When userspace is controlling mesh routing, it may have better
knowledge about whether a mesh STA is connected to a mesh
gate than the kernel mpath table. Add dot11MeshConnectedToMeshGate
to the mesh config so that such applications can explicitly
signal that a mesh STA is connected to a gate, which will then
be advertised in the beacon.
Signed-off-by: Bob Copeland <bobcopeland@xxxxxx>
---
include/net/cfg80211.h | 5 +++++
include/uapi/linux/nl80211.h | 6 ++++++
net/mac80211/cfg.c | 3 +++
net/mac80211/debugfs_netdev.c | 3 +++
net/mac80211/mesh.c | 3 ++-
net/wireless/nl80211.c | 8 +++++++-
6 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f2cb1a3c9651..cddaa9dacb27 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1562,6 +1562,10 @@ struct bss_parameters {
* @plink_timeout: If no tx activity is seen from a STA we've established
* peering with for longer than this time (in seconds), then remove it
* from the STA's list of peers. Default is 30 minutes.
+ * @dot11MeshConnectedToMeshGate: if set to true, advertise that this STA is
+ * connected to a mesh gate in mesh formation info. If false, the
+ * value in mesh formation is determined by the presence of root paths
+ * in the mesh path table
*/
struct mesh_config {
u16 dot11MeshRetryTimeout;
@@ -1581,6 +1585,7 @@ struct mesh_config {
u16 dot11MeshHWMPperrMinInterval;
u16 dot11MeshHWMPnetDiameterTraversalTime;
u8 dot11MeshHWMPRootMode;
+ bool dot11MeshConnectedToMeshGate;
u16 dot11MeshHWMPRannInterval;
bool dot11MeshGateAnnouncementProtocol;
bool dot11MeshForwarding;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f2d79f9b4b5a..d04391ae4acd 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3898,6 +3898,11 @@ enum nl80211_mesh_power_mode {
* remove it from the STA's list of peers. You may set this to 0 to disable
* the removal of the STA. Default is 30 minutes.
*
+ * @NL80211_MESHCONF_CONNECTED_TO_GATE: If set to true then this mesh STA
+ * will advertise that it is connected to a gate in the mesh formation
+ * field. If left unset then the mesh formation field will only
+ * advertise such if there is an active root mesh path.
+ *
* @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use
*/
enum nl80211_meshconf_params {
@@ -3930,6 +3935,7 @@ enum nl80211_meshconf_params {
NL80211_MESHCONF_POWER_MODE,
NL80211_MESHCONF_AWAKE_WINDOW,
NL80211_MESHCONF_PLINK_TIMEOUT,
+ NL80211_MESHCONF_CONNECTED_TO_GATE,
/* keep last */
__NL80211_MESHCONF_ATTR_AFTER_LAST,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 51622333d460..6d1c54f28df7 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2028,6 +2028,9 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
nconf->dot11MeshAwakeWindowDuration;
if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
conf->plink_timeout = nconf->plink_timeout;
+ if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
+ conf->dot11MeshConnectedToMeshGate =
+ nconf->dot11MeshConnectedToMeshGate;
ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
return 0;
}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index c813207bb123..cff0fb3578c9 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -641,6 +641,8 @@ IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
+IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
+ u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
#endif
#define DEBUGFS_ADD_MODE(name, mode) \
@@ -762,6 +764,7 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
MESHPARAMS_ADD(power_mode);
MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
+ MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
#undef MESHPARAMS_ADD
}
#endif
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 19205c821dee..4869280a6413 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -255,7 +255,8 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
u8 *pos, neighbors;
u8 meshconf_len = sizeof(struct ieee80211_meshconf_ie);
bool is_connected_to_gate = ifmsh->num_gates > 0 ||
- ifmsh->mshcfg.dot11MeshGateAnnouncementProtocol;
+ ifmsh->mshcfg.dot11MeshGateAnnouncementProtocol ||
+ ifmsh->mshcfg.dot11MeshConnectedToMeshGate;
if (skb_tailroom(skb) < 2 + meshconf_len)
return -ENOMEM;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ce8c082e6389..05ac44d6d5c4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6123,7 +6123,9 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
cur_params.dot11MeshAwakeWindowDuration) ||
nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
- cur_params.plink_timeout))
+ cur_params.plink_timeout) ||
+ nla_put_u8(msg, NL80211_MESHCONF_CONNECTED_TO_GATE,
+ cur_params.dot11MeshConnectedToMeshGate))
goto nla_put_failure;
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
@@ -6180,6 +6182,7 @@ nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
NL80211_MESH_POWER_MAX),
[NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
[NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
+ [NL80211_MESHCONF_CONNECTED_TO_GATE] = { .type = NLA_U8 },
};
static const struct nla_policy
@@ -6291,6 +6294,9 @@ do { \
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, mask,
NL80211_MESHCONF_RSSI_THRESHOLD,
nla_get_s32);
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConnectedToMeshGate, mask,
+ NL80211_MESHCONF_CONNECTED_TO_GATE,
+ nla_get_u8);
/*
* Check HT operation mode based on
* IEEE 802.11-2016 9.4.2.57 HT Operation element.
--
2.11.0
