1 /* 2 * ng_btsocket_hci_raw.c 3 * 4 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id: ng_btsocket_hci_raw.c,v 1.3 2002/11/12 22:31:39 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/domain.h> 35 #include <sys/errno.h> 36 #include <sys/filedesc.h> 37 #include <sys/ioccom.h> 38 #include <sys/kernel.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/mbuf.h> 42 #include <sys/mutex.h> 43 #include <sys/protosw.h> 44 #include <sys/queue.h> 45 #include <sys/socket.h> 46 #include <sys/socketvar.h> 47 #include <sys/sysctl.h> 48 #include <sys/taskqueue.h> 49 #include <netgraph/ng_message.h> 50 #include <netgraph/netgraph.h> 51 #include <bitstring.h> 52 #include "ng_bluetooth.h" 53 #include "ng_hci.h" 54 #include "ng_l2cap.h" 55 #include "ng_btsocket.h" 56 #include "ng_btsocket_hci_raw.h" 57 58 /* MALLOC define */ 59 #ifdef NG_SEPARATE_MALLOC 60 MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_HCI_RAW, "netgraph_btsocks_hci_raw", 61 "Netgraph Bluetooth raw HCI sockets"); 62 #else 63 #define M_NETGRAPH_BTSOCKET_HCI_RAW M_NETGRAPH 64 #endif /* NG_SEPARATE_MALLOC */ 65 66 /* Netgraph node methods */ 67 static ng_constructor_t ng_btsocket_hci_raw_node_constructor; 68 static ng_rcvmsg_t ng_btsocket_hci_raw_node_rcvmsg; 69 static ng_shutdown_t ng_btsocket_hci_raw_node_shutdown; 70 static ng_newhook_t ng_btsocket_hci_raw_node_newhook; 71 static ng_connect_t ng_btsocket_hci_raw_node_connect; 72 static ng_rcvdata_t ng_btsocket_hci_raw_node_rcvdata; 73 static ng_disconnect_t ng_btsocket_hci_raw_node_disconnect; 74 75 static void ng_btsocket_hci_raw_input (void *, int); 76 static void ng_btsocket_hci_raw_output(node_p, hook_p, void *, int); 77 static void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p, 78 struct mbuf **, 79 struct mbuf *); 80 81 /* Netgraph type descriptor */ 82 static struct ng_type typestruct = { 83 NG_ABI_VERSION, 84 NG_BTSOCKET_HCI_RAW_NODE_TYPE, /* typename */ 85 NULL, /* modevent */ 86 ng_btsocket_hci_raw_node_constructor, /* constructor */ 87 ng_btsocket_hci_raw_node_rcvmsg, /* control message */ 88 ng_btsocket_hci_raw_node_shutdown, /* destructor */ 89 ng_btsocket_hci_raw_node_newhook, /* new hook */ 90 NULL, /* find hook */ 91 ng_btsocket_hci_raw_node_connect, /* connect hook */ 92 ng_btsocket_hci_raw_node_rcvdata, /* data */ 93 ng_btsocket_hci_raw_node_disconnect, /* disconnect hook */ 94 NULL /* node command list */ 95 }; 96 97 /* Globals */ 98 extern int ifqmaxlen; 99 static u_int32_t ng_btsocket_hci_raw_debug_level; 100 static u_int32_t ng_btsocket_hci_raw_ioctl_timeout; 101 static node_p ng_btsocket_hci_raw_node; 102 static struct ng_bt_itemq ng_btsocket_hci_raw_queue; 103 static struct mtx ng_btsocket_hci_raw_queue_mtx; 104 static struct task ng_btsocket_hci_raw_task; 105 static LIST_HEAD(, ng_btsocket_hci_raw_pcb) ng_btsocket_hci_raw_sockets; 106 static struct mtx ng_btsocket_hci_raw_sockets_mtx; 107 static u_int32_t ng_btsocket_hci_raw_token; 108 static struct mtx ng_btsocket_hci_raw_token_mtx; 109 110 /* Sysctl tree */ 111 SYSCTL_DECL(_net_bluetooth_hci_sockets); 112 SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw, CTLFLAG_RW, 113 0, "Bluetooth raw HCI sockets family"); 114 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, debug_level, CTLFLAG_RW, 115 &ng_btsocket_hci_raw_debug_level, NG_BTSOCKET_WARN_LEVEL, 116 "Bluetooth raw HCI sockets debug level"); 117 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, ioctl_timeout, CTLFLAG_RW, 118 &ng_btsocket_hci_raw_ioctl_timeout, 5, 119 "Bluetooth raw HCI sockets ioctl timeout"); 120 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_len, CTLFLAG_RD, 121 &ng_btsocket_hci_raw_queue.len, 0, 122 "Bluetooth raw HCI sockets input queue length"); 123 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_maxlen, CTLFLAG_RD, 124 &ng_btsocket_hci_raw_queue.maxlen, 0, 125 "Bluetooth raw HCI sockets input queue max. length"); 126 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_drops, CTLFLAG_RD, 127 &ng_btsocket_hci_raw_queue.drops, 0, 128 "Bluetooth raw HCI sockets input queue drops"); 129 130 /* Debug */ 131 #define NG_BTSOCKET_HCI_RAW_INFO \ 132 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_INFO_LEVEL) \ 133 printf 134 135 #define NG_BTSOCKET_HCI_RAW_WARN \ 136 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL) \ 137 printf 138 139 #define NG_BTSOCKET_HCI_RAW_ERR \ 140 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL) \ 