Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 1 | /* |
| 2 | * SME code for cfg80211's connect emulation. |
| 3 | * |
| 4 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> |
| 5 | * Copyright (C) 2009 Intel Corporation. All rights reserved. |
| 6 | */ |
| 7 | |
| 8 | #include <linux/etherdevice.h> |
| 9 | #include <linux/if_arp.h> |
| 10 | #include <linux/workqueue.h> |
| 11 | #include <net/cfg80211.h> |
| 12 | #include <net/rtnetlink.h> |
| 13 | #include "nl80211.h" |
| 14 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 15 | struct cfg80211_conn { |
| 16 | struct cfg80211_connect_params params; |
| 17 | /* these are sub-states of the _CONNECTING sme_state */ |
| 18 | enum { |
| 19 | CFG80211_CONN_IDLE, |
| 20 | CFG80211_CONN_SCANNING, |
| 21 | CFG80211_CONN_SCAN_AGAIN, |
| 22 | CFG80211_CONN_AUTHENTICATE_NEXT, |
| 23 | CFG80211_CONN_AUTHENTICATING, |
| 24 | CFG80211_CONN_ASSOCIATE_NEXT, |
| 25 | CFG80211_CONN_ASSOCIATING, |
| 26 | } state; |
| 27 | u8 bssid[ETH_ALEN]; |
| 28 | u8 *ie; |
| 29 | size_t ie_len; |
| 30 | bool auto_auth; |
| 31 | }; |
| 32 | |
| 33 | |
| 34 | static int cfg80211_conn_scan(struct wireless_dev *wdev) |
| 35 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 36 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 37 | struct cfg80211_scan_request *request; |
| 38 | int n_channels, err; |
| 39 | |
| 40 | ASSERT_RTNL(); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 41 | ASSERT_RDEV_LOCK(rdev); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 42 | ASSERT_WDEV_LOCK(wdev); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 43 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 44 | if (rdev->scan_req) |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 45 | return -EBUSY; |
| 46 | |
| 47 | if (wdev->conn->params.channel) { |
| 48 | n_channels = 1; |
| 49 | } else { |
| 50 | enum ieee80211_band band; |
| 51 | n_channels = 0; |
| 52 | |
| 53 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 54 | if (!wdev->wiphy->bands[band]) |
| 55 | continue; |
| 56 | n_channels += wdev->wiphy->bands[band]->n_channels; |
| 57 | } |
| 58 | } |
| 59 | request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + |
| 60 | sizeof(request->channels[0]) * n_channels, |
| 61 | GFP_KERNEL); |
| 62 | if (!request) |
| 63 | return -ENOMEM; |
| 64 | |
| 65 | request->channels = (void *)((char *)request + sizeof(*request)); |
| 66 | if (wdev->conn->params.channel) |
| 67 | request->channels[0] = wdev->conn->params.channel; |
| 68 | else { |
| 69 | int i = 0, j; |
| 70 | enum ieee80211_band band; |
| 71 | |
| 72 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 73 | if (!wdev->wiphy->bands[band]) |
| 74 | continue; |
| 75 | for (j = 0; j < wdev->wiphy->bands[band]->n_channels; |
| 76 | i++, j++) |
| 77 | request->channels[i] = |
| 78 | &wdev->wiphy->bands[band]->channels[j]; |
| 79 | } |
| 80 | } |
| 81 | request->n_channels = n_channels; |
| 82 | request->ssids = (void *)(request->channels + n_channels); |
| 83 | request->n_ssids = 1; |
| 84 | |
| 85 | memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, |
| 86 | wdev->conn->params.ssid_len); |
| 87 | request->ssids[0].ssid_len = wdev->conn->params.ssid_len; |
| 88 | |
Johannes Berg | 463d018 | 2009-07-14 00:33:35 +0200 | [diff] [blame^] | 89 | request->dev = wdev->netdev; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 90 | request->wiphy = &rdev->wiphy; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 91 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 92 | rdev->scan_req = request; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 93 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 94 | err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 95 | if (!err) { |
| 96 | wdev->conn->state = CFG80211_CONN_SCANNING; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 97 | nl80211_send_scan_start(rdev, wdev->netdev); |
Johannes Berg | 463d018 | 2009-07-14 00:33:35 +0200 | [diff] [blame^] | 98 | dev_hold(wdev->netdev); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 99 | } else { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 100 | rdev->scan_req = NULL; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 101 | kfree(request); |
| 102 | } |
| 103 | return err; |
| 104 | } |
| 105 | |
| 106 | static int cfg80211_conn_do_work(struct wireless_dev *wdev) |
| 107 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 108 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 109 | struct cfg80211_connect_params *params; |
| 110 | int err; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 111 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 112 | ASSERT_WDEV_LOCK(wdev); |
| 113 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 114 | if (!wdev->conn) |
| 115 | return 0; |
| 116 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 117 | params = &wdev->conn->params; |
