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 * $FreeBSD$ 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/ioccom.h> 42#include <sys/kernel.h> 43#include <sys/lock.h> 44#include <sys/malloc.h> 45#include <sys/mbuf.h> 46#include <sys/mutex.h> 47#include <sys/priv.h> 48#include <sys/protosw.h> 49#include <sys/queue.h> 50#include <sys/socket.h> 51#include <sys/socketvar.h> 52#include <sys/sysctl.h> 53#include <sys/taskqueue.h> 54#include <netgraph/ng_message.h> 55#include <netgraph/netgraph.h> 56#include <netgraph/bluetooth/include/ng_bluetooth.h> 57#include <netgraph/bluetooth/include/ng_hci.h> 58#include <netgraph/bluetooth/include/ng_l2cap.h> 59#include <netgraph/bluetooth/include/ng_btsocket.h> 60#include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h> 61 62/* MALLOC define */ 63#ifdef NG_SEPARATE_MALLOC 64static MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_HCI_RAW, "netgraph_btsocks_hci_raw", 65 "Netgraph Bluetooth raw HCI sockets"); 66#else 67#define M_NETGRAPH_BTSOCKET_HCI_RAW M_NETGRAPH 68#endif /* NG_SEPARATE_MALLOC */ 69 70/* Netgraph node methods */ 71static ng_constructor_t ng_btsocket_hci_raw_node_constructor; 72static ng_rcvmsg_t ng_btsocket_hci_raw_node_rcvmsg; 73static ng_shutdown_t ng_btsocket_hci_raw_node_shutdown; 74static ng_newhook_t ng_btsocket_hci_raw_node_newhook; 75static ng_connect_t ng_btsocket_hci_raw_node_connect; 76static ng_rcvdata_t ng_btsocket_hci_raw_node_rcvdata; 77static ng_disconnect_t ng_btsocket_hci_raw_node_disconnect; 78 79static void ng_btsocket_hci_raw_input (void *, int); 80static void ng_btsocket_hci_raw_output(node_p, hook_p, void *, int); 81static void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p, 82 struct mbuf **, 83 struct mbuf *); 84static int ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p, 85 struct mbuf *, int); 86 87#define ng_btsocket_hci_raw_wakeup_input_task() \ 88 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_hci_raw_task) 89 90/* Security filter */ 91struct ng_btsocket_hci_raw_sec_filter { 92 bitstr_t bit_decl(events, 0xff); 93 bitstr_t bit_decl(commands[0x3f], 0x3ff); 94}; 95 96/* Netgraph type descriptor */ 97static struct ng_type typestruct = { 98 .version = NG_ABI_VERSION, 99 .name = NG_BTSOCKET_HCI_RAW_NODE_TYPE, 100 .constructor = ng_btsocket_hci_raw_node_constructor, 101 .rcvmsg = ng_btsocket_hci_raw_node_rcvmsg, 102 .shutdown = ng_btsocket_hci_raw_node_shutdown, 103 .newhook = ng_btsocket_hci_raw_node_newhook, 104 .connect = ng_btsocket_hci_raw_node_connect, 105 .rcvdata = ng_btsocket_hci_raw_node_rcvdata, 106 .disconnect = ng_btsocket_hci_raw_node_disconnect, 107}; 108 109/* Globals */ 110static u_int32_t ng_btsocket_hci_raw_debug_level; 111static u_int32_t ng_btsocket_hci_raw_ioctl_timeout; 112static node_p ng_btsocket_hci_raw_node; 113static struct ng_bt_itemq ng_btsocket_hci_raw_queue; 114static struct mtx ng_btsocket_hci_raw_queue_mtx; 115static struct task ng_btsocket_hci_raw_task; 116static LIST_HEAD(, ng_btsocket_hci_raw_pcb) ng_btsocket_hci_raw_sockets; 117static struct mtx ng_btsocket_hci_raw_sockets_mtx; 118static u_int32_t ng_btsocket_hci_raw_token; 119static struct mtx ng_btsocket_hci_raw_token_mtx; 120static struct ng_btsocket_hci_raw_sec_filter *ng_btsocket_hci_raw_sec_filter; 121static struct timeval ng_btsocket_hci_raw_lasttime; 122static int ng_btsocket_hci_raw_curpps; 123 124/* Sysctl tree */ 125SYSCTL_DECL(_net_bluetooth_hci_sockets); 126static SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw, CTLFLAG_RW, 127 0, "Bluetooth raw HCI sockets family"); 128SYSCTL_UINT(_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"); 131SYSCTL_UINT(_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"); 134SYSCTL_UINT(_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"); 