6 files changed, 27 insertions, 3 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 3d8717a0d3b2..516aded3697f 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1036,6 +1036,8 @@ struct mesh_config {
  * @ie_len: length of vendor information elements
  * @is_authenticated: this mesh requires authentication
  * @is_secure: this mesh uses security
+ * @dtim_period: DTIM period to use
+ * @beacon_interval: beacon interval to use
  * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
  *
  * These parameters are fixed when the mesh is created.
@@ -1051,6 +1053,8 @@ struct mesh_setup {
         u8 ie_len;
         bool is_authenticated;
         bool is_secure;
+        u8 dtim_period;
+        u16 beacon_interval;
         int mcast_rate[IEEE80211_NUM_BANDS];
 };
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8a91dd22d571..36aa65f495ff 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1666,6 +1666,9 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
                                                 sizeof(setup->mcast_rate));
 
+        sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
+        sdata->vif.bss_conf.dtim_period = setup->dtim_period;
+
         return 0;
 }
 
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 245885841c8d..694e27376afa 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -625,7 +625,6 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
         ieee80211_queue_work(&local->hw, &sdata->work);
         sdata->vif.bss_conf.ht_operation_mode =
                                 ifmsh->mshcfg.ht_opmode;
-        sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
         sdata->vif.bss_conf.enable_beacon = true;
         sdata->vif.bss_conf.basic_rates =
                 ieee80211_mandatory_rates(local, band);
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index c07f6fc63dc6..aff301544c7f 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -191,8 +191,6 @@ struct mesh_rmc {
 #define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
 #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
 
-#define MESH_DEFAULT_BEACON_INTERVAL            1000    /* in 1024 us units */
-
 #define MESH_PATH_EXPIRE (600 * HZ)
 
 /* Default maximum number of plinks per interface */
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index f9d6ce5cfabb..0fe8ceb5444e 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -44,6 +44,9 @@
 
 #define MESH_SYNC_NEIGHBOR_OFFSET_MAX 50
 
+#define MESH_DEFAULT_BEACON_INTERVAL    1000    /* in 1024 us units (=TUs) */
+#define MESH_DEFAULT_DTIM_PERIOD        2
+
 const struct mesh_config default_mesh_config = {
         .dot11MeshRetryTimeout = MESH_RET_T,
         .dot11MeshConfirmTimeout = MESH_CONF_T,
@@ -79,6 +82,8 @@ const struct mesh_setup default_mesh_setup = {
         .ie = NULL,
         .ie_len = 0,
         .is_secure = false,
+        .beacon_interval = MESH_DEFAULT_BEACON_INTERVAL,
+        .dtim_period = MESH_DEFAULT_DTIM_PERIOD,
 };
 
 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ceb27fda9ec5..d5842eb35aec 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6669,6 +6669,21 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
                             nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
                         return -EINVAL;
 
+        if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
+                setup.beacon_interval =
+                        nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
+                if (setup.beacon_interval < 10 ||
+                    setup.beacon_interval > 10000)
+                        return -EINVAL;
+        }
+
+        if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
+                setup.dtim_period =
+                        nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
+                if (setup.dtim_period < 1 || setup.dtim_period > 100)
+                        return -EINVAL;
+        }
+
         if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
                 /* parse additional setup parameters if given */
                 err = nl80211_parse_mesh_setup(info, &setup);