1/* 2 * ng_btsocket_sco.c 3 */ 4 5/*- 6 * SPDX-License-Identifier: BSD-2-Clause 7 * 8 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: ng_btsocket_sco.c,v 1.2 2005/10/31 18:08:51 max Exp $ 33 */ 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/bitstring.h> 38#include <sys/domain.h> 39#include <sys/endian.h> 40#include <sys/errno.h> 41#include <sys/filedesc.h> 42#include <sys/ioccom.h> 43#include <sys/kernel.h> 44#include <sys/lock.h> 45#include <sys/malloc.h> 46#include <sys/mbuf.h> 47#include <sys/mutex.h> 48#include <sys/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 55#include <net/vnet.h> 56 57#include <netgraph/ng_message.h> 58#include <netgraph/netgraph.h> 59#include <netgraph/bluetooth/include/ng_bluetooth.h> 60#include <netgraph/bluetooth/include/ng_hci.h> 61#include <netgraph/bluetooth/include/ng_l2cap.h> 62#include <netgraph/bluetooth/include/ng_btsocket.h> 63#include <netgraph/bluetooth/include/ng_btsocket_sco.h> 64 65/* MALLOC define */ 66#ifdef NG_SEPARATE_MALLOC 67static MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_SCO, "netgraph_btsocks_sco", 68 "Netgraph Bluetooth SCO sockets"); 69#else 70#define M_NETGRAPH_BTSOCKET_SCO M_NETGRAPH 71#endif /* NG_SEPARATE_MALLOC */ 72 73/* Netgraph node methods */ 74static ng_constructor_t ng_btsocket_sco_node_constructor; 75static ng_rcvmsg_t ng_btsocket_sco_node_rcvmsg; 76static ng_shutdown_t ng_btsocket_sco_node_shutdown; 77static ng_newhook_t ng_btsocket_sco_node_newhook; 78static ng_connect_t ng_btsocket_sco_node_connect; 79static ng_rcvdata_t ng_btsocket_sco_node_rcvdata; 80static ng_disconnect_t ng_btsocket_sco_node_disconnect; 81 82static void ng_btsocket_sco_input (void *, int); 83static void ng_btsocket_sco_rtclean (void *, int); 84 85/* Netgraph type descriptor */ 86static struct ng_type typestruct = { 87 .version = NG_ABI_VERSION, 88 .name = NG_BTSOCKET_SCO_NODE_TYPE, 89 .constructor = ng_btsocket_sco_node_constructor, 90 .rcvmsg = ng_btsocket_sco_node_rcvmsg, 91 .shutdown = ng_btsocket_sco_node_shutdown, 92 .newhook = ng_btsocket_sco_node_newhook, 93 .connect = ng_btsocket_sco_node_connect, 94 .rcvdata = ng_btsocket_sco_node_rcvdata, 95 .disconnect = ng_btsocket_sco_node_disconnect, 96}; 97 98/* Globals */ 99static u_int32_t ng_btsocket_sco_debug_level; 100static node_p ng_btsocket_sco_node; 101static struct ng_bt_itemq ng_btsocket_sco_queue; 102static struct mtx ng_btsocket_sco_queue_mtx; 103static struct task ng_btsocket_sco_queue_task; 104static struct mtx ng_btsocket_sco_sockets_mtx; 105static LIST_HEAD(, ng_btsocket_sco_pcb) ng_btsocket_sco_sockets; 106static LIST_HEAD(, ng_btsocket_sco_rtentry) ng_btsocket_sco_rt; 107static struct mtx ng_btsocket_sco_rt_mtx; 108static struct task ng_btsocket_sco_rt_task; 109static struct timeval ng_btsocket_sco_lasttime; 110static int ng_btsocket_sco_curpps; 111 112/* Sysctl tree */ 113SYSCTL_DECL(_net_bluetooth_sco_sockets); 114static SYSCTL_NODE(_net_bluetooth_sco_sockets, OID_AUTO, seq, 115 CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 116 "Bluetooth SEQPACKET SCO sockets family"); 117SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, debug_level, 118 CTLFLAG_RW, 119 &ng_btsocket_sco_debug_level, NG_BTSOCKET_WARN_LEVEL, 120 "Bluetooth SEQPACKET SCO sockets debug level"); 121SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, queue_len, 122 CTLFLAG_RD, 123 &ng_btsocket_sco_queue.len, 0, 124 "Bluetooth SEQPACKET SCO sockets input queue length"); 125SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, queue_maxlen, 126 CTLFLAG_RD, 127 &ng_btsocket_sco_queue.maxlen, 0, 128 "Bluetooth SEQPACKET SCO sockets input queue max. length"); 129SYSCTL_UINT(_net_bluetooth_sco_sockets_seq, OID_AUTO, queue_drops, 130 CTLFLAG_RD, 131 &ng_btsocket_sco_queue.drops, 0, 132 "Bluetooth SEQPACKET SCO sockets input queue drops"); 133 134/* Debug */ 135#define NG_BTSOCKET_SCO_INFO \ 136 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_INFO_LEVEL && \ 137 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 138 printf 139 140#define NG_BTSOCKET_SCO_WARN \ 141 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_WARN_LEVEL && \ 142 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 143 printf 144 145#define NG_BTSOCKET_SCO_ERR \ 146 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_ERR_LEVEL && \ 147 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 148 printf 149 150#define NG_BTSOCKET_SCO_ALERT \ 151 if (ng_btsocket_sco_debug_level >= NG_BTSOCKET_ALERT_LEVEL && \ 152 ppsratecheck(&ng_btsocket_sco_lasttime, &ng_btsocket_sco_curpps, 1)) \ 153 printf 154 155/* 156 * Netgraph message processing routines 157 */ 158 159static int ng_btsocket_sco_process_lp_con_cfm 160 (struct ng_mesg *, ng_btsocket_sco_rtentry_p); 161static int ng_btsocket_sco_process_lp_con_ind 162 (struct ng_mesg *, ng_btsocket_sco_rtentry_p); 163static int ng_btsocket_sco_process_lp_discon_ind 164 (struct ng_mesg *, ng_btsocket_sco_rtentry_p); 165 166/* 167 * Send LP messages to the lower layer 168 */ 169 170static int ng_btsocket_sco_send_lp_con_req 171 (ng_btsocket_sco_pcb_p); 172static int ng_btsocket_sco_send_lp_con_rsp 173 (ng_btsocket_sco_rtentry_p, bdaddr_p, int); 174static int ng_btsocket_sco_send_lp_discon_req 175 (ng_btsocket_sco_pcb_p); 176 177static int ng_btsocket_sco_send2 178 (ng_btsocket_sco_pcb_p); 179 180/* 181 * Timeout processing routines 182 */ 183 184static void ng_btsocket_sco_timeout (ng_btsocket_sco_pcb_p); 185static void ng_btsocket_sco_untimeout (ng_btsocket_sco_pcb_p); 186static void ng_btsocket_sco_process_timeout (void *); 187 188/* 189 * Other stuff 190 */ 191 192static ng_btsocket_sco_pcb_p ng_btsocket_sco_pcb_by_addr(bdaddr_p); 193static ng_btsocket_sco_pcb_p ng_btsocket_sco_pcb_by_handle(bdaddr_p, int); 194static ng_btsocket_sco_pcb_p ng_btsocket_sco_pcb_by_addrs(bdaddr_p, bdaddr_p); 195 196#define ng_btsocket_sco_wakeup_input_task() \ 197 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_sco_queue_task) 198 199#define ng_btsocket_sco_wakeup_route_task() \ 200 taskqueue_enqueue(taskqueue_swi, &ng_btsocket_sco_rt_task) 201 202/***************************************************************************** 203 ***************************************************************************** 204 ** Netgraph node interface 205 ***************************************************************************** 206 *****************************************************************************/ 207 208/* 209 * Netgraph node constructor. Do not allow to create node of this type. 210 */ 211 212static int 213ng_btsocket_sco_node_constructor(node_p node) 214{ 215 return (EINVAL); 216} /* ng_btsocket_sco_node_constructor */ 217 218/* 219 * Do local shutdown processing. Let old node go and create new fresh one. 220 */ 221 222static int 223ng_btsocket_sco_node_shutdown(node_p node) 224{ 225 int error = 0; 226 227 NG_NODE_UNREF(node); 228 229 /* Create new node */ 230 error = ng_make_node_common(&typestruct, &ng_btsocket_sco_node); 231 if (error != 0) { 232 NG_BTSOCKET_SCO_ALERT( 233"%s: Could not create Netgraph node, error=%d\n", __func__, error); 234 235 ng_btsocket_sco_node = NULL; 236 237 return (error); 238 } 239 240 error = ng_name_node(ng_btsocket_sco_node, 241 NG_BTSOCKET_SCO_NODE_TYPE); 242 if (error != 0) { 243 NG_BTSOCKET_SCO_ALERT( 244"%s: Could not name Netgraph node, error=%d\n", __func__, error); 245 246 NG_NODE_UNREF(ng_btsocket_sco_node); 247 ng_btsocket_sco_node = NULL; 248 249 return (error); 250 } 251 252 return (0); 253} /* ng_btsocket_sco_node_shutdown */ 254 255/* 256 * We allow any hook to be connected to the node. 257 */ 258 259static int 260ng_btsocket_sco_node_newhook(node_p node, hook_p hook, char const *name) 261{ 262 return (0); 263} /* ng_btsocket_sco_node_newhook */ 264 265/* 266 * Just say "YEP, that's OK by me!" 267 */ 268 269static int 270ng_btsocket_sco_node_connect(hook_p hook) 271{ 272 NG_HOOK_SET_PRIVATE(hook, NULL); 273 NG_HOOK_REF(hook); /* Keep extra reference to the hook */ 274 275#if 0 276 NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook)); 277 NG_HOOK_FORCE_QUEUE(hook); 278#endif 279 280 return (0); 281} /* ng_btsocket_sco_node_connect */ 282 283/* 284 * Hook disconnection. Schedule route cleanup task 285 */ 286 287static int 288ng_btsocket_sco_node_disconnect(hook_p hook) 289{ 290 /* 291 * If hook has private information than we must have this hook in 292 * the routing table and must schedule cleaning for the routing table. 293 * Otherwise hook was connected but we never got "hook_info" message, 294 * so we have never added this hook to the routing table and it save 295 * to just delete it. 296 */ 297 298 if (NG_HOOK_PRIVATE(hook) != NULL) 299 return (ng_btsocket_sco_wakeup_route_task()); 300 301 NG_HOOK_UNREF(hook); /* Remove extra reference */ 302 303 return (0); 304} /* ng_btsocket_sco_node_disconnect */ 305 306/* 307 * Process incoming messages 308 */ 309 310static int 311ng_btsocket_sco_node_rcvmsg(node_p node, item_p item, hook_p hook) 312{ 313 struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 314 int error = 0; 315 316 if (msg != NULL && msg->header.typecookie == NGM_HCI_COOKIE) { 317 mtx_lock(&ng_btsocket_sco_queue_mtx); 318 if (NG_BT_ITEMQ_FULL(&ng_btsocket_sco_queue)) { 319 NG_BTSOCKET_SCO_ERR( 320"%s: Input queue is full (msg)\n", __func__); 321 322 NG_BT_ITEMQ_DROP(&ng_btsocket_sco_queue); 323 NG_FREE_ITEM(item); 324 error = ENOBUFS; 325 } else { 326 if (hook != NULL) { 327 NG_HOOK_REF(hook); 328 NGI_SET_HOOK(item, hook); 329 } 330 331 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_sco_queue, item); 332 error = ng_btsocket_sco_wakeup_input_task(); 333 } 334 mtx_unlock(&ng_btsocket_sco_queue_mtx); 335 } else { 336 NG_FREE_ITEM(item); 337 error = EINVAL; 338 } 339 340 return (error); 341} /* ng_btsocket_sco_node_rcvmsg */ 342 343/* 344 * Receive data on a hook 345 */ 346 347static int 348ng_btsocket_sco_node_rcvdata(hook_p hook, item_p item) 349{ 350 int error = 0; 351 352 mtx_lock(&ng_btsocket_sco_queue_mtx); 353 if (NG_BT_ITEMQ_FULL(&ng_btsocket_sco_queue)) { 354 NG_BTSOCKET_SCO_ERR( 355"%s: Input queue is full (data)\n", __func__); 356 357 NG_BT_ITEMQ_DROP(&ng_btsocket_sco_queue); 358 NG_FREE_ITEM(item); 359 error = ENOBUFS; 360 } else { 361 NG_HOOK_REF(hook); 362 NGI_SET_HOOK(item, hook); 363 364 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_sco_queue, item); 365 error = ng_btsocket_sco_wakeup_input_task(); 366 } 367 mtx_unlock(&ng_btsocket_sco_queue_mtx); 368 369 return (error); 370} /* ng_btsocket_sco_node_rcvdata */ 371 372/* 373 * Process LP_ConnectCfm event from the lower layer protocol 374 */ 375 376static int 377ng_btsocket_sco_process_lp_con_cfm(struct ng_mesg *msg, 378 ng_btsocket_sco_rtentry_p rt) 379{ 380 ng_hci_lp_con_cfm_ep *ep = NULL; 381 ng_btsocket_sco_pcb_t *pcb = NULL; 382 int error = 0; 383 384 if (msg->header.arglen != sizeof(*ep)) 385 return (EMSGSIZE); 386 387 ep = (ng_hci_lp_con_cfm_ep *)(msg->data); 388 389 mtx_lock(&ng_btsocket_sco_sockets_mtx); 390 391 /* Look for the socket with the token */ 392 pcb = ng_btsocket_sco_pcb_by_addrs(&rt->src, &ep->bdaddr); 393 if (pcb == NULL) { 394 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 395 return (ENOENT); 396 } 397 398 /* pcb is locked */ 399 400 NG_BTSOCKET_SCO_INFO( 401"%s: Got LP_ConnectCfm response, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 402"dst bdaddr=%x:%x:%x:%x:%x:%x, status=%d, handle=%d, state=%d\n", 403 __func__, 404 pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 405 pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 406 pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 407 pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 408 ep->status, ep->con_handle, pcb->state); 409 410 if (pcb->state != NG_BTSOCKET_SCO_CONNECTING) { 411 mtx_unlock(&pcb->pcb_mtx); 412 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 413 414 return (ENOENT); 415 } 416 417 ng_btsocket_sco_untimeout(pcb); 418 419 if (ep->status == 0) { 420 /* 421 * Connection is open. Update connection handle and 422 * socket state 423 */ 424 425 pcb->con_handle = ep->con_handle; 426 pcb->state = NG_BTSOCKET_SCO_OPEN; 427 soisconnected(pcb->so); 428 } else { 429 /* 430 * We have failed to open connection, so disconnect the socket 431 */ 432 433 pcb->so->so_error = ECONNREFUSED; /* XXX convert status ??? */ 434 pcb->state = NG_BTSOCKET_SCO_CLOSED; 435 soisdisconnected(pcb->so); 436 } 437 438 mtx_unlock(&pcb->pcb_mtx); 439 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 440 441 return (error); 442} /* ng_btsocket_sco_process_lp_con_cfm */ 443 444/* 445 * Process LP_ConnectInd indicator. Find socket that listens on address. 446 * Find exact or closest match. 