2 RFCOMM implementation for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
4 Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License version 2 as
8 published by the Free Software Foundation;
10 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
11 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
12 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
13 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
14 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
15 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
20 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
21 SOFTWARE IS DISCLAIMED.
27 * $Id: sock.c,v 1.24 2002/10/03 01:00:34 maxk Exp $
30 #include <linux/config.h>
31 #include <linux/module.h>
33 #include <linux/types.h>
34 #include <linux/errno.h>
35 #include <linux/kernel.h>
36 #include <linux/major.h>
37 #include <linux/sched.h>
38 #include <linux/slab.h>
39 #include <linux/poll.h>
40 #include <linux/fcntl.h>
41 #include <linux/init.h>
42 #include <linux/interrupt.h>
43 #include <linux/socket.h>
44 #include <linux/skbuff.h>
45 #include <linux/list.h>
46 #include <linux/proc_fs.h>
47 #include <linux/seq_file.h>
50 #include <asm/system.h>
51 #include <asm/uaccess.h>
53 #include <net/bluetooth/bluetooth.h>
54 #include <net/bluetooth/hci_core.h>
55 #include <net/bluetooth/l2cap.h>
56 #include <net/bluetooth/rfcomm.h>
58 #ifndef CONFIG_BT_RFCOMM_DEBUG
63 static struct proto_ops rfcomm_sock_ops
;
65 static struct bt_sock_list rfcomm_sk_list
= {
66 .lock
= RW_LOCK_UNLOCKED
69 static void rfcomm_sock_close(struct sock
*sk
);
70 static void rfcomm_sock_kill(struct sock
*sk
);
72 /* ---- DLC callbacks ----
74 * called under rfcomm_dlc_lock()
76 static void rfcomm_sk_data_ready(struct rfcomm_dlc
*d
, struct sk_buff
*skb
)
78 struct sock
*sk
= d
->owner
;
82 atomic_add(skb
->len
, &sk
->sk_rmem_alloc
);
83 skb_queue_tail(&sk
->sk_receive_queue
, skb
);
84 sk
->sk_data_ready(sk
, skb
->len
);
86 if (atomic_read(&sk
->sk_rmem_alloc
) >= sk
->sk_rcvbuf
)
87 rfcomm_dlc_throttle(d
);
90 static void rfcomm_sk_state_change(struct rfcomm_dlc
*d
, int err
)
92 struct sock
*sk
= d
->owner
, *parent
;
96 BT_DBG("dlc %p state %ld err %d", d
, d
->state
, err
);
103 sk
->sk_state
= d
->state
;
105 parent
= bt_sk(sk
)->parent
;
107 if (d
->state
== BT_CLOSED
) {
108 sock_set_flag(sk
, SOCK_ZAPPED
);
109 bt_accept_unlink(sk
);
111 parent
->sk_data_ready(parent
, 0);
113 if (d
->state
== BT_CONNECTED
)
114 rfcomm_session_getaddr(d
->session
, &bt_sk(sk
)->src
, NULL
);
115 sk
->sk_state_change(sk
);
120 if (parent
&& sock_flag(sk
, SOCK_ZAPPED
)) {
121 /* We have to drop DLC lock here, otherwise
122 * rfcomm_sock_destruct() will dead lock. */
123 rfcomm_dlc_unlock(d
);
124 rfcomm_sock_kill(sk
);
129 /* ---- Socket functions ---- */
130 static struct sock
*__rfcomm_get_sock_by_addr(u8 channel
, bdaddr_t
*src
)
132 struct sock
*sk
= NULL
;
133 struct hlist_node
*node
;
135 sk_for_each(sk
, node
, &rfcomm_sk_list
.head
) {
136 if (rfcomm_pi(sk
)->channel
== channel
&&
137 !bacmp(&bt_sk(sk
)->src
, src
))
141 return node
? sk
: NULL
;
144 /* Find socket with channel and source bdaddr.
145 * Returns closest match.
147 static struct sock
*__rfcomm_get_sock_by_channel(int state
, u8 channel
, bdaddr_t
*src
)
149 struct sock
*sk
= NULL
, *sk1
= NULL
;
150 struct hlist_node
*node
;
152 sk_for_each(sk
, node
, &rfcomm_sk_list
.head
) {
153 if (state
&& sk
->sk_state
!= state
)
156 if (rfcomm_pi(sk
)->channel
== channel
) {
158 if (!bacmp(&bt_sk(sk
)->src
, src
))
162 if (!bacmp(&bt_sk(sk
)->src
, BDADDR_ANY
))
166 return node
? sk
: sk1
;
169 /* Find socket with given address (channel, src).
170 * Returns locked socket */
171 static inline struct sock
*rfcomm_get_sock_by_channel(int state
, u8 channel
, bdaddr_t
*src
)
174 read_lock(&rfcomm_sk_list
.lock
);
175 s
= __rfcomm_get_sock_by_channel(state
, channel
, src
);
176 if (s
) bh_lock_sock(s
);
177 read_unlock(&rfcomm_sk_list
.lock
);
181 static void rfcomm_sock_destruct(struct sock
*sk
)
183 struct rfcomm_dlc
*d
= rfcomm_pi(sk
)->dlc
;
185 BT_DBG("sk %p dlc %p", sk
, d
);
187 skb_queue_purge(&sk
->sk_receive_queue
);
188 skb_queue_purge(&sk
->sk_write_queue
);
191 rfcomm_pi(sk
)->dlc
= NULL
;
193 /* Detach DLC if it's owned by this socket */
196 rfcomm_dlc_unlock(d
);
201 static void rfcomm_sock_cleanup_listen(struct sock
*parent
)
205 BT_DBG("parent %p", parent
);
207 /* Close not yet accepted dlcs */
208 while ((sk
= bt_accept_dequeue(parent
, NULL
))) {
209 rfcomm_sock_close(sk
);
210 rfcomm_sock_kill(sk
);
213 parent
->sk_state
= BT_CLOSED
;
214 sock_set_flag(parent
, SOCK_ZAPPED
);
217 /* Kill socket (only if zapped and orphan)
218 * Must be called on unlocked socket.
220 static void rfcomm_sock_kill(struct sock
*sk
)
222 if (!sock_flag(sk
, SOCK_ZAPPED
) || sk
->sk_socket
)
225 BT_DBG("sk %p state %d refcnt %d", sk
, sk
->sk_state
, atomic_read(&sk
->sk_refcnt
));
227 /* Kill poor orphan */
228 bt_sock_unlink(&rfcomm_sk_list
, sk
);
229 sock_set_flag(sk
, SOCK_DEAD
);
233 static void __rfcomm_sock_close(struct sock
*sk
)
235 struct rfcomm_dlc
*d
= rfcomm_pi(sk
)->dlc
;
237 BT_DBG("sk %p state %d socket %p", sk
, sk
->sk_state
, sk
->sk_socket
);
239 switch (sk
->sk_state
) {
241 rfcomm_sock_cleanup_listen(sk
);
248 rfcomm_dlc_close(d
, 0);
251 sock_set_flag(sk
, SOCK_ZAPPED
);
257 * Must be called on unlocked socket.
259 static void rfcomm_sock_close(struct sock
*sk
)
262 __rfcomm_sock_close(sk
);
266 static void rfcomm_sock_init(struct sock
*sk
, struct sock
*parent
)
268 struct rfcomm_pinfo
*pi
= rfcomm_pi(sk
);
273 sk
->sk_type
= parent
->sk_type
;
274 pi
->link_mode
= rfcomm_pi(parent
)->link_mode
;
279 pi
->dlc
->link_mode
= pi
->link_mode
;
282 static struct proto rfcomm_proto
= {
284 .owner
= THIS_MODULE
,
285 .obj_size
= sizeof(struct rfcomm_pinfo
)
288 static struct sock
*rfcomm_sock_alloc(struct socket
*sock
, int proto
, int prio
)
290 struct rfcomm_dlc
*d
;
293 sk
= sk_alloc(PF_BLUETOOTH
, prio
, &rfcomm_proto
, 1);
297 sock_init_data(sock
, sk
);
298 INIT_LIST_HEAD(&bt_sk(sk
)->accept_q
);
300 d
= rfcomm_dlc_alloc(prio
);
306 d
->data_ready
= rfcomm_sk_data_ready
;
307 d
->state_change
= rfcomm_sk_state_change
;
309 rfcomm_pi(sk
)->dlc
= d
;
312 sk
->sk_destruct
= rfcomm_sock_destruct
;
313 sk
->sk_sndtimeo
= RFCOMM_CONN_TIMEOUT
;
315 sk
->sk_sndbuf
= RFCOMM_MAX_CREDITS
* RFCOMM_DEFAULT_MTU
* 10;
316 sk
->sk_rcvbuf
= RFCOMM_MAX_CREDITS
* RFCOMM_DEFAULT_MTU
* 10;
318 sock_reset_flag(sk
, SOCK_ZAPPED
);
320 sk
->sk_protocol
= proto
;
321 sk
->sk_state
= BT_OPEN
;
323 bt_sock_link(&rfcomm_sk_list
