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authorPablo Neira Ayuso <pablo@netfilter.org>2016-11-03 10:56:17 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2016-11-03 10:56:17 +0100
commit06fd3a392bb36ff162d10cb7d5794185b94edb2f (patch)
tree9b7b5a5b3f82e2b11f6cd903a724eb4829e0ce95 /net
parentnetfilter: kill NF_HOOK_THRESH() and state->tresh (diff)
downloadlinux-dev-06fd3a392bb36ff162d10cb7d5794185b94edb2f.tar.xz
linux-dev-06fd3a392bb36ff162d10cb7d5794185b94edb2f.zip
netfilter: deprecate NF_STOP
NF_STOP is only used by br_netfilter these days, and it can be emulated with a combination of NF_STOLEN plus explicit call to the ->okfn() function as Florian suggests. To retain binary compatibility with userspace nf_queue application, we have to keep NF_STOP around, so libnetfilter_queue userspace userspace applications still work if they use NF_STOP for some exotic reason. Out of tree modules using NF_STOP would break, but we don't care about those. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
-rw-r--r--net/bridge/br_netfilter_hooks.c6
-rw-r--r--net/netfilter/core.c2
2 files changed, 5 insertions, 3 deletions
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index d0d66faebe90..7e3645fa6339 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -845,8 +845,10 @@ static unsigned int ip_sabotage_in(void *priv,
struct sk_buff *skb,
const struct nf_hook_state *state)
{
- if (skb->nf_bridge && !skb->nf_bridge->in_prerouting)
- return NF_STOP;
+ if (skb->nf_bridge && !skb->nf_bridge->in_prerouting) {
+ state->okfn(state->net, state->sk, skb);
+ return NF_STOLEN;
+ }
return NF_ACCEPT;
}
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index cb0232c11bc8..14f97b624f98 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -333,7 +333,7 @@ int nf_hook_slow(struct sk_buff *skb, struct nf_hook_state *state)
entry = rcu_dereference(state->hook_entries);
next_hook:
verdict = nf_iterate(skb, state, &entry);
- if (verdict == NF_ACCEPT || verdict == NF_STOP) {
+ if (verdict == NF_ACCEPT) {
ret = 1;
} else if ((verdict & NF_VERDICT_MASK) == NF_DROP) {
kfree_skb(skb);