śr., 17 kwi 2019 o 11:24 Tamizh chelvam <tamizhr@xxxxxxxxxxxxxx> napisał(a):
>
> Add infrastructure to configure station specific RSSI threshold
> configuration to monitor station's signal strength variation.
> This configuration will be useful for the application like
> steering which requires change in the station's current signal
> strength.
>
> New NL80211_CMD_STA_MON introduced to configure the RSSI threshold
> using NL80211_ATTR_CQM nested attributes. The MAC address of
> a station is passed in NL80211_ATTR_MAC. And NL80211_ATTR_STA_MON_FIXED_THOLD
> introduced to have this RSSI threshold as a fixed(not modifying the
> low and high threshold upon crossing the threshold) or moving(modifying
> low and high threshold upon crossing the threshold) thresholds.
> Depends on the application's use case user can have either fixed or
> moving RSSI range thresholds.
>
> cfg80211_sta_mon_rssi_notify introduced to notify change in the
> station's signal stregnth cross event using NL80211_CMD_NOTIFY_STA_MON.
> Driver supporting this feature should advertise
> NL80211_EXT_FEATURE_STA_MON_RSSI_CONFIG feature flag.
>
> Signed-off-by: Tamizh chelvam <tamizhr@xxxxxxxxxxxxxx>
> ---
> include/net/cfg80211.h | 39 +++++++++
> include/uapi/linux/nl80211.h | 21 +++++
> net/wireless/nl80211.c | 179 ++++++++++++++++++++++++++++++++++++------
> net/wireless/rdev-ops.h | 13 +++
> net/wireless/trace.h | 21 +++++
> 5 files changed, 247 insertions(+), 26 deletions(-)
>
> diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
> index 2ea04e9..cb8ba5a 100644
> --- a/include/net/cfg80211.h
> +++ b/include/net/cfg80211.h
> @@ -3161,6 +3161,20 @@ struct cfg80211_update_owe_info {
> };
>
> /**
> + * struct cfg80211_sta_mon - Configure station monitor parameters
> + * @rssi_tholds - array of RSSI thresholds for the station
> + * @rssi_hyst - RSSI hysterisis
> + * @n_tholds - Number of configuration thresholds
> + * @fixed_thold - Fixed thresholds limit used for the station
> + */
> +struct cfg80211_sta_mon {
> + s32 *rssi_tholds;
> + u32 rssi_hyst;
> + int n_tholds;
> + u8 fixed_thold;
> +};
> +
> +/**
> * struct cfg80211_ops - backend description for wireless configuration
> *
> * This struct is registered by fullmac card drivers and/or wireless stacks
> @@ -3501,6 +3515,12 @@ struct cfg80211_update_owe_info {
> * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME
> * but offloading OWE processing to the user space will get the updated
> * DH IE through this interface.
> + *
> + * @set_sta_mon_rssi_config: Configure RSSI threshold for a station.
> + * After configuration, the driver should (soon) send an event indicating
> + * the current level of a station is above/below the configured threshold;
> + * this may need some care when the configuration is changed
> + * (without first being disabled.)
> */
> struct cfg80211_ops {
> int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
> @@ -3817,6 +3837,9 @@ struct cfg80211_ops {
> struct cfg80211_pmsr_request *request);
> int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev,
> struct cfg80211_update_owe_info *owe_info);
> + int (*set_sta_mon_rssi_config)(struct wiphy *wiphy,
> + struct net_device *dev, const u8 *addr,
> + const struct cfg80211_sta_mon *sta_mon_cfg);
> };
>
> /*
> @@ -6620,6 +6643,22 @@ bool cfg80211_rx_control_port(struct net_device *dev,
> struct sk_buff *skb, bool unencrypted);
>
> /**
> + * cfg80211_sta_mon_rssi_notify - Station's rssi out of range event
> + * @dev: network device
> + * @peer: Station's mac address
> + * @rssi_event: the triggered RSSI event
> + * @rssi_level: new RSSI level value or 0 if not available
> + * @gfp: context flags
> + *
> + * This function is called when a configured rssi threshold reached event
> + * occurs for a station.