, sk
);
329 static int rfcomm_sock_create(struct socket
*sock
, int protocol
)
333 BT_DBG("sock %p", sock
);
335 sock
->state
= SS_UNCONNECTED
;
337 if (sock
->type
!= SOCK_STREAM
&& sock
->type
!= SOCK_RAW
)
338 return -ESOCKTNOSUPPORT
;
340 sock
->ops
= &rfcomm_sock_ops
;
342 if (!(sk
= rfcomm_sock_alloc(sock
, protocol
, GFP_KERNEL
)))
345 rfcomm_sock_init(sk
, NULL
);
349 static int rfcomm_sock_bind(struct socket
*sock
, struct sockaddr
*addr
, int addr_len
)
351 struct sockaddr_rc
*sa
= (struct sockaddr_rc
*) addr
;
352 struct sock
*sk
= sock
->sk
;
355 BT_DBG("sk %p %s", sk
, batostr(&sa
->rc_bdaddr
));
357 if (!addr
|| addr
->sa_family
!= AF_BLUETOOTH
)
362 if (sk
->sk_state
!= BT_OPEN
) {
367 write_lock_bh(&rfcomm_sk_list
.lock
);
369 if (sa
->rc_channel
&& __rfcomm_get_sock_by_addr(sa
->rc_channel
, &sa
->rc_bdaddr
)) {
372 /* Save source address */
373 bacpy(&bt_sk(sk
)->src
, &sa
->rc_bdaddr
);
374 rfcomm_pi(sk
)->channel
= sa
->rc_channel
;
375 sk
->sk_state
= BT_BOUND
;
378 write_unlock_bh(&rfcomm_sk_list
.lock
);
385 static int rfcomm_sock_connect(struct socket
*sock
, struct sockaddr
*addr
, int alen
, int flags
)
387 struct sockaddr_rc
*sa
= (struct sockaddr_rc
*) addr
;
388 struct sock
*sk
= sock
->sk
;
389 struct rfcomm_dlc
*d
= rfcomm_pi(sk
)->dlc
;
394 if (addr
->sa_family
!= AF_BLUETOOTH
|| alen
< sizeof(struct sockaddr_rc
))
397 if (sk
->sk_state
!= BT_OPEN
&& sk
->sk_state
!= BT_BOUND
)
400 if (sk
->sk_type
!= SOCK_STREAM
)
405 sk
->sk_state
= BT_CONNECT
;
406 bacpy(&bt_sk(sk
)->dst
, &sa
->rc_bdaddr
);
407 rfcomm_pi(sk
)->channel
= sa
->rc_channel
;
409 err
= rfcomm_dlc_open(d
, &bt_sk(sk
)->src
, &sa
->rc_bdaddr
, sa
->rc_channel
);
411 err
= bt_sock_wait_state(sk
, BT_CONNECTED
,
412 sock_sndtimeo(sk
, flags
& O_NONBLOCK
));
418 static int rfcomm_sock_listen(struct socket
*sock
, int backlog
)
420 struct sock
*sk
= sock
->sk
;
423 BT_DBG("sk %p backlog %d", sk
, backlog
);
427 if (sk
->sk_state
!= BT_BOUND
) {
432 if (!rfcomm_pi(sk
)->channel
) {
433 bdaddr_t
*src
= &bt_sk(sk
)->src
;
438 write_lock_bh(&rfcomm_sk_list
.lock
);
440 for (channel
= 1; channel
< 31; channel
++)
441 if (!__rfcomm_get_sock_by_addr(channel
, src
)) {
442 rfcomm_pi(sk
)->channel
= channel
;
447 write_unlock_bh(&rfcomm_sk_list
.lock
);
453 sk
->sk_max_ack_backlog
= backlog
;
454 sk
->sk_ack_backlog
= 0;
455 sk
->sk_state
= BT_LISTEN
;
462 static int rfcomm_sock_accept(struct socket
*sock
, struct socket
*newsock
, int flags
)
464 DECLARE_WAITQUEUE(wait
, current
);
465 struct sock
*sk
= sock
->sk
, *nsk
;
471 if (sk
->sk_state
!= BT_LISTEN
) {
476 timeo
= sock_rcvtimeo(sk
, flags
& O_NONBLOCK
);
478 BT_DBG("sk %p timeo %ld", sk
, timeo
);
480 /* Wait for an incoming connection. (wake-one). */
481 add_wait_queue_exclusive(sk
->sk_sleep
, &wait
);
482 while (!(nsk
= bt_accept_dequeue(sk
, newsock
))) {
483 set_current_state(TASK_INTERRUPTIBLE
);
490 timeo
