Andrei -
On Wed, 23 May 2012, Andrei Emeltchenko wrote:
From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Addings ops->ready() helps to separate socket and socketless
L2CAP channels.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 1 +
net/bluetooth/l2cap_core.c | 42 +++++++++++------------------------------
net/bluetooth/l2cap_sock.c | 28 +++++++++++++++++++++++++++
3 files changed, 40 insertions(+), 31 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index a017249..83a67e8 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -530,6 +530,7 @@ struct l2cap_ops {
struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
unsigned long len, int nb);
void (*unlink) (struct l2cap_chan *chan, int err);
+ void (*ready) (struct l2cap_chan *chan);
};
struct l2cap_conn {
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c81b828..d5ea8af 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -407,7 +407,7 @@ struct l2cap_chan *l2cap_chan_create(void)
atomic_set(&chan->refcnt, 1);
- /* This flag is cleared in l2cap_chan_ready() */
+ /* This flag is cleared in l2cap chan ops->ready() */
set_bit(CONF_NOT_COMPLETE, &chan->conf_state);
BT_DBG("chan %p", chan);
@@ -953,36 +953,13 @@ static void l2cap_send_conn_req(struct l2cap_chan *chan)
l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ, sizeof(req), &req);
}
-static void l2cap_chan_ready(struct l2cap_chan *chan)
-{
- struct sock *sk = chan->sk;
- struct sock *parent;
-
- lock_sock(sk);
-
- parent = bt_sk(sk)->parent;
-
- BT_DBG("sk %p, parent %p", sk, parent);
-
- /* This clears all conf flags, including CONF_NOT_COMPLETE */
- chan->conf_state = 0;
- __clear_chan_timer(chan);
-
- __l2cap_state_change(chan, BT_CONNECTED);
- sk->sk_state_change(sk);
-
- if (parent)
- parent->sk_data_ready(parent, 0);
-
- release_sock(sk);
-}
-
static void l2cap_do_start(struct l2cap_chan *chan)
{
struct l2cap_conn *conn = chan->conn;
if (conn->hcon->type == LE_LINK) {
- l2cap_chan_ready(chan);
+ if (chan->ops->ready)
+ chan->ops->ready(chan);
return;
}
@@ -1242,8 +1219,8 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
if (conn->hcon->type == LE_LINK) {
if (smp_conn_security(conn, chan->sec_level))
- l2cap_chan_ready(chan);
-
+ if (chan->ops->ready)
+ chan->ops->ready(chan);
} else if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
struct sock *sk = chan->sk;
__clear_chan_timer(chan);
@@ -3639,7 +3616,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
if (err < 0)
l2cap_send_disconn_req(chan->conn, chan, -err);
else
- l2cap_chan_ready(chan);
+ if (chan->ops->ready)
+ chan->ops->ready(chan);
goto unlock;
}
@@ -3770,7 +3748,8 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
if (err < 0)
l2cap_send_disconn_req(chan->conn, chan, -err);
else
- l2cap_chan_ready(chan);
+ if (chan->ops->ready)
+ chan->ops->ready(chan);
}
done:
@@ -5420,7 +5399,8 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
if (chan->scid == L2CAP_CID_LE_DATA) {
if (!status && encrypt) {
chan->sec_level = hcon->sec_level;
- l2cap_chan_ready(chan);
+ if (chan->ops->ready)
+ chan->ops->ready(chan);
}
l2cap_chan_unlock(chan);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 6749d11..2e078c4 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -978,6 +978,33 @@ static void l2cap_sock_unlink_cb(struct l2cap_chan *chan, int err)
release_sock(sk);
}
+static void l2cap_sock_chan_ready_cb(struct l2cap_chan *chan)
+{
+ struct sock *sk = chan->sk;
+ struct sock *parent;
+
+ lock_sock(sk);
+
+ parent = bt_sk(sk)->parent;
+
+ BT_DBG("sk %p, parent %p", sk, parent);
+
+ __clear_chan_timer(chan);
+
+ /* This clears all conf flags, including CONF_NOT_COMPLETE */
+ chan->conf_state = 0;
+
+ chan->state = BT_CONNECTED;
Similar to patch 1, would there be some benefit to leaving the chan
code (timer clearing, state and conf_state modification) in
l2cap_core? These things need to happen even if chan->ops->ready is
NULL.
+ sk->sk_state = BT_CONNECTED;
+
+ sk->sk_state_change(sk);
+
+ if (parent)
+ parent->sk_data_ready(parent, 0);
+
+ release_sock(sk);
+}
+
static struct l2cap_ops l2cap_chan_ops = {
.name = "L2CAP Socket Interface",
.new_connection = l2cap_sock_new_connection_cb,
@@ -986,6 +1013,7 @@ static struct l2cap_ops l2cap_chan_ops = {
.state_change = l2cap_sock_state_change_cb,
.alloc_skb = l2cap_sock_alloc_skb_cb,
.unlink = l2cap_sock_unlink_cb,
+ .ready = l2cap_sock_chan_ready_cb,
};
static void l2cap_sock_destruct(struct sock *sk)
--
1.7.9.5
--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
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