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 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/bitstring.h> 37 #include <sys/domain.h> 38 #include <sys/endian.h> 39 #include <sys/errno.h> 40 #include <sys/filedesc.h> 41 #include <sys/kernel.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/mbuf.h> 45 #include <sys/caps.h> 46 #include <sys/protosw.h> 47 #include <sys/queue.h> 48 #include <sys/socket.h> 49 #include <sys/socketvar.h> 50 #include <sys/sysctl.h> 51 #include <sys/taskqueue.h> 52 #include <sys/msgport2.h> 53 #include <sys/refcount.h> 54 #include <netgraph7/ng_message.h> 55 #include <netgraph7/netgraph.h> 56 #include <netgraph7/netgraph2.h> 57 #include <netgraph7/bluetooth/include/ng_bluetooth.h> 58 #include <netgraph7/bluetooth/include/ng_hci.h> 59 #include <netgraph7/bluetooth/include/ng_l2cap.h> 60 #include <netgraph7/bluetooth/include/ng_btsocket.h> 61 #include <netgraph7/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 lock ng_btsocket_hci_raw_queue_lock; 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 lock ng_btsocket_hci_raw_sockets_lock; 120 static u_int32_t ng_btsocket_hci_raw_token; 121 static struct lock ng_btsocket_hci_raw_token_lock; 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 kprintf 148 149 #define NG_BTSOCKET_HCI_RAW_WARN \ 150 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL) \ 151 kprintf 152 153 #define NG_BTSOCKET_HCI_RAW_ERR \ 154 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL) \ 155 kprintf 156 157 #define NG_BTSOCKET_HCI_RAW_ALERT \ 158 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \ 159 kprintf 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 lockmgr(&ng_btsocket_hci_raw_queue_lock, LK_EXCLUSIVE); 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_ref_item(item); 280 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 281 error = ng_btsocket_hci_raw_wakeup_input_task(); 282 } 283 lockmgr(&ng_btsocket_hci_raw_queue_lock, LK_RELEASE); 284 } else { 285 NG_FREE_ITEM(item); 286 error = EINVAL; 287 } 288 289 return (error); 290 } /* ng_btsocket_hci_raw_node_rcvmsg */ 291 292 /* 293 * Receive packet from the one of our hook. 294 * Prepend every packet with sockaddr_hci and record sender's node name. 295 * Enqueue item and schedule input task. 296 */ 297 298 static int 299 ng_btsocket_hci_raw_node_rcvdata(hook_p hook, item_p item) 300 { 301 struct mbuf *nam = NULL; 302 int error; 303 304 /* 305 * Check for empty sockets list creates LOR when both sender and 306 * receiver device are connected to the same host, so remove it 307 * for now 308 */ 309 310 MGET(nam, M_NOWAIT, MT_SONAME); 311 if (nam != NULL) { 312 struct sockaddr_hci *sa = mtod(nam, struct sockaddr_hci *); 313 314 nam->m_len = sizeof(struct sockaddr_hci); 315 316 sa->hci_len = sizeof(*sa); 317 sa->hci_family = AF_BLUETOOTH; 318 strlcpy(sa->hci_node, NG_PEER_NODE_NAME(hook), 319 sizeof(sa->hci_node)); 320 321 NGI_GET_M(item, nam->m_next); 322 NGI_M(item) = nam; 323 324 lockmgr(&ng_btsocket_hci_raw_queue_lock, LK_EXCLUSIVE); 325 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 326 NG_BTSOCKET_HCI_RAW_ERR( 327 "%s: Input queue is full\n", __func__); 328 329 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 330 NG_FREE_ITEM(item); 331 error = ENOBUFS; 332 } else { 333 ng_ref_item(item); 334 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 335 error = ng_btsocket_hci_raw_wakeup_input_task(); 336 } 337 lockmgr(&ng_btsocket_hci_raw_queue_lock, LK_RELEASE); 338 } else { 339 NG_BTSOCKET_HCI_RAW_ERR( 340 "%s: Failed to allocate address mbuf\n", __func__); 341 342 NG_FREE_ITEM(item); 343 error = ENOBUFS; 344 } 345 346 return (error); 347 } /* ng_btsocket_hci_raw_node_rcvdata */ 348 349 /**************************************************************************** 350 **************************************************************************** 351 ** Sockets specific 352 **************************************************************************** 353 ****************************************************************************/ 354 355 /* 356 * Get next token. We need token to avoid theoretical race where process 357 * submits ioctl() message then interrupts ioctl() and re-submits another 358 * ioctl() on the same socket *before* first ioctl() complete. 359 */ 360 361 static void 362 ng_btsocket_hci_raw_get_token(u_int32_t *token) 363 { 364 lockmgr(&ng_btsocket_hci_raw_token_lock, LK_EXCLUSIVE); 365 366 if (++ ng_btsocket_hci_raw_token == 0) 367 ng_btsocket_hci_raw_token = 1; 368 369 *token = ng_btsocket_hci_raw_token; 370 371 lockmgr(&ng_btsocket_hci_raw_token_lock, LK_RELEASE); 372 } /* ng_btsocket_hci_raw_get_token */ 373 374 /* 375 * Send Netgraph message to the node - do not expect reply 376 */ 377 378 static int 379 ng_btsocket_hci_raw_send_ngmsg(char *path, int cmd, void *arg, int arglen) 380 { 381 struct ng_mesg *msg = NULL; 382 int error = 0; 383 384 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, arglen, M_WAITOK | M_NULLOK); 385 if (msg == NULL) 386 return (ENOMEM); 387 388 if (arg != NULL && arglen > 0) 389 bcopy(arg, msg->data, arglen); 390 391 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 392 393 return (error); 394 } /* ng_btsocket_hci_raw_send_ngmsg */ 395 396 /* 397 * Send Netgraph message to the node (no data) and wait for reply 398 */ 399 400 static int 401 ng_btsocket_hci_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p pcb, char *path, 402 int cmd, void *rsp, int rsplen) 403 { 404 struct ng_mesg *msg = NULL; 405 int error = 0; 406 407 KKASSERT(lockowned(&pcb->pcb_lock) != 0); 408 409 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, 0, M_WAITOK | M_NULLOK); 410 if (msg == NULL) 411 return (ENOMEM); 412 413 ng_btsocket_hci_raw_get_token(&msg->header.token); 414 pcb->token = msg->header.token; 415 pcb->msg = NULL; 416 417 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 418 if (error != 0) { 419 pcb->token = 0; 420 return (error); 421 } 422 423 error = lksleep(&pcb->msg, &pcb->pcb_lock, PCATCH, "hcictl", 424 ng_btsocket_hci_raw_ioctl_timeout * hz); 425 pcb->token = 0; 426 427 if (error != 0) 428 return (error); 429 430 if (pcb->msg != NULL && pcb->msg->header.cmd == cmd) 431 bcopy(pcb->msg->data, rsp, rsplen); 432 else 433 error = EINVAL; 434 435 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 436 437 return (0); 438 } /* ng_btsocket_hci_raw_send_sync_ngmsg */ 439 440 /* 441 * Create control information for the packet 442 */ 443 444 static void 445 ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf **ctl, 446 struct mbuf *m) 447 { 448 int dir; 449 struct timeval tv; 450 451 KKASSERT(lockowned(&pcb->pcb_lock) != 0); 452 453 if (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION) { 454 dir = (m->m_flags & M_PROTO1)? 1 : 0; 455 *ctl = sbcreatecontrol(&dir, sizeof(dir), 456 SCM_HCI_RAW_DIRECTION, SOL_HCI_RAW); 457 if (*ctl != NULL) 458 ctl = &((*ctl)->m_next); 459 } 460 461 if (pcb->so->so_options & SO_TIMESTAMP) { 462 microtime(&tv); 463 *ctl = sbcreatecontrol(&tv, sizeof(tv), 464 SCM_TIMESTAMP, SOL_SOCKET); 465 if (*ctl != NULL) 466 ctl = &((*ctl)->m_next); 467 } 468 } /* ng_btsocket_hci_raw_savctl */ 469 470 /* 471 * Raw HCI sockets data input routine 472 */ 473 474 static void 475 ng_btsocket_hci_raw_data_input(struct mbuf *nam) 476 { 477 ng_btsocket_hci_raw_pcb_p pcb = NULL; 478 struct mbuf *m0 = NULL, *m = NULL; 479 struct sockaddr_hci *sa = NULL; 480 481 m0 = nam->m_next; 482 nam->m_next = NULL; 483 484 KASSERT((nam->m_type == MT_SONAME), 485 ("%s: m_type=%d\n", __func__, nam->m_type)); 486 KASSERT((m0->m_flags & M_PKTHDR), 487 ("%s: m_flags=%#x\n", __func__, m0->m_flags)); 488 489 sa = mtod(nam, struct sockaddr_hci *); 490 491 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_EXCLUSIVE); 492 493 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 494 495 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 496 497 /* 498 * If socket was bound then check address and 499 * make sure it matches. 500 */ 501 502 if (pcb->addr.hci_node[0] != 0 && 503 strcmp(sa->hci_node, pcb->addr.hci_node) != 0) 504 goto next; 505 506 /* 507 * Check packet against filters 508 * XXX do we have to call m_pullup() here? 509 */ 510 511 if (ng_btsocket_hci_raw_filter(pcb, m0, 1) != 0) 512 goto next; 513 514 /* 515 * Make a copy of the packet, append to the socket's 516 * receive queue and wakeup socket. sbappendaddr() 517 * will check if socket has enough buffer space. 518 */ 519 520 m = m_dup(m0, M_NOWAIT); 521 if (m != NULL) { 522 struct mbuf *ctl = NULL; 523 524 ng_btsocket_hci_raw_savctl(pcb, &ctl, m); 525 526 if (sbappendaddr(&pcb->so->so_rcv.sb, 527 (struct sockaddr *) sa, m, ctl)) 528 sorwakeup(pcb->so); 529 else { 530 NG_BTSOCKET_HCI_RAW_INFO( 531 "%s: sbappendaddr() failed\n", __func__); 532 533 NG_FREE_M(m); 534 NG_FREE_M(ctl); 535 } 536 } 537 next: 538 lockmgr(&pcb->pcb_lock, LK_RELEASE); 539 } 540 541 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_RELEASE); 542 543 NG_FREE_M(nam); 544 NG_FREE_M(m0); 545 } /* ng_btsocket_hci_raw_data_input */ 546 547 /* 548 * Raw HCI sockets message input routine 549 */ 550 551 static void 552 ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg) 553 { 554 ng_btsocket_hci_raw_pcb_p pcb = NULL; 555 556 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_EXCLUSIVE); 557 558 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 559 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 560 561 if (msg->header.token == pcb->token) { 562 pcb->msg = msg; 563 wakeup(&pcb->msg); 564 565 lockmgr(&pcb->pcb_lock, LK_RELEASE); 566 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_RELEASE); 567 568 return; 569 } 570 571 lockmgr(&pcb->pcb_lock, LK_RELEASE); 572 } 573 574 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_RELEASE); 575 576 NG_FREE_MSG(msg); /* checks for != NULL */ 577 } /* ng_btsocket_hci_raw_msg_input */ 578 579 /* 580 * Raw HCI sockets input routines 581 */ 582 583 static void 584 ng_btsocket_hci_raw_input(void *context, int pending) 585 { 586 item_p item = NULL; 587 588 for (;;) { 589 lockmgr(&ng_btsocket_hci_raw_queue_lock, LK_EXCLUSIVE); 590 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item); 591 lockmgr(&ng_btsocket_hci_raw_queue_lock, LK_RELEASE); 592 593 if (item == NULL) 594 break; 595 596 switch(item->el_flags & NGQF_TYPE) { 597 case NGQF_DATA: { 598 struct mbuf *m = NULL; 599 