nat: documention fix

[vpp.git] / src / vnet / mpls / interface.c

diff --git a/src/vnet/mpls/interface.c b/src/vnet/mpls/interface.c
index fd075c9..fd654dc 100644 (file)
--- a/src/vnet/mpls/interface.c
+++ b/src/vnet/mpls/interface.c
@@ -22,6 +22,14 @@
 #include <vnet/adj/adj_midchain.h>
 #include <vnet/dpo/classify_dpo.h>
 
+typedef struct
+{
+  mpls_interface_state_change_function_t *function;
+  uword function_opaque;
+} mpls_interface_state_change_callback_t;
+
+/** Functions to call when interface becomes MPLS enabled/disabled. */
+static mpls_interface_state_change_callback_t *state_change_callbacks;
 
 u8
 mpls_sw_interface_is_enabled (u32 sw_if_index)
@@ -34,11 +42,20 @@ mpls_sw_interface_is_enabled (u32 sw_if_index)
     return (mm->mpls_enabled_by_sw_if_index[sw_if_index]);
 }
 
+void
+mpls_interface_state_change_add_callback (
+  mpls_interface_state_change_function_t *function, uword opaque)
+{
+  mpls_interface_state_change_callback_t cb = {
+    .function = function,
+    .function_opaque = opaque,
+  };
+  vec_add1 (state_change_callbacks, cb);
+}
+
 int
-mpls_sw_interface_enable_disable (mpls_main_t * mm,
-                                  u32 sw_if_index,
-                                  u8 is_enable,
-                                  u8 is_api)
+mpls_sw_interface_enable_disable (mpls_main_t *mm, u32 sw_if_index,
+                                 u8 is_enable)
 {
   fib_node_index_t lfib_index;
   vnet_main_t *vnm = vnet_get_main ();
@@ -60,8 +77,7 @@ mpls_sw_interface_enable_disable (mpls_main_t * mm,
       if (1 != ++mm->mpls_enabled_by_sw_if_index[sw_if_index])
           return (0);
 
-      fib_table_lock(lfib_index, FIB_PROTOCOL_MPLS,
-                     (is_api? FIB_SOURCE_API: FIB_SOURCE_CLI));
+      fib_table_lock (lfib_index, FIB_PROTOCOL_MPLS, FIB_SOURCE_INTERFACE);
 
       vec_validate(mm->fib_index_by_sw_if_index, sw_if_index);
       mm->fib_index_by_sw_if_index[sw_if_index] = lfib_index;
@@ -72,9 +88,8 @@ mpls_sw_interface_enable_disable (mpls_main_t * mm,
       if (0 != --mm->mpls_enabled_by_sw_if_index[sw_if_index])
           return (0);
 
-      fib_table_unlock(mm->fib_index_by_sw_if_index[sw_if_index],
-                      FIB_PROTOCOL_MPLS,
-                       (is_api? FIB_SOURCE_API: FIB_SOURCE_CLI));
+      fib_table_unlock (mm->fib_index_by_sw_if_index[sw_if_index],
+                       FIB_PROTOCOL_MPLS, FIB_SOURCE_INTERFACE);
     }
 
   vnet_feature_enable_disable ("mpls-input", "mpls-not-enabled",
@@ -85,6 +100,12 @@ mpls_sw_interface_enable_disable (mpls_main_t * mm,
   else if (hi->l3_if_count)
     hi->l3_if_count--;
 
+  {
+    mpls_interface_state_change_callback_t *cb;
+    vec_foreach (cb, state_change_callbacks)
+      cb->function (mm, cb->function_opaque, sw_if_index, is_enable);
+  }
+
   return (0);
 }
 
@@ -118,7 +139,7 @@ mpls_interface_enable_disable (vlib_main_t * vm,
       goto done;
     }
 
-  rv = mpls_sw_interface_enable_disable(&mpls_main, sw_if_index, enable, 0);
+  rv = mpls_sw_interface_enable_disable (&mpls_main, sw_if_index, enable);
 
   if (VNET_API_ERROR_NO_SUCH_FIB == rv)
       error = clib_error_return (0, "default MPLS table must be created first");
@@ -128,7 +149,7 @@ mpls_interface_enable_disable (vlib_main_t * vm,
 }
 
 /*?
- * This command enables an interface to accpet MPLS packets
+ * This command enables an interface to accept MPLS packets
  *
  * @cliexpar
  * @cliexstart{set interface mpls}