ip: IP address and prefix types (moved from LISP)

Type: refactor

Change-Id: I2c6b59013bfd21136a2955442c779685f951932b
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 11 insertions, 288 deletions

diff --git a/src/vnet/lisp-cp/lisp_types.c b/src/vnet/lisp-cp/lisp_types.c
index cc2b1b2516f..90878654573 100644
--- a/src/vnet/lisp-cp/lisp_types.c
+++ b/src/vnet/lisp-cp/lisp_types.c
@@ -141,69 +141,6 @@ serdes_fct lcaf_parse_fcts[LCAF_TYPES] = {
 #undef _
 };
 
-u8 *
-format_ip_address (u8 * s, va_list * args)
-{
-  ip_address_t *a = va_arg (*args, ip_address_t *);
-  u8 ver = ip_addr_version (a);
-  if (ver == IP4)
-    {
-      return format (s, "%U", format_ip4_address, &ip_addr_v4 (a));
-    }
-  else if (ver == IP6)
-    {
-      return format (s, "%U", format_ip6_address, &ip_addr_v6 (a));
-    }
-  else
-    {
-      clib_warning ("Can't format IP version %d!", ver);
-      return 0;
-    }
-}
-
-uword
-unformat_ip_address (unformat_input_t * input, va_list * args)
-{
-  ip_address_t *a = va_arg (*args, ip_address_t *);
-
-  clib_memset (a, 0, sizeof (*a));
-  if (unformat (input, "%U", unformat_ip4_address, &ip_addr_v4 (a)))
-    ip_addr_version (a) = IP4;
-  else if (unformat_user (input, unformat_ip6_address, &ip_addr_v6 (a)))
-    ip_addr_version (a) = IP6;
-  else
-    return 0;
-  return 1;
-}
-
-u8 *
-format_ip_prefix (u8 * s, va_list * args)
-{
-  ip_prefix_t *a = va_arg (*args, ip_prefix_t *);
-  return format (s, "%U/%d", format_ip_address, &ip_prefix_addr (a),
-		 ip_prefix_len (a));
-}
-
-uword
-unformat_ip_prefix (unformat_input_t * input, va_list * args)
-{
-  ip_prefix_t *a = va_arg (*args, ip_prefix_t *);
-  if (unformat (input, "%U/%d", unformat_ip_address, &ip_prefix_addr (a),
-		&ip_prefix_len (a)))
-    {
-      if ((ip_prefix_version (a) == IP4 && 32 < ip_prefix_len (a)) ||
-	  (ip_prefix_version (a) == IP6 && 128 < ip_prefix_length (a)))
-	{
-	  clib_warning ("Prefix length to big: %d!", ip_prefix_len (a));
-	  return 0;
-	}
-      ip_prefix_normalize (a);
-    }
-  else
-    return 0;
-  return 1;
-}
-
 uword
 unformat_nsh_address (unformat_input_t * input, va_list * args)
 {
@@ -443,49 +380,10 @@ format_negative_mapping_action (u8 * s, va_list * args)
   return (s);
 }
 
-u16
-ip_address_size (const ip_address_t * a)
-{
-  switch (ip_addr_version (a))
-    {
-    case IP4:
-      return sizeof (ip4_address_t);
-      break;
-    case IP6:
-      return sizeof (ip6_address_t);
-      break;
-    }
-  return 0;
-}
-
-u16
-ip_version_to_size (u8 ver)
-{
-  switch (ver)
-    {
-    case IP4:
-      return sizeof (ip4_address_t);
-      break;
-    case IP6:
-      return sizeof (ip6_address_t);
-      break;
-    }
-  return 0;
-}
-
 u8
-ip_version_to_max_plen (u8 ver)
+ip_prefix_length (void *a)
 {
-  switch (ver)
-    {
-    case IP4:
-      return 32;
-      break;
-    case IP6:
-      return 128;
-      break;
-    }
-  return 0;
+  return ip_prefix_len ((ip_prefix_t *) a);
 }
 
