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authorJouni Malinen <jouni.malinen@atheros.com>2009-02-16 19:39:13 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-02-27 14:52:38 -0500
commit70692ad2923a379e0a10f9ec2ad93fbbe084cc46 (patch)
treef67488c396ea6e61f71e0199eea189ea939a698b /net/mac80211/util.c
parent83befbde839b1deb0cd752a834ffd9fde8571ae2 (diff)
nl80211: Optional IEs into scan request
This extends the NL80211_CMD_TRIGGER_SCAN command to allow applications to specify a set of information element(s) to be added into Probe Request frames with NL80211_ATTR_IE. This provides support for the MLME-SCAN.request primitive parameter VendorSpecificInfo and can be used, e.g., to implement WPS scanning. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.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.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index dee17e5cbb8..e0431a1d218 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -884,7 +884,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
}
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
- u8 *ssid, size_t ssid_len)
+ u8 *ssid, size_t ssid_len,
+ u8 *ie, size_t ie_len)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
@@ -903,7 +904,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
}
skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
- extra_preq_ie_len);
+ ie_len + extra_preq_ie_len);
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
"request\n", sdata->dev->name);
@@ -950,6 +951,8 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
*pos = rate->bitrate / 5;
}
+ if (ie)
+ memcpy(skb_put(skb, ie_len), ie, ie_len);
if (extra_preq_ie)
memcpy(skb_put(skb, extra_preq_ie_len), extra_preq_ie,
extra_preq_ie_len);