X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fmpls%2Fmpls_tunnel.c;h=b7bcbfd14f764fdb33f92b0d67dc19a0c97cf7d0;hb=097fa66b986f06281f603767d321ab13ab6c88c3;hp=1d85c3bc78c344acc4260b126dff562f86ac6ea4;hpb=bdc0e6b7204ea0211d4f7881497e4306586fb9ef;p=vpp.git

diff --git a/src/vnet/mpls/mpls_tunnel.c b/src/vnet/mpls/mpls_tunnel.c
index 1d85c3bc78c..b7bcbfd14f7 100644
--- a/src/vnet/mpls/mpls_tunnel.c
+++ b/src/vnet/mpls/mpls_tunnel.c
@@ -62,7 +62,7 @@ static u8*
 mpls_tunnel_build_rewrite_i (void)
 {
     /*
-     * passing the adj code a NULL rewirte means 'i don't have one cos
+     * passing the adj code a NULL rewrite means 'i don't have one cos
      * t'other end is unresolved'. That's not the case here. For the mpls
      * tunnel there are just no bytes of encap to apply in the adj. We'll impose
      * the label stack once we choose a path. So return a zero length rewrite.
@@ -165,9 +165,12 @@ mpls_tunnel_mk_lb (mpls_tunnel_t *mt,
 
     lb_proto = fib_forw_chain_type_to_dpo_proto(fct);
 
-    fib_path_list_walk(mt->mt_path_list,
-                       mpls_tunnel_collect_forwarding,
-                       &ctx);
+    if (FIB_NODE_INDEX_INVALID != mt->mt_path_list)
+    {
+        fib_path_list_walk(mt->mt_path_list,
+                           mpls_tunnel_collect_forwarding,
+                           &ctx);
+    }
 
     if (!dpo_id_is_valid(dpo_lb))
     {
@@ -239,9 +242,15 @@ mpls_tunnel_stack (adj_index_t ai)
 
     mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
 
-    if (NULL == mt)
+    if (NULL == mt || FIB_NODE_INDEX_INVALID == mt->mt_path_list)
         return;
 
+    if (FIB_NODE_INDEX_INVALID == mt->mt_path_list)
+    {
+        adj_nbr_midchain_unstack(ai);
+        return;
+    }
+
     /*
      * while we're stacking the adj, remove the tunnel from the child list
      * of the path list. this breaks a circular dependency of walk updates
@@ -606,7 +615,7 @@ vnet_mpls_tunnel_create (u8 l2_only,
 
     vnm = vnet_get_main();
     pool_get(mpls_tunnel_pool, mt);
-    memset (mt, 0, sizeof (*mt));
+    clib_memset (mt, 0, sizeof (*mt));
     mti = mt - mpls_tunnel_pool;
     fib_node_init(&mt->mt_node, FIB_NODE_TYPE_MPLS_TUNNEL);
     mt->mt_path_list = FIB_NODE_INDEX_INVALID;
@@ -645,6 +654,7 @@ void
 vnet_mpls_tunnel_path_add (u32 sw_if_index,
                            fib_route_path_t *rpaths)
 {
+    fib_route_path_t *rpath;
     mpls_tunnel_t *mt;
     u32 mti;
 
@@ -686,10 +696,13 @@ vnet_mpls_tunnel_path_add (u32 sw_if_index,
          */
         fib_path_ext_list_resolve(&mt->mt_path_exts, mt->mt_path_list);
     }
-    fib_path_ext_list_insert(&mt->mt_path_exts,
-                             mt->mt_path_list,
-                             FIB_PATH_EXT_MPLS,
-                             rpaths);
+    vec_foreach(rpath, rpaths)
+    {
+        fib_path_ext_list_insert(&mt->mt_path_exts,
+                                 mt->mt_path_list,
+                                 FIB_PATH_EXT_MPLS,
+                                 rpath);
+    }
     mpls_tunnel_restack(mt);
 }
 
@@ -721,6 +734,7 @@ vnet_mpls_tunnel_path_remove (u32 sw_if_index,
 
         old_pl_index = mt->mt_path_list;
 
+        fib_path_list_lock(old_pl_index);
         mt->mt_path_list =
             fib_path_list_copy_and_path_remove(old_pl_index,
                                                FIB_PATH_LIST_FLAG_SHARED,
@@ -732,6 +746,7 @@ vnet_mpls_tunnel_path_remove (u32 sw_if_index,
         if (FIB_NODE_INDEX_INVALID == mt->mt_path_list)
         {
             /* no paths left */
+            fib_path_list_unlock(old_pl_index);
             return (0);
         }
         else
@@ -755,11 +770,24 @@ vnet_mpls_tunnel_path_remove (u32 sw_if_index,
                                   mt->mt_path_list);
 
         mpls_tunnel_restack(mt);
+        fib_path_list_unlock(old_pl_index);
    }
 
     return (fib_path_list_get_n_paths(mt->mt_path_list));
 }
 
+int
+vnet_mpls_tunnel_get_index (u32 sw_if_index)
+{
+    mpls_tunnel_t *mt;
+
+    mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
+
+    if (NULL == mt)
+        return (~0);
+
+    return (mt - mpls_tunnel_pool);
+}
 
 static clib_error_t *
 vnet_create_mpls_tunnel_command_fn (vlib_main_t * vm,
@@ -773,7 +801,7 @@ vnet_create_mpls_tunnel_command_fn (vlib_main_t * vm,
     u32 sw_if_index = ~0, payload_proto;
     clib_error_t *error = NULL;
 
-    memset(&rpath, 0, sizeof(rpath));
+    clib_memset(&rpath, 0, sizeof(rpath));
     payload_proto = DPO_PROTO_MPLS;
 
     /* Get a line of input. */
@@ -863,7 +891,7 @@ format_mpls_tunnel (u8 * s, va_list * args)
     mpls_tunnel_t *mt = va_arg (*args, mpls_tunnel_t *);
     mpls_tunnel_attribute_t attr;
 
-    s = format(s, "mpls_tunnel%d: sw_if_index:%d hw_if_index:%d",
+    s = format(s, "mpls-tunnel%d: sw_if_index:%d hw_if_index:%d",
                mt - mpls_tunnel_pool,
                mt->mt_sw_if_index,
                mt->mt_hw_if_index);