| 118 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 119 | switch (wdev->conn->state) { |
| 120 | case CFG80211_CONN_SCAN_AGAIN: |
| 121 | return cfg80211_conn_scan(wdev); |
| 122 | case CFG80211_CONN_AUTHENTICATE_NEXT: |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 123 | BUG_ON(!rdev->ops->auth); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 124 | wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 125 | return __cfg80211_mlme_auth(rdev, wdev->netdev, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 126 | params->channel, params->auth_type, |
| 127 | params->bssid, |
| 128 | params->ssid, params->ssid_len, |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 129 | NULL, 0, |
| 130 | params->key, params->key_len, |
| 131 | params->key_idx); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 132 | case CFG80211_CONN_ASSOCIATE_NEXT: |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 133 | BUG_ON(!rdev->ops->assoc); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 134 | wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
Johannes Berg | 3e5d764 | 2009-07-07 14:37:26 +0200 | [diff] [blame] | 135 | /* |
| 136 | * We could, later, implement roaming here and then actually |
| 137 | * set prev_bssid to non-NULL. But then we need to be aware |
| 138 | * that some APs don't like that -- so we'd need to retry |
| 139 | * the association. |
| 140 | */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 141 | err = __cfg80211_mlme_assoc(rdev, wdev->netdev, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 142 | params->channel, params->bssid, |
| 143 | NULL, |
| 144 | params->ssid, params->ssid_len, |
| 145 | params->ie, params->ie_len, |
| 146 | false, ¶ms->crypto); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 147 | if (err) |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 148 | __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 149 | NULL, 0, |
| 150 | WLAN_REASON_DEAUTH_LEAVING); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 151 | return err; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 152 | default: |
| 153 | return 0; |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | void cfg80211_conn_work(struct work_struct *work) |
| 158 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 159 | struct cfg80211_registered_device *rdev = |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 160 | container_of(work, struct cfg80211_registered_device, conn_work); |
| 161 | struct wireless_dev *wdev; |
| 162 | |
| 163 | rtnl_lock(); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 164 | cfg80211_lock_rdev(rdev); |
| 165 | mutex_lock(&rdev->devlist_mtx); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 166 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 167 | list_for_each_entry(wdev, &rdev->netdev_list, list) { |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 168 | wdev_lock(wdev); |
| 169 | if (!netif_running(wdev->netdev)) { |
| 170 | wdev_unlock(wdev); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 171 | continue; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 172 | } |
| 173 | if (wdev->sme_state != CFG80211_SME_CONNECTING) { |
| 174 | wdev_unlock(wdev); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 175 | continue; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 176 | } |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 177 | if (cfg80211_conn_do_work(wdev)) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 178 | __cfg80211_connect_result( |
| 179 | wdev->netdev, |
| 180 | wdev->conn->params.bssid, |
| 181 | NULL, 0, NULL, 0, |
| 182 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
| 183 | false); |
| 184 | wdev_unlock(wdev); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 185 | } |
| 186 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 187 | mutex_unlock(&rdev->devlist_mtx); |
| 188 | cfg80211_unlock_rdev(rdev); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 189 | rtnl_unlock(); |
| 190 | } |
| 191 | |
| 192 | static bool cfg80211_get_conn_bss(struct wireless_dev *wdev) |
| 193 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 194 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 195 | struct cfg80211_bss *bss; |
| 196 | u16 capa = WLAN_CAPABILITY_ESS; |
| 197 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 198 | ASSERT_WDEV_LOCK(wdev); |
| 199 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 200 | if (wdev->conn->params.privacy) |
| 201 | capa |= WLAN_CAPABILITY_PRIVACY; |
| 202 | |
| 203 | bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid, |
| 204 | wdev->conn->params.ssid, |
| 205 | wdev->conn->params.ssid_len, |
| 206 | WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, |
| 207 | capa); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 208 | if (!bss) |