447 */ 448 449static int 450ng_btsocket_sco_process_lp_con_ind(struct ng_mesg *msg, 451 ng_btsocket_sco_rtentry_p rt) 452{ 453 ng_hci_lp_con_ind_ep *ep = NULL; 454 ng_btsocket_sco_pcb_t *pcb = NULL, *pcb1 = NULL; 455 int error = 0; 456 u_int16_t status = 0; 457 458 if (msg->header.arglen != sizeof(*ep)) 459 return (EMSGSIZE); 460 461 ep = (ng_hci_lp_con_ind_ep *)(msg->data); 462 463 NG_BTSOCKET_SCO_INFO( 464"%s: Got LP_ConnectInd indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 465"dst bdaddr=%x:%x:%x:%x:%x:%x\n", 466 __func__, 467 rt->src.b[5], rt->src.b[4], rt->src.b[3], 468 rt->src.b[2], rt->src.b[1], rt->src.b[0], 469 ep->bdaddr.b[5], ep->bdaddr.b[4], ep->bdaddr.b[3], 470 ep->bdaddr.b[2], ep->bdaddr.b[1], ep->bdaddr.b[0]); 471 472 mtx_lock(&ng_btsocket_sco_sockets_mtx); 473 474 pcb = ng_btsocket_sco_pcb_by_addr(&rt->src); 475 if (pcb != NULL) { 476 struct socket *so1; 477 478 /* pcb is locked */ 479 480 CURVNET_SET(pcb->so->so_vnet); 481 so1 = sonewconn(pcb->so, 0); 482 CURVNET_RESTORE(); 483 484 if (so1 == NULL) { 485 status = 0x0d; /* Rejected due to limited resources */ 486 goto respond; 487 } 488 489 /* 490 * If we got here than we have created new socket. So complete 491 * connection. If we we listening on specific address then copy 492 * source address from listening socket, otherwise copy source 493 * address from hook's routing information. 494 */ 495 496 pcb1 = so2sco_pcb(so1); 497 KASSERT((pcb1 != NULL), 498("%s: pcb1 == NULL\n", __func__)); 499 500 mtx_lock(&pcb1->pcb_mtx); 501 502 if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)) != 0) 503 bcopy(&pcb->src, &pcb1->src, sizeof(pcb1->src)); 504 else 505 bcopy(&rt->src, &pcb1->src, sizeof(pcb1->src)); 506 507 pcb1->flags &= ~NG_BTSOCKET_SCO_CLIENT; 508 509 bcopy(&ep->bdaddr, &pcb1->dst, sizeof(pcb1->dst)); 510 pcb1->rt = rt; 511 } else 512 /* Nobody listens on requested BDADDR */ 513 status = 0x1f; /* Unspecified Error */ 514 515respond: 516 error = ng_btsocket_sco_send_lp_con_rsp(rt, &ep->bdaddr, status); 517 if (pcb1 != NULL) { 518 if (error != 0) { 519 pcb1->so->so_error = error; 520 pcb1->state = NG_BTSOCKET_SCO_CLOSED; 521 soisdisconnected(pcb1->so); 522 } else { 523 pcb1->state = NG_BTSOCKET_SCO_CONNECTING; 524 soisconnecting(pcb1->so); 525 526 ng_btsocket_sco_timeout(pcb1); 527 } 528 529 mtx_unlock(&pcb1->pcb_mtx); 530 } 531 532 if (pcb != NULL) 533 mtx_unlock(&pcb->pcb_mtx); 534 535 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 536 537 return (error); 538} /* ng_btsocket_sco_process_lp_con_ind */ 539 540/* 541 * Process LP_DisconnectInd indicator 542 */ 543 544static int 545ng_btsocket_sco_process_lp_discon_ind(struct ng_mesg *msg, 546 ng_btsocket_sco_rtentry_p rt) 547{ 548 ng_hci_lp_discon_ind_ep *ep = NULL; 549 ng_btsocket_sco_pcb_t *pcb = NULL; 550 551 /* Check message */ 552 if (msg->header.arglen != sizeof(*ep)) 553 return (EMSGSIZE); 554 555 ep = (ng_hci_lp_discon_ind_ep *)(msg->data); 556 557 mtx_lock(&ng_btsocket_sco_sockets_mtx); 558 559 /* Look for the socket with given channel ID */ 560 pcb = ng_btsocket_sco_pcb_by_handle(&rt->src, ep->con_handle); 561 if (pcb == NULL) { 562 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 563 return (0); 564 } 565 566 /* 567 * Disconnect the socket. If there was any pending request we can 568 * not do anything here anyway. 569 */ 570 571 /* pcb is locked */ 572 573 NG_BTSOCKET_SCO_INFO( 574"%s: Got LP_DisconnectInd indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 575"dst bdaddr=%x:%x:%x:%x:%x:%x, handle=%d, state=%d\n", 576 __func__, 577 pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 578 pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 579 pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 580 pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 581 pcb->con_handle, pcb->state); 582 583 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 584 ng_btsocket_sco_untimeout(pcb); 585 586 pcb->state = NG_BTSOCKET_SCO_CLOSED; 587 soisdisconnected(pcb->so); 588 589 mtx_unlock(&pcb->pcb_mtx); 590 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 591 592 return (0); 593} /* ng_btsocket_sco_process_lp_discon_ind */ 594 595/* 596 * Send LP_ConnectReq request 597 */ 598 599static int 600ng_btsocket_sco_send_lp_con_req(ng_btsocket_sco_pcb_p pcb) 601{ 602 struct ng_mesg *msg = NULL; 603 ng_hci_lp_con_req_ep *ep = NULL; 604 int error = 0; 605 606 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 607 608 if (pcb->rt == NULL || 609 pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 610 return (ENETDOWN); 611 612 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_CON_REQ, 613 sizeof(*ep), M_NOWAIT); 614 if (msg == NULL) 615 return (ENOMEM); 616 617 ep = (ng_hci_lp_con_req_ep *)(msg->data); 618 ep->link_type = NG_HCI_LINK_SCO; 619 bcopy(&pcb->dst, &ep->bdaddr, sizeof(ep->bdaddr)); 620 621 NG_SEND_MSG_HOOK(error, ng_btsocket_sco_node, msg, pcb->rt->hook, 0); 622 623 return (error); 624} /* ng_btsocket_sco_send_lp_con_req */ 625 626/* 627 * Send LP_ConnectRsp response 628 */ 629 630static int 631ng_btsocket_sco_send_lp_con_rsp(ng_btsocket_sco_rtentry_p rt, bdaddr_p dst, int status) 632{ 633 struct ng_mesg *msg = NULL; 634 ng_hci_lp_con_rsp_ep *ep = NULL; 635 int error = 0; 636 637 if (rt == NULL || rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 638 return (ENETDOWN); 639 640 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_CON_RSP, 641 sizeof(*ep), M_NOWAIT); 642 if (msg == NULL) 643 return (ENOMEM); 644 645 ep = (ng_hci_lp_con_rsp_ep *)(msg->data); 646 ep->status = status; 647 ep->link_type = NG_HCI_LINK_SCO; 648 bcopy(dst, &ep->bdaddr, sizeof(ep->bdaddr)); 649 650 NG_SEND_MSG_HOOK(error, ng_btsocket_sco_node, msg, rt->hook, 0); 651 652 return (error); 653} /* ng_btsocket_sco_send_lp_con_rsp */ 654 655/* 656 * Send LP_DisconReq request 657 */ 658 659static int 660ng_btsocket_sco_send_lp_discon_req(ng_btsocket_sco_pcb_p pcb) 661{ 662 struct ng_mesg *msg = NULL; 663 ng_hci_lp_discon_req_ep *ep = NULL; 664 int error = 0; 665 666 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 667 668 if (pcb->rt == NULL || 669 pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 670 return (ENETDOWN); 671 672 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_DISCON_REQ, 673 sizeof(*ep), M_NOWAIT); 674 if (msg == NULL) 675 return (ENOMEM); 676 677 ep = (ng_hci_lp_discon_req_ep *)(msg->data); 678 ep->con_handle = pcb->con_handle; 679 ep->reason = 0x13; /* User Ended Connection */ 680 681 NG_SEND_MSG_HOOK(error, ng_btsocket_sco_node, msg, pcb->rt->hook, 0); 682 683 return (error); 684} /* ng_btsocket_sco_send_lp_discon_req */ 685 686/***************************************************************************** 687 ***************************************************************************** 688 ** Socket interface 689 ***************************************************************************** 690 *****************************************************************************/ 691 692/* 693 * SCO sockets data input routine 694 */ 695 696static void 697ng_btsocket_sco_data_input(struct mbuf *m, hook_p hook) 698{ 699 ng_hci_scodata_pkt_t *hdr = NULL; 700 ng_btsocket_sco_pcb_t *pcb = NULL; 701 ng_btsocket_sco_rtentry_t *rt = NULL; 702 u_int16_t con_handle; 703 704 if (hook == NULL) { 705 NG_BTSOCKET_SCO_ALERT( 706"%s: Invalid source hook for SCO data packet\n", __func__); 707 goto drop; 708 } 709 710 rt = (ng_btsocket_sco_rtentry_t *) NG_HOOK_PRIVATE(hook); 711 if (rt == NULL) { 712 NG_BTSOCKET_SCO_ALERT( 713"%s: Could not find out source bdaddr for SCO data packet\n", __func__); 714 goto drop; 715 } 716 717 /* Make sure we can access header */ 718 if (m->m_pkthdr.len < sizeof(*hdr)) { 719 NG_BTSOCKET_SCO_ERR( 720"%s: SCO data packet too small, len=%d\n", __func__, m->m_pkthdr.len); 721 goto drop; 722 } 723 724 if (m->m_len < sizeof(*hdr)) { 725 m = m_pullup(m, sizeof(*hdr)); 726 if (m == NULL) 727 goto drop; 728 } 729 730 /* Strip SCO packet header and verify packet length */ 731 hdr = mtod(m, ng_hci_scodata_pkt_t *); 732 m_adj(m, sizeof(*hdr)); 733 734 if (hdr->length != m->m_pkthdr.len) { 735 NG_BTSOCKET_SCO_ERR( 736"%s: Bad SCO data packet length, len=%d, length=%d\n", 737 __func__, m->m_pkthdr.len, hdr->length); 738 goto drop; 739 } 740 741 /* 742 * Now process packet 743 */ 744 745 con_handle = NG_HCI_CON_HANDLE(le16toh(hdr->con_handle)); 746 747 NG_BTSOCKET_SCO_INFO( 748"%s: Received SCO data packet: src bdaddr=%x:%x:%x:%x:%x:%x, handle=%d, " \ 749"length=%d\n", __func__, 750 rt->src.b[5], rt->src.b[4], rt->src.b[3], 751 rt->src.b[2], rt->src.b[1], rt->src.b[0], 752 con_handle, hdr->length); 753 754 mtx_lock(&ng_btsocket_sco_sockets_mtx); 755 756 /* Find socket */ 757 pcb = ng_btsocket_sco_pcb_by_handle(&rt->src, con_handle); 758 if (pcb == NULL) { 759 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 760 goto drop; 761 } 762 763 /* pcb is locked */ 764 765 if (pcb->state != NG_BTSOCKET_SCO_OPEN) { 766 NG_BTSOCKET_SCO_ERR( 767"%s: No connected socket found, src bdaddr=%x:%x:%x:%x:%x:%x, state=%d\n", 768 __func__, 769 rt->src.b[5], rt->src.b[4], rt->src.b[3], 770 rt->src.b[2], rt->src.b[1], rt->src.b[0], 771 pcb->state); 772 773 mtx_unlock(&pcb->pcb_mtx); 774 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 775 goto drop; 776 } 777 778 /* Check if we have enough space in socket receive queue */ 779 if (m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) { 780 NG_BTSOCKET_SCO_ERR( 781"%s: Not enough space in socket receive queue. Dropping SCO data packet, " \ 782"src bdaddr=%x:%x:%x:%x:%x:%x, len=%d, space=%ld\n", 783 __func__, 784 rt->src.b[5], rt->src.b[4], rt->src.b[3], 785 rt->src.b[2], rt->src.b[1], rt->src.b[0], 786 m->m_pkthdr.len, 787 sbspace(&pcb->so->so_rcv)); 788 789 mtx_unlock(&pcb->pcb_mtx); 790 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 791 goto drop; 792 } 793 794 /* Append packet to the socket receive queue and wakeup */ 795 sbappendrecord(&pcb->so->so_rcv, m); 796 m = NULL; 797 798 sorwakeup(pcb->so); 799 800 mtx_unlock(&pcb->pcb_mtx); 801 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 802drop: 803 NG_FREE_M(m); /* checks for m != NULL */ 804} /* ng_btsocket_sco_data_input */ 805 806/* 807 * SCO sockets default message input routine 808 */ 809 810static void 811ng_btsocket_sco_default_msg_input(struct ng_mesg *msg, hook_p hook) 812{ 813 ng_btsocket_sco_rtentry_t *rt = NULL; 814 815 if (hook == NULL || NG_HOOK_NOT_VALID(hook)) 816 return; 817 818 rt = (ng_btsocket_sco_rtentry_t *) NG_HOOK_PRIVATE(hook); 819 820 switch (msg->header.cmd) { 821 case NGM_HCI_NODE_UP: { 822 ng_hci_node_up_ep *ep = NULL; 823 824 if (msg->header.arglen != sizeof(*ep)) 825 break; 826 827 ep = (ng_hci_node_up_ep *)(msg->data); 828 if (bcmp(&ep->bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 829 break; 830 831 if (rt == NULL) { 832 rt = malloc(sizeof(*rt), 833 M_NETGRAPH_BTSOCKET_SCO, M_NOWAIT|M_ZERO); 834 if (rt == NULL) 835 break; 836 837 NG_HOOK_SET_PRIVATE(hook, rt); 838 839 mtx_lock(&ng_btsocket_sco_rt_mtx); 840 841 LIST_INSERT_HEAD(&ng_btsocket_sco_rt, rt, next); 842 } else 843 mtx_lock(&ng_btsocket_sco_rt_mtx); 844 845 bcopy(&ep->bdaddr, &rt->src, sizeof(rt->src)); 846 rt->pkt_size = (ep->pkt_size == 0)? 60 : ep->pkt_size; 847 rt->num_pkts = ep->num_pkts; 848 rt->hook = hook; 849 850 mtx_unlock(&ng_btsocket_sco_rt_mtx); 851 852 NG_BTSOCKET_SCO_INFO( 853"%s: Updating hook \"%s\", src bdaddr=%x:%x:%x:%x:%x:%x, pkt_size=%d, " \ 854"num_pkts=%d\n", __func__, NG_HOOK_NAME(hook), 855 rt->src.b[5], rt->src.b[4], rt->src.b[3], 856 rt->src.b[2], rt->src.b[1], rt->src.b[0], 857 rt->pkt_size, rt->num_pkts); 858 } break; 859 860 case NGM_HCI_SYNC_CON_QUEUE: { 861 ng_hci_sync_con_queue_ep *ep = NULL; 862 ng_btsocket_sco_pcb_t *pcb = NULL; 863 864 if (rt == NULL || msg->header.arglen != sizeof(*ep)) 865 break; 866 867 ep = (ng_hci_sync_con_queue_ep *)(msg->data); 868 869 rt->pending -= ep->completed; 870 if (rt->pending < 0) { 871 NG_BTSOCKET_SCO_WARN( 872"%s: Pending packet counter is out of sync! bdaddr=%x:%x:%x:%x:%x:%x, " \ 873"handle=%d, pending=%d, completed=%d\n", 874 __func__, 875 rt->src.b[5], rt->src.b[4], rt->src.b[3], 876 rt->src.b[2], rt->src.b[1], rt->src.b[0], 877 ep->con_handle, rt->pending, 878 ep->completed); 879 880 rt->pending = 0; 881 } 882 883 mtx_lock(&ng_btsocket_sco_sockets_mtx); 884 885 /* Find socket */ 886 pcb = ng_btsocket_sco_pcb_by_handle(&rt->src, ep->con_handle); 887 if (pcb == NULL) { 888 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 889 break; 890 } 891 892 /* pcb is locked */ 893 894 /* Check state */ 895 if (pcb->state == NG_BTSOCKET_SCO_OPEN) { 896 /* Remove timeout */ 897 ng_btsocket_sco_untimeout(pcb); 898 899 /* Drop completed packets from the send queue */ 900 for (; ep->completed > 0; ep->completed --) 901 sbdroprecord(&pcb->so->so_snd); 902 903 /* Send more if we have any */ 904 if (sbavail(&pcb->so->so_snd) > 0) 905 if (ng_btsocket_sco_send2(pcb) == 0) 906 ng_btsocket_sco_timeout(pcb); 907 908 /* Wake up writers */ 909 sowwakeup(pcb->so); 910 } 911 912 mtx_unlock(&pcb->pcb_mtx); 913 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 914 } break; 915 916 default: 917 NG_BTSOCKET_SCO_WARN( 918"%s: Unknown message, cmd=%d\n", __func__, msg->header.cmd); 919 break; 920 } 921 922 NG_FREE_MSG(msg); /* Checks for msg != NULL */ 923} /* ng_btsocket_sco_default_msg_input */ 924 925/* 926 * SCO sockets LP message input routine 927 */ 928 929static void 930ng_btsocket_sco_lp_msg_input(struct ng_mesg *msg, hook_p hook) 931{ 932 ng_btsocket_sco_rtentry_p rt = NULL; 933 934 if (hook == NULL) { 935 NG_BTSOCKET_SCO_ALERT( 936"%s: Invalid source hook for LP message\n", __func__); 937 goto drop; 938 } 939 940 rt = (ng_btsocket_sco_rtentry_p) NG_HOOK_PRIVATE(hook); 941 if (rt == NULL) { 942 NG_BTSOCKET_SCO_ALERT( 943"%s: Could not find out source bdaddr for LP message\n", __func__); 944 goto drop; 945 } 946 947 switch (msg->header.cmd) { 948 case NGM_HCI_LP_CON_CFM: /* Connection Confirmation Event */ 949 ng_btsocket_sco_process_lp_con_cfm(msg, rt); 950 break; 951 952 case NGM_HCI_LP_CON_IND: /* Connection Indication Event */ 953 ng_btsocket_sco_process_lp_con_ind(msg, rt); 954 break; 955 956 case NGM_HCI_LP_DISCON_IND: /* Disconnection Indication Event */ 957 ng_btsocket_sco_process_lp_discon_ind(msg, rt); 958 break; 959 960 /* XXX FIXME add other LP messages */ 961 962 default: 963 NG_BTSOCKET_SCO_WARN( 964"%s: Unknown LP message, cmd=%d\n", __func__, msg->header.cmd); 965 break; 966 } 967drop: 968 NG_FREE_MSG(msg); 969} /* ng_btsocket_sco_lp_msg_input */ 970 971/* 972 * SCO sockets input routine 973 */ 974 975static void 976ng_btsocket_sco_input(void *context, int pending) 977{ 978 item_p item = NULL; 979 hook_p hook = NULL; 980 981 for (;;) { 982 mtx_lock(&ng_btsocket_sco_queue_mtx); 983 NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_sco_queue, item); 984 mtx_unlock(&ng_btsocket_sco_queue_mtx); 985 986 if (item == NULL) 987 break; 988 989 NGI_GET_HOOK(item, hook); 990 if (hook != NULL && NG_HOOK_NOT_VALID(hook)) 991 goto drop; 992 993 switch(item->el_flags & NGQF_TYPE) { 994 case NGQF_DATA: { 995 struct mbuf *m = NULL; 996 997 NGI_GET_M(item, m); 998 ng_btsocket_sco_data_input(m, hook); 999 } break; 1000 1001 case NGQF_MESG: { 1002 struct ng_mesg *msg = NULL; 1003 1004 NGI_GET_MSG(item, msg); 1005 1006 switch (msg->header.cmd) { 1007 case NGM_HCI_LP_CON_CFM: 1008 case NGM_HCI_LP_CON_IND: 1009 case NGM_HCI_LP_DISCON_IND: 1010 /* XXX FIXME add other LP messages */ 1011 ng_btsocket_sco_lp_msg_input(msg, hook); 1012 break; 1013 1014 default: 1015 ng_btsocket_sco_default_msg_input(msg, hook); 1016 break; 1017 } 1018 } break; 1019 1020 default: 1021 KASSERT(0, 1022("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 1023 break; 1024 } 1025drop: 1026 if (hook != NULL) 1027 NG_HOOK_UNREF(hook); 1028 1029 NG_FREE_ITEM(item); 1030 } 1031} /* ng_btsocket_sco_input */ 1032 1033/* 1034 * Route cleanup task. Gets scheduled when hook is disconnected. Here we 1035 * will find all sockets that use "invalid" hook and disconnect them. 1036 */ 1037 1038static void 1039ng_btsocket_sco_rtclean(void *context, int pending) 1040{ 1041 ng_btsocket_sco_pcb_p pcb = NULL, pcb_next = NULL; 1042 ng_btsocket_sco_rtentry_p rt = NULL; 1043 1044 /* 1045 * First disconnect all sockets that use "invalid" hook 1046 */ 1047 1048 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1049 1050 for(pcb = LIST_FIRST(&ng_btsocket_sco_sockets); pcb != NULL; ) { 1051 mtx_lock(&pcb->pcb_mtx); 1052 pcb_next = LIST_NEXT(pcb, next); 1053 1054 if (pcb->rt != NULL && 1055 pcb->rt->hook != NULL && NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1056 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 1057 ng_btsocket_sco_untimeout(pcb); 1058 1059 pcb->rt = NULL; 1060 pcb->so->so_error = ENETDOWN; 1061 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1062 soisdisconnected(pcb->so); 1063 } 1064 1065 mtx_unlock(&pcb->pcb_mtx); 1066 pcb = pcb_next; 1067 } 1068 1069 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1070 1071 /* 1072 * Now cleanup routing table 1073 */ 1074 1075 mtx_lock(&ng_btsocket_sco_rt_mtx); 1076 1077 for (rt = LIST_FIRST(&ng_btsocket_sco_rt); rt != NULL; ) { 1078 ng_btsocket_sco_rtentry_p rt_next = LIST_NEXT(rt, next); 1079 1080 if (rt->hook != NULL && NG_HOOK_NOT_VALID(rt->hook)) { 1081 LIST_REMOVE(rt, next); 1082 1083 NG_HOOK_SET_PRIVATE(rt->hook, NULL); 1084 NG_HOOK_UNREF(rt->hook); /* Remove extra reference */ 1085 1086 bzero(rt, sizeof(*rt)); 1087 free(rt, M_NETGRAPH_BTSOCKET_SCO); 1088 } 1089 1090 rt = rt_next; 1091 } 1092 1093 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1094} /* ng_btsocket_sco_rtclean */ 1095 1096/* 1097 * Initialize everything 1098 */ 1099 1100static void 1101ng_btsocket_sco_init(void *arg __unused) 1102{ 1103 int error = 0; 1104 1105 ng_btsocket_sco_node = NULL; 1106 ng_btsocket_sco_debug_level = NG_BTSOCKET_WARN_LEVEL; 1107 1108 /* Register Netgraph node type */ 1109 error = ng_newtype(&typestruct); 1110 if (error != 0) { 1111 NG_BTSOCKET_SCO_ALERT( 1112"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 1113 1114 return; 1115 } 1116 1117 /* Create Netgrapg node */ 1118 error = ng_make_node_common(&typestruct, &ng_btsocket_sco_node); 1119 if (error != 0) { 1120 NG_BTSOCKET_SCO_ALERT( 1121"%s: Could not create Netgraph node, error=%d\n", __func__, error); 1122 1123 ng_btsocket_sco_node = NULL; 1124 1125 return; 1126 } 1127 1128 error = ng_name_node(ng_btsocket_sco_node, NG_BTSOCKET_SCO_NODE_TYPE); 1129 if (error != 0) { 1130 NG_BTSOCKET_SCO_ALERT( 1131"%s: Could not name Netgraph node, error=%d\n", __func__, error); 1132 1133 NG_NODE_UNREF(ng_btsocket_sco_node); 1134 ng_btsocket_sco_node = NULL; 1135 1136 return; 1137 } 1138 1139 /* Create input queue */ 1140 NG_BT_ITEMQ_INIT(&ng_btsocket_sco_queue, 300); 1141 mtx_init(&ng_btsocket_sco_queue_mtx, 1142 "btsocks_sco_queue_mtx", NULL, MTX_DEF); 1143 TASK_INIT(&ng_btsocket_sco_queue_task, 0, 1144 ng_btsocket_sco_input, NULL); 1145 1146 /* Create list of sockets */ 1147 LIST_INIT(&ng_btsocket_sco_sockets); 1148 mtx_init(&ng_btsocket_sco_sockets_mtx, 1149 "btsocks_sco_sockets_mtx", NULL, MTX_DEF); 1150 1151 /* Routing table */ 1152 LIST_INIT(&ng_btsocket_sco_rt); 1153 mtx_init(&ng_btsocket_sco_rt_mtx, 1154 "btsocks_sco_rt_mtx", NULL, MTX_DEF); 1155 TASK_INIT(&ng_btsocket_sco_rt_task, 0, 1156 ng_btsocket_sco_rtclean, NULL); 1157} /* ng_btsocket_sco_init */ 1158SYSINIT(ng_btsocket_sco_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, 1159 ng_btsocket_sco_init, NULL); 1160 1161/* 1162 * Abort connection on socket 1163 */ 1164 1165void 1166ng_btsocket_sco_abort(struct socket *so) 1167{ 1168 so->so_error = ECONNABORTED; 1169 1170 (void) ng_btsocket_sco_disconnect(so); 1171} /* ng_btsocket_sco_abort */ 1172 1173void 1174ng_btsocket_sco_close(struct socket *so) 1175{ 1176 (void) ng_btsocket_sco_disconnect(so); 1177} /* ng_btsocket_sco_close */ 1178 1179/* 1180 * Create and attach new socket 1181 */ 1182 1183int 1184ng_btsocket_sco_attach(struct socket *so, int proto, struct thread *td) 1185{ 1186 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1187 int error; 1188 1189 /* Check socket and protocol */ 1190 if (ng_btsocket_sco_node == NULL) 1191 return (EPROTONOSUPPORT); 1192 if (so->so_type != SOCK_SEQPACKET) 1193 return (ESOCKTNOSUPPORT); 1194 1195#if 0 /* XXX sonewconn() calls "pru_attach" with proto == 0 */ 1196 if (proto != 0) 1197 if (proto != BLUETOOTH_PROTO_SCO) 1198 return (EPROTONOSUPPORT); 1199#endif /* XXX */ 1200 1201 if (pcb != NULL) 1202 return (EISCONN); 