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authorPablo Neira Ayuso <pablo@netfilter.org>2009-04-06 11:47:20 -0400
committerPatrick McHardy <kaber@trash.net>2009-04-06 11:47:20 -0400
commit83731671d9e6878c0a05d309c68fb71c16d3235a (patch)
treee74df7769d32c4aad6a080796f32a7e09009a7ae /include
parent3ae16f13027c26cb4c227392116c2027524a6444 (diff)
netfilter: ctnetlink: fix regression in expectation handling
This patch fixes a regression (introduced by myself in commit 19abb7b: netfilter: ctnetlink: deliver events for conntracks changed from userspace) that results in an expectation re-insertion since __nf_ct_expect_check() may return 0 for expectation timer refreshing. This patch also removes a unnecessary refcount bump that pretended to avoid a possible race condition with event delivery and expectation timers (as said, not needed since we hold a reference to the object since until we finish the expectation setup). This also merges nf_ct_expect_related_report() and nf_ct_expect_related() which look basically the same. Reported-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/netfilter/nf_conntrack_expect.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/net/netfilter/nf_conntrack_expect.h b/include/net/netfilter/nf_conntrack_expect.h
index ab17a159ac66..a9652806d0df 100644
--- a/include/net/netfilter/nf_conntrack_expect.h
+++ b/include/net/netfilter/nf_conntrack_expect.h
@@ -99,9 +99,12 @@ void nf_ct_expect_init(struct nf_conntrack_expect *, unsigned int, u_int8_t,
99 const union nf_inet_addr *, 99 const union nf_inet_addr *,
100 u_int8_t, const __be16 *, const __be16 *); 100 u_int8_t, const __be16 *, const __be16 *);
101void nf_ct_expect_put(struct nf_conntrack_expect *exp); 101void nf_ct_expect_put(struct nf_conntrack_expect *exp);
102int nf_ct_expect_related(struct nf_conntrack_expect *expect);
103int nf_ct_expect_related_report(struct nf_conntrack_expect *expect, 102int nf_ct_expect_related_report(struct nf_conntrack_expect *expect,
104 u32 pid, int report); 103 u32 pid, int report);
104static inline int nf_ct_expect_related(struct nf_conntrack_expect *expect)
105{
106 return nf_ct_expect_related_report(expect, 0, 0);
107}
105 108
106#endif /*_NF_CONNTRACK_EXPECT_H*/ 109#endif /*_NF_CONNTRACK_EXPECT_H*/
107 110