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-rwxr-xr-xsrc/plugins/nat/nat.c68
1 files changed, 66 insertions, 2 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index 8d02e5607c3..dabb8122adf 100755
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -1769,7 +1769,7 @@ snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
{
if (is_del)
{
- outside_fib->refcount--;
+ outside_fib->refcount--;
if (!outside_fib->refcount)
vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
}
@@ -1995,7 +1995,7 @@ snat_interface_add_del_output_feature (u32 sw_if_index,
{
if (is_del)
{
- outside_fib->refcount--;
+ outside_fib->refcount--;
if (!outside_fib->refcount)
vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
}
@@ -2144,6 +2144,65 @@ snat_set_workers (uword * bitmap)
return 0;
}
+static void
+snat_update_outside_fib (u32 sw_if_index, u32 new_fib_index,
+ u32 old_fib_index)
+{
+ snat_main_t *sm = &snat_main;
+ nat_outside_fib_t *outside_fib;
+ snat_interface_t *i;
+ u8 is_add = 1;
+
+ if (new_fib_index == old_fib_index)
+ return;
+
+ if (!vec_len (sm->outside_fibs))
+ return;
+
+ pool_foreach (i, sm->interfaces, (
+ {
+ if (i->sw_if_index == sw_if_index)
+ {
+ if (!(nat_interface_is_outside (i)))
+ return;}
+ }
+ ));
+ vec_foreach (outside_fib, sm->outside_fibs)
+ {
+ if (outside_fib->fib_index == old_fib_index)
+ {
+ outside_fib->refcount--;
+ if (!outside_fib->refcount)
+ vec_del1 (sm->outside_fibs, outside_fib - sm->outside_fibs);
+ break;
+ }
+ }
+
+ vec_foreach (outside_fib, sm->outside_fibs)
+ {
+ if (outside_fib->fib_index == new_fib_index)
+ {
+ outside_fib->refcount++;
+ is_add = 0;
+ break;
+ }
+ }
+
+ if (is_add)
+ {
+ vec_add2 (sm->outside_fibs, outside_fib, 1);
+ outside_fib->refcount = 1;
+ outside_fib->fib_index = new_fib_index;
+ }
+}
+
+static void
+snat_ip4_table_bind (ip4_main_t * im,
+ uword opaque,
+ u32 sw_if_index, u32 new_fib_index, u32 old_fib_index)
+{
+ snat_update_outside_fib (sw_if_index, new_fib_index, old_fib_index);
+}
static void
snat_ip4_add_del_interface_address_cb (ip4_main_t * im,
@@ -2272,6 +2331,11 @@ snat_init (vlib_main_t * vm)
nat66_init ();
+ ip4_table_bind_callback_t cbt4 = {
+ .function = snat_ip4_table_bind,
+ };
+ vec_add1 (ip4_main.table_bind_callbacks, cbt4);
+
/* Init virtual fragmenentation reassembly */
return nat_reass_init (vm);
}