2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
25 /* Bluetooth SCO sockets. */
27 #include <linux/module.h>
28 #include <linux/debugfs.h>
29 #include <linux/seq_file.h>
31 #include <net/bluetooth/bluetooth.h>
32 #include <net/bluetooth/hci_core.h>
33 #include <net/bluetooth/sco.h>
35 static bool disable_esco;
37 static const struct proto_ops sco_sock_ops;
39 static struct bt_sock_list sco_sk_list = {
40 .lock = __RW_LOCK_UNLOCKED(sco_sk_list.lock)
43 /* ---- SCO connections ---- */
45 struct hci_conn *hcon;
53 #define sco_conn_lock(c) spin_lock(&c->lock);
54 #define sco_conn_unlock(c) spin_unlock(&c->lock);
56 static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent);
57 static void sco_chan_del(struct sock *sk, int err);
59 static void sco_sock_close(struct sock *sk);
60 static void sco_sock_kill(struct sock *sk);
62 /* ----- SCO socket info ----- */
63 #define sco_pi(sk) ((struct sco_pinfo *) sk)
71 struct sco_conn *conn;
74 /* ---- SCO timers ---- */
75 #define SCO_CONN_TIMEOUT (HZ * 40)
76 #define SCO_DISCONN_TIMEOUT (HZ * 2)
78 static void sco_sock_timeout(unsigned long arg)
80 struct sock *sk = (struct sock *) arg;
82 BT_DBG("sock %p state %d", sk, sk->sk_state);
85 sk->sk_err = ETIMEDOUT;
86 sk->sk_state_change(sk);
93 static void sco_sock_set_timer(struct sock *sk, long timeout)
95 BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout);
96 sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout);
99 static void sco_sock_clear_timer(struct sock *sk)
101 BT_DBG("sock %p state %d", sk, sk->sk_state);
102 sk_stop_timer(sk, &sk->sk_timer);
105 /* ---- SCO connections ---- */
106 static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
108 struct hci_dev *hdev = hcon->hdev;
109 struct sco_conn *conn = hcon->sco_data;
114 conn = kzalloc(sizeof(struct sco_conn), GFP_KERNEL);
118 spin_lock_init(&conn->lock);
120 hcon->sco_data = conn;
123 if (hdev->sco_mtu > 0)
124 conn->mtu = hdev->sco_mtu;
128 BT_DBG("hcon %p conn %p", hcon, conn);
133 static struct sock *sco_chan_get(struct sco_conn *conn)
135 struct sock *sk = NULL;
138 sco_conn_unlock(conn);
142 static int sco_conn_del(struct hci_conn *hcon, int err)
144 struct sco_conn *conn = hcon->sco_data;
150 BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
153 sk = sco_chan_get(conn);
156 sco_sock_clear_timer(sk);
157 sco_chan_del(sk, err);
162 hcon->sco_data = NULL;
167 static int sco_chan_add(struct sco_conn *conn, struct sock *sk,
176 __sco_chan_add(conn, sk, parent);
178 sco_conn_unlock(conn);
182 static int sco_connect(struct sock *sk)
184 struct sco_conn *conn;
185 struct hci_conn *hcon;
186 struct hci_dev *hdev;
189 BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst);
191 hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src);
193 return -EHOSTUNREACH;
197 if (lmp_esco_capable(hdev) && !disable_esco)
202 if (sco_pi(sk)->setting == BT_VOICE_TRANSPARENT &&
203 (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) {
208 hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst,
209 sco_pi(sk)->setting);
215 conn = sco_conn_add(hcon);
222 /* Update source addr of the socket */
223 bacpy(&sco_pi(sk)->src, &hcon->src);
225 err = sco_chan_add(conn, sk, NULL);
229 if (hcon->state == BT_CONNECTED) {
230 sco_sock_clear_timer(sk);
231 sk->sk_state = BT_CONNECTED;
233 sk->sk_state = BT_CONNECT;
234 sco_sock_set_timer(sk, sk->sk_sndtimeo);
238 hci_dev_unlock(hdev);
243 static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
245 struct sco_conn *conn = sco_pi(sk)->conn;
249 /* Check outgoing MTU */
253 BT_DBG("sk %p len %d", sk, len);
255 skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
259 if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
264 hci_send_sco(conn->hcon, skb);
269 static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
271 struct sock *sk = sco_chan_get(conn);
276 BT_DBG("sk %p len %d", sk, skb->len);
278 if (sk->sk_state != BT_CONNECTED)
281 if (!sock_queue_rcv_skb(sk, skb))
288 /* -------- Socket interface ---------- */
289 static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba)
293 sk_for_each(sk, &sco_sk_list.head) {
294 if (sk->sk_state != BT_LISTEN)
297 if (!bacmp(&sco_pi(sk)->src, ba))
304 /* Find socket listening on source bdaddr.
