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P2P: Reject PD Request for unknown group

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If PD Request includes P2P Group ID, verify that the specified
group matches with a group we are currently operating. If no match
is found, reject the PD Request for join-a-group case.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2012-05-08 17:34:19 +03:00 committed by Jouni Malinen
parent 6f251b6bb5
commit 051c7bbdd0
1 changed files with 15 additions and 0 deletions
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15
src/p2p/p2p_pd.c
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@ -126,6 +126,21 @@ void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
goto out;
}
if (msg.group_id) {
size_t i;
for (i = 0; i < p2p->num_groups; i++) {
if (p2p_group_is_group_id_match(p2p->groups[i],
msg.group_id,
msg.group_id_len))
break;
}
if (i == p2p->num_groups) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: PD "
"request for unknown P2P Group ID - reject");
goto out;
}
}
if (dev)
dev->flags &= ~(P2P_DEV_PD_PEER_DISPLAY |
P2P_DEV_PD_PEER_KEYPAD);