1 /* 2 * ng_btsocket_hci_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_hci_raw.c,v 1.14 2003/09/14 23:29:06 max Exp $ 31 * $FreeBSD: src/sys/netgraph/bluetooth/socket/ng_btsocket_hci_raw.c,v 1.23 2006/11/06 13:42:04 rwatson Exp $ 32 * $DragonFly: src/sys/netgraph7/bluetooth/socket/ng_btsocket_hci_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/endian.h> 40 #include <sys/errno.h> 41 #include <sys/filedesc.h> 42 #include <sys/ioccom.h> 43 #include <sys/kernel.h> 44 #include <sys/lock.h> 45 #include <sys/malloc.h> 46 #include <sys/mbuf.h> 47 #include <sys/mutex.h> 48 #include <sys/priv.h> 49 #include <sys/protosw.h> 50 #include <sys/queue.h> 51 #include <sys/socket.h> 52 #include <sys/socketvar.h> 53 #include <sys/sysctl.h> 54 #include <sys/taskqueue.h> 55 #include "ng_message.h" 56 #include "netgraph.h" 57 #include "bluetooth/include/ng_bluetooth.h" 58 #include "bluetooth/include/ng_hci.h" 59 #include "bluetooth/include/ng_l2cap.h" 60 #include "bluetooth/include/ng_btsocket.h" 61 #include "bluetooth/include/ng_btsocket_hci_raw.h" 62 63 /* MALLOC define */ 64 #ifdef NG_SEPARATE_MALLOC 65 MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_HCI_RAW, "netgraph_btsocks_hci_raw", 66 "Netgraph Bluetooth raw HCI sockets"); 67 #else 68 #define M_NETGRAPH_BTSOCKET_HCI_RAW M_NETGRAPH 69 #endif /* NG_SEPARATE_MALLOC */ 70 71 /* Netgraph node methods */ 72 static ng_constructor_t ng_btsocket_hci_raw_node_constructor; 73 static ng_rcvmsg_t ng_btsocket_hci_raw_node_rcvmsg; 74 static ng_shutdown_t ng_btsocket_hci_raw_node_shutdown; 75 static ng_newhook_t ng_btsocket_hci_raw_node_newhook; 76 static ng_connect_t ng_btsocket_hci_raw_node_connect; 77 static ng_rcvdata_t ng_btsocket_hci_raw_node_rcvdata; 78 static ng_disconnect_t ng_btsocket_hci_raw_node_disconnect; 79 80 static void ng_btsocket_hci_raw_input (void *, int); 81 static void ng_btsocket_hci_raw_output(node_p, hook_p, void *, int); 82 static void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p, 83 struct mbuf **, 84 struct mbuf *); 85 static int ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p, 86 struct mbuf *, int); 87 88 #define ng_btsocket_hci_raw_wakeup_input_task() \ 89 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_hci_raw_task) 90 91 /* Security filter */ 92 struct ng_btsocket_hci_raw_sec_filter { 93 bitstr_t bit_decl(events, 0xff); 94 bitstr_t bit_decl(commands[0x3f], 0x3ff); 95 }; 96 97 /* Netgraph type descriptor */ 98 static struct ng_type typestruct = { 99 .version = NG_ABI_VERSION, 100 .name = NG_BTSOCKET_HCI_RAW_NODE_TYPE, 101 .constructor = ng_btsocket_hci_raw_node_constructor, 102 .rcvmsg = ng_btsocket_hci_raw_node_rcvmsg, 103 .shutdown = ng_btsocket_hci_raw_node_shutdown, 104 .newhook = ng_btsocket_hci_raw_node_newhook, 105 .connect = ng_btsocket_hci_raw_node_connect, 106 .rcvdata = ng_btsocket_hci_raw_node_rcvdata, 107 .disconnect = ng_btsocket_hci_raw_node_disconnect, 108 }; 109 110 /* Globals */ 111 extern int ifqmaxlen; 112 static u_int32_t ng_btsocket_hci_raw_debug_level; 113 static u_int32_t ng_btsocket_hci_raw_ioctl_timeout; 114 static node_p ng_btsocket_hci_raw_node; 115 static struct ng_bt_itemq ng_btsocket_hci_raw_queue; 116 static struct mtx ng_btsocket_hci_raw_queue_mtx; 117 static struct task ng_btsocket_hci_raw_task; 118 static LIST_HEAD(, ng_btsocket_hci_raw_pcb) ng_btsocket_hci_raw_sockets; 119 static struct mtx ng_btsocket_hci_raw_sockets_mtx; 120 static u_int32_t ng_btsocket_hci_raw_token; 121 static struct mtx ng_btsocket_hci_raw_token_mtx; 122 static struct ng_btsocket_hci_raw_sec_filter *ng_btsocket_hci_raw_sec_filter; 123 124 /* Sysctl tree */ 125 SYSCTL_DECL(_net_bluetooth_hci_sockets); 126 SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw, CTLFLAG_RW, 127 0, "Bluetooth raw HCI sockets family"); 128 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, debug_level, CTLFLAG_RW, 129 &ng_btsocket_hci_raw_debug_level, NG_BTSOCKET_WARN_LEVEL, 130 "Bluetooth raw HCI sockets debug level"); 131 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, ioctl_timeout, CTLFLAG_RW, 132 &ng_btsocket_hci_raw_ioctl_timeout, 5, 133 "Bluetooth raw HCI sockets ioctl timeout"); 134 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_len, CTLFLAG_RD, 135 &ng_btsocket_hci_raw_queue.len, 0, 136 "Bluetooth raw HCI sockets input queue length"); 137 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_maxlen, CTLFLAG_RD, 138 &ng_btsocket_hci_raw_queue.maxlen, 0, 139 "Bluetooth raw HCI sockets input queue max. length"); 140 SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_drops, CTLFLAG_RD, 141 &ng_btsocket_hci_raw_queue.drops, 0, 142 "Bluetooth raw HCI sockets input queue drops"); 143 144 /* Debug */ 145 #define NG_BTSOCKET_HCI_RAW_INFO \ 146 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_INFO_LEVEL) \ 147 printf 148 149 #define NG_BTSOCKET_HCI_RAW_WARN \ 150 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL) \ 151 printf 152 153 #define NG_BTSOCKET_HCI_RAW_ERR \ 154 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL) \ 155 printf 156 157 #define NG_BTSOCKET_HCI_RAW_ALERT \ 158 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \ 159 printf 160 161 /**************************************************************************** 162 **************************************************************************** 163 ** Netgraph specific 164 **************************************************************************** 165 ****************************************************************************/ 166 167 /* 168 * Netgraph node constructor. Do not allow to create node of this type. 169 */ 170 171 static int 172 ng_btsocket_hci_raw_node_constructor(node_p node) 173 { 174 return (EINVAL); 175 } /* ng_btsocket_hci_raw_node_constructor */ 176 177 /* 178 * Netgraph node destructor. Just let old node go and create new fresh one. 179 */ 180 181 static int 182 ng_btsocket_hci_raw_node_shutdown(node_p node) 183 { 184 int error = 0; 185 186 NG_NODE_UNREF(node); 187 188 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 189 if (error != 0) { 190 NG_BTSOCKET_HCI_RAW_ALERT( 191 "%s: Could not create Netgraph node, error=%d\n", __func__, error); 192 193 ng_btsocket_hci_raw_node = NULL; 194 195 return (ENOMEM); 196 } 197 198 error = ng_name_node(ng_btsocket_hci_raw_node, 199 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 200 if (error != 0) { 201 NG_BTSOCKET_HCI_RAW_ALERT( 202 "%s: Could not name Netgraph node, error=%d\n", __func__, error); 203 204 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 205 ng_btsocket_hci_raw_node = NULL; 206 207 return (EINVAL); 208 } 209 210 return (0); 211 } /* ng_btsocket_hci_raw_node_shutdown */ 212 213 /* 214 * Create new hook. Just say "yes" 215 */ 216 217 static int 218 ng_btsocket_hci_raw_node_newhook(node_p node, hook_p hook, char const *name) 219 { 220 return (0); 221 } /* ng_btsocket_hci_raw_node_newhook */ 222 223 /* 224 * Connect hook. Just say "yes" 225 */ 226 227 static int 228 ng_btsocket_hci_raw_node_connect(hook_p hook) 229 { 230 return (0); 231 } /* ng_btsocket_hci_raw_node_connect */ 232 233 /* 234 * Disconnect hook 235 */ 236 237 static int 238 ng_btsocket_hci_raw_node_disconnect(hook_p hook) 239 { 240 return (0); 241 } /* ng_btsocket_hci_raw_node_disconnect */ 242 243 /* 244 * Receive control message. 245 * Make sure it is a message from HCI node and it is a response. 246 * Enqueue item and schedule input task. 247 */ 248 249 static int 250 ng_btsocket_hci_raw_node_rcvmsg(node_p node, item_p item, hook_p lasthook) 251 { 252 struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 253 int error = 0; 254 255 /* 256 * Check for empty sockets list creates LOR when both sender and 257 * receiver device are connected to the same host, so remove it 258 * for now 259 */ 260 261 if (msg != NULL && 262 (msg->header.typecookie == NGM_HCI_COOKIE || 263 msg->header.typecookie == NGM_GENERIC_COOKIE) && 264 msg->header.flags & NGF_RESP) { 265 if (msg->header.token == 0) { 266 NG_FREE_ITEM(item); 267 return (0); 268 } 269 270 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 271 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 272 NG_BTSOCKET_HCI_RAW_ERR( 273 "%s: Input queue is full\n", __func__); 274 275 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 276 NG_FREE_ITEM(item); 277 error = ENOBUFS; 278 } else { 279 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 280 error = ng_btsocket_hci_raw_wakeup_input_task(); 281 } 282 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 283 } else { 284 NG_FREE_ITEM(item); 285 error = EINVAL; 286 } 287 288 return (error); 289 } /* ng_btsocket_hci_raw_node_rcvmsg */ 290 291 /* 292 * Receive packet from the one of our hook. 293 * Prepend every packet with sockaddr_hci and record sender's node name. 294 * Enqueue item and schedule input task. 295 */ 296 297 static int 298 ng_btsocket_hci_raw_node_rcvdata(hook_p hook, item_p item) 299 { 300 struct mbuf *nam = NULL; 301 int error; 302 303 /* 304 * Check for empty sockets list creates LOR when both sender and 305 * receiver device are connected to the same host, so remove it 306 * for now 307 */ 308 309 MGET(nam, MB_DONTWAIT, MT_SONAME); 310 if (nam != NULL) { 311 struct sockaddr_hci *sa = mtod(nam, struct sockaddr_hci *); 312 313 nam->m_len = sizeof(struct sockaddr_hci); 314 315 sa->hci_len = sizeof(*sa); 316 sa->hci_family = AF_BLUETOOTH; 317 strlcpy(sa->hci_node, NG_PEER_NODE_NAME(hook), 318 sizeof(sa->hci_node)); 319 320 NGI_GET_M(item, nam->m_next); 321 NGI_M(item) = nam; 322 323 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 324 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 325 NG_BTSOCKET_HCI_RAW_ERR( 326 "%s: Input queue is full\n", __func__); 327 328 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 329 NG_FREE_ITEM(item); 330 error = ENOBUFS; 331 } else { 332 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 333 error = ng_btsocket_hci_raw_wakeup_input_task(); 334 } 335 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 336 } else { 337 NG_BTSOCKET_HCI_RAW_ERR( 338 "%s: Failed to allocate address mbuf\n", __func__); 339 340 NG_FREE_ITEM(item); 341 error = ENOBUFS; 342 } 343 344 return (error); 345 } /* ng_btsocket_hci_raw_node_rcvdata */ 346 347 /**************************************************************************** 348 **************************************************************************** 349 ** Sockets specific 350 **************************************************************************** 351 ****************************************************************************/ 352 353 /* 354 * Get next token. We need token to avoid theoretical race where process 355 * submits ioctl() message then interrupts ioctl() and re-submits another 356 * ioctl() on the same socket *before* first ioctl() complete. 