= schedule_timeout(timeo
);
493 if (sk
->sk_state
!= BT_LISTEN
) {
498 if (signal_pending(current
)) {
499 err
= sock_intr_errno(timeo
);
503 set_current_state(TASK_RUNNING
);
504 remove_wait_queue(sk
->sk_sleep
, &wait
);
509 newsock
->state
= SS_CONNECTED
;
511 BT_DBG("new socket %p", nsk
);
518 static int rfcomm_sock_getname(struct socket
*sock
, struct sockaddr
*addr
, int *len
, int peer
)
520 struct sockaddr_rc
*sa
= (struct sockaddr_rc
*) addr
;
521 struct sock
*sk
= sock
->sk
;
523 BT_DBG("sock %p, sk %p", sock
, sk
);
525 sa
->rc_family
= AF_BLUETOOTH
;
526 sa
->rc_channel
= rfcomm_pi(sk
)->channel
;
528 bacpy(&sa
->rc_bdaddr
, &bt_sk(sk
)->dst
);
530 bacpy(&sa
->rc_bdaddr
, &bt_sk(sk
)->src
);
532 *len
= sizeof(struct sockaddr_rc
);
536 static int rfcomm_sock_sendmsg(struct kiocb
*iocb
, struct socket
*sock
,
537 struct msghdr
*msg
, size_t len
)
539 struct sock
*sk
= sock
->sk
;
540 struct rfcomm_dlc
*d
= rfcomm_pi(sk
)->dlc
;
545 if (msg
->msg_flags
& MSG_OOB
)
548 if (sk
->sk_shutdown
& SEND_SHUTDOWN
)
551 BT_DBG("sock %p, sk %p", sock
, sk
);
556 size_t size
= min_t(size_t, len
, d
->mtu
);
558 skb
= sock_alloc_send_skb(sk
, size
+ RFCOMM_SKB_RESERVE
,
559 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
562 skb_reserve(skb
, RFCOMM_SKB_HEAD_RESERVE
);
564 err
= memcpy_fromiovec(skb_put(skb
, size
), msg
->msg_iov
, size
);
571 err
= rfcomm_dlc_send(d
, skb
);
583 return sent
? sent
: err
;
586 static long rfcomm_sock_data_wait(struct sock
*sk
, long timeo
)
588 DECLARE_WAITQUEUE(wait
, current
);
590 add_wait_queue(sk
->sk_sleep
, &wait
);
592 set_current_state(TASK_INTERRUPTIBLE
);
594 if (skb_queue_len(&sk
->sk_receive_queue
) || sk
->sk_err
|| (sk
->sk_shutdown
& RCV_SHUTDOWN
) ||
595 signal_pending(current
) || !timeo
)
598 set_bit(SOCK_ASYNC_WAITDATA
, &sk
->sk_socket
->flags
);
600 timeo
= schedule_timeout(timeo
);
602 clear_bit(SOCK_ASYNC_WAITDATA
, &sk
->sk_socket
->flags
);
605 __set_current_state(TASK_RUNNING
);
606 remove_wait_queue(sk
->sk_sleep
, &wait
);
610 static int rfcomm_sock_recvmsg(struct kiocb
*iocb
, struct socket
*sock
,
611 struct msghdr
*msg
, size_t size
, int flags
)
613 struct sock
*sk
= sock
->sk
;
615 size_t target
, copied
= 0;
621 msg
->msg_namelen
= 0;
623 BT_DBG("sk %p size %d", sk
, size
);
627 target
= sock_rcvlowat(sk
, flags
& MSG_WAITALL
, size
);
628 timeo
= sock_rcvtimeo(sk
, flags
& MSG_DONTWAIT
);
634 skb
= skb_dequeue(&sk
->sk_receive_queue
);
636 if (copied
>= target
)
639 if ((err
= sock_error(sk
)) != 0)
641 if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
648 timeo
= rfcomm_sock_data_wait(sk
, timeo
);
650 if (signal_pending(current
)) {
651 err
= sock_intr_errno(timeo
);
657 chunk
= min_t(unsigned int, skb
->len
, size
);
658 if (memcpy_toiovec(msg
->msg_iov
, skb
->data
, chunk
)) {
659 skb_queue_head(&sk
->sk_receive_queue
, skb
);
667 if (!(flags
& MSG_PEEK
)) {
668 atomic_sub(chunk
, &sk
->sk_rmem_alloc
