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-rwxr-xr-xnet/wireless_ath/sme.c1041
1 files changed, 0 insertions, 1041 deletions
diff --git a/net/wireless_ath/sme.c b/net/wireless_ath/sme.c
deleted file mode 100755
index 38d3248..0000000
--- a/net/wireless_ath/sme.c
+++ /dev/null
@@ -1,1041 +0,0 @@
-/*
- * SME code for cfg80211's connect emulation.
- *
- * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
- * Copyright (C) 2009 Intel Corporation. All rights reserved.
- */
-
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <linux/wireless.h>
-#include <linux/export.h>
-#include <net/iw_handler.h>
-#include <net/cfg80211.h>
-#include <net/rtnetlink.h>
-#include "nl80211.h"
-#include "reg.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,
- CFG80211_CONN_DEAUTH_ASSOC_FAIL,
- } state;
- u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
- u8 *ie;
- size_t ie_len;
- bool auto_auth, prev_bssid_valid;
-};
-
-static bool cfg80211_is_all_idle(void)
-{
- struct cfg80211_registered_device *rdev;
- struct wireless_dev *wdev;
- bool is_all_idle = true;
-
- mutex_lock(&cfg80211_mutex);
-
- /*
- * All devices must be idle as otherwise if you are actively
- * scanning some new beacon hints could be learned and would
- * count as new regulatory hints.
- */
- list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
- cfg80211_lock_rdev(rdev);
- list_for_each_entry(wdev, &rdev->netdev_list, list) {
- wdev_lock(wdev);
- if (wdev->sme_state != CFG80211_SME_IDLE)
- is_all_idle = false;
- wdev_unlock(wdev);
- }
- cfg80211_unlock_rdev(rdev);
- }
-
- mutex_unlock(&cfg80211_mutex);
-
- return is_all_idle;
-}
-
-static void disconnect_work(struct work_struct *work)
-{
- if (!cfg80211_is_all_idle())
- return;
-
- regulatory_hint_disconnect();
-}
-
-static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
-
-static int cfg80211_conn_scan(struct wireless_dev *wdev)
-{
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_scan_request *request;
- int n_channels, err;
-
- ASSERT_RTNL();
- ASSERT_RDEV_LOCK(rdev);
- ASSERT_WDEV_LOCK(wdev);
-
- if (rdev->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;
-
- if (wdev->conn->params.channel)
- request->channels[0] = wdev->conn->params.channel;
- else {
- int i = 0, j;
- enum ieee80211_band band;
- struct ieee80211_supported_band *bands;
- struct ieee80211_channel *channel;
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- bands = wdev->wiphy->bands[band];
- if (!bands)
- continue;
- for (j = 0; j < bands->n_channels; j++) {
- channel = &bands->channels[j];
- if (channel->flags & IEEE80211_CHAN_DISABLED)
- continue;
- request->channels[i++] = channel;
- }
- request->rates[band] = (1 << bands->n_bitrates) - 1;
- }
- n_channels = i;
- }
- 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->dev = wdev->netdev;
- request->wiphy = &rdev->wiphy;
-
- rdev->scan_req = request;
-
- err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request);
- if (!err) {
- wdev->conn->state = CFG80211_CONN_SCANNING;
- nl80211_send_scan_start(rdev, wdev->netdev);
- dev_hold(wdev->netdev);
- } else {
- rdev->scan_req = NULL;
- kfree(request);
- }
- return err;
-}
-
-static int cfg80211_conn_do_work(struct wireless_dev *wdev)
-{
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_connect_params *params;
- const u8 *prev_bssid = NULL;
- int err;
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (!wdev->conn)
- return 0;
-
- params = &wdev->conn->params;
-
- switch (wdev->conn->state) {
- case CFG80211_CONN_SCAN_AGAIN:
- return cfg80211_conn_scan(wdev);
- case CFG80211_CONN_AUTHENTICATE_NEXT:
- BUG_ON(!rdev->ops->auth);
- wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
- return __cfg80211_mlme_auth(rdev, wdev->netdev,
- params->channel, params->auth_type,
- params->bssid,
- params->ssid, params->ssid_len,
- NULL, 0,
- params->key, params->key_len,
- params->key_idx, false);
- case CFG80211_CONN_ASSOCIATE_NEXT:
- BUG_ON(!rdev->ops->assoc);
- wdev->conn->state = CFG80211_CONN_ASSOCIATING;
- if (wdev->conn->prev_bssid_valid)
- prev_bssid = wdev->conn->prev_bssid;
