'\" t
.\"     Title: sk_filter
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: September 2016
.\"    Manual: Linux Networking
.\"    Source: Kernel Hackers Manual 3.16.36
.\"  Language: English
.\"
.TH "SK_FILTER" "9" "September 2016" "Kernel Hackers Manual 3\&.16\&" "Linux Networking"
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.SH "NAME"
sk_filter \- run a packet through a socket filter
.SH "SYNOPSIS"
.HP \w'int\ sk_filter('u
.BI "int sk_filter(struct\ sock\ *\ " "sk" ", struct\ sk_buff\ *\ " "skb" ");"
.SH "ARGUMENTS"
.PP
\fIsk\fR
.RS 4
sock associated with
sk_buff
.RE
.PP
\fIskb\fR
.RS 4
buffer to filter
.RE
.SH "DESCRIPTION"
.PP
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\&.
.SH "COPYRIGHT"
.br