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authorFilip Varga <fivarga@cisco.com>2020-02-25 14:31:33 +0100
committerOle Trøan <otroan@employees.org>2020-03-13 11:17:13 +0000
commita73f2d6f53c224668bd6bbea1a980ee4313c794f (patch)
treec40965985639940beb294e8688aedbe30e47a548 /src/plugins/nat/nat_api.c
parentc27b43673237c3971c1c170646b531728e0d8eb1 (diff)
nat: timed out session scavenging upgrade
Patch changes the behavior of session scavenging and fixes multiple nat issues. Allows proper session clearing and removes issue with lingering sessions in session db. Patch also updates and fixes CLI/API calls for better readability of session state metrics. Fixes security issue that would allow attacker to reuse timed out session in both directions (in2out/out2in). Type: improvement Signed-off-by: Filip Varga <fivarga@cisco.com> Change-Id: I78897585a2a57291fad5db6d457941aa0a0457bd
Diffstat (limited to 'src/plugins/nat/nat_api.c')
-rw-r--r--src/plugins/nat/nat_api.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/src/plugins/nat/nat_api.c b/src/plugins/nat/nat_api.c
index d8c2c5fd1c9..a71c888b6c6 100644
--- a/src/plugins/nat/nat_api.c
+++ b/src/plugins/nat/nat_api.c
@@ -247,9 +247,7 @@ vl_api_nat44_session_cleanup_t_handler (vl_api_nat44_session_cleanup_t * mp)
snat_main_t *sm = &snat_main;
vl_api_nat44_session_cleanup_reply_t *rmp;
int rv = 0;
-
- nat44_force_session_cleanup ();
-
+ nat44_force_users_cleanup ();
REPLY_MACRO (VL_API_NAT44_SESSION_CLEANUP_REPLY);
}
@@ -338,6 +336,8 @@ vl_api_nat_set_timeouts_t_handler (vl_api_nat_set_timeouts_t * mp)
sm->tcp_transitory_timeout = ntohl (mp->tcp_transitory);
sm->icmp_timeout = ntohl (mp->icmp);
+ sm->min_timeout = nat44_minimal_timeout (sm);
+
rv = nat64_set_icmp_timeout (ntohl (mp->icmp));
if (rv)
goto send_reply;
@@ -747,10 +747,8 @@ vl_api_nat44_del_user_t_handler (vl_api_nat44_del_user_t * mp)
vl_api_nat44_del_user_reply_t *rmp;
ip4_address_t addr;
int rv;
-
memcpy (&addr.as_u8, mp->ip_address, 4);
rv = nat44_user_del (&addr, ntohl (mp->fib_index));
-
REPLY_MACRO (VL_API_NAT44_DEL_USER_REPLY);
}