141 printf 142 143 #define NG_BTSOCKET_HCI_RAW_ALERT \ 144 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \ 145 printf 146 147 /**************************************************************************** 148 **************************************************************************** 149 ** Netgraph specific 150 **************************************************************************** 151 ****************************************************************************/ 152 153 /* 154 * Netgraph node constructor. Do not allow to create node of this type. 155 */ 156 157 static int 158 ng_btsocket_hci_raw_node_constructor(node_p node) 159 { 160 return (EINVAL); 161 } /* ng_btsocket_hci_raw_node_constructor */ 162 163 /* 164 * Netgraph node destructor. Just let old node go and create new fresh one. 165 */ 166 167 static int 168 ng_btsocket_hci_raw_node_shutdown(node_p node) 169 { 170 int error = 0; 171 172 NG_NODE_UNREF(node); 173 174 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 175 if (error != 0) { 176 NG_BTSOCKET_HCI_RAW_ALERT( 177 "%s: Could not create Netgraph node, error=%d\n", __func__, error); 178 179 ng_btsocket_hci_raw_node = NULL; 180 181 return (ENOMEM); 182 } 183 184 error = ng_name_node(ng_btsocket_hci_raw_node, 185 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 186 if (error != 0) { 187 NG_BTSOCKET_HCI_RAW_ALERT( 188 "%s: Could not name Netgraph node, error=%d\n", __func__, error); 189 190 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 191 ng_btsocket_hci_raw_node = NULL; 192 193 return (EINVAL); 194 } 195 196 return (0); 197 } /* ng_btsocket_hci_raw_node_shutdown */ 198 199 /* 200 * Create new hook. Just say "yes" 201 */ 202 203 static int 204 ng_btsocket_hci_raw_node_newhook(node_p node, hook_p hook, char const *name) 205 { 206 return (0); 207 } /* ng_btsocket_hci_raw_node_newhook */ 208 209 /* 210 * Connect hook. Just say "yes" 211 */ 212 213 static int 214 ng_btsocket_hci_raw_node_connect(hook_p hook) 215 { 216 return (0); 217 } /* ng_btsocket_hci_raw_node_connect */ 218 219 /* 220 * Disconnect hook 221 */ 222 223 static int 224 ng_btsocket_hci_raw_node_disconnect(hook_p hook) 225 { 226 return (0); 227 } /* ng_btsocket_hci_raw_node_disconnect */ 228 229 /* 230 * Receive control message. 231 * Make sure it is a message from HCI node and it is a response. 232 * Enqueue item and schedule input task. 233 */ 234 235 static int 236 ng_btsocket_hci_raw_node_rcvmsg(node_p node, item_p item, hook_p lasthook) 237 { 238 struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 239 int error = 0; 240 241 if (msg != NULL && 242 msg->header.typecookie == NGM_HCI_COOKIE && 243 msg->header.flags & NGF_RESP) { 244 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 245 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 246 NG_BTSOCKET_HCI_RAW_ERR( 247 "%s: Input queue is full\n", __func__); 248 249 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 250 NG_FREE_ITEM(item); 251 error = ENOBUFS; 252 } else { 253 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 254 error = taskqueue_enqueue(taskqueue_swi_giant, 255 &ng_btsocket_hci_raw_task); 256 } 257 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 258 } else { 259 NG_FREE_ITEM(item); 260 error = EINVAL; 261 } 262 263 return (error); 264 } /* ng_btsocket_hci_raw_node_rcvmsg */ 265 266 /* 267 * Receive packet from the one of our hook. 268 * Prepend every packet with sockaddr_hci and record sender's node name. 269 * Enqueue item and schedule input task. 270 */ 271 272 static int 273 ng_btsocket_hci_raw_node_rcvdata(hook_p hook, item_p item) 274 { 275 struct mbuf *nam = NULL; 276 int error; 277 278 MGET(nam, M_DONTWAIT, MT_SONAME); 279 if (nam != NULL) { 280 struct sockaddr_hci *sa = mtod(nam, struct sockaddr_hci *); 281 282 nam->m_len = sizeof(struct sockaddr_hci); 283 284 sa->hci_len = sizeof(*sa); 285 sa->hci_family = AF_BLUETOOTH; 286 strncpy(sa->hci_node, NG_PEER_NODE_NAME(hook), 287 sizeof(sa->hci_node)); 288 sa->hci_node[sizeof(sa->hci_node) - 1] = 0; /* sanity */ 289 290 NGI_GET_M(item, nam->m_next); 291 NGI_M(item) = nam; 292 293 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 294 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 295 NG_BTSOCKET_HCI_RAW_ERR( 296 "%s: Input queue is full\n", __func__); 297 298 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 299 NG_FREE_ITEM(item); 300 error = ENOBUFS; 301 } else { 302 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 303 error = taskqueue_enqueue(taskqueue_swi_giant, 304 &ng_btsocket_hci_raw_task); 305 } 306 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 307 } else { 308 NG_BTSOCKET_HCI_RAW_ERR( 309 "%s: Failed to allocate address mbuf\n", __func__); 310 311 NG_FREE_ITEM(item); 312 error = ENOBUFS; 313 } 314 315 return (error); 316 } /* ng_btsocket_hci_raw_node_rcvdata */ 317 318 /**************************************************************************** 319 **************************************************************************** 320 ** Sockets specific 321 **************************************************************************** 322 ****************************************************************************/ 323 324 /* 325 * Get next token 326 */ 327 328 static void 329 ng_btsocket_hci_raw_get_token(u_int32_t *token) 330 { 331 mtx_lock(&ng_btsocket_hci_raw_token_mtx); 332 333 if (++ ng_btsocket_hci_raw_token == 0) 334 ng_btsocket_hci_raw_token = 1; 335 336 *token = ng_btsocket_hci_raw_token; 337 338 mtx_unlock(&ng_btsocket_hci_raw_token_mtx); 339 } /* ng_btsocket_hci_raw_token */ 340 341 /* 342 * Send Netgraph message to the node - do not expect reply 343 */ 344 345 static int 346 ng_btsocket_raw_send_ngmsg(char *path, int cmd, void *arg, int arglen) 347 { 348 struct ng_mesg *msg = NULL; 349 int error = 0; 350 351 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, arglen, M_WAITOK); 352 if (msg == NULL) 353 return (ENOMEM); 354 355 if (arg != NULL && arglen > 0) 356 bcopy(arg, msg->data, arglen); 357 358 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, NULL); 359 360 return (error); 361 } /* ng_btsocket_raw_send_ngmsg */ 362 363 /* 364 * Send Netgraph message to the node (no data) and wait for reply 365 */ 366 367 static int 368 ng_btsocket_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p pcb, char *path, 369 int cmd, void *rsp, int rsplen) 370 { 371 struct ng_mesg *msg = NULL; 372 int error = 0; 373 374 ng_btsocket_hci_raw_get_token(&pcb->token); 375 pcb->msg = NULL; 376 377 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, 0, M_WAITOK); 378 if (msg == NULL) { 379 pcb->token = 0; 380 return (ENOMEM); 381 } 382 msg->header.token = pcb->token; 383 384 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, NULL); 385 if (error != 0) { 386 pcb->token = 0; 387 return (error); 388 } 389 390 error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", 391 ng_btsocket_hci_raw_ioctl_timeout * hz); 392 if (error != 0) { 393 pcb->token = 0; 394 return (error); 395 } 396 397 if (pcb->msg != NULL && pcb->msg->header.cmd == cmd) 398 bcopy(pcb->msg->data, rsp, rsplen); 399 else 400 error = EINVAL; 401 402 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 403 pcb->token = 0; 404 405 return (0); 406 } /* ng_btsocket_raw_send_sync_ngmsg */ 407 408 /* 409 * Create control information for the packet 410 */ 411 412 static void 413 ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf **ctl, 414 struct mbuf *m) 415 { 416 int dir; 417 struct timeval tv; 418 419 if (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION) { 420 dir = (m->m_flags & M_PROTO1)? 1 : 0; 421 *ctl = sbcreatecontrol((caddr_t) &dir, sizeof(dir), 422 SCM_HCI_RAW_DIRECTION, SOL_HCI_RAW); 423 if (*ctl != NULL) 424 ctl = &((*ctl)->m_next); 425 } 426 427 if (pcb->so->so_options & SO_TIMESTAMP) { 428 microtime(&tv); 429 *ctl = sbcreatecontrol((caddr_t) &tv, sizeof(tv), 430 SCM_TIMESTAMP, SOL_SOCKET); 431 if (*ctl != NULL) 432 ctl = &((*ctl)->m_next); 433 } 434 } /* ng_btsocket_hci_raw_savctl */ 435 436 /* 437 * Raw HCI sockets data input routine 438 */ 439 440 static void 441 ng_btsocket_hci_raw_data_input(struct mbuf *nam) 442 { 443 ng_btsocket_hci_raw_pcb_p pcb = NULL; 444 struct mbuf *m0 = NULL, *m = NULL; 445 struct sockaddr_hci *sa = NULL; 446 bitstr_t *mask = NULL; 447 int bit; 448 449 m0 = nam->m_next; 450 nam->m_next = NULL; 451 452 KASSERT((nam->m_type == MT_SONAME), 453 ("%s: m_type=%d\n", __func__, nam->m_type)); 454 M_ASSERTPKTHDR(m0); 455 456 sa = mtod(nam, struct sockaddr_hci *); 457 458 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 459 460 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 461 /* 462 * If socket was bound then check address and 463 * make sure it matches. 464 */ 465 466 if (pcb->addr.hci_node[0] != 0 && 467 strcmp(sa->hci_node, pcb->addr.hci_node) != 0) 468 continue; 469 470 /* 471 * Check packet agains socket filter 472 * XXX do we have to call m_pullup() here? 473 */ 474 475 switch (*mtod(m0, u_int8_t *)) { 476 case NG_HCI_CMD_PKT: 477 case NG_HCI_ACL_DATA_PKT: 478 case NG_HCI_SCO_DATA_PKT: 479 mask = pcb->filter.packet_mask; 480 bit = *mtod(m0, u_int8_t *) - 1; 481 break; 482 483 case NG_HCI_EVENT_PKT: 484 mask = pcb->filter.event_mask; 485 bit = mtod(m0, ng_hci_event_pkt_t *)->event - 1; 486 break; 487 488 default: 489 KASSERT(0, 490 ("%s: invalid packet type=%#x\n", __func__, *mtod(m0, u_int8_t *))); 491 492 mask = NULL; 493 bit = 0; 494 break; 495 } 496 497 if (mask == NULL || !bit_test(mask, bit)) 498 continue; 499 500 /* 501 * Make a copy of the packet, append to the socket's 502 * receive queue and wakeup socket. sbappendaddr() 503 * will check if socket has enough buffer space. 504 */ 505 506 m = m_dup(m0, M_DONTWAIT); 507 if (m != NULL) { 508 struct mbuf *ctl = NULL; 509 510 ng_btsocket_hci_raw_savctl(pcb, &ctl, m); 511 512 if (sbappendaddr(&pcb->so->so_rcv, 513 (struct sockaddr *) sa, m, ctl)) 514 sorwakeup(pcb->so); 515 else { 516 NG_BTSOCKET_HCI_RAW_WARN( 517 "%s: sbappendadd() failed\n", __func__); 518 519 NG_FREE_M(m); 520 NG_FREE_M(ctl); 521 } 522 } 523 } 524 525 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 526 527 NG_FREE_M(nam); 528 NG_FREE_M(m0); 529 } /* ng_btsocket_hci_raw_data_input */ 530 531 /* 532 * Raw HCI sockets message input routine 533 */ 534 535 static void 536 ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg) 537 { 538 ng_btsocket_hci_raw_pcb_p pcb = NULL; 539 540 if (msg->header.token != 0) { 541 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 542 543 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 544 if (msg->header.token == pcb->token) { 545 pcb->msg = msg; 546 msg = NULL; 547 wakeup(&pcb->msg); 548 break; 549 } 550 } 551 552 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 553 } 554 555 NG_FREE_MSG(msg); /* checks for != NULL */ 556 } /* ng_btsocket_hci_raw_msg_input */ 557 558 /* 559 * Raw HCI sockets input routines 560 */ 561 562 static void 563 ng_btsocket_hci_raw_input(void *context, int pending) 564 { 565 item_p item = NULL; 566 567 for (;;) { 568 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 569 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item); 570 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 571 572 if (item == NULL) 573 break; 574 575 switch(item->el_flags & NGQF_TYPE) { 576 case NGQF_DATA: { 577 struct mbuf *m = NULL; 578 579 NGI_GET_M(item, m); 580 ng_btsocket_hci_raw_data_input(m); 581 } break; 582 583 case NGQF_MESG: { 584 struct ng_mesg *msg = NULL; 585 586 NGI_GET_MSG(item, msg); 587 ng_btsocket_hci_raw_msg_input(msg); 588 } break; 589 590 default: 591 KASSERT(0, 592 ("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 593 break; 594 } 595 596 NG_FREE_ITEM(item); 597 } 598 } /* ng_btsocket_hci_raw_input */ 599 600 /* 601 * Raw HCI sockets output routine 602 */ 603 604 static void 605 ng_btsocket_hci_raw_output(node_p node, hook_p hook, void *arg1, int arg2) 606 { 607 struct mbuf *nam = (struct mbuf *) arg1, *m = NULL; 608 struct sockaddr_hci *sa = NULL; 609 int error; 610 611 m = nam->m_next; 612 nam->m_next = NULL; 613 614 KASSERT((nam->m_type == MT_SONAME), 615 ("%s: m_type=%d\n", __func__, nam->m_type)); 616 M_ASSERTPKTHDR(m); 617 618 sa = mtod(nam, struct sockaddr_hci *); 619 620 /* 621 * Find downstream hook 622 * XXX For now access node hook list directly. Should be safe because 623 * we used ng_send_fn() and we should have exclusive lock on the node. 624 */ 625 626 LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) { 627 if (hook == NULL || NG_HOOK_NOT_VALID(hook) || 628 NG_NODE_NOT_VALID(NG_PEER_NODE(hook))) 629 continue; 630 631 if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) { 632 NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */ 633 break; 634 } 635 } 636 637 NG_FREE_M(nam); /* check for != NULL */ 638 NG_FREE_M(m); 639 } /* ng_btsocket_hci_raw_output */ 640 641 /* 642 * Initialize everything 643 */ 644 645 void 646 ng_btsocket_hci_raw_init(void) 647 { 648 int error = 0; 649 650 ng_btsocket_hci_raw_node = NULL; 651 ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL; 652 ng_btsocket_hci_raw_ioctl_timeout = 5; 653 654 /* Register Netgraph node type */ 655 error = ng_newtype(&typestruct); 