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authorJohannes Berg <johannes@sipsolutions.net>2008-07-09 14:40:37 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-07-14 14:30:07 -0400
commit9d139c810a2aa17365cc548d0cd2a189d8433c65 (patch)
treeef10ca55f93689ab97368376d277102d2527c961 /net/mac80211/tx.c
parentf3947e2dfa3b18f375b7acd03b7ee2877d0751fc (diff)
downloadop-kernel-dev-9d139c810a2aa17365cc548d0cd2a189d8433c65.zip
op-kernel-dev-9d139c810a2aa17365cc548d0cd2a189d8433c65.tar.gz
mac80211: revamp beacon configuration
This patch changes mac80211's beacon configuration handling to never pass skbs to the driver directly but rather always require the driver to use ieee80211_beacon_get(). Additionally, it introduces "change flags" on the config_interface() call to enable drivers to figure out what is changing. Finally, it removes the beacon_update() driver callback in favour of having IBSS beacon delivered by ieee80211_beacon_get() as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c36
1 files changed, 21 insertions, 15 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index a757dcc..8843416 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1788,17 +1788,17 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
+ struct sk_buff *skb = NULL;
struct ieee80211_tx_info *info;
struct net_device *bdev;
struct ieee80211_sub_if_data *sdata = NULL;
struct ieee80211_if_ap *ap = NULL;
+ struct ieee80211_if_sta *ifsta = NULL;
struct rate_selection rsel;
struct beacon_data *beacon;
struct ieee80211_supported_band *sband;
struct ieee80211_mgmt *mgmt;
int *num_beacons;
- bool err = true;
enum ieee80211_band band = local->hw.conf.channel->band;
u8 *pos;
@@ -1852,9 +1852,24 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
beacon->tail, beacon->tail_len);
num_beacons = &ap->num_beacons;
+ } else
+ goto out;
+ } else if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ struct ieee80211_hdr *hdr;
+ ifsta = &sdata->u.sta;
- err = false;
- }
+ if (!ifsta->probe_resp)
+ goto out;
+
+ skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC);
+ if (!skb)
+ goto out;
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ hdr->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_BEACON);
+
+ num_beacons = &ifsta->num_beacons;
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
/* headroom, head length, tail length and maximum TIM length */
skb = dev_alloc_skb(local->tx_headroom + 400);
@@ -1881,17 +1896,8 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
mesh_mgmt_ies_add(skb, sdata->dev);
num_beacons = &sdata->u.sta.num_beacons;
-
- err = false;
- }
-
- if (err) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for %s\n",
- bdev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- skb = NULL;
+ } else {
+ WARN_ON(1);
goto out;
}
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