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authorKyeyoon Park <kyeyoonp@qca.qualcomm.com>2013-12-16 23:01:30 -0800
committerJohannes Berg <johannes.berg@intel.com>2013-12-19 16:29:22 +0100
commitfa9ffc745610f31c6bc136d5a6a1782e00870e72 (patch)
treeadb2799c4d6a78a95d291582a02c42027b2527c2 /net/wireless/util.c
parent567ffc3509b2d3f965a49a18631d3da7f9a96d4f (diff)
downloadlinux-stericsson-fa9ffc745610f31c6bc136d5a6a1782e00870e72.tar.gz
cfg80211: Add support for QoS mapping
This allows QoS mapping from external networks to be implemented as defined in IEEE Std 802.11-2012, 10.24.9. APs can use this to advertise DSCP ranges and exceptions for mapping frames to a specific UP over Wi-Fi. The payload of the QoS Map Set element (IEEE Std 802.11-2012, 8.4.2.97) is sent to the driver through the new NL80211_ATTR_QOS_MAP attribute to configure the local behavior either on the AP (based on local configuration) or on a station (based on information received from the AP). Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/util.c')
-rw-r--r--net/wireless/util.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 935dea9485da..5618888853b2 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -689,7 +689,8 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
EXPORT_SYMBOL(ieee80211_amsdu_to_8023s);
/* Given a data frame determine the 802.1p/1d tag to use. */
-unsigned int cfg80211_classify8021d(struct sk_buff *skb)
+unsigned int cfg80211_classify8021d(struct sk_buff *skb,
+ struct cfg80211_qos_map *qos_map)
{
unsigned int dscp;
unsigned char vlan_priority;
@@ -720,6 +721,21 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
return 0;
}
+ if (qos_map) {
+ unsigned int i, tmp_dscp = dscp >> 2;
+
+ for (i = 0; i < qos_map->num_des; i++) {
+ if (tmp_dscp == qos_map->dscp_exception[i].dscp)
+ return qos_map->dscp_exception[i].up;
+ }
+
+ for (i = 0; i < 8; i++) {
+ if (tmp_dscp >= qos_map->up[i].low &&
+ tmp_dscp <= qos_map->up[i].high)
+ return i;
+ }
+ }
+
return dscp >> 5;
}
EXPORT_SYMBOL(cfg80211_classify8021d);
@@ -863,6 +879,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
dev->ieee80211_ptr->use_4addr = false;
dev->ieee80211_ptr->mesh_id_up_len = 0;
+ rdev_set_qos_map(rdev, dev, NULL);
switch (otype) {
case NL80211_IFTYPE_AP: