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authorMatus Fabian <matfabia@cisco.com>2018-07-19 22:45:25 -0700
committerDamjan Marion <dmarion@me.com>2018-08-02 17:17:47 +0000
commitc6c0d2a077a77a126d642ff12dd326222cf13a7a (patch)
treeabcf965c9342a9fdb438e8c21386147850771b6a /src/plugins/nat/nat.c
parente4a9eb7873f140f88be7fffb83e1215fbf181116 (diff)
NAT44: LB NAT - local backends in multiple VRFs (VPP-1345)
Add support for local backends in multiple VRFs for load-balancing NAT rules. Change-Id: I64e6818bd67a7e69985003498cf1f16f7200c334 Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat.c')
-rwxr-xr-xsrc/plugins/nat/nat.c28
1 files changed, 12 insertions, 16 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index f35120663fb..cdf05fd351a 100755
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -1235,7 +1235,7 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
}
int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- snat_protocol_t proto, u32 vrf_id,
+ snat_protocol_t proto,
nat44_lb_addr_port_t *locals, u8 is_add,
twice_nat_type_t twice_nat, u8 out2in_only,
u8 *tag)
@@ -1244,7 +1244,6 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
snat_static_mapping_t *m;
snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
- u32 fib_index;
snat_address_t *a = 0;
int i;
nat44_lb_addr_port_t *local;
@@ -1277,10 +1276,6 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
if (vec_len (locals) < 2)
return VNET_API_ERROR_INVALID_VALUE;
- fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
- vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
-
/* Find external address in allocated addresses and reserve port for
address and port pair mapping when dynamic translations enabled */
if (!(sm->static_mapping_only || out2in_only))
@@ -1323,8 +1318,6 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m->tag = vec_dup (tag);
m->external_addr = e_addr;
m->addr_only = 0;
- m->vrf_id = vrf_id;
- m->fib_index = fib_index;
m->external_port = e_port;
m->proto = proto;
m->twice_nat = twice_nat;
@@ -1345,7 +1338,10 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m_key.fib_index = m->fib_index;
for (i = 0; i < vec_len (locals); i++)
{
+ locals[i].fib_index = fib_table_find_or_create_and_lock (
+ FIB_PROTOCOL_IP4, locals[i].vrf_id, FIB_SOURCE_PLUGIN_LOW);
m_key.addr = locals[i].addr;
+ m_key.fib_index = locals[i].fib_index;
if (!out2in_only)
{
m_key.port = locals[i].port;
@@ -1380,8 +1376,6 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
if (!m)
return VNET_API_ERROR_NO_SUCH_ENTRY;
- fib_table_unlock (m->fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_LOW);
-
/* Free external address port */
if (!(sm->static_mapping_only || out2in_only))
{
@@ -1425,11 +1419,13 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
vec_foreach (local, m->locals)
{
+ fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4,
+ FIB_SOURCE_PLUGIN_LOW);
m_key.addr = local->addr;
if (!out2in_only)
{
m_key.port = local->port;
- m_key.fib_index = m->fib_index;
+ m_key.fib_index = local->fib_index;
kv.key = m_key.as_u64;
if (clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0))
{
@@ -2207,15 +2203,16 @@ get_local:
}
mapping->addr = m->locals[lo].addr;
mapping->port = clib_host_to_net_u16 (m->locals[lo].port);
+ mapping->fib_index = m->locals[lo].fib_index;
}
else
{
+ mapping->fib_index = m->fib_index;
mapping->addr = m->local_addr;
/* Address only mapping doesn't change port */
mapping->port = m->addr_only ? match.port
: clib_host_to_net_u16 (m->local_port);
}
- mapping->fib_index = m->fib_index;
mapping->protocol = m->proto;
}
else
@@ -3083,17 +3080,16 @@ u8 * format_snat_static_mapping (u8 * s, va_list * args)
{
if (vec_len (m->locals))
{
- s = format (s, "%U vrf %d external %U:%d %s %s",
+ s = format (s, "%U external %U:%d %s %s",
format_snat_protocol, m->proto,
- m->vrf_id,
format_ip4_address, &m->external_addr, m->external_port,
m->twice_nat == TWICE_NAT ? "twice-nat" :
m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
m->out2in_only ? "out2in-only" : "");
vec_foreach (local, m->locals)
- s = format (s, "\n local %U:%d probability %d\%",
+ s = format (s, "\n local %U:%d vrf %d probability %d\%",
format_ip4_address, &local->addr, local->port,
- local->probability);
+ local->vrf_id, local->probability);
}
else
s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",