| 209 | return false; |
| 210 | |
| 211 | memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); |
| 212 | wdev->conn->params.bssid = wdev->conn->bssid; |
| 213 | wdev->conn->params.channel = bss->channel; |
| 214 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 215 | schedule_work(&rdev->conn_work); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 216 | |
| 217 | cfg80211_put_bss(bss); |
| 218 | return true; |
| 219 | } |
| 220 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 221 | static void __cfg80211_sme_scan_done(struct net_device *dev) |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 222 | { |
| 223 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 224 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 225 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 226 | ASSERT_WDEV_LOCK(wdev); |
| 227 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 228 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
| 229 | return; |
| 230 | |
Zhu Yi | d4b1a68 | 2009-07-16 17:34:14 +0800 | [diff] [blame] | 231 | if (!wdev->conn) |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 232 | return; |
| 233 | |
| 234 | if (wdev->conn->state != CFG80211_CONN_SCANNING && |
| 235 | wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) |
| 236 | return; |
| 237 | |
| 238 | if (!cfg80211_get_conn_bss(wdev)) { |
| 239 | /* not found */ |
| 240 | if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 241 | schedule_work(&rdev->conn_work); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 242 | else |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 243 | __cfg80211_connect_result( |
| 244 | wdev->netdev, |
| 245 | wdev->conn->params.bssid, |
| 246 | NULL, 0, NULL, 0, |
| 247 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
| 248 | false); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 249 | } |
| 250 | } |
| 251 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 252 | void cfg80211_sme_scan_done(struct net_device *dev) |
| 253 | { |
| 254 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 255 | |
| 256 | wdev_lock(wdev); |
| 257 | __cfg80211_sme_scan_done(dev); |
| 258 | wdev_unlock(wdev); |
| 259 | } |
| 260 | |
| 261 | void cfg80211_sme_rx_auth(struct net_device *dev, |
| 262 | const u8 *buf, size_t len) |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 263 | { |
| 264 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 265 | struct wiphy *wiphy = wdev->wiphy; |
| 266 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
| 267 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
| 268 | u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); |
| 269 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 270 | ASSERT_WDEV_LOCK(wdev); |
| 271 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 272 | /* should only RX auth frames when connecting */ |
| 273 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
| 274 | return; |
| 275 | |
| 276 | if (WARN_ON(!wdev->conn)) |
| 277 | return; |
| 278 | |
| 279 | if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && |
| 280 | wdev->conn->auto_auth && |
| 281 | wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { |
| 282 | /* select automatically between only open, shared, leap */ |
| 283 | switch (wdev->conn->params.auth_type) { |
| 284 | case NL80211_AUTHTYPE_OPEN_SYSTEM: |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 285 | if (wdev->connect_keys) |
| 286 | wdev->conn->params.auth_type = |
| 287 | NL80211_AUTHTYPE_SHARED_KEY; |
| 288 | else |
| 289 | wdev->conn->params.auth_type = |
| 290 | NL80211_AUTHTYPE_NETWORK_EAP; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 291 | break; |
| 292 | case NL80211_AUTHTYPE_SHARED_KEY: |
| 293 | wdev->conn->params.auth_type = |
| 294 | NL80211_AUTHTYPE_NETWORK_EAP; |
| 295 | break; |
| 296 | default: |
| 297 | /* huh? */ |
| 298 | wdev->conn->params.auth_type = |
| 299 | NL80211_AUTHTYPE_OPEN_SYSTEM; |
| 300 | break; |
| 301 | } |
| 302 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
| 303 | schedule_work(&rdev->conn_work); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 304 | } else if (status_code != WLAN_STATUS_SUCCESS) { |
Johannes Berg | 4bde0f7 | 2009-07-07 23:46:51 +0200 | [diff] [blame] | 305 | __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
| 306 | status_code, false); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 307 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING && |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 308 | wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
| 309 | wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
| 310 | schedule_work(&rdev->conn_work); |
| 311 | } |
| 312 | } |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 313 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 314 | void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
