X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fip%2Fip.c;h=144bbcc405d8480aae95389210a4674fd55a416e;hb=bf9f02cd395387bc596f1dab5e3566f6c5573eda;hp=e6d99347dc0ad73e989688d502df8e20dd591475;hpb=1c7104514cd40d2377caca36cf40c13b791bc5aa;p=vpp.git

diff --git a/src/vnet/ip/ip.c b/src/vnet/ip/ip.c
index e6d99347dc0..144bbcc405d 100644
--- a/src/vnet/ip/ip.c
+++ b/src/vnet/ip/ip.c
@@ -31,7 +31,21 @@ ip_is_local_host (ip46_address_t * ip46_address, u8 is_ip4)
   if (is_ip4)
     return (ip46_address->ip4.as_u8[0] == 127);
   else
-    return (ip46_address->as_u64[0] == 0 && ip46_address->as_u64[1] == 1);
+    return (ip46_address->as_u64[0] == 0 &&
+	    clib_net_to_host_u64 (ip46_address->as_u64[1]) == 1);
+}
+
+u8
+ip4_is_local_host (ip4_address_t * ip4_address)
+{
+  return (ip4_address->as_u8[0] == 127);
+}
+
+u8
+ip6_is_local_host (ip6_address_t * ip6_address)
+{
+  return (ip6_address->as_u64[0] == 0 &&
+	  clib_net_to_host_u64 (ip6_address->as_u64[1]) == 1);
 }
 
 /**
@@ -57,7 +71,7 @@ ip_is_local (u32 fib_index, ip46_address_t * ip46_address, u8 is_ip4)
     }
 
   clib_memcpy (&prefix.fp_addr, ip46_address, sizeof (ip46_address_t));
-  fei = fib_table_lookup (0, &prefix);
+  fei = fib_table_lookup (fib_index, &prefix);
   flags = fib_entry_get_flags (fei);
 
   return (flags & FIB_ENTRY_FLAG_LOCAL);
@@ -190,6 +204,8 @@ ip4_preflen_to_mask (u8 pref_len, ip4_address_t * ip)
 u32
 ip4_mask_to_preflen (ip4_address_t * mask)
 {
+  if (mask->as_u32 == 0)
+    return 0;
   return (32 - log2_first_set (clib_net_to_host_u32 (mask->as_u32)));
 }
 
@@ -228,15 +244,20 @@ ip6_prefix_max_address_host_order (ip6_address_t * ip, u8 plen,
 				   ip6_address_t * res)
 {
   u64 not_mask;
-  if (plen <= 64)
+  if (plen == 0)
+    {
+      res->as_u64[0] = 0xffffffffffffffffL;
+      res->as_u64[1] = 0xffffffffffffffffL;
+    }
+  else if (plen <= 64)
     {
-      not_mask = (1 << (64 - plen)) - 1;
+      not_mask = ((u64) 1 << (64 - plen)) - 1;
       res->as_u64[0] = clib_net_to_host_u64 (ip->as_u64[0]) + not_mask;
       res->as_u64[1] = 0xffffffffffffffffL;
     }
   else
     {
-      not_mask = (1 << (128 - plen)) - 1;
+      not_mask = ((u64) 1 << (128 - plen)) - 1;
       res->as_u64[1] = clib_net_to_host_u64 (ip->as_u64[1]) + not_mask;
     }
 }
@@ -246,9 +267,9 @@ ip6_mask_to_preflen (ip6_address_t * mask)
 {
   u8 first1, first0;
   if (mask->as_u64[0] == 0 && mask->as_u64[1] == 0)
-    return 128;
-  first1 = log2_first_set (mask->as_u64[1]);
-  first0 = log2_first_set (mask->as_u64[0]);
+    return 0;
+  first1 = log2_first_set (clib_net_to_host_u64 (mask->as_u64[1]));
+  first0 = log2_first_set (clib_net_to_host_u64 (mask->as_u64[0]));
 
   if (first1 != 0)
     return 128 - first1;