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authorMatus Fabian <matfabia@cisco.com>2017-12-18 05:38:24 -0800
committerOle Trøan <otroan@employees.org>2017-12-19 10:34:07 +0000
commitb932d26ea48ba8aa7677dc3b6ffd5d4729176c8f (patch)
treed4349f5f528814032502dac7fde65d16a44834cc /src/plugins/nat/in2out.c
parentf13f6a4dc9b68d6972ffbfb1dd94912d66887358 (diff)
NAT: Twice NAT44 (VPP-969)
Translation of both source and destination addresses and ports for 1:1 NAT session initiated from outside network (ExternalIP K8 use case). Change-Id: Ic0000497cf71619aac996d6d580844f0ea0edc14 Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/in2out.c')
-rwxr-xr-xsrc/plugins/nat/in2out.c475
1 files changed, 102 insertions, 373 deletions
diff --git a/src/plugins/nat/in2out.c b/src/plugins/nat/in2out.c
index 1052451ed0a..603abb8ff38 100755
--- a/src/plugins/nat/in2out.c
+++ b/src/plugins/nat/in2out.c
@@ -236,7 +236,7 @@ snat_not_translate (snat_main_t * sm, vlib_node_runtime_t *node,
&value0))
{
/* or is static mappings */
- if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0))
+ if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0, 0))
return 0;
}
else
@@ -256,14 +256,8 @@ static u32 slow_path (snat_main_t *sm, vlib_buffer_t *b0,
u32 thread_index)
{
snat_user_t *u;
- snat_user_key_t user_key;
snat_session_t *s;
- clib_bihash_kv_8_8_t kv0, value0;
- u32 oldest_per_user_translation_list_index;
- dlist_elt_t * oldest_per_user_translation_list_elt;
- dlist_elt_t * per_user_translation_list_elt;
- dlist_elt_t * per_user_list_head_elt;
- u32 session_index;
+ clib_bihash_kv_8_8_t kv0;
snat_session_key_t key1;
u32 address_index = ~0;
u32 outside_fib_index;
@@ -285,185 +279,44 @@ static u32 slow_path (snat_main_t *sm, vlib_buffer_t *b0,
outside_fib_index = p[0];
key1.protocol = key0->protocol;
- user_key.addr = ip0->src_address;
- user_key.fib_index = rx_fib_index0;
- kv0.key = user_key.as_u64;
- /* Ever heard of the "user" = src ip4 address before? */
- if (clib_bihash_search_8_8 (&sm->per_thread_data[thread_index].user_hash,
- &kv0, &value0))
+ u = nat_user_get_or_create (sm, &ip0->src_address, rx_fib_index0,
+ thread_index);
+ if (!u)
{
- /* no, make a new one */
- pool_get (sm->per_thread_data[thread_index].users, u);
- memset (u, 0, sizeof (*u));
- u->addr = ip0->src_address;
- u->fib_index = rx_fib_index0;
-
- pool_get (sm->per_thread_data[thread_index].list_pool, per_user_list_head_elt);
-
- u->sessions_per_user_list_head_index = per_user_list_head_elt -
- sm->per_thread_data[thread_index].list_pool;
-
- clib_dlist_init (sm->per_thread_data[thread_index].list_pool,
- u->sessions_per_user_list_head_index);
-
- kv0.value = u - sm->per_thread_data[thread_index].users;
-
- /* add user */
- clib_bihash_add_del_8_8 (&sm->per_thread_data[thread_index].user_hash,
- &kv0, 1 /* is_add */);
+ clib_warning ("create NAT user failed");
+ return SNAT_IN2OUT_NEXT_DROP;
}
- else
+
+ s = nat_session_alloc_or_recycle (sm, u, thread_index);
+ if (!s)
{
- u = pool_elt_at_index (sm->per_thread_data[thread_index].users,
- value0.value);
+ clib_warning ("create NAT session failed");
+ return SNAT_IN2OUT_NEXT_DROP;
}
- /* Over quota? Recycle the least recently used dynamic translation */
- if (u->nsessions >= sm->max_translations_per_user)
+ /* First try to match static mapping by local address and port */
+ if (snat_static_mapping_match (sm, *key0, &key1, 0, 0, 0))
{
- /* Remove the oldest dynamic translation */
- do {
- oldest_per_user_translation_list_index =
- clib_dlist_remove_head (sm->per_thread_data[thread_index].list_pool,
- u->sessions_per_user_list_head_index);
-