357 */ 358 359 static void 360 ng_btsocket_hci_raw_get_token(u_int32_t *token) 361 { 362 mtx_lock(&ng_btsocket_hci_raw_token_mtx); 363 364 if (++ ng_btsocket_hci_raw_token == 0) 365 ng_btsocket_hci_raw_token = 1; 366 367 *token = ng_btsocket_hci_raw_token; 368 369 mtx_unlock(&ng_btsocket_hci_raw_token_mtx); 370 } /* ng_btsocket_hci_raw_get_token */ 371 372 /* 373 * Send Netgraph message to the node - do not expect reply 374 */ 375 376 static int 377 ng_btsocket_hci_raw_send_ngmsg(char *path, int cmd, void *arg, int arglen) 378 { 379 struct ng_mesg *msg = NULL; 380 int error = 0; 381 382 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, arglen, M_WAITOK | M_NULLOK); 383 if (msg == NULL) 384 return (ENOMEM); 385 386 if (arg != NULL && arglen > 0) 387 bcopy(arg, msg->data, arglen); 388 389 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 390 391 return (error); 392 } /* ng_btsocket_hci_raw_send_ngmsg */ 393 394 /* 395 * Send Netgraph message to the node (no data) and wait for reply 396 */ 397 398 static int 399 ng_btsocket_hci_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p pcb, char *path, 400 int cmd, void *rsp, int rsplen) 401 { 402 struct ng_mesg *msg = NULL; 403 int error = 0; 404 405 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 406 407 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, 0, M_WAITOK | M_NULLOK); 408 if (msg == NULL) 409 return (ENOMEM); 410 411 ng_btsocket_hci_raw_get_token(&msg->header.token); 412 pcb->token = msg->header.token; 413 pcb->msg = NULL; 414 415 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 416 if (error != 0) { 417 pcb->token = 0; 418 return (error); 419 } 420 421 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "hcictl", 422 ng_btsocket_hci_raw_ioctl_timeout * hz); 423 pcb->token = 0; 424 425 if (error != 0) 426 return (error); 427 428 if (pcb->msg != NULL && pcb->msg->header.cmd == cmd) 429 bcopy(pcb->msg->data, rsp, rsplen); 430 else 431 error = EINVAL; 432 433 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 434 435 return (0); 436 } /* ng_btsocket_hci_raw_send_sync_ngmsg */ 437 438 /* 439 * Create control information for the packet 440 */ 441 442 static void 443 ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf **ctl, 444 struct mbuf *m) 445 { 446 int dir; 447 struct timeval tv; 448 449 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 450 451 if (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION) { 452 dir = (m->m_flags & M_PROTO1)? 1 : 0; 453 *ctl = sbcreatecontrol((caddr_t) &dir, sizeof(dir), 454 SCM_HCI_RAW_DIRECTION, SOL_HCI_RAW); 455 if (*ctl != NULL) 456 ctl = &((*ctl)->m_next); 457 } 458 459 if (pcb->so->so_options & SO_TIMESTAMP) { 460 microtime(&tv); 461 *ctl = sbcreatecontrol((caddr_t) &tv, sizeof(tv), 462 SCM_TIMESTAMP, SOL_SOCKET); 463 if (*ctl != NULL) 464 ctl = &((*ctl)->m_next); 465 } 466 } /* ng_btsocket_hci_raw_savctl */ 467 468 /* 469 * Raw HCI sockets data input routine 470 */ 471 472 static void 473 ng_btsocket_hci_raw_data_input(struct mbuf *nam) 474 { 475 ng_btsocket_hci_raw_pcb_p pcb = NULL; 476 struct mbuf *m0 = NULL, *m = NULL; 477 struct sockaddr_hci *sa = NULL; 478 479 m0 = nam->m_next; 480 nam->m_next = NULL; 481 482 KASSERT((nam->m_type == MT_SONAME), 483 ("%s: m_type=%d\n", __func__, nam->m_type)); 484 KASSERT((m0->m_flags & M_PKTHDR), 485 ("%s: m_flags=%#x\n", __func__, m0->m_flags)); 486 487 sa = mtod(nam, struct sockaddr_hci *); 488 489 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 490 491 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 492 493 mtx_lock(&pcb->pcb_mtx); 494 495 /* 496 * If socket was bound then check address and 497 * make sure it matches. 498 */ 499 500 if (pcb->addr.hci_node[0] != 0 && 501 strcmp(sa->hci_node, pcb->addr.hci_node) != 0) 502 goto next; 503 504 /* 505 * Check packet against filters 506 * XXX do we have to call m_pullup() here? 507 */ 508 509 if (ng_btsocket_hci_raw_filter(pcb, m0, 1) != 0) 510 goto next; 511 512 /* 513 * Make a copy of the packet, append to the socket's 514 * receive queue and wakeup socket. sbappendaddr() 515 * will check if socket has enough buffer space. 516 */ 517 518 m = m_dup(m0, MB_DONTWAIT); 519 if (m != NULL) { 520 struct mbuf *ctl = NULL; 521 522 ng_btsocket_hci_raw_savctl(pcb, &ctl, m); 523 524 if (sbappendaddr(&pcb->so->so_rcv, 525 (struct sockaddr *) sa, m, ctl)) 526 sorwakeup(pcb->so); 527 else { 528 NG_BTSOCKET_HCI_RAW_INFO( 529 "%s: sbappendaddr() failed\n", __func__); 530 531 NG_FREE_M(m); 532 NG_FREE_M(ctl); 533 } 534 } 535 next: 536 mtx_unlock(&pcb->pcb_mtx); 537 } 538 539 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 540 541 NG_FREE_M(nam); 542 NG_FREE_M(m0); 543 } /* ng_btsocket_hci_raw_data_input */ 544 545 /* 546 * Raw HCI sockets message input routine 547 */ 548 549 static void 550 ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg) 551 { 552 ng_btsocket_hci_raw_pcb_p pcb = NULL; 553 554 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 555 556 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 557 mtx_lock(&pcb->pcb_mtx); 558 559 if (msg->header.token == pcb->token) { 560 pcb->msg = msg; 561 wakeup(&pcb->msg); 562 563 mtx_unlock(&pcb->pcb_mtx); 564 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 565 566 return; 567 } 568 569 mtx_unlock(&pcb->pcb_mtx); 570 } 571 572 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 573 574 NG_FREE_MSG(msg); /* checks for != NULL */ 575 } /* ng_btsocket_hci_raw_msg_input */ 576 577 /* 578 * Raw HCI sockets input routines 579 */ 580 581 static void 582 ng_btsocket_hci_raw_input(void *context, int pending) 583 { 584 item_p item = NULL; 585 586 for (;;) { 587 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 588 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item); 589 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 590 591 if (item == NULL) 592 break; 593 594 switch(item->el_flags & NGQF_TYPE) { 595 case NGQF_DATA: { 596 struct mbuf *m = NULL; 597 598 NGI_GET_M(item, m); 599 ng_btsocket_hci_raw_data_input(m); 600 } break; 601 602 case NGQF_MESG: { 603 struct ng_mesg *msg = NULL; 604 605 NGI_GET_MSG(item, msg); 606 ng_btsocket_hci_raw_msg_input(msg); 607 } break; 608 609 default: 610 KASSERT(0, 611 ("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 612 break; 613 } 614 615 NG_FREE_ITEM(item); 616 } 617 } /* ng_btsocket_hci_raw_input */ 618 619 /* 620 * Raw HCI sockets output routine 621 */ 622 623 static void 624 ng_btsocket_hci_raw_output(node_p node, hook_p hook, void *arg1, int arg2) 625 { 626 struct mbuf *nam = (struct mbuf *) arg1, *m = NULL; 627 struct sockaddr_hci *sa = NULL; 628 int error; 629 630 m = nam->m_next; 631 nam->m_next = NULL; 632 633 KASSERT((nam->m_type == MT_SONAME), 634 ("%s: m_type=%d\n", __func__, nam->m_type)); 635 KASSERT((m->m_flags & M_PKTHDR), 636 ("%s: m_flags=%#x\n", __func__, m->m_flags)); 637 638 sa = mtod(nam, struct sockaddr_hci *); 639 640 /* 641 * Find downstream hook 642 * XXX For now access node hook list directly. Should be safe because 643 * we used ng_send_fn() and we should have exclusive lock on the node. 644 */ 645 646 LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) { 647 if (hook == NULL || NG_HOOK_NOT_VALID(hook) || 648 NG_NODE_NOT_VALID(NG_PEER_NODE(hook))) 649 continue; 650 651 if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) { 652 NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */ 653 break; 654 } 655 } 656 657 NG_FREE_M(nam); /* check for != NULL */ 658 NG_FREE_M(m); 659 } /* ng_btsocket_hci_raw_output */ 660 661 /* 662 * Check frame against security and socket filters. 663 * d (direction bit) == 1 means incoming frame. 664 */ 665 666 static int 667 ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf *m, int d) 668 { 669 int type, event, opcode; 670 671 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 672 673 switch ((type = *mtod(m, u_int8_t *))) { 674 case NG_HCI_CMD_PKT: 675 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) { 676 opcode = le16toh(mtod(m, ng_hci_cmd_pkt_t *)->opcode); 677 678 if (!bit_test( 679 ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF(opcode) - 1], 680 NG_HCI_OCF(opcode) - 1)) 681 return (EPERM); 682 } 683 684 if (d && !bit_test(pcb->filter.packet_mask, NG_HCI_CMD_PKT - 1)) 685 return (EPERM); 686 break; 687 688 case NG_HCI_ACL_DATA_PKT: 689 case NG_HCI_SCO_DATA_PKT: 690 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) || 691 !bit_test(pcb->filter.packet_mask, type - 1) || 692 !d) 693 return (EPERM); 694 break; 695 696 case NG_HCI_EVENT_PKT: 697 if (!d) 698 return (EINVAL); 699 700 event = mtod(m, ng_hci_event_pkt_t *)->event - 1; 701 702 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) 703 if (!bit_test(ng_btsocket_hci_raw_sec_filter->events, event)) 704 return (EPERM); 705 706 if (!bit_test(pcb->filter.event_mask, event)) 707 return (EPERM); 708 break; 709 710 default: 711 return (EINVAL); 712 } 713 714 return (0); 715 } /* ng_btsocket_hci_raw_filter */ 716 717 /* 718 * Initialize everything 719 */ 720 721 void 722 ng_btsocket_hci_raw_init(void) 723 { 724 bitstr_t *f = NULL; 725 int error = 0; 726 727 ng_btsocket_hci_raw_node = NULL; 728 ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL; 729 ng_btsocket_hci_raw_ioctl_timeout = 5; 730 731 /* Register Netgraph node type */ 732 error = ng_newtype(&typestruct); 733 if (error != 0) { 734 NG_BTSOCKET_HCI_RAW_ALERT( 735 "%s: Could not register Netgraph node type, error=%d\n", __func__, error); 736 737 return; 738 } 739 740 /* Create Netgrapg node */ 741 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 742 if (error != 0) { 743 NG_BTSOCKET_HCI_RAW_ALERT( 744 "%s: Could not create Netgraph node, error=%d\n", __func__, error); 745 746 ng_btsocket_hci_raw_node = NULL; 747 748 return; 749 } 750 751 error = ng_name_node(ng_btsocket_hci_raw_node, 752 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 753 if (error != 0) { 754 NG_BTSOCKET_HCI_RAW_ALERT( 755 "%s: Could not name Netgraph node, error=%d\n", __func__, error); 756 757 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 758 ng_btsocket_hci_raw_node = NULL; 759 760 return; 761 } 762 763 /* Create input queue */ 764 NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, ifqmaxlen); 765 mtx_init(&ng_btsocket_hci_raw_queue_mtx, 766 "btsocks_hci_raw_queue_mtx", NULL, MTX_DEF); 767 TASK_INIT(&ng_btsocket_hci_raw_task, 0, 768 ng_btsocket_hci_raw_input, NULL); 769 770 /* Create list of sockets */ 771 LIST_INIT(&ng_btsocket_hci_raw_sockets); 772 mtx_init(&ng_btsocket_hci_raw_sockets_mtx, 773 "btsocks_hci_raw_sockets_mtx", NULL, MTX_DEF); 774 775 /* Tokens */ 776 ng_btsocket_hci_raw_token = 0; 777 mtx_init(&ng_btsocket_hci_raw_token_mtx, 778 "btsocks_hci_raw_token_mtx", NULL, MTX_DEF); 779 780 /* 781 * Security filter 782 * XXX never FREE()ed 783 */ 784 785 ng_btsocket_hci_raw_sec_filter = NULL; 786 787 MALLOC(ng_btsocket_hci_raw_sec_filter, 788 struct ng_btsocket_hci_raw_sec_filter *, 789 sizeof(struct ng_btsocket_hci_raw_sec_filter), 790 M_NETGRAPH_BTSOCKET_HCI_RAW, M_WAITOK | M_NULLOK | M_ZERO); 791 if (ng_btsocket_hci_raw_sec_filter == NULL) { 792 printf("%s: Could not allocate security filter!\n", __func__); 793 return; 794 } 795 796 /* 797 * XXX How paranoid can we get? 798 * 799 * Initialize security filter. If bit is set in the mask then 800 * unprivileged socket is allowed to send (receive) this command 801 * (event). 802 */ 803 804 /* Enable all events */ 805 memset(&ng_btsocket_hci_raw_sec_filter->events, 0xff, 806 sizeof(ng_btsocket_hci_raw_sec_filter->events)/ 807 sizeof(ng_btsocket_hci_raw_sec_filter->events[0])); 808 809 /* Disable some critical events */ 810 f = ng_btsocket_hci_raw_sec_filter->events; 811 bit_clear(f, NG_HCI_EVENT_RETURN_LINK_KEYS - 1); 812 bit_clear(f, NG_HCI_EVENT_LINK_KEY_NOTIFICATION - 1); 813 bit_clear(f, NG_HCI_EVENT_VENDOR - 1); 814 815 /* Commands - Link control */ 816 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_CONTROL-1]; 817 bit_set(f, NG_HCI_OCF_INQUIRY - 1); 818 bit_set(f, NG_HCI_OCF_INQUIRY_CANCEL - 1); 819 bit_set(f, NG_HCI_OCF_PERIODIC_INQUIRY - 1); 820 bit_set(f, NG_HCI_OCF_EXIT_PERIODIC_INQUIRY - 1); 821 bit_set(f, NG_HCI_OCF_REMOTE_NAME_REQ - 1); 822 bit_set(f, NG_HCI_OCF_READ_REMOTE_FEATURES - 1); 823 bit_set(f, NG_HCI_OCF_READ_REMOTE_VER_INFO - 1); 824 bit_set(f, NG_HCI_OCF_READ_CLOCK_OFFSET - 1); 825 826 /* Commands - Link policy */ 827 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_POLICY-1]; 828 bit_set(f, NG_HCI_OCF_ROLE_DISCOVERY - 1); 829 bit_set(f, NG_HCI_OCF_READ_LINK_POLICY_SETTINGS - 1); 830 831 /* Commands - Host controller and baseband */ 832 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_HC_BASEBAND-1]; 833 bit_set(f, NG_HCI_OCF_READ_PIN_TYPE - 1); 834 bit_set(f, NG_HCI_OCF_READ_LOCAL_NAME - 1); 835 bit_set(f, NG_HCI_OCF_READ_CON_ACCEPT_TIMO - 1); 836 bit_set(f, NG_HCI_OCF_READ_PAGE_TIMO - 1); 837 bit_set(f, NG_HCI_OCF_READ_SCAN_ENABLE - 1); 838 bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_ACTIVITY - 1); 839 bit_set(f, NG_HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY - 1); 840 bit_set(f, NG_HCI_OCF_READ_AUTH_ENABLE - 1); 841 bit_set(f, NG_HCI_OCF_READ_ENCRYPTION_MODE - 1); 842 bit_set(f, NG_HCI_OCF_READ_UNIT_CLASS - 1); 843 bit_set(f, NG_HCI_OCF_READ_VOICE_SETTINGS - 1); 844 bit_set(f, NG_HCI_OCF_READ_AUTO_FLUSH_TIMO - 1); 845 bit_set(f, NG_HCI_OCF_READ_NUM_BROADCAST_RETRANS - 1); 846 bit_set(f, NG_HCI_OCF_READ_HOLD_MODE_ACTIVITY - 1); 847 bit_set(f, NG_HCI_OCF_READ_XMIT_LEVEL - 1); 848 bit_set(f, NG_HCI_OCF_READ_SCO_FLOW_CONTROL - 1); 849 bit_set(f, NG_HCI_OCF_READ_LINK_SUPERVISION_TIMO - 1); 850 bit_set(f, NG_HCI_OCF_READ_SUPPORTED_IAC_NUM - 1); 851 bit_set(f, NG_HCI_OCF_READ_IAC_LAP - 1); 852 bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_PERIOD - 1); 853 bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN - 1); 854 855 /* Commands - Informational */ 856 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_INFO - 1]; 857 bit_set(f, NG_HCI_OCF_READ_LOCAL_VER - 1); 858 bit_set(f, NG_HCI_OCF_READ_LOCAL_FEATURES - 1); 859 bit_set(f, NG_HCI_OCF_READ_BUFFER_SIZE - 1); 860 bit_set(f, NG_HCI_OCF_READ_COUNTRY_CODE - 1); 861 bit_set(f, NG_HCI_OCF_READ_BDADDR - 1); 862 863 /* Commands - Status */ 864 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_STATUS - 1]; 865 bit_set(f, NG_HCI_OCF_READ_FAILED_CONTACT_CNTR - 1); 866 bit_set(f, NG_HCI_OCF_GET_LINK_QUALITY - 1); 867 bit_set(f, NG_HCI_OCF_READ_RSSI - 1); 868 869 /* Commands - Testing */ 870 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_TESTING - 1]; 871 bit_set(f, NG_HCI_OCF_READ_LOOPBACK_MODE - 1); 872 } /* ng_btsocket_hci_raw_init */ 873 874 /* 875 * Abort connection on socket 876 */ 877 878 void 879 ng_btsocket_hci_raw_abort(struct socket *so) 880 { 881 } /* ng_btsocket_hci_raw_abort */ 882 883 void 884 ng_btsocket_hci_raw_close(struct socket *so) 885 { 886 } /* ng_btsocket_hci_raw_close */ 887 888 /* 889 * Create new raw HCI socket 890 */ 891 892 int 893 ng_btsocket_hci_raw_attach(struct socket *so, int proto, struct thread *td) 894 { 895 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 896 int error = 0; 897 898 if (pcb != NULL) 899 return (EISCONN); 900 901 if (ng_btsocket_hci_raw_node == NULL) 902 return (EPROTONOSUPPORT); 903 if (proto != BLUETOOTH_PROTO_HCI) 904 return (EPROTONOSUPPORT); 905 if (so->so_type != SOCK_RAW) 906 return (ESOCKTNOSUPPORT); 907 908 error = soreserve(so, NG_BTSOCKET_HCI_RAW_SENDSPACE, 909 NG_BTSOCKET_HCI_RAW_RECVSPACE); 910 if (error != 0) 911 return (error); 912 913 MALLOC(pcb, ng_btsocket_hci_raw_pcb_p, sizeof(*pcb), 914 M_NETGRAPH_BTSOCKET_HCI_RAW, M_WAITOK | M_NULLOK | M_ZERO); 915 if (pcb == NULL) 916 return (ENOMEM); 917 918 so->so_pcb = (caddr_t) pcb; 919 pcb->so = so; 920 921 if (priv_check(td, PRIV_NETBLUETOOTH_RAW) == 0) 922 pcb->flags |= NG_BTSOCKET_HCI_RAW_PRIVILEGED; 923 924 /* 925 * Set default socket filter. By default socket only accepts HCI 926 * Command_Complete and Command_Status event packets. 927 */ 928 929 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1); 930 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1); 931 932 mtx_init(&pcb->pcb_mtx, "btsocks_hci_raw_pcb_mtx", NULL, MTX_DEF); 933 934 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 935 LIST_INSERT_HEAD(&ng_btsocket_hci_raw_sockets, pcb, next); 936 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 937 938 return (0); 939 } /* ng_btsocket_hci_raw_attach */ 940 941 /* 942 * Bind raw HCI socket 943 */ 944 945 int 946 ng_btsocket_hci_raw_bind(struct socket *so, struct sockaddr *nam, 947 struct thread *td) 948 { 949 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 950 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 951 952 if (pcb == NULL) 953 return (EINVAL); 954 if (ng_btsocket_hci_raw_node == NULL) 955 return (EINVAL); 956 957 if (sa == NULL) 958 return (EINVAL); 959 if (sa->hci_family != AF_BLUETOOTH) 960 return (EAFNOSUPPORT); 961 if (sa->hci_len != sizeof(*sa)) 962 return (EINVAL); 963 if (sa->hci_node[0] == 0) 964 return (EINVAL); 965 966 mtx_lock(&pcb->pcb_mtx); 967 bcopy(sa, &pcb->addr, sizeof(pcb->addr)); 968 mtx_unlock(&pcb->pcb_mtx); 969 970 return (0); 971 } /* ng_btsocket_hci_raw_bind */ 972 973 /* 974 * Connect raw HCI socket 975 */ 976 977 int 978 ng_btsocket_hci_raw_connect(struct socket *so, struct sockaddr *nam, 979 struct thread *td) 980 { 981 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 982 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 983 984 if (pcb == NULL) 985 return (EINVAL); 986 if (ng_btsocket_hci_raw_node == NULL) 987 return (EINVAL); 988 989 if (sa == NULL) 990 return (EINVAL); 991 if (sa->hci_family != AF_BLUETOOTH) 992 return (EAFNOSUPPORT); 993 if (sa->hci_len != sizeof(*sa)) 994 return (EINVAL); 995 if (sa->hci_node[0] == 0) 996 return (EDESTADDRREQ); 997 998 mtx_lock(&pcb->pcb_mtx); 999 1000 if (bcmp(sa, &pcb->addr, sizeof(pcb->addr)) != 0) { 1001 mtx_unlock(&pcb->pcb_mtx); 1002 return (EADDRNOTAVAIL); 1003 } 1004 1005 soisconnected(so); 1006 1007 mtx_unlock(&pcb->pcb_mtx); 1008 1009 return (0); 1010 } /* ng_btsocket_hci_raw_connect */ 1011 1012 /* 1013 * Process ioctl on socket 1014 */ 1015 1016 int 1017 ng_btsocket_hci_raw_control(struct socket *so, u_long cmd, caddr_t data, 1018 struct ifnet *ifp, struct thread *td) 1019 { 1020 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1021 char path[NG_NODESIZ + 1]; 1022 struct ng_mesg *msg = NULL; 1023 int error = 0; 1024 1025 if (pcb == NULL) 1026 return (EINVAL); 1027 if (ng_btsocket_hci_raw_node == NULL) 1028 return (EINVAL); 1029 1030 mtx_lock(&pcb->pcb_mtx); 1031 1032 /* Check if we have device name */ 1033 if (pcb->addr.hci_node[0] == 0) { 1034 mtx_unlock(&pcb->pcb_mtx); 1035 return (EHOSTUNREACH); 1036 } 1037 1038 /* Check if we have pending ioctl() */ 1039 if (pcb->token != 0) { 1040 mtx_unlock(&pcb->pcb_mtx); 1041 return (EBUSY); 1042 } 1043 1044 snprintf(path, sizeof(path), "%s:", pcb->addr.hci_node); 1045 1046 switch (cmd) { 1047 case SIOC_HCI_RAW_NODE_GET_STATE: { 1048 struct ng_btsocket_hci_raw_node_state *p = 1049 (struct ng_btsocket_hci_raw_node_state *) data; 1050 1051 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1052 NGM_HCI_NODE_GET_STATE, 1053 &p->state, sizeof(p->state)); 1054 } break; 1055 1056 case SIOC_HCI_RAW_NODE_INIT: 1057 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1058 error = ng_btsocket_hci_raw_send_ngmsg(path, 1059 NGM_HCI_NODE_INIT, NULL, 0); 1060 else 1061 error = EPERM; 1062 break; 1063 1064 case SIOC_HCI_RAW_NODE_GET_DEBUG: { 1065 struct ng_btsocket_hci_raw_node_debug *p = 1066 (struct ng_btsocket_hci_raw_node_debug *) data; 1067 1068 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1069 NGM_HCI_NODE_GET_DEBUG, 1070 &p->debug, sizeof(p->debug)); 1071 } break; 1072 1073 case SIOC_HCI_RAW_NODE_SET_DEBUG: { 1074 struct ng_btsocket_hci_raw_node_debug *p = 1075 (struct ng_btsocket_hci_raw_node_debug *) data; 1076 1077 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1078 error = ng_btsocket_hci_raw_send_ngmsg(path, 1079 NGM_HCI_NODE_SET_DEBUG, &p->debug, 1080 sizeof(p->debug)); 1081 else 1082 error = EPERM; 1083 } break; 1084 1085 case SIOC_HCI_RAW_NODE_GET_BUFFER: { 1086 struct ng_btsocket_hci_raw_node_buffer *p = 1087 (struct ng_btsocket_hci_raw_node_buffer *) data; 1088 1089 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1090 NGM_HCI_NODE_GET_BUFFER, 1091 &p->buffer, sizeof(p->buffer)); 1092 } break; 1093 1094 case SIOC_HCI_RAW_NODE_GET_BDADDR: { 1095 struct ng_btsocket_hci_raw_node_bdaddr *p = 1096 (struct ng_btsocket_hci_raw_node_bdaddr *) data; 1097 1098 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1099 NGM_HCI_NODE_GET_BDADDR, 1100 &p->bdaddr, sizeof(p->bdaddr)); 1101 } break; 1102 1103 case SIOC_HCI_RAW_NODE_GET_FEATURES: { 1104 struct ng_btsocket_hci_raw_node_features *p = 1105 (struct ng_btsocket_hci_raw_node_features *) data; 1106 1107 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1108 NGM_HCI_NODE_GET_FEATURES, 1109 &p->features, sizeof(p->features)); 1110 } break; 1111 1112 case SIOC_HCI_RAW_NODE_GET_STAT: { 1113 struct ng_btsocket_hci_raw_node_stat *p = 1114 (struct ng_btsocket_hci_raw_node_stat *) data; 1115 1116 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1117 NGM_HCI_NODE_GET_STAT, 1118 &p->stat, sizeof(p->stat)); 1119 } break; 1120 1121 case SIOC_HCI_RAW_NODE_RESET_STAT: 1122 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1123 error = ng_btsocket_hci_raw_send_ngmsg(path, 1124 NGM_HCI_NODE_RESET_STAT, NULL, 0); 1125 else 1126 error = EPERM; 1127 break; 1128 1129 case SIOC_HCI_RAW_NODE_FLUSH_NEIGHBOR_CACHE: 1130 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1131 error = ng_btsocket_hci_raw_send_ngmsg(path, 1132 NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE, 1133 NULL, 0); 1134 else 1135 error = EPERM; 1136 break; 1137 1138 case SIOC_HCI_RAW_NODE_GET_NEIGHBOR_CACHE: { 1139 struct ng_btsocket_hci_raw_node_neighbor_cache *p = 1140 (struct ng_btsocket_hci_raw_node_neighbor_cache *) data; 1141 ng_hci_node_get_neighbor_cache_ep *p1 = NULL; 1142 ng_hci_node_neighbor_cache_entry_ep *p2 = NULL; 1143 1144 if (p->num_entries <= 0 || 1145 p->num_entries > NG_HCI_MAX_NEIGHBOR_NUM || 1146 p->entries == NULL) { 1147 error = EINVAL; 1148 break; 1149 } 1150 1151 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, 1152 NGM_HCI_NODE_GET_NEIGHBOR_CACHE, 0, M_WAITOK | M_NULLOK); 1153 if (msg == NULL) { 1154 error = ENOMEM; 1155 break; 1156 } 1157 ng_btsocket_hci_raw_get_token(&msg->header.token); 1158 pcb->token = msg->header.token; 1159 pcb->msg = NULL; 1160 1161 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 1162 if (error != 0) { 1163 pcb->token = 0; 1164 break; 1165 } 1166 1167 error = msleep(&pcb->msg, &pcb->pcb_mtx, 1168 PZERO|PCATCH, "hcictl", 1169 ng_btsocket_hci_raw_ioctl_timeout * hz); 1170 pcb->token = 0; 1171 1172 if (error != 0) 1173 break; 1174 1175 if (pcb->msg != NULL && 1176 pcb->msg->header.cmd == NGM_HCI_NODE_GET_NEIGHBOR_CACHE) { 1177 /* Return data back to user space */ 1178 p1 = (ng_hci_node_get_neighbor_cache_ep *) 1179 (pcb->msg->data); 1180 p2 = (ng_hci_node_neighbor_cache_entry_ep *) 1181 (p1 + 1); 1182 1183 p->num_entries = min(p->num_entries, p1->num_entries); 1184 if (p->num_entries > 0) 1185 error = copyout((caddr_t) p2, 1186 (caddr_t) p->entries, 1187 p->num_entries * sizeof(*p2)); 1188 } else 1189 error = EINVAL; 1190 1191 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1192 }break; 1193 1194 case SIOC_HCI_RAW_NODE_GET_CON_LIST: { 1195 struct