/*
|
/*
|
BlueZ - Bluetooth protocol stack for Linux
|
BlueZ - Bluetooth protocol stack for Linux
|
Copyright (C) 2000-2001 Qualcomm Incorporated
|
Copyright (C) 2000-2001 Qualcomm Incorporated
|
|
|
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
|
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
|
|
|
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License version 2 as
|
it under the terms of the GNU General Public License version 2 as
|
published by the Free Software Foundation;
|
published by the Free Software Foundation;
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
|
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
|
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
|
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
|
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
|
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
|
SOFTWARE IS DISCLAIMED.
|
SOFTWARE IS DISCLAIMED.
|
*/
|
*/
|
|
|
/*
|
/*
|
* BlueZ SCO sockets.
|
* BlueZ SCO sockets.
|
*
|
*
|
* $Id: sco.c,v 1.1.1.1 2004-04-15 01:17:01 phoenix Exp $
|
* $Id: sco.c,v 1.1.1.1 2004-04-15 01:17:01 phoenix Exp $
|
*/
|
*/
|
#define VERSION "0.3"
|
#define VERSION "0.3"
|
|
|
#include <linux/config.h>
|
#include <linux/config.h>
|
#include <linux/module.h>
|
#include <linux/module.h>
|
|
|
#include <linux/types.h>
|
#include <linux/types.h>
|
#include <linux/errno.h>
|
#include <linux/errno.h>
|
#include <linux/kernel.h>
|
#include <linux/kernel.h>
|
#include <linux/major.h>
|
#include <linux/major.h>
|
#include <linux/sched.h>
|
#include <linux/sched.h>
|
#include <linux/slab.h>
|
#include <linux/slab.h>
|
#include <linux/poll.h>
|
#include <linux/poll.h>
|
#include <linux/fcntl.h>
|
#include <linux/fcntl.h>
|
#include <linux/init.h>
|
#include <linux/init.h>
|
#include <linux/skbuff.h>
|
#include <linux/skbuff.h>
|
#include <linux/interrupt.h>
|
#include <linux/interrupt.h>
|
#include <linux/socket.h>
|
#include <linux/socket.h>
|
#include <linux/skbuff.h>
|
#include <linux/skbuff.h>
|
#include <linux/proc_fs.h>
|
#include <linux/proc_fs.h>
|
#include <linux/list.h>
|
#include <linux/list.h>
|
#include <net/sock.h>
|
#include <net/sock.h>
|
|
|
#include <asm/system.h>
|
#include <asm/system.h>
|
#include <asm/uaccess.h>
|
#include <asm/uaccess.h>
|
|
|
#include <net/bluetooth/bluetooth.h>
|
#include <net/bluetooth/bluetooth.h>
|
#include <net/bluetooth/hci_core.h>
|
#include <net/bluetooth/hci_core.h>
|
#include <net/bluetooth/sco.h>
|
#include <net/bluetooth/sco.h>
|
|
|
#ifndef SCO_DEBUG
|
#ifndef SCO_DEBUG
|
#undef BT_DBG
|
#undef BT_DBG
|
#define BT_DBG( A... )
|
#define BT_DBG( A... )
|
#endif
|
#endif
|
|
|
static struct proto_ops sco_sock_ops;
|
static struct proto_ops sco_sock_ops;
|
|
|
static struct bluez_sock_list sco_sk_list = {
|
static struct bluez_sock_list sco_sk_list = {
|
lock: RW_LOCK_UNLOCKED
|
lock: RW_LOCK_UNLOCKED
|
};
|
};
|
|
|
static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent);
|
static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent);
|
static void sco_chan_del(struct sock *sk, int err);
|
static void sco_chan_del(struct sock *sk, int err);
|
static inline struct sock * sco_chan_get(struct sco_conn *conn);
|
static inline struct sock * sco_chan_get(struct sco_conn *conn);
|
|
|
static int sco_conn_del(struct hci_conn *conn, int err);
|
static int sco_conn_del(struct hci_conn *conn, int err);
|
|
|
static void sco_sock_close(struct sock *sk);
|
static void sco_sock_close(struct sock *sk);
|
static void sco_sock_kill(struct sock *sk);
|
static void sco_sock_kill(struct sock *sk);
|
|
|
/* ----- SCO timers ------ */
|
/* ----- SCO timers ------ */
|
static void sco_sock_timeout(unsigned long arg)
|
static void sco_sock_timeout(unsigned long arg)
|
{
|
{
|
struct sock *sk = (struct sock *) arg;
|
struct sock *sk = (struct sock *) arg;
|
|
|
BT_DBG("sock %p state %d", sk, sk->state);
|
BT_DBG("sock %p state %d", sk, sk->state);
|
|
|
bh_lock_sock(sk);
|
bh_lock_sock(sk);
|
sk->err = ETIMEDOUT;
|
sk->err = ETIMEDOUT;
|
sk->state_change(sk);
|
sk->state_change(sk);
|
bh_unlock_sock(sk);
|
bh_unlock_sock(sk);
|
|
|
sco_sock_kill(sk);
|
sco_sock_kill(sk);
|
sock_put(sk);
|
sock_put(sk);
|
}
|
}
|
|
|
static void sco_sock_set_timer(struct sock *sk, long timeout)
|
static void sco_sock_set_timer(struct sock *sk, long timeout)
|
{
|
{
|
BT_DBG("sock %p state %d timeout %ld", sk, sk->state, timeout);
|
BT_DBG("sock %p state %d timeout %ld", sk, sk->state, timeout);
|
|
|
if (!mod_timer(&sk->timer, jiffies + timeout))
|
if (!mod_timer(&sk->timer, jiffies + timeout))
|
sock_hold(sk);
|
sock_hold(sk);
|
}
|
}
|
|
|
static void sco_sock_clear_timer(struct sock *sk)
|