- ASSERT (oldest_per_user_translation_list_index != ~0);
-
- /* add it back to the end of the LRU list */
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- u->sessions_per_user_list_head_index,
- oldest_per_user_translation_list_index);
- /* Get the list element */
- oldest_per_user_translation_list_elt =
- pool_elt_at_index (sm->per_thread_data[thread_index].list_pool,
- oldest_per_user_translation_list_index);
-
- /* Get the session index from the list element */
- session_index = oldest_per_user_translation_list_elt->value;
-
- /* Get the session */
- s = pool_elt_at_index (sm->per_thread_data[thread_index].sessions,
- session_index);
- } while (snat_is_session_static (s));
-
- if (snat_is_unk_proto_session (s))
- {
- clib_bihash_kv_16_8_t up_kv;
- nat_ed_ses_key_t key;
-
- /* Remove from lookup tables */
- key.l_addr = s->in2out.addr;
- key.r_addr = s->ext_host_addr;
- key.fib_index = s->in2out.fib_index;
- key.proto = s->in2out.port;
- key.rsvd = 0;
- key.l_port = 0;
- up_kv.key[0] = key.as_u64[0];
- up_kv.key[1] = key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->in2out_ed, &up_kv, 0))
- clib_warning ("in2out key del failed");
-
- key.l_addr = s->out2in.addr;
- key.fib_index = s->out2in.fib_index;
- up_kv.key[0] = key.as_u64[0];
- up_kv.key[1] = key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &up_kv, 0))
- clib_warning ("out2in key del failed");
- }
- else
- {
- /* Remove in2out, out2in keys */
- kv0.key = s->in2out.as_u64;
- if (clib_bihash_add_del_8_8 (&sm->per_thread_data[thread_index].in2out,
- &kv0, 0 /* is_add */))
- clib_warning ("in2out key delete failed");
- kv0.key = s->out2in.as_u64;
- if (clib_bihash_add_del_8_8 (&sm->per_thread_data[thread_index].out2in,
- &kv0, 0 /* is_add */))
- clib_warning ("out2in key delete failed");
-
- /* log NAT event */
- snat_ipfix_logging_nat44_ses_delete(s->in2out.addr.as_u32,
- s->out2in.addr.as_u32,
- s->in2out.protocol,
- s->in2out.port,
- s->out2in.port,
- s->in2out.fib_index);
-
- snat_free_outside_address_and_port
- (sm->addresses, thread_index, &s->out2in, s->outside_address_index);
- }
- s->outside_address_index = ~0;
-
+ /* Try to create dynamic translation */
if (snat_alloc_outside_address_and_port (sm->addresses, rx_fib_index0,
thread_index, &key1,
&address_index,
sm->port_per_thread,
sm->per_thread_data[thread_index].snat_thread_index))
{
- ASSERT(0);
-
b0->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
return SNAT_IN2OUT_NEXT_DROP;
}
- s->outside_address_index = address_index;
+ u->nsessions++;
}
else
{
- u8 static_mapping = 1;
-
- /* First try to match static mapping by local address and port */
- if (snat_static_mapping_match (sm, *key0, &key1, 0, 0))
- {
- static_mapping = 0;
- /* Try to create dynamic translation */
- if (snat_alloc_outside_address_and_port (sm->addresses, rx_fib_index0,
- thread_index, &key1,
- &address_index,
- sm->port_per_thread,
- sm->per_thread_data[thread_index].snat_thread_index))
- {
- b0->error = node->errors[SNAT_IN2OUT_ERROR_OUT_OF_PORTS];
- return SNAT_IN2OUT_NEXT_DROP;
- }
- }
-
- /* Create a new session */
- pool_get (sm->per_thread_data[thread_index].sessions, s);
- memset (s, 0, sizeof (*s));
-
- s->outside_address_index = address_index;
-
- if (static_mapping)
- {
- u->nstaticsessions++;
- s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
- }
- else
- {
- u->nsessions++;
- }
-
- /* Create list elts */
- pool_get (sm->per_thread_data[thread_index].list_pool,
- per_user_translation_list_elt);
- clib_dlist_init (sm->per_thread_data[thread_index].list_pool,
- per_user_translation_list_elt -
- sm->per_thread_data[thread_index].list_pool);
