diff options
Diffstat (limited to 'net/mac80211')
-rw-r--r-- | net/mac80211/Kconfig | 16 | ||||
-rw-r--r-- | net/mac80211/cfg.c | 216 | ||||
-rw-r--r-- | net/mac80211/debugfs_netdev.c | 46 | ||||
-rw-r--r-- | net/mac80211/debugfs_sta.c | 98 | ||||
-rw-r--r-- | net/mac80211/event.c | 23 | ||||
-rw-r--r-- | net/mac80211/ibss.c | 6 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 148 | ||||
-rw-r--r-- | net/mac80211/iface.c | 30 | ||||
-rw-r--r-- | net/mac80211/key.c | 28 | ||||
-rw-r--r-- | net/mac80211/main.c | 5 | ||||
-rw-r--r-- | net/mac80211/mesh.c | 6 | ||||
-rw-r--r-- | net/mac80211/mesh.h | 3 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 1637 | ||||
-rw-r--r-- | net/mac80211/rx.c | 103 | ||||
-rw-r--r-- | net/mac80211/scan.c | 29 | ||||
-rw-r--r-- | net/mac80211/sta_info.h | 17 | ||||
-rw-r--r-- | net/mac80211/tx.c | 12 | ||||
-rw-r--r-- | net/mac80211/wep.c | 52 | ||||
-rw-r--r-- | net/mac80211/wep.h | 4 | ||||
-rw-r--r-- | net/mac80211/wext.c | 450 | ||||
-rw-r--r-- | net/mac80211/wpa.c | 3 |
21 files changed, 1056 insertions, 1876 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index ba2643a43c73..41a32cd919af 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -14,22 +14,6 @@ config MAC80211 comment "CFG80211 needs to be enabled for MAC80211" depends on CFG80211=n -config MAC80211_DEFAULT_PS - bool "enable powersave by default" - depends on MAC80211 - default y - help - This option enables powersave mode by default. - - If this causes your applications to misbehave you should fix your - applications instead -- they need to register their network - latency requirement, see Documentation/power/pm_qos_interface.txt. - -config MAC80211_DEFAULT_PS_VALUE - int - default 1 if MAC80211_DEFAULT_PS - default 0 - menu "Rate control algorithm selection" depends on MAC80211 != n diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 3f47276caeb8..36f8f245fa4c 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -74,19 +74,14 @@ static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) return 0; } -static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, +static int ieee80211_change_iface(struct wiphy *wiphy, + struct net_device *dev, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { - struct net_device *dev; struct ieee80211_sub_if_data *sdata; int ret; - /* we're under RTNL */ - dev = __dev_get_by_index(&init_net, ifindex); - if (!dev) - return -ENODEV; - if (!nl80211_type_check(type)) return -EINVAL; @@ -1177,123 +1172,29 @@ static int ieee80211_scan(struct wiphy *wiphy, static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_auth_request *req) { - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - switch (req->auth_type) { - case NL80211_AUTHTYPE_OPEN_SYSTEM: - sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_OPEN; - break; - case NL80211_AUTHTYPE_SHARED_KEY: - sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_SHARED_KEY; - break; - case NL80211_AUTHTYPE_FT: - sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_FT; - break; - case NL80211_AUTHTYPE_NETWORK_EAP: - sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_LEAP; - break; - default: - return -EOPNOTSUPP; - } - - memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN); - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; - sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET; - - /* TODO: req->chan */ - sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL; - - if (req->ssid) { - sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET; - memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len); - sdata->u.mgd.ssid_len = req->ssid_len; - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; - } - - kfree(sdata->u.mgd.sme_auth_ie); - sdata->u.mgd.sme_auth_ie = NULL; - sdata->u.mgd.sme_auth_ie_len = 0; - if (req->ie) { - sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL); - if (sdata->u.mgd.sme_auth_ie == NULL) - return -ENOMEM; - memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len); - sdata->u.mgd.sme_auth_ie_len = req->ie_len; - } - - sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME; - sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE; - ieee80211_sta_req_auth(sdata); - return 0; + return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); } static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_assoc_request *req) { - struct ieee80211_sub_if_data *sdata; - int ret; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 || - !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED)) - return -ENOLINK; /* not authenticated */ - - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; - sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET; - - /* TODO: req->chan */ - sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL; - - if (req->ssid) { - sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET; - memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len); - sdata->u.mgd.ssid_len = req->ssid_len; - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; - } else - sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL; - - ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len); - if (ret && ret != -EALREADY) - return ret; - - if (req->use_mfp) { - sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED; - sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED; - } else { - sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED; - sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED; - } - - if (req->control_port) - sdata->u.mgd.flags |= IEEE80211_STA_CONTROL_PORT; - else - sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT; - - sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME; - sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE; - ieee80211_sta_req_auth(sdata); - return 0; + return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); } static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_deauth_request *req) + struct cfg80211_deauth_request *req, + void *cookie) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - /* TODO: req->ie, req->peer_addr */ - return ieee80211_sta_deauthenticate(sdata, req->reason_code); + return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), + req, cookie); } static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_disassoc_request *req) + struct cfg80211_disassoc_request *req, + void *cookie) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - /* TODO: req->ie, req->peer_addr */ - return ieee80211_sta_disassociate(sdata, req->reason_code); + return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), + req, cookie); } static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, @@ -1374,6 +1275,16 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm) return 0; } +static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, + u8 *addr) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); + + return 0; +} + static void ieee80211_rfkill_poll(struct wiphy *wiphy) { struct ieee80211_local *local = wiphy_priv(wiphy); @@ -1381,6 +1292,85 @@ static void ieee80211_rfkill_poll(struct wiphy *wiphy) drv_rfkill_poll(local); } +#ifdef CONFIG_NL80211_TESTMODE +int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + + if (!local->ops->testmode_cmd) + return -EOPNOTSUPP; + + return local->ops->testmode_cmd(&local->hw, data, len); +} +#endif + +static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, + bool enabled, int timeout) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_conf *conf = &local->hw.conf; + + if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) + return -EOPNOTSUPP; + + if (enabled == sdata->u.mgd.powersave && + timeout == conf->dynamic_ps_timeout) + return 0; + + sdata->u.mgd.powersave = enabled; + conf->dynamic_ps_timeout = timeout; + + if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + + ieee80211_recalc_ps(local, -1); + + return 0; +} + +static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, + struct net_device *dev, + const u8 *addr, + const struct cfg80211_bitrate_mask *mask) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + int i, err = -EINVAL; + u32 target_rate; + struct ieee80211_supported_band *sband; + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + + /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates + * target_rate = X, rate->fixed = 1 means only rate X + * target_rate = X, rate->fixed = 0 means all rates <= X */ + sdata->max_ratectrl_rateidx = -1; + sdata->force_unicast_rateidx = -1; + + if (mask->fixed) + target_rate = mask->fixed / 100; + else if (mask->maxrate) + target_rate = mask->maxrate / 100; + else + return 0; + + for (i=0; i< sband->n_bitrates; i++) { + struct ieee80211_rate *brate = &sband->bitrates[i]; + int this_rate = brate->bitrate; + + if (target_rate == this_rate) { + sdata->max_ratectrl_rateidx = i; + if (mask->fixed) + sdata->force_unicast_rateidx = i; + err = 0; + break; + } + } + + return err; +} + struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, @@ -1422,5 +1412,9 @@ struct cfg80211_ops mac80211_config_ops = { .set_wiphy_params = ieee80211_set_wiphy_params, .set_tx_power = ieee80211_set_tx_power, .get_tx_power = ieee80211_get_tx_power, + .set_wds_peer = ieee80211_set_wds_peer, .rfkill_poll = ieee80211_rfkill_poll, + CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) + .set_power_mgmt = ieee80211_set_power_mgmt, + .set_bitrate_mask = ieee80211_set_bitrate_mask, }; diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index e3420329f4e6..e9ec6cae2d39 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -95,33 +95,9 @@ IEEE80211_IF_FILE(force_unicast_rateidx, force_unicast_rateidx, DEC); IEEE80211_IF_FILE(max_ratectrl_rateidx, max_ratectrl_rateidx, DEC); /* STA attributes */ -IEEE80211_IF_FILE(state, u.mgd.state, DEC); IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC); -IEEE80211_IF_FILE(prev_bssid, u.mgd.prev_bssid, MAC); -IEEE80211_IF_FILE(ssid_len, u.mgd.ssid_len, SIZE); IEEE80211_IF_FILE(aid, u.mgd.aid, DEC); -IEEE80211_IF_FILE(ap_capab, u.mgd.ap_capab, HEX); IEEE80211_IF_FILE(capab, u.mgd.capab, HEX); -IEEE80211_IF_FILE(extra_ie_len, u.mgd.extra_ie_len, SIZE); -IEEE80211_IF_FILE(auth_tries, u.mgd.auth_tries, DEC); -IEEE80211_IF_FILE(assoc_tries, u.mgd.assoc_tries, DEC); -IEEE80211_IF_FILE(auth_algs, u.mgd.auth_algs, HEX); -IEEE80211_IF_FILE(auth_alg, u.mgd.auth_alg, DEC); -IEEE80211_IF_FILE(auth_transaction, u.mgd.auth_transaction, DEC); - -static ssize_t ieee80211_if_fmt_flags( - const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) -{ - return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n", - sdata->u.mgd.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "", - sdata->u.mgd.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "", - sdata->u.mgd.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "", - sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "", - sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "", - sdata->u.mgd.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "", - sdata->vif.bss_conf.use_cts_prot ? "CTS prot\n" : ""); -} -__IEEE80211_IF_FILE(flags); /* AP attributes */ IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC); @@ -184,20 +160,9 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_ADD(force_unicast_rateidx, sta); DEBUGFS_ADD(max_ratectrl_rateidx, sta); - DEBUGFS_ADD(state, sta); DEBUGFS_ADD(bssid, sta); - DEBUGFS_ADD(prev_bssid, sta); - DEBUGFS_ADD(ssid_len, sta); DEBUGFS_ADD(aid, sta); - DEBUGFS_ADD(ap_capab, sta); DEBUGFS_ADD(capab, sta); - DEBUGFS_ADD(extra_ie_len, sta); - DEBUGFS_ADD(auth_tries, sta); - DEBUGFS_ADD(assoc_tries, sta); - DEBUGFS_ADD(auth_algs, sta); - DEBUGFS_ADD(auth_alg, sta); - DEBUGFS_ADD(auth_transaction, sta); - DEBUGFS_ADD(flags, sta); } static void add_ap_files(struct ieee80211_sub_if_data *sdata) @@ -317,20 +282,9 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_DEL(force_unicast_rateidx, sta); DEBUGFS_DEL(max_ratectrl_rateidx, sta); - DEBUGFS_DEL(state, sta); DEBUGFS_DEL(bssid, sta); - DEBUGFS_DEL(prev_bssid, sta); - DEBUGFS_DEL(ssid_len, sta); DEBUGFS_DEL(aid, sta); - DEBUGFS_DEL(ap_capab, sta); DEBUGFS_DEL(capab, sta); - DEBUGFS_DEL(extra_ie_len, sta); - DEBUGFS_DEL(auth_tries, sta); - DEBUGFS_DEL(assoc_tries, sta); - DEBUGFS_DEL(auth_algs, sta); - DEBUGFS_DEL(auth_alg, sta); - DEBUGFS_DEL(auth_transaction, sta); - DEBUGFS_DEL(flags, sta); } static void del_ap_files(struct ieee80211_sub_if_data *sdata) diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 90230c718b5b..33a2e892115b 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -120,45 +120,38 @@ STA_OPS(last_seq_ctrl); static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[768], *p = buf; + char buf[30 + STA_TID_NUM * 70], *p = buf; int i; struct sta_info *sta = file->private_data; - p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n"); - p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n " - "TIDs info is: \n TID :", - (sta->ampdu_mlme.dialog_token_allocator + 1)); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_state_rx[i]); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_state_rx[i] ? - sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_state_tx[i]); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_state_tx[i] ? - sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_state_tx[i] ? - sta->ampdu_mlme.tid_tx[i]->ssn : 0); - p += scnprintf(p, sizeof(buf)+buf-p, "\n"); + spin_lock_bh(&sta->lock); + p += scnprintf(p, sizeof(buf)+buf-p, "next dialog_token is %#02x\n", + sta->ampdu_mlme.dialog_token_allocator + 1); + for (i = 0; i < STA_TID_NUM; i++) { + p += scnprintf(p, sizeof(buf)+buf-p, "TID %02d:", i); + p += scnprintf(p, sizeof(buf)+buf-p, " RX=%x", + sta->ampdu_mlme.tid_state_rx[i]); + p += scnprintf(p, sizeof(buf)+buf-p, "/DTKN=%#.2x", + sta->ampdu_mlme.tid_state_rx[i] ? + sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); + p += scnprintf(p, sizeof(buf)+buf-p, "/SSN=%#.3x", + sta->ampdu_mlme.tid_state_rx[i] ? + sta->ampdu_mlme.tid_rx[i]->ssn : 0); + + p += scnprintf(p, sizeof(buf)+buf-p, " TX=%x", + sta->ampdu_mlme.tid_state_tx[i]); + p += scnprintf(p, sizeof(buf)+buf-p, "/DTKN=%#.2x", + sta->ampdu_mlme.tid_state_tx[i] ? + sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); + p += scnprintf(p, sizeof(buf)+buf-p, "/SSN=%#.3x", + sta->ampdu_mlme.tid_state_tx[i] ? + sta->ampdu_mlme.tid_tx[i]->ssn : 0); + p += scnprintf(p, sizeof(buf)+buf-p, "/pending=%03d", + sta->ampdu_mlme.tid_state_tx[i] ? + skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0); + p += scnprintf(p, sizeof(buf)+buf-p, "\n"); + } + spin_unlock_bh(&sta->lock); return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } @@ -203,6 +196,22 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD(inactive_ms); DEBUGFS_ADD(last_seq_ctrl); DEBUGFS_ADD(agg_status); + DEBUGFS_ADD(dev); + DEBUGFS_ADD(rx_packets); + DEBUGFS_ADD(tx_packets); + DEBUGFS_ADD(rx_bytes); + DEBUGFS_ADD(tx_bytes); + DEBUGFS_ADD(rx_duplicates); + DEBUGFS_ADD(rx_fragments); + DEBUGFS_ADD(rx_dropped); + DEBUGFS_ADD(tx_fragments); + DEBUGFS_ADD(tx_filtered); + DEBUGFS_ADD(tx_retry_failed); + DEBUGFS_ADD(tx_retry_count); + DEBUGFS_ADD(last_signal); + DEBUGFS_ADD(last_qual); + DEBUGFS_ADD(last_noise); + DEBUGFS_ADD(wep_weak_iv_count); } void ieee80211_sta_debugfs_remove(struct sta_info *sta) @@ -212,6 +221,23 @@ void ieee80211_sta_debugfs_remove(struct sta_info *sta) DEBUGFS_DEL(inactive_ms); DEBUGFS_DEL(last_seq_ctrl); DEBUGFS_DEL(agg_status); + DEBUGFS_DEL(aid); + DEBUGFS_DEL(dev); + DEBUGFS_DEL(rx_packets); + DEBUGFS_DEL(tx_packets); + DEBUGFS_DEL(rx_bytes); + DEBUGFS_DEL(tx_bytes); + DEBUGFS_DEL(rx_duplicates); + DEBUGFS_DEL(rx_fragments); + DEBUGFS_DEL(rx_dropped); + DEBUGFS_DEL(tx_fragments); + DEBUGFS_DEL(tx_filtered); + DEBUGFS_DEL(tx_retry_failed); + DEBUGFS_DEL(tx_retry_count); + DEBUGFS_DEL(last_signal); + DEBUGFS_DEL(last_qual); + DEBUGFS_DEL(last_noise); + DEBUGFS_DEL(wep_weak_iv_count); debugfs_remove(sta->debugfs.dir); sta->debugfs.dir = NULL; diff --git a/net/mac80211/event.c b/net/mac80211/event.c index f288d01a6344..01ae759518f6 100644 --- a/net/mac80211/event.c +++ b/net/mac80211/event.c @@ -7,8 +7,7 @@ * * mac80211 - events */ - -#include <net/iw_handler.h> +#include <net/cfg80211.h> #include "ieee80211_i.h" /* @@ -17,26 +16,12 @@ * driver or is still in the frame), it should provide that information. */ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, - struct ieee80211_hdr *hdr, const u8 *tsc) + struct ieee80211_hdr *hdr, const u8 *tsc, + gfp_t gfp) { - union iwreq_data wrqu; - char *buf = kmalloc(128, GFP_ATOMIC); - - if (buf) { - /* TODO: needed parameters: count, key type, TSC */ - sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" - "keyid=%d %scast addr=%pM)", - keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni", - hdr->addr2); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = strlen(buf); - wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf); - kfree(buf); - } - cfg80211_michael_mic_failure(sdata->dev, hdr->addr2, (hdr->addr1[0] & 0x01) ? NL80211_KEYTYPE_GROUP : NL80211_KEYTYPE_PAIRWISE, - keyidx, tsc); + keyidx, tsc, gfp); } diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 0b30277eb366..15d5a53b59a8 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -705,7 +705,7 @@ static void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt; u16 fc; - rx_status = (struct ieee80211_rx_status *) skb->cb; + rx_status = IEEE80211_SKB_RXCB(skb); mgmt = (struct ieee80211_mgmt *) skb->data; fc = le16_to_cpu(mgmt->frame_control); @@ -836,8 +836,7 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local) } ieee80211_rx_result -ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) +ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; struct ieee80211_mgmt *mgmt; @@ -852,7 +851,6 @@ ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_PROBE_RESP: case IEEE80211_STYPE_BEACON: - memcpy(skb->cb, rx_status, sizeof(*rx_status)); case IEEE80211_STYPE_PROBE_REQ: case IEEE80211_STYPE_AUTH: skb_queue_tail(&sdata->u.ibss.skb_queue, skb); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 68eb5052179a..327aabc07abe 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -227,35 +227,44 @@ struct mesh_preq_queue { u8 flags; }; +enum ieee80211_mgd_state { + IEEE80211_MGD_STATE_IDLE, + IEEE80211_MGD_STATE_PROBE, + IEEE80211_MGD_STATE_AUTH, + IEEE80211_MGD_STATE_ASSOC, +}; + +struct ieee80211_mgd_work { + struct list_head list; + struct ieee80211_bss *bss; + int ie_len; + u8 prev_bssid[ETH_ALEN]; + u8 ssid[IEEE80211_MAX_SSID_LEN]; + u8 ssid_len; + unsigned long timeout; + enum ieee80211_mgd_state state; + u16 auth_alg, auth_transaction; + + int tries; + + /* must be last */ + u8 ie[0]; /* for auth or assoc frame, not probe */ +}; + /* flags used in struct ieee80211_if_managed.flags */ -#define IEEE80211_STA_SSID_SET BIT(0) -#define IEEE80211_STA_BSSID_SET BIT(1) -#define IEEE80211_STA_PREV_BSSID_SET BIT(2) -#define IEEE80211_STA_AUTHENTICATED BIT(3) -#define IEEE80211_STA_ASSOCIATED BIT(4) -#define IEEE80211_STA_PROBEREQ_POLL BIT(5) -#define IEEE80211_STA_CREATE_IBSS BIT(6) -#define IEEE80211_STA_CONTROL_PORT BIT(7) -#define IEEE80211_STA_WMM_ENABLED BIT(8) -/* hole at 9, please re-use */ -#define IEEE80211_STA_AUTO_SSID_SEL BIT(10) -#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11) -#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12) -#define IEEE80211_STA_PRIVACY_INVOKED BIT(13) -#define IEEE80211_STA_TKIP_WEP_USED BIT(14) -#define IEEE80211_STA_CSA_RECEIVED BIT(15) -#define IEEE80211_STA_MFP_ENABLED BIT(16) -#define IEEE80211_STA_EXT_SME BIT(17) -/* flags for MLME request */ -#define IEEE80211_STA_REQ_SCAN 0 -#define IEEE80211_STA_REQ_AUTH 1 -#define IEEE80211_STA_REQ_RUN 2 +enum ieee80211_sta_flags { + IEEE80211_STA_PROBEREQ_POLL = BIT(3), + IEEE80211_STA_CONTROL_PORT = BIT(4), + IEEE80211_STA_WMM_ENABLED = BIT(5), + IEEE80211_STA_DISABLE_11N = BIT(6), + IEEE80211_STA_CSA_RECEIVED = BIT(7), + IEEE80211_STA_MFP_ENABLED = BIT(8), +}; -/* bitfield of allowed auth algs */ -#define IEEE80211_AUTH_ALG_OPEN BIT(0) -#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) -#define IEEE80211_AUTH_ALG_LEAP BIT(2) -#define IEEE80211_AUTH_ALG_FT BIT(3) +/* flags for MLME request */ +enum ieee80211_sta_request { + IEEE80211_STA_REQ_SCAN, +}; struct ieee80211_if_managed { struct timer_list timer; @@ -264,49 +273,26 @@ struct ieee80211_if_managed { struct work_struct chswitch_work; struct work_struct beacon_loss_work; - u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; - - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t ssid_len; + struct mutex mtx; + struct ieee80211_bss *associated; + struct list_head work_list; - enum { - IEEE80211_STA_MLME_DISABLED, - IEEE80211_STA_MLME_DIRECT_PROBE, - IEEE80211_STA_MLME_AUTHENTICATE, - IEEE80211_STA_MLME_ASSOCIATE, - IEEE80211_STA_MLME_ASSOCIATED, - } state; + u8 bssid[ETH_ALEN]; u16 aid; - u16 ap_capab, capab; - u8 *extra_ie; /* to be added to the end of AssocReq */ - size_t extra_ie_len; - - /* The last AssocReq/Resp IEs */ - u8 *assocreq_ies, *assocresp_ies; - size_t assocreq_ies_len, assocresp_ies_len; + u16 capab; struct sk_buff_head skb_queue; - int assoc_scan_tries; /* number of scans done pre-association */ - int direct_probe_tries; /* retries for direct probes */ - int auth_tries; /* retries for auth req */ - int assoc_tries; /* retries for assoc req */ - unsigned long timers_running; /* used for quiesce/restart */ bool powersave; /* powersave requested for this iface */ unsigned long request; - unsigned long last_probe; unsigned long last_beacon; unsigned int flags; - unsigned int auth_algs; /* bitfield of allowed auth algs */ - int auth_alg; /* currently used IEEE 802.11 authentication algorithm */ - int auth_transaction; - u32 beacon_crc; enum { @@ -316,10 +302,6 @@ struct ieee80211_if_managed { } mfp; /* management frame protection */ int wmm_last_param_set; - - /* Extra IE data for management frames */ - u8 *sme_auth_ie; - size_t sme_auth_ie_len; }; enum ieee80211_ibss_request { @@ -478,20 +460,9 @@ struct ieee80211_sub_if_data { union { struct { struct dentry *drop_unencrypted; - struct dentry *state; struct dentry *bssid; - struct dentry *prev_bssid; - struct dentry *ssid_len; struct dentry *aid; - struct dentry *ap_capab; struct dentry *capab; - struct dentry *extra_ie_len; - struct dentry *auth_tries; - struct dentry *assoc_tries; - struct dentry *auth_algs; - struct dentry *auth_alg; - struct dentry *auth_transaction; - struct dentry *flags; struct dentry *force_unicast_rateidx; struct dentry *max_ratectrl_rateidx; } sta; @@ -942,16 +913,18 @@ extern const struct iw_handler_def ieee80211_iw_handler_def; /* STA code */ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); +int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, + struct cfg80211_auth_request *req); +int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, + struct cfg80211_assoc_request *req); +int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, + struct cfg80211_deauth_request *req, + void *cookie); +int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, + struct cfg80211_disassoc_request *req, + void *cookie); ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); -int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata); -int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len); -int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len); -int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid); -void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata); -int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason); -int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason); + struct sk_buff *skb); void ieee80211_send_pspoll(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata); void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); @@ -967,8 +940,7 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); ieee80211_rx_result -ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); +ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, u8 *bssid, u8 *addr, u32 supp_rates); int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, @@ -983,16 +955,9 @@ int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, const u8 *ssid, u8 ssid_len); int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, struct cfg80211_scan_request *req); -int ieee80211_scan_results(struct ieee80211_local *local, - struct iw_request_info *info, - char *buf, size_t len); void ieee80211_scan_cancel(struct ieee80211_local *local); ieee80211_rx_result -ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); -int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, - const char *ie, size_t len); +ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); struct ieee80211_bss * @@ -1008,8 +973,6 @@ ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, u8 *ssid, u8 ssid_len); void ieee80211_rx_bss_put(struct ieee80211_local *local, struct ieee80211_bss *bss); -void ieee80211_rx_bss_remove(struct ieee80211_sub_if_data *sdata, u8 *bssid, - int freq, u8 *ssid, u8 ssid_len); /* interface handling */ int ieee80211_if_add(struct ieee80211_local *local, const char *name, @@ -1092,7 +1055,8 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, int rate, int erp, int short_preamble); void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, - struct ieee80211_hdr *hdr, const u8 *tsc); + struct ieee80211_hdr *hdr, const u8 *tsc, + gfp_t gfp); void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata); void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, int encrypt); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index b7c8a4484298..4839a2d97a3b 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -233,9 +233,6 @@ static int ieee80211_open(struct net_device *dev) ieee80211_configure_filter(local); netif_addr_unlock_bh(local->mdev); break; - case NL80211_IFTYPE_STATION: - sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET; - /* fall through */ default: conf.vif = &sdata->vif; conf.type = sdata->vif.type; @@ -366,18 +363,6 @@ static int ieee80211_stop(struct net_device *dev) rcu_read_unlock(); /* - * Announce that we are leaving the network, in case we are a - * station interface type. This must be done before removing - * all stations associated with sta_info_flush, otherwise STA - * information will be gone and no announce being done. - */ - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - if (sdata->u.mgd.state != IEEE80211_STA_MLME_DISABLED) - ieee80211_sta_deauthenticate(sdata, - WLAN_REASON_DEAUTH_LEAVING); - } - - /* * Remove all stations associated with this interface. * * This must be done before calling ops->remove_interface() @@ -462,7 +447,6 @@ static int ieee80211_stop(struct net_device *dev) netif_addr_unlock_bh(local->mdev); break; case NL80211_IFTYPE_STATION: - memset(sdata->u.mgd.bssid, 0, ETH_ALEN); del_timer_sync(&sdata->u.mgd.chswitch_timer); del_timer_sync(&sdata->u.mgd.timer); /* @@ -485,12 +469,6 @@ static int ieee80211_stop(struct net_device *dev) */ synchronize_rcu(); skb_queue_purge(&sdata->u.mgd.skb_queue); - - sdata->u.mgd.flags &= ~(IEEE80211_STA_PRIVACY_INVOKED | - IEEE80211_STA_TKIP_WEP_USED); - kfree(sdata->u.mgd.extra_ie); - sdata->u.mgd.extra_ie = NULL; - sdata->u.mgd.extra_ie_len = 0; /* fall through */ case NL80211_IFTYPE_ADHOC: if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { @@ -652,11 +630,6 @@ static void ieee80211_teardown_sdata(struct net_device *dev) kfree_skb(sdata->u.ibss.presp); break; case NL80211_IFTYPE_STATION: - kfree(sdata->u.mgd.extra_ie); - kfree(sdata->u.mgd.assocreq_ies); - kfree(sdata->u.mgd.assocresp_ies); - kfree(sdata->u.mgd.sme_auth_ie); - break; case NL80211_IFTYPE_WDS: case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_MONITOR: @@ -939,7 +912,8 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local) continue; /* do not count disabled managed interfaces */ if (sdata->vif.type == NL80211_IFTYPE_STATION && - sdata->u.mgd.state == IEEE80211_STA_MLME_DISABLED) + !sdata->u.mgd.associated && + list_empty(&sdata->u.mgd.work_list)) continue; /* do not count unused IBSS interfaces */ if (sdata->vif.type == NL80211_IFTYPE_ADHOC && diff --git a/net/mac80211/key.c b/net/mac80211/key.c index ce267565e180..659a42d529e3 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -67,6 +67,8 @@ static DECLARE_WORK(todo_work, key_todo); * * @key: key to add to do item for * @flag: todo flag(s) + * + * Must be called with IRQs or softirqs disabled. */ static void add_todo(struct ieee80211_key *key, u32 flag) { @@ -140,9 +142,9 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key) ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf); if (!ret) { - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); } if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP) @@ -164,12 +166,12 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) if (!key || !key->local->ops->set_key) return; - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) { - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); return; } - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); sta = get_sta_for_key(key); sdata = key->sdata; @@ -188,9 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) wiphy_name(key->local->hw.wiphy), key->conf.keyidx, sta ? sta->addr : bcast_addr, ret); - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); } static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, @@ -437,14 +439,14 @@ void ieee80211_key_link(struct ieee80211_key *key, __ieee80211_key_replace(sdata, sta, old_key, key); - spin_unlock_irqrestore(&sdata->local->key_lock, flags); - /* free old key later */ add_todo(old_key, KEY_FLAG_TODO_DELETE); add_todo(key, KEY_FLAG_TODO_ADD_DEBUGFS); if (netif_running(sdata->dev)) add_todo(key, KEY_FLAG_TODO_HWACCEL_ADD); + + spin_unlock_irqrestore(&sdata->local->key_lock, flags); } static void __ieee80211_key_free(struct ieee80211_key *key) @@ -547,7 +549,7 @@ static void __ieee80211_key_todo(void) */ synchronize_rcu(); - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); while (!list_empty(&todo_list)) { key = list_first_entry(&todo_list, struct ieee80211_key, todo); list_del_init(&key->todo); @@ -558,7 +560,7 @@ static void __ieee80211_key_todo(void) KEY_FLAG_TODO_HWACCEL_REMOVE | KEY_FLAG_TODO_DELETE); key->flags &= ~todoflags; - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); work_done = false; @@ -591,9 +593,9 @@ static void __ieee80211_key_todo(void) WARN_ON(!work_done); - spin_lock(&todo_lock); + spin_lock_bh(&todo_lock); } - spin_unlock(&todo_lock); + spin_unlock_bh(&todo_lock); } void ieee80211_key_todo(void) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 092a017b237e..5b69f5f07299 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -330,19 +330,16 @@ static void ieee80211_tasklet_handler(unsigned long data) { struct ieee80211_local *local = (struct ieee80211_local *) data; struct sk_buff *skb; - struct ieee80211_rx_status rx_status; struct ieee80211_ra_tid *ra_tid; while ((skb = skb_dequeue(&local->skb_queue)) || (skb = skb_dequeue(&local->skb_queue_unreliable))) { switch (skb->pkt_type) { case IEEE80211_RX_MSG: - /* status is in skb->cb */ - memcpy(&rx_status, skb->cb, sizeof(rx_status)); /* Clear skb->pkt_type in order to not confuse kernel * netstack. */ skb->pkt_type = 0; - __ieee80211_rx(local_to_hw(local), skb, &rx_status); + ieee80211_rx(local_to_hw(local), skb); break; case IEEE80211_TX_STATUS_MSG: skb->pkt_type = 0; diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 11cf45bce38a..542ea025494e 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -568,7 +568,7 @@ static void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, ifmsh = &sdata->u.mesh; - rx_status = (struct ieee80211_rx_status *) skb->cb; + rx_status = IEEE80211_SKB_RXCB(skb); mgmt = (struct ieee80211_mgmt *) skb->data; stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; @@ -671,8 +671,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) } ieee80211_rx_result -ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) +ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; @@ -689,7 +688,6 @@ ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, case IEEE80211_STYPE_PROBE_RESP: case IEEE80211_STYPE_BEACON: case IEEE80211_STYPE_ACTION: - memcpy(skb->cb, rx_status, sizeof(*rx_status)); skb_queue_tail(&ifmsh->skb_queue, skb); queue_work(local->hw.workqueue, &ifmsh->work); return RX_QUEUED; diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index c7d72819cdd2..2a2ed182cb7e 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -208,8 +208,7 @@ void ieee80211s_init(void); void ieee80211s_stop(void); void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata); ieee80211_rx_result -ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); +ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata); void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index aca22b00b6a3..c9db9646025b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -27,43 +27,54 @@ #include "rate.h" #include "led.h" -#define IEEE80211_ASSOC_SCANS_MAX_TRIES 2 #define IEEE80211_AUTH_TIMEOUT (HZ / 5) #define IEEE80211_AUTH_MAX_TRIES 3 #define IEEE80211_ASSOC_TIMEOUT (HZ / 5) #define IEEE80211_ASSOC_MAX_TRIES 3 #define IEEE80211_MONITORING_INTERVAL (2 * HZ) #define IEEE80211_PROBE_WAIT (HZ / 5) -#define IEEE80211_PROBE_IDLE_TIME (60 * HZ) -#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ) #define TMR_RUNNING_TIMER 0 #define TMR_RUNNING_CHANSW 1 +/* + * All cfg80211 functions have to be called outside a locked + * section so that they can acquire a lock themselves... This + * is much simpler than queuing up things in cfg80211, but we + * do need some indirection for that here. + */ +enum rx_mgmt_action { + /* no action required */ + RX_MGMT_NONE, + + /* caller must call cfg80211_send_rx_auth() */ + RX_MGMT_CFG80211_AUTH, + + /* caller must call cfg80211_send_rx_assoc() */ + RX_MGMT_CFG80211_ASSOC, + + /* caller must call cfg80211_send_deauth() */ + RX_MGMT_CFG80211_DEAUTH, + + /* caller must call cfg80211_send_disassoc() */ + RX_MGMT_CFG80211_DISASSOC, + + /* caller must call cfg80211_auth_timeout() & free work */ + RX_MGMT_CFG80211_AUTH_TO, + + /* caller must call cfg80211_assoc_timeout() & free work */ + RX_MGMT_CFG80211_ASSOC_TO, +}; + /* utils */ -static int ecw2cw(int ecw) +static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd) { - return (1 << ecw) - 1; + WARN_ON(!mutex_is_locked(&ifmgd->mtx)); } -static u8 *ieee80211_bss_get_ie(struct ieee80211_bss *bss, u8 ie) +static int ecw2cw(int ecw) { - u8 *end, *pos; - - pos = bss->cbss.information_elements; - if (pos == NULL) - return NULL; - end = pos + bss->cbss.len_information_elements; - - while (pos + 1 < end) { - if (pos + 2 + pos[1] > end) - break; - if (pos[0] == ie) - return pos; - pos += 2 + pos[1]; - } - - return NULL; + return (1 << ecw) - 1; } static int ieee80211_compatible_rates(struct ieee80211_bss *bss, @@ -94,11 +105,10 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss, */ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, struct ieee80211_ht_info *hti, - u16 ap_ht_cap_flags) + const u8 *bssid, u16 ap_ht_cap_flags) { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct sta_info *sta; u32 changed = 0; u16 ht_opmode; @@ -147,12 +157,10 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, ieee80211_hw_config(local, 0); rcu_read_lock(); - - sta = sta_info_get(local, ifmgd->bssid); + sta = sta_info_get(local, bssid); if (sta) rate_control_rate_update(local, sband, sta, IEEE80211_RC_HT_CHANGED); - rcu_read_unlock(); } @@ -175,23 +183,24 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, /* frame sending functions */ -static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) +static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - u8 *pos, *ies, *ht_ie; + u8 *pos; + const u8 *ies, *ht_ie; int i, len, count, rates_len, supp_rates_len; u16 capab; - struct ieee80211_bss *bss; int wmm = 0; struct ieee80211_supported_band *sband; u32 rates = 0; skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*mgmt) + 200 + ifmgd->extra_ie_len + - ifmgd->ssid_len); + sizeof(*mgmt) + 200 + wk->ie_len + + wk->ssid_len); if (!skb) { printk(KERN_DEBUG "%s: failed to allocate buffer for assoc " "frame\n", sdata->dev->name); @@ -210,45 +219,35 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; } - bss = ieee80211_rx_bss_get(local, ifmgd->bssid, - local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - if (bss) { - if (bss->cbss.capability & WLAN_CAPABILITY_PRIVACY) - capab |= WLAN_CAPABILITY_PRIVACY; - if (bss->wmm_used) - wmm = 1; + if (wk->bss->cbss.capability & WLAN_CAPABILITY_PRIVACY) + capab |= WLAN_CAPABILITY_PRIVACY; + if (wk->bss->wmm_used) + wmm = 1; - /* get all rates supported by the device and the AP as - * some APs don't like getting a superset of their rates - * in the association request (e.g. D-Link DAP 1353 in - * b-only mode) */ - rates_len = ieee80211_compatible_rates(bss, sband, &rates); + /* get all rates supported by the device and the AP as + * some APs don't like getting a superset of their rates + * in the association request (e.g. D-Link DAP 1353 in + * b-only mode) */ + rates_len = ieee80211_compatible_rates(wk->bss, sband, &rates); - if ((bss->cbss.capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && - (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)) - capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; - - ieee80211_rx_bss_put(local, bss); - } else { - rates = ~0; - rates_len = sband->n_bitrates; - } + if ((wk->bss->cbss.capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && + (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)) + capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); memset(mgmt, 0, 24); - memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN); + memcpy(mgmt->da, wk->bss->cbss.bssid, ETH_ALEN); memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN); + memcpy(mgmt->bssid, wk->bss->cbss.bssid, ETH_ALEN); - if (ifmgd->flags & IEEE80211_STA_PREV_BSSID_SET) { + if (!is_zero_ether_addr(wk->prev_bssid)) { skb_put(skb, 10); mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab); mgmt->u.reassoc_req.listen_interval = cpu_to_le16(local->hw.conf.listen_interval); - memcpy(mgmt->u.reassoc_req.current_ap, ifmgd->prev_bssid, + memcpy(mgmt->u.reassoc_req.current_ap, wk->prev_bssid, ETH_ALEN); } else { skb_put(skb, 4); @@ -260,10 +259,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) } /* SSID */ - ies = pos = skb_put(skb, 2 + ifmgd->ssid_len); + ies = pos = skb_put(skb, 2 + wk->ssid_len); *pos++ = WLAN_EID_SSID; - *pos++ = ifmgd->ssid_len; - memcpy(pos, ifmgd->ssid, ifmgd->ssid_len); + *pos++ = wk->ssid_len; + memcpy(pos, wk->ssid, wk->ssid_len); /* add all rates which were marked to be used above */ supp_rates_len = rates_len; @@ -318,9 +317,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) } } - if (ifmgd->extra_ie) { - pos = skb_put(skb, ifmgd->extra_ie_len); - memcpy(pos, ifmgd->extra_ie, ifmgd->extra_ie_len); + if (wk->ie_len && wk->ie) { + pos = skb_put(skb, wk->ie_len); + memcpy(pos, wk->ie, wk->ie_len); } if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED)) { @@ -345,9 +344,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) */ if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) && sband->ht_cap.ht_supported && - (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) && + (ht_ie = ieee80211_bss_get_ie(&wk->bss->cbss, WLAN_EID_HT_INFORMATION)) && ht_ie[1] >= sizeof(struct ieee80211_ht_info) && - (!(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))) { + (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))) { struct ieee80211_ht_info *ht_info = (struct ieee80211_ht_info *)(ht_ie + 2); u16 cap = sband->ht_cap.cap; @@ -382,18 +381,13 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs)); } - kfree(ifmgd->assocreq_ies); - ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies; - ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL); - if (ifmgd->assocreq_ies) - memcpy(ifmgd->assocreq_ies, ies, ifmgd->assocreq_ies_len); - ieee80211_tx_skb(sdata, skb, 0); } static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, - u16 stype, u16 reason) + const u8 *bssid, u16 stype, u16 reason, + void *cookie) { struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -410,18 +404,18 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); memset(mgmt, 0, 24); - memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN); + memcpy(mgmt->da, bssid, ETH_ALEN); memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN); + memcpy(mgmt->bssid, bssid, ETH_ALEN); mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); skb_put(skb, 2); /* u.deauth.reason_code == u.disassoc.reason_code */ mgmt->u.deauth.reason_code = cpu_to_le16(reason); if (stype == IEEE80211_STYPE_DEAUTH) - cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len); + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, cookie); else - cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len); + cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len, cookie); ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED); } @@ -494,28 +488,26 @@ static void ieee80211_chswitch_work(struct work_struct *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work); - struct ieee80211_bss *bss; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; if (!netif_running(sdata->dev)) return; - bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid, - sdata->local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - if (!bss) - goto exit; + mutex_lock(&ifmgd->mtx); + if (!ifmgd->associated) + goto out; sdata->local->oper_channel = sdata->local->csa_channel; + ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL); + /* XXX: shouldn't really modify cfg80211-owned data! */ - if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL)) - bss->cbss.channel = sdata->local->oper_channel; + ifmgd->associated->cbss.channel = sdata->local->oper_channel; - ieee80211_rx_bss_put(sdata->local, bss); -exit: - ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; ieee80211_wake_queues_by_reason(&sdata->local->hw, IEEE80211_QUEUE_STOP_REASON_CSA); + out: + ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; + mutex_unlock(&ifmgd->mtx); } static void ieee80211_chswitch_timer(unsigned long data) @@ -540,7 +532,9 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num); - if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED) + ASSERT_MGD_MTX(ifmgd); + + if (!ifmgd->associated) return; if (sdata->local->sw_scanning || sdata->local->hw_scanning) @@ -651,7 +645,7 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) } if (count == 1 && found->u.mgd.powersave && - (found->u.mgd.flags & IEEE80211_STA_ASSOCIATED) && + found->u.mgd.associated && list_empty(&found->u.mgd.work_list) && !(found->u.mgd.flags & IEEE80211_STA_PROBEREQ_POLL)) { s32 beaconint_us; @@ -806,9 +800,6 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, u16 capab, bool erp_valid, u8 erp) { struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; -#endif u32 changed = 0; bool use_protection; bool use_short_preamble; @@ -825,42 +816,16 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); if (use_protection != bss_conf->use_cts_prot) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: CTS protection %s (BSSID=%pM)\n", - sdata->dev->name, - use_protection ? "enabled" : "disabled", - ifmgd->bssid); - } -#endif bss_conf->use_cts_prot = use_protection; changed |= BSS_CHANGED_ERP_CTS_PROT; } if (use_short_preamble != bss_conf->use_short_preamble) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: switched to %s barker preamble" - " (BSSID=%pM)\n", - sdata->dev->name, - use_short_preamble ? "short" : "long", - ifmgd->bssid); - } -#endif bss_conf->use_short_preamble = use_short_preamble; changed |= BSS_CHANGED_ERP_PREAMBLE; } if (use_short_slot != bss_conf->use_short_slot) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: switched to %s slot time" - " (BSSID=%pM)\n", - sdata->dev->name, - use_short_slot ? "short" : "long", - ifmgd->bssid); - } -#endif bss_conf->use_short_slot = use_short_slot; changed |= BSS_CHANGED_ERP_SLOT; } @@ -868,105 +833,25 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, return changed; } -static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata) -{ - union iwreq_data wrqu; - - memset(&wrqu, 0, sizeof(wrqu)); - if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) - memcpy(wrqu.ap_addr.sa_data, sdata->u.mgd.bssid, ETH_ALEN); - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL); -} - -static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - char *buf; - size_t len; - int i; - union iwreq_data wrqu; - - if (!ifmgd->assocreq_ies && !ifmgd->assocresp_ies) - return; - - buf = kmalloc(50 + 2 * (ifmgd->assocreq_ies_len + - ifmgd->assocresp_ies_len), GFP_KERNEL); - if (!buf) - return; - - len = sprintf(buf, "ASSOCINFO("); - if (ifmgd->assocreq_ies) { - len += sprintf(buf + len, "ReqIEs="); - for (i = 0; i < ifmgd->assocreq_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifmgd->assocreq_ies[i]); - } - } - if (ifmgd->assocresp_ies) { - if (ifmgd->assocreq_ies) - len += sprintf(buf + len, " "); - len += sprintf(buf + len, "RespIEs="); - for (i = 0; i < ifmgd->assocresp_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifmgd->assocresp_ies[i]); - } - } - len += sprintf(buf + len, ")"); - - if (len > IW_CUSTOM_MAX) { - len = sprintf(buf, "ASSOCRESPIE="); - for (i = 0; i < ifmgd->assocresp_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifmgd->assocresp_ies[i]); - } - } - - if (len <= IW_CUSTOM_MAX) { - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = len; - wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf); - } - - kfree(buf); -} - - static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss *bss, u32 bss_info_changed) { - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - struct ieee80211_conf *conf = &local_to_hw(local)->conf; - - struct ieee80211_bss *bss; bss_info_changed |= BSS_CHANGED_ASSOC; - ifmgd->flags |= IEEE80211_STA_ASSOCIATED; + /* set timing information */ + sdata->vif.bss_conf.beacon_int = bss->cbss.beacon_interval; + sdata->vif.bss_conf.timestamp = bss->cbss.tsf; + sdata->vif.bss_conf.dtim_period = bss->dtim_period; - bss = ieee80211_rx_bss_get(local, ifmgd->bssid, - conf->channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - if (bss) { - /* set timing information */ - sdata->vif.bss_conf.beacon_int = bss->cbss.beacon_interval; - sdata->vif.bss_conf.timestamp = bss->cbss.tsf; - sdata->vif.bss_conf.dtim_period = bss->dtim_period; + bss_info_changed |= BSS_CHANGED_BEACON_INT; + bss_info_changed |= ieee80211_handle_bss_capability(sdata, + bss->cbss.capability, bss->has_erp_value, bss->erp_value); - bss_info_changed |= BSS_CHANGED_BEACON_INT; - bss_info_changed |= ieee80211_handle_bss_capability(sdata, - bss->cbss.capability, bss->has_erp_value, bss->erp_value); + sdata->u.mgd.associated = bss; + memcpy(sdata->u.mgd.bssid, bss->cbss.bssid, ETH_ALEN); - cfg80211_hold_bss(&bss->cbss); - - ieee80211_rx_bss_put(local, bss); - } - - ifmgd->flags |= IEEE80211_STA_PREV_BSSID_SET; - memcpy(ifmgd->prev_bssid, sdata->u.mgd.bssid, ETH_ALEN); - ieee80211_sta_send_associnfo(sdata); - - ifmgd->last_probe = jiffies; ieee80211_led_assoc(local, 1); sdata->vif.bss_conf.assoc = 1; @@ -991,167 +876,135 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, netif_tx_start_all_queues(sdata->dev); netif_carrier_on(sdata->dev); - - ieee80211_sta_send_apinfo(sdata); } -static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata) +static enum rx_mgmt_action __must_check +ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - ifmgd->direct_probe_tries++; - if (ifmgd->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) { + wk->tries++; + if (wk->tries > IEEE80211_AUTH_MAX_TRIES) { printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n", - sdata->dev->name, ifmgd->bssid); - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid); + sdata->dev->name, wk->bss->cbss.bssid); /* * Most likely AP is not in the range so remove the - * bss information associated to the AP + * bss struct for that AP. */ - ieee80211_rx_bss_remove(sdata, ifmgd->bssid, - sdata->local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); + cfg80211_unlink_bss(local->hw.wiphy, &wk->bss->cbss); /* * We might have a pending scan which had no chance to run yet - * due to state == IEEE80211_STA_MLME_DIRECT_PROBE. - * Hence, queue the STAs work again + * due to work needing to be done. Hence, queue the STAs work + * again for that. */ queue_work(local->hw.workqueue, &ifmgd->work); - return; + return RX_MGMT_CFG80211_AUTH_TO; } - printk(KERN_DEBUG "%s: direct probe to AP %pM try %d\n", - sdata->dev->name, ifmgd->bssid, - ifmgd->direct_probe_tries); - - ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE; + printk(KERN_DEBUG "%s: direct probe to AP %pM (try %d)\n", + sdata->dev->name, wk->bss->cbss.bssid, + wk->tries); - /* Direct probe is sent to broadcast address as some APs + /* + * Direct probe is sent to broadcast address as some APs * will not answer to direct packet in unassociated state. */ - ieee80211_send_probe_req(sdata, NULL, - ifmgd->ssid, ifmgd->ssid_len, NULL, 0); + ieee80211_send_probe_req(sdata, NULL, wk->ssid, wk->ssid_len, NULL, 0); + + wk->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; + mod_timer(&ifmgd->timer, wk->timeout); - mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT); + return RX_MGMT_NONE; } -static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata) +static enum rx_mgmt_action __must_check +ieee80211_authenticate(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - u8 *ies; - size_t ies_len; - ifmgd->auth_tries++; - if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) { + wk->tries++; + if (wk->tries > IEEE80211_AUTH_MAX_TRIES) { printk(KERN_DEBUG "%s: authentication with AP %pM" " timed out\n", - sdata->dev->name, ifmgd->bssid); - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid); - ieee80211_rx_bss_remove(sdata, ifmgd->bssid, - sdata->local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); + sdata->dev->name, wk->bss->cbss.bssid); + + /* + * Most likely AP is not in the range so remove the + * bss struct for that AP. + */ + cfg80211_unlink_bss(local->hw.wiphy, &wk->bss->cbss); /* * We might have a pending scan which had no chance to run yet - * due to state == IEEE80211_STA_MLME_AUTHENTICATE. - * Hence, queue the STAs work again + * due to work needing to be done. Hence, queue the STAs work + * again for that. */ queue_work(local->hw.workqueue, &ifmgd->work); - return; + return RX_MGMT_CFG80211_AUTH_TO; } - ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE; - printk(KERN_DEBUG "%s: authenticate with AP %pM\n", - sdata->dev->name, ifmgd->bssid); + printk(KERN_DEBUG "%s: authenticate with AP %pM (try %d)\n", + sdata->dev->name, wk->bss->cbss.bssid, wk->tries); - if (ifmgd->flags & IEEE80211_STA_EXT_SME) { - ies = ifmgd->sme_auth_ie; - ies_len = ifmgd->sme_auth_ie_len; - } else { - ies = NULL; - ies_len = 0; - } - ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ies, ies_len, - ifmgd->bssid, 0); - ifmgd->auth_transaction = 2; + ieee80211_send_auth(sdata, 1, wk->auth_alg, wk->ie, wk->ie_len, + wk->bss->cbss.bssid, 0); + wk->auth_transaction = 2; - mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT); + wk->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; + mod_timer(&ifmgd->timer, wk->timeout); + + return RX_MGMT_NONE; } -/* - * The disassoc 'reason' argument can be either our own reason - * if self disconnected or a reason code from the AP. - */ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, - bool deauth, bool self_disconnected, - u16 reason) + const u8 *bssid, bool deauth) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - struct ieee80211_conf *conf = &local_to_hw(local)->conf; - struct ieee80211_bss *bss; struct sta_info *sta; u32 changed = 0, config_changed = 0; - if (deauth) { - ifmgd->direct_probe_tries = 0; - ifmgd->auth_tries = 0; - } - ifmgd->assoc_scan_tries = 0; - ifmgd->assoc_tries = 0; + ASSERT_MGD_MTX(ifmgd); + + ifmgd->associated = NULL; + memset(ifmgd->bssid, 0, ETH_ALEN); + + /* + * we need to commit the associated = NULL change because the + * scan code uses that to determine whether this iface should + * go to/wake up from powersave or not -- and could otherwise + * wake the queues erroneously. + */ + smp_mb(); + + /* + * Thus, we can only afterwards stop the queues -- to account + * for the case where another CPU is finishing a scan at this + * time -- we don't want the scan code to enable queues. + */ netif_tx_stop_all_queues(sdata->dev); netif_carrier_off(sdata->dev); rcu_read_lock(); - sta = sta_info_get(local, ifmgd->bssid); + sta = sta_info_get(local, bssid); if (sta) ieee80211_sta_tear_down_BA_sessions(sta); rcu_read_unlock(); - bss = ieee80211_rx_bss_get(local, ifmgd->bssid, - conf->channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - - if (bss) { - cfg80211_unhold_bss(&bss->cbss); - ieee80211_rx_bss_put(local, bss); - } - - if (self_disconnected) { - if (deauth) - ieee80211_send_deauth_disassoc(sdata, - IEEE80211_STYPE_DEAUTH, reason); - else - ieee80211_send_deauth_disassoc(sdata, - IEEE80211_STYPE_DISASSOC, reason); - } - - ifmgd->flags &= ~IEEE80211_STA_ASSOCIATED; changed |= ieee80211_reset_erp_info(sdata); ieee80211_led_assoc(local, 0); changed |= BSS_CHANGED_ASSOC; sdata->vif.bss_conf.assoc = false; - ieee80211_sta_send_apinfo(sdata); - - if (self_disconnected || reason == WLAN_REASON_DISASSOC_STA_HAS_LEFT) { - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_rx_bss_remove(sdata, ifmgd->bssid, - sdata->local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - } - ieee80211_set_wmm_default(sdata); ieee80211_recalc_idle(local); @@ -1180,7 +1033,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, rcu_read_lock(); - sta = sta_info_get(local, ifmgd->bssid); + sta = sta_info_get(local, bssid); if (!sta) { rcu_read_unlock(); return; @@ -1193,83 +1046,42 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, sta_info_destroy(sta); } -static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata) -{ - if (!sdata || !sdata->default_key || - sdata->default_key->conf.alg != ALG_WEP) - return 0; - return 1; -} - -static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - struct ieee80211_bss *bss; - int bss_privacy; - int wep_privacy; - int privacy_invoked; - - if (!ifmgd || (ifmgd->flags & IEEE80211_STA_EXT_SME)) - return 0; - - bss = ieee80211_rx_bss_get(local, ifmgd->bssid, - local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - if (!bss) - return 0; - - bss_privacy = !!(bss->cbss.capability & WLAN_CAPABILITY_PRIVACY); - wep_privacy = !!ieee80211_sta_wep_configured(sdata); - privacy_invoked = !!(ifmgd->flags & IEEE80211_STA_PRIVACY_INVOKED); - - ieee80211_rx_bss_put(local, bss); - - if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked)) - return 0; - - return 1; -} - -static void ieee80211_associate(struct ieee80211_sub_if_data *sdata) +static enum rx_mgmt_action __must_check +ieee80211_associate(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - ifmgd->assoc_tries++; - if (ifmgd->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) { + wk->tries++; + if (wk->tries > IEEE80211_ASSOC_MAX_TRIES) { printk(KERN_DEBUG "%s: association with AP %pM" " timed out\n", - sdata->dev->name, ifmgd->bssid); - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - cfg80211_send_assoc_timeout(sdata->dev, ifmgd->bssid); - ieee80211_rx_bss_remove(sdata, ifmgd->bssid, - sdata->local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); + sdata->dev->name, wk->bss->cbss.bssid); + + /* + * Most likely AP is not in the range so remove the + * bss struct for that AP. + */ + cfg80211_unlink_bss(local->hw.wiphy, &wk->bss->cbss); + /* * We might have a pending scan which had no chance to run yet - * due to state == IEEE80211_STA_MLME_ASSOCIATE. - * Hence, queue the STAs work again + * due to work needing to be done. Hence, queue the STAs work + * again for that. */ queue_work(local->hw.workqueue, &ifmgd->work); - return; + return RX_MGMT_CFG80211_ASSOC_TO; } - ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE; - printk(KERN_DEBUG "%s: associate with AP %pM\n", - sdata->dev->name, ifmgd->bssid); - if (ieee80211_privacy_mismatch(sdata)) { - printk(KERN_DEBUG "%s: mismatch in privacy configuration and " - "mixed-cell disabled - abort association\n", sdata->dev->name); - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - return; - } + printk(KERN_DEBUG "%s: associate with AP %pM (try %d)\n", + sdata->dev->name, wk->bss->cbss.bssid, wk->tries); + ieee80211_send_assoc(sdata, wk); - ieee80211_send_assoc(sdata); + wk->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; + mod_timer(&ifmgd->timer, wk->timeout); - mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT); + return RX_MGMT_NONE; } void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, @@ -1294,6 +1106,7 @@ void ieee80211_beacon_loss_work(struct work_struct *work) container_of(work, struct ieee80211_sub_if_data, u.mgd.beacon_loss_work); struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + const u8 *ssid; /* * The driver has already reported this event and we have @@ -1306,12 +1119,15 @@ void ieee80211_beacon_loss_work(struct work_struct *work) if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) return; + mutex_lock(&ifmgd->mtx); + + if (!ifmgd->associated) + goto out; + #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM " - "- sending probe request\n", sdata->dev->name, - sdata->u.mgd.bssid); - } + if (net_ratelimit()) + printk(KERN_DEBUG "%s: driver reports beacon loss from AP " + "- sending probe request\n", sdata->dev->name); #endif ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL; @@ -1320,10 +1136,13 @@ void ieee80211_beacon_loss_work(struct work_struct *work) ieee80211_recalc_ps(sdata->local, -1); mutex_unlock(&sdata->local->iflist_mtx); - ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid, - ifmgd->ssid_len, NULL, 0); + ssid = ieee80211_bss_get_ie(&ifmgd->associated->cbss, WLAN_EID_SSID); + ieee80211_send_probe_req(sdata, ifmgd->associated->cbss.bssid, + ssid + 2, ssid[1], NULL, 0); mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT); + out: + mutex_unlock(&ifmgd->mtx); } void ieee80211_beacon_loss(struct ieee80211_vif *vif) @@ -1335,105 +1154,16 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif) } EXPORT_SYMBOL(ieee80211_beacon_loss); -static void ieee80211_associated(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - struct sta_info *sta; - unsigned long last_rx; - bool disassoc = false; - - /* TODO: start monitoring current AP signal quality and number of - * missed beacons. Scan other channels every now and then and search - * for better APs. */ - /* TODO: remove expired BSSes */ - - ifmgd->state = IEEE80211_STA_MLME_ASSOCIATED; - - rcu_read_lock(); - - sta = sta_info_get(local, ifmgd->bssid); - if (!sta) { - printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n", - sdata->dev->name, ifmgd->bssid); - disassoc = true; - rcu_read_unlock(); - goto out; - } - - last_rx = sta->last_rx; - rcu_read_unlock(); - - if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) && - time_after(jiffies, last_rx + IEEE80211_PROBE_WAIT)) { - printk(KERN_DEBUG "%s: no probe response from AP %pM " - "- disassociating\n", - sdata->dev->name, ifmgd->bssid); - disassoc = true; - ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL; - goto out; - } - - /* - * Beacon filtering is only enabled with power save and then the - * stack should not check for beacon loss. - */ - if (!((local->hw.flags & IEEE80211_HW_BEACON_FILTER) && - (local->hw.conf.flags & IEEE80211_CONF_PS)) && - time_after(jiffies, - ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: beacon loss from AP %pM " - "- sending probe request\n", - sdata->dev->name, ifmgd->bssid); - } -#endif - ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL; - mutex_lock(&local->iflist_mtx); - ieee80211_recalc_ps(local, -1); - mutex_unlock(&local->iflist_mtx); - ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid, - ifmgd->ssid_len, NULL, 0); - mod_timer(&ifmgd->timer, jiffies + IEEE80211_PROBE_WAIT); - goto out; - } - - if (time_after(jiffies, last_rx + IEEE80211_PROBE_IDLE_TIME)) { - ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL; - mutex_lock(&local->iflist_mtx); - ieee80211_recalc_ps(local, -1); - mutex_unlock(&local->iflist_mtx); - ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid, - ifmgd->ssid_len, NULL, 0); - } - - out: - if (!disassoc) - mod_timer(&ifmgd->timer, - jiffies + IEEE80211_MONITORING_INTERVAL); - else - ieee80211_set_disassoc(sdata, true, true, - WLAN_REASON_PREV_AUTH_NOT_VALID); -} - - -static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata) +static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk) { - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - + wk->state = IEEE80211_MGD_STATE_IDLE; printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name); - ifmgd->flags |= IEEE80211_STA_AUTHENTICATED; - if (ifmgd->flags & IEEE80211_STA_EXT_SME) { - /* Wait for SME to request association */ - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(sdata->local); - } else - ieee80211_associate(sdata); } static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk, struct ieee80211_mgmt *mgmt, size_t len) { @@ -1444,161 +1174,132 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); if (!elems.challenge) return; - ieee80211_send_auth(sdata, 3, sdata->u.mgd.auth_alg, + ieee80211_send_auth(sdata, 3, wk->auth_alg, elems.challenge - 2, elems.challenge_len + 2, - sdata->u.mgd.bssid, 1); - sdata->u.mgd.auth_transaction = 4; + wk->bss->cbss.bssid, 1); + wk->auth_transaction = 4; } -static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len) +static enum rx_mgmt_action __must_check +ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk, + struct ieee80211_mgmt *mgmt, size_t len) { - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u16 auth_alg, auth_transaction, status_code; - if (ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE) - return; + if (wk->state != IEEE80211_MGD_STATE_AUTH) + return RX_MGMT_NONE; if (len < 24 + 6) - return; + return RX_MGMT_NONE; - if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0) - return; + if (memcmp(wk->bss->cbss.bssid, mgmt->sa, ETH_ALEN) != 0) + return RX_MGMT_NONE; - if (memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0) - return; + if (memcmp(wk->bss->cbss.bssid, mgmt->bssid, ETH_ALEN) != 0) + return RX_MGMT_NONE; auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); status_code = le16_to_cpu(mgmt->u.auth.status_code); - if (auth_alg != ifmgd->auth_alg || - auth_transaction != ifmgd->auth_transaction) - return; + if (auth_alg != wk->auth_alg || + auth_transaction != wk->auth_transaction) + return RX_MGMT_NONE; if (status_code != WLAN_STATUS_SUCCESS) { - if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { - u8 algs[3]; - const int num_algs = ARRAY_SIZE(algs); - int i, pos; - algs[0] = algs[1] = algs[2] = 0xff; - if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN) - algs[0] = WLAN_AUTH_OPEN; - if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY) - algs[1] = WLAN_AUTH_SHARED_KEY; - if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP) - algs[2] = WLAN_AUTH_LEAP; - if (ifmgd->auth_alg == WLAN_AUTH_OPEN) - pos = 0; - else if (ifmgd->auth_alg == WLAN_AUTH_SHARED_KEY) - pos = 1; - else - pos = 2; - for (i = 0; i < num_algs; i++) { - pos++; - if (pos >= num_algs) - pos = 0; - if (algs[pos] == ifmgd->auth_alg || - algs[pos] == 0xff) - continue; - if (algs[pos] == WLAN_AUTH_SHARED_KEY && - !ieee80211_sta_wep_configured(sdata)) - continue; - ifmgd->auth_alg = algs[pos]; - break; - } - } - return; + list_del(&wk->list); + kfree(wk); + return RX_MGMT_CFG80211_AUTH; } - switch (ifmgd->auth_alg) { + switch (wk->auth_alg) { case WLAN_AUTH_OPEN: case WLAN_AUTH_LEAP: case WLAN_AUTH_FT: - ieee80211_auth_completed(sdata); - cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len); - break; + ieee80211_auth_completed(sdata, wk); + return RX_MGMT_CFG80211_AUTH; case WLAN_AUTH_SHARED_KEY: - if (ifmgd->auth_transaction == 4) { - ieee80211_auth_completed(sdata); - cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len); + if (wk->auth_transaction == 4) { + ieee80211_auth_completed(sdata, wk); + return RX_MGMT_CFG80211_AUTH; } else - ieee80211_auth_challenge(sdata, mgmt, len); + ieee80211_auth_challenge(sdata, wk, mgmt, len); break; } + + return RX_MGMT_NONE; } -static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len) +static enum rx_mgmt_action __must_check +ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk, + struct ieee80211_mgmt *mgmt, size_t len) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + const u8 *bssid = NULL; u16 reason_code; if (len < 24 + 2) - return; + return RX_MGMT_NONE; - if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN)) - return; + ASSERT_MGD_MTX(ifmgd); + + if (wk) + bssid = wk->bss->cbss.bssid; + else + bssid = ifmgd->associated->cbss.bssid; reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); - if (ifmgd->flags & IEEE80211_STA_AUTHENTICATED) - printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n", - sdata->dev->name, reason_code); + printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n", + sdata->dev->name, bssid, reason_code); - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) && - (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE || - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE || - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) { - ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE; - mod_timer(&ifmgd->timer, jiffies + - IEEE80211_RETRY_AUTH_INTERVAL); + if (!wk) { + ieee80211_set_disassoc(sdata, bssid, true); + } else { + list_del(&wk->list); + kfree(wk); } - ieee80211_set_disassoc(sdata, true, false, 0); - ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED; - cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, len); + return