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Commit c6ca5e28 authored by cedric Voncken's avatar cedric Voncken Committed by Johannes Berg
Browse files

cfg80211: vlan priority handling in WMM 



If the VLAN tci is set in skb->vlan_tci use the
priority field to determine the WMM priority.

Signed-off-by: default avatarcedric Voncken <cedric.voncken@acksys.fr>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 131a19bc

net/wireless/util.c

+9 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <net/cfg80211.h>

#include <net/ip.h>

#include <net/dsfield.h>

#include <linux/if_vlan.h>

#include "core.h"

#include "rdev-ops.h"
@@ -691,6 +692,7 @@ EXPORT_SYMBOL(ieee80211_amsdu_to_8023s); 
unsigned int cfg80211_classify8021d(struct sk_buff *skb)

{

	unsigned int dscp;

	unsigned char vlan_priority;



	/* skb->priority values from 256->263 are magic values to

	 * directly indicate a specific 802.1d priority.  This is used
@@ -700,6 +702,13 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb) 
	if (skb->priority >= 256 && skb->priority <= 263)

		return skb->priority - 256;



	if (vlan_tx_tag_present(skb)) {

		vlan_priority = (vlan_tx_tag_get(skb) & VLAN_PRIO_MASK)

			>> VLAN_PRIO_SHIFT;

		if (vlan_priority > 0)

			return vlan_priority;

	}



	switch (skb->protocol) {

	case htons(ETH_P_IP):

		dscp = ipv4_get_dsfield(ip_hdr(skb)) & 0xfc;