static void sco_sock_clear_timer(struct sock *sk)
|
{
|
{
|
BT_DBG("sock %p state %d", sk, sk->state);
|
BT_DBG("sock %p state %d", sk, sk->state);
|
|
|
if (timer_pending(&sk->timer) && del_timer(&sk->timer))
|
if (timer_pending(&sk->timer) && del_timer(&sk->timer))
|
__sock_put(sk);
|
__sock_put(sk);
|
}
|
}
|
|
|
static void sco_sock_init_timer(struct sock *sk)
|
static void sco_sock_init_timer(struct sock *sk)
|
{
|
{
|
init_timer(&sk->timer);
|
init_timer(&sk->timer);
|
sk->timer.function = sco_sock_timeout;
|
sk->timer.function = sco_sock_timeout;
|
sk->timer.data = (unsigned long)sk;
|
sk->timer.data = (unsigned long)sk;
|
}
|
}
|
|
|
/* -------- SCO connections --------- */
|
/* -------- SCO connections --------- */
|
static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
|
static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
|
{
|
{
|
struct hci_dev *hdev = hcon->hdev;
|
struct hci_dev *hdev = hcon->hdev;
|
struct sco_conn *conn;
|
struct sco_conn *conn;
|
|
|
if ((conn = hcon->sco_data))
|
if ((conn = hcon->sco_data))
|
return conn;
|
return conn;
|
|
|
if (status)
|
if (status)
|
return conn;
|
return conn;
|
|
|
if (!(conn = kmalloc(sizeof(struct sco_conn), GFP_ATOMIC)))
|
if (!(conn = kmalloc(sizeof(struct sco_conn), GFP_ATOMIC)))
|
return NULL;
|
return NULL;
|
memset(conn, 0, sizeof(struct sco_conn));
|
memset(conn, 0, sizeof(struct sco_conn));
|
|
|
spin_lock_init(&conn->lock);
|
spin_lock_init(&conn->lock);
|
|
|
hcon->sco_data = conn;
|
hcon->sco_data = conn;
|
conn->hcon = hcon;
|
conn->hcon = hcon;
|
|
|
conn->src = &hdev->bdaddr;
|
conn->src = &hdev->bdaddr;
|
conn->dst = &hcon->dst;
|
conn->dst = &hcon->dst;
|
|
|
if (hdev->sco_mtu > 0)
|
if (hdev->sco_mtu > 0)
|
conn->mtu = hdev->sco_mtu;
|
conn->mtu = hdev->sco_mtu;
|
else
|
else
|
conn->mtu = 60;
|
conn->mtu = 60;
|
|
|
BT_DBG("hcon %p conn %p", hcon, conn);
|
BT_DBG("hcon %p conn %p", hcon, conn);
|
|
|
MOD_INC_USE_COUNT;
|
MOD_INC_USE_COUNT;
|
return conn;
|
return conn;
|
}
|
}
|
|
|
static int sco_conn_del(struct hci_conn *hcon, int err)
|
static int sco_conn_del(struct hci_conn *hcon, int err)
|
{
|
{
|
struct sco_conn *conn;
|
struct sco_conn *conn;
|
struct sock *sk;
|
struct sock *sk;
|
|
|
if (!(conn = hcon->sco_data))
|
if (!(conn = hcon->sco_data))
|
return 0;
|
return 0;
|
|
|
BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
|
BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
|
|
|
/* Kill socket */
|
/* Kill socket */
|
if ((sk = sco_chan_get(conn))) {
|
if ((sk = sco_chan_get(conn))) {
|
bh_lock_sock(sk);
|
bh_lock_sock(sk);
|
sco_sock_clear_timer(sk);
|
sco_sock_clear_timer(sk);
|
sco_chan_del(sk, err);
|
sco_chan_del(sk, err);
|
bh_unlock_sock(sk);
|
bh_unlock_sock(sk);
|
sco_sock_kill(sk);
|
sco_sock_kill(sk);
|
}
|
}
|
|
|
hcon->sco_data = NULL;
|
hcon->sco_data = NULL;
|
kfree(conn);
|
kfree(conn);
|
|
|
MOD_DEC_USE_COUNT;
|
MOD_DEC_USE_COUNT;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int sco_connect(struct sock *sk)
|
int sco_connect(struct sock *sk)
|
{
|
{
|
bdaddr_t *src = &bluez_pi(sk)->src;
|
bdaddr_t *src = &bluez_pi(sk)->src;
|
bdaddr_t *dst = &bluez_pi(sk)->dst;
|
bdaddr_t *dst = &bluez_pi(sk)->dst;
|
struct sco_conn *conn;
|
struct sco_conn *conn;
|
struct hci_conn *hcon;
|
struct hci_conn *hcon;
|
struct hci_dev *hdev;
|
struct hci_dev *hdev;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("%s -> %s", batostr(src), batostr(dst));
|
BT_DBG("%s -> %s", batostr(src), batostr(dst));
|
|
|
if (!(hdev = hci_get_route(dst, src)))
|
if (!(hdev = hci_get_route(dst, src)))
|
return -EHOSTUNREACH;
|
return -EHOSTUNREACH;
|
|
|
hci_dev_lock_bh(hdev);
|
hci_dev_lock_bh(hdev);
|
|
|
err = -ENOMEM;
|
err = -ENOMEM;
|
|
|
hcon = hci_connect(hdev, SCO_LINK, dst);
|
hcon = hci_connect(hdev, SCO_LINK, dst);
|
if (!hcon)
|
if (!hcon)
|
goto done;
|
goto done;
|
|
|
conn = sco_conn_add(hcon, 0);
|
conn = sco_conn_add(hcon, 0);
|
if (!conn) {
|
if (!conn) {
|
hci_conn_put(hcon);
|
hci_conn_put(hcon);
|
goto done;
|
goto done;
|
}
|
}
|
|
|
/* Update source addr of the socket */
|
/* Update source addr of the socket */
|
bacpy(src, conn->src);
|
bacpy(src, conn->src);
|
|
|
err = sco_chan_add(conn, sk, NULL);
|
err = sco_chan_add(conn, sk, NULL);
|
if (err)
|
if (err)
|
goto done;
|
goto done;
|
|
|
if (hcon->state == BT_CONNECTED) {
|
if (hcon->state == BT_CONNECTED) {
|
sco_sock_clear_timer(sk);
|
sco_sock_clear_timer(sk);
|
sk->state = BT_CONNECTED;
|
sk->state = BT_CONNECTED;
|
} else {
|
} else {
|
sk->state = BT_CONNECT;
|
sk->state = BT_CONNECT;
|
sco_sock_set_timer(sk, sk->sndtimeo);
|
sco_sock_set_timer(sk, sk->sndtimeo);
|
}
|
}
|
done:
|
done:
|
hci_dev_unlock_bh(hdev);
|
hci_dev_unlock_bh(hdev);
|
hci_dev_put(hdev);
|
hci_dev_put(hdev);
|
return err;
|
return err;
|
}
|
}
|
|
|
static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
|
static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
|
{
|
{
|
struct sco_conn *conn = sco_pi(sk)->conn;
|
struct sco_conn *conn = sco_pi(sk)->conn;
|
struct sk_buff *skb;
|
struct sk_buff *skb;
|
int err, count;
|
int err, count;
|
|
|
/* Check outgoing MTU */
|
/* Check outgoing MTU */
|
if (len > conn->mtu)
|
if (len > conn->mtu)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
BT_DBG("sk %p len %d", sk, len);
|
BT_DBG("sk %p len %d", sk, len);
|
|
|
count = MIN(conn->mtu, len);
|
count = MIN(conn->mtu, len);
|
if (!(skb = bluez_skb_send_alloc(sk, count, msg->msg_flags & MSG_DONTWAIT, &err)))
|
if (!(skb = bluez_skb_send_alloc(sk, count, msg->msg_flags & MSG_DONTWAIT, &err)))
|
return err;
|
return err;
|
|
|
if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) {
|
if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) {
|
err = -EFAULT;
|
err = -EFAULT;
|
goto fail;
|
goto fail;
|
}
|
}
|
|
|
if ((err = hci_send_sco(conn->hcon, skb)) < 0)
|
if ((err = hci_send_sco(conn->hcon, skb)) < 0)
|
goto fail;
|
goto fail;
|
|
|
return count;
|
return count;
|
|
|
fail:
|
fail:
|
kfree_skb(skb);
|
kfree_skb(skb);
|
return err;
|
return err;
|
}
|
}
|
|
|
static inline void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
|
static inline void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
|
{
|
{
|
struct sock *sk = sco_chan_get(conn);
|
struct sock *sk = sco_chan_get(conn);
|
|
|
if (!sk)
|
if (!sk)
|
goto drop;
|
goto drop;
|
|
|
BT_DBG("sk %p len %d", sk, skb->len);
|
BT_DBG("sk %p len %d", sk, skb->len);
|
|
|
if (sk->state != BT_CONNECTED)
|
if (sk->state != BT_CONNECTED)
|
goto drop;
|
goto drop;
|
|
|
if (!sock_queue_rcv_skb(sk, skb))
|
if (!sock_queue_rcv_skb(sk, skb))
|
return;
|
return;
|
|
|
drop:
|
drop:
|
kfree_skb(skb);
|
kfree_skb(skb);
|
return;
|
return;
|
}
|
}
|
|
|
/* -------- Socket interface ---------- */
|
/* -------- Socket interface ---------- */
|
static struct sock *__sco_get_sock_by_addr(bdaddr_t *ba)
|
static struct sock *__sco_get_sock_by_addr(bdaddr_t *ba)
|
{
|
{
|
struct sock *sk;
|
struct sock *sk;
|
|
|
for (sk = sco_sk_list.head; sk; sk = sk->next) {
|
for (sk = sco_sk_list.head; sk; sk = sk->next) {
|
if (!bacmp(&bluez_pi(sk)->src, ba))
|
if (!bacmp(&bluez_pi(sk)->src, ba))
|
break;
|
break;
|
}
|
}
|
|
|
return sk;
|
return sk;
|
}
|
}
|
|
|
/* Find socket listening on source bdaddr.
|
/* Find socket listening on source bdaddr.
|
* Returns closest match.
|
* Returns closest match.
|
*/
|
*/
|
static struct sock *sco_get_sock_listen(bdaddr_t *src)
|
static struct sock *sco_get_sock_listen(bdaddr_t *src)
|
{
|
{
|
struct sock *sk, *sk1 = NULL;
|
struct sock *sk, *sk1 = NULL;
|
|
|
read_lock(&sco_sk_list.lock);
|
read_lock(&sco_sk_list.lock);
|
|
|
for (sk = sco_sk_list.head; sk; sk = sk->next) {
|
for (sk = sco_sk_list.head; sk; sk = sk->next) {
|
if (sk->state != BT_LISTEN)
|
if (sk->state != BT_LISTEN)
|
continue;
|
continue;
|
|
|
/* Exact match. */
|
/* Exact match. */
|
if (!bacmp(&bluez_pi(sk)->src, src))
|
if (!bacmp(&bluez_pi(sk)->src, src))
|
break;
|
break;
|
|
|
/* Closest match */
|
/* Closest match */
|
if (!bacmp(&bluez_pi(sk)->src, BDADDR_ANY))
|
if (!bacmp(&bluez_pi(sk)->src, BDADDR_ANY))
|
sk1 = sk;
|
sk1 = sk;
|
}
|
}
|
|
|
read_unlock(&sco_sk_list.lock);
|
read_unlock(&sco_sk_list.lock);
|
|
|
return sk ? sk : sk1;
|
return sk ? sk : sk1;
|
}
|
}
|
|
|
static void sco_sock_destruct(struct sock *sk)
|
static void sco_sock_destruct(struct sock *sk)
|
{
|
{
|
BT_DBG("sk %p", sk);
|
BT_DBG("sk %p", sk);
|
|
|
skb_queue_purge(&sk->receive_queue);
|
skb_queue_purge(&sk->receive_queue);
|
skb_queue_purge(&sk->write_queue);
|
skb_queue_purge(&sk->write_queue);
|
|
|
MOD_DEC_USE_COUNT;
|
MOD_DEC_USE_COUNT;
|
}
|
}
|
|
|
static void sco_sock_cleanup_listen(struct sock *parent)
|
static void sco_sock_cleanup_listen(struct sock *parent)
|
{
|
{
|
struct sock *sk;
|
struct sock *sk;
|
|
|
BT_DBG("parent %p", parent);
|
BT_DBG("parent %p", parent);
|
|
|
/* Close not yet accepted channels */
|
/* Close not yet accepted channels */
|
while ((sk = bluez_accept_dequeue(parent, NULL))) {
|
while ((sk = bluez_accept_dequeue(parent, NULL))) {
|
sco_sock_close(sk);
|
sco_sock_close(sk);
|
sco_sock_kill(sk);
|
sco_sock_kill(sk);
|
}
|
}
|
|
|
parent->state = BT_CLOSED;
|
parent->state = BT_CLOSED;
|
parent->zapped = 1;
|
parent->zapped = 1;
|
}
|
}
|
|
|
/* Kill socket (only if zapped and orphan)
|
/* Kill socket (only if zapped and orphan)
|
* Must be called on unlocked socket.
|
* Must be called on unlocked socket.
|
*/
|
*/
|
static void sco_sock_kill(struct sock *sk)
|
static void sco_sock_kill(struct sock *sk)
|
{
|
{
|
if (!sk->zapped || sk->socket)
|
if (!sk->zapped || sk->socket)
|
return;
|
return;
|
|
|
BT_DBG("sk %p state %d", sk, sk->state);
|
BT_DBG("sk %p state %d", sk, sk->state);
|
|
|
/* Kill poor orphan */
|
/* Kill poor orphan */
|
bluez_sock_unlink(&sco_sk_list, sk);
|
bluez_sock_unlink(&sco_sk_list, sk);
|
sk->dead = 1;
|
sk->dead = 1;
|
sock_put(sk);
|
sock_put(sk);
|
}
|
}
|
|
|
/* Close socket.
|
/* Close socket.
|
* Must be called on unlocked socket.
|
* Must be called on unlocked socket.
|
*/
|
*/
|
static void sco_sock_close(struct sock *sk)
|
static void sco_sock_close(struct sock *sk)
|
{
|
{
|
struct sco_conn *conn;
|
struct sco_conn *conn;
|
|
|
sco_sock_clear_timer(sk);
|
sco_sock_clear_timer(sk);
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
conn = sco_pi(sk)->conn;
|
conn = sco_pi(sk)->conn;
|
|
|
BT_DBG("sk %p state %d conn %p socket %p", sk, sk->state, conn, sk->socket);
|
BT_DBG("sk %p state %d conn %p socket %p", sk, sk->state, conn, sk->socket);
|
|
|
switch (sk->state) {
|
switch (sk->state) {
|
case BT_LISTEN:
|
case BT_LISTEN:
|
sco_sock_cleanup_listen(sk);
|
sco_sock_cleanup_listen(sk);
|
break;
|
break;
|
|
|
case BT_CONNECTED:
|
case BT_CONNECTED:
|
case BT_CONFIG:
|
case BT_CONFIG:
|
case BT_CONNECT:
|
case BT_CONNECT:
|
case BT_DISCONN:
|
case BT_DISCONN:
|
sco_chan_del(sk, ECONNRESET);
|
sco_chan_del(sk, ECONNRESET);
|
break;
|
break;
|
|
|
default:
|
default:
|
sk->zapped = 1;
|
sk->zapped = 1;
|
break;
|
break;
|
};
|
};
|
|
|
release_sock(sk);
|
release_sock(sk);
|
}
|
}
|
|
|
static void sco_sock_init(struct sock *sk, struct sock *parent)
|
static void sco_sock_init(struct sock *sk, struct sock *parent)
|
{
|
{
|
BT_DBG("sk %p", sk);
|
BT_DBG("sk %p", sk);
|
|
|
if (parent)
|
if (parent)
|
sk->type = parent->type;
|
sk->type = parent->type;
|
}
|
}
|
|
|
static struct sock *sco_sock_alloc(struct socket *sock, int proto, int prio)
|
static struct sock *sco_sock_alloc(struct socket *sock, int proto, int prio)
|
{
|
{
|
struct sock *sk;
|
struct sock *sk;
|
|
|
if (!(sk = sk_alloc(PF_BLUETOOTH, prio, 1)))
|
if (!(sk = sk_alloc(PF_BLUETOOTH, prio, 1)))
|
return NULL;
|
return NULL;
|
|
|
bluez_sock_init(sock, sk);
|
bluez_sock_init(sock, sk);
|
|
|
sk->zapped = 0;
|
sk->zapped = 0;
|
|
|
sk->destruct = sco_sock_destruct;
|
sk->destruct = sco_sock_destruct;
|
sk->sndtimeo = SCO_CONN_TIMEOUT;
|
sk->sndtimeo = SCO_CONN_TIMEOUT;
|
|
|
sk->protocol = proto;
|
sk->protocol = proto;
|
sk->state = BT_OPEN;
|
sk->state = BT_OPEN;
|
|
|
sco_sock_init_timer(sk);
|
sco_sock_init_timer(sk);
|
|
|
bluez_sock_link(&sco_sk_list, sk);
|
bluez_sock_link(&sco_sk_list, sk);
|
|
|
MOD_INC_USE_COUNT;
|
MOD_INC_USE_COUNT;
|
return sk;
|
return sk;
|
}
|
}
|
|
|
static int sco_sock_create(struct socket *sock, int protocol)
|
static int sco_sock_create(struct socket *sock, int protocol)
|
{
|
{
|
struct sock *sk;
|
struct sock *sk;
|
|
|
BT_DBG("sock %p", sock);
|
BT_DBG("sock %p", sock);
|
|
|
sock->state = SS_UNCONNECTED;
|
sock->state = SS_UNCONNECTED;
|
|
|
if (sock->type != SOCK_SEQPACKET)
|
if (sock->type != SOCK_SEQPACKET)
|
return -ESOCKTNOSUPPORT;
|
return -ESOCKTNOSUPPORT;
|
|
|
sock->ops = &sco_sock_ops;
|
sock->ops = &sco_sock_ops;
|
|
|
if (!(sk = sco_sock_alloc(sock, protocol, GFP_KERNEL)))
|
if (!(sk = sco_sock_alloc(sock, protocol, GFP_KERNEL)))
|
return -ENOMEM;
|
return -ENOMEM;
|
|
|
sco_sock_init(sk, NULL);
|
sco_sock_init(sk, NULL);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
|
static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
|
{
|
{
|
struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
|
struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
bdaddr_t *src = &sa->sco_bdaddr;
|
bdaddr_t *src = &sa->sco_bdaddr;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("sk %p %s", sk, batostr(&sa->sco_bdaddr));
|
BT_DBG("sk %p %s", sk, batostr(&sa->sco_bdaddr));
|
|
|
if (!addr || addr->sa_family != AF_BLUETOOTH)
|
if (!addr || addr->sa_family != AF_BLUETOOTH)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (sk->state != BT_OPEN) {
|
if (sk->state != BT_OPEN) {
|
err = -EBADFD;
|
err = -EBADFD;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
write_lock_bh(&sco_sk_list.lock);
|
write_lock_bh(&sco_sk_list.lock);
|
|
|
if (bacmp(src, BDADDR_ANY) && __sco_get_sock_by_addr(src)) {
|
if (bacmp(src, BDADDR_ANY) && __sco_get_sock_by_addr(src)) {
|
err = -EADDRINUSE;
|
err = -EADDRINUSE;
|
} else {
|
} else {
|
/* Save source address */
|
/* Save source address */
|
bacpy(&bluez_pi(sk)->src, &sa->sco_bdaddr);
|
bacpy(&bluez_pi(sk)->src, &sa->sco_bdaddr);
|
sk->state = BT_BOUND;
|
sk->state = BT_BOUND;
|
}
|
}
|
|
|
write_unlock_bh(&sco_sk_list.lock);
|
write_unlock_bh(&sco_sk_list.lock);
|
|
|
done:
|
done:
