#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/random.h>
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
-#include <net/iw_handler.h>
+#include <linux/pm_qos_params.h>
+#include <linux/crc32.h>
#include <net/mac80211.h>
#include <asm/unaligned.h>
#include "ieee80211_i.h"
+#include "driver-ops.h"
#include "rate.h"
#include "led.h"
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
#define IEEE80211_ASSOC_MAX_TRIES 3
#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
-#define IEEE80211_PROBE_INTERVAL (60 * HZ)
+#define IEEE80211_PROBE_IDLE_TIME (60 * HZ)
#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
-#define IEEE80211_SCAN_INTERVAL (2 * HZ)
-#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
-#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
-
-#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
-#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
-
-#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
-
/* utils */
static int ecw2cw(int ecw)
return count;
}
-/* also used by mesh code */
-u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
- struct ieee802_11_elems *elems,
- enum ieee80211_band band)
+/*
+ * ieee80211_enable_ht should be called only after the operating band
+ * has been determined as ht configuration depends on the hw's
+ * HT abilities for a specific band.
+ */
+static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_ht_info *hti,
+ u16 ap_ht_cap_flags)
{
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
- struct ieee80211_rate *bitrates;
- size_t num_rates;
- u32 supp_rates;
- int i, j;
- sband = local->hw.wiphy->bands[band];
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_bss_ht_conf ht;
+ struct sta_info *sta;
+ u32 changed = 0;
+ bool enable_ht = true, ht_changed;
+ enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
- if (!sband) {
- WARN_ON(1);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- }
+ 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;
-}
+ memset(&ht, 0, sizeof(ht));
-/* frame sending functions */
+ /* HT is not supported */
+ if (!sband->ht_cap.ht_supported)
+ enable_ht = false;
-static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
-{
- if (ies)
- memcpy(skb_put(skb, ies_len), ies, ies_len);
-}
+ /* check that channel matches the right operating channel */
+ if (local->hw.conf.channel->center_freq !=
+ ieee80211_channel_to_frequency(hti->control_chan))
+ enable_ht = false;
-/* also used by scanning code */
-void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
- u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_supported_band *sband;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *supp_rates, *esupp_rates = NULL;
- int i;
+ if (enable_ht) {
+ channel_type = NL80211_CHAN_HT20;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
- sdata->u.sta.ie_probereq_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "request\n", sdata->dev->name);
- return;
+ if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+ (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+ (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
+ switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+ channel_type = NL80211_CHAN_HT40PLUS;
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+ channel_type = NL80211_CHAN_HT40MINUS;
+ break;
+ }
+ }
}
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_REQ);
- memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
- if (dst) {
- memcpy(mgmt->da, dst, ETH_ALEN);
- memcpy(mgmt->bssid, dst, ETH_ALEN);
- } else {
- memset(mgmt->da, 0xff, ETH_ALEN);
- memset(mgmt->bssid, 0xff, ETH_ALEN);
- }
- pos = skb_put(skb, 2 + ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ssid_len;
- memcpy(pos, ssid, ssid_len);
+ ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
+ channel_type != local->hw.conf.channel_type;
- supp_rates = skb_put(skb, 2);
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ local->oper_channel_type = channel_type;
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *rate = &sband->bitrates[i];
- if (esupp_rates) {
- pos = skb_put(skb, 1);
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = skb_put(skb, 3);
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- } else {
- pos = skb_put(skb, 1);
- supp_rates[1]++;
- }
- *pos = rate->bitrate / 5;
- }
+ if (ht_changed) {
+ /* channel_type change automatically detected */
+ ieee80211_hw_config(local, 0);
- add_extra_ies(skb, sdata->u.sta.ie_probereq,
- sdata->u.sta.ie_probereq_len);
+ rcu_read_lock();
- ieee80211_tx_skb(sdata, skb, 0);
-}
+ sta = sta_info_get(local, ifmgd->bssid);
+ if (sta)
+ rate_control_rate_update(local, sband, sta,
+ IEEE80211_RC_HT_CHANGED);
-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;
+ rcu_read_unlock();
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 6 + extra_len +
- sdata->u.sta.ie_auth_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
- "frame\n", sdata->dev->name);
- return;
+ }
+
+ /* disable HT */
+ if (!enable_ht)
+ return 0;
+
+ ht.operation_mode = le16_to_cpu(hti->operation_mode);
+
+ /* if bss configuration changed store the new one */
+ if (memcmp(&sdata->vif.bss_conf.ht, &ht, sizeof(ht))) {
+ changed |= BSS_CHANGED_HT;
+ sdata->vif.bss_conf.ht = ht;
}
- 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);
- add_extra_ies(skb, sdata->u.sta.ie_auth, sdata->u.sta.ie_auth_len);
-
- ieee80211_tx_skb(sdata, skb, encrypt);
+ return changed;
}
-static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+/* frame sending functions */
+
+static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
{
+ 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, *e_ies;
+ u8 *pos, *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;
- size_t e_ies_len;
-
- if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
- e_ies = sdata->u.sta.ie_reassocreq;
- e_ies_len = sdata->u.sta.ie_reassocreq_len;
- } else {
- e_ies = sdata->u.sta.ie_assocreq;
- e_ies_len = sdata->u.sta.ie_assocreq_len;
- }
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
- ifsta->ssid_len + e_ies_len);
+ sizeof(*mgmt) + 200 + ifmgd->extra_ie_len +
+ ifmgd->ssid_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
"frame\n", sdata->dev->name);
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- capab = ifsta->capab;
+ capab = ifmgd->capab;
if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
}
- bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+ bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
+ ifmgd->ssid, ifmgd->ssid_len);
if (bss) {
if (bss->cbss.capability & WLAN_CAPABILITY_PRIVACY)
capab |= WLAN_CAPABILITY_PRIVACY;
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN);
- if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
+ if (ifmgd->flags & IEEE80211_STA_PREV_BSSID_SET) {
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, ifsta->prev_bssid,
+ memcpy(mgmt->u.reassoc_req.current_ap, ifmgd->prev_bssid,
ETH_ALEN);
} else {
skb_put(skb, 4);
}
/* SSID */
- ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
+ ies = pos = skb_put(skb, 2 + ifmgd->ssid_len);
*pos++ = WLAN_EID_SSID;
- *pos++ = ifsta->ssid_len;
- memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+ *pos++ = ifmgd->ssid_len;
+ memcpy(pos, ifmgd->ssid, ifmgd->ssid_len);
/* add all rates which were marked to be used above */
supp_rates_len = rates_len;
}
}
- if (ifsta->extra_ie) {
- pos = skb_put(skb, ifsta->extra_ie_len);
- memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
+ if (ifmgd->extra_ie) {
+ pos = skb_put(skb, ifmgd->extra_ie_len);
+ memcpy(pos, ifmgd->extra_ie, ifmgd->extra_ie_len);
}
- if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+ if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED)) {
pos = skb_put(skb, 9);
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = 7; /* len */
* mode (11a/b/g) if any one of these ciphers is
* configured as pairwise.
*/
- if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
+ 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[1] >= sizeof(struct ieee80211_ht_info) &&
- (!(ifsta->flags & IEEE80211_STA_TKIP_WEP_USED))) {
+ (!(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))) {
struct ieee80211_ht_info *ht_info =
(struct ieee80211_ht_info *)(ht_ie + 2);
u16 cap = sband->ht_cap.cap;
memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
}
- add_extra_ies(skb, e_ies, e_ies_len);
-
- kfree(ifsta->assocreq_ies);
- ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
- ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
- if (ifsta->assocreq_ies)
- memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
+ 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);
}
u16 stype, u16 reason)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
- u8 *ies;
- size_t ies_len;
- if (stype == IEEE80211_STYPE_DEAUTH) {
- ies = sdata->u.sta.ie_deauth;
- ies_len = sdata->u.sta.ie_deauth_len;
- } else {
- ies = sdata->u.sta.ie_disassoc;
- ies_len = sdata->u.sta.ie_disassoc_len;
- }
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) +
- ies_len);
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for "
"deauth/disassoc frame\n", sdata->dev->name);
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->bssid, ifmgd->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);
- add_extra_ies(skb, ies, ies_len);
-
- ieee80211_tx_skb(sdata, skb, ifsta->flags & IEEE80211_STA_MFP_ENABLED);
+ if (stype == IEEE80211_STYPE_DEAUTH)
+ cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len);
+ else
+ cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len);
+ ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_pspoll *pspoll;
struct sk_buff *skb;
u16 fc;
memset(pspoll, 0, sizeof(*pspoll));
fc = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL | IEEE80211_FCTL_PM;
pspoll->frame_control = cpu_to_le16(fc);
- pspoll->aid = cpu_to_le16(ifsta->aid);
+ pspoll->aid = cpu_to_le16(ifmgd->aid);
/* aid in PS-Poll has its two MSBs each set to 1 */
pspoll->aid |= cpu_to_le16(1 << 15 | 1 << 14);
- memcpy(pspoll->bssid, ifsta->bssid, ETH_ALEN);
+ memcpy(pspoll->bssid, ifmgd->bssid, ETH_ALEN);
memcpy(pspoll->ta, sdata->dev->dev_addr, ETH_ALEN);
ieee80211_tx_skb(sdata, skb, 0);
+}
+
+void ieee80211_send_nullfunc(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ int powersave)
+{
+ struct sk_buff *skb;
+ struct ieee80211_hdr *nullfunc;
+ __le16 fc;
+
+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
+ return;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+ "frame\n", sdata->dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+ memset(nullfunc, 0, 24);
+ fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+ IEEE80211_FCTL_TODS);
+ if (powersave)
+ fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+ nullfunc->frame_control = fc;
+ memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
+ memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
- return;
+ ieee80211_tx_skb(sdata, skb, 0);
}
-/* MLME */
-static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
- const size_t supp_rates_len,
- const u8 *supp_rates)
+/* powersave */
+static void ieee80211_enable_ps(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = sdata->local;
- int i, have_higher_than_11mbit = 0;
+ struct ieee80211_conf *conf = &local->hw.conf;
- /* cf. IEEE 802.11 9.2.12 */
- for (i = 0; i < supp_rates_len; i++)
- if ((supp_rates[i] & 0x7f) * 5 > 110)
- have_higher_than_11mbit = 1;
+ /*
+ * If we are scanning right now then the parameters will
+ * take effect when scan finishes.
+ */
+ if (local->hw_scanning || local->sw_scanning)
+ return;
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
- have_higher_than_11mbit)
- sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
- else
- sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+ if (conf->dynamic_ps_timeout > 0 &&
+ !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
+ mod_timer(&local->dynamic_ps_timer, jiffies +
+ msecs_to_jiffies(conf->dynamic_ps_timeout));
+ } else {
+ if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+ ieee80211_send_nullfunc(local, sdata, 1);
+ conf->flags |= IEEE80211_CONF_PS;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ }
+}
+
+static void ieee80211_change_ps(struct ieee80211_local *local)
+{
+ struct ieee80211_conf *conf = &local->hw.conf;
+
+ if (local->ps_sdata) {
+ if (!(local->ps_sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
+ return;
+
+ ieee80211_enable_ps(local, local->ps_sdata);
+ } else if (conf->flags & IEEE80211_CONF_PS) {
+ conf->flags &= ~IEEE80211_CONF_PS;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ del_timer_sync(&local->dynamic_ps_timer);
+ cancel_work_sync(&local->dynamic_ps_enable_work);
+ }
+}
+
+/* need to hold RTNL or interface lock */
+void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
+{
+ struct ieee80211_sub_if_data *sdata, *found = NULL;
+ int count = 0;
+
+ if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) {
+ local->ps_sdata = NULL;
+ return;
+ }
+
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ if (!netif_running(sdata->dev))
+ continue;
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ continue;
+ found = sdata;
+ count++;
+ }
+
+ if (count == 1 && found->u.mgd.powersave) {
+ s32 beaconint_us;
+
+ if (latency < 0)
+ latency = pm_qos_requirement(PM_QOS_NETWORK_LATENCY);
+
+ beaconint_us = ieee80211_tu_to_usec(
+ found->vif.bss_conf.beacon_int);
+
+ if (beaconint_us > latency) {
+ local->ps_sdata = NULL;
+ } else {
+ u8 dtimper = found->vif.bss_conf.dtim_period;
+ int maxslp = 1;
+
+ if (dtimper > 1)
+ maxslp = min_t(int, dtimper,
+ latency / beaconint_us);
+
+ local->hw.conf.max_sleep_period = maxslp;
+ local->ps_sdata = found;
+ }
+ } else {
+ local->ps_sdata = NULL;
+ }
+
+ ieee80211_change_ps(local);
+}
+
+void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local,
+ dynamic_ps_disable_work);
+
+ if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+ local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ }
+
+ ieee80211_wake_queues_by_reason(&local->hw,
+ IEEE80211_QUEUE_STOP_REASON_PS);
+}
+
+void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local,
+ dynamic_ps_enable_work);
+ struct ieee80211_sub_if_data *sdata = local->ps_sdata;
+
+ /* can only happen when PS was just disabled anyway */
+ if (!sdata)
+ return;
+
+ if (local->hw.conf.flags & IEEE80211_CONF_PS)
+ return;
+
+ if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+ ieee80211_send_nullfunc(local, sdata, 1);
+
+ local->hw.conf.flags |= IEEE80211_CONF_PS;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+}
+
+void ieee80211_dynamic_ps_timer(unsigned long data)
+{
+ struct ieee80211_local *local = (void *) data;
- ieee80211_set_wmm_default(sdata);
+ queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
}
+/* MLME */
static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
- struct ieee80211_if_sta *ifsta,
+ struct ieee80211_if_managed *ifmgd,
u8 *wmm_param, size_t wmm_param_len)
{
struct ieee80211_tx_queue_params params;
int count;
u8 *pos;
- if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+ if (!(ifmgd->flags & IEEE80211_STA_WMM_ENABLED))
return;
if (!wmm_param)
if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
return;
count = wmm_param[6] & 0x0f;
- if (count == ifsta->wmm_last_param_set)
+ if (count == ifmgd->wmm_last_param_set)
return;
- ifsta->wmm_last_param_set = count;
+ ifmgd->wmm_last_param_set = count;
pos = wmm_param + 8;
left = wmm_param_len - 8;
memset(¶ms, 0, sizeof(params));
- if (!local->ops->conf_tx)
- return;
-
local->wmm_acm = 0;
for (; left >= 4; left -= 4, pos += 4) {
int aci = (pos[0] >> 5) & 0x03;
int queue;
switch (aci) {
- case 1:
+ case 1: /* AC_BK */
queue = 3;
if (acm)
- local->wmm_acm |= BIT(0) | BIT(3);
+ local->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
break;
- case 2:
+ case 2: /* AC_VI */
queue = 1;
if (acm)
- local->wmm_acm |= BIT(4) | BIT(5);
+ local->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
break;
- case 3:
+ case 3: /* AC_VO */
queue = 0;
if (acm)
- local->wmm_acm |= BIT(6) | BIT(7);
+ local->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
break;
- case 0:
+ case 0: /* AC_BE */
default:
queue = 2;
if (acm)
- local->wmm_acm |= BIT(1) | BIT(2);
+ local->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
break;
}
local->mdev->name, queue, aci, acm, params.aifs, params.cw_min,
params.cw_max, params.txop);
#endif
- /* TODO: handle ACM (block TX, fallback to next lowest allowed
- * AC for now) */
- if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) {
+ if (drv_conf_tx(local, queue, ¶ms) && local->ops->conf_tx)
printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", local->mdev->name, queue);
- }
+ "parameters for queue %d\n", local->mdev->name,
+ queue);
}
}
-static bool ieee80211_check_tim(struct ieee802_11_elems *elems, u16 aid)
-{
- u8 mask;
- u8 index, indexn1, indexn2;
- struct ieee80211_tim_ie *tim = (struct ieee80211_tim_ie *) elems->tim;
-
- aid &= 0x3fff;
- index = aid / 8;
- mask = 1 << (aid & 7);
-
- indexn1 = tim->bitmap_ctrl & 0xfe;
- indexn2 = elems->tim_len + indexn1 - 4;
-
- if (index < indexn1 || index > indexn2)
- return false;
-
- index -= indexn1;
-
- return !!(tim->virtual_map[index] & mask);
-}
-
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_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
#endif
u32 changed = 0;
bool use_protection;
printk(KERN_DEBUG "%s: CTS protection %s (BSSID=%pM)\n",
sdata->dev->name,
use_protection ? "enabled" : "disabled",
- ifsta->bssid);
+ ifmgd->bssid);
}
#endif
bss_conf->use_cts_prot = use_protection;
" (BSSID=%pM)\n",
sdata->dev->name,
use_short_preamble ? "short" : "long",
- ifsta->bssid);
+ ifmgd->bssid);
}
#endif
bss_conf->use_short_preamble = use_short_preamble;
" (BSSID=%pM)\n",
sdata->dev->name,
use_short_slot ? "short" : "long",
- ifsta->bssid);
+ ifmgd->bssid);
}
#endif
bss_conf->use_short_slot = use_short_slot;
return changed;
}
-static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata)
{
union iwreq_data wrqu;
+
memset(&wrqu, 0, sizeof(wrqu));
- if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
- memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
+ 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_sta *ifsta)
+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 (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
+ if (!ifmgd->assocreq_ies && !ifmgd->assocresp_ies)
return;
- buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
- ifsta->assocresp_ies_len), GFP_KERNEL);
+ buf = kmalloc(50 + 2 * (ifmgd->assocreq_ies_len +
+ ifmgd->assocresp_ies_len), GFP_KERNEL);
if (!buf)
return;
len = sprintf(buf, "ASSOCINFO(");
- if (ifsta->assocreq_ies) {
+ if (ifmgd->assocreq_ies) {
len += sprintf(buf + len, "ReqIEs=");
- for (i = 0; i < ifsta->assocreq_ies_len; i++) {
+ for (i = 0; i < ifmgd->assocreq_ies_len; i++) {
len += sprintf(buf + len, "%02x",
- ifsta->assocreq_ies[i]);
+ ifmgd->assocreq_ies[i]);
}
}
- if (ifsta->assocresp_ies) {
- if (ifsta->assocreq_ies)
+ if (ifmgd->assocresp_ies) {
+ if (ifmgd->assocreq_ies)
len += sprintf(buf + len, " ");
len += sprintf(buf + len, "RespIEs=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ for (i = 0; i < ifmgd->assocresp_ies_len; i++) {
len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
+ ifmgd->assocresp_ies[i]);
}
}
len += sprintf(buf + len, ")");
if (len > IW_CUSTOM_MAX) {
len = sprintf(buf, "ASSOCRESPIE=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ for (i = 0; i < ifmgd->assocresp_ies_len; i++) {
len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
+ ifmgd->assocresp_ies[i]);
}
}
static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
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;
- ifsta->flags |= IEEE80211_STA_ASSOCIATED;
