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Vendor import of netgraph from FreeBSD-current 20080626
[dragonfly.git] / sys / netgraph7 / bluetooth / socket / ng_btsocket_l2cap_raw.c
blob06d6f91ee218ca7c4afcebb0cbd5317f3e6417d7
1 /*
2 * ng_btsocket_l2cap_raw.c
3 */
4
5 /*-
6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: ng_btsocket_l2cap_raw.c,v 1.12 2003/09/14 23:29:06 max Exp $
31 * $FreeBSD: src/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap_raw.c,v 1.20 2006/11/06 13:42:04 rwatson Exp $
32 */
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/bitstring.h>
37 #include <sys/domain.h>
38 #include <sys/errno.h>
39 #include <sys/filedesc.h>
40 #include <sys/ioccom.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/malloc.h>
44 #include <sys/mbuf.h>
45 #include <sys/mutex.h>
46 #include <sys/priv.h>
47 #include <sys/protosw.h>
48 #include <sys/queue.h>
49 #include <sys/socket.h>
50 #include <sys/socketvar.h>
51 #include <sys/sysctl.h>
52 #include <sys/taskqueue.h>
53 #include <netgraph/ng_message.h>
54 #include <netgraph/netgraph.h>
55 #include <netgraph/bluetooth/include/ng_bluetooth.h>
56 #include <netgraph/bluetooth/include/ng_hci.h>
57 #include <netgraph/bluetooth/include/ng_l2cap.h>
58 #include <netgraph/bluetooth/include/ng_btsocket.h>
59 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
60
61 /* MALLOC define */
62 #ifdef NG_SEPARATE_MALLOC
63 MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_L2CAP_RAW, "netgraph_btsocks_l2cap_raw",
64 "Netgraph Bluetooth raw L2CAP sockets");
65 #else
66 #define M_NETGRAPH_BTSOCKET_L2CAP_RAW M_NETGRAPH
67 #endif /* NG_SEPARATE_MALLOC */
68
69 /* Netgraph node methods */
70 static ng_constructor_t ng_btsocket_l2cap_raw_node_constructor;
71 static ng_rcvmsg_t ng_btsocket_l2cap_raw_node_rcvmsg;
72 static ng_shutdown_t ng_btsocket_l2cap_raw_node_shutdown;
73 static ng_newhook_t ng_btsocket_l2cap_raw_node_newhook;
74 static ng_connect_t ng_btsocket_l2cap_raw_node_connect;
75 static ng_rcvdata_t ng_btsocket_l2cap_raw_node_rcvdata;
76 static ng_disconnect_t ng_btsocket_l2cap_raw_node_disconnect;
77
78 static void ng_btsocket_l2cap_raw_input (void *, int);
79 static void ng_btsocket_l2cap_raw_rtclean (void *, int);
80 static void ng_btsocket_l2cap_raw_get_token (u_int32_t *);
81
82 static int ng_btsocket_l2cap_raw_send_ngmsg
83 (hook_p, int, void *, int);
84 static int ng_btsocket_l2cap_raw_send_sync_ngmsg
85 (ng_btsocket_l2cap_raw_pcb_p, int, void *, int);
86
87 #define ng_btsocket_l2cap_raw_wakeup_input_task() \
88 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_l2cap_raw_queue_task)
89
90 #define ng_btsocket_l2cap_raw_wakeup_route_task() \
91 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_l2cap_raw_rt_task)
92
93 /* Netgraph type descriptor */
94 static struct ng_type typestruct = {
95 .version = NG_ABI_VERSION,
96 .name = NG_BTSOCKET_L2CAP_RAW_NODE_TYPE,
97 .constructor = ng_btsocket_l2cap_raw_node_constructor,
98 .rcvmsg = ng_btsocket_l2cap_raw_node_rcvmsg,
99 .shutdown = ng_btsocket_l2cap_raw_node_shutdown,
100 .newhook = ng_btsocket_l2cap_raw_node_newhook,
101 .connect = ng_btsocket_l2cap_raw_node_connect,
102 .rcvdata = ng_btsocket_l2cap_raw_node_rcvdata,
103 .disconnect = ng_btsocket_l2cap_raw_node_disconnect,
104 };
105
106 /* Globals */
107 extern int ifqmaxlen;
108 static u_int32_t ng_btsocket_l2cap_raw_debug_level;
109 static u_int32_t ng_btsocket_l2cap_raw_ioctl_timeout;
110 static node_p ng_btsocket_l2cap_raw_node;
111 static struct ng_bt_itemq ng_btsocket_l2cap_raw_queue;
112 static struct mtx ng_btsocket_l2cap_raw_queue_mtx;
113 static struct task ng_btsocket_l2cap_raw_queue_task;
114 static LIST_HEAD(, ng_btsocket_l2cap_raw_pcb) ng_btsocket_l2cap_raw_sockets;
115 static struct mtx ng_btsocket_l2cap_raw_sockets_mtx;
116 static u_int32_t ng_btsocket_l2cap_raw_token;
117 static struct mtx ng_btsocket_l2cap_raw_token_mtx;
118 static LIST_HEAD(, ng_btsocket_l2cap_rtentry) ng_btsocket_l2cap_raw_rt;
119 static struct mtx ng_btsocket_l2cap_raw_rt_mtx;
120 static struct task ng_btsocket_l2cap_raw_rt_task;
121
122 /* Sysctl tree */
123 SYSCTL_DECL(_net_bluetooth_l2cap_sockets);
124 SYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, raw, CTLFLAG_RW,
125 0, "Bluetooth raw L2CAP sockets family");
126 SYSCTL_INT(_net_bluetooth_l2cap_sockets_raw, OID_AUTO, debug_level,
127 CTLFLAG_RW,
128 &ng_btsocket_l2cap_raw_debug_level, NG_BTSOCKET_WARN_LEVEL,
129 "Bluetooth raw L2CAP sockets debug level");
130 SYSCTL_INT(_net_bluetooth_l2cap_sockets_raw, OID_AUTO, ioctl_timeout,
131 CTLFLAG_RW,
132 &ng_btsocket_l2cap_raw_ioctl_timeout, 5,
133 "Bluetooth raw L2CAP sockets ioctl timeout");
134 SYSCTL_INT(_net_bluetooth_l2cap_sockets_raw, OID_AUTO, queue_len,
135 CTLFLAG_RD,
136 &ng_btsocket_l2cap_raw_queue.len, 0,
137 "Bluetooth raw L2CAP sockets input queue length");
138 SYSCTL_INT(_net_bluetooth_l2cap_sockets_raw, OID_AUTO, queue_maxlen,
139 CTLFLAG_RD,
140 &ng_btsocket_l2cap_raw_queue.maxlen, 0,
141 "Bluetooth raw L2CAP sockets input queue max. length");
142 SYSCTL_INT(_net_bluetooth_l2cap_sockets_raw, OID_AUTO, queue_drops,
143 CTLFLAG_RD,
144 &ng_btsocket_l2cap_raw_queue.drops, 0,
145 "Bluetooth raw L2CAP sockets input queue drops");
146
147 /* Debug */
148 #define NG_BTSOCKET_L2CAP_RAW_INFO \
149 if (ng_btsocket_l2cap_raw_debug_level >= NG_BTSOCKET_INFO_LEVEL) \
150 printf
151
152 #define NG_BTSOCKET_L2CAP_RAW_WARN \
153 if (ng_btsocket_l2cap_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL) \
154 printf
155
156 #define NG_BTSOCKET_L2CAP_RAW_ERR \
157 if (ng_btsocket_l2cap_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL) \
158 printf
159
160 #define NG_BTSOCKET_L2CAP_RAW_ALERT \
161 if (ng_btsocket_l2cap_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \
162 printf
163
164 /*****************************************************************************
165 *****************************************************************************
166 ** Netgraph node interface
167 *****************************************************************************
168 *****************************************************************************/
169
170 /*
171 * Netgraph node constructor. Do not allow to create node of this type.