-
- per_user_translation_list_elt->value =
- s - sm->per_thread_data[thread_index].sessions;
- s->per_user_index = per_user_translation_list_elt -
- sm->per_thread_data[thread_index].list_pool;
- s->per_user_list_head_index = u->sessions_per_user_list_head_index;
-
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s->per_user_list_head_index,
- per_user_translation_list_elt -
- sm->per_thread_data[thread_index].list_pool);
- }
+ u->nstaticsessions++;
+ s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
+ }
+ s->outside_address_index = address_index;
s->in2out = *key0;
s->out2in = key1;
s->out2in.protocol = key0->protocol;
@@ -677,7 +530,7 @@ u32 icmp_match_in2out_fast(snat_main_t *sm, vlib_node_runtime_t *node,
}
key0.fib_index = rx_fib_index0;
- if (snat_static_mapping_match(sm, key0, &sm0, 0, &is_addr_only))
+ if (snat_static_mapping_match(sm, key0, &sm0, 0, &is_addr_only, 0))
{
if (PREDICT_FALSE(snat_not_translate_fast(sm, node, sw_if_index0, ip0,
IP_PROTOCOL_ICMP, rx_fib_index0)))
@@ -873,7 +726,7 @@ snat_hairpinning (snat_main_t *sm,
kv0.key = key0.as_u64;
/* Check if destination is static mappings */
- if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0))
+ if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0, 0))
{
new_dst_addr0 = sm0.addr.as_u32;
new_dst_port0 = sm0.port;
@@ -974,7 +827,7 @@ snat_icmp_hairpinning (snat_main_t *sm,
&value0))
{
/* or static mappings */
- if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0))
+ if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0, 0))
{
new_dst_addr0 = sm0.addr.as_u32;
vnet_buffer(b0)->sw_if_index[VLIB_TX] = sm0.fib_index;
@@ -1032,15 +885,12 @@ static inline u32 icmp_in2out_slow_path (snat_main_t *sm,
s0->last_heard = now;
s0->total_pkts++;
s0->total_bytes += vlib_buffer_length_in_chain (sm->vlib_main, b0);
- /* Per-user LRU list maintenance for dynamic translations */
- if (!snat_is_session_static (s0))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_list_head_index,
- s0->per_user_index);
- }
+ /* Per-user LRU list maintenance */
+ clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_index);
+ clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_list_head_index,
+ s0->per_user_index);
}
return next0;
}
@@ -1063,7 +913,7 @@ snat_hairpinning_unknown_proto (snat_main_t *sm,
key.r_addr.as_u32 = ip->src_address.as_u32;
key.fib_index = sm->outside_fib_index;
key.proto = ip->protocol;
- key.rsvd = 0;
+ key.r_port = 0;
key.l_port = 0;
s_kv.key[0] = key.as_u64[0];
s_kv.key[1] = key.as_u64[1];
@@ -1115,11 +965,10 @@ snat_in2out_unknown_proto (snat_main_t *sm,
snat_session_key_t m_key;
u32 old_addr, new_addr = 0;
ip_csum_t sum;
- snat_user_key_t u_key;
snat_user_t *u;
- dlist_elt_t *head, *elt, *oldest;
+ dlist_elt_t *head, *elt;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- u32 elt_index, head_index, ses_index, oldest_index;
+ u32 elt_index, head_index, ses_index;
snat_session_t * s;
nat_ed_ses_key_t key;
u32 address_index = ~0;
@@ -1132,7 +981,7 @@ snat_in2out_unknown_proto (snat_main_t *sm,
key.r_addr = ip->dst_address;
key.fib_index = rx_fib_index;
key.proto = ip->protocol;
- key.rsvd = 0;
+ key.l_port = 0;
key.l_port = 0;
s_kv.key[0] = key.as_u64[0];
s_kv.key[1] = key.as_u64[1];
@@ -1150,33 +999,12 @@ snat_in2out_unknown_proto (snat_main_t *sm,
return 0;
}
- u_key.addr = ip->src_address;
- u_key.fib_index = rx_fib_index;
- kv.key = u_key.as_u64;
-
- /* Ever heard of the "user" = src ip4 address before? */
- if (clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ u = nat_user_get_or_create (sm, &ip->src_address, rx_fib_index,
+ thread_index);
+ if (!u)