|
release_sock(sk);
|
release_sock(sk);
|
|
|
return err;
|
return err;
|
}
|
}
|
|
|
static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
|
static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
|
{
|
{
|
struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
|
struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int err = 0;
|
int err = 0;
|
|
|
|
|
BT_DBG("sk %p", sk);
|
BT_DBG("sk %p", sk);
|
|
|
if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_sco))
|
if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_sco))
|
return -EINVAL;
|
return -EINVAL;
|
|
|
if (sk->state != BT_OPEN && sk->state != BT_BOUND)
|
if (sk->state != BT_OPEN && sk->state != BT_BOUND)
|
return -EBADFD;
|
return -EBADFD;
|
|
|
if (sk->type != SOCK_SEQPACKET)
|
if (sk->type != SOCK_SEQPACKET)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
/* Set destination address and psm */
|
/* Set destination address and psm */
|
bacpy(&bluez_pi(sk)->dst, &sa->sco_bdaddr);
|
bacpy(&bluez_pi(sk)->dst, &sa->sco_bdaddr);
|
|
|
if ((err = sco_connect(sk)))
|
if ((err = sco_connect(sk)))
|
goto done;
|
goto done;
|
|
|
err = bluez_sock_wait_state(sk, BT_CONNECTED,
|
err = bluez_sock_wait_state(sk, BT_CONNECTED,
|
sock_sndtimeo(sk, flags & O_NONBLOCK));
|
sock_sndtimeo(sk, flags & O_NONBLOCK));
|
|
|
done:
|
done:
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
int sco_sock_listen(struct socket *sock, int backlog)
|
int sco_sock_listen(struct socket *sock, int backlog)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("sk %p backlog %d", sk, backlog);
|
BT_DBG("sk %p backlog %d", sk, backlog);
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (sk->state != BT_BOUND || sock->type != SOCK_SEQPACKET) {
|
if (sk->state != BT_BOUND || sock->type != SOCK_SEQPACKET) {
|
err = -EBADFD;
|
err = -EBADFD;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
sk->max_ack_backlog = backlog;
|
sk->max_ack_backlog = backlog;
|
sk->ack_backlog = 0;
|
sk->ack_backlog = 0;
|
sk->state = BT_LISTEN;
|
sk->state = BT_LISTEN;
|
|
|
done:
|
done:
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags)
|
int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags)
|
{
|
{
|
DECLARE_WAITQUEUE(wait, current);
|
DECLARE_WAITQUEUE(wait, current);
|
struct sock *sk = sock->sk, *ch;
|
struct sock *sk = sock->sk, *ch;
|
long timeo;
|
long timeo;
|
int err = 0;
|
int err = 0;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (sk->state != BT_LISTEN) {
|
if (sk->state != BT_LISTEN) {
|
err = -EBADFD;
|
err = -EBADFD;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
|
timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
|
|
|
BT_DBG("sk %p timeo %ld", sk, timeo);
|
BT_DBG("sk %p timeo %ld", sk, timeo);
|
|
|
/* Wait for an incoming connection. (wake-one). */
|
/* Wait for an incoming connection. (wake-one). */
|
add_wait_queue_exclusive(sk->sleep, &wait);
|
add_wait_queue_exclusive(sk->sleep, &wait);
|
while (!(ch = bluez_accept_dequeue(sk, newsock))) {
|
while (!(ch = bluez_accept_dequeue(sk, newsock))) {
|
set_current_state(TASK_INTERRUPTIBLE);
|
set_current_state(TASK_INTERRUPTIBLE);
|
if (!timeo) {
|
if (!timeo) {
|
err = -EAGAIN;
|
err = -EAGAIN;
|
break;
|
break;
|
}
|
}
|
|
|
release_sock(sk);
|
release_sock(sk);
|
timeo = schedule_timeout(timeo);
|
timeo = schedule_timeout(timeo);
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (sk->state != BT_LISTEN) {
|
if (sk->state != BT_LISTEN) {
|
err = -EBADFD;
|
err = -EBADFD;
|
break;
|
break;
|
}
|
}
|
|
|
if (signal_pending(current)) {
|
if (signal_pending(current)) {
|
err = sock_intr_errno(timeo);
|
err = sock_intr_errno(timeo);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
set_current_state(TASK_RUNNING);
|
set_current_state(TASK_RUNNING);
|
remove_wait_queue(sk->sleep, &wait);
|
remove_wait_queue(sk->sleep, &wait);
|
|
|
if (err)
|
if (err)
|
goto done;
|
goto done;
|
|
|
newsock->state = SS_CONNECTED;
|
newsock->state = SS_CONNECTED;
|
|
|
BT_DBG("new socket %p", ch);
|
BT_DBG("new socket %p", ch);
|
|
|
done:
|
done:
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
|
static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
|
{
|
{
|
struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
|
struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
|
|
BT_DBG("sock %p, sk %p", sock, sk);
|
BT_DBG("sock %p, sk %p", sock, sk);
|
|
|
addr->sa_family = AF_BLUETOOTH;
|
addr->sa_family = AF_BLUETOOTH;
|
*len = sizeof(struct sockaddr_sco);
|
*len = sizeof(struct sockaddr_sco);
|
|
|
if (peer)
|
if (peer)
|
bacpy(&sa->sco_bdaddr, &bluez_pi(sk)->dst);
|
bacpy(&sa->sco_bdaddr, &bluez_pi(sk)->dst);
|
else
|
else
|
bacpy(&sa->sco_bdaddr, &bluez_pi(sk)->src);
|
bacpy(&sa->sco_bdaddr, &bluez_pi(sk)->src);
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg, int len, struct scm_cookie *scm)
|
static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg, int len, struct scm_cookie *scm)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("sock %p, sk %p", sock, sk);
|
BT_DBG("sock %p, sk %p", sock, sk);
|
|
|
if (sk->err)
|
if (sk->err)
|
return sock_error(sk);
|
return sock_error(sk);
|
|
|
if (msg->msg_flags & MSG_OOB)
|
if (msg->msg_flags & MSG_OOB)
|
return -EOPNOTSUPP;
|
return -EOPNOTSUPP;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (sk->state == BT_CONNECTED)
|
if (sk->state == BT_CONNECTED)
|
err = sco_send_frame(sk, msg, len);
|
err = sco_send_frame(sk, msg, len);
|
else
|
else
|
err = -ENOTCONN;
|
err = -ENOTCONN;
|
|
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
int sco_sock_setsockopt(struct socket *sock, int level, int optname, char *optval, int optlen)
|
int sco_sock_setsockopt(struct socket *sock, int level, int optname, char *optval, int optlen)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("sk %p", sk);
|
BT_DBG("sk %p", sk);
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
switch (optname) {
|
switch (optname) {
|
default:
|
default:
|
err = -ENOPROTOOPT;
|
err = -ENOPROTOOPT;
|
break;
|
break;
|
};
|
};
|
|
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
int sco_sock_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen)
|
int sco_sock_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
struct sco_options opts;
|
struct sco_options opts;
|
struct sco_conninfo cinfo;
|
struct sco_conninfo cinfo;
|
int len, err = 0;
|
int len, err = 0;
|
|
|
BT_DBG("sk %p", sk);
|
BT_DBG("sk %p", sk);
|
|
|
if (get_user(len, optlen))
|
if (get_user(len, optlen))
|
return -EFAULT;
|
return -EFAULT;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
switch (optname) {
|
switch (optname) {
|
case SCO_OPTIONS:
|
case SCO_OPTIONS:
|
if (sk->state != BT_CONNECTED) {
|
if (sk->state != BT_CONNECTED) {
|
err = -ENOTCONN;
|
err = -ENOTCONN;
|
break;
|
break;
|
}
|
}
|
|
|
opts.mtu = sco_pi(sk)->conn->mtu;
|
opts.mtu = sco_pi(sk)->conn->mtu;
|
|
|
BT_DBG("mtu %d", opts.mtu);
|
BT_DBG("mtu %d", opts.mtu);
|
|
|
len = MIN(len, sizeof(opts));
|
len = MIN(len, sizeof(opts));
|
if (copy_to_user(optval, (char *)&opts, len))
|
if (copy_to_user(optval, (char *)&opts, len))
|
err = -EFAULT;
|
err = -EFAULT;
|
|
|
break;
|
break;
|
|
|
case SCO_CONNINFO:
|
case SCO_CONNINFO:
|
if (sk->state != BT_CONNECTED) {
|
if (sk->state != BT_CONNECTED) {
|
err = -ENOTCONN;
|
err = -ENOTCONN;
|
break;
|
break;
|
}
|
}
|
|
|
cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle;
|
cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle;
|
|
|
len = MIN(len, sizeof(cinfo));
|
len = MIN(len, sizeof(cinfo));
|
if (copy_to_user(optval, (char *)&cinfo, len))
|
if (copy_to_user(optval, (char *)&cinfo, len))
|
err = -EFAULT;
|
err = -EFAULT;
|
|
|
break;
|
break;
|
|
|
default:
|
default:
|
err = -ENOPROTOOPT;
|
err = -ENOPROTOOPT;
|
break;
|
break;
|
};
|
};
|
|
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
static int sco_sock_release(struct socket *sock)
|
static int sco_sock_release(struct socket *sock)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("sock %p, sk %p", sock, sk);
|
BT_DBG("sock %p, sk %p", sock, sk);
|
|
|
if (!sk)
|
if (!sk)
|
return 0;
|
return 0;
|
|
|
sco_sock_close(sk);
|
sco_sock_close(sk);
|
if (sk->linger) {
|
if (sk->linger) {
|
lock_sock(sk);
|
lock_sock(sk);
|
err = bluez_sock_wait_state(sk, BT_CLOSED, sk->lingertime);
|
err = bluez_sock_wait_state(sk, BT_CLOSED, sk->lingertime);
|
release_sock(sk);
|
release_sock(sk);
|
}
|
}
|
|
|
sock_orphan(sk);
|
sock_orphan(sk);
|
sco_sock_kill(sk);
|
sco_sock_kill(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
|
static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
|
{
|
{
|
BT_DBG("conn %p", conn);
|
BT_DBG("conn %p", conn);
|
|
|
sco_pi(sk)->conn = conn;
|
sco_pi(sk)->conn = conn;
|
conn->sk = sk;
|
conn->sk = sk;
|
|
|
if (parent)
|
if (parent)
|
bluez_accept_enqueue(parent, sk);
|
bluez_accept_enqueue(parent, sk);
|
}
|
}
|
|
|
static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
|
static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
|
{
|
{
|
int err = 0;
|
int err = 0;
|
|
|
sco_conn_lock(conn);
|
sco_conn_lock(conn);
|
if (conn->sk) {
|
if (conn->sk) {
|
err = -EBUSY;
|
err = -EBUSY;
|
} else {
|
} else {
|
__sco_chan_add(conn, sk, parent);
|
__sco_chan_add(conn, sk, parent);
|
}
|
}
|
sco_conn_unlock(conn);
|
sco_conn_unlock(conn);
|
return err;
|
return err;
|
}
|
}
|
|
|
static inline struct sock * sco_chan_get(struct sco_conn *conn)
|
static inline struct sock * sco_chan_get(struct sco_conn *conn)
|
{
|
{
|
struct sock *sk = NULL;
|
struct sock *sk = NULL;
|
sco_conn_lock(conn);
|
sco_conn_lock(conn);
|
sk = conn->sk;
|
sk = conn->sk;
|
sco_conn_unlock(conn);
|
sco_conn_unlock(conn);
|
return sk;
|
return sk;
|
}
|
}
|
|
|
/* Delete channel.
|
/* Delete channel.
|
* Must be called on the locked socket. */
|
* Must be called on the locked socket. */
|
static void sco_chan_del(struct sock *sk, int err)
|
static void sco_chan_del(struct sock *sk, int err)
|
{
|
{
|
struct sco_conn *conn;
|
struct sco_conn *conn;
|
|
|
conn = sco_pi(sk)->conn;
|
conn = sco_pi(sk)->conn;
|
|
|
BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
|
BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
|
|
|
if (conn) {
|
if (conn) {
|
sco_conn_lock(conn);
|
sco_conn_lock(conn);
|
conn->sk = NULL;
|
conn->sk = NULL;
|
sco_pi(sk)->conn = NULL;
|
sco_pi(sk)->conn = NULL;
|
sco_conn_unlock(conn);
|
sco_conn_unlock(conn);
|
hci_conn_put(conn->hcon);
|
hci_conn_put(conn->hcon);
|
}
|
}
|
|
|
sk->state = BT_CLOSED;
|
sk->state = BT_CLOSED;
|
sk->err = err;
|
sk->err = err;
|
sk->state_change(sk);
|
sk->state_change(sk);
|
|
|
sk->zapped = 1;
|
sk->zapped = 1;
|
}
|
}
|
|
|
static void sco_conn_ready(struct sco_conn *conn)
|
static void sco_conn_ready(struct sco_conn *conn)
|
{
|
{
|
struct sock *parent, *sk;
|
struct sock *parent, *sk;
|
|
|
BT_DBG("conn %p", conn);
|
BT_DBG("conn %p", conn);
|
|
|
sco_conn_lock(conn);
|
sco_conn_lock(conn);
|
|
|
if ((sk = conn->sk)) {
|
if ((sk = conn->sk)) {
|
sco_sock_clear_timer(sk);
|
sco_sock_clear_timer(sk);
|
bh_lock_sock(sk);
|
bh_lock_sock(sk);
|
sk->state = BT_CONNECTED;
|
sk->state = BT_CONNECTED;
|
sk->state_change(sk);
|
sk->state_change(sk);
|
bh_unlock_sock(sk);
|
bh_unlock_sock(sk);
|
} else {
|
} else {
|
parent = sco_get_sock_listen(conn->src);
|
parent = sco_get_sock_listen(conn->src);
|
if (!parent)
|
if (!parent)
|
goto done;
|
goto done;
|
|
|
bh_lock_sock(parent);
|
bh_lock_sock(parent);
|
|
|
sk = sco_sock_alloc(NULL, BTPROTO_SCO, GFP_ATOMIC);
|
sk = sco_sock_alloc(NULL, BTPROTO_SCO, GFP_ATOMIC);
|
if (!sk) {
|
if (!sk) {
|
bh_unlock_sock(parent);
|
bh_unlock_sock(parent);
|
goto done;
|
goto done;
|
}
|
}
|
|
|
sco_sock_init(sk, parent);
|
sco_sock_init(sk, parent);
|
|
|
bacpy(&bluez_pi(sk)->src, conn->src);
|
bacpy(&bluez_pi(sk)->src, conn->src);
|
bacpy(&bluez_pi(sk)->dst, conn->dst);
|
bacpy(&bluez_pi(sk)->dst, conn->dst);
|
|
|
hci_conn_hold(conn->hcon);
|
hci_conn_hold(conn->hcon);
|
__sco_chan_add(conn, sk, parent);
|
__sco_chan_add(conn, sk, parent);
|
|
|
sk->state = BT_CONNECTED;
|
sk->state = BT_CONNECTED;
|
|
|
/* Wake up parent */
|
/* Wake up parent */
|
parent->data_ready(parent, 1);
|
parent->data_ready(parent, 1);
|
|
|
bh_unlock_sock(parent);
|
bh_unlock_sock(parent);
|
}
|
}
|
|
|
done:
|
done:
|
sco_conn_unlock(conn);
|
sco_conn_unlock(conn);
|
}
|
}
|
|
|
/* ----- SCO interface with lower layer (HCI) ----- */
|
/* ----- SCO interface with lower layer (HCI) ----- */
|
int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
|
int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
|
{
|
{
|
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
|
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
|
|
|
/* Always accept connection */
|
/* Always accept connection */
|
return HCI_LM_ACCEPT;
|
return HCI_LM_ACCEPT;
|
}
|
}
|
|
|
int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
|
int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
|
{
|
{
|
BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
|
BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
|
|
|
if (hcon->type != SCO_LINK)
|
if (hcon->type != SCO_LINK)
|
return 0;
|
return 0;
|
|
|
if (!status) {
|
if (!status) {
|
struct sco_conn *conn;
|
struct sco_conn *conn;
|
|
|
conn = sco_conn_add(hcon, status);
|
conn = sco_conn_add(hcon, status);
|
if (conn)
|
if (conn)
|
sco_conn_ready(conn);
|
sco_conn_ready(conn);
|
} else
|
} else
|
sco_conn_del(hcon, bterr(status));
|
sco_conn_del(hcon, bterr(status));
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int sco_disconn_ind(struct hci_conn *hcon, __u8 reason)
|
int sco_disconn_ind(struct hci_conn *hcon, __u8 reason)
|
{
|
{
|
BT_DBG("hcon %p reason %d", hcon, reason);
|
BT_DBG("hcon %p reason %d", hcon, reason);
|
|
|
if (hcon->type != SCO_LINK)
|
if (hcon->type != SCO_LINK)
|
return 0;
|
return 0;
|
|
|
sco_conn_del(hcon, bterr(reason));
|
sco_conn_del(hcon, bterr(reason));
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
|
int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
|
{
|
{
|
struct sco_conn *conn = hcon->sco_data;
|
struct sco_conn *conn = hcon->sco_data;
|
|
|
if (!conn)
|
if (!conn)
|
goto drop;
|
goto drop;
|
|
|
BT_DBG("conn %p len %d", conn, skb->len);
|
BT_DBG("conn %p len %d", conn, skb->len);
|
|
|
if (skb->len) {
|
if (skb->len) {
|
sco_recv_frame(conn, skb);
|
sco_recv_frame(conn, skb);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
drop:
|
drop:
|
kfree_skb(skb);
|
kfree_skb(skb);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* ----- Proc fs support ------ */
|
/* ----- Proc fs support ------ */
|
static int sco_sock_dump(char *buf, struct bluez_sock_list *list)
|
static int sco_sock_dump(char *buf, struct bluez_sock_list *list)
|
{
|
{
|
struct sco_pinfo *pi;
|
struct sco_pinfo *pi;
|
struct sock *sk;
|
struct sock *sk;
|
char *ptr = buf;
|
char *ptr = buf;
|
|
|
write_lock_bh(&list->lock);
|
write_lock_bh(&list->lock);