305 * Returns closest match.
307 static struct sock *sco_get_sock_listen(bdaddr_t *src)
309 struct sock *sk = NULL, *sk1 = NULL;
311 read_lock(&sco_sk_list.lock);
313 sk_for_each(sk, &sco_sk_list.head) {
314 if (sk->sk_state != BT_LISTEN)
318 if (!bacmp(&sco_pi(sk)->src, src))
322 if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY))
326 read_unlock(&sco_sk_list.lock);
328 return sk ? sk : sk1;
331 static void sco_sock_destruct(struct sock *sk)
335 skb_queue_purge(&sk->sk_receive_queue);
336 skb_queue_purge(&sk->sk_write_queue);
339 static void sco_sock_cleanup_listen(struct sock *parent)
343 BT_DBG("parent %p", parent);
345 /* Close not yet accepted channels */
346 while ((sk = bt_accept_dequeue(parent, NULL))) {
351 parent->sk_state = BT_CLOSED;
352 sock_set_flag(parent, SOCK_ZAPPED);
355 /* Kill socket (only if zapped and orphan)
356 * Must be called on unlocked socket.
358 static void sco_sock_kill(struct sock *sk)
360 if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket)
363 BT_DBG("sk %p state %d", sk, sk->sk_state);
365 /* Kill poor orphan */
366 bt_sock_unlink(&sco_sk_list, sk);
367 sock_set_flag(sk, SOCK_DEAD);
371 static void __sco_sock_close(struct sock *sk)
373 BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
375 switch (sk->sk_state) {
377 sco_sock_cleanup_listen(sk);
382 if (sco_pi(sk)->conn->hcon) {
383 sk->sk_state = BT_DISCONN;
384 sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT);
385 hci_conn_drop(sco_pi(sk)->conn->hcon);
386 sco_pi(sk)->conn->hcon = NULL;
388 sco_chan_del(sk, ECONNRESET);
394 sco_chan_del(sk, ECONNRESET);
398 sock_set_flag(sk, SOCK_ZAPPED);
403 /* Must be called on unlocked socket. */
404 static void sco_sock_close(struct sock *sk)
406 sco_sock_clear_timer(sk);
408 __sco_sock_close(sk);
413 static void sco_sock_init(struct sock *sk, struct sock *parent)
418 sk->sk_type = parent->sk_type;
419 bt_sk(sk)->flags = bt_sk(parent)->flags;
420 security_sk_clone(parent, sk);
424 static struct proto sco_proto = {
426 .owner = THIS_MODULE,
427 .obj_size = sizeof(struct sco_pinfo)
430 static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
434 sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto);
438 sock_init_data(sock, sk);
439 INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
441 sk->sk_destruct = sco_sock_destruct;
442 sk->sk_sndtimeo = SCO_CONN_TIMEOUT;
444 sock_reset_flag(sk, SOCK_ZAPPED);
446 sk->sk_protocol = proto;
447 sk->sk_state = BT_OPEN;
449 sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;
451 setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk);
453 bt_sock_link(&sco_sk_list, sk);
457 static int sco_sock_create(struct net *net, struct socket *sock, int protocol,
462 BT_DBG("sock %p", sock);
464 sock->state = SS_UNCONNECTED;
466 if (sock->type != SOCK_SEQPACKET)
467 return -ESOCKTNOSUPPORT;
469 sock->ops = &sco_sock_ops;
471 sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC);
475 sco_sock_init(sk, NULL);
479 static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
481 struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
482 struct sock *sk = sock->sk;
485 BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);
487 if (!addr || addr->sa_family != AF_BLUETOOTH)
492 if (sk->sk_state != BT_OPEN) {
497 if (sk->sk_type != SOCK_SEQPACKET) {
502 bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr);
504 sk->sk_state = BT_BOUND;
511 static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
513 struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
514 struct sock *sk = sock->sk;
519 if (alen < sizeof(struct sockaddr_sco) ||
520 addr->sa_family != AF_BLUETOOTH)
523 if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)
526 if (sk->sk_type != SOCK_SEQPACKET)
531 /* Set destination address and psm */
