'\" t
.\"     Title: eth_header
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: September 2017
.\"    Manual: Network device support
.\"    Source: Kernel Hackers Manual 4.12.13
.\"  Language: English
.\"
.TH "ETH_HEADER" "9" "September 2017" "Kernel Hackers Manual 4\&.12\&" "Network device support"
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.SH "NAME"
eth_header \- create the Ethernet header
.SH "SYNOPSIS"
.HP \w'int\ eth_header('u
.BI "int eth_header(struct\ sk_buff\ *\ " "skb" ", struct\ net_device\ *\ " "dev" ", unsigned\ short\ " "type" ", const\ void\ *\ " "daddr" ", const\ void\ *\ " "saddr" ", unsigned\ int\ " "len" ");"
.SH "ARGUMENTS"
.PP
\fIstruct sk_buff * skb\fR
.RS 4
buffer to alter
.RE
.PP
\fIstruct net_device * dev\fR
.RS 4
source device
.RE
.PP
\fIunsigned short type\fR
.RS 4
Ethernet type field
.RE
.PP
\fIconst void * daddr\fR
.RS 4
destination address (NULL leave destination address)
.RE
.PP
\fIconst void * saddr\fR
.RS 4
source address (NULL use device source address)
.RE
.PP
\fIunsigned int len\fR
.RS 4
packet length (<= skb\->len)
.RE
.SH "DESCRIPTION"
.PP
.PP
Set the protocol type\&. For a packet of type ETH_P_802_3/2 we put the length in here instead\&.
.SH "COPYRIGHT"
.br