sk_filter
Prev | Socket Filter | Next

## Name

sk_filter — run a packet through a socket filter

## Synopsis

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

## Arguments

`sk`

  sock 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.

Prev | Up | Next
Socket Filter | Home | sk_run_filter