{
- /* no, make a new one */
- pool_get (tsm->users, u);
- memset (u, 0, sizeof (*u));
- u->addr = ip->src_address;
- u->fib_index = rx_fib_index;
-
- pool_get (tsm->list_pool, head);
- u->sessions_per_user_list_head_index = head - tsm->list_pool;
-
- clib_dlist_init (tsm->list_pool,
- u->sessions_per_user_list_head_index);
-
- kv.value = u - tsm->users;
-
- /* add user */
- clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 1);
- }
- else
- {
- u = pool_elt_at_index (tsm->users, value.value);
+ clib_warning ("create NAT user failed");
+ return 0;
}
m_key.addr = ip->src_address;
@@ -1244,88 +1072,11 @@ snat_in2out_unknown_proto (snat_main_t *sm,
}
create_ses:
- /* Over quota? Recycle the least recently used dynamic translation */
- if (u->nsessions >= sm->max_translations_per_user && !is_sm)
+ s = nat_session_alloc_or_recycle (sm, u, thread_index);
+ if (!s)
{
- /* Remove the oldest dynamic translation */
- do {
- oldest_index = clib_dlist_remove_head (
- tsm->list_pool, u->sessions_per_user_list_head_index);
-
- ASSERT (oldest_index != ~0);
-
- /* add it back to the end of the LRU list */
- clib_dlist_addtail (tsm->list_pool,
- u->sessions_per_user_list_head_index,
- oldest_index);
- /* Get the list element */
- oldest = pool_elt_at_index (tsm->list_pool, oldest_index);
-
- /* Get the session index from the list element */
- ses_index = oldest->value;
-
- /* Get the session */
- s = pool_elt_at_index (tsm->sessions, ses_index);
- } while (snat_is_session_static (s));
-
- if (snat_is_unk_proto_session (s))
- {
- /* Remove from lookup tables */
- key.l_addr = s->in2out.addr;
- key.r_addr = s->ext_host_addr;
- key.fib_index = s->in2out.fib_index;
- key.proto = s->in2out.port;
- s_kv.key[0] = key.as_u64[0];
- s_kv.key[1] = key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->in2out_ed, &s_kv, 0))
- clib_warning ("in2out key del failed");
-
- key.l_addr = s->out2in.addr;
- key.fib_index = s->out2in.fib_index;
- s_kv.key[0] = key.as_u64[0];
- s_kv.key[1] = key.as_u64[1];
- if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &s_kv, 0))
- clib_warning ("out2in key del failed");
- }
- else
- {
- /* log NAT event */
- snat_ipfix_logging_nat44_ses_delete(s->in2out.addr.as_u32,
- s->out2in.addr.as_u32,
- s->in2out.protocol,
- s->in2out.port,
- s->out2in.port,
- s->in2out.fib_index);
-
- snat_free_outside_address_and_port (sm->addresses, thread_index,
- &s->out2in,
- s->outside_address_index);
-
- /* Remove in2out, out2in keys */
- kv.key = s->in2out.as_u64;
- if (clib_bihash_add_del_8_8 (
- &sm->per_thread_data[thread_index].in2out, &kv, 0))
- clib_warning ("in2out key del failed");
- kv.key = s->out2in.as_u64;
- if (clib_bihash_add_del_8_8 (
- &sm->per_thread_data[thread_index].out2in, &kv, 0))
- clib_warning ("out2in key del failed");
- }
- }
- else
- {
- /* Create a new session */
- pool_get (tsm->sessions, s);
- memset (s, 0, sizeof (*s));
-
- /* Create list elts */
- pool_get (tsm->list_pool, elt);
- clib_dlist_init (tsm->list_pool, elt - tsm->list_pool);
- elt->value = s - tsm->sessions;
- s->per_user_index = elt - tsm->list_pool;
- s->per_user_list_head_index = u->sessions_per_user_list_head_index;
- clib_dlist_addtail (tsm->list_pool, s->per_user_list_head_index,
- s->per_user_index);
+ clib_warning ("create NAT session failed");
+ return 0;
}
s->ext_host_addr.as_u32 = ip->dst_address.as_u32;
@@ -1410,10 +1161,7 @@ snat_in2out_lb (snat_main_t *sm,
ip_csum_t sum;
u32 proto = ip_proto_to_snat_proto (ip->protocol);
snat_session_key_t e_key, l_key;
- clib_bihash_kv_8_8_t kv, value;
- snat_user_key_t u_key;
snat_user_t *u;
- dlist_elt_t *head, *elt;
