#include <linux/socket.h>
#include <linux/skbuff.h>
#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
#include <linux/list.h>
#include <net/sock.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/sco.h>
-#ifndef CONFIG_BT_SCO_DEBUG
-#undef BT_DBG
-#define BT_DBG(D...)
-#endif
+#define VERSION "0.6"
-#define VERSION "0.5"
+static int disable_esco = 0;
static const struct proto_ops sco_sock_ops;
static struct bt_sock_list sco_sk_list = {
- .lock = RW_LOCK_UNLOCKED
+ .lock = __RW_LOCK_UNLOCKED(sco_sk_list.lock)
};
static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent);
sk_stop_timer(sk, &sk->sk_timer);
}
-static void sco_sock_init_timer(struct sock *sk)
-{
- init_timer(&sk->sk_timer);
- sk->sk_timer.function = sco_sock_timeout;
- sk->sk_timer.data = (unsigned long)sk;
-}
-
/* ---- SCO connections ---- */
static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
{
err = -ENOMEM;
- type = lmp_esco_capable(hdev) ? ESCO_LINK : SCO_LINK;
+ if (lmp_esco_capable(hdev) && !disable_esco)
+ type = ESCO_LINK;
+ else
+ type = SCO_LINK;
- hcon = hci_connect(hdev, type, dst);
+ hcon = hci_connect(hdev, type, dst, BT_SECURITY_LOW, HCI_AT_NO_BONDING);
if (!hcon)
goto done;
sock_put(sk);
}
-/* Close 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;
-
- sco_sock_clear_timer(sk);
-
- lock_sock(sk);
-
- conn = sco_pi(sk)->conn;
-
- BT_DBG("sk %p state %d conn %p socket %p", sk, sk->sk_state, conn, sk->sk_socket);
+ BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
switch (sk->sk_state) {
case BT_LISTEN:
sock_set_flag(sk, SOCK_ZAPPED);
break;
}
+}
+/* Must be called on unlocked socket. */
+static void sco_sock_close(struct sock *sk)
+{
+ sco_sock_clear_timer(sk);
+ lock_sock(sk);
+ __sco_sock_close(sk);
release_sock(sk);
-
sco_sock_kill(sk);
}
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
- sco_sock_init_timer(sk);
+ setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk);
bt_sock_link(&sco_sk_list, sk);
return sk;
}
-static int sco_sock_create(struct net *net, struct socket *sock, int protocol)
+static int sco_sock_create(struct net *net, struct socket *sock, int protocol,
+ int kern)
{
struct sock *sk;
BT_DBG("sk %p", sk);
- if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_sco))
+ if (alen < sizeof(struct sockaddr_sco) ||
+ addr->sa_family != AF_BLUETOOTH)
return -EINVAL;
if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)
return err;
}
-static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
+static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
int err = 0;
return err;
}
-static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
struct sco_options opts;
return err;
}
+static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+ struct sock *sk = sock->sk;
+ int len, err = 0;
+
+ BT_DBG("sk %p", sk);
+
+ if (level == SOL_SCO)
+ return sco_sock_getsockopt_old(sock, optname, optval, optlen);
+
+ if (get_user(len, optlen))
+ return -EFAULT;
+
+ lock_sock(sk);
+
+ switch (optname) {
+ default:
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ release_sock(sk);
+ return err;
+}
+
+static int sco_sock_shutdown(struct socket *sock, int how)
+{
+ struct sock *sk = sock->sk;
+ int err = 0;
+
+ BT_DBG("sock %p, sk %p", sock, sk);
+
+ if (!sk)
+ return 0;
+
+ lock_sock(sk);
+ if (!sk->sk_shutdown) {
+ sk->sk_shutdown = SHUTDOWN_MASK;
+ sco_sock_clear_timer(sk);
+ __sco_sock_close(sk);
+
+ if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
+ err = bt_sock_wait_state(sk, BT_CLOSED,
+ sk->sk_lingertime);
+ }
+ release_sock(sk);
+ return err;
+}
+
static int sco_sock_release(struct socket *sock)
{
struct sock *sk = sock->sk;
bh_lock_sock(parent);
