ng_btsocket_hci_raw.c revision 109623
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: head/sys/netgraph/bluetooth/socket/ng_btsocket_hci_raw.c 109623 2003-01-21 08:56:16Z alfred $ 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 60MALLOC_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 */ 67static ng_constructor_t ng_btsocket_hci_raw_node_constructor; 68static ng_rcvmsg_t ng_btsocket_hci_raw_node_rcvmsg; 69static ng_shutdown_t ng_btsocket_hci_raw_node_shutdown; 70static ng_newhook_t ng_btsocket_hci_raw_node_newhook; 71static ng_connect_t ng_btsocket_hci_raw_node_connect; 72static ng_rcvdata_t ng_btsocket_hci_raw_node_rcvdata; 73static ng_disconnect_t ng_btsocket_hci_raw_node_disconnect; 74 75static void ng_btsocket_hci_raw_input (void *, int); 76static void ng_btsocket_hci_raw_output(node_p, hook_p, void *, int); 77static void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p, 78 struct mbuf **, 79 struct mbuf *); 80 81/* Netgraph type descriptor */ 82static 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 */ 98extern int ifqmaxlen; 99static u_int32_t ng_btsocket_hci_raw_debug_level; 100static u_int32_t ng_btsocket_hci_raw_ioctl_timeout; 101static node_p ng_btsocket_hci_raw_node; 102static struct ng_bt_itemq ng_btsocket_hci_raw_queue; 103static struct mtx ng_btsocket_hci_raw_queue_mtx; 104static struct task ng_btsocket_hci_raw_task; 105static LIST_HEAD(, ng_btsocket_hci_raw_pcb) ng_btsocket_hci_raw_sockets; 106static struct mtx ng_btsocket_hci_raw_sockets_mtx; 107static u_int32_t ng_btsocket_hci_raw_token; 108static struct mtx ng_btsocket_hci_raw_token_mtx; 109 110/* Sysctl tree */ 111SYSCTL_DECL(_net_bluetooth_hci_sockets); 112SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw, CTLFLAG_RW, 113 0, "Bluetooth raw HCI sockets family"); 114SYSCTL_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"); 117SYSCTL_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"); 120SYSCTL_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"); 123SYSCTL_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"); 126SYSCTL_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 157static int 158ng_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 167static int 168ng_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 203static int 204ng_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 213static int 214ng_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 223static int 224ng_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 235static int 236ng_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, 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 272static int 273ng_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_NOWAIT, 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, 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 328static void 329ng_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 345static int 346ng_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, 0); 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 367static int 368ng_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, 0); 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 412static void 413ng_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 440static void 441ng_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 KASSERT((m0->m_flags & M_PKTHDR), 455 ("%s: m_flags=%#x\n", __func__, m0->m_flags)); 456 457 sa = mtod(nam, struct sockaddr_hci *); 458 459 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 460 461 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 462 /* 463 * If socket was bound then check address and 464 * make sure it matches. 