old_addr = ip->src_address.as_u32;
@@ -1421,7 +1169,7 @@ snat_in2out_lb (snat_main_t *sm,
key.r_addr = ip->dst_address;
key.fib_index = rx_fib_index;
key.proto = ip->protocol;
- key.rsvd = 0;
+ key.r_port = udp->dst_port;
key.l_port = udp->src_port;
s_kv.key[0] = key.as_u64[0];
s_kv.key[1] = key.as_u64[1];
@@ -1442,43 +1190,24 @@ snat_in2out_lb (snat_main_t *sm,
l_key.port = udp->src_port;
l_key.protocol = proto;
l_key.fib_index = rx_fib_index;
- if (snat_static_mapping_match(sm, l_key, &e_key, 0, 0))
+ if (snat_static_mapping_match(sm, l_key, &e_key, 0, 0, 0))
return 0;
- u_key.addr = ip->src_address;
- u_key.fib_index = rx_fib_index;
- kv.key = u_key.as_u64;
-
- /* Ever heard of the "user" = src ip4 address before? */
- if (clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ u = nat_user_get_or_create (sm, &ip->src_address, rx_fib_index,
+ thread_index);
+ if (!u)
{
- /* no, make a new one */
- pool_get (tsm->users, u);
- memset (u, 0, sizeof (*u));
- u->addr = ip->src_address;
- u->fib_index = rx_fib_index;
-
- pool_get (tsm->list_pool, head);
- u->sessions_per_user_list_head_index = head - tsm->list_pool;
-
- clib_dlist_init (tsm->list_pool,
- u->sessions_per_user_list_head_index);
-
- kv.value = u - tsm->users;
-
- /* add user */
- if (clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 1))
- clib_warning ("user key add failed");
+ clib_warning ("create NAT user failed");
+ return 0;
}
- else
+
+ s = nat_session_alloc_or_recycle (sm, u, thread_index);
+ if (!s)
{
- u = pool_elt_at_index (tsm->users, value.value);
+ clib_warning ("create NAT session failed");
+ return 0;
}
- /* Create a new session */
- pool_get (tsm->sessions, s);
- memset (s, 0, sizeof (*s));
-
s->ext_host_addr.as_u32 = ip->dst_address.as_u32;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING;
@@ -1487,15 +1216,6 @@ snat_in2out_lb (snat_main_t *sm,
s->out2in = e_key;
u->nstaticsessions++;
- /* Create list elts */
- pool_get (tsm->list_pool, elt);
- clib_dlist_init (tsm->list_pool, elt - tsm->list_pool);
- elt->value = s - tsm->sessions;
- s->per_user_index = elt - tsm->list_pool;
- s->per_user_list_head_index = u->sessions_per_user_list_head_index;
- clib_dlist_addtail (tsm->list_pool, s->per_user_list_head_index,
- s->per_user_index);
-
/* Add to lookup tables */
s_kv.value = s - tsm->sessions;
if (clib_bihash_add_del_16_8 (&sm->in2out_ed, &s_kv, 1))
@@ -1515,6 +1235,9 @@ snat_in2out_lb (snat_main_t *sm,
/* Update IP checksum */
sum = ip->checksum;
sum = ip_csum_update (sum, old_addr, new_addr, ip4_header_t, src_address);
+ if (is_twice_nat_session (s))
+ sum = ip_csum_update (sum, ip->dst_address.as_u32,
+ s->ext_host_addr.as_u32, ip4_header_t, dst_address);
ip->checksum = ip_csum_fold (sum);
if (PREDICT_TRUE(proto == SNAT_PROTOCOL_TCP))
@@ -1526,11 +1249,26 @@ snat_in2out_lb (snat_main_t *sm,
sum = tcp->checksum;
sum = ip_csum_update (sum, old_addr, new_addr, ip4_header_t, src_address);
sum = ip_csum_update (sum, old_port, new_port, ip4_header_t, length);
+ if (is_twice_nat_session (s))
+ {
+ sum = ip_csum_update (sum, ip->dst_address.as_u32,
+ s->ext_host_addr.as_u32, ip4_header_t,
+ dst_address);
+ sum = ip_csum_update (sum, tcp->dst_port, s->ext_host_port,
+ ip4_header_t, length);
+ tcp->dst_port = s->ext_host_port;
+ ip->dst_address.as_u32 = s->ext_host_addr.as_u32;
+ }
tcp->checksum = ip_csum_fold(sum);
}
else
{
udp->src_port = s->out2in.port;
+ if (is_twice_nat_session (s))
+ {
+ udp->dst_port = s->ext_host_port;
+ ip->dst_address.as_u32 = s->ext_host_addr.as_u32;
+ }
udp->checksum = 0;
}
@@ -1541,6 +1279,10 @@ snat_in2out_lb (snat_main_t *sm,
