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> |
| 11 | #include <net/cfg80211.h> |
| 12 | #include "core.h" |
| 13 | #include "nl80211.h" |
| 14 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 15 | 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] | 16 | { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 17 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 18 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 19 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 20 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
| 21 | u8 *bssid = mgmt->bssid; |
| 22 | int i; |
| 23 | u16 status = le16_to_cpu(mgmt->u.auth.status_code); |
| 24 | bool done = false; |
| 25 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 26 | might_sleep(); |
| 27 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 28 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 29 | if (wdev->authtry_bsses[i] && |
| 30 | memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, |
| 31 | ETH_ALEN) == 0) { |
| 32 | if (status == WLAN_STATUS_SUCCESS) { |
| 33 | wdev->auth_bsses[i] = wdev->authtry_bsses[i]; |
| 34 | } else { |
| 35 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 36 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 37 | } |
| 38 | wdev->authtry_bsses[i] = NULL; |
| 39 | done = true; |
| 40 | break; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | WARN_ON(!done); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 45 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 46 | nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 47 | cfg80211_sme_rx_auth(dev, buf, len); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 48 | } |
| 49 | EXPORT_SYMBOL(cfg80211_send_rx_auth); |
| 50 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 51 | 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] | 52 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 53 | u16 status_code; |
| 54 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 55 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 56 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 57 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
| 58 | u8 *ie = mgmt->u.assoc_resp.variable; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 59 | int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable); |
| 60 | bool done; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 61 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 62 | might_sleep(); |
| 63 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 64 | status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); |
| 65 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 66 | nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 67 | |
| 68 | cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs, |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 69 | status_code, GFP_KERNEL); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 70 | |
| 71 | if (status_code == WLAN_STATUS_SUCCESS) { |
| 72 | for (i = 0; wdev->current_bss && i < MAX_AUTH_BSSES; i++) { |
| 73 | if (wdev->auth_bsses[i] == wdev->current_bss) { |
| 74 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 75 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 76 | wdev->auth_bsses[i] = NULL; |
| 77 | done = true; |
| 78 | break; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | WARN_ON(!done); |
| 83 | } |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 84 | } |
| 85 | EXPORT_SYMBOL(cfg80211_send_rx_assoc); |
| 86 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 87 | void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len) |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 88 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 89 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 90 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 91 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 92 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 93 | const u8 *bssid = mgmt->bssid; |
| 94 | int i; |
| 95 | bool done = false; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 96 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 97 | might_sleep(); |
| 98 | |
| 99 | nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 100 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 101 | if (wdev->current_bss && |
| 102 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { |
| 103 | done = true; |
| 104 | cfg80211_unhold_bss(wdev->current_bss); |
| 105 | cfg80211_put_bss(&wdev->current_bss->pub); |
| 106 | wdev->current_bss = NULL; |
| 107 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 108 | if (wdev->auth_bsses[i] && |
| 109 | memcmp(wdev->auth_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) { |
| 110 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 111 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 112 | wdev->auth_bsses[i] = NULL; |
| 113 | done = true; |
| 114 | break; |
| 115 | } |
| 116 | if (wdev->authtry_bsses[i] && |
| 117 | memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) { |
| 118 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 119 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 120 | wdev->authtry_bsses[i] = NULL; |