172 */
173
174 static int
175 ng_btsocket_l2cap_raw_node_constructor(node_p node)
176 {
177 return (EINVAL);
178 } /* ng_btsocket_l2cap_raw_node_constructor */
179
180 /*
181 * Do local shutdown processing. Let old node go and create new fresh one.
182 */
183
184 static int
185 ng_btsocket_l2cap_raw_node_shutdown(node_p node)
186 {
187 int error = 0;
188
189 NG_NODE_UNREF(node);
190
191 /* Create new node */
192 error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_raw_node);
193 if (error != 0) {
194 NG_BTSOCKET_L2CAP_RAW_ALERT(
195 "%s: Could not create Netgraph node, error=%d\n", __func__, error);
196
197 ng_btsocket_l2cap_raw_node = NULL;
198
199 return (error);
200 }
201
202 error = ng_name_node(ng_btsocket_l2cap_raw_node,
203 NG_BTSOCKET_L2CAP_RAW_NODE_TYPE);
204 if (error != 0) {
205 NG_BTSOCKET_L2CAP_RAW_ALERT(
206 "%s: Could not name Netgraph node, error=%d\n", __func__, error);
207
208 NG_NODE_UNREF(ng_btsocket_l2cap_raw_node);
209 ng_btsocket_l2cap_raw_node = NULL;
210
211 return (error);
212 }
213
214 return (0);
215 } /* ng_btsocket_l2cap_raw_node_shutdown */
216
217 /*
218 * We allow any hook to be connected to the node.
219 */
220
221 static int
222 ng_btsocket_l2cap_raw_node_newhook(node_p node, hook_p hook, char const *name)
223 {
224 return (0);
225 } /* ng_btsocket_l2cap_raw_node_newhook */
226
227 /*
228 * Just say "YEP, that's OK by me!"
229 */
230
231 static int
232 ng_btsocket_l2cap_raw_node_connect(hook_p hook)
233 {
234 NG_HOOK_SET_PRIVATE(hook, NULL);
235 NG_HOOK_REF(hook); /* Keep extra reference to the hook */
236
237 return (0);
238 } /* ng_btsocket_l2cap_raw_node_connect */
239
240 /*
241 * Hook disconnection. Schedule route cleanup task
242 */
243
244 static int
245 ng_btsocket_l2cap_raw_node_disconnect(hook_p hook)
246 {
247 /*
248 * If hook has private information than we must have this hook in
249 * the routing table and must schedule cleaning for the routing table.
250 * Otherwise hook was connected but we never got "hook_info" message,
251 * so we have never added this hook to the routing table and it save
252 * to just delete it.
253 */
254
255 if (NG_HOOK_PRIVATE(hook) != NULL)
256 return (ng_btsocket_l2cap_raw_wakeup_route_task());
257
258 NG_HOOK_UNREF(hook); /* Remove extra reference */
259
260 return (0);
261 } /* ng_btsocket_l2cap_raw_node_disconnect */
262
263 /*
264 * Process incoming messages
265 */
266
267 static int
268 ng_btsocket_l2cap_raw_node_rcvmsg(node_p node, item_p item, hook_p hook)
269 {
270 struct ng_mesg *msg = NGI_MSG(item); /* item still has message */
271 int error = 0;
272
273 if (msg != NULL && msg->header.typecookie == NGM_L2CAP_COOKIE) {
274
275 /*
276 * NGM_L2CAP_NODE_HOOK_INFO is special message initiated by
277 * L2CAP layer. Ignore all other messages if they are not
278 * replies or token is zero
279 */
280
281 if (msg->header.cmd != NGM_L2CAP_NODE_HOOK_INFO) {
282 if (msg->header.token == 0 ||
283 !(msg->header.flags & NGF_RESP)) {
284 NG_FREE_ITEM(item);
285 return (0);
286 }
287 }
288
289 mtx_lock(&ng_btsocket_l2cap_raw_queue_mtx);
290 if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_raw_queue)) {
291 NG_BTSOCKET_L2CAP_RAW_ERR(
292 "%s: Input queue is full\n", __func__);
293
294 NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_raw_queue);
295 NG_FREE_ITEM(item);
296 error = ENOBUFS;
297 } else {
298 if (hook != NULL) {
299 NG_HOOK_REF(hook);
300 NGI_SET_HOOK(item, hook);
301 }
302
303 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_raw_queue, item);
304 error = ng_btsocket_l2cap_raw_wakeup_input_task();
305 }
306 mtx_unlock(&ng_btsocket_l2cap_raw_queue_mtx);
307 } else {
308 NG_FREE_ITEM(item);