| 315 | const u8 *req_ie, size_t req_ie_len, |
| 316 | const u8 *resp_ie, size_t resp_ie_len, |
| 317 | u16 status, bool wextev) |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 318 | { |
| 319 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 320 | struct cfg80211_bss *bss; |
| 321 | #ifdef CONFIG_WIRELESS_EXT |
| 322 | union iwreq_data wrqu; |
| 323 | #endif |
| 324 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 325 | ASSERT_WDEV_LOCK(wdev); |
| 326 | |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 327 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
| 328 | return; |
| 329 | |
Johannes Berg | e45cd82 | 2009-07-02 09:58:04 +0200 | [diff] [blame] | 330 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
| 331 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), dev, |
| 332 | bssid, req_ie, req_ie_len, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 333 | resp_ie, resp_ie_len, GFP_KERNEL); |
Johannes Berg | e45cd82 | 2009-07-02 09:58:04 +0200 | [diff] [blame] | 334 | else |
| 335 | nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, |
| 336 | bssid, req_ie, req_ie_len, |
| 337 | resp_ie, resp_ie_len, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 338 | status, GFP_KERNEL); |
Johannes Berg | e45cd82 | 2009-07-02 09:58:04 +0200 | [diff] [blame] | 339 | |
| 340 | #ifdef CONFIG_WIRELESS_EXT |
| 341 | if (wextev) { |
| 342 | if (req_ie && status == WLAN_STATUS_SUCCESS) { |
| 343 | memset(&wrqu, 0, sizeof(wrqu)); |
| 344 | wrqu.data.length = req_ie_len; |
Zhu Yi | 3409ff7 | 2009-07-20 11:47:44 +0800 | [diff] [blame] | 345 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie); |
Johannes Berg | e45cd82 | 2009-07-02 09:58:04 +0200 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | if (resp_ie && status == WLAN_STATUS_SUCCESS) { |
| 349 | memset(&wrqu, 0, sizeof(wrqu)); |
| 350 | wrqu.data.length = resp_ie_len; |
| 351 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie); |
| 352 | } |
| 353 | |
| 354 | memset(&wrqu, 0, sizeof(wrqu)); |
| 355 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 356 | if (bssid && status == WLAN_STATUS_SUCCESS) |
| 357 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
| 358 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
| 359 | } |
| 360 | #endif |
| 361 | |
| 362 | if (status == WLAN_STATUS_SUCCESS && |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 363 | wdev->sme_state == CFG80211_SME_IDLE) |
| 364 | goto success; |
Johannes Berg | e45cd82 | 2009-07-02 09:58:04 +0200 | [diff] [blame] | 365 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 366 | if (wdev->sme_state != CFG80211_SME_CONNECTING) |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 367 | return; |
| 368 | |
| 369 | if (wdev->current_bss) { |
| 370 | cfg80211_unhold_bss(wdev->current_bss); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 371 | cfg80211_put_bss(&wdev->current_bss->pub); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 372 | wdev->current_bss = NULL; |
| 373 | } |
| 374 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 375 | if (wdev->conn) |
| 376 | wdev->conn->state = CFG80211_CONN_IDLE; |
| 377 | |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 378 | if (status != WLAN_STATUS_SUCCESS) { |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 379 | wdev->sme_state = CFG80211_SME_IDLE; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 380 | kfree(wdev->conn); |
| 381 | wdev->conn = NULL; |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 382 | kfree(wdev->connect_keys); |
| 383 | wdev->connect_keys = NULL; |
| 384 | return; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 385 | } |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 386 | |
| 387 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
| 388 | wdev->ssid, wdev->ssid_len, |
| 389 | WLAN_CAPABILITY_ESS, |
| 390 | WLAN_CAPABILITY_ESS); |
| 391 | |
| 392 | if (WARN_ON(!bss)) |
| 393 | return; |
| 394 | |
| 395 | cfg80211_hold_bss(bss_from_pub(bss)); |
| 396 | wdev->current_bss = bss_from_pub(bss); |
| 397 | |
| 398 | success: |
| 399 | wdev->sme_state = CFG80211_SME_CONNECTED; |
| 400 | cfg80211_upload_connect_keys(wdev); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 401 | } |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 402 | |
| 403 | void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, |
| 404 | const u8 *req_ie, size_t req_ie_len, |
| 405 | const u8 *resp_ie, size_t resp_ie_len, |
| 406 | u16 status, gfp_t gfp) |
| 407 | { |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 408 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 409 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
| 410 | struct cfg80211_event *ev; |
| 411 | unsigned long flags; |
| 412 | |
| 413 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
| 414 | if (!ev) |
| 415 | return; |
| 416 | |
| 417 | ev->type = EVENT_CONNECT_RESULT; |
| 418 | memcpy(ev->cr.bssid, bssid, ETH_ALEN); |
| 419 | ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev); |
| 420 | ev->cr.req_ie_len = req_ie_len; |
| 421 | memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len); |
| 422 | ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; |
| 423 | ev->cr.resp_ie_len = resp_ie_len; |
| 424 | memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len); |
| 425 | ev->cr.status = status; |
| 426 | |
| 427 | spin_lock_irqsave(&wdev->event_lock, flags); |
| 428 | list_add_tail(&ev->list, &wdev->event_list); |
| 429 | spin_unlock_irqrestore(&wdev->event_lock, flags); |
| 430 | schedule_work(&rdev->event_work); |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 431 | } |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 432 | EXPORT_SYMBOL(cfg80211_connect_result); |
| 433 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 434 | void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, |
| 435 | const u8 *req_ie, size_t req_ie_len, |
| 436 | const u8 *resp_ie, size_t resp_ie_len) |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 437 | { |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 438 | struct cfg80211_bss *bss; |
| 439 | #ifdef CONFIG_WIRELESS_EXT |
| 440 | union iwreq_data wrqu; |
| 441 | #endif |
| 442 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 443 | ASSERT_WDEV_LOCK(wdev); |
| 444 | |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 445 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
| 446 | return; |
| 447 | |
| 448 | if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED)) |
| 449 | return; |
| 450 | |
| 451 | /* internal error -- how did we get to CONNECTED w/o BSS? */ |
| 452 | if (WARN_ON(!wdev->current_bss)) { |
| 453 | return; |
| 454 | } |
| 455 | |
| 456 | cfg80211_unhold_bss(wdev->current_bss); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 457 | cfg80211_put_bss(&wdev->current_bss->pub); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 458 | wdev->current_bss = NULL; |
| 459 | |
| 460 | bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, |
| 461 | wdev->ssid, wdev->ssid_len, |
| 462 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
| 463 | |
| 464 | if (WARN_ON(!bss)) |
| 465 | return; |
| 466 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 467 | cfg80211_hold_bss(bss_from_pub(bss)); |
| 468 | wdev->current_bss = bss_from_pub(bss); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 469 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 470 | nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid, |
| 471 | req_ie, req_ie_len, resp_ie, resp_ie_len, |
| 472 | GFP_KERNEL); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 473 | |
| 474 | #ifdef CONFIG_WIRELESS_EXT |
| 475 | if (req_ie) { |
| 476 | memset(&wrqu, 0, sizeof(wrqu)); |
| 477 | wrqu.data.length = req_ie_len; |
Zhu Yi | 3409ff7 | 2009-07-20 11:47:44 +0800 | [diff] [blame] | 478 | wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 479 | &wrqu, req_ie); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | if (resp_ie) { |
| 483 | memset(&wrqu, 0, sizeof(wrqu)); |
| 484 | wrqu.data.length = resp_ie_len; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 485 | wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
| 486 | &wrqu, resp_ie); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | memset(&wrqu, 0, sizeof(wrqu)); |
| 490 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 491 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 492 | wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 493 | #endif |
| 494 | } |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 495 | |
| 496 | void cfg80211_roamed(struct net_device *dev, const u8 *bssid, |
| 497 | const u8 *req_ie, size_t req_ie_len, |
| 498 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) |
| 499 | { |
| 500 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 501 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
| 502 | struct cfg80211_event *ev; |
| 503 | unsigned long flags; |
| 504 | |
| 505 | ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); |
| 506 | if (!ev) |
| 507 | return; |
| 508 | |
| 509 | ev->type = EVENT_ROAMED; |
| 510 | memcpy(ev->rm.bssid, bssid, ETH_ALEN); |
| 511 | ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); |
| 512 | ev->rm.req_ie_len = req_ie_len; |
| 513 | memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); |
| 514 | ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; |
| 515 | ev->rm.resp_ie_len = resp_ie_len; |
| 516 | memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); |
| 517 | |
| 518 | spin_lock_irqsave(&wdev->event_lock, flags); |
| 519 | list_add_tail(&ev->list, &wdev->event_list); |
| 520 | spin_unlock_irqrestore(&wdev->event_lock, flags); |
| 521 | schedule_work(&rdev->event_work); |
| 522 | } |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 523 | EXPORT_SYMBOL(cfg80211_roamed); |
| 524 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 525 | void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 526 | size_t ie_len, u16 reason, bool from_ap) |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 527 | { |
| 528 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 529 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
| 530 | int i; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 531 | #ifdef CONFIG_WIRELESS_EXT |
| 532 | union iwreq_data wrqu; |
| 533 | #endif |
| 534 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 535 | ASSERT_WDEV_LOCK(wdev); |
| 536 | |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 537 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
| 538 | return; |
| 539 | |
| 540 | if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED)) |
| 541 | return; |
| 542 | |
| 543 | if (wdev->current_bss) { |
| 544 | cfg80211_unhold_bss(wdev->current_bss); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 545 | cfg80211_put_bss(&wdev->current_bss->pub); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | wdev->current_bss = NULL; |
| 549 | wdev->sme_state = CFG80211_SME_IDLE; |
| 550 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 551 | if (wdev->conn) { |
| 552 | kfree(wdev->conn->ie); |
| 553 | wdev->conn->ie = NULL; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 554 | kfree(wdev->conn); |
| 555 | wdev->conn = NULL; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 556 | } |
| 557 | |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 558 | nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
| 559 | |
| 560 | /* |
| 561 | * Delete all the keys ... pairwise keys can't really |
| 562 | * exist any more anyway, but default keys might. |
| 563 | */ |
| 564 | if (rdev->ops->del_key) |
| 565 | for (i = 0; i < 6; i++) |
| 566 | rdev->ops->del_key(wdev->wiphy, dev, i, NULL); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 567 | |
| 568 | #ifdef CONFIG_WIRELESS_EXT |
| 569 | memset(&wrqu, 0, sizeof(wrqu)); |
| 570 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 571 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
| 572 | #endif |
| 573 | } |
| 574 | |
| 575 | void cfg80211_disconnected(struct net_device *dev, u16 reason, |
| 576 | u8 *ie, size_t ie_len, gfp_t gfp) |
| 577 | { |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 578 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 579 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
| 580 | struct cfg80211_event *ev; |
| 581 | unsigned long flags; |
| 582 | |
| 583 | ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
| 584 | if (!ev) |
| 585 | return; |
| 586 | |
| 587 | ev->type = EVENT_DISCONNECTED; |
| 588 | ev->dc.ie = ((u8 *)ev) + sizeof(*ev); |
| 589 | ev->dc.ie_len = ie_len; |
| 590 | memcpy((void *)ev->dc.ie, ie, ie_len); |
| 591 | ev->dc.reason = reason; |
| 592 | |
| 593 | spin_lock_irqsave(&wdev->event_lock, flags); |
| 594 | list_add_tail(&ev->list, &wdev->event_list); |
| 595 | spin_unlock_irqrestore(&wdev->event_lock, flags); |
| 596 | schedule_work(&rdev->event_work); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 597 | } |
| 598 | EXPORT_SYMBOL(cfg80211_disconnected); |
| 599 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 600 | int __cfg80211_connect(struct cfg80211_registered_device *rdev, |
| 601 | struct net_device *dev, |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 602 | struct cfg80211_connect_params *connect, |
| 603 | struct cfg80211_cached_keys *connkeys) |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 604 | { |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 605 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 606 | int err; |
| 607 | |
| 608 | ASSERT_WDEV_LOCK(wdev); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 609 | |
| 610 | if (wdev->sme_state != CFG80211_SME_IDLE) |
| 611 | return -EALREADY; |
| 612 | |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 613 | if (WARN_ON(wdev->connect_keys)) { |
| 614 | kfree(wdev->connect_keys); |
| 615 | wdev->connect_keys = NULL; |
| 616 | } |
| 617 | |
| 618 | if (connkeys && connkeys->def >= 0) { |
| 619 | int idx; |
| 620 | |
| 621 | idx = connkeys->def; |
| 622 | /* If given a WEP key we may need it for shared key auth */ |
| 623 | if (connkeys->params[idx].cipher == WLAN_CIPHER_SUITE_WEP40 || |
| 624 | connkeys->params[idx].cipher == WLAN_CIPHER_SUITE_WEP104) { |
| 625 | connect->key_idx = idx; |
| 626 | connect->key = connkeys->params[idx].key; |
| 627 | connect->key_len = connkeys->params[idx].key_len; |
| 628 | } |
| 629 | } |
