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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
commitb4b7ff4b08e691656c9d77c758fc355833128ac0 (patch)
tree82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /net/mac80211/mesh.c
parent35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff)
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c85
1 files changed, 78 insertions, 7 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index e06a5ca7c..fa28500f2 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -94,6 +94,9 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
ieee80211_ht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
ie->ht_operation, &sta_chan_def);
+ ieee80211_vht_oper_to_chandef(sdata->vif.bss_conf.chandef.chan,
+ ie->vht_operation, &sta_chan_def);
+
if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
&sta_chan_def))
return false;
@@ -436,8 +439,6 @@ int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_channel *channel;
- enum nl80211_channel_type channel_type =
- cfg80211_get_chandef_type(&sdata->vif.bss_conf.chandef);
struct ieee80211_supported_band *sband;
struct ieee80211_sta_ht_cap *ht_cap;
u8 *pos;
@@ -454,7 +455,10 @@ int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata,
sband = local->hw.wiphy->bands[channel->band];
ht_cap = &sband->ht_cap;
- if (!ht_cap->ht_supported || channel_type == NL80211_CHAN_NO_HT)
+ if (!ht_cap->ht_supported ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10)
return 0;
if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_operation))
@@ -462,7 +466,70 @@ int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata,
pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation));
ieee80211_ie_build_ht_oper(pos, ht_cap, &sdata->vif.bss_conf.chandef,
- sdata->vif.bss_conf.ht_operation_mode);
+ sdata->vif.bss_conf.ht_operation_mode,
+ false);
+
+ return 0;
+}
+
+int mesh_add_vht_cap_ie(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
+{
+ struct ieee80211_local *local = sdata->local;
+ enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+ struct ieee80211_supported_band *sband;
+ u8 *pos;
+
+ sband = local->hw.wiphy->bands[band];
+ if (!sband->vht_cap.vht_supported ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10)
+ return 0;
+
+ if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_vht_cap))
+ return -ENOMEM;
+
+ pos = skb_put(skb, 2 + sizeof(struct ieee80211_vht_cap));
+ ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, sband->vht_cap.cap);
+
+ return 0;
+}
+
+int mesh_add_vht_oper_ie(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ struct ieee80211_channel *channel;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_sta_vht_cap *vht_cap;
+ u8 *pos;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (WARN_ON(!chanctx_conf)) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
+ channel = chanctx_conf->def.chan;
+ rcu_read_unlock();
+
+ sband = local->hw.wiphy->bands[channel->band];
+ vht_cap = &sband->vht_cap;
+
+ if (!vht_cap->vht_supported ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 ||
+ sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10)
+ return 0;
+
+ if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_vht_operation))
+ return -ENOMEM;
+
+ pos = skb_put(skb, 2 + sizeof(struct ieee80211_vht_operation));
+ ieee80211_ie_build_vht_oper(pos, vht_cap,
+ &sdata->vif.bss_conf.chandef);
return 0;
}
@@ -540,9 +607,9 @@ int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc,
*
* Return the header length.
*/
-int ieee80211_new_mesh_header(struct ieee80211_sub_if_data *sdata,
- struct ieee80211s_hdr *meshhdr,
- const char *addr4or5, const char *addr6)
+unsigned int ieee80211_new_mesh_header(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211s_hdr *meshhdr,
+ const char *addr4or5, const char *addr6)
{
if (WARN_ON(!addr4or5 && addr6))
return 0;
@@ -637,6 +704,8 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
2 + ifmsh->mesh_id_len +
2 + sizeof(struct ieee80211_meshconf_ie) +
2 + sizeof(__le16) + /* awake window */
+ 2 + sizeof(struct ieee80211_vht_cap) +
+ 2 + sizeof(struct ieee80211_vht_operation) +
ifmsh->ie_len;
bcn = kzalloc(sizeof(*bcn) + head_len + tail_len, GFP_KERNEL);
@@ -718,6 +787,8 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
mesh_add_meshid_ie(sdata, skb) ||
mesh_add_meshconf_ie(sdata, skb) ||
mesh_add_awake_window_ie(sdata, skb) ||
+ mesh_add_vht_cap_ie(sdata, skb) ||
+ mesh_add_vht_oper_ie(sdata, skb) ||
mesh_add_vendor_ies(sdata, skb))
goto out_free;