X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fadj%2Fadj_nbr.c;h=7acdccc72b09c10e4151212de05c0db027795adf;hb=d88fc0fcedb402e3dc82cb44280d4567a6a13266;hp=9e990e00f3b12553835f96ad666a867dac0902fb;hpb=37157d52794f7f5774435d7bd524e3f998213a8a;p=vpp.git

diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index 9e990e00f3b..7acdccc72b0 100644
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -452,6 +452,12 @@ adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
 	};
 
 	fib_walk_sync(FIB_NODE_TYPE_ADJ, walk_ai, &bw_ctx);
+	/*
+	 * fib_walk_sync may allocate a new adjacency and potentially cuase a
+	 * realloc for adj_pool. When that happens, adj pointer is no longer
+	 * valid here. We refresh the adj pointer accordingly.
+	 */
+	adj = adj_get (ai);
     }
 
     /*
@@ -907,15 +913,19 @@ adj_nbr_show (vlib_main_t * vm,
 	      vlib_cli_command_t * cmd)
 {
     adj_index_t ai = ADJ_INDEX_INVALID;
+    ip46_address_t nh = ip46_address_initializer;
     u32 sw_if_index = ~0;
 
     while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
     {
-	if (unformat (input, "%d", &ai))
+	if (unformat (input, "%U",
+                      unformat_vnet_sw_interface, vnet_get_main(),
+                      &sw_if_index))
 	    ;
 	else if (unformat (input, "%U",
-			   unformat_vnet_sw_interface, vnet_get_main(),
-			   &sw_if_index))
+			   unformat_ip46_address, &nh, IP46_TYPE_ANY))
+	    ;
+	else if (unformat (input, "%d", &ai))
 	    ;
 	else
 	    break;
@@ -932,12 +942,24 @@ adj_nbr_show (vlib_main_t * vm,
     {
 	fib_protocol_t proto;
 
-	for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++)
-	{
-	    adj_nbr_walk(sw_if_index, proto,
-			 adj_nbr_show_one,
-			 vm);
-	}
+        if (ip46_address_is_zero(&nh))
+        {
+            for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++)
+            {
+                adj_nbr_walk(sw_if_index, proto,
+                             adj_nbr_show_one,
+                             vm);
+            }
+        }
+        else
+        {
+            proto = (ip46_address_is_ip4(&nh) ?
+                     FIB_PROTOCOL_IP4 :
+                     FIB_PROTOCOL_IP6);
+            adj_nbr_walk_nh(sw_if_index, proto, &nh,
+                            adj_nbr_show_one,
+                            vm);
+        }
     }
     else
     {