sco.c
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上传日期:2013-04-10
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文件大小:19k
- /*
- 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.
- */
- /*
- * BlueZ SCO sockets.
- *
- * $Id: sco.c,v 1.4 2002/07/22 20:32:54 maxk Exp $
- */
- #define VERSION "0.3"
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/types.h>
- #include <linux/errno.h>
- #include <linux/kernel.h>
- #include <linux/major.h>
- #include <linux/sched.h>
- #include <linux/slab.h>
- #include <linux/poll.h>
- #include <linux/fcntl.h>
- #include <linux/init.h>
- #include <linux/skbuff.h>
- #include <linux/interrupt.h>
- #include <linux/socket.h>
- #include <linux/skbuff.h>
- #include <linux/proc_fs.h>
- #include <linux/list.h>
- #include <net/sock.h>
- #include <asm/system.h>
- #include <asm/uaccess.h>
- #include <net/bluetooth/bluetooth.h>
- #include <net/bluetooth/hci_core.h>
- #include <net/bluetooth/sco.h>
- #ifndef SCO_DEBUG
- #undef BT_DBG
- #define BT_DBG( A... )
- #endif
- static struct proto_ops sco_sock_ops;
- static struct bluez_sock_list sco_sk_list = {
- lock: RW_LOCK_UNLOCKED
- };
- 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 inline struct sock * sco_chan_get(struct sco_conn *conn);
- static int sco_conn_del(struct hci_conn *conn, int err);
- static void sco_sock_close(struct sock *sk);
- static void sco_sock_kill(struct sock *sk);
- /* ----- SCO timers ------ */
- static void sco_sock_timeout(unsigned long arg)
- {
- struct sock *sk = (struct sock *) arg;
- BT_DBG("sock %p state %d", sk, sk->state);
- bh_lock_sock(sk);
- sk->err = ETIMEDOUT;
- sk->state_change(sk);
- bh_unlock_sock(sk);
- sco_sock_kill(sk);
- sock_put(sk);
- }
- static void sco_sock_set_timer(struct sock *sk, long timeout)
- {
- BT_DBG("sock %p state %d timeout %ld", sk, sk->state, timeout);
- if (!mod_timer(&sk->timer, jiffies + timeout))
- sock_hold(sk);
- }
- static void sco_sock_clear_timer(struct sock *sk)
- {
- BT_DBG("sock %p state %d", sk, sk->state);
- if (timer_pending(&sk->timer) && del_timer(&sk->timer))
- __sock_put(sk);
- }
- static void sco_sock_init_timer(struct sock *sk)
- {
- init_timer(&sk->timer);
- sk->timer.function = sco_sock_timeout;
- sk->timer.data = (unsigned long)sk;
- }
- /* -------- SCO connections --------- */
- static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
- {
- struct hci_dev *hdev = hcon->hdev;
- struct sco_conn *conn;
- if ((conn = hcon->sco_data))
- return conn;
- if (status)
- return conn;
- if (!(conn = kmalloc(sizeof(struct sco_conn), GFP_ATOMIC)))
- return NULL;
- memset(conn, 0, sizeof(struct sco_conn));
- spin_lock_init(&conn->lock);
- hcon->sco_data = conn;
- conn->hcon = hcon;
- conn->src = &hdev->bdaddr;
- conn->dst = &hcon->dst;
-
- if (hdev->sco_mtu > 0)
- conn->mtu = hdev->sco_mtu;
- else
- conn->mtu = 60;
- BT_DBG("hcon %p conn %p", hcon, conn);
- MOD_INC_USE_COUNT;
- return conn;
- }
- static int sco_conn_del(struct hci_conn *hcon, int err)
- {
- struct sco_conn *conn;
- struct sock *sk;
- if (!(conn = hcon->sco_data))
- return 0;
- BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
- /* Kill socket */
- if ((sk = sco_chan_get(conn))) {
- bh_lock_sock(sk);
- sco_sock_clear_timer(sk);
- sco_chan_del(sk, err);
- bh_unlock_sock(sk);
- sco_sock_kill(sk);
- }
- hcon->sco_data = NULL;
- kfree(conn);
- MOD_DEC_USE_COUNT;
- return 0;
- }
- int sco_connect(struct sock *sk)
- {
- bdaddr_t *src = &bluez_pi(sk)->src;
- bdaddr_t *dst = &bluez_pi(sk)->dst;
- struct sco_conn *conn;
- struct hci_conn *hcon;
- struct hci_dev *hdev;
- int err = 0;
- BT_DBG("%s -> %s", batostr(src), batostr(dst));
- if (!(hdev = hci_get_route(dst, src)))
- return -EHOSTUNREACH;
- hci_dev_lock_bh(hdev);
- err = -ENOMEM;
- hcon = hci_connect(hdev, SCO_LINK, dst);
- if (!hcon)
- goto done;
- conn = sco_conn_add(hcon, 0);
- if (!conn) {
- hci_conn_put(hcon);
- goto done;
- }
- /* Update source addr of the socket */
- bacpy(src, conn->src);
- err = sco_chan_add(conn, sk, NULL);
- if (err)
- goto done;
- if (hcon->state == BT_CONNECTED) {
- sco_sock_clear_timer(sk);
- sk->state = BT_CONNECTED;
- } else {
- sk->state = BT_CONNECT;
- sco_sock_set_timer(sk, sk->sndtimeo);
- }
- done:
- hci_dev_unlock_bh(hdev);
- hci_dev_put(hdev);
- return err;
- }
- static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
- {
- struct sco_conn *conn = sco_pi(sk)->conn;
- struct sk_buff *skb;
- int err, count;
- /* Check outgoing MTU */
- if (len > conn->mtu)
- return -EINVAL;
- BT_DBG("sk %p len %d", sk, len);
- count = MIN(conn->mtu, len);
- if (!(skb = bluez_skb_send_alloc(sk, count, msg->msg_flags & MSG_DONTWAIT, &err)))
- return err;
- if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) {
- err = -EFAULT;
- goto fail;
- }
- if ((err = hci_send_sco(conn->hcon, skb)) < 0)
- goto fail;
- return count;
- fail:
- kfree_skb(skb);
- return err;
- }
- static inline void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
- {
- struct sock *sk = sco_chan_get(conn);
- if (!sk)
- goto drop;
- BT_DBG("sk %p len %d", sk, skb->len);
- if (sk->state != BT_CONNECTED)
- goto drop;
- if (!sock_queue_rcv_skb(sk, skb))
- return;
- drop:
- kfree_skb(skb);
- return;
- }
- /* -------- Socket interface ---------- */
- static struct sock *__sco_get_sock_by_addr(bdaddr_t *ba)
- {
- struct sock *sk;
- for (sk = sco_sk_list.head; sk; sk = sk->next) {
- if (!bacmp(&bluez_pi(sk)->src, ba))
- break;
- }
- return sk;
- }
- /* Find socket listening on source bdaddr.
- * Returns closest match.
- */
- static struct sock *sco_get_sock_listen(bdaddr_t *src)
- {
- struct sock *sk, *sk1 = NULL;
- read_lock(&sco_sk_list.lock);
- for (sk = sco_sk_list.head; sk; sk = sk->next) {
- if (sk->state != BT_LISTEN)
- continue;
- /* Exact match. */
- if (!bacmp(&bluez_pi(sk)->src, src))
- break;
- /* Closest match */
- if (!bacmp(&bluez_pi(sk)->src, BDADDR_ANY))
- sk1 = sk;
- }
- read_unlock(&sco_sk_list.lock);
- return sk ? sk : sk1;
- }
- static void sco_sock_destruct(struct sock *sk)
- {
- BT_DBG("sk %p", sk);
- skb_queue_purge(&sk->receive_queue);
- skb_queue_purge(&sk->write_queue);
- MOD_DEC_USE_COUNT;
- }
- static void sco_sock_cleanup_listen(struct sock *parent)
- {
- struct sock *sk;
- BT_DBG("parent %p", parent);
- /* Close not yet accepted channels */
- while ((sk = bluez_accept_dequeue(parent, NULL)))
- sco_sock_close(sk);
- parent->state = BT_CLOSED;
- parent->zapped = 1;
- }
- /* Kill socket (only if zapped and orphan)
- * Must be called on unlocked socket.
