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author | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-10-02 11:13:21 +0200 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-10-02 18:30:57 +0200 |
commit | 4b7fd5d97ee6e599247b4a55122ca6ba80c8148d (patch) | |
tree | f79ecdd32fb619bcf982dcb493997f2285311a92 /net/netfilter/xt_physdev.c | |
parent | 36d2af5998258344993dd43729997a7a3baa9d99 (diff) | |
download | op-kernel-dev-4b7fd5d97ee6e599247b4a55122ca6ba80c8148d.zip op-kernel-dev-4b7fd5d97ee6e599247b4a55122ca6ba80c8148d.tar.gz |
netfilter: explicit module dependency between br_netfilter and physdev
You can use physdev to match the physical interface enslaved to the
bridge device. This information is stored in skb->nf_bridge and it is
set up by br_netfilter. So, this is only available when iptables is
used from the bridge netfilter path.
Since 34666d4 ("netfilter: bridge: move br_netfilter out of the core"),
the br_netfilter code is modular. To reduce the impact of this change,
we can autoload the br_netfilter if the physdev match is used since
we assume that the users need br_netfilter in place.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/xt_physdev.c')
-rw-r--r-- | net/netfilter/xt_physdev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c index d7ca16b..f440f57 100644 --- a/net/netfilter/xt_physdev.c +++ b/net/netfilter/xt_physdev.c @@ -13,6 +13,7 @@ #include <linux/netfilter_bridge.h> #include <linux/netfilter/xt_physdev.h> #include <linux/netfilter/x_tables.h> +#include <net/netfilter/br_netfilter.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>"); @@ -87,6 +88,8 @@ static int physdev_mt_check(const struct xt_mtchk_param *par) { const struct xt_physdev_info *info = par->matchinfo; + br_netfilter_enable(); + if (!(info->bitmask & XT_PHYSDEV_OP_MASK) || info->bitmask & ~XT_PHYSDEV_OP_MASK) return -EINVAL; |