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netfilter: nf_conntrack: Support expectations in different zones 

When zones were originally introduced, the expectation functions were
all extended to perform lookup using the zone. However, insertion was
not modified to check the zone. This means that two expectations which
are intended to apply for different connections that have the same tuple
but exist in different zones cannot both be tracked.

Fixes: 5d0aa2ccd4 (netfilter: nf_conntrack: add support for "conntrack zones")
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Joe Stringer 2015-07-21 21:37:31 -07:00 committed by Pablo Neira Ayuso
parent b64f48dcda
commit 4b31814d20
1 changed files with 2 additions and 1 deletions
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3
net/netfilter/nf_conntrack_expect.c
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@ -219,7 +219,8 @@ static inline int expect_clash(const struct nf_conntrack_expect *a,
a->mask.src.u3.all[count] & b->mask.src.u3.all[count];
}
return nf_ct_tuple_mask_cmp(&a->tuple, &b->tuple, &intersect_mask);
return nf_ct_tuple_mask_cmp(&a->tuple, &b->tuple, &intersect_mask) &&
nf_ct_zone(a->master) == nf_ct_zone(b->master);
}
static inline int expect_matches(const struct nf_conntrack_expect *a,