- */
- static void sco_sock_kill(struct sock *sk)
- {
- if (!sk->zapped || sk->socket)
- return;
- BT_DBG("sk %p state %d", sk, sk->state);
- /* Kill poor orphan */
- bluez_sock_unlink(&sco_sk_list, sk);
- sk->dead = 1;
- sock_put(sk);
- }
- /* Close socket.
- * Must be called on unlocked socket.
- */
- 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->state, conn, sk->socket);
- switch (sk->state) {
- case BT_LISTEN:
- sco_sock_cleanup_listen(sk);
- break;
- case BT_CONNECTED:
- case BT_CONFIG:
- case BT_CONNECT:
- case BT_DISCONN:
- sco_chan_del(sk, ECONNRESET);
- break;
- default:
- sk->zapped = 1;
- break;
- };
- release_sock(sk);
- sco_sock_kill(sk);
- }
- static void sco_sock_init(struct sock *sk, struct sock *parent)
- {
- BT_DBG("sk %p", sk);
- if (parent)
- sk->type = parent->type;
- }
- static struct sock *sco_sock_alloc(struct socket *sock, int proto, int prio)
- {
- struct sock *sk;
- if (!(sk = sk_alloc(PF_BLUETOOTH, prio, 1)))
- return NULL;
- bluez_sock_init(sock, sk);
- sk->zapped = 0;
- sk->destruct = sco_sock_destruct;
- sk->sndtimeo = SCO_CONN_TIMEOUT;
- sk->protocol = proto;
- sk->state = BT_OPEN;
- sco_sock_init_timer(sk);
- bluez_sock_link(&sco_sk_list, sk);
- MOD_INC_USE_COUNT;
- return sk;
- }
- static int sco_sock_create(struct socket *sock, int protocol)
- {
- struct sock *sk;
- BT_DBG("sock %p", sock);
- sock->state = SS_UNCONNECTED;
- if (sock->type != SOCK_SEQPACKET)
- return -ESOCKTNOSUPPORT;
- sock->ops = &sco_sock_ops;
- if (!(sk = sco_sock_alloc(sock, protocol, GFP_KERNEL)))
- return -ENOMEM;
- sco_sock_init(sk, NULL);
- return 0;
- }
- static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
- {
- struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
- struct sock *sk = sock->sk;
- bdaddr_t *src = &sa->sco_bdaddr;
- int err = 0;
- BT_DBG("sk %p %s", sk, batostr(&sa->sco_bdaddr));
- if (!addr || addr->sa_family != AF_BLUETOOTH)
- return -EINVAL;
- lock_sock(sk);
- if (sk->state != BT_OPEN) {
- err = -EBADFD;
- goto done;
- }
- write_lock_bh(&sco_sk_list.lock);
- if (bacmp(src, BDADDR_ANY) && __sco_get_sock_by_addr(src)) {
- err = -EADDRINUSE;
- } else {
- /* Save source address */
- bacpy(&bluez_pi(sk)->src, &sa->sco_bdaddr);
- sk->state = BT_BOUND;
- }
- write_unlock_bh(&sco_sk_list.lock);
- done:
- release_sock(sk);
- return err;
- }
- static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
- {
- struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
- struct sock *sk = sock->sk;
- int err = 0;
- BT_DBG("sk %p", sk);
- if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_sco))
- return -EINVAL;
- if (sk->state != BT_OPEN && sk->state != BT_BOUND)
- return -EBADFD;
- if (sk->type != SOCK_SEQPACKET)
- return -EINVAL;
- lock_sock(sk);
- /* Set destination address and psm */
- bacpy(&bluez_pi(sk)->dst, &sa->sco_bdaddr);
- if ((err = sco_connect(sk)))
- goto done;
- err = bluez_sock_w4_connect(sk, flags);
- done:
- release_sock(sk);
- return err;
- }
- int sco_sock_listen(struct socket *sock, int backlog)
- {
- struct sock *sk = sock->sk;
- int err = 0;
- BT_DBG("sk %p backlog %d", sk, backlog);
- lock_sock(sk);
- if (sk->state != BT_BOUND || sock->type != SOCK_SEQPACKET) {
- err = -EBADFD;
- goto done;
- }
- sk->max_ack_backlog = backlog;
- sk->ack_backlog = 0;
- sk->state = BT_LISTEN;
- done:
- release_sock(sk);
- return err;
- }
- int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags)
- {
- DECLARE_WAITQUEUE(wait, current);
- struct sock *sk = sock->sk, *ch;
- long timeo;
- int err = 0;
- lock_sock(sk);
- if (sk->state != BT_LISTEN) {
- err = -EBADFD;
- goto done;
- }
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
- BT_DBG("sk %p timeo %ld", sk, timeo);
- /* Wait for an incoming connection. (wake-one). */
- add_wait_queue_exclusive(sk->sleep, &wait);
- while (!(ch = bluez_accept_dequeue(sk, newsock))) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (!timeo) {
- err = -EAGAIN;
- break;
- }
- release_sock(sk);
- timeo = schedule_timeout(timeo);
- lock_sock(sk);
- if (sk->state != BT_LISTEN) {
- err = -EBADFD;
- break;
- }
- if (signal_pending(current)) {
- err = sock_intr_errno(timeo);
- break;
- }
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(sk->sleep, &wait);
- if (err)
- goto done;
- newsock->state = SS_CONNECTED;
- BT_DBG("new socket %p", ch);
- done:
- release_sock(sk);
- return err;
- }
- static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
- {
- struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
- struct sock *sk = sock->sk;
- BT_DBG("sock %p, sk %p", sock, sk);
- addr->sa_family = AF_BLUETOOTH;
- *len = sizeof(struct sockaddr_sco);
- if (peer)
- bacpy(&sa->sco_bdaddr, &bluez_pi(sk)->dst);
- else
- bacpy(&sa->sco_bdaddr, &bluez_pi(sk)->src);
- return 0;
- }
- static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg, int len, struct scm_cookie *scm)
- {
- struct sock *sk = sock->sk;
- int err = 0;
- BT_DBG("sock %p, sk %p", sock, sk);
- if (sk->err)
- return sock_error(sk);
- if (msg->msg_flags & MSG_OOB)
- return -EOPNOTSUPP;
- lock_sock(sk);
- if (sk->state == BT_CONNECTED)
- err = sco_send_frame(sk, msg, len);
- else
- err = -ENOTCONN;
- release_sock(sk);
- return err;
- }
- int sco_sock_setsockopt(struct socket *sock, int level, int optname, char *optval, int optlen)
- {
- struct sock *sk = sock->sk;
- int err = 0;
- BT_DBG("sk %p", sk);
- lock_sock(sk);
- switch (optname) {
- default:
- err = -ENOPROTOOPT;
- break;
- };
- release_sock(sk);
- return err;
- }
- int sco_sock_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen)
- {
- struct sock *sk = sock->sk;
- struct sco_options opts;
- struct sco_conninfo cinfo;
- int len, err = 0;
- BT_DBG("sk %p", sk);
- if (get_user(len, optlen))
- return -EFAULT;
- lock_sock(sk);
- switch (optname) {
- case SCO_OPTIONS:
- if (sk->state != BT_CONNECTED) {
- err = -ENOTCONN;
- break;
- }
-
- opts.mtu = sco_pi(sk)->conn->mtu;
- BT_INFO("mtu %d", opts.mtu);
- len = MIN(len, sizeof(opts));
- if (copy_to_user(optval, (char *)&opts, len))
- err = -EFAULT;
- break;
- case SCO_CONNINFO:
- if (sk->state != BT_CONNECTED) {
- err = -ENOTCONN;
- break;
- }
- cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle;
- len = MIN(len, sizeof(cinfo));
- if (copy_to_user(optval, (char *)&cinfo, len))
- err = -EFAULT;
- break;
- default:
- err = -ENOPROTOOPT;
- break;
- };
- release_sock(sk);
- return err;
- }
- static int sco_sock_release(struct socket *sock)
- {
- struct sock *sk = sock->sk;
- BT_DBG("sock %p, sk %p", sock, sk);
- if (!sk)
- return 0;
- sock_orphan(sk);
- sco_sock_close(sk);
- return 0;
- }
- static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
- {
- BT_DBG("conn %p", conn);
- sco_pi(sk)->conn = conn;
- conn->sk = sk;
- if (parent)
- bluez_accept_enqueue(parent, sk);
- }
- static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
- {
- int err = 0;
- sco_conn_lock(conn);
- if (conn->sk) {
- err = -EBUSY;
- } else {
- __sco_chan_add(conn, sk, parent);
- }
- sco_conn_unlock(conn);
- return err;
- }
- static inline struct sock * sco_chan_get(struct sco_conn *conn)
- {
- struct sock *sk = NULL;
- sco_conn_lock(conn);
- sk = conn->sk;
- sco_conn_unlock(conn);
- return sk;
- }
- /* Delete channel.
- * Must be called on the locked socket. */
- static void sco_chan_del(struct sock *sk, int err)
- {
- struct sco_conn *conn;
- conn = sco_pi(sk)->conn;
- BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
- if (conn) {
- sco_conn_lock(conn);
- conn->sk = NULL;
- sco_pi(sk)->conn = NULL;
- sco_conn_unlock(conn);
- hci_conn_put(conn->hcon);
- }
- sk->state = BT_CLOSED;
- sk->err = err;
- sk->state_change(sk);
- sk->zapped = 1;
- }
- static void sco_conn_ready(struct sco_conn *conn)
- {
- struct sock *parent, *sk;
- BT_DBG("conn %p", conn);
- sco_conn_lock(conn);
- if ((sk = conn->sk)) {
- sco_sock_clear_timer(sk);
- bh_lock_sock(sk);
- sk->state = BT_CONNECTED;
- sk->state_change(sk);
- bh_unlock_sock(sk);
- } else {
- parent = sco_get_sock_listen(conn->src);
- if (!parent)
- goto done;
- bh_lock_sock(parent);
- sk = sco_sock_alloc(NULL, BTPROTO_SCO, GFP_ATOMIC);
- if (!sk) {
- bh_unlock_sock(parent);
- goto done;
- }
- sco_sock_init(sk, parent);
- bacpy(&bluez_pi(sk)->src, conn->src);
- bacpy(&bluez_pi(sk)->dst, conn->dst);
- hci_conn_hold(conn->hcon);
- __sco_chan_add(conn, sk, parent);
- sk->state = BT_CONNECTED;
- /* Wake up parent */
- parent->data_ready(parent, 1);
-
- bh_unlock_sock(parent);
- }
- done:
- sco_conn_unlock(conn);
- }
- /* ----- SCO interface with lower layer (HCI) ----- */
- int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
- {
- BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
- /* Always accept connection */
- return HCI_LM_ACCEPT;
- }
- int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
- {
- BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
- if (hcon->type != SCO_LINK)
- return 0;
- if (!status) {
- struct sco_conn *conn;
- conn = sco_conn_add(hcon, status);
- if (conn)
- sco_conn_ready(conn);
- } else
- sco_conn_del(hcon, bterr(status));
-
- return 0;
- }
- int sco_disconn_ind(struct hci_conn *hcon, __u8 reason)
- {
- BT_DBG("hcon %p reason %d", hcon, reason);
- if (hcon->type != SCO_LINK)
- return 0;
- sco_conn_del(hcon, bterr(reason));
- return 0;
- }
- int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
- {
- struct sco_conn *conn = hcon->sco_data;
- if (!conn)
- goto drop;
- BT_DBG("conn %p len %d", conn, skb->len);
- if (skb->len) {
- sco_recv_frame(conn, skb);
- return 0;
- }
- drop:
- kfree_skb(skb);
- return 0;
- }
- /* ----- Proc fs support ------ */
- static int sco_sock_dump(char *buf, struct bluez_sock_list *list)
- {
- struct sco_pinfo *pi;
- struct sock *sk;
- char *ptr = buf;
- write_lock_bh(&list->lock);
- for (sk = list->head; sk; sk = sk->next) {
- pi = sco_pi(sk);
- ptr += sprintf(ptr, "%s %s %dn",
- batostr(&bluez_pi(sk)->src), batostr(&bluez_pi(sk)->dst),
- sk->state);
- }
- write_unlock_bh(&list->lock);
- ptr += sprintf(ptr, "n");
- return ptr - buf;
- }
- static int sco_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *priv)
- {
- char *ptr = buf;
- int len;
- BT_DBG("count %d, offset %ld", count, offset);
- ptr += sco_sock_dump(ptr, &sco_sk_list);
- len = ptr - buf;
- if (len <= count + offset)
- *eof = 1;
- *start = buf + offset;
- len -= offset;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
- return len;
- }
- static struct proto_ops sco_sock_ops = {
- family: PF_BLUETOOTH,
- release: sco_sock_release,
- bind: sco_sock_bind,
- connect: sco_sock_connect,
- listen: sco_sock_listen,
- accept: sco_sock_accept,
- getname: sco_sock_getname,
- sendmsg: sco_sock_sendmsg,
- recvmsg: bluez_sock_recvmsg,
- poll: bluez_sock_poll,
- socketpair: sock_no_socketpair,
- ioctl: sock_no_ioctl,
- shutdown: sock_no_shutdown,
- setsockopt: sco_sock_setsockopt,
- getsockopt: sco_sock_getsockopt,
- mmap: sock_no_mmap
- };
- static struct net_proto_family sco_sock_family_ops = {
- family: PF_BLUETOOTH,
- create: sco_sock_create
- };
- static struct hci_proto sco_hci_proto = {
- name: "SCO",
- id: HCI_PROTO_SCO,
- connect_ind: sco_connect_ind,
- connect_cfm: sco_connect_cfm,
- disconn_ind: sco_disconn_ind,
- recv_scodata: sco_recv_scodata,
- };
- int __init sco_init(void)
- {
- int err;
- if ((err = bluez_sock_register(BTPROTO_SCO, &sco_sock_family_ops))) {
- BT_ERR("Can't register SCO socket layer");
- return err;
- }
- if ((err = hci_register_proto(&sco_hci_proto))) {
- BT_ERR("Can't register SCO protocol");
- return err;
- }
- 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("Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>");
- return 0;
- }
- void sco_cleanup(void)
- {
- int err;
- remove_proc_entry("bluetooth/sco", NULL);
- /* Unregister socket, protocol and notifier */
- if ((err = bluez_sock_unregister(BTPROTO_SCO)))
- BT_ERR("Can't unregister SCO socket layer %d", err);
- if ((err = hci_unregister_proto(&sco_hci_proto)))
- BT_ERR("Can't unregister SCO protocol %d", err);
- }
- module_init(sco_init);
- module_exit(sco_cleanup);
- MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>");
- MODULE_DESCRIPTION("BlueZ SCO ver " VERSION);
- MODULE_LICENSE("GPL");