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authorAvneesh Sachdev <avneesh@opensourcerouting.org>2012-04-09 00:25:15 -0700
committerAvneesh Sachdev <avneesh@opensourcerouting.org>2012-04-09 00:25:15 -0700
commit3cf6c2b4e43f44a977d218c96c26250654ae333e (patch)
treee017cde2015fbf3ef6c250327428d7c6152aa8f7 /lib/prefix.h
parent01d7ff0a2166a422c56bd26f04fc22832a9e690b (diff)
parente96b312150d8e376c1ef463793d1929eca3618d5 (diff)
Merge branch 'quagga' into google-bgp-multipath
Conflicts: bgpd/bgp_route.c
Diffstat (limited to 'lib/prefix.h')
-rw-r--r--lib/prefix.h27
1 files changed, 9 insertions, 18 deletions
diff --git a/lib/prefix.h b/lib/prefix.h
index 5f1ff05c..7f0d3607 100644
--- a/lib/prefix.h
+++ b/lib/prefix.h
@@ -112,6 +112,7 @@ struct prefix_rd
#define IPV4_NET0(a) ((((u_int32_t) (a)) & 0xff000000) == 0x00000000)
#define IPV4_NET127(a) ((((u_int32_t) (a)) & 0xff000000) == 0x7f000000)
#define IPV4_LINKLOCAL(a) ((((u_int32_t) (a)) & 0xffff0000) == 0xa9fe0000)
+#define IPV4_CLASS_DE(a) ((((u_int32_t) (a)) & 0xe0000000) == 0xe0000000)
/* Max bit/byte length of IPv6 address. */
#define IPV6_MAX_BYTELEN 16
@@ -127,26 +128,14 @@ struct prefix_rd
/* Prefix's family member. */
#define PREFIX_FAMILY(p) ((p)->family)
-/* Check bit of the prefix. */
-static inline unsigned int
-prefix_bit (const u_char *prefix, const u_char prefixlen)
-{
- unsigned int offset = prefixlen / 8;
- unsigned int shift = 7 - (prefixlen % 8);
-
- return (prefix[offset] >> shift) & 1;
-}
-
-static inline unsigned int
-prefix6_bit (const struct in6_addr *prefix, const u_char prefixlen)
-{
- return prefix_bit((const u_char *) &prefix->s6_addr, prefixlen);
-}
-
/* Prototypes. */
extern int afi2family (afi_t);
extern afi_t family2afi (int);
+/* Check bit of the prefix. */
+extern unsigned int prefix_bit (const u_char *prefix, const u_char prefixlen);
+extern unsigned int prefix6_bit (const struct in6_addr *prefix, const u_char prefixlen);
+
extern struct prefix *prefix_new (void);
extern void prefix_free (struct prefix *);
extern const char *prefix_family_str (const struct prefix *);
@@ -156,12 +145,14 @@ extern int prefix2str (const struct prefix *, char *, int);
extern int prefix_match (const struct prefix *, const struct prefix *);
extern int prefix_same (const struct prefix *, const struct prefix *);
extern int prefix_cmp (const struct prefix *, const struct prefix *);
+extern int prefix_common_bits (const struct prefix *, const struct prefix *);
extern void prefix_copy (struct prefix *dest, const struct prefix *src);
extern void apply_mask (struct prefix *);
extern struct prefix *sockunion2prefix (const union sockunion *dest,
const union sockunion *mask);
extern struct prefix *sockunion2hostprefix (const union sockunion *);
+extern void prefix2sockunion (const struct prefix *, union sockunion *);
extern struct prefix_ipv4 *prefix_ipv4_new (void);
extern void prefix_ipv4_free (struct prefix_ipv4 *);
@@ -175,7 +166,7 @@ extern int prefix_ipv4_any (const struct prefix_ipv4 *);
extern void apply_classful_mask_ipv4 (struct prefix_ipv4 *);
extern u_char ip_masklen (struct in_addr);
-extern void masklen2ip (int, struct in_addr *);
+extern void masklen2ip (const int, struct in_addr *);
/* returns the network portion of the host address */
extern in_addr_t ipv4_network_addr (in_addr_t hostaddr, int masklen);
/* given the address of a host on a network and the network mask length,
@@ -196,7 +187,7 @@ extern void apply_mask_ipv6 (struct prefix_ipv6 *);
*((struct prefix_ipv6 *)(DST)) = *((const struct prefix_ipv6 *)(SRC));
extern int ip6_masklen (struct in6_addr);
-extern void masklen2ip6 (int, struct in6_addr *);
+extern void masklen2ip6 (const int, struct in6_addr *);
extern void str2in6_addr (const char *, struct in6_addr *);
extern const char *inet6_ntoa (struct in6_addr);