- err = __cfg80211_mlme_assoc(rdev, wdev->netdev,
- params->channel, params->bssid,
- prev_bssid,
- params->ssid, params->ssid_len,
- params->ie, params->ie_len,
- false, &params->crypto);
- if (err)
- __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
- NULL, 0,
- WLAN_REASON_DEAUTH_LEAVING,
- false);
- return err;
- case CFG80211_CONN_DEAUTH_ASSOC_FAIL:
- __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
- NULL, 0,
- WLAN_REASON_DEAUTH_LEAVING, false);
- /* return an error so that we call __cfg80211_connect_result() */
- return -EINVAL;
- default:
- return 0;
- }
-}
-
-void cfg80211_conn_work(struct work_struct *work)
-{
- struct cfg80211_registered_device *rdev =
- container_of(work, struct cfg80211_registered_device, conn_work);
- struct wireless_dev *wdev;
- u8 bssid_buf[ETH_ALEN], *bssid = NULL;
-
- rtnl_lock();
- cfg80211_lock_rdev(rdev);
- mutex_lock(&rdev->devlist_mtx);
-
- list_for_each_entry(wdev, &rdev->netdev_list, list) {
- wdev_lock(wdev);
- if (!netif_running(wdev->netdev)) {
- wdev_unlock(wdev);
- continue;
- }
- if (wdev->sme_state != CFG80211_SME_CONNECTING) {
- wdev_unlock(wdev);
- continue;
- }
- if (wdev->conn->params.bssid) {
- memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
- bssid = bssid_buf;
- }
- if (cfg80211_conn_do_work(wdev))
- __cfg80211_connect_result(
- wdev->netdev, bssid,
- NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE,
- false, NULL);
- wdev_unlock(wdev);
- }
-
- mutex_unlock(&rdev->devlist_mtx);
- cfg80211_unlock_rdev(rdev);
- rtnl_unlock();
-}
-
-static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
-{
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_bss *bss;
- u16 capa = WLAN_CAPABILITY_ESS;
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (wdev->conn->params.privacy)
- capa |= WLAN_CAPABILITY_PRIVACY;
-
- bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
- wdev->conn->params.bssid,
- wdev->conn->params.ssid,
- wdev->conn->params.ssid_len,
- WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY,
- capa);
- if (!bss)
- return NULL;
-
- 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(&rdev->conn_work);
-
- return bss;
-}
-
-static void __cfg80211_sme_scan_done(struct net_device *dev)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_bss *bss;
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (wdev->sme_state != CFG80211_SME_CONNECTING)
- return;
-
- if (!wdev->conn)
- return;
-
- if (wdev->conn->state != CFG80211_CONN_SCANNING &&
- wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
- return;
-
- bss = cfg80211_get_conn_bss(wdev);
- if (bss) {
- cfg80211_put_bss(bss);
- } else {
- /* not found */
- if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)
- schedule_work(&rdev->conn_work);
- else
- __cfg80211_connect_result(
- wdev->netdev,
- wdev->conn->params.bssid,
- NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE,
- false, NULL);
- }
-}
-
-void cfg80211_sme_scan_done(struct net_device *dev)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
-
- mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
- wdev_lock(wdev);
- __cfg80211_sme_scan_done(dev);
- wdev_unlock(wdev);
- mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
-}
-
-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);
-
- ASSERT_WDEV_LOCK(wdev);
-
- /* 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:
- if (wdev->connect_keys)
- wdev->conn->params.auth_type =
- NL80211_AUTHTYPE_SHARED_KEY;
- else
- wdev->conn->params.auth_type =
- NL80211_AUTHTYPE_NETWORK_EAP;
- 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) {
- __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
- status_code, false, NULL);
- } 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);
- }
-}
-
-bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev)
-{
- struct wiphy *wiphy = wdev->wiphy;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
- if (WARN_ON(!wdev->conn))
- return false;
-
- if (!wdev->conn->prev_bssid_valid)
- return false;
-
- /*
- * Some stupid APs don't accept reassoc, so we
- * need to fall back to trying regular assoc.
- */
- wdev->conn->prev_bssid_valid = false;
- wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
- schedule_work(&rdev->conn_work);
-
- return true;
-}
-
-void cfg80211_sme_failed_assoc(struct wireless_dev *wdev)
-{
- struct wiphy *wiphy = wdev->wiphy;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
- wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL;
- 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,
- const u8 *resp_ie, size_t resp_ie_len,
- u16 status, bool wextev,
- struct cfg80211_bss *bss)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- u8 *country_ie;
-#ifdef CONFIG_CFG80211_WEXT
- union iwreq_data wrqu;
-#endif
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
- wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
- return;
-
- if (wdev->sme_state != CFG80211_SME_CONNECTING)
- return;
-
- nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev,
- bssid, req_ie, req_ie_len,
- resp_ie, resp_ie_len,
- status, GFP_KERNEL);
-
-#ifdef CONFIG_CFG80211_WEXT
- if (wextev) {
- if (req_ie && status == WLAN_STATUS_SUCCESS) {
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = req_ie_len;
- wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie);
- }
-
- if (resp_ie && status == WLAN_STATUS_SUCCESS) {
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = resp_ie_len;
- wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie);
- }
-
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- if (bssid && status == WLAN_STATUS_SUCCESS) {
- memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
- memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN);
- wdev->wext.prev_bssid_valid = true;
- }
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
- }
-#endif
-
- if (wdev->current_bss) {
- cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(&wdev->current_bss->pub);
- wdev->current_bss = NULL;
- }
-
- if (wdev->conn)
- wdev->conn->state = CFG80211_CONN_IDLE;
-
- if (status != WLAN_STATUS_SUCCESS) {
- wdev->sme_state = CFG80211_SME_IDLE;
- if (wdev->conn)
- kfree(wdev->conn->ie);
- kfree(wdev->conn);
- wdev->conn = NULL;
- kfree(wdev->connect_keys);
- wdev->connect_keys = NULL;
- wdev->ssid_len = 0;
- return;
- }
-
- if (!bss)
- bss = cfg80211_get_bss(wdev->wiphy,
- wdev->conn ? wdev->conn->params.channel :
- NULL,
- bssid,
- wdev->ssid, wdev->ssid_len,
- WLAN_CAPABILITY_ESS,
- WLAN_CAPABILITY_ESS);
-
- if (WARN_ON(!bss))
- return;
-
- cfg80211_hold_bss(bss_from_pub(bss));
- wdev->current_bss = bss_from_pub(bss);
-
- wdev->sme_state = CFG80211_SME_CONNECTED;
- cfg80211_upload_connect_keys(wdev);
-
- country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
-
- if (!country_ie)
- return;
-
- /*
- * ieee80211_bss_get_ie() ensures we can access:
- * - country_ie + 2, the start of the country ie data, and
- * - and country_ie[1] which is the IE length
- */
- regulatory_hint_11d(wdev->wiphy,
- bss->channel->band,
- country_ie + 2,
- country_ie[1]);
-}
-
-void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
- const u8 *req_ie, size_t req_ie_len,
- const u8 *resp_ie, size_t resp_ie_len,
- u16 status, gfp_t gfp)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_event *ev;
- unsigned long flags;
-
- CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING);
-
- ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
- if (!ev)
- return;
-
- ev->type = EVENT_CONNECT_RESULT;
- if (bssid)
- memcpy(ev->cr.bssid, bssid, ETH_ALEN);
- if (req_ie_len) {
- ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev);
- ev->cr.req_ie_len = req_ie_len;
- memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len);
- }
- if (resp_ie_len) {
- ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
- ev->cr.resp_ie_len = resp_ie_len;
- memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len);
- }
- ev->cr.status = status;
-
- spin_lock_irqsave(&wdev->event_lock, flags);
- list_add_tail(&ev->list, &wdev->event_list);
- spin_unlock_irqrestore(&wdev->event_lock, flags);
- queue_work(cfg80211_wq, &rdev->event_work);
-}
-EXPORT_SYMBOL(cfg80211_connect_result);
-
-void __cfg80211_roamed(struct wireless_dev *wdev,
