From 4b7fd5d97ee6e599247b4a55122ca6ba80c8148d Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 2 Oct 2014 11:13:21 +0200 Subject: 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 --- net/netfilter/xt_physdev.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/netfilter') diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c index d7ca16b8b8df..f440f57a452f 100644 --- a/net/netfilter/xt_physdev.c +++ b/net/netfilter/xt_physdev.c @@ -13,6 +13,7 @@ #include #include #include +#include MODULE_LICENSE("GPL"); MODULE_AUTHOR("Bart De Schuymer "); @@ -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; -- cgit v1.2.3-59-g8ed1b