct ieee80211_channel *chan, |
| 487 | enum nl80211_auth_type auth_type, const u8 *bssid, |
| 488 | const u8 *ssid, int ssid_len, |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 489 | const u8 *ie, int ie_len, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 490 | const u8 *key, int key_len, int key_idx, |
| 491 | bool local_state_change) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 492 | { |
| 493 | int err; |
| 494 | |
| 495 | wdev_lock(dev->ieee80211_ptr); |
| 496 | err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 497 | ssid, ssid_len, ie, ie_len, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 498 | key, key_len, key_idx, local_state_change); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 499 | wdev_unlock(dev->ieee80211_ptr); |
| 500 | |
| 501 | return err; |
| 502 | } |
| 503 | |
| 504 | int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
| 505 | struct net_device *dev, |
| 506 | struct ieee80211_channel *chan, |
| 507 | const u8 *bssid, const u8 *prev_bssid, |
| 508 | const u8 *ssid, int ssid_len, |
| 509 | const u8 *ie, int ie_len, bool use_mfp, |
| 510 | struct cfg80211_crypto_settings *crypt) |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 511 | { |
| 512 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 513 | struct cfg80211_assoc_request req; |
| 514 | struct cfg80211_internal_bss *bss; |
| 515 | int i, err, slot = -1; |
Jouni Malinen | 24b6b15 | 2009-11-17 21:35:38 +0200 | [diff] [blame] | 516 | bool was_connected = false; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 517 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 518 | ASSERT_WDEV_LOCK(wdev); |
| 519 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 520 | memset(&req, 0, sizeof(req)); |
| 521 | |
Jouni Malinen | 24b6b15 | 2009-11-17 21:35:38 +0200 | [diff] [blame] | 522 | if (wdev->current_bss && prev_bssid && |
| 523 | memcmp(wdev->current_bss->pub.bssid, prev_bssid, ETH_ALEN) == 0) { |
| 524 | /* |
| 525 | * Trying to reassociate: Allow this to proceed and let the old |
| 526 | * association to be dropped when the new one is completed. |
| 527 | */ |
| 528 | if (wdev->sme_state == CFG80211_SME_CONNECTED) { |
| 529 | was_connected = true; |
| 530 | wdev->sme_state = CFG80211_SME_CONNECTING; |
| 531 | } |
| 532 | } else if (wdev->current_bss) |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 533 | return -EALREADY; |
| 534 | |
| 535 | req.ie = ie; |
| 536 | req.ie_len = ie_len; |
| 537 | memcpy(&req.crypto, crypt, sizeof(req.crypto)); |
| 538 | req.use_mfp = use_mfp; |
Johannes Berg | 3e5d764 | 2009-07-07 14:37:26 +0200 | [diff] [blame] | 539 | req.prev_bssid = prev_bssid; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 540 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
| 541 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
Jouni Malinen | 24b6b15 | 2009-11-17 21:35:38 +0200 | [diff] [blame] | 542 | if (!req.bss) { |
| 543 | if (was_connected) |
| 544 | wdev->sme_state = CFG80211_SME_CONNECTED; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 545 | return -ENOENT; |
Jouni Malinen | 24b6b15 | 2009-11-17 21:35:38 +0200 | [diff] [blame] | 546 | } |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 547 | |
| 548 | bss = bss_from_pub(req.bss); |
| 549 | |
| 550 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 551 | if (bss == wdev->auth_bsses[i]) { |
| 552 | slot = i; |
| 553 | break; |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | if (slot < 0) { |
| 558 | err = -ENOTCONN; |
| 559 | goto out; |
| 560 | } |
| 561 | |
| 562 | err = rdev->ops->assoc(&rdev->wiphy, dev, &req); |
| 563 | out: |
Jouni Malinen | 24b6b15 | 2009-11-17 21:35:38 +0200 | [diff] [blame] | 564 | if (err && was_connected) |
| 565 | wdev->sme_state = CFG80211_SME_CONNECTED; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 566 | /* still a reference in wdev->auth_bsses[slot] */ |
| 567 | cfg80211_put_bss(req.bss); |
| 568 | return err; |
| 569 | } |
| 570 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 571 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
| 572 | struct net_device *dev, |
| 573 | struct ieee80211_channel *chan, |
| 574 | const u8 *bssid, const u8 *prev_bssid, |
| 575 | const u8 *ssid, int ssid_len, |
| 576 | const u8 *ie, int ie_len, bool use_mfp, |
| 577 | struct cfg80211_crypto_settings *crypt) |
| 578 | { |
| 579 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 580 | int err; |
| 581 | |
| 582 | wdev_lock(wdev); |
| 583 | err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
| 584 | ssid, ssid_len, ie, ie_len, use_mfp, crypt); |
| 585 | wdev_unlock(wdev); |
| 586 | |
| 587 | return err; |
| 588 | } |
| 589 | |
| 590 | int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
