1. NAME▲

sk_filter - run a packet through a socket filter

2. SYNOPSIS ▲

int sk_filter(struct sock *  sk , struct sk_buff *  skb );

3. ARGUMENTS ▲

sk
    sock associated with sk_buff

skb
    buffer to filter

4. 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.

5. COPYRIGHT ▲