[IPV4] sctp: Use ipv4_is_<type>

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 30 deletions

diff --git a/include/net/sctp/constants.h b/include/net/sctp/constants.h
index 05f22a6afbcd..fefcba67bd1e 100644
--- a/include/net/sctp/constants.h
+++ b/include/net/sctp/constants.h
@@ -365,36 +365,12 @@ typedef enum {
  * Also, RFC 8.4, non-unicast addresses are not considered valid SCTP
  * addresses.
  */
-#define IS_IPV4_UNUSABLE_ADDRESS(a) \
-	((htonl(INADDR_BROADCAST) == *a) || \
-	(MULTICAST(*a)) || \
-	(((unsigned char *)(a))[0] == 0) || \
-	((((unsigned char *)(a))[0] == 198) && \
-	(((unsigned char *)(a))[1] == 18) && \
-	(((unsigned char *)(a))[2] == 0)) || \
-	((((unsigned char *)(a))[0] == 192) && \
-	(((unsigned char *)(a))[1] == 88) && \
-	(((unsigned char *)(a))[2] == 99)))
-
-/* IPv4 Link-local addresses: 169.254.0.0/16.  */
-#define IS_IPV4_LINK_ADDRESS(a) \
-	((((unsigned char *)(a))[0] == 169) && \
-	(((unsigned char *)(a))[1] == 254))
-
-/* RFC 1918 "Address Allocation for Private Internets" defines the IPv4
- * private address space as the following:
- *
- * 10.0.0.0 - 10.255.255.255 (10/8 prefix)
- * 172.16.0.0.0 - 172.31.255.255 (172.16/12 prefix)
- * 192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
- */
-#define IS_IPV4_PRIVATE_ADDRESS(a) \
-	((((unsigned char *)(a))[0] == 10) || \
-	((((unsigned char *)(a))[0] == 172) && \
-	(((unsigned char *)(a))[1] >= 16) && \
-	(((unsigned char *)(a))[1] < 32)) || \
-	((((unsigned char *)(a))[0] == 192) && \
-	(((unsigned char *)(a))[1] == 168)))
+#define IS_IPV4_UNUSABLE_ADDRESS(a)	    \
+	((htonl(INADDR_BROADCAST) == a) ||  \
+	 ipv4_is_multicast(a) ||	    \
+	 ipv4_is_zeronet(a) ||		    \
+	 ipv4_is_test_198(a) ||		    \
+	 ipv4_is_anycast_6to4(a))
 
 /* Flags used for the bind address copy functions.  */
 #define SCTP_ADDR6_ALLOWED	0x00000001	/* IPv6 address is allowed by