532 bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr);
534 err = sco_connect(sk);
538 err = bt_sock_wait_state(sk, BT_CONNECTED,
539 sock_sndtimeo(sk, flags & O_NONBLOCK));
546 static int sco_sock_listen(struct socket *sock, int backlog)
548 struct sock *sk = sock->sk;
549 bdaddr_t *src = &sco_pi(sk)->src;
552 BT_DBG("sk %p backlog %d", sk, backlog);
556 if (sk->sk_state != BT_BOUND) {
561 if (sk->sk_type != SOCK_SEQPACKET) {
566 write_lock(&sco_sk_list.lock);
568 if (__sco_get_sock_listen_by_addr(src)) {
573 sk->sk_max_ack_backlog = backlog;
574 sk->sk_ack_backlog = 0;
576 sk->sk_state = BT_LISTEN;
579 write_unlock(&sco_sk_list.lock);
586 static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags)
588 DECLARE_WAITQUEUE(wait, current);
589 struct sock *sk = sock->sk, *ch;
595 timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
597 BT_DBG("sk %p timeo %ld", sk, timeo);
599 /* Wait for an incoming connection. (wake-one). */
600 add_wait_queue_exclusive(sk_sleep(sk), &wait);
602 set_current_state(TASK_INTERRUPTIBLE);
604 if (sk->sk_state != BT_LISTEN) {
609 ch = bt_accept_dequeue(sk, newsock);
618 if (signal_pending(current)) {
619 err = sock_intr_errno(timeo);
624 timeo = schedule_timeout(timeo);
627 __set_current_state(TASK_RUNNING);
628 remove_wait_queue(sk_sleep(sk), &wait);
633 newsock->state = SS_CONNECTED;
635 BT_DBG("new socket %p", ch);
642 static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
644 struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
645 struct sock *sk = sock->sk;
647 BT_DBG("sock %p, sk %p", sock, sk);
649 addr->sa_family = AF_BLUETOOTH;
650 *len = sizeof(struct sockaddr_sco);
653 bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst);
655 bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src);
660 static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
661 struct msghdr *msg, size_t len)
663 struct sock *sk = sock->sk;
666 BT_DBG("sock %p, sk %p", sock, sk);
668 err = sock_error(sk);
672 if (msg->msg_flags & MSG_OOB)
677 if (sk->sk_state == BT_CONNECTED)
678 err = sco_send_frame(sk, msg, len);
686 static void sco_conn_defer_accept(struct hci_conn *conn, u16 setting)
688 struct hci_dev *hdev = conn->hdev;
690 BT_DBG("conn %p", conn);
692 conn->state = BT_CONFIG;
694 if (!lmp_esco_capable(hdev)) {
695 struct hci_cp_accept_conn_req cp;
697 bacpy(&cp.bdaddr, &conn->dst);
698 cp.role = 0x00; /* Ignored */
700 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
702 struct hci_cp_accept_sync_conn_req cp;
704 bacpy(&cp.bdaddr, &conn->dst);
705 cp.pkt_type = cpu_to_le16(conn->pkt_type);
707 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
708 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
709 cp.content_format = cpu_to_le16(setting);
711 switch (setting & SCO_AIRMODE_MASK) {
712 case SCO_AIRMODE_TRANSP:
713 if (conn->pkt_type & ESCO_2EV3)
714 cp.max_latency = cpu_to_le16(0x0008);
716 cp.max_latency = cpu_to_le16(0x000D);
717 cp.retrans_effort = 0x02;
719 case SCO_AIRMODE_CVSD:
720 cp.max_latency = cpu_to_le16(0xffff);
721 cp.retrans_effort = 0xff;
725 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
730 static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
731 struct msghdr *msg, size_t len, int flags)
733 struct sock *sk = sock->sk;
734 struct sco_pinfo *pi = sco_pi(sk);
738 if (sk->sk_state == BT_CONNECT2 &&
739 test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
740 sco_conn_defer_accept(pi->conn->hcon, pi->setting);
741 sk->sk_state = BT_CONFIG;
749 return bt_sock_recvmsg(iocb, sock, msg, len, flags);
752 static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
754 struct sock *sk = sock->sk;
756 struct bt_voice voice;
766 if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
771 if (get_user(opt, (u32 __user *) optval)) {