);
670 skb_pull(skb
, chunk
);
672 skb_queue_head(&sk
->sk_receive_queue
, skb
);
678 /* put message back and return */
679 skb_queue_head(&sk
->sk_receive_queue
, skb
);
685 if (atomic_read(&sk
->sk_rmem_alloc
) <= (sk
->sk_rcvbuf
>> 2))
686 rfcomm_dlc_unthrottle(rfcomm_pi(sk
)->dlc
);
689 return copied
? : err
;
692 static int rfcomm_sock_setsockopt(struct socket
*sock
, int level
, int optname
, char __user
*optval
, int optlen
)
694 struct sock
*sk
= sock
->sk
;
704 if (get_user(opt
, (u32 __user
*) optval
)) {
709 rfcomm_pi(sk
)->link_mode
= opt
;
721 static int rfcomm_sock_getsockopt(struct socket
*sock
, int level
, int optname
, char __user
*optval
, int __user
*optlen
)
723 struct sock
*sk
= sock
->sk
;
724 struct sock
*l2cap_sk
;
725 struct rfcomm_conninfo cinfo
;
730 if (get_user(len
, optlen
))
737 if (put_user(rfcomm_pi(sk
)->link_mode
, (u32 __user
*) optval
))
741 case RFCOMM_CONNINFO
:
742 if (sk
->sk_state
!= BT_CONNECTED
) {
747 l2cap_sk
= rfcomm_pi(sk
)->dlc
->session
->sock
->sk
;
749 cinfo
.hci_handle
= l2cap_pi(l2cap_sk
)->conn
->hcon
->handle
;
750 memcpy(cinfo
.dev_class
, l2cap_pi(l2cap_sk
)->conn
->hcon
->dev_class
, 3);
752 len
= min_t(unsigned int, len
, sizeof(cinfo
));
753 if (copy_to_user(optval
, (char *) &cinfo
, len
))
767 static int rfcomm_sock_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
769 struct sock
*sk
= sock
->sk
;
774 #ifdef CONFIG_BT_RFCOMM_TTY
775 err
= rfcomm_dev_ioctl(sk
, cmd
, (void __user
*)arg
);
784 static int rfcomm_sock_shutdown(struct socket
*sock
, int how
)
786 struct sock
*sk
= sock
->sk
;
789 BT_DBG("sock %p, sk %p", sock
, sk
);
794 if (!sk
->sk_shutdown
) {
795 sk
->sk_shutdown
= SHUTDOWN_MASK
;
796 __rfcomm_sock_close(sk
);
798 if (sock_flag(sk
, SOCK_LINGER
) && sk
->sk_lingertime
)
799 err
= bt_sock_wait_state(sk
, BT_CLOSED
, sk
->sk_lingertime
);
805 static int rfcomm_sock_release(struct socket
*sock
)
807 struct sock
*sk
= sock
->sk
;
810 BT_DBG("sock %p, sk %p", sock
, sk
);
815 err
= rfcomm_sock_shutdown(sock
, 2);
818 rfcomm_sock_kill(sk
);
822 /* ---- RFCOMM core layer callbacks ----
824 * called under rfcomm_lock()
826 int rfcomm_connect_ind(struct rfcomm_session
*s
, u8 channel
, struct rfcomm_dlc
**d
)
828 struct sock
*sk
, *parent
;
832 BT_DBG("session %p channel %d", s
, channel
);
834 rfcomm_session_getaddr(s
, &src
, &dst
);
836 /* Check if we have socket listening on channel */
837 parent
= rfcomm_get_sock_by_channel(BT_LISTEN
, channel
, &src
);
841 /* Check for backlog size */
842 if (sk_acceptq_is_full(parent
)) {
843 BT_DBG("backlog full %d", parent
->sk_ack_backlog
);
847 sk
= rfcomm_sock_alloc(NULL
, BTPROTO_RFCOMM
, GFP_ATOMIC
);
851 rfcomm_sock_init(sk
, parent
);
852 bacpy(&bt_sk(sk
)->src
, &src
);
853 bacpy(&bt_sk(sk
)->dst
, &dst
);
854 rfcomm_pi(sk
)->channel
= channel
;
856 sk
->sk_state
= BT_CONFIG
;
857 bt_accept_enqueue(parent
, sk
);
859 /* Accept connection and return socket DLC */
