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Commit 2ea66482 authored by Mat Martineau's avatar Mat Martineau Committed by Gustavo Padovan
Browse files

Bluetooth: Add channel policy to getsockopt/setsockopt 



Each channel has a policy to require BR/EDR (the default),
prefer BR/EDR, or prefer AMP.

Check for valid policy value and L2CAP mode.

Signed-off-by: default avatarMat Martineau <mathewm@codeaurora.org>
Acked-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Acked-by: default avatarAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent d7c4d11c

include/net/bluetooth/l2cap.h

+1 −0
Original line number Diff line number Diff line
@@ -367,6 +367,7 @@ struct l2cap_chan { 
	__u16		flush_to;

	__u8		mode;

	__u8		chan_type;

	__u8		chan_policy;



	__le16		sport;

net/bluetooth/l2cap_sock.c

+35 −0
Original line number Diff line number Diff line
@@ -467,6 +467,16 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch 


		break;



	case BT_CHANNEL_POLICY:

		if (!enable_hs) {

			err = -ENOPROTOOPT;

			break;

		}



		if (put_user(chan->chan_policy, (u32 __user *) optval))

			err = -EFAULT;

		break;



	default:

		err = -ENOPROTOOPT;

		break;
@@ -690,6 +700,31 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch 
			clear_bit(FLAG_FORCE_ACTIVE, &chan->flags);

		break;



	case BT_CHANNEL_POLICY:

		if (!enable_hs) {

			err = -ENOPROTOOPT;

			break;

		}



		if (get_user(opt, (u32 __user *) optval)) {

			err = -EFAULT;

			break;

		}



		if (opt > BT_CHANNEL_POLICY_AMP_PREFERRED) {

			err = -EINVAL;

			break;

		}



		if (chan->mode != L2CAP_MODE_ERTM &&

				chan->mode != L2CAP_MODE_STREAMING) {

			err = -EOPNOTSUPP;

			break;

		}



		chan->chan_policy = (u8) opt;

		break;



	default:

		err = -ENOPROTOOPT;

		break;