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Diffstat (limited to 'net/mac80211/ibss.c')
-rw-r--r--net/mac80211/ibss.c102
1 files changed, 55 insertions, 47 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 6030e003180..aa537681f87 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -22,6 +22,7 @@
#include <asm/unaligned.h>
#include "ieee80211_i.h"
+#include "driver-ops.h"
#include "rate.h"
#define IEEE80211_SCAN_INTERVAL (2 * HZ)
@@ -73,11 +74,11 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt;
u8 *pos;
struct ieee80211_supported_band *sband;
+ u32 bss_change;
- 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);
skb = ifibss->skb;
rcu_assign_pointer(ifibss->presp, NULL);
@@ -92,15 +93,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
memcpy(ifibss->bssid, bssid, ETH_ALEN);
- local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
-
sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
- ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
-
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 */
@@ -111,7 +109,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
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(beacon_int);
mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
mgmt->u.beacon.capab_info = cpu_to_le16(capability);
@@ -156,8 +154,13 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
rcu_assign_pointer(ifibss->presp, skb);
- ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
- IEEE80211_IFCC_BEACON_ENABLED);
+ sdata->vif.bss_conf.beacon_int = beacon_int;
+ bss_change = BSS_CHANGED_BEACON_INT;
+ bss_change |= ieee80211_reset_erp_info(sdata);
+ bss_change |= BSS_CHANGED_BSSID;
+ bss_change |= BSS_CHANGED_BEACON;
+ bss_change |= BSS_CHANGED_BEACON_ENABLED;
+ ieee80211_bss_info_change_notify(sdata, bss_change);
rates = 0;
for (i = 0; i < supp_rates_len; i++) {
@@ -181,8 +184,13 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_bss *bss)
{
+ u16 beacon_int = bss->cbss.beacon_interval;
+
+ if (beacon_int < 10)
+ beacon_int = 10;
+
__ieee80211_sta_join_ibss(sdata, bss->cbss.bssid,
- bss->cbss.beacon_interval,
+ beacon_int,
bss->cbss.channel,
bss->supp_rates_len, bss->supp_rates,
bss->cbss.capability,
@@ -307,12 +315,13 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
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;
+ } else {
+ /*
+ * second best option: get current TSF
+ * (will return -1 if not supported)
+ */
+ rx_timestamp = drv_get_tsf(local);
+ }
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "RX beacon SA=%pM BSSID="
@@ -432,14 +441,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
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,
- ifibss->ssid, IEEE80211_MAX_SSID_LEN);
- sdata->local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
- ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
+ ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len);
}
static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
@@ -471,9 +473,6 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
sband = local->hw.wiphy->bands[ifibss->channel->band];
- if (local->hw.conf.beacon_int == 0)
- local->hw.conf.beacon_int = 100;
-
capability = WLAN_CAPABILITY_IBSS;
if (sdata->default_key)
@@ -487,7 +486,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
*pos++ = (u8) (rate / 5);
}
- __ieee80211_sta_join_ibss(sdata, bssid, local->hw.conf.beacon_int,
+ __ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
ifibss->channel, sband->n_bitrates,
supp_rates, capability, 0);
}
@@ -552,15 +551,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
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;
-
- 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;
- ieee80211_request_scan(sdata, &local->int_scan_req);
+ ieee80211_request_internal_scan(sdata, ifibss->ssid,
+ ifibss->ssid_len);
} else if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) {
int interval = IEEE80211_SCAN_INTERVAL;
@@ -600,10 +592,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
len < 24 + 2 || !ifibss->presp)
return;
- if (local->ops->tx_last_beacon)
- tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
- else
- tx_last_beacon = 1;
+ tx_last_beacon = drv_tx_last_beacon(local);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
@@ -786,8 +775,12 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
+ if (!netif_running(sdata->dev))
+ continue;
if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
continue;
+ if (!sdata->u.ibss.ssid_len)
+ continue;
sdata->u.ibss.last_scan_completed = jiffies;
ieee80211_sta_find_ibss(sdata);
}
@@ -827,15 +820,14 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
{
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->vif.bss_conf.beacon_int = params->beacon_interval;
+
sdata->u.ibss.channel = params->channel;
sdata->u.ibss.fixed_channel = params->channel_fixed;
@@ -859,6 +851,19 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
sdata->u.ibss.ibss_join_req = jiffies;
+ memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
+
+ /*
+ * The ssid_len setting below is used to see whether
+ * we are active, and we need all other settings
+ * before that may get visible.
+ */
+ mb();
+
+ sdata->u.ibss.ssid_len = params->ssid_len;
+
+ ieee80211_recalc_idle(sdata->local);
+
set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
queue_work(sdata->local->hw.workqueue, &sdata->u.ibss.work);
@@ -880,12 +885,15 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
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);
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
synchronize_rcu();
kfree_skb(skb);
skb_queue_purge(&sdata->u.ibss.skb_queue);
memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
+ sdata->u.ibss.ssid_len = 0;
+
+ ieee80211_recalc_idle(sdata->local);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-16 14:11:17 +0000