-/*
+/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (C) 2000-2001 Qualcomm Incorporated
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED.
*/
#include <linux/init.h>
#include <linux/poll.h>
#include <net/sock.h>
-
-#if defined(CONFIG_KMOD)
+#include <asm/ioctls.h>
#include <linux/kmod.h>
-#endif
#include <net/bluetooth/bluetooth.h>
-#ifndef CONFIG_BT_SOCK_DEBUG
-#undef BT_DBG
-#define BT_DBG(D...)
-#endif
-
-#define VERSION "2.8"
+#define VERSION "2.14"
/* Bluetooth sockets */
#define BT_MAX_PROTO 8
static struct net_proto_family *bt_proto[BT_MAX_PROTO];
+static DEFINE_RWLOCK(bt_proto_lock);
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static struct lock_class_key bt_lock_key[BT_MAX_PROTO];
+static const char *bt_key_strings[BT_MAX_PROTO] = {
+ "sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_HCI",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_SCO",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_BNEP",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_CMTP",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_HIDP",
+ "sk_lock-AF_BLUETOOTH-BTPROTO_AVDTP",
+};
+
+static struct lock_class_key bt_slock_key[BT_MAX_PROTO];
+static const char *bt_slock_key_strings[BT_MAX_PROTO] = {
+ "slock-AF_BLUETOOTH-BTPROTO_L2CAP",
+ "slock-AF_BLUETOOTH-BTPROTO_HCI",
+ "slock-AF_BLUETOOTH-BTPROTO_SCO",
+ "slock-AF_BLUETOOTH-BTPROTO_RFCOMM",
+ "slock-AF_BLUETOOTH-BTPROTO_BNEP",
+ "slock-AF_BLUETOOTH-BTPROTO_CMTP",
+ "slock-AF_BLUETOOTH-BTPROTO_HIDP",
+ "slock-AF_BLUETOOTH-BTPROTO_AVDTP",
+};
+
+static inline void bt_sock_reclassify_lock(struct socket *sock, int proto)
+{
+ struct sock *sk = sock->sk;
+
+ if (!sk)
+ return;
+
+ BUG_ON(sock_owned_by_user(sk));
+
+ sock_lock_init_class_and_name(sk,
+ bt_slock_key_strings[proto], &bt_slock_key[proto],
+ bt_key_strings[proto], &bt_lock_key[proto]);
+}
+#else
+static inline void bt_sock_reclassify_lock(struct socket *sock, int proto)
+{
+}
+#endif
int bt_sock_register(int proto, struct net_proto_family *ops)
{
+ int err = 0;
+
if (proto < 0 || proto >= BT_MAX_PROTO)
return -EINVAL;
+ write_lock(&bt_proto_lock);
+
if (bt_proto[proto])
- return -EEXIST;
+ err = -EEXIST;
+ else
+ bt_proto[proto] = ops;
- bt_proto[proto] = ops;
- return 0;
+ write_unlock(&bt_proto_lock);
+
+ return err;
}
EXPORT_SYMBOL(bt_sock_register);
int bt_sock_unregister(int proto)
{
+ int err = 0;
+
if (proto < 0 || proto >= BT_MAX_PROTO)
return -EINVAL;
+ write_lock(&bt_proto_lock);
+
if (!bt_proto[proto])
- return -ENOENT;
+ err = -ENOENT;
+ else
+ bt_proto[proto] = NULL;
- bt_proto[proto] = NULL;
- return 0;
+ write_unlock(&bt_proto_lock);
+
+ return err;
}
EXPORT_SYMBOL(bt_sock_unregister);
-static int bt_sock_create(struct socket *sock, int proto)
+static int bt_sock_create(struct net *net, struct socket *sock, int proto)
{
- int err = 0;
+ int err;
+
+ if (net != &init_net)
+ return -EAFNOSUPPORT;
if (proto < 0 || proto >= BT_MAX_PROTO)
return -EINVAL;
-#if defined(CONFIG_KMOD)
- if (!bt_proto[proto]) {
+ if (!bt_proto[proto])
request_module("bt-proto-%d", proto);
- }
-#endif
+
err = -EPROTONOSUPPORT;
+
+ read_lock(&bt_proto_lock);
+
if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) {
- err = bt_proto[proto]->create(sock, proto);
+ err = bt_proto[proto]->create(net, sock, proto);
+ bt_sock_reclassify_lock(sock, proto);
module_put(bt_proto[proto]->owner);
}
- return err;
+
+ read_unlock(&bt_proto_lock);
+
+ return err;
}
void bt_sock_link(struct bt_sock_list *l, struct sock *sk)
continue;
}
- if (sk->sk_state == BT_CONNECTED || !newsock) {
+ if (sk->sk_state == BT_CONNECTED || !newsock ||
+ bt_sk(parent)->defer_setup) {
bt_accept_unlink(sk);
if (newsock)
sock_graft(sk, newsock);
EXPORT_SYMBOL(bt_accept_dequeue);
int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, size_t len, int flags)
+ struct msghdr *msg, size_t len, int flags)
{
int noblock = flags & MSG_DONTWAIT;
struct sock *sk = sock->sk;
size_t copied;
int err;
- BT_DBG("sock %p sk %p len %d", sock, sk, len);
+ BT_DBG("sock %p sk %p len %zu", sock, sk, len);
if (flags & (MSG_OOB))
return -EOPNOTSUPP;
copied = len;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ if (err == 0)
+ sock_recv_timestamp(msg, sk, skb);
skb_free_datagram(sk, skb);
struct list_head *p, *n;
struct sock *sk;
+ if (bt_sk(parent)->defer_setup)
+ return POLLIN | POLLRDNORM;
+
list_for_each_safe(p, n, &bt_sk(parent)->accept_q) {
sk = (struct sock *) list_entry(p, struct bt_sock, accept_q);
if (sk->sk_state == BT_CONNECTED)
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
- if (!skb_queue_empty(&sk->sk_receive_queue) ||
+ if (!skb_queue_empty(&sk->sk_receive_queue) ||
(sk->sk_shutdown & RCV_SHUTDOWN))
mask |= POLLIN | POLLRDNORM;
}
EXPORT_SYMBOL(bt_sock_poll);
+int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ struct sock *sk = sock->sk;
+ struct sk_buff *skb;
+ long amount;
+ int err;
+
+ BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg);
+
+ switch (cmd) {
+ case TIOCOUTQ:
+ if (sk->sk_state == BT_LISTEN)
+ return -EINVAL;
+
+ amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
+ if (amount < 0)
+ amount = 0;
+ err = put_user(amount, (int __user *) arg);
+ break;
+
+ case TIOCINQ:
+ if (sk->sk_state == BT_LISTEN)
+ return -EINVAL;
+
+ lock_sock(sk);
+ skb = skb_peek(&sk->sk_receive_queue);
+ amount = skb ? skb->len : 0;
+ release_sock(sk);
+ err = put_user(amount, (int __user *) arg);
+ break;
+
+ case SIOCGSTAMP:
+ err = sock_get_timestamp(sk, (struct timeval __user *) arg);
+ break;
+
+ case SIOCGSTAMPNS:
+ err = sock_get_timestampns(sk, (struct timespec __user *) arg);
+ break;
+
+ default:
+ err = -ENOIOCTLCMD;
+ break;
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(bt_sock_ioctl);
+
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
{
DECLARE_WAITQUEUE(wait, current);
set_current_state(TASK_INTERRUPTIBLE);
if (!timeo) {
- err = -EAGAIN;
+ err = -EINPROGRESS;
break;
}
static int __init bt_init(void)
{
+ int err;
+
BT_INFO("Core ver %s", VERSION);
- sock_register(&bt_sock_family_ops);
+ err = bt_sysfs_init();
+ if (err < 0)
+ return err;
- BT_INFO("HCI device and connection manager initialized");
+ err = sock_register(&bt_sock_family_ops);
+ if (err < 0) {
+ bt_sysfs_cleanup();
+ return err;
+ }
- bt_sysfs_init();
+ BT_INFO("HCI device and connection manager initialized");
hci_sock_init();
{
hci_sock_cleanup();
- bt_sysfs_cleanup();
-
sock_unregister(PF_BLUETOOTH);
+
+ bt_sysfs_cleanup();
}
subsys_initcall(bt_init);
module_exit(bt_exit);
-MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>");
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth Core ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff