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-rw-r--r--net/mac80211/ieee80211_i.h3
-rw-r--r--net/mac80211/scan.c3
-rw-r--r--net/mac80211/util.c16
3 files changed, 18 insertions, 4 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3641563..78a8d92 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1256,7 +1256,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
const u8 *key, u8 key_len, u8 key_idx);
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
- enum ieee80211_band band, u32 rate_mask);
+ enum ieee80211_band band, u32 rate_mask,
+ u8 channel);
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);
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 1623e9d..5171a95 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -242,7 +242,8 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
local->hw_scan_req->n_channels = n_chans;
ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie,
- req->ie, req->ie_len, band, (u32) -1);
+ req->ie, req->ie_len, band, (u32) -1,
+ 0);
local->hw_scan_req->ie_len = ielen;
return true;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index bfd19d7..aba025d 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -895,7 +895,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
- enum ieee80211_band band, u32 rate_mask)
+ enum ieee80211_band band, u32 rate_mask,
+ u8 channel)
{
struct ieee80211_supported_band *sband;
u8 *pos;
@@ -947,6 +948,12 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
pos += ext_rates_len;
}
+ if (channel && sband->band == IEEE80211_BAND_2GHZ) {
+ *pos++ = WLAN_EID_DS_PARAMS;
+ *pos++ = 1;
+ *pos++ = channel;
+ }
+
/* insert custom IEs that go before HT */
if (ie && ie_len) {
static const u8 before_ht[] = {
@@ -1013,6 +1020,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
struct ieee80211_mgmt *mgmt;
size_t buf_len;
u8 *buf;
+ u8 chan;
/* FIXME: come up with a proper value */
buf = kmalloc(200 + ie_len, GFP_KERNEL);
@@ -1022,10 +1030,14 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
return;
}
+ 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,
sdata->rc_rateidx_mask
- [local->hw.conf.channel->band]);
+ [local->hw.conf.channel->band],
+ chan);
skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
ssid, ssid_len,