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mka: Speed up processing of duplicated SCI

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Decrease timeout for a peer with duplicated SCI to speed up process in
case it is a valid peer after MI change.

Signed-off-by: Andrey Kartashev <andrey.kartashev@afconsult.com>
This commit is contained in:
Andrey Kartashev 2018-11-02 19:02:19 +01:00 committed by Jouni Malinen
parent c1576d44a8
commit c20cc5833e
1 changed files with 7 additions and 0 deletions
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7
src/pae/ieee802_1x_kay.c
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@ -840,8 +840,15 @@ ieee802_1x_mka_decode_basic_body(struct ieee802_1x_kay *kay, const u8 *mka_msg,
peer = ieee802_1x_kay_get_peer_sci(participant,
&body->actor_sci);
if (peer) {
time_t new_expire;
wpa_printf(MSG_WARNING,
"KaY: duplicated SCI detected - maybe active attacker or peer selected new MI - ignore MKPDU");
/* Reduce timeout to speed up this process but left the
* chance for old one to prove aliveness. */
new_expire = time(NULL) + MKA_HELLO_TIME * 1.5 / 1000;
if (peer->expire > new_expire)
peer->expire = new_expire;
return NULL;
}