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| author | Patrick McHardy <kaber@trash.net> | 2006-03-20 18:03:16 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-20 18:03:16 -0800 |
| commit | f2ffd9eeda82b476c034d733be08ecf6a87d2edf (patch) | |
| tree | 05cbab3a8eb03184b7c924bb30ae7be0380336ad /include/net/ipv6.h | |
| parent | c49867347404c46f137a261643ed4fce4376f324 (diff) | |
| download | kernel-crypto-f2ffd9eeda82b476c034d733be08ecf6a87d2edf.tar.gz kernel-crypto-f2ffd9eeda82b476c034d733be08ecf6a87d2edf.tar.xz kernel-crypto-f2ffd9eeda82b476c034d733be08ecf6a87d2edf.zip | |
[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/net/ipv6.h')
| -rw-r--r-- | include/net/ipv6.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 3b1d963d396..c893a1ce4b3 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)); |