fib: add early config support for IP and IP6 default FIB table names

Type: improvement
Change-Id: I8c248d9e224bd069b641a174da57d448371470af
Signed-off-by: Jon Loeliger <jdl@netgate.com>
diff --git a/src/vnet/fib/ip6_fib.c b/src/vnet/fib/ip6_fib.c
index c40491c..d37b77e 100644
--- a/src/vnet/fib/ip6_fib.c
+++ b/src/vnet/fib/ip6_fib.c
@@ -873,6 +873,7 @@
 {
   uword heapsize = 0;
   u32 nbuckets = 0;
+  char *default_name = 0;
 
   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
     {
@@ -881,6 +882,8 @@
       else if (unformat (input, "heap-size %U",
 			 unformat_memory_size, &heapsize))
 	;
+      else if (unformat (input, "default-table-name %s", &default_name))
+	;
       else
 	return clib_error_return (0, "unknown input '%U'",
 				  format_unformat_error, input);
@@ -888,6 +891,7 @@
 
   ip6_fib_table_nbuckets = nbuckets;
   ip6_fib_table_size = heapsize;
+  fib_table_default_names[FIB_PROTOCOL_IP6] = default_name;
 
   return 0;
 }