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Subject[PATCH v1 6/7] Bluetooth: Notify adv monitor removed event
Date
This notifies management sockets on MGMT_EV_ADV_MONITOR_REMOVED event.

The following test was performed.
- Start two btmgmt consoles, issue a btmgmt advmon-remove command on one
console and observe a MGMT_EV_ADV_MONITOR_REMOVED event on the other.

Signed-off-by: Miao-chen Chou <mcchou@chromium.org>
---

net/bluetooth/mgmt.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index da65b6ab2e3a0..728d79663cbcf 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -156,6 +156,7 @@ static const u16 mgmt_events[] = {
MGMT_EV_PHY_CONFIGURATION_CHANGED,
MGMT_EV_EXP_FEATURE_CHANGED,
MGMT_EV_ADV_MONITOR_ADDED,
+ MGMT_EV_ADV_MONITOR_REMOVED,
};

static const u16 mgmt_untrusted_commands[] = {
@@ -3864,6 +3865,16 @@ static void mgmt_adv_monitor_added(struct sock *sk, struct hci_dev *hdev,
mgmt_event(MGMT_EV_ADV_MONITOR_ADDED, hdev, &ev, sizeof(ev), sk);
}

+static void mgmt_adv_monitor_removed(struct sock *sk, struct hci_dev *hdev,
+ u16 handle)
+{
+ struct mgmt_ev_adv_monitor_added ev;
+
+ ev.monitor_handle = handle;
+
+ mgmt_event(MGMT_EV_ADV_MONITOR_REMOVED, hdev, &ev, sizeof(ev), sk);
+}
+
static int read_adv_monitor_features(struct sock *sk, struct hci_dev *hdev,
void *data, u16 len)
{
@@ -4014,12 +4025,15 @@ static int remove_adv_monitor(struct sock *sk, struct hci_dev *hdev,
{
struct mgmt_cp_remove_adv_monitor *cp = data;
struct mgmt_rp_remove_adv_monitor rp;
+ unsigned int prev_adv_monitors_cnt;
int err;

BT_DBG("request for %s", hdev->name);

hci_dev_lock(hdev);

+ prev_adv_monitors_cnt = hdev->adv_monitors_cnt;
+
err = hci_remove_adv_monitor(hdev, cp->monitor_handle);
if (err == -ENOENT) {
err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADV_MONITOR,
@@ -4027,6 +4041,9 @@ static int remove_adv_monitor(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}

+ if (hdev->adv_monitors_cnt < prev_adv_monitors_cnt)
+ mgmt_adv_monitor_removed(sk, hdev, cp->monitor_handle);
+
hci_dev_unlock(hdev);

rp.monitor_handle = cp->monitor_handle;
--
2.26.2
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