ng_btsocket_l2cap.c revision 227293
1107120Sjulian/* 2107120Sjulian * ng_btsocket_l2cap.c 3139823Simp */ 4139823Simp 5139823Simp/*- 6107120Sjulian * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7107120Sjulian * All rights reserved. 8107120Sjulian * 9107120Sjulian * Redistribution and use in source and binary forms, with or without 10107120Sjulian * modification, are permitted provided that the following conditions 11107120Sjulian * are met: 12107120Sjulian * 1. Redistributions of source code must retain the above copyright 13107120Sjulian * notice, this list of conditions and the following disclaimer. 14107120Sjulian * 2. Redistributions in binary form must reproduce the above copyright 15107120Sjulian * notice, this list of conditions and the following disclaimer in the 16107120Sjulian * documentation and/or other materials provided with the distribution. 17107120Sjulian * 18107120Sjulian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19107120Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20107120Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21107120Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22107120Sjulian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23107120Sjulian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24107120Sjulian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25107120Sjulian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26107120Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27107120Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28107120Sjulian * SUCH DAMAGE. 29107120Sjulian * 30121054Semax * $Id: ng_btsocket_l2cap.c,v 1.16 2003/09/14 23:29:06 max Exp $ 31107120Sjulian * $FreeBSD: head/sys/netgraph/bluetooth/socket/ng_btsocket_l2cap.c 227293 2011-11-07 06:44:47Z ed $ 32107120Sjulian */ 33107120Sjulian 34107120Sjulian#include <sys/param.h> 35107120Sjulian#include <sys/systm.h> 36121054Semax#include <sys/bitstring.h> 37107120Sjulian#include <sys/domain.h> 38107120Sjulian#include <sys/endian.h> 39107120Sjulian#include <sys/errno.h> 40107120Sjulian#include <sys/filedesc.h> 41107120Sjulian#include <sys/ioccom.h> 42107120Sjulian#include <sys/kernel.h> 43107120Sjulian#include <sys/lock.h> 44107120Sjulian#include <sys/malloc.h> 45107120Sjulian#include <sys/mbuf.h> 46107120Sjulian#include <sys/mutex.h> 47107120Sjulian#include <sys/protosw.h> 48107120Sjulian#include <sys/queue.h> 49107120Sjulian#include <sys/socket.h> 50107120Sjulian#include <sys/socketvar.h> 51107120Sjulian#include <sys/sysctl.h> 52107120Sjulian#include <sys/taskqueue.h> 53218757Sbz 54218757Sbz#include <net/vnet.h> 55218757Sbz 56107120Sjulian#include <netgraph/ng_message.h> 57107120Sjulian#include <netgraph/netgraph.h> 58128688Semax#include <netgraph/bluetooth/include/ng_bluetooth.h> 59128688Semax#include <netgraph/bluetooth/include/ng_hci.h> 60128688Semax#include <netgraph/bluetooth/include/ng_l2cap.h> 61128688Semax#include <netgraph/bluetooth/include/ng_btsocket.h> 62128688Semax#include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 63107120Sjulian 64107120Sjulian/* MALLOC define */ 65107120Sjulian#ifdef NG_SEPARATE_MALLOC 66227293Sedstatic MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_L2CAP, "netgraph_btsocks_l2cap", 67107120Sjulian "Netgraph Bluetooth L2CAP sockets"); 68107120Sjulian#else 69107120Sjulian#define M_NETGRAPH_BTSOCKET_L2CAP M_NETGRAPH 70107120Sjulian#endif /* NG_SEPARATE_MALLOC */ 71107120Sjulian 72107120Sjulian/* Netgraph node methods */ 73107120Sjulianstatic ng_constructor_t ng_btsocket_l2cap_node_constructor; 74107120Sjulianstatic ng_rcvmsg_t ng_btsocket_l2cap_node_rcvmsg; 75107120Sjulianstatic ng_shutdown_t ng_btsocket_l2cap_node_shutdown; 76107120Sjulianstatic ng_newhook_t ng_btsocket_l2cap_node_newhook; 77107120Sjulianstatic ng_connect_t ng_btsocket_l2cap_node_connect; 78107120Sjulianstatic ng_rcvdata_t ng_btsocket_l2cap_node_rcvdata; 79107120Sjulianstatic ng_disconnect_t ng_btsocket_l2cap_node_disconnect; 80107120Sjulian 81107120Sjulianstatic void ng_btsocket_l2cap_input (void *, int); 82107120Sjulianstatic void ng_btsocket_l2cap_rtclean (void *, int); 83107120Sjulian 84107120Sjulian/* Netgraph type descriptor */ 85107120Sjulianstatic struct ng_type typestruct = { 86129823Sjulian .version = NG_ABI_VERSION, 87129823Sjulian .name = NG_BTSOCKET_L2CAP_NODE_TYPE, 88129823Sjulian .constructor = ng_btsocket_l2cap_node_constructor, 89129823Sjulian .rcvmsg = ng_btsocket_l2cap_node_rcvmsg, 90129823Sjulian .shutdown = ng_btsocket_l2cap_node_shutdown, 91129823Sjulian .newhook = ng_btsocket_l2cap_node_newhook, 92129823Sjulian .connect = ng_btsocket_l2cap_node_connect, 93129823Sjulian .rcvdata = ng_btsocket_l2cap_node_rcvdata, 94129823Sjulian .disconnect = ng_btsocket_l2cap_node_disconnect, 95107120Sjulian}; 96107120Sjulian 97107120Sjulian/* Globals */ 98107120Sjulianextern int ifqmaxlen; 99107120Sjulianstatic u_int32_t ng_btsocket_l2cap_debug_level; 100107120Sjulianstatic node_p ng_btsocket_l2cap_node; 101107120Sjulianstatic struct ng_bt_itemq ng_btsocket_l2cap_queue; 102107120Sjulianstatic struct mtx ng_btsocket_l2cap_queue_mtx; 103107120Sjulianstatic struct task ng_btsocket_l2cap_queue_task; 104107120Sjulianstatic LIST_HEAD(, ng_btsocket_l2cap_pcb) ng_btsocket_l2cap_sockets; 105107120Sjulianstatic struct mtx ng_btsocket_l2cap_sockets_mtx; 106107120Sjulianstatic LIST_HEAD(, ng_btsocket_l2cap_rtentry) ng_btsocket_l2cap_rt; 107107120Sjulianstatic struct mtx ng_btsocket_l2cap_rt_mtx; 108107120Sjulianstatic struct task ng_btsocket_l2cap_rt_task; 109181093Semaxstatic struct timeval ng_btsocket_l2cap_lasttime; 110181093Semaxstatic int ng_btsocket_l2cap_curpps; 111107120Sjulian 112107120Sjulian/* Sysctl tree */ 113107120SjulianSYSCTL_DECL(_net_bluetooth_l2cap_sockets); 114107120SjulianSYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, seq, CTLFLAG_RW, 115107120Sjulian 0, "Bluetooth SEQPACKET L2CAP sockets family"); 116217320SmdfSYSCTL_UINT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, debug_level, 117107120Sjulian CTLFLAG_RW, 118107120Sjulian &ng_btsocket_l2cap_debug_level, NG_BTSOCKET_WARN_LEVEL, 119107120Sjulian "Bluetooth SEQPACKET L2CAP sockets debug level"); 120217320SmdfSYSCTL_UINT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, queue_len, 121107120Sjulian CTLFLAG_RD, 122107120Sjulian &ng_btsocket_l2cap_queue.len, 0, 123107120Sjulian "Bluetooth SEQPACKET L2CAP sockets input queue length"); 124217320SmdfSYSCTL_UINT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, queue_maxlen, 125107120Sjulian CTLFLAG_RD, 126107120Sjulian &ng_btsocket_l2cap_queue.maxlen, 0, 127107120Sjulian "Bluetooth SEQPACKET L2CAP sockets input queue max. length"); 128217320SmdfSYSCTL_UINT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, queue_drops, 129107120Sjulian CTLFLAG_RD, 130107120Sjulian &ng_btsocket_l2cap_queue.drops, 0, 131107120Sjulian "Bluetooth SEQPACKET L2CAP sockets input queue drops"); 132107120Sjulian 133107120Sjulian/* Debug */ 134107120Sjulian#define NG_BTSOCKET_L2CAP_INFO \ 135181093Semax if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_INFO_LEVEL && \ 136181093Semax ppsratecheck(&ng_btsocket_l2cap_lasttime, &ng_btsocket_l2cap_curpps, 1)) \ 137107120Sjulian printf 138107120Sjulian 139107120Sjulian#define NG_BTSOCKET_L2CAP_WARN \ 140181093Semax if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_WARN_LEVEL && \ 141181093Semax ppsratecheck(&ng_btsocket_l2cap_lasttime, &ng_btsocket_l2cap_curpps, 1)) \ 142107120Sjulian printf 143107120Sjulian 144107120Sjulian#define NG_BTSOCKET_L2CAP_ERR \ 145181093Semax if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_ERR_LEVEL && \ 146181093Semax ppsratecheck(&ng_btsocket_l2cap_lasttime, &ng_btsocket_l2cap_curpps, 1)) \ 147107120Sjulian printf 148107120Sjulian 149107120Sjulian#define NG_BTSOCKET_L2CAP_ALERT \ 150181093Semax if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_ALERT_LEVEL && \ 151181093Semax ppsratecheck(&ng_btsocket_l2cap_lasttime, &ng_btsocket_l2cap_curpps, 1)) \ 152107120Sjulian printf 153107120Sjulian 154107120Sjulian/* 155107120Sjulian * Netgraph message processing routines 156107120Sjulian */ 157107120Sjulian 158107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_con_req_rsp 159161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 160107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_con_rsp_rsp 161161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 162107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_con_ind 163161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 164107120Sjulian 165107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_cfg_req_rsp 166161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 167107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp 168161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 169107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_cfg_ind 170161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 171107120Sjulian 172107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_discon_rsp 173161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 174107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_discon_ind 175161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 176107120Sjulian 177107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_write_rsp 178161623Semax (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p); 179107120Sjulian 180107120Sjulian/* 181107120Sjulian * Send L2CA_xxx messages to the lower layer 182107120Sjulian */ 183107120Sjulian 184107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_con_req 185107120Sjulian (ng_btsocket_l2cap_pcb_p); 186107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_con_rsp_req 187107120Sjulian (u_int32_t, ng_btsocket_l2cap_rtentry_p, bdaddr_p, int, int, int); 188107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_cfg_req 189107120Sjulian (ng_btsocket_l2cap_pcb_p); 190107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_cfg_rsp 191107120Sjulian (ng_btsocket_l2cap_pcb_p); 192107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_discon_req 193107120Sjulian (u_int32_t, ng_btsocket_l2cap_pcb_p); 194107120Sjulian 195107120Sjulianstatic int ng_btsocket_l2cap_send2 196107120Sjulian (ng_btsocket_l2cap_pcb_p); 197107120Sjulian 198107120Sjulian/* 199107120Sjulian * Timeout processing routines 200107120Sjulian */ 201107120Sjulian 202107120Sjulianstatic void ng_btsocket_l2cap_timeout (ng_btsocket_l2cap_pcb_p); 203107120Sjulianstatic void ng_btsocket_l2cap_untimeout (ng_btsocket_l2cap_pcb_p); 204107120Sjulianstatic void ng_btsocket_l2cap_process_timeout (void *); 205107120Sjulian 206107120Sjulian/* 207107120Sjulian * Other stuff 208107120Sjulian */ 209107120Sjulian 210107120Sjulianstatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_addr(bdaddr_p, int); 211107120Sjulianstatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_token(u_int32_t); 212107120Sjulianstatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_cid (bdaddr_p, int); 213107120Sjulianstatic int ng_btsocket_l2cap_result2errno(int); 214107120Sjulian 215114878Sjulian#define ng_btsocket_l2cap_wakeup_input_task() \ 216114878Sjulian taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_queue_task) 217114878Sjulian 218114878Sjulian#define ng_btsocket_l2cap_wakeup_route_task() \ 219114878Sjulian taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_rt_task) 220114878Sjulian 221107120Sjulian/***************************************************************************** 222107120Sjulian ***************************************************************************** 223107120Sjulian ** Netgraph node interface 224107120Sjulian ***************************************************************************** 225107120Sjulian *****************************************************************************/ 226107120Sjulian 227107120Sjulian/* 228107120Sjulian * Netgraph node constructor. Do not allow to create node of this type. 229107120Sjulian */ 230107120Sjulian 231107120Sjulianstatic int 232107120Sjulianng_btsocket_l2cap_node_constructor(node_p node) 233107120Sjulian{ 234107120Sjulian return (EINVAL); 235107120Sjulian} /* ng_btsocket_l2cap_node_constructor */ 236107120Sjulian 237107120Sjulian/* 238107120Sjulian * Do local shutdown processing. Let old node go and create new fresh one. 239107120Sjulian */ 240107120Sjulian 241107120Sjulianstatic int 242107120Sjulianng_btsocket_l2cap_node_shutdown(node_p node) 243107120Sjulian{ 244107120Sjulian