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| SK_FILTER(9) | Linux Networking | SK_FILTER(9) |
NAME¶
sk_filter - run a packet through a socket filterSYNOPSIS¶
int
sk_filter(struct sock * sk,
struct sk_buff * skb);
ARGUMENTS¶
sksock associated with sk_buff
skb
buffer to filter
DESCRIPTION¶
Run the filter code and then cut skb->data to correct size returned by sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller than pkt_len we keep whole skb->data. This is the socket level wrapper to sk_run_filter. It returns 0 if the packet should be accepted or -EPERM if the packet should be tossed.COPYRIGHT¶
| September 2016 | Kernel Hackers Manual 3.16 |