'\" t
.\"     Title: ieee80211_get_hdrlen_from_skb
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Utility functions
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "IEEE80211_GET_HDRLEN" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Utility functions"
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.SH "NAME"
ieee80211_get_hdrlen_from_skb \- get header length from data
.SH "SYNOPSIS"
.HP \w'unsigned\ int\ ieee80211_get_hdrlen_from_skb('u
.BI "unsigned int ieee80211_get_hdrlen_from_skb(const\ struct\ sk_buff\ *\ " "skb" ");"
.SH "ARGUMENTS"
.PP
\fIskb\fR
.RS 4
the frame
.RE
.SH "DESCRIPTION"
.PP
Given an skb with a raw 802\&.11 header at the data pointer this function returns the 802\&.11 header length\&.
.SH "RETURN"
.PP
The 802\&.11 header length in bytes (not including encryption headers)\&. Or 0 if the data in the sk_buff is too short to contain a valid 802\&.11 header\&.
.SH "AUTHOR"
.PP
\fBJohannes Berg\fR <\&johannes@sipsolutions.net\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br