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P2P: Do not accept any BSS entry for join if SSID is already known

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Use wpa_bss_get() with the specific Group SSID instead of
wpa_bss_get_bssid_latest() if the SSID is already known. This makes the
P2P join operations more robust in case the frequency of the group was
not yet known and the same P2P Interface Address may have been used in
multiple group instances with an older group entry still present in the
cached scan results.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-12-30 19:02:33 +02:00 committed by Jouni Malinen
parent b875276c4d
commit 8b8d4f4eb4
1 changed files with 7 additions and 2 deletions
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9
wpa_supplicant/p2p_supplicant.c
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@ -5091,8 +5091,13 @@ static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
res.ssid_len = ssid_len;
os_memcpy(res.ssid, ssid, ssid_len);
} else {
bss = wpa_bss_get_bssid_latest(wpa_s,
wpa_s->pending_join_iface_addr);
if (ssid && ssid_len) {
bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
ssid, ssid_len);
} else {
bss = wpa_bss_get_bssid_latest(
wpa_s, wpa_s->pending_join_iface_addr);
}
if (bss) {
res.freq = bss->freq;
res.ssid_len = bss->ssid_len;