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TDLS: Tear down old link when receiving TDLS Setup Request

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Jouni Malinen 2011-01-27 14:38:34 +02:00 committed by Jouni Malinen
parent 2a469a6b56
commit a8b2c2d657
1 changed files with 24 additions and 2 deletions
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26
src/rsn_supp/tdls.c
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@ -1286,8 +1286,23 @@ skip_rsn:
peer->next = sm->tdls;
sm->tdls = peer;
} else {
if (peer->tpk_success) {
wpa_printf(MSG_DEBUG, "TDLS: TDLS Setup Request while "
"direct link is enabled - tear down the "
"old link first");
#if 0
/* TODO: Disabling the link would be more proper
* operation here, but it seems to trigger a race with
* some drivers handling the new request frame. */
wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, src_addr);
#else
wpa_tdls_del_key(sm, peer);
#endif
wpa_tdls_peer_free(sm, peer);
}
/*
* An entry is already present, so check if a TPK_M1 Request
* An entry is already present, so check if a TPK M1 Request
* had been sent.
* If so compare MAC address and let
* - greater MAC continue to be initiator
@ -1404,7 +1419,14 @@ static void wpa_tdls_enable_link(struct wpa_sm *sm, struct wpa_tdls_peer *peer)
peer->tpk_success = 1;
eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer);
if (wpa_tdls_get_privacy(sm)) {
eloop_register_timeout(peer->lifetime, 0, wpa_tdls_tpk_timeout,
u32 lifetime = peer->lifetime;
/*
* Start the initiator process a bit earlier to avoid race
* condition with the responder sending teardown request.
*/
if (lifetime > 3 && peer->initiator)
lifetime -= 3;
eloop_register_timeout(lifetime, 0, wpa_tdls_tpk_timeout,
sm, peer);
}
wpa_sm_tdls_oper(sm, TDLS_ENABLE_LINK, peer->addr);