1203 1204 /* Reserve send and receive space if it is not reserved yet */ 1205 if ((so->so_snd.sb_hiwat == 0) || (so->so_rcv.sb_hiwat == 0)) { 1206 error = soreserve(so, NG_BTSOCKET_SCO_SENDSPACE, 1207 NG_BTSOCKET_SCO_RECVSPACE); 1208 if (error != 0) 1209 return (error); 1210 } 1211 1212 /* Allocate the PCB */ 1213 pcb = malloc(sizeof(*pcb), 1214 M_NETGRAPH_BTSOCKET_SCO, M_NOWAIT | M_ZERO); 1215 if (pcb == NULL) 1216 return (ENOMEM); 1217 1218 /* Link the PCB and the socket */ 1219 so->so_pcb = (caddr_t) pcb; 1220 pcb->so = so; 1221 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1222 1223 callout_init(&pcb->timo, 1); 1224 1225 /* 1226 * Mark PCB mutex as DUPOK to prevent "duplicated lock of 1227 * the same type" message. When accepting new SCO connection 1228 * ng_btsocket_sco_process_lp_con_ind() holds both PCB mutexes 1229 * for "old" (accepting) PCB and "new" (created) PCB. 1230 */ 1231 1232 mtx_init(&pcb->pcb_mtx, "btsocks_sco_pcb_mtx", NULL, 1233 MTX_DEF|MTX_DUPOK); 1234 1235 /* 1236 * Add the PCB to the list 1237 * 1238 * XXX FIXME VERY IMPORTANT! 1239 * 1240 * This is totally FUBAR. We could get here in two cases: 1241 * 1242 * 1) When user calls socket() 1243 * 2) When we need to accept new incoming connection and call 1244 * sonewconn() 1245 * 1246 * In the first case we must acquire ng_btsocket_sco_sockets_mtx. 1247 * In the second case we hold ng_btsocket_sco_sockets_mtx already. 1248 * So we now need to distinguish between these cases. From reading 1249 * /sys/kern/uipc_socket2.c we can find out that sonewconn() calls 1250 * pru_attach with proto == 0 and td == NULL. For now use this fact 1251 * to figure out if we were called from socket() or from sonewconn(). 1252 */ 1253 1254 if (td != NULL) 1255 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1256 else 1257 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1258 1259 LIST_INSERT_HEAD(&ng_btsocket_sco_sockets, pcb, next); 1260 1261 if (td != NULL) 1262 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1263 1264 return (0); 1265} /* ng_btsocket_sco_attach */ 1266 1267/* 1268 * Bind socket 1269 */ 1270 1271int 1272ng_btsocket_sco_bind(struct socket *so, struct sockaddr *nam, 1273 struct thread *td) 1274{ 1275 ng_btsocket_sco_pcb_t *pcb = NULL; 1276 struct sockaddr_sco *sa = (struct sockaddr_sco *) nam; 1277 1278 if (ng_btsocket_sco_node == NULL) 1279 return (EINVAL); 1280 1281 /* Verify address */ 1282 if (sa == NULL) 1283 return (EINVAL); 1284 if (sa->sco_family != AF_BLUETOOTH) 1285 return (EAFNOSUPPORT); 1286 if (sa->sco_len != sizeof(*sa)) 1287 return (EINVAL); 1288 1289 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1290 1291 /* 1292 * Check if other socket has this address already (look for exact 1293 * match in bdaddr) and assign socket address if it's available. 1294 */ 1295 1296 if (bcmp(&sa->sco_bdaddr, NG_HCI_BDADDR_ANY, sizeof(sa->sco_bdaddr)) != 0) { 1297 LIST_FOREACH(pcb, &ng_btsocket_sco_sockets, next) { 1298 mtx_lock(&pcb->pcb_mtx); 1299 1300 if (bcmp(&pcb->src, &sa->sco_bdaddr, sizeof(bdaddr_t)) == 0) { 1301 mtx_unlock(&pcb->pcb_mtx); 1302 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1303 1304 return (EADDRINUSE); 1305 } 1306 1307 mtx_unlock(&pcb->pcb_mtx); 1308 } 1309 } 1310 1311 pcb = so2sco_pcb(so); 1312 if (pcb == NULL) { 1313 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1314 return (EINVAL); 1315 } 1316 1317 mtx_lock(&pcb->pcb_mtx); 1318 bcopy(&sa->sco_bdaddr, &pcb->src, sizeof(pcb->src)); 1319 mtx_unlock(&pcb->pcb_mtx); 1320 1321 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1322 1323 return (0); 1324} /* ng_btsocket_sco_bind */ 1325 1326/* 1327 * Connect socket 1328 */ 1329 1330int 1331ng_btsocket_sco_connect(struct socket *so, struct sockaddr *nam, 1332 struct thread *td) 1333{ 1334 ng_btsocket_sco_pcb_t *pcb = so2sco_pcb(so); 1335 struct sockaddr_sco *sa = (struct sockaddr_sco *) nam; 1336 ng_btsocket_sco_rtentry_t *rt = NULL; 1337 int have_src, error = 0; 1338 1339 /* Check socket */ 1340 if (pcb == NULL) 1341 return (EINVAL); 1342 if (ng_btsocket_sco_node == NULL) 1343 return (EINVAL); 1344 1345 /* Verify address */ 1346 if (sa == NULL) 1347 return (EINVAL); 1348 if (sa->sco_family != AF_BLUETOOTH) 1349 return (EAFNOSUPPORT); 1350 if (sa->sco_len != sizeof(*sa)) 1351 return (EINVAL); 1352 if (bcmp(&sa->sco_bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 1353 return (EDESTADDRREQ); 1354 1355 /* 1356 * Routing. Socket should be bound to some source address. The source 1357 * address can be ANY. Destination address must be set and it must not 1358 * be ANY. If source address is ANY then find first rtentry that has 1359 * src != dst. 1360 */ 1361 1362 mtx_lock(&ng_btsocket_sco_rt_mtx); 1363 mtx_lock(&pcb->pcb_mtx); 1364 1365 if (pcb->state == NG_BTSOCKET_SCO_CONNECTING) { 1366 mtx_unlock(&pcb->pcb_mtx); 1367 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1368 1369 return (EINPROGRESS); 1370 } 1371 1372 if (bcmp(&sa->sco_bdaddr, &pcb->src, sizeof(pcb->src)) == 0) { 1373 mtx_unlock(&pcb->pcb_mtx); 1374 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1375 1376 return (EINVAL); 1377 } 1378 1379 /* Send destination address and PSM */ 1380 bcopy(&sa->sco_bdaddr, &pcb->dst, sizeof(pcb->dst)); 1381 1382 pcb->rt = NULL; 1383 have_src = bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)); 1384 1385 LIST_FOREACH(rt, &ng_btsocket_sco_rt, next) { 1386 if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 1387 continue; 1388 1389 /* Match src and dst */ 1390 if (have_src) { 1391 if (bcmp(&pcb->src, &rt->src, sizeof(rt->src)) == 0) 1392 break; 1393 } else { 1394 if (bcmp(&pcb->dst, &rt->src, sizeof(rt->src)) != 0) 1395 break; 1396 } 1397 } 1398 1399 if (rt != NULL) { 1400 pcb->rt = rt; 1401 1402 if (!have_src) 1403 bcopy(&rt->src, &pcb->src, sizeof(pcb->src)); 1404 } else 1405 error = EHOSTUNREACH; 1406 1407 /* 1408 * Send LP_Connect request 1409 */ 1410 1411 if (error == 0) { 1412 error = ng_btsocket_sco_send_lp_con_req(pcb); 1413 if (error == 0) { 1414 pcb->flags |= NG_BTSOCKET_SCO_CLIENT; 1415 pcb->state = NG_BTSOCKET_SCO_CONNECTING; 1416 soisconnecting(pcb->so); 1417 1418 ng_btsocket_sco_timeout(pcb); 1419 } 1420 } 1421 1422 mtx_unlock(&pcb->pcb_mtx); 1423 mtx_unlock(&ng_btsocket_sco_rt_mtx); 1424 1425 return (error); 1426} /* ng_btsocket_sco_connect */ 1427 1428/* 1429 * Process ioctl's calls on socket 1430 */ 1431 1432int 1433ng_btsocket_sco_control(struct socket *so, u_long cmd, void *data, 1434 struct ifnet *ifp, struct thread *td) 1435{ 1436 return (EINVAL); 1437} /* ng_btsocket_sco_control */ 1438 1439/* 1440 * Process getsockopt/setsockopt system calls 1441 */ 1442 1443int 1444ng_btsocket_sco_ctloutput(struct socket *so, struct sockopt *sopt) 1445{ 1446 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1447 int error, tmp; 1448 1449 if (ng_btsocket_sco_node == NULL) 1450 return (EINVAL); 1451 if (pcb == NULL) 1452 return (EINVAL); 1453 1454 if (sopt->sopt_level != SOL_SCO) 1455 return (0); 1456 1457 mtx_lock(&pcb->pcb_mtx); 1458 1459 switch (sopt->sopt_dir) { 1460 case SOPT_GET: 1461 if (pcb->state != NG_BTSOCKET_SCO_OPEN) { 1462 error = ENOTCONN; 1463 break; 1464 } 1465 1466 switch (sopt->sopt_name) { 1467 case SO_SCO_MTU: 1468 tmp = pcb->rt->pkt_size; 1469 error = sooptcopyout(sopt, &tmp, sizeof(tmp)); 1470 break; 1471 1472 case SO_SCO_CONNINFO: 1473 tmp = pcb->con_handle; 1474 error = sooptcopyout(sopt, &tmp, sizeof(tmp)); 1475 break; 1476 1477 default: 1478 error = EINVAL; 1479 break; 1480 } 1481 break; 1482 1483 case SOPT_SET: 1484 error = ENOPROTOOPT; 1485 break; 1486 1487 default: 1488 error = EINVAL; 1489 break; 1490 } 1491 1492 mtx_unlock(&pcb->pcb_mtx); 1493 1494 return (error); 1495} /* ng_btsocket_sco_ctloutput */ 1496 1497/* 1498 * Detach and destroy socket 1499 */ 1500 1501void 1502ng_btsocket_sco_detach(struct socket *so) 1503{ 1504 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1505 1506 KASSERT(pcb != NULL, ("ng_btsocket_sco_detach: pcb == NULL")); 1507 1508 if (ng_btsocket_sco_node == NULL) 1509 return; 1510 1511 mtx_lock(&ng_btsocket_sco_sockets_mtx); 1512 mtx_lock(&pcb->pcb_mtx); 1513 1514 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 1515 ng_btsocket_sco_untimeout(pcb); 1516 1517 if (pcb->state == NG_BTSOCKET_SCO_OPEN) 1518 ng_btsocket_sco_send_lp_discon_req(pcb); 1519 1520 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1521 1522 LIST_REMOVE(pcb, next); 1523 1524 mtx_unlock(&pcb->pcb_mtx); 1525 mtx_unlock(&ng_btsocket_sco_sockets_mtx); 1526 1527 mtx_destroy(&pcb->pcb_mtx); 1528 bzero(pcb, sizeof(*pcb)); 1529 free(pcb, M_NETGRAPH_BTSOCKET_SCO); 1530 1531 soisdisconnected(so); 1532 so->so_pcb = NULL; 1533} /* ng_btsocket_sco_detach */ 1534 1535/* 1536 * Disconnect socket 1537 */ 1538 1539int 1540ng_btsocket_sco_disconnect(struct socket *so) 1541{ 1542 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1543 1544 if (pcb == NULL) 1545 return (EINVAL); 1546 if (ng_btsocket_sco_node == NULL) 1547 return (EINVAL); 1548 1549 mtx_lock(&pcb->pcb_mtx); 1550 1551 if (pcb->state == NG_BTSOCKET_SCO_DISCONNECTING) { 1552 mtx_unlock(&pcb->pcb_mtx); 1553 1554 return (EINPROGRESS); 1555 } 1556 1557 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) 1558 ng_btsocket_sco_untimeout(pcb); 1559 1560 if (pcb->state == NG_BTSOCKET_SCO_OPEN) { 1561 ng_btsocket_sco_send_lp_discon_req(pcb); 1562 1563 pcb->state = NG_BTSOCKET_SCO_DISCONNECTING; 1564 soisdisconnecting(so); 1565 1566 ng_btsocket_sco_timeout(pcb); 1567 } else { 1568 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1569 soisdisconnected(so); 1570 } 1571 1572 mtx_unlock(&pcb->pcb_mtx); 1573 1574 return (0); 1575} /* ng_btsocket_sco_disconnect */ 1576 1577/* 1578 * Listen on socket 1579 */ 1580 1581int 1582ng_btsocket_sco_listen(struct socket *so, int backlog, struct thread *td) 1583{ 1584 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1585 int error; 1586 1587 if (pcb == NULL) 1588 return (EINVAL); 1589 if (ng_btsocket_sco_node == NULL) 1590 return (EINVAL); 1591 1592 SOCK_LOCK(so); 1593 mtx_lock(&pcb->pcb_mtx); 1594 1595 error = solisten_proto_check(so); 1596 if (error != 0) 1597 goto out; 1598#if 0 1599 if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) { 1600 error = EDESTADDRREQ; 1601 goto out; 1602 } 1603#endif 1604 solisten_proto(so, backlog); 1605out: 1606 mtx_unlock(&pcb->pcb_mtx); 1607 SOCK_UNLOCK(so); 1608 1609 return (error); 1610} /* ng_btsocket_listen */ 1611 1612/* 1613 * Return peer address for getpeername(2) or for accept(2). For the latter 1614 * case no extra work to do here, socket must be connected and ready. 1615 */ 1616int 1617ng_btsocket_sco_peeraddr(struct socket *so, struct sockaddr *sa) 1618{ 1619 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1620 struct sockaddr_sco *sco = (struct sockaddr_sco *)sa; 1621 1622 if (pcb == NULL) 1623 return (EINVAL); 1624 if (ng_btsocket_sco_node == NULL) 1625 return (EINVAL); 1626 1627 *sco = (struct sockaddr_sco ){ 1628 .sco_len = sizeof(struct sockaddr_sco), 1629 .sco_family = AF_BLUETOOTH, 1630 }; 1631 mtx_lock(&pcb->pcb_mtx); 1632 bcopy(&pcb->dst, &sco->sco_bdaddr, sizeof(sco->sco_bdaddr)); 1633 mtx_unlock(&pcb->pcb_mtx); 1634 1635 return (0); 1636} 1637 1638/* 1639 * Send data to socket 1640 */ 1641 1642int 1643ng_btsocket_sco_send(struct socket *so, int flags, struct mbuf *m, 1644 struct sockaddr *nam, struct mbuf *control, struct thread *td) 1645{ 1646 ng_btsocket_sco_pcb_t *pcb = so2sco_pcb(so); 1647 int error = 0; 1648 1649 if (ng_btsocket_sco_node == NULL) { 1650 error = ENETDOWN; 1651 goto drop; 1652 } 1653 1654 /* Check socket and input */ 1655 if (pcb == NULL || m == NULL || control != NULL) { 1656 error = EINVAL; 1657 goto drop; 1658 } 1659 1660 mtx_lock(&pcb->pcb_mtx); 1661 1662 /* Make sure socket is connected */ 1663 if (pcb->state != NG_BTSOCKET_SCO_OPEN) { 1664 mtx_unlock(&pcb->pcb_mtx); 1665 error = ENOTCONN; 1666 goto drop; 1667 } 1668 1669 /* Check route */ 1670 if (pcb->rt == NULL || 1671 pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1672 mtx_unlock(&pcb->pcb_mtx); 1673 error = ENETDOWN; 1674 goto drop; 1675 } 1676 1677 /* Check packet size */ 1678 if (m->m_pkthdr.len > pcb->rt->pkt_size) { 1679 NG_BTSOCKET_SCO_ERR( 1680"%s: Packet too big, len=%d, pkt_size=%d\n", 1681 __func__, m->m_pkthdr.len, pcb->rt->pkt_size); 1682 1683 mtx_unlock(&pcb->pcb_mtx); 1684 error = EMSGSIZE; 1685 goto drop; 1686 } 1687 1688 /* 1689 * First put packet on socket send queue. Then check if we have 1690 * pending timeout. If we do not have timeout then we must send 1691 * packet and schedule timeout. Otherwise do nothing and wait for 1692 * NGM_HCI_SYNC_CON_QUEUE message. 1693 */ 1694 1695 sbappendrecord(&pcb->so->so_snd, m); 1696 m = NULL; 1697 1698 if (!(pcb->flags & NG_BTSOCKET_SCO_TIMO)) { 1699 error = ng_btsocket_sco_send2(pcb); 1700 if (error == 0) 1701 ng_btsocket_sco_timeout(pcb); 1702 else 1703 sbdroprecord(&pcb->so->so_snd); /* XXX */ 1704 } 1705 1706 mtx_unlock(&pcb->pcb_mtx); 1707drop: 1708 NG_FREE_M(m); /* checks for != NULL */ 1709 NG_FREE_M(control); 1710 1711 return (error); 1712} /* ng_btsocket_sco_send */ 1713 1714/* 1715 * Send first packet in the socket queue to the SCO layer 1716 */ 1717 1718static int 1719ng_btsocket_sco_send2(ng_btsocket_sco_pcb_p pcb) 1720{ 1721 struct mbuf *m = NULL; 1722 ng_hci_scodata_pkt_t *hdr = NULL; 1723 int error = 0; 1724 1725 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1726 1727 while (pcb->rt->pending < pcb->rt->num_pkts && 1728 sbavail(&pcb->so->so_snd) > 0) { 1729 /* Get a copy of the first packet on send queue */ 1730 m = m_dup(pcb->so->so_snd.sb_mb, M_NOWAIT); 1731 if (m == NULL) { 1732 error = ENOBUFS; 1733 break; 1734 } 1735 1736 /* Create SCO packet header */ 1737 M_PREPEND(m, sizeof(*hdr), M_NOWAIT); 1738 if (m != NULL) 1739 if (m->m_len < sizeof(*hdr)) 1740 m = m_pullup(m, sizeof(*hdr)); 1741 1742 if (m == NULL) { 1743 error = ENOBUFS; 1744 break; 1745 } 1746 1747 /* Fill in the header */ 1748 hdr = mtod(m, ng_hci_scodata_pkt_t *); 1749 hdr->type = NG_HCI_SCO_DATA_PKT; 1750 hdr->con_handle = htole16(NG_HCI_MK_CON_HANDLE(pcb->con_handle, 0, 0)); 1751 hdr->length = m->m_pkthdr.len - sizeof(*hdr); 1752 1753 /* Send packet */ 1754 NG_SEND_DATA_ONLY(error, pcb->rt->hook, m); 1755 if (error != 0) 1756 break; 1757 1758 pcb->rt->pending ++; 1759 } 1760 1761 return ((pcb->rt->pending > 0)? 0 : error); 1762} /* ng_btsocket_sco_send2 */ 1763 1764/* 1765 * Get socket address 1766 */ 1767 1768int 1769ng_btsocket_sco_sockaddr(struct socket *so, struct sockaddr *sa) 1770{ 1771 ng_btsocket_sco_pcb_p pcb = so2sco_pcb(so); 1772 struct sockaddr_sco *sco = (struct sockaddr_sco *)sa; 1773 1774 if (pcb == NULL) 1775 return (EINVAL); 1776 if (ng_btsocket_sco_node == NULL) 1777 return (EINVAL); 1778 1779 *sco = (struct sockaddr_sco ){ 1780 .sco_len = sizeof(struct sockaddr_sco), 1781 .sco_family = AF_BLUETOOTH, 1782 }; 1783 mtx_lock(&pcb->pcb_mtx); 1784 bcopy(&pcb->src, &sco->sco_bdaddr, sizeof(sco->sco_bdaddr)); 1785 mtx_unlock(&pcb->pcb_mtx); 1786 1787 return (0); 1788} 1789 1790/***************************************************************************** 1791 ***************************************************************************** 1792 ** Misc. functions 1793 ***************************************************************************** 1794 *****************************************************************************/ 1795 1796/* 1797 * Look for the socket that listens on given bdaddr. 1798 * Returns exact or close match (if any). 1799 * Caller must hold ng_btsocket_sco_sockets_mtx. 1800 * Returns with locked pcb. 1801 */ 1802 1803static ng_btsocket_sco_pcb_p 1804ng_btsocket_sco_pcb_by_addr(bdaddr_p bdaddr) 1805{ 1806 ng_btsocket_sco_pcb_p p = NULL, p1 = NULL; 1807 1808 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1809 1810 LIST_FOREACH(p, &ng_btsocket_sco_sockets, next) { 1811 mtx_lock(&p->pcb_mtx); 1812 1813 if (p->so == NULL || !SOLISTENING(p->so)) { 1814 mtx_unlock(&p->pcb_mtx); 1815 continue; 1816 } 1817 1818 if (bcmp(&p->src, bdaddr, sizeof(p->src)) == 0) 1819 return (p); /* return with locked pcb */ 1820 1821 if (bcmp(&p->src, NG_HCI_BDADDR_ANY, sizeof(p->src)) == 0) 1822 p1 = p; 1823 1824 mtx_unlock(&p->pcb_mtx); 1825 } 1826 1827 if (p1 != NULL) 1828 mtx_lock(&p1->pcb_mtx); 1829 1830 return (p1); 1831} /* ng_btsocket_sco_pcb_by_addr */ 1832 1833/* 1834 * Look for the socket that assigned to given source address and handle. 1835 * Caller must hold ng_btsocket_sco_sockets_mtx. 1836 * Returns with locked pcb. 1837 */ 1838 1839static ng_btsocket_sco_pcb_p 1840ng_btsocket_sco_pcb_by_handle(bdaddr_p src, int con_handle) 1841{ 1842 ng_btsocket_sco_pcb_p p = NULL; 1843 1844 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1845 1846 LIST_FOREACH(p, &ng_btsocket_sco_sockets, next) { 1847 mtx_lock(&p->pcb_mtx); 1848 1849 if (p->con_handle == con_handle && 1850 bcmp(src, &p->src, sizeof(p->src)) == 0) 1851 return (p); /* return with locked pcb */ 1852 1853 mtx_unlock(&p->pcb_mtx); 1854 } 1855 1856 return (NULL); 1857} /* ng_btsocket_sco_pcb_by_handle */ 1858 1859/* 1860 * Look for the socket in CONNECTING state with given source and destination 1861 * addresses. Caller must hold ng_btsocket_sco_sockets_mtx. 1862 * Returns with locked pcb. 1863 */ 1864 1865static ng_btsocket_sco_pcb_p 1866ng_btsocket_sco_pcb_by_addrs(bdaddr_p src, bdaddr_p dst) 1867{ 1868 ng_btsocket_sco_pcb_p p = NULL; 1869 1870 mtx_assert(&ng_btsocket_sco_sockets_mtx, MA_OWNED); 1871 1872 LIST_FOREACH(p, &ng_btsocket_sco_sockets, next) { 1873 mtx_lock(&p->pcb_mtx); 1874 1875 if (p->state == NG_BTSOCKET_SCO_CONNECTING && 1876 bcmp(src, &p->src, sizeof(p->src)) == 0 && 1877 bcmp(dst, &p->dst, sizeof(p->dst)) == 0) 1878 return (p); /* return with locked pcb */ 1879 1880 mtx_unlock(&p->pcb_mtx); 1881 } 1882 1883 return (NULL); 1884} /* ng_btsocket_sco_pcb_by_addrs */ 1885 1886/* 1887 * Set timeout on socket 1888 */ 1889 1890static void 1891ng_btsocket_sco_timeout(ng_btsocket_sco_pcb_p pcb) 1892{ 1893 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1894 1895 if (!(pcb->flags & NG_BTSOCKET_SCO_TIMO)) { 1896 pcb->flags |= NG_BTSOCKET_SCO_TIMO; 1897 callout_reset(&pcb->timo, bluetooth_sco_rtx_timeout(), 1898 ng_btsocket_sco_process_timeout, pcb); 1899 } else 1900 KASSERT(0, 1901("%s: Duplicated socket timeout?!\n", __func__)); 1902} /* ng_btsocket_sco_timeout */ 1903 1904/* 1905 * Unset timeout on socket 1906 */ 1907 1908static void 1909ng_btsocket_sco_untimeout(ng_btsocket_sco_pcb_p pcb) 1910{ 1911 mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1912 1913 if (pcb->flags & NG_BTSOCKET_SCO_TIMO) { 1914 callout_stop(&pcb->timo); 1915 pcb->flags &= ~NG_BTSOCKET_SCO_TIMO; 1916 } else 1917 KASSERT(0, 1918("%s: No socket timeout?!\n", __func__)); 1919} /* ng_btsocket_sco_untimeout */ 1920 1921/* 1922 * Process timeout on socket 1923 */ 1924 1925static void 1926ng_btsocket_sco_process_timeout(void *xpcb) 1927{ 1928 ng_btsocket_sco_pcb_p pcb = (ng_btsocket_sco_pcb_p) xpcb; 1929 1930 mtx_lock(&pcb->pcb_mtx); 1931 1932 pcb->flags &= ~NG_BTSOCKET_SCO_TIMO; 1933 pcb->so->so_error = ETIMEDOUT; 1934 1935 switch (pcb->state) { 1936 case NG_BTSOCKET_SCO_CONNECTING: 1937 /* Connect timeout - close the socket */ 1938 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1939 soisdisconnected(pcb->so); 1940 break; 1941 1942 case NG_BTSOCKET_SCO_OPEN: 1943 /* Send timeout - did not get NGM_HCI_SYNC_CON_QUEUE */ 1944 sbdroprecord(&pcb->so->so_snd); 1945 sowwakeup(pcb->so); 1946 /* XXX FIXME what to do with pcb->rt->pending??? */ 1947 break; 1948 1949 case NG_BTSOCKET_SCO_DISCONNECTING: 1950 /* Disconnect timeout - disconnect the socket anyway */ 1951 pcb->state = NG_BTSOCKET_SCO_CLOSED; 1952 soisdisconnected(pcb->so); 1953 break; 1954 1955 default: 1956 NG_BTSOCKET_SCO_ERR( 1957"%s: Invalid socket state=%d\n", __func__, pcb->state); 1958 break; 1959 } 1960 1961 mtx_unlock(&pcb->pcb_mtx); 1962} /* ng_btsocket_sco_process_timeout */ 1963