summaryrefslogtreecommitdiffstats
path: root/src/plugins/nat/nat_api.c
diff options
context:
space:
mode:
authorMatus Fabian <matfabia@cisco.com>2018-08-23 00:33:35 -0700
committerOle Trøan <otroan@employees.org>2018-08-27 12:17:25 +0000
commit878c646aea9b9ccf68011ffd964694c43bbe5fdd (patch)
tree4acfaf8c3e35e2c2e334ae8495fdd52c49b5a791 /src/plugins/nat/nat_api.c
parentd2dcd200fe2e94f6408155f6c38e7f570dbe1183 (diff)
NAT44: add support for session timeout (VPP-1272)
NAT44 (vanilla/simple and endpoint-dependent mode) now lazily delete expired sessions. When inserting to session lookup hash and bucket is full, expired session is overwritten. Change-Id: Ib1b34959f60f0ca4f5b13525b1d41dd2f992288d Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat_api.c')
-rw-r--r--src/plugins/nat/nat_api.c212
1 files changed, 70 insertions, 142 deletions
diff --git a/src/plugins/nat/nat_api.c b/src/plugins/nat/nat_api.c
index 629045f8c31..8055259616f 100644
--- a/src/plugins/nat/nat_api.c
+++ b/src/plugins/nat/nat_api.c
@@ -416,6 +416,74 @@ vl_api_nat_reass_dump_t_print (vl_api_nat_reass_dump_t * mp, void *handle)
FINISH;
}
+static void
+vl_api_nat_set_timeouts_t_handler (vl_api_nat_set_timeouts_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_set_timeouts_reply_t *rmp;
+ int rv = 0;
+
+ sm->udp_timeout = ntohl (mp->udp);
+ sm->tcp_established_timeout = ntohl (mp->tcp_established);
+ sm->tcp_transitory_timeout = ntohl (mp->tcp_transitory);
+ sm->icmp_timeout = ntohl (mp->icmp);
+
+ rv = nat64_set_icmp_timeout (ntohl (mp->icmp));
+ if (rv)
+ goto send_reply;
+ rv = nat64_set_udp_timeout (ntohl (mp->udp));
+ if (rv)
+ goto send_reply;
+ rv =
+ nat64_set_tcp_timeouts (ntohl (mp->tcp_transitory),
+ ntohl (mp->tcp_established));
+
+send_reply:
+ REPLY_MACRO (VL_API_NAT_SET_TIMEOUTS_REPLY);
+}
+
+static void *
+vl_api_nat_set_timeouts_t_print (vl_api_nat_set_timeouts_t * mp, void *handle)
+{
+ u8 *s;
+
+ s = format (0, "SCRIPT: nat_set_timeouts ");
+ s = format (s, "udp %d tcp_established %d tcp_transitory %d icmp %d\n",
+ ntohl (mp->udp),
+ ntohl (mp->tcp_established),
+ ntohl (mp->tcp_transitory), ntohl (mp->icmp));
+
+ FINISH;
+}
+
+static void
+vl_api_nat_get_timeouts_t_handler (vl_api_nat_get_timeouts_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_get_timeouts_reply_t *rmp;
+ int rv = 0;
+
+ /* *INDENT-OFF* */
+ REPLY_MACRO2 (VL_API_NAT_GET_TIMEOUTS_REPLY,
+ ({
+ rmp->udp = htonl (sm->udp_timeout);
+ rmp->tcp_established = htonl (sm->tcp_established_timeout);
+ rmp->tcp_transitory = htonl (sm->tcp_transitory_timeout);
+ rmp->icmp = htonl (sm->icmp_timeout);
+ }))
+ /* *INDENT-ON* */
+}
+
+static void *
