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authorBob Copeland <me@bobcopeland.com>2018-10-25 21:48:52 +0200
committerJohannes Berg <johannes.berg@intel.com>2018-11-09 11:38:11 +0100
commit4a6ecd35f95b0e29b3470ca16772a1cc89607c97 (patch)
tree2c514eb9bdb2cdea5cf9506f120286784771e805 /net/mac80211/mesh.c
parentmac80211: allow hardware scan to fall back to software (diff)
downloadlinux-4a6ecd35f95b0e29b3470ca16772a1cc89607c97.tar.xz
linux-4a6ecd35f95b0e29b3470ca16772a1cc89607c97.zip
mac80211: mesh: advertise gates in mesh formation
The Connected to Mesh Gate subfield (802.11-2016 9.4.2.98.7) in the Mesh Formation Info field is currently unset. This field may be useful in determining which MBSSes to join or which mesh STAs to peer with. If this mesh STA is a gate, by having turned on mesh gate announcements, or if we have a path to one (e.g. by having received RANNs) then set this bit to 1. Signed-off-by: Bob Copeland <bobcopeland@fb.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 8bad414c52ad..19205c821dee 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -254,6 +254,8 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
u8 *pos, neighbors;
u8 meshconf_len = sizeof(struct ieee80211_meshconf_ie);
+ bool is_connected_to_gate = ifmsh->num_gates > 0 ||
+ ifmsh->mshcfg.dot11MeshGateAnnouncementProtocol;
if (skb_tailroom(skb) < 2 + meshconf_len)
return -ENOMEM;
@@ -278,7 +280,7 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
/* Mesh Formation Info - number of neighbors */
neighbors = atomic_read(&ifmsh->estab_plinks);
neighbors = min_t(int, neighbors, IEEE80211_MAX_MESH_PEERINGS);
- *pos++ = neighbors << 1;
+ *pos++ = (neighbors << 1) | is_connected_to_gate;
/* Mesh capability */
*pos = 0x00;
*pos |= ifmsh->mshcfg.dot11MeshForwarding ?