|
|
|
for (sk = list->head; sk; sk = sk->next) {
|
for (sk = list->head; sk; sk = sk->next) {
|
pi = sco_pi(sk);
|
pi = sco_pi(sk);
|
ptr += sprintf(ptr, "%s %s %d\n",
|
ptr += sprintf(ptr, "%s %s %d\n",
|
batostr(&bluez_pi(sk)->src), batostr(&bluez_pi(sk)->dst),
|
batostr(&bluez_pi(sk)->src), batostr(&bluez_pi(sk)->dst),
|
sk->state);
|
sk->state);
|
}
|
}
|
|
|
write_unlock_bh(&list->lock);
|
write_unlock_bh(&list->lock);
|
|
|
ptr += sprintf(ptr, "\n");
|
ptr += sprintf(ptr, "\n");
|
|
|
return ptr - buf;
|
return ptr - buf;
|
}
|
}
|
|
|
static int sco_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *priv)
|
static int sco_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *priv)
|
{
|
{
|
char *ptr = buf;
|
char *ptr = buf;
|
int len;
|
int len;
|
|
|
BT_DBG("count %d, offset %ld", count, offset);
|
BT_DBG("count %d, offset %ld", count, offset);
|
|
|
ptr += sco_sock_dump(ptr, &sco_sk_list);
|
ptr += sco_sock_dump(ptr, &sco_sk_list);
|
len = ptr - buf;
|
len = ptr - buf;
|
|
|
if (len <= count + offset)
|
if (len <= count + offset)
|
*eof = 1;
|
*eof = 1;
|
|
|
*start = buf + offset;
|
*start = buf + offset;
|
len -= offset;
|
len -= offset;
|
|
|
if (len > count)
|
if (len > count)
|
len = count;
|
len = count;
|
if (len < 0)
|
if (len < 0)
|
len = 0;
|
len = 0;
|
|
|
return len;
|
return len;
|
}
|
}
|
|
|
static struct proto_ops sco_sock_ops = {
|
static struct proto_ops sco_sock_ops = {
|
family: PF_BLUETOOTH,
|
family: PF_BLUETOOTH,
|
release: sco_sock_release,
|
release: sco_sock_release,
|
bind: sco_sock_bind,
|
bind: sco_sock_bind,
|
connect: sco_sock_connect,
|
connect: sco_sock_connect,
|
listen: sco_sock_listen,
|
listen: sco_sock_listen,
|
accept: sco_sock_accept,
|
accept: sco_sock_accept,
|
getname: sco_sock_getname,
|
getname: sco_sock_getname,
|
sendmsg: sco_sock_sendmsg,
|
sendmsg: sco_sock_sendmsg,
|
recvmsg: bluez_sock_recvmsg,
|
recvmsg: bluez_sock_recvmsg,
|
poll: bluez_sock_poll,
|
poll: bluez_sock_poll,
|
socketpair: sock_no_socketpair,
|
socketpair: sock_no_socketpair,
|
ioctl: sock_no_ioctl,
|
ioctl: sock_no_ioctl,
|
shutdown: sock_no_shutdown,
|
shutdown: sock_no_shutdown,
|
setsockopt: sco_sock_setsockopt,
|
setsockopt: sco_sock_setsockopt,
|
getsockopt: sco_sock_getsockopt,
|
getsockopt: sco_sock_getsockopt,
|
mmap: sock_no_mmap
|
mmap: sock_no_mmap
|
};
|
};
|
|
|
static struct net_proto_family sco_sock_family_ops = {
|
static struct net_proto_family sco_sock_family_ops = {
|
family: PF_BLUETOOTH,
|
family: PF_BLUETOOTH,
|
create: sco_sock_create
|
create: sco_sock_create
|
};
|
};
|
|
|
static struct hci_proto sco_hci_proto = {
|
static struct hci_proto sco_hci_proto = {
|
name: "SCO",
|
name: "SCO",
|
id: HCI_PROTO_SCO,
|
id: HCI_PROTO_SCO,
|
connect_ind: sco_connect_ind,
|
connect_ind: sco_connect_ind,
|
connect_cfm: sco_connect_cfm,
|
connect_cfm: sco_connect_cfm,
|
disconn_ind: sco_disconn_ind,
|
disconn_ind: sco_disconn_ind,
|
recv_scodata: sco_recv_scodata,
|
recv_scodata: sco_recv_scodata,
|
};
|
};
|
|
|
int __init sco_init(void)
|
int __init sco_init(void)
|
{
|
{
|
int err;
|
int err;
|
|
|
if ((err = bluez_sock_register(BTPROTO_SCO, &sco_sock_family_ops))) {
|
if ((err = bluez_sock_register(BTPROTO_SCO, &sco_sock_family_ops))) {
|
BT_ERR("Can't register SCO socket layer");
|
BT_ERR("Can't register SCO socket layer");
|
return err;
|
return err;
|
}
|
}
|
|
|
if ((err = hci_register_proto(&sco_hci_proto))) {
|
if ((err = hci_register_proto(&sco_hci_proto))) {
|
BT_ERR("Can't register SCO protocol");
|
BT_ERR("Can't register SCO protocol");
|
return err;
|
return err;
|
}
|
}
|
|
|
create_proc_read_entry("bluetooth/sco", 0, 0, sco_read_proc, NULL);
|
create_proc_read_entry("bluetooth/sco", 0, 0, sco_read_proc, NULL);
|
|
|
BT_INFO("BlueZ SCO ver %s Copyright (C) 2000,2001 Qualcomm Inc", VERSION);
|
BT_INFO("BlueZ SCO ver %s Copyright (C) 2000,2001 Qualcomm Inc", VERSION);
|
BT_INFO("Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>");
|
BT_INFO("Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>");
|
return 0;
|
return 0;
|
}
|
}
|
|
|
void sco_cleanup(void)
|
void sco_cleanup(void)
|
{
|
{
|
int err;
|
int err;
|
|
|
remove_proc_entry("bluetooth/sco", NULL);
|
remove_proc_entry("bluetooth/sco", NULL);
|
|
|
/* Unregister socket, protocol and notifier */
|
/* Unregister socket, protocol and notifier */
|
if ((err = bluez_sock_unregister(BTPROTO_SCO)))
|
if ((err = bluez_sock_unregister(BTPROTO_SCO)))
|
BT_ERR("Can't unregister SCO socket layer %d", err);
|
BT_ERR("Can't unregister SCO socket layer %d", err);
|
|
|
if ((err = hci_unregister_proto(&sco_hci_proto)))
|
if ((err = hci_unregister_proto(&sco_hci_proto)))
|
BT_ERR("Can't unregister SCO protocol %d", err);
|
BT_ERR("Can't unregister SCO protocol %d", err);
|
}
|
}
|
|
|
module_init(sco_init);
|
module_init(sco_init);
|
module_exit(sco_cleanup);
|
module_exit(sco_cleanup);
|
|
|
MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>");
|
MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>");
|
MODULE_DESCRIPTION("BlueZ SCO ver " VERSION);
|
MODULE_DESCRIPTION("BlueZ SCO ver " VERSION);
|
MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
|
|
|
