Add NL80211_CMD_ABORT_CAC to the nl80211 interface.
Signed-off-by: Enrique Giraldo <enrique.gira...@galgus.net>
---
include/net/cfg80211.h | 2 ++
include/uapi/linux/nl80211.h | 4 ++++
net/mac80211/cfg.c | 6 ++++++
net/wireless/nl80211.c | 23 +++++++++++++++++++++++
net/wireless/rdev-ops.h | 8 ++++++++
net/wireless/trace.h | 5 +++++
6 files changed, 48 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8ebabc9873d1..60b60fbdce32 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2896,6 +2896,7 @@ struct cfg80211_external_auth_params {
* the scan/scan_done bracket too.
* @abort_scan: Tell the driver to abort an ongoing scan. The driver shall
* indicate the status of the scan through cfg80211_scan_done().
+ * @abort_cac: Tell the driver to abort an ongoing cac.
*
* @auth: Request to authenticate with the specified peer
* (invoked with the wireless_dev mutex held)
@@ -3227,6 +3228,7 @@ struct cfg80211_ops {
int (*scan)(struct wiphy *wiphy,
struct cfg80211_scan_request *request);
void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev);
+ void (*abort_cac)(struct wiphy *wiphy, struct wireless_dev *wdev);
int (*auth)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_auth_request *req);
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 7acc16f34942..4ddcb93f370b 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -932,6 +932,9 @@
* not running. The driver indicates the status of the scan through
* cfg80211_scan_done().
*
+ * @NL80211_CMD_ABORT_CAC: Stop an ongoing CAC. Returns -ENOENT if a CAC
+ * process is not running.
+ *
* @NL80211_CMD_START_NAN: Start NAN operation, identified by its
* %NL80211_ATTR_WDEV interface. This interface must have been
* previously created with %NL80211_CMD_NEW_INTERFACE. After it
@@ -1220,6 +1223,7 @@ enum nl80211_commands {
NL80211_CMD_WIPHY_REG_CHANGE,
NL80211_CMD_ABORT_SCAN,
+ NL80211_CMD_ABORT_CAC,
NL80211_CMD_START_NAN,
NL80211_CMD_STOP_NAN,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d25da0e66da1..2036c91a6e51 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2248,6 +2248,11 @@ static void ieee80211_abort_scan(struct wiphy *wiphy,
struct wireless_dev *wdev)
ieee80211_scan_cancel(wiphy_priv(wiphy));
}
+static void ieee80211_abort_cac(struct wiphy *wiphy, struct wireless_dev *wdev)
+{
+ ieee80211_dfs_cac_cancel(wiphy_priv(wiphy));
+}
+
static int
ieee80211_sched_scan_start(struct wiphy *wiphy,
struct net_device *dev,
@@ -3850,6 +3855,7 @@ const struct cfg80211_ops mac80211_config_ops = {
.resume = ieee80211_resume,
.scan = ieee80211_scan,
.abort_scan = ieee80211_abort_scan,
+ .abort_cac = ieee80211_abort_cac,
.sched_scan_start = ieee80211_sched_scan_start,
.sched_scan_stop = ieee80211_sched_scan_stop,
.auth = ieee80211_auth,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4b8ec659e797..ee80904e098a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7306,6 +7306,21 @@ static int nl80211_abort_scan(struct sk_buff *skb,
struct genl_info *info)
return 0;
}
+static int nl80211_abort_cac(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct wireless_dev *wdev = info->user_ptr[1];
+
+ if (!rdev->ops->abort_cac)
+ return -EOPNOTSUPP;
+
+ if (!wdev->cac_started)
+ return -ENOENT;
+
+ rdev_abort_cac(rdev, wdev);
+ return 0;
+}
+
static int
nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
struct cfg80211_sched_scan_request *request,
@@ -13344,6 +13359,14 @@ static const struct genl_ops nl80211_ops[] = {
.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL80211_CMD_ABORT_CAC,
+ .doit = nl80211_abort_cac,
+ .policy = nl80211_policy,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
+ NL80211_FLAG_NEED_RTNL,
+ },
{
.cmd = NL80211_CMD_GET_SCAN,
.policy = nl80211_policy,
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 364f5d67f05b..edbb11251c03 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -435,6 +435,14 @@ static inline void rdev_abort_scan(struct
cfg80211_registered_device *rdev,
trace_rdev_return_void(&rdev->wiphy);
}
+static inline void rdev_abort_cac(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
+{
+ trace_rdev_abort_cac(&rdev->wiphy, wdev);
+ rdev->ops->abort_cac(&rdev->wiphy, wdev);
+ trace_rdev_return_void(&rdev->wiphy);
+}
+
static inline int rdev_auth(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_auth_request *req)
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 7c73510b161f..a585522c678a 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -3227,6 +3227,11 @@ DEFINE_EVENT(wiphy_wdev_evt, rdev_abort_scan,
TP_ARGS(wiphy, wdev)
);
+DEFINE_EVENT(wiphy_wdev_evt, rdev_abort_cac,
+ TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+ TP_ARGS(wiphy, wdev)
+);
+
TRACE_EVENT(rdev_set_multicast_to_unicast,
TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
const bool enabled),
--
2.18.0