465 */ 466 467 if (pcb->addr.hci_node[0] != 0 && 468 strcmp(sa->hci_node, pcb->addr.hci_node) != 0) 469 continue; 470 471 /* 472 * Check packet agains socket filter 473 * XXX do we have to call m_pullup() here? 474 */ 475 476 switch (*mtod(m0, u_int8_t *)) { 477 case NG_HCI_CMD_PKT: 478 case NG_HCI_ACL_DATA_PKT: 479 case NG_HCI_SCO_DATA_PKT: 480 mask = pcb->filter.packet_mask; 481 bit = *mtod(m0, u_int8_t *) - 1; 482 break; 483 484 case NG_HCI_EVENT_PKT: 485 mask = pcb->filter.event_mask; 486 bit = mtod(m0, ng_hci_event_pkt_t *)->event - 1; 487 break; 488 489 default: 490 KASSERT(0, 491("%s: invalid packet type=%#x\n", __func__, *mtod(m0, u_int8_t *))); 492 493 mask = NULL; 494 bit = 0; 495 break; 496 } 497 498 if (mask == NULL || !bit_test(mask, bit)) 499 continue; 500 501 /* 502 * Make a copy of the packet, append to the socket's 503 * receive queue and wakeup socket. sbappendaddr() 504 * will check if socket has enough buffer space. 505 */ 506 507 m = m_dup(m0, M_NOWAIT); 508 if (m != NULL) { 509 struct mbuf *ctl = NULL; 510 511 ng_btsocket_hci_raw_savctl(pcb, &ctl, m); 512 513 if (sbappendaddr(&pcb->so->so_rcv, 514 (struct sockaddr *) sa, m, ctl)) 515 sorwakeup(pcb->so); 516 else { 517 NG_BTSOCKET_HCI_RAW_WARN( 518"%s: sbappendadd() failed\n", __func__); 519 520 NG_FREE_M(m); 521 NG_FREE_M(ctl); 522 } 523 } 524 } 525 526 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 527 528 NG_FREE_M(nam); 529 NG_FREE_M(m0); 530} /* ng_btsocket_hci_raw_data_input */ 531 532/* 533 * Raw HCI sockets message input routine 534 */ 535 536static void 537ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg) 538{ 539 ng_btsocket_hci_raw_pcb_p pcb = NULL; 540 541 if (msg->header.token != 0) { 542 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 543 544 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 545 if (msg->header.token == pcb->token) { 546 pcb->msg = msg; 547 msg = NULL; 548 wakeup(&pcb->msg); 549 break; 550 } 551 } 552 553 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 554 } 555 556 NG_FREE_MSG(msg); /* checks for != NULL */ 557} /* ng_btsocket_hci_raw_msg_input */ 558 559/* 560 * Raw HCI sockets input routines 561 */ 562 563static void 564ng_btsocket_hci_raw_input(void *context, int pending) 565{ 566 item_p item = NULL; 567 568 for (;;) { 569 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 570 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item); 571 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 572 573 if (item == NULL) 574 break; 575 576 switch(item->el_flags & NGQF_TYPE) { 577 case NGQF_DATA: { 578 struct mbuf *m = NULL; 579 580 NGI_GET_M(item, m); 581 ng_btsocket_hci_raw_data_input(m); 582 } break; 583 584 case NGQF_MESG: { 585 struct ng_mesg *msg = NULL; 586 587 