Commit 7c12ce8b authored by Kalle Valo's avatar Kalle Valo Committed by John W. Linville

mac80211: use Probe Request template when sending a direct scan

As mac80211 now has a separate function for creating Probe Request templates,
better to use it when sending direct Probe Requests to an AP. Only the
bssid needs to be updated in the template before sending it.
Signed-off-by: default avatarKalle Valo <>
Signed-off-by: default avatarJohn W. Linville <>
parent 05e54ea6
......@@ -1000,37 +1000,29 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
u8 *pos;
skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
if (!skb) {
printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
"request\n", sdata->name);
size_t buf_len;
u8 *buf;
/* FIXME: come up with a proper value */
buf = kmalloc(200 + ie_len, GFP_KERNEL);
if (!buf) {
printk(KERN_DEBUG "%s: failed to allocate temporary IE "
"buffer\n", sdata->name);
skb_reserve(skb, local->hw.extra_tx_headroom);
mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
memset(mgmt, 0, 24);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len,
skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
ssid, ssid_len,
buf, buf_len);
if (dst) {
mgmt = (struct ieee80211_mgmt *) skb->data;
memcpy(mgmt->da, dst, ETH_ALEN);
memcpy(mgmt->bssid, dst, ETH_ALEN);
} else {
memset(mgmt->da, 0xff, ETH_ALEN);
memset(mgmt->bssid, 0xff, ETH_ALEN);
pos = skb_put(skb, 2 + ssid_len);
*pos++ = WLAN_EID_SSID;
*pos++ = ssid_len;
memcpy(pos, ssid, ssid_len);
pos += ssid_len;
skb_put(skb, ieee80211_build_preq_ies(local, pos, ie, ie_len,
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
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