> + */
> +void
> +cfg80211_sta_mon_rssi_notify(struct net_device *dev, const u8 *peer,
> + enum nl80211_cqm_rssi_threshold_event rssi_event,
> + s32 rssi_level, gfp_t gfp);
> +
> +/**
> * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
> * @dev: network device
> * @rssi_event: the triggered RSSI event
> diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
> index 25f70dd..cbe5866 100644
> --- a/include/uapi/linux/nl80211.h
> +++ b/include/uapi/linux/nl80211.h
> @@ -1070,6 +1070,12 @@
> * OWE AKM by the host drivers that implement SME but rely
> * on the user space for the cryptographic/DH IE processing in AP mode.
> *
> + * @NL80211_CMD_SET_STA_MON: This command is used to configure station's
> + * connection monitoring notification trigger levels. This uses nested
> + * attribute %NL80211_ATTR_CQM with %NL80211_ATTR_CQM_* sub-attributes.
> + * @NL80211_CMD_NOTIFY_STA_MON: This is used as an event to notify
> + * the user space that a trigger level was reached for a station.
> + *
> * @NL80211_CMD_MAX: highest used command number
> * @__NL80211_CMD_AFTER_LAST: internal use
> */
> @@ -1292,6 +1298,9 @@ enum nl80211_commands {
>
> NL80211_CMD_UPDATE_OWE_INFO,
>
> + NL80211_CMD_SET_STA_MON,
> + NL80211_CMD_NOTIFY_STA_MON,
> +
> /* add new commands above here */
>
> /* used to define NL80211_CMD_MAX below */
> @@ -2324,6 +2333,12 @@ enum nl80211_commands {
> * should be picking up the lowest tx power, either tx power per-interface
> * or per-station.
> *
> + * @NL80211_ATTR_STA_MON_FIXED_THOLD: This u8 attribute is used with
> + * %NL80211_CMD_SET_STA_MON to indicate driver that the monitoring
> + * threshold is fixed(not modifying the low and high threshold upon
> + * crossing the threshold) or moving(modifying low and high threshold
> + * upon crossing the threshold) thresholds.
> + *
> * @NUM_NL80211_ATTR: total number of nl80211_attrs available
> * @NL80211_ATTR_MAX: highest attribute number currently defined
> * @__NL80211_ATTR_AFTER_LAST: internal use
> @@ -2777,6 +2792,8 @@ enum nl80211_attrs {
> NL80211_ATTR_STA_TX_POWER_SETTING,
> NL80211_ATTR_STA_TX_POWER,
>
> + NL80211_ATTR_STA_MON_FIXED_THOLD,
> +
> /* add attributes here, update the policy in nl80211.c */
>
> __NL80211_ATTR_AFTER_LAST,
> @@ -5405,6 +5422,9 @@ enum nl80211_feature_flags {
> * @NL80211_EXT_FEATURE_STA_TX_PWR: This driver supports controlling tx power
> * to a station.
> *
> + * @NL80211_EXT_FEATURE_STA_MON_RSSI_CONFIG: Driver supports monitoring
> + * station's RSSI threshold value should adveritise this flag.
> + *
> * @NUM_NL80211_EXT_FEATURES: number of extended features.
> * @MAX_NL80211_EXT_FEATURES: highest extended feature index.
> */
> @@ -5449,6 +5469,7 @@ enum nl80211_ext_feature_index {
> NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD,
> NL80211_EXT_FEATURE_EXT_KEY_ID,
> NL80211_EXT_FEATURE_STA_TX_PWR,
> + NL80211_EXT_FEATURE_STA_MON_RSSI_CONFIG,
>
> /* add new features before the definition below */
> NUM_NL80211_EXT_FEATURES,
> diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
> index 846d25d..78657c0 100644
> --- a/net/wireless/nl80211.c
> +++ b/net/wireless/nl80211.c
> @@ -280,6 +280,17 @@ static int validate_ie_attr(const struct nlattr *attr,
> NLA_POLICY_NESTED_ARRAY(nl80211_psmr_peer_attr_policy),
> };
>
> +static const struct nla_policy
> +nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
> + [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
> + [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
> + [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
> + [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
> + [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
> + [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
> + [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
> +};
> +
> const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
> [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
> [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
> @@ -395,7 +406,8 @@ static int validate_ie_attr(const struct nlattr *attr,
> [NL80211_ATTR_PS_STATE] = NLA_POLICY_RANGE(NLA_U32,
> NL80211_PS_DISABLED,
> NL80211_PS_ENABLED),
> - [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
> + [NL80211_ATTR_CQM] =
> + NLA_POLICY_NESTED(nl80211_attr_cqm_policy),
> [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
> [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
> [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
> @@ -546,6 +558,7 @@ static int validate_ie_attr(const struct nlattr *attr,
> [NL80211_ATTR_PEER_MEASUREMENTS] =
> NLA_POLICY_NESTED(nl80211_pmsr_attr_policy),
> [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1),
> + [NL80211_ATTR_STA_MON_FIXED_THOLD] = { .type = NLA_FLAG },
> };
>
> /* policy for the key attributes */
> @@ -10498,17 +10511,6 @@ static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
> return err;
> }
>
> -static const struct nla_policy
> -nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
> - [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
> - [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
> - [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
> - [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
> - [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
> - [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
> - [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
> -};
> -
> static int nl80211_set_cqm_txe(struct genl_info *info,
> u32 rate, u32 pkts, u32 intvl)
> {
> @@ -10589,14 +10591,9 @@ static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
> return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
> }
>
> -static int nl80211_set_cqm_rssi(struct genl_info *info,
> - const s32 *thresholds, int n_thresholds,
> - u32 hysteresis)
> +static int nl80211_validate_rssi_tholds(const s32 *thresholds, int n_thresholds)
> {
> - struct cfg80211_registered_device *rdev = info->user_ptr[0];
> - struct net_device *dev = info->user_ptr[1];
> - struct wireless_dev *wdev = dev->ieee80211_ptr;
> - int i, err;
> + int i;
> s32 prev = S32_MIN;
>
> /* Check all values negative and sorted */
> @@ -10606,6 +10603,21 @@ static int nl80211_set_cqm_rssi(struct genl_info *info,
>
> prev = thresholds[i];
> }
> + return 0;
> +}
> +
> +static int nl80211_set_cqm_rssi(struct genl_info *info,
> + const s32 *thresholds, int n_thresholds,
> + u32 hysteresis)
> +{
> + struct cfg80211_registered_device *rdev = info->user_ptr[0];
> + struct net_device *dev = info->user_ptr[1];
> + struct wireless_dev *wdev = dev->ieee80211_ptr;
> + int err;
> +
> + err = nl80211_validate_rssi_tholds(thresholds, n_thresholds);
> + if (err)
> + return err;
>
> if (wdev->iftype != NL80211_IFTYPE_STATION &&
> wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
> @@ -10668,7 +10680,7 @@ static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
> return -EINVAL;
>
> err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
> - nl80211_attr_cqm_policy, info->extack);
> + NULL, NULL);
> if (err)
> return err;
>
> @@ -13405,6 +13417,78 @@ static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info)
> return rdev_update_owe_info(rdev, dev, &owe_info);
> }
>
> +static int nl80211_set_sta_mon(struct sk_buff *skb, struct genl_info *info)
> +{
> + struct cfg80211_registered_device *rdev = info->user_ptr[0];
> + struct net_device *dev = info->user_ptr[1];
> + struct wireless_dev *wdev = dev->ieee80211_ptr;
> + struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
> + struct cfg80211_sta_mon sta_mon_config = {};
> + struct nlattr *sta_mon;
> + u8 *addr = NULL;
> + int err;
> +
> + if (wdev->iftype != NL80211_IFTYPE_AP &&
> + wdev->iftype != NL80211_IFTYPE_P2P_GO)
> + return -ENOTSUPP;
> +
> + wdev_lock(wdev);
> + sta_mon = info->attrs[NL80211_ATTR_CQM];
> + if (!sta_mon || !info->attrs[NL80211_ATTR_MAC]) {
> + err = -EINVAL;
> + goto out;
> + }
> +
> + err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, sta_mon,
> + NULL, NULL);
> + if (err) {
> + err = -EINVAL;
> + goto out;
> + }
> +
> + addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
> + sta_mon_config.fixed_thold =
> + nla_get_flag(info->attrs[NL80211_ATTR_STA_MON_FIXED_THOLD]);
> +
> + if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
> + attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
> + int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
> +
> + sta_mon_config.rssi_tholds =
> + nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
> + sta_mon_config.rssi_hyst =
> + nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
> +
> + if (!rdev->ops->set_sta_mon_rssi_config ||
> + !wiphy_ext_feature_isset(&rdev->wiphy,
> + NL80211_EXT_FEATURE_STA_MON_RSSI_CONFIG)) {
> + err = -EOPNOTSUPP;
> + goto out;
> + }
> +
> + if (len % 4) {
> + err = -EINVAL;
> + goto out;
> + }
> +
> + sta_mon_config.n_tholds = len / 4;
> + err = nl80211_validate_rssi_tholds(sta_mon_config.rssi_tholds,
> + sta_mon_config.n_tholds);
> + if (err) {
> + err = -EINVAL;
> + goto out;
> + }
> +
> + err = rdev_set_sta_mon_rssi_config(rdev, dev, addr,
> + &sta_mon_config);
> + goto out;
> + }
> +
> +out:
> + wdev_unlock(wdev);
> + return err;
> +}
> +
> #define NL80211_FLAG_NEED_WIPHY 0x01
> #define NL80211_FLAG_NEED_NETDEV 0x02
> #define NL80211_FLAG_NEED_RTNL 0x04
> @@ -14242,6 +14326,13 @@ static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
> .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
> NL80211_FLAG_NEED_RTNL,
> },
> + {
> + .cmd = NL80211_CMD_SET_STA_MON,
> + .doit = nl80211_set_sta_mon,
> + .flags = GENL_UNS_ADMIN_PERM,
> + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
> + NL80211_FLAG_NEED_RTNL,
> + },
> };
>
> static struct genl_family nl80211_fam __ro_after_init = {
> @@ -15443,7 +15534,8 @@ bool cfg80211_rx_control_port(struct net_device *dev,
> EXPORT_SYMBOL(cfg80211_rx_control_port);
>
> static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
> - const char *mac, gfp_t gfp)
> + const char *mac, gfp_t gfp,
> + enum nl80211_commands cmd)
> {
> struct wireless_dev *wdev = dev->ieee80211_ptr;
> struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
> @@ -15455,7 +15547,7 @@ static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
>
> cb = (void **)msg->cb;
>
> - cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
> + cb[0] = nl80211hdr_put(msg, 0, 0, 0, cmd);
> if (!cb[0]) {
> nlmsg_free(msg);
> return NULL;
> @@ -15517,7 +15609,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
> rssi_level = wdev->cqm_config->last_rssi_event_value;
> }
>
> - msg = cfg80211_prepare_cqm(dev, NULL, gfp);
> + msg = cfg80211_prepare_cqm(dev, NULL, gfp, NL80211_CMD_NOTIFY_CQM);
> if (!msg)
> return;
>
> @@ -15538,13 +15630,48 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
> }
> EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
>
> +void
> +cfg80211_sta_mon_rssi_notify(struct net_device *dev, const u8 *peer,
