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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: Mat Martineau <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Mat Martineau 2011-11-02 16:18:30 -07:00 committed by Gustavo F. Padovan
parent d7c4d11c64
commit 2ea664822a
2 changed files with 36 additions and 0 deletions
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1
include/net/bluetooth/l2cap.h
View File

@ -367,6 +367,7 @@ struct l2cap_chan {
__u16 flush_to;
__u8 mode;
__u8 chan_type;
__u8 chan_policy;
__le16 sport;

35
net/bluetooth/l2cap_sock.c
View File

@ -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;