mac80211: convert to cfg80211 IBSS API
This converts mac80211 to the new cfg80211 IBSS API, the
wext handling functions are called where appropriate.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index daf7528..14013dc 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1283,6 +1283,21 @@
return ieee80211_sta_disassociate(sdata, req->reason_code);
}
+static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_ibss_params *params)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ return ieee80211_ibss_join(sdata, params);
+}
+
+static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ return ieee80211_ibss_leave(sdata);
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -1319,4 +1334,6 @@
.assoc = ieee80211_assoc,
.deauth = ieee80211_deauth,
.disassoc = ieee80211_disassoc,
+ .join_ibss = ieee80211_join_ibss,
+ .leave_ibss = ieee80211_leave_ibss,
};
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 3201e1f..4f7a545 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -59,74 +59,59 @@
sdata->u.ibss.bssid, 0);
}
-static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
- const u8 *bssid, const int beacon_int,
- const int freq,
- const size_t supp_rates_len,
- const u8 *supp_rates,
- const u16 capability, u64 tsf)
+static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+ const u8 *bssid, const int beacon_int,
+ struct ieee80211_channel *chan,
+ const size_t supp_rates_len,
+ const u8 *supp_rates,
+ const u16 capability, u64 tsf)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
- int res = 0, rates, i, j;
+ int 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 ((ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) &&
- memcmp(ifibss->bssid, bssid, ETH_ALEN) == 0)
- return res;
+ skb = ifibss->skb;
+ rcu_assign_pointer(ifibss->presp, NULL);
+ synchronize_rcu();
+ skb->data = skb->head;
+ skb->len = 0;
+ skb_reset_tail_pointer(skb);
+ skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "response\n", sdata->dev->name);
- return -ENOMEM;
- }
-
- if (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) {
- /* Remove possible STA entries from other IBSS networks. */
- sta_info_flush_delayed(sdata);
- }
+ if (memcmp(ifibss->bssid, bssid, ETH_ALEN))
+ sta_info_flush(sdata->local, sdata);
memcpy(ifibss->bssid, bssid, ETH_ALEN);
- res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
- if (res)
- return res;
local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
- sdata->drop_unencrypted = capability &
- WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+ sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
- res = ieee80211_set_freq(sdata, freq);
+ ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
- if (res)
- return res;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ local->oper_channel = chan;
+ local->oper_channel_type = NL80211_CHAN_NO_HT;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+ sband = local->hw.wiphy->bands[chan->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));
+ mgmt = (void *) 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, ifibss->bssid, ETH_ALEN);
- mgmt->u.beacon.beacon_int =
- cpu_to_le16(local->hw.conf.beacon_int);
+ mgmt->u.beacon.beacon_int = cpu_to_le16(local->hw.conf.beacon_int);
mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
mgmt->u.beacon.capab_info = cpu_to_le16(capability);
@@ -147,7 +132,7 @@
pos = skb_put(skb, 2 + 1);
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
- *pos++ = ieee80211_frequency_to_channel(freq);
+ *pos++ = ieee80211_frequency_to_channel(chan->center_freq);
}
pos = skb_put(skb, 2 + 2);
@@ -165,12 +150,15 @@
memcpy(pos, &supp_rates[8], rates);
}
- ifibss->probe_resp = skb;
+ if (ifibss->ie_len)
+ memcpy(skb_put(skb, ifibss->ie_len),
+ ifibss->ie, ifibss->ie_len);
+
+ rcu_assign_pointer(ifibss->presp, 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;
@@ -181,27 +169,24 @@
ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
- ifibss->flags |= IEEE80211_IBSS_PREV_BSSID_SET;
ifibss->state = IEEE80211_IBSS_MLME_JOINED;
- mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+ mod_timer(&ifibss->timer,
+ round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
- memset(&wrqu, 0, sizeof(wrqu));
- memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
- wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
-
- return res;
+ cfg80211_inform_bss_frame(local->hw.wiphy, local->hw.conf.channel,
+ mgmt, skb->len, 0, GFP_KERNEL);
+ cfg80211_ibss_joined(sdata->dev, ifibss->bssid, GFP_KERNEL);
}
-static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_bss *bss)
+static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_bss *bss)
{
- return __ieee80211_sta_join_ibss(sdata,
- bss->cbss.bssid,
- bss->cbss.beacon_interval,
- bss->cbss.channel->center_freq,
- bss->supp_rates_len, bss->supp_rates,
- bss->cbss.capability,
- bss->cbss.tsf);
+ __ieee80211_sta_join_ibss(sdata, bss->cbss.bssid,
+ bss->cbss.beacon_interval,
+ bss->cbss.channel,
+ bss->supp_rates_len, bss->supp_rates,
+ bss->cbss.capability,
+ bss->cbss.tsf);
}
static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
@@ -277,7 +262,7 @@
goto put_bss;
/* we use a fixed BSSID */
- if (sdata->u.ibss.flags & IEEE80211_IBSS_BSSID_SET)
+ if (sdata->u.ibss.bssid)
goto put_bss;
/* not an IBSS */
@@ -369,13 +354,14 @@
struct sta_info *sta;
int band = local->hw.conf.channel->band;
- /* TODO: Could consider removing the least recently used entry and
- * allow new one to be added. */
+ /*
+ * XXX: 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);
- }
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: No room for a new IBSS STA entry %pM\n",
+ sdata->dev->name, addr);
return NULL;
}
@@ -432,14 +418,15 @@
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
- mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+ mod_timer(&ifibss->timer,
+ round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
+
if (ieee80211_sta_active_ibss(sdata))
return;
- if ((ifibss->flags & IEEE80211_IBSS_BSSID_SET) &&
- (!(ifibss->flags & IEEE80211_IBSS_AUTO_CHANNEL_SEL)))
+ if (ifibss->fixed_channel)
return;
printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
@@ -455,7 +442,7 @@
ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
}
-static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
@@ -466,7 +453,7 @@
u16 capability;
int i;
- if (ifibss->flags & IEEE80211_IBSS_BSSID_SET) {
+ if (ifibss->fixed_bssid) {
memcpy(bssid, ifibss->bssid, ETH_ALEN);
} else {
/* Generate random, not broadcast, locally administered BSSID. Mix in
@@ -482,7 +469,7 @@
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];
+ sband = local->hw.wiphy->bands[ifibss->channel->band];
if (local->hw.conf.beacon_int == 0)
local->hw.conf.beacon_int = 100;
@@ -500,24 +487,20 @@
*pos++ = (u8) (rate / 5);
}
- return __ieee80211_sta_join_ibss(sdata,
- bssid, local->hw.conf.beacon_int,
- local->hw.conf.channel->center_freq,
- sband->n_bitrates, supp_rates,
- capability, 0);
+ __ieee80211_sta_join_ibss(sdata, bssid, local->hw.conf.beacon_int,
+ ifibss->channel, sband->n_bitrates,
+ supp_rates, capability, 0);
}
-static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss *bss;
+ struct ieee80211_channel *chan = NULL;
const u8 *bssid = NULL;
int active_ibss;
- if (ifibss->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",
@@ -525,11 +508,15 @@
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
if (active_ibss)
- return 0;
+ return;
- if (ifibss->flags & IEEE80211_IBSS_BSSID_SET)
+ if (ifibss->fixed_bssid)
bssid = ifibss->bssid;
- bss = (void *)cfg80211_get_bss(local->hw.wiphy, NULL, bssid,
+ if (ifibss->fixed_channel)
+ chan = ifibss->channel;
+ if (!is_zero_ether_addr(ifibss->bssid))
+ bssid = ifibss->bssid;
+ bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, bssid,
ifibss->ssid, ifibss->ssid_len,
WLAN_CAPABILITY_IBSS,
WLAN_CAPABILITY_IBSS);
@@ -540,18 +527,14 @@
"%pM\n", bss->cbss.bssid, ifibss->bssid);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- if (bss &&
- (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) ||
- memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN))) {
- int ret;
-
+ if (bss && memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN)) {
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, bss);
+ ieee80211_sta_join_ibss(sdata, bss);
ieee80211_rx_bss_put(local, bss);
- return ret;
+ return;
} else if (bss)
ieee80211_rx_bss_put(local, bss);
@@ -562,29 +545,31 @@
/* Selected IBSS not found in current scan results - try to scan */
if (ifibss->state == IEEE80211_IBSS_MLME_JOINED &&
!ieee80211_sta_active_ibss(sdata)) {
- mod_timer(&ifibss->timer, jiffies +
- IEEE80211_IBSS_MERGE_INTERVAL);
- } else if (time_after(jiffies, local->last_scan_completed +
+ mod_timer(&ifibss->timer,
+ round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
+ } else if (time_after(jiffies, ifibss->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;
+ return;
memcpy(local->int_scan_req.ssids[0].ssid,
ifibss->ssid, IEEE80211_MAX_SSID_LEN);
- local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
- return ieee80211_request_scan(sdata, &local->int_scan_req);
+ local->int_scan_req.ssids[0].ssid_len =
+ ifibss->ssid_len;
+ ieee80211_request_scan(sdata, &local->int_scan_req);
} else if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) {
int interval = IEEE80211_SCAN_INTERVAL;
if (time_after(jiffies, ifibss->ibss_join_req +
IEEE80211_IBSS_JOIN_TIMEOUT)) {
- if (!(local->oper_channel->flags &
- IEEE80211_CHAN_NO_IBSS))
- return ieee80211_sta_create_ibss(sdata);
+ if (!(local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)) {
+ ieee80211_sta_create_ibss(sdata);
+ return;
+ }
printk(KERN_DEBUG "%s: IBSS not allowed on"
" %d MHz\n", sdata->dev->name,
local->hw.conf.channel->center_freq);
@@ -595,11 +580,9 @@
}
ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
- mod_timer(&ifibss->timer, jiffies + interval);
- return 0;
+ mod_timer(&ifibss->timer,
+ round_jiffies(jiffies + interval));
}
-
- return 0;
}
static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
@@ -614,7 +597,7 @@
u8 *pos, *end;
if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
- len < 24 + 2 || !ifibss->probe_resp)
+ len < 24 + 2 || !ifibss->presp)
return;
if (local->ops->tx_last_beacon)
@@ -649,13 +632,13 @@
}
if (pos[1] != 0 &&
(pos[1] != ifibss->ssid_len ||
- memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len) != 0)) {
+ !memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) {
/* Ignore ProbeReq for foreign SSID */
return;
}
/* Reply with ProbeResp */
- skb = skb_copy(ifibss->probe_resp, GFP_KERNEL);
+ skb = skb_copy(ifibss->presp, GFP_KERNEL);
if (!skb)
return;
@@ -794,89 +777,21 @@
setup_timer(&ifibss->timer, ieee80211_ibss_timer,
(unsigned long) sdata);
skb_queue_head_init(&ifibss->skb_queue);
-
- ifibss->flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
- IEEE80211_IBSS_AUTO_CHANNEL_SEL;
-}
-
-int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
- ifibss->flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
-
- if (ifibss->ssid_len)
- ifibss->flags |= IEEE80211_IBSS_SSID_SET;
- else
- ifibss->flags &= ~IEEE80211_IBSS_SSID_SET;
-
- ifibss->ibss_join_req = jiffies;
- ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
- set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
-
- return 0;
-}
-
-int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
-{
- struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- if (ifibss->ssid_len != len || memcmp(ifibss->ssid, ssid, len) != 0) {
- memset(ifibss->ssid, 0, sizeof(ifibss->ssid));
- memcpy(ifibss->ssid, ssid, len);
- ifibss->ssid_len = len;
- }
-
- return ieee80211_ibss_commit(sdata);
-}
-
-int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
-{
- struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
- memcpy(ssid, ifibss->ssid, ifibss->ssid_len);
- *len = ifibss->ssid_len;
-
- return 0;
-}
-
-int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
-{
- struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
- if (is_valid_ether_addr(bssid)) {
- memcpy(ifibss->bssid, bssid, ETH_ALEN);
- ifibss->flags |= IEEE80211_IBSS_BSSID_SET;
- } else {
- memset(ifibss->bssid, 0, ETH_ALEN);
- ifibss->flags &= ~IEEE80211_IBSS_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);
- }
- }
-
- return ieee80211_ibss_commit(sdata);
}
/* scan finished notification */
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
{
- struct ieee80211_sub_if_data *sdata = local->scan_sdata;
- struct ieee80211_if_ibss *ifibss;
+ struct ieee80211_sub_if_data *sdata;
- if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- ifibss = &sdata->u.ibss;
- if ((!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) ||
- !ieee80211_sta_active_ibss(sdata))
- ieee80211_sta_find_ibss(sdata);
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
+ continue;
+ sdata->u.ibss.last_scan_completed = jiffies;
+ ieee80211_sta_find_ibss(sdata);
}
+ rcu_read_unlock();
}
ieee80211_rx_result
@@ -906,3 +821,71 @@
return RX_DROP_MONITOR;
}
+
+int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_ibss_params *params)
+{
+ struct sk_buff *skb;
+
+ memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
+ sdata->u.ibss.ssid_len = params->ssid_len;
+
+ if (params->bssid) {
+ memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
+ sdata->u.ibss.fixed_bssid = true;
+ } else
+ sdata->u.ibss.fixed_bssid = false;
+
+ sdata->u.ibss.channel = params->channel;
+ sdata->u.ibss.fixed_channel = params->channel_fixed;
+
+ if (params->ie) {
+ sdata->u.ibss.ie = kmemdup(params->ie, params->ie_len,
+ GFP_KERNEL);
+ if (sdata->u.ibss.ie)
+ sdata->u.ibss.ie_len = params->ie_len;
+ }
+
+ skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
+ 36 /* bitrates */ +
+ 34 /* SSID */ +
+ 3 /* DS params */ +
+ 4 /* IBSS params */ +
+ params->ie_len);
+ if (!skb)
+ return -ENOMEM;
+
+ sdata->u.ibss.skb = skb;
+ sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
+ sdata->u.ibss.ibss_join_req = jiffies;
+
+ set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+ queue_work(sdata->local->hw.workqueue, &sdata->u.ibss.work);
+
+ return 0;
+}
+
+int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
+{
+ struct sk_buff *skb;
+
+ del_timer_sync(&sdata->u.ibss.timer);
+ clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+ cancel_work_sync(&sdata->u.ibss.work);
+ clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+
+ sta_info_flush(sdata->local, sdata);
+
+ /* remove beacon */
+ kfree(sdata->u.ibss.ie);
+ skb = sdata->u.ibss.presp;
+ rcu_assign_pointer(sdata->u.ibss.presp, NULL);
+ ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
+ synchronize_rcu();
+ kfree_skb(skb);
+
+ skb_queue_purge(&sdata->u.ibss.skb_queue);
+ memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
+
+ return 0;
+}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 38c9806..e770c1e8 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -323,14 +323,6 @@
size_t sme_auth_ie_len;
};
-enum ieee80211_ibss_flags {
- IEEE80211_IBSS_AUTO_CHANNEL_SEL = BIT(0),
- IEEE80211_IBSS_AUTO_BSSID_SEL = BIT(1),
- IEEE80211_IBSS_BSSID_SET = BIT(2),
- IEEE80211_IBSS_PREV_BSSID_SET = BIT(3),
- IEEE80211_IBSS_SSID_SET = BIT(4),
-};
-
enum ieee80211_ibss_request {
IEEE80211_IBSS_REQ_RUN = 0,
};
@@ -341,17 +333,20 @@
struct sk_buff_head skb_queue;
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- u8 ssid_len;
-
- u32 flags;
+ unsigned long request;
+ unsigned long last_scan_completed;
+ bool fixed_bssid;
+ bool fixed_channel;
u8 bssid[ETH_ALEN];
-
- unsigned long request;
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 ssid_len, ie_len;
+ u8 *ie;
+ struct ieee80211_channel *channel;
unsigned long ibss_join_req;
- struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
+ /* probe response/beacon for IBSS */
+ struct sk_buff *presp, *skb;
enum {
IEEE80211_IBSS_MLME_SEARCH,
@@ -630,8 +625,6 @@
spinlock_t sta_lock;
unsigned long num_sta;
struct list_head sta_list;
- struct list_head sta_flush_list;
- struct work_struct sta_flush_work;
struct sta_info *sta_hash[STA_HASH_SIZE];
struct timer_list sta_cleanup;
@@ -681,7 +674,6 @@
int scan_ies_len;
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
- unsigned long last_scan_completed;
struct delayed_work scan_work;
struct ieee80211_sub_if_data *scan_sdata;
enum nl80211_channel_type oper_channel_type;
@@ -946,10 +938,6 @@
unsigned long data, void *dummy);
/* IBSS code */
-int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata);
-int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
-int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
-int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
ieee80211_rx_result
@@ -957,6 +945,9 @@
struct ieee80211_rx_status *rx_status);
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid, u8 *addr, u32 supp_rates);
+int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_ibss_params *params);
+int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
/* scan/BSS handling */
void ieee80211_scan_work(struct work_struct *work);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 5d60deb..5242597 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -235,11 +235,7 @@
netif_addr_unlock_bh(local->mdev);
break;
case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_ADHOC:
- if (sdata->vif.type == NL80211_IFTYPE_STATION)
- sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- else
- sdata->u.ibss.flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
+ sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
/* fall through */
default:
conf.vif = &sdata->vif;
@@ -327,8 +323,6 @@
*/
if (sdata->vif.type == NL80211_IFTYPE_STATION)
queue_work(local->hw.workqueue, &sdata->u.mgd.work);
- else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- queue_work(local->hw.workqueue, &sdata->u.ibss.work);
netif_tx_start_all_queues(dev);
@@ -499,7 +493,6 @@
/* fall through */
case NL80211_IFTYPE_ADHOC:
if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
del_timer_sync(&sdata->u.ibss.timer);
cancel_work_sync(&sdata->u.ibss.work);
synchronize_rcu();
@@ -653,7 +646,8 @@
mesh_rmc_free(sdata);
break;
case NL80211_IFTYPE_ADHOC:
- kfree_skb(sdata->u.ibss.probe_resp);
+ if (WARN_ON(sdata->u.ibss.presp))
+ kfree_skb(sdata->u.ibss.presp);
break;
case NL80211_IFTYPE_STATION:
kfree(sdata->u.mgd.extra_ie);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 049ce86..d26fc39 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -209,7 +209,7 @@
!!rcu_dereference(sdata->u.ap.beacon);
break;
case NL80211_IFTYPE_ADHOC:
- conf.enable_beacon = !!sdata->u.ibss.probe_resp;
+ conf.enable_beacon = !!sdata->u.ibss.presp;
break;
case NL80211_IFTYPE_MESH_POINT:
conf.enable_beacon = true;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 20df861..f25b07f 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -295,8 +295,6 @@
cfg80211_scan_done(local->scan_req, aborted);
local->scan_req = NULL;
- local->last_scan_completed = jiffies;
-
if (local->hw_scanning) {
local->hw_scanning = false;
/*
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index c5f14e6..654a8e9 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -686,41 +686,10 @@
}
#endif
-static void __ieee80211_run_pending_flush(struct ieee80211_local *local)
-{
- struct sta_info *sta;
- unsigned long flags;
-
- ASSERT_RTNL();
-
- spin_lock_irqsave(&local->sta_lock, flags);
- while (!list_empty(&local->sta_flush_list)) {
- sta = list_first_entry(&local->sta_flush_list,
- struct sta_info, list);
- list_del(&sta->list);
- spin_unlock_irqrestore(&local->sta_lock, flags);
- sta_info_destroy(sta);
- spin_lock_irqsave(&local->sta_lock, flags);
- }
- spin_unlock_irqrestore(&local->sta_lock, flags);
-}
-
-static void ieee80211_sta_flush_work(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, sta_flush_work);
-
- rtnl_lock();
- __ieee80211_run_pending_flush(local);
- rtnl_unlock();
-}
-
void sta_info_init(struct ieee80211_local *local)
{
spin_lock_init(&local->sta_lock);
INIT_LIST_HEAD(&local->sta_list);
- INIT_LIST_HEAD(&local->sta_flush_list);
- INIT_WORK(&local->sta_flush_work, ieee80211_sta_flush_work);
setup_timer(&local->sta_cleanup, sta_info_cleanup,
(unsigned long)local);
@@ -741,7 +710,6 @@
void sta_info_stop(struct ieee80211_local *local)
{
del_timer(&local->sta_cleanup);
- cancel_work_sync(&local->sta_flush_work);
#ifdef CONFIG_MAC80211_DEBUGFS
/*
* Make sure the debugfs adding work isn't pending after this
@@ -752,10 +720,7 @@
cancel_work_sync(&local->sta_debugfs_add);
#endif
- rtnl_lock();
sta_info_flush(local, NULL);
- __ieee80211_run_pending_flush(local);
- rtnl_unlock();
}
/**
@@ -767,7 +732,7 @@
* @sdata: matching rule for the net device (sta->dev) or %NULL to match all STAs
*/
int sta_info_flush(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata)
+ struct ieee80211_sub_if_data *sdata)
{
struct sta_info *sta, *tmp;
LIST_HEAD(tmp_list);
@@ -775,7 +740,6 @@
unsigned long flags;
might_sleep();
- ASSERT_RTNL();
spin_lock_irqsave(&local->sta_lock, flags);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
@@ -795,39 +759,6 @@
return ret;
}
-/**
- * sta_info_flush_delayed - flush matching STA entries from the STA table
- *
- * This function unlinks all stations for a given interface and queues
- * them for freeing. Note that the workqueue function scheduled here has
- * to run before any new keys can be added to the system to avoid set_key()
- * callback ordering issues.
- *
- * @sdata: the interface
- */
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_local *local = sdata->local;
- struct sta_info *sta, *tmp;
- unsigned long flags;
- bool work = false;
-
- spin_lock_irqsave(&local->sta_lock, flags);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
- if (sdata == sta->sdata) {
- __sta_info_unlink(&sta);
- if (sta) {
- list_add_tail(&sta->list,
- &local->sta_flush_list);
- work = true;
- }
- }
- }
- if (work)
- schedule_work(&local->sta_flush_work);
- spin_unlock_irqrestore(&local->sta_lock, flags);
-}
-
void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
unsigned long exp_time)
{
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 5534d48..31a8990 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -442,8 +442,7 @@
int sta_info_start(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
int sta_info_flush(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata);
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata);
+ struct ieee80211_sub_if_data *sdata);
void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
unsigned long exp_time);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index f336cc7..c53d77d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2102,18 +2102,18 @@
} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_hdr *hdr;
+ struct sk_buff *presp = rcu_dereference(ifibss->presp);
- if (!ifibss->probe_resp)
+ if (!presp)
goto out;
- skb = skb_copy(ifibss->probe_resp, GFP_ATOMIC);
+ skb = skb_copy(presp, GFP_ATOMIC);
if (!skb)
goto out;
hdr = (struct ieee80211_hdr *) skb->data;
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_BEACON);
-
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
struct ieee80211_mgmt *mgmt;
u8 *pos;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 896704c..eb63fc1 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -149,17 +149,14 @@
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+ return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
else if (sdata->vif.type == NL80211_IFTYPE_STATION)
sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
if (freq->e == 0) {
if (freq->m < 0) {
- if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- sdata->u.ibss.flags |=
- IEEE80211_IBSS_AUTO_CHANNEL_SEL;
- else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
sdata->u.mgd.flags |=
IEEE80211_STA_AUTO_CHANNEL_SEL;
return 0;
@@ -183,6 +180,10 @@
struct iw_freq *freq, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
freq->m = local->hw.conf.channel->center_freq;
freq->e = 6;
@@ -195,15 +196,17 @@
struct iw_request_info *info,
struct iw_point *data, char *ssid)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
size_t len = data->length;
int ret;
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
+
/* iwconfig uses nul termination in SSID.. */
if (len > 0 && ssid[len - 1] == '\0')
len--;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
if (data->flags)
sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
@@ -217,8 +220,7 @@
sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
ieee80211_sta_req_auth(sdata);
return 0;
- } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- return ieee80211_ibss_set_ssid(sdata, ssid, len);
+ }
return -EOPNOTSUPP;
}
@@ -229,9 +231,13 @@
struct iw_point *data, char *ssid)
{
size_t len;
-
struct ieee80211_sub_if_data *sdata;
+
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
+
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
if (res == 0) {
@@ -240,14 +246,6 @@
} else
data->flags = 0;
return res;
- } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- int res = ieee80211_ibss_get_ssid(sdata, ssid, &len);
- if (res == 0) {
- data->length = len;
- data->flags = 1;
- } else
- data->flags = 0;
- return res;
}
return -EOPNOTSUPP;
@@ -258,9 +256,11 @@
struct iw_request_info *info,
struct sockaddr *ap_addr, char *extra)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
+
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
int ret;
@@ -277,16 +277,6 @@
sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
ieee80211_sta_req_auth(sdata);
return 0;
- } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
- IEEE80211_IBSS_AUTO_CHANNEL_SEL;
- else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL;
- else
- sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_BSSID_SEL;
-
- return ieee80211_ibss_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
/*
* If it is necessary to update the WDS peer address
@@ -312,9 +302,11 @@
struct iw_request_info *info,
struct sockaddr *ap_addr, char *extra)
{
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
+
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
ap_addr->sa_family = ARPHRD_ETHER;
@@ -322,13 +314,6 @@
} else
memset(&ap_addr->sa_data, 0, ETH_ALEN);
return 0;
- } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
- if (sdata->u.ibss.state == IEEE80211_IBSS_MLME_JOINED) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.ibss.bssid, ETH_ALEN);
- } else
- memset(&ap_addr->sa_data, 0, ETH_ALEN);
- return 0;
} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);