mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 01:34:14 +08:00
[NETFILTER]: nfnetlink: use netlink_run_queue()
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
a3c5029cf7
commit
73c361862c
@ -301,59 +301,16 @@ err_inval:
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Process one packet of messages. */
|
||||
static inline int nfnetlink_rcv_skb(struct sk_buff *skb)
|
||||
{
|
||||
int err;
|
||||
struct nlmsghdr *nlh;
|
||||
|
||||
while (skb->len >= NLMSG_SPACE(0)) {
|
||||
u32 rlen;
|
||||
|
||||
nlh = (struct nlmsghdr *)skb->data;
|
||||
if (nlh->nlmsg_len < sizeof(struct nlmsghdr)
|
||||
|| skb->len < nlh->nlmsg_len)
|
||||
return 0;
|
||||
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
|
||||
if (rlen > skb->len)
|
||||
rlen = skb->len;
|
||||
if (nfnetlink_rcv_msg(skb, nlh, &err)) {
|
||||
if (!err)
|
||||
return -1;
|
||||
netlink_ack(skb, nlh, err);
|
||||
} else
|
||||
if (nlh->nlmsg_flags & NLM_F_ACK)
|
||||
netlink_ack(skb, nlh, 0);
|
||||
skb_pull(skb, rlen);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void nfnetlink_rcv(struct sock *sk, int len)
|
||||
{
|
||||
do {
|
||||
struct sk_buff *skb;
|
||||
unsigned int qlen = 0;
|
||||
|
||||
do {
|
||||
if (nfnl_trylock())
|
||||
return;
|
||||
|
||||
while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
|
||||
if (nfnetlink_rcv_skb(skb)) {
|
||||
if (skb->len)
|
||||
skb_queue_head(&sk->sk_receive_queue,
|
||||
skb);
|
||||
else
|
||||
kfree_skb(skb);
|
||||
break;
|
||||
}
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
/* don't call nfnl_unlock, since it would reenter
|
||||
* with further packet processing */
|
||||
netlink_run_queue(sk, &qlen, nfnetlink_rcv_msg);
|
||||
__nfnl_unlock();
|
||||
} while(nfnl && nfnl->sk_receive_queue.qlen);
|
||||
} while (qlen);
|
||||
}
|
||||
|
||||
static void __exit nfnetlink_exit(void)
|
||||
|
Loading…
Reference in New Issue
Block a user