 always_inline lisp_afi_e
@@ -493,9 +391,9 @@ ip_version_to_iana_afi (u16 version)
 {
   switch (version)
     {
-    case IP4:
+    case AF_IP4:
       return LISP_AFI_IP;
-    case IP6:
+    case AF_IP6:
       return LISP_AFI_IP6;
     default:
       return 0;
@@ -509,9 +407,9 @@ ip_iana_afi_to_version (lisp_afi_e afi)
   switch (afi)
     {
     case LISP_AFI_IP:
-      return IP4;
+      return AF_IP4;
     case LISP_AFI_IP6:
-      return IP6;
+      return AF_IP6;
     default:
       return 0;
     }
@@ -533,7 +431,7 @@ ip_address_iana_afi (ip_address_t * a)
 u8
 ip_address_max_len (u8 version)
 {
-  return version == IP4 ? 32 : 128;
+  return version == AF_IP4 ? 32 : 128;
 }
 
 u16
@@ -553,7 +451,7 @@ ip6_address_size_to_put ()
 u32
 ip4_address_put (u8 * b, ip4_address_t * a)
 {
-  *(u16 *) b = clib_host_to_net_u16 (ip_version_to_iana_afi (IP4));
+  *(u16 *) b = clib_host_to_net_u16 (ip_version_to_iana_afi (AF_IP4));
   u8 *p = b + sizeof (u16);
   clib_memcpy (p, a, sizeof (*a));
   return ip4_address_size_to_put ();
@@ -562,7 +460,7 @@ ip4_address_put (u8 * b, ip4_address_t * a)
 u32
 ip6_address_put (u8 * b, ip6_address_t * a)
 {
-  *(u16 *) b = clib_host_to_net_u16 (ip_version_to_iana_afi (IP6));
+  *(u16 *) b = clib_host_to_net_u16 (ip_version_to_iana_afi (AF_IP6));
   u8 *p = b + sizeof (u16);
   clib_memcpy (p, a, sizeof (*a));
   return ip6_address_size_to_put ();
@@ -850,145 +748,6 @@ gid_address_from_ip (gid_address_t * g, ip_address_t * ip)
   gid_address_ippref_len (g) = 32;
 }
 