int error = 0; 245107120Sjulian 246107120Sjulian NG_NODE_UNREF(node); 247107120Sjulian 248107120Sjulian /* Create new node */ 249107120Sjulian error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_node); 250107120Sjulian if (error != 0) { 251107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 252107120Sjulian"%s: Could not create Netgraph node, error=%d\n", __func__, error); 253107120Sjulian 254107120Sjulian ng_btsocket_l2cap_node = NULL; 255107120Sjulian 256107120Sjulian return (error); 257107120Sjulian } 258107120Sjulian 259107120Sjulian error = ng_name_node(ng_btsocket_l2cap_node, 260107120Sjulian NG_BTSOCKET_L2CAP_NODE_TYPE); 261123812Salfred if (error != 0) { 262107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 263107120Sjulian"%s: Could not name Netgraph node, error=%d\n", __func__, error); 264107120Sjulian 265107120Sjulian NG_NODE_UNREF(ng_btsocket_l2cap_node); 266107120Sjulian ng_btsocket_l2cap_node = NULL; 267107120Sjulian 268107120Sjulian return (error); 269107120Sjulian } 270107120Sjulian 271107120Sjulian return (0); 272107120Sjulian} /* ng_btsocket_l2cap_node_shutdown */ 273107120Sjulian 274107120Sjulian/* 275107120Sjulian * We allow any hook to be connected to the node. 276107120Sjulian */ 277107120Sjulian 278107120Sjulianstatic int 279107120Sjulianng_btsocket_l2cap_node_newhook(node_p node, hook_p hook, char const *name) 280107120Sjulian{ 281107120Sjulian return (0); 282107120Sjulian} /* ng_btsocket_l2cap_node_newhook */ 283107120Sjulian 284107120Sjulian/* 285107120Sjulian * Just say "YEP, that's OK by me!" 286107120Sjulian */ 287107120Sjulian 288107120Sjulianstatic int 289107120Sjulianng_btsocket_l2cap_node_connect(hook_p hook) 290107120Sjulian{ 291107120Sjulian NG_HOOK_SET_PRIVATE(hook, NULL); 292107120Sjulian NG_HOOK_REF(hook); /* Keep extra reference to the hook */ 293107120Sjulian 294107120Sjulian#if 0 295107120Sjulian NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook)); 296107120Sjulian NG_HOOK_FORCE_QUEUE(hook); 297107120Sjulian#endif 298107120Sjulian 299107120Sjulian return (0); 300107120Sjulian} /* ng_btsocket_l2cap_node_connect */ 301107120Sjulian 302107120Sjulian/* 303107120Sjulian * Hook disconnection. Schedule route cleanup task 304107120Sjulian */ 305107120Sjulian 306107120Sjulianstatic int 307107120Sjulianng_btsocket_l2cap_node_disconnect(hook_p hook) 308107120Sjulian{ 309107120Sjulian /* 310107120Sjulian * If hook has private information than we must have this hook in 311107120Sjulian * the routing table and must schedule cleaning for the routing table. 312107120Sjulian * Otherwise hook was connected but we never got "hook_info" message, 313107120Sjulian * so we have never added this hook to the routing table and it save 314107120Sjulian * to just delete it. 315107120Sjulian */ 316107120Sjulian 317107120Sjulian if (NG_HOOK_PRIVATE(hook) != NULL) 318114878Sjulian return (ng_btsocket_l2cap_wakeup_route_task()); 319107120Sjulian 320107120Sjulian NG_HOOK_UNREF(hook); /* Remove extra reference */ 321107120Sjulian 322107120Sjulian return (0); 323107120Sjulian} /* ng_btsocket_l2cap_node_disconnect */ 324107120Sjulian 325107120Sjulian/* 326107120Sjulian * Process incoming messages 327107120Sjulian */ 328107120Sjulian 329107120Sjulianstatic int 330107120Sjulianng_btsocket_l2cap_node_rcvmsg(node_p node, item_p item, hook_p hook) 331107120Sjulian{ 332107120Sjulian struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 333107120Sjulian int error = 0; 334107120Sjulian 335107120Sjulian if (msg != NULL && msg->header.typecookie == NGM_L2CAP_COOKIE) { 336107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 337107120Sjulian if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_queue)) { 338107120Sjulian NG_BTSOCKET_L2CAP_ERR( 339107120Sjulian"%s: Input queue is full (msg)\n", __func__); 340107120Sjulian 341107120Sjulian NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_queue); 342107120Sjulian NG_FREE_ITEM(item); 343107120Sjulian error = ENOBUFS; 344107120Sjulian } else { 345107120Sjulian if (hook != NULL) { 346107120Sjulian NG_HOOK_REF(hook); 347107120Sjulian NGI_SET_HOOK(item, hook); 348107120Sjulian } 349107120Sjulian 350107120Sjulian NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_queue, item); 351114878Sjulian error = ng_btsocket_l2cap_wakeup_input_task(); 352107120Sjulian } 353107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 354107120Sjulian } else { 355107120Sjulian NG_FREE_ITEM(item); 356107120Sjulian error = EINVAL; 357107120Sjulian } 358107120Sjulian 359107120Sjulian return (error); 360107120Sjulian} /* ng_btsocket_l2cap_node_rcvmsg */ 361107120Sjulian 362107120Sjulian/* 363107120Sjulian * Receive data on a hook 364107120Sjulian */ 365107120Sjulian 366107120Sjulianstatic int 367107120Sjulianng_btsocket_l2cap_node_rcvdata(hook_p hook, item_p item) 368107120Sjulian{ 369107120Sjulian int error = 0; 370107120Sjulian 371107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 372107120Sjulian if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_queue)) { 373107120Sjulian NG_BTSOCKET_L2CAP_ERR( 374107120Sjulian"%s: Input queue is full (data)\n", __func__); 375107120Sjulian 376107120Sjulian NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_queue); 377107120Sjulian NG_FREE_ITEM(item); 378107120Sjulian error = ENOBUFS; 379107120Sjulian } else { 380107120Sjulian NG_HOOK_REF(hook); 381107120Sjulian NGI_SET_HOOK(item, hook); 382107120Sjulian 383107120Sjulian NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_queue, item); 384114878Sjulian error = ng_btsocket_l2cap_wakeup_input_task(); 385107120Sjulian } 386107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 387107120Sjulian 388107120Sjulian return (error); 389107120Sjulian} /* ng_btsocket_l2cap_node_rcvdata */ 390107120Sjulian 391107120Sjulian/* 392107120Sjulian * Process L2CA_Connect respose. Socket layer must have initiated connection, 393107120Sjulian * so we have to have a socket associated with message token. 394107120Sjulian */ 395107120Sjulian 396107120Sjulianstatic int 397107120Sjulianng_btsocket_l2cap_process_l2ca_con_req_rsp(struct ng_mesg *msg, 398161623Semax ng_btsocket_l2cap_rtentry_p rt) 399107120Sjulian{ 400107120Sjulian ng_l2cap_l2ca_con_op *op = NULL; 401107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 402107120Sjulian int error = 0; 403107120Sjulian 404107120Sjulian if (msg->header.arglen != sizeof(*op)) 405107120Sjulian return (EMSGSIZE); 406107120Sjulian 407107120Sjulian op = (ng_l2cap_l2ca_con_op *)(msg->data); 408107120Sjulian 409114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 410114878Sjulian 411107120Sjulian /* Look for the socket with the token */ 412107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 413114878Sjulian if (pcb == NULL) { 414114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 415107120Sjulian return (ENOENT); 416114878Sjulian } 417107120Sjulian 418107120Sjulian mtx_lock(&pcb->pcb_mtx); 419107120Sjulian 420107120Sjulian NG_BTSOCKET_L2CAP_INFO( 421107120Sjulian"%s: Got L2CA_Connect response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 422107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, status=%d, " \ 423107120Sjulian"state=%d\n", __func__, msg->header.token, 424107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 425107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 426107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 427107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 428107120Sjulian pcb->psm, op->lcid, op->result, op->status, 429107120Sjulian pcb->state); 430107120Sjulian 431107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONNECTING) { 432107120Sjulian mtx_unlock(&pcb->pcb_mtx); 433114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 434114878Sjulian 435107120Sjulian return (ENOENT); 436107120Sjulian } 437107120Sjulian 438107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 439107120Sjulian 440107120Sjulian if (op->result == NG_L2CAP_PENDING) { 441107120Sjulian ng_btsocket_l2cap_timeout(pcb); 442107120Sjulian mtx_unlock(&pcb->pcb_mtx); 443114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 444114878Sjulian 445107120Sjulian return (0); 446107120Sjulian } 447107120Sjulian 448107120Sjulian if (op->result == NG_L2CAP_SUCCESS) { 449107120Sjulian /* 450107120Sjulian * Channel is now open, so update local channel ID and 451107120Sjulian * start configuration process. Source and destination 452107120Sjulian * addresses as well as route must be already set. 453107120Sjulian */ 454107120Sjulian 455107120Sjulian pcb->cid = op->lcid; 456107120Sjulian 457107120Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb); 458107120Sjulian if (error != 0) { 459107120Sjulian /* Send disconnect request with "zero" token */ 460107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 461107120Sjulian 462107120Sjulian /* ... and close the socket */ 463107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 464107120Sjulian soisdisconnected(pcb->so); 465107120Sjulian } else { 466107120Sjulian pcb->cfg_state = NG_BTSOCKET_L2CAP_CFG_IN_SENT; 467107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONFIGURING; 468107120Sjulian 469107120Sjulian ng_btsocket_l2cap_timeout(pcb); 470107120Sjulian } 471107120Sjulian } else { 472107120Sjulian /* 473107120Sjulian * We have failed to open connection, so convert result 474107120Sjulian * code to "errno" code and disconnect the socket. Channel 475107120Sjulian * already has been closed. 476107120Sjulian */ 477107120Sjulian 478107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 479107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 480107120Sjulian soisdisconnected(pcb->so); 481107120Sjulian } 482107120Sjulian 483107120Sjulian mtx_unlock(&pcb->pcb_mtx); 484114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 485107120Sjulian 486107120Sjulian return (error); 487107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_con_req_rsp */ 488107120Sjulian 489107120Sjulian/* 490107120Sjulian * Process L2CA_ConnectRsp response 491107120Sjulian */ 492107120Sjulian 493107120Sjulianstatic int 494107120Sjulianng_btsocket_l2cap_process_l2ca_con_rsp_rsp(struct ng_mesg *msg, 495161623Semax ng_btsocket_l2cap_rtentry_p rt) 496107120Sjulian{ 497107120Sjulian ng_l2cap_l2ca_con_rsp_op *op = NULL; 498107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 499107120Sjulian 500107120Sjulian if (msg->header.arglen != sizeof(*op)) 501107120Sjulian return (EMSGSIZE); 502107120Sjulian 503107120Sjulian op = (ng_l2cap_l2ca_con_rsp_op *)(msg->data); 504107120Sjulian 505114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 506114878Sjulian 507107120Sjulian /* Look for the socket with the token */ 508107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 509114878Sjulian if (pcb == NULL) { 510114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 511107120Sjulian return (ENOENT); 512114878Sjulian } 513107120Sjulian 514107120Sjulian mtx_lock(&pcb->pcb_mtx); 515107120Sjulian 516107120Sjulian NG_BTSOCKET_L2CAP_INFO( 517107120Sjulian"%s: Got L2CA_ConnectRsp response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 518107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d\n", 519107120Sjulian __func__, msg->header.token, 520107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 521107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 522107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 523107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 524107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state); 525107120Sjulian 526107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONNECTING) { 527107120Sjulian mtx_unlock(&pcb->pcb_mtx); 528114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 529114878Sjulian 530107120Sjulian return (ENOENT); 531107120Sjulian } 532107120Sjulian 533107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 534107120Sjulian 535107120Sjulian /* Check the result and disconnect the socket on failure */ 536107120Sjulian if (op->result != NG_L2CAP_SUCCESS) { 537107120Sjulian /* Close the socket - channel already closed */ 538107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 539107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 540107120Sjulian soisdisconnected(pcb->so); 541107120Sjulian } else { 542107120Sjulian /* Move to CONFIGURING state and wait for CONFIG_IND */ 543107120Sjulian pcb->cfg_state = 0; 544107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONFIGURING; 545107120Sjulian ng_btsocket_l2cap_timeout(pcb); 546107120Sjulian } 547107120Sjulian 548107120Sjulian mtx_unlock(&pcb->pcb_mtx); 549114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 550107120Sjulian 551107120Sjulian return (0); 552107120Sjulian} /* ng_btsocket_process_l2ca_con_rsp_rsp */ 553107120Sjulian 554107120Sjulian/* 555107120Sjulian * Process L2CA_Connect indicator. Find socket that listens on address 556107120Sjulian * and PSM. Find exact or closest match. Create new socket and initiate 557107120Sjulian * connection. 