Report Toffset to userspace.
Let userspace select the mesh synchronization method.
Signed-off-by: Marco Porsch <marco.porsch@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Pavel Zubarev <pavel.zubarev@xxxxxxxxx>
Signed-off-by: Javier Cardona <javier@xxxxxxxxxxx>
---
include/linux/nl80211.h | 12 ++++++++++++
include/net/cfg80211.h | 14 +++++++++++---
net/mac80211/cfg.c | 8 ++++++++
net/wireless/mesh.c | 3 +++
net/wireless/nl80211.c | 16 ++++++++++++++++
5 files changed, 50 insertions(+), 3 deletions(-)
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index e474f6e..b9b1f01 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1685,6 +1685,7 @@ enum nl80211_sta_bss_param {
* @NL80211_STA_INFO_CONNECTED_TIME: time since the station is last connected
* @NL80211_STA_INFO_STA_FLAGS: Contains a struct nl80211_sta_flag_update.
* @NL80211_STA_INFO_BEACON_LOSS: count of times beacon loss was detected (u32)
+ * @NL80211_STA_INFO_T_OFFSET: timing offset with respect to this STA (s64)
* @__NL80211_STA_INFO_AFTER_LAST: internal
* @NL80211_STA_INFO_MAX: highest possible station info attribute
*/
@@ -1708,6 +1709,7 @@ enum nl80211_sta_info {
NL80211_STA_INFO_CONNECTED_TIME,
NL80211_STA_INFO_STA_FLAGS,
NL80211_STA_INFO_BEACON_LOSS,
+ NL80211_STA_INFO_T_OFFSET,
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
@@ -2142,6 +2144,9 @@ enum nl80211_mntr_flags {
*
* @NL80211_MESHCONF_ATTR_MAX: highest possible mesh configuration attribute
*
+ * @NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR: maximum number of neighbors
+ * to synchronize to for 11s default synchronization method (see 11C.12.2.2)
+ *
* @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use
*/
enum nl80211_meshconf_params {
@@ -2166,6 +2171,7 @@ enum nl80211_meshconf_params {
NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
NL80211_MESHCONF_FORWARDING,
NL80211_MESHCONF_RSSI_THRESHOLD,
+ NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
/* keep last */
__NL80211_MESHCONF_ATTR_AFTER_LAST,
@@ -2205,6 +2211,11 @@ enum nl80211_meshconf_params {
* complete (unsecured) mesh peering without the need of a userspace daemon.
*
* @NL80211_MESH_SETUP_ATTR_MAX: highest possible mesh setup attribute number
+ *
+ * @NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC: Enable this option to use a
+ * vendor specific synchronization method or disable it to use the default
+ * neighbor offset synchronization
+ *
* @__NL80211_MESH_SETUP_ATTR_AFTER_LAST: Internal use
*/
enum nl80211_mesh_setup_params {
@@ -2214,6 +2225,7 @@ enum nl80211_mesh_setup_params {
NL80211_MESH_SETUP_IE,
NL80211_MESH_SETUP_USERSPACE_AUTH,
NL80211_MESH_SETUP_USERSPACE_AMPE,
+ NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC,
/* keep last */
__NL80211_MESH_SETUP_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5ccac72..f394cda 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -520,6 +520,7 @@ struct station_parameters {
* @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
* @STATION_INFO_STA_FLAGS: @sta_flags filled
* @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
+ * @STATION_INFO_T_OFFSET: @t_offset filled
*/
enum station_info_flags {
STATION_INFO_INACTIVE_TIME = 1<<0,
@@ -541,7 +542,8 @@ enum station_info_flags {
STATION_INFO_CONNECTED_TIME = 1<<16,
STATION_INFO_ASSOC_REQ_IES = 1<<17,
STATION_INFO_STA_FLAGS = 1<<18,
- STATION_INFO_BEACON_LOSS_COUNT = 1<<19
+ STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
+ STATION_INFO_T_OFFSET = 1<<20,
};
/**
@@ -642,6 +644,7 @@ struct sta_bss_parameters {
* @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
* @sta_flags: station flags mask & values
* @beacon_loss_count: Number of times beacon loss event has triggered.
+ * @t_offset: Time offset of the station relative to this host.
*/
struct station_info {
u32 filled;
@@ -670,6 +673,7 @@ struct station_info {
size_t assoc_req_ies_len;
u32 beacon_loss_count;
+ s64 t_offset;
/*
* Note: Add a new enum station_info_flags value for each new field and
@@ -797,6 +801,8 @@ struct mesh_config {
/* ttl used in path selection information elements */
u8 element_ttl;
bool auto_open_plinks;
+ /* neighbor offset synchronization */
+ u32 dot11MeshNbrOffsetMaxNeighbor;
/* HWMP parameters */
u8 dot11MeshHWMPmaxPREQretries;
u32 path_refresh_time;
@@ -820,6 +826,7 @@ struct mesh_config {
* struct mesh_setup - 802.11s mesh setup configuration
* @mesh_id: the mesh ID
* @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
+ * @sync_method: which synchronization method to use
* @path_sel_proto: which path selection protocol to use
* @path_metric: which metric to use
* @ie: vendor information elements (optional)
@@ -833,8 +840,9 @@ struct mesh_config {
struct mesh_setup {
const u8 *mesh_id;
u8 mesh_id_len;
- u8 path_sel_proto;
- u8 path_metric;
+ u8 sync_method;
+ u8 path_sel_proto;
+ u8 path_metric;
const u8 *ie;
u8 ie_len;
bool is_authenticated;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 677d659..48b13c4 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -412,6 +412,10 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->llid = le16_to_cpu(sta->llid);
sinfo->plid = le16_to_cpu(sta->plid);
sinfo->plink_state = sta->plink_state;
+ if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
+ sinfo->filled |= STATION_INFO_T_OFFSET;
+ sinfo->t_offset = sta->t_offset;
+ }
#endif
}
@@ -1235,6 +1239,7 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
/* now copy the rest of the setup parameters */
ifmsh->mesh_id_len = setup->mesh_id_len;
memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
+ ifmsh->mesh_sp_id = setup->sync_method;
ifmsh->mesh_pp_id = setup->path_sel_proto;
ifmsh->mesh_pm_id = setup->path_metric;
ifmsh->security = IEEE80211_MESH_SEC_NONE;
@@ -1279,6 +1284,9 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
conf->dot11MeshTTL = nconf->element_ttl;
if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
conf->auto_open_plinks = nconf->auto_open_plinks;
+ if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
+ conf->dot11MeshNbrOffsetMaxNeighbor =
+ nconf->dot11MeshNbrOffsetMaxNeighbor;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
conf->dot11MeshHWMPmaxPREQretries =
nconf->dot11MeshHWMPmaxPREQretries;
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index ba21ab2..8c747fa 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -38,6 +38,7 @@
#define MESH_MAX_PREQ_RETRIES 4
+#define MESH_SYNC_NEIGHBOR_OFFSET_MAX 50
const struct mesh_config default_mesh_config = {
.dot11MeshRetryTimeout = MESH_RET_T,
@@ -48,6 +49,7 @@ const struct mesh_config default_mesh_config = {
.element_ttl = MESH_DEFAULT_ELEMENT_TTL,
.auto_open_plinks = true,
.dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
+ .dot11MeshNbrOffsetMaxNeighbor = MESH_SYNC_NEIGHBOR_OFFSET_MAX,
.dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
.dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
.dot11MeshHWMPperrMinInterval = MESH_PERR_MIN_INT,
@@ -62,6 +64,7 @@ const struct mesh_config default_mesh_config = {
};
const struct mesh_setup default_mesh_setup = {
+ .sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
.ie = NULL,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e49da27..dbd0aef 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2487,6 +2487,9 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
sizeof(struct nl80211_sta_flag_update),
&sinfo->sta_flags);
+ if (sinfo->filled & STATION_INFO_T_OFFSET)
+ NLA_PUT_U64(msg, NL80211_STA_INFO_T_OFFSET,
+ sinfo->t_offset);
nla_nest_end(msg, sinfoattr);
if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
@@ -3285,6 +3288,8 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
cur_params.element_ttl);
NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
cur_params.auto_open_plinks);
+ NLA_PUT_U32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
+ cur_params.dot11MeshNbrOffsetMaxNeighbor);
NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
cur_params.dot11MeshHWMPmaxPREQretries);
NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
@@ -3329,6 +3334,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A
[NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
[NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
[NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
+ [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
[NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
[NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
@@ -3346,6 +3352,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A
static const struct nla_policy
nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
+ [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
@@ -3398,6 +3405,9 @@ do {\
mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
+ mask, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
+ nla_get_u32);
FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
nla_get_u8);
@@ -3455,6 +3465,12 @@ static int nl80211_parse_mesh_setup(struct genl_info *info,
nl80211_mesh_setup_params_policy))
return -EINVAL;
+ if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
+ setup->sync_method =
+ (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
+ IEEE80211_SYNC_METHOD_VENDOR :
+ IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
+
if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
setup->path_sel_proto =
(nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
--
1.7.5.4
--
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