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authorSujith Manoharan <c_manoha@qti.qualcomm.com>2012-10-12 17:35:45 +0530
committerJohannes Berg <johannes.berg@intel.com>2012-10-18 09:01:53 +0200
commitc13a765bd96f4e2f52d218ee6e5c0715380eeeb8 (patch)
treeeb785098f0a3e3eb4217d9943e9dcd26180ad6b8
parentcd2bb512cda58f1efb922ad6dc29013ea5d5d9d0 (diff)
downloadop-kernel-dev-c13a765bd96f4e2f52d218ee6e5c0715380eeeb8.zip
op-kernel-dev-c13a765bd96f4e2f52d218ee6e5c0715380eeeb8.tar.gz
mac80211: Notify new IBSS network creation
Initialization of beacon transmission in IBSS mode depends on whether a new BSS is being created or joined. When joining an existing IBSS network, beaconing has to start only after a TSF-sync has happened - this is explained in 11.1.4. Introduce a new parameter in the BSS information structure to indicate creator/joiner mode. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--include/net/mac80211.h2
-rw-r--r--net/mac80211/ibss.c11
2 files changed, 10 insertions, 3 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 89d5bba..71c2f9c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -258,6 +258,7 @@ enum ieee80211_rssi_event {
* @assoc: association status
* @ibss_joined: indicates whether this station is part of an IBSS
* or not
+ * @ibss_creator: indicates if a new IBSS network is being created
* @aid: association ID number, valid only when @assoc is true
* @use_cts_prot: use CTS protection
* @use_short_preamble: use 802.11b short preamble;
@@ -313,6 +314,7 @@ struct ieee80211_bss_conf {
const u8 *bssid;
/* association related data */
bool assoc, ibss_joined;
+ bool ibss_creator;
u16 aid;
/* erp related data */
bool use_cts_prot;
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index c6b1448..3d5332e 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -38,7 +38,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, const int beacon_int,
struct ieee80211_channel *chan,
const u32 basic_rates,
- const u16 capability, u64 tsf)
+ const u16 capability, u64 tsf,
+ bool creator)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
@@ -71,6 +72,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
/* if merging, indicate to driver that we leave the old IBSS */
if (sdata->vif.bss_conf.ibss_joined) {
sdata->vif.bss_conf.ibss_joined = false;
+ sdata->vif.bss_conf.ibss_creator = false;
netif_carrier_off(sdata->dev);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS);
}
@@ -197,6 +199,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
bss_change |= BSS_CHANGED_HT;
bss_change |= BSS_CHANGED_IBSS;
sdata->vif.bss_conf.ibss_joined = true;
+ sdata->vif.bss_conf.ibss_creator = creator;
ieee80211_bss_info_change_notify(sdata, bss_change);
ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates);
@@ -249,7 +252,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
cbss->channel,
basic_rates,
cbss->capability,
- cbss->tsf);
+ cbss->tsf,
+ false);
}
static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
@@ -734,7 +738,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
ifibss->channel, ifibss->basic_rates,
- capability, 0);
+ capability, 0, true);
}
/*
@@ -1198,6 +1202,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
lockdep_is_held(&sdata->u.ibss.mtx));
RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
sdata->vif.bss_conf.ibss_joined = false;
+ sdata->vif.bss_conf.ibss_creator = false;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
BSS_CHANGED_IBSS);
synchronize_rcu();
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