777 set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
779 clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
783 if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND &&
784 sk->sk_state != BT_CONNECT2) {
789 voice.setting = sco_pi(sk)->setting;
791 len = min_t(unsigned int, sizeof(voice), optlen);
792 if (copy_from_user((char *) &voice, optval, len)) {
797 /* Explicitly check for these values */
798 if (voice.setting != BT_VOICE_TRANSPARENT &&
799 voice.setting != BT_VOICE_CVSD_16BIT) {
804 sco_pi(sk)->setting = voice.setting;
816 static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
818 struct sock *sk = sock->sk;
819 struct sco_options opts;
820 struct sco_conninfo cinfo;
825 if (get_user(len, optlen))
832 if (sk->sk_state != BT_CONNECTED &&
833 !(sk->sk_state == BT_CONNECT2 &&
834 test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) {
839 opts.mtu = sco_pi(sk)->conn->mtu;
841 BT_DBG("mtu %d", opts.mtu);
843 len = min_t(unsigned int, len, sizeof(opts));
844 if (copy_to_user(optval, (char *)&opts, len))
850 if (sk->sk_state != BT_CONNECTED &&
851 !(sk->sk_state == BT_CONNECT2 &&
852 test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) {
857 memset(&cinfo, 0, sizeof(cinfo));
858 cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle;
859 memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3);
861 len = min_t(unsigned int, len, sizeof(cinfo));
862 if (copy_to_user(optval, (char *)&cinfo, len))
876 static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
878 struct sock *sk = sock->sk;
880 struct bt_voice voice;
884 if (level == SOL_SCO)
885 return sco_sock_getsockopt_old(sock, optname, optval, optlen);
887 if (get_user(len, optlen))
895 if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
900 if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags),
901 (u32 __user *) optval))
907 voice.setting = sco_pi(sk)->setting;
909 len = min_t(unsigned int, len, sizeof(voice));
910 if (copy_to_user(optval, (char *)&voice, len))
924 static int sco_sock_shutdown(struct socket *sock, int how)
926 struct sock *sk = sock->sk;
929 BT_DBG("sock %p, sk %p", sock, sk);
935 if (!sk->sk_shutdown) {
936 sk->sk_shutdown = SHUTDOWN_MASK;
937 sco_sock_clear_timer(sk);
938 __sco_sock_close(sk);
940 if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
941 err = bt_sock_wait_state(sk, BT_CLOSED,
948 static int sco_sock_release(struct socket *sock)
950 struct sock *sk = sock->sk;
953 BT_DBG("sock %p, sk %p", sock, sk);
960 if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) {
962 err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
971 static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
973 BT_DBG("conn %p", conn);
975 sco_pi(sk)->conn = conn;
979 bt_accept_enqueue(parent, sk);
983 * Must be called on the locked socket. */
984 static void sco_chan_del(struct sock *sk, int err)
986 struct sco_conn *conn;
988 conn = sco_pi(sk)->conn;
990 BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
995 sco_pi(sk)->conn = NULL;
996 sco_conn_unlock(conn);
999 hci_conn_drop(conn->hcon);
1002 sk->sk_state = BT_CLOSED;
1004 sk->sk_state_change(sk);
1006 sock_set_flag(sk, SOCK_ZAPPED);
1009 static void sco_conn_ready(struct sco_conn *conn)
1011 struct sock *parent;
1012 struct sock *sk = conn->sk;
1014 BT_DBG("conn %p", conn);
1017 sco_sock_clear_timer(sk);
1019 sk->sk_state = BT_CONNECTED;
1020 sk->sk_state_change(sk);
1023 sco_conn_lock(conn);
1025 parent = sco_get_sock_listen(&conn->hcon->src);
1027 sco_conn_unlock(conn);
1031 bh_lock_sock(parent);
1033 sk = sco_sock_alloc(sock_net(parent), NULL,
1034 BTPROTO_SCO, GFP_ATOMIC);
1036 bh_unlock_sock(parent);
1037 sco_conn_unlock(conn);
1041 sco_sock_init(sk, parent);
1043 bacpy(&sco_pi(sk)->src, &conn->hcon->src);