309 error = EINVAL;
310 }
311
312 return (error);
313 } /* ng_btsocket_l2cap_raw_node_rcvmsg */
314
315 /*
316 * Receive data on a hook
317 */
318
319 static int
320 ng_btsocket_l2cap_raw_node_rcvdata(hook_p hook, item_p item)
321 {
322 NG_FREE_ITEM(item);
323
324 return (EINVAL);
325 } /* ng_btsocket_l2cap_raw_node_rcvdata */
326
327 /*****************************************************************************
328 *****************************************************************************
329 ** Socket interface
330 *****************************************************************************
331 *****************************************************************************/
332
333 /*
334 * L2CAP sockets input routine
335 */
336
337 static void
338 ng_btsocket_l2cap_raw_input(void *context, int pending)
339 {
340 item_p item = NULL;
341 hook_p hook = NULL;
342 struct ng_mesg *msg = NULL;
343
344 for (;;) {
345 mtx_lock(&ng_btsocket_l2cap_raw_queue_mtx);
346 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_l2cap_raw_queue, item);
347 mtx_unlock(&ng_btsocket_l2cap_raw_queue_mtx);
348
349 if (item == NULL)
350 break;
351
352 KASSERT((item->el_flags & NGQF_TYPE) == NGQF_MESG,
353 ("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE)));
354
355 NGI_GET_MSG(item, msg);
356 NGI_GET_HOOK(item, hook);
357 NG_FREE_ITEM(item);
358
359 switch (msg->header.cmd) {
360 case NGM_L2CAP_NODE_HOOK_INFO: {
361 ng_btsocket_l2cap_rtentry_t *rt = NULL;
362
363 if (hook == NULL || NG_HOOK_NOT_VALID(hook) ||
364 msg->header.arglen != sizeof(bdaddr_t))
365 break;
366
367 if (bcmp(msg->data, NG_HCI_BDADDR_ANY,
368 sizeof(bdaddr_t)) == 0)
369 break;
370
371 rt = (ng_btsocket_l2cap_rtentry_t *)
372 NG_HOOK_PRIVATE(hook);
373 if (rt == NULL) {
374 MALLOC(rt, ng_btsocket_l2cap_rtentry_p,
375 sizeof(*rt),
376 M_NETGRAPH_BTSOCKET_L2CAP_RAW,
377 M_NOWAIT|M_ZERO);
378 if (rt == NULL)
379 break;
380
381 NG_HOOK_SET_PRIVATE(hook, rt);
382
383 mtx_lock(&ng_btsocket_l2cap_raw_rt_mtx);
384
385 LIST_INSERT_HEAD(&ng_btsocket_l2cap_raw_rt,
386 rt, next);
387 } else
388 mtx_lock(&ng_btsocket_l2cap_raw_rt_mtx);
389
390 bcopy(msg->data, &rt->src, sizeof(rt->src));
391 rt->hook = hook;
392
393 NG_BTSOCKET_L2CAP_RAW_INFO(
394 "%s: Updating hook \"%s\", src bdaddr=%x:%x:%x:%x:%x:%x\n",
395 __func__, NG_HOOK_NAME(hook),
396 rt->src.b[5], rt->src.b[4], rt->src.b[3],
397 rt->src.b[2], rt->src.b[1], rt->src.b[0]);
398
399 mtx_unlock(&ng_btsocket_l2cap_raw_rt_mtx);
400 } break;
401
402 case NGM_L2CAP_NODE_GET_FLAGS:
403 case NGM_L2CAP_NODE_GET_DEBUG:
404 case NGM_L2CAP_NODE_GET_CON_LIST:
405 case NGM_L2CAP_NODE_GET_CHAN_LIST:
406 case NGM_L2CAP_NODE_GET_AUTO_DISCON_TIMO:
407 case NGM_L2CAP_L2CA_PING:
408 case NGM_L2CAP_L2CA_GET_INFO: {
409 ng_btsocket_l2cap_raw_pcb_p pcb = NULL;
410
411 mtx_lock(&ng_btsocket_l2cap_raw_sockets_mtx);
412
413 LIST_FOREACH(pcb,&ng_btsocket_l2cap_raw_sockets,next) {
414 mtx_lock(&pcb->pcb_mtx);
415
416 if (pcb->token == msg->header.token) {
417 pcb->msg = msg;
418 msg = NULL;
419 wakeup(&pcb->msg);
420 mtx_unlock(&pcb->pcb_mtx);
421 break;
422 }
423
424 mtx_unlock(&pcb->pcb_mtx);
425 }
426
427 mtx_unlock(&ng_btsocket_l2cap_raw_sockets_mtx);
428 } break;
429
430 default:
431 NG_BTSOCKET_L2CAP_RAW_WARN(
432 "%s: Unknown message, cmd=%d\n", __func__, msg->header.cmd);
433 break;
434 }
435
436 if (hook != NULL)
437 NG_HOOK_UNREF(hook); /* remove extra reference */
438
439 NG_FREE_MSG(msg); /* Checks for msg != NULL */
440 }
441 } /* ng_btsocket_l2cap_raw_input */
442
443 /*
444 * Route cleanup task. Gets scheduled when hook is disconnected. Here we
445 * will find all sockets that use "invalid" hook and disconnect them.
446 */
447
448 static void
449 ng_btsocket_l2cap_raw_rtclean(void *context, int pending)
450 {
451 ng_btsocket_l2cap_raw_pcb_p pcb = NULL;
452 ng_btsocket_l2cap_rtentry_p rt = NULL;
453
454 /*
455 * First disconnect all sockets that use "invalid" hook
456 */
457
458 mtx_lock(&ng_btsocket_l2cap_raw_sockets_mtx);
459
460 LIST_FOREACH(pcb, &ng_btsocket_l2cap_raw_sockets, next) {
461 mtx_lock(&pcb->pcb_mtx);
462
463 if (pcb->rt != NULL &&
464 pcb->rt->hook != NULL && NG_HOOK_NOT_VALID(pcb->rt->hook)) {
465 if (pcb->so != NULL &&
466 pcb->so->so_state & SS_ISCONNECTED)
467 soisdisconnected(pcb->so);
468
469 pcb->rt = NULL;
470 }
471
472 mtx_unlock(&pcb->pcb_mtx);
473 }
474
475 mtx_unlock(&ng_btsocket_l2cap_raw_sockets_mtx);
476
477 /*
478 * Now cleanup routing table
479 */
480
481 mtx_lock(&ng_btsocket_l2cap_raw_rt_mtx);
482
483 for (rt = LIST_FIRST(&ng_btsocket_l2cap_raw_rt); rt != NULL; ) {
484 ng_btsocket_l2cap_rtentry_p rt_next = LIST_NEXT(rt, next);
485
486 if (rt->hook != NULL && NG_HOOK_NOT_VALID(rt->hook)) {
487 LIST_REMOVE(rt, next);
488
489 NG_HOOK_SET_PRIVATE(rt->hook, NULL);
490 NG_HOOK_UNREF(rt->hook); /* Remove extra reference */
491
492 bzero(rt, sizeof(*rt));
493 FREE(rt, M_NETGRAPH_BTSOCKET_L2CAP_RAW);
494 }
495
496 rt = rt_next;
497 }
498
499 mtx_unlock(&ng_btsocket_l2cap_raw_rt_mtx);
500 } /* ng_btsocket_l2cap_raw_rtclean */
501
502 /*
503 * Initialize everything
504 */
505
506 void
507 ng_btsocket_l2cap_raw_init(void)
508 {
509 int error = 0;
510
511 ng_btsocket_l2cap_raw_node = NULL;
512 ng_btsocket_l2cap_raw_debug_level = NG_BTSOCKET_WARN_LEVEL;
513 ng_btsocket_l2cap_raw_ioctl_timeout = 5;
514
515 /* Register Netgraph node type */
516 error = ng_newtype(&typestruct);
517 if (error != 0) {
518 NG_BTSOCKET_L2CAP_RAW_ALERT(
519 "%s: Could not register Netgraph node type, error=%d\n", __func__, error);
520
521 return;
522 }
523
524 /* Create Netgrapg node */
525 error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_raw_node);
526 if (error != 0) {
527 NG_BTSOCKET_L2CAP_RAW_ALERT(
528 "%s: Could not create Netgraph node, error=%d\n", __func__, error);
529
530 ng_btsocket_l2cap_raw_node = NULL;
531
532 return;
533 }
534
535 error = ng_name_node(ng_btsocket_l2cap_raw_node,
536 NG_BTSOCKET_L2CAP_RAW_NODE_TYPE);
537 if (error != 0) {
538 NG_BTSOCKET_L2CAP_RAW_ALERT(
539 "%s: Could not name Netgraph node, error=%d\n", __func__, error);
540
541 NG_NODE_UNREF(ng_btsocket_l2cap_raw_node);
542 ng_btsocket_l2cap_raw_node = NULL;
543
544 return;
545 }
546
547 /* Create input queue */
548 NG_BT_ITEMQ_INIT(&ng_btsocket_l2cap_raw_queue, ifqmaxlen);
549 mtx_init(&ng_btsocket_l2cap_raw_queue_mtx,
550 "btsocks_l2cap_raw_queue_mtx", NULL, MTX_DEF);
551 TASK_INIT(&ng_btsocket_l2cap_raw_queue_task, 0,
552 ng_btsocket_l2cap_raw_input, NULL);
553
554 /* Create list of sockets */
555 LIST_INIT(&ng_btsocket_l2cap_raw_sockets);
556 mtx_init(&ng_btsocket_l2cap_raw_sockets_mtx,
557 "btsocks_l2cap_raw_sockets_mtx", NULL, MTX_DEF);
558
559 /* Tokens */
560 ng_btsocket_l2cap_raw_token = 0;
561 mtx_init(&ng_btsocket_l2cap_raw_token_mtx,
562 "btsocks_l2cap_raw_token_mtx", NULL, MTX_DEF);
563
564 /* Routing table */
565 LIST_INIT(&ng_btsocket_l2cap_raw_rt);
566 mtx_init(&ng_btsocket_l2cap_raw_rt_mtx,
567 "btsocks_l2cap_raw_rt_mtx", NULL, MTX_DEF);
568 TASK_INIT(&ng_btsocket_l2cap_raw_rt_task, 0,
569 ng_btsocket_l2cap_raw_rtclean, NULL);
570 } /* ng_btsocket_l2cap_raw_init */
571
572 /*
573 * Abort connection on socket
574 */
575
576 void
577 ng_btsocket_l2cap_raw_abort(struct socket *so)
578 {
579
580 (void)ng_btsocket_l2cap_raw_disconnect(so);
581 } /* ng_btsocket_l2cap_raw_abort */
582
583 void
584 ng_btsocket_l2cap_raw_close(struct socket *so)
585 {
586
587 (void)ng_btsocket_l2cap_raw_disconnect(so);
588 } /* ng_btsocket_l2cap_raw_close */
589
590 /*
591 * Create and attach new socket
592 */
593
594 int
595 ng_btsocket_l2cap_raw_attach(struct socket *so, int proto, struct thread *td)
596 {
597 ng_btsocket_l2cap_raw_pcb_p pcb = so2l2cap_raw_pcb(so);
598 int error;
599
600 if (pcb != NULL)
601 return (EISCONN);
602
603 if (ng_btsocket_l2cap_raw_node == NULL)
604 return (EPROTONOSUPPORT);
605 if (so->so_type != SOCK_RAW)
606 return (ESOCKTNOSUPPORT);
607
608 /* Reserve send and receive space if it is not reserved yet */
609 error = soreserve(so, NG_BTSOCKET_L2CAP_RAW_SENDSPACE,
610 NG_BTSOCKET_L2CAP_RAW_RECVSPACE);
611 if (error != 0)
612 return (error);
613
614 /* Allocate the PCB */
615 MALLOC(pcb, ng_btsocket_l2cap_raw_pcb_p, sizeof(*pcb),
616 M_NETGRAPH_BTSOCKET_L2CAP_RAW, M_NOWAIT|M_ZERO);
617 if (pcb == NULL)
618 return (ENOMEM);
619
620 /* Link the PCB and the socket */
621 so->so_pcb = (caddr_t) pcb;
622 pcb->so = so;
623
624 if (priv_check(td, PRIV_NETBLUETOOTH_RAW) == 0)
625 pcb->flags |= NG_BTSOCKET_L2CAP_RAW_PRIVILEGED;
626
627 mtx_init(&pcb->pcb_mtx, "btsocks_l2cap_raw_pcb_mtx", NULL, MTX_DEF);
628
629 /* Add the PCB to the list */
630 mtx_lock(&ng_btsocket_l2cap_raw_sockets_mtx);
631 LIST_INSERT_HEAD(&ng_btsocket_l2cap_raw_sockets, pcb, next);
632 mtx_unlock(&ng_btsocket_l2cap_raw_sockets_mtx);
633
634 return (0);
635 } /* ng_btsocket_l2cap_raw_attach */
636
637 /*
638 * Bind socket
639 */
640
641 int
642 ng_btsocket_l2cap_raw_bind(struct socket *so, struct sockaddr *nam,
643 struct thread *td)
644 {
645 ng_btsocket_l2cap_raw_pcb_t *pcb = so2l2cap_raw_pcb(so);
646 struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam;
647 ng_btsocket_l2cap_rtentry_t *rt = NULL;
648
649 if (pcb == NULL)
650 return (EINVAL);
651 if (ng_btsocket_l2cap_raw_node == NULL)
652 return (EINVAL);
653
654 if (sa == NULL)
655 return (EINVAL);
656 if (sa->l2cap_family != AF_BLUETOOTH)
657 return (EAFNOSUPPORT);
658 if (sa->l2cap_len != sizeof(*sa))
659 return (EINVAL);
660
661 if (bcmp(&sa->l2cap_bdaddr, NG_HCI_BDADDR_ANY,
662 sizeof(sa->l2cap_bdaddr)) != 0) {
663 mtx_lock(&ng_btsocket_l2cap_raw_rt_mtx);
664
665 LIST_FOREACH(rt, &ng_btsocket_l2cap_raw_rt, next) {
666 if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook))
667 continue;
668
669 if (bcmp(&sa->l2cap_bdaddr, &rt->src,
670 sizeof(rt->src)) == 0)
671 break;
672 }
673
674 mtx_unlock(&ng_btsocket_l2cap_raw_rt_mtx);
675
676 if (rt == NULL)
677 return (ENETDOWN);
678 } else
679 rt = NULL;
680
681 mtx_lock(&pcb->pcb_mtx);
682 bcopy(&sa->l2cap_bdaddr, &pcb->src, sizeof(pcb->src));
683 pcb->rt = rt;
684 mtx_unlock(&pcb->pcb_mtx);
685
686 return (0);
687 } /* ng_btsocket_l2cap_raw_bind */
688
689 /*
690 * Connect socket
691 */
692
693 int
694 ng_btsocket_l2cap_raw_connect(struct socket *so, struct sockaddr *nam,
695 struct thread *td)
696 {
697 ng_btsocket_l2cap_raw_pcb_t *pcb = so2l2cap_raw_pcb(so);
698 struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam;
699 ng_btsocket_l2cap_rtentry_t *rt = NULL;
700 int error;
701
702 if (pcb == NULL)
703 return (EINVAL);
704 if (ng_btsocket_l2cap_raw_node == NULL)
705 return (EINVAL);
706
707 if (sa == NULL)
708 return (EINVAL);
709 if (sa->l2cap_family != AF_BLUETOOTH)
710 return (EAFNOSUPPORT);
711 if (sa->l2cap_len != sizeof(*sa))
712 return (EINVAL);
713 if (bcmp(&sa->l2cap_bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0)
714 return (EINVAL);
715
716 mtx_lock(&pcb->pcb_mtx);
717
718 bcopy(&sa->l2cap_bdaddr, &pcb->dst, sizeof(pcb->dst));
719
720 if (bcmp(&pcb->src, &pcb->dst, sizeof(pcb->src)) == 0) {
721 mtx_unlock(&pcb->pcb_mtx);
722
723 return (EADDRNOTAVAIL);
724 }
725
726 /*
727 * If there is route already - use it
728 */
729
730 if (pcb->rt != NULL) {
731 soisconnected(so);
732 mtx_unlock(&pcb->pcb_mtx);
733
734 return (0);
735 }
736
737 /*
738 * Find the first hook that does not match specified destination address
739 */
740
741 mtx_lock(&ng_btsocket_l2cap_raw_rt_mtx);
742
743 LIST_FOREACH(rt, &ng_btsocket_l2cap_raw_rt, next) {
744 if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook))
745 continue;
746
747 if (bcmp(&pcb->dst, &rt->src, sizeof(rt->src)) != 0)
748 break;
749 }
750
751 if (rt != NULL) {
752 soisconnected(so);
753
754 pcb->rt = rt;
755 bcopy(&rt->src, &pcb->src, sizeof(pcb->src));
756
757 error = 0;
758 } else
759 error = ENETDOWN;
760
761 mtx_unlock(&ng_btsocket_l2cap_raw_rt_mtx);
762 mtx_unlock(&pcb->pcb_mtx);
763
764 return (error);
765 } /* ng_btsocket_l2cap_raw_connect */
766
767 /*
768 * Process ioctl's calls on socket
769 */
770
771 int
772 ng_btsocket_l2cap_raw_control(struct socket *so, u_long cmd, caddr_t data,
773 struct ifnet *ifp, struct thread *td)
774 {
775 ng_btsocket_l2cap_raw_pcb_p pcb = so2l2cap_raw_pcb(so);
776 struct ng_mesg *msg = NULL;
777 int error = 0;
778
779 if (pcb == NULL)
780 return (EINVAL);
781 if (ng_btsocket_l2cap_raw_node == NULL)
782 return (EINVAL);
783
784 mtx_lock(&pcb->pcb_mtx);
785
786 /* Check if we route info */
787 if (pcb->rt == NULL) {
788 mtx_unlock(&pcb->pcb_mtx);
789 return (EHOSTUNREACH);
790 }
791
792 /* Check if we have pending ioctl() */
793 if (pcb->token != 0) {
794 mtx_unlock(&pcb->pcb_mtx);
795 return (EBUSY);
796 }
797
798 switch (cmd) {
799 case SIOC_L2CAP_NODE_GET_FLAGS: {
800 struct ng_btsocket_l2cap_raw_node_flags *p =
801 (struct ng_btsocket_l2cap_raw_node_flags *) data;