558107120Sjulian */ 559107120Sjulian 560107120Sjulianstatic int 561107120Sjulianng_btsocket_l2cap_process_l2ca_con_ind(struct ng_mesg *msg, 562161623Semax ng_btsocket_l2cap_rtentry_p rt) 563107120Sjulian{ 564107120Sjulian ng_l2cap_l2ca_con_ind_ip *ip = NULL; 565107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL, *pcb1 = NULL; 566107120Sjulian int error = 0; 567107120Sjulian u_int32_t token = 0; 568107120Sjulian u_int16_t result = 0; 569107120Sjulian 570107120Sjulian if (msg->header.arglen != sizeof(*ip)) 571107120Sjulian return (EMSGSIZE); 572107120Sjulian 573107120Sjulian ip = (ng_l2cap_l2ca_con_ind_ip *)(msg->data); 574107120Sjulian 575107120Sjulian NG_BTSOCKET_L2CAP_INFO( 576107120Sjulian"%s: Got L2CA_Connect indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 577107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, ident=%d\n", 578107120Sjulian __func__, 579107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 580107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 581107120Sjulian ip->bdaddr.b[5], ip->bdaddr.b[4], ip->bdaddr.b[3], 582107120Sjulian ip->bdaddr.b[2], ip->bdaddr.b[1], ip->bdaddr.b[0], 583107120Sjulian ip->psm, ip->lcid, ip->ident); 584114878Sjulian 585114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 586107120Sjulian 587107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_addr(&rt->src, ip->psm); 588107120Sjulian if (pcb != NULL) { 589107120Sjulian struct socket *so1 = NULL; 590107120Sjulian 591107120Sjulian mtx_lock(&pcb->pcb_mtx); 592107120Sjulian 593107120Sjulian /* 594107120Sjulian * First check the pending connections queue and if we have 595107120Sjulian * space then create new socket and set proper source address. 596107120Sjulian */ 597107120Sjulian 598218757Sbz if (pcb->so->so_qlen <= pcb->so->so_qlimit) { 599218757Sbz CURVNET_SET(pcb->so->so_vnet); 600107120Sjulian so1 = sonewconn(pcb->so, 0); 601218757Sbz CURVNET_RESTORE(); 602218757Sbz } 603107120Sjulian 604107120Sjulian if (so1 == NULL) { 605107120Sjulian result = NG_L2CAP_NO_RESOURCES; 606107120Sjulian goto respond; 607107120Sjulian } 608107120Sjulian 609107120Sjulian /* 610107120Sjulian * If we got here than we have created new socket. So complete 611107120Sjulian * connection. If we we listening on specific address then copy 612107120Sjulian * source address from listening socket, otherwise copy source 613107120Sjulian * address from hook's routing information. 614107120Sjulian */ 615107120Sjulian 616107120Sjulian pcb1 = so2l2cap_pcb(so1); 617107120Sjulian KASSERT((pcb1 != NULL), 618107120Sjulian("%s: pcb1 == NULL\n", __func__)); 619107120Sjulian 620114878Sjulian mtx_lock(&pcb1->pcb_mtx); 621107120Sjulian 622107120Sjulian if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)) != 0) 623107120Sjulian bcopy(&pcb->src, &pcb1->src, sizeof(pcb1->src)); 624107120Sjulian else 625107120Sjulian bcopy(&rt->src, &pcb1->src, sizeof(pcb1->src)); 626107120Sjulian 627107120Sjulian pcb1->flags &= ~NG_BTSOCKET_L2CAP_CLIENT; 628107120Sjulian 629107120Sjulian bcopy(&ip->bdaddr, &pcb1->dst, sizeof(pcb1->dst)); 630107120Sjulian pcb1->psm = ip->psm; 631107120Sjulian pcb1->cid = ip->lcid; 632107120Sjulian pcb1->rt = rt; 633107120Sjulian 634107120Sjulian /* Copy socket settings */ 635107120Sjulian pcb1->imtu = pcb->imtu; 636107120Sjulian bcopy(&pcb->oflow, &pcb1->oflow, sizeof(pcb1->oflow)); 637107120Sjulian pcb1->flush_timo = pcb->flush_timo; 638107120Sjulian 639107120Sjulian token = pcb1->token; 640107120Sjulian } else 641107120Sjulian /* Nobody listens on requested BDADDR/PSM */ 642107120Sjulian result = NG_L2CAP_PSM_NOT_SUPPORTED; 643107120Sjulian 644107120Sjulianrespond: 645107120Sjulian error = ng_btsocket_l2cap_send_l2ca_con_rsp_req(token, rt, 646107120Sjulian &ip->bdaddr, ip->ident, ip->lcid, result); 647107120Sjulian if (pcb1 != NULL) { 648107120Sjulian if (error != 0) { 649107120Sjulian pcb1->so->so_error = error; 650107120Sjulian pcb1->state = NG_BTSOCKET_L2CAP_CLOSED; 651107120Sjulian soisdisconnected(pcb1->so); 652107120Sjulian } else { 653107120Sjulian pcb1->state = NG_BTSOCKET_L2CAP_CONNECTING; 654107120Sjulian soisconnecting(pcb1->so); 655107120Sjulian 656107120Sjulian ng_btsocket_l2cap_timeout(pcb1); 657107120Sjulian } 658107120Sjulian 659107120Sjulian mtx_unlock(&pcb1->pcb_mtx); 660107120Sjulian } 661107120Sjulian 662107120Sjulian if (pcb != NULL) 663107120Sjulian mtx_unlock(&pcb->pcb_mtx); 664107120Sjulian 665114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 666114878Sjulian 667107120Sjulian return (error); 668107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_con_ind */ 669107120Sjulian 670107120Sjulian/* 671107120Sjulian * Process L2CA_Config response 672107120Sjulian */ 673107120Sjulian 674107120Sjulianstatic int 675107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_req_rsp(struct ng_mesg *msg, 676161623Semax ng_btsocket_l2cap_rtentry_p rt) 677107120Sjulian{ 678107120Sjulian ng_l2cap_l2ca_cfg_op *op = NULL; 679107120Sjulian ng_btsocket_l2cap_pcb_p pcb = NULL; 680107120Sjulian 681107120Sjulian if (msg->header.arglen != sizeof(*op)) 682107120Sjulian return (EMSGSIZE); 683107120Sjulian 684107120Sjulian op = (ng_l2cap_l2ca_cfg_op *)(msg->data); 685107120Sjulian 686114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 687114878Sjulian 688107120Sjulian /* 689107120Sjulian * Socket must have issued a Configure request, so we must have a 690107120Sjulian * socket that wants to be configured. Use Netgraph message token 691107120Sjulian * to find it 692107120Sjulian */ 693107120Sjulian 694107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 695107120Sjulian if (pcb == NULL) { 696107120Sjulian /* 697107120Sjulian * XXX FIXME what to do here? We could not find a 698107120Sjulian * socket with requested token. We even can not send 699107120Sjulian * Disconnect, because we do not know channel ID 700107120Sjulian */ 701107120Sjulian 702114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 703107120Sjulian return (ENOENT); 704107120Sjulian } 705107120Sjulian 706107120Sjulian mtx_lock(&pcb->pcb_mtx); 707107120Sjulian 708107120Sjulian NG_BTSOCKET_L2CAP_INFO( 709107120Sjulian"%s: Got L2CA_Config response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 710107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d, " \ 711107120Sjulian"cfg_state=%x\n", 712107120Sjulian __func__, msg->header.token, 713107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 714107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 715107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 716107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 717107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state, pcb->cfg_state); 718107120Sjulian 719107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 720107120Sjulian mtx_unlock(&pcb->pcb_mtx); 721114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 722114878Sjulian 723107120Sjulian return (ENOENT); 724107120Sjulian } 725107120Sjulian 726107120Sjulian if (op->result == NG_L2CAP_SUCCESS) { 727107120Sjulian /* 728107120Sjulian * XXX FIXME Actually set flush and link timeout. 729107120Sjulian * Set QoS here if required. Resolve conficts (flush_timo). 730107120Sjulian * Save incoming MTU (peer's outgoing MTU) and outgoing flow 731107120Sjulian * spec. 732107120Sjulian */ 733107120Sjulian 734107120Sjulian pcb->imtu = op->imtu; 735107120Sjulian bcopy(&op->oflow, &pcb->oflow, sizeof(pcb->oflow)); 736107120Sjulian pcb->flush_timo = op->flush_timo; 737107120Sjulian 738107120Sjulian /* 739107120Sjulian * We have configured incoming side, so record it and check 740107120Sjulian * if configuration is complete. If complete then mark socket 741107120Sjulian * as connected, otherwise wait for the peer. 742107120Sjulian */ 743107120Sjulian 744107120Sjulian pcb->cfg_state &= ~NG_BTSOCKET_L2CAP_CFG_IN_SENT; 745107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_IN; 746107120Sjulian 747107120Sjulian if (pcb->cfg_state == NG_BTSOCKET_L2CAP_CFG_BOTH) { 748107120Sjulian /* Configuration complete - mark socket as open */ 749107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 750107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_OPEN; 751107120Sjulian soisconnected(pcb->so); 752107120Sjulian } 753107120Sjulian } else { 754107120Sjulian /* 755107120Sjulian * Something went wrong. Could be unacceptable parameters, 756107120Sjulian * reject or unknown option. That's too bad, but we will 757107120Sjulian * not negotiate. Send Disconnect and close the channel. 758107120Sjulian */ 759107120Sjulian 760107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 761107120Sjulian 762107120Sjulian switch (op->result) { 763107120Sjulian case NG_L2CAP_UNACCEPTABLE_PARAMS: 764107120Sjulian case NG_L2CAP_UNKNOWN_OPTION: 765107120Sjulian pcb->so->so_error = EINVAL; 766107120Sjulian break; 767107120Sjulian 768107120Sjulian default: 769107120Sjulian pcb->so->so_error = ECONNRESET; 770107120Sjulian break; 771107120Sjulian } 772107120Sjulian 773107120Sjulian /* Send disconnect with "zero" token */ 774107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 775107120Sjulian 776107120Sjulian /* ... and close the socket */ 777107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 778107120Sjulian soisdisconnected(pcb->so); 779107120Sjulian } 780107120Sjulian 781107120Sjulian mtx_unlock(&pcb->pcb_mtx); 782114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 783107120Sjulian 784107120Sjulian return (0); 785107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_cfg_req_rsp */ 786107120Sjulian 787107120Sjulian/* 788107120Sjulian * Process L2CA_ConfigRsp response 789107120Sjulian */ 790107120Sjulian 791107120Sjulianstatic int 792107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp(struct ng_mesg *msg, 793161623Semax ng_btsocket_l2cap_rtentry_p rt) 794107120Sjulian{ 795107120Sjulian ng_l2cap_l2ca_cfg_rsp_op *op = NULL; 796107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 797107120Sjulian int error = 0; 798107120Sjulian 799107120Sjulian if (msg->header.arglen != sizeof(*op)) 800107120Sjulian return (EMSGSIZE); 801107120Sjulian 802107120Sjulian op = (ng_l2cap_l2ca_cfg_rsp_op *)(msg->data); 803107120Sjulian 804114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 805114878Sjulian 806107120Sjulian /* Look for the socket with the token */ 807107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 808114878Sjulian if (pcb == NULL) { 809114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 810107120Sjulian return (ENOENT); 811114878Sjulian } 812107120Sjulian 813107120Sjulian mtx_lock(&pcb->pcb_mtx); 814107120Sjulian 815107120Sjulian NG_BTSOCKET_L2CAP_INFO( 816107120Sjulian"%s: Got L2CA_ConfigRsp response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 817107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d, " \ 818107120Sjulian"cfg_state=%x\n", 819107120Sjulian __func__, msg->header.token, 820107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 821107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 822107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 823107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 824107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state, pcb->cfg_state); 825107120Sjulian 826107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 827107120Sjulian mtx_unlock(&pcb->pcb_mtx); 828114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 829114878Sjulian 830107120Sjulian return (ENOENT); 831107120Sjulian } 832107120Sjulian 833107120Sjulian /* Check the result and disconnect socket of failure */ 834107120Sjulian if (op->result != NG_L2CAP_SUCCESS) 835107120Sjulian goto disconnect; 836107120Sjulian 837107120Sjulian /* 838107120Sjulian * Now we done with remote side configuration. Configure local 839107120Sjulian * side if we have not done it yet. 840107120Sjulian */ 841107120Sjulian 842107120Sjulian pcb->cfg_state &= ~NG_BTSOCKET_L2CAP_CFG_OUT_SENT; 843107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_OUT; 844107120Sjulian 845107120Sjulian if (pcb->cfg_state == NG_BTSOCKET_L2CAP_CFG_BOTH) { 846107120Sjulian /* Configuration complete - mask socket as open */ 847107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 848107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_OPEN; 849107120Sjulian soisconnected(pcb->so); 850107120Sjulian } else { 851107120Sjulian if (!