> + enum nl80211_cqm_rssi_threshold_event rssi_event,
> + s32 rssi_level, gfp_t gfp)
> +{
> + struct sk_buff *msg;
> +
> + trace_cfg80211_sta_mon_rssi_notify(dev, peer, rssi_event, rssi_level);
> + if (WARN_ON(!peer))
> + return;
> +
> + if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
> + rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
> + return;
> +
> + msg = cfg80211_prepare_cqm(dev, peer, gfp, NL80211_CMD_NOTIFY_STA_MON);
> + if (!msg)
> + return;
> +
> + if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
> + rssi_event))
> + goto nla_put_failure;
> +
> + if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
> + rssi_level))
> + goto nla_put_failure;
> +
> + cfg80211_send_cqm(msg, gfp);
> + return;
> +
> + nla_put_failure:
> + nlmsg_free(msg);
> +}
> +EXPORT_SYMBOL(cfg80211_sta_mon_rssi_notify);
> +
> void cfg80211_cqm_txe_notify(struct net_device *dev,
> const u8 *peer, u32 num_packets,
> u32 rate, u32 intvl, gfp_t gfp)
> {
> struct sk_buff *msg;
>
> - msg = cfg80211_prepare_cqm(dev, peer, gfp);
> + msg = cfg80211_prepare_cqm(dev, peer, gfp, NL80211_CMD_NOTIFY_CQM);
> if (!msg)
> return;
>
> @@ -15572,7 +15699,7 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
>
> trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
>
> - msg = cfg80211_prepare_cqm(dev, peer, gfp);
> + msg = cfg80211_prepare_cqm(dev, peer, gfp, NL80211_CMD_NOTIFY_CQM);
> if (!msg)
> return;
>
> @@ -15591,7 +15718,7 @@ void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
> {
> struct sk_buff *msg;
>
> - msg = cfg80211_prepare_cqm(dev, NULL, gfp);
> + msg = cfg80211_prepare_cqm(dev, NULL, gfp, NL80211_CMD_NOTIFY_CQM);
> if (!msg)
> return;
>
> diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
> index 18437a9..8d36745 100644
> --- a/net/wireless/rdev-ops.h
> +++ b/net/wireless/rdev-ops.h
> @@ -1286,4 +1286,17 @@ static inline int rdev_update_owe_info(struct cfg80211_registered_device *rdev,
> return ret;
> }
>
> +static inline int
> +rdev_set_sta_mon_rssi_config(struct cfg80211_registered_device *rdev,
> + struct net_device *dev, const u8 *addr,
> + const struct cfg80211_sta_mon *sta_mon_config)
> +{
> + int ret = -EOPNOTSUPP;
> +
> + ret = rdev->ops->set_sta_mon_rssi_config(&rdev->wiphy, dev,
> + addr, sta_mon_config);
> + trace_rdev_return_int(&rdev->wiphy, ret);
> + return ret;
> +}
> +
> #endif /* __CFG80211_RDEV_OPS */
> diff --git a/net/wireless/trace.h b/net/wireless/trace.h
> index 488ef2ce..113cd45 100644
> --- a/net/wireless/trace.h
> +++ b/net/wireless/trace.h
> @@ -3421,6 +3421,27 @@
> WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer))
> );
>
> +TRACE_EVENT(cfg80211_sta_mon_rssi_notify,
> + TP_PROTO(struct net_device *netdev, const u8 *addr,
> + enum nl80211_cqm_rssi_threshold_event rssi_event,
> + s32 rssi_level),
> + TP_ARGS(netdev, addr, rssi_event, rssi_level),
> + TP_STRUCT__entry(
> + NETDEV_ENTRY
> + MAC_ENTRY(addr)
> + __field(enum nl80211_cqm_rssi_threshold_event, rssi_event)
> + __field(s32, rssi_level)
> + ),
> + TP_fast_assign(
> + NETDEV_ASSIGN;
> + MAC_ASSIGN(addr, addr);
> + __entry->rssi_event = rssi_event;
> + __entry->rssi_level = rssi_level;
> + ),
> + TP_printk(NETDEV_PR_FMT ", station mac: " MAC_PR_FMT
> + ", rssi event: %d, level: %d", NETDEV_PR_ARG,
> + MAC_PR_ARG(addr), __entry->rssi_event, __entry->rssi_level)
> +);
> #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
>
> #undef TRACE_INCLUDE_PATH
> --
> 1.7.9.5
>
Will you continue with that?
Maybe simple use:
- NL80211_CMD_SET_CQM - switch base on info->attrs[NL80211_ATTR_MAC],
if set assume this is for IFTYPE_AP in other case for IFTYPE_STA
- use n_thresolds - and only that on begining
- use/extend - rdev_set_cqm_rssi_range_config (... const u8 *addr ..)
- this is what we need rssi_low, rssi_high for AP and sta
Unfortunately for IFTYPE_STATION we are using: wdev->cqm_config (not
sure this is really required). Still even that required - can split to
sta/ap functions ...
This could be really useful for me. Don't know yet if will handle that
directly in hostapd or simple will forward this as an event to
hostapd_cli listeners.
BR
Janusz
