diff options
| author | Paul Stewart <pstew@chromium.org> | 2011-06-23 09:00:11 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-06-27 15:09:41 -0400 |
| commit | a806c558e01747b499201d2667818f03d79ef1e3 (patch) | |
| tree | d639da034366d3390f8b99a96cc30bec11abf446 /net/mac80211/util.c | |
| parent | ce2dd3c2d54494195e8820b2432eb47ca61ebdd7 (diff) | |
mac80211: Drop DS Channel PARAM in directed probe
Do not send DS Channel parameter for directed probe requests
in order to maximize the chance that we get a response. Some
badly-behaved APs don't respond when this parameter is included.
Signed-off-by: Paul Stewart <pstew@chromium.org>
Reviewed-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 | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 05e3fb889d7..652e5695225 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1018,7 +1018,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, 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) + const u8 *ie, size_t ie_len, + bool directed) { struct ieee80211_local *local = sdata->local; struct sk_buff *skb; @@ -1035,8 +1036,16 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, return NULL; } - chan = ieee80211_frequency_to_channel( - local->hw.conf.channel->center_freq); + /* + * Do not send DS Channel parameter for directed probe requests + * in order to maximize the chance that we get a response. Some + * badly-behaved APs don't respond when this parameter is included. + */ + if (directed) + chan = 0; + else + chan = ieee80211_frequency_to_channel( + local->hw.conf.channel->center_freq); buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len, local->hw.conf.channel->band, @@ -1062,11 +1071,13 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 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) + const u8 *ie, size_t ie_len, + bool directed) { struct sk_buff *skb; - skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len); + skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len, + directed); if (skb) ieee80211_tx_skb(sdata, skb); } |