+ ifmgd->flags |= IEEE80211_STA_ASSOCIATED;
- bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+ bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
conf->channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
+ 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);
+ cfg80211_hold_bss(&bss->cbss);
+
ieee80211_rx_bss_put(local, bss);
}
- ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
- ieee80211_sta_send_associnfo(sdata, ifsta);
+ ifmgd->flags |= IEEE80211_STA_PREV_BSSID_SET;
+ memcpy(ifmgd->prev_bssid, sdata->u.mgd.bssid, ETH_ALEN);
+ ieee80211_sta_send_associnfo(sdata);
- ifsta->last_probe = jiffies;
+ ifmgd->last_probe = jiffies;
ieee80211_led_assoc(local, 1);
sdata->vif.bss_conf.assoc = 1;
bss_info_changed |= BSS_CHANGED_BASIC_RATES;
ieee80211_bss_info_change_notify(sdata, bss_info_changed);
- if (local->powersave) {
- if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) &&
- local->hw.conf.dynamic_ps_timeout > 0) {
- mod_timer(&local->dynamic_ps_timer, jiffies +
- msecs_to_jiffies(
- local->hw.conf.dynamic_ps_timeout));
- } else {
- if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
- ieee80211_send_nullfunc(local, sdata, 1);
- conf->flags |= IEEE80211_CONF_PS;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
- }
+ /* will be same as sdata */
+ if (local->ps_sdata) {
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, -1);
+ mutex_unlock(&local->iflist_mtx);
}
netif_tx_start_all_queues(sdata->dev);
netif_carrier_on(sdata->dev);
- ieee80211_sta_send_apinfo(sdata, ifsta);
+ ieee80211_sta_send_apinfo(sdata);
}
-static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
{
- ifsta->direct_probe_tries++;
- if (ifsta->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
+ 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) {
printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n",
- sdata->dev->name, ifsta->bssid);
- ifsta->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_sta_send_apinfo(sdata, ifsta);
+ sdata->dev->name, ifmgd->bssid);
+ ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+ ieee80211_recalc_idle(local);
+ cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
/*
* Most likely AP is not in the range so remove the
* bss information associated to the AP
*/
- ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
sdata->local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
+ ifmgd->ssid, ifmgd->ssid_len);
+
+ /*
+ * 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
+ */
+ queue_work(local->hw.workqueue, &ifmgd->work);
return;
}
printk(KERN_DEBUG "%s: direct probe to AP %pM try %d\n",
- sdata->dev->name, ifsta->bssid,
- ifsta->direct_probe_tries);
+ sdata->dev->name, ifmgd->bssid,
+ ifmgd->direct_probe_tries);
- ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
-
- set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifsta->request);
+ ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
/* 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,
- ifsta->ssid, ifsta->ssid_len);
+ ifmgd->ssid, ifmgd->ssid_len, NULL, 0);
- mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
+ mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
}
-static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
{
- ifsta->auth_tries++;
- if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
+ 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) {
printk(KERN_DEBUG "%s: authentication with AP %pM"
" timed out\n",
- sdata->dev->name, ifsta->bssid);
- ifsta->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_sta_send_apinfo(sdata, ifsta);
- ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ 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,
- ifsta->ssid, ifsta->ssid_len);
+ ifmgd->ssid, ifmgd->ssid_len);
+
+ /*
+ * 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
+ */
+ queue_work(local->hw.workqueue, &ifmgd->work);
return;
}
- ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+ ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
printk(KERN_DEBUG "%s: authenticate with AP %pM\n",
- sdata->dev->name, ifsta->bssid);
+ sdata->dev->name, ifmgd->bssid);
- ieee80211_send_auth(sdata, ifsta, 1, NULL, 0, 0);
+ 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;
- mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
+ mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
}
/*
* if self disconnected or a reason code from the AP.
*/
static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta, bool deauth,
- bool self_disconnected, u16 reason)
+ bool deauth, bool self_disconnected,
+ u16 reason)
{
+ 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;
rcu_read_lock();
- sta = sta_info_get(local, ifsta->bssid);
+ sta = sta_info_get(local, ifmgd->bssid);
if (!sta) {
rcu_read_unlock();
return;
}
if (deauth) {
- ifsta->direct_probe_tries = 0;
- ifsta->auth_tries = 0;
+ ifmgd->direct_probe_tries = 0;
+ ifmgd->auth_tries = 0;
}
- ifsta->assoc_scan_tries = 0;
- ifsta->assoc_tries = 0;
+ ifmgd->assoc_scan_tries = 0;
+ ifmgd->assoc_tries = 0;
netif_tx_stop_all_queues(sdata->dev);
netif_carrier_off(sdata->dev);
ieee80211_sta_tear_down_BA_sessions(sta);
+ 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_DISASSOC, reason);
}
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+ 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, ifsta);
+ ieee80211_sta_send_apinfo(sdata);
if (self_disconnected || reason == WLAN_REASON_DISASSOC_STA_HAS_LEFT) {
- ifsta->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+ ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
sdata->local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
+ ifmgd->ssid, ifmgd->ssid_len);
}
rcu_read_unlock();
+ ieee80211_recalc_idle(local);
+
/* channel(_type) changes are handled by ieee80211_hw_config */
local->oper_channel_type = NL80211_CHAN_NO_HT;
rcu_read_lock();
- sta = sta_info_get(local, ifsta->bssid);
+ sta = sta_info_get(local, ifmgd->bssid);
if (!sta) {
rcu_read_unlock();
return;
return 1;
}
-static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+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 (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
+ if (!ifmgd || (ifmgd->flags & IEEE80211_STA_EXT_SME))
return 0;
- bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+ bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
+ 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 = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
+ privacy_invoked = !!(ifmgd->flags & IEEE80211_STA_PRIVACY_INVOKED);
ieee80211_rx_bss_put(local, bss);
return 1;
}
-static void ieee80211_associate(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
{
- ifsta->assoc_tries++;
- if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
+ 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) {
printk(KERN_DEBUG "%s: association with AP %pM"
" timed out\n",
- sdata->dev->name, ifsta->bssid);
- ifsta->state = IEEE80211_STA_MLME_DISABLED;
- ieee80211_sta_send_apinfo(sdata, ifsta);
- ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+ 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,
- ifsta->ssid, ifsta->ssid_len);
+ ifmgd->ssid, ifmgd->ssid_len);
+ /*
+ * 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
+ */
+ queue_work(local->hw.workqueue, &ifmgd->work);
return;
}
- ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
+ ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
printk(KERN_DEBUG "%s: associate with AP %pM\n",
- sdata->dev->name, ifsta->bssid);
- if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+ 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);
- ifsta->state = IEEE80211_STA_MLME_DISABLED;
+ ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+ ieee80211_recalc_idle(local);
return;
}
- ieee80211_send_assoc(sdata, ifsta);
+ ieee80211_send_assoc(sdata);
+
+ mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+}
+
+void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_hdr *hdr)
+{
+ /*
+ * We can postpone the mgd.timer whenever receiving unicast frames
+ * from AP because we know that the connection is working both ways
+ * at that time. But multicast frames (and hence also beacons) must
+ * be ignored here, because we need to trigger the timer during
+ * data idle periods for sending the periodical probe request to
+ * the AP.
+ */
+ if (!is_multicast_ether_addr(hdr->addr1))
+ mod_timer(&sdata->u.mgd.timer,
+ jiffies + IEEE80211_MONITORING_INTERVAL);
+}
+
+void ieee80211_beacon_loss_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data,
+ u.mgd.beacon_loss_work);
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+#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);
+ }
+#endif
+
+ ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+ ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+ ifmgd->ssid_len, NULL, 0);
- mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+ mod_timer(&ifmgd->timer, jiffies + IEEE80211_MONITORING_INTERVAL);
}
+void ieee80211_beacon_loss(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+ queue_work(sdata->local->hw.workqueue,
+ &sdata->u.mgd.beacon_loss_work);
+}
+EXPORT_SYMBOL(ieee80211_beacon_loss);
-static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+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;
- int disassoc;
+ 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 */
- ifsta->state = IEEE80211_STA_MLME_ASSOCIATED;
+ ifmgd->state = IEEE80211_STA_MLME_ASSOCIATED;
rcu_read_lock();
- sta = sta_info_get(local, ifsta->bssid);
+ sta = sta_info_get(local, ifmgd->bssid);
if (!sta) {
printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
- sdata->dev->name, ifsta->bssid);
- disassoc = 1;
- } else {
- disassoc = 0;
- if (time_after(jiffies,
- sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
- printk(KERN_DEBUG "%s: No ProbeResp from "
- "current AP %pM - assume out of "
- "range\n",
- sdata->dev->name, ifsta->bssid);
- disassoc = 1;
- } else
- ieee80211_send_probe_req(sdata, ifsta->bssid,
- ifsta->ssid,
- ifsta->ssid_len);
- ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
- } else {
- ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
- if (time_after(jiffies, ifsta->last_probe +
- IEEE80211_PROBE_INTERVAL)) {
- ifsta->last_probe = jiffies;
- ieee80211_send_probe_req(sdata, ifsta->bssid,
- ifsta->ssid,
- ifsta->ssid_len);
- }
+ sdata->dev->name, ifmgd->bssid);
+ disassoc = true;
+ goto unlock;
+ }
+
+ if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
+ time_after(jiffies, sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+ 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 unlock;
+ }
+
+ /*
+ * 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;
+ ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+ ifmgd->ssid_len, NULL, 0);
+ goto unlock;
+
+ }
+
+ if (time_after(jiffies, sta->last_rx + IEEE80211_PROBE_IDLE_TIME)) {
+ ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+ ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+ ifmgd->ssid_len, NULL, 0);
}
+ unlock:
rcu_read_unlock();
if (disassoc)
- ieee80211_set_disassoc(sdata, ifsta, true, true,
+ ieee80211_set_disassoc(sdata, true, true,
WLAN_REASON_PREV_AUTH_NOT_VALID);
else
- mod_timer(&ifsta->timer, jiffies +
+ mod_timer(&ifmgd->timer, jiffies +
IEEE80211_MONITORING_INTERVAL);
}
-static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
- ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
- ieee80211_associate(sdata, ifsta);
+ 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_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len)
{
ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
if (!elems.challenge)
return;
- ieee80211_send_auth(sdata, ifsta, 3, elems.challenge - 2,
- elems.challenge_len + 2, 1);
+ ieee80211_send_auth(sdata, 3, sdata->u.mgd.auth_alg,
+ elems.challenge - 2, elems.challenge_len + 2,
+ sdata->u.mgd.bssid, 1);
+ sdata->u.mgd.auth_transaction = 4;
}
-static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
+ 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 (len < 24 + 6)
return;
+ if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0)
+ return;
+
+ if (memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
+ return;
+
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);
- /*
- * IEEE 802.11 standard does not require authentication in IBSS
- * networks and most implementations do not seem to use it.
- * However, try to reply to authentication attempts if someone
- * has actually implemented this.
- */
- if (auth_alg == WLAN_AUTH_OPEN && auth_transaction == 1)
- ieee80211_send_auth(sdata, ifsta, 2, NULL, 0, 0);
-}
-
-static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u16 auth_alg, auth_transaction, status_code;
-
- if (ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE)
- return;
-
- if (len < 24 + 6)
- return;
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0)
- return;
-
- if (memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
- return;
-
- 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 != ifsta->auth_alg ||
- auth_transaction != ifsta->auth_transaction)
+ if (auth_alg != ifmgd->auth_alg ||
+ auth_transaction != ifmgd->auth_transaction)
return;
if (status_code != WLAN_STATUS_SUCCESS) {
const int num_algs = ARRAY_SIZE(algs);
int i, pos;
algs[0] = algs[1] = algs[2] = 0xff;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+ if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN)
algs[0] = WLAN_AUTH_OPEN;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+ if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
algs[1] = WLAN_AUTH_SHARED_KEY;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+ if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
algs[2] = WLAN_AUTH_LEAP;
- if (ifsta->auth_alg == WLAN_AUTH_OPEN)
+ if (ifmgd->auth_alg == WLAN_AUTH_OPEN)
pos = 0;
- else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY)
+ else if (ifmgd->auth_alg == WLAN_AUTH_SHARED_KEY)
pos = 1;
else
pos = 2;
pos++;
if (pos >= num_algs)
pos = 0;
- if (algs[pos] == ifsta->auth_alg ||
+ if (algs[pos] == ifmgd->auth_alg ||
algs[pos] == 0xff)
continue;
if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
!ieee80211_sta_wep_configured(sdata))
continue;
- ifsta->auth_alg = algs[pos];
+ ifmgd->auth_alg = algs[pos];
break;
}
}
return;
}
- switch (ifsta->auth_alg) {
+ switch (ifmgd->auth_alg) {
case WLAN_AUTH_OPEN:
case WLAN_AUTH_LEAP:
- ieee80211_auth_completed(sdata, ifsta);
+ case WLAN_AUTH_FT:
+ ieee80211_auth_completed(sdata);
+ cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
break;
case WLAN_AUTH_SHARED_KEY:
- if (ifsta->auth_transaction == 4)
- ieee80211_auth_completed(sdata, ifsta);
- else
- ieee80211_auth_challenge(sdata, ifsta, mgmt, len);
+ if (ifmgd->auth_transaction == 4) {
+ ieee80211_auth_completed(sdata);
+ cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
+ } else
+ ieee80211_auth_challenge(sdata, mgmt, len);
break;
}
}
static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u16 reason_code;
if (len < 24 + 2)
return;
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN))
+ if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN))
return;
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
- if (ifsta->flags & IEEE80211_STA_AUTHENTICATED)
+ if (ifmgd->flags & IEEE80211_STA_AUTHENTICATED)
printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n",
sdata->dev->name, reason_code);
- if (ifsta->state == IEEE80211_STA_MLME_AUTHENTICATE ||
- ifsta->state == IEEE80211_STA_MLME_ASSOCIATE ||
- ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) {
- ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
- mod_timer(&ifsta->timer, jiffies +
+ 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);
}
- ieee80211_set_disassoc(sdata, ifsta, true, false, 0);
- ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
+ ieee80211_set_disassoc(sdata, true, false, 0);
+ ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
+ cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, len);
}
static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u16 reason_code;
if (len < 24 + 2)
return;
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN))
+ if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN))
return;
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
- if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
+ if (ifmgd->flags & IEEE80211_STA_ASSOCIATED)
printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n",
sdata->dev->name, reason_code);
- if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) {
- ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
- mod_timer(&ifsta->timer, jiffies +
+ 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);
}
- ieee80211_set_disassoc(sdata, ifsta, false, false, reason_code);
+ ieee80211_set_disassoc(sdata, false, false, reason_code);
+ cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, len);
}
static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len,
int reassoc)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
struct sta_info *sta;
/* AssocResp and ReassocResp have identical structure, so process both
* of them in this function. */
- if (ifsta->state != IEEE80211_STA_MLME_ASSOCIATE)
+ if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
return;
if (len < 24 + 6)
return;
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0)
+ if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0)
return;
capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
"comeback duration %u TU (%u ms)\n",
sdata->dev->name, tu, ms);
if (ms > IEEE80211_ASSOC_TIMEOUT)
- mod_timer(&ifsta->timer,
+ mod_timer(&ifmgd->timer,
jiffies + msecs_to_jiffies(ms));
return;
}
/* 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. */
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ 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;
}
}
printk(KERN_DEBUG "%s: associated\n", sdata->dev->name);
- ifsta->aid = aid;
- ifsta->ap_capab = capab_info;
+ ifmgd->aid = aid;
+ ifmgd->ap_capab = capab_info;
- kfree(ifsta->assocresp_ies);
- ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt);
- ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL);
- if (ifsta->assocresp_ies)
- memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
+ 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, ifsta->bssid);
+ sta = sta_info_get(local, ifmgd->bssid);
if (!sta) {
newsta = true;
- sta = sta_info_alloc(sdata, ifsta->bssid, GFP_ATOMIC);
+ sta = sta_info_alloc(sdata, ifmgd->bssid, GFP_ATOMIC);
if (!sta) {
printk(KERN_DEBUG "%s: failed to alloc STA entry for"
" the AP\n", sdata->dev->name);
for (i = 0; i < elems.ext_supp_rates_len; i++) {
int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
- bool is_basic = !!(elems.supp_rates[i] & 0x80);
+ bool is_basic = !!(elems.ext_supp_rates[i] & 0x80);
if (rate > 110)
have_higher_than_11mbit = true;
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
- if (elems.ht_cap_elem)
+ /* 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))
ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
rate_control_rate_init(sta);
- if (ifsta->flags & IEEE80211_STA_MFP_ENABLED)
+ if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
set_sta_flags(sta, WLAN_STA_MFP);
if (elems.wmm_param)
rcu_read_unlock();
if (elems.wmm_param)
- ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
+ ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
elems.wmm_param_len);
if (elems.ht_info_elem && elems.wmm_param &&
- (ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+ (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&
+ !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))
changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
ap_ht_cap_flags);
* ieee80211_set_associated() will tell the driver */
bss_conf->aid = aid;
bss_conf->assoc_capability = capab_info;
- ieee80211_set_associated(sdata, ifsta, changed);
-
- ieee80211_associated(sdata, ifsta);
-}
-
-
-static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- const u8 *bssid, const int beacon_int,
- const int freq,
- const size_t supp_rates_len,
- const u8 *supp_rates,
- const u16 capability)
-{
- struct ieee80211_local *local = sdata->local;
- int res = 0, rates, i, j;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos;
- struct ieee80211_supported_band *sband;
- union iwreq_data wrqu;
-
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
- }
-
- if ((ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) &&
- memcmp(ifsta->bssid, bssid, ETH_ALEN) == 0)
- return res;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400 +
- sdata->u.sta.ie_proberesp_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "response\n", sdata->dev->name);
- return -ENOMEM;
- }
-
- if (!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) {
- /* Remove possible STA entries from other IBSS networks. */
- sta_info_flush_delayed(sdata);
- }
-
- memcpy(ifsta->bssid, bssid, ETH_ALEN);
- res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
- if (res)
- return res;
+ ieee80211_set_associated(sdata, changed);
- local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
-
- sdata->drop_unencrypted = capability &
- WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
- res = ieee80211_set_freq(sdata, freq);
-
- if (res)
- return res;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- /* Build IBSS probe response */
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *)
- skb_put(skb, 24 + sizeof(mgmt->u.beacon));
- memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
- memset(mgmt->da, 0xff, ETH_ALEN);
- memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->u.beacon.beacon_int =
- cpu_to_le16(local->hw.conf.beacon_int);
- mgmt->u.beacon.capab_info = cpu_to_le16(capability);
-
- pos = skb_put(skb, 2 + ifsta->ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ifsta->ssid_len;
- memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
- rates = supp_rates_len;
- if (rates > 8)
- rates = 8;
- pos = skb_put(skb, 2 + rates);
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, supp_rates, rates);
-
- if (sband->band == IEEE80211_BAND_2GHZ) {
- pos = skb_put(skb, 2 + 1);
- *pos++ = WLAN_EID_DS_PARAMS;
- *pos++ = 1;
- *pos++ = ieee80211_frequency_to_channel(freq);
- }
-
- pos = skb_put(skb, 2 + 2);
- *pos++ = WLAN_EID_IBSS_PARAMS;
- *pos++ = 2;
- /* FIX: set ATIM window based on scan results */
- *pos++ = 0;
- *pos++ = 0;
-
- if (supp_rates_len > 8) {
- rates = supp_rates_len - 8;
- pos = skb_put(skb, 2 + rates);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, &supp_rates[8], rates);
- }
-
- add_extra_ies(skb, sdata->u.sta.ie_proberesp,
- sdata->u.sta.ie_proberesp_len);
-
- ifsta->probe_resp = skb;
-
- ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
- IEEE80211_IFCC_BEACON_ENABLED);
-
-
- rates = 0;
- for (i = 0; i < supp_rates_len; i++) {
- int bitrate = (supp_rates[i] & 0x7f) * 5;
- for (j = 0; j < sband->n_bitrates; j++)
- if (sband->bitrates[j].bitrate == bitrate)
- rates |= BIT(j);
- }
- ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
-
- ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
-
- ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
- ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED;
- mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_led_assoc(local, true);
-
- memset(&wrqu, 0, sizeof(wrqu));
- memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
- wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
+ /*
+ * initialise the time of last beacon to be the association time,
+ * otherwise beacon loss check will trigger immediately
+ */
+ ifmgd->last_beacon = jiffies;
- return res;
+ ieee80211_associated(sdata);
+ cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
}
-static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_bss *bss)
-{
- return __ieee80211_sta_join_ibss(sdata, ifsta,
- bss->cbss.bssid,
- bss->cbss.beacon_interval,
- bss->cbss.channel->center_freq,
- bss->supp_rates_len, bss->supp_rates,
- bss->cbss.capability);
-}
static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
struct ieee80211_local *local = sdata->local;
int freq;
struct ieee80211_bss *bss;
- struct sta_info *sta;
struct ieee80211_channel *channel;
- u64 beacon_timestamp, rx_timestamp;
- u32 supp_rates = 0;
- enum ieee80211_band band = rx_status->band;
if (elems->ds_params && elems->ds_params_len == 1)
freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
return;
- if (sdata->vif.type == NL80211_IFTYPE_ADHOC && elems->supp_rates &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
- supp_rates = ieee80211_sta_get_rates(local, elems, band);
-
- rcu_read_lock();
-
- sta = sta_info_get(local, mgmt->sa);
- if (sta) {
- u32 prev_rates;
-
- prev_rates = sta->sta.supp_rates[band];
- /* make sure mandatory rates are always added */
- sta->sta.supp_rates[band] = supp_rates |
- ieee80211_mandatory_rates(local, band);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- if (sta->sta.supp_rates[band] != prev_rates)
- printk(KERN_DEBUG "%s: updated supp_rates set "
- "for %pM based on beacon info (0x%llx | "
- "0x%llx -> 0x%llx)\n",
- sdata->dev->name,
- sta->sta.addr,
- (unsigned long long) prev_rates,
- (unsigned long long) supp_rates,
- (unsigned long long) sta->sta.supp_rates[band]);
-#endif
- } else {
- ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
- }
-
- rcu_read_unlock();
- }
-
bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
channel, beacon);
if (!bss)
return;
if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) &&
- (memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0)) {
+ (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN) == 0)) {
struct ieee80211_channel_sw_ie *sw_elem =
(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
ieee80211_process_chanswitch(sdata, sw_elem, bss);
}
- /* was just updated in ieee80211_bss_info_update */
- beacon_timestamp = bss->cbss.tsf;
-
- if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
- goto put_bss;
-
- /* check if we need to merge IBSS */
-
- /* merge only on beacons (???) */
- if (!beacon)
- goto put_bss;
-
- /* we use a fixed BSSID */
- if (sdata->u.sta.flags & IEEE80211_STA_BSSID_SET)
- goto put_bss;
-
- /* not an IBSS */
- if (!(bss->cbss.capability & WLAN_CAPABILITY_IBSS))
- goto put_bss;
-
- /* different channel */
- if (bss->cbss.channel != local->oper_channel)
- goto put_bss;
-
- /* different SSID */
- if (elems->ssid_len != sdata->u.sta.ssid_len ||
- memcmp(elems->ssid, sdata->u.sta.ssid,
- sdata->u.sta.ssid_len))
- goto put_bss;
-
- if (rx_status->flag & RX_FLAG_TSFT) {
- /*
- * For correct IBSS merging we need mactime; since mactime is
- * defined as the time the first data symbol of the frame hits
- * the PHY, and the timestamp of the beacon is defined as "the
- * time that the data symbol containing the first bit of the
- * timestamp is transmitted to the PHY plus the transmitting
- * STA's delays through its local PHY from the MAC-PHY
- * interface to its interface with the WM" (802.11 11.1.2)
- * - equals the time this bit arrives at the receiver - we have
- * to take into account the offset between the two.
- *
- * E.g. at 1 MBit that means mactime is 192 usec earlier
- * (=24 bytes * 8 usecs/byte) than the beacon timestamp.
- */
- int rate;
-
- if (rx_status->flag & RX_FLAG_HT)
- rate = 65; /* TODO: HT rates */
- else
- rate = local->hw.wiphy->bands[band]->
- bitrates[rx_status->rate_idx].bitrate;
-
- rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
- } else if (local && local->ops && local->ops->get_tsf)
- /* second best option: get current TSF */
- rx_timestamp = local->ops->get_tsf(local_to_hw(local));
- else
- /* can't merge without knowing the TSF */
- rx_timestamp = -1LLU;
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "RX beacon SA=%pM BSSID="
- "%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n",
- mgmt->sa, mgmt->bssid,
- (unsigned long long)rx_timestamp,
- (unsigned long long)beacon_timestamp,
- (unsigned long long)(rx_timestamp - beacon_timestamp),
- jiffies);
-#endif
-
- if (beacon_timestamp > rx_timestamp) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: beacon TSF higher than "
- "local TSF - IBSS merge with BSSID %pM\n",
- sdata->dev->name, mgmt->bssid);
-#endif
- ieee80211_sta_join_ibss(sdata, &sdata->u.sta, bss);
- ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
- }
-
- put_bss:
ieee80211_rx_bss_put(local, bss);
}
size_t len,
struct ieee80211_rx_status *rx_status)
{
+ struct ieee80211_if_managed *ifmgd;
size_t baselen;
struct ieee802_11_elems elems;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+ ifmgd = &sdata->u.mgd;
if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
return; /* ignore ProbeResp to foreign address */
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
/* direct probe may be part of the association flow */
- if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
- &ifsta->request)) {
+ if (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE) {
printk(KERN_DEBUG "%s direct probe responded\n",
sdata->dev->name);
- ieee80211_authenticate(sdata, ifsta);
+ ieee80211_authenticate(sdata);
}
+
+ if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+ ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
}
+/*
+ * This is the canonical list of information elements we care about,
+ * the filter code also gives us all changes to the Microsoft OUI
+ * (00:50:F2) vendor IE which is used for WMM which we need to track.
+ *
+ * We implement beacon filtering in software since that means we can
+ * avoid processing the frame here and in cfg80211, and userspace
+ * will not be able to tell whether the hardware supports it or not.
+ *
+ * XXX: This list needs to be dynamic -- userspace needs to be able to
+ * add items it requires. It also needs to be able to tell us to
+ * look out for other vendor IEs.
+ */
+static const u64 care_about_ies =
+ (1ULL << WLAN_EID_COUNTRY) |
+ (1ULL << WLAN_EID_ERP_INFO) |
+ (1ULL << WLAN_EID_CHANNEL_SWITCH) |
+ (1ULL << WLAN_EID_PWR_CONSTRAINT) |
+ (1ULL << WLAN_EID_HT_CAPABILITY) |
+ (1ULL << WLAN_EID_HT_INFORMATION);
static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status)
{
- struct ieee80211_if_sta *ifsta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
size_t baselen;
struct ieee802_11_elems elems;
struct ieee80211_local *local = sdata->local;
u32 changed = 0;
- bool erp_valid, directed_tim;
+ bool erp_valid, directed_tim = false;
u8 erp_value = 0;
+ u32 ncrc;
/* Process beacon from the current BSS */
baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
if (baselen > len)
return;
- ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
-
- ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
-
- if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ if (rx_status->freq != local->hw.conf.channel->center_freq)
return;
- ifsta = &sdata->u.sta;
- if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) ||
- memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
+ if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED) ||
+ memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
- if (rx_status->freq != local->hw.conf.channel->center_freq)
+ ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
+ ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
+ len - baselen, &elems,
+ care_about_ies, ncrc);
+
+ if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+ directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len,
+ ifmgd->aid);
+
+ ncrc = crc32_be(ncrc, (void *)&directed_tim, sizeof(directed_tim));
+
+ if (ncrc == ifmgd->beacon_crc)
return;
+ ifmgd->beacon_crc = ncrc;
- ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
- elems.wmm_param_len);
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
- if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK &&
- local->hw.conf.flags & IEEE80211_CONF_PS) {
- directed_tim = ieee80211_check_tim(&elems, ifsta->aid);
+ ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
+ elems.wmm_param_len);
+ if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
if (directed_tim) {
if (local->hw.conf.dynamic_ps_timeout > 0) {
local->hw.conf.flags &= ~IEEE80211_CONF_PS;
erp_valid, erp_value);
- if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param) {
+ if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
+ !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) {
struct sta_info *sta;
struct ieee80211_supported_band *sband;
u16 ap_ht_cap_flags;
rcu_read_lock();
- sta = sta_info_get(local, ifsta->bssid);
+ sta = sta_info_get(local, ifmgd->bssid);
if (!sta) {
rcu_read_unlock();
return;
ieee80211_bss_info_change_notify(sdata, changed);
}
-
-static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
{
struct ieee80211_local *local = sdata->local;
- int tx_last_beacon;
- struct sk_buff *skb;
- struct ieee80211_mgmt *resp;
- u8 *pos, *end;
-
- if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED ||
- len < 24 + 2 || !ifsta->probe_resp)
- return;
-
- if (local->ops->tx_last_beacon)
- tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
- else
- tx_last_beacon = 1;
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
- " (tx_last_beacon=%d)\n",
- sdata->dev->name, mgmt->sa, mgmt->da,
- mgmt->bssid, tx_last_beacon);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- if (!tx_last_beacon)
- return;
-
- if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 &&
- memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
- return;
-
- end = ((u8 *) mgmt) + len;
- pos = mgmt->u.probe_req.variable;
- if (pos[0] != WLAN_EID_SSID ||
- pos + 2 + pos[1] > end) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
- "from %pM\n",
- sdata->dev->name, mgmt->sa);
-#endif
- return;
- }
- if (pos[1] != 0 &&
- (pos[1] != ifsta->ssid_len ||
- memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) {
- /* Ignore ProbeReq for foreign SSID */
- return;
- }
-
- /* Reply with ProbeResp */
- skb = skb_copy(ifsta->probe_resp, GFP_KERNEL);
- if (!skb)
- return;
-
- resp = (struct ieee80211_mgmt *) skb->data;
- memcpy(resp->da, mgmt->sa, ETH_ALEN);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: Sending ProbeResp to %pM\n",
- sdata->dev->name, resp->da);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- ieee80211_tx_skb(sdata, skb, 0);
-}
-
-void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_sta *ifsta;
struct ieee80211_mgmt *mgmt;
u16 fc;
if (skb->len < 24)
- goto fail;
-
- ifsta = &sdata->u.sta;
+ return RX_DROP_MONITOR;
mgmt = (struct ieee80211_mgmt *) skb->data;
fc = le16_to_cpu(mgmt->frame_control);
case IEEE80211_STYPE_REASSOC_RESP:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_DISASSOC:
- skb_queue_tail(&ifsta->skb_queue, skb);
- queue_work(local->hw.workqueue, &ifsta->work);
- return;
+ skb_queue_tail(&sdata->u.mgd.skb_queue, skb);
+ queue_work(local->hw.workqueue, &sdata->u.mgd.work);
+ return RX_QUEUED;
}
- fail:
- kfree_skb(skb);
+ return RX_DROP_MONITOR;
}
static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
struct ieee80211_rx_status *rx_status;
- struct ieee80211_if_sta *ifsta;
struct ieee80211_mgmt *mgmt;
u16 fc;
- ifsta = &sdata->u.sta;
-
rx_status = (struct ieee80211_rx_status *) skb->cb;
mgmt = (struct ieee80211_mgmt *) skb->data;
fc = le16_to_cpu(mgmt->frame_control);
- if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_REQ:
- ieee80211_rx_mgmt_probe_req(sdata, ifsta, mgmt,
- skb->len);
- break;
- 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_ibss(sdata, ifsta, mgmt,
- skb->len);
- break;
- }
- } else { /* NL80211_IFTYPE_STATION */
- 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, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt,
- skb->len, 0);
- break;
- case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt,
- skb->len, 1);
- break;
- case IEEE80211_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(sdata, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(sdata, ifsta, mgmt,
- skb->len);
- break;
- }
+ 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);
+ break;
+ case IEEE80211_STYPE_REASSOC_RESP:
+ ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 1);
+ break;
+ case IEEE80211_STYPE_DEAUTH:
+ ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
+ break;
+ case IEEE80211_STYPE_DISASSOC:
+ ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
+ break;
}
kfree_skb(skb);
}
-
-static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_local *local = sdata->local;
- int active = 0;
- struct sta_info *sta;
-
- rcu_read_lock();
-
- list_for_each_entry_rcu(sta, &local->sta_list, list) {
- if (sta->sdata == sdata &&
- time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
- jiffies)) {
- active++;
- break;
- }
- }
-
- rcu_read_unlock();
-
- return active;
-}
-
-
-static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
-{
- mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
- if (ieee80211_sta_active_ibss(sdata))
- return;
-
- if ((sdata->u.sta.flags & IEEE80211_STA_BSSID_SET) &&
- (!(sdata->u.sta.flags & IEEE80211_STA_AUTO_CHANNEL_SEL)))
- return;
-
- printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
- "IBSS networks with same SSID (merge)\n", sdata->dev->name);
-
- /* XXX maybe racy? */
- if (sdata->local->scan_req)
- return;
-
- memcpy(sdata->local->int_scan_req.ssids[0].ssid,
- ifsta->ssid, IEEE80211_MAX_SSID_LEN);
- sdata->local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
- ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
-}
-
-
static void ieee80211_sta_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
- set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
+ 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_sta *ifsta)
