diff options
Diffstat (limited to 'net/netfilter/nfnetlink.c')
| -rw-r--r-- | net/netfilter/nfnetlink.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index 77afe913d03d..a7ba23353dab 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -33,6 +33,10 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>"); MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_NETFILTER); +#define nfnl_dereference_protected(id) \ + rcu_dereference_protected(table[(id)].subsys, \ + lockdep_nfnl_is_held((id))) + static char __initdata nfversion[] = "0.30"; static struct { @@ -49,6 +53,7 @@ static const int nfnl_group2type[NFNLGRP_MAX+1] = { [NFNLGRP_CONNTRACK_EXP_DESTROY] = NFNL_SUBSYS_CTNETLINK_EXP, [NFNLGRP_NFTABLES] = NFNL_SUBSYS_NFTABLES, [NFNLGRP_ACCT_QUOTA] = NFNL_SUBSYS_ACCT, + [NFNLGRP_NFTRACE] = NFNL_SUBSYS_NFTABLES, }; void nfnl_lock(__u8 subsys_id) @@ -201,19 +206,18 @@ replay: } if (nc->call_rcu) { - err = nc->call_rcu(net->nfnl, skb, nlh, + err = nc->call_rcu(net, net->nfnl, skb, nlh, (const struct nlattr **)cda); rcu_read_unlock(); } else { rcu_read_unlock(); nfnl_lock(subsys_id); - if (rcu_dereference_protected(table[subsys_id].subsys, - lockdep_is_held(&table[subsys_id].mutex)) != ss || + if (nfnl_dereference_protected(subsys_id) != ss || nfnetlink_find_client(type, ss) != nc) err = -EAGAIN; else if (nc->call) - err = nc->call(net->nfnl, skb, nlh, - (const struct nlattr **)cda); + err = nc->call(net, net->nfnl, skb, nlh, + (const struct nlattr **)cda); else err = -EINVAL; nfnl_unlock(subsys_id); @@ -296,15 +300,13 @@ replay: return netlink_ack(oskb, nlh, -ENOMEM); nfnl_lock(subsys_id); - ss = rcu_dereference_protected(table[subsys_id].subsys, - lockdep_is_held(&table[subsys_id].mutex)); + ss = nfnl_dereference_protected(subsys_id); if (!ss) { #ifdef CONFIG_MODULES nfnl_unlock(subsys_id); request_module("nfnetlink-subsys-%d", subsys_id); nfnl_lock(subsys_id); - ss = rcu_dereference_protected(table[subsys_id].subsys, - lockdep_is_held(&table[subsys_id].mutex)); + ss = nfnl_dereference_protected(subsys_id); if (!ss) #endif { @@ -423,15 +425,15 @@ next: } done: if (status & NFNL_BATCH_REPLAY) { - ss->abort(oskb); + ss->abort(net, oskb); nfnl_err_reset(&err_list); nfnl_unlock(subsys_id); kfree_skb(skb); goto replay; } else if (status == NFNL_BATCH_DONE) { - ss->commit(oskb); + ss->commit(net, oskb); } else { - ss->abort(oskb); + ss->abort(net, oskb); } nfnl_err_deliver(&err_list, oskb); |