2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4 Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org>
5 Copyright (C) 2010 Google Inc.
7 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License version 2 as
11 published by the Free Software Foundation;
13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
14 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
16 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
17 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
18 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
23 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
24 SOFTWARE IS DISCLAIMED.
27 /* Bluetooth L2CAP sockets. */
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31 #include <net/bluetooth/l2cap.h>
32 #include <net/bluetooth/smp.h>
34 static const struct proto_ops l2cap_sock_ops;
35 static void l2cap_sock_init(struct sock *sk, struct sock *parent);
36 static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio);
38 static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
40 struct sock *sk = sock->sk;
41 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
42 struct sockaddr_l2 la;
47 if (!addr || addr->sa_family != AF_BLUETOOTH)
50 memset(&la, 0, sizeof(la));
51 len = min_t(unsigned int, sizeof(la), alen);
52 memcpy(&la, addr, len);
54 if (la.l2_cid && la.l2_psm)
59 if (sk->sk_state != BT_OPEN) {
65 __u16 psm = __le16_to_cpu(la.l2_psm);
67 /* PSM must be odd and lsb of upper byte must be 0 */
68 if ((psm & 0x0101) != 0x0001) {
73 /* Restrict usage of well-known PSMs */
74 if (psm < 0x1001 && !capable(CAP_NET_BIND_SERVICE)) {
81 err = l2cap_add_scid(chan, la.l2_cid);
83 err = l2cap_add_psm(chan, &la.l2_bdaddr, la.l2_psm);
88 if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
89 __le16_to_cpu(la.l2_psm) == 0x0003)
90 chan->sec_level = BT_SECURITY_SDP;
92 bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
94 chan->state = BT_BOUND;
95 sk->sk_state = BT_BOUND;
102 static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
104 struct sock *sk = sock->sk;
105 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
106 struct sockaddr_l2 la;
111 if (!addr || alen < sizeof(addr->sa_family) ||
112 addr->sa_family != AF_BLUETOOTH)
115 memset(&la, 0, sizeof(la));
116 len = min_t(unsigned int, sizeof(la), alen);
117 memcpy(&la, addr, len);
119 if (la.l2_cid && la.l2_psm)
124 if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED
125 && !(la.l2_psm || la.l2_cid)) {
130 switch (chan->mode) {
131 case L2CAP_MODE_BASIC:
133 case L2CAP_MODE_ERTM:
134 case L2CAP_MODE_STREAMING:
143 switch (sk->sk_state) {
147 /* Already connecting */
151 /* Already connected */
165 /* PSM must be odd and lsb of upper byte must be 0 */
166 if ((__le16_to_cpu(la.l2_psm) & 0x0101) != 0x0001 && !la.l2_cid &&
167 chan->chan_type != L2CAP_CHAN_RAW) {
172 /* Set destination address and psm */
173 bacpy(&bt_sk(sk)->dst, &la.l2_bdaddr);
174 chan->psm = la.l2_psm;
175 chan->dcid = la.l2_cid;
177 err = l2cap_chan_connect(l2cap_pi(sk)->chan);
182 err = bt_sock_wait_state(sk, BT_CONNECTED,
183 sock_sndtimeo(sk, flags & O_NONBLOCK));
189 static int l2cap_sock_listen(struct socket *sock, int backlog)
191 struct sock *sk = sock->sk;
192 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
195 BT_DBG("sk %p backlog %d", sk, backlog);
199 if ((sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM)
200 || sk->sk_state != BT_BOUND) {
205 switch (chan->mode) {
206 case L2CAP_MODE_BASIC:
208 case L2CAP_MODE_ERTM:
209 case L2CAP_MODE_STREAMING:
218 sk->sk_max_ack_backlog = backlog;
219 sk->sk_ack_backlog = 0;
221 chan->state = BT_LISTEN;
222 sk->sk_state = BT_LISTEN;
229 static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int flags)
231 DECLARE_WAITQUEUE(wait, current);
232 struct sock *sk = sock->sk, *nsk;
236 lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
238 timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
240 BT_DBG("sk %p timeo %ld", sk, timeo);
242 /* Wait for an incoming connection. (wake-one). */
243 add_wait_queue_exclusive(sk_sleep(sk), &wait);
245 set_current_state(TASK_INTERRUPTIBLE);
247 if (sk->sk_state != BT_LISTEN) {
252 nsk = bt_accept_dequeue(sk, newsock);
261 if (signal_pending(current)) {
262 err = sock_intr_errno(timeo);
267 timeo = schedule_timeout(timeo);
268 lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
270 __set_current_state(TASK_RUNNING);
271 remove_wait_queue(sk_sleep(sk), &wait);
276 newsock->state = SS_CONNECTED;
278 BT_DBG("new socket %p", nsk);
285 static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
287 struct sockaddr_l2 *la = (struct sockaddr_l2 *) addr;
288 struct sock *sk = sock->sk;
289 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
291 BT_DBG("sock %p, sk %p", sock, sk);
293 addr->sa_family = AF_BLUETOOTH;
294 *len = sizeof(struct sockaddr_l2);
297 la->l2_psm = chan->psm;
298 bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
299 la->l2_cid = cpu_to_le16(chan->dcid);
301 la->l2_psm = chan->sport;
302 bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
303 la->l2_cid = cpu_to_le16(chan->scid);
309 static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
311 struct sock *sk = sock->sk;
312 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
313 struct l2cap_options opts;
314 struct l2cap_conninfo cinfo;
320 if (get_user(len, optlen))
327 memset(&opts, 0, sizeof(opts));
328 opts.imtu = chan->imtu;
329 opts.omtu = chan->omtu;
330 opts.flush_to = chan->flush_to;
331 opts.mode = chan->mode;
332 opts.fcs = chan->fcs;
333 opts.max_tx = chan->max_tx;
334 opts.txwin_size = (__u16)chan->tx_win;
336 len = min_t(unsigned int, len, sizeof(opts));
337 if (copy_to_user(optval, (char *) &opts, len))
343 switch (chan->sec_level) {
344 case BT_SECURITY_LOW:
347 case BT_SECURITY_MEDIUM:
348 opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT;
350 case BT_SECURITY_HIGH:
351 opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT |
359 if (chan->role_switch)
360 opt |= L2CAP_LM_MASTER;
362 if (test_bit(FLAG_FORCE_RELIABLE, &chan->flags))
363 opt |= L2CAP_LM_RELIABLE;
365 if (put_user(opt, (u32 __user *) optval))
370 if (sk->sk_state != BT_CONNECTED &&
371 !(sk->sk_state == BT_CONNECT2 &&
372 bt_sk(sk)->defer_setup)) {
377 memset(&cinfo, 0, sizeof(cinfo));
378 cinfo.hci_handle = chan->conn->hcon->handle;
379 memcpy(cinfo.dev_class, chan->conn->hcon->dev_class, 3);
381 len = min_t(unsigned int, len, sizeof(cinfo));
382 if (copy_to_user(optval, (char *) &cinfo, len))
396 static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
398 struct sock *sk = sock->sk;
399 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
400 struct bt_security sec;
406 if (level == SOL_L2CAP)
407 return l2cap_sock_getsockopt_old(sock, optname, optval, optlen);
409 if (level != SOL_BLUETOOTH)
412 if (get_user(len, optlen))
419 if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
420 chan->chan_type != L2CAP_CHAN_RAW) {
425 memset(&sec, 0, sizeof(sec));
426 sec.level = chan->sec_level;
428 if (sk->sk_state == BT_CONNECTED)
429 sec.key_size = chan->conn->hcon->enc_key_size;
431 len = min_t(unsigned int, len, sizeof(sec));
432 if (copy_to_user(optval, (char *) &sec, len))
438 if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
443 if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
449 if (put_user(test_bit(FLAG_FLUSHABLE, &chan->flags),
450 (u32 __user *) optval))
456 if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
457 && sk->sk_type != SOCK_RAW) {
462 pwr.force_active = chan->force_active;
464 len = min_t(unsigned int, len, sizeof(pwr));
465 if (copy_to_user(optval, (char *) &pwr, len))
479 static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
481 struct sock *sk = sock->sk;
482 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
483 struct l2cap_options opts;
493 if (sk->sk_state == BT_CONNECTED) {
498 opts.imtu = chan->imtu;
499 opts.omtu = chan->omtu;
500 opts.flush_to = chan->flush_to;
501 opts.mode = chan->mode;
502 opts.fcs = chan->fcs;
503 opts.max_tx = chan->max_tx;
