diff options
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 39 | ||||
| -rw-r--r-- | net/mac80211/iface.c | 17 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 624 |
3 files changed, 346 insertions, 334 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index cac0b133454..442a43a3400 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -882,54 +882,53 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) } -/* ieee80211.c */ int ieee80211_hw_config(struct ieee80211_local *local); int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, struct ieee80211_ht_info *req_ht_cap, struct ieee80211_ht_bss_info *req_bss_cap); +void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, + u32 changed); -/* ieee80211_ioctl.c */ +/* wireless extensions */ extern const struct iw_handler_def ieee80211_iw_handler_def; int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq); -/* ieee80211_sta.c */ -void ieee80211_sta_timer(unsigned long data); -void ieee80211_sta_work(struct work_struct *work); +/* STA/IBSS code */ +void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); void ieee80211_sta_scan_work(struct work_struct *work); void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, struct ieee80211_rx_status *rx_status); 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); -int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len); void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta); -int ieee80211_sta_scan_results(struct ieee80211_local *local, - struct iw_request_info *info, - char *buf, size_t len); -ieee80211_rx_result ieee80211_sta_rx_scan( - struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); -void ieee80211_rx_bss_list_init(struct ieee80211_local *local); -void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local); -int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len); struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, u8 *bssid, u8 *addr, u64 supp_rates); int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason); int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason); -void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, - u32 changed); u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); u64 ieee80211_sta_get_rates(struct ieee80211_local *local, struct ieee802_11_elems *elems, enum ieee80211_band band); void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, u8 *ssid, size_t ssid_len); -void ieee802_11_parse_elems(u8 *start, size_t len, - struct ieee802_11_elems *elems); + +/* scan/BSS handling */ +int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len); +int ieee80211_sta_scan_results(struct ieee80211_local *local, + struct iw_request_info *info, + char *buf, size_t len); +ieee80211_rx_result ieee80211_sta_rx_scan( + struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, + struct ieee80211_rx_status *rx_status); +void ieee80211_rx_bss_list_init(struct ieee80211_local *local); +void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local); +int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len); + void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); int ieee80211_sta_start_scan(struct ieee80211_sub_if_data *scan_sdata, u8 *ssid, size_t ssid_len); @@ -1007,6 +1006,8 @@ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int ke 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); +void ieee802_11_parse_elems(u8 *start, size_t len, + struct ieee802_11_elems *elems); #ifdef CONFIG_MAC80211_NOINLINE #define debug_noinline noinline diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index ddbaa417e2e..61b19340488 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -83,8 +83,6 @@ static void ieee80211_teardown_sdata(struct net_device *dev) static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, enum ieee80211_if_types type) { - struct ieee80211_if_sta *ifsta; - /* clear type-dependent union */ memset(&sdata->u, 0, sizeof(sdata->u)); @@ -101,20 +99,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, break; case IEEE80211_IF_TYPE_STA: case IEEE80211_IF_TYPE_IBSS: - ifsta = &sdata->u.sta; - INIT_WORK(&ifsta->work, ieee80211_sta_work); - setup_timer(&ifsta->timer, ieee80211_sta_timer, - (unsigned long) sdata); - skb_queue_head_init(&ifsta->skb_queue); - - ifsta->capab = WLAN_CAPABILITY_ESS; - ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN | - IEEE80211_AUTH_ALG_SHARED_KEY; - ifsta->flags |= IEEE80211_STA_CREATE_IBSS | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL; - if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4) - ifsta->flags |= IEEE80211_STA_WMM_ENABLED; + ieee80211_sta_setup_sdata(sdata); break; case IEEE80211_IF_TYPE_MESH_POINT: if (ieee80211_vif_is_mesh(&sdata->vif)) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 19c7f21e49d..e1483010652 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -93,44 +93,46 @@ static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss, return count; } -/* frame sending functions */ -static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, - int transaction, u8 *extra, size_t extra_len, - int encrypt) +/* also used by mesh code */ +u64 ieee80211_sta_get_rates(struct ieee80211_local *local, + struct ieee802_11_elems *elems, + enum ieee80211_band band) { - struct ieee80211_local *local = sdata->local; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; + struct ieee80211_supported_band *sband; + struct ieee80211_rate *bitrates; + size_t num_rates; + u64 supp_rates; + int i, j; + sband = local->hw.wiphy->bands[band]; - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*mgmt) + 6 + extra_len); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for auth " - "frame\n", sdata->dev->name); - return; + if (!sband) { + WARN_ON(1); + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; } - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); - memset(mgmt, 0, 24 + 6); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_AUTH); - if (encrypt) - mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg); - mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); - ifsta->auth_transaction = transaction + 1; - mgmt->u.auth.status_code = cpu_to_le16(0); - if (extra) - memcpy(skb_put(skb, extra_len), extra, extra_len); - - ieee80211_tx_skb(sdata, skb, encrypt); + bitrates = sband->bitrates; + num_rates = sband->n_bitrates; + supp_rates = 0; + for (i = 0; i < elems->supp_rates_len + + elems->ext_supp_rates_len; i++) { + u8 rate = 0; + int own_rate; + if (i < elems->supp_rates_len) + rate = elems->supp_rates[i]; + else if (elems->ext_supp_rates) + rate = elems->ext_supp_rates + [i - elems->supp_rates_len]; + own_rate = 5 * (rate & 0x7f); + for (j = 0; j < num_rates; j++) + if (bitrates[j].bitrate == own_rate) + supp_rates |= BIT(j); + } + return supp_rates; } +/* frame sending functions */ + +/* also used by scanning code */ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, u8 *ssid, size_t ssid_len) { @@ -191,6 +193,43 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, ieee80211_tx_skb(sdata, skb, 0); } +static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta, + int transaction, u8 *extra, size_t extra_len, + int encrypt) +{ + struct ieee80211_local *local = sdata->local; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + + sizeof(*mgmt) + 6 + extra_len); + if (!skb) { + printk(KERN_DEBUG "%s: failed to allocate buffer for auth " + "frame\n", sdata->dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + + mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); + memset(mgmt, 0, 24 + 6); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_AUTH); + if (encrypt) + mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); + memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); + mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg); + mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); + ifsta->auth_transaction = transaction + 1; + mgmt->u.auth.status_code = cpu_to_le16(0); + if (extra) + memcpy(skb_put(skb, extra_len), extra, extra_len); + + ieee80211_tx_skb(sdata, skb, encrypt); +} + static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { @@ -1414,42 +1453,6 @@ static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, return res; } -u64 ieee80211_sta_get_rates(struct ieee80211_local *local, - struct ieee802_11_elems *elems, - enum ieee80211_band band) -{ - struct ieee80211_supported_band *sband; - struct ieee80211_rate *bitrates; - size_t num_rates; - u64 supp_rates; - int i, j; - sband = local->hw.wiphy->bands[band]; - - if (!sband) { - WARN_ON(1); - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - } - - bitrates = sband->bitrates; - num_rates = sband->n_bitrates; - supp_rates = 0; - for (i = 0; i < elems->supp_rates_len + - elems->ext_supp_rates_len; i++) { - u8 rate = 0; - int own_rate; - if (i < elems->supp_rates_len) - rate = elems->supp_rates[i]; - else if (elems->ext_supp_rates) - rate = elems->ext_supp_rates - [i - elems->supp_rates_len]; - own_rate = 5 * (rate & 0x7f); - for (j = 0; j < num_rates; j++) - if (bitrates[j].bitrate == own_rate) - supp_rates |= BIT(j); - } - return supp_rates; -} - static u64 ieee80211_sta_get_mandatory_rates(struct ieee80211_local *local, enum ieee80211_band band) { @@ -1894,7 +1897,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata, } -void ieee80211_sta_timer(unsigned long data) +static void ieee80211_sta_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; @@ -1937,28 +1940,6 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata, } -void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = sdata->local; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - - if ((ifsta->flags & (IEEE80211_STA_BSSID_SET | - IEEE80211_STA_AUTO_BSSID_SEL)) && - (ifsta->flags & (IEEE80211_STA_SSID_SET | - IEEE80211_STA_AUTO_SSID_SEL))) { - - if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) - ieee80211_set_disassoc(sdata, ifsta, true, true, - WLAN_REASON_DEAUTH_LEAVING); - - set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); - queue_work(local->hw.workqueue, &ifsta->work); - } -} - static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta, const char *ssid, int ssid_len) { @@ -2160,159 +2141,6 @@ dont_join: } -int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) -{ - struct ieee80211_if_sta *ifsta; - int res; - - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - - ifsta = &sdata->u.sta; - - if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) { - memset(ifsta->ssid, 0, sizeof(ifsta->ssid)); - memcpy(ifsta->ssid, ssid, len); - ifsta->ssid_len = len; - ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - - res = 0; - /* - * Hack! MLME code needs to be cleaned up to have different - * entry points for configuration and internal selection change - */ - if (netif_running(sdata->dev)) - res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); - if (res) { - printk(KERN_DEBUG "%s: Failed to config new SSID to " - "the low-level driver\n", sdata->dev->name); - return res; - } - } - - if (len) - ifsta->flags |= IEEE80211_STA_SSID_SET; - else - ifsta->flags &= ~IEEE80211_STA_SSID_SET; - - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && - !(ifsta->flags & IEEE80211_STA_BSSID_SET)) { - ifsta->ibss_join_req = jiffies; - ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH; - return ieee80211_sta_find_ibss(sdata, ifsta); - } - - return 0; -} - - -int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len) -{ - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - memcpy(ssid, ifsta->ssid, ifsta->ssid_len); - *len = ifsta->ssid_len; - return 0; -} - - -int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid) -{ - struct ieee80211_if_sta *ifsta; - int res; - - ifsta = &sdata->u.sta; - - if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { - memcpy(ifsta->bssid, bssid, ETH_ALEN); - res = 0; - /* - * Hack! See also ieee80211_sta_set_ssid. - */ - if (netif_running(sdata->dev)) - res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID); - if (res) { - printk(KERN_DEBUG "%s: Failed to config new BSSID to " - "the low-level driver\n", sdata->dev->name); - return res; - } - } - - if (is_valid_ether_addr(bssid)) - ifsta->flags |= IEEE80211_STA_BSSID_SET; - else - ifsta->flags &= ~IEEE80211_STA_BSSID_SET; - - return 0; -} - - -int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len) -{ - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - - kfree(ifsta->extra_ie); - if (len == 0) { - ifsta->extra_ie = NULL; - ifsta->extra_ie_len = 0; - return 0; - } - ifsta->extra_ie = kmalloc(len, GFP_KERNEL); - if (!ifsta->extra_ie) { - ifsta->extra_ie_len = 0; - return -ENOMEM; - } - memcpy(ifsta->extra_ie, ie, len); - ifsta->extra_ie_len = len; - return 0; -} - - -struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, u8 *bssid, - u8 *addr, u64 supp_rates) -{ - struct ieee80211_local *local = sdata->local; - struct sta_info *sta; - DECLARE_MAC_BUF(mac); - int band = local->hw.conf.channel->band; - - /* TODO: Could consider removing the least recently used entry and - * allow new one to be added. */ - if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: No room for a new IBSS STA " - "entry %s\n", sdata->dev->name, print_mac(mac, addr)); - } - return NULL; - } - - if (compare_ether_addr(bssid, sdata->u.sta.bssid)) - return NULL; - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n", - wiphy_name(local->hw.wiphy), print_mac(mac, addr), sdata->dev->name); -#endif - - sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); - if (!sta) - return NULL; - - set_sta_flags(sta, WLAN_STA_AUTHORIZED); - - /* make sure mandatory rates are always added */ - sta->supp_rates[band] = supp_rates | - ieee80211_sta_get_mandatory_rates(local, band); - - rate_control_rate_init(sta, local); - - if (sta_info_insert(sta)) - return NULL; - - return sta; -} - - static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_sta *ifsta) { @@ -2392,61 +2220,7 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata, } -int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason) -{ - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - - printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n", - sdata->dev->name, reason); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) - return -EINVAL; - - ieee80211_set_disassoc(sdata, ifsta, true, true, reason); - return 0; -} - - -int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason) -{ - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - - printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n", - sdata->dev->name, reason); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return -EINVAL; - - if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED)) - return -1; - - ieee80211_set_disassoc(sdata, ifsta, false, true, reason); - return 0; -} - -void ieee80211_notify_mac(struct ieee80211_hw *hw, - enum ieee80211_notification_types notif_type) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata; - - switch (notif_type) { - case IEEE80211_NOTIFY_RE_ASSOC: - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - continue; - - ieee80211_sta_req_auth(sdata, &sdata->u.sta); - } - rcu_read_unlock(); - break; - } -} -EXPORT_SYMBOL(ieee80211_notify_mac); - -void ieee80211_sta_work(struct work_struct *work) +static void ieee80211_sta_work(struct work_struct *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, u.sta.work); @@ -2525,6 +2299,236 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) &sdata->u.sta.work); } +/* interface setup */ +void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_sta *ifsta; + + ifsta = &sdata->u.sta; + INIT_WORK(&ifsta->work, ieee80211_sta_work); + setup_timer(&ifsta->timer, ieee80211_sta_timer, + (unsigned long) sdata); + skb_queue_head_init(&ifsta->skb_queue); + + ifsta->capab = WLAN_CAPABILITY_ESS; + ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN | + IEEE80211_AUTH_ALG_SHARED_KEY; + ifsta->flags |= IEEE80211_STA_CREATE_IBSS | + IEEE80211_STA_AUTO_BSSID_SEL | + IEEE80211_STA_AUTO_CHANNEL_SEL; + if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4) + ifsta->flags |= IEEE80211_STA_WMM_ENABLED; +} + +/* + * Add a new IBSS station, will also be called by the RX code when, + * in IBSS mode, receiving a frame from a yet-unknown station, hence + * must be callable in atomic context. + */ +struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u8 *bssid, + u8 *addr, u64 supp_rates) +{ + struct ieee80211_local *local = sdata->local; + struct sta_info *sta; + DECLARE_MAC_BUF(mac); + int band = local->hw.conf.channel->band; + + /* TODO: Could consider removing the least recently used entry and + * allow new one to be added. */ + if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: No room for a new IBSS STA " + "entry %s\n", sdata->dev->name, print_mac(mac, addr)); + } + return NULL; + } + + if (compare_ether_addr(bssid, sdata->u.sta.bssid)) + return NULL; + +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n", + wiphy_name(local->hw.wiphy), print_mac(mac, addr), sdata->dev->name); +#endif + + sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); + if (!sta) + return NULL; + + set_sta_flags(sta, WLAN_STA_AUTHORIZED); + + /* make sure mandatory rates are always added */ + sta->supp_rates[band] = supp_rates | + ieee80211_sta_get_mandatory_rates(local, band); + + rate_control_rate_init(sta, local); + + if (sta_info_insert(sta)) + return NULL; + + return sta; +} + +/* configuration hooks */ +void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_if_sta *ifsta) +{ + struct ieee80211_local *local = sdata->local; + + if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + return; + + if ((ifsta->flags & (IEEE80211_STA_BSSID_SET | + IEEE80211_STA_AUTO_BSSID_SEL)) && + (ifsta->flags & (IEEE80211_STA_SSID_SET | + IEEE80211_STA_AUTO_SSID_SEL))) { + + if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) + ieee80211_set_disassoc(sdata, ifsta, true, true, + WLAN_REASON_DEAUTH_LEAVING); + + set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); + queue_work(local->hw.workqueue, &ifsta->work); + } +} + +int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) +{ + struct ieee80211_if_sta *ifsta; + int res; + + if (len > IEEE80211_MAX_SSID_LEN) + return -EINVAL; + + ifsta = &sdata->u.sta; + + if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) { + memset(ifsta->ssid, 0, sizeof(ifsta->ssid)); + memcpy(ifsta->ssid, ssid, len); + ifsta->ssid_len = len; + ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; + + res = 0; + /* + * Hack! MLME code needs to be cleaned up to have different + * entry points for configuration and internal selection change + */ + if (netif_running(sdata->dev)) + res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); + if (res) { + printk(KERN_DEBUG "%s: Failed to config new SSID to " + "the low-level driver\n", sdata->dev->name); + return res; + } + } + + if (len) + ifsta->flags |= IEEE80211_STA_SSID_SET; + else + ifsta->flags &= ~IEEE80211_STA_SSID_SET; + + if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && + !(ifsta->flags & IEEE80211_STA_BSSID_SET)) { + ifsta->ibss_join_req = jiffies; + ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH; + return ieee80211_sta_find_ibss(sdata, ifsta); + } + + return 0; +} + +int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len) +{ + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + memcpy(ssid, ifsta->ssid, ifsta->ssid_len); + *len = ifsta->ssid_len; + return 0; +} + +int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid) +{ + struct ieee80211_if_sta *ifsta; + int res; + + ifsta = &sdata->u.sta; + + if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { + memcpy(ifsta->bssid, bssid, ETH_ALEN); + res = 0; + /* + * Hack! See also ieee80211_sta_set_ssid. + */ + if (netif_running(sdata->dev)) + res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID); + if (res) { + printk(KERN_DEBUG "%s: Failed to config new BSSID to " + "the low-level driver\n", sdata->dev->name); + return res; + } + } + + if (is_valid_ether_addr(bssid)) + ifsta->flags |= IEEE80211_STA_BSSID_SET; + else + ifsta->flags &= ~IEEE80211_STA_BSSID_SET; + + return 0; +} + +int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len) +{ + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + + kfree(ifsta->extra_ie); + if (len == 0) { + ifsta->extra_ie = NULL; + ifsta->extra_ie_len = 0; + return 0; + } + ifsta->extra_ie = kmalloc(len, GFP_KERNEL); + if (!ifsta->extra_ie) { + ifsta->extra_ie_len = 0; + return -ENOMEM; + } + memcpy(ifsta->extra_ie, ie, len); + ifsta->extra_ie_len = len; + return 0; +} + +int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason) +{ + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + + printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n", + sdata->dev->name, reason); + + if (sdata->vif.type != IEEE80211_IF_TYPE_STA && + sdata->vif.type != IEEE80211_IF_TYPE_IBSS) + return -EINVAL; + + ieee80211_set_disassoc(sdata, ifsta, true, true, reason); + return 0; +} + +int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason) +{ + struct ieee80211_if_sta *ifsta = &sdata->u.sta; + + printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n", + sdata->dev->name, reason); + + if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + return -EINVAL; + + if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED)) + return -1; + + ieee80211_set_disassoc(sdata, ifsta, false, true, reason); + return 0; +} + +/* scan finished notification */ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata = local->scan_sdata; @@ -2544,3 +2548,25 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) ieee80211_restart_sta_timer(sdata); rcu_read_unlock(); } + +/* driver notification call */ +void ieee80211_notify_mac(struct ieee80211_hw *hw, + enum ieee80211_notification_types notif_type) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata; + + switch (notif_type) { + case IEEE80211_NOTIFY_RE_ASSOC: + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + continue; + + ieee80211_sta_req_auth(sdata, &sdata->u.sta); + } + rcu_read_unlock(); + break; + } +} +EXPORT_SYMBOL(ieee80211_notify_mac); |