1/* 2 * ng_btsocket_sco.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_sco.c,v 1.2 2005/10/31 18:08:51 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/protosw.h> 48#include <sys/queue.h> 49#include <sys/socket.h> 50#include <sys/socketvar.h> 51#include <sys/sysctl.h> 52#include <sys/taskqueue.h> 53 54#include <net/vnet.h> 55 56#include <netgraph/ng_message.h> 57#include <netgraph/netgraph.h> 58#include <netgraph/bluetooth/include/ng_bluetooth.h> 59#include <netgraph/bluetooth/include/ng_hci.h> 60#include <netgraph/bluetooth/include/ng_l2cap.h> 61#include <netgraph/bluetooth/include/ng_btsocket.h> 62#include <netgraph/bluetooth/include/ng_btsocket_sco.h> 63 64/* MALLOC define */ 65#ifdef NG_SEPARATE_MALLOC 66static MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_SCO, "netgraph_btsocks_sco", 67 "Netgraph Bluetooth SCO sockets"); 68#else 69#define M_NETGRAPH_BTSOCKET_SCO M_NETGRAPH 70#endif /* NG_SEPARATE_MALLOC */ 71 72/* Netgraph node methods */ 73static ng_constructor_t ng_btsocket_sco_node_constructor; 74static ng_rcvmsg_t ng_btsocket_sco_node_rcvmsg; 75static ng_shutdown_t ng_btsocket_sco_node_shutdown; 76static ng_newhook_t ng_btsocket_sco_node_newhook; 77static ng_connect_t ng_btsocket_sco_node_connect; 78static ng_rcvdata_t ng_btsocket_sco_node_rcvdata; 79static ng_disconnect_t ng_btsocket_sco_node_disconnect; 80 81static void ng_btsocket_sco_input (void *, int); 82static void ng_btsocket_sco_rtclean (void *, int); 83 84/* Netgraph type descriptor */ 85static struct ng_type typestruct = { 86 .version = NG_ABI_VERSION, 87 .name = NG_BTSOCKET_SCO_NODE_TYPE, 88 .constructor = ng_btsocket_sco_node_constructor, 89 .rcvmsg = ng_btsocket_sco_node_rcvmsg, 90 .shutdown = ng_btsocket_sco_node_shutdown, 91 .newhook = ng_btsocket_sco_node_newhook, 92 .connect = ng_btsocket_sco_node_connect, 93 .rcvdata = ng_btsocket_sco_node_rcvdata, 94 .disconnect = ng_btsocket_sco_node_disconnect, 95}; 96 97/* Globals */ 98static u_int32_t ng_btsocket_sco_debug_level; 99static node_p ng_btsocket_sco_node; 100static struct ng_bt_itemq ng_btsocket_sco_queue; 101static struct mtx ng_btsocket_sco_queue_mtx; 102static struct task ng_btsocket_sco_queue_task; 103static struct mtx ng_btsocket_sco_sockets_mtx; 104static LIST_HEAD(, ng_btsocket_sco_pcb) ng_btsocket_sco_sockets; 105static LIST_HEAD(, ng_btsocket_sco_rtentry) ng_btsocket_sco_rt; 106static struct mtx ng_btsocket_sco_rt_mtx; 107static struct task ng_btsocket_sco_rt_task; 108static struct timeval ng_btsocket_sco_lasttime; 109static int ng_btsocket_sco_curpps; 110 111/* Sysctl tree */ 112SYSCTL_DECL(_net_bluetooth_sco_sockets); 113static SYSCTL_NODE(_net_bluetooth_sco_sockets, OID_AUTO, seq, CTLFLAG_RW, 114 0, "Bluetooth SEQPACKET SCO sockets family"); 115SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, debug_level, 116 CTLFLAG_RW, 117 &ng_btsocket_sco_debug_level, NG_BTSOCKET_WARN_LEVEL, 118 "Bluetooth SEQPACKET SCO sockets debug level"); 119SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, queue_len, 120 CTLFLAG_RD, 121 &ng_btsocket_sco_queue.len, 0, 122 "Bluetooth SEQPACKET SCO sockets input queue length"); 123SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, queue_maxlen, 124 CTLFLAG_RD, 125 &ng_btsocket_sco_queue.maxlen, 0, 126 "Bluetooth SEQPACKET SCO sockets input queue max. length"); 127SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, queue_drops, 128 CTLFLAG_RD, 129 &ng_btsocket_sco_queue.drops, 0, 130 "Bluetooth SEQPACKET SCO sockets input queue drops"); 131 132/* Debug */ 133#define NG_BTSOCKET_SCO_INFO \ 134 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_INFO_LEVEL && \ 135 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 136 printf 137 138#define NG_BTSOCKET_SCO_WARN \ 139 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_WARN_LEVEL && \ 140 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 141 printf 142 143#define NG_BTSOCKET_SCO_ERR \ 144 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_ERR_LEVEL && \ 145 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 146 printf 147 148#define NG_BTSOCKET_SCO_ALERT \ 149 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_ALERT_LEVEL && \ 150 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 151 printf 152 153/* 154 * Netgraph message processing routines 155 */ 156 157static int ng_btsocket_sco_process_lp_con_cfm 158 (struct ng_mesg *, ng_btsocket_sco_rtentry_p); 159static int ng_btsocket_sco_process_lp_con_ind 160 (struct ng_mesg *, ng_btsocket_sco_rtentry_p); 161static int ng_btsocket_sco_process_lp_discon_ind 162 (struct ng_mesg *, ng_btsocket_sco_rtentry_p); 163 164/* 165 * Send LP messages to the lower layer 166 */ 167 168static int ng_btsocket_sco_send_lp_con_req 169 (ng_btsocket_sco_pcb_p); 170static int ng_btsocket_sco_send_lp_con_rsp 171 (ng_btsocket_sco_rtentry_p, bdaddr_p, int); 172static int ng_btsocket_sco_send_lp_discon_req 173 (ng_btsocket_sco_pcb_p); 174 175static int ng_btsocket_sco_send2 176 (ng_btsocket_sco_pcb_p); 177 178/* 179 * Timeout processing routines 180 */ 181 182static void ng_btsocket_sco_timeout (ng_btsocket_sco_pcb_p); 183static void ng_btsocket_sco_untimeout (ng_btsocket_sco_pcb_p); 184static void ng_btsocket_sco_process_timeout (void *); 185 186/* 187 * Other stuff 188 */ 189 190static ng_btsocket_sco_pcb_p ng_btsocket_sco_pcb_by_addr(bdaddr_p); 191static ng_btsocket_sco_pcb_p ng_btsocket_sco_pcb_by_handle(bdaddr_p, int); 192static ng_btsocket_sco_pcb_p ng_btsocket_sco_pcb_by_addrs(bdaddr_p, bdaddr_p); 193 194#define ng_btsocket_sco_wakeup_input_task() \ 195 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_sco_queue_task) 196 197#define ng_btsocket_sco_wakeup_route_task() \ 198 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_sco_rt_task) 199 200/***************************************************************************** 201 ***************************************************************************** 202 ** Netgraph node interface 203 ***************************************************************************** 204 *****************************************************************************/ 205 206/* 207 * Netgraph node constructor. Do not allow to create node of this type. 208 */ 209 210static int 211ng_btsocket_sco_node_constructor(node_p node) 212{ 213 return (EINVAL); 214} /* ng_btsocket_sco_node_constructor */ 215 216/* 217 * Do local shutdown processing. Let old node go and create new fresh one. 218 */ 219 220static int 221ng_btsocket_sco_node_shutdown(node_p node) 222{ 223 int error = 0; 224 225 NG_NODE_UNREF(node); 226 227 /* Create new node */ 228 error = ng_make_node_common(&typestruct, &ng_btsocket_sco_node); 229 if (error != 0) { 230 NG_BTSOCKET_SCO_ALERT( 231"%s: Could not create Netgraph node, error=%d\n", __func__, error); 232 233 ng_btsocket_sco_node = NULL; 234 235 return (error); 236 } 237 238 error = ng_name_node(ng_btsocket_sco_node, 239 NG_BTSOCKET_SCO_NODE_TYPE); 240 if (error != 0) { 241 NG_BTSOCKET_SCO_ALERT( 242"%s: Could not name Netgraph node, error=%d\n", __func__, error); 243 244 NG_NODE_UNREF(ng_btsocket_sco_node); 245 ng_btsocket_sco_node = NULL; 246 247 return (error); 248 } 249 250 return (0); 251} /* ng_btsocket_sco_node_shutdown */ 252 253/* 254 * We allow any hook to be connected to the node. 255 */ 256 257static int 258ng_btsocket_sco_node_newhook(node_p node, hook_p hook, char const *name) 259{ 260 return (0); 261} /* ng_btsocket_sco_node_newhook */ 262 263/* 264 * Just say "YEP, that's OK by me!" 265 */ 266 267static int 268ng_btsocket_sco_node_connect(hook_p hook) 269{ 270 NG_HOOK_SET_PRIVATE(hook, NULL); 271 NG_HOOK_REF(hook); /* Keep extra reference to the hook */ 272 273#if 0 274 NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook)); 275 NG_HOOK_FORCE_QUEUE(hook); 276#endif 277 278 return (0); 279} /* ng_btsocket_sco_node_connect */ 280 281/* 282 * Hook disconnection. Schedule route cleanup task 283 */ 284 285static int 286ng_btsocket_sco_node_disconnect(hook_p hook) 287{ 288 /* 289 * If hook has private information than we must have this hook in 290 * the routing table and must schedule cleaning for the routing table. 291 * Otherwise hook was connected but we never got "hook_info" message, 292 * so we have never added this hook to the routing table and it save 293 * to just delete it. 294 */ 295 296 if (NG_HOOK_PRIVATE(hook) != NULL) 297 return (ng_btsocket_sco_wakeup_route_task()); 298 299 NG_HOOK_UNREF(hook); /* Remove extra reference */ 300 301 return (0); 302} /* ng_btsocket_sco_node_disconnect */ 303 304/* 305 * Process incoming messages 306 */ 307 308static int 309ng_btsocket_sco_node_rcvmsg(node_p node, item_p item, hook_p hook) 310{ 311 struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 312 int error = 0; 313 314 if (msg != NULL && msg->header.typecookie == NGM_HCI_COOKIE) { 315 mtx_lock(&ng_btsocket_sco_queue_mtx); 316 if (NG_BT_ITEMQ_FULL(&ng_btsocket_sco_queue)) { 317 NG_BTSOCKET_SCO_ERR( 318"%s: Input queue is full (msg)\n", __func__); 319 320 NG_BT_ITEMQ_DROP(&ng_btsocket_sco_queue); 321 NG_FREE_ITEM(item); 322 error = ENOBUFS; 323 } else { 324 if (hook != NULL) { 325 NG_HOOK_REF(hook); 326 NGI_SET_HOOK(item, hook); 327 } 328 329 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_sco_queue, item); 330 error = ng_btsocket_sco_wakeup_input_task(); 331 } 332 mtx_unlock(&ng_btsocket_sco_queue_mtx); 333 } else { 334 NG_FREE_ITEM(item); 335 error = EINVAL; 336 } 337 338 return (error); 339} /* ng_btsocket_sco_node_rcvmsg */ 340 341/* 342 * Receive data on a hook 343 */ 344 345static int 346ng_btsocket_sco_node_rcvdata(hook_p hook, item_p item) 347{ 348 int error = 0; 349 350 mtx_lock(&ng_btsocket_sco_queue_mtx); 351 if (NG_BT_ITEMQ_FULL(&ng_btsocket_sco_queue)) { 352 NG_BTSOCKET_SCO_ERR( 353"%s: Input queue is full (data)\n", __func__); 354 355 NG_BT_ITEMQ_DROP(&ng_btsocket_sco_queue); 356 NG_FREE_ITEM(item); 357 error = ENOBUFS; 358 } else { 359 NG_HOOK_REF(hook); 360 NGI_SET_HOOK(item, hook); 361 362 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_sco_queue, item); 363 error = ng_btsocket_sco_wakeup_input_task(); 364 } 365 mtx_unlock(&ng_btsocket_sco_queue_mtx); 366 367 return (error); 368} /* ng_btsocket_sco_node_rcvdata */ 369 370/* 371 * Process LP_ConnectCfm event from the lower layer protocol 372 */ 373 374static int 375ng_btsocket_sco_process_lp_con_cfm(struct ng_mesg *msg, 376 ng_btsocket_sco_rtentry_p rt) 377{ 378 ng_hci_lp_con_cfm_ep *ep = NULL; 379 ng_btsocket_sco_pcb_t *pcb = NULL; 380 int error = 0; 381 382 if (msg->header.arglen != sizeof(*ep)) 383 return (EMSGSIZE); 384 385 ep = (ng_hci_lp_con_cfm_ep *)(msg->data); 386 387 mtx_lock(&ng_btsocket_sco_sockets_mtx); 388 389 /* Look for the socket with the token */ 390 pcb = ng_btsocket_sco_pcb_by_addrs(&rt->src, &ep->bdaddr); 391 if (pcb == NULL) { 392 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 393 return (ENOENT); 394 } 395 396 /* pcb is locked */ 397 398 NG_BTSOCKET_SCO_INFO( 399"%s: Got LP_ConnectCfm response, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 400"dst bdaddr=%x:%x:%x:%x:%x:%x, status=%d, handle=%d, state=%d\n", 401 __func__, 402 pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 403 pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 404 pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 405 pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 406 ep->status, ep->con_handle, pcb->state); 407 408 if (pcb->state != NG_BTSOCKET_SCO_CONNECTING) { 409 mtx_unlock(&pcb->pcb_mtx); 410 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 411 412 return (ENOENT); 413 } 414 415 ng_btsocket_sco_untimeout(pcb); 416 417 if (ep->status == 0) { 418 /* 419 * Connection is open. Update connection handle and 420 * socket state 421 */ 422 423 pcb->con_handle = ep->con_handle; 424 pcb->state = NG_BTSOCKET_SCO_OPEN; 425 soisconnected(pcb->so); 426 } else { 427 /* 428 * We have failed to open connection, so disconnect the socket 429 */ 430 431 pcb->so->so_error = ECONNREFUSED; /* XXX convert status ??? */ 432 pcb->state = NG_BTSOCKET_SCO_CLOSED; 433 soisdisconnected(pcb->so); 434 } 435 436 mtx_unlock(&pcb->pcb_mtx); 437 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 438 439 return (error); 440} /* ng_btsocket_sco_process_lp_con_cfm */ 441 442/* 443 * Process LP_ConnectInd indicator. Find socket that listens on address. 444 * Find exact or closest match. 445 */ 446 447static int 448ng_btsocket_sco_process_lp_con_ind(struct ng_mesg *msg, 449 ng_btsocket_sco_rtentry_p rt) 450{ 451 ng_hci_lp_con_ind_ep *ep = NULL; 452 ng_btsocket_sco_pcb_t *pcb = NULL, *pcb1 = NULL; 453 int error = 0; 454 u_int16_t status = 0; 455 456 if (msg->header.arglen != sizeof(*ep)) 457 return (EMSGSIZE); 458 459 ep = (ng_hci_lp_con_ind_ep *)(msg->data); 460 461 NG_BTSOCKET_SCO_INFO( 462"%s: Got LP_ConnectInd indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 463"dst bdaddr=%x:%x:%x:%x:%x:%x\n", 464 __func__, 465 rt->src.b[5], rt->src.b[4], rt->src.b[3], 466 rt->src.b[2], rt->src.b[1], rt->src.b[0], 467 ep->bdaddr.b[5], ep->bdaddr.b[4], ep->bdaddr.b[3], 468 ep->bdaddr.b[2], ep->bdaddr.b[1], ep->bdaddr.b[0]); 469 470 mtx_lock(&ng_btsocket_sco_sockets_mtx); 471 472 pcb = ng_btsocket_sco_pcb_by_addr(&rt->src); 473 if (pcb != NULL) { 474 struct socket *so1 = NULL; 475 476 /* pcb is locked */ 477 478 /* 479 * First check the pending connections queue and if we have 480 * space then create new socket and set proper source address. 481 */ 482 483 if (pcb->so->so_qlen <= pcb->so->so_qlimit) { 484 CURVNET_SET(pcb->so->so_vnet); 485 so1 = sonewconn(pcb->so, 0); 486 CURVNET_RESTORE(); 487 } 488 489 if (so1 == NULL) { 490 status = 0x0d; /* Rejected due to limited resources */ 491 goto respond; 492 } 493 494 /* 495 * If we got here than we have created new socket. So complete 496 * connection. If we we listening on specific address then copy 497 * source address from listening socket, otherwise copy source 498 * address from hook's routing information. 499 */ 500 501 pcb1 = so2sco_pcb(so1); 502 KASSERT((pcb1 != NULL), 503("%s: pcb1 == NULL\n", __func__)); 504 505 mtx_lock(&pcb1->pcb_mtx); 506 507 if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)) != 0) 508 bcopy(&pcb->src, &pcb1->src, sizeof(pcb1->src)); 509 else 510 bcopy(&rt->src, &pcb1->src, sizeof(pcb1->src)); 511 512 pcb1->flags &= ~NG_BTSOCKET_SCO_CLIENT; 513 514 bcopy(&ep->bdaddr, &pcb1->dst, sizeof(pcb1->dst)); 515 pcb1->rt = rt; 516 } else 517 /* Nobody listens on requested BDADDR */ 518 status = 0x1f; /* Unspecified Error */ 519 520respond: 521 error = ng_btsocket_sco_send_lp_con_rsp(rt, &ep->bdaddr, status); 522 if (pcb1 != NULL) { 523 if (error != 0) { 524 pcb1->so->so_error = error; 525 pcb1->state = NG_BTSOCKET_SCO_CLOSED; 526 soisdisconnected(pcb1->so); 527 } else { 528 pcb1->state = NG_BTSOCKET_SCO_CONNECTING; 529 soisconnecting(pcb1->so); 530 531 ng_btsocket_sco_timeout(pcb1); 532 } 533 534 mtx_unlock(&pcb1->pcb_mtx); 535 } 536 537 if (pcb != NULL) 538 mtx_unlock(&pcb->pcb_mtx); 539 540 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 541 542 return (error); 543} /* ng_btsocket_sco_process_lp_con_ind */ 544 545/* 546 * Process LP_DisconnectInd indicator 547 */ 548 549static int 550ng_btsocket_sco_process_lp_discon_ind(struct ng_mesg *msg, 551 ng_btsocket_sco_rtentry_p rt) 552{ 553 ng_hci_lp_discon_ind_ep *ep = NULL; 554 ng_btsocket_sco_pcb_t *pcb = NULL; 555 556 /* Check message */ 557 if (msg->header.arglen != sizeof(*ep)) 558 return (EMSGSIZE); 559 560 ep = (ng_hci_lp_discon_ind_ep *)(msg->data); 561 562 mtx_lock(&ng_btsocket_sco_sockets_mtx); 563 564 /* Look for the socket with given channel ID */ 565 pcb = ng_btsocket_sco_pcb_by_handle(&rt->src, ep->con_handle); 566 if (pcb == NULL) { 567 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 568 return (0); 569 } 570 571 /* 572 * Disconnect the socket. If there was any pending request we can 573 * not do anything here anyway. 574 */ 575 576 /* pcb is locked */ 577 578 NG_BTSOCKET_SCO_INFO( 579"%s: Got LP_DisconnectInd indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 580"dst bdaddr=%x:%x:%x:%x:%x:%x, handle=%d, state=%d\n", 581 __func__, 582 pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 583 pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 584 pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 585 pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 586 pcb->con_handle, pcb->state); 587 588 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 589 ng_btsocket_sco_untimeout(pcb); 590 591 pcb->state = NG_BTSOCKET_SCO_CLOSED; 592 soisdisconnected(pcb->so); 593 594 mtx_unlock(&pcb->pcb_mtx); 595 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 596 597 return (0); 598} /* ng_btsocket_sco_process_lp_discon_ind */ 599 600/* 601 * Send LP_ConnectReq request 602 */ 603 604static int 605ng_btsocket_sco_send_lp_con_req(ng_btsocket_sco_pcb_p pcb) 606{ 607 struct ng_mesg *msg = NULL; 608 ng_hci_lp_con_req_ep *ep = NULL; 609 int error = 0; 610 611 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 612 613 if (pcb->rt == NULL || 614 pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 615 return (ENETDOWN); 616 617 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_CON_REQ, 618 sizeof(*ep), M_NOWAIT); 619 if (msg == NULL) 620 return (ENOMEM); 621 622 ep = (ng_hci_lp_con_req_ep *)(msg->data); 623 ep->link_type = NG_HCI_LINK_SCO; 624 bcopy(&pcb->dst, &ep->bdaddr, sizeof(ep->bdaddr)); 625 626 NG_SEND_MSG_HOOK(error, ng_btsocket_sco_node, msg, pcb->rt->hook, 0); 627 628 return (error); 629} /* ng_btsocket_sco_send_lp_con_req */ 630 631/* 632 * Send LP_ConnectRsp response 633 */ 634 635static int 636ng_btsocket_sco_send_lp_con_rsp(ng_btsocket_sco_rtentry_p rt, bdaddr_p dst, int status) 637{ 638 struct ng_mesg *msg = NULL; 639 ng_hci_lp_con_rsp_ep *ep = NULL; 640 int error = 0; 641 642 if (rt == NULL || rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 643 return (ENETDOWN); 644 645 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_CON_RSP, 646 sizeof(*ep), M_NOWAIT); 647 if (msg == NULL) 648 return (ENOMEM); 649 650 ep = (ng_hci_lp_con_rsp_ep *)(msg->data); 651 ep->status = status; 652 ep->link_type = NG_HCI_LINK_SCO; 653 bcopy(dst, &ep->bdaddr, sizeof(ep->bdaddr)); 654 655 NG_SEND_MSG_HOOK(error, ng_btsocket_sco_node, msg, rt->hook, 0); 656 657 return (error); 658} /* ng_btsocket_sco_send_lp_con_rsp */ 659 660/* 661 * Send LP_DisconReq request 662 */ 663 664static int 665ng_btsocket_sco_send_lp_discon_req(ng_btsocket_sco_pcb_p pcb) 666{ 667 struct ng_mesg *msg = NULL; 668 ng_hci_lp_discon_req_ep *ep = NULL; 669 int error = 0; 670 671 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 672 673 if (pcb->rt == NULL || 674 pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 675 return (ENETDOWN); 676 677 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_DISCON_REQ, 678 sizeof(*ep), M_NOWAIT); 679 if (msg == NULL) 680 return (ENOMEM); 681 682 ep = (ng_hci_lp_discon_req_ep *)(msg->data); 683 ep->con_handle = pcb->con_handle; 684 ep->reason = 0x13; /* User Ended Connection */ 685 686 NG_SEND_MSG_HOOK(error, ng_btsocket_sco_node, msg, pcb->rt->hook, 0); 687 688 return (error); 689} /* ng_btsocket_sco_send_lp_discon_req */ 690 691/***************************************************************************** 692 ***************************************************************************** 693 ** Socket interface 694 ***************************************************************************** 695 *****************************************************************************/ 696 697/* 698 * SCO sockets data input routine 699 */ 700 701static void 702ng_btsocket_sco_data_input(struct mbuf *m, hook_p hook) 703{ 704 ng_hci_scodata_pkt_t *hdr = NULL; 705 ng_btsocket_sco_pcb_t *pcb = NULL; 706 ng_btsocket_sco_rtentry_t *rt = NULL; 707 u_int16_t con_handle; 708 709 if (hook == NULL) { 710 NG_BTSOCKET_SCO_ALERT( 711"%s: Invalid source hook for SCO data packet\n", __func__); 712 goto drop; 713 } 714 715 rt = (ng_btsocket_sco_rtentry_t *) NG_HOOK_PRIVATE(hook); 716 if (rt == NULL) { 717 NG_BTSOCKET_SCO_ALERT( 718"%s: Could not find out source bdaddr for SCO data packet\n", __func__); 719 goto drop; 720 } 721 722 /* Make sure we can access header */ 723 if (m->m_pkthdr.len < sizeof(*hdr)) { 724 NG_BTSOCKET_SCO_ERR( 725"%s: SCO data packet too small, len=%d\n", __func__, m->m_pkthdr.len); 726 goto drop; 727 } 728 729 if (m->m_len < sizeof(*hdr)) { 730 m = m_pullup(m, sizeof(*hdr)); 731 if (m == NULL) 732 goto drop; 733 } 734 735 /* Strip SCO packet header and verify packet length */ 736 hdr = mtod(m, ng_hci_scodata_pkt_t *); 737 m_adj(m, sizeof(*hdr)); 738 739 if (hdr->length != m->m_pkthdr.len) { 740 NG_BTSOCKET_SCO_ERR( 741"%s: Bad SCO data packet length, len=%d, length=%d\n", 742 __func__, m->m_pkthdr.len, hdr->length); 743 goto drop; 744 } 745 746 /* 747 * Now process packet 748 */ 749 750 con_handle = NG_HCI_CON_HANDLE(le16toh(hdr->con_handle)); 751 752 NG_BTSOCKET_SCO_INFO( 753"%s: Received SCO data packet: src bdaddr=%x:%x:%x:%x:%x:%x, handle=%d, " \ 754"length=%d\n", __func__, 755 rt->src.b[5], rt->src.b[4], rt->src.b[3], 756 rt->src.b[2], rt->src.b[1], rt->src.b[0], 757 con_handle, hdr->length); 758 759 mtx_lock(&ng_btsocket_sco_sockets_mtx); 760 761 /* Find socket */ 762 pcb = ng_btsocket_sco_pcb_by_handle(&rt->src, con_handle); 763 if (pcb == NULL) { 764 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 765 goto drop; 766 } 767 768 /* pcb is locked */ 769 770 if (pcb->state != NG_BTSOCKET_SCO_OPEN) { 771 NG_BTSOCKET_SCO_ERR( 772"%s: No connected socket found, src bdaddr=%x:%x:%x:%x:%x:%x, state=%d\n", 773 __func__, 774 rt->src.b[5], rt->src.b[4], rt->src.b[3], 775 rt->src.b[2], rt->src.b[1], rt->src.b[0], 776 pcb->state); 777 778 mtx_unlock(&pcb->pcb_mtx); 779 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 780 goto drop; 781 } 782 783 /* Check if we have enough space in socket receive queue */ 784 if (m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) { 785 NG_BTSOCKET_SCO_ERR( 786"%s: Not enough space in socket receive queue. Dropping SCO data packet, " \ 787"src bdaddr=%x:%x:%x:%x:%x:%x, len=%d, space=%ld\n", 788 __func__, 789 rt->src.b[5], rt->src.b[4], rt->src.b[3], 790 rt->src.b[2], rt->src.b[1], rt->src.b[0], 791 m->m_pkthdr.len, 792 sbspace(&pcb->so->so_rcv)); 793 794 mtx_unlock(&pcb->pcb_mtx); 795 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 796 goto drop; 797 } 798 799 /* Append packet to the socket receive queue and wakeup */ 800 sbappendrecord(&pcb->so->so_rcv, m); 801 m = NULL; 802 803 sorwakeup(pcb->so); 804 805 mtx_unlock(&pcb->pcb_mtx); 806 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 807drop: 808 NG_FREE_M(m); /* checks for m != NULL */ 809} /* ng_btsocket_sco_data_input */ 810 811/* 812 * SCO sockets default message input routine 813 */ 814 815static void 816ng_btsocket_sco_default_msg_input(struct ng_mesg *msg, hook_p hook) 817{ 818 ng_btsocket_sco_rtentry_t *rt = NULL; 819 820 if (hook == NULL || NG_HOOK_NOT_VALID(hook)) 821 return; 822 823 rt = (ng_btsocket_sco_rtentry_t *) NG_HOOK_PRIVATE(hook); 824 825 switch (msg->header.cmd) { 826 case NGM_HCI_NODE_UP: { 827 ng_hci_node_up_ep *ep = NULL; 828 829 if (msg->header.arglen != sizeof(*ep)) 830 break; 831 832 ep = (ng_hci_node_up_ep *)(msg->data); 833 if (bcmp(&ep->bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 834 break; 835 836 if (rt == NULL) { 837 rt = malloc(sizeof(*rt), 838 M_NETGRAPH_BTSOCKET_SCO, M_NOWAIT|M_ZERO); 839 if (rt == NULL) 840 break; 841 842 NG_HOOK_SET_PRIVATE(hook, rt); 843 844 mtx_lock(&ng_btsocket_sco_rt_mtx); 845 846 LIST_INSERT_HEAD(&ng_btsocket_sco_rt, rt, next); 847 } else 848 mtx_lock(&ng_btsocket_sco_rt_mtx); 849 850 bcopy(&ep->bdaddr, &rt->src, sizeof(rt->src)); 851 rt->pkt_size = (ep->pkt_size == 0)? 60 : ep->pkt_size; 852 rt->num_pkts = ep->num_pkts; 853 rt->hook = hook; 854 855 mtx_unlock(&ng_btsocket_sco_rt_mtx); 856 857 NG_BTSOCKET_SCO_INFO( 858"%s: Updating hook \"%s\", src bdaddr=%x:%x:%x:%x:%x:%x, pkt_size=%d, " \ 859"num_pkts=%d\n", __func__, NG_HOOK_NAME(hook), 860 rt->src.b[5], rt->src.b[4], rt->src.b[3], 861 rt->src.b[2], rt->src.b[1], rt->src.b[0], 862 rt->pkt_size, rt->num_pkts); 863 } break; 864 865 case NGM_HCI_SYNC_CON_QUEUE: { 866 ng_hci_sync_con_queue_ep *ep = NULL; 867 ng_btsocket_sco_pcb_t *pcb = NULL; 868 869 if (rt == NULL || msg->header.arglen != sizeof(*ep)) 870 break; 871 872 ep = (ng_hci_sync_con_queue_ep *)(msg->data); 873 874 rt->pending -= ep->completed; 875 if (rt->pending < 0) { 876 NG_BTSOCKET_SCO_WARN( 877"%s: Pending packet counter is out of sync! bdaddr=%x:%x:%x:%x:%x:%x, " \ 878"handle=%d, pending=%d, completed=%d\n", 879 __func__, 880 rt->src.b[5], rt->src.b[4], rt->src.b[3], 881 rt->src.b[2], rt->src.b[1], rt->src.b[0], 882 ep->con_handle, rt->pending, 883 ep->completed); 884 885 rt->pending = 0; 886 } 887 888 mtx_lock(&ng_btsocket_sco_sockets_mtx); 889 890 /* Find socket */ 891 pcb = ng_btsocket_sco_pcb_by_handle(&rt->src, ep->con_handle); 892 if (pcb == NULL) { 893 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 894 break; 895 } 896 897 /* pcb is locked */ 898 899 /* Check state */ 900 if (pcb->state == NG_BTSOCKET_SCO_OPEN) { 901 /* Remove timeout */ 902 ng_btsocket_sco_untimeout(pcb); 903 904 /* Drop completed packets from the send queue */ 905 for (; ep->completed > 0; ep->completed --) 906 sbdroprecord(&pcb->so->so_snd); 907 908 /* Send more if we have any */ 909 if (pcb->so->so_snd.sb_cc > 0) 910 if (ng_btsocket_sco_send2(pcb) == 0) 911 ng_btsocket_sco_timeout(pcb); 912 913 /* Wake up writers */ 914 sowwakeup(pcb->so); 915 } 916 917 mtx_unlock(&pcb->pcb_mtx); 918 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 919 } break; 920 921 default: 922 NG_BTSOCKET_SCO_WARN( 923"%s: Unknown message, cmd=%d\n", __func__, msg->header.cmd); 924 break; 925 } 926 927 NG_FREE_MSG(msg); /* Checks for msg != NULL */ 928} /* ng_btsocket_sco_default_msg_input */ 929 930/* 931 * SCO sockets LP message input routine 932 */ 933 934static void 935ng_btsocket_sco_lp_msg_input(struct ng_mesg *msg, hook_p hook) 936{ 937 ng_btsocket_sco_rtentry_p rt = NULL; 938 939 if (hook == NULL) { 940 NG_BTSOCKET_SCO_ALERT( 941"%s: Invalid source hook for LP message\n", __func__); 942 goto drop; 943 } 944 945 rt = (ng_btsocket_sco_rtentry_p) NG_HOOK_PRIVATE(hook); 946 if (rt == NULL) { 947 NG_BTSOCKET_SCO_ALERT( 948"%s: Could not find out source bdaddr for LP message\n", __func__); 949 goto drop; 950 } 951 952 switch (msg->header.cmd) { 953 case NGM_HCI_LP_CON_CFM: /* Connection Confirmation Event */ 954 ng_btsocket_sco_process_lp_con_cfm(msg, rt); 955 break; 956 957 case NGM_HCI_LP_CON_IND: /* Connection Indication Event */ 958 