| 630 | |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 631 | if (!rdev->ops->connect) { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 632 | if (!rdev->ops->auth || !rdev->ops->assoc) |
| 633 | return -EOPNOTSUPP; |
| 634 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 635 | if (WARN_ON(wdev->conn)) |
| 636 | return -EINPROGRESS; |
| 637 | |
| 638 | wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); |
| 639 | if (!wdev->conn) |
| 640 | return -ENOMEM; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 641 | |
| 642 | /* |
| 643 | * Copy all parameters, and treat explicitly IEs, BSSID, SSID. |
| 644 | */ |
| 645 | memcpy(&wdev->conn->params, connect, sizeof(*connect)); |
| 646 | if (connect->bssid) { |
| 647 | wdev->conn->params.bssid = wdev->conn->bssid; |
| 648 | memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); |
| 649 | } |
| 650 | |
| 651 | if (connect->ie) { |
| 652 | wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, |
| 653 | GFP_KERNEL); |
| 654 | wdev->conn->params.ie = wdev->conn->ie; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 655 | if (!wdev->conn->ie) { |
| 656 | kfree(wdev->conn); |
| 657 | wdev->conn = NULL; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 658 | return -ENOMEM; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 659 | } |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 660 | } |
| 661 | |
| 662 | if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { |
| 663 | wdev->conn->auto_auth = true; |
| 664 | /* start with open system ... should mostly work */ |
| 665 | wdev->conn->params.auth_type = |
| 666 | NL80211_AUTHTYPE_OPEN_SYSTEM; |
| 667 | } else { |
| 668 | wdev->conn->auto_auth = false; |
| 669 | } |
| 670 | |
| 671 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
| 672 | wdev->ssid_len = connect->ssid_len; |
| 673 | wdev->conn->params.ssid = wdev->ssid; |
| 674 | wdev->conn->params.ssid_len = connect->ssid_len; |
| 675 | |
| 676 | /* don't care about result -- but fill bssid & channel */ |
| 677 | if (!wdev->conn->params.bssid || !wdev->conn->params.channel) |
| 678 | cfg80211_get_conn_bss(wdev); |
| 679 | |
| 680 | wdev->sme_state = CFG80211_SME_CONNECTING; |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 681 | wdev->connect_keys = connkeys; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 682 | |
| 683 | /* we're good if we have both BSSID and channel */ |
| 684 | if (wdev->conn->params.bssid && wdev->conn->params.channel) { |
| 685 | wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
| 686 | err = cfg80211_conn_do_work(wdev); |
| 687 | } else { |
| 688 | /* otherwise we'll need to scan for the AP first */ |
| 689 | err = cfg80211_conn_scan(wdev); |
| 690 | /* |
| 691 | * If we can't scan right now, then we need to scan again |
| 692 | * after the current scan finished, since the parameters |
| 693 | * changed (unless we find a good AP anyway). |
| 694 | */ |
| 695 | if (err == -EBUSY) { |
| 696 | err = 0; |
| 697 | wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; |
| 698 | } |
| 699 | } |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 700 | if (err) { |
| 701 | kfree(wdev->conn); |
| 702 | wdev->conn = NULL; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 703 | wdev->sme_state = CFG80211_SME_IDLE; |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 704 | wdev->connect_keys = NULL; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 705 | } |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 706 | |
| 707 | return err; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 708 | } else { |
| 709 | wdev->sme_state = CFG80211_SME_CONNECTING; |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 710 | wdev->connect_keys = connkeys; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 711 | err = rdev->ops->connect(&rdev->wiphy, dev, connect); |
| 712 | if (err) { |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 713 | wdev->connect_keys = NULL; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 714 | wdev->sme_state = CFG80211_SME_IDLE; |
| 715 | return err; |
| 716 | } |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 717 | |
| 718 | memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
| 719 | wdev->ssid_len = connect->ssid_len; |
| 720 | |
| 721 | return 0; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 722 | } |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 723 | } |
| 724 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 725 | int cfg80211_connect(struct cfg80211_registered_device *rdev, |
| 726 | struct net_device *dev, |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 727 | struct cfg80211_connect_params *connect, |
| 728 | struct cfg80211_cached_keys *connkeys) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 729 | { |
| 730 | int err; |
| 731 | |
