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-rw-r--r--include/linux/nl80211.h16
-rw-r--r--include/net/cfg80211.h21
-rw-r--r--net/wireless/mlme.c13
-rw-r--r--net/wireless/nl80211.c85
-rw-r--r--net/wireless/nl80211.h5
5 files changed, 140 insertions, 0 deletions
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index e791487..d6cfacc 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -1550,6 +1550,8 @@ enum nl80211_attrs {
/* default RSSI threshold for scan results if none specified. */
#define NL80211_SCAN_RSSI_THOLD_OFF -300
+#define NL80211_CQM_TXE_MAX_INTVL 1800
+
/**
* enum nl80211_iftype - (virtual) interface types
*
@@ -2589,6 +2591,17 @@ enum nl80211_ps_state {
* @NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT: RSSI threshold event
* @NL80211_ATTR_CQM_PKT_LOSS_EVENT: a u32 value indicating that this many
* consecutive packets were not acknowledged by the peer
+ * @NL80211_ATTR_CQM_TXE_RATE: TX error rate in %. Minimum % of TX failures
+ * during the given %NL80211_ATTR_CQM_TXE_INTVL before an
+ * %NL80211_CMD_NOTIFY_CQM with reported %NL80211_ATTR_CQM_TXE_RATE and
+ * %NL80211_ATTR_CQM_TXE_PKTS is generated.
+ * @NL80211_ATTR_CQM_TXE_PKTS: number of attempted packets in a given
+ * %NL80211_ATTR_CQM_TXE_INTVL before %NL80211_ATTR_CQM_TXE_RATE is
+ * checked.
+ * @NL80211_ATTR_CQM_TXE_INTVL: interval in seconds. Specifies the periodic
+ * interval in which %NL80211_ATTR_CQM_TXE_PKTS and
+ * %NL80211_ATTR_CQM_TXE_RATE must be satisfied before generating an
+ * %NL80211_CMD_NOTIFY_CQM. Set to 0 to turn off TX error reporting.
* @__NL80211_ATTR_CQM_AFTER_LAST: internal
* @NL80211_ATTR_CQM_MAX: highest key attribute
*/
@@ -2598,6 +2611,9 @@ enum nl80211_attr_cqm {
NL80211_ATTR_CQM_RSSI_HYST,
NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
NL80211_ATTR_CQM_PKT_LOSS_EVENT,
+ NL80211_ATTR_CQM_TXE_RATE,
+ NL80211_ATTR_CQM_TXE_PKTS,
+ NL80211_ATTR_CQM_TXE_INTVL,
/* keep last */
__NL80211_ATTR_CQM_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0245208..493fa0c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1573,6 +1573,8 @@ struct cfg80211_gtk_rekey_data {
* @set_power_mgmt: Configure WLAN power management. A timeout value of -1
* allows the driver to adjust the dynamic ps timeout value.
* @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
+ * @set_cqm_txe_config: Configure connection quality monitor TX error
+ * thresholds.
* @sched_scan_start: Tell the driver to start a scheduled scan.
* @sched_scan_stop: Tell the driver to stop an ongoing scheduled
* scan. The driver_initiated flag specifies whether the driver
@@ -1783,6 +1785,10 @@ struct cfg80211_ops {
struct net_device *dev,
s32 rssi_thold, u32 rssi_hyst);
+ int (*set_cqm_txe_config)(struct wiphy *wiphy,
+ struct net_device *dev,
+ u32 rate, u32 pkts, u32 intvl);
+
void (*mgmt_frame_register)(struct wiphy *wiphy,
struct wireless_dev *wdev,
u16 frame_type, bool reg);
@@ -3396,6 +3402,21 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
const u8 *peer, u32 num_packets, gfp_t gfp);
/**
+ * cfg80211_cqm_txe_notify - TX error rate event
+ * @dev: network device
+ * @peer: peer's MAC address
+ * @num_packets: how many packets were lost
+ * @rate: % of packets which failed transmission
+ * @intvl: interval (in s) over which the TX failure threshold was breached.
+ * @gfp: context flags
+ *
+ * Notify userspace when configured % TX failures over number of packets in a
+ * given interval is exceeded.
+ */
+void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
+ u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
+
+/**
* cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
* @dev: network device
* @bssid: BSSID of AP (to avoid races)
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index abe9f82..1cdb1d5 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -919,6 +919,19 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
}
EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
+void cfg80211_cqm_txe_notify(struct net_device *dev,
+ const u8 *peer, u32 num_packets,
+ u32 rate, u32 intvl, gfp_t gfp)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct wiphy *wiphy = wdev->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+ nl80211_send_cqm_txe_notify(rdev, dev, peer, num_packets,
+ rate, intvl, gfp);
+}
+EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
+
void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
const u8 *replay_ctr, gfp_t gfp)
{
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index be8750f..9216e45 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6267,8 +6267,35 @@ nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
[NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
[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 },
};
+static int nl80211_set_cqm_txe(struct genl_info *info,
+ u32 rate, u32 pkts, u32 intvl)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct wireless_dev *wdev;
+ struct net_device *dev = info->user_ptr[1];
+
+ if ((rate < 0 || rate > 100) ||
+ (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
+ return -EINVAL;
+
+ wdev = dev->ieee80211_ptr;
+
+ if (!rdev->ops->set_cqm_txe_config)
+ return -EOPNOTSUPP;
+
+ if (wdev->iftype != NL80211_IFTYPE_STATION &&
+ wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
+
+ return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
+ rate, pkts, intvl);
+}
+
static int nl80211_set_cqm_rssi(struct genl_info *info,
s32 threshold, u32 hysteresis)
{
@@ -6316,6 +6343,14 @@ static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
+ } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
+ attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
+ attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
+ u32 rate, pkts, intvl;
+ rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
+ pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
+ intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
+ err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
} else
err = -EINVAL;
@@ -8496,6 +8531,56 @@ void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
}
void
+nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *peer,
+ u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
+{
+ struct sk_buff *msg;
+ struct nlattr *pinfoattr;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+ nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
+ nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
+ goto nla_put_failure;
+
+ pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
+ if (!pinfoattr)
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, pinfoattr);
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void
nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *peer,
u32 num_packets, gfp_t gfp)
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index 89ce996..9f2616f 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -110,6 +110,11 @@ nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *peer,
u32 num_packets, gfp_t gfp);
+void
+nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *peer,
+ u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
+
void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *bssid,
const u8 *replay_ctr, gfp_t gfp);
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