- sk = sco_sock_alloc(parent->sk_net, NULL, BTPROTO_SCO, GFP_ATOMIC);
+ sk = sco_sock_alloc(sock_net(parent), NULL, BTPROTO_SCO, GFP_ATOMIC);
if (!sk) {
bh_unlock_sock(parent);
goto done;
/* ----- SCO interface with lower layer (HCI) ----- */
static int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
{
+ register struct sock *sk;
+ struct hlist_node *node;
+ int lm = 0;
+
+ if (type != SCO_LINK && type != ESCO_LINK)
+ return 0;
+
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
- /* Always accept connection */
- return HCI_LM_ACCEPT;
+ /* Find listening sockets */
+ read_lock(&sco_sk_list.lock);
+ sk_for_each(sk, node, &sco_sk_list.head) {
+ if (sk->sk_state != BT_LISTEN)
+ continue;
+
+ if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
+ !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+ lm |= HCI_LM_ACCEPT;
+ break;
+ }
+ }
+ read_unlock(&sco_sk_list.lock);
+
+ return lm;
}
static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
return 0;
}
-static int sco_disconn_ind(struct hci_conn *hcon, __u8 reason)
+static int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
{
BT_DBG("hcon %p reason %d", hcon, reason);
return 0;
}
-static ssize_t sco_sysfs_show(struct class *dev, char *buf)
+static int sco_debugfs_show(struct seq_file *f, void *p)
{
struct sock *sk;
struct hlist_node *node;
- char *str = buf;
read_lock_bh(&sco_sk_list.lock);
sk_for_each(sk, node, &sco_sk_list.head) {
- str += sprintf(str, "%s %s %d\n",
- batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
- sk->sk_state);
+ seq_printf(f, "%s %s %d\n", batostr(&bt_sk(sk)->src),
+ batostr(&bt_sk(sk)->dst), sk->sk_state);
}
read_unlock_bh(&sco_sk_list.lock);
- return (str - buf);
+ return 0;
+}
+
+static int sco_debugfs_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sco_debugfs_show, inode->i_private);
}
-static CLASS_ATTR(sco, S_IRUGO, sco_sysfs_show, NULL);
+static const struct file_operations sco_debugfs_fops = {
+ .open = sco_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct dentry *sco_debugfs;
static const struct proto_ops sco_sock_ops = {
.family = PF_BLUETOOTH,
.sendmsg = sco_sock_sendmsg,
.recvmsg = bt_sock_recvmsg,
.poll = bt_sock_poll,
- .ioctl = sock_no_ioctl,
+ .ioctl = bt_sock_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
- .shutdown = sock_no_shutdown,
+ .shutdown = sco_sock_shutdown,
.setsockopt = sco_sock_setsockopt,
.getsockopt = sco_sock_getsockopt
};
-static struct net_proto_family sco_sock_family_ops = {
+static const struct net_proto_family sco_sock_family_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.create = sco_sock_create,
.id = HCI_PROTO_SCO,
.connect_ind = sco_connect_ind,
.connect_cfm = sco_connect_cfm,
- .disconn_ind = sco_disconn_ind,
+ .disconn_cfm = sco_disconn_cfm,
.recv_scodata = sco_recv_scodata
};
goto error;
}
- if (class_create_file(bt_class, &class_attr_sco) < 0)
- BT_ERR("Failed to create SCO info file");
+ if (bt_debugfs) {
+ sco_debugfs = debugfs_create_file("sco", 0444,
+ bt_debugfs, NULL, &sco_debugfs_fops);
+ if (!sco_debugfs)
+ BT_ERR("Failed to create SCO debug file");
+ }
BT_INFO("SCO (Voice Link) ver %s", VERSION);
BT_INFO("SCO socket layer initialized");
static void __exit sco_exit(void)
{
- class_remove_file(bt_class, &class_attr_sco);
+ debugfs_remove(sco_debugfs);
if (bt_sock_unregister(BTPROTO_SCO) < 0)
BT_ERR("SCO socket unregistration failed");
module_init(sco_init);
module_exit(sco_exit);
-MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>");
+module_param(disable_esco, bool, 0644);
+MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth SCO ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff