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