diff options
| -rw-r--r-- | include/net/cfg80211.h | 6 | ||||
| -rw-r--r-- | net/wireless/core.c | 7 | ||||
| -rw-r--r-- | net/wireless/core.h | 8 | ||||
| -rw-r--r-- | net/wireless/mlme.c | 79 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 4 | ||||
| -rw-r--r-- | net/wireless/scan.c | 7 | ||||
| -rw-r--r-- | net/wireless/sme.c | 395 |
7 files changed, 474 insertions, 32 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 68e11321ed74..24fab439d415 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1209,6 +1209,9 @@ extern void wiphy_unregister(struct wiphy *wiphy); */ extern void wiphy_free(struct wiphy *wiphy); +/* internal struct */ +struct cfg80211_conn; + /** * struct wireless_dev - wireless per-netdev state * @@ -1242,9 +1245,10 @@ struct wireless_dev { u8 ssid_len; enum { CFG80211_SME_IDLE, - CFG80211_SME_CONNECTING, /* ->connect called */ + CFG80211_SME_CONNECTING, CFG80211_SME_CONNECTED, } sme_state; + struct cfg80211_conn *conn; #ifdef CONFIG_WIRELESS_EXT /* wext data */ diff --git a/net/wireless/core.c b/net/wireless/core.c index 314e00f70e3b..a0a679704612 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -321,6 +321,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) } INIT_WORK(&drv->rfkill_sync, cfg80211_rfkill_sync_work); + INIT_WORK(&drv->conn_work, cfg80211_conn_work); /* * Initialize wiphy parameters to IEEE 802.11 MIB default values. @@ -481,6 +482,8 @@ void wiphy_unregister(struct wiphy *wiphy) /* unlock again before freeing */ mutex_unlock(&drv->mtx); + cancel_work_sync(&drv->conn_work); + cfg80211_debugfs_drv_del(drv); /* If this device got a regulatory hint tell core its @@ -569,6 +572,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, break; } break; + case NETDEV_DOWN: + kfree(wdev->conn); + wdev->conn = NULL; + break; case NETDEV_UP: #ifdef CONFIG_WIRELESS_EXT if (wdev->iftype != NL80211_IFTYPE_ADHOC) diff --git a/net/wireless/core.h b/net/wireless/core.h index f93f96f85d2b..2c0f64252f3d 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -62,6 +62,8 @@ struct cfg80211_registered_device { struct genl_info *testmode_info; #endif + struct work_struct conn_work; + #ifdef CONFIG_CFG80211_DEBUGFS /* Debugfs entries */ struct wiphy_debugfsdentries { @@ -181,8 +183,14 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev, int cfg80211_disconnect(struct cfg80211_registered_device *rdev, struct net_device *dev, u16 reason); +void cfg80211_conn_work(struct work_struct *work); + /* internal helpers */ int cfg80211_validate_key_settings(struct key_params *params, int key_idx, const u8 *mac_addr); +void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, + size_t ie_len, u16 reason, bool from_ap); +void cfg80211_sme_scan_done(struct net_device *dev); +void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len); #endif /* __NET_WIRELESS_CORE_H */ diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index c4e6d4b84a46..3427fe73d3c3 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -16,58 +16,105 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gf { struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + nl80211_send_rx_auth(rdev, dev, buf, len, gfp); + cfg80211_sme_rx_auth(dev, buf, len); } EXPORT_SYMBOL(cfg80211_send_rx_auth); void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp) { - struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; + u16 status_code; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; + u8 *ie = mgmt->u.assoc_resp.variable; + int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable); + + status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); + nl80211_send_rx_assoc(rdev, dev, buf, len, gfp); + + cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs, + status_code, gfp); } EXPORT_SYMBOL(cfg80211_send_rx_assoc); void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp) { - struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; + nl80211_send_deauth(rdev, dev, buf, len, gfp); + + if (wdev->sme_state == CFG80211_SME_CONNECTED) { + u16 reason_code; + bool