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authorRui Paulo <rpaulo@gmail.com>2009-11-09 23:46:56 +0000
committerJohn W. Linville <linville@tuxdriver.com>2009-11-13 17:43:56 -0500
commite304bfd30f356f7b75d30cad0029ecca705fd590 (patch)
tree64b466a5d6b70dba13605d5ec1ae656801caa212 /net/mac80211/mesh.c
parentd19b3bf6384e66ac6e11a61ee31ed2cfe149f4d8 (diff)
downloadop-kernel-dev-e304bfd30f356f7b75d30cad0029ecca705fd590.zip
op-kernel-dev-e304bfd30f356f7b75d30cad0029ecca705fd590.tar.gz
mac80211: implement a timer to send RANN action frames
RANN (Root Annoucement) frame TX. Send an action frame every second trying to build a path to all nodes on the mesh. Signed-off-by: Rui Paulo <rpaulo@gmail.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Reviewed-by: Andrey Yurovsky <andrey@cozybit.com> Tested-by: Brian Cavagnolo <brian@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 0f3e114..88dcfe3 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -14,6 +14,7 @@
#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
+#define IEEE80211_MESH_RANN_INTERVAL (1 * HZ)
#define MESHCONF_PP_OFFSET 0 /* Path Selection Protocol */
#define MESHCONF_PM_OFFSET 1 /* Path Selection Metric */
@@ -26,6 +27,7 @@
#define TMR_RUNNING_HK 0
#define TMR_RUNNING_MP 1
+#define TMR_RUNNING_MPR 2
int mesh_allocated;
static struct kmem_cache *rm_cache;
@@ -354,6 +356,23 @@ static void ieee80211_mesh_path_timer(unsigned long data)
ieee80211_queue_work(&local->hw, &ifmsh->work);
}
+static void ieee80211_mesh_path_root_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata =
+ (struct ieee80211_sub_if_data *) data;
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+ struct ieee80211_local *local = sdata->local;
+
+ set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
+
+ if (local->quiescing) {
+ set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running);
+ return;
+ }
+
+ ieee80211_queue_work(&local->hw, &ifmsh->work);
+}
+
/**
* ieee80211_fill_mesh_addresses - fill addresses of a locally originated mesh frame
* @hdr: 802.11 frame header
@@ -447,6 +466,15 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
}
+static void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+ mesh_path_tx_root_frame(sdata);
+ mod_timer(&ifmsh->mesh_path_root_timer,
+ round_jiffies(jiffies + IEEE80211_MESH_RANN_INTERVAL));
+}
+
#ifdef CONFIG_PM
void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
{
@@ -461,6 +489,8 @@ void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
if (del_timer_sync(&ifmsh->mesh_path_timer))
set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
+ if (del_timer_sync(&ifmsh->mesh_path_root_timer))
+ set_bit(TMR_RUNNING_MPR, &ifmsh->timers_running);
}
void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
@@ -471,6 +501,8 @@ void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
add_timer(&ifmsh->housekeeping_timer);
if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running))
add_timer(&ifmsh->mesh_path_timer);
+ if (test_and_clear_bit(TMR_RUNNING_MPR, &ifmsh->timers_running))
+ add_timer(&ifmsh->mesh_path_root_timer);
}
#endif
@@ -490,6 +522,7 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
{
del_timer_sync(&sdata->u.mesh.housekeeping_timer);
+ del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);
/*
* If the timer fired while we waited for it, it will have
* requeued the work. Now the work will be running again
@@ -627,6 +660,9 @@ static void ieee80211_mesh_work(struct work_struct *work)
if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags))
ieee80211_mesh_housekeeping(sdata, ifmsh);
+
+ if (test_and_clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags))
+ ieee80211_mesh_rootpath(sdata);
}
void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
@@ -683,6 +719,9 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
setup_timer(&ifmsh->mesh_path_timer,
ieee80211_mesh_path_timer,
(unsigned long) sdata);
+ setup_timer(&ifmsh->mesh_path_root_timer,
+ ieee80211_mesh_path_root_timer,
+ (unsigned long) sdata);
INIT_LIST_HEAD(&ifmsh->preq_queue.list);
spin_lock_init(&ifmsh->mesh_preq_queue_lock);
}
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