ng_btsocket_sco_process_lp_con_ind(msg, rt); 959 break; 960 961 case NGM_HCI_LP_DISCON_IND: /* Disconnection Indication Event */ 962 ng_btsocket_sco_process_lp_discon_ind(msg, rt); 963 break; 964 965 /* XXX FIXME add other LP messages */ 966 967 default: 968 NG_BTSOCKET_SCO_WARN( 969"%s: Unknown LP message, cmd=%d\n", __func__, msg->header.cmd); 970 break; 971 } 972drop: 973 NG_FREE_MSG(msg); 974} /* ng_btsocket_sco_lp_msg_input */ 975 976/* 977 * SCO sockets input routine 978 */ 979 980static void 981ng_btsocket_sco_input(void *context, int pending) 982{ 983 item_p item = NULL; 984 hook_p hook = NULL; 985 986 for (;;) { 987 mtx_lock(&ng_btsocket_sco_queue_mtx); 988 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_sco_queue, item); 989 mtx_unlock(&ng_btsocket_sco_queue_mtx); 990 991 if (item == NULL) 992 break; 993 994 NGI_GET_HOOK(item, hook); 995 if (hook != NULL && NG_HOOK_NOT_VALID(hook)) 996 goto drop; 997 998 switch(item->el_flags & NGQF_TYPE) { 999 case NGQF_DATA: { 1000 struct mbuf *m = NULL; 1001 1002 NGI_GET_M(item, m); 1003 ng_btsocket_sco_data_input(m, hook); 1004 } break; 1005 1006 case NGQF_MESG: { 1007 struct ng_mesg *msg = NULL; 1008 1009 NGI_GET_MSG(item, msg); 1010 1011 switch (msg->header.cmd) { 1012 case NGM_HCI_LP_CON_CFM: 1013 case NGM_HCI_LP_CON_IND: 1014 case NGM_HCI_LP_DISCON_IND: 1015 /* XXX FIXME add other LP messages */ 1016 ng_btsocket_sco_lp_msg_input(msg, hook); 1017 break; 1018 1019 default: 1020 ng_btsocket_sco_default_msg_input(msg, hook); 1021 break; 1022 } 1023 } break; 1024 1025 default: 1026 KASSERT(0, 1027("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 1028 break; 1029 } 1030drop: 1031 if (hook != NULL) 1032 NG_HOOK_UNREF(hook); 1033 1034 NG_FREE_ITEM(item); 1035 } 1036} /* ng_btsocket_sco_input */ 1037 1038/* 1039 * Route cleanup task. Gets scheduled when hook is disconnected. Here we 1040 * will find all sockets that use "invalid" hook and disconnect them. 1041 */ 1042 1043static void 1044ng_btsocket_sco_rtclean(void *context, int pending) 1045{ 1046 ng_btsocket_sco_pcb_p pcb = NULL, pcb_next = NULL; 1047 ng_btsocket_sco_rtentry_p rt = NULL; 1048 1049 /* 1050 * First disconnect all sockets that use "invalid" hook 1051 */ 1052 1053 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1054 1055 for(pcb = LIST_FIRST(&ng_btsocket_sco_sockets); pcb != NULL; ) { 1056 mtx_lock(&pcb->pcb_mtx); 1057 pcb_next = LIST_NEXT(pcb, next); 1058 1059 if (pcb->rt != NULL && 1060 pcb->rt->hook != NULL && NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1061 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 1062 ng_btsocket_sco_untimeout(pcb); 1063 1064 pcb->rt = NULL; 1065 pcb->so->so_error = ENETDOWN; 1066 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1067 soisdisconnected(pcb->so); 1068 } 1069 1070 mtx_unlock(&pcb->pcb_mtx); 1071 pcb = pcb_next; 1072 } 1073 1074 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1075 1076 /* 1077 * Now cleanup routing table 1078 */ 1079 1080 mtx_lock(&ng_btsocket_sco_rt_mtx); 1081 1082 for (rt = LIST_FIRST(&ng_btsocket_sco_rt); rt != NULL; ) { 1083 ng_btsocket_sco_rtentry_p rt_next = LIST_NEXT(rt, next); 1084 1085 if (rt->hook != NULL && NG_HOOK_NOT_VALID(rt->hook)) { 1086 LIST_REMOVE(rt, next); 1087 1088 NG_HOOK_SET_PRIVATE(rt->hook, NULL); 1089 NG_HOOK_UNREF(rt->hook); /* Remove extra reference */ 1090 1091 bzero(rt, sizeof(*rt)); 1092 free(rt, M_NETGRAPH_BTSOCKET_SCO); 1093 } 1094 1095 rt = rt_next; 1096 } 1097 1098 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1099} /* ng_btsocket_sco_rtclean */ 1100 1101/* 1102 * Initialize everything 1103 */ 1104 1105void 1106ng_btsocket_sco_init(void) 1107{ 1108 int error = 0; 1109 1110 ng_btsocket_sco_node = NULL; 1111 ng_btsocket_sco_debug_level = NG_BTSOCKET_WARN_LEVEL; 1112 1113 /* Register Netgraph node type */ 1114 error = ng_newtype(&typestruct); 1115 if (error != 0) { 1116 NG_BTSOCKET_SCO_ALERT( 1117"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 1118 1119 return; 1120 } 1121 1122 /* Create Netgrapg node */ 1123 error = ng_make_node_common(&typestruct, &ng_btsocket_sco_node); 1124 if (error != 0) { 1125 NG_BTSOCKET_SCO_ALERT( 1126"%s: Could not create Netgraph node, error=%d\n", __func__, error); 1127 1128 ng_btsocket_sco_node = NULL; 1129 1130 return; 1131 } 1132 1133 error = ng_name_node(ng_btsocket_sco_node, NG_BTSOCKET_SCO_NODE_TYPE); 1134 if (error != 0) { 1135 NG_BTSOCKET_SCO_ALERT( 1136"%s: Could not name Netgraph node, error=%d\n", __func__, error); 1137 1138 NG_NODE_UNREF(ng_btsocket_sco_node); 1139 ng_btsocket_sco_node = NULL; 1140 1141 return; 1142 } 1143 1144 /* Create input queue */ 1145 NG_BT_ITEMQ_INIT(&ng_btsocket_sco_queue, 300); 1146 mtx_init(&ng_btsocket_sco_queue_mtx, 1147 "btsocks_sco_queue_mtx", NULL, MTX_DEF); 1148 TASK_INIT(&ng_btsocket_sco_queue_task, 0, 1149 ng_btsocket_sco_input, NULL); 1150 1151 /* Create list of sockets */ 1152 LIST_INIT(&ng_btsocket_sco_sockets); 1153 mtx_init(&ng_btsocket_sco_sockets_mtx, 1154 "btsocks_sco_sockets_mtx", NULL, MTX_DEF); 1155 1156 /* Routing table */ 1157 LIST_INIT(&ng_btsocket_sco_rt); 1158 mtx_init(&ng_btsocket_sco_rt_mtx, 1159 "btsocks_sco_rt_mtx", NULL, MTX_DEF); 1160 TASK_INIT(&ng_btsocket_sco_rt_task, 0, 1161 ng_btsocket_sco_rtclean, NULL); 1162} /* ng_btsocket_sco_init */ 1163 1164/* 1165 * Abort connection on socket 1166 */ 1167 1168void 1169ng_btsocket_sco_abort(struct socket *so) 1170{ 1171 so->so_error = ECONNABORTED; 1172 1173 (void) ng_btsocket_sco_disconnect(so); 1174} /* ng_btsocket_sco_abort */ 1175 1176void 1177ng_btsocket_sco_close(struct socket *so) 1178{ 1179 (void) ng_btsocket_sco_disconnect(so); 1180} /* ng_btsocket_sco_close */ 1181 1182/* 1183 * Accept connection on socket. Nothing to do here, socket must be connected 1184 * and ready, so just return peer address and be done with it. 1185 */ 1186 1187int 1188ng_btsocket_sco_accept(struct socket *so, struct sockaddr **nam) 1189{ 1190 if (ng_btsocket_sco_node == NULL) 1191 return (EINVAL); 1192 1193 return (ng_btsocket_sco_peeraddr(so, nam)); 1194} /* ng_btsocket_sco_accept */ 1195 1196/* 1197 * Create and attach new socket 1198 */ 1199 1200int 1201ng_btsocket_sco_attach(struct socket *so, int proto, struct thread *td) 1202{ 1203 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1204 int error; 1205 1206 /* Check socket and protocol */ 1207 if (ng_btsocket_sco_node == NULL) 1208 return (EPROTONOSUPPORT); 1209 if (so->so_type != SOCK_SEQPACKET) 1210 return (ESOCKTNOSUPPORT); 1211 1212#if 0 /* XXX sonewconn() calls "pru_attach" with proto == 0 */ 1213 if (proto != 0) 1214 if (proto != BLUETOOTH_PROTO_SCO) 1215 return (EPROTONOSUPPORT); 1216#endif /* XXX */ 1217 1218 if (pcb != NULL) 