7b2bb071139f2e08b678947e60b93e5559ac8350
[dragonfly.git] / sys / netgraph7 / bluetooth / socket / ng_btsocket_l2cap_raw.c
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  * $DragonFly: src/sys/netgraph7/bluetooth/socket/ng_btsocket_l2cap_raw.c,v 1.2 2008/06/26 23:05:40 dillon Exp $
33  */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/bitstring.h>
38 #include <sys/domain.h>
39 #include <sys/errno.h>
40 #include <sys/filedesc.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 "ng_message.h"
54 #include "netgraph.h"
55 #include "bluetooth/include/ng_bluetooth.h"
56 #include "bluetooth/include/ng_hci.h"
57 #include "bluetooth/include/ng_l2cap.h"
58 #include "bluetooth/include/ng_btsocket.h"
59 #include "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_WAITOK | M_NULLOK | 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_WAITOK | M_NULLOK | 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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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_WAITOK | M_NULLOK);
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