| 732 | wdev_lock(dev->ieee80211_ptr); |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 733 | err = __cfg80211_connect(rdev, dev, connect, connkeys); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 734 | wdev_unlock(dev->ieee80211_ptr); |
| 735 | |
| 736 | return err; |
| 737 | } |
| 738 | |
| 739 | int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
| 740 | struct net_device *dev, u16 reason, bool wextev) |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 741 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 742 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 743 | int err; |
| 744 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 745 | ASSERT_WDEV_LOCK(wdev); |
| 746 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 747 | if (wdev->sme_state == CFG80211_SME_IDLE) |
| 748 | return -EINVAL; |
| 749 | |
Johannes Berg | fffd093 | 2009-07-08 14:22:54 +0200 | [diff] [blame] | 750 | kfree(wdev->connect_keys); |
| 751 | wdev->connect_keys = NULL; |
| 752 | |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 753 | if (!rdev->ops->disconnect) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 754 | if (!rdev->ops->deauth) |
| 755 | return -EOPNOTSUPP; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 756 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 757 | /* was it connected by userspace SME? */ |
| 758 | if (!wdev->conn) { |
| 759 | cfg80211_mlme_down(rdev, dev); |
| 760 | return 0; |
| 761 | } |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 762 | |
| 763 | if (wdev->sme_state == CFG80211_SME_CONNECTING && |
| 764 | (wdev->conn->state == CFG80211_CONN_SCANNING || |
| 765 | wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { |
| 766 | wdev->sme_state = CFG80211_SME_IDLE; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 767 | kfree(wdev->conn); |
| 768 | wdev->conn = NULL; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 769 | return 0; |
| 770 | } |
| 771 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 772 | /* wdev->conn->params.bssid must be set if > SCANNING */ |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 773 | err = __cfg80211_mlme_deauth(rdev, dev, |
| 774 | wdev->conn->params.bssid, |
| 775 | NULL, 0, reason); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 776 | if (err) |
| 777 | return err; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 778 | } else { |
| 779 | err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); |
| 780 | if (err) |
| 781 | return err; |
| 782 | } |
| 783 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 784 | if (wdev->sme_state == CFG80211_SME_CONNECTED) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 785 | __cfg80211_disconnected(dev, NULL, 0, 0, false); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 786 | else if (wdev->sme_state == CFG80211_SME_CONNECTING) |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 787 | __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, |
| 788 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 789 | wextev); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 790 | |
| 791 | return 0; |
| 792 | } |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 793 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 794 | int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
| 795 | struct net_device *dev, |
| 796 | u16 reason, bool wextev) |
| 797 | { |
| 798 | int err; |
| 799 | |
| 800 | wdev_lock(dev->ieee80211_ptr); |
| 801 | err = __cfg80211_disconnect(rdev, dev, reason, wextev); |
| 802 | wdev_unlock(dev->ieee80211_ptr); |
| 803 | |
| 804 | return err; |
| 805 | } |
| 806 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 807 | void cfg80211_sme_disassoc(struct net_device *dev, int idx) |
| 808 | { |
| 809 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 810 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); |
| 811 | u8 bssid[ETH_ALEN]; |
| 812 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 813 | ASSERT_WDEV_LOCK(wdev); |
| 814 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 815 | if (!wdev->conn) |
| 816 | return; |
| 817 | |
| 818 | if (wdev->conn->state == CFG80211_CONN_IDLE) |
| 819 | return; |
| 820 | |
| 821 | /* |
| 822 | * Ok, so the association was made by this SME -- we don't |
| 823 | * want it any more so deauthenticate too. |
| 824 | */ |
| 825 | |
| 826 | if (!wdev->auth_bsses[idx]) |
| 827 | return; |
| 828 | |
| 829 | memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN); |
Johannes Berg | ec3f149 | 2009-07-10 02:45:38 +0200 | [diff] [blame] | 830 | if (__cfg80211_mlme_deauth(rdev, dev, bssid, |
| 831 | NULL, 0, WLAN_REASON_DEAUTH_LEAVING)) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 832 | /* whatever -- assume gone anyway */ |
| 833 | cfg80211_unhold_bss(wdev->auth_bsses[idx]); |
| 834 | cfg80211_put_bss(&wdev->auth_bsses[idx]->pub); |
| 835 | wdev->auth_bsses[idx] = NULL; |
| 836 | } |
| 837 | } |