From 274d383b9c1906847a64bbb267b0183599ce86a0 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 2 Jun 2009 20:08:38 +0200 Subject: netfilter: conntrack: don't report events on module removal During the module removal there are no possible event listeners since ctnetlink must be removed before to allow removing nf_conntrack. This patch removes the event reporting for the module removal case which is not of any use in the existing code. Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_core.c | 15 ++++++++++----- net/netfilter/nf_conntrack_netlink.c | 6 +++--- 2 files changed, 13 insertions(+), 8 deletions(-) (limited to 'net/netfilter') diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 8020db6274b..f59c4edf905 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -1001,7 +1001,7 @@ struct __nf_ct_flush_report { int report; }; -static int kill_all(struct nf_conn *i, void *data) +static int kill_report(struct nf_conn *i, void *data) { struct __nf_ct_flush_report *fr = (struct __nf_ct_flush_report *)data; @@ -1013,6 +1013,11 @@ static int kill_all(struct nf_conn *i, void *data) return 1; } +static int kill_all(struct nf_conn *i, void *data) +{ + return 1; +} + void nf_ct_free_hashtable(void *hash, int vmalloced, unsigned int size) { if (vmalloced) @@ -1023,15 +1028,15 @@ void nf_ct_free_hashtable(void *hash, int vmalloced, unsigned int size) } EXPORT_SYMBOL_GPL(nf_ct_free_hashtable); -void nf_conntrack_flush(struct net *net, u32 pid, int report) +void nf_conntrack_flush_report(struct net *net, u32 pid, int report) { struct __nf_ct_flush_report fr = { .pid = pid, .report = report, }; - nf_ct_iterate_cleanup(net, kill_all, &fr); + nf_ct_iterate_cleanup(net, kill_report, &fr); } -EXPORT_SYMBOL_GPL(nf_conntrack_flush); +EXPORT_SYMBOL_GPL(nf_conntrack_flush_report); static void nf_conntrack_cleanup_init_net(void) { @@ -1045,7 +1050,7 @@ static void nf_conntrack_cleanup_net(struct net *net) nf_ct_event_cache_flush(net); nf_conntrack_ecache_fini(net); i_see_dead_people: - nf_conntrack_flush(net, 0, 0); + nf_ct_iterate_cleanup(net, kill_all, NULL); if (atomic_read(&net->ct.count) != 0) { schedule(); goto i_see_dead_people; diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 58fde0e47b0..3a20de1be63 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -777,9 +777,9 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb, err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_REPLY, u3); else { /* Flush the whole table */ - nf_conntrack_flush(&init_net, - NETLINK_CB(skb).pid, - nlmsg_report(nlh)); + nf_conntrack_flush_report(&init_net, + NETLINK_CB(skb).pid, + nlmsg_report(nlh)); return 0; } -- cgit v1.2.3-18-g5258