(pcb->cfg_state & NG_BTSOCKET_L2CAP_CFG_IN_SENT)) { 852107120Sjulian /* Send L2CA_Config request - incoming path */ 853107120Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb); 854107120Sjulian if (error != 0) 855107120Sjulian goto disconnect; 856107120Sjulian 857107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_IN_SENT; 858107120Sjulian } 859107120Sjulian } 860107120Sjulian 861107120Sjulian mtx_unlock(&pcb->pcb_mtx); 862114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 863107120Sjulian 864107120Sjulian return (error); 865107120Sjulian 866107120Sjuliandisconnect: 867107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 868107120Sjulian 869107120Sjulian /* Send disconnect with "zero" token */ 870107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 871107120Sjulian 872107120Sjulian /* ... and close the socket */ 873107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 874107120Sjulian soisdisconnected(pcb->so); 875107120Sjulian 876107120Sjulian mtx_unlock(&pcb->pcb_mtx); 877114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 878107120Sjulian 879107120Sjulian return (error); 880107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp */ 881107120Sjulian 882107120Sjulian/* 883107120Sjulian * Process L2CA_Config indicator 884107120Sjulian */ 885107120Sjulian 886107120Sjulianstatic int 887107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_ind(struct ng_mesg *msg, 888161623Semax ng_btsocket_l2cap_rtentry_p rt) 889107120Sjulian{ 890107120Sjulian ng_l2cap_l2ca_cfg_ind_ip *ip = NULL; 891107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 892107120Sjulian int error = 0; 893107120Sjulian 894107120Sjulian if (msg->header.arglen != sizeof(*ip)) 895107120Sjulian return (EMSGSIZE); 896107120Sjulian 897107120Sjulian ip = (ng_l2cap_l2ca_cfg_ind_ip *)(msg->data); 898107120Sjulian 899114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 900114878Sjulian 901107120Sjulian /* Check for the open socket that has given channel ID */ 902107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, ip->lcid); 903114878Sjulian if (pcb == NULL) { 904114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 905107120Sjulian return (ENOENT); 906114878Sjulian } 907107120Sjulian 908107120Sjulian mtx_lock(&pcb->pcb_mtx); 909107120Sjulian 910107120Sjulian NG_BTSOCKET_L2CAP_INFO( 911107120Sjulian"%s: Got L2CA_Config indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 912107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, state=%d, cfg_state=%x\n", 913107120Sjulian __func__, 914107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 915107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 916107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 917107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 918107120Sjulian pcb->psm, pcb->cid, pcb->state, pcb->cfg_state); 919107120Sjulian 920107120Sjulian /* XXX FIXME re-configuration on open socket */ 921107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 922107120Sjulian mtx_unlock(&pcb->pcb_mtx); 923114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 924114878Sjulian 925107120Sjulian return (ENOENT); 926107120Sjulian } 927107120Sjulian 928107120Sjulian /* 929107120Sjulian * XXX FIXME Actually set flush and link timeout. Set QoS here if 930107120Sjulian * required. Resolve conficts (flush_timo). Note outgoing MTU (peer's 931107120Sjulian * incoming MTU) and incoming flow spec. 932107120Sjulian */ 933107120Sjulian 934107120Sjulian pcb->omtu = ip->omtu; 935107120Sjulian bcopy(&ip->iflow, &pcb->iflow, sizeof(pcb->iflow)); 936107120Sjulian pcb->flush_timo = ip->flush_timo; 937107120Sjulian 938107120Sjulian /* 939107120Sjulian * Send L2CA_Config response to our peer and check for the errors, 940107120Sjulian * if any send disconnect to close the channel. 941107120Sjulian */ 942107120Sjulian 943114878Sjulian if (!(pcb->cfg_state & NG_BTSOCKET_L2CAP_CFG_OUT_SENT)) { 944114878Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_rsp(pcb); 945114878Sjulian if (error != 0) { 946114878Sjulian ng_btsocket_l2cap_untimeout(pcb); 947107120Sjulian 948114878Sjulian pcb->so->so_error = error; 949107120Sjulian 950114878Sjulian /* Send disconnect with "zero" token */ 951114878Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 952107120Sjulian 953114878Sjulian /* ... and close the socket */ 954114878Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 955114878Sjulian soisdisconnected(pcb->so); 956114878Sjulian } else 957114878Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_OUT_SENT; 958107120Sjulian } 959107120Sjulian 960107120Sjulian mtx_unlock(&pcb->pcb_mtx); 961114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 962107120Sjulian 963107120Sjulian return (error); 964107120Sjulian} /* ng_btsocket_l2cap_process_l2cap_cfg_ind */ 965107120Sjulian 966107120Sjulian/* 967107120Sjulian * Process L2CA_Disconnect response 968107120Sjulian */ 969107120Sjulian 970107120Sjulianstatic int 971107120Sjulianng_btsocket_l2cap_process_l2ca_discon_rsp(struct ng_mesg *msg, 972161623Semax ng_btsocket_l2cap_rtentry_p rt) 973107120Sjulian{ 974107120Sjulian ng_l2cap_l2ca_discon_op *op = NULL; 975107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 976107120Sjulian 977107120Sjulian /* Check message */ 978107120Sjulian if (msg->header.arglen != sizeof(*op)) 979107120Sjulian return (EMSGSIZE); 980107120Sjulian 981107120Sjulian op = (ng_l2cap_l2ca_discon_op *)(msg->data); 982107120Sjulian 983114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 984114878Sjulian 985107120Sjulian /* 986107120Sjulian * Socket layer must have issued L2CA_Disconnect request, so there 987107120Sjulian * must be a socket that wants to be disconnected. Use Netgraph 988107120Sjulian * message token to find it. 989107120Sjulian */ 990107120Sjulian 991107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 992114878Sjulian if (pcb == NULL) { 993114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 994107120Sjulian return (0); 995114878Sjulian } 996107120Sjulian 997107120Sjulian mtx_lock(&pcb->pcb_mtx); 998107120Sjulian 999107120Sjulian /* XXX Close socket no matter what op->result says */ 1000107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 1001107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1002107120Sjulian"%s: Got L2CA_Disconnect response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1003107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d\n", 1004107120Sjulian __func__, msg->header.token, 1005107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1006107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1007107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1008107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1009107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state); 1010107120Sjulian 1011107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1012107120Sjulian 1013107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1014107120Sjulian soisdisconnected(pcb->so); 1015107120Sjulian } 1016107120Sjulian 1017107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1018114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1019107120Sjulian 1020107120Sjulian return (0); 1021107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_discon_rsp */ 1022107120Sjulian 1023107120Sjulian/* 1024107120Sjulian * Process L2CA_Disconnect indicator 1025107120Sjulian */ 1026107120Sjulian 1027107120Sjulianstatic int 1028107120Sjulianng_btsocket_l2cap_process_l2ca_discon_ind(struct ng_mesg *msg, 1029161623Semax ng_btsocket_l2cap_rtentry_p rt) 1030107120Sjulian{ 1031107120Sjulian ng_l2cap_l2ca_discon_ind_ip *ip = NULL; 1032107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1033107120Sjulian 1034107120Sjulian /* Check message */ 1035107120Sjulian if (msg->header.arglen != sizeof(*ip)) 1036107120Sjulian return (EMSGSIZE); 1037107120Sjulian 1038107120Sjulian ip = (ng_l2cap_l2ca_discon_ind_ip *)(msg->data); 1039107120Sjulian 1040114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1041114878Sjulian 1042107120Sjulian /* Look for the socket with given channel ID */ 1043107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, ip->lcid); 1044114878Sjulian if (pcb == NULL) { 1045114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1046107120Sjulian return (0); 1047114878Sjulian } 1048107120Sjulian 1049107120Sjulian /* 1050107120Sjulian * Channel has already been destroyed, so disconnect the socket 1051107120Sjulian * and be done with it. If there was any pending request we can 1052107120Sjulian * not do anything here anyway. 1053107120Sjulian */ 1054107120Sjulian 1055107120Sjulian mtx_lock(&pcb->pcb_mtx); 1056107120Sjulian 1057107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1058107120Sjulian"%s: Got L2CA_Disconnect indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1059107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, state=%d\n", 1060107120Sjulian __func__, 1061107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1062107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1063107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1064107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1065107120Sjulian pcb->psm, pcb->cid, pcb->state); 1066107120Sjulian 1067107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 1068107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1069107120Sjulian 1070107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1071107120Sjulian soisdisconnected(pcb->so); 1072107120Sjulian 1073107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1074114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1075107120Sjulian 1076107120Sjulian return (0); 1077107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_discon_ind */ 1078107120Sjulian 1079107120Sjulian/* 1080107120Sjulian * Process L2CA_Write response 1081107120Sjulian */ 1082107120Sjulian 1083107120Sjulianstatic int 1084107120Sjulianng_btsocket_l2cap_process_l2ca_write_rsp(struct ng_mesg *msg, 1085161623Semax ng_btsocket_l2cap_rtentry_p rt) 1086107120Sjulian{ 1087107120Sjulian ng_l2cap_l2ca_write_op *op = NULL; 1088107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1089107120Sjulian 1090107120Sjulian /* Check message */ 1091107120Sjulian if (msg->header.arglen != sizeof(*op)) 1092107120Sjulian return (EMSGSIZE); 1093107120Sjulian 1094107120Sjulian op = (ng_l2cap_l2ca_write_op *)(msg->data); 1095107120Sjulian 1096114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1097114878Sjulian 1098107120Sjulian /* Look for the socket with given token */ 1099107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 1100114878Sjulian if (pcb == NULL) { 1101114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1102107120Sjulian return (ENOENT); 1103114878Sjulian } 1104107120Sjulian 1105107120Sjulian mtx_lock(&pcb->pcb_mtx); 1106107120Sjulian 1107107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1108107120Sjulian"%s: Got L2CA_Write response, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1109107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, length=%d, " \ 1110107120Sjulian"state=%d\n", __func__, 1111107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1112107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1113107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1114107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1115107120Sjulian pcb->psm, pcb->cid, op->result, op->length, 1116107120Sjulian pcb->state); 1117107120Sjulian 1118107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 1119107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1120114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1121114878Sjulian 1122107120Sjulian return (ENOENT); 1123107120Sjulian } 1124107120Sjulian 1125107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1126107120Sjulian 1127107120Sjulian /* 1128107120Sjulian * Check if we have more data to send 1129107120Sjulian */ 1130107120Sjulian 1131107120Sjulian sbdroprecord(&pcb->so->so_snd); 1132107120Sjulian if (pcb->so->so_snd.sb_cc > 0) { 1133107120Sjulian if (ng_btsocket_l2cap_send2(pcb) == 0) 1134107120Sjulian ng_btsocket_l2cap_timeout(pcb); 1135107120Sjulian else 1136107120Sjulian sbdroprecord(&pcb->so->so_snd); /* XXX */ 1137107120Sjulian } 1138107120Sjulian 1139107120Sjulian /* 1140107120Sjulian * Now set the result, drop packet from the socket send queue and 1141107120Sjulian * ask for more (wakeup sender) 1142107120Sjulian */ 1143107120Sjulian 1144107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 1145107120Sjulian sowwakeup(pcb->so); 1146107120Sjulian 1147107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1148114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1149107120Sjulian 1150107120Sjulian return (0); 1151107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_write_rsp */ 1152107120Sjulian 1153107120Sjulian/* 1154107120Sjulian * Send L2CA_Connect request 1155107120Sjulian */ 1156107120Sjulian 1157107120Sjulianstatic int 1158107120Sjulianng_btsocket_l2cap_send_l2ca_con_req(ng_btsocket_l2cap_pcb_p pcb) 1159107120Sjulian{ 1160107120Sjulian struct ng_mesg *msg = NULL; 1161107120Sjulian ng_l2cap_l2ca_con_ip *ip = NULL; 1162107120Sjulian int error = 0; 1163107120Sjulian 1164107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1165107120Sjulian 1166107120Sjulian if (pcb->rt == NULL || 1167107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1168107120Sjulian return (ENETDOWN); 1169107120Sjulian 1170107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CON, 1171107120Sjulian sizeof(*ip), M_NOWAIT); 1172107120Sjulian if (msg == NULL) 1173107120Sjulian return (ENOMEM); 1174107120Sjulian 1175107120Sjulian msg->header.token = pcb->token; 1176107120Sjulian 1177107120Sjulian ip = (ng_l2cap_l2ca_con_ip *)(msg->data); 1178107120Sjulian bcopy(&pcb->dst, &ip->bdaddr, sizeof(ip->bdaddr)); 1179107120Sjulian ip->psm = pcb->psm; 1180107120Sjulian 1181123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1182107120Sjulian 1183107120Sjulian return (error); 1184107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_con_req */ 1185107120Sjulian 1186107120Sjulian/* 1187107120Sjulian * Send L2CA_Connect response 1188107120Sjulian */ 1189107120Sjulian 1190107120Sjulianstatic int 1191107120Sjulianng_btsocket_l2cap_send_l2ca_con_rsp_req(u_int32_t token, 1192107120Sjulian ng_btsocket_l2cap_rtentry_p rt, bdaddr_p dst, int ident, 1193107120Sjulian int lcid, int result) 1194107120Sjulian{ 1195107120Sjulian struct ng_mesg *msg = NULL; 1196107120Sjulian ng_l2cap_l2ca_con_rsp_ip *ip = NULL; 1197107120Sjulian int error = 0; 1198107120Sjulian 1199107120Sjulian if (rt == NULL || rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 1200107120Sjulian return (ENETDOWN); 1201107120Sjulian 1202107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CON_RSP, 1203107120Sjulian sizeof(*ip), M_NOWAIT); 1204107120Sjulian if (msg == NULL) 1205107120Sjulian return (ENOMEM); 1206107120Sjulian 1207107120Sjulian msg->header.token = token; 1208107120Sjulian 1209107120Sjulian ip = (ng_l2cap_l2ca_con_rsp_ip *)(msg->data); 1210107120Sjulian bcopy(dst, &ip->bdaddr, sizeof(ip->bdaddr)); 1211107120Sjulian ip->ident = ident; 1212107120Sjulian ip->lcid = lcid; 1213107120Sjulian ip->result = result; 1214107120Sjulian ip->status = 0; 1215107120Sjulian 1216123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg, rt->hook, 0); 1217107120Sjulian 1218107120Sjulian return (error); 1219107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_con_rsp_req */ 1220107120Sjulian 1221107120Sjulian/* 1222107120Sjulian * Send L2CA_Config request 1223107120Sjulian */ 1224107120Sjulian 1225107120Sjulianstatic int 1226107120Sjulianng_btsocket_l2cap_send_l2ca_cfg_req(ng_btsocket_l2cap_pcb_p pcb) 1227107120Sjulian{ 1228107120Sjulian struct ng_mesg *msg = NULL; 1229107120Sjulian ng_l2cap_l2ca_cfg_ip *ip = NULL; 1230107120Sjulian int error = 0; 1231107120Sjulian 1232107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1233107120Sjulian 1234107120Sjulian if (pcb->rt == NULL || 1235107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1236107120Sjulian return (ENETDOWN); 1237107120Sjulian 1238107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CFG, 1239107120Sjulian sizeof(*ip), M_NOWAIT); 1240107120Sjulian if (msg == NULL) 1241107120Sjulian return (ENOMEM); 1242107120Sjulian 1243107120Sjulian msg->header.token = pcb->token; 1244107120Sjulian 1245107120Sjulian ip = (ng_l2cap_l2ca_cfg_ip *)(msg->data); 1246107120Sjulian ip->lcid = pcb->cid; 1247107120Sjulian ip->imtu = pcb->imtu; 1248107120Sjulian bcopy(&pcb->oflow, &ip->oflow, sizeof(ip->oflow)); 1249107120Sjulian ip->flush_timo = pcb->flush_timo; 1250107120Sjulian ip->link_timo = pcb->link_timo; 1251107120Sjulian 1252123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1253107120Sjulian 1254107120Sjulian return (error); 1255107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_cfg_req */ 1256107120Sjulian 1257107120Sjulian/* 1258107120Sjulian * Send L2CA_Config response 1259107120Sjulian */ 1260107120Sjulian 1261107120Sjulianstatic int 1262107120Sjulianng_btsocket_l2cap_send_l2ca_cfg_rsp(ng_btsocket_l2cap_pcb_p pcb) 1263107120Sjulian{ 1264107120Sjulian struct ng_mesg *msg = NULL; 1265107120Sjulian ng_l2cap_l2ca_cfg_rsp_ip *ip = NULL; 1266107120Sjulian int error = 0; 1267107120Sjulian 1268107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1269107120Sjulian 1270107120Sjulian if (pcb->rt == NULL || 1271107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1272107120Sjulian return (ENETDOWN); 1273107120Sjulian 1274107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CFG_RSP, 1275107120Sjulian sizeof(*ip), M_NOWAIT); 1276107120Sjulian if (msg == NULL) 1277107120Sjulian return (ENOMEM); 1278107120Sjulian 1279107120Sjulian msg->header.token = pcb->token; 1280107120Sjulian 1281107120Sjulian ip = (ng_l2cap_l2ca_cfg_rsp_ip *)(msg->data); 1282107120Sjulian ip->lcid = pcb->cid; 1283107120Sjulian ip->omtu = pcb->omtu; 1284107120Sjulian bcopy(&pcb->iflow, &ip->iflow, sizeof(ip->iflow)); 1285107120Sjulian 1286123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg, pcb->rt->hook, 0); 1287107120Sjulian 1288107120Sjulian return (error); 1289107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_cfg_rsp */ 1290107120Sjulian 1291107120Sjulian/* 1292107120Sjulian * Send L2CA_Disconnect request 1293107120Sjulian */ 1294107120Sjulian 1295107120Sjulianstatic int 1296107120Sjulianng_btsocket_l2cap_send_l2ca_discon_req(u_int32_t token, 1297107120Sjulian ng_btsocket_l2cap_pcb_p pcb) 1298107120Sjulian{ 1299107120Sjulian struct ng_mesg *msg = NULL; 1300107120Sjulian ng_l2cap_l2ca_discon_ip *ip = NULL; 1301107120Sjulian int error = 0; 1302107120Sjulian 1303107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1304107120Sjulian 1305107120Sjulian if (pcb->rt == NULL || 1306107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1307107120Sjulian return (ENETDOWN); 1308107120Sjulian 1309107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_DISCON, 1310107120Sjulian sizeof(*ip), M_NOWAIT); 1311107120Sjulian if (msg == NULL) 1312107120Sjulian return (ENOMEM); 1313107120Sjulian 1314107120Sjulian msg->header.token = token; 1315107120Sjulian 1316107120Sjulian ip = (ng_l2cap_l2ca_discon_ip *)(msg->data); 1317107120Sjulian ip->lcid = pcb->cid; 1318107120Sjulian 1319123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1320107120Sjulian 1321107120Sjulian return (error); 1322107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_discon_req */ 1323107120Sjulian 1324107120Sjulian/***************************************************************************** 1325107120Sjulian ***************************************************************************** 1326107120Sjulian ** Socket interface 1327107120Sjulian ***************************************************************************** 1328107120Sjulian *****************************************************************************/ 1329107120Sjulian 1330107120Sjulian/* 1331107120Sjulian * L2CAP sockets data input routine 1332107120Sjulian */ 1333107120Sjulian 1334107120Sjulianstatic void 1335107120Sjulianng_btsocket_l2cap_data_input(struct mbuf *m, hook_p hook) 1336107120Sjulian{ 1337107120Sjulian ng_l2cap_hdr_t *hdr = NULL; 1338107120Sjulian ng_l2cap_clt_hdr_t *clt_hdr = NULL; 1339107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1340107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 1341107120Sjulian 1342107120Sjulian if (hook == NULL) { 1343107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1344107120Sjulian"%s: Invalid source hook for L2CAP data packet\n", __func__); 1345107120Sjulian goto drop; 1346107120Sjulian } 1347107120Sjulian 1348107120Sjulian rt = (ng_btsocket_l2cap_rtentry_t *) NG_HOOK_PRIVATE(hook); 1349107120Sjulian if (rt == NULL) { 1350107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1351107120Sjulian"%s: Could not find out source bdaddr for L2CAP data packet\n", __func__); 1352107120Sjulian goto drop; 1353107120Sjulian } 1354107120Sjulian 1355107120Sjulian /* Make sure we can access header */ 1356107120Sjulian if (m->m_pkthdr.len < sizeof(*hdr)) { 1357107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1358107120Sjulian"%s: L2CAP data packet too small, len=%d\n", __func__, m->m_pkthdr.len); 1359107120Sjulian goto drop; 1360107120Sjulian } 1361107120Sjulian 1362107120Sjulian if (m->m_len < sizeof(*hdr)) { 1363107120Sjulian m = m_pullup(m, sizeof(*hdr)); 1364107120Sjulian if (m == NULL) 1365107120Sjulian goto drop; 1366107120Sjulian } 1367107120Sjulian 1368107120Sjulian /* Strip L2CAP packet header and verify packet length */ 1369107120Sjulian hdr = mtod(m, ng_l2cap_hdr_t *); 1370107120Sjulian m_adj(m, sizeof(*hdr)); 1371107120Sjulian 1372107120Sjulian if (hdr->length != m->m_pkthdr.len) { 1373107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1374107120Sjulian"%s: Bad L2CAP data packet length, len=%d, length=%d\n", 1375107120Sjulian __func__, m->m_pkthdr.len, hdr->length); 1376107120Sjulian goto drop; 1377107120Sjulian } 1378107120Sjulian 1379107120Sjulian /* 1380107120Sjulian * Now process packet. Two cases: 1381107120Sjulian * 1382107120Sjulian * 1) Normal packet (cid != 2) then find connected socket and append 1383107120Sjulian * mbuf to the socket queue. Wakeup socket. 1384107120Sjulian * 1385107120Sjulian * 2) Broadcast packet (cid == 2) then find all sockets that connected 1386107120Sjulian * to the given PSM and have SO_BROADCAST bit set and append mbuf 1387107120Sjulian * to the socket queue. Wakeup socket. 1388107120Sjulian */ 1389107120Sjulian 1390107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1391114878Sjulian"%s: Received L2CAP data packet: src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1392107120Sjulian"dcid=%d, length=%d\n", 1393107120Sjulian __func__, 1394107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1395107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1396107120Sjulian hdr->dcid, hdr->length); 1397107120Sjulian 1398121054Semax if (hdr->dcid >= NG_L2CAP_FIRST_CID) { 1399114878Sjulian 1400114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1401114878Sjulian 1402107120Sjulian /* Normal packet: find connected socket */ 1403107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, hdr->dcid); 1404114878Sjulian if (pcb == NULL) { 1405114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1406107120Sjulian goto drop; 1407114878Sjulian } 1408107120Sjulian 1409107120Sjulian mtx_lock(&pcb->pcb_mtx); 1410107120Sjulian 1411107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 1412107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1413107120Sjulian"%s: No connected socket found, src bdaddr=%x:%x:%x:%x:%x:%x, dcid=%d, " \ 1414107120Sjulian"state=%d\n", __func__, 1415107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1416107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1417107120Sjulian hdr->dcid, pcb->state); 1418107120Sjulian 1419107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1420114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1421107120Sjulian goto drop; 1422107120Sjulian } 1423107120Sjulian 1424107120Sjulian /* Check packet size against socket's incoming MTU */ 1425107120Sjulian if (hdr->length > pcb->imtu) { 1426107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1427107120Sjulian"%s: L2CAP data packet too big, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1428107120Sjulian"dcid=%d, length=%d, imtu=%d\n", 1429107120Sjulian __func__, 1430107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1431107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1432107120Sjulian hdr->dcid, hdr->length, pcb->imtu); 1433107120Sjulian 1434107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1435114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1436107120Sjulian goto drop; 1437107120Sjulian } 1438107120Sjulian 1439107120Sjulian /* Check if we have enough space in socket receive queue */ 1440107120Sjulian if (m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) { 1441107120Sjulian 1442107120Sjulian /* 1443107120Sjulian * This is really bad. Receive queue on socket does 1444107120Sjulian * not have enough space for the packet. We do not 1445107120Sjulian * have any other choice but drop the packet. L2CAP 1446107120Sjulian * does not provide any flow control. 