Bluetooth: mgmt: Add support for setting the local name
This patch adds a new set_local_name management command as well as a
local_name_changed management event. With these user space can both
change the local name as well as monitor changes to it by others.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ffdb2f4..f7ce782 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1256,6 +1256,45 @@
return err;
}
+static int set_local_name(struct sock *sk, u16 index, unsigned char *data,
+ u16 len)
+{
+ struct mgmt_cp_set_local_name *mgmt_cp = (void *) data;
+ struct hci_cp_write_local_name hci_cp;
+ struct hci_dev *hdev;
+ struct pending_cmd *cmd;
+ int err;
+
+ BT_DBG("");
+
+ if (len != sizeof(*mgmt_cp))
+ return cmd_status(sk, index, MGMT_OP_SET_LOCAL_NAME, EINVAL);
+
+ hdev = hci_dev_get(index);
+ if (!hdev)
+ return cmd_status(sk, index, MGMT_OP_SET_LOCAL_NAME, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, index, data, len);
+ if (!cmd) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ memcpy(hci_cp.name, mgmt_cp->name, sizeof(hci_cp.name));
+ err = hci_send_cmd(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(hci_cp),
+ &hci_cp);
+ if (err < 0)
+ mgmt_pending_remove(cmd);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
{
unsigned char *buf;
@@ -1351,6 +1390,9 @@
case MGMT_OP_USER_CONFIRM_NEG_REPLY:
err = user_confirm_reply(sk, index, buf + sizeof(*hdr), len, 0);
break;
+ case MGMT_OP_SET_LOCAL_NAME:
+ err = set_local_name(sk, index, buf + sizeof(*hdr), len);
+ break;
default:
BT_DBG("Unknown op %u", opcode);
err = cmd_status(sk, index, opcode, 0x01);
@@ -1647,3 +1689,36 @@
return mgmt_event(MGMT_EV_AUTH_FAILED, index, &ev, sizeof(ev), NULL);
}
+
+int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status)
+{
+ struct pending_cmd *cmd;
+ struct mgmt_cp_set_local_name ev;
+ int err;
+
+ memset(&ev, 0, sizeof(ev));
+ memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
+
+ cmd = mgmt_pending_find(MGMT_OP_SET_LOCAL_NAME, index);
+ if (!cmd)
+ goto send_event;
+
+ if (status) {
+ err = cmd_status(cmd->sk, index, MGMT_OP_SET_LOCAL_NAME, EIO);
+ goto failed;
+ }
+
+ err = cmd_complete(cmd->sk, index, MGMT_OP_SET_LOCAL_NAME, &ev,
+ sizeof(ev));
+ if (err < 0)
+ goto failed;
+
+send_event:
+ err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, index, &ev, sizeof(ev),
+ cmd ? cmd->sk : NULL);
+
+failed:
+ if (cmd)
+ mgmt_pending_remove(cmd);
+ return err;
+}