137SYSCTL_UINT(_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"); 140SYSCTL_UINT(_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 ppsratecheck(&ng_btsocket_hci_raw_lasttime, &ng_btsocket_hci_raw_curpps, 1)) \ 148 printf 149 150#define NG_BTSOCKET_HCI_RAW_WARN \ 151 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL && \ 152 ppsratecheck(&ng_btsocket_hci_raw_lasttime, &ng_btsocket_hci_raw_curpps, 1)) \ 153 printf 154 155#define NG_BTSOCKET_HCI_RAW_ERR \ 156 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL && \ 157 ppsratecheck(&ng_btsocket_hci_raw_lasttime, &ng_btsocket_hci_raw_curpps, 1)) \ 158 printf 159 160#define NG_BTSOCKET_HCI_RAW_ALERT \ 161 if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL && \ 162 ppsratecheck(&ng_btsocket_hci_raw_lasttime, &ng_btsocket_hci_raw_curpps, 1)) \ 163 printf 164 165/**************************************************************************** 166 **************************************************************************** 167 ** Netgraph specific 168 **************************************************************************** 169 ****************************************************************************/ 170 171/* 172 * Netgraph node constructor. Do not allow to create node of this type. 173 */ 174 175static int 176ng_btsocket_hci_raw_node_constructor(node_p node) 177{ 178 return (EINVAL); 179} /* ng_btsocket_hci_raw_node_constructor */ 180 181/* 182 * Netgraph node destructor. Just let old node go and create new fresh one. 183 */ 184 185static int 186ng_btsocket_hci_raw_node_shutdown(node_p node) 187{ 188 int error = 0; 189 190 NG_NODE_UNREF(node); 191 192 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 193 if (error != 0) { 194 NG_BTSOCKET_HCI_RAW_ALERT( 195"%s: Could not create Netgraph node, error=%d\n", __func__, error); 196 197 ng_btsocket_hci_raw_node = NULL; 198 199 return (ENOMEM); 200 } 201 202 error = ng_name_node(ng_btsocket_hci_raw_node, 203 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 204 if (error != 0) { 205 NG_BTSOCKET_HCI_RAW_ALERT( 206"%s: Could not name Netgraph node, error=%d\n", __func__, error); 207 208 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 209 ng_btsocket_hci_raw_node = NULL; 210 211 return (EINVAL); 212 } 213 214 return (0); 215} /* ng_btsocket_hci_raw_node_shutdown */ 216 217/* 218 * Create new hook. Just say "yes" 219 */ 220 221static int 222ng_btsocket_hci_raw_node_newhook(node_p node, hook_p hook, char const *name) 223{ 224 return (0); 225} /* ng_btsocket_hci_raw_node_newhook */ 226 227/* 228 * Connect hook. Just say "yes" 229 */ 230 231static int 232ng_btsocket_hci_raw_node_connect(hook_p hook) 233{ 234 return (0); 235} /* ng_btsocket_hci_raw_node_connect */ 236 237/* 238 * Disconnect hook 239 */ 240 241static int 242ng_btsocket_hci_raw_node_disconnect(hook_p hook) 243{ 244 return (0); 245} /* ng_btsocket_hci_raw_node_disconnect */ 246 247/* 248 * Receive control message. 249 * Make sure it is a message from HCI node and it is a response. 250 * Enqueue item and schedule input task. 251 */ 252 253static int 254ng_btsocket_hci_raw_node_rcvmsg(node_p node, item_p item, hook_p lasthook) 255{ 256 struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 257 int error = 0; 258 259 /* 260 * Check for empty sockets list creates LOR when both sender and 261 * receiver device are connected to the same host, so remove it 262 * for now 263 */ 264 265 if (msg != NULL && 266 (msg->header.typecookie == NGM_HCI_COOKIE || 267 msg->header.typecookie == NGM_GENERIC_COOKIE) && 268 msg->header.flags & NGF_RESP) { 269 if (msg->header.token == 0) { 270 NG_FREE_ITEM(item); 271 return (0); 272 } 273 274 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 275 