s->last_heard = now;
s->total_pkts++;
s->total_bytes += vlib_buffer_length_in_chain (vm, b);
+ /* Per-user LRU list maintenance */
+ clib_dlist_remove (tsm->list_pool, s->per_user_index);
+ clib_dlist_addtail (tsm->list_pool, s->per_user_list_head_index,
+ s->per_user_index);
return s;
}
@@ -1773,15 +1515,12 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
s0->last_heard = now;
s0->total_pkts++;
s0->total_bytes += vlib_buffer_length_in_chain (vm, b0);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s0))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_list_head_index,
- s0->per_user_index);
- }
+ /* Per-user LRU list maintenance */
+ clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_index);
+ clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_list_head_index,
+ s0->per_user_index);
trace00:
if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
@@ -1953,15 +1692,12 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
s1->last_heard = now;
s1->total_pkts++;
s1->total_bytes += vlib_buffer_length_in_chain (vm, b1);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s1))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s1->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s1->per_user_list_head_index,
- s1->per_user_index);
- }
+ /* Per-user LRU list maintenance */
+ clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
+ s1->per_user_index);
+ clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
+ s1->per_user_list_head_index,
+ s1->per_user_index);
trace01:
if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
@@ -2170,15 +1906,12 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
s0->last_heard = now;
s0->total_pkts++;
s0->total_bytes += vlib_buffer_length_in_chain (vm, b0);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s0))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_list_head_index,
- s0->per_user_index);
- }
+ /* Per-user LRU list maintenance */
+ clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_index);
+ clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_list_head_index,
+ s0->per_user_index);
trace0:
if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
@@ -2467,7 +2200,7 @@ nat44_reass_hairpinning (snat_main_t *sm,
udp0 = ip4_next_header (ip0);
/* Check if destination is static mappings */
- if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0))
+ if (!snat_static_mapping_match(sm, key0, &sm0, 1, 0, 0))
{
new_dst_addr0 = sm0.addr.as_u32;
new_dst_port0 = sm0.port;
@@ -2710,15 +2443,12 @@ nat44_in2out_reass_node_fn (vlib_main_t * vm,
s0->last_heard = now;
s0->total_pkts++;
s0->total_bytes += vlib_buffer_length_in_chain (vm, b0);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s0))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_list_head_index,
- s0->per_user_index);
- }
+ /* Per-user LRU list maintenance */
+ clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_index);
+ clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
+ s0->per_user_list_head_index,
+ s0->per_user_index);
trace0:
if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
@@ -3862,7 +3592,6 @@ snat_hairpin_dst_fn (vlib_main_t * vm,
}
vnet_buffer (b0)->snat.flags = SNAT_FLAG_HAIRPINNING;
- clib_warning("is hairpinning");
}
pkts_processed += next0 != SNAT_IN2OUT_NEXT_DROP;
@@ -4080,7 +3809,7 @@ snat_in2out_fast_static_map_fn (vlib_main_t * vm,
key0.port = udp0->src_port;
key0.fib_index = rx_fib_index0;
- if (snat_static_mapping_match(sm, key0, &sm0, 0, 0))
+ if (snat_static_mapping_match(sm, key0, &sm0, 0, 0, 0))
{
b0->error = node->errors[SNAT_IN2OUT_ERROR_NO_TRANSLATION];
next0= SNAT_IN2OUT_NEXT_DROP;