-int
-ip_address_cmp (const ip_address_t * ip1, const ip_address_t * ip2)
-{
-  int res = 0;
-  if (ip_addr_version (ip1) != ip_addr_version (ip2))
-    return -1;
-  res =
-    memcmp (&ip_addr_addr (ip1), &ip_addr_addr (ip2), ip_address_size (ip1));
-
-  if (res < 0)
-    res = 2;
-  else if (res > 0)
-    res = 1;
-
-  return res;
-}
-
-void
-ip_address_copy (ip_address_t * dst, const ip_address_t * src)
-{
-  if (IP4 == ip_addr_version (src))
-    {
-      /* don't copy any garbage from the union */
-      clib_memset (dst, 0, sizeof (*dst));
-      dst->ip.v4 = src->ip.v4;
-      dst->version = IP4;
-    }
-  else
-    {
-      clib_memcpy (dst, src, sizeof (ip_address_t));
-    }
-}
-
-void
-ip_address_copy_addr (void *dst, const ip_address_t * src)
-{
-  clib_memcpy (dst, src, ip_address_size (src));
-}
-
-void
-ip_address_set (ip_address_t * dst, const void *src, u8 version)
-{
-  clib_memcpy (dst, src, ip_version_to_size (version));
-  ip_addr_version (dst) = version;
-}
-
-void
-ip_address_to_46 (const ip_address_t * addr,
-		  ip46_address_t * a, fib_protocol_t * proto)
-{
-  *proto = (IP4 == ip_addr_version (addr) ?
-	    FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
-  switch (*proto)
-    {
-    case FIB_PROTOCOL_IP4:
-      ip46_address_set_ip4 (a, &addr->ip.v4);
-      break;
-    case FIB_PROTOCOL_IP6:
-      a->ip6 = addr->ip.v6;
-      break;
-    default:
-      ASSERT (0);
-      break;
-    }
-}
-
-static void
-ip_prefix_normalize_ip4 (ip4_address_t * ip4, u8 preflen)
-{
-  u32 mask = ~0;
-
-  ASSERT (ip4);
-
-  if (32 <= preflen)
-    {
-      return;
-    }
-
-  mask = pow2_mask (preflen) << (32 - preflen);
-  mask = clib_host_to_net_u32 (mask);
-  ip4->data_u32 &= mask;
-}
-
-static void
-ip_prefix_normalize_ip6 (ip6_address_t * ip6, u8 preflen)
-{
-  u8 mask_6[16];
-  u32 *m;
-  u8 j, i0, i1;
-
-  ASSERT (ip6);
-
-  clib_memset (mask_6, 0, sizeof (mask_6));
-
-  if (128 <= preflen)
-    {
-      return;
-    }
-
-  i1 = preflen % 32;
-  i0 = preflen / 32;
-  m = (u32 *) & mask_6[0];
-
-  for (j = 0; j < i0; j++)
-    {
-      m[j] = ~0;
-    }
-
-  if (i1)
-    {
-      m[i0] = clib_host_to_net_u32 (pow2_mask (i1) << (32 - i1));
-    }
-
-  for (j = 0; j < sizeof (mask_6); j++)
-    {
-      ip6->as_u8[j] &= mask_6[j];
-    }
-}
-
-void
-ip_prefix_normalize (ip_prefix_t * a)
-{
-  u8 preflen = ip_prefix_len (a);
-
-  switch (ip_prefix_version (a))
-    {
-    case IP4:
-      ip_prefix_normalize_ip4 (&ip_prefix_v4 (a), preflen);
-      break;
-
-    case IP6:
-      ip_prefix_normalize_ip6 (&ip_prefix_v6 (a), preflen);
-      break;
-
-    default:
-      ASSERT (0);
-    }
-}
-
 void *
 ip_prefix_cast (gid_address_t * a)
 {
@@ -1010,28 +769,16 @@ ip_prefix_write (u8 * p, void *gid)
 
   switch (ip_prefix_version (a))
     {
-    case IP4:
+    case AF_IP4:
       return ip4_address_put (p, &ip_prefix_v4 (a));
       break;
-    case IP6:
+    case AF_IP6:
       return ip6_address_put (p, &ip_prefix_v6 (a));
       break;
     }
   return 0;
 }
 
-u8
-ip_prefix_length (void *a)
-{
-  return ip_prefix_len ((ip_prefix_t *) a);
-}
-
-void
-ip_prefix_copy (void *dst, void *src)
-{
-  clib_memcpy (dst, src, sizeof (ip_prefix_t));
-}
-
 void
 mac_copy (void *dst, void *src)
 {
@@ -1050,30 +797,6 @@ nsh_copy (void *dst, void *src)
   clib_memcpy (dst, src, sizeof (nsh_t));
 }
 
-int
-ip_prefix_cmp (ip_prefix_t * p1, ip_prefix_t * p2)
-{
-  int cmp = 0;
-
-  ip_prefix_normalize (p1);
-  ip_prefix_normalize (p2);
-
-  cmp = ip_address_cmp (&ip_prefix_addr (p1), &ip_prefix_addr (p2));
-  if (cmp == 0)
-    {
-      if (ip_prefix_len (p1) < ip_prefix_len (p2))
-	{
-	  cmp = 1;
-	}
-      else
-	{
-	  if (ip_prefix_len (p1) > ip_prefix_len (p2))
-	    cmp = 2;
-	}
-    }
-  return cmp;
-}
-
 void
 no_addr_copy (void *dst, void *src)
 {