- struct cfg80211_bss *bss,
- const u8 *req_ie, size_t req_ie_len,
- const u8 *resp_ie, size_t resp_ie_len)
-{
-#ifdef CONFIG_CFG80211_WEXT
- union iwreq_data wrqu;
-#endif
- ASSERT_WDEV_LOCK(wdev);
-
- if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
- wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
- goto out;
-
- if (wdev->sme_state != CFG80211_SME_CONNECTED)
- goto out;
-
- /* internal error -- how did we get to CONNECTED w/o BSS? */
- if (WARN_ON(!wdev->current_bss)) {
- goto out;
- }
-
- cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(&wdev->current_bss->pub);
- wdev->current_bss = NULL;
-
- cfg80211_hold_bss(bss_from_pub(bss));
- wdev->current_bss = bss_from_pub(bss);
-
- nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bss->bssid,
- req_ie, req_ie_len, resp_ie, resp_ie_len,
- GFP_KERNEL);
-
-#ifdef CONFIG_CFG80211_WEXT
- if (req_ie) {
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = req_ie_len;
- wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
- &wrqu, req_ie);
- }
-
- if (resp_ie) {
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = resp_ie_len;
- wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
- &wrqu, resp_ie);
- }
-
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN);
- memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN);
- wdev->wext.prev_bssid_valid = true;
- wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
-#endif
-
- return;
-out:
- cfg80211_put_bss(bss);
-}
-
-void cfg80211_roamed(struct net_device *dev,
- struct ieee80211_channel *channel,
- const u8 *bssid,
- const u8 *req_ie, size_t req_ie_len,
- const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_bss *bss;
-
- CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
-
- bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid,
- wdev->ssid_len, WLAN_CAPABILITY_ESS,
- WLAN_CAPABILITY_ESS);
- if (WARN_ON(!bss))
- return;
-
- cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie,
- resp_ie_len, gfp);
-}
-EXPORT_SYMBOL(cfg80211_roamed);
-
-void cfg80211_roamed_bss(struct net_device *dev,
- struct cfg80211_bss *bss, const u8 *req_ie,
- size_t req_ie_len, const u8 *resp_ie,
- size_t resp_ie_len, gfp_t gfp)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_event *ev;
- unsigned long flags;
-
- CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
-
- if (WARN_ON(!bss))
- return;
-
- ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
- if (!ev) {
- cfg80211_put_bss(bss);
- return;
- }
-
- ev->type = EVENT_ROAMED;
- ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
- ev->rm.req_ie_len = req_ie_len;
- memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len);
- ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
- ev->rm.resp_ie_len = resp_ie_len;
- memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len);
- ev->rm.bss = bss;
-
- spin_lock_irqsave(&wdev->event_lock, flags);
- list_add_tail(&ev->list, &wdev->event_list);
- spin_unlock_irqrestore(&wdev->event_lock, flags);
- queue_work(cfg80211_wq, &rdev->event_work);
-}
-EXPORT_SYMBOL(cfg80211_roamed_bss);
-
-void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
- size_t ie_len, u16 reason, bool from_ap)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- int i;
-#ifdef CONFIG_CFG80211_WEXT
- union iwreq_data wrqu;
-#endif
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
- wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
- return;
-
- if (wdev->sme_state != CFG80211_SME_CONNECTED)
- return;
-
- if (wdev->current_bss) {
- cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(&wdev->current_bss->pub);
- }
-
- wdev->current_bss = NULL;
- wdev->sme_state = CFG80211_SME_IDLE;
- wdev->ssid_len = 0;
-
- if (wdev->conn) {
- const u8 *bssid;
- int ret;
-
- kfree(wdev->conn->ie);
- wdev->conn->ie = NULL;
- kfree(wdev->conn);
- wdev->conn = NULL;
-
- /*
- * If this disconnect was due to a disassoc, we
- * we might still have an auth BSS around. For
- * the userspace SME that's currently expected,
- * but for the kernel SME (nl80211 CONNECT or
- * wireless extensions) we want to clear up all
- * state.
- */
- for (i = 0; i < MAX_AUTH_BSSES; i++) {
- if (!wdev->auth_bsses[i])
- continue;
- bssid = wdev->auth_bsses[i]->pub.bssid;
- ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
- WLAN_REASON_DEAUTH_LEAVING,
- false);
- WARN(ret, "deauth failed: %d\n", ret);
- }
- }
-
- nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
-
- /*
- * Delete all the keys ... pairwise keys can't really
- * exist any more anyway, but default keys might.
- */
- if (rdev->ops->del_key)
- for (i = 0; i < 6; i++)
- rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL);
-
-#ifdef CONFIG_CFG80211_WEXT
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
- wdev->wext.connect.ssid_len = 0;
-#endif
-
- schedule_work(&cfg80211_disconnect_work);
-}
-
-void cfg80211_disconnected(struct net_device *dev, u16 reason,
- u8 *ie, size_t ie_len, gfp_t gfp)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct cfg80211_event *ev;
- unsigned long flags;
-
- CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
-
- ev = kzalloc(sizeof(*ev) + ie_len, gfp);
- if (!ev)
- return;
-
- ev->type = EVENT_DISCONNECTED;
- ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
- ev->dc.ie_len = ie_len;
- memcpy((void *)ev->dc.ie, ie, ie_len);
- ev->dc.reason = reason;
-
- spin_lock_irqsave(&wdev->event_lock, flags);
- list_add_tail(&ev->list, &wdev->event_list);
- spin_unlock_irqrestore(&wdev->event_lock, flags);
- queue_work(cfg80211_wq, &rdev->event_work);
-}
-EXPORT_SYMBOL(cfg80211_disconnected);
-
-int __cfg80211_connect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct cfg80211_connect_params *connect,
- struct cfg80211_cached_keys *connkeys,
- const u8 *prev_bssid)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_bss *bss = NULL;
- int err;
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (wdev->sme_state != CFG80211_SME_IDLE)
- return -EALREADY;
-
- if (WARN_ON(wdev->connect_keys)) {
- kfree(wdev->connect_keys);
- wdev->connect_keys = NULL;
- }
-
- if (connkeys && connkeys->def >= 0) {
- int idx;
- u32 cipher;
-
- idx = connkeys->def;
- cipher = connkeys->params[idx].cipher;
- /* If given a WEP key we may need it for shared key auth */
- if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
- cipher == WLAN_CIPHER_SUITE_WEP104) {
- connect->key_idx = idx;
- connect->key = connkeys->params[idx].key;
- connect->key_len = connkeys->params[idx].key_len;
-
- /*
- * If ciphers are not set (e.g. when going through
- * iwconfig), we have to set them appropriately here.
- */
- if (connect->crypto.cipher_group == 0)
- connect->crypto.cipher_group = cipher;
-
- if (connect->crypto.n_ciphers_pairwise == 0) {
- connect->crypto.n_ciphers_pairwise = 1;
- connect->crypto.ciphers_pairwise[0] = cipher;
- }
- }
- }
-
- if (!rdev->ops->connect) {
- if (!rdev->ops->auth || !rdev->ops->assoc)
- return -EOPNOTSUPP;
-
- if (WARN_ON(wdev->conn))
- return -EINPROGRESS;
-
- wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
- if (!wdev->conn)
- return -ENOMEM;
-
- /*
- * 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) {
- kfree(wdev->conn);
- wdev->conn = NULL;
- 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;
-
- /* see if we have the bss already */
- bss = cfg80211_get_conn_bss(wdev);
-
- wdev->sme_state = CFG80211_SME_CONNECTING;
- wdev->connect_keys = connkeys;
-
- if (prev_bssid) {
- memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
- wdev->conn->prev_bssid_valid = true;
- }
-
- /* we're good if we have a matching bss struct */
- if (bss) {
- wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
- err = cfg80211_conn_do_work(wdev);
- cfg80211_put_bss(bss);
- } 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) {
- kfree(wdev->conn->ie);
- kfree(wdev->conn);
- wdev->conn = NULL;
- wdev->sme_state = CFG80211_SME_IDLE;
- wdev->connect_keys = NULL;
- wdev->ssid_len = 0;
- }
-
- return err;
- } else {
- wdev->sme_state = CFG80211_SME_CONNECTING;
- wdev->connect_keys = connkeys;
- err = rdev->ops->connect(&rdev->wiphy, dev, connect);
- if (err) {
- wdev->connect_keys = NULL;
- wdev->sme_state = CFG80211_SME_IDLE;
- return err;
- }
-
- memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
- wdev->ssid_len = connect->ssid_len;
-
- return 0;
- }
-}
-
-int cfg80211_connect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct cfg80211_connect_params *connect,
- struct cfg80211_cached_keys *connkeys)
-{
- int err;
-
- mutex_lock(&rdev->devlist_mtx);
- wdev_lock(dev->ieee80211_ptr);
- err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL);
- wdev_unlock(dev->ieee80211_ptr);
- mutex_unlock(&rdev->devlist_mtx);
-
- return err;
-}
-
-int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
- struct net_device *dev, u16 reason, bool wextev)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- int err;
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (wdev->sme_state == CFG80211_SME_IDLE)
- return -EINVAL;
-
- kfree(wdev->connect_keys);
- wdev->connect_keys = NULL;
-
- if (!rdev->ops->disconnect) {
- if (!rdev->ops->deauth)
- return -EOPNOTSUPP;
-
- /* was it connected by userspace SME? */
- if (!wdev->conn) {
- cfg80211_mlme_down(rdev, dev);
- return 0;
- }
-
- 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;
- kfree(wdev->conn->ie);
- kfree(wdev->conn);
- wdev->conn = NULL;
- wdev->ssid_len = 0;
- return 0;
- }
-
- /* wdev->conn->params.bssid must be set if > SCANNING */
- err = __cfg80211_mlme_deauth(rdev, dev,
- wdev->conn->params.bssid,
- NULL, 0, reason, false);
- if (err)
- return err;
- } else {
- err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
- if (err)
- return err;
- }
-
- if (wdev->sme_state == CFG80211_SME_CONNECTED)
- __cfg80211_disconnected(dev, 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,
- wextev, NULL);
-
- return 0;
-}
-
-int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- u16 reason, bool wextev)
-{
- int err;
-
- wdev_lock(dev->ieee80211_ptr);
- err = __cfg80211_disconnect(rdev, dev, reason, wextev);
- wdev_unlock(dev->ieee80211_ptr);
-
- return err;
-}
-
-void cfg80211_sme_disassoc(struct net_device *dev, int idx)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- u8 bssid[ETH_ALEN];
-
- ASSERT_WDEV_LOCK(wdev);
-
- if (!wdev->conn)
- return;
-
- if (wdev->conn->state == CFG80211_CONN_IDLE)
- return;
-
- /*
- * Ok, so the association was made by this SME -- we don't
- * want it any more so deauthenticate too.
- */
-
- if (!wdev->auth_bsses[idx])
- return;
-
- memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN);
- if (__cfg80211_mlme_deauth(rdev, dev, bssid,
- NULL, 0, WLAN_REASON_DEAUTH_LEAVING,
- false)) {
- /* whatever -- assume gone anyway */
- cfg80211_unhold_bss(wdev->auth_bsses[idx]);
- cfg80211_put_bss(&wdev->auth_bsses[idx]->pub);
- wdev->auth_bsses[idx] = NULL;
- }
-}