1044 bacpy(&sco_pi(sk)->dst, &conn->hcon->dst);
1046 hci_conn_hold(conn->hcon);
1047 __sco_chan_add(conn, sk, parent);
1049 if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags))
1050 sk->sk_state = BT_CONNECT2;
1052 sk->sk_state = BT_CONNECTED;
1054 /* Wake up parent */
1055 parent->sk_data_ready(parent);
1057 bh_unlock_sock(parent);
1059 sco_conn_unlock(conn);
1063 /* ----- SCO interface with lower layer (HCI) ----- */
1064 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
1069 BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr);
1071 /* Find listening sockets */
1072 read_lock(&sco_sk_list.lock);
1073 sk_for_each(sk, &sco_sk_list.head) {
1074 if (sk->sk_state != BT_LISTEN)
1077 if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) ||
1078 !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) {
1079 lm |= HCI_LM_ACCEPT;
1081 if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))
1082 *flags |= HCI_PROTO_DEFER;
1086 read_unlock(&sco_sk_list.lock);
1091 void sco_connect_cfm(struct hci_conn *hcon, __u8 status)
1093 BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status);
1095 struct sco_conn *conn;
1097 conn = sco_conn_add(hcon);
1099 sco_conn_ready(conn);
1101 sco_conn_del(hcon, bt_to_errno(status));
1104 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
1106 BT_DBG("hcon %p reason %d", hcon, reason);
1108 sco_conn_del(hcon, bt_to_errno(reason));
1111 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
1113 struct sco_conn *conn = hcon->sco_data;
1118 BT_DBG("conn %p len %d", conn, skb->len);
1121 sco_recv_frame(conn, skb);
1130 static int sco_debugfs_show(struct seq_file *f, void *p)
1134 read_lock(&sco_sk_list.lock);
1136 sk_for_each(sk, &sco_sk_list.head) {
1137 seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src,
1138 &sco_pi(sk)->dst, sk->sk_state);
1141 read_unlock(&sco_sk_list.lock);
1146 static int sco_debugfs_open(struct inode *inode, struct file *file)
1148 return single_open(file, sco_debugfs_show, inode->i_private);
1151 static const struct file_operations sco_debugfs_fops = {
1152 .open = sco_debugfs_open,
1154 .llseek = seq_lseek,
1155 .release = single_release,
1158 static struct dentry *sco_debugfs;
1160 static const struct proto_ops sco_sock_ops = {
1161 .family = PF_BLUETOOTH,
1162 .owner = THIS_MODULE,
1163 .release = sco_sock_release,
1164 .bind = sco_sock_bind,
1165 .connect = sco_sock_connect,
1166 .listen = sco_sock_listen,
1167 .accept = sco_sock_accept,
1168 .getname = sco_sock_getname,
1169 .sendmsg = sco_sock_sendmsg,
1170 .recvmsg = sco_sock_recvmsg,
1171 .poll = bt_sock_poll,
1172 .ioctl = bt_sock_ioctl,
1173 .mmap = sock_no_mmap,
1174 .socketpair = sock_no_socketpair,
1175 .shutdown = sco_sock_shutdown,
1176 .setsockopt = sco_sock_setsockopt,
1177 .getsockopt = sco_sock_getsockopt
1180 static const struct net_proto_family sco_sock_family_ops = {
1181 .family = PF_BLUETOOTH,
1182 .owner = THIS_MODULE,
1183 .create = sco_sock_create,
1186 int __init sco_init(void)
1190 err = proto_register(&sco_proto, 0);
1194 err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops);
1196 BT_ERR("SCO socket registration failed");
1200 err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL);
1202 BT_ERR("Failed to create SCO proc file");
1203 bt_sock_unregister(BTPROTO_SCO);
1207 BT_INFO("SCO socket layer initialized");
1209 if (IS_ERR_OR_NULL(bt_debugfs))
1212 sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs,
1213 NULL, &sco_debugfs_fops);
1218 proto_unregister(&sco_proto);
1222 void __exit sco_exit(void)
1224 bt_procfs_cleanup(&init_net, "sco");
1226 debugfs_remove(sco_debugfs);
1228 bt_sock_unregister(BTPROTO_SCO);
1230 proto_unregister(&sco_proto);
1233 module_param(disable_esco, bool, 0644);
1234 MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation");