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netfilter: Add socket pointer to nf_hook_state.

Browse source 
It is currently always set to NULL, but nf_queue is adjusted to be
prepared for it being set to a real socket by taking and releasing a
reference to that socket when necessary.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Miller 2015-04-05 22:19:00 -04:00 • committed by David S. Miller
commit 1c984f8a5d
2 changed files with 10 additions and 1 deletions
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7
include/linux/netfilter.h
View file

@ -45,12 +45,15 @@ struct sk_buff;
struct nf_hook_ops;
struct sock;
struct nf_hook_state {
unsigned int hook;
int thresh;
u_int8_t pf;
struct net_device *in;
struct net_device *out;
struct sock *sk;
int (*okfn)(struct sk_buff *);
};
@ -59,6 +62,7 @@ static inline void nf_hook_state_init(struct nf_hook_state *p,
int thresh, u_int8_t pf,
struct net_device *indev,
struct net_device *outdev,
struct sock *sk,
int (*okfn)(struct sk_buff *))
{
p->hook = hook;
@ -66,6 +70,7 @@ static inline void nf_hook_state_init(struct nf_hook_state *p,
p->pf = pf;
p->in = indev;
p->out = outdev;
p->sk = sk;
p->okfn = okfn;
}
@ -160,7 +165,7 @@ static inline int nf_hook_thresh(u_int8_t pf, unsigned int hook,
struct nf_hook_state state;
nf_hook_state_init(&state, hook, thresh, pf,
indev, outdev, okfn);
indev, outdev, NULL, okfn);
return nf_hook_slow(skb, &state);
}
return 1;