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Bluetooth: Assign the channel early when binding HCI sockets 

Assignment of the hci_pi(sk)->channel should be done early when binding
the HCI socket. This avoids confusion with the RAW channel that is used
for legacy access.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2016-08-30 05:00:37 +02:00
parent 0ef2c42f8c
commit 5a6d2cf5f1
1 changed files with 11 additions and 5 deletions
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16
net/bluetooth/hci_sock.c
View File

@ -1045,6 +1045,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
atomic_inc(&hdev->promisc);
}
hci_pi(sk)->channel = haddr.hci_channel;
hci_pi(sk)->hdev = hdev;
break;
@ -1107,9 +1108,10 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
}
}
atomic_inc(&hdev->promisc);
hci_pi(sk)->channel = haddr.hci_channel;
hci_pi(sk)->hdev = hdev;
atomic_inc(&hdev->promisc);
break;
case HCI_CHANNEL_MONITOR:
@ -1123,6 +1125,8 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
goto done;
}
hci_pi(sk)->channel = haddr.hci_channel;
/* The monitor interface is restricted to CAP_NET_RAW
* capabilities and with that implicitly trusted.
*/
@ -1149,6 +1153,8 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
err = -EPERM;
goto done;
}
hci_pi(sk)->channel = haddr.hci_channel;
break;
default:
@ -1170,6 +1176,8 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
if (capable(CAP_NET_ADMIN))
hci_sock_set_flag(sk, HCI_SOCK_TRUSTED);
hci_pi(sk)->channel = haddr.hci_channel;
/* At the moment the index and unconfigured index events
* are enabled unconditionally. Setting them on each
* socket when binding keeps this functionality. They
@ -1180,7 +1188,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
* received by untrusted users. Example for such events
* are changes to settings, class of device, name etc.
*/
if (haddr.hci_channel == HCI_CHANNEL_CONTROL) {
if (hci_pi(sk)->channel == HCI_CHANNEL_CONTROL) {
struct sk_buff *skb;
hci_sock_gen_cookie(sk);
@ -1203,8 +1211,6 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
break;
}
hci_pi(sk)->channel = haddr.hci_channel;
sk->sk_state = BT_BOUND;
done: