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@xxxxxxxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 1 +
net/bluetooth/l2cap_sock.c | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index fd090db..b0c9345 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -366,6 +366,7 @@ struct l2cap_chan {
__u16 flush_to;
__u8 mode;
__u8 chan_type;
+ __u8 chan_policy;
__le16 sport;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 836d12e..1230e6e 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -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 = -EINVAL;
+ break;
+ }
+
+ chan->chan_policy = (u8) opt;
+ break;
+
default:
err = -ENOPROTOOPT;
break;
--
1.7.7
--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
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