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Bluetooth: Add chan->ops->defer() 

When DEFER_SETUP is set defer() will trigger an authorization
request to the userspace.

l2cap_chan_no_defer() is meant to be used when one does not want to
support DEFER_SETUP (A2MP for example).

Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Gustavo Padovan 2012-10-12 19:35:24 +08:00
parent 644912e18a
commit 2dc4e5105f
4 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/net/bluetooth/l2cap.h
View File

@ -541,6 +541,7 @@ struct l2cap_ops {
void (*state_change) (struct l2cap_chan *chan,
int state);
void (*ready) (struct l2cap_chan *chan);
void (*defer) (struct l2cap_chan *chan);
struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
unsigned long len, int nb);
};
@ -748,6 +749,10 @@ static inline void l2cap_chan_no_ready(struct l2cap_chan *chan)
{
}
static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
{
}
extern bool disable_ertm;
int l2cap_init_sockets(void);

1
net/bluetooth/a2mp.c
View File

@ -699,6 +699,7 @@ static struct l2cap_ops a2mp_chan_ops = {
.new_connection = l2cap_chan_no_new_connection,
.teardown = l2cap_chan_no_teardown,
.ready = l2cap_chan_no_ready,
.defer = l2cap_chan_no_defer,
};
static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)

10
net/bluetooth/l2cap_core.c
View File

@ -1120,11 +1120,9 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
lock_sock(sk);
if (test_bit(BT_SK_DEFER_SETUP,
&bt_sk(sk)->flags)) {
struct sock *parent = bt_sk(sk)->parent;
rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
if (parent)
parent->sk_data_ready(parent, 0);
chan->ops->defer(chan);
} else {
__l2cap_state_change(chan, BT_CONFIG);
@ -3460,7 +3458,7 @@ static void __l2cap_connect(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd,
__l2cap_state_change(chan, BT_CONNECT2);
result = L2CAP_CR_PEND;
status = L2CAP_CS_AUTHOR_PEND;
parent->sk_data_ready(parent, 0);
chan->ops->defer(chan);
} else {
__l2cap_state_change(chan, BT_CONFIG);
result = L2CAP_CR_SUCCESS;
@ -5523,11 +5521,9 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
if (!status) {
if (test_bit(BT_SK_DEFER_SETUP,
&bt_sk(sk)->flags)) {
struct sock *parent = bt_sk(sk)->parent;
res = L2CAP_CR_PEND;
stat = L2CAP_CS_AUTHOR_PEND;
if (parent)
parent->sk_data_ready(parent, 0);
chan->ops->defer(chan);
} else {
__l2cap_state_change(chan, BT_CONFIG);
res = L2CAP_CR_SUCCESS;

10
net/bluetooth/l2cap_sock.c
View File

@ -1081,6 +1081,15 @@ static void l2cap_sock_ready_cb(struct l2cap_chan *chan)
release_sock(sk);
}
static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
{
struct sock *sk = chan->data;
struct sock *parent = bt_sk(sk)->parent;
if (parent)
parent->sk_data_ready(parent, 0);
}
static struct l2cap_ops l2cap_chan_ops = {
.name = "L2CAP Socket Interface",
.new_connection = l2cap_sock_new_connection_cb,
@ -1089,6 +1098,7 @@ static struct l2cap_ops l2cap_chan_ops = {
.teardown = l2cap_sock_teardown_cb,
.state_change = l2cap_sock_state_change_cb,
.ready = l2cap_sock_ready_cb,
.defer = l2cap_sock_defer_cb,
.alloc_skb = l2cap_sock_alloc_skb_cb,
};