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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>
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@ -367,6 +367,7 @@ struct l2cap_chan {
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__u16 flush_to;
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__u8 mode;
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__u8 chan_type;
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__u8 chan_policy;
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__le16 sport;
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@ -467,6 +467,16 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
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break;
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case BT_CHANNEL_POLICY:
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if (!enable_hs) {
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err = -ENOPROTOOPT;
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break;
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}
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if (put_user(chan->chan_policy, (u32 __user *) optval))
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err = -EFAULT;
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break;
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default:
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err = -ENOPROTOOPT;
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break;
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@ -690,6 +700,31 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
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clear_bit(FLAG_FORCE_ACTIVE, &chan->flags);
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break;
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case BT_CHANNEL_POLICY:
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if (!enable_hs) {
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err = -ENOPROTOOPT;
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break;
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}
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if (get_user(opt, (u32 __user *) optval)) {
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err = -EFAULT;
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break;
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}
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if (opt > BT_CHANNEL_POLICY_AMP_PREFERRED) {
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err = -EINVAL;
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break;
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}
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if (chan->mode != L2CAP_MODE_ERTM &&
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chan->mode != L2CAP_MODE_STREAMING) {
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err = -EOPNOTSUPP;
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break;
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}
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chan->chan_policy = (u8) opt;
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break;
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default:
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err = -ENOPROTOOPT;
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break;
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