600 NGI_GET_M(item, m); 601 ng_btsocket_hci_raw_data_input(m); 602 } break; 603 604 case NGQF_MESG: { 605 struct ng_mesg *msg = NULL; 606 607 NGI_GET_MSG(item, msg); 608 ng_btsocket_hci_raw_msg_input(msg); 609 } break; 610 611 default: 612 KASSERT(0, 613 ("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 614 break; 615 } 616 617 NG_FREE_ITEM(item); 618 ng_unref_item(item, 0); 619 } 620 } /* ng_btsocket_hci_raw_input */ 621 622 /* 623 * Raw HCI sockets output routine 624 */ 625 626 static void 627 ng_btsocket_hci_raw_output(node_p node, hook_p hook, void *arg1, int arg2) 628 { 629 struct mbuf *nam = (struct mbuf *) arg1, *m = NULL; 630 struct sockaddr_hci *sa = NULL; 631 int error; 632 633 m = nam->m_next; 634 nam->m_next = NULL; 635 636 KASSERT((nam->m_type == MT_SONAME), 637 ("%s: m_type=%d\n", __func__, nam->m_type)); 638 KASSERT((m->m_flags & M_PKTHDR), 639 ("%s: m_flags=%#x\n", __func__, m->m_flags)); 640 641 sa = mtod(nam, struct sockaddr_hci *); 642 643 /* 644 * Find downstream hook 645 * XXX For now access node hook list directly. Should be safe because 646 * we used ng_send_fn() and we should have exclusive lock on the node. 647 */ 648 649 LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) { 650 if (hook == NULL || NG_HOOK_NOT_VALID(hook) || 651 NG_NODE_NOT_VALID(NG_PEER_NODE(hook))) 652 continue; 653 654 if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) { 655 NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */ 656 break; 657 } 658 } 659 660 NG_FREE_M(nam); /* check for != NULL */ 661 NG_FREE_M(m); 662 } /* ng_btsocket_hci_raw_output */ 663 664 /* 665 * Check frame against security and socket filters. 666 * d (direction bit) == 1 means incoming frame. 667 */ 668 669 static int 670 ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf *m, int d) 671 { 672 int type, event, opcode; 673 674 KKASSERT(lockowned(&pcb->pcb_lock) != 0); 675 676 switch ((type = *mtod(m, u_int8_t *))) { 677 case NG_HCI_CMD_PKT: 678 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) { 679 opcode = le16toh(mtod(m, ng_hci_cmd_pkt_t *)->opcode); 680 681 if (!bit_test( 682 ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF(opcode) - 1], 683 NG_HCI_OCF(opcode) - 1)) 684 return (EPERM); 685 } 686 687 if (d && !bit_test(pcb->filter.packet_mask, NG_HCI_CMD_PKT - 1)) 688 return (EPERM); 689 break; 690 691 case NG_HCI_ACL_DATA_PKT: 692 case NG_HCI_SCO_DATA_PKT: 693 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) || 694 !bit_test(pcb->filter.packet_mask, type - 1) || 695 !d) 696 return (EPERM); 697 break; 698 699 case NG_HCI_EVENT_PKT: 700 if (!d) 701 return (EINVAL); 702 703 event = mtod(m, ng_hci_event_pkt_t *)->event - 1; 704 705 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) 706 if (!bit_test(ng_btsocket_hci_raw_sec_filter->events, event)) 707 return (EPERM); 708 709 if (!bit_test(pcb->filter.event_mask, event)) 710 return (EPERM); 711 break; 712 713 default: 714 return (EINVAL); 715 } 716 717 return (0); 718 } /* ng_btsocket_hci_raw_filter */ 719 720 /* 721 * Initialize everything 722 */ 723 724 void 725 ng_btsocket_hci_raw_init(void) 726 { 727 bitstr_t *f = NULL; 728 int error = 0; 729 730 ng_btsocket_hci_raw_node = NULL; 731 ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL; 732 ng_btsocket_hci_raw_ioctl_timeout = 5; 733 734 /* Register Netgraph node type */ 735 error = ng_newtype(&typestruct); 736 if (error != 0) { 737 NG_BTSOCKET_HCI_RAW_ALERT( 738 "%s: Could not register Netgraph node type, error=%d\n", __func__, error); 739 740 return; 741 } 742 743 /* Create Netgrapg node */ 744 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 745 if (error != 0) { 746 NG_BTSOCKET_HCI_RAW_ALERT( 747 "%s: Could not create Netgraph node, error=%d\n", __func__, error); 748 749 ng_btsocket_hci_raw_node = NULL; 750 751 return; 752 } 753 754 error = ng_name_node(ng_btsocket_hci_raw_node, 755 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 756 if (error != 0) { 757 NG_BTSOCKET_HCI_RAW_ALERT( 758 "%s: Could not name Netgraph node, error=%d\n", __func__, error); 759 760 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 761 ng_btsocket_hci_raw_node = NULL; 762 763 return; 764 } 765 766 /* Create input queue */ 767 NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, ifqmaxlen); 768 lockinit(&ng_btsocket_hci_raw_queue_lock, 769 "btsocks_hci_raw_queue_lock", 0, 0); 770 TASK_INIT(&ng_btsocket_hci_raw_task, 0, 771 ng_btsocket_hci_raw_input, NULL); 772 773 /* Create list of sockets */ 774 LIST_INIT(&ng_btsocket_hci_raw_sockets); 775 lockinit(&ng_btsocket_hci_raw_sockets_lock, 776 "btsocks_hci_raw_sockets_lock", 0, 0); 777 778 /* Tokens */ 779 ng_btsocket_hci_raw_token = 0; 780 lockinit(&ng_btsocket_hci_raw_token_lock, 781 "btsocks_hci_raw_token_lock", 0, 0); 782 783 /* 784 * Security filter 785 * XXX never FREE()ed 786 */ 787 788 ng_btsocket_hci_raw_sec_filter = NULL; 789 790 ng_btsocket_hci_raw_sec_filter = kmalloc(sizeof(struct ng_btsocket_hci_raw_sec_filter), 791 M_NETGRAPH_BTSOCKET_HCI_RAW, 792 M_WAITOK | M_NULLOK | M_ZERO); 793 if (ng_btsocket_hci_raw_sec_filter == NULL) { 794 kprintf("%s: Could not allocate security filter!\n", __func__); 795 return; 796 } 797 798 /* 799 * XXX How paranoid can we get? 800 * 801 * Initialize security filter. If bit is set in the mask then 802 * unprivileged socket is allowed to send (receive) this command 803 * (event). 804 */ 805 806 /* Enable all events */ 807 memset(&ng_btsocket_hci_raw_sec_filter->events, 0xff, 808 sizeof(ng_btsocket_hci_raw_sec_filter->events)); 809 810 /* Disable some critical events */ 811 f = ng_btsocket_hci_raw_sec_filter->events; 812 bit_clear(f, NG_HCI_EVENT_RETURN_LINK_KEYS - 1); 813 bit_clear(f, NG_HCI_EVENT_LINK_KEY_NOTIFICATION - 1); 814 bit_clear(f, NG_HCI_EVENT_VENDOR - 1); 815 816 /* Commands - Link control */ 817 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_CONTROL-1]; 818 bit_set(f, NG_HCI_OCF_INQUIRY - 1); 819 bit_set(f, NG_HCI_OCF_INQUIRY_CANCEL - 1); 820 bit_set(f, NG_HCI_OCF_PERIODIC_INQUIRY - 1); 821 bit_set(f, NG_HCI_OCF_EXIT_PERIODIC_INQUIRY - 1); 822 bit_set(f, NG_HCI_OCF_REMOTE_NAME_REQ - 1); 823 bit_set(f, NG_HCI_OCF_READ_REMOTE_FEATURES - 1); 824 bit_set(f, NG_HCI_OCF_READ_REMOTE_VER_INFO - 1); 825 bit_set(f, NG_HCI_OCF_READ_CLOCK_OFFSET - 1); 826 827 /* Commands - Link policy */ 828 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_POLICY-1]; 829 bit_set(f, NG_HCI_OCF_ROLE_DISCOVERY - 1); 830 bit_set(f, NG_HCI_OCF_READ_LINK_POLICY_SETTINGS - 1); 831 832 /* Commands - Host controller and baseband */ 833 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_HC_BASEBAND-1]; 834 bit_set(f, NG_HCI_OCF_READ_PIN_TYPE - 1); 835 bit_set(f, NG_HCI_OCF_READ_LOCAL_NAME - 1); 836 bit_set(f, NG_HCI_OCF_READ_CON_ACCEPT_TIMO - 1); 837 bit_set(f, NG_HCI_OCF_READ_PAGE_TIMO - 1); 838 bit_set(f, NG_HCI_OCF_READ_SCAN_ENABLE - 1); 839 bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_ACTIVITY - 1); 840 bit_set(f, NG_HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY - 1); 841 bit_set(f, NG_HCI_OCF_READ_AUTH_ENABLE - 1); 842 bit_set(f, NG_HCI_OCF_READ_ENCRYPTION_MODE - 1); 843 bit_set(f, NG_HCI_OCF_READ_UNIT_CLASS - 1); 844 bit_set(f, NG_HCI_OCF_READ_VOICE_SETTINGS - 1); 845 bit_set(f, NG_HCI_OCF_READ_AUTO_FLUSH_TIMO - 1); 846 bit_set(f, NG_HCI_OCF_READ_NUM_BROADCAST_RETRANS - 1); 847 bit_set(f, NG_HCI_OCF_READ_HOLD_MODE_ACTIVITY - 1); 848 bit_set(f, NG_HCI_OCF_READ_XMIT_LEVEL - 1); 849 bit_set(f, NG_HCI_OCF_READ_SCO_FLOW_CONTROL - 1); 850 bit_set(f, NG_HCI_OCF_READ_LINK_SUPERVISION_TIMO - 1); 851 bit_set(f, NG_HCI_OCF_READ_SUPPORTED_IAC_NUM - 1); 852 bit_set(f, NG_HCI_OCF_READ_IAC_LAP - 1); 853 bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_PERIOD - 1); 854 bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN - 1); 855 856 /* Commands - Informational */ 857 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_INFO - 1]; 858 bit_set(f, NG_HCI_OCF_READ_LOCAL_VER - 1); 859 bit_set(f, NG_HCI_OCF_READ_LOCAL_FEATURES - 1); 860 bit_set(f, NG_HCI_OCF_READ_BUFFER_SIZE - 1); 861 bit_set(f, NG_HCI_OCF_READ_COUNTRY_CODE - 1); 862 bit_set(f, NG_HCI_OCF_READ_BDADDR - 1); 863 864 /* Commands - Status */ 865 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_STATUS - 1]; 866 bit_set(f, NG_HCI_OCF_READ_FAILED_CONTACT_CNTR - 1); 867 bit_set(f, NG_HCI_OCF_GET_LINK_QUALITY - 1); 868 bit_set(f, NG_HCI_OCF_READ_RSSI - 1); 869 870 /* Commands - Testing */ 871 f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_TESTING - 1]; 872 bit_set(f, NG_HCI_OCF_READ_LOOPBACK_MODE - 1); 873 } /* ng_btsocket_hci_raw_init */ 874 875 /* 876 * Abort connection on socket 877 */ 878 879 void 880 ng_btsocket_hci_raw_abort(netmsg_t msg) 881 { 882 } /* ng_btsocket_hci_raw_abort */ 883 884 #if 0 /* XXX */ 885 void 886 ng_btsocket_hci_raw_close(struct socket *so) 887 { 888 } /* ng_btsocket_hci_raw_close */ 889 #endif 890 891 /* 892 * Create new raw HCI socket 893 */ 894 895 void 896 ng_btsocket_hci_raw_attach(netmsg_t msg) 897 { 898 struct socket *so = msg->attach.base.nm_so; 899 int proto = msg->attach.nm_proto; 900 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 901 int error = 0; 902 903 if (pcb != NULL) { 904 error = EISCONN; 905 goto out; 906 } 907 908 if (ng_btsocket_hci_raw_node == NULL) { 909 error = EPROTONOSUPPORT; 910 goto out; 911 } 912 if (proto != BLUETOOTH_PROTO_HCI) { 913 error = EPROTONOSUPPORT; 914 goto out; 915 } 916 if (so->so_type != SOCK_RAW) { 917 error = ESOCKTNOSUPPORT; 918 goto out; 919 } 920 921 error = soreserve(so, NG_BTSOCKET_HCI_RAW_SENDSPACE, 922 NG_BTSOCKET_HCI_RAW_RECVSPACE, NULL); 923 if (error != 0) 924 goto out; 925 926 pcb = kmalloc(sizeof(*pcb), M_NETGRAPH_BTSOCKET_HCI_RAW, 927 M_WAITOK | M_NULLOK | M_ZERO); 928 if (pcb == NULL) { 929 error = ENOMEM; 930 goto out; 931 } 932 933 so->so_pcb = (caddr_t) pcb; 934 pcb->so = so; 935 936 if (curproc == NULL || 937 caps_priv_check_self(SYSCAP_NONET_BT_RAW) == 0) 938 pcb->flags |= NG_BTSOCKET_HCI_RAW_PRIVILEGED; 939 940 /* 941 * Set default socket filter. By default socket only accepts HCI 942 * Command_Complete and Command_Status event packets. 943 */ 944 945 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1); 946 bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1); 947 948 lockinit(&pcb->pcb_lock, "btsocks_hci_raw_pcb_lock", 0, 0); 949 950 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_EXCLUSIVE); 951 LIST_INSERT_HEAD(&ng_btsocket_hci_raw_sockets, pcb, next); 952 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_RELEASE); 953 954 out: 955 lwkt_replymsg(&msg->attach.base.lmsg, error); 956 } /* ng_btsocket_hci_raw_attach */ 957 958 /* 959 * Bind raw HCI socket 960 */ 961 962 void 963 ng_btsocket_hci_raw_bind(netmsg_t msg) 964 { 965 struct socket *so = msg->bind.base.nm_so; 966 struct sockaddr *nam = msg->bind.nm_nam; 967 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 968 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 969 int error = 0; 970 971 if (pcb == NULL) { 972 error = EINVAL; 973 goto out; 974 } 975 if (ng_btsocket_hci_raw_node == NULL) { 976 error = EINVAL; 977 goto out; 978 } 979 980 if (sa == NULL) { 981 error = EINVAL; 982 goto out; 983 } 984 if (sa->hci_family != AF_BLUETOOTH) { 985 error = EAFNOSUPPORT; 986 goto out; 987 } 988 if (sa->hci_len != sizeof(*sa)) { 989 error = EINVAL; 990 goto out; 991 } 992 if (sa->hci_node[0] == 0) { 993 error = EINVAL; 994 goto out; 995 } 996 997 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 998 bcopy(sa, &pcb->addr, sizeof(pcb->addr)); 999 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1000 1001 out: 1002 lwkt_replymsg(&msg->bind.base.lmsg, error); 1003 } /* ng_btsocket_hci_raw_bind */ 1004 1005 /* 1006 * Connect raw HCI socket 1007 */ 1008 1009 void 1010 ng_btsocket_hci_raw_connect(netmsg_t msg) 1011 { 1012 struct socket *so = msg->connect.base.nm_so; 1013 struct sockaddr *nam = msg->connect.nm_nam; 1014 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1015 struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; 1016 int error = 0; 1017 1018 if (pcb == NULL) { 1019 error = EINVAL; 1020 goto out; 1021 } 1022 if (ng_btsocket_hci_raw_node == NULL) { 1023 error = EINVAL; 1024 goto out; 1025 } 1026 1027 if (sa == NULL) { 1028 error = EINVAL; 1029 goto out; 1030 } 1031 if (sa->hci_family != AF_BLUETOOTH) { 1032 error = EAFNOSUPPORT; 1033 goto out; 1034 } 1035 if (sa->hci_len != sizeof(*sa)) { 1036 error = EINVAL; 1037 goto out; 1038 } 1039 if (sa->hci_node[0] == 0) { 1040 error = EDESTADDRREQ; 1041 goto out; 1042 } 1043 1044 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1045 1046 if (bcmp(sa, &pcb->addr, sizeof(pcb->addr)) != 0) { 1047 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1048 error = EADDRNOTAVAIL; 1049 goto out; 1050 } 1051 1052 soisconnected(so); 1053 1054 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1055 1056 out: 1057 lwkt_replymsg(&msg->connect.base.lmsg, error); 1058 } /* ng_btsocket_hci_raw_connect */ 1059 1060 /* 1061 * Process ioctl on socket 1062 */ 1063 1064 void 1065 ng_btsocket_hci_raw_control(netmsg_t msg) 1066 { 1067 struct socket *so = msg->control.base.nm_so; 1068 u_long cmd = msg->control.nm_cmd; 1069 caddr_t data = msg->control.nm_data; 1070 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1071 char path[NG_NODESIZ + 1]; 1072 struct ng_mesg *ngmsg = NULL; 1073 int error = 0; 1074 1075 if (pcb == NULL) { 1076 error = EINVAL; 1077 goto out; 1078 } 1079 if (ng_btsocket_hci_raw_node == NULL) { 1080 error = EINVAL; 1081 goto out; 1082 } 1083 1084 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1085 1086 /* Check if we have device name */ 1087 if (pcb->addr.hci_node[0] == 0) { 1088 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1089 error = EHOSTUNREACH; 1090 goto out; 1091 } 1092 1093 /* Check if we have pending ioctl() */ 1094 if (pcb->token != 0) { 1095 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1096 error = EBUSY; 1097 goto out; 1098 } 1099 1100 ksnprintf(path, sizeof(path), "%s:", pcb->addr.hci_node); 1101 1102 switch (cmd) { 1103 case SIOC_HCI_RAW_NODE_GET_STATE: { 1104 struct ng_btsocket_hci_raw_node_state *p = 1105 (struct ng_btsocket_hci_raw_node_state *) data; 1106 1107 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1108 NGM_HCI_NODE_GET_STATE, 1109 &p->state, sizeof(p->state)); 1110 } break; 1111 1112 case SIOC_HCI_RAW_NODE_INIT: 1113 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1114 error = ng_btsocket_hci_raw_send_ngmsg(path, 1115 NGM_HCI_NODE_INIT, NULL, 0); 1116 else 1117 error = EPERM; 1118 break; 1119 1120 case SIOC_HCI_RAW_NODE_GET_DEBUG: { 1121 struct ng_btsocket_hci_raw_node_debug *p = 1122 (struct ng_btsocket_hci_raw_node_debug *) data; 1123 1124 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1125 NGM_HCI_NODE_GET_DEBUG, 1126 &p->debug, sizeof(p->debug)); 1127 } break; 1128 1129 case SIOC_HCI_RAW_NODE_SET_DEBUG: { 1130 struct ng_btsocket_hci_raw_node_debug *p = 1131 (struct ng_btsocket_hci_raw_node_debug *) data; 1132 1133 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1134 error = ng_btsocket_hci_raw_send_ngmsg(path, 1135 NGM_HCI_NODE_SET_DEBUG, &p->debug, 1136 sizeof(p->debug)); 1137 else 1138 error = EPERM; 1139 } break; 1140 1141 case SIOC_HCI_RAW_NODE_GET_BUFFER: { 1142 struct ng_btsocket_hci_raw_node_buffer *p = 1143 (struct ng_btsocket_hci_raw_node_buffer *) data; 1144 1145 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1146 NGM_HCI_NODE_GET_BUFFER, 1147 &p->buffer, sizeof(p->buffer)); 1148 } break; 1149 1150 case SIOC_HCI_RAW_NODE_GET_BDADDR: { 1151 struct ng_btsocket_hci_raw_node_bdaddr *p = 1152 (struct ng_btsocket_hci_raw_node_bdaddr *) data; 1153 1154 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1155 NGM_HCI_NODE_GET_BDADDR, 1156 &p->bdaddr, sizeof(p->bdaddr)); 1157 } break; 1158 1159 case SIOC_HCI_RAW_NODE_GET_FEATURES: { 1160 struct ng_btsocket_hci_raw_node_features *p = 1161 (struct ng_btsocket_hci_raw_node_features *) data; 1162 1163 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1164 NGM_HCI_NODE_GET_FEATURES, 1165 &p->features, sizeof(p->features)); 1166 } break; 1167 1168 case SIOC_HCI_RAW_NODE_GET_STAT: { 1169 struct ng_btsocket_hci_raw_node_stat *p = 1170 (struct ng_btsocket_hci_raw_node_stat *) data; 1171 1172 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1173 NGM_HCI_NODE_GET_STAT, 1174 &p->stat, sizeof(p->stat)); 1175 } break; 1176 1177 case SIOC_HCI_RAW_NODE_RESET_STAT: 1178 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1179 error = ng_btsocket_hci_raw_send_ngmsg(path, 1180 NGM_HCI_NODE_RESET_STAT, NULL, 0); 1181 else 1182 error = EPERM; 1183 break; 1184 1185 case SIOC_HCI_RAW_NODE_FLUSH_NEIGHBOR_CACHE: 1186 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1187 error = ng_btsocket_hci_raw_send_ngmsg(path, 1188 NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE, 1189 NULL, 0); 1190 else 1191 error = EPERM; 1192 break; 1193 1194 case SIOC_HCI_RAW_NODE_GET_NEIGHBOR_CACHE: { 1195 struct ng_btsocket_hci_raw_node_neighbor_cache *p = 1196 (struct ng_btsocket_hci_raw_node_neighbor_cache *) data; 1197 ng_hci_node_get_neighbor_cache_ep *p1 = NULL; 1198 ng_hci_node_neighbor_cache_entry_ep *p2 = NULL; 1199 1200 if (p->num_entries <= 0 || 1201 p->num_entries > NG_HCI_MAX_NEIGHBOR_NUM || 1202 p->entries == NULL) { 1203 error = EINVAL; 1204 break; 1205 } 1206 1207 NG_MKMESSAGE(ngmsg, NGM_HCI_COOKIE, 1208 NGM_HCI_NODE_GET_NEIGHBOR_CACHE, 0, M_WAITOK | M_NULLOK); 1209 if (ngmsg == NULL) { 1210 error = ENOMEM; 1211 break; 1212 } 1213 ng_btsocket_hci_raw_get_token(&ngmsg->header.token); 1214 pcb->token = ngmsg->header.token; 1215 pcb->msg = NULL; 1216 1217 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, ngmsg, path, 0); 1218 if (error != 0) { 1219 pcb->token = 0; 1220 break; 1221 } 1222 1223 error = lksleep(&pcb->msg, &pcb->pcb_lock, 1224 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_NEIGHBOR_CACHE) { 1233 /* Return data back to user space */ 1234 p1 = (ng_hci_node_get_neighbor_cache_ep *) 1235 (pcb->msg->data); 1236 p2 = (ng_hci_node_neighbor_cache_entry_ep *) 1237 (p1 + 1); 1238 1239 p->num_entries = min(p->num_entries, p1->num_entries); 1240 if (p->num_entries > 0) 1241 error = copyout((caddr_t) p2, 1242 (caddr_t) p->entries, 1243 p->num_entries * sizeof(*p2)); 1244 } else 1245 error = EINVAL; 1246 1247 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1248 }break; 1249 1250 case SIOC_HCI_RAW_NODE_GET_CON_LIST: { 1251 struct ng_btsocket_hci_raw_con_list *p = 1252 (struct ng_btsocket_hci_raw_con_list *) data; 1253 ng_hci_node_con_list_ep *p1 = NULL; 1254 ng_hci_node_con_ep *p2 = NULL; 1255 1256 if (p->num_connections == 0 || 1257 p->num_connections > NG_HCI_MAX_CON_NUM || 1258 p->connections == NULL) { 1259 error = EINVAL; 1260 break; 1261 } 1262 1263 NG_MKMESSAGE(ngmsg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_CON_LIST, 1264 0, M_WAITOK | M_NULLOK); 1265 if (ngmsg == NULL) { 1266 error = ENOMEM; 1267 break; 1268 } 1269 ng_btsocket_hci_raw_get_token(&ngmsg->header.token); 1270 pcb->token = ngmsg->header.token; 1271 pcb->msg = NULL; 1272 1273 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, ngmsg, path, 0); 1274 if (error != 0) { 1275 pcb->token = 0; 1276 break; 1277 } 1278 1279 error = lksleep(&pcb->msg, &pcb->pcb_lock, 1280 PCATCH, "hcictl", 1281 ng_btsocket_hci_raw_ioctl_timeout * hz); 1282 pcb->token = 0; 1283 1284 if (error != 0) 1285 break; 1286 1287 if (pcb->msg != NULL && 1288 pcb->msg->header.cmd == NGM_HCI_NODE_GET_CON_LIST) { 1289 /* Return data back to user space */ 1290 p1 = (ng_hci_node_con_list_ep *)(pcb->msg->data); 1291 p2 = (ng_hci_node_con_ep *)(p1 + 1); 1292 1293 p->num_connections = min(p->num_connections, 1294 p1->num_connections); 1295 if (p->num_connections > 0) 1296 error = copyout((caddr_t) p2, 1297 (caddr_t) p->connections, 1298 p->num_connections * sizeof(*p2)); 1299 } else 1300 error = EINVAL; 1301 1302 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1303 } break; 1304 1305 case SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK: { 1306 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1307 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1308 data; 1309 1310 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1311 NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK, 1312 &p->policy_mask, sizeof(p->policy_mask)); 1313 } break; 1314 1315 case SIOC_HCI_RAW_NODE_SET_LINK_POLICY_MASK: { 1316 struct ng_btsocket_hci_raw_node_link_policy_mask *p = 1317 (struct ng_btsocket_hci_raw_node_link_policy_mask *) 1318 data; 1319 1320 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1321 error = ng_btsocket_hci_raw_send_ngmsg(path, 1322 NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK, 1323 &p->policy_mask, 1324 sizeof(p->policy_mask)); 1325 else 1326 error = EPERM; 1327 } break; 1328 1329 case SIOC_HCI_RAW_NODE_GET_PACKET_MASK: { 1330 struct ng_btsocket_hci_raw_node_packet_mask *p = 1331 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1332 1333 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1334 NGM_HCI_NODE_GET_PACKET_MASK, 1335 &p->packet_mask, sizeof(p->packet_mask)); 1336 } break; 1337 1338 case SIOC_HCI_RAW_NODE_SET_PACKET_MASK: { 1339 struct ng_btsocket_hci_raw_node_packet_mask *p = 1340 (struct ng_btsocket_hci_raw_node_packet_mask *) data; 1341 1342 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1343 error = ng_btsocket_hci_raw_send_ngmsg(path, 1344 NGM_HCI_NODE_SET_PACKET_MASK, 1345 &p->packet_mask, 1346 sizeof(p->packet_mask)); 1347 else 1348 error = EPERM; 1349 } break; 1350 1351 case SIOC_HCI_RAW_NODE_GET_ROLE_SWITCH: { 1352 struct ng_btsocket_hci_raw_node_role_switch *p = 1353 (struct ng_btsocket_hci_raw_node_role_switch *) data; 1354 1355 error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, 1356 NGM_HCI_NODE_GET_ROLE_SWITCH, 1357 &p->role_switch, sizeof(p->role_switch)); 1358 } break; 1359 1360 case SIOC_HCI_RAW_NODE_SET_ROLE_SWITCH: { 1361 struct ng_btsocket_hci_raw_node_role_switch *p = 1362 (struct ng_btsocket_hci_raw_node_role_switch *) data; 1363 1364 if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) 1365 error = ng_btsocket_hci_raw_send_ngmsg(path, 1366 NGM_HCI_NODE_SET_ROLE_SWITCH, 1367 &p->role_switch, 1368 sizeof(p->role_switch)); 1369 else 1370 error = EPERM; 1371 } break; 1372 1373 case SIOC_HCI_RAW_NODE_LIST_NAMES: { 1374 struct ng_btsocket_hci_raw_node_list_names *nl = 1375 (struct ng_btsocket_hci_raw_node_list_names *) data; 1376 struct nodeinfo *ni = nl->names; 1377 1378 if (nl->num_names == 0) { 1379 error = EINVAL; 1380 break; 1381 } 1382 1383 NG_MKMESSAGE(ngmsg, NGM_GENERIC_COOKIE, NGM_LISTNAMES, 1384 0, M_WAITOK | M_NULLOK); 1385 if (ngmsg == NULL) { 1386 error = ENOMEM; 1387 break; 1388 } 1389 ng_btsocket_hci_raw_get_token(&ngmsg->header.token); 1390 pcb->token = ngmsg->header.token; 1391 pcb->msg = NULL; 1392 1393 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, ngmsg, ".:", 0); 1394 if (error != 0) { 1395 pcb->token = 0; 1396 break; 1397 } 1398 1399 error = lksleep(&pcb->msg, &pcb->pcb_lock, 1400 PCATCH, "hcictl", 1401 ng_btsocket_hci_raw_ioctl_timeout * hz); 1402 pcb->token = 0; 1403 1404 if (error != 0) 1405 break; 1406 1407 if (pcb->msg != NULL && pcb->msg->header.cmd == NGM_LISTNAMES) { 1408 /* Return data back to user space */ 1409 struct namelist *nl1 = (struct namelist *) pcb->msg->data; 1410 struct nodeinfo *ni1 = &nl1->nodeinfo[0]; 1411 1412 while (nl->num_names > 0 && nl1->numnames > 0) { 1413 if (strcmp(ni1->type, NG_HCI_NODE_TYPE) == 0) { 1414 error = copyout((caddr_t) ni1, 1415 (caddr_t) ni, 1416 sizeof(*ni)); 1417 if (error != 0) 1418 break; 1419 1420 nl->num_names --; 1421 ni ++; 1422 } 1423 1424 nl1->numnames --; 1425 ni1 ++; 1426 } 1427 1428 nl->num_names = ni - nl->names; 1429 } else 1430 error = EINVAL; 1431 1432 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 1433 } break; 1434 1435 default: 1436 error = EINVAL; 1437 break; 1438 } 1439 1440 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1441 1442 out: 1443 lwkt_replymsg(&msg->control.base.lmsg, error); 1444 } /* ng_btsocket_hci_raw_control */ 1445 1446 /* 1447 * Process getsockopt/setsockopt system calls 1448 */ 1449 1450 void 1451 ng_btsocket_hci_raw_ctloutput(netmsg_t msg) 1452 { 1453 struct socket *so = msg->ctloutput.base.nm_so; 1454 struct sockopt *sopt = msg->ctloutput.nm_sopt; 1455 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1456 struct ng_btsocket_hci_raw_filter filter; 1457 int error = 0, dir; 1458 1459 if (pcb == NULL) { 1460 error = EINVAL; 1461 goto out; 1462 } 1463 if (ng_btsocket_hci_raw_node == NULL) { 1464 error = EINVAL; 1465 goto out; 1466 } 1467 1468 if (sopt->sopt_level != SOL_HCI_RAW) 1469 goto out; 1470 1471 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1472 1473 switch (sopt->sopt_dir) { 1474 case SOPT_GET: 1475 switch (sopt->sopt_name) { 1476 case SO_HCI_RAW_FILTER: 1477 error = sooptcopyout(sopt, &pcb->filter, 1478 sizeof(pcb->filter)); 1479 break; 1480 1481 case SO_HCI_RAW_DIRECTION: 1482 dir = (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION)?1:0; 1483 error = sooptcopyout(sopt, &dir, sizeof(dir)); 1484 break; 1485 1486 default: 1487 error = EINVAL; 1488 break; 1489 } 1490 break; 1491 1492 case SOPT_SET: 1493 switch (sopt->sopt_name) { 1494 case SO_HCI_RAW_FILTER: 1495 error = sooptcopyin(sopt, &filter, sizeof(filter), 1496 sizeof(filter)); 1497 if (error == 0) 1498 bcopy(&filter, &pcb->filter, 1499 sizeof(pcb->filter)); 1500 break; 1501 1502 case SO_HCI_RAW_DIRECTION: 1503 error = sooptcopyin(sopt, &dir, sizeof(dir), 1504 sizeof(dir)); 1505 if (error != 0) 1506 break; 1507 1508 if (dir) 1509 pcb->flags |= NG_BTSOCKET_HCI_RAW_DIRECTION; 1510 else 1511 pcb->flags &= ~NG_BTSOCKET_HCI_RAW_DIRECTION; 1512 break; 1513 1514 default: 1515 error = EINVAL; 1516 break; 1517 } 1518 break; 1519 1520 default: 1521 error = EINVAL; 1522 break; 1523 } 1524 1525 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1526 1527 out: 1528 lwkt_replymsg(&msg->ctloutput.base.lmsg, error); 1529 } /* ng_btsocket_hci_raw_ctloutput */ 1530 1531 /* 1532 * Detach raw HCI socket 1533 */ 1534 1535 void 1536 ng_btsocket_hci_raw_detach(netmsg_t msg) 1537 { 1538 struct socket *so = msg->detach.base.nm_so; 1539 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1540 int error = 0; 1541 1542 KASSERT(pcb != NULL, ("ng_btsocket_hci_raw_detach: pcb == NULL")); 1543 1544 if (ng_btsocket_hci_raw_node == NULL) 1545 goto out; 1546 1547 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_EXCLUSIVE); 1548 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1549 1550 LIST_REMOVE(pcb, next); 1551 1552 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1553 lockmgr(&ng_btsocket_hci_raw_sockets_lock, LK_RELEASE); 1554 1555 lockuninit(&pcb->pcb_lock); 1556 1557 bzero(pcb, sizeof(*pcb)); 1558 kfree(pcb, M_NETGRAPH_BTSOCKET_HCI_RAW); 1559 1560 so->so_pcb = NULL; 1561 1562 out: 1563 lwkt_replymsg(&msg->detach.base.lmsg, error); 1564 } /* ng_btsocket_hci_raw_detach */ 1565 1566 /* 1567 * Disconnect raw HCI socket 1568 */ 1569 1570 void 1571 ng_btsocket_hci_raw_disconnect(netmsg_t msg) 1572 { 1573 struct socket *so = msg->disconnect.base.nm_so; 1574 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1575 int error = 0; 1576 1577 if (pcb == NULL) { 1578 error = EINVAL; 1579 goto out; 1580 } 1581 if (ng_btsocket_hci_raw_node == NULL) { 1582 error = EINVAL; 1583 goto out; 1584 } 1585 1586 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1587 soisdisconnected(so); 1588 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1589 1590 out: 1591 lwkt_replymsg(&msg->disconnect.base.lmsg, error); 1592 } /* ng_btsocket_hci_raw_disconnect */ 1593 1594 /* 1595 * Get socket peer's address 1596 */ 1597 1598 void 1599 ng_btsocket_hci_raw_peeraddr(netmsg_t msg) 1600 { 1601 return (ng_btsocket_hci_raw_sockaddr(msg)); 1602 } /* ng_btsocket_hci_raw_peeraddr */ 1603 1604 /* 1605 * Send data 1606 */ 1607 1608 void 1609 ng_btsocket_hci_raw_send(netmsg_t msg) 1610 { 1611 struct socket *so = msg->send.base.nm_so; 1612 struct mbuf *control = msg->send.nm_control; 1613 struct mbuf *m = msg->send.nm_m; 1614 struct sockaddr *sa = msg->send.nm_addr; 1615 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1616 struct mbuf *nam = NULL; 1617 int error = 0; 1618 1619 if (ng_btsocket_hci_raw_node == NULL) { 1620 error = ENETDOWN; 1621 goto drop; 1622 } 1623 if (pcb == NULL) { 1624 error = EINVAL; 1625 goto drop; 1626 } 1627 if (control != NULL) { 1628 error = EINVAL; 1629 goto drop; 1630 } 1631 1632 if (m->m_pkthdr.len < sizeof(ng_hci_cmd_pkt_t) || 1633 m->m_pkthdr.len > sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE) { 1634 error = EMSGSIZE; 1635 goto drop; 1636 } 1637 1638 if (m->m_len < sizeof(ng_hci_cmd_pkt_t)) { 1639 if ((m = m_pullup(m, sizeof(ng_hci_cmd_pkt_t))) == NULL) { 1640 error = ENOBUFS; 1641 goto drop; 1642 } 1643 } 1644 if (*mtod(m, u_int8_t *) != NG_HCI_CMD_PKT) { 1645 error = ENOTSUP; 1646 goto drop; 1647 } 1648 1649 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1650 1651 error = ng_btsocket_hci_raw_filter(pcb, m, 0); 1652 if (error != 0) { 1653 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1654 goto drop; 1655 } 1656 1657 if (sa == NULL) { 1658 if (pcb->addr.hci_node[0] == 0) { 1659 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1660 error = EDESTADDRREQ; 1661 goto drop; 1662 } 1663 1664 sa = (struct sockaddr *) &pcb->addr; 1665 } 1666 1667 MGET(nam, M_NOWAIT, MT_SONAME); 1668 if (nam == NULL) { 1669 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1670 error = ENOBUFS; 1671 goto drop; 1672 } 1673 1674 nam->m_len = sizeof(struct sockaddr_hci); 1675 bcopy(sa,mtod(nam, struct sockaddr_hci *),sizeof(struct sockaddr_hci)); 1676 1677 nam->m_next = m; 1678 m = NULL; 1679 1680 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1681 1682 error = ng_send_fn(ng_btsocket_hci_raw_node, NULL, 1683 ng_btsocket_hci_raw_output, nam, 0); 1684 goto out; 1685 1686 drop: 1687 NG_FREE_M(control); /* NG_FREE_M checks for != NULL */ 1688 NG_FREE_M(nam); 1689 NG_FREE_M(m); 1690 1691 out: 1692 lwkt_replymsg(&msg->send.base.lmsg, error); 1693 } /* ng_btsocket_hci_raw_send */ 1694 1695 /* 1696 * Get socket address 1697 */ 1698 1699 void 1700 ng_btsocket_hci_raw_sockaddr(netmsg_t msg) 1701 { 1702 struct socket *so = msg->sockaddr.base.nm_so; 1703 struct sockaddr **nam = msg->sockaddr.nm_nam; 1704 ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); 1705 struct sockaddr_hci sa; 1706 int error = 0; 1707 1708 if (pcb == NULL) { 1709 error = EINVAL; 1710 goto out; 1711 } 1712 if (ng_btsocket_hci_raw_node == NULL) { 1713 error = EINVAL; 1714 goto out; 1715 } 1716 1717 bzero(&sa, sizeof(sa)); 1718 sa.hci_len = sizeof(sa); 1719 sa.hci_family = AF_BLUETOOTH; 1720 1721 lockmgr(&pcb->pcb_lock, LK_EXCLUSIVE); 1722 strlcpy(sa.hci_node, pcb->addr.hci_node, sizeof(sa.hci_node)); 1723 lockmgr(&pcb->pcb_lock, LK_RELEASE); 1724 1725 *nam = dup_sockaddr((struct sockaddr *) &sa); 1726 1727 if (*nam == NULL) 1728 error = ENOMEM; 1729 1730 out: 1731 lwkt_replymsg(&msg->sockaddr.base.lmsg, error); 1732 } /* ng_btsocket_hci_raw_sockaddr */ 1733 1734