NGI_GET_MSG(item, msg); 588 ng_btsocket_hci_raw_msg_input(msg); 589 } break; 590 591 default: 592 KASSERT(0, 593("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 594 break; 595 } 596 597 NG_FREE_ITEM(item); 598 } 599} /* ng_btsocket_hci_raw_input */ 600 601/* 602 * Raw HCI sockets output routine 603 */ 604 605static void 606ng_btsocket_hci_raw_output(node_p node, hook_p hook, void *arg1, int arg2) 607{ 608 struct mbuf *nam = (struct mbuf *) arg1, *m = NULL; 609 struct sockaddr_hci *sa = NULL; 610 int error; 611 612 m = nam->m_next; 613 nam->m_next = NULL; 614 615 KASSERT((nam->m_type == MT_SONAME), 616 ("%s: m_type=%d\n", __func__, nam->m_type)); 617 KASSERT((m->m_flags & M_PKTHDR), 618 ("%s: m_flags=%#x\n", __func__, m->m_flags)); 619 620 sa = mtod(nam, struct sockaddr_hci *); 621 622 /* 623 * Find downstream hook 624 * XXX For now access node hook list directly. Should be safe because 625 * we used ng_send_fn() and we should have exclusive lock on the node. 626 */ 627 628 LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) { 629 if (hook == NULL || NG_HOOK_NOT_VALID(hook) || 630 NG_NODE_NOT_VALID(NG_PEER_NODE(hook))) 631 continue; 632 633 if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) { 634 NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */ 635 break; 636 } 637 } 638 639 NG_FREE_M(nam); /* check for != NULL */ 640 NG_FREE_M(m); 641} /* ng_btsocket_hci_raw_output */ 642 643/* 644 * Initialize everything 645 */ 646 647void 648ng_btsocket_hci_raw_init(void) 649{ 650 int error = 0; 651 652 ng_btsocket_hci_raw_node = NULL; 653 ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL; 654 ng_btsocket_hci_raw_ioctl_timeout = 5; 655 656 /* Register Netgraph node type */ 657 error = ng_newtype(&typestruct); 658 if (error != 0) { 659 NG_BTSOCKET_HCI_RAW_ALERT( 660"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 661 662 return; 663 } 664 665 /* Create Netgrapg node */ 666 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 667 if (error != 0) { 668 NG_BTSOCKET_HCI_RAW_ALERT( 669"%s: Could not create Netgraph node, error=%d\n", __func__, error); 670 671 ng_btsocket_hci_raw_node = NULL; 672 673 return; 674 } 675 676 error = ng_name_node(ng_btsocket_hci_raw_node, 677 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 678 if (error != 0) { 679 NG_BTSOCKET_HCI_RAW_ALERT( 680"%s: Could not name Netgraph node, error=%d\n", __func__, error); 681 682 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 683 ng_btsocket_hci_raw_node = NULL; 684 685 return; 686 } 687 688 /* Create input queue */ 689 NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, ifqmaxlen); 690 mtx_init(&ng_btsocket_hci_raw_queue_mtx, 691 "btsocks_hci_raw_queue_mtx", NULL, MTX_DEF); 692 TASK_INIT(&ng_btsocket_hci_raw_task, 0, 693 ng_btsocket_hci_raw_input, NULL); 694 695 /* Create list of sockets */ 696 LIST_INIT(&ng_btsocket_hci_raw_sockets); 697 mtx_init(&ng_btsocket_hci_raw_sockets_mtx, 698 "btsocks_hci_raw_sockets_mtx", NULL, MTX_DEF); 699 700 /* Tokens */ 701 ng_btsocket_hci_raw_token = 0; 702 mtx_init(&ng_btsocket_hci_raw_token_mtx, 703 "btsocks_hci_raw_token_mtx", NULL, MTX_DEF); 704} /* ng_btsocket_hci_raw_init */ 705 706/* 707 * Abort connection on socket 708 */ 709 710int 711ng_btsocket_hci_raw_abort(struct socket *so) 712{ 713 soisdisconnected(so); 714 715 return (ng_btsocket_hci_raw_detach(so)); 716} /* ng_btsocket_hci_raw_abort */ 717 718/* 719 * Create new raw HCI socket 720 */ 721 722int 723ng_btsocket_hci_raw_attach(struct socket *so, int proto, struct thread *td) 724{ 725 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 726 int error = 0; 727 728 if (pcb != NULL) 729 return (EISCONN); 730 731 if (ng_btsocket_hci_raw_node == NULL) 732 return (EPROTONOSUPPORT); 733 if (proto != BLUETOOTH_PROTO_HCI) 734 return (EPROTONOSUPPORT); 735 if (so->so_type != SOCK_RAW) 736 return (ESOCKTNOSUPPORT); 737 if ((error = suser(td)) != 0) 738 return (error); 739 740 error = soreserve(so, NG_BTSOCKET_HCI_RAW_SENDSPACE, 741 NG_BTSOCKET_HCI_RAW_RECVSPACE); 742 if (error != 0) 743 return (error); 744 745 MALLOC(pcb, ng_btsocket_hci_raw_pcb_p, sizeof(*pcb), 746 M_NETGRAPH_BTSOCKET_HCI_RAW, M_ZERO); 747 if (pcb == NULL) 748 return (ENOMEM); 749 750 so->so_pcb = (caddr_t) pcb; 751 pcb->so = so; 752 753 /* 754 * Set default socket filter. By default socket only accepts HCI 755 * Command_Complete and Command_Status event packets. 756 */ 757 758 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1); 759 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1); 760 761 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 762 LIST_INSERT_HEAD(&ng_btsocket_hci_raw_sockets, pcb, next); 763 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 764 765 return (0); 766} /* ng_btsocket_hci_raw_attach */ 767 768/* 769 * Bind raw HCI socket 770 */ 771 772int 773ng_btsocket_hci_raw_bind(struct socket *so, struct sockaddr *nam, 774 struct thread *td) 775{ 776 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 777 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 778 779 if (pcb == NULL) 780 return (EINVAL); 781 if (ng_btsocket_hci_raw_node == NULL) 782 return (EINVAL); 783 784 if (sa == NULL) 785 return (EINVAL); 786 if (sa->hci_family != AF_BLUETOOTH) 787 return (EAFNOSUPPORT); 788 if (sa->hci_len != sizeof(*sa)) 789 return (EINVAL); 790 if (sa->hci_node[0] == 0) 791 return (EINVAL); 792 793 bcopy(sa, &pcb->addr, sizeof(pcb->addr)); 794 795 return (0); 796} /* ng_btsocket_hci_raw_bind */ 797 798/* 799 * Connect raw HCI socket 800 */ 801 802int 803ng_btsocket_hci_raw_connect(struct socket *so, struct sockaddr *nam, 804 struct thread *td) 805{ 806 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 807 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 808 809 if (pcb == NULL) 810 return (EINVAL); 811 if (ng_btsocket_hci_raw_node == NULL) 812 return (EINVAL); 813 814 if (sa == NULL) 815 return (EINVAL); 816 if (sa->hci_family != AF_BLUETOOTH) 817 return (EAFNOSUPPORT); 818 if (sa->hci_len != sizeof(*sa)) 819 return (EINVAL); 820 if (sa->hci_node[0] == 0) 821 return (EDESTADDRREQ); 822 if (bcmp(sa, &pcb->addr, sizeof(pcb->addr)) != 0) 823 return (EADDRNOTAVAIL); 824 825 soisconnected(so); 826 827 return (0); 828} /* ng_btsocket_hci_raw_connect */ 829 830/* 831 * Process ioctl on socket 832 */ 833 834int 835ng_btsocket_hci_raw_control(struct socket *so, u_long cmd, caddr_t data, 836 struct ifnet *ifp, struct thread *td) 837{ 838 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 839 char path[NG_NODELEN + 2], 840 *hci_node = (char *) data; 841 struct ng_mesg *msg = NULL; 842 int error = 0; 843 844 if (pcb == NULL) 845 return (EINVAL); 846 if (ng_btsocket_hci_raw_node == NULL) 847 return (EINVAL); 848 849 /* 850 * Make sure caller has provided HCI node name, if not try to 851 * use addr from socket (if socket was bound) 852 */ 853 854 if (hci_node[0] == 0) { 855 if (pcb->addr.hci_node[0] == 0) 856 return (EINVAL); 857 858 bzero(hci_node, sizeof(pcb->addr.hci_node)); 859 strncpy(hci_node,pcb->addr.hci_node,sizeof(pcb->addr.hci_node)); 860 } 861 862 snprintf(path, sizeof(path), "%s:", hci_node); 863 864 switch (cmd) { 865 case SIOC_HCI_RAW_NODE_GET_STATE: { 866 struct ng_btsocket_hci_raw_node_state *p = 867 (struct ng_btsocket_hci_raw_node_state *) data; 868 869 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 870 NGM_HCI_NODE_GET_STATE, 871 &p->state, sizeof(p->state)); 872 } break; 873 874 case SIOC_HCI_RAW_NODE_INIT: 875 error = ng_btsocket_raw_send_ngmsg(path, NGM_HCI_NODE_INIT, 876 NULL, 0); 877 break; 878 879 case SIOC_HCI_RAW_NODE_GET_DEBUG: { 880 struct ng_btsocket_hci_raw_node_debug *p = 881 (struct ng_btsocket_hci_raw_node_debug *) data; 882 883 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 884 NGM_HCI_NODE_GET_DEBUG, 885 &p->debug, sizeof(p->debug)); 886 } break; 887 888 case SIOC_HCI_RAW_NODE_SET_DEBUG: { 889 struct ng_btsocket_hci_raw_node_debug *p = 890 (struct ng_btsocket_hci_raw_node_debug *) data; 891 892 error = ng_btsocket_raw_send_ngmsg(path, NGM_HCI_NODE_SET_DEBUG, 893 &p->debug, sizeof(p->debug)); 894 } break; 895 896 case SIOC_HCI_RAW_NODE_GET_BUFFER: { 897 struct ng_btsocket_hci_raw_node_buffer *p = 898 (struct ng_btsocket_hci_raw_node_buffer *) data; 899 900 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 901 NGM_HCI_NODE_GET_BUFFER, 902 &p->buffer, sizeof(p->buffer)); 903 } break; 904 905 case SIOC_HCI_RAW_NODE_GET_BDADDR: { 906 struct ng_btsocket_hci_raw_node_bdaddr *p = 907 (struct ng_btsocket_hci_raw_node_bdaddr *) data; 908 909 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 910 NGM_HCI_NODE_GET_BDADDR, 911 &p->bdaddr, sizeof(p->bdaddr)); 912 } break; 913 914 case SIOC_HCI_RAW_NODE_GET_FEATURES: { 915 struct ng_btsocket_hci_raw_node_features *p = 916 (struct ng_btsocket_hci_raw_node_features *) data; 917 918 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 919 NGM_HCI_NODE_GET_FEATURES, 920 &p->features, sizeof(p->features)); 921 } break; 922 923 case SIOC_HCI_RAW_NODE_GET_STAT: { 924 struct ng_btsocket_hci_raw_node_stat *p = 925 (struct ng_btsocket_hci_raw_node_stat *) data; 926 927 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 928 NGM_HCI_NODE_GET_STAT, 929 &p->stat, sizeof(p->stat)); 930 } break; 931 932 case SIOC_HCI_RAW_NODE_RESET_STAT: 933 error = ng_btsocket_raw_send_ngmsg(path, 934 NGM_HCI_NODE_RESET_STAT, NULL, 0); 935 break; 936 937 case SIOC_HCI_RAW_NODE_FLUSH_NEIGHBOR_CACHE: 938 error = ng_btsocket_raw_send_ngmsg(path, 939 NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE, NULL, 0); 940 break; 941 942 case SIOC_HCI_RAW_NODE_GET_NEIGHBOR_CACHE: { 943 struct ng_btsocket_hci_raw_node_neighbor_cache *p = 944 (struct ng_btsocket_hci_raw_node_neighbor_cache *) data; 945 ng_hci_node_get_neighbor_cache_ep *p1 = NULL; 946 ng_hci_node_neighbor_cache_entry_ep *p2 = NULL; 947 948 if (p->num_entries <= 0 || 949 p->num_entries > NG_HCI_MAX_NEIGHBOR_NUM || 950 p->entries == NULL) { 951 error = EINVAL; 952 break; 953 } 954 955 ng_btsocket_hci_raw_get_token(&pcb->token); 956 pcb->msg = NULL; 957 958 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, 959 NGM_HCI_NODE_GET_NEIGHBOR_CACHE, 0, 0); 960 if (msg == NULL) { 961 pcb->token = 0; 962 error = ENOMEM; 963 break; 964 } 965 msg->header.token = pcb->token; 966 967 NG_SEND_MSG_PATH(error,ng_btsocket_hci_raw_node,msg,path,NULL); 968 if (error != 0) { 969 pcb->token = 0; 970 break; 971 } 972 973 error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", 974 ng_btsocket_hci_raw_ioctl_timeout * hz); 975 if (error != 0) { 976 pcb->token = 0; 977 break; 978 } 979 980 if (pcb->msg != NULL && 981 pcb->msg->header.cmd == NGM_HCI_NODE_GET_NEIGHBOR_CACHE) { 982 /* Return data back to user space */ 983 p1 = (ng_hci_node_get_neighbor_cache_ep *) 984 (pcb->msg->data); 985 p2 = (ng_hci_node_neighbor_cache_entry_ep *) 986 (p1 + 1); 987 988 p->num_entries = min(p->num_entries, p1->num_entries); 989 if (p->num_entries > 0) 990 error = copyout((caddr_t) p2, 991 (caddr_t) p->entries, 992 p->num_entries * sizeof(*p2)); 993 } else 994 error = EINVAL; 995 996 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 997 pcb->token = 0; 998 }break; 999 1000 case SIOC_HCI_RAW_NODE_GET_CON_LIST: { 1001 struct ng_btsocket_hci_raw_con_list *p = 1002 (struct ng_btsocket_hci_raw_con_list *) data; 1003 ng_hci_node_con_list_ep *p1 = NULL; 1004 ng_hci_node_con_ep *p2 = NULL; 1005 1006 if (p->num_connections == 0 || 1007 p->num_connections > NG_HCI_MAX_CON_NUM || 1008 p->connections == NULL) { 1009 error = EINVAL; 1010 break; 1011 } 1012 1013 ng_btsocket_hci_raw_get_token(&pcb->token); 1014 pcb->msg = NULL; 1015 1016 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_CON_LIST, 1017 0, 0); 1018 if (msg == NULL) { 1019 pcb->token = 0; 1020 error = ENOMEM; 1021 break; 1022 } 1023 msg->header.token = pcb->token; 1024 1025 NG_SEND_MSG_PATH(error,ng_btsocket_hci_raw_node,msg,path,NULL); 1026 if (error != 0) { 1027 pcb->token = 0; 1028 break; 1029 } 1030 1031 error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", 1032 ng_btsocket_hci_raw_ioctl_timeout * hz); 1033 if (error != 0) { 1034 pcb->token = 0; 1035 break; 1036 } 1037 1038 if (pcb->msg != NULL && 1039 pcb->msg->header.cmd == NGM_HCI_NODE_GET_CON_LIST) { 1040 /* Return data back to user space */ 1041 p1 = (ng_hci_node_con_list_ep *)(pcb->msg->data); 1042 p2 = (ng_hci_node_con_ep *)(p1 + 1); 1043 1044 p->num_connections = min(p->num_connections, 1045 p1->num_connections); 1046 if (p->num_connections > 0) 1047 error = copyout((caddr_t) p2, 1048 (caddr_t) p->connections, 1049 p->num_connections * sizeof(*p2)); 1050 } else 1051 error = EINVAL; 1052 1053 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1054 pcb->token = 0; 1055 } break; 1056 1057 case SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK: { 1058 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1059 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1060 data; 1061 1062 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 1063 NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK, 1064 &p->policy_mask, sizeof(p->policy_mask)); 1065 } break; 1066 1067 case SIOC_HCI_RAW_NODE_SET_LINK_POLICY_MASK: { 1068 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1069 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1070 data; 1071 1072 error = ng_btsocket_raw_send_ngmsg(path, 1073 NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK, 1074 &p->policy_mask, sizeof(p->policy_mask)); 1075 } break; 1076 1077 case SIOC_HCI_RAW_NODE_GET_PACKET_MASK: { 1078 struct ng_btsocket_hci_raw_node_packet_mask *p = 1079 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1080 1081 error = ng_btsocket_raw_send_sync_ngmsg(pcb, path, 1082 NGM_HCI_NODE_GET_PACKET_MASK, 1083 &p->packet_mask, sizeof(p->packet_mask)); 1084 } break; 1085 1086 case SIOC_HCI_RAW_NODE_SET_PACKET_MASK: { 1087 struct ng_btsocket_hci_raw_node_packet_mask *p = 1088 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1089 1090 error = ng_btsocket_raw_send_ngmsg(path, 1091 NGM_HCI_NODE_SET_PACKET_MASK, 1092 &p->packet_mask, sizeof(p->packet_mask)); 1093 1094 } break; 1095 1096 default: 1097 error = EINVAL; 1098 break; 1099 } 1100 1101 return (error); 1102} /* ng_btsocket_hci_raw_control */ 1103 1104/* 1105 * Process getsockopt/setsockopt system calls 1106 */ 1107 1108int 1109ng_btsocket_hci_raw_ctloutput(struct socket *so, struct sockopt *sopt) 1110{ 1111 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1112 struct ng_btsocket_hci_raw_filter filter; 1113 int error = 0, dir; 1114 1115 if (pcb == NULL) 1116 return (EINVAL); 1117 if (ng_btsocket_hci_raw_node == NULL) 1118 return (EINVAL); 1119 1120 if (sopt->sopt_level != SOL_HCI_RAW) 1121 return (0); 1122 1123 switch (sopt->sopt_dir) { 1124 case SOPT_GET: 1125 switch (sopt->sopt_name) { 1126 case SO_HCI_RAW_FILTER: 1127 error = sooptcopyout(sopt, &pcb->filter, 1128 sizeof(pcb->filter)); 1129 break; 1130 1131 case SO_HCI_RAW_DIRECTION: 1132 dir = (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION)?1:0; 1133 error = sooptcopyout(sopt, &dir, sizeof(dir)); 1134 break; 1135 1136 default: 1137 error = EINVAL; 1138 break; 1139 } 1140 break; 1141 1142 case SOPT_SET: 1143 switch (sopt->sopt_name) { 1144 case SO_HCI_RAW_FILTER: 1145 error = sooptcopyin(sopt, &filter, sizeof(filter), 1146 sizeof(filter)); 1147 if (error == 0) 1148 bcopy(&filter, &pcb->filter, 1149 sizeof(pcb->filter)); 1150 break; 1151 1152 case SO_HCI_RAW_DIRECTION: 1153 error = sooptcopyin(sopt, &dir, sizeof(dir), 1154 sizeof(dir)); 1155 if (error != 0) 1156 break; 1157 1158 if (dir) 1159 pcb->flags |= NG_BTSOCKET_HCI_RAW_DIRECTION; 1160 else 1161 pcb->flags &= ~NG_BTSOCKET_HCI_RAW_DIRECTION; 1162 break; 1163 1164 default: 1165 error = EINVAL; 1166 break; 1167 } 1168 break; 1169 1170 default: 1171 error = EINVAL; 1172 break; 1173 } 1174 1175 return (error); 1176} /* ng_btsocket_hci_raw_ctloutput */ 1177 1178/* 1179 * Detach raw HCI socket 1180 */ 1181 1182int 1183ng_btsocket_hci_raw_detach(struct socket *so) 1184{ 1185 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1186 1187 if (pcb == NULL) 1188 return (EINVAL); 1189 if (ng_btsocket_hci_raw_node == NULL) 1190 return (EINVAL); 1191 1192 so->so_pcb = NULL; 1193 sotryfree(so); 1194 1195 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 1196 LIST_REMOVE(pcb, next); 1197 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 1198 1199 bzero(pcb, sizeof(*pcb)); 1200 FREE(pcb, M_NETGRAPH_BTSOCKET_HCI_RAW); 1201 1202 return (0); 1203} /* ng_btsocket_hci_raw_detach */ 1204 1205/* 1206 * Disconnect raw HCI socket 1207 */ 1208 1209int 1210ng_btsocket_hci_raw_disconnect(struct socket *so) 1211{ 1212 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1213 1214 if (pcb == NULL) 1215 return (EINVAL); 1216 if (ng_btsocket_hci_raw_node == NULL) 1217 return (EINVAL); 1218 1219 soisdisconnected(so); 1220 1221 return (0); 1222} /* ng_btsocket_hci_raw_disconnect */ 1223 1224/* 1225 * Get socket peer's address 1226 */ 1227 1228int 1229ng_btsocket_hci_raw_peeraddr(struct socket *so, struct sockaddr **nam) 1230{ 1231 return (EOPNOTSUPP); 1232} /* ng_btsocket_hci_raw_peeraddr */ 1233 1234/* 1235 * Send data 1236 */ 1237 1238int 1239ng_btsocket_hci_raw_send(struct socket *so, int flags, struct mbuf *m, 1240 struct sockaddr *sa, struct mbuf *control, struct thread *td) 1241{ 1242 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1243 struct mbuf *nam = NULL; 1244 int error = 0; 1245 1246 if (ng_btsocket_hci_raw_node == NULL) { 1247 error = ENETDOWN; 1248 goto drop; 1249 } 1250 if (pcb == NULL) { 1251 error = EINVAL; 1252 goto drop; 1253 } 1254 if (control != NULL) { 1255 error = EINVAL; 1256 goto drop; 1257 } 1258 1259 if (m->m_pkthdr.len < sizeof(ng_hci_cmd_pkt_t) || 1260 m->m_pkthdr.len > sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE) { 1261 error = EMSGSIZE; 1262 goto drop; 1263 } 1264 1265 if (sa == NULL) { 1266 if (pcb->addr.hci_node[0] == 0) { 1267 error = EDESTADDRREQ; 1268 goto drop; 1269 } 1270 1271 sa = (struct sockaddr *) &pcb->addr; 1272 } 1273 1274 MGET(nam, 0, MT_SONAME); 1275 if (nam == NULL) { 1276 error = ENOBUFS; 1277 goto drop; 1278 } 1279 1280 nam->m_len = sizeof(struct sockaddr_hci); 1281 bcopy(sa,mtod(nam, struct sockaddr_hci *),sizeof(struct sockaddr_hci)); 1282 1283 nam->m_next = m; 1284 m = NULL; 1285 1286 return (ng_send_fn(ng_btsocket_hci_raw_node, NULL, 1287 ng_btsocket_hci_raw_output, nam, 0)); 1288drop: 1289 NG_FREE_M(control); /* NG_FREE_M checks for != NULL */ 1290 NG_FREE_M(nam); 1291 NG_FREE_M(m); 1292 1293 return (error); 1294} /* ng_btsocket_hci_raw_send */ 1295 1296/* 1297 * Get socket address 1298 */ 1299 1300int 1301ng_btsocket_hci_raw_sockaddr(struct socket *so, struct sockaddr **nam) 1302{ 1303 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1304 struct sockaddr_hci sa; 1305 1306 if (pcb == NULL) 1307 return (EINVAL); 1308 if (ng_btsocket_hci_raw_node == NULL) 1309 return (EINVAL); 1310 1311 bzero(&sa, sizeof(sa)); 1312 sa.hci_len = sizeof(sa); 1313 sa.hci_family = AF_BLUETOOTH; 1314 strncpy(sa.hci_node, pcb->addr.hci_node, sizeof(sa.hci_node)); 1315 1316 *nam = dup_sockaddr((struct sockaddr *) &sa, 0); 1317 1318 return ((*nam == NULL)? ENOMEM : 0); 1319} /* ng_btsocket_hci_raw_sockaddr */ 1320 1321