diff options
| author | Juuso Oikarinen <juuso.oikarinen@nokia.com> | 2010-11-11 07:50:18 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-16 22:37:08 +0100 |
| commit | a619a4c0e1fd4e8c360c63d0df3fa0a401107d69 (patch) | |
| tree | c9eb89d30834140f252c77bdf578528b11716678 /net/mac80211/util.c | |
| parent | ath9k_hw: add a private op for configuring radar pulse detection (diff) | |
| download | linux-a619a4c0e1fd4e8c360c63d0df3fa0a401107d69.tar.xz linux-a619a4c0e1fd4e8c360c63d0df3fa0a401107d69.zip | |
mac80211: Add function to get probe request template for current AP
Chipsets with hardware based connection monitoring need to autonomically
send directed probe-request frames to the AP (in the event of beacon loss,
for example.)
For the hardware to be able to do this, it requires a template for the frame
to transmit to the AP, filled in with the BSSID and SSID of the AP, but also
the supported rate IE's.
This patch adds a function to mac80211, which allows the hardware driver to
fetch this template after association, so it can be configured to the hardware.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index e486286ebf1a..68d0518254dd 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1011,9 +1011,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, return pos - buffer; } -void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, - const u8 *ssid, size_t ssid_len, - const u8 *ie, size_t ie_len) +struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, + u8 *dst, + const u8 *ssid, size_t ssid_len, + const u8 *ie, size_t ie_len) { struct ieee80211_local *local = sdata->local; struct sk_buff *skb; @@ -1027,7 +1028,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, if (!buf) { printk(KERN_DEBUG "%s: failed to allocate temporary IE " "buffer\n", sdata->name); - return; + return NULL; } chan = ieee80211_frequency_to_channel( @@ -1050,8 +1051,20 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, } IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; - ieee80211_tx_skb(sdata, skb); kfree(buf); + + return skb; +} + +void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, + const u8 *ssid, size_t ssid_len, + const u8 *ie, size_t ie_len) +{ + struct sk_buff *skb; + + skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len); + if (skb) + ieee80211_tx_skb(sdata, skb); } u32 ieee80211_sta_get_rates(struct ieee80211_local *local, |