802
803 error = ng_btsocket_l2cap_raw_send_sync_ngmsg(pcb,
804 NGM_L2CAP_NODE_GET_FLAGS,
805 &p->flags, sizeof(p->flags));
806 } break;
807
808 case SIOC_L2CAP_NODE_GET_DEBUG: {
809 struct ng_btsocket_l2cap_raw_node_debug *p =
810 (struct ng_btsocket_l2cap_raw_node_debug *) data;
811
812 error = ng_btsocket_l2cap_raw_send_sync_ngmsg(pcb,
813 NGM_L2CAP_NODE_GET_DEBUG,
814 &p->debug, sizeof(p->debug));
815 } break;
816
817 case SIOC_L2CAP_NODE_SET_DEBUG: {
818 struct ng_btsocket_l2cap_raw_node_debug *p =
819 (struct ng_btsocket_l2cap_raw_node_debug *) data;
820
821 if (pcb->flags & NG_BTSOCKET_L2CAP_RAW_PRIVILEGED)
822 error = ng_btsocket_l2cap_raw_send_ngmsg(pcb->rt->hook,
823 NGM_L2CAP_NODE_SET_DEBUG,
824 &p->debug, sizeof(p->debug));
825 else
826 error = EPERM;
827 } break;
828
829 case SIOC_L2CAP_NODE_GET_CON_LIST: {
830 struct ng_btsocket_l2cap_raw_con_list *p =
831 (struct ng_btsocket_l2cap_raw_con_list *) data;
832 ng_l2cap_node_con_list_ep *p1 = NULL;
833 ng_l2cap_node_con_ep *p2 = NULL;
834
835 if (p->num_connections == 0 ||
836 p->num_connections > NG_L2CAP_MAX_CON_NUM ||
837 p->connections == NULL) {
838 error = EINVAL;
839 break;
840 }
841
842 NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_NODE_GET_CON_LIST,
843 0, M_NOWAIT);
844 if (msg == NULL) {
845 error = ENOMEM;
846 break;
847 }
848 ng_btsocket_l2cap_raw_get_token(&msg->header.token);
849 pcb->token = msg->header.token;
850 pcb->msg = NULL;
851
852 NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_raw_node, msg,
853 pcb->rt->hook, 0);
854 if (error != 0) {
855 pcb->token = 0;
856 break;
857 }
858
859 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "l2ctl",
860 ng_btsocket_l2cap_raw_ioctl_timeout * hz);
861 pcb->token = 0;
862
863 if (error != 0)
864 break;
865
866 if (pcb->msg != NULL &&
867 pcb->msg->header.cmd == NGM_L2CAP_NODE_GET_CON_LIST) {
868 /* Return data back to user space */
869 p1 = (ng_l2cap_node_con_list_ep *)(pcb->msg->data);
870 p2 = (ng_l2cap_node_con_ep *)(p1 + 1);
871
872 p->num_connections = min(p->num_connections,
873 p1->num_connections);
874 if (p->num_connections > 0)
875 error = copyout((caddr_t) p2,
876 (caddr_t) p->connections,
877 p->num_connections * sizeof(*p2));
878 } else
879 error = EINVAL;
880
881 NG_FREE_MSG(pcb->msg); /* checks for != NULL */
882 } break;
883
884 case SIOC_L2CAP_NODE_GET_CHAN_LIST: {
885 struct ng_btsocket_l2cap_raw_chan_list *p =
886 (struct ng_btsocket_l2cap_raw_chan_list *) data;
887 ng_l2cap_node_chan_list_ep *p1 = NULL;
888 ng_l2cap_node_chan_ep *p2 = NULL;
889
890 if (p->num_channels == 0 ||
891 p->num_channels > NG_L2CAP_MAX_CHAN_NUM ||
892 p->channels == NULL) {
893 error = EINVAL;
894 break;
895 }
896
897 NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE,
898 NGM_L2CAP_NODE_GET_CHAN_LIST, 0, M_NOWAIT);
899 if (msg == NULL) {
900 error = ENOMEM;
901 break;
902 }
903 ng_btsocket_l2cap_raw_get_token(&msg->header.token);
904 pcb->token = msg->header.token;
905 pcb->msg = NULL;
906
907 NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_raw_node, msg,
908 pcb->rt->hook, 0);
909 if (error != 0) {
910 pcb->token = 0;
911 break;
912 }
913
914 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "l2ctl",
915 ng_btsocket_l2cap_raw_ioctl_timeout * hz);
916 pcb->token = 0;
917
918 if (error != 0)
919 break;
920
921 if (pcb->msg != NULL &&
922 pcb->msg->header.cmd == NGM_L2CAP_NODE_GET_CHAN_LIST) {
923 /* Return data back to user space */
924 p1 = (ng_l2cap_node_chan_list_ep *)(pcb->msg->data);
925 p2 = (ng_l2cap_node_chan_ep *)(p1 + 1);
926
927 p->num_channels = min(p->num_channels,
928 p1->num_channels);
929 if (p->num_channels > 0)
930 error = copyout((caddr_t) p2,
931 (caddr_t) p->channels,
932 p->num_channels * sizeof(*p2));
933 } else
934 error = EINVAL;
935
936 NG_FREE_MSG(pcb->msg); /* checks for != NULL */
937 } break;
938
939 case SIOC_L2CAP_L2CA_PING: {
940 struct ng_btsocket_l2cap_raw_ping *p =
941 (struct ng_btsocket_l2cap_raw_ping *) data;
942 ng_l2cap_l2ca_ping_ip *ip = NULL;
943 ng_l2cap_l2ca_ping_op *op = NULL;
944
945 if (!(pcb->flags & NG_BTSOCKET_L2CAP_RAW_PRIVILEGED)) {
946 error = EPERM;
947 break;
948 }
949
950 if ((p->echo_size != 0 && p->echo_data == NULL) ||
951 p->echo_size > NG_L2CAP_MAX_ECHO_SIZE) {
952 error = EINVAL;
953 break;
954 }
955
956 NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE,
957 NGM_L2CAP_L2CA_PING, sizeof(*ip) + p->echo_size,
958 M_NOWAIT);
959 if (msg == NULL) {
960 error = ENOMEM;
961 break;
962 }
963 ng_btsocket_l2cap_raw_get_token(&msg->header.token);
964 pcb->token = msg->header.token;
965 pcb->msg = NULL;
966
967 ip = (ng_l2cap_l2ca_ping_ip *)(msg->data);
968 bcopy(&pcb->dst, &ip->bdaddr, sizeof(ip->bdaddr));
969 ip->echo_size = p->echo_size;
970
971 if (ip->echo_size > 0) {
972 error = copyin(p->echo_data, ip + 1, p->echo_size);
973 if (error != 0) {
974 NG_FREE_MSG(msg);
975 pcb->token = 0;
976 break;
977 }
978 }
979
980 NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_raw_node, msg,
981 pcb->rt->hook, 0);
982 if (error != 0) {
983 pcb->token = 0;
984 break;
985 }
986
987 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "l2ctl",
988 bluetooth_l2cap_rtx_timeout());
989 pcb->token = 0;
990
991 if (error != 0)
992 break;
993
994 if (pcb->msg != NULL &&
995 pcb->msg->header.cmd == NGM_L2CAP_L2CA_PING) {
996 /* Return data back to the user space */
997 op = (ng_l2cap_l2ca_ping_op *)(pcb->msg->data);
998 p->result = op->result;
999 p->echo_size = min(p->echo_size, op->echo_size);
1000
1001 if (p->echo_size > 0)
1002 error = copyout(op + 1, p->echo_data,
1003 p->echo_size);
1004 } else
1005 error = EINVAL;
1006
1007 NG_FREE_MSG(pcb->msg); /* checks for != NULL */
1008 } break;
1009
1010 case SIOC_L2CAP_L2CA_GET_INFO: {
1011 struct ng_btsocket_l2cap_raw_get_info *p =
1012 (struct ng_btsocket_l2cap_raw_get_info *) data;
1013 ng_l2cap_l2ca_get_info_ip *ip = NULL;
1014 ng_l2cap_l2ca_get_info_op *op = NULL;
1015
1016 if (!(pcb->flags & NG_BTSOCKET_L2CAP_RAW_PRIVILEGED)) {
1017 error = EPERM;
1018 break;
1019 }
1020
1021 if (p->info_size != 0 && p->info_data == NULL) {
1022 error = EINVAL;
1023 break;
1024 }
1025
1026 NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE,
1027 NGM_L2CAP_L2CA_GET_INFO, sizeof(*ip) + p->info_size,
1028 M_NOWAIT);
1029 if (msg == NULL) {
1030 error = ENOMEM;
1031 break;
1032 }
1033 ng_btsocket_l2cap_raw_get_token(&msg->header.token);
1034 pcb->token = msg->header.token;
1035 pcb->msg = NULL;
1036
1037 ip = (ng_l2cap_l2ca_get_info_ip *)(msg->data);
1038 bcopy(&pcb->dst, &ip->bdaddr, sizeof(ip->bdaddr));
1039 ip->info_type = p->info_type;
1040
1041 NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_raw_node, msg,
1042 pcb->rt->hook, 0);
1043 if (error != 0) {
1044 pcb->token = 0;
1045 break;
1046 }
1047
1048 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "l2ctl",
1049 bluetooth_l2cap_rtx_timeout());
1050 pcb->token = 0;
1051
1052 if (error != 0)
1053 break;
1054
1055 if (pcb->msg != NULL &&
1056 pcb->msg->header.cmd == NGM_L2CAP_L2CA_GET_INFO) {
1057 /* Return data back to the user space */
1058 op = (ng_l2cap_l2ca_get_info_op *)(pcb->msg->data);
1059 p->result = op->result;
1060 p->info_size = min(p->info_size, op->info_size);
1061
1062 if (p->info_size > 0)
1063 error = copyout(op + 1, p->info_data,
1064 p->info_size);
1065 } else
1066 error = EINVAL;
1067
1068 NG_FREE_MSG(pcb->msg); /* checks for != NULL */
1069 } break;
1070
1071 case SIOC_L2CAP_NODE_GET_AUTO_DISCON_TIMO: {
1072 struct ng_btsocket_l2cap_raw_auto_discon_timo *p =
1073 (struct ng_btsocket_l2cap_raw_auto_discon_timo *) data;
1074
1075 error = ng_btsocket_l2cap_raw_send_sync_ngmsg(pcb,
1076 NGM_L2CAP_NODE_GET_AUTO_DISCON_TIMO,
1077 &p->timeout, sizeof(p->timeout));
1078 } break;
1079
1080 case SIOC_L2CAP_NODE_SET_AUTO_DISCON_TIMO: {
1081 struct ng_btsocket_l2cap_raw_auto_discon_timo *p =
1082 (struct ng_btsocket_l2cap_raw_auto_discon_timo *) data;
1083
1084 if (pcb->flags & NG_BTSOCKET_L2CAP_RAW_PRIVILEGED)
1085 error = ng_btsocket_l2cap_raw_send_ngmsg(pcb->rt->hook,
1086 NGM_L2CAP_NODE_SET_AUTO_DISCON_TIMO,
1087 &p->timeout, sizeof(p->timeout));
1088 else
1089 error = EPERM;
1090 } break;
1091
1092 default:
1093 error = EINVAL;
1094 break;
1095 }
1096
1097 mtx_unlock(&pcb->pcb_mtx);
1098
1099 return (error);
1100 } /* ng_btsocket_l2cap_raw_control */
1101
1102 /*
1103 * Detach and destroy socket
1104 */
1105
1106 void
1107 ng_btsocket_l2cap_raw_detach(struct socket *so)
1108 {
1109 ng_btsocket_l2cap_raw_pcb_p pcb = so2l2cap_raw_pcb(so);
1110
1111 KASSERT(pcb != NULL, ("nt_btsocket_l2cap_raw_detach: pcb == NULL"));
1112 if (ng_btsocket_l2cap_raw_node == NULL)
1113 return;
1114
1115 mtx_lock(&ng_btsocket_l2cap_raw_sockets_mtx);
1116 mtx_lock(&pcb->pcb_mtx);
1117
1118 LIST_REMOVE(pcb, next);
1119
1120 mtx_unlock(&pcb->pcb_mtx);
1121 mtx_unlock(&ng_btsocket_l2cap_raw_sockets_mtx);
1122
1123 mtx_destroy(&pcb->pcb_mtx);
1124
1125 bzero(pcb, sizeof(*pcb));
1126 FREE(pcb, M_NETGRAPH_BTSOCKET_L2CAP_RAW);
1127
1128 so->so_pcb = NULL;
1129 } /* ng_btsocket_l2cap_raw_detach */
1130
1131 /*
1132 * Disconnect socket
1133 */
1134
1135 int