+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;
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
- }
+ /* Reset own TSF to allow time synchronization work. */
+ drv_reset_tsf(local);
- ifsta->wmm_last_param_set = -1; /* allow any WMM update */
+ ifmgd->wmm_last_param_set = -1; /* allow any WMM update */
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- ifsta->auth_alg = WLAN_AUTH_OPEN;
- else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
- else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- ifsta->auth_alg = WLAN_AUTH_LEAP;
+ 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
- ifsta->auth_alg = WLAN_AUTH_OPEN;
- ifsta->auth_transaction = -1;
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
- ifsta->assoc_scan_tries = 0;
- ifsta->direct_probe_tries = 0;
- ifsta->auth_tries = 0;
- ifsta->assoc_tries = 0;
+ 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_create_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_supported_band *sband;
- u8 *pos;
- u8 bssid[ETH_ALEN];
- u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
- u16 capability;
- int i;
-
- if (sdata->u.sta.flags & IEEE80211_STA_BSSID_SET) {
- memcpy(bssid, ifsta->bssid, ETH_ALEN);
- } else {
- /* Generate random, not broadcast, locally administered BSSID. Mix in
- * own MAC address to make sure that devices that do not have proper
- * random number generator get different BSSID. */
- get_random_bytes(bssid, ETH_ALEN);
- for (i = 0; i < ETH_ALEN; i++)
- bssid[i] ^= sdata->dev->dev_addr[i];
- bssid[0] &= ~0x01;
- bssid[0] |= 0x02;
- }
-
- printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
- sdata->dev->name, bssid);
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- if (local->hw.conf.beacon_int == 0)
- local->hw.conf.beacon_int = 100;
-
- capability = WLAN_CAPABILITY_IBSS;
-
- if (sdata->default_key)
- capability |= WLAN_CAPABILITY_PRIVACY;
- else
- sdata->drop_unencrypted = 0;
-
- pos = supp_rates;
- for (i = 0; i < sband->n_bitrates; i++) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
-
- return __ieee80211_sta_join_ibss(sdata, ifsta,
- bssid, local->hw.conf.beacon_int,
- local->hw.conf.channel->center_freq,
- sband->n_bitrates, supp_rates,
- capability);
-}
-
-
-static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_bss *bss;
- int active_ibss;
-
- if (ifsta->ssid_len == 0)
- return -EINVAL;
-
- active_ibss = ieee80211_sta_active_ibss(sdata);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
- sdata->dev->name, active_ibss);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- if (active_ibss)
- return 0;
-
- if (ifsta->flags & IEEE80211_STA_BSSID_SET)
- bss = ieee80211_rx_bss_get(local, ifsta->bssid, 0,
- ifsta->ssid, ifsta->ssid_len);
- else
- bss = (void *)cfg80211_get_ibss(local->hw.wiphy,
- NULL,
- ifsta->ssid, ifsta->ssid_len);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- if (bss)
- printk(KERN_DEBUG " sta_find_ibss: selected %pM current "
- "%pM\n", bss->cbss.bssid, ifsta->bssid);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- if (bss &&
- (!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) ||
- memcmp(ifsta->bssid, bss->cbss.bssid, ETH_ALEN))) {
- int ret;
-
- printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
- " based on configured SSID\n",
- sdata->dev->name, bss->cbss.bssid);
-
- ret = ieee80211_sta_join_ibss(sdata, ifsta, bss);
- ieee80211_rx_bss_put(local, bss);
- return ret;
- } else if (bss)
- ieee80211_rx_bss_put(local, bss);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " did not try to join ibss\n");
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- /* Selected IBSS not found in current scan results - try to scan */
- if (ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(sdata)) {
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_IBSS_MERGE_INTERVAL);
- } else if (time_after(jiffies, local->last_scan_completed +
- IEEE80211_SCAN_INTERVAL)) {
- printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
- "join\n", sdata->dev->name);
-
- /* XXX maybe racy? */
- if (local->scan_req)
- return -EBUSY;
-
- memcpy(local->int_scan_req.ssids[0].ssid,
- ifsta->ssid, IEEE80211_MAX_SSID_LEN);
- local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
- return ieee80211_request_scan(sdata, &local->int_scan_req);
- } else if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED) {
- int interval = IEEE80211_SCAN_INTERVAL;
-
- if (time_after(jiffies, ifsta->ibss_join_req +
- IEEE80211_IBSS_JOIN_TIMEOUT)) {
- if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
- (!(local->oper_channel->flags &
- IEEE80211_CHAN_NO_IBSS)))
- return ieee80211_sta_create_ibss(sdata, ifsta);
- if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
- printk(KERN_DEBUG "%s: IBSS not allowed on"
- " %d MHz\n", sdata->dev->name,
- local->hw.conf.channel->center_freq);
- }
-
- /* No IBSS found - decrease scan interval and continue
- * scanning. */
- interval = IEEE80211_SCAN_INTERVAL_SLOW;
- }
-
- ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
- mod_timer(&ifsta->timer, jiffies + interval);
- return 0;
- }
-
- return 0;
-}
-
-
-static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta)
+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 = ifsta->bssid, *ssid = ifsta->ssid;
- u8 ssid_len = ifsta->ssid_len;
+ 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 (ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+ 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;
capa_val |= WLAN_CAPABILITY_PRIVACY;
}
- if (ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
+ if (ifmgd->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
chan = NULL;
- if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
+ if (ifmgd->flags & IEEE80211_STA_AUTO_BSSID_SEL)
bssid = NULL;
- if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) {
+ if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL) {
ssid = NULL;
ssid_len = 0;
}
if (bss) {
ieee80211_set_freq(sdata, bss->cbss.channel->center_freq);
- if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
+ 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.sta.mfp == IEEE80211_MFP_REQUIRED)
- sdata->u.sta.flags |= IEEE80211_STA_MFP_ENABLED;
+ if (sdata->u.mgd.mfp == IEEE80211_MFP_REQUIRED)
+ sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
else
- sdata->u.sta.flags &= ~IEEE80211_STA_MFP_ENABLED;
+ 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))
- ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+ ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
else
- ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+ ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
ieee80211_rx_bss_put(local, bss);
- ieee80211_sta_reset_auth(sdata, ifsta);
+ ieee80211_sta_reset_auth(sdata);
return 0;
} else {
- if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
- ifsta->assoc_scan_tries++;
- /* XXX maybe racy? */
- if (local->scan_req)
- return -1;
- memcpy(local->int_scan_req.ssids[0].ssid,
- ifsta->ssid, IEEE80211_MAX_SSID_LEN);
- if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
- local->int_scan_req.ssids[0].ssid_len = 0;
- else
- local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
- ieee80211_start_scan(sdata, &local->int_scan_req);
- ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ if (ifmgd->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
+ u8 ssid_len = 0;
+
+ if (!(ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL))
+ ssid_len = ifmgd->ssid_len;
+
+ 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 {
- ifsta->assoc_scan_tries = 0;
- ifsta->state = IEEE80211_STA_MLME_DISABLED;
+ 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 =
- container_of(work, struct ieee80211_sub_if_data, u.sta.work);
+ container_of(work, struct ieee80211_sub_if_data, u.mgd.work);
struct ieee80211_local *local = sdata->local;
- struct ieee80211_if_sta *ifsta;
+ struct ieee80211_if_managed *ifmgd;
struct sk_buff *skb;
if (!netif_running(sdata->dev))
if (local->sw_scanning || local->hw_scanning)
return;
- if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION &&
- sdata->vif.type != NL80211_IFTYPE_ADHOC))
+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
- ifsta = &sdata->u.sta;
+ ifmgd = &sdata->u.mgd;
- while ((skb = skb_dequeue(&ifsta->skb_queue)))
+ while ((skb = skb_dequeue(&ifmgd->skb_queue)))
ieee80211_sta_rx_queued_mgmt(sdata, skb);
- if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
- ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
- ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
- test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
- ieee80211_start_scan(sdata, local->scan_req);
+ 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;
}
- if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
- if (ieee80211_sta_config_auth(sdata, ifsta))
+ if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request)) {
+ if (ieee80211_sta_config_auth(sdata))
return;
- clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
+ clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
+ } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request))
return;
- switch (ifsta->state) {
+ ieee80211_recalc_idle(local);
+
+ switch (ifmgd->state) {
case IEEE80211_STA_MLME_DISABLED:
break;
case IEEE80211_STA_MLME_DIRECT_PROBE:
- ieee80211_direct_probe(sdata, ifsta);
+ ieee80211_direct_probe(sdata);
break;
case IEEE80211_STA_MLME_AUTHENTICATE:
- ieee80211_authenticate(sdata, ifsta);
+ ieee80211_authenticate(sdata);
break;
case IEEE80211_STA_MLME_ASSOCIATE:
- ieee80211_associate(sdata, ifsta);
+ ieee80211_associate(sdata);
break;
case IEEE80211_STA_MLME_ASSOCIATED:
- ieee80211_associated(sdata, ifsta);
- break;
- case IEEE80211_STA_MLME_IBSS_SEARCH:
- ieee80211_sta_find_ibss(sdata, ifsta);
- break;
- case IEEE80211_STA_MLME_IBSS_JOINED:
- ieee80211_sta_merge_ibss(sdata, ifsta);
+ ieee80211_associated(sdata);
break;
default:
WARN_ON(1);
break;
}
- if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+ if (ieee80211_privacy_mismatch(sdata)) {
printk(KERN_DEBUG "%s: privacy configuration mismatch and "
"mixed-cell disabled - disassociate\n", sdata->dev->name);
- ieee80211_set_disassoc(sdata, ifsta, false, true,
+ ieee80211_set_disassoc(sdata, false, true,
WLAN_REASON_UNSPECIFIED);
}
}
static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
{
- if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ /*
+ * Need to update last_beacon to avoid beacon loss
+ * test to trigger.