504 opts.txwin_size = (__u16)chan->tx_win;
506 len = min_t(unsigned int, sizeof(opts), optlen);
507 if (copy_from_user((char *) &opts, optval, len)) {
512 if (opts.txwin_size > L2CAP_DEFAULT_TX_WINDOW) {
517 chan->mode = opts.mode;
518 switch (chan->mode) {
519 case L2CAP_MODE_BASIC:
520 clear_bit(CONF_STATE2_DEVICE, &chan->conf_state);
522 case L2CAP_MODE_ERTM:
523 case L2CAP_MODE_STREAMING:
532 chan->imtu = opts.imtu;
533 chan->omtu = opts.omtu;
534 chan->fcs = opts.fcs;
535 chan->max_tx = opts.max_tx;
536 chan->tx_win = (__u8)opts.txwin_size;
540 if (get_user(opt, (u32 __user *) optval)) {
545 if (opt & L2CAP_LM_AUTH)
546 chan->sec_level = BT_SECURITY_LOW;
547 if (opt & L2CAP_LM_ENCRYPT)
548 chan->sec_level = BT_SECURITY_MEDIUM;
549 if (opt & L2CAP_LM_SECURE)
550 chan->sec_level = BT_SECURITY_HIGH;
552 chan->role_switch = (opt & L2CAP_LM_MASTER);
554 if (opt & L2CAP_LM_RELIABLE)
555 set_bit(FLAG_FORCE_RELIABLE, &chan->flags);
557 clear_bit(FLAG_FORCE_RELIABLE, &chan->flags);
569 static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
571 struct sock *sk = sock->sk;
572 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
573 struct bt_security sec;
575 struct l2cap_conn *conn;
581 if (level == SOL_L2CAP)
582 return l2cap_sock_setsockopt_old(sock, optname, optval, optlen);
584 if (level != SOL_BLUETOOTH)
591 if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
592 chan->chan_type != L2CAP_CHAN_RAW) {
597 sec.level = BT_SECURITY_LOW;
599 len = min_t(unsigned int, sizeof(sec), optlen);
600 if (copy_from_user((char *) &sec, optval, len)) {
605 if (sec.level < BT_SECURITY_LOW ||
606 sec.level > BT_SECURITY_HIGH) {
611 chan->sec_level = sec.level;
614 if (conn && chan->scid == L2CAP_CID_LE_DATA) {
615 if (!conn->hcon->out) {
620 if (smp_conn_security(conn, sec.level))
624 sk->sk_state = BT_CONFIG;
629 if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
634 if (get_user(opt, (u32 __user *) optval)) {
639 bt_sk(sk)->defer_setup = opt;
643 if (get_user(opt, (u32 __user *) optval)) {
648 if (opt > BT_FLUSHABLE_ON) {
653 if (opt == BT_FLUSHABLE_OFF) {
654 struct l2cap_conn *conn = chan->conn;
655 /* proceed further only when we have l2cap_conn and
656 No Flush support in the LM */
657 if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
664 set_bit(FLAG_FLUSHABLE, &chan->flags);
666 clear_bit(FLAG_FLUSHABLE, &chan->flags);
670 if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
671 chan->chan_type != L2CAP_CHAN_RAW) {
676 pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
678 len = min_t(unsigned int, sizeof(pwr), optlen);
679 if (copy_from_user((char *) &pwr, optval, len)) {
683 chan->force_active = pwr.force_active;
695 static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len)
697 struct sock *sk = sock->sk;
698 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
701 BT_DBG("sock %p, sk %p", sock, sk);
703 err = sock_error(sk);
707 if (msg->msg_flags & MSG_OOB)
712 if (sk->sk_state != BT_CONNECTED) {
717 err = l2cap_chan_send(chan, msg, len);
723 static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags)
725 struct sock *sk = sock->sk;
726 struct l2cap_pinfo *pi = l2cap_pi(sk);
731 if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) {
732 sk->sk_state = BT_CONFIG;
734 __l2cap_connect_rsp_defer(pi->chan);
741 if (sock->type == SOCK_STREAM)
742 err = bt_sock_stream_recvmsg(iocb, sock, msg, len, flags);
744 err = bt_sock_recvmsg(iocb, sock, msg, len, flags);
746 if (pi->chan->mode != L2CAP_MODE_ERTM)
749 /* Attempt to put pending rx data in the socket buffer */
753 if (!test_bit(CONN_LOCAL_BUSY, &pi->chan->conn_state))
756 if (pi->rx_busy_skb) {
757 if (!sock_queue_rcv_skb(sk, pi->rx_busy_skb))
758 pi->rx_busy_skb = NULL;
763 /* Restore data flow when half of the receive buffer is
764 * available. This avoids resending large numbers of
767 if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf >> 1)
768 l2cap_chan_busy(pi->chan, 0);
775 /* Kill socket (only if zapped and orphan)
776 * Must be called on unlocked socket.
778 static void l2cap_sock_kill(struct sock *sk)
780 if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket)
783 BT_DBG("sk %p state %d", sk, sk->sk_state);
785 /* Kill poor orphan */
787 l2cap_chan_destroy(l2cap_pi(sk)->chan);
788 sock_set_flag(sk, SOCK_DEAD);
792 static int l2cap_sock_shutdown(struct socket *sock, int how)
794 struct sock *sk = sock->sk;
795 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
798 BT_DBG("sock %p, sk %p", sock, sk);
804 if (!sk->sk_shutdown) {
805 if (chan->mode == L2CAP_MODE_ERTM)
806 err = __l2cap_wait_ack(sk);
808 sk->sk_shutdown = SHUTDOWN_MASK;
809 l2cap_chan_close(chan, 0);
811 if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
812 err = bt_sock_wait_state(sk, BT_CLOSED,
816 if (!err && sk->sk_err)
823 static int l2cap_sock_release(struct socket *sock)
825 struct sock *sk = sock->sk;
828 BT_DBG("sock %p, sk %p", sock, sk);
833 err = l2cap_sock_shutdown(sock, 2);
840 static struct l2cap_chan *l2cap_sock_new_connection_cb(void *data)
842 struct sock *sk, *parent = data;
844 sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
849 l2cap_sock_init(sk, parent);
851 return l2cap_pi(sk)->chan;
854 static int l2cap_sock_recv_cb(void *data, struct sk_buff *skb)
857 struct sock *sk = data;
858 struct l2cap_pinfo *pi = l2cap_pi(sk);
863 err = sock_queue_rcv_skb(sk, skb);
865 /* For ERTM, handle one skb that doesn't fit into the recv
866 * buffer. This is important to do because the data frames
867 * have already been acked, so the skb cannot be discarded.
869 * Notify the l2cap core that the buffer is full, so the
870 * LOCAL_BUSY state is entered and no more frames are
871 * acked and reassembled until there is buffer space
874 if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) {
875 pi->rx_busy_skb = skb;
876 l2cap_chan_busy(pi->chan, 1);
883 static void l2cap_sock_close_cb(void *data)
885 struct sock *sk = data;
890 static void l2cap_sock_state_change_cb(void *data, int state)
892 struct sock *sk = data;
894 sk->sk_state = state;
897 static struct l2cap_ops l2cap_chan_ops = {
898 .name = "L2CAP Socket Interface",
899 .new_connection = l2cap_sock_new_connection_cb,
900 .recv = l2cap_sock_recv_cb,
901 .close = l2cap_sock_close_cb,
902 .state_change = l2cap_sock_state_change_cb,
905 static void l2cap_sock_destruct(struct sock *sk)
909 if (l2cap_pi(sk)->rx_busy_skb) {
910 kfree_skb(l2cap_pi(sk)->rx_busy_skb);
911 l2cap_pi(sk)->rx_busy_skb = NULL;
914 skb_queue_purge(&sk->sk_receive_queue);
915 skb_queue_purge(&sk->sk_write_queue);
918 static void l2cap_sock_init(struct sock *sk, struct sock *parent)
920 struct l2cap_pinfo *pi = l2cap_pi(sk);
921 struct l2cap_chan *chan = pi->chan;
926 struct l2cap_chan *pchan = l2cap_pi(parent)->chan;
928 sk->sk_type = parent->sk_type;
929 bt_sk(sk)->defer_setup = bt_sk(parent)->defer_setup;
931 chan->chan_type = pchan->chan_type;
932 chan->imtu = pchan->imtu;
933 chan->omtu = pchan->omtu;
934 chan->conf_state = pchan->conf_state;
935 chan->mode = pchan->mode;
936 chan->fcs = pchan->fcs;
937 chan->max_tx = pchan->max_tx;
938 chan->tx_win = pchan->tx_win;
939 chan->sec_level = pchan->sec_level;
940 chan->role_switch = pchan->role_switch;
941 chan->flags = pchan->flags;
942 chan->force_active = pchan->force_active;
945 switch (sk->sk_type) {
947 chan->chan_type = L2CAP_CHAN_RAW;
950 chan->chan_type = L2CAP_CHAN_CONN_LESS;
954 chan->chan_type = L2CAP_CHAN_CONN_ORIENTED;
958 chan->imtu = L2CAP_DEFAULT_MTU;
960 if (!disable_ertm && sk->sk_type == SOCK_STREAM) {
961 chan->mode = L2CAP_MODE_ERTM;
962 set_bit(CONF_STATE2_DEVICE, &chan->conf_state);
964 chan->mode = L2CAP_MODE_BASIC;
966 chan->max_tx = L2CAP_DEFAULT_MAX_TX;
967 chan->fcs = L2CAP_FCS_CRC16;
968 chan->tx_win = L2CAP_DEFAULT_TX_WINDOW;
969 chan->sec_level = BT_SECURITY_LOW;
970 chan->role_switch = 0;
972 chan->force_active = BT_POWER_FORCE_ACTIVE_ON;
976 /* Default config options */
977 chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
980 chan->ops = &l2cap_chan_ops;
983 static struct proto l2cap_proto = {
985 .owner = THIS_MODULE,
986 .obj_size = sizeof(struct l2cap_pinfo)
989 static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
992 struct l2cap_chan *chan;
994 sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto);
998 sock_init_data(sock, sk);
999 INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
1001 sk->sk_destruct = l2cap_sock_destruct;
1002 sk->sk_sndtimeo = L2CAP_CONN_TIMEOUT;
1004 sock_reset_flag(sk, SOCK_ZAPPED);
1006 sk->sk_protocol = proto;
1007 sk->sk_state = BT_OPEN;
1009 chan = l2cap_chan_create(sk);
1011 l2cap_sock_kill(sk);
1015 l2cap_pi(sk)->chan = chan;
1020 static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol,
1025 BT_DBG("sock %p", sock);
1027 sock->state = SS_UNCONNECTED;
1029 if (sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM &&
1030 sock->type != SOCK_DGRAM && sock->type != SOCK_RAW)
1031 return -ESOCKTNOSUPPORT;
1033 if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
1036 sock->ops = &l2cap_sock_ops;
1038 sk = l2cap_sock_alloc(net, sock, protocol, GFP_ATOMIC);
1042 l2cap_sock_init(sk, NULL);
1046 static const struct proto_ops l2cap_sock_ops = {
1047 .family = PF_BLUETOOTH,
1048 .owner = THIS_MODULE,
1049 .release = l2cap_sock_release,
1050 .bind = l2cap_sock_bind,
1051 .connect = l2cap_sock_connect,
1052 .listen = l2cap_sock_listen,
1053 .accept = l2cap_sock_accept,
1054 .getname = l2cap_sock_getname,
1055 .sendmsg = l2cap_sock_sendmsg,
1056 .recvmsg = l2cap_sock_recvmsg,
1057 .poll = bt_sock_poll,
1058 .ioctl = bt_sock_ioctl,
1059 .mmap = sock_no_mmap,
1060 .socketpair = sock_no_socketpair,
1061 .shutdown = l2cap_sock_shutdown,
1062 .setsockopt = l2cap_sock_setsockopt,
1063 .getsockopt = l2cap_sock_getsockopt
1066 static const struct net_proto_family l2cap_sock_family_ops = {
1067 .family = PF_BLUETOOTH,
1068 .owner = THIS_MODULE,
1069 .create = l2cap_sock_create,
1072 int __init l2cap_init_sockets(void)
1076 err = proto_register(&l2cap_proto, 0);
1080 err = bt_sock_register(BTPROTO_L2CAP, &l2cap_sock_family_ops);
1084 BT_INFO("L2CAP socket layer initialized");
1089 BT_ERR("L2CAP socket registration failed");
1090 proto_unregister(&l2cap_proto);
1094 void l2cap_cleanup_sockets(void)
1096 if (bt_sock_unregister(BTPROTO_L2CAP) < 0)
1097 BT_ERR("L2CAP socket unregistration failed");
1099 proto_unregister(&l2cap_proto);