The HCI socket bind handling checks a few too many times the channel
we are binding. So centralize this and make the function easier to read.
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
net/bluetooth/hci_sock.c | 47 ++++++++++++++++++++++++++++++---------------
1 files changed, 31 insertions(+), 16 deletions(-)
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 3d4d669..1b47d71 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -367,34 +367,49 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
if (haddr.hci_family != AF_BLUETOOTH)
return -EINVAL;
- if (haddr.hci_channel > HCI_CHANNEL_CONTROL)
- return -EINVAL;
-
- if (haddr.hci_channel == HCI_CHANNEL_CONTROL) {
- if (!enable_mgmt)
- return -EINVAL;
- set_bit(HCI_PI_MGMT_INIT, &hci_pi(sk)->flags);
- }
-
lock_sock(sk);
- if (sk->sk_state == BT_BOUND || hci_pi(sk)->hdev) {
+ if (sk->sk_state == BT_BOUND) {
err = -EALREADY;
goto done;
}
- if (haddr.hci_dev != HCI_DEV_NONE) {
- hdev = hci_dev_get(haddr.hci_dev);
- if (!hdev) {
- err = -ENODEV;
+ switch (haddr.hci_channel) {
+ case HCI_CHANNEL_RAW:
+ if (hci_pi(sk)->hdev) {
+ err = -EALREADY;
goto done;
}
- atomic_inc(&hdev->promisc);
+ if (haddr.hci_dev != HCI_DEV_NONE) {
+ hdev = hci_dev_get(haddr.hci_dev);
+ if (!hdev) {
+ err = -ENODEV;
+ goto done;
+ }
+
+ atomic_inc(&hdev->promisc);
+ }
+
+ hci_pi(sk)->hdev = hdev;
+ break;
+
+ case HCI_CHANNEL_CONTROL:
+ if (haddr.hci_dev != HCI_DEV_NONE || !enable_mgmt) {
+ err = -EINVAL;
+ goto done;
+ }
+
+ set_bit(HCI_PI_MGMT_INIT, &hci_pi(sk)->flags);
+ break;
+
+ default:
+ err = -EINVAL;
+ goto done;
}
+
hci_pi(sk)->channel = haddr.hci_channel;
- hci_pi(sk)->hdev = hdev;
sk->sk_state = BT_BOUND;
done:
--
1.7.7.6
--
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