ng_btsocket_hci_raw_con_list *p = 1196 (struct ng_btsocket_hci_raw_con_list *) data; 1197 ng_hci_node_con_list_ep *p1 = NULL; 1198 ng_hci_node_con_ep *p2 = NULL; 1199 1200 if (p->num_connections == 0 || 1201 p->num_connections > NG_HCI_MAX_CON_NUM || 1202 p->connections == NULL) { 1203 error = EINVAL; 1204 break; 1205 } 1206 1207 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_CON_LIST, 1208 0, M_WAITOK | M_NULLOK); 1209 if (msg == NULL) { 1210 error = ENOMEM; 1211 break; 1212 } 1213 ng_btsocket_hci_raw_get_token(&msg->header.token); 1214 pcb->token = msg->header.token; 1215 pcb->msg = NULL; 1216 1217 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 1218 if (error != 0) { 1219 pcb->token = 0; 1220 break; 1221 } 1222 1223 error = msleep(&pcb->msg, &pcb->pcb_mtx, 1224 PZERO|PCATCH, "hcictl", 1225 ng_btsocket_hci_raw_ioctl_timeout * hz); 1226 pcb->token = 0; 1227 1228 if (error != 0) 1229 break; 1230 1231 if (pcb->msg != NULL && 1232 pcb->msg->header.cmd == NGM_HCI_NODE_GET_CON_LIST) { 1233 /* Return data back to user space */ 1234 p1 = (ng_hci_node_con_list_ep *)(pcb->msg->data); 1235 p2 = (ng_hci_node_con_ep *)(p1 + 1); 1236 1237 p->num_connections = min(p->num_connections, 1238 p1->num_connections); 1239 if (p->num_connections > 0) 1240 error = copyout((caddr_t) p2, 1241 (caddr_t) p->connections, 1242 p->num_connections * sizeof(*p2)); 1243 } else 1244 error = EINVAL; 1245 1246 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1247 } break; 1248 1249 case SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK: { 1250 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1251 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1252 data; 1253 1254 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1255 NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK, 1256 &p->policy_mask, sizeof(p->policy_mask)); 1257 } break; 1258 1259 case SIOC_HCI_RAW_NODE_SET_LINK_POLICY_MASK: { 1260 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1261 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1262 data; 1263 1264 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1265 error = ng_btsocket_hci_raw_send_ngmsg(path, 1266 NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK, 1267 &p->policy_mask, 1268 sizeof(p->policy_mask)); 1269 else 1270 error = EPERM; 1271 } break; 1272 1273 case SIOC_HCI_RAW_NODE_GET_PACKET_MASK: { 1274 struct ng_btsocket_hci_raw_node_packet_mask *p = 1275 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1276 1277 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1278 NGM_HCI_NODE_GET_PACKET_MASK, 1279 &p->packet_mask, sizeof(p->packet_mask)); 1280 } break; 1281 1282 case SIOC_HCI_RAW_NODE_SET_PACKET_MASK: { 1283 struct ng_btsocket_hci_raw_node_packet_mask *p = 1284 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1285 1286 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1287 error = ng_btsocket_hci_raw_send_ngmsg(path, 1288 NGM_HCI_NODE_SET_PACKET_MASK, 1289 &p->packet_mask, 1290 sizeof(p->packet_mask)); 1291 else 1292 error = EPERM; 1293 } break; 1294 1295 case SIOC_HCI_RAW_NODE_GET_ROLE_SWITCH: { 1296 struct ng_btsocket_hci_raw_node_role_switch *p = 1297 (struct ng_btsocket_hci_raw_node_role_switch *) data; 1298 1299 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1300 NGM_HCI_NODE_GET_ROLE_SWITCH, 1301 &p->role_switch, sizeof(p->role_switch)); 1302 } break; 1303 1304 case SIOC_HCI_RAW_NODE_SET_ROLE_SWITCH: { 1305 struct ng_btsocket_hci_raw_node_role_switch *p = 1306 (struct ng_btsocket_hci_raw_node_role_switch *) data; 1307 1308 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1309 error = ng_btsocket_hci_raw_send_ngmsg(path, 1310 NGM_HCI_NODE_SET_ROLE_SWITCH, 1311 &p->role_switch, 1312 sizeof(p->role_switch)); 1313 else 1314 error = EPERM; 1315 } break; 1316 1317 case SIOC_HCI_RAW_NODE_LIST_NAMES: { 1318 struct ng_btsocket_hci_raw_node_list_names *nl = 1319 (struct ng_btsocket_hci_raw_node_list_names *) data; 1320 struct nodeinfo *ni = nl->names; 1321 1322 if (nl->num_names == 0) { 1323 error = EINVAL; 1324 break; 1325 } 1326 1327 NG_MKMESSAGE(msg, NGM_GENERIC_COOKIE, NGM_LISTNAMES, 1328 0, M_WAITOK | M_NULLOK); 1329 if (msg == NULL) { 1330 error = ENOMEM; 1331 break; 1332 } 1333 ng_btsocket_hci_raw_get_token(&msg->header.token); 1334 pcb->token = msg->header.token; 1335 pcb->msg = NULL; 1336 1337 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, ".:", 0); 1338 if (error != 0) { 1339 pcb->token = 0; 1340 break; 1341 } 1342 1343 error = msleep(&pcb->msg, &pcb->pcb_mtx, 1344 PZERO|PCATCH, "hcictl", 1345 ng_btsocket_hci_raw_ioctl_timeout * hz); 1346 pcb->token = 0; 1347 1348 if (error != 0) 1349 break; 1350 1351 if (pcb->msg != NULL && pcb->msg->header.cmd == NGM_LISTNAMES) { 1352 /* Return data back to user space */ 1353 struct namelist *nl1 = (struct namelist *) pcb->msg->data; 1354 struct nodeinfo *ni1 = &nl1->nodeinfo[0]; 1355 1356 while (nl->num_names > 0 && nl1->numnames > 0) { 1357 if (strcmp(ni1->type, NG_HCI_NODE_TYPE) == 0) { 1358 error = copyout((caddr_t) ni1, 1359 (caddr_t) ni, 1360 sizeof(*ni)); 1361 if (error != 0) 1362 break; 1363 1364 nl->num_names --; 1365 ni ++; 1366 } 1367 1368 nl1->numnames --; 1369 ni1 ++; 1370 } 1371 1372 nl->num_names = ni - nl->names; 1373 } else 1374 error = EINVAL; 1375 1376 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1377 } break; 1378 1379 default: 1380 error = EINVAL; 1381 break; 1382 } 1383 1384 mtx_unlock(&pcb->pcb_mtx); 1385 1386 return (error); 1387 } /* ng_btsocket_hci_raw_control */ 1388 1389 /* 1390 * Process getsockopt/setsockopt system calls 1391 */ 1392 1393 int 1394 ng_btsocket_hci_raw_ctloutput(struct socket *so, struct sockopt *sopt) 1395 { 1396 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1397 struct ng_btsocket_hci_raw_filter filter; 1398 int error = 0, dir; 1399 1400 if (pcb == NULL) 1401 return (EINVAL); 1402 if (ng_btsocket_hci_raw_node == NULL) 1403 return (EINVAL); 1404 1405 if (sopt->sopt_level != SOL_HCI_RAW) 1406 return (0); 1407 1408 mtx_lock(&pcb->pcb_mtx); 1409 1410 switch (sopt->sopt_dir) { 1411 case SOPT_GET: 1412 switch (sopt->sopt_name) { 1413 case SO_HCI_RAW_FILTER: 1414 error = sooptcopyout(sopt, &pcb->filter, 1415 sizeof(pcb->filter)); 1416 break; 1417 1418 case SO_HCI_RAW_DIRECTION: 1419 dir = (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION)?1:0; 1420 error = sooptcopyout(sopt, &dir, sizeof(dir)); 1421 break; 1422 1423 default: 1424 error = EINVAL; 1425 break; 1426 } 1427 break; 1428 1429 case SOPT_SET: 1430 switch (sopt->sopt_name) { 1431 case SO_HCI_RAW_FILTER: 1432 error = sooptcopyin(sopt, &filter, sizeof(filter), 1433 sizeof(filter)); 1434 if (error == 0) 1435 bcopy(&filter, &pcb->filter, 1436 sizeof(pcb->filter)); 1437 break; 1438 1439 case SO_HCI_RAW_DIRECTION: 1440 error = sooptcopyin(sopt, &dir, sizeof(dir), 1441 sizeof(dir)); 1442 if (error != 0) 1443 break; 1444 1445 if (dir) 1446 pcb->flags |= NG_BTSOCKET_HCI_RAW_DIRECTION; 1447 else 1448 pcb->flags &= ~NG_BTSOCKET_HCI_RAW_DIRECTION; 1449 break; 1450 1451 default: 1452 error = EINVAL; 1453 break; 1454 } 1455 break; 1456 1457 default: 1458 error = EINVAL; 1459 break; 1460 } 1461 1462 mtx_unlock(&pcb->pcb_mtx); 1463 1464 return (error); 1465 } /* ng_btsocket_hci_raw_ctloutput */ 1466 1467 /* 1468 * Detach raw HCI socket 1469 */ 1470 1471 void 1472 ng_btsocket_hci_raw_detach(struct socket *so) 1473 { 1474 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1475 1476 KASSERT(pcb != NULL, ("ng_btsocket_hci_raw_detach: pcb == NULL")); 1477 1478 if (ng_btsocket_hci_raw_node == NULL) 1479 return; 1480 1481 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 1482 mtx_lock(&pcb->pcb_mtx); 1483 1484 LIST_REMOVE(pcb, next); 1485 1486 mtx_unlock(&pcb->pcb_mtx); 1487 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 1488 1489 mtx_destroy(&pcb->pcb_mtx); 1490 1491 bzero(pcb, sizeof(*pcb)); 1492 FREE(pcb, M_NETGRAPH_BTSOCKET_HCI_RAW); 1493 1494 so->so_pcb = NULL; 1495 } /* ng_btsocket_hci_raw_detach */ 1496 1497 /* 1498 * Disconnect raw HCI socket 1499 */ 1500 1501 int 1502 ng_btsocket_hci_raw_disconnect(struct socket *so) 1503 { 1504 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1505 1506 if (pcb == NULL) 1507 return (EINVAL); 1508 if (ng_btsocket_hci_raw_node == NULL) 1509 return (EINVAL); 1510 1511 mtx_lock(&pcb->pcb_mtx); 1512 soisdisconnected(so); 1513 mtx_unlock(&pcb->pcb_mtx); 1514 1515 return (0); 1516 } /* ng_btsocket_hci_raw_disconnect */ 1517 1518 /* 1519 * Get socket peer's address 1520 */ 1521 1522 int 1523 ng_btsocket_hci_raw_peeraddr(struct socket *so, struct sockaddr **nam) 1524 { 1525 return (ng_btsocket_hci_raw_sockaddr(so, nam)); 1526 } /* ng_btsocket_hci_raw_peeraddr */ 1527 1528 /* 1529 * Send data 1530 */ 1531 1532 int 1533 ng_btsocket_hci_raw_send(struct socket *so, int flags, struct mbuf *m, 1534 struct sockaddr *sa, struct mbuf *control, struct thread *td) 1535 { 1536 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1537 struct mbuf *nam = NULL; 1538 int error = 0; 1539 1540 if (ng_btsocket_hci_raw_node == NULL) { 1541 error = ENETDOWN; 1542 goto drop; 1543 } 1544 if (pcb == NULL) { 1545 error = EINVAL; 1546 goto drop; 1547 } 1548 if (control != NULL) { 1549 error = EINVAL; 1550 goto drop; 1551 } 1552 1553 if (m->m_pkthdr.len < sizeof(ng_hci_cmd_pkt_t) || 1554 m->m_pkthdr.len > sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE) { 1555 error = EMSGSIZE; 1556 goto drop; 1557 } 1558 1559 if (m->m_len < sizeof(ng_hci_cmd_pkt_t)) { 1560 if ((m = m_pullup(m, sizeof(ng_hci_cmd_pkt_t))) == NULL) { 1561 error = ENOBUFS; 1562 goto drop; 1563 } 1564 } 1565 if (*mtod(m, u_int8_t *) != NG_HCI_CMD_PKT) { 1566 error = ENOTSUP; 1567 goto drop; 1568 } 1569 1570 mtx_lock(&pcb->pcb_mtx); 1571 1572 error = ng_btsocket_hci_raw_filter(pcb, m, 0); 1573 if (error != 0) { 1574 mtx_unlock(&pcb->pcb_mtx); 1575 goto drop; 1576 } 1577 1578 if (sa == NULL) { 1579 if (pcb->addr.hci_node[0] == 0) { 1580 mtx_unlock(&pcb->pcb_mtx); 1581 error = EDESTADDRREQ; 1582 goto drop; 1583 } 1584 1585 sa = (struct sockaddr *) &pcb->addr; 1586 } 1587 1588 MGET(nam, MB_DONTWAIT, MT_SONAME); 1589 if (nam == NULL) { 1590 mtx_unlock(&pcb->pcb_mtx); 1591 error = ENOBUFS; 1592 goto drop; 1593 } 1594 1595 nam->m_len = sizeof(struct sockaddr_hci); 1596 bcopy(sa,mtod(nam, struct sockaddr_hci *),sizeof(struct sockaddr_hci)); 1597 1598 nam->m_next = m; 1599 m = NULL; 1600 1601 mtx_unlock(&pcb->pcb_mtx); 1602 1603 return (ng_send_fn(ng_btsocket_hci_raw_node, NULL, 1604 ng_btsocket_hci_raw_output, nam, 0)); 1605 drop: 1606 NG_FREE_M(control); /* NG_FREE_M checks for != NULL */ 1607 NG_FREE_M(nam); 1608 NG_FREE_M(m); 1609 1610 return (error); 1611 } /* ng_btsocket_hci_raw_send */ 1612 1613 /* 1614 * Get socket address 1615 */ 1616 1617 int 1618 ng_btsocket_hci_raw_sockaddr(struct socket *so, struct sockaddr **nam) 1619 { 1620 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1621 struct sockaddr_hci sa; 1622 1623 if (pcb == NULL) 1624 return (EINVAL); 1625 if (ng_btsocket_hci_raw_node == NULL) 1626 return (EINVAL); 1627 1628 bzero(&sa, sizeof(sa)); 1629 sa.hci_len = sizeof(sa); 1630 sa.hci_family = AF_BLUETOOTH; 1631 1632 mtx_lock(&pcb->pcb_mtx); 1633 strlcpy(sa.hci_node, pcb->addr.hci_node, sizeof(sa.hci_node)); 1634 mtx_unlock(&pcb->pcb_mtx); 1635 1636 *nam = sodupsockaddr((struct sockaddr *) &sa, M_WAITOK | M_NULLOK); 1637 1638 return ((*nam == NULL)? ENOMEM : 0); 1639 } /* ng_btsocket_hci_raw_sockaddr */ 1640 1641