656 if (error != 0) { 657 NG_BTSOCKET_HCI_RAW_ALERT( 658 "%s: Could not register Netgraph node type, error=%d\n", __func__, error); 659 660 return; 661 } 662 663 /* Create Netgrapg node */ 664 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 665 if (error != 0) { 666 NG_BTSOCKET_HCI_RAW_ALERT( 667 "%s: Could not create Netgraph node, error=%d\n", __func__, error); 668 669 ng_btsocket_hci_raw_node = NULL; 670 671 return; 672 } 673 674 error = ng_name_node(ng_btsocket_hci_raw_node, 675 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 676 if (error != 0) { 677 NG_BTSOCKET_HCI_RAW_ALERT( 678 "%s: Could not name Netgraph node, error=%d\n", __func__, error); 679 680 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 681 ng_btsocket_hci_raw_node = NULL; 682 683 return; 684 } 685 686 /* Create input queue */ 687 NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, ifqmaxlen); 688 mtx_init(&ng_btsocket_hci_raw_queue_mtx, 689 "btsocks_hci_raw_queue_mtx", NULL, MTX_DEF); 690 TASK_INIT(&ng_btsocket_hci_raw_task, 0, 691 ng_btsocket_hci_raw_input, NULL); 692 693 /* Create list of sockets */ 694 LIST_INIT(&ng_btsocket_hci_raw_sockets); 695 mtx_init(&ng_btsocket_hci_raw_sockets_mtx, 696 "btsocks_hci_raw_sockets_mtx", NULL, MTX_DEF); 697 698 /* Tokens */ 699 ng_btsocket_hci_raw_token = 0; 700 mtx_init(&ng_btsocket_hci_raw_token_mtx, 701 "btsocks_hci_raw_token_mtx", NULL, MTX_DEF); 702 } /* ng_btsocket_hci_raw_init */ 703 704 /* 705 * Abort connection on socket 706 */ 707 708 int 709 ng_btsocket_hci_raw_abort(struct socket *so) 710 { 711 soisdisconnected(so); 712 713 return (ng_btsocket_hci_raw_detach(so)); 714 } /* ng_btsocket_hci_raw_abort */ 715 716 /* 717 * Create new raw HCI socket 718 */ 719 720 int 721 ng_btsocket_hci_raw_attach(struct socket *so, int proto, struct thread *td) 722 { 723 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 724 int error = 0; 725 726 if (pcb != NULL) 727 return (EISCONN); 728 729 if (ng_btsocket_hci_raw_node == NULL) 730 return (EPROTONOSUPPORT); 731 if (proto != BLUETOOTH_PROTO_HCI) 732 return (EPROTONOSUPPORT); 733 if (so->so_type != SOCK_RAW) 734 return (ESOCKTNOSUPPORT); 735 if ((error = suser(td)) != 0) 736 return (error); 737 738 error = soreserve(so, NG_BTSOCKET_HCI_RAW_SENDSPACE, 739 NG_BTSOCKET_HCI_RAW_RECVSPACE); 740 if (error != 0) 741 return (error); 742 743 MALLOC(pcb, ng_btsocket_hci_raw_pcb_p, sizeof(*pcb), 744 M_NETGRAPH_BTSOCKET_HCI_RAW, M_WAITOK | M_ZERO); 745 if (pcb == NULL) 746 return (ENOMEM); 747 748 so->so_pcb = (caddr_t) pcb; 749 pcb->so = so; 750 751 /* 752 * Set default socket filter. By default socket only accepts HCI 753 * Command_Complete and Command_Status event packets. 754 */ 755 756 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1); 757 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1); 758 759 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 760 LIST_INSERT_HEAD(&ng_btsocket_hci_raw_sockets, pcb, next); 761 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 762 763 return (0); 764 } /* ng_btsocket_hci_raw_attach */ 765 766 /* 767 * Bind raw HCI socket 768 */ 769 770 int 771 ng_btsocket_hci_raw_bind(struct socket *so, struct sockaddr *nam, 772 struct thread *td) 773 { 774 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 775 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 776 777 if (pcb == NULL) 778 return (EINVAL); 779 if (ng_btsocket_hci_raw_node == NULL) 780 return (EINVAL); 781 782 if (sa == NULL) 783 return (EINVAL); 784 if (sa->hci_family != AF_BLUETOOTH) 785 return (EAFNOSUPPORT); 786 if (sa->hci_len != sizeof(*sa)) 787 return (EINVAL); 788 if (sa->hci_node[0] == 0) 789 return (EINVAL); 790 791 bcopy(sa, &pcb->addr, sizeof(pcb->addr)); 792 793 return (0); 794 } /* ng_btsocket_hci_raw_bind */ 795 796 /* 797 * Connect raw HCI socket 798 */ 799 800 int 801 ng_btsocket_hci_raw_connect(struct socket *so, struct sockaddr *nam, 802 struct thread *td) 803 { 804 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 805 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 806 807 if (pcb == NULL) 808 return (EINVAL); 809 if (ng_btsocket_hci_raw_node == NULL) 810 return (EINVAL); 811 812 if (sa == NULL) 813 return (EINVAL); 814 if (sa->hci_family != AF_BLUETOOTH) 815 return (EAFNOSUPPORT); 816 if (sa->hci_len != sizeof(*sa)) 817 return (EINVAL); 818 if (sa->hci_node[0] == 0) 819 return (EDESTADDRREQ); 820 if (bcmp(sa, &pcb->addr, sizeof(pcb->addr)) != 0) 821 return (EADDRNOTAVAIL); 822 823 soisconnected(so); 824 825 return (0); 826 } /* ng_btsocket_hci_raw_connect */ 827 828 /* 829 * Process ioctl on socket 830 */ 831 832 int 833 ng_btsocket_hci_raw_control(struct socket *so, u_long cmd, caddr_t data, 834 struct ifnet *ifp, struct thread *td) 835 { 836 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 837 char path[NG_NODELEN + 2], 838 *hci_node = (char *) data; 839 struct ng_mesg *msg = NULL; 840 int error = 0; 841 842 if (pcb == NULL) 843 return (EINVAL); 844 if (ng_btsocket_hci_raw_node == NULL) 845 return (EINVAL); 846 847 /* 848 * Make sure caller has provided HCI node name, if not try to 849 * use addr from socket (if socket was bound) 850 */ 851 852 if (hci_node[0] == 0) { 853 if (pcb->addr.hci_node[0] == 0) 854 return (EINVAL); 855 856 bzero(hci_node, sizeof(pcb->addr.hci_node)); 857 strncpy(hci_node,pcb->addr.hci_node,sizeof(pcb->addr.hci_node)); 858 } 859 860 snprintf(path, sizeof(path), "%s:", hci_node); 861 862 switch (cmd) { 863 case SIOC_HCI_RAW_NODE_GET_STATE: { 864 struct ng_btsocket_hci_raw_node_state *p = 865 (struct ng_btsocket_hci_raw_node_state *) data; 866 867 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 868 NGM_HCI_NODE_GET_STATE, 869 &p->state, sizeof(p->state)); 870 } break; 871 872 case SIOC_HCI_RAW_NODE_INIT: 873 error = ng_btsocket_raw_send_ngmsg(path, NGM_HCI_NODE_INIT, 874 NULL, 0); 875 break; 876 877 case SIOC_HCI_RAW_NODE_GET_DEBUG: { 878 struct ng_btsocket_hci_raw_node_debug *p = 879 (struct ng_btsocket_hci_raw_node_debug *) data; 880 881 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 882 NGM_HCI_NODE_GET_DEBUG, 883 &p->debug, sizeof(p->debug)); 884 } break; 885 886 case SIOC_HCI_RAW_NODE_SET_DEBUG: { 887 struct ng_btsocket_hci_raw_node_debug *p = 888 (struct ng_btsocket_hci_raw_node_debug *) data; 889 890 error = ng_btsocket_raw_send_ngmsg(path, NGM_HCI_NODE_SET_DEBUG, 891 &p->debug, sizeof(p->debug)); 892 } break; 893 894 case SIOC_HCI_RAW_NODE_GET_BUFFER: { 895 struct ng_btsocket_hci_raw_node_buffer *p = 896 (struct ng_btsocket_hci_raw_node_buffer *) data; 897 898 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 899 NGM_HCI_NODE_GET_BUFFER, 900 &p->buffer, sizeof(p->buffer)); 901 } break; 902 903 case SIOC_HCI_RAW_NODE_GET_BDADDR: { 904 struct ng_btsocket_hci_raw_node_bdaddr *p = 905 (struct ng_btsocket_hci_raw_node_bdaddr *) data; 906 907 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 908 NGM_HCI_NODE_GET_BDADDR, 909 &p->bdaddr, sizeof(p->bdaddr)); 910 } break; 911 912 case SIOC_HCI_RAW_NODE_GET_FEATURES: { 913 struct ng_btsocket_hci_raw_node_features *p = 914 (struct ng_btsocket_hci_raw_node_features *) data; 915 916 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 917 NGM_HCI_NODE_GET_FEATURES, 918 &p->features, sizeof(p->features)); 919 } break; 920 921 case SIOC_HCI_RAW_NODE_GET_STAT: { 922 struct ng_btsocket_hci_raw_node_stat *p = 923 (struct ng_btsocket_hci_raw_node_stat *) data; 924 925 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 926 NGM_HCI_NODE_GET_STAT, 927 &p->stat, sizeof(p->stat)); 928 } break; 929 930 case SIOC_HCI_RAW_NODE_RESET_STAT: 931 error = ng_btsocket_raw_send_ngmsg(path, 932 NGM_HCI_NODE_RESET_STAT, NULL, 0); 933 break; 934 935 case SIOC_HCI_RAW_NODE_FLUSH_NEIGHBOR_CACHE: 936 error = ng_btsocket_raw_send_ngmsg(path, 937 NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE, NULL, 0); 938 break; 939 940 case SIOC_HCI_RAW_NODE_GET_NEIGHBOR_CACHE: { 941 struct ng_btsocket_hci_raw_node_neighbor_cache *p = 942 (struct ng_btsocket_hci_raw_node_neighbor_cache *) data; 943 ng_hci_node_get_neighbor_cache_ep *p1 = NULL; 944 ng_hci_node_neighbor_cache_entry_ep *p2 = NULL; 945 946 if (p->num_entries <= 0 || 947 p->num_entries > NG_HCI_MAX_NEIGHBOR_NUM || 948 p->entries == NULL) { 949 error = EINVAL; 950 break; 951 } 952 953 ng_btsocket_hci_raw_get_token(&pcb->token); 954 pcb->msg = NULL; 955 956 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, 957 NGM_HCI_NODE_GET_NEIGHBOR_CACHE, 0, M_WAITOK); 958 if (msg == NULL) { 959 pcb->token = 0; 960 error = ENOMEM; 961 break; 962 } 963 msg->header.token = pcb->token; 964 965 NG_SEND_MSG_PATH(error,ng_btsocket_hci_raw_node,msg,path,NULL); 966 if (error != 0) { 967 pcb->token = 0; 968 break; 969 } 970 971 error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", 972 ng_btsocket_hci_raw_ioctl_timeout * hz); 973 if (error != 0) { 974 pcb->token = 0; 975 break; 976 } 977 978 if (pcb->msg != NULL && 979 pcb->msg->header.cmd == NGM_HCI_NODE_GET_NEIGHBOR_CACHE) { 980 /* Return data back to user space */ 981 p1 = (ng_hci_node_get_neighbor_cache_ep *) 982 (pcb->msg->data); 983 p2 = (ng_hci_node_neighbor_cache_entry_ep *) 984 (p1 + 1); 985 986 p->num_entries = min(p->num_entries, p1->num_entries); 987 if (p->num_entries > 0) 988 error = copyout((caddr_t) p2, 989 (caddr_t) p->entries, 990 p->num_entries * sizeof(*p2)); 991 } else 992 error = EINVAL; 993 994 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 995 pcb->token = 0; 996 }break; 997 998 case SIOC_HCI_RAW_NODE_GET_CON_LIST: { 999 struct ng_btsocket_hci_raw_con_list *p = 1000 (struct ng_btsocket_hci_raw_con_list *) data; 1001 ng_hci_node_con_list_ep *p1 = NULL; 1002 ng_hci_node_con_ep *p2 = NULL; 1003 1004 if (p->num_connections == 0 || 1005 p->num_connections > NG_HCI_MAX_CON_NUM || 1006 p->connections == NULL) { 1007 error = EINVAL; 1008 break; 1009 } 1010 1011 ng_btsocket_hci_raw_get_token(&pcb->token); 1012 pcb->msg = NULL; 1013 1014 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_CON_LIST, 1015 0, M_WAITOK); 1016 if (msg == NULL) { 1017 pcb->token = 0; 1018 error = ENOMEM; 1019 break; 1020 } 1021 msg->header.token = pcb->token; 1022 1023 NG_SEND_MSG_PATH(error,ng_btsocket_hci_raw_node,msg,path,NULL); 1024 if (error != 0) { 1025 pcb->token = 0; 1026 break; 1027 } 1028 1029 error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", 1030 ng_btsocket_hci_raw_ioctl_timeout * hz); 1031 if (error != 0) { 1032 pcb->token = 0; 1033 break; 1034 } 1035 1036 if (pcb->msg != NULL && 1037 pcb->msg->header.cmd == NGM_HCI_NODE_GET_CON_LIST) { 1038 /* Return data back to user space */ 1039 p1 = (ng_hci_node_con_list_ep *)(pcb->msg->data); 1040 p2 = (ng_hci_node_con_ep *)(p1 + 1); 1041 1042 p->num_connections = min(p->num_connections, 1043 p1->num_connections); 1044 if (p->num_connections > 0) 1045 error = copyout((caddr_t) p2, 1046 (caddr_t) p->connections, 1047 p->num_connections * sizeof(*p2)); 1048 } else 1049 error = EINVAL; 1050 1051 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1052 pcb->token = 0; 1053 } break; 1054 1055 case SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK: { 1056 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1057 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1058 data; 1059 1060 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 1061 NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK, 1062 &p->policy_mask, sizeof(p->policy_mask)); 1063 } break; 1064 1065 case SIOC_HCI_RAW_NODE_SET_LINK_POLICY_MASK: { 1066 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1067 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1068 data; 1069 1070 error = ng_btsocket_raw_send_ngmsg(path, 1071 NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK, 1072 &p->policy_mask, sizeof(p->policy_mask)); 1073 } break; 1074 1075 case SIOC_HCI_RAW_NODE_GET_PACKET_MASK: { 1076 struct ng_btsocket_hci_raw_node_packet_mask *p = 1077 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1078 1079 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 1080 NGM_HCI_NODE_GET_PACKET_MASK, 1081 &p->packet_mask, sizeof(p->packet_mask)); 1082 } break; 1083 1084 case SIOC_HCI_RAW_NODE_SET_PACKET_MASK: { 1085 struct ng_btsocket_hci_raw_node_packet_mask *p = 1086 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1087 1088 error = ng_btsocket_raw_send_ngmsg(path, 1089 NGM_HCI_NODE_SET_PACKET_MASK, 1090 &p->packet_mask, sizeof(p->packet_mask)); 1091 1092 } break; 1093 1094 default: 1095 error = EINVAL; 1096 break; 1097 } 1098 1099 return (error); 1100 } /* ng_btsocket_hci_raw_control */ 1101 1102 /* 1103 * Process getsockopt/setsockopt system calls 1104 */ 1105 1106 int 1107 ng_btsocket_hci_raw_ctloutput(struct socket *so, struct sockopt *sopt) 1108 { 1109 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1110 struct ng_btsocket_hci_raw_filter filter; 1111 int error = 0, dir; 1112 1113 if (pcb == NULL) 1114 return (EINVAL); 1115 if (ng_btsocket_hci_raw_node == NULL) 1116 return (EINVAL); 1117 1118 if (sopt->sopt_level != SOL_HCI_RAW) 1119 return (0); 1120 1121 switch (sopt->sopt_dir) { 1122 case SOPT_GET: 1123 switch (sopt->sopt_name) { 1124 case SO_HCI_RAW_FILTER: 1125 error = sooptcopyout(sopt, &pcb->filter, 1126 sizeof(pcb->filter)); 1127 break; 1128 1129 case SO_HCI_RAW_DIRECTION: 1130 dir = (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION)?1:0; 1131 error = sooptcopyout(sopt, &dir, sizeof(dir)); 1132 break; 1133 1134 default: 1135 error = EINVAL; 1136 break; 1137 } 1138 break; 1139 1140 case SOPT_SET: 1141 switch (sopt->sopt_name) { 1142 case SO_HCI_RAW_FILTER: 1143 error = sooptcopyin(sopt, &filter, sizeof(filter), 1144 sizeof(filter)); 1145 if (error == 0) 1146 bcopy(&filter, &pcb->filter, 1147 sizeof(pcb->filter)); 1148 break; 1149 1150 case SO_HCI_RAW_DIRECTION: 1151 error = sooptcopyin(sopt, &dir, sizeof(dir), 1152 sizeof(dir)); 1153 if (error != 0) 1154 break; 1155 1156 if (dir) 1157 pcb->flags |= NG_BTSOCKET_HCI_RAW_DIRECTION; 1158 else 1159 pcb->flags &= ~NG_BTSOCKET_HCI_RAW_DIRECTION; 1160 break; 1161 1162 default: 1163 error = EINVAL; 1164 break; 1165 } 1166 break; 1167 1168 default: 1169 error = EINVAL; 1170 break; 1171 } 1172 1173 return (error); 1174 } /* ng_btsocket_hci_raw_ctloutput */ 1175 1176 /* 1177 * Detach raw HCI socket 1178 */ 1179 1180 int 1181 ng_btsocket_hci_raw_detach(struct socket *so) 1182 { 1183 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1184 1185 if (pcb == NULL) 1186 return (EINVAL); 1187 if (ng_btsocket_hci_raw_node == NULL) 1188 return (EINVAL); 1189 1190 so->so_pcb = NULL; 1191 sotryfree(so); 1192 1193 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 1194 LIST_REMOVE(pcb, next); 1195 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 1196 1197 bzero(pcb, sizeof(*pcb)); 1198 FREE(pcb, M_NETGRAPH_BTSOCKET_HCI_RAW); 1199 1200 return (0); 1201 } /* ng_btsocket_hci_raw_detach */ 1202 1203 /* 1204 * Disconnect raw HCI socket 1205 */ 1206 1207 int 1208 ng_btsocket_hci_raw_disconnect(struct socket *so) 1209 { 1210 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1211 1212 if (pcb == NULL) 1213 return (EINVAL); 1214 if (ng_btsocket_hci_raw_node == NULL) 1215 return (EINVAL); 1216 1217 soisdisconnected(so); 1218 1219 return (0); 1220 } /* ng_btsocket_hci_raw_disconnect */ 1221 1222 /* 1223 * Get socket peer's address 1224 */ 1225 1226 int 1227 ng_btsocket_hci_raw_peeraddr(struct socket *so, struct sockaddr **nam) 1228 { 1229 return (EOPNOTSUPP); 1230 } /* ng_btsocket_hci_raw_peeraddr */ 1231 1232 /* 1233 * Send data 1234 */ 1235 1236 int 1237 ng_btsocket_hci_raw_send(struct socket *so, int flags, struct mbuf *m, 1238 struct sockaddr *sa, struct mbuf *control, struct thread *td) 1239 { 1240 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1241 struct mbuf *nam = NULL; 1242 int error = 0; 1243 1244 if (ng_btsocket_hci_raw_node == NULL) { 1245 error = ENETDOWN; 1246 goto drop; 1247 } 1248 if (pcb == NULL) { 1249 error = EINVAL; 1250 goto drop; 1251 } 1252 if (control != NULL) { 1253 error = EINVAL; 1254 goto drop; 1255 } 1256 1257 if (m->m_pkthdr.len < sizeof(ng_hci_cmd_pkt_t) || 1258 m->m_pkthdr.len > sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE) { 1259 error = EMSGSIZE; 1260 goto drop; 1261 } 1262 1263 if (sa == NULL) { 1264 if (pcb->addr.hci_node[0] == 0) { 1265 error = EDESTADDRREQ; 1266 goto drop; 1267 } 1268 1269 sa = (struct sockaddr *) &pcb->addr; 1270 } 1271 1272 MGET(nam, M_TRYWAIT, MT_SONAME); 1273 if (nam == NULL) { 1274 error = ENOBUFS; 1275 goto drop; 1276 } 1277 1278 nam->m_len = sizeof(struct sockaddr_hci); 1279 bcopy(sa,mtod(nam, struct sockaddr_hci *),sizeof(struct sockaddr_hci)); 1280 1281 nam->m_next = m; 1282 m = NULL; 1283 1284 return (ng_send_fn(ng_btsocket_hci_raw_node, NULL, 1285 ng_btsocket_hci_raw_output, nam, 0)); 1286 drop: 1287 NG_FREE_M(control); /* NG_FREE_M checks for != NULL */ 1288 NG_FREE_M(nam); 1289 NG_FREE_M(m); 1290 1291 return (error); 1292 } /* ng_btsocket_hci_raw_send */ 1293 1294 /* 1295 * Get socket address 1296 */ 1297 1298 int 1299 ng_btsocket_hci_raw_sockaddr(struct socket *so, struct sockaddr **nam) 1300 { 1301 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1302 struct sockaddr_hci sa; 1303 1304 if (pcb == NULL) 1305 return (EINVAL); 1306 if (ng_btsocket_hci_raw_node == NULL) 1307 return (EINVAL); 1308 1309 bzero(&sa, sizeof(sa)); 1310 sa.hci_len = sizeof(sa); 1311 sa.hci_family = AF_BLUETOOTH; 1312 strncpy(sa.hci_node, pcb->addr.hci_node, sizeof(sa.hci_node)); 1313 1314 *nam = dup_sockaddr((struct sockaddr *) &sa, 0); 1315 1316 return ((*nam == NULL)? ENOMEM : 0); 1317 } /* ng_btsocket_hci_raw_sockaddr */ 1318 1319