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authorMatus Fabian <matfabia@cisco.com>2018-07-09 01:34:20 -0700
committerDamjan Marion <dmarion@me.com>2018-07-10 10:12:57 +0000
commit8008d7cdfcf71389c98d2968070b8cda1ed433f9 (patch)
treecb32c5d9d0fa42540a1f2c9e7e91902c62524ce7 /src/plugins/nat/nat.c
parentabec942075afceff8ad01015dccfb7cf70200015 (diff)
NAT44: multiple outside FIB tables (VPP-1314)
Change-Id: I56eb15f8fd2d3049845287dc3df7870582764f8b Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat.c')
-rwxr-xr-xsrc/plugins/nat/nat.c47
1 files changed, 39 insertions, 8 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index f236568db28..8dce3b96c50 100755
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -895,7 +895,7 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
m_key.addr = e_addr;
m_key.port = addr_only ? 0 : e_port;
m_key.protocol = addr_only ? 0 : proto;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
m = 0;
@@ -1031,7 +1031,7 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
m_key.addr = m->external_addr;
m_key.port = m->external_port;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1);
@@ -1130,7 +1130,7 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
m_key.addr = m->external_addr;
m_key.port = m->external_port;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0);
@@ -1244,7 +1244,7 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m_key.addr = e_addr;
m_key.port = e_port;
m_key.protocol = proto;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
m = 0;
@@ -1315,7 +1315,7 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m_key.addr = m->external_addr;
m_key.port = m->external_port;
m_key.protocol = m->proto;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1))
@@ -1397,7 +1397,7 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m_key.addr = m->external_addr;
m_key.port = m->external_port;
m_key.protocol = m->proto;
- m_key.fib_index = sm->outside_fib_index;
+ m_key.fib_index = 0;
kv.key = m_key.as_u64;
if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0))
{
@@ -1586,6 +1586,9 @@ int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
snat_address_t * ap;
snat_static_mapping_t * m;
snat_det_map_t * dm;
+ nat_outside_fib_t *outside_fib;
+ u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ sw_if_index);
if (sm->out2in_dpo && !is_inside)
return VNET_API_ERROR_UNSUPPORTED;
@@ -1618,6 +1621,31 @@ int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index,
NAT_FQ_NELTS);
+ if (!is_inside)
+ {
+ vec_foreach (outside_fib, sm->outside_fibs)
+ {
+ if (outside_fib->fib_index == fib_index)
+ {
+ if (is_del)
+ {
+ outside_fib->refcount--;
+ if (!outside_fib->refcount)
+ vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
+ }
+ else
+ outside_fib->refcount++;
+ goto feature_set;
+ }
+ }
+ if (!is_del)
+ {
+ vec_add2 (sm->outside_fibs, outside_fib, 1);
+ outside_fib->refcount = 1;
+ outside_fib->fib_index = fib_index;
+ }
+ }
+feature_set:
pool_foreach (i, sm->interfaces,
({
if (i->sw_if_index == sw_if_index)
@@ -2112,13 +2140,16 @@ int snat_static_mapping_match (snat_main_t * sm,
clib_bihash_8_8_t *mapping_hash = &sm->static_mapping_by_local;
u32 rand, lo = 0, hi, mid;
+ m_key.fib_index = match.fib_index;
if (by_external)
- mapping_hash = &sm->static_mapping_by_external;
+ {
+ mapping_hash = &sm->static_mapping_by_external;
+ m_key.fib_index = 0;
+ }
m_key.addr = match.addr;
m_key.port = clib_net_to_host_u16 (match.port);
m_key.protocol = match.protocol;
- m_key.fib_index = match.fib_index;
kv.key = m_key.as_u64;