RX_MGMT_CFG80211_DEAUTH; } -static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len) +static enum rx_mgmt_action __must_check +ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u16 reason_code; if (len < 24 + 2) - return; + return RX_MGMT_NONE; - if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN)) - return; + ASSERT_MGD_MTX(ifmgd); - reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); + if (WARN_ON(!ifmgd->associated)) + return RX_MGMT_NONE; - if (ifmgd->flags & IEEE80211_STA_ASSOCIATED) - printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n", - sdata->dev->name, reason_code); + if (WARN_ON(memcmp(ifmgd->associated->cbss.bssid, mgmt->sa, ETH_ALEN))) + return RX_MGMT_NONE; - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) && - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) { - ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE; - mod_timer(&ifmgd->timer, jiffies + - IEEE80211_RETRY_AUTH_INTERVAL); - } + reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); + + printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n", + sdata->dev->name, reason_code); - ieee80211_set_disassoc(sdata, false, false, reason_code); - cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, len); + ieee80211_set_disassoc(sdata, ifmgd->associated->cbss.bssid, false); + return RX_MGMT_CFG80211_DISASSOC; } -static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len, - int reassoc) +static enum rx_mgmt_action __must_check +ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_work *wk, + struct ieee80211_mgmt *mgmt, size_t len, + bool reassoc) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; @@ -1614,17 +1315,16 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, bool have_higher_than_11mbit = false, newsta = false; u16 ap_ht_cap_flags; - /* AssocResp and ReassocResp have identical structure, so process both - * of them in this function. */ - - if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE) - return; + /* + * AssocResp and ReassocResp have identical structure, so process both + * of them in this function. + */ if (len < 24 + 6) - return; + return RX_MGMT_NONE; - if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0) - return; + if (memcmp(wk->bss->cbss.bssid, mgmt->sa, ETH_ALEN) != 0) + return RX_MGMT_NONE; capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); @@ -1647,26 +1347,19 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: AP rejected association temporarily; " "comeback duration %u TU (%u ms)\n", sdata->dev->name, tu, ms); + wk->timeout = jiffies + msecs_to_jiffies(ms); if (ms > IEEE80211_ASSOC_TIMEOUT) mod_timer(&ifmgd->timer, jiffies + msecs_to_jiffies(ms)); - return; + return RX_MGMT_NONE; } if (status_code != WLAN_STATUS_SUCCESS) { printk(KERN_DEBUG "%s: AP denied association (code=%d)\n", sdata->dev->name, status_code); - /* if this was a reassociation, ensure we try a "full" - * association next time. This works around some broken APs - * which do not correctly reject reassociation requests. */ - ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len); - if (ifmgd->flags & IEEE80211_STA_EXT_SME) { - /* Wait for SME to decide what to do next */ - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - } - return; + list_del(&wk->list); + kfree(wk); + return RX_MGMT_CFG80211_ASSOC; } if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) @@ -1677,51 +1370,38 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (!elems.supp_rates) { printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n", sdata->dev->name); - return; + return RX_MGMT_NONE; } printk(KERN_DEBUG "%s: associated\n", sdata->dev->name); ifmgd->aid = aid; - ifmgd->ap_capab = capab_info; - - kfree(ifmgd->assocresp_ies); - ifmgd->assocresp_ies_len = len - (pos - (u8 *) mgmt); - ifmgd->assocresp_ies = kmalloc(ifmgd->assocresp_ies_len, GFP_KERNEL); - if (ifmgd->assocresp_ies) - memcpy(ifmgd->assocresp_ies, pos, ifmgd->assocresp_ies_len); rcu_read_lock(); /* Add STA entry for the AP */ - sta = sta_info_get(local, ifmgd->bssid); + sta = sta_info_get(local, wk->bss->cbss.bssid); if (!sta) { newsta = true; - sta = sta_info_alloc(sdata, ifmgd->bssid, GFP_ATOMIC); + rcu_read_unlock(); + + sta = sta_info_alloc(sdata, wk->bss->cbss.bssid, GFP_KERNEL); if (!sta) { printk(KERN_DEBUG "%s: failed to alloc STA entry for" " the AP\n", sdata->dev->name); - rcu_read_unlock(); - return; + return RX_MGMT_NONE; } /* update new sta with its last rx activity */ sta->last_rx = jiffies; - } - /* - * FIXME: Do we really need to update the sta_info's information here? - * We already know about the AP (we found it in our list) so it - * should already be filled with the right info, no? - * As is stands, all this is racy because typically we assume - * the information that is filled in here (except flags) doesn't - * change while a STA structure is alive. As such, it should move - * to between the sta_info_alloc() and sta_info_insert() above. - */ + set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | + WLAN_STA_ASSOC_AP); + if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) + set_sta_flags(sta, WLAN_STA_AUTHORIZED); - set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP); - if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) - set_sta_flags(sta, WLAN_STA_AUTHORIZED); + rcu_read_lock(); + } rates = 0; basic_rates = 0; @@ -1771,8 +1451,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, else sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - /* If TKIP/WEP is used, no need to parse AP's HT capabilities */ - if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) + if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) ieee80211_ht_cap_ie_to_sta_ht_cap(sband, elems.ht_cap_elem, &sta->sta.ht_cap); @@ -1792,7 +1471,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: failed to insert STA entry for" " the AP (error %d)\n", sdata->dev->name, err); rcu_read_unlock(); - return; + return RX_MGMT_NONE; } } @@ -1806,15 +1485,16 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (elems.ht_info_elem && elems.wmm_param && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) && - !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) + !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem, + wk->bss->cbss.bssid, ap_ht_cap_flags); /* set AID and assoc capability, * ieee80211_set_associated() will tell the driver */ bss_conf->aid = aid; bss_conf->assoc_capability = capab_info; - ieee80211_set_associated(sdata, changed); + ieee80211_set_associated(sdata, wk->bss, changed); /* * initialise the time of last beacon to be the association time, @@ -1822,8 +1502,9 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, */ ifmgd->last_beacon = jiffies; - ieee80211_associated(sdata); - cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len); + list_del(&wk->list); + kfree(wk); + return RX_MGMT_CFG80211_ASSOC; } @@ -1851,23 +1532,25 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems, channel, beacon); - if (!bss) + if (bss) + ieee80211_rx_bss_put(local, bss); + + if (!sdata->u.mgd.associated) return; if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) && - (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN) == 0)) { + (memcmp(mgmt->bssid, sdata->u.mgd.associated->cbss.bssid, + ETH_ALEN) == 0)) { struct ieee80211_channel_sw_ie *sw_elem = (struct ieee80211_channel_sw_ie *)elems->ch_switch_elem; ieee80211_sta_process_chanswitch(sdata, sw_elem, bss); } - - ieee80211_rx_bss_put(local, bss); } static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len, + struct ieee80211_mgd_work *wk, + struct ieee80211_mgmt *mgmt, size_t len, struct ieee80211_rx_status *rx_status) { struct ieee80211_if_managed *ifmgd; @@ -1876,6 +1559,8 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, ifmgd = &sdata->u.mgd; + ASSERT_MGD_MTX(ifmgd); + if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN)) return; /* ignore ProbeResp to foreign address */ @@ -1889,13 +1574,17 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false); /* direct probe may be part of the association flow */ - if (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE) { + if (wk && wk->state == IEEE80211_MGD_STATE_PROBE) { printk(KERN_DEBUG "%s direct probe responded\n", sdata->dev->name); - ieee80211_authenticate(sdata); + wk->tries = 0; + wk->state = IEEE80211_MGD_STATE_AUTH; + WARN_ON(ieee80211_authenticate(sdata, wk) != RX_MGMT_NONE); } - if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) { + if (ifmgd->associated && + memcmp(mgmt->bssid, ifmgd->associated->cbss.bssid, ETH_ALEN) == 0 && + ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) { ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL; mutex_lock(&sdata->local->iflist_mtx); ieee80211_recalc_ps(sdata->local, -1); @@ -1937,6 +1626,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, bool erp_valid, directed_tim = false; u8 erp_value = 0; u32 ncrc; + u8 *bssid; + + ASSERT_MGD_MTX(ifmgd); /* Process beacon from the current BSS */ baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt; @@ -1946,8 +1638,12 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (rx_status->freq != local->hw.conf.channel->center_freq) return; - if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED) || - memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0) + if (WARN_ON(!ifmgd->associated)) + return; + + bssid = ifmgd->associated->cbss.bssid; + + if (WARN_ON(memcmp(bssid, mgmt->bssid, ETH_ALEN) != 0)) return; if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) { @@ -2019,15 +1715,15 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param && - !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) { + !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) { struct sta_info *sta; struct ieee80211_supported_band *sband; u16 ap_ht_cap_flags; rcu_read_lock(); - sta = sta_info_get(local, ifmgd->bssid); - if (!sta) { + sta = sta_info_get(local, bssid); + if (WARN_ON(!sta)) { rcu_read_unlock(); return; } @@ -2042,7 +1738,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, rcu_read_unlock(); changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem, - ap_ht_cap_flags); + bssid, ap_ht_cap_flags); } if (elems.country_elem) { @@ -2063,8 +1759,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, } ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) + struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; struct ieee80211_mgmt *mgmt; @@ -2080,12 +1775,12 @@ ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, case IEEE80211_STYPE_PROBE_REQ: case IEEE80211_STYPE_PROBE_RESP: case IEEE80211_STYPE_BEACON: - memcpy(skb->cb, rx_status, sizeof(*rx_status)); case IEEE80211_STYPE_AUTH: case IEEE80211_STYPE_ASSOC_RESP: case IEEE80211_STYPE_REASSOC_RESP: case IEEE80211_STYPE_DEAUTH: case IEEE80211_STYPE_DISASSOC: + case IEEE80211_STYPE_ACTION: skb_queue_tail(&sdata->u.mgd.skb_queue, skb); queue_work(local->hw.workqueue, &sdata->u.mgd.work); return RX_QUEUED; @@ -2097,40 +1792,116 @@ ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_rx_status *rx_status; struct ieee80211_mgmt *mgmt; + struct ieee80211_mgd_work *wk; + enum rx_mgmt_action rma = RX_MGMT_NONE; u16 fc; rx_status = (struct ieee80211_rx_status *) skb->cb; mgmt = (struct ieee80211_mgmt *) skb->data; fc = le16_to_cpu(mgmt->frame_control); - switch (fc & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_PROBE_RESP: - ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len, - rx_status); - break; - case IEEE80211_STYPE_BEACON: - ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, - rx_status); - break; - case IEEE80211_STYPE_AUTH: - ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len); - break; - case IEEE80211_STYPE_ASSOC_RESP: - ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 0); + mutex_lock(&ifmgd->mtx); + + if (ifmgd->associated && + memcmp(ifmgd->associated->cbss.bssid, mgmt->bssid, + ETH_ALEN) == 0) { + switch (fc & IEEE80211_FCTL_STYPE) { + case IEEE80211_STYPE_BEACON: + ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, + rx_status); + break; + case IEEE80211_STYPE_PROBE_RESP: + ieee80211_rx_mgmt_probe_resp(sdata, NULL, mgmt, + skb->len, rx_status); + break; + case IEEE80211_STYPE_DEAUTH: + rma = ieee80211_rx_mgmt_deauth(sdata, NULL, + mgmt, skb->len); + break; + case IEEE80211_STYPE_DISASSOC: + rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); + break; + case IEEE80211_STYPE_ACTION: + /* XXX: differentiate, can only happen for CSA now! */ + ieee80211_sta_process_chanswitch(sdata, + &mgmt->u.action.u.chan_switch.sw_elem, + ifmgd->associated); + break; + } + mutex_unlock(&ifmgd->mtx); + + switch (rma) { + case RX_MGMT_NONE: + /* no action */ + break; + case RX_MGMT_CFG80211_DEAUTH: + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, + NULL); + break; + case RX_MGMT_CFG80211_DISASSOC: + cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len, + NULL); + break; + default: + WARN(1, "unexpected: %d", rma); + } + goto out; + } + + list_for_each_entry(wk, &ifmgd->work_list, list) { + if (memcmp(wk->bss->cbss.bssid, mgmt->bssid, ETH_ALEN) != 0) + continue; + + switch (fc & IEEE80211_FCTL_STYPE) { + case IEEE80211_STYPE_PROBE_RESP: + ieee80211_rx_mgmt_probe_resp(sdata, wk, mgmt, skb->len, + rx_status); + break; + case IEEE80211_STYPE_AUTH: + rma = ieee80211_rx_mgmt_auth(sdata, wk, mgmt, skb->len); + break; + case IEEE80211_STYPE_ASSOC_RESP: + rma = ieee80211_rx_mgmt_assoc_resp(sdata, wk, mgmt, + skb->len, false); + break; + case IEEE80211_STYPE_REASSOC_RESP: + rma = ieee80211_rx_mgmt_assoc_resp(sdata, wk, mgmt, + skb->len, true); + break; + case IEEE80211_STYPE_DEAUTH: + rma = ieee80211_rx_mgmt_deauth(sdata, wk, mgmt, + skb->len); + break; + } + /* + * We've processed this frame for that work, so it can't + * belong to another work struct. + * NB: this is also required for correctness because the + * called functions can free 'wk', and for 'rma'! + */ break; - case IEEE80211_STYPE_REASSOC_RESP: - ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 1); + } + + mutex_unlock(&ifmgd->mtx); + + switch (rma) { + case RX_MGMT_NONE: + /* no action */ break; - case IEEE80211_STYPE_DEAUTH: - ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len); + case RX_MGMT_CFG80211_AUTH: + cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, skb->len); break; - case IEEE80211_STYPE_DISASSOC: - ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); + case RX_MGMT_CFG80211_ASSOC: + cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, skb->len); break; + default: + WARN(1, "unexpected: %d", rma); } + out: kfree_skb(skb); } @@ -2146,125 +1917,9 @@ static void ieee80211_sta_timer(unsigned long data) return; } - set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request); queue_work(local->hw.workqueue, &ifmgd->work); } -static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - - /* Reset own TSF to allow time synchronization work. */ - drv_reset_tsf(local); - - ifmgd->wmm_last_param_set = -1; /* allow any WMM update */ - - - if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN) - ifmgd->auth_alg = WLAN_AUTH_OPEN; - else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY) - ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY; - else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP) - ifmgd->auth_alg = WLAN_AUTH_LEAP; - else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_FT) - ifmgd->auth_alg = WLAN_AUTH_FT; - else - ifmgd->auth_alg = WLAN_AUTH_OPEN; - ifmgd->auth_transaction = -1; - ifmgd->flags &= ~IEEE80211_STA_ASSOCIATED; - ifmgd->assoc_scan_tries = 0; - ifmgd->direct_probe_tries = 0; - ifmgd->auth_tries = 0; - ifmgd->assoc_tries = 0; - netif_tx_stop_all_queues(sdata->dev); - netif_carrier_off(sdata->dev); -} - -static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - struct ieee80211_bss *bss; - u8 *bssid = ifmgd->bssid, *ssid = ifmgd->ssid; - u8 ssid_len = ifmgd->ssid_len; - u16 capa_mask = WLAN_CAPABILITY_ESS; - u16 capa_val = WLAN_CAPABILITY_ESS; - struct ieee80211_channel *chan = local->oper_channel; - - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) && - ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL)) { - capa_mask |= WLAN_CAPABILITY_PRIVACY; - if (sdata->default_key) - capa_val |= WLAN_CAPABILITY_PRIVACY; - } - - if (ifmgd->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) - chan = NULL; - - if (ifmgd->flags & IEEE80211_STA_AUTO_BSSID_SEL) - bssid = NULL; - - if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL) { - ssid = NULL; - ssid_len = 0; - } - - bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, - bssid, ssid, ssid_len, - capa_mask, capa_val); - - if (bss) { - local->oper_channel = bss->cbss.channel; - local->oper_channel_type = NL80211_CHAN_NO_HT; - ieee80211_hw_config(local, 0); - - if (!(ifmgd->flags & IEEE80211_STA_SSID_SET)) - ieee80211_sta_set_ssid(sdata, bss->ssid, - bss->ssid_len); - ieee80211_sta_set_bssid(sdata, bss->cbss.bssid); - ieee80211_sta_def_wmm_params(sdata, bss->supp_rates_len, - bss->supp_rates); - if (sdata->u.mgd.mfp == IEEE80211_MFP_REQUIRED) - sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED; - else - sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED; - - /* Send out direct probe if no probe resp was received or - * the one we have is outdated - */ - if (!bss->last_probe_resp || - time_after(jiffies, bss->last_probe_resp - + IEEE80211_SCAN_RESULT_EXPIRE)) - ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE; - else - ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE; - - ieee80211_rx_bss_put(local, bss); - ieee80211_sta_reset_auth(sdata); - return 0; - } else { - if (ifmgd->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) { - - ifmgd->assoc_scan_tries++; - - ieee80211_request_internal_scan(sdata, ifmgd->ssid, - ssid_len); - - ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE; - set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request); - } else { - ifmgd->assoc_scan_tries = 0; - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - } - } - return -1; -} - - static void ieee80211_sta_work(struct work_struct *work) { struct ieee80211_sub_if_data *sdata = @@ -2272,6 +1927,10 @@ static void ieee80211_sta_work(struct work_struct *work) struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd; struct sk_buff *skb; + struct ieee80211_mgd_work *wk, *tmp; + LIST_HEAD(free_work); + enum rx_mgmt_action rma; + bool anybusy = false; if (!netif_running(sdata->dev)) return; @@ -2294,54 +1953,91 @@ static void ieee80211_sta_work(struct work_struct *work) ifmgd = &sdata->u.mgd; + /* first process frames to avoid timing out while a frame is pending */ while ((skb = skb_dequeue(&ifmgd->skb_queue))) ieee80211_sta_rx_queued_mgmt(sdata, skb); - if (ifmgd->state != IEEE80211_STA_MLME_DIRECT_PROBE && - ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE && - ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE && - test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request)) { - queue_delayed_work(local->hw.workqueue, &local->scan_work, - round_jiffies_relative(0)); - return; + /* then process the rest of the work */ + mutex_lock(&ifmgd->mtx); + + list_for_each_entry(wk, &ifmgd->work_list, list) { + if (wk->state != IEEE80211_MGD_STATE_IDLE) { + anybusy = true; + break; + } } - if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request)) { - if (ieee80211_sta_config_auth(sdata)) - return; - clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request); - } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request)) + ieee80211_recalc_idle(local); + + if (!anybusy) { + mutex_unlock(&ifmgd->mtx); + + if (test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request)) + queue_delayed_work(local->hw.workqueue, + &local->scan_work, + round_jiffies_relative(0)); return; + } - ieee80211_recalc_idle(local); + list_for_each_entry_safe(wk, tmp, &ifmgd->work_list, list) { + if (time_before(jiffies, wk->timeout)) + continue; - switch (ifmgd->state) { - case IEEE80211_STA_MLME_DISABLED: - break; - case IEEE80211_STA_MLME_DIRECT_PROBE: - ieee80211_direct_probe(sdata); - break; - case IEEE80211_STA_MLME_AUTHENTICATE: - ieee80211_authenticate(sdata); - break; - case IEEE80211_STA_MLME_ASSOCIATE: - ieee80211_associate(sdata); - break; - case IEEE80211_STA_MLME_ASSOCIATED: - ieee80211_associated(sdata); - break; - default: - WARN_ON(1); - break; + switch (wk->state) { + default: + WARN_ON(1); + /* fall through */ + case IEEE80211_MGD_STATE_IDLE: + /* nothing */ + rma = RX_MGMT_NONE; + break; + case IEEE80211_MGD_STATE_PROBE: + rma = ieee80211_direct_probe(sdata, wk); + break; + case IEEE80211_MGD_STATE_AUTH: + rma = ieee80211_authenticate(sdata, wk); + break; + case IEEE80211_MGD_STATE_ASSOC: + rma = ieee80211_associate(sdata, wk); + break; + } + + switch (rma) { + case RX_MGMT_NONE: + /* no action required */ + break; + case RX_MGMT_CFG80211_AUTH_TO: + case RX_MGMT_CFG80211_ASSOC_TO: + list_del(&wk->list); + list_add(&wk->list, &free_work); + wk->tries = rma; /* small abuse but only local */ + break; + default: + WARN(1, "unexpected: %d", rma); + } } - if (ieee80211_privacy_mismatch(sdata)) { - printk(KERN_DEBUG "%s: privacy configuration mismatch and " - "mixed-cell disabled - disassociate\n", sdata->dev->name); + mutex_unlock(&ifmgd->mtx); - ieee80211_set_disassoc(sdata, false, true, - WLAN_REASON_UNSPECIFIED); + list_for_each_entry_safe(wk, tmp, &free_work, list) { + switch (wk->tries) { + case RX_MGMT_CFG80211_AUTH_TO: + cfg80211_send_auth_timeout(sdata->dev, + wk->bss->cbss.bssid); + break; + case RX_MGMT_CFG80211_ASSOC_TO: + cfg80211_send_assoc_timeout(sdata->dev, + wk->bss->cbss.bssid); + break; + default: + WARN(1, "unexpected: %d", wk->tries); + } + + list_del(&wk->list); + kfree(wk); } + + ieee80211_recalc_idle(local); } static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) @@ -2353,7 +2049,6 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) */ sdata->u.mgd.last_beacon = jiffies; - queue_work(sdata->local->hw.workqueue, &sdata->u.mgd.work); } @@ -2395,7 +2090,6 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd; - u32 hw_flags; ifmgd = &sdata->u.mgd; INIT_WORK(&ifmgd->work, ieee80211_sta_work); @@ -2407,198 +2101,243 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) (unsigned long) sdata); skb_queue_head_init(&ifmgd->skb_queue); + INIT_LIST_HEAD(&ifmgd->work_list); + ifmgd->capab = WLAN_CAPABILITY_ESS; - ifmgd->auth_algs = IEEE80211_AUTH_ALG_OPEN | - IEEE80211_AUTH_ALG_SHARED_KEY; - ifmgd->flags |= IEEE80211_STA_CREATE_IBSS | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL; + ifmgd->flags = 0; if (sdata->local->hw.queues >= 4) ifmgd->flags |= IEEE80211_STA_WMM_ENABLED; - hw_flags = sdata->local->hw.flags; - - if (hw_flags & IEEE80211_HW_SUPPORTS_PS) { - ifmgd->powersave = CONFIG_MAC80211_DEFAULT_PS_VALUE; - sdata->local->hw.conf.dynamic_ps_timeout = 500; - } + mutex_init(&ifmgd->mtx); } -/* configuration hooks */ -void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata) +/* scan finished notification */ +void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) { - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - - if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) - return; - - if ((ifmgd->flags & (IEEE80211_STA_BSSID_SET | - IEEE80211_STA_AUTO_BSSID_SEL)) && - (ifmgd->flags & (IEEE80211_STA_SSID_SET | - IEEE80211_STA_AUTO_SSID_SEL))) { - - if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) - ieee80211_set_disassoc(sdata, true, true, - WLAN_REASON_DEAUTH_LEAVING); - - if (ifmgd->ssid_len == 0) { - /* - * Only allow association to be started if a valid SSID - * is configured. - */ - return; - } + struct ieee80211_sub_if_data *sdata = local->scan_sdata; - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) || - ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE) - set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request); - else if (ifmgd->flags & IEEE80211_STA_EXT_SME) - set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request); - queue_work(local->hw.workqueue, &ifmgd->work); - } + /* Restart STA timers */ + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + ieee80211_restart_sta_timer(sdata); + rcu_read_unlock(); } -int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata) +int ieee80211_max_network_latency(struct notifier_block *nb, + unsigned long data, void *dummy) { - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + s32 latency_usec = (s32) data; + struct ieee80211_local *local = + container_of(nb, struct ieee80211_local, + network_latency_notifier); - if (ifmgd->ssid_len) - ifmgd->flags |= IEEE80211_STA_SSID_SET; - else - ifmgd->flags &= ~IEEE80211_STA_SSID_SET; + mutex_lock(&local->iflist_mtx); + ieee80211_recalc_ps(local, latency_usec); + mutex_unlock(&local->iflist_mtx); return 0; } -int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) +/* config hooks */ +int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, + struct cfg80211_auth_request *req) { - struct ieee80211_if_managed *ifmgd; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + const u8 *ssid; + struct ieee80211_mgd_work *wk; + u16 auth_alg; - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; + switch (req->auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + auth_alg = WLAN_AUTH_OPEN; + break; + case NL80211_AUTHTYPE_SHARED_KEY: + auth_alg = WLAN_AUTH_SHARED_KEY; + break; + case NL80211_AUTHTYPE_FT: + auth_alg = WLAN_AUTH_FT; + break; + case NL80211_AUTHTYPE_NETWORK_EAP: + auth_alg = WLAN_AUTH_LEAP; + break; + default: + return -EOPNOTSUPP; + } - ifmgd = &sdata->u.mgd; + wk = kzalloc(sizeof(*wk) + req->ie_len, GFP_KERNEL); + if (!wk) + return -ENOMEM; - if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) { - if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) - ieee80211_set_disassoc(sdata, true, true, - WLAN_REASON_DEAUTH_LEAVING); + wk->bss = (void *)req->bss; - /* - * Do not use reassociation if SSID is changed (different ESS). - */ - ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid)); - memcpy(ifmgd->ssid, ssid, len); - ifmgd->ssid_len = len; + if (req->ie && req->ie_len) { + memcpy(wk->ie, req->ie, req->ie_len); + wk->ie_len = req->ie_len; } - return ieee80211_sta_commit(sdata); -} + ssid = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID); + memcpy(wk->ssid, ssid + 2, ssid[1]); + wk->ssid_len = ssid[1]; -int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - memcpy(ssid, ifmgd->ssid, ifmgd->ssid_len); - *len = ifmgd->ssid_len; + wk->state = IEEE80211_MGD_STATE_PROBE; + wk->auth_alg = auth_alg; + + /* + * XXX: if still associated need to tell AP that we're going + * to sleep and then change channel etc. + */ + sdata->local->oper_channel = req->bss->channel; + ieee80211_hw_config(sdata->local, 0); + + mutex_lock(&ifmgd->mtx); + list_add(&wk->list, &sdata->u.mgd.work_list); + mutex_unlock(&ifmgd->mtx); + + queue_work(sdata->local->hw.workqueue, &sdata->u.mgd.work); return 0; } -int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid) +int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, + struct cfg80211_assoc_request *req) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_work *wk, *found = NULL; + int i, err; - if (compare_ether_addr(bssid, ifmgd->bssid) != 0 && - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) - ieee80211_set_disassoc(sdata, true, true, - WLAN_REASON_DEAUTH_LEAVING); + mutex_lock(&ifmgd->mtx); - if (is_valid_ether_addr(bssid)) { - memcpy(ifmgd->bssid, bssid, ETH_ALEN); - ifmgd->flags |= IEEE80211_STA_BSSID_SET; - } else { - memset(ifmgd->bssid, 0, ETH_ALEN); - ifmgd->flags &= ~IEEE80211_STA_BSSID_SET; + list_for_each_entry(wk, &ifmgd->work_list, list) { + if (&wk->bss->cbss == req->bss && + wk->state == IEEE80211_MGD_STATE_IDLE) { + found = wk; + break; + } } - return ieee80211_sta_commit(sdata); -} + if (!found) { + err = -ENOLINK; + goto out; + } -int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, - const char *ie, size_t len) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + list_del(&found->list); - if (len == 0 && ifmgd->extra_ie_len == 0) - return -EALREADY; + wk = krealloc(found, sizeof(*wk) + req->ie_len, GFP_KERNEL); + if (!wk) { + list_add(&found->list, &ifmgd->work_list); + err = -ENOMEM; + goto out; + } - if (len == ifmgd->extra_ie_len && ifmgd->extra_ie && - memcmp(ifmgd->extra_ie, ie, len) == 0) - return -EALREADY; + list_add(&wk->list, &ifmgd->work_list); - kfree(ifmgd->extra_ie); - if (len == 0) { - ifmgd->extra_ie = NULL; - ifmgd->extra_ie_len = 0; - return 0; - } - ifmgd->extra_ie = kmalloc(len, GFP_KERNEL); - if (!ifmgd->extra_ie) { - ifmgd->extra_ie_len = 0; - return -ENOMEM; + ifmgd->flags &= ~IEEE80211_STA_DISABLE_11N; + + for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) + if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || + req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || + req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) + ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + + sdata->local->oper_channel = req->bss->channel; + ieee80211_hw_config(sdata->local, 0); + + if (req->ie && req->ie_len) { + memcpy(wk->ie, req->ie, req->ie_len); + wk->ie_len = req->ie_len; + } else + wk->ie_len = 0; + + if (req->prev_bssid) + memcpy(wk->prev_bssid, req->prev_bssid, ETH_ALEN); + + wk->state = IEEE80211_MGD_STATE_ASSOC; + wk->tries = 0; + + if (req->use_mfp) { + ifmgd->mfp = IEEE80211_MFP_REQUIRED; + ifmgd->flags |= IEEE80211_STA_MFP_ENABLED; + } else { + ifmgd->mfp = IEEE80211_MFP_DISABLED; + ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED; } - memcpy(ifmgd->extra_ie, ie, len); - ifmgd->extra_ie_len = len; - return 0; -} -int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason) -{ - printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n", - sdata->dev->name, reason); + if (req->crypto.control_port) + ifmgd->flags |= IEEE80211_STA_CONTROL_PORT; + else + ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT; - ieee80211_set_disassoc(sdata, true, true, reason); - return 0; + queue_work(sdata->local->hw.workqueue, &sdata->u.mgd.work); + + err = 0; + + out: + mutex_unlock(&ifmgd->mtx); + return err; } -int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason) +int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, + struct cfg80211_deauth_request *req, + void *cookie) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_work *wk; + const u8 *bssid = NULL; - printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n", - sdata->dev->name, reason); + printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n", + sdata->dev->name, req->reason_code); + + mutex_lock(&ifmgd->mtx); + + if (ifmgd->associated && &ifmgd->associated->cbss == req->bss) { + bssid = req->bss->bssid; + ieee80211_set_disassoc(sdata, bssid, true); + } else list_for_each_entry(wk, &ifmgd->work_list, list) { + if (&wk->bss->cbss == req->bss) { + bssid = req->bss->bssid; + list_del(&wk->list); + kfree(wk); + break; + } + } - if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED)) + /* cfg80211 should catch this... */ + if (WARN_ON(!bssid)) { + mutex_unlock(&ifmgd->mtx); return -ENOLINK; + } + + mutex_unlock(&ifmgd->mtx); + + ieee80211_send_deauth_disassoc(sdata, bssid, + IEEE80211_STYPE_DEAUTH, req->reason_code, + cookie); - ieee80211_set_disassoc(sdata, false, true, reason); return 0; } -/* scan finished notification */ -void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) +int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, + struct cfg80211_disassoc_request *req, + void *cookie) { - struct ieee80211_sub_if_data *sdata = local->scan_sdata; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - /* Restart STA timers */ - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) - ieee80211_restart_sta_timer(sdata); - rcu_read_unlock(); -} + printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n", + sdata->dev->name, req->reason_code); -int ieee80211_max_network_latency(struct notifier_block *nb, - unsigned long data, void *dummy) -{ - s32 latency_usec = (s32) data; - struct ieee80211_local *local = - container_of(nb, struct ieee80211_local, - network_latency_notifier); + mutex_lock(&ifmgd->mtx); - mutex_lock(&local->iflist_mtx); - ieee80211_recalc_ps(local, latency_usec); - mutex_unlock(&local->iflist_mtx); + /* cfg80211 should catch that */ + if (WARN_ON(&ifmgd->associated->cbss != req->bss)) { + mutex_unlock(&ifmgd->mtx); + return -ENOLINK; + } + + ieee80211_set_disassoc(sdata, req->bss->bssid, false); + + mutex_unlock(&ifmgd->mtx); + ieee80211_send_deauth_disassoc(sdata, req->bss->bssid, + IEEE80211_STYPE_DISASSOC, req->reason_code, + cookie); return 0; } diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index de5bba7f910a..fe6b99059531 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -30,7 +30,6 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, struct tid_ampdu_rx *tid_agg_rx, struct sk_buff *skb, - struct ieee80211_rx_status *status, u16 mpdu_seq_num, int bar_req); /* @@ -59,11 +58,11 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, return skb; } -static inline int should_drop_frame(struct ieee80211_rx_status *status, - struct sk_buff *skb, +static inline int should_drop_frame(struct sk_buff *skb, int present_fcs_len, int radiotap_len) { + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) @@ -111,10 +110,10 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local, static void ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_rx_status *status, struct ieee80211_rate *rate, int rtap_len) { + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_radiotap_header *rthdr; unsigned char *pos; @@ -220,9 +219,9 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, */ static struct sk_buff * ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, - struct ieee80211_rx_status *status, struct ieee80211_rate *rate) { + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(origskb); struct ieee80211_sub_if_data *sdata; int needed_headroom = 0; struct sk_buff *skb, *skb2; @@ -248,8 +247,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, present_fcs_len = FCS_LEN; if (!local->monitors) { - if (should_drop_frame(status, origskb, present_fcs_len, - rtap_len)) { + if (should_drop_frame(origskb, present_fcs_len, rtap_len)) { dev_kfree_skb(origskb); return NULL; } @@ -257,7 +255,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, return remove_monitor_info(local, origskb, rtap_len); } - if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) { + if (should_drop_frame(origskb, present_fcs_len, rtap_len)) { /* only need to expand headroom if necessary */ skb = origskb; origskb = NULL; @@ -289,7 +287,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, /* if necessary, prepend radiotap information */ if (!(status->flag & RX_FLAG_RADIOTAP)) - ieee80211_add_rx_radiotap_header(local, skb, status, rate, + ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom); skb_reset_mac_header(skb); @@ -421,12 +419,11 @@ ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx) struct sk_buff *skb = rx->skb; if (unlikely(local->hw_scanning)) - return ieee80211_scan_rx(rx->sdata, skb, rx->status); + return ieee80211_scan_rx(rx->sdata, skb); if (unlikely(local->sw_scanning)) { /* drop all the other packets during a software scan anyway */ - if (ieee80211_scan_rx(rx->sdata, skb, rx->status) - != RX_QUEUED) + if (ieee80211_scan_rx(rx->sdata, skb) != RX_QUEUED) dev_kfree_skb(skb); return RX_QUEUED; } @@ -1620,7 +1617,7 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx) /* manage reordering buffer according to requested */ /* sequence number */ rcu_read_lock(); - ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL, NULL, + ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL, start_seq_num, 1); rcu_read_unlock(); return RX_DROP_UNUSABLE; @@ -1644,12 +1641,7 @@ static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata, if (compare_ether_addr(mgmt->sa, sdata->u.mgd.bssid) != 0 || compare_ether_addr(mgmt->bssid, sdata->u.mgd.bssid) != 0) { - /* Not from the current AP. */ - return; - } - - if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATE) { - /* Association in progress; ignore SA Query */ + /* Not from the current AP or not associated yet. */ return; } @@ -1686,7 +1678,6 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) struct ieee80211_local *local = rx->local; struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data; - struct ieee80211_bss *bss; int len = rx->skb->len; if (!ieee80211_is_action(mgmt->frame_control)) @@ -1764,17 +1755,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) if (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN)) return RX_DROP_MONITOR; - bss = ieee80211_rx_bss_get(local, sdata->u.mgd.bssid, - local->hw.conf.channel->center_freq, - sdata->u.mgd.ssid, - sdata->u.mgd.ssid_len); - if (!bss) - return RX_DROP_MONITOR; - - ieee80211_sta_process_chanswitch(sdata, - &mgmt->u.action.u.chan_switch.sw_elem, bss); - ieee80211_rx_bss_put(local, bss); - break; + return ieee80211_sta_rx_mgmt(sdata, rx->skb); } break; case WLAN_CATEGORY_SA_QUERY: @@ -1817,13 +1798,13 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) return RX_DROP_MONITOR; if (ieee80211_vif_is_mesh(&sdata->vif)) - return ieee80211_mesh_rx_mgmt(sdata, rx->skb, rx->status); + return ieee80211_mesh_rx_mgmt(sdata, rx->skb); if (sdata->vif.type == NL80211_IFTYPE_ADHOC) - return ieee80211_ibss_rx_mgmt(sdata, rx->skb, rx->status); + return ieee80211_ibss_rx_mgmt(sdata, rx->skb); if (sdata->vif.type == NL80211_IFTYPE_STATION) - return ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status); + return ieee80211_sta_rx_mgmt(sdata, rx->skb); return RX_DROP_MONITOR; } @@ -1866,7 +1847,8 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev, !ieee80211_is_auth(hdr->frame_control)) goto ignore; - mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL); + mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL, + GFP_ATOMIC); ignore: dev_kfree_skb(rx->skb); rx->skb = NULL; @@ -2028,13 +2010,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, case NL80211_IFTYPE_STATION: if (!bssid) return 0; - if (!ieee80211_bssid_match(bssid, sdata->u.mgd.bssid)) { - if (!(rx->flags & IEEE80211_RX_IN_SCAN)) - return 0; - rx->flags &= ~IEEE80211_RX_RA_MATCH; - } else if (!multicast && - compare_ether_addr(sdata->dev->dev_addr, - hdr->addr1) != 0) { + if (!multicast && + compare_ether_addr(sdata->dev->dev_addr, hdr->addr1) != 0) { if (!(sdata->dev->flags & IFF_PROMISC)) return 0; rx->flags &= ~IEEE80211_RX_RA_MATCH; @@ -2114,9 +2091,9 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, */ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status, struct ieee80211_rate *rate) { + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; struct ieee80211_hdr *hdr; @@ -2227,20 +2204,21 @@ static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw, { struct ieee80211_supported_band *sband; struct ieee80211_rate *rate; - struct ieee80211_rx_status status; + struct sk_buff *skb = tid_agg_rx->reorder_buf[index]; + struct ieee80211_rx_status *status; - if (!tid_agg_rx->reorder_buf[index]) + if (!skb) goto no_frame; + status = IEEE80211_SKB_RXCB(skb); + /* release the reordered frames to stack */ - memcpy(&status, tid_agg_rx->reorder_buf[index]->cb, sizeof(status)); - sband = hw->wiphy->bands[status.band]; - if (status.flag & RX_FLAG_HT) + sband = hw->wiphy->bands[status->band]; + if (status->flag & RX_FLAG_HT) rate = sband->bitrates; /* TODO: HT rates */ else - rate = &sband->bitrates[status.rate_idx]; - __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index], - &status, rate); + rate = &sband->bitrates[status->rate_idx]; + __ieee80211_rx_handle_packet(hw, skb, rate); tid_agg_rx->stored_mpdu_num--; tid_agg_rx->reorder_buf[index] = NULL; @@ -2265,7 +2243,6 @@ no_frame: static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, struct tid_ampdu_rx *tid_agg_rx, struct sk_buff *skb, - struct ieee80211_rx_status *rxstatus, u16 mpdu_seq_num, int bar_req) { @@ -2324,8 +2301,6 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, /* put the frame in the reordering buffer */ tid_agg_rx->reorder_buf[index] = skb; tid_agg_rx->reorder_time[index] = jiffies; - memcpy(tid_agg_rx->reorder_buf[index]->cb, rxstatus, - sizeof(*rxstatus)); tid_agg_rx->stored_mpdu_num++; /* release the buffer until next missing frame */ index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) @@ -2374,8 +2349,7 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, } static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_rx_status *status) + struct sk_buff *skb) { struct ieee80211_hw *hw = &local->hw; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; @@ -2424,7 +2398,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local, /* according to mpdu sequence number deal with reordering buffer */ mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4; - ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, status, + ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, mpdu_seq_num, 0); end_reorder: return ret; @@ -2434,12 +2408,12 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local, * This is the receive path handler. It is called by a low level driver when an * 802.11 MPDU is received from the hardware. */ -void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status) +void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_rate *rate = NULL; struct ieee80211_supported_band *sband; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); if (status->band < 0 || status->band >= IEEE80211_NUM_BANDS) { @@ -2482,7 +2456,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, * if it was previously present. * Also, frames with less than 16 bytes are dropped. */ - skb = ieee80211_rx_monitor(local, skb, status, rate); + skb = ieee80211_rx_monitor(local, skb, rate); if (!skb) { rcu_read_unlock(); return; @@ -2500,8 +2474,8 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, * frames from other than operational channel), but that should not * happen in normal networks. */ - if (!ieee80211_rx_reorder_ampdu(local, skb, status)) - __ieee80211_rx_handle_packet(hw, skb, status, rate); + if (!ieee80211_rx_reorder_ampdu(local, skb)) + __ieee80211_rx_handle_packet(hw, skb, rate); rcu_read_unlock(); } @@ -2509,16 +2483,13 @@ EXPORT_SYMBOL(__ieee80211_rx); /* This is a version of the rx handler that can be called from hard irq * context. Post the skb on the queue and schedule the tasklet */ -void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status) +void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb) { struct ieee80211_local *local = hw_to_local(hw); BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb)); skb->dev = local->mdev; - /* copy status into skb->cb for use by tasklet */ - memcpy(skb->cb, status, sizeof(*status)); skb->pkt_type = IEEE80211_RX_MSG; skb_queue_tail(&local->skb_queue, skb); tasklet_schedule(&local->tasklet); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 2a8d09ad17ff..5f4f7869d050 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -26,7 +26,7 @@ #define IEEE80211_PROBE_DELAY (HZ / 33) #define IEEE80211_CHANNEL_TIME (HZ / 33) -#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5) +#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 8) struct ieee80211_bss * ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, @@ -121,23 +121,10 @@ ieee80211_bss_info_update(struct ieee80211_local *local, return bss; } -void ieee80211_rx_bss_remove(struct ieee80211_sub_if_data *sdata, u8 *bssid, - int freq, u8 *ssid, u8 ssid_len) -{ - struct ieee80211_bss *bss; - struct ieee80211_local *local = sdata->local; - - bss = ieee80211_rx_bss_get(local, bssid, freq, ssid, ssid_len); - if (bss) { - cfg80211_unlink_bss(local->hw.wiphy, (void *)bss); - ieee80211_rx_bss_put(local, bss); - } -} - ieee80211_rx_result -ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) +ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { + struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); struct ieee80211_mgmt *mgmt; struct ieee80211_bss *bss; u8 *elements; @@ -327,7 +314,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) /* Tell AP we're back */ if (sdata->vif.type == NL80211_IFTYPE_STATION) { - if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) { + if (sdata->u.mgd.associated) { ieee80211_scan_ps_disable(sdata); netif_tx_wake_all_queues(sdata->dev); } @@ -383,7 +370,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) sdata, BSS_CHANGED_BEACON_ENABLED); if (sdata->vif.type == NL80211_IFTYPE_STATION) { - if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) { + if (sdata->u.mgd.associated) { netif_tx_stop_all_queues(sdata->dev); ieee80211_scan_ps_enable(sdata); } @@ -443,10 +430,8 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, if (req != &local->int_scan_req && sdata->vif.type == NL80211_IFTYPE_STATION && - (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE || - ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE || - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE)) { - /* actually wait for the assoc to finish/time out */ + !list_empty(&ifmgd->work_list)) { + /* actually wait for the work it's doing to finish/time out */ set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request); return 0; } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 49a1a1f76511..4ecf10a9bd00 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -308,6 +308,23 @@ struct sta_info { struct dentry *inactive_ms; struct dentry *last_seq_ctrl; struct dentry *agg_status; + struct dentry *aid; + struct dentry *dev; + struct dentry *rx_packets; + struct dentry *tx_packets; + struct dentry *rx_bytes; + struct dentry *tx_bytes; + struct dentry *rx_duplicates; + struct dentry *rx_fragments; + struct dentry *rx_dropped; + struct dentry *tx_fragments; + struct dentry *tx_filtered; + struct dentry *tx_retry_failed; + struct dentry *tx_retry_count; + struct dentry *last_signal; + struct dentry *last_qual; + struct dentry *last_noise; + struct dentry *wep_weak_iv_count; bool add_has_run; } debugfs; #endif diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index d238a8939a09..2ffb35d3f566 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1627,7 +1627,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, u32 sta_flags = 0; if (unlikely(skb->len < ETH_HLEN)) { - ret = 0; + ret = NETDEV_TX_OK; goto fail; } @@ -1664,7 +1664,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, if (!sdata->u.mesh.mshcfg.dot11MeshTTL) { /* Do not send frames with mesh_ttl == 0 */ sdata->u.mesh.mshstats.dropped_frames_ttl++; - ret = 0; + ret = NETDEV_TX_OK; goto fail; } memset(&mesh_hdr, 0, sizeof(mesh_hdr)); @@ -1724,7 +1724,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, hdrlen = 24; break; default: - ret = 0; + ret = NETDEV_TX_OK; goto fail; } @@ -1766,7 +1766,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, I802_DEBUG_INC(local->tx_handlers_drop_unauth_port); - ret = 0; + ret = NETDEV_TX_OK; goto fail; } @@ -1858,10 +1858,10 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, dev->trans_start = jiffies; dev_queue_xmit(skb); - return 0; + return NETDEV_TX_OK; fail: - if (!ret) + if (ret == NETDEV_TX_OK) dev_kfree_skb(skb); return ret; diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index ef73105b3061..4fafb2d27c84 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -67,10 +67,10 @@ static inline bool ieee80211_wep_weak_iv(u32 iv, int keylen) static void ieee80211_wep_get_iv(struct ieee80211_local *local, - struct ieee80211_key *key, u8 *iv) + int keylen, int keyidx, u8 *iv) { local->wep_iv++; - if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen)) + if (ieee80211_wep_weak_iv(local->wep_iv, keylen)) local->wep_iv += 0x0100; if (!iv) @@ -79,13 +79,13 @@ static void ieee80211_wep_get_iv(struct ieee80211_local *local, *iv++ = (local->wep_iv >> 16) & 0xff; *iv++ = (local->wep_iv >> 8) & 0xff; *iv++ = local->wep_iv & 0xff; - *iv++ = key->conf.keyidx << 6; + *iv++ = keyidx << 6; } static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key) + int keylen, int keyidx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; unsigned int hdrlen; @@ -100,7 +100,7 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local, hdrlen = ieee80211_hdrlen(hdr->frame_control); newhdr = skb_push(skb, WEP_IV_LEN); memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen); - ieee80211_wep_get_iv(local, key, newhdr + hdrlen); + ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen); return newhdr + hdrlen; } @@ -144,26 +144,17 @@ void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, * * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data)) */ -int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key) +static int ieee80211_wep_encrypt(struct ieee80211_local *local, + struct sk_buff *skb, + const u8 *key, int keylen, int keyidx) { - u32 klen; - u8 *rc4key, *iv; + u8 *iv; size_t len; + u8 rc4key[3 + WLAN_KEY_LEN_WEP104]; - if (!key || key->conf.alg != ALG_WEP) - return -1; - - klen = 3 + key->conf.keylen; - rc4key = kmalloc(klen, GFP_ATOMIC); - if (!rc4key) - return -1; - - iv = ieee80211_wep_add_iv(local, skb, key); - if (!iv) { - kfree(rc4key); + iv = ieee80211_wep_add_iv(local, skb, keylen, keyidx); + if (!iv) return -1; - } len = skb->len - (iv + WEP_IV_LEN - skb->data); @@ -171,16 +162,14 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb, memcpy(rc4key, iv, 3); /* Copy rest of the WEP key (the secret part) */ - memcpy(rc4key + 3, key->conf.key, key->conf.keylen); + memcpy(rc4key + 3, key, keylen); /* Add room for ICV */ skb_put(skb, WEP_ICV_LEN); - ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen, + ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3, iv + WEP_IV_LEN, len); - kfree(rc4key); - return 0; } @@ -216,8 +205,9 @@ int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, * failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload * is moved to the beginning of the skb and skb length will be reduced. */ -int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key) +static int ieee80211_wep_decrypt(struct ieee80211_local *local, + struct sk_buff *skb, + struct ieee80211_key *key) { u32 klen; u8 *rc4key; @@ -314,12 +304,16 @@ static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) { - if (ieee80211_wep_encrypt(tx->local, skb, tx->key)) + if (ieee80211_wep_encrypt(tx->local, skb, tx->key->conf.key, + tx->key->conf.keylen, + tx->key->conf.keyidx)) return -1; } else { info->control.hw_key = &tx->key->conf; if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) { - if (!ieee80211_wep_add_iv(tx->local, skb, tx->key)) + if (!ieee80211_wep_add_iv(tx->local, skb, + tx->key->conf.keylen, + tx->key->conf.keyidx)) return -1; } } diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h index d3f0db48314e..85219ded8703 100644 --- a/net/mac80211/wep.h +++ b/net/mac80211/wep.h @@ -22,10 +22,6 @@ void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, size_t klen, u8 *data, size_t data_len); int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, size_t klen, u8 *data, size_t data_len); -int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key); -int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key); bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key); ieee80211_rx_result diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 1da81f456744..5acb8140ee58 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -27,29 +27,6 @@ #include "aes_ccm.h" -static int ieee80211_ioctl_siwgenie(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length); - if (ret && ret != -EALREADY) - return ret; - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; - sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME; - sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT; - if (ret != -EALREADY) - ieee80211_sta_req_auth(sdata); - return 0; - } - - return -EOPNOTSUPP; -} - static int ieee80211_ioctl_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra) @@ -61,16 +38,13 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev, if (sdata->vif.type == NL80211_IFTYPE_ADHOC) return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra); else if (sdata->vif.type == NL80211_IFTYPE_STATION) - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL; + return cfg80211_mgd_wext_siwfreq(dev, info, freq, extra); /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */ if (freq->e == 0) { - if (freq->m < 0) { - if (sdata->vif.type == NL80211_IFTYPE_STATION) - sdata->u.mgd.flags |= - IEEE80211_STA_AUTO_CHANNEL_SEL; - return 0; - } else + if (freq->m < 0) + return -EINVAL; + else chan = ieee80211_get_channel(local->hw.wiphy, ieee80211_channel_to_frequency(freq->m)); } else { @@ -95,9 +69,6 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev, if (local->oper_channel == chan) return 0; - if (sdata->vif.type == NL80211_IFTYPE_STATION) - ieee80211_sta_req_auth(sdata); - local->oper_channel = chan; local->oper_channel_type = NL80211_CHAN_NO_HT; ieee80211_hw_config(local, 0); @@ -115,6 +86,8 @@ static int ieee80211_ioctl_giwfreq(struct net_device *dev, if (sdata->vif.type == NL80211_IFTYPE_ADHOC) return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); + else if (sdata->vif.type == NL80211_IFTYPE_STATION) + return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); freq->m = local->oper_channel->center_freq; freq->e = 6; @@ -128,31 +101,11 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev, struct iw_point *data, char *ssid) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - size_t len = data->length; - int ret; if (sdata->vif.type == NL80211_IFTYPE_ADHOC) return cfg80211_ibss_wext_siwessid(dev, info, data, ssid); - - /* iwconfig uses nul termination in SSID.. */ - if (len > 0 && ssid[len - 1] == '\0') - len--; - - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - if (data->flags) - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; - else - sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL; - - ret = ieee80211_sta_set_ssid(sdata, ssid, len); - if (ret) - return ret; - - sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME; - sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT; - ieee80211_sta_req_auth(sdata); - return 0; - } + else if (sdata->vif.type == NL80211_IFTYPE_STATION) + return cfg80211_mgd_wext_siwessid(dev, info, data, ssid); return -EOPNOTSUPP; } @@ -162,23 +115,14 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *ssid) { - size_t len; struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == NL80211_IFTYPE_ADHOC) return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); - - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - int res = ieee80211_sta_get_ssid(sdata, ssid, &len); - if (res == 0) { - data->length = len; - data->flags = 1; - } else - data->flags = 0; - return res; - } + else if (sdata->vif.type == NL80211_IFTYPE_STATION) + return cfg80211_mgd_wext_giwessid(dev, info, data, ssid); return -EOPNOTSUPP; } @@ -193,40 +137,11 @@ static int ieee80211_ioctl_siwap(struct net_device *dev, if (sdata->vif.type == NL80211_IFTYPE_ADHOC) return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - int ret; - - if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) - sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL; - else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data)) - sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL; - else - sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; - ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data); - if (ret) - return ret; - sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME; - sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT; - ieee80211_sta_req_auth(sdata); - return 0; - } else if (sdata->vif.type == NL80211_IFTYPE_WDS) { - /* - * If it is necessary to update the WDS peer address - * while the interface is running, then we need to do - * more work here, namely if it is running we need to - * add a new and remove the old STA entry, this is - * normally handled by _open() and _stop(). - */ - if (netif_running(dev)) - return -EBUSY; - - memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data, - ETH_ALEN); - - return 0; - } + if (sdata->vif.type == NL80211_IFTYPE_STATION) + return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); + if (sdata->vif.type == NL80211_IFTYPE_WDS) + return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra); return -EOPNOTSUPP; } @@ -240,326 +155,13 @@ static int ieee80211_ioctl_giwap(struct net_device *dev, if (sdata->vif.type == NL80211_IFTYPE_ADHOC) return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) { - ap_addr->sa_family = ARPHRD_ETHER; - memcpy(&ap_addr->sa_data, sdata->u.mgd.bssid, ETH_ALEN); - } else - memset(&ap_addr->sa_data, 0, ETH_ALEN); - return 0; - } else if (sdata->vif.type == NL80211_IFTYPE_WDS) { - ap_addr->sa_family = ARPHRD_ETHER; - memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN); - return 0; - } - - return -EOPNOTSUPP; -} - - -static int ieee80211_ioctl_siwrate(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rate, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int i, err = -EINVAL; - u32 target_rate = rate->value / 100000; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates - * target_rate = X, rate->fixed = 1 means only rate X - * target_rate = X, rate->fixed = 0 means all rates <= X */ - sdata->max_ratectrl_rateidx = -1; - sdata->force_unicast_rateidx = -1; - if (rate->value < 0) - return 0; - - for (i=0; i< sband->n_bitrates; i++) { - struct ieee80211_rate *brate = &sband->bitrates[i]; - int this_rate = brate->bitrate; - - if (target_rate == this_rate) { - sdata->max_ratectrl_rateidx = i; - if (rate->fixed) - sdata->force_unicast_rateidx = i; - err = 0; - break; - } - } - return err; -} - -static int ieee80211_ioctl_giwrate(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rate, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type != NL80211_IFTYPE_STATION) - return -EOPNOTSUPP; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - rcu_read_lock(); - - sta = sta_info_get(local, sdata->u.mgd.bssid); - - if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) - rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate; - else - rate->value = 0; - - rcu_read_unlock(); - - if (!sta) - return -ENODEV; - - rate->value *= 100000; - - return 0; -} - -static int ieee80211_ioctl_siwpower(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *wrq, - char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_conf *conf = &local->hw.conf; - int timeout = 0; - bool ps; - - if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) - return -EOPNOTSUPP; - - if (sdata->vif.type != NL80211_IFTYPE_STATION) - return -EINVAL; - - if (wrq->disabled) { - ps = false; - timeout = 0; - goto set; - } - - switch (wrq->flags & IW_POWER_MODE) { - case IW_POWER_ON: /* If not specified */ - case IW_POWER_MODE: /* If set all mask */ - case IW_POWER_ALL_R: /* If explicitely state all */ - ps = true; - break; - default: /* Otherwise we ignore */ - return -EINVAL; - } - - if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) - return -EINVAL; - - if (wrq->flags & IW_POWER_TIMEOUT) - timeout = wrq->value / 1000; - - set: - if (ps == sdata->u.mgd.powersave && timeout == conf->dynamic_ps_timeout) - return 0; - - sdata->u.mgd.powersave = ps; - conf->dynamic_ps_timeout = timeout; - - if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); - - ieee80211_recalc_ps(local, -1); - - return 0; -} - -static int ieee80211_ioctl_giwpower(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, - char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - wrqu->power.disabled = !sdata->u.mgd.powersave; - - return 0; -} - -static int ieee80211_ioctl_siwauth(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int ret = 0; - - switch (data->flags & IW_AUTH_INDEX) { - case IW_AUTH_WPA_VERSION: - case IW_AUTH_CIPHER_GROUP: - case IW_AUTH_WPA_ENABLED: - case IW_AUTH_RX_UNENCRYPTED_EAPOL: - case IW_AUTH_KEY_MGMT: - case IW_AUTH_CIPHER_GROUP_MGMT: - break; - case IW_AUTH_CIPHER_PAIRWISE: - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - if (data->value & (IW_AUTH_CIPHER_WEP40 | - IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_TKIP)) - sdata->u.mgd.flags |= - IEEE80211_STA_TKIP_WEP_USED; - else - sdata->u.mgd.flags &= - ~IEEE80211_STA_TKIP_WEP_USED; - } - break; - case IW_AUTH_DROP_UNENCRYPTED: - sdata->drop_unencrypted = !!data->value; - break; - case IW_AUTH_PRIVACY_INVOKED: - if (sdata->vif.type != NL80211_IFTYPE_STATION) - ret = -EINVAL; - else { - sdata->u.mgd.flags &= ~IEEE80211_STA_PRIVACY_INVOKED; - /* - * Privacy invoked by wpa_supplicant, store the - * value and allow associating to a protected - * network without having a key up front. - */ - if (data->value) - sdata->u.mgd.flags |= - IEEE80211_STA_PRIVACY_INVOKED; - } - break; - case IW_AUTH_80211_AUTH_ALG: - if (sdata->vif.type == NL80211_IFTYPE_STATION) - sdata->u.mgd.auth_algs = data->value; - else - ret = -EOPNOTSUPP; - break; - case IW_AUTH_MFP: - if (!(sdata->local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) { - ret = -EOPNOTSUPP; - break; - } - if (sdata->vif.type == NL80211_IFTYPE_STATION) { - switch (data->value) { - case IW_AUTH_MFP_DISABLED: - sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED; - break; - case IW_AUTH_MFP_OPTIONAL: - sdata->u.mgd.mfp = IEEE80211_MFP_OPTIONAL; - break; - case IW_AUTH_MFP_REQUIRED: - sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED; - break; - default: - ret = -EINVAL; - } - } else - ret = -EOPNOTSUPP; - break; - default: - ret = -EOPNOTSUPP; - break; - } - return ret; -} - -/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ -static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct iw_statistics *wstats = &local->wstats; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta = NULL; - - rcu_read_lock(); - if (sdata->vif.type == NL80211_IFTYPE_STATION) - sta = sta_info_get(local, sdata->u.mgd.bssid); - - if (!sta) { - wstats->discard.fragment = 0; - wstats->discard.misc = 0; - wstats->qual.qual = 0; - wstats->qual.level = 0; - wstats->qual.noise = 0; - wstats->qual.updated = IW_QUAL_ALL_INVALID; - } else { - wstats->qual.updated = 0; - /* - * mirror what cfg80211 does for iwrange/scan results, - * otherwise userspace gets confused. - */ - if (local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC | - IEEE80211_HW_SIGNAL_DBM)) { - wstats->qual.updated |= IW_QUAL_LEVEL_UPDATED; - wstats->qual.updated |= IW_QUAL_QUAL_UPDATED; - } else { - wstats->qual.updated |= IW_QUAL_LEVEL_INVALID; - wstats->qual.updated |= IW_QUAL_QUAL_INVALID; - } - - if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) { - wstats->qual.level = sta->last_signal; - wstats->qual.qual = sta->last_signal; - } else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) { - int sig = sta->last_signal; - - wstats->qual.updated |= IW_QUAL_DBM; - wstats->qual.level = sig; - if (sig < -110) - sig = -110; - else if (sig > -40) - sig = -40; - wstats->qual.qual = sig + 110; - } - - if (local->hw.flags & IEEE80211_HW_NOISE_DBM) { - /* - * This assumes that if driver reports noise, it also - * reports signal in dBm. - */ - wstats->qual.noise = sta->last_noise; - wstats->qual.updated |= IW_QUAL_NOISE_UPDATED; - } else { - wstats->qual.updated |= IW_QUAL_NOISE_INVALID; - } - } + return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); - rcu_read_unlock(); - - return wstats; -} + if (sdata->vif.type == NL80211_IFTYPE_WDS) + return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra); -static int ieee80211_ioctl_giwauth(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int ret = 0; - - switch (data->flags & IW_AUTH_INDEX) { - case IW_AUTH_80211_AUTH_ALG: - if (sdata->vif.type == NL80211_IFTYPE_STATION) - data->value = sdata->u.mgd.auth_algs; - else - ret = -EOPNOTSUPP; - break; - default: - ret = -EOPNOTSUPP; - break; - } - return ret; + return -EOPNOTSUPP; } @@ -599,8 +201,8 @@ static const iw_handler ieee80211_handler[] = (iw_handler) NULL, /* SIOCGIWNICKN */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) NULL, /* -- hole -- */ - (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */ - (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */ + (iw_handler) cfg80211_wext_siwrate, /* SIOCSIWRATE */ + (iw_handler) cfg80211_wext_giwrate, /* SIOCGIWRATE */ (iw_handler) cfg80211_wext_siwrts, /* SIOCSIWRTS */ (iw_handler) cfg80211_wext_giwrts, /* SIOCGIWRTS */ (iw_handler) cfg80211_wext_siwfrag, /* SIOCSIWFRAG */ @@ -611,14 +213,14 @@ static const iw_handler ieee80211_handler[] = (iw_handler) cfg80211_wext_giwretry, /* SIOCGIWRETRY */ (iw_handler) cfg80211_wext_siwencode, /* SIOCSIWENCODE */ (iw_handler) cfg80211_wext_giwencode, /* SIOCGIWENCODE */ - (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */ - (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */ + (iw_handler) cfg80211_wext_siwpower, /* SIOCSIWPOWER */ + (iw_handler) cfg80211_wext_giwpower, /* SIOCGIWPOWER */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) NULL, /* -- hole -- */ - (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */ + (iw_handler) cfg80211_wext_siwgenie, /* SIOCSIWGENIE */ (iw_handler) NULL, /* SIOCGIWGENIE */ - (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */ - (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */ + (iw_handler) cfg80211_wext_siwauth, /* SIOCSIWAUTH */ + (iw_handler) cfg80211_wext_giwauth, /* SIOCGIWAUTH */ (iw_handler) cfg80211_wext_siwencodeext, /* SIOCSIWENCODEEXT */ (iw_handler) NULL, /* SIOCGIWENCODEEXT */ (iw_handler) NULL, /* SIOCSIWPMKSA */ @@ -629,5 +231,5 @@ const struct iw_handler_def ieee80211_iw_handler_def = { .num_standard = ARRAY_SIZE(ieee80211_handler), .standard = (iw_handler *) ieee80211_handler, - .get_wireless_stats = ieee80211_get_wireless_stats, + .get_wireless_stats = cfg80211_wireless_stats, }; diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index dcfae8884b86..70778694877b 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -122,7 +122,8 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; mac80211_ev_michael_mic_failure(rx->sdata, rx->key->conf.keyidx, - (void *) skb->data, NULL); + (void *) skb->data, NULL, + GFP_ATOMIC); return RX_DROP_UNUSABLE; } |