diff options
Diffstat (limited to 'net/bluetooth_tizen/af_bluetooth.c')
| -rw-r--r-- | net/bluetooth_tizen/af_bluetooth.c | 616 |
1 files changed, 0 insertions, 616 deletions
diff --git a/net/bluetooth_tizen/af_bluetooth.c b/net/bluetooth_tizen/af_bluetooth.c deleted file mode 100644 index 6fb68a9..0000000 --- a/net/bluetooth_tizen/af_bluetooth.c +++ /dev/null @@ -1,616 +0,0 @@ -/* - BlueZ - Bluetooth protocol stack for Linux - Copyright (C) 2000-2001 Qualcomm Incorporated - - Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> - - 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 - published by the Free Software Foundation; - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - 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 - 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 - SOFTWARE IS DISCLAIMED. -*/ - -/* Bluetooth address family and sockets. */ - -#include <linux/module.h> - -#include <linux/types.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/skbuff.h> -#include <linux/init.h> -#include <linux/poll.h> -#include <net/sock.h> -#include <asm/ioctls.h> -#include <linux/kmod.h> - -#include <net/bluetooth/bluetooth.h> - -#define VERSION "2.16" - -/* Bluetooth sockets */ -#define BT_MAX_PROTO 8 -static const struct net_proto_family *bt_proto[BT_MAX_PROTO]; -static DEFINE_RWLOCK(bt_proto_lock); - -static struct lock_class_key bt_lock_key[BT_MAX_PROTO]; -static const char *const 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 *const 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", -}; - -void bt_sock_reclassify_lock(struct sock *sk, int proto) -{ - BUG_ON(!sk); - 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]); -} -EXPORT_SYMBOL(bt_sock_reclassify_lock); - -int bt_sock_register(int proto, const 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]) - err = -EEXIST; - else - bt_proto[proto] = ops; - - 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]) - err = -ENOENT; - else - bt_proto[proto] = NULL; - - write_unlock(&bt_proto_lock); - - return err; -} -EXPORT_SYMBOL(bt_sock_unregister); - -static int bt_sock_create(struct net *net, struct socket *sock, int proto, - int kern) -{ - int err; - - if (net != &init_net) - return -EAFNOSUPPORT; - - if (proto < 0 || proto >= BT_MAX_PROTO) - return -EINVAL; - - if (!bt_proto[proto]) - request_module("bt-proto-%d", proto); - - err = -EPROTONOSUPPORT; - - read_lock(&bt_proto_lock); - - if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) { - err = bt_proto[proto]->create(net, sock, proto, kern); - if (!err) - bt_sock_reclassify_lock(sock->sk, proto); - module_put(bt_proto[proto]->owner); - } - - read_unlock(&bt_proto_lock); - - return err; -} - -void bt_sock_link(struct bt_sock_list *l, struct sock *sk) -{ - write_lock(&l->lock); - sk_add_node(sk, &l->head); - write_unlock(&l->lock); -} -EXPORT_SYMBOL(bt_sock_link); - -void bt_sock_unlink(struct bt_sock_list *l, struct sock *sk) -{ - write_lock(&l->lock); - sk_del_node_init(sk); - write_unlock(&l->lock); -} -EXPORT_SYMBOL(bt_sock_unlink); - -void bt_accept_enqueue(struct sock *parent, struct sock *sk) -{ - BT_DBG("parent %p, sk %p", parent, sk); - - sock_hold(sk); - list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q); - bt_sk(sk)->parent = parent; - parent->sk_ack_backlog++; -} -EXPORT_SYMBOL(bt_accept_enqueue); - -void bt_accept_unlink(struct sock *sk) -{ - BT_DBG("sk %p state %d", sk, sk->sk_state); - - list_del_init(&bt_sk(sk)->accept_q); - bt_sk(sk)->parent->sk_ack_backlog--; - bt_sk(sk)->parent = NULL; - sock_put(sk); -} -EXPORT_SYMBOL(bt_accept_unlink); - -struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock) -{ - struct list_head *p, *n; - struct sock *sk; - - BT_DBG("parent %p", parent); - - list_for_each_safe(p, n, &bt_sk(parent)->accept_q) { - sk = (struct sock *) list_entry(p, struct bt_sock, accept_q); - - lock_sock(sk); - - /* FIXME: Is this check still needed */ - if (sk->sk_state == BT_CLOSED) { - release_sock(sk); - bt_accept_unlink(sk); - continue; - } - - if (sk->sk_state == BT_CONNECTED || !newsock || - bt_sk(parent)->defer_setup) { - bt_accept_unlink(sk); - if (newsock) - sock_graft(sk, newsock); - - release_sock(sk); - return sk; - } - - release_sock(sk); - } - - return NULL; -} -EXPORT_SYMBOL(bt_accept_dequeue); - -int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, - struct msghdr *msg, size_t len, int flags) -{ - int noblock = flags & MSG_DONTWAIT; - struct sock *sk = sock->sk; - struct sk_buff *skb; - size_t copied; - int err; - - BT_DBG("sock %p sk %p len %zu", sock, sk, len); - - if (flags & (MSG_OOB)) - return -EOPNOTSUPP; - - skb = skb_recv_datagram(sk, flags, noblock, &err); - if (!skb) { - if (sk->sk_shutdown & RCV_SHUTDOWN) - return 0; - return err; - } - - msg->msg_namelen = 0; - - copied = skb->len; - if (len < copied) { - msg->msg_flags |= MSG_TRUNC; - copied = len; - } - - skb_reset_transport_header(skb); - err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); - if (err == 0) - sock_recv_ts_and_drops(msg, sk, skb); - - skb_free_datagram(sk, skb); - - return err ? : copied; -} -EXPORT_SYMBOL(bt_sock_recvmsg); - -static long bt_sock_data_wait(struct sock *sk, long timeo) -{ - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(sk_sleep(sk), &wait); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - - if (!skb_queue_empty(&sk->sk_receive_queue)) - break; - - if (sk->sk_err || (sk->sk_shutdown & RCV_SHUTDOWN)) - break; - - if (signal_pending(current) || !timeo) - break; - - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); - release_sock(sk); - timeo = schedule_timeout(timeo); - lock_sock(sk); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); - } - - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk_sleep(sk), &wait); - return timeo; -} - -int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock, - struct msghdr *msg, size_t size, int flags) -{ - struct sock *sk = sock->sk; - int err = 0; - size_t target, copied = 0; - long timeo; - - if (flags & MSG_OOB) - return -EOPNOTSUPP; - - msg->msg_namelen = 0; - - BT_DBG("sk %p size %zu", sk, size); - - lock_sock(sk); - - target = sock_rcvlowat(sk, flags & MSG_WAITALL, size); - timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); - - do { - struct sk_buff *skb; - int chunk; - - skb = skb_dequeue(&sk->sk_receive_queue); - if (!skb) { - if (copied >= target) - break; - - err = sock_error(sk); - if (err) - break; - if (sk->sk_shutdown & RCV_SHUTDOWN) - break; - - err = -EAGAIN; - if (!timeo) - break; - - timeo = bt_sock_data_wait(sk, timeo); - - if (signal_pending(current)) { - err = sock_intr_errno(timeo); - goto out; - } - continue; - } - - chunk = min_t(unsigned int, skb->len, size); - if (skb_copy_datagram_iovec(skb, 0, msg->msg_iov, chunk)) { - skb_queue_head(&sk->sk_receive_queue, skb); - if (!copied) - copied = -EFAULT; - break; - } - copied += chunk; - size -= chunk; - - sock_recv_ts_and_drops(msg, sk, skb); - - if (!