diff options
| author | Thomas Graf <tgraf@suug.ch> | 2006-10-13 15:01:03 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-10-15 23:14:19 -0700 |
| commit | adaa70bbdfbc725e485179b06c8b23a20fbb7952 (patch) | |
| tree | c402d42c660163902e1667fd67a00de409ac4a68 /net/ipv6/fib6_rules.c | |
| parent | 918049f0135854a1583f9b3b88f44dbf2b027329 (diff) | |
| download | lwn-adaa70bbdfbc725e485179b06c8b23a20fbb7952.tar.gz lwn-adaa70bbdfbc725e485179b06c8b23a20fbb7952.zip | |
[IPv6] rules: Use RT6_LOOKUP_F_HAS_SADDR and fix source based selectors
Fixes rt6_lookup() to provide the source address in the flow
and sets RT6_LOOKUP_F_HAS_SADDR whenever it is present in
the flow.
Avoids unnecessary prefix comparisons by checking for a prefix
length first.
Fixes the rule logic to not match packets if a source selector
has been specified but no source address is available.
Thanks to Kim Nordlund <kim.nordlund@nokia.com> for working
on this patch with me.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/fib6_rules.c')
| -rw-r--r-- | net/ipv6/fib6_rules.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index d8c1057e8b00..1896ecb52899 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -117,12 +117,15 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags) { struct fib6_rule *r = (struct fib6_rule *) rule; - if (!ipv6_prefix_equal(&fl->fl6_dst, &r->dst.addr, r->dst.plen)) + if (r->dst.plen && + !ipv6_prefix_equal(&fl->fl6_dst, &r->dst.addr, r->dst.plen)) return 0; - if ((flags & RT6_LOOKUP_F_HAS_SADDR) && - !ipv6_prefix_equal(&fl->fl6_src, &r->src.addr, r->src.plen)) - return 0; + if (r->src.plen) { + if (!(flags & RT6_LOOKUP_F_HAS_SADDR) || + !ipv6_prefix_equal(&fl->fl6_src, &r->src.addr, r->src.plen)) + return 0; + } if (r->tclass && r->tclass != ((ntohl(fl->fl6_flowlabel) >> 20) & 0xff)) return 0; |