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netfilter: nfacct: per network namespace support

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- Move the nfnl_acct_list into the network namespace, initialize
  and destroy it per namespace
- Keep track of refcnt on nfacct objects, the old logic does not
  longer work with a per namespace list
- Adjust xt_nfacct to pass the namespace when registring objects

Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Andreas Schultz 2015-08-05 17:51:45 +02:00 • committed by Pablo Neira Ayuso
parent d2168e849e
commit 3499abb249
4 changed files with 56 additions and 23 deletions
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3
include/net/net_namespace.h
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@ -118,6 +118,9 @@ struct net {
#endif
struct sock *nfnl;
struct sock *nfnl_stash;
#if IS_ENABLED(CONFIG_NETFILTER_NETLINK_ACCT)
struct list_head nfnl_acct_list;
#endif
#endif
#ifdef CONFIG_WEXT_CORE
struct sk_buff_head wext_nlevents;