1136 ng_btsocket_l2cap_raw_disconnect(struct socket *so)
1137 {
1138 ng_btsocket_l2cap_raw_pcb_p pcb = so2l2cap_raw_pcb(so);
1139
1140 if (pcb == NULL)
1141 return (EINVAL);
1142 if (ng_btsocket_l2cap_raw_node == NULL)
1143 return (EINVAL);
1144
1145 mtx_lock(&pcb->pcb_mtx);
1146 pcb->rt = NULL;
1147 soisdisconnected(so);
1148 mtx_unlock(&pcb->pcb_mtx);
1149
1150 return (0);
1151 } /* ng_btsocket_l2cap_raw_disconnect */
1152
1153 /*
1154 * Get peer address
1155 */
1156
1157 int
1158 ng_btsocket_l2cap_raw_peeraddr(struct socket *so, struct sockaddr **nam)
1159 {
1160 ng_btsocket_l2cap_raw_pcb_p pcb = so2l2cap_raw_pcb(so);
1161 struct sockaddr_l2cap sa;
1162
1163 if (pcb == NULL)
1164 return (EINVAL);
1165 if (ng_btsocket_l2cap_raw_node == NULL)
1166 return (EINVAL);
1167
1168 mtx_lock(&pcb->pcb_mtx);
1169 bcopy(&pcb->dst, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr));
1170 mtx_unlock(&pcb->pcb_mtx);
1171
1172 sa.l2cap_psm = 0;
1173 sa.l2cap_len = sizeof(sa);
1174 sa.l2cap_family = AF_BLUETOOTH;
1175
1176 *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT);
1177
1178 return ((*nam == NULL)? ENOMEM : 0);
1179 } /* ng_btsocket_l2cap_raw_peeraddr */
1180
1181 /*
1182 * Send data to socket
1183 */
1184
1185 int
1186 ng_btsocket_l2cap_raw_send(struct socket *so, int flags, struct mbuf *m,
1187 struct sockaddr *nam, struct mbuf *control, struct thread *td)
1188 {
1189 NG_FREE_M(m); /* Checks for m != NULL */
1190 NG_FREE_M(control);
1191
1192 return (EOPNOTSUPP);
1193 } /* ng_btsocket_l2cap_raw_send */
1194
1195 /*
1196 * Get socket address
1197 */
1198
1199 int
1200 ng_btsocket_l2cap_raw_sockaddr(struct socket *so, struct sockaddr **nam)
1201 {
1202 ng_btsocket_l2cap_raw_pcb_p pcb = so2l2cap_raw_pcb(so);
1203 struct sockaddr_l2cap sa;
1204
1205 if (pcb == NULL)
1206 return (EINVAL);
1207 if (ng_btsocket_l2cap_raw_node == NULL)
1208 return (EINVAL);
1209
1210 mtx_lock(&pcb->pcb_mtx);
1211 bcopy(&pcb->src, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr));
1212 mtx_unlock(&pcb->pcb_mtx);
1213
1214 sa.l2cap_psm = 0;
1215 sa.l2cap_len = sizeof(sa);
1216 sa.l2cap_family = AF_BLUETOOTH;
1217
1218 *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT);
1219
1220 return ((*nam == NULL)? ENOMEM : 0);
1221 } /* ng_btsocket_l2cap_raw_sockaddr */
1222
1223 /*
1224 * Get next token
1225 */
1226
1227 static void
1228 ng_btsocket_l2cap_raw_get_token(u_int32_t *token)
1229 {
1230 mtx_lock(&ng_btsocket_l2cap_raw_token_mtx);
1231
1232 if (++ ng_btsocket_l2cap_raw_token == 0)
1233 ng_btsocket_l2cap_raw_token = 1;
1234
1235 *token = ng_btsocket_l2cap_raw_token;
1236
1237 mtx_unlock(&ng_btsocket_l2cap_raw_token_mtx);
1238 } /* ng_btsocket_l2cap_raw_get_token */
1239
1240 /*
1241 * Send Netgraph message to the node - do not expect reply
1242 */
1243
1244 static int
1245 ng_btsocket_l2cap_raw_send_ngmsg(hook_p hook, int cmd, void *arg, int arglen)
1246 {
1247 struct ng_mesg *msg = NULL;
1248 int error = 0;
1249
1250 NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, cmd, arglen, M_NOWAIT);
1251 if (msg == NULL)
1252 return (ENOMEM);
1253
1254 if (arg != NULL && arglen > 0)
1255 bcopy(arg, msg->data, arglen);
1256
1257 NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_raw_node, msg, hook, 0);
1258
1259 return (error);
1260 } /* ng_btsocket_l2cap_raw_send_ngmsg */
1261
1262 /*
1263 * Send Netgraph message to the node (no data) and wait for reply
1264 */
1265
1266 static int
1267 ng_btsocket_l2cap_raw_send_sync_ngmsg(ng_btsocket_l2cap_raw_pcb_p pcb,
1268 int cmd, void *rsp, int rsplen)
1269 {
1270 struct ng_mesg *msg = NULL;
1271 int error = 0;
1272
1273 mtx_assert(&pcb->pcb_mtx, MA_OWNED);
1274
1275 NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, cmd, 0, M_NOWAIT);
1276 if (msg == NULL)
1277 return (ENOMEM);
1278
1279 ng_btsocket_l2cap_raw_get_token(&msg->header.token);
1280 pcb->token = msg->header.token;
1281 pcb->msg = NULL;
1282
1283 NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_raw_node, msg,
1284 pcb->rt->hook, 0);
1285 if (error != 0) {
1286 pcb->token = 0;
1287 return (error);
1288 }
1289
1290 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "l2ctl",
1291 ng_btsocket_l2cap_raw_ioctl_timeout * hz);
1292 pcb->token = 0;
1293
1294 if (error != 0)
1295 return (error);
1296
1297 if (pcb->msg != NULL && pcb->msg->header.cmd == cmd)
1298 bcopy(pcb->msg->data, rsp, rsplen);
1299 else
1300 error = EINVAL;
1301
1302 NG_FREE_MSG(pcb->msg); /* checks for != NULL */
1303
1304 return (0);
1305 } /* ng_btsocket_l2cap_raw_send_sync_ngmsg */
1306
DragonFly BSD