| 591 | struct net_device *dev, const u8 *bssid, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 592 | const u8 *ie, int ie_len, u16 reason, |
| 593 | bool local_state_change) |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 594 | { |
| 595 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 596 | struct cfg80211_deauth_request req; |
| 597 | int i; |
| 598 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 599 | ASSERT_WDEV_LOCK(wdev); |
| 600 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 601 | memset(&req, 0, sizeof(req)); |
| 602 | req.reason_code = reason; |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 603 | req.local_state_change = local_state_change; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 604 | req.ie = ie; |
| 605 | req.ie_len = ie_len; |
| 606 | if (wdev->current_bss && |
| 607 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { |
| 608 | req.bss = &wdev->current_bss->pub; |
| 609 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 610 | if (wdev->auth_bsses[i] && |
| 611 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, ETH_ALEN) == 0) { |
| 612 | req.bss = &wdev->auth_bsses[i]->pub; |
| 613 | break; |
| 614 | } |
| 615 | if (wdev->authtry_bsses[i] && |
| 616 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, ETH_ALEN) == 0) { |
| 617 | req.bss = &wdev->authtry_bsses[i]->pub; |
| 618 | break; |
| 619 | } |
| 620 | } |
| 621 | |
| 622 | if (!req.bss) |
| 623 | return -ENOTCONN; |
| 624 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 625 | return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 626 | } |
| 627 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 628 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
| 629 | struct net_device *dev, const u8 *bssid, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 630 | const u8 *ie, int ie_len, u16 reason, |
| 631 | bool local_state_change) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 632 | { |
| 633 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 634 | int err; |
| 635 | |
| 636 | wdev_lock(wdev); |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 637 | err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason, |
| 638 | local_state_change); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 639 | wdev_unlock(wdev); |
| 640 | |
| 641 | return err; |
| 642 | } |
| 643 | |
| 644 | static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
| 645 | struct net_device *dev, const u8 *bssid, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 646 | const u8 *ie, int ie_len, u16 reason, |
| 647 | bool local_state_change) |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 648 | { |
| 649 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 650 | struct cfg80211_disassoc_request req; |
| 651 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 652 | ASSERT_WDEV_LOCK(wdev); |
| 653 | |
Johannes Berg | f9d6b40 | 2009-07-27 10:22:28 +0200 | [diff] [blame] | 654 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
| 655 | return -ENOTCONN; |
| 656 | |
| 657 | if (WARN_ON(!wdev->current_bss)) |
| 658 | return -ENOTCONN; |
| 659 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 660 | memset(&req, 0, sizeof(req)); |
| 661 | req.reason_code = reason; |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 662 | req.local_state_change = local_state_change; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 663 | req.ie = ie; |
| 664 | req.ie_len = ie_len; |
| 665 | if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) |
| 666 | req.bss = &wdev->current_bss->pub; |
| 667 | else |
| 668 | return -ENOTCONN; |
| 669 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 670 | return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev); |
| 671 | } |
| 672 | |
| 673 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
| 674 | struct net_device *dev, const u8 *bssid, |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 675 | const u8 *ie, int ie_len, u16 reason, |
| 676 | bool local_state_change) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 677 | { |
| 678 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 679 | int err; |
| 680 | |
| 681 | wdev_lock(wdev); |
Jouni Malinen | d5cdfac | 2010-04-04 09:37:19 +0300 | [diff] [blame] | 682 | err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason, |
| 683 | local_state_change); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 684 | wdev_unlock(wdev); |
| 685 | |
| 686 | return err; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, |
| 690 | struct net_device *dev) |
| 691 | { |
| 692 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 693 | struct cfg80211_deauth_request req; |
| 694 | int i; |
| 695 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 696 | ASSERT_WDEV_LOCK(wdev); |
| 697 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 698 | if (!rdev->ops->deauth) |
| 699 | return; |
| 700 | |
| 701 | memset(&req, 0, sizeof(req)); |
| 702 | req.reason_code = WLAN_REASON_DEAUTH_LEAVING; |
| 703 | req.ie = NULL; |
| 704 | req.ie_len = 0; |
| 705 | |
| 706 | if (wdev->current_bss) { |
| 707 | req.bss = &wdev->current_bss->pub; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 708 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 709 | if (wdev->current_bss) { |
| 710 | cfg80211_unhold_bss(wdev->current_bss); |
| 711 | cfg80211_put_bss(&wdev->current_bss->pub); |
| 712 | wdev->current_bss = NULL; |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 717 | if (wdev->auth_bsses[i]) { |
| 718 | req.bss = &wdev->auth_bsses[i]->pub; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 719 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 720 | if (wdev->auth_bsses[i]) { |
| 721 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 722 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 723 | wdev->auth_bsses[i] = NULL; |
| 724 | } |
| 725 | } |
| 726 | if (wdev->authtry_bsses[i]) { |
| 727 | req.bss = &wdev->authtry_bsses[i]->pub; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 728 | rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 729 | if (wdev->authtry_bsses[i]) { |
| 730 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 731 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 732 | wdev->authtry_bsses[i] = NULL; |
| 733 | } |
| 734 | } |
| 735 | } |
| 736 | } |
Jouni Malinen | 9588bbd | 2009-12-23 13:15:41 +0100 | [diff] [blame] | 737 | |
| 738 | void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, |
| 739 | struct ieee80211_channel *chan, |
| 740 | enum nl80211_channel_type channel_type, |
| 741 | unsigned int duration, gfp_t gfp) |
| 742 | { |
| 743 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| 744 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 745 | |
| 746 | nl80211_send_remain_on_channel(rdev, dev, cookie, chan, channel_type, |
| 747 | duration, gfp); |
| 748 | } |
| 749 | EXPORT_SYMBOL(cfg80211_ready_on_channel); |
| 750 | |
| 751 | void cfg80211_remain_on_channel_expired(struct net_device *dev, |
| 752 | u64 cookie, |
| 753 | struct ieee80211_channel *chan, |
| 754 | enum nl80211_channel_type channel_type, |
| 755 | gfp_t gfp) |
| 756 | { |
| 757 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| 758 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 759 | |
| 760 | nl80211_send_remain_on_channel_cancel(rdev, dev, cookie, chan, |
| 761 | channel_type, gfp); |
| 762 | } |
| 763 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); |
Johannes Berg | 98b6218 | 2009-12-23 13:15:44 +0100 | [diff] [blame] | 764 | |
| 765 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
| 766 | struct station_info *sinfo, gfp_t gfp) |
| 767 | { |
| 768 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| 769 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 770 | |
| 771 | nl80211_send_sta_event(rdev, dev, mac_addr, sinfo, gfp); |
| 772 | } |
| 773 | EXPORT_SYMBOL(cfg80211_new_sta); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 774 | |
Jouni Malinen | ec15e68 | 2011-03-23 15:29:52 +0200 | [diff] [blame] | 775 | void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp) |
| 776 | { |
| 777 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| 778 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 779 | |
| 780 | nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp); |
| 781 | } |
| 782 | EXPORT_SYMBOL(cfg80211_del_sta); |
| 783 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 784 | struct cfg80211_mgmt_registration { |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 785 | struct list_head list; |
| 786 | |
| 787 | u32 nlpid; |
| 788 | |
| 789 | int match_len; |
| 790 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 791 | __le16 frame_type; |
| 792 | |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 793 | u8 match[]; |
| 794 | }; |
| 795 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 796 | int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, |
| 797 | u16 frame_type, const u8 *match_data, |
| 798 | int match_len) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 799 | { |
Johannes Berg | 271733c | 2010-10-13 12:06:23 +0200 | [diff] [blame] | 800 | struct wiphy *wiphy = wdev->wiphy; |
| 801 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 802 | struct cfg80211_mgmt_registration *reg, *nreg; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 803 | int err = 0; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 804 | u16 mgmt_type; |
| 805 | |
| 806 | if (!wdev->wiphy->mgmt_stypes) |
| 807 | return -EOPNOTSUPP; |
| 808 | |
| 809 | if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) |
| 810 | return -EINVAL; |
| 811 | |
| 812 | if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) |
| 813 | return -EINVAL; |
| 814 | |
| 815 | mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; |
| 816 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) |
| 817 | return -EINVAL; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 818 | |
| 819 | nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL); |
| 820 | if (!nreg) |
| 821 | return -ENOMEM; |
| 822 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 823 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 824 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 825 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 826 | int mlen = min(match_len, reg->match_len); |
| 827 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 828 | if (frame_type != le16_to_cpu(reg->frame_type)) |
| 829 | continue; |
| 830 | |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 831 | if (memcmp(reg->match, match_data, mlen) == 0) { |
| 832 | err = -EALREADY; |
| 833 | break; |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | if (err) { |
| 838 | kfree(nreg); |
| 839 | goto out; |
| 840 | } |
| 841 | |
| 842 | memcpy(nreg->match, match_data, match_len); |
| 843 | nreg->match_len = match_len; |
| 844 | nreg->nlpid = snd_pid; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 845 | nreg->frame_type = cpu_to_le16(frame_type); |
| 846 | list_add(&nreg->list, &wdev->mgmt_registrations); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 847 | |
Johannes Berg | 271733c | 2010-10-13 12:06:23 +0200 | [diff] [blame] | 848 | if (rdev->ops->mgmt_frame_register) |
| 849 | rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, |
| 850 | frame_type, true); |
| 851 | |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 852 | out: |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 853 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
Johannes Berg | 271733c | 2010-10-13 12:06:23 +0200 | [diff] [blame] | 854 | |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 855 | return err; |
| 856 | } |
| 857 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 858 | void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 859 | { |
Johannes Berg | 271733c | 2010-10-13 12:06:23 +0200 | [diff] [blame] | 860 | struct wiphy *wiphy = wdev->wiphy; |
| 861 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 862 | struct cfg80211_mgmt_registration *reg, *tmp; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 863 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 864 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 865 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 866 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
Johannes Berg | 271733c | 2010-10-13 12:06:23 +0200 | [diff] [blame] | 867 | if (reg->nlpid != nlpid) |
| 868 | continue; |
| 869 | |
| 870 | if (rdev->ops->mgmt_frame_register) { |
| 871 | u16 frame_type = le16_to_cpu(reg->frame_type); |
| 872 | |
| 873 | rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, |
| 874 | frame_type, false); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 875 | } |
Johannes Berg | 271733c | 2010-10-13 12:06:23 +0200 | [diff] [blame] | 876 | |
| 877 | list_del(®->list); |
| 878 | kfree(reg); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 879 | } |
| 880 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 881 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 882 | } |
| 883 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 884 | void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 885 | { |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 886 | struct cfg80211_mgmt_registration *reg, *tmp; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 887 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 888 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 889 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 890 | list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 891 | list_del(®->list); |
| 892 | kfree(reg); |
| 893 | } |
| 894 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 895 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 896 | } |
| 897 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 898 | int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, |
| 899 | struct net_device *dev, |
Johannes Berg | f7ca38d | 2010-11-25 10:02:29 +0100 | [diff] [blame] | 900 | struct ieee80211_channel *chan, bool offchan, |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 901 | enum nl80211_channel_type channel_type, |
Johannes Berg | f7ca38d | 2010-11-25 10:02:29 +0100 | [diff] [blame] | 902 | bool channel_type_valid, unsigned int wait, |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 903 | const u8 *buf, size_t len, u64 *cookie) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 904 | { |
| 905 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 906 | const struct ieee80211_mgmt *mgmt; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 907 | u16 stype; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 908 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 909 | if (!wdev->wiphy->mgmt_stypes) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 910 | return -EOPNOTSUPP; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 911 | |
| 912 | if (!rdev->ops->mgmt_tx) |
| 913 | return -EOPNOTSUPP; |
| 914 | |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 915 | if (len < 24 + 1) |
| 916 | return -EINVAL; |
| 917 | |
| 918 | mgmt = (const struct ieee80211_mgmt *) buf; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 919 | |
| 920 | if (!ieee80211_is_mgmt(mgmt->frame_control)) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 921 | return -EINVAL; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 922 | |
| 923 | stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; |
| 924 | if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4))) |
| 925 | return -EINVAL; |
| 926 | |
| 927 | if (ieee80211_is_action(mgmt->frame_control) && |
| 928 | mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { |
Johannes Berg | 663fcaf | 2010-09-30 21:06:09 +0200 | [diff] [blame] | 929 | int err = 0; |
| 930 | |
Johannes Berg | fe100ac | 2010-08-09 15:52:03 +0200 | [diff] [blame] | 931 | wdev_lock(wdev); |
| 932 | |
Johannes Berg | 663fcaf | 2010-09-30 21:06:09 +0200 | [diff] [blame] | 933 | switch (wdev->iftype) { |
| 934 | case NL80211_IFTYPE_ADHOC: |
| 935 | case NL80211_IFTYPE_STATION: |
| 936 | case NL80211_IFTYPE_P2P_CLIENT: |
| 937 | if (!wdev->current_bss) { |
| 938 | err = -ENOTCONN; |
| 939 | break; |
| 940 | } |
Johannes Berg | fe100ac | 2010-08-09 15:52:03 +0200 | [diff] [blame] | 941 | |
Johannes Berg | 663fcaf | 2010-09-30 21:06:09 +0200 | [diff] [blame] | 942 | if (memcmp(wdev->current_bss->pub.bssid, |
| 943 | mgmt->bssid, ETH_ALEN)) { |
| 944 | err = -ENOTCONN; |
| 945 | break; |
| 946 | } |
| 947 | |
| 948 | /* |
| 949 | * check for IBSS DA must be done by driver as |
| 950 | * cfg80211 doesn't track the stations |
| 951 | */ |
| 952 | if (wdev->iftype == NL80211_IFTYPE_ADHOC) |
| 953 | break; |
| 954 | |
| 955 | /* for station, check that DA is the AP */ |
| 956 | if (memcmp(wdev->current_bss->pub.bssid, |
| 957 | mgmt->da, ETH_ALEN)) { |
| 958 | err = -ENOTCONN; |
| 959 | break; |
| 960 | } |
| 961 | break; |
| 962 | case NL80211_IFTYPE_AP: |
| 963 | case NL80211_IFTYPE_P2P_GO: |
| 964 | case NL80211_IFTYPE_AP_VLAN: |
| 965 | if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN)) |
| 966 | err = -EINVAL; |
| 967 | break; |
Javier Cardona | 0778a6a | 2011-05-03 16:57:08 -0700 | [diff] [blame] | 968 | case NL80211_IFTYPE_MESH_POINT: |
| 969 | if (memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN)) { |
| 970 | err = -EINVAL; |
| 971 | break; |
| 972 | } |
| 973 | /* |
| 974 | * check for mesh DA must be done by driver as |
| 975 | * cfg80211 doesn't track the stations |
| 976 | */ |
| 977 | break; |
Johannes Berg | 663fcaf | 2010-09-30 21:06:09 +0200 | [diff] [blame] | 978 | default: |
| 979 | err = -EOPNOTSUPP; |
| 980 | break; |
| 981 | } |
Johannes Berg | fe100ac | 2010-08-09 15:52:03 +0200 | [diff] [blame] | 982 | wdev_unlock(wdev); |
Johannes Berg | 663fcaf | 2010-09-30 21:06:09 +0200 | [diff] [blame] | 983 | |
| 984 | if (err) |
| 985 | return err; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 986 | } |
| 987 | |
| 988 | if (memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0) |
| 989 | return -EINVAL; |
| 990 | |
| 991 | /* Transmit the Action frame as requested by user space */ |
Johannes Berg | f7ca38d | 2010-11-25 10:02:29 +0100 | [diff] [blame] | 992 | return rdev->ops->mgmt_tx(&rdev->wiphy, dev, chan, offchan, |
| 993 | channel_type, channel_type_valid, |
| 994 | wait, buf, len, cookie); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 995 | } |
| 996 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 997 | bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf, |
| 998 | size_t len, gfp_t gfp) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 999 | { |
| 1000 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 1001 | struct wiphy *wiphy = wdev->wiphy; |
| 1002 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1003 | struct cfg80211_mgmt_registration *reg; |
| 1004 | const struct ieee80211_txrx_stypes *stypes = |
| 1005 | &wiphy->mgmt_stypes[wdev->iftype]; |
| 1006 | struct ieee80211_mgmt *mgmt = (void *)buf; |
| 1007 | const u8 *data; |
| 1008 | int data_len; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1009 | bool result = false; |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1010 | __le16 ftype = mgmt->frame_control & |
| 1011 | cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE); |
| 1012 | u16 stype; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1013 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1014 | stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1015 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1016 | if (!(stypes->rx & BIT(stype))) |
| 1017 | return false; |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1018 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1019 | data = buf + ieee80211_hdrlen(mgmt->frame_control); |
| 1020 | data_len = len - ieee80211_hdrlen(mgmt->frame_control); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1021 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1022 | spin_lock_bh(&wdev->mgmt_registrations_lock); |
| 1023 | |
| 1024 | list_for_each_entry(reg, &wdev->mgmt_registrations, list) { |
| 1025 | if (reg->frame_type != ftype) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1026 | continue; |
| 1027 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1028 | if (reg->match_len > data_len) |
| 1029 | continue; |
| 1030 | |
| 1031 | if (memcmp(reg->match, data, reg->match_len)) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1032 | continue; |
| 1033 | |
| 1034 | /* found match! */ |
| 1035 | |
| 1036 | /* Indicate the received Action frame to user space */ |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1037 | if (nl80211_send_mgmt(rdev, dev, reg->nlpid, freq, |
| 1038 | buf, len, gfp)) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1039 | continue; |
| 1040 | |
| 1041 | result = true; |
| 1042 | break; |
| 1043 | } |
| 1044 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1045 | spin_unlock_bh(&wdev->mgmt_registrations_lock); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1046 | |
| 1047 | return result; |
| 1048 | } |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1049 | EXPORT_SYMBOL(cfg80211_rx_mgmt); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1050 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1051 | void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie, |
| 1052 | const u8 *buf, size_t len, bool ack, gfp_t gfp) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1053 | { |
| 1054 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 1055 | struct wiphy *wiphy = wdev->wiphy; |
| 1056 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 1057 | |
| 1058 | /* Indicate TX status of the Action frame to user space */ |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1059 | nl80211_send_mgmt_tx_status(rdev, dev, cookie, buf, len, ack, gfp); |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 1060 | } |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 1061 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
Juuso Oikarinen | d6dc1a3 | 2010-03-23 09:02:33 +0200 | [diff] [blame] | 1062 | |
| 1063 | void cfg80211_cqm_rssi_notify(struct net_device *dev, |
| 1064 | enum nl80211_cqm_rssi_threshold_event rssi_event, |
| 1065 | gfp_t gfp) |
| 1066 | { |
| 1067 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 1068 | struct wiphy *wiphy = wdev->wiphy; |
| 1069 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 1070 | |
| 1071 | /* Indicate roaming trigger event to user space */ |
| 1072 | nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp); |
| 1073 | } |
| 1074 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |
Johannes Berg | c063dbf | 2010-11-24 08:10:05 +0100 | [diff] [blame] | 1075 | |
| 1076 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, |
| 1077 | const u8 *peer, u32 num_packets, gfp_t gfp) |
| 1078 | { |
| 1079 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 1080 | struct wiphy *wiphy = wdev->wiphy; |
| 1081 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 1082 | |
| 1083 | /* Indicate roaming trigger event to user space */ |
| 1084 | nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp); |
| 1085 | } |
| 1086 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); |
Johannes Berg | e5497d7 | 2011-07-05 16:35:40 +0200 | [diff] [blame^] | 1087 | |
| 1088 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
| 1089 | const u8 *replay_ctr, gfp_t gfp) |
| 1090 | { |
| 1091 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 1092 | struct wiphy *wiphy = wdev->wiphy; |
| 1093 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 1094 | |
| 1095 | nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); |
| 1096 | } |
| 1097 | EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); |