1219 return (EISCONN); 1220 1221 /* Reserve send and receive space if it is not reserved yet */ 1222 if ((so->so_snd.sb_hiwat == 0) || (so->so_rcv.sb_hiwat == 0)) { 1223 error = soreserve(so, NG_BTSOCKET_SCO_SENDSPACE, 1224 NG_BTSOCKET_SCO_RECVSPACE); 1225 if (error != 0) 1226 return (error); 1227 } 1228 1229 /* Allocate the PCB */ 1230 pcb = malloc(sizeof(*pcb), 1231 M_NETGRAPH_BTSOCKET_SCO, M_NOWAIT | M_ZERO); 1232 if (pcb == NULL) 1233 return (ENOMEM); 1234 1235 /* Link the PCB and the socket */ 1236 so->so_pcb = (caddr_t) pcb; 1237 pcb->so = so; 1238 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1239 1240 callout_init(&pcb->timo, 1); 1241 1242 /* 1243 * Mark PCB mutex as DUPOK to prevent "duplicated lock of 1244 * the same type" message. When accepting new SCO connection 1245 * ng_btsocket_sco_process_lp_con_ind() holds both PCB mutexes 1246 * for "old" (accepting) PCB and "new" (created) PCB. 1247 */ 1248 1249 mtx_init(&pcb->pcb_mtx, "btsocks_sco_pcb_mtx", NULL, 1250 MTX_DEF|MTX_DUPOK); 1251 1252 /* 1253 * Add the PCB to the list 1254 * 1255 * XXX FIXME VERY IMPORTANT! 1256 * 1257 * This is totally FUBAR. We could get here in two cases: 1258 * 1259 * 1) When user calls socket() 1260 * 2) When we need to accept new incomming connection and call 1261 * sonewconn() 1262 * 1263 * In the first case we must aquire ng_btsocket_sco_sockets_mtx. 1264 * In the second case we hold ng_btsocket_sco_sockets_mtx already. 1265 * So we now need to distinguish between these cases. From reading 1266 * /sys/kern/uipc_socket2.c we can find out that sonewconn() calls 1267 * pru_attach with proto == 0 and td == NULL. For now use this fact 1268 * to figure out if we were called from socket() or from sonewconn(). 1269 */ 1270 1271 if (td != NULL) 1272 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1273 else 1274 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1275 1276 LIST_INSERT_HEAD(&ng_btsocket_sco_sockets, pcb, next); 1277 1278 if (td != NULL) 1279 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1280 1281 return (0); 1282} /* ng_btsocket_sco_attach */ 1283 1284/* 1285 * Bind socket 1286 */ 1287 1288int 1289ng_btsocket_sco_bind(struct socket *so, struct sockaddr *nam, 1290 struct thread *td) 1291{ 1292 ng_btsocket_sco_pcb_t *pcb = NULL; 1293 struct sockaddr_sco *sa = (struct sockaddr_sco *) nam; 1294 1295 if (ng_btsocket_sco_node == NULL) 1296 return (EINVAL); 1297 1298 /* Verify address */ 1299 if (sa == NULL) 1300 return (EINVAL); 1301 if (sa->sco_family != AF_BLUETOOTH) 1302 return (EAFNOSUPPORT); 1303 if (sa->sco_len != sizeof(*sa)) 1304 return (EINVAL); 1305 1306 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1307 1308 /* 1309 * Check if other socket has this address already (look for exact 1310 * match in bdaddr) and assign socket address if it's available. 1311 */ 1312 1313 if (bcmp(&sa->sco_bdaddr, NG_HCI_BDADDR_ANY, sizeof(sa->sco_bdaddr)) != 0) { 1314 LIST_FOREACH(pcb, &ng_btsocket_sco_sockets, next) { 1315 mtx_lock(&pcb->pcb_mtx); 1316 1317 if (bcmp(&pcb->src, &sa->sco_bdaddr, sizeof(bdaddr_t)) == 0) { 1318 mtx_unlock(&pcb->pcb_mtx); 1319 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1320 1321 return (EADDRINUSE); 1322 } 1323 1324 mtx_unlock(&pcb->pcb_mtx); 1325 } 1326 1327 } 1328 1329 pcb = so2sco_pcb(so); 1330 if (pcb == NULL) { 1331 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1332 return (EINVAL); 1333 } 1334 1335 mtx_lock(&pcb->pcb_mtx); 1336 bcopy(&sa->sco_bdaddr, &pcb->src, sizeof(pcb->src)); 1337 mtx_unlock(&pcb->pcb_mtx); 1338 1339 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1340 1341 return (0); 1342} /* ng_btsocket_sco_bind */ 1343 1344/* 1345 * Connect socket 1346 */ 1347 1348int 1349ng_btsocket_sco_connect(struct socket *so, struct sockaddr *nam, 1350 struct thread *td) 1351{ 1352 ng_btsocket_sco_pcb_t *pcb = so2sco_pcb(so); 1353 struct sockaddr_sco *sa = (struct sockaddr_sco *) nam; 1354 ng_btsocket_sco_rtentry_t *rt = NULL; 1355 int have_src, error = 0; 1356 1357 /* Check socket */ 1358 if (pcb == NULL) 1359 return (EINVAL); 1360 if (ng_btsocket_sco_node == NULL) 1361 return (EINVAL); 1362 1363 /* Verify address */ 1364 if (sa == NULL) 1365 return (EINVAL); 1366 if (sa->sco_family != AF_BLUETOOTH) 1367 return (EAFNOSUPPORT); 1368 if (sa->sco_len != sizeof(*sa)) 1369 return (EINVAL); 1370 if (bcmp(&sa->sco_bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 1371 return (EDESTADDRREQ); 1372 1373 /* 1374 * Routing. Socket should be bound to some source address. The source 1375 * address can be ANY. Destination address must be set and it must not 1376 * be ANY. If source address is ANY then find first rtentry that has 1377 * src != dst. 1378 */ 1379 1380 mtx_lock(&ng_btsocket_sco_rt_mtx); 1381 mtx_lock(&pcb->pcb_mtx); 1382 1383 if (pcb->state == NG_BTSOCKET_SCO_CONNECTING) { 1384 mtx_unlock(&pcb->pcb_mtx); 1385 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1386 1387 return (EINPROGRESS); 1388 } 1389 1390 if (bcmp(&sa->sco_bdaddr, &pcb->src, sizeof(pcb->src)) == 0) { 1391 mtx_unlock(&pcb->pcb_mtx); 1392 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1393 1394 return (EINVAL); 1395 } 1396 1397 /* Send destination address and PSM */ 1398 bcopy(&sa->sco_bdaddr, &pcb->dst, sizeof(pcb->dst)); 1399 1400 pcb->rt = NULL; 1401 have_src = bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)); 1402 1403 LIST_FOREACH(rt, &ng_btsocket_sco_rt, next) { 1404 if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 1405 continue; 1406 1407 /* Match src and dst */ 1408 if (have_src) { 1409 if (bcmp(&pcb->src, &rt->src, sizeof(rt->src)) == 0) 1410 break; 1411 } else { 1412 if (bcmp(&pcb->dst, &rt->src, sizeof(rt->src)) != 0) 1413 break; 1414 } 1415 } 1416 1417 if (rt != NULL) { 1418 pcb->rt = rt; 1419 1420 if (!have_src) 1421 bcopy(&rt->src, &pcb->src, sizeof(pcb->src)); 1422 } else 1423 error = EHOSTUNREACH; 1424 1425 /* 1426 * Send LP_Connect request 1427 */ 1428 1429 if (error == 0) { 1430 error = ng_btsocket_sco_send_lp_con_req(pcb); 1431 if (error == 0) { 1432 pcb->flags |= NG_BTSOCKET_SCO_CLIENT; 1433 pcb->state = NG_BTSOCKET_SCO_CONNECTING; 1434 soisconnecting(pcb->so); 1435 1436 ng_btsocket_sco_timeout(pcb); 1437 } 1438 } 1439 1440 mtx_unlock(&pcb->pcb_mtx); 1441 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1442 1443 return (error); 1444} /* ng_btsocket_sco_connect */ 1445 1446/* 1447 * Process ioctl's calls on socket 1448 */ 1449 1450int 1451ng_btsocket_sco_control(struct socket *so, u_long cmd, caddr_t data, 1452 struct ifnet *ifp, struct thread *td) 1453{ 1454 return (EINVAL); 1455} /* ng_btsocket_sco_control */ 1456 1457/* 1458 * Process getsockopt/setsockopt system calls 1459 */ 1460 1461int 1462ng_btsocket_sco_ctloutput(struct socket *so, struct sockopt *sopt) 1463{ 1464 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1465 int error, tmp; 1466 1467 if (ng_btsocket_sco_node == NULL) 1468 return (EINVAL); 1469 if (pcb == NULL) 1470 return (EINVAL); 1471 1472 if (sopt->sopt_level != SOL_SCO) 1473 return (0); 1474 1475 mtx_lock(&pcb->pcb_mtx); 1476 1477 switch (sopt->sopt_dir) { 1478 case SOPT_GET: 1479 if (pcb->state != NG_BTSOCKET_SCO_OPEN) { 1480 error = ENOTCONN; 1481 break; 1482 } 1483 1484 switch (sopt->sopt_name) { 1485 case SO_SCO_MTU: 1486 tmp = pcb->rt->pkt_size; 1487 error = sooptcopyout(sopt, &tmp, sizeof(tmp)); 1488 break; 1489 1490 case SO_SCO_CONNINFO: 1491 tmp = pcb->con_handle; 1492 error = sooptcopyout(sopt, &tmp, sizeof(tmp)); 1493 break; 1494 1495 default: 1496 error = EINVAL; 1497 break; 1498 } 1499 break; 1500 1501 case SOPT_SET: 1502 error = ENOPROTOOPT; 1503 break; 1504 1505 default: 1506 error = EINVAL; 1507 break; 1508 } 1509 1510 mtx_unlock(&pcb->pcb_mtx); 1511 1512 return (error); 1513} /* ng_btsocket_sco_ctloutput */ 1514 1515/* 1516 * Detach and destroy socket 1517 */ 1518 1519void 1520ng_btsocket_sco_detach(struct socket *so) 1521{ 1522 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1523 1524 KASSERT(pcb != NULL, ("ng_btsocket_sco_detach: pcb == NULL")); 1525 1526 if (ng_btsocket_sco_node == NULL) 1527 return; 1528 1529 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1530 mtx_lock(&pcb->pcb_mtx); 1531 1532 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 1533 ng_btsocket_sco_untimeout(pcb); 1534 1535 if (pcb->state == NG_BTSOCKET_SCO_OPEN) 1536 ng_btsocket_sco_send_lp_discon_req(pcb); 1537 1538 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1539 1540 LIST_REMOVE(pcb, next); 1541 1542 mtx_unlock(&pcb->pcb_mtx); 1543 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1544 1545 mtx_destroy(&pcb->pcb_mtx); 1546 bzero(pcb, sizeof(*pcb)); 1547 free(pcb, M_NETGRAPH_BTSOCKET_SCO); 1548 1549 soisdisconnected(so); 1550 so->so_pcb = NULL; 1551} /* ng_btsocket_sco_detach */ 1552 1553/* 1554 * Disconnect socket 1555 */ 1556 1557int 1558ng_btsocket_sco_disconnect(struct socket *so) 1559{ 1560 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1561 1562 if (pcb == NULL) 1563 return (EINVAL); 1564 if (ng_btsocket_sco_node == NULL) 1565 return (EINVAL); 1566 1567 mtx_lock(&pcb->pcb_mtx); 1568 1569 if (pcb->state == NG_BTSOCKET_SCO_DISCONNECTING) { 1570 mtx_unlock(&pcb->pcb_mtx); 1571 1572 return (EINPROGRESS); 1573 } 1574 1575 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 1576 ng_btsocket_sco_untimeout(pcb); 1577 1578 if (pcb->state == NG_BTSOCKET_SCO_OPEN) { 1579 ng_btsocket_sco_send_lp_discon_req(pcb); 1580 1581 pcb->state = NG_BTSOCKET_SCO_DISCONNECTING; 1582 soisdisconnecting(so); 1583 1584 ng_btsocket_sco_timeout(pcb); 1585 } else { 1586 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1587 soisdisconnected(so); 1588 } 1589 1590 mtx_unlock(&pcb->pcb_mtx); 1591 1592 return (0); 1593} /* ng_btsocket_sco_disconnect */ 1594 1595/* 1596 * Listen on socket 1597 */ 1598 1599int 1600ng_btsocket_sco_listen(struct socket *so, int backlog, struct thread *td) 1601{ 1602 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1603 int error; 1604 1605 if (pcb == NULL) 1606 return (EINVAL); 1607 if (ng_btsocket_sco_node == NULL) 1608 return (EINVAL); 1609 1610 SOCK_LOCK(so); 1611 mtx_lock(&pcb->pcb_mtx); 1612 1613 error = solisten_proto_check(so); 1614 if (error != 0) 1615 goto out; 1616#if 0 1617 if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) { 1618 error = EDESTADDRREQ; 1619 goto out; 1620 } 1621#endif 1622 solisten_proto(so, backlog); 1623out: 1624 mtx_unlock(&pcb->pcb_mtx); 1625 SOCK_UNLOCK(so); 1626 1627 return (error); 1628} /* ng_btsocket_listen */ 1629 1630/* 1631 * Get peer address 1632 */ 1633 1634int 1635ng_btsocket_sco_peeraddr(struct socket *so, struct sockaddr **nam) 1636{ 1637 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1638 struct sockaddr_sco sa; 1639 1640 if (pcb == NULL) 1641 return (EINVAL); 1642 if (ng_btsocket_sco_node == NULL) 1643 return (EINVAL); 1644 1645 mtx_lock(&pcb->pcb_mtx); 1646 bcopy(&pcb->dst, &sa.sco_bdaddr, sizeof(sa.sco_bdaddr)); 1647 mtx_unlock(&pcb->pcb_mtx); 1648 1649 sa.sco_len = sizeof(sa); 1650 sa.sco_family = AF_BLUETOOTH; 1651 1652 *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 1653 1654 return ((*nam == NULL)? ENOMEM : 0); 1655} /* ng_btsocket_sco_peeraddr */ 1656 1657/* 1658 * Send data to socket 1659 */ 1660 1661int 1662ng_btsocket_sco_send(struct socket *so, int flags, struct mbuf *m, 1663 struct sockaddr *nam, struct mbuf *control, struct thread *td) 1664{ 1665 ng_btsocket_sco_pcb_t *pcb = so2sco_pcb(so); 1666 int error = 0; 1667 1668 if (ng_btsocket_sco_node == NULL) { 1669 error = ENETDOWN; 1670 goto drop; 1671 } 1672 1673 /* Check socket and input */ 1674 if (pcb == NULL || m == NULL || control != NULL) { 1675 error = EINVAL; 1676 goto drop; 1677 } 1678 1679 mtx_lock(&pcb->pcb_mtx); 1680 1681 /* Make sure socket is connected */ 1682 if (pcb->state != NG_BTSOCKET_SCO_OPEN) { 1683 mtx_unlock(&pcb->pcb_mtx); 1684 error = ENOTCONN; 1685 goto drop; 1686 } 1687 1688 /* Check route */ 1689 if (pcb->rt == NULL || 1690 pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1691 mtx_unlock(&pcb->pcb_mtx); 1692 error = ENETDOWN; 1693 goto drop; 1694 } 1695 1696 /* Check packet size */ 1697 if (m->m_pkthdr.len > pcb->rt->pkt_size) { 1698 NG_BTSOCKET_SCO_ERR( 1699"%s: Packet too big, len=%d, pkt_size=%d\n", 1700 __func__, m->m_pkthdr.len, pcb->rt->pkt_size); 1701 1702 mtx_unlock(&pcb->pcb_mtx); 1703 error = EMSGSIZE; 1704 goto drop; 1705 } 1706 1707 /* 1708 * First put packet on socket send queue. Then check if we have 1709 * pending timeout. If we do not have timeout then we must send 1710 * packet and schedule timeout. Otherwise do nothing and wait for 1711 * NGM_HCI_SYNC_CON_QUEUE message. 1712 */ 1713 1714 sbappendrecord(&pcb->so->so_snd, m); 1715 m = NULL; 1716 1717 if (!