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authorJohan Hedberg <johan.hedberg@intel.com>2013-05-17 11:49:23 +0200
committerMarcel Holtmann <marcel@holtmann.org>2013-12-05 16:05:34 +0100
commit3831971355d901ccfb76533a422b4395072849a3 (patch)
tree378ff35f8a2faf3280da767c40a638f94f590fa0 /net/bluetooth/l2cap_sock.c
parentBluetooth: Make l2cap_le_sig_cmd logic consistent (diff)
downloadlinux-3831971355d901ccfb76533a422b4395072849a3.tar.xz
linux-3831971355d901ccfb76533a422b4395072849a3.zip
Bluetooth: Add LE L2CAP flow control mode
The LE connection oriented channels have their own mode with its own data transfer rules. In order to implement this properly we need to distinguish L2CAP channels operating in this mode from other modes. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/l2cap_sock.c')
-rw-r--r--net/bluetooth/l2cap_sock.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 5a1d0cb0b8d5..485ca349fed5 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -130,6 +130,9 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
bacpy(&chan->src, &la.l2_bdaddr);
chan->src_type = la.l2_bdaddr_type;
+ if (chan->psm && bdaddr_type_is_le(chan->src_type))
+ l2cap_le_flowctl_init(chan);
+
chan->state = BT_BOUND;
sk->sk_state = BT_BOUND;
@@ -200,6 +203,9 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
return -EINVAL;
}
+ if (chan->psm && bdaddr_type_is_le(chan->src_type))
+ l2cap_le_flowctl_init(chan);
+
err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
&la.l2_bdaddr, la.l2_bdaddr_type);
if (err)
@@ -237,6 +243,7 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
switch (chan->mode) {
case L2CAP_MODE_BASIC:
+ case L2CAP_MODE_LE_FLOWCTL:
break;
case L2CAP_MODE_ERTM:
case L2CAP_MODE_STREAMING:
@@ -588,6 +595,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
chan->mode = opts.mode;
switch (chan->mode) {
+ case L2CAP_MODE_LE_FLOWCTL:
+ break;
case L2CAP_MODE_BASIC:
clear_bit(CONF_STATE2_DEVICE, &chan->conf_state);
break;
@@ -862,10 +871,16 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
if (sk->sk_state == BT_CONNECT2 && test_bit(BT_SK_DEFER_SETUP,
&bt_sk(sk)->flags)) {
- sk->sk_state = BT_CONFIG;
- pi->chan->state = BT_CONFIG;
+ if (bdaddr_type_is_le(pi->chan->src_type)) {
+ sk->sk_state = BT_CONNECTED;
+ pi->chan->state = BT_CONNECTED;
+ __l2cap_le_connect_rsp_defer(pi->chan);
+ } else {
+ sk->sk_state = BT_CONFIG;
+ pi->chan->state = BT_CONFIG;
+ __l2cap_connect_rsp_defer(pi->chan);
+ }
- __l2cap_connect_rsp_defer(pi->chan);
err = 0;
goto done;
}