Bluetooth: Fix redundant device (un)blocked events
For the Block/Unblock Device mgmt commands we should only emit the
Blocked/Unblocked events on any socket except for the one which received
the command. The code was previously incorrectly trying to look up a
non-existent pending command and thereby ending up not skipping the
command socket for the event.
We can simplify the code a lot by simply sending the event directly from
the command handler functions. We have the reference to the command
socket available there which makes it easy to pass to the mgmt_event
function for skipping.
The only notable side-effect of this is that the old blacklisting
ioctl's no-longer cause mgmt events to be emitted, however as user space
versions using these ioctl's are not mgmt-aware this is acceptable.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 408468c..ba5e215 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3773,11 +3773,16 @@
hci_dev_lock(hdev);
err = hci_blacklist_add(hdev, &cp->addr.bdaddr, cp->addr.type);
- if (err < 0)
+ if (err < 0) {
status = MGMT_STATUS_FAILED;
- else
- status = MGMT_STATUS_SUCCESS;
+ goto done;
+ }
+ mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &cp->addr, sizeof(cp->addr),
+ sk);
+ status = MGMT_STATUS_SUCCESS;
+
+done:
err = cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
&cp->addr, sizeof(cp->addr));
@@ -3803,11 +3808,16 @@
hci_dev_lock(hdev);
err = hci_blacklist_del(hdev, &cp->addr.bdaddr, cp->addr.type);
- if (err < 0)
+ if (err < 0) {
status = MGMT_STATUS_INVALID_PARAMS;
- else
- status = MGMT_STATUS_SUCCESS;
+ goto done;
+ }
+ mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &cp->addr, sizeof(cp->addr),
+ sk);
+ status = MGMT_STATUS_SUCCESS;
+
+done:
err = cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
&cp->addr, sizeof(cp->addr));
@@ -6346,34 +6356,6 @@
mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
}
-int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
-{
- struct pending_cmd *cmd;
- struct mgmt_ev_device_blocked ev;
-
- cmd = mgmt_pending_find(MGMT_OP_BLOCK_DEVICE, hdev);
-
- bacpy(&ev.addr.bdaddr, bdaddr);
- ev.addr.type = type;
-
- return mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &ev, sizeof(ev),
- cmd ? cmd->sk : NULL);
-}
-
-int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
-{
- struct pending_cmd *cmd;
- struct mgmt_ev_device_unblocked ev;
-
- cmd = mgmt_pending_find(MGMT_OP_UNBLOCK_DEVICE, hdev);
-
- bacpy(&ev.addr.bdaddr, bdaddr);
- ev.addr.type = type;
-
- return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev),
- cmd ? cmd->sk : NULL);
-}
-
static void adv_enable_complete(struct hci_dev *hdev, u8 status)
{
BT_DBG("%s status %u", hdev->name, status);