summaryrefslogtreecommitdiff
path: root/net/mac80211/mesh_hwmp.c
diff options
context:
space:
mode:
authorChun-Yeow Yeoh <yeohchunyeow@gmail.com>2012-03-02 02:03:19 +0800
committerJohn W. Linville <linville@tuxdriver.com>2012-03-05 15:38:33 -0500
commitd665508b98d3cdbeb476e7d6848a513184a81ed0 (patch)
tree00032469034dc31c007251d956396bcfbe2103c6 /net/mac80211/mesh_hwmp.c
parentfe8431f89e25de722610ee5beb2892bd019d1fed (diff)
downloadlinux-sh-d665508b98d3cdbeb476e7d6848a513184a81ed0.tar.gz
mac80211: fix the support of setting non-forwarding entity in Mesh
RANN, PREP and PERR propagation should happen only if the dot11MeshForwarding is true. Besides, data frame should not be forwarded if dot11MeshForwarding is false. This redundant checking is necessary to avoid the broadcasted ARP breaking the non-forwarding rule. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh_hwmp.c')
-rw-r--r--net/mac80211/mesh_hwmp.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index ae82ea75bc74..4a993f2d1ae1 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -619,6 +619,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
u8 *prep_elem, u32 metric)
{
+ struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_path *mpath;
u8 *target_addr, *orig_addr;
u8 ttl, hopcount, flags;
@@ -632,6 +633,9 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
/* destination, no forwarding required */
return;
+ if (!ifmsh->mshcfg.dot11MeshForwarding)
+ return;
+
ttl = PREP_IE_TTL(prep_elem);
if (ttl <= 1) {
sdata->u.mesh.mshstats.dropped_frames_ttl++;
@@ -709,12 +713,15 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata,
mpath->flags &= ~MESH_PATH_ACTIVE;
mpath->sn = target_sn;
spin_unlock_bh(&mpath->state_lock);
+ if (!ifmsh->mshcfg.dot11MeshForwarding)
+ goto endperr;
mesh_path_error_tx(ttl, target_addr, cpu_to_le32(target_sn),
cpu_to_le16(target_rcode),
broadcast_addr, sdata);
} else
spin_unlock_bh(&mpath->state_lock);
}
+endperr:
rcu_read_unlock();
}
@@ -771,7 +778,7 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH);
}
- if (mpath->sn < orig_sn) {
+ if (mpath->sn < orig_sn && ifmsh->mshcfg.dot11MeshForwarding) {
mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr,
cpu_to_le32(orig_sn),
0, NULL, 0, broadcast_addr,