from_ap; + + reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); + + from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0; + __cfg80211_disconnected(dev, gfp, NULL, 0, + reason_code, from_ap); + + wdev->sme_state = CFG80211_SME_IDLE; + } else if (wdev->sme_state == CFG80211_SME_CONNECTING) { + cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, gfp); + } } EXPORT_SYMBOL(cfg80211_send_deauth); void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp) { - struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; + nl80211_send_disassoc(rdev, dev, buf, len, gfp); -} -EXPORT_SYMBOL(cfg80211_send_disassoc); -static void cfg80211_wext_disconnected(struct net_device *dev) -{ -#ifdef CONFIG_WIRELESS_EXT - union iwreq_data wrqu; - memset(&wrqu, 0, sizeof(wrqu)); - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); -#endif + if (wdev->sme_state == CFG80211_SME_CONNECTED) { + u16 reason_code; + bool from_ap; + + reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); + + from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0; + __cfg80211_disconnected(dev, gfp, NULL, 0, + reason_code, from_ap); + + wdev->sme_state = CFG80211_SME_IDLE; + } } +EXPORT_SYMBOL(cfg80211_send_disassoc); void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp) { - struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); nl80211_send_auth_timeout(rdev, dev, addr, gfp); - cfg80211_wext_disconnected(dev); + if (wdev->sme_state == CFG80211_SME_CONNECTING) + cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, gfp); + wdev->sme_state = CFG80211_SME_IDLE; } EXPORT_SYMBOL(cfg80211_send_auth_timeout); void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp) { - struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); nl80211_send_assoc_timeout(rdev, dev, addr, gfp); - cfg80211_wext_disconnected(dev); + if (wdev->sme_state == CFG80211_SME_CONNECTING) + cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, gfp); + wdev->sme_state = CFG80211_SME_IDLE; } EXPORT_SYMBOL(cfg80211_send_assoc_timeout); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 89dd3793e03c..89aa9e781d10 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -351,12 +351,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, #undef CMD - if (dev->ops->connect) { + if (dev->ops->connect || dev->ops->auth) { i++; NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); } - if (dev->ops->disconnect) { + if (dev->ops->disconnect || dev->ops->deauth) { i++; NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); } diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 261a06386822..82b33e708488 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -30,6 +30,13 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req); + /* + * This must be before sending the other events! + * Otherwise, wpa_supplicant gets completely confused with + * wext events. + */ + cfg80211_sme_scan_done(dev); + if (aborted) nl80211_send_scan_aborted(wiphy_to_dev(request->wiphy), dev); else diff --git a/net/wireless/sme.c b/net/wireless/sme.c index fc117031d0bb..3abb04729873 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -12,6 +12,266 @@ #include <net/rtnetlink.h> #include "nl80211.h" +struct cfg80211_conn { + struct cfg80211_connect_params params; + /* these are sub-states of the _CONNECTING sme_state */ + enum { + CFG80211_CONN_IDLE, + CFG80211_CONN_SCANNING, + CFG80211_CONN_SCAN_AGAIN, + CFG80211_CONN_AUTHENTICATE_NEXT, + CFG80211_CONN_AUTHENTICATING, + CFG80211_CONN_ASSOCIATE_NEXT, + CFG80211_CONN_ASSOCIATING, + } state; + u8 bssid[ETH_ALEN]; + u8 *ie; + size_t ie_len; + bool auto_auth; +}; + + +static int cfg80211_conn_scan(struct wireless_dev *wdev) +{ + struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy); + struct cfg80211_scan_request *request; + int n_channels, err; + + ASSERT_RTNL(); + + if (drv->scan_req) + return -EBUSY; + + if (wdev->conn->params.channel) { + n_channels = 1; + } else { + enum ieee80211_band band; + n_channels = 0; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + if (!wdev->wiphy->bands[band]) + continue; + n_channels += wdev->wiphy->bands[band]->n_channels; + } + } + request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + + sizeof(request->channels[0]) * n_channels, + GFP_KERNEL); + if (!request) + return -ENOMEM; + + request->channels = (void *)((char *)request + sizeof(*request)); + if (wdev->conn->params.channel) + request->channels[0] = wdev->conn->params.channel; + else { + int i = 0, j; + enum ieee80211_band band; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + if (!wdev->wiphy->bands[band]) + continue; + for (j = 0; j < wdev->wiphy->bands[band]->n_channels; + i++, j++) + request->channels[i] = + &wdev->wiphy->bands[band]->channels[j]; + } + } + request->n_channels = n_channels; + request->ssids = (void *)(request->channels + n_channels); + request->n_ssids = 1; + + memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, + wdev->conn->params.ssid_len); + request->ssids[0].ssid_len = wdev->conn->params.ssid_len; + + request->ifidx = wdev->netdev->ifindex; + request->wiphy = &drv->wiphy; + + drv->scan_req = request; + + err = drv->ops->scan(wdev->wiphy, wdev->netdev, request); + if (!err) { + wdev->conn->state = CFG80211_CONN_SCANNING; + nl80211_send_scan_start(drv, wdev->netdev); + } else { + drv->scan_req = NULL; + kfree(request); + } + return err; +} + +static int cfg80211_conn_do_work(struct wireless_dev *wdev) +{ + struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy); + union { + struct cfg80211_auth_request auth_req; + struct cfg80211_assoc_request assoc_req; + } u; + + memset(&u, 0, sizeof(u)); + + if (!wdev->conn) + return 0; + + switch (wdev->conn->state) { + case CFG80211_CONN_SCAN_AGAIN: + return cfg80211_conn_scan(wdev); + case CFG80211_CONN_AUTHENTICATE_NEXT: + u.auth_req.chan = wdev->conn->params.channel; + u.auth_req.peer_addr = wdev->conn->params.bssid; + u.auth_req.ssid = wdev->conn->params.ssid; + u.auth_req.ssid_len = wdev->conn->params.ssid_len; + u.auth_req.auth_type = wdev->conn->params.auth_type; + u.auth_req.ie = NULL; + u.auth_req.ie_len = 0; + wdev->conn->state = CFG80211_CONN_AUTHENTICATING; + BUG_ON(!drv->ops->auth); + return drv->ops->auth(wdev->wiphy, wdev->netdev, &u.auth_req); + case CFG80211_CONN_ASSOCIATE_NEXT: + u.assoc_req.chan = wdev->conn->params.channel; + u.assoc_req.peer_addr = wdev->conn->params.bssid; + u.assoc_req.ssid = wdev->conn->params.ssid; + u.assoc_req.ssid_len = wdev->conn->params.ssid_len; + u.assoc_req.ie = wdev->conn->params.ie; + u.assoc_req.ie_len = wdev->conn->params.ie_len; + u.assoc_req.use_mfp = false; + memcpy(&u.assoc_req.crypto, &wdev->conn->params.crypto, + sizeof(u.assoc_req.crypto)); + wdev->conn->state = CFG80211_CONN_ASSOCIATING; + BUG_ON(!drv->ops->assoc); + return drv->ops->assoc(wdev->wiphy, wdev->netdev, + &u.assoc_req); + default: + return 0; + } +} + +void cfg80211_conn_work(struct work_struct *work) +{ + struct cfg80211_registered_device *drv = + container_of(work, struct cfg80211_registered_device, conn_work); + struct wireless_dev *wdev; + + rtnl_lock(); + mutex_lock(&drv->devlist_mtx); + + list_for_each_entry(wdev, &drv->netdev_list, list) { + if (!netif_running(wdev->netdev)) + continue; + if (wdev->sme_state != CFG80211_SME_CONNECTING) + continue; + if (cfg80211_conn_do_work(wdev)) + cfg80211_connect_result(wdev->netdev, + wdev->conn->params.bssid, + NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_ATOMIC); + } + + mutex_unlock(&drv->devlist_mtx); + rtnl_unlock(); +} + +static bool cfg80211_get_conn_bss(struct wireless_dev *wdev) +{ + struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy); + struct cfg80211_bss *bss; + u16 capa = WLAN_CAPABILITY_ESS; + + if (wdev->conn->params.privacy) + capa |= WLAN_CAPABILITY_PRIVACY; + + bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid, + wdev->conn->params.ssid, + wdev->conn->params.ssid_len, + WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, + capa); + + if (!bss) + return false; + + memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); + wdev->conn->params.bssid = wdev->conn->bssid; + wdev->conn->params.channel = bss->channel; + wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; + schedule_work(&drv->conn_work); + + cfg80211_put_bss(bss); + return true; +} + +void cfg80211_sme_scan_done(struct net_device *dev) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy); + + if (wdev->sme_state != CFG80211_SME_CONNECTING) + return; + + if (WARN_ON(!wdev->conn)) + return; + + if (wdev->conn->state != CFG80211_CONN_SCANNING && + wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) + return; + + if (!cfg80211_get_conn_bss(wdev)) { + /* not found */ + if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) + schedule_work(&drv->conn_work); + else + cfg80211_connect_result(dev, wdev->conn->params.bssid, + NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_ATOMIC); + return; + } +} + +void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; + u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); + + /* should only RX auth frames when connecting */ + if (wdev->sme_state != CFG80211_SME_CONNECTING) + return; + + if (WARN_ON(!wdev->conn)) + return; + + if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && + wdev->conn->auto_auth && + wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { + /* select automatically between only open, shared, leap */ + switch (wdev->conn->params.auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + wdev->conn->params.auth_type = + NL80211_AUTHTYPE_SHARED_KEY; + break; + case NL80211_AUTHTYPE_SHARED_KEY: + wdev->conn->params.auth_type = + NL80211_AUTHTYPE_NETWORK_EAP; + break; + default: + /* huh? */ + wdev->conn->params.auth_type = + NL80211_AUTHTYPE_OPEN_SYSTEM; + break; + } + wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; + schedule_work(&rdev->conn_work); + } else if (status_code != WLAN_STATUS_SUCCESS) + wdev->sme_state = CFG80211_SME_IDLE; + else if (wdev->sme_state == CFG80211_SME_CONNECTING && + wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { + wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; + schedule_work(&rdev->conn_work); + } +} void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, const u8 *req_ie, size_t req_ie_len, @@ -27,7 +287,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return; - if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING)) + if (wdev->sme_state != CFG80211_SME_CONNECTING) return; if (wdev->current_bss) { @@ -53,6 +313,9 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, wdev->sme_state = CFG80211_SME_IDLE; } + if (wdev->conn) + wdev->conn->state = CFG80211_CONN_IDLE; + nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, bssid, req_ie, req_ie_len, resp_ie, resp_ie_len, status, gfp); @@ -72,7 +335,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, memset(&wrqu, 0, sizeof(wrqu)); wrqu.ap_addr.sa_family = ARPHRD_ETHER; - if (bssid) + if (bssid && status == WLAN_STATUS_SUCCESS) memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); #endif @@ -138,9 +401,8 @@ void cfg80211_roamed(struct net_device *dev, const u8 *bssid, } EXPORT_SYMBOL(cfg80211_roamed); -static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, - u8 *ie, size_t ie_len, u16 reason, - bool from_ap) +void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie, + size_t ie_len, u16 reason, bool from_ap) { struct wireless_dev *wdev = dev->ieee80211_ptr; #ifdef CONFIG_WIRELESS_EXT @@ -161,6 +423,11 @@ static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, wdev->current_bss = NULL; wdev->sme_state = CFG80211_SME_IDLE; + if (wdev->conn) { + kfree(wdev->conn->ie); + wdev->conn->ie = NULL; + } + nl80211_send_disconnected(wiphy_to_dev(wdev->wiphy), dev, reason, ie, ie_len, from_ap, gfp); @@ -174,7 +441,7 @@ static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, void cfg80211_disconnected(struct net_device *dev, u16 reason, u8 *ie, size_t ie_len, gfp_t gfp) { - __cfg80211_disconnected(dev, reason, ie, ie_len, true, gfp); + __cfg80211_disconnected(dev, gfp, ie, ie_len, reason, true); } EXPORT_SYMBOL(cfg80211_disconnected); @@ -189,7 +456,74 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev, return -EALREADY; if (!rdev->ops->connect) { - return -EOPNOTSUPP; + if (!rdev->ops->auth || !rdev->ops->assoc) + return -EOPNOTSUPP; + + if (!wdev->conn) { + wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); + if (!wdev->conn) + return -ENOMEM; + } else + memset(wdev->conn, 0, sizeof(*wdev->conn)); + + /* + * Copy all parameters, and treat explicitly IEs, BSSID, SSID. + */ + memcpy(&wdev->conn->params, connect, sizeof(*connect)); + if (connect->bssid) { + wdev->conn->params.bssid = wdev->conn->bssid; + memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); + } + + if (connect->ie) { + wdev->conn->ie = kmemdup(connect->ie, connect->ie_len, + GFP_KERNEL); + wdev->conn->params.ie = wdev->conn->ie; + if (!wdev->conn->ie) + return -ENOMEM; + } + + if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { + wdev->conn->auto_auth = true; + /* start with open system ... should mostly work */ + wdev->conn->params.auth_type = + NL80211_AUTHTYPE_OPEN_SYSTEM; + } else { + wdev->conn->auto_auth = false; + } + + memcpy(wdev->ssid, connect->ssid, connect->ssid_len); + wdev->ssid_len = connect->ssid_len; + wdev->conn->params.ssid = wdev->ssid; + wdev->conn->params.ssid_len = connect->ssid_len; + + /* don't care about result -- but fill bssid & channel */ + if (!wdev->conn->params.bssid || !wdev->conn->params.channel) + cfg80211_get_conn_bss(wdev); + + wdev->sme_state = CFG80211_SME_CONNECTING; + + /* we're good if we have both BSSID and channel */ + if (wdev->conn->params.bssid && wdev->conn->params.channel) { + wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; + err = cfg80211_conn_do_work(wdev); + } else { + /* otherwise we'll need to scan for the AP first */ + err = cfg80211_conn_scan(wdev); + /* + * If we can't scan right now, then we need to scan again + * after the current scan finished, since the parameters + * changed (unless we find a good AP anyway). + */ + if (err == -EBUSY) { + err = 0; + wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; + } + } + if (err) + wdev->sme_state = CFG80211_SME_IDLE; + + return err; } else { wdev->sme_state = CFG80211_SME_CONNECTING; err = rdev->ops->connect(&rdev->wiphy, dev, connect); @@ -197,28 +531,63 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev, wdev->sme_state = CFG80211_SME_IDLE; return err; } - } - memcpy(wdev->ssid, connect->ssid, connect->ssid_len); - wdev->ssid_len = connect->ssid_len; + memcpy(wdev->ssid, connect->ssid, connect->ssid_len); + wdev->ssid_len = connect->ssid_len; - return 0; + return 0; + } } int cfg80211_disconnect(struct cfg80211_registered_device *rdev, struct net_device *dev, u16 reason) { + struct wireless_dev *wdev = dev->ieee80211_ptr; int err; + if (wdev->sme_state == CFG80211_SME_IDLE) + return -EINVAL; + if (!rdev->ops->disconnect) { - return -EOPNOTSUPP; + struct cfg80211_deauth_request deauth; + u8 bssid[ETH_ALEN]; + + /* internal bug. */ + if (WARN_ON(!wdev->conn)) + return -EINVAL; + + if (wdev->sme_state == CFG80211_SME_CONNECTING && + (wdev->conn->state == CFG80211_CONN_SCANNING || + wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) { + wdev->sme_state = CFG80211_SME_IDLE; + return 0; + } + + if (!rdev->ops->deauth) + return -EOPNOTSUPP; + + memset(&deauth, 0, sizeof(deauth)); + + /* wdev->conn->params.bssid must be set if > SCANNING */ + memcpy(bssid, wdev->conn->params.bssid, ETH_ALEN); + deauth.peer_addr = bssid; + deauth.reason_code = reason; + + err = rdev->ops->deauth(&rdev->wiphy, dev, &deauth); + if (err) + return err; } else { err = rdev->ops->disconnect(&rdev->wiphy, dev, reason); if (err) return err; } - __cfg80211_disconnected(dev, 0, NULL, 0, false, GFP_KERNEL); + if (wdev->sme_state == CFG80211_SME_CONNECTED) + __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, 0, false); + else if (wdev->sme_state == CFG80211_SME_CONNECTING) + cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); return 0; } |