860 *d
= rfcomm_pi(sk
)->dlc
;
864 bh_unlock_sock(parent
);
868 /* ---- Proc fs support ---- */
869 #ifdef CONFIG_PROC_FS
870 static void *rfcomm_seq_start(struct seq_file
*seq
, loff_t
*pos
)
873 struct hlist_node
*node
;
876 read_lock_bh(&rfcomm_sk_list
.lock
);
878 sk_for_each(sk
, node
, &rfcomm_sk_list
.head
)
884 static void *rfcomm_seq_next(struct seq_file
*seq
, void *e
, loff_t
*pos
)
891 static void rfcomm_seq_stop(struct seq_file
*seq
, void *e
)
893 read_unlock_bh(&rfcomm_sk_list
.lock
);
896 static int rfcomm_seq_show(struct seq_file
*seq
, void *e
)
899 seq_printf(seq
, "%s %s %d %d\n",
900 batostr(&bt_sk(sk
)->src
), batostr(&bt_sk(sk
)->dst
),
901 sk
->sk_state
, rfcomm_pi(sk
)->channel
);
905 static struct seq_operations rfcomm_seq_ops
= {
906 .start
= rfcomm_seq_start
,
907 .next
= rfcomm_seq_next
,
908 .stop
= rfcomm_seq_stop
,
909 .show
= rfcomm_seq_show
912 static int rfcomm_seq_open(struct inode
*inode
, struct file
*file
)
914 return seq_open(file
, &rfcomm_seq_ops
);
917 static struct file_operations rfcomm_seq_fops
= {
918 .owner
= THIS_MODULE
,
919 .open
= rfcomm_seq_open
,
922 .release
= seq_release
,
925 static int __init
rfcomm_sock_proc_init(void)
927 struct proc_dir_entry
*p
= create_proc_entry("sock", S_IRUGO
, proc_bt_rfcomm
);
930 p
->proc_fops
= &rfcomm_seq_fops
;
934 static void __exit
rfcomm_sock_proc_cleanup(void)
936 remove_proc_entry("sock", proc_bt_rfcomm
);
939 #else /* CONFIG_PROC_FS */
941 static int __init
rfcomm_sock_proc_init(void)
946 static void __exit
rfcomm_sock_proc_cleanup(void)
950 #endif /* CONFIG_PROC_FS */
952 static struct proto_ops rfcomm_sock_ops
= {
953 .family
= PF_BLUETOOTH
,
954 .owner
= THIS_MODULE
,
955 .release
= rfcomm_sock_release
,
956 .bind
= rfcomm_sock_bind
,
957 .connect
= rfcomm_sock_connect
,
958 .listen
= rfcomm_sock_listen
,
959 .accept
= rfcomm_sock_accept
,
960 .getname
= rfcomm_sock_getname
,
961 .sendmsg
= rfcomm_sock_sendmsg
,
962 .recvmsg
= rfcomm_sock_recvmsg
,
963 .shutdown
= rfcomm_sock_shutdown
,
964 .setsockopt
= rfcomm_sock_setsockopt
,
965 .getsockopt
= rfcomm_sock_getsockopt
,
966 .ioctl
= rfcomm_sock_ioctl
,
967 .poll
= bt_sock_poll
,
968 .socketpair
= sock_no_socketpair
,
972 static struct net_proto_family rfcomm_sock_family_ops
= {
973 .family
= PF_BLUETOOTH
,
974 .owner
= THIS_MODULE
,
975 .create
= rfcomm_sock_create
978 int __init
rfcomm_init_sockets(void)
982 err
= proto_register(&rfcomm_proto
, 0);
986 err
= bt_sock_register(BTPROTO_RFCOMM
, &rfcomm_sock_family_ops
);
990 rfcomm_sock_proc_init();
992 BT_INFO("RFCOMM socket layer initialized");
997 BT_ERR("RFCOMM socket layer registration failed");
998 proto_unregister(&rfcomm_proto
);
1002 void __exit
rfcomm_cleanup_sockets(void)
1004 rfcomm_sock_proc_cleanup();
1006 if (bt_sock_unregister(BTPROTO_RFCOMM
) < 0)
1007 BT_ERR("RFCOMM socket layer unregistration failed");
1009 proto_unregister(&rfcomm_proto
);