+ */
+ sdata->u.mgd.last_beacon = jiffies;
+
+
queue_work(sdata->local->hw.workqueue,
- &sdata->u.sta.work);
+ &sdata->u.mgd.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);
- INIT_WORK(&ifsta->chswitch_work, ieee80211_chswitch_work);
- setup_timer(&ifsta->timer, ieee80211_sta_timer,
+ struct ieee80211_if_managed *ifmgd;
+ u32 hw_flags;
+
+ ifmgd = &sdata->u.mgd;
+ INIT_WORK(&ifmgd->work, ieee80211_sta_work);
+ INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
+ INIT_WORK(&ifmgd->beacon_loss_work, ieee80211_beacon_loss_work);
+ setup_timer(&ifmgd->timer, ieee80211_sta_timer,
(unsigned long) sdata);
- setup_timer(&ifsta->chswitch_timer, ieee80211_chswitch_timer,
+ setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
- skb_queue_head_init(&ifsta->skb_queue);
+ skb_queue_head_init(&ifmgd->skb_queue);
- ifsta->capab = WLAN_CAPABILITY_ESS;
- ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
+ ifmgd->capab = WLAN_CAPABILITY_ESS;
+ ifmgd->auth_algs = IEEE80211_AUTH_ALG_OPEN |
IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
+ ifmgd->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;
-}
+ if (sdata->local->hw.queues >= 4)
+ ifmgd->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,
- u8 *bssid,u8 *addr, u32 supp_rates)
-{
- struct ieee80211_local *local = sdata->local;
- struct sta_info *sta;
- int band = local->hw.conf.channel->band;
+ hw_flags = sdata->local->hw.flags;
- /* 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 %pM\n", sdata->dev->name, addr);
- }
- return NULL;
+ if (hw_flags & IEEE80211_HW_SUPPORTS_PS) {
+ ifmgd->powersave = CONFIG_MAC80211_DEFAULT_PS_VALUE;
+ sdata->local->hw.conf.dynamic_ps_timeout = 500;
}
-
- if (compare_ether_addr(bssid, sdata->u.sta.bssid))
- return NULL;
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Adding new IBSS station %pM (dev=%s)\n",
- wiphy_name(local->hw.wiphy), 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->sta.supp_rates[band] = supp_rates |
- ieee80211_mandatory_rates(local, band);
-
- rate_control_rate_init(sta);
-
- 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)
+void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
- if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
- if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
+ if ((ifmgd->flags & (IEEE80211_STA_BSSID_SET |
IEEE80211_STA_AUTO_BSSID_SEL)) &&
- (ifsta->flags & (IEEE80211_STA_SSID_SET |
+ (ifmgd->flags & (IEEE80211_STA_SSID_SET |
IEEE80211_STA_AUTO_SSID_SEL))) {
- if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED)
- ieee80211_set_disassoc(sdata, ifsta, true, true,
+ if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)
+ ieee80211_set_disassoc(sdata, true, true,
WLAN_REASON_DEAUTH_LEAVING);
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
+ 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);
}
}
-int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
+int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_if_sta *ifsta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
+ if (ifmgd->ssid_len)
+ ifmgd->flags |= IEEE80211_STA_SSID_SET;
+ else
+ ifmgd->flags &= ~IEEE80211_STA_SSID_SET;
- ifsta = &sdata->u.sta;
+ return 0;
+}
- 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;
- }
+int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
+{
+ struct ieee80211_if_managed *ifmgd;
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ if (len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
- if (len)
- ifsta->flags |= IEEE80211_STA_SSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_SSID_SET;
+ ifmgd = &sdata->u.mgd;
- if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- ifsta->ibss_join_req = jiffies;
- ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
- return ieee80211_sta_find_ibss(sdata, ifsta);
+ if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) {
+ /*
+ * 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;
}
- return 0;
+ return ieee80211_sta_commit(sdata);
}
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;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ memcpy(ssid, ifmgd->ssid, ifmgd->ssid_len);
+ *len = ifmgd->ssid_len;
return 0;
}
int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
{
- struct ieee80211_if_sta *ifsta;
-
- ifsta = &sdata->u.sta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (is_valid_ether_addr(bssid)) {
- memcpy(ifsta->bssid, bssid, ETH_ALEN);
- ifsta->flags |= IEEE80211_STA_BSSID_SET;
+ memcpy(ifmgd->bssid, bssid, ETH_ALEN);
+ ifmgd->flags |= IEEE80211_STA_BSSID_SET;
} else {
- memset(ifsta->bssid, 0, ETH_ALEN);
- ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
+ memset(ifmgd->bssid, 0, ETH_ALEN);
+ ifmgd->flags &= ~IEEE80211_STA_BSSID_SET;
}
- if (netif_running(sdata->dev)) {
- if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
- printk(KERN_DEBUG "%s: Failed to config new BSSID to "
- "the low-level driver\n", sdata->dev->name);
- }
- }
+ if (netif_running(sdata->dev))
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
- return ieee80211_sta_set_ssid(sdata, ifsta->ssid, ifsta->ssid_len);
+ return ieee80211_sta_commit(sdata);
}
-int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
+int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
+ const char *ie, size_t len)
{
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- kfree(ifsta->extra_ie);
+ kfree(ifmgd->extra_ie);
if (len == 0) {
- ifsta->extra_ie = NULL;
- ifsta->extra_ie_len = 0;
+ ifmgd->extra_ie = NULL;
+ ifmgd->extra_ie_len = 0;
return 0;
}
- ifsta->extra_ie = kmalloc(len, GFP_KERNEL);
- if (!ifsta->extra_ie) {
- ifsta->extra_ie_len = 0;
+ ifmgd->extra_ie = kmalloc(len, GFP_KERNEL);
+ if (!ifmgd->extra_ie) {
+ ifmgd->extra_ie_len = 0;
return -ENOMEM;
}
- memcpy(ifsta->extra_ie, ie, len);
- ifsta->extra_ie_len = len;
+ 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)
{
- 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 != NL80211_IFTYPE_STATION &&
- sdata->vif.type != NL80211_IFTYPE_ADHOC)
- return -EINVAL;
-
- ieee80211_set_disassoc(sdata, ifsta, true, true, reason);
+ ieee80211_set_disassoc(sdata, 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;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n",
sdata->dev->name, reason);
- if (sdata->vif.type != NL80211_IFTYPE_STATION)
- return -EINVAL;
-
- if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
- return -1;
+ if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED))
+ return -ENOLINK;
- ieee80211_set_disassoc(sdata, ifsta, false, true, reason);
+ ieee80211_set_disassoc(sdata, false, true, reason);
return 0;
}
void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata = local->scan_sdata;
- struct ieee80211_if_sta *ifsta;
-
- if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- ifsta = &sdata->u.sta;
- if ((!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) ||
- !ieee80211_sta_active_ibss(sdata))
- ieee80211_sta_find_ibss(sdata, ifsta);
- }
/* Restart STA timers */
rcu_read_lock();
rcu_read_unlock();
}
-void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local,
- dynamic_ps_disable_work);
-
- if (local->hw.conf.flags & IEEE80211_CONF_PS) {
- local->hw.conf.flags &= ~IEEE80211_CONF_PS;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
- }
-
- ieee80211_wake_queues_by_reason(&local->hw,
- IEEE80211_QUEUE_STOP_REASON_PS);
-}
-
-void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
+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(work, struct ieee80211_local,
- dynamic_ps_enable_work);
- struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-
- if (local->hw.conf.flags & IEEE80211_CONF_PS)
- return;
-
- if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
- ieee80211_send_nullfunc(local, sdata, 1);
+ container_of(nb, struct ieee80211_local,
+ network_latency_notifier);
- local->hw.conf.flags |= IEEE80211_CONF_PS;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-}
+ mutex_lock(&local->iflist_mtx);
+ ieee80211_recalc_ps(local, latency_usec);
+ mutex_unlock(&local->iflist_mtx);
-void ieee80211_dynamic_ps_timer(unsigned long data)
-{
- struct ieee80211_local *local = (void *) data;
-
- queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
+ return 0;
}