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netfilter: x_tables: Pass struct net in xt_action_param

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As xt_action_param lives on the stack this does not bloat any
persistent data structures.

This is a first step in making netfilter code that needs to know
which network namespace it is executing in simpler.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Eric W. Biederman 2015-09-18 14:32:58 -05:00 • committed by Pablo Neira Ayuso
commit 156c196f60
8 changed files with 9 additions and 1 deletions
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3
include/linux/netfilter/x_tables.h
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@ -13,6 +13,7 @@
* @target: the target extension
* @matchinfo: per-match data
* @targetinfo: per-target data
* @net network namespace through which the action was invoked
* @in: input netdevice
* @out: output netdevice
* @fragoff: packet is a fragment, this is the data offset
@ -24,7 +25,6 @@
* Fields written to by extensions:
*
* @hotdrop: drop packet if we had inspection problems
* Network namespace obtainable using dev_net(in/out)
*/
struct xt_action_param {
union {
@ -34,6 +34,7 @@ struct xt_action_param {
union {
const void *matchinfo, *targinfo;
};
struct net *net;
const struct net_device *in, *out;
int fragoff;
unsigned int thoff;