diff options
| author |   Florian Westphal <fw@strlen.de> | 2016-05-06 00:51:47 +0200 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2016-05-06 11:50:01 +0200 |
| commit | 03d7dc5cdfe6fd4e5bd04cfc2be7ae259f956428 (patch) | |
| tree | 154c3f3f33680d9294dd10c50eb5217f2ace6887 /net/netfilter/nf_conntrack_expect.c | |
| parent | netfilter: nf_tables: allow set names up to 32 bytes (diff) | |
| download | linux-dev-03d7dc5cdfe6fd4e5bd04cfc2be7ae259f956428.tar.xz linux-dev-03d7dc5cdfe6fd4e5bd04cfc2be7ae259f956428.zip | |
netfilter: conntrack: check netns when walking expect hash
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_expect.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_expect.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c index c2f7c4f475b1..da95d740e60b 100644 --- a/net/netfilter/nf_conntrack_expect.c +++ b/net/netfilter/nf_conntrack_expect.c @@ -86,6 +86,17 @@ static unsigned int nf_ct_expect_dst_hash(const struct nf_conntrack_tuple *tuple return reciprocal_scale(hash, nf_ct_expect_hsize); } +static bool +nf_ct_exp_equal(const struct nf_conntrack_tuple *tuple, + const struct nf_conntrack_expect *i, + const struct nf_conntrack_zone *zone, + const struct net *net) +{ + return nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask) && + net_eq(net, nf_ct_net(i->master)) && + nf_ct_zone_equal_any(i->master, zone); +} + struct nf_conntrack_expect * __nf_ct_expect_find(struct net *net, const struct nf_conntrack_zone *zone, @@ -99,8 +110,7 @@ __nf_ct_expect_find(struct net *net, h = nf_ct_expect_dst_hash(tuple); hlist_for_each_entry_rcu(i, &net->ct.expect_hash[h], hnode) { - if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask) && - nf_ct_zone_equal_any(i->master, zone)) + if (nf_ct_exp_equal(tuple, i, zone, net)) return i; } return NULL; @@ -141,8 +151,7 @@ nf_ct_find_expectation(struct net *net, h = nf_ct_expect_dst_hash(tuple); hlist_for_each_entry(i, &net->ct.expect_hash[h], hnode) { if (!(i->flags & NF_CT_EXPECT_INACTIVE) && - nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask) && - nf_ct_zone_equal_any(i->master, zone)) { + nf_ct_exp_equal(tuple, i, zone, net)) { exp = i; break; } @@ -222,6 +231,7 @@ static inline int expect_clash(const struct nf_conntrack_expect *a, } return nf_ct_tuple_mask_cmp(&a->tuple, &b->tuple, &intersect_mask) && + net_eq(nf_ct_net(a->master), nf_ct_net(b->master)) && nf_ct_zone_equal_any(a->master, nf_ct_zone(b->master)); } @@ -231,6 +241,7 @@ static inline int expect_matches(const struct nf_conntrack_expect *a, return a->master == b->master && a->class == b->class && nf_ct_tuple_equal(&a->tuple, &b->tuple) && nf_ct_tuple_mask_equal(&a->mask, &b->mask) && + net_eq(nf_ct_net(a->master), nf_ct_net(b->master)) && nf_ct_zone_equal_any(a->master, nf_ct_zone(b->master)); } |