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 276 NG_BTSOCKET_HCI_RAW_ERR( 277"%s: Input queue is full\n", __func__); 278 279 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 280 NG_FREE_ITEM(item); 281 error = ENOBUFS; 282 } else { 283 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 284 error = ng_btsocket_hci_raw_wakeup_input_task(); 285 } 286 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 287 } else { 288 NG_FREE_ITEM(item); 289 error = EINVAL; 290 } 291 292 return (error); 293} /* ng_btsocket_hci_raw_node_rcvmsg */ 294 295/* 296 * Receive packet from the one of our hook. 297 * Prepend every packet with sockaddr_hci and record sender's node name. 298 * Enqueue item and schedule input task. 299 */ 300 301static int 302ng_btsocket_hci_raw_node_rcvdata(hook_p hook, item_p item) 303{ 304 struct mbuf *nam = NULL; 305 int error; 306 307 /* 308 * Check for empty sockets list creates LOR when both sender and 309 * receiver device are connected to the same host, so remove it 310 * for now 311 */ 312 313 MGET(nam, M_DONTWAIT, MT_SONAME); 314 if (nam != NULL) { 315 struct sockaddr_hci *sa = mtod(nam, struct sockaddr_hci *); 316 317 nam->m_len = sizeof(struct sockaddr_hci); 318 319 sa->hci_len = sizeof(*sa); 320 sa->hci_family = AF_BLUETOOTH; 321 strlcpy(sa->hci_node, NG_PEER_NODE_NAME(hook), 322 sizeof(sa->hci_node)); 323 324 NGI_GET_M(item, nam->m_next); 325 NGI_M(item) = nam; 326 327 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 328 if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { 329 NG_BTSOCKET_HCI_RAW_ERR( 330"%s: Input queue is full\n", __func__); 331 332 NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); 333 NG_FREE_ITEM(item); 334 error = ENOBUFS; 335 } else { 336 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); 337 error = ng_btsocket_hci_raw_wakeup_input_task(); 338 } 339 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 340 } else { 341 NG_BTSOCKET_HCI_RAW_ERR( 342"%s: Failed to allocate address mbuf\n", __func__); 343 344 NG_FREE_ITEM(item); 345 error = ENOBUFS; 346 } 347 348 return (error); 349} /* ng_btsocket_hci_raw_node_rcvdata */ 350 351/**************************************************************************** 352 **************************************************************************** 353 ** Sockets specific 354 **************************************************************************** 355 ****************************************************************************/ 356 357/* 358 * Get next token. We need token to avoid theoretical race where process 359 * submits ioctl() message then interrupts ioctl() and re-submits another 360 * ioctl() on the same socket *before* first ioctl() complete. 361 */ 362 363static void 364ng_btsocket_hci_raw_get_token(u_int32_t *token) 365{ 366 mtx_lock(&ng_btsocket_hci_raw_token_mtx); 367 368 if (++ ng_btsocket_hci_raw_token == 0) 369 ng_btsocket_hci_raw_token = 1; 370 371 *token = ng_btsocket_hci_raw_token; 372 373 mtx_unlock(&ng_btsocket_hci_raw_token_mtx); 374} /* ng_btsocket_hci_raw_get_token */ 375 376/* 377 * Send Netgraph message to the node - do not expect reply 378 */ 379 380static int 381ng_btsocket_hci_raw_send_ngmsg(char *path, int cmd, void *arg, int arglen) 382{ 383 struct ng_mesg *msg = NULL; 384 int error = 0; 385 386 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, arglen, M_NOWAIT); 387 if (msg == NULL) 388 return (ENOMEM); 389 390 if (arg != NULL && arglen > 0) 391 bcopy(arg, msg->data, arglen); 392 393 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 394 395 return (error); 396} /* ng_btsocket_hci_raw_send_ngmsg */ 397 398/* 399 * Send Netgraph message to the node (no data) and wait for reply 400 */ 401 402static int 403ng_btsocket_hci_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p pcb, char *path, 404 int cmd, void *rsp, int rsplen) 405{ 406 struct ng_mesg *msg = NULL; 407 int error = 0; 408 409 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 410 411 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, 0, M_NOWAIT); 412 if (msg == NULL) 413 return (ENOMEM); 414 415 ng_btsocket_hci_raw_get_token(&msg->header.token); 416 pcb->token = msg->header.token; 417 pcb->msg = NULL; 418 419 NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); 420 if (error != 0) { 421 pcb->token = 0; 422 return (error); 423 } 424 425 error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "hcictl", 426 ng_btsocket_hci_raw_ioctl_timeout * hz); 427 pcb->token = 0; 428 429 if (error != 0) 430 return (error); 431 432 if (pcb->msg != NULL && pcb->msg->header.cmd == cmd) 433 bcopy(pcb->msg->data, rsp, rsplen); 434 else 435 error = EINVAL; 436 437 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ 438 439 return (0); 440} /* ng_btsocket_hci_raw_send_sync_ngmsg */ 441 442/* 443 * Create control information for the packet 444 */ 445 446static void 447ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf **ctl, 448 struct mbuf *m) 449{ 450 int dir; 451 struct timeval tv; 452 453 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 454 455 if (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION) { 456 dir = (m->m_flags & M_PROTO1)? 1 : 0; 457 *ctl = sbcreatecontrol((caddr_t) &dir, sizeof(dir), 458 SCM_HCI_RAW_DIRECTION, SOL_HCI_RAW); 459 if (*ctl != NULL) 460 ctl = &((*ctl)->m_next); 461 } 462 463 if (pcb->so->so_options & SO_TIMESTAMP) { 464 microtime(&tv); 465 *ctl = sbcreatecontrol((caddr_t) &tv, sizeof(tv), 466 SCM_TIMESTAMP, SOL_SOCKET); 467 if (*ctl != NULL) 468 ctl = &((*ctl)->m_next); 469 } 470} /* ng_btsocket_hci_raw_savctl */ 471 472/* 473 * Raw HCI sockets data input routine 474 */ 475 476static void 477ng_btsocket_hci_raw_data_input(struct mbuf *nam) 478{ 479 ng_btsocket_hci_raw_pcb_p pcb = NULL; 480 struct mbuf *m0 = NULL, *m = NULL; 481 struct sockaddr_hci *sa = NULL; 482 483 m0 = nam->m_next; 484 nam->m_next = NULL; 485 486 KASSERT((nam->m_type == MT_SONAME), 487 ("%s: m_type=%d\n", __func__, nam->m_type)); 488 KASSERT((m0->m_flags & M_PKTHDR), 489 ("%s: m_flags=%#x\n", __func__, m0->m_flags)); 490 491 sa = mtod(nam, struct sockaddr_hci *); 492 493 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 494 495 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 496 497 mtx_lock(&pcb->pcb_mtx); 498 499 /* 500 * If socket was bound then check address and 501 * make sure it matches. 502 */ 503 504 if (pcb->addr.hci_node[0] != 0 && 505 strcmp(sa->hci_node, pcb->addr.hci_node) != 0) 506 goto next; 507 508 /* 509 * Check packet against filters 510 * XXX do we have to call m_pullup() here? 511 */ 512 513 if (ng_btsocket_hci_raw_filter(pcb, m0, 1) != 0) 514 goto next; 515 516 /* 517 * Make a copy of the packet, append to the socket's 518 * receive queue and wakeup socket. sbappendaddr() 519 * will check if socket has enough buffer space. 520 */ 521 522 m = m_dup(m0, M_DONTWAIT); 523 if (m != NULL) { 524 struct mbuf *ctl = NULL; 525 526 ng_btsocket_hci_raw_savctl(pcb, &ctl, m); 527 528 if (sbappendaddr(&pcb->so->so_rcv, 529 (struct sockaddr *) sa, m, ctl)) 530 sorwakeup(pcb->so); 531 else { 532 NG_BTSOCKET_HCI_RAW_INFO( 533"%s: sbappendaddr() failed\n", __func__); 534 535 NG_FREE_M(m); 536 NG_FREE_M(ctl); 537 } 538 } 539next: 540 mtx_unlock(&pcb->pcb_mtx); 541 } 542 543 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 544 545 NG_FREE_M(nam); 546 NG_FREE_M(m0); 547} /* ng_btsocket_hci_raw_data_input */ 548 549/* 550 * Raw HCI sockets message input routine 551 */ 552 553static void 554ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg) 555{ 556 ng_btsocket_hci_raw_pcb_p pcb = NULL; 557 558 mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); 559 560 LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { 561 mtx_lock(&pcb->pcb_mtx); 562 563 if (msg->header.token == pcb->token) { 564 pcb->msg = msg; 565 wakeup(&pcb->msg); 566 567 mtx_unlock(&pcb->pcb_mtx); 568 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 569 570 return; 571 } 572 573 mtx_unlock(&pcb->pcb_mtx); 574 } 575 576 mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); 577 578 NG_FREE_MSG(msg); /* checks for != NULL */ 579} /* ng_btsocket_hci_raw_msg_input */ 580 581/* 582 * Raw HCI sockets input routines 583 */ 584 585static void 586ng_btsocket_hci_raw_input(void *context, int pending) 587{ 588 item_p item = NULL; 589 590 for (;;) { 591 mtx_lock(&ng_btsocket_hci_raw_queue_mtx); 592 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item); 593 mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); 594 595 if (item == NULL) 596 break; 597 598 switch(item->el_flags & NGQF_TYPE) { 599 case NGQF_DATA: { 600 struct mbuf *m = NULL; 601 602 NGI_GET_M(item, m); 603 ng_btsocket_hci_raw_data_input(m); 604 } break; 605 606 case NGQF_MESG: { 607 struct ng_mesg *msg = NULL; 608 609 NGI_GET_MSG(item, msg); 610 ng_btsocket_hci_raw_msg_input(msg); 611 } break; 612 613 default: 614 KASSERT(0, 615("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 616 break; 617 } 618 619 NG_FREE_ITEM(item); 620 } 621} /* ng_btsocket_hci_raw_input */ 622 623/* 624 * Raw HCI sockets output routine 625 */ 626 627static void 628ng_btsocket_hci_raw_output(node_p node, hook_p hook, void *arg1, int arg2) 629{ 630 struct mbuf *nam = (struct mbuf *) arg1, *m = NULL; 631 struct sockaddr_hci *sa = NULL; 632 int error; 633 634 m = nam->m_next; 635 nam->m_next = NULL; 636 637 KASSERT((nam->m_type == MT_SONAME), 638 ("%s: m_type=%d\n", __func__, nam->m_type)); 639 KASSERT((m->m_flags & M_PKTHDR), 640 ("%s: m_flags=%#x\n", __func__, m->m_flags)); 641 642 sa = mtod(nam, struct sockaddr_hci *); 643 644 /* 645 * Find downstream hook 646 * XXX For now access node hook list directly. Should be safe because 647 * we used ng_send_fn() and we should have exclusive lock on the node. 648 */ 649 650 LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) { 651 if (hook == NULL || NG_HOOK_NOT_VALID(hook) || 652 NG_NODE_NOT_VALID(NG_PEER_NODE(hook))) 653 continue; 654 655 if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) { 656 NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */ 657 break; 658 } 659 } 660 661 NG_FREE_M(nam); /* check for != NULL */ 662 NG_FREE_M(m); 663} /* ng_btsocket_hci_raw_output */ 664 665/* 666 * Check frame against security and socket filters. 667 * d (direction bit) == 1 means incoming frame. 668 */ 669 670static int 671ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf *m, int d) 672{ 673 int type, event, opcode; 674 675 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 676 677 switch ((type = *mtod(m, u_int8_t *))) { 678 case NG_HCI_CMD_PKT: 679 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) { 680 opcode = le16toh(mtod(m, ng_hci_cmd_pkt_t *)->opcode); 681 682 if (!bit_test( 683ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF(opcode) - 1], 684NG_HCI_OCF(opcode) - 1)) 685 return (EPERM); 686 } 687 688 if (d && !bit_test(pcb->filter.packet_mask, NG_HCI_CMD_PKT - 1)) 689 return (EPERM); 690 break; 691 692 case NG_HCI_ACL_DATA_PKT: 693 case NG_HCI_SCO_DATA_PKT: 694 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) || 695 !bit_test(pcb->filter.packet_mask, type - 1) || 696 !d) 697 return (EPERM); 698 break; 699 700 case NG_HCI_EVENT_PKT: 701 if (!d) 702 return (EINVAL); 703 704 event = mtod(m, ng_hci_event_pkt_t *)->event - 1; 705 706 if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) 707 if (!bit_test(ng_btsocket_hci_raw_sec_filter->events, event)) 708 return (EPERM); 709 710 if (!bit_test(pcb->filter.event_mask, event)) 711 return (EPERM); 712 break; 713 714 default: 715 return (EINVAL); 716 } 717 718 return (0); 719} /* ng_btsocket_hci_raw_filter */ 720 721/* 722 * Initialize everything 723 */ 724 725void 726ng_btsocket_hci_raw_init(void) 727{ 728 bitstr_t *f = NULL; 729 int error = 0; 730 731 ng_btsocket_hci_raw_node = NULL; 732 ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL; 733 ng_btsocket_hci_raw_ioctl_timeout = 5; 734 735 /* Register Netgraph node type */ 736 error = ng_newtype(&typestruct); 737 if (error != 0) { 738 NG_BTSOCKET_HCI_RAW_ALERT( 739"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 740 741 return; 742 } 743 744 /* Create Netgrapg node */ 745 error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); 746 if (error != 0) { 747 NG_BTSOCKET_HCI_RAW_ALERT( 748"%s: Could not create Netgraph node, error=%d\n", __func__, error); 749 750 ng_btsocket_hci_raw_node = NULL; 751 752 return; 753 } 754 755 error = ng_name_node(ng_btsocket_hci_raw_node, 756 NG_BTSOCKET_HCI_RAW_NODE_TYPE); 757 if (error != 0) { 758 NG_BTSOCKET_HCI_RAW_ALERT( 759"%s: Could not name Netgraph node, error=%d\n", __func__, error); 760 761 NG_NODE_UNREF(ng_btsocket_hci_raw_node); 762 ng_btsocket_hci_raw_node = NULL; 763 764 return; 765 } 766 767 /* Create input queue */ 768 NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, 300); 769 mtx_init(&ng_btsocket_hci_raw_queue_mtx, 770 "btsocks_hci_raw_queue_mtx", NULL, MTX_DEF); 771 TASK_INIT(&ng_btsocket_hci_raw_task, 0, 772 ng_btsocket_hci_raw_input, NULL); 773 774 /* Create list of sockets */ 775 LIST_INIT(&ng_btsocket_hci_raw_sockets); 776 mtx_init(&ng_btsocket_hci_raw_sockets_mtx, 777 "btsocks_hci_raw_sockets_mtx", NULL, MTX_DEF); 778 779 /* Tokens */ 780 ng_btsocket_hci_raw_token = 0; 781 mtx_init(&ng_btsocket_hci_raw_token_mtx, 782 "btsocks_hci_raw_token_mtx", NULL, MTX_DEF); 783 784 /* 785 * Security filter 786 * XXX never free()ed 787 */ 788 ng_btsocket_hci_raw_sec_filter = 789 malloc(sizeof(struct ng_btsocket_hci_raw_sec_filter), 790 M_NETGRAPH_BTSOCKET_HCI_RAW, M_NOWAIT|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 878void 879ng_btsocket_hci_raw_abort(struct socket *so) 880{ 881} /* ng_btsocket_hci_raw_abort */ 882 883void 884ng_btsocket_hci_raw_close(struct socket *so) 885{ 886} /* ng_btsocket_hci_raw_close */ 887 888/* 889 * Create new raw HCI socket 890 */ 891 892int 893ng_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 pcb = malloc(sizeof(*pcb), 914 M_NETGRAPH_BTSOCKET_HCI_RAW, M_NOWAIT|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 945int 946ng_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 977int 978ng_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 1016int 1017ng_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_NOWAIT); 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_NOWAIT); 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_NOWAIT); 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 1393int 1394ng_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 1471void 1472ng_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 1501int 1502ng_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 1522int 1523ng_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 1532int 1533ng_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, M_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)); 1605drop: 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 1617int 1618ng_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_NOWAIT); 1637 1638 return ((*nam == NULL)? ENOMEM : 0); 1639} /* ng_btsocket_hci_raw_sockaddr */ 1640 1641