+vl_api_nat_get_timeouts_t_print (vl_api_nat_get_timeouts_t * mp, void *handle)
+{
+ u8 *s;
+
+ s = format (0, "SCRIPT: nat_get_timeouts");
+
+ FINISH;
+}
+
/*************/
/*** NAT44 ***/
/*************/
@@ -1839,79 +1907,6 @@ vl_api_nat_det_map_dump_t_print (vl_api_nat_det_map_dump_t * mp, void *handle)
}
static void
-vl_api_nat_det_set_timeouts_t_handler (vl_api_nat_det_set_timeouts_t * mp)
-{
- snat_main_t *sm = &snat_main;
- vl_api_nat_det_set_timeouts_reply_t *rmp;
- int rv = 0;
-
- if (!sm->deterministic)
- {
- rv = VNET_API_ERROR_UNSUPPORTED;
- goto send_reply;
- }
-
- sm->udp_timeout = ntohl (mp->udp);
- sm->tcp_established_timeout = ntohl (mp->tcp_established);
- sm->tcp_transitory_timeout = ntohl (mp->tcp_transitory);
- sm->icmp_timeout = ntohl (mp->icmp);
-
-send_reply:
- REPLY_MACRO (VL_API_NAT_DET_SET_TIMEOUTS_REPLY);
-}
-
-static void *
-vl_api_nat_det_set_timeouts_t_print (vl_api_nat_det_set_timeouts_t * mp,
- void *handle)
-{
- u8 *s;
-
- s = format (0, "SCRIPT: nat_det_set_timeouts ");
- s = format (s, "udp %d tcp_established %d tcp_transitory %d icmp %d\n",
- ntohl (mp->udp),
- ntohl (mp->tcp_established),
- ntohl (mp->tcp_transitory), ntohl (mp->icmp));
-
- FINISH;
-}
-
-static void
-vl_api_nat_det_get_timeouts_t_handler (vl_api_nat_det_get_timeouts_t * mp)
-{
- snat_main_t *sm = &snat_main;
- vl_api_nat_det_get_timeouts_reply_t *rmp;
- int rv = 0;
-
- if (!sm->deterministic)
- {
- rv = VNET_API_ERROR_UNSUPPORTED;
- REPLY_MACRO (VL_API_NAT_DET_GET_TIMEOUTS_REPLY);
- return;
- }
-
- /* *INDENT-OFF* */
- REPLY_MACRO2 (VL_API_NAT_DET_GET_TIMEOUTS_REPLY,
- ({
- rmp->udp = htonl (sm->udp_timeout);
- rmp->tcp_established = htonl (sm->tcp_established_timeout);
- rmp->tcp_transitory = htonl (sm->tcp_transitory_timeout);
- rmp->icmp = htonl (sm->icmp_timeout);
- }))
- /* *INDENT-ON* */
-}
-
-static void *
-vl_api_nat_det_get_timeouts_t_print (vl_api_nat_det_get_timeouts_t * mp,
- void *handle)
-{
- u8 *s;
-
- s = format (0, "SCRIPT: nat_det_get_timeouts");
-
- FINISH;
-}
-
-static void
vl_api_nat_det_close_session_out_t_handler (vl_api_nat_det_close_session_out_t
* mp)
{
@@ -2396,71 +2391,6 @@ vl_api_nat64_bib_dump_t_print (vl_api_nat64_bib_dump_t * mp, void *handle)
FINISH;
}
-static void
-vl_api_nat64_set_timeouts_t_handler (vl_api_nat64_set_timeouts_t * mp)
-{
- snat_main_t *sm = &snat_main;
- vl_api_nat64_set_timeouts_reply_t *rmp;
- int rv = 0;
-
- rv = nat64_set_icmp_timeout (ntohl (mp->icmp));
- if (rv)
- goto send_reply;
- rv = nat64_set_udp_timeout (ntohl (mp->udp));
- if (rv)
- goto send_reply;
- rv =
- nat64_set_tcp_timeouts (ntohl (mp->tcp_trans), ntohl (mp->tcp_est),
- ntohl (mp->tcp_incoming_syn));
-
-send_reply:
- REPLY_MACRO (VL_API_NAT64_SET_TIMEOUTS_REPLY);
-}
-
-static void *vl_api_nat64_set_timeouts_t_print
- (vl_api_nat64_set_timeouts_t * mp, void *handle)
-{
- u8 *s;
-
- s = format (0, "SCRIPT: nat64_set_timeouts ");
- s =
- format (s,
- "udp %d icmp %d, tcp_trans %d, tcp_est %d, tcp_incoming_syn %d\n",
- ntohl (mp->udp), ntohl (mp->icmp), ntohl (mp->tcp_trans),
- ntohl (mp->tcp_est), ntohl (mp->tcp_incoming_syn));
-
- FINISH;
-}
-
-static void
-vl_api_nat64_get_timeouts_t_handler (vl_api_nat64_get_timeouts_t * mp)
-{
- snat_main_t *sm = &snat_main;
- vl_api_nat64_get_timeouts_reply_t *rmp;
- int rv = 0;
-
- /* *INDENT-OFF* */
- REPLY_MACRO2 (VL_API_NAT64_GET_TIMEOUTS_REPLY,
- ({
- rmp->udp = htonl (nat64_get_udp_timeout());
- rmp->icmp = htonl (nat64_get_icmp_timeout());
- rmp->tcp_trans = htonl (nat64_get_tcp_trans_timeout());
- rmp->tcp_est = htonl (nat64_get_tcp_est_timeout());
- rmp->tcp_incoming_syn = htonl (nat64_get_tcp_incoming_syn_timeout());
- }))
- /* *INDENT-ON* */
-}
-
-static void *vl_api_nat64_get_timeouts_t_print
- (vl_api_nat64_get_timeouts_t * mp, void *handle)
-{
- u8 *s;
-
- s = format (0, "SCRIPT: nat64_get_timeouts");
-
- FINISH;
-}
-
static int
nat64_api_st_walk (nat64_db_st_entry_t * ste, void *arg)
{
@@ -3059,6 +2989,8 @@ _(NAT_IPFIX_ENABLE_DISABLE, nat_ipfix_enable_disable) \
_(NAT_SET_REASS, nat_set_reass) \
_(NAT_GET_REASS, nat_get_reass) \
_(NAT_REASS_DUMP, nat_reass_dump) \
+_(NAT_SET_TIMEOUTS, nat_set_timeouts) \
+_(NAT_GET_TIMEOUTS, nat_get_timeouts) \
_(NAT44_ADD_DEL_ADDRESS_RANGE, nat44_add_del_address_range) \
_(NAT44_INTERFACE_ADD_DEL_FEATURE, nat44_interface_add_del_feature) \
_(NAT44_ADD_DEL_STATIC_MAPPING, nat44_add_del_static_mapping) \
@@ -3084,8 +3016,6 @@ _(NAT_DET_ADD_DEL_MAP, nat_det_add_del_map) \
_(NAT_DET_FORWARD, nat_det_forward) \
_(NAT_DET_REVERSE, nat_det_reverse) \
_(NAT_DET_MAP_DUMP, nat_det_map_dump) \
-_(NAT_DET_SET_TIMEOUTS, nat_det_set_timeouts) \
-_(NAT_DET_GET_TIMEOUTS, nat_det_get_timeouts) \
_(NAT_DET_CLOSE_SESSION_OUT, nat_det_close_session_out) \
_(NAT_DET_CLOSE_SESSION_IN, nat_det_close_session_in) \
_(NAT_DET_SESSION_DUMP, nat_det_session_dump) \
@@ -3095,8 +3025,6 @@ _(NAT64_ADD_DEL_INTERFACE, nat64_add_del_interface) \
_(NAT64_INTERFACE_DUMP, nat64_interface_dump) \
_(NAT64_ADD_DEL_STATIC_BIB, nat64_add_del_static_bib) \
_(NAT64_BIB_DUMP, nat64_bib_dump) \
-_(NAT64_SET_TIMEOUTS, nat64_set_timeouts) \
-_(NAT64_GET_TIMEOUTS, nat64_get_timeouts) \
_(NAT64_ST_DUMP, nat64_st_dump) \
_(NAT64_ADD_DEL_PREFIX, nat64_add_del_prefix) \
_(NAT64_PREFIX_DUMP, nat64_prefix_dump) \