(flags & MSG_PEEK)) { - int skb_len = skb_headlen(skb); - - if (chunk <= skb_len) { - __skb_pull(skb, chunk); - } else { - struct sk_buff *frag; - - __skb_pull(skb, skb_len); - chunk -= skb_len; - - skb_walk_frags(skb, frag) { - if (chunk <= frag->len) { - /* Pulling partial data */ - skb->len -= chunk; - skb->data_len -= chunk; - __skb_pull(frag, chunk); - break; - } else if (frag->len) { - /* Pulling all frag data */ - chunk -= frag->len; - skb->len -= frag->len; - skb->data_len -= frag->len; - __skb_pull(frag, frag->len); - } - } - } - - if (skb->len) { - skb_queue_head(&sk->sk_receive_queue, skb); - break; - } - kfree_skb(skb); - - } else { - /* put message back and return */ - skb_queue_head(&sk->sk_receive_queue, skb); - break; - } - } while (size); - -out: - release_sock(sk); - return copied ? : err; -} -EXPORT_SYMBOL(bt_sock_stream_recvmsg); - -static inline unsigned int bt_accept_poll(struct sock *parent) -{ - struct list_head *p, *n; - struct sock *sk; - - 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 || - (bt_sk(parent)->defer_setup && - sk->sk_state == BT_CONNECT2)) - return POLLIN | POLLRDNORM; - } - - return 0; -} - -unsigned int bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait) -{ - struct sock *sk = sock->sk; - unsigned int mask = 0; - - BT_DBG("sock %p, sk %p", sock, sk); - - poll_wait(file, sk_sleep(sk), wait); - - if (sk->sk_state == BT_LISTEN) - return bt_accept_poll(sk); - - if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue)) - mask |= POLLERR; - - if (sk->sk_shutdown & RCV_SHUTDOWN) - mask |= POLLRDHUP | POLLIN | POLLRDNORM; - - if (sk->sk_shutdown == SHUTDOWN_MASK) - mask |= POLLHUP; - - if (!skb_queue_empty(&sk->sk_receive_queue)) - mask |= POLLIN | POLLRDNORM; - - if (sk->sk_state == BT_CLOSED) - mask |= POLLHUP; - - if (sk->sk_state == BT_CONNECT || - sk->sk_state == BT_CONNECT2 || - sk->sk_state == BT_CONFIG) - return mask; - - if (!bt_sk(sk)->suspended && sock_writeable(sk)) - mask |= POLLOUT | POLLWRNORM | POLLWRBAND; - else - set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); - - return mask; -} -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 - sk_wmem_alloc_get(sk); - 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); - int err = 0; - - BT_DBG("sk %p", sk); - - add_wait_queue(sk_sleep(sk), &wait); - set_current_state(TASK_INTERRUPTIBLE); - while (sk->sk_state != state) { - if (!timeo) { - err = -EINPROGRESS; - break; - } - - if (signal_pending(current)) { - err = sock_intr_errno(timeo); - break; - } - - release_sock(sk); - timeo = schedule_timeout(timeo); - lock_sock(sk); - set_current_state(TASK_INTERRUPTIBLE); - - err = sock_error(sk); - if (err) - break; - } - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk_sleep(sk), &wait); - return err; -} -EXPORT_SYMBOL(bt_sock_wait_state); - -static struct net_proto_family bt_sock_family_ops = { - .owner = THIS_MODULE, - .family = PF_BLUETOOTH, - .create = bt_sock_create, -}; - -static int __init bt_init(void) -{ - int err; - - BT_INFO("Core ver %s", VERSION); - - err = bt_sysfs_init(); - if (err < 0) - return err; - - err = sock_register(&bt_sock_family_ops); - if (err < 0) { - bt_sysfs_cleanup(); - return err; - } - - BT_INFO("HCI device and connection manager initialized"); - - err = hci_sock_init(); - if (err < 0) - goto error; - - err = l2cap_init(); - if (err < 0) - goto sock_err; - - err = sco_init(); - if (err < 0) { - l2cap_exit(); - goto sock_err; - } - - return 0; - -sock_err: - hci_sock_cleanup(); - -error: - sock_unregister(PF_BLUETOOTH); - bt_sysfs_cleanup(); - - return err; -} - -static void __exit bt_exit(void) -{ - - sco_exit(); - - l2cap_exit(); - - hci_sock_cleanup(); - - sock_unregister(PF_BLUETOOTH); - - bt_sysfs_cleanup(); -} - -subsys_initcall(bt_init); -module_exit(bt_exit); - -MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); -MODULE_DESCRIPTION("Bluetooth Core ver " VERSION); -MODULE_VERSION(VERSION); -MODULE_LICENSE("GPL"); -MODULE_ALIAS_NETPROTO(PF_BLUETOOTH); |