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mac80211: clean up beacon interval settings

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We currently have two beacon interval configuration knobs:
hw.conf.beacon_int and vif.bss_info.beacon_int. This is
rather confusing, even though the former is used when we
beacon ourselves and the latter when we are associated to
an AP.

This just deprecates the hw.conf.beacon_int setting in favour
of always using vif.bss_info.beacon_int. Since it touches all
the beaconing IBSS code anyway, we can also add support for
the cfg80211 IBSS beacon interval configuration easily.

NOTE: The hw.conf.beacon_int setting is retained for now due
      to drivers still using it -- I couldn't untangle all
      drivers, some are updated in this patch.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-04-23 16:10:04 +02:00
committed by John W. Linville
parent f3b85252f0
commit 57c4d7b4c4
21 changed files with 112 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
net/mac80211/ibss.c
View File

@@ -73,6 +73,7 @@ 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. */
@@ -92,8 +93,6 @@ 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);
@@ -101,6 +100,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
local->oper_channel = chan;
local->oper_channel_type = NL80211_CHAN_NO_HT;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
sdata->vif.bss_conf.beacon_int = beacon_int;
bss_change = BSS_CHANGED_BEACON_INT;
bss_change |= ieee80211_reset_erp_info(sdata);
ieee80211_bss_info_change_notify(sdata, bss_change);
sband = local->hw.wiphy->bands[chan->band];
/* Build IBSS probe response */
@@ -111,7 +116,7 @@ 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);
@@ -181,8 +186,13 @@ 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,
@@ -464,9 +474,6 @@ 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)
@@ -480,7 +487,7 @@ 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);
}
@@ -823,6 +830,8 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
} 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;