[PATCH] mka: Fix unexpected cleanup

[Ze Gan]

Because the key server may not include dist sak and use sak in ONE packet,
Meanwhile, after dist sak, the current participant(Non-Key Server) will
install SC or SA(s) after decoding the dist sak which may take few seconds
in real physical platforms. Meanwhile, the peer expire time is always
initialized at adding the key server to peer list. The gap between adding
the key server to peer list and processing next use sak packet may exceed
the threshold of MKA_LIFE_TIME(6s). It will cause an unexpected cleanup
(delete SC and SA(s)). So, update the expire timeout at dist sak also.

Signed-off-by: Ze Gan <ganze718 at gmail.com>
---
 src/pae/ieee802_1x_kay.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/pae/ieee802_1x_kay.c b/src/pae/ieee802_1x_kay.c
index b2905a792..548a52c24 100644
--- a/src/pae/ieee802_1x_kay.c
+++ b/src/pae/ieee802_1x_kay.c
@@ -1945,6 +1945,18 @@ ieee802_1x_mka_decode_dist_sak_body(
        kay->rcvd_keys++;
        participant->to_use_sak = true;

+       /**
+        * Because the key server may not include dist sak and use sak
in ONE packet,
+        * Meanwhile, after dist sak, the current participant(Non-Key
Server) will
+        * install SC or SA(s) after decoding the dist sak which may
take few seconds
+        * in real physical platforms. Meanwhile, the peer expire time is always
+        * initialized at adding the key server to peer list. The gap
between adding
+        * the key server to peer list and processing next use sak
packet may exceed
+        * the threshold of MKA_LIFE_TIME(6s). It will cause an
unexpected cleanup
+        * (delete SC and SA(s)). So, update the expire timeout at
dist sak also.
+        */
+       peer->expire = time(NULL) + MKA_LIFE_TIME / 1000;
+
        return 0;
 }

--
2.25.1