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eapol: emit HANDSHAKE_EVENT_REKEY_FAILED

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If we receive handshake message 1/4 after we are already connected
the AP is attempting to rekey. This may not be allowed and if not
we do not process the rekey and emit HANDSHAKE_EVENT_REKEY_FAILED
so any listeners can handle accordingly.
This commit is contained in:
James Prestwood 2019-01-25 11:23:11 -08:00 committed by Denis Kenzior
parent a76376cac4
commit 8edaa23f8a
1 changed files with 10 additions and 0 deletions
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10
src/eapol.c
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@ -1104,6 +1104,16 @@ static void eapol_handle_ptk_1_of_4(struct eapol_sm *sm,
memcmp(sm->handshake->anonce, memcmp(sm->handshake->anonce,
ek->key_nonce, sizeof(ek->key_nonce)) || ek->key_nonce, sizeof(ek->key_nonce)) ||
sm->handshake->ptk_complete) { sm->handshake->ptk_complete) {
if (sm->handshake->ptk_complete && sm->handshake->no_rekey) {
/*
* In case of rekey not being allowed, signal to upper
* layers that we need to do a full reauth
*/
handshake_event(sm->handshake,
HANDSHAKE_EVENT_REKEY_FAILED, NULL);
return;
}
handshake_state_new_snonce(sm->handshake); handshake_state_new_snonce(sm->handshake);
handshake_state_set_anonce(sm->handshake, ek->key_nonce); handshake_state_set_anonce(sm->handshake, ek->key_nonce);