netfilter: add hook list to nf_hook_state

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 83be4a3..388ed19 100644 (file)
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -54,10 +54,12 @@ struct nf_hook_state {
        struct net_device *in;
        struct net_device *out;
        struct sock *sk;
+       struct list_head *hook_list;
        int (*okfn)(struct sock *, struct sk_buff *);
 };
 
 static inline void nf_hook_state_init(struct nf_hook_state *p,
+                                     struct list_head *hook_list,
                                      unsigned int hook,
                                      int thresh, u_int8_t pf,
                                      struct net_device *indev,
@@ -71,6 +73,7 @@ static inline void nf_hook_state_init(struct nf_hook_state *p,
        p->in = indev;
        p->out = outdev;
        p->sk = sk;
+       p->hook_list = hook_list;
        p->okfn = okfn;
 }
 
@@ -166,8 +169,8 @@ static inline int nf_hook_thresh(u_int8_t pf, unsigned int hook,
        if (nf_hooks_active(pf, hook)) {
                struct nf_hook_state state;
 
-               nf_hook_state_init(&state, hook, thresh, pf,
-                                  indev, outdev, sk, okfn);
+               nf_hook_state_init(&state, &nf_hooks[pf][hook], hook, thresh,
+                                  pf, indev, outdev, sk, okfn);
                return nf_hook_slow(skb, &state);
        }
        return 1;

diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index e616301..e418cfd 100644 (file)
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -166,11 +166,9 @@ int nf_hook_slow(struct sk_buff *skb, struct nf_hook_state *state)
        /* We may already have this, but read-locks nest anyway */
        rcu_read_lock();
 
-       elem = list_entry_rcu(&nf_hooks[state->pf][state->hook],
-                             struct nf_hook_ops, list);
+       elem = list_entry_rcu(state->hook_list, struct nf_hook_ops, list);
 next_hook:
-       verdict = nf_iterate(&nf_hooks[state->pf][state->hook], skb, state,
-                            &elem);
+       verdict = nf_iterate(state->hook_list, skb, state, &elem);
        if (verdict == NF_ACCEPT || verdict == NF_STOP) {
                ret = 1;
        } else if ((verdict & NF_VERDICT_MASK) == NF_DROP) {