Bluetooth: Convert mgmt to use HCI chan registration API
This patch converts the existing mgmt code to use the newly introduced
generic API for registering HCI channels with mgmt-like semantics.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 6bb97df..e598ca0 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -354,6 +354,9 @@
int sco_init(void);
void sco_exit(void);
+int mgmt_init(void);
+void mgmt_exit(void);
+
void bt_sock_reclassify_lock(struct sock *sk, int proto);
#endif /* __BLUETOOTH_H */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0c84d48..b2a183d 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1309,7 +1309,9 @@
#define DISCOV_BREDR_INQUIRY_LEN 0x08
#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
-int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
+int mgmt_control(struct hci_mgmt_chan *chan, struct sock *sk,
+ struct msghdr *msg, size_t msglen);
+
int mgmt_new_settings(struct hci_dev *hdev);
void mgmt_index_added(struct hci_dev *hdev);
void mgmt_index_removed(struct hci_dev *hdev);
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 20a4698..70f9d94 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -749,6 +749,13 @@
goto sock_err;
}
+ err = mgmt_init();
+ if (err < 0) {
+ sco_exit();
+ l2cap_exit();
+ goto sock_err;
+ }
+
return 0;
sock_err:
@@ -763,6 +770,8 @@
static void __exit bt_exit(void)
{
+ mgmt_exit();
+
sco_exit();
l2cap_exit();
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 0d5ace8..aa9ffcb 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -741,19 +741,6 @@
hci_pi(sk)->hdev = hdev;
break;
- case HCI_CHANNEL_CONTROL:
- if (haddr.hci_dev != HCI_DEV_NONE) {
- err = -EINVAL;
- goto done;
- }
-
- if (!capable(CAP_NET_ADMIN)) {
- err = -EPERM;
- goto done;
- }
-
- break;
-
case HCI_CHANNEL_MONITOR:
if (haddr.hci_dev != HCI_DEV_NONE) {
err = -EINVAL;
@@ -900,7 +887,6 @@
hci_sock_cmsg(sk, msg, skb);
break;
case HCI_CHANNEL_USER:
- case HCI_CHANNEL_CONTROL:
case HCI_CHANNEL_MONITOR:
sock_recv_timestamp(msg, sk, skb);
break;
@@ -941,9 +927,6 @@
case HCI_CHANNEL_RAW:
case HCI_CHANNEL_USER:
break;
- case HCI_CHANNEL_CONTROL:
- err = mgmt_control(sk, msg, len);
- goto done;
case HCI_CHANNEL_MONITOR:
err = -EOPNOTSUPP;
goto done;
@@ -951,7 +934,7 @@
mutex_lock(&mgmt_chan_list_lock);
chan = __hci_mgmt_chan_find(hci_pi(sk)->channel);
if (chan)
- err = -ENOSYS; /* FIXME: call handler */
+ err = mgmt_control(chan, sk, msg, len);
else
err = -EINVAL;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d185a98..bb02dd1 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -6130,12 +6130,7 @@
return err;
}
-static const struct mgmt_handler {
- int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
- u16 data_len);
- bool var_len;
- size_t data_len;
-} mgmt_handlers[] = {
+static const struct hci_mgmt_handler mgmt_handlers[] = {
{ NULL }, /* 0x0000 (no command) */
{ read_version, false, MGMT_READ_VERSION_SIZE },
{ read_commands, false, MGMT_READ_COMMANDS_SIZE },
@@ -6197,14 +6192,15 @@
{ start_service_discovery,true, MGMT_START_SERVICE_DISCOVERY_SIZE },
};
-int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
+int mgmt_control(struct hci_mgmt_chan *chan, struct sock *sk,
+ struct msghdr *msg, size_t msglen)
{
void *buf;
u8 *cp;
struct mgmt_hdr *hdr;
u16 opcode, index, len;
struct hci_dev *hdev = NULL;
- const struct mgmt_handler *handler;
+ const struct hci_mgmt_handler *handler;
int err;
BT_DBG("got %zu bytes", msglen);
@@ -6257,8 +6253,8 @@
}
}
- if (opcode >= ARRAY_SIZE(mgmt_handlers) ||
- mgmt_handlers[opcode].func == NULL) {
+ if (opcode >= chan->handler_count ||
+ chan->handlers[opcode].func == NULL) {
BT_DBG("Unknown op %u", opcode);
err = cmd_status(sk, index, opcode,
MGMT_STATUS_UNKNOWN_COMMAND);
@@ -6279,7 +6275,7 @@
goto done;
}
- handler = &mgmt_handlers[opcode];
+ handler = &chan->handlers[opcode];
if ((handler->var_len && len < handler->data_len) ||
(!handler->var_len && len != handler->data_len)) {
@@ -7470,3 +7466,19 @@
enable_advertising(&req);
hci_req_run(&req, adv_enable_complete);
}
+
+static struct hci_mgmt_chan chan = {
+ .channel = HCI_CHANNEL_CONTROL,
+ .handler_count = ARRAY_SIZE(mgmt_handlers),
+ .handlers = mgmt_handlers,
+};
+
+int mgmt_init(void)
+{
+ return hci_mgmt_chan_register(&chan);
+}
+
+void mgmt_exit(void)
+{
+ hci_mgmt_chan_unregister(&chan);
+}