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mac80211: add beacon configuration via cfg80211

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This patch implements the cfg80211 hooks for configuring beaconing
on an access point interface in mac80211. While doing so, it fixes
a number of races that could badly crash the machine when the
beacon is changed while being requested by the driver.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2007-12-19 02:03:33 +01:00
committed by David S. Miller
parent 51fb61e76d
commit 5dfdaf58d6
6 changed files with 213 additions and 62 deletions
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14
net/mac80211/ieee80211_i.h
View File

@@ -190,9 +190,14 @@ typedef ieee80211_txrx_result (*ieee80211_tx_handler)
typedef ieee80211_txrx_result (*ieee80211_rx_handler)
(struct ieee80211_txrx_data *rx);
struct beacon_data {
u8 *head, *tail;
int head_len, tail_len;
int dtim_period;
};
struct ieee80211_if_ap {
u8 *beacon_head, *beacon_tail;
int beacon_head_len, beacon_tail_len;
struct beacon_data *beacon;
struct list_head vlans;
@@ -205,7 +210,7 @@ struct ieee80211_if_ap {
u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
atomic_t num_sta_ps; /* number of stations in PS mode */
struct sk_buff_head ps_bc_buf;
int dtim_period, dtim_count;
int dtim_count;
int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
int max_ratectrl_rateidx; /* max TX rateidx for rate control */
int num_beacons; /* number of TXed beacon frames for this BSS */
@@ -360,14 +365,11 @@ struct ieee80211_sub_if_data {
struct dentry *drop_unencrypted;
struct dentry *ieee802_1x_pac;
struct dentry *num_sta_ps;
struct dentry *dtim_period;
struct dentry *dtim_count;
struct dentry *num_beacons;
struct dentry *force_unicast_rateidx;
struct dentry *max_ratectrl_rateidx;
struct dentry *num_buffered_multicast;
struct dentry *beacon_head_len;
struct dentry *beacon_tail_len;
} ap;
struct {
struct dentry *channel_use;