| 121 | done = true; |
| 122 | break; |
| 123 | } |
| 124 | } |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 125 | |
| 126 | WARN_ON(!done); |
| 127 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 128 | if (wdev->sme_state == CFG80211_SME_CONNECTED) { |
| 129 | u16 reason_code; |
| 130 | bool from_ap; |
| 131 | |
| 132 | reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
| 133 | |
| 134 | from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0; |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 135 | __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 136 | reason_code, from_ap); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 137 | } else if (wdev->sme_state == CFG80211_SME_CONNECTING) { |
| 138 | cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 139 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
| 140 | GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 141 | } |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 142 | } |
Jouni Malinen | 53b46b8 | 2009-03-27 20:53:56 +0200 | [diff] [blame] | 143 | EXPORT_SYMBOL(cfg80211_send_deauth); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 144 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 145 | void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len) |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 146 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 147 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 148 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 149 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 150 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 151 | const u8 *bssid = mgmt->bssid; |
| 152 | int i; |
| 153 | u16 reason_code; |
| 154 | bool from_ap; |
| 155 | bool done = false; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 156 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 157 | might_sleep(); |
| 158 | |
| 159 | nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 160 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 161 | if (!wdev->sme_state == CFG80211_SME_CONNECTED) |
| 162 | return; |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 163 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 164 | if (wdev->current_bss && |
| 165 | memcmp(wdev->current_bss, bssid, ETH_ALEN) == 0) { |
| 166 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 167 | if (wdev->authtry_bsses[i] || wdev->auth_bsses[i]) |
| 168 | continue; |
| 169 | wdev->auth_bsses[i] = wdev->current_bss; |
| 170 | wdev->current_bss = NULL; |
| 171 | done = true; |
| 172 | cfg80211_sme_disassoc(dev, i); |
| 173 | break; |
| 174 | } |
| 175 | WARN_ON(!done); |
| 176 | } else |
| 177 | WARN_ON(1); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 178 | |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 179 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 180 | reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); |
| 181 | |
| 182 | from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0; |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 183 | __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 184 | reason_code, from_ap); |
Jouni Malinen | 6039f6d | 2009-03-19 13:39:21 +0200 | [diff] [blame] | 185 | } |
Jouni Malinen | 53b46b8 | 2009-03-27 20:53:56 +0200 | [diff] [blame] | 186 | EXPORT_SYMBOL(cfg80211_send_disassoc); |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 187 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 188 | void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr) |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 189 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 190 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 191 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 192 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 193 | int i; |
| 194 | bool done = false; |
| 195 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 196 | might_sleep(); |
| 197 | |
| 198 | nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 199 | if (wdev->sme_state == CFG80211_SME_CONNECTING) |
| 200 | cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 201 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
| 202 | GFP_KERNEL); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 203 | |
| 204 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { |
| 205 | if (wdev->authtry_bsses[i] && |
| 206 | memcmp(wdev->authtry_bsses[i]->pub.bssid, |
| 207 | addr, ETH_ALEN) == 0) { |
| 208 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 209 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 210 | wdev->authtry_bsses[i] = NULL; |
| 211 | done = true; |
| 212 | break; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | WARN_ON(!done); |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 217 | } |
| 218 | EXPORT_SYMBOL(cfg80211_send_auth_timeout); |
| 219 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 220 | void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr) |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 221 | { |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 222 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 223 | struct wiphy *wiphy = wdev->wiphy; |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 224 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 225 | int i; |
| 226 | bool done = false; |
| 227 | |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 228 | might_sleep(); |
| 229 | |
| 230 | nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 231 | if (wdev->sme_state == CFG80211_SME_CONNECTING) |
| 232 | cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, |
Johannes Berg | cb0b4be | 2009-07-07 03:56:07 +0200 | [diff] [blame] | 233 | WLAN_STATUS_UNSPECIFIED_FAILURE, |
| 234 | GFP_KERNEL); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 235 | |
| 236 | for (i = 0; addr && i < MAX_AUTH_BSSES; i++) { |
| 237 | if (wdev->auth_bsses[i] && |
| 238 | memcmp(wdev->auth_bsses[i]->pub.bssid, |
| 239 | addr, ETH_ALEN) == 0) { |
| 240 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 241 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 242 | wdev->auth_bsses[i] = NULL; |
| 243 | done = true; |
| 244 | break; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | WARN_ON(!done); |
Jouni Malinen | 1965c85 | 2009-04-22 21:38:25 +0300 | [diff] [blame] | 249 | } |
| 250 | EXPORT_SYMBOL(cfg80211_send_assoc_timeout); |
| 251 | |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 252 | void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, |
| 253 | enum nl80211_key_type key_type, int key_id, |
Johannes Berg | e6d6e34 | 2009-07-01 21:26:47 +0200 | [diff] [blame] | 254 | const u8 *tsc, gfp_t gfp) |
Jouni Malinen | a3b8b05 | 2009-03-27 21:59:49 +0200 | [diff] [blame] | 255 | { |
| 256 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
| 257 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | f58d4ed | 2009-06-19 02:45:21 +0200 | [diff] [blame] | 258 | #ifdef CONFIG_WIRELESS_EXT |
| 259 | union iwreq_data wrqu; |
Johannes Berg | e6d6e34 | 2009-07-01 21:26:47 +0200 | [diff] [blame] | 260 | char *buf = kmalloc(128, gfp); |
Johannes Berg | f58d4ed | 2009-06-19 02:45:21 +0200 | [diff] [blame] | 261 | |
| 262 | if (buf) { |
| 263 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" |
| 264 | "keyid=%d %scast addr=%pM)", key_id, |
| 265 | key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni", |
| 266 | addr); |
| 267 | memset(&wrqu, 0, sizeof(wrqu)); |
| 268 | wrqu.data.length = strlen(buf); |
| 269 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); |
| 270 | kfree(buf); |
| 271 | } |
| 272 | #endif |
| 273 | |
Johannes Berg | e6d6e34 | 2009-07-01 21:26:47 +0200 | [diff] [blame] | 274 | 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] | 275 | } |
| 276 | EXPORT_SYMBOL(cfg80211_michael_mic_failure); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 277 | |
| 278 | /* some MLME handling for userspace SME */ |
| 279 | int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, |
| 280 | struct net_device *dev, struct ieee80211_channel *chan, |
| 281 | enum nl80211_auth_type auth_type, const u8 *bssid, |
| 282 | const u8 *ssid, int ssid_len, |
| 283 | const u8 *ie, int ie_len) |
| 284 | { |
| 285 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 286 | struct cfg80211_auth_request req; |
| 287 | struct cfg80211_internal_bss *bss; |
| 288 | int i, err, slot = -1, nfree = 0; |
| 289 | |
Johannes Berg | 0a9b5e1 | 2009-07-02 18:26:18 +0200 | [diff] [blame] | 290 | if (wdev->current_bss && |
| 291 | memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0) |
| 292 | return -EALREADY; |
| 293 | |
| 294 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 295 | if (wdev->authtry_bsses[i] && |
| 296 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, |
| 297 | ETH_ALEN) == 0) |
| 298 | return -EALREADY; |
| 299 | if (wdev->auth_bsses[i] && |
| 300 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, |
| 301 | ETH_ALEN) == 0) |
| 302 | return -EALREADY; |
| 303 | } |
| 304 | |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 305 | memset(&req, 0, sizeof(req)); |
| 306 | |
| 307 | req.ie = ie; |
| 308 | req.ie_len = ie_len; |
| 309 | req.auth_type = auth_type; |
| 310 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
| 311 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
| 312 | if (!req.bss) |
| 313 | return -ENOENT; |
| 314 | |
| 315 | bss = bss_from_pub(req.bss); |
| 316 | |
| 317 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 318 | if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) { |
| 319 | slot = i; |
| 320 | nfree++; |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /* we need one free slot for disassoc and one for this auth */ |
| 325 | if (nfree < 2) { |
| 326 | err = -ENOSPC; |
| 327 | goto out; |
| 328 | } |
| 329 | |
| 330 | wdev->authtry_bsses[slot] = bss; |
| 331 | cfg80211_hold_bss(bss); |
| 332 | |
| 333 | err = rdev->ops->auth(&rdev->wiphy, dev, &req); |
| 334 | if (err) { |
| 335 | wdev->authtry_bsses[slot] = NULL; |
| 336 | cfg80211_unhold_bss(bss); |
| 337 | } |
| 338 | |
| 339 | out: |
| 340 | if (err) |
| 341 | cfg80211_put_bss(req.bss); |
| 342 | return err; |
| 343 | } |
| 344 | |
| 345 | int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, |
| 346 | struct net_device *dev, struct ieee80211_channel *chan, |
Johannes Berg | 3e5d764 | 2009-07-07 14:37:26 +0200 | [diff] [blame] | 347 | const u8 *bssid, const u8 *prev_bssid, |
| 348 | const u8 *ssid, int ssid_len, |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 349 | const u8 *ie, int ie_len, bool use_mfp, |
| 350 | struct cfg80211_crypto_settings *crypt) |
| 351 | { |
| 352 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 353 | struct cfg80211_assoc_request req; |
| 354 | struct cfg80211_internal_bss *bss; |
| 355 | int i, err, slot = -1; |
| 356 | |
| 357 | memset(&req, 0, sizeof(req)); |
| 358 | |
| 359 | if (wdev->current_bss) |
| 360 | return -EALREADY; |
| 361 | |
| 362 | req.ie = ie; |
| 363 | req.ie_len = ie_len; |
| 364 | memcpy(&req.crypto, crypt, sizeof(req.crypto)); |
| 365 | req.use_mfp = use_mfp; |
Johannes Berg | 3e5d764 | 2009-07-07 14:37:26 +0200 | [diff] [blame] | 366 | req.prev_bssid = prev_bssid; |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 367 | req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len, |
| 368 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
| 369 | if (!req.bss) |
| 370 | return -ENOENT; |
| 371 | |
| 372 | bss = bss_from_pub(req.bss); |
| 373 | |
| 374 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 375 | if (bss == wdev->auth_bsses[i]) { |
| 376 | slot = i; |
| 377 | break; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | if (slot < 0) { |
| 382 | err = -ENOTCONN; |
| 383 | goto out; |
| 384 | } |
| 385 | |
| 386 | err = rdev->ops->assoc(&rdev->wiphy, dev, &req); |
| 387 | out: |
| 388 | /* still a reference in wdev->auth_bsses[slot] */ |
| 389 | cfg80211_put_bss(req.bss); |
| 390 | return err; |
| 391 | } |
| 392 | |
| 393 | int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, |
| 394 | struct net_device *dev, const u8 *bssid, |
| 395 | const u8 *ie, int ie_len, u16 reason) |
| 396 | { |
| 397 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 398 | struct cfg80211_deauth_request req; |
| 399 | int i; |
| 400 | |
| 401 | memset(&req, 0, sizeof(req)); |
| 402 | req.reason_code = reason; |
| 403 | req.ie = ie; |
| 404 | req.ie_len = ie_len; |
| 405 | if (wdev->current_bss && |
| 406 | memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) { |
| 407 | req.bss = &wdev->current_bss->pub; |
| 408 | } else for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 409 | if (wdev->auth_bsses[i] && |
| 410 | memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, ETH_ALEN) == 0) { |
| 411 | req.bss = &wdev->auth_bsses[i]->pub; |
| 412 | break; |
| 413 | } |
| 414 | if (wdev->authtry_bsses[i] && |
| 415 | memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, ETH_ALEN) == 0) { |
| 416 | req.bss = &wdev->authtry_bsses[i]->pub; |
| 417 | break; |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | if (!req.bss) |
| 422 | return -ENOTCONN; |
| 423 | |
| 424 | return rdev->ops->deauth(&rdev->wiphy, dev, &req); |
| 425 | } |
| 426 | |
| 427 | int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, |
| 428 | struct net_device *dev, const u8 *bssid, |
| 429 | const u8 *ie, int ie_len, u16 reason) |
| 430 | { |
| 431 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 432 | struct cfg80211_disassoc_request req; |
| 433 | |
| 434 | memset(&req, 0, sizeof(req)); |
| 435 | req.reason_code = reason; |
| 436 | req.ie = ie; |
| 437 | req.ie_len = ie_len; |
| 438 | if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) |
| 439 | req.bss = &wdev->current_bss->pub; |
| 440 | else |
| 441 | return -ENOTCONN; |
| 442 | |
| 443 | return rdev->ops->disassoc(&rdev->wiphy, dev, &req); |
| 444 | } |
| 445 | |
| 446 | void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, |
| 447 | struct net_device *dev) |
| 448 | { |
| 449 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 450 | struct cfg80211_deauth_request req; |
| 451 | int i; |
| 452 | |
| 453 | if (!rdev->ops->deauth) |
| 454 | return; |
| 455 | |
| 456 | memset(&req, 0, sizeof(req)); |
| 457 | req.reason_code = WLAN_REASON_DEAUTH_LEAVING; |
| 458 | req.ie = NULL; |
| 459 | req.ie_len = 0; |
| 460 | |
| 461 | if (wdev->current_bss) { |
| 462 | req.bss = &wdev->current_bss->pub; |
| 463 | rdev->ops->deauth(&rdev->wiphy, dev, &req); |
| 464 | if (wdev->current_bss) { |
| 465 | cfg80211_unhold_bss(wdev->current_bss); |
| 466 | cfg80211_put_bss(&wdev->current_bss->pub); |
| 467 | wdev->current_bss = NULL; |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | for (i = 0; i < MAX_AUTH_BSSES; i++) { |
| 472 | if (wdev->auth_bsses[i]) { |
| 473 | req.bss = &wdev->auth_bsses[i]->pub; |
| 474 | rdev->ops->deauth(&rdev->wiphy, dev, &req); |
| 475 | if (wdev->auth_bsses[i]) { |
| 476 | cfg80211_unhold_bss(wdev->auth_bsses[i]); |
| 477 | cfg80211_put_bss(&wdev->auth_bsses[i]->pub); |
| 478 | wdev->auth_bsses[i] = NULL; |
| 479 | } |
| 480 | } |
| 481 | if (wdev->authtry_bsses[i]) { |
| 482 | req.bss = &wdev->authtry_bsses[i]->pub; |
| 483 | rdev->ops->deauth(&rdev->wiphy, dev, &req); |
| 484 | if (wdev->authtry_bsses[i]) { |
| 485 | cfg80211_unhold_bss(wdev->authtry_bsses[i]); |
| 486 | cfg80211_put_bss(&wdev->authtry_bsses[i]->pub); |
| 487 | wdev->authtry_bsses[i] = NULL; |
| 488 | } |
| 489 | } |
| 490 | } |
| 491 | } |