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authorPatrick McHardy <kaber@trash.net>2006-03-21 02:03:16 (GMT)
committerDavid S. Miller <davem@davemloft.net>2006-03-21 02:03:16 (GMT)
commitf2ffd9eeda82b476c034d733be08ecf6a87d2edf (patch)
tree05cbab3a8eb03184b7c924bb30ae7be0380336ad /include
parentc49867347404c46f137a261643ed4fce4376f324 (diff)
downloadlinux-f2ffd9eeda82b476c034d733be08ecf6a87d2edf.tar.xz
[NETFILTER]: Move ip6_masked_addrcmp to include/net/ipv6.h
Replace netfilter's ip6_masked_addrcmp by a more efficient version in include/net/ipv6.h to make it usable without module dependencies. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/ipv6.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 3b1d963..c893a1c 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -282,6 +282,18 @@ static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr
return memcmp((const void *) a1, (const void *) a2, sizeof(struct in6_addr));
}
+static inline int
+ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m,
+ const struct in6_addr *a2)
+{
+ unsigned int i;
+
+ for (i = 0; i < 4; i++)
+ if ((a1->s6_addr32[i] ^ a2->s6_addr32[i]) & m->s6_addr32[i])
+ return 1;
+ return 0;
+}
+
static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
{
memcpy((void *) a1, (const void *) a2, sizeof(struct in6_addr));