(pcb->flags & NG_BTSOCKET_SCO_TIMO)) { 1718 error = ng_btsocket_sco_send2(pcb); 1719 if (error == 0) 1720 ng_btsocket_sco_timeout(pcb); 1721 else 1722 sbdroprecord(&pcb->so->so_snd); /* XXX */ 1723 } 1724 1725 mtx_unlock(&pcb->pcb_mtx); 1726drop: 1727 NG_FREE_M(m); /* checks for != NULL */ 1728 NG_FREE_M(control); 1729 1730 return (error); 1731} /* ng_btsocket_sco_send */ 1732 1733/* 1734 * Send first packet in the socket queue to the SCO layer 1735 */ 1736 1737static int 1738ng_btsocket_sco_send2(ng_btsocket_sco_pcb_p pcb) 1739{ 1740 struct mbuf *m = NULL; 1741 ng_hci_scodata_pkt_t *hdr = NULL; 1742 int error = 0; 1743 1744 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1745 1746 while (pcb->rt->pending < pcb->rt->num_pkts && 1747 pcb->so->so_snd.sb_cc > 0) { 1748 /* Get a copy of the first packet on send queue */ 1749 m = m_dup(pcb->so->so_snd.sb_mb, M_DONTWAIT); 1750 if (m == NULL) { 1751 error = ENOBUFS; 1752 break; 1753 } 1754 1755 /* Create SCO packet header */ 1756 M_PREPEND(m, sizeof(*hdr), M_DONTWAIT); 1757 if (m != NULL) 1758 if (m->m_len < sizeof(*hdr)) 1759 m = m_pullup(m, sizeof(*hdr)); 1760 1761 if (m == NULL) { 1762 error = ENOBUFS; 1763 break; 1764 } 1765 1766 /* Fill in the header */ 1767 hdr = mtod(m, ng_hci_scodata_pkt_t *); 1768 hdr->type = NG_HCI_SCO_DATA_PKT; 1769 hdr->con_handle = htole16(NG_HCI_MK_CON_HANDLE(pcb->con_handle, 0, 0)); 1770 hdr->length = m->m_pkthdr.len - sizeof(*hdr); 1771 1772 /* Send packet */ 1773 NG_SEND_DATA_ONLY(error, pcb->rt->hook, m); 1774 if (error != 0) 1775 break; 1776 1777 pcb->rt->pending ++; 1778 } 1779 1780 return ((pcb->rt->pending > 0)? 0 : error); 1781} /* ng_btsocket_sco_send2 */ 1782 1783/* 1784 * Get socket address 1785 */ 1786 1787int 1788ng_btsocket_sco_sockaddr(struct socket *so, struct sockaddr **nam) 1789{ 1790 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1791 struct sockaddr_sco sa; 1792 1793 if (pcb == NULL) 1794 return (EINVAL); 1795 if (ng_btsocket_sco_node == NULL) 1796 return (EINVAL); 1797 1798 mtx_lock(&pcb->pcb_mtx); 1799 bcopy(&pcb->src, &sa.sco_bdaddr, sizeof(sa.sco_bdaddr)); 1800 mtx_unlock(&pcb->pcb_mtx); 1801 1802 sa.sco_len = sizeof(sa); 1803 sa.sco_family = AF_BLUETOOTH; 1804 1805 *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 1806 1807 return ((*nam == NULL)? ENOMEM : 0); 1808} /* ng_btsocket_sco_sockaddr */ 1809 1810/***************************************************************************** 1811 ***************************************************************************** 1812 ** Misc. functions 1813 ***************************************************************************** 1814 *****************************************************************************/ 1815 1816/* 1817 * Look for the socket that listens on given bdaddr. 1818 * Returns exact or close match (if any). 1819 * Caller must hold ng_btsocket_sco_sockets_mtx. 1820 * Returns with locked pcb. 1821 */ 1822 1823static ng_btsocket_sco_pcb_p 1824ng_btsocket_sco_pcb_by_addr(bdaddr_p bdaddr) 1825{ 1826 ng_btsocket_sco_pcb_p p = NULL, p1 = NULL; 1827 1828 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1829 1830 LIST_FOREACH(p, &ng_btsocket_sco_sockets, next) { 1831 mtx_lock(&p->pcb_mtx); 1832 1833 if (p->so == NULL || !(p->so->so_options & SO_ACCEPTCONN)) { 1834 mtx_unlock(&p->pcb_mtx); 1835 continue; 1836 } 1837 1838 if (bcmp(&p->src, bdaddr, sizeof(p->src)) == 0) 1839 return (p); /* return with locked pcb */ 1840 1841 if (bcmp(&p->src, NG_HCI_BDADDR_ANY, sizeof(p->src)) == 0) 1842 p1 = p; 1843 1844 mtx_unlock(&p->pcb_mtx); 1845 } 1846 1847 if (p1 != NULL) 1848 mtx_lock(&p1->pcb_mtx); 1849 1850 return (p1); 1851} /* ng_btsocket_sco_pcb_by_addr */ 1852 1853/* 1854 * Look for the socket that assigned to given source address and handle. 1855 * Caller must hold ng_btsocket_sco_sockets_mtx. 1856 * Returns with locked pcb. 1857 */ 1858 1859static ng_btsocket_sco_pcb_p 1860ng_btsocket_sco_pcb_by_handle(bdaddr_p src, int con_handle) 1861{ 1862 ng_btsocket_sco_pcb_p p = NULL; 1863 1864 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1865 1866 LIST_FOREACH(p, &ng_btsocket_sco_sockets, next) { 1867 mtx_lock(&p->pcb_mtx); 1868 1869 if (p->con_handle == con_handle && 1870 bcmp(src, &p->src, sizeof(p->src)) == 0) 1871 return (p); /* return with locked pcb */ 1872 1873 mtx_unlock(&p->pcb_mtx); 1874 } 1875 1876 return (NULL); 1877} /* ng_btsocket_sco_pcb_by_handle */ 1878 1879/* 1880 * Look for the socket in CONNECTING state with given source and destination 1881 * addresses. Caller must hold ng_btsocket_sco_sockets_mtx. 1882 * Returns with locked pcb. 1883 */ 1884 1885static ng_btsocket_sco_pcb_p 1886ng_btsocket_sco_pcb_by_addrs(bdaddr_p src, bdaddr_p dst) 1887{ 1888 ng_btsocket_sco_pcb_p p = NULL; 1889 1890 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1891 1892 LIST_FOREACH(p, &ng_btsocket_sco_sockets, next) { 1893 mtx_lock(&p->pcb_mtx); 1894 1895 if (p->state == NG_BTSOCKET_SCO_CONNECTING && 1896 bcmp(src, &p->src, sizeof(p->src)) == 0 && 1897 bcmp(dst, &p->dst, sizeof(p->dst)) == 0) 1898 return (p); /* return with locked pcb */ 1899 1900 mtx_unlock(&p->pcb_mtx); 1901 } 1902 1903 return (NULL); 1904} /* ng_btsocket_sco_pcb_by_addrs */ 1905 1906/* 1907 * Set timeout on socket 1908 */ 1909 1910static void 1911ng_btsocket_sco_timeout(ng_btsocket_sco_pcb_p pcb) 1912{ 1913 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1914 1915 if (!(pcb->flags & NG_BTSOCKET_SCO_TIMO)) { 1916 pcb->flags |= NG_BTSOCKET_SCO_TIMO; 1917 callout_reset(&pcb->timo, bluetooth_sco_rtx_timeout(), 1918 ng_btsocket_sco_process_timeout, pcb); 1919 } else 1920 KASSERT(0, 1921("%s: Duplicated socket timeout?!\n", __func__)); 1922} /* ng_btsocket_sco_timeout */ 1923 1924/* 1925 * Unset timeout on socket 1926 */ 1927 1928static void 1929ng_btsocket_sco_untimeout(ng_btsocket_sco_pcb_p pcb) 1930{ 1931 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1932 1933 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) { 1934 callout_stop(&pcb->timo); 1935 pcb->flags &= ~NG_BTSOCKET_SCO_TIMO; 1936 } else 1937 KASSERT(0, 1938("%s: No socket timeout?!\n", __func__)); 1939} /* ng_btsocket_sco_untimeout */ 1940 1941/* 1942 * Process timeout on socket 1943 */ 1944 1945static void 1946ng_btsocket_sco_process_timeout(void *xpcb) 1947{ 1948 ng_btsocket_sco_pcb_p pcb = (ng_btsocket_sco_pcb_p) xpcb; 1949 1950 mtx_lock(&pcb->pcb_mtx); 1951 1952 pcb->flags &= ~NG_BTSOCKET_SCO_TIMO; 1953 pcb->so->so_error = ETIMEDOUT; 1954 1955 switch (pcb->state) { 1956 case NG_BTSOCKET_SCO_CONNECTING: 1957 /* Connect timeout - close the socket */ 1958 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1959 soisdisconnected(pcb->so); 1960 break; 1961 1962 case NG_BTSOCKET_SCO_OPEN: 1963 /* Send timeout - did not get NGM_HCI_SYNC_CON_QUEUE */ 1964 sbdroprecord(&pcb->so->so_snd); 1965 sowwakeup(pcb->so); 1966 /* XXX FIXME what to do with pcb->rt->pending??? */ 1967 break; 1968 1969 case NG_BTSOCKET_SCO_DISCONNECTING: 1970 /* Disconnect timeout - disconnect the socket anyway */ 1971 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1972 soisdisconnected(pcb->so); 1973 break; 1974 1975 default: 1976 NG_BTSOCKET_SCO_ERR( 1977"%s: Invalid socket state=%d\n", __func__, pcb->state); 1978 break; 1979 } 1980 1981 mtx_unlock(&pcb->pcb_mtx); 1982} /* ng_btsocket_sco_process_timeout */ 1983 1984