1447107120Sjulian */ 1448107120Sjulian 1449107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1450107120Sjulian"%s: Not enough space in socket receive queue. Dropping L2CAP data packet, " \ 1451107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, dcid=%d, len=%d, space=%ld\n", 1452107120Sjulian __func__, 1453107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1454107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1455107120Sjulian hdr->dcid, m->m_pkthdr.len, 1456107120Sjulian sbspace(&pcb->so->so_rcv)); 1457107120Sjulian 1458107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1459114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1460107120Sjulian goto drop; 1461107120Sjulian } 1462107120Sjulian 1463107120Sjulian /* Append packet to the socket receive queue and wakeup */ 1464107120Sjulian sbappendrecord(&pcb->so->so_rcv, m); 1465107120Sjulian m = NULL; 1466107120Sjulian 1467107120Sjulian sorwakeup(pcb->so); 1468114878Sjulian 1469107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1470114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1471114878Sjulian } else if (hdr->dcid == NG_L2CAP_CLT_CID) { 1472107120Sjulian /* Broadcast packet: give packet to all sockets */ 1473107120Sjulian 1474107120Sjulian /* Check packet size against connectionless MTU */ 1475107120Sjulian if (hdr->length > NG_L2CAP_MTU_DEFAULT) { 1476107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1477107120Sjulian"%s: Connectionless L2CAP data packet too big, " \ 1478107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, length=%d\n", 1479107120Sjulian __func__, 1480107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1481107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1482107120Sjulian hdr->length); 1483107120Sjulian goto drop; 1484107120Sjulian } 1485107120Sjulian 1486107120Sjulian /* Make sure we can access connectionless header */ 1487107120Sjulian if (m->m_pkthdr.len < sizeof(*clt_hdr)) { 1488107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1489107120Sjulian"%s: Can not get L2CAP connectionless packet header, " \ 1490107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, length=%d\n", 1491107120Sjulian __func__, 1492107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1493107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1494107120Sjulian hdr->length); 1495107120Sjulian goto drop; 1496107120Sjulian } 1497107120Sjulian 1498107120Sjulian if (m->m_len < sizeof(*clt_hdr)) { 1499107120Sjulian m = m_pullup(m, sizeof(*clt_hdr)); 1500107120Sjulian if (m == NULL) 1501107120Sjulian goto drop; 1502107120Sjulian } 1503107120Sjulian 1504107120Sjulian /* Strip connectionless header and deliver packet */ 1505107120Sjulian clt_hdr = mtod(m, ng_l2cap_clt_hdr_t *); 1506107120Sjulian m_adj(m, sizeof(*clt_hdr)); 1507107120Sjulian 1508107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1509107120Sjulian"%s: Got L2CAP connectionless data packet, " \ 1510107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, length=%d\n", 1511107120Sjulian __func__, 1512107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1513107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1514107120Sjulian clt_hdr->psm, hdr->length); 1515107120Sjulian 1516107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1517107120Sjulian 1518107120Sjulian LIST_FOREACH(pcb, &ng_btsocket_l2cap_sockets, next) { 1519107120Sjulian struct mbuf *copy = NULL; 1520107120Sjulian 1521107120Sjulian mtx_lock(&pcb->pcb_mtx); 1522107120Sjulian 1523107120Sjulian if (bcmp(&rt->src, &pcb->src, sizeof(pcb->src)) != 0 || 1524107120Sjulian pcb->psm != clt_hdr->psm || 1525107120Sjulian pcb->state != NG_BTSOCKET_L2CAP_OPEN || 1526107120Sjulian (pcb->so->so_options & SO_BROADCAST) == 0 || 1527107120Sjulian m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) 1528107120Sjulian goto next; 1529107120Sjulian 1530107120Sjulian /* 1531107120Sjulian * Create a copy of the packet and append it to the 1532107120Sjulian * socket's queue. If m_dup() failed - no big deal 1533107120Sjulian * it is a broadcast traffic after all 1534107120Sjulian */ 1535107120Sjulian 1536111119Simp copy = m_dup(m, M_DONTWAIT); 1537107120Sjulian if (copy != NULL) { 1538107120Sjulian sbappendrecord(&pcb->so->so_rcv, copy); 1539107120Sjulian sorwakeup(pcb->so); 1540107120Sjulian } 1541107120Sjuliannext: 1542107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1543107120Sjulian } 1544114878Sjulian 1545107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1546107120Sjulian } 1547107120Sjuliandrop: 1548107120Sjulian NG_FREE_M(m); /* checks for m != NULL */ 1549107120Sjulian} /* ng_btsocket_l2cap_data_input */ 1550107120Sjulian 1551107120Sjulian/* 1552107120Sjulian * L2CAP sockets default message input routine 1553107120Sjulian */ 1554107120Sjulian 1555107120Sjulianstatic void 1556107120Sjulianng_btsocket_l2cap_default_msg_input(struct ng_mesg *msg, hook_p hook) 1557107120Sjulian{ 1558107120Sjulian switch (msg->header.cmd) { 1559107120Sjulian case NGM_L2CAP_NODE_HOOK_INFO: { 1560107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 1561107120Sjulian 1562107120Sjulian if (hook == NULL || msg->header.arglen != sizeof(bdaddr_t)) 1563107120Sjulian break; 1564107120Sjulian 1565107120Sjulian if (bcmp(msg->data, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 1566107120Sjulian break; 1567107120Sjulian 1568114878Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 1569114878Sjulian 1570107120Sjulian rt = (ng_btsocket_l2cap_rtentry_t *) NG_HOOK_PRIVATE(hook); 1571107120Sjulian if (rt == NULL) { 1572184205Sdes rt = malloc(sizeof(*rt), 1573107120Sjulian M_NETGRAPH_BTSOCKET_L2CAP, M_NOWAIT|M_ZERO); 1574114878Sjulian if (rt == NULL) { 1575114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1576107120Sjulian break; 1577114878Sjulian } 1578107120Sjulian 1579107120Sjulian LIST_INSERT_HEAD(&ng_btsocket_l2cap_rt, rt, next); 1580107120Sjulian 1581107120Sjulian NG_HOOK_SET_PRIVATE(hook, rt); 1582107120Sjulian } 1583114878Sjulian 1584107120Sjulian bcopy(msg->data, &rt->src, sizeof(rt->src)); 1585107120Sjulian rt->hook = hook; 1586107120Sjulian 1587114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1588114878Sjulian 1589107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1590107120Sjulian"%s: Updating hook \"%s\", src bdaddr=%x:%x:%x:%x:%x:%x\n", 1591107120Sjulian __func__, NG_HOOK_NAME(hook), 1592107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1593107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0]); 1594107120Sjulian } break; 1595107120Sjulian 1596107120Sjulian default: 1597107120Sjulian NG_BTSOCKET_L2CAP_WARN( 1598107120Sjulian"%s: Unknown message, cmd=%d\n", __func__, msg->header.cmd); 1599107120Sjulian break; 1600107120Sjulian } 1601107120Sjulian 1602107120Sjulian NG_FREE_MSG(msg); /* Checks for msg != NULL */ 1603107120Sjulian} /* ng_btsocket_l2cap_default_msg_input */ 1604107120Sjulian 1605107120Sjulian/* 1606107120Sjulian * L2CAP sockets L2CA message input routine 1607107120Sjulian */ 1608107120Sjulian 1609107120Sjulianstatic void 1610107120Sjulianng_btsocket_l2cap_l2ca_msg_input(struct ng_mesg *msg, hook_p hook) 1611107120Sjulian{ 1612161623Semax ng_btsocket_l2cap_rtentry_p rt = NULL; 1613107120Sjulian 1614107120Sjulian if (hook == NULL) { 1615107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1616107120Sjulian"%s: Invalid source hook for L2CA message\n", __func__); 1617107120Sjulian goto drop; 1618107120Sjulian } 1619107120Sjulian 1620107120Sjulian rt = (ng_btsocket_l2cap_rtentry_p) NG_HOOK_PRIVATE(hook); 1621107120Sjulian if (rt == NULL) { 1622107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1623107120Sjulian"%s: Could not find out source bdaddr for L2CA message\n", __func__); 1624107120Sjulian goto drop; 1625107120Sjulian } 1626107120Sjulian 1627107120Sjulian switch (msg->header.cmd) { 1628107120Sjulian case NGM_L2CAP_L2CA_CON: /* L2CA_Connect response */ 1629161623Semax ng_btsocket_l2cap_process_l2ca_con_req_rsp(msg, rt); 1630107120Sjulian break; 1631107120Sjulian 1632107120Sjulian case NGM_L2CAP_L2CA_CON_RSP: /* L2CA_ConnectRsp response */ 1633161623Semax ng_btsocket_l2cap_process_l2ca_con_rsp_rsp(msg, rt); 1634107120Sjulian break; 1635107120Sjulian 1636107120Sjulian case NGM_L2CAP_L2CA_CON_IND: /* L2CA_Connect indicator */ 1637161623Semax ng_btsocket_l2cap_process_l2ca_con_ind(msg, rt); 1638107120Sjulian break; 1639107120Sjulian 1640107120Sjulian case NGM_L2CAP_L2CA_CFG: /* L2CA_Config response */ 1641161623Semax ng_btsocket_l2cap_process_l2ca_cfg_req_rsp(msg, rt); 1642107120Sjulian break; 1643107120Sjulian 1644107120Sjulian case NGM_L2CAP_L2CA_CFG_RSP: /* L2CA_ConfigRsp response */ 1645161623Semax ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp(msg, rt); 1646107120Sjulian break; 1647107120Sjulian 1648107120Sjulian case NGM_L2CAP_L2CA_CFG_IND: /* L2CA_Config indicator */ 1649161623Semax ng_btsocket_l2cap_process_l2ca_cfg_ind(msg, rt); 1650107120Sjulian break; 1651107120Sjulian 1652107120Sjulian case NGM_L2CAP_L2CA_DISCON: /* L2CA_Disconnect response */ 1653161623Semax ng_btsocket_l2cap_process_l2ca_discon_rsp(msg, rt); 1654107120Sjulian break; 1655107120Sjulian 1656107120Sjulian case NGM_L2CAP_L2CA_DISCON_IND: /* L2CA_Disconnect indicator */ 1657161623Semax ng_btsocket_l2cap_process_l2ca_discon_ind(msg, rt); 1658107120Sjulian break; 1659107120Sjulian 1660107120Sjulian case NGM_L2CAP_L2CA_WRITE: /* L2CA_Write response */ 1661161623Semax ng_btsocket_l2cap_process_l2ca_write_rsp(msg, rt); 1662107120Sjulian break; 1663107120Sjulian 1664107120Sjulian /* XXX FIXME add other L2CA messages */ 1665107120Sjulian 1666107120Sjulian default: 1667107120Sjulian NG_BTSOCKET_L2CAP_WARN( 1668107120Sjulian"%s: Unknown L2CA message, cmd=%d\n", __func__, msg->header.cmd); 1669107120Sjulian break; 1670107120Sjulian } 1671107120Sjuliandrop: 1672107120Sjulian NG_FREE_MSG(msg); 1673107120Sjulian} /* ng_btsocket_l2cap_l2ca_msg_input */ 1674107120Sjulian 1675107120Sjulian/* 1676107120Sjulian * L2CAP sockets input routine 1677107120Sjulian */ 1678107120Sjulian 1679107120Sjulianstatic void 1680107120Sjulianng_btsocket_l2cap_input(void *context, int pending) 1681107120Sjulian{ 1682107120Sjulian item_p item = NULL; 1683107120Sjulian hook_p hook = NULL; 1684107120Sjulian 1685107120Sjulian for (;;) { 1686107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 1687107120Sjulian NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_l2cap_queue, item); 1688107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 1689107120Sjulian 1690107120Sjulian if (item == NULL) 1691107120Sjulian break; 1692107120Sjulian 1693107120Sjulian NGI_GET_HOOK(item, hook); 1694107120Sjulian if (hook != NULL && NG_HOOK_NOT_VALID(hook)) 1695107120Sjulian goto drop; 1696107120Sjulian 1697107120Sjulian switch(item->el_flags & NGQF_TYPE) { 1698107120Sjulian case NGQF_DATA: { 1699107120Sjulian struct mbuf *m = NULL; 1700107120Sjulian 1701107120Sjulian NGI_GET_M(item, m); 1702107120Sjulian ng_btsocket_l2cap_data_input(m, hook); 1703107120Sjulian } break; 1704107120Sjulian 1705107120Sjulian case NGQF_MESG: { 1706107120Sjulian struct ng_mesg *msg = NULL; 1707107120Sjulian 1708107120Sjulian NGI_GET_MSG(item, msg); 1709107120Sjulian 1710107120Sjulian switch (msg->header.cmd) { 1711107120Sjulian case NGM_L2CAP_L2CA_CON: 1712107120Sjulian case NGM_L2CAP_L2CA_CON_RSP: 1713107120Sjulian case NGM_L2CAP_L2CA_CON_IND: 1714107120Sjulian case NGM_L2CAP_L2CA_CFG: 1715107120Sjulian case NGM_L2CAP_L2CA_CFG_RSP: 1716107120Sjulian case NGM_L2CAP_L2CA_CFG_IND: 1717107120Sjulian case NGM_L2CAP_L2CA_DISCON: 1718107120Sjulian case NGM_L2CAP_L2CA_DISCON_IND: 1719107120Sjulian case NGM_L2CAP_L2CA_WRITE: 1720107120Sjulian /* XXX FIXME add other L2CA messages */ 1721107120Sjulian ng_btsocket_l2cap_l2ca_msg_input(msg, hook); 1722107120Sjulian break; 1723107120Sjulian 1724107120Sjulian default: 1725107120Sjulian ng_btsocket_l2cap_default_msg_input(msg, hook); 1726107120Sjulian break; 1727107120Sjulian } 1728107120Sjulian } break; 1729107120Sjulian 1730107120Sjulian default: 1731107120Sjulian KASSERT(0, 1732107120Sjulian("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 1733107120Sjulian break; 1734107120Sjulian } 1735107120Sjuliandrop: 1736107120Sjulian if (hook != NULL) 1737107120Sjulian NG_HOOK_UNREF(hook); 1738107120Sjulian 1739107120Sjulian NG_FREE_ITEM(item); 1740107120Sjulian } 1741107120Sjulian} /* ng_btsocket_l2cap_input */ 1742107120Sjulian 1743107120Sjulian/* 1744107120Sjulian * Route cleanup task. Gets scheduled when hook is disconnected. Here we 1745107120Sjulian * will find all sockets that use "invalid" hook and disconnect them. 1746107120Sjulian */ 1747107120Sjulian 1748107120Sjulianstatic void 1749107120Sjulianng_btsocket_l2cap_rtclean(void *context, int pending) 1750107120Sjulian{ 1751114878Sjulian ng_btsocket_l2cap_pcb_p pcb = NULL, pcb_next = NULL; 1752107120Sjulian ng_btsocket_l2cap_rtentry_p rt = NULL; 1753107120Sjulian 1754107120Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 1755107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1756107120Sjulian 1757107120Sjulian /* 1758107120Sjulian * First disconnect all sockets that use "invalid" hook 1759107120Sjulian */ 1760107120Sjulian 1761114878Sjulian for (pcb = LIST_FIRST(&ng_btsocket_l2cap_sockets); pcb != NULL; ) { 1762107120Sjulian mtx_lock(&pcb->pcb_mtx); 1763114878Sjulian pcb_next = LIST_NEXT(pcb, next); 1764107120Sjulian 1765107120Sjulian if (pcb->rt != NULL && 1766107120Sjulian pcb->rt->hook != NULL && NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1767107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 1768107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1769107120Sjulian 1770107120Sjulian pcb->so->so_error = ENETDOWN; 1771107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1772107120Sjulian soisdisconnected(pcb->so); 1773107120Sjulian 1774107120Sjulian pcb->token = 0; 1775114878Sjulian pcb->cid = 0; 1776107120Sjulian pcb->rt = NULL; 1777107120Sjulian } 1778107120Sjulian 1779107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1780114878Sjulian pcb = pcb_next; 1781107120Sjulian } 1782107120Sjulian 1783107120Sjulian /* 1784107120Sjulian * Now cleanup routing table 1785107120Sjulian */ 1786107120Sjulian 1787114878Sjulian for (rt = LIST_FIRST(&ng_btsocket_l2cap_rt); rt != NULL; ) { 1788107120Sjulian ng_btsocket_l2cap_rtentry_p rt_next = LIST_NEXT(rt, next); 1789107120Sjulian 1790107120Sjulian if (rt->hook != NULL && NG_HOOK_NOT_VALID(rt->hook)) { 1791107120Sjulian LIST_REMOVE(rt, next); 1792107120Sjulian 1793107120Sjulian NG_HOOK_SET_PRIVATE(rt->hook, NULL); 1794107120Sjulian NG_HOOK_UNREF(rt->hook); /* Remove extra reference */ 1795107120Sjulian 1796107120Sjulian bzero(rt, sizeof(*rt)); 1797184205Sdes free(rt, M_NETGRAPH_BTSOCKET_L2CAP); 1798107120Sjulian } 1799107120Sjulian 1800107120Sjulian rt = rt_next; 1801107120Sjulian } 1802107120Sjulian 1803107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1804107120Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1805107120Sjulian} /* ng_btsocket_l2cap_rtclean */ 1806107120Sjulian 1807107120Sjulian/* 1808107120Sjulian * Initialize everything 1809107120Sjulian */ 1810107120Sjulian 1811107120Sjulianvoid 1812107120Sjulianng_btsocket_l2cap_init(void) 1813107120Sjulian{ 1814107120Sjulian int error = 0; 1815107120Sjulian 1816107120Sjulian ng_btsocket_l2cap_node = NULL; 1817107120Sjulian ng_btsocket_l2cap_debug_level = NG_BTSOCKET_WARN_LEVEL; 1818107120Sjulian 1819107120Sjulian /* Register Netgraph node type */ 1820107120Sjulian error = ng_newtype(&typestruct); 1821107120Sjulian if (error != 0) { 1822107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1823107120Sjulian"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 1824107120Sjulian 1825107120Sjulian return; 1826107120Sjulian } 1827107120Sjulian 1828107120Sjulian /* Create Netgrapg node */ 1829107120Sjulian error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_node); 1830107120Sjulian if (error != 0) { 1831107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1832107120Sjulian"%s: Could not create Netgraph node, error=%d\n", __func__, error); 1833107120Sjulian 1834107120Sjulian ng_btsocket_l2cap_node = NULL; 1835107120Sjulian 1836107120Sjulian return; 1837107120Sjulian } 1838107120Sjulian 1839107120Sjulian error = ng_name_node(ng_btsocket_l2cap_node, 1840107120Sjulian NG_BTSOCKET_L2CAP_NODE_TYPE); 1841107120Sjulian if (error != 0) { 1842107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1843107120Sjulian"%s: Could not name Netgraph node, error=%d\n", __func__, error); 1844107120Sjulian 1845107120Sjulian NG_NODE_UNREF(ng_btsocket_l2cap_node); 1846107120Sjulian ng_btsocket_l2cap_node = NULL; 1847107120Sjulian 1848107120Sjulian return; 1849107120Sjulian } 1850107120Sjulian 1851107120Sjulian /* Create input queue */ 1852107120Sjulian NG_BT_ITEMQ_INIT(&ng_btsocket_l2cap_queue, ifqmaxlen); 1853107120Sjulian mtx_init(&ng_btsocket_l2cap_queue_mtx, 1854107120Sjulian "btsocks_l2cap_queue_mtx", NULL, MTX_DEF); 1855107120Sjulian TASK_INIT(&ng_btsocket_l2cap_queue_task, 0, 1856107120Sjulian ng_btsocket_l2cap_input, NULL); 1857107120Sjulian 1858107120Sjulian /* Create list of sockets */ 1859107120Sjulian LIST_INIT(&ng_btsocket_l2cap_sockets); 1860107120Sjulian mtx_init(&ng_btsocket_l2cap_sockets_mtx, 1861107120Sjulian "btsocks_l2cap_sockets_mtx", NULL, MTX_DEF); 1862107120Sjulian 1863107120Sjulian /* Routing table */ 1864107120Sjulian LIST_INIT(&ng_btsocket_l2cap_rt); 1865107120Sjulian mtx_init(&ng_btsocket_l2cap_rt_mtx, 1866107120Sjulian "btsocks_l2cap_rt_mtx", NULL, MTX_DEF); 1867107120Sjulian TASK_INIT(&ng_btsocket_l2cap_rt_task, 0, 1868107120Sjulian ng_btsocket_l2cap_rtclean, NULL); 1869107120Sjulian} /* ng_btsocket_l2cap_init */ 1870107120Sjulian 1871107120Sjulian/* 1872107120Sjulian * Abort connection on socket 1873107120Sjulian */ 1874107120Sjulian 1875157366Srwatsonvoid 1876107120Sjulianng_btsocket_l2cap_abort(struct socket *so) 1877107120Sjulian{ 1878107120Sjulian so->so_error = ECONNABORTED; 1879107120Sjulian 1880160549Srwatson (void)ng_btsocket_l2cap_disconnect(so); 1881107120Sjulian} /* ng_btsocket_l2cap_abort */ 1882107120Sjulian 1883160549Srwatsonvoid 1884160549Srwatsonng_btsocket_l2cap_close(struct socket *so) 1885160549Srwatson{ 1886160549Srwatson 1887160549Srwatson (void)ng_btsocket_l2cap_disconnect(so); 1888160549Srwatson} /* ng_btsocket_l2cap_close */ 1889160549Srwatson 1890107120Sjulian/* 1891107120Sjulian * Accept connection on socket. Nothing to do here, socket must be connected 1892107120Sjulian * and ready, so just return peer address and be done with it. 1893107120Sjulian */ 1894107120Sjulian 1895107120Sjulianint 1896107120Sjulianng_btsocket_l2cap_accept(struct socket *so, struct sockaddr **nam) 1897107120Sjulian{ 1898107120Sjulian if (ng_btsocket_l2cap_node == NULL) 1899107120Sjulian return (EINVAL); 1900107120Sjulian 1901107120Sjulian return (ng_btsocket_l2cap_peeraddr(so, nam)); 1902107120Sjulian} /* ng_btsocket_l2cap_accept */ 1903107120Sjulian 1904107120Sjulian/* 1905107120Sjulian * Create and attach new socket 1906107120Sjulian */ 1907107120Sjulian 1908107120Sjulianint 1909107120Sjulianng_btsocket_l2cap_attach(struct socket *so, int proto, struct thread *td) 1910107120Sjulian{ 1911114878Sjulian static u_int32_t token = 0; 1912107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 1913107120Sjulian int error; 1914107120Sjulian 1915107120Sjulian /* Check socket and protocol */ 1916107120Sjulian if (ng_btsocket_l2cap_node == NULL) 1917107120Sjulian return (EPROTONOSUPPORT); 1918107120Sjulian if (so->so_type != SOCK_SEQPACKET) 1919107120Sjulian return (ESOCKTNOSUPPORT); 1920107120Sjulian 1921107120Sjulian#if 0 /* XXX sonewconn() calls "pru_attach" with proto == 0 */ 1922107120Sjulian if (proto != 0) 1923107120Sjulian if (proto != BLUETOOTH_PROTO_L2CAP) 1924107120Sjulian return (EPROTONOSUPPORT); 1925107120Sjulian#endif /* XXX */ 1926107120Sjulian 1927107120Sjulian if (pcb != NULL) 1928107120Sjulian return (EISCONN); 1929107120Sjulian 1930107120Sjulian /* Reserve send and receive space if it is not reserved yet */ 1931107120Sjulian if ((so->so_snd.sb_hiwat == 0) || (so->so_rcv.sb_hiwat == 0)) { 1932107120Sjulian error = soreserve(so, NG_BTSOCKET_L2CAP_SENDSPACE, 1933107120Sjulian NG_BTSOCKET_L2CAP_RECVSPACE); 1934107120Sjulian if (error != 0) 1935107120Sjulian return (error); 1936107120Sjulian } 1937107120Sjulian 1938107120Sjulian /* Allocate the PCB */ 1939184205Sdes pcb = malloc(sizeof(*pcb), 1940107120Sjulian M_NETGRAPH_BTSOCKET_L2CAP, M_NOWAIT | M_ZERO); 1941107120Sjulian if (pcb == NULL) 1942107120Sjulian return (ENOMEM); 1943107120Sjulian 1944107120Sjulian /* Link the PCB and the socket */ 1945107120Sjulian so->so_pcb = (caddr_t) pcb; 1946107120Sjulian pcb->so = so; 1947107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1948107120Sjulian 1949107120Sjulian /* Initialize PCB */ 1950107120Sjulian pcb->imtu = pcb->omtu = NG_L2CAP_MTU_DEFAULT; 1951107120Sjulian 1952107120Sjulian /* Default flow */ 1953107120Sjulian pcb->iflow.flags = 0x0; 1954107120Sjulian pcb->iflow.service_type = NG_HCI_SERVICE_TYPE_BEST_EFFORT; 1955107120Sjulian pcb->iflow.token_rate = 0xffffffff; /* maximum */ 1956107120Sjulian pcb->iflow.token_bucket_size = 0xffffffff; /* maximum */ 1957107120Sjulian pcb->iflow.peak_bandwidth = 0x00000000; /* maximum */ 1958107120Sjulian pcb->iflow.latency = 0xffffffff; /* don't care */ 1959107120Sjulian pcb->iflow.delay_variation = 0xffffffff; /* don't care */ 1960107120Sjulian 1961107120Sjulian bcopy(&pcb->iflow, &pcb->oflow, sizeof(pcb->oflow)); 1962107120Sjulian 1963107120Sjulian pcb->flush_timo = NG_L2CAP_FLUSH_TIMO_DEFAULT; 1964107120Sjulian pcb->link_timo = NG_L2CAP_LINK_TIMO_DEFAULT; 1965107120Sjulian 1966107120Sjulian callout_handle_init(&pcb->timo); 1967107120Sjulian 1968114878Sjulian /* 1969114878Sjulian * XXX Mark PCB mutex as DUPOK to prevent "duplicated lock of 1970114878Sjulian * the same type" message. When accepting new L2CAP connection 1971114878Sjulian * ng_btsocket_l2cap_process_l2ca_con_ind() holds both PCB mutexes 1972114878Sjulian * for "old" (accepting) PCB and "new" (created) PCB. 1973114878Sjulian */ 1974114878Sjulian 1975114878Sjulian mtx_init(&pcb->pcb_mtx, "btsocks_l2cap_pcb_mtx", NULL, 1976114878Sjulian MTX_DEF|MTX_DUPOK); 1977114878Sjulian 1978114878Sjulian /* 1979114878Sjulian * Add the PCB to the list 1980114878Sjulian * 1981114878Sjulian * XXX FIXME VERY IMPORTANT! 1982114878Sjulian * 1983114878Sjulian * This is totally FUBAR. We could get here in two cases: 1984114878Sjulian * 1985114878Sjulian * 1) When user calls socket() 1986114878Sjulian * 2) When we need to accept new incomming connection and call 1987114878Sjulian * sonewconn() 1988114878Sjulian * 1989170035Srwatson * In the first case we must acquire ng_btsocket_l2cap_sockets_mtx. 1990114878Sjulian * In the second case we hold ng_btsocket_l2cap_sockets_mtx already. 1991114878Sjulian * So we now need to distinguish between these cases. From reading 1992167907Smaxim * /sys/kern/uipc_socket.c we can find out that sonewconn() calls 1993114878Sjulian * pru_attach with proto == 0 and td == NULL. For now use this fact 1994114878Sjulian * to figure out if we were called from socket() or from sonewconn(). 1995114878Sjulian */ 1996114878Sjulian 1997114878Sjulian if (td != NULL) 1998114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1999114878Sjulian else 2000114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2001114878Sjulian 2002114878Sjulian /* Set PCB token. Use ng_btsocket_l2cap_sockets_mtx for protection */ 2003114878Sjulian if (++ token == 0) 2004114878Sjulian token ++; 2005114878Sjulian 2006114878Sjulian pcb->token = token; 2007114878Sjulian 2008107120Sjulian LIST_INSERT_HEAD(&ng_btsocket_l2cap_sockets, pcb, next); 2009107120Sjulian 2010114878Sjulian if (td != NULL) 2011114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2012114878Sjulian 2013107120Sjulian return (0); 2014107120Sjulian} /* ng_btsocket_l2cap_attach */ 2015107120Sjulian 2016107120Sjulian/* 2017107120Sjulian * Bind socket 2018107120Sjulian */ 2019107120Sjulian 2020107120Sjulianint 2021107120Sjulianng_btsocket_l2cap_bind(struct socket *so, struct sockaddr *nam, 2022107120Sjulian struct thread *td) 2023107120Sjulian{ 2024107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 2025107120Sjulian struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam; 2026107120Sjulian int psm, error = 0; 2027107120Sjulian 2028107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2029107120Sjulian return (EINVAL); 2030107120Sjulian 2031107120Sjulian /* Verify address */ 2032107120Sjulian if (sa == NULL) 2033107120Sjulian return (EINVAL); 2034107120Sjulian if (sa->l2cap_family != AF_BLUETOOTH) 2035107120Sjulian return (EAFNOSUPPORT); 2036107120Sjulian if (sa->l2cap_len != sizeof(*sa)) 2037107120Sjulian return (EINVAL); 2038107120Sjulian 2039107120Sjulian psm = le16toh(sa->l2cap_psm); 2040107120Sjulian 2041107120Sjulian /* 2042107120Sjulian * Check if other socket has this address already (look for exact 2043107120Sjulian * match PSM and bdaddr) and assign socket address if it's available. 2044107120Sjulian * 2045107120Sjulian * Note: socket can be bound to ANY PSM (zero) thus allowing several 2046107120Sjulian * channels with the same PSM between the same pair of BD_ADDR'es. 2047107120Sjulian */ 2048107120Sjulian 2049107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2050107120Sjulian 2051107120Sjulian LIST_FOREACH(pcb, &ng_btsocket_l2cap_sockets, next) 2052107120Sjulian if (psm != 0 && psm == pcb->psm && 2053107120Sjulian bcmp(&pcb->src, &sa->l2cap_bdaddr, sizeof(bdaddr_t)) == 0) 2054107120Sjulian break; 2055107120Sjulian 2056107120Sjulian if (pcb == NULL) { 2057107120Sjulian /* Set socket address */ 2058107120Sjulian pcb = so2l2cap_pcb(so); 2059107120Sjulian if (pcb != NULL) { 2060107120Sjulian bcopy(&sa->l2cap_bdaddr, &pcb->src, sizeof(pcb->src)); 2061107120Sjulian pcb->psm = psm; 2062107120Sjulian } else 2063107120Sjulian error = EINVAL; 2064107120Sjulian } else 2065107120Sjulian error = EADDRINUSE; 2066107120Sjulian 2067107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2068107120Sjulian 2069107120Sjulian return (error); 2070107120Sjulian} /* ng_btsocket_l2cap_bind */ 2071107120Sjulian 2072107120Sjulian/* 2073107120Sjulian * Connect socket 2074107120Sjulian */ 2075107120Sjulian 2076107120Sjulianint 2077107120Sjulianng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam, 2078107120Sjulian struct thread *td) 2079107120Sjulian{ 2080107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = so2l2cap_pcb(so); 2081107120Sjulian struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam; 2082107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 2083107120Sjulian int have_src, error = 0; 2084107120Sjulian 2085107120Sjulian /* Check socket */ 2086107120Sjulian if (pcb == NULL) 2087107120Sjulian return (EINVAL); 2088107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2089107120Sjulian return (EINVAL); 2090107120Sjulian if (pcb->state == NG_BTSOCKET_L2CAP_CONNECTING) 2091107120Sjulian return (EINPROGRESS); 2092107120Sjulian 2093107120Sjulian /* Verify address */ 2094107120Sjulian if (sa == NULL) 2095107120Sjulian return (EINVAL); 2096107120Sjulian if (sa->l2cap_family != AF_BLUETOOTH) 2097107120Sjulian return (EAFNOSUPPORT); 2098107120Sjulian if (sa->l2cap_len != sizeof(*sa)) 2099107120Sjulian return (EINVAL); 2100107120Sjulian if (sa->l2cap_psm == 0 || 2101107120Sjulian bcmp(&sa->l2cap_bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 2102107120Sjulian return (EDESTADDRREQ); 2103107120Sjulian if (pcb->psm != 0 && pcb->psm != le16toh(sa->l2cap_psm)) 2104107120Sjulian return (EINVAL); 2105107120Sjulian 2106107120Sjulian /* 2107107120Sjulian * Routing. Socket should be bound to some source address. The source 2108107120Sjulian * address can be ANY. Destination address must be set and it must not 2109107120Sjulian * be ANY. If source address is ANY then find first rtentry that has 2110107120Sjulian * src != dst. 2111107120Sjulian */ 2112107120Sjulian 2113114878Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 2114114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2115114878Sjulian mtx_lock(&pcb->pcb_mtx); 2116114878Sjulian 2117114878Sjulian /* Send destination address and PSM */ 2118114878Sjulian bcopy(&sa->l2cap_bdaddr, &pcb->dst, sizeof(pcb->dst)); 2119114878Sjulian pcb->psm = le16toh(sa->l2cap_psm); 2120114878Sjulian 2121107120Sjulian pcb->rt = NULL; 2122107120Sjulian have_src = bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)); 2123107120Sjulian 2124107120Sjulian LIST_FOREACH(rt, &ng_btsocket_l2cap_rt, next) { 2125107120Sjulian if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 2126107120Sjulian continue; 2127107120Sjulian 2128107120Sjulian /* Match src and dst */ 2129107120Sjulian if (have_src) { 2130107120Sjulian if (bcmp(&pcb->src, &rt->src, sizeof(rt->src)) == 0) 2131107120Sjulian break; 2132107120Sjulian } else { 2133107120Sjulian if (bcmp(&pcb->dst, &rt->src, sizeof(rt->src)) != 0) 2134107120Sjulian break; 2135107120Sjulian } 2136107120Sjulian } 2137107120Sjulian 2138107120Sjulian if (rt != NULL) { 2139107120Sjulian pcb->rt = rt; 2140107120Sjulian 2141107120Sjulian if (!have_src) 2142107120Sjulian bcopy(&rt->src, &pcb->src, sizeof(pcb->src)); 2143107120Sjulian } else 2144107120Sjulian error = EHOSTUNREACH; 2145107120Sjulian 2146107120Sjulian /* 2147107120Sjulian * Send L2CA_Connect request 2148107120Sjulian */ 2149107120Sjulian 2150107120Sjulian if (error == 0) { 2151107120Sjulian error = ng_btsocket_l2cap_send_l2ca_con_req(pcb); 2152107120Sjulian if (error == 0) { 2153107120Sjulian pcb->flags |= NG_BTSOCKET_L2CAP_CLIENT; 2154107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONNECTING; 2155107120Sjulian soisconnecting(pcb->so); 2156107120Sjulian 2157107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2158107120Sjulian } 2159107120Sjulian } 2160107120Sjulian 2161114878Sjulian mtx_unlock(&pcb->pcb_mtx); 2162114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2163114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 2164114878Sjulian 2165107120Sjulian return (error); 2166107120Sjulian} /* ng_btsocket_l2cap_connect */ 2167107120Sjulian 2168107120Sjulian/* 2169107120Sjulian * Process ioctl's calls on socket 2170107120Sjulian */ 2171107120Sjulian 2172107120Sjulianint 2173107120Sjulianng_btsocket_l2cap_control(struct socket *so, u_long cmd, caddr_t data, 2174107120Sjulian struct ifnet *ifp, struct thread *td) 2175107120Sjulian{ 2176107120Sjulian return (EINVAL); 2177107120Sjulian} /* ng_btsocket_l2cap_control */ 2178107120Sjulian 2179107120Sjulian/* 2180107120Sjulian * Process getsockopt/setsockopt system calls 2181107120Sjulian */ 2182107120Sjulian 2183107120Sjulianint 2184107120Sjulianng_btsocket_l2cap_ctloutput(struct socket *so, struct sockopt *sopt) 2185107120Sjulian{ 2186107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2187107120Sjulian int error = 0; 2188107120Sjulian ng_l2cap_cfg_opt_val_t v; 2189107120Sjulian 2190107120Sjulian if (pcb == NULL) 2191107120Sjulian return (EINVAL); 2192107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2193107120Sjulian return (EINVAL); 2194107120Sjulian 2195107120Sjulian if (sopt->sopt_level != SOL_L2CAP) 2196107120Sjulian return (0); 2197107120Sjulian 2198107120Sjulian mtx_lock(&pcb->pcb_mtx); 2199107120Sjulian 2200107120Sjulian switch (sopt->sopt_dir) { 2201107120Sjulian case SOPT_GET: 2202107120Sjulian switch (sopt->sopt_name) { 2203107120Sjulian case SO_L2CAP_IMTU: /* get incoming MTU */ 2204107120Sjulian error = sooptcopyout(sopt, &pcb->imtu, 2205107120Sjulian sizeof(pcb->imtu)); 2206107120Sjulian break; 2207107120Sjulian 2208107120Sjulian case SO_L2CAP_OMTU: /* get outgoing (peer incoming) MTU */ 2209107120Sjulian error = sooptcopyout(sopt, &pcb->omtu, 2210107120Sjulian sizeof(pcb->omtu)); 2211107120Sjulian break; 2212107120Sjulian 2213107120Sjulian case SO_L2CAP_IFLOW: /* get incoming flow spec. */ 2214107120Sjulian error = sooptcopyout(sopt, &pcb->iflow, 2215107120Sjulian sizeof(pcb->iflow)); 2216107120Sjulian break; 2217107120Sjulian 2218107120Sjulian case SO_L2CAP_OFLOW: /* get outgoing flow spec. */ 2219107120Sjulian error = sooptcopyout(sopt, &pcb->oflow, 2220107120Sjulian sizeof(pcb->oflow)); 2221107120Sjulian break; 2222107120Sjulian 2223107120Sjulian case SO_L2CAP_FLUSH: /* get flush timeout */ 2224107120Sjulian error = sooptcopyout(sopt, &pcb->flush_timo, 2225107120Sjulian sizeof(pcb->flush_timo)); 2226107120Sjulian break; 2227107120Sjulian 2228107120Sjulian default: 2229107120Sjulian error = ENOPROTOOPT; 2230107120Sjulian break; 2231107120Sjulian } 2232107120Sjulian break; 2233107120Sjulian 2234107120Sjulian case SOPT_SET: 2235107120Sjulian /* 2236114878Sjulian * XXX 2237114878Sjulian * We do not allow to change these parameters while socket is 2238114878Sjulian * connected or we are in the process of creating a connection. 2239114878Sjulian * May be this should indicate re-configuration of the open 2240114878Sjulian * channel? 2241107120Sjulian */ 2242107120Sjulian 2243173231Semax if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 2244173231Semax error = EACCES; 2245173231Semax break; 2246173231Semax } 2247107120Sjulian 2248107120Sjulian switch (sopt->sopt_name) { 2249107120Sjulian case SO_L2CAP_IMTU: /* set incoming MTU */ 2250107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v), sizeof(v.mtu)); 2251107120Sjulian if (error == 0) 2252107120Sjulian pcb->imtu = v.mtu; 2253107120Sjulian break; 2254107120Sjulian 2255107120Sjulian case SO_L2CAP_OFLOW: /* set outgoing flow spec. */ 2256107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v),sizeof(v.flow)); 2257107120Sjulian if (error == 0) 2258107120Sjulian bcopy(&v.flow, &pcb->oflow, sizeof(pcb->oflow)); 2259107120Sjulian break; 2260107120Sjulian 2261107120Sjulian case SO_L2CAP_FLUSH: /* set flush timeout */ 2262107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v), 2263107120Sjulian sizeof(v.flush_timo)); 2264107120Sjulian if (error == 0) 2265107120Sjulian pcb->flush_timo = v.flush_timo; 2266107120Sjulian break; 2267107120Sjulian 2268107120Sjulian default: 2269107120Sjulian error = ENOPROTOOPT; 2270107120Sjulian break; 2271107120Sjulian } 2272107120Sjulian break; 2273107120Sjulian 2274107120Sjulian default: 2275107120Sjulian error = EINVAL; 2276107120Sjulian break; 2277107120Sjulian } 2278107120Sjulian 2279107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2280107120Sjulian 2281107120Sjulian return (error); 2282107120Sjulian} /* ng_btsocket_l2cap_ctloutput */ 2283107120Sjulian 2284107120Sjulian/* 2285107120Sjulian * Detach and destroy socket 2286107120Sjulian */ 2287107120Sjulian 2288157370Srwatsonvoid 2289107120Sjulianng_btsocket_l2cap_detach(struct socket *so) 2290107120Sjulian{ 2291107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2292107120Sjulian 2293157370Srwatson KASSERT(pcb != NULL, ("ng_btsocket_l2cap_detach: pcb == NULL")); 2294157370Srwatson 2295107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2296157370Srwatson return; 2297107120Sjulian 2298114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2299107120Sjulian mtx_lock(&pcb->pcb_mtx); 2300107120Sjulian 2301107120Sjulian /* XXX what to do with pending request? */ 2302107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 2303107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 2304107120Sjulian 2305107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED && 2306107120Sjulian pcb->state != NG_BTSOCKET_L2CAP_DISCONNECTING) 2307107120Sjulian /* Send disconnect request with "zero" token */ 2308107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 2309107120Sjulian 2310107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2311107120Sjulian 2312114878Sjulian LIST_REMOVE(pcb, next); 2313107120Sjulian 2314107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2315107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2316107120Sjulian 2317107120Sjulian mtx_destroy(&pcb->pcb_mtx); 2318107120Sjulian bzero(pcb, sizeof(*pcb)); 2319184205Sdes free(pcb, M_NETGRAPH_BTSOCKET_L2CAP); 2320107120Sjulian 2321114878Sjulian soisdisconnected(so); 2322114878Sjulian so->so_pcb = NULL; 2323107120Sjulian} /* ng_btsocket_l2cap_detach */ 2324107120Sjulian 2325107120Sjulian/* 2326107120Sjulian * Disconnect socket 2327107120Sjulian */ 2328107120Sjulian 2329107120Sjulianint 2330107120Sjulianng_btsocket_l2cap_disconnect(struct socket *so) 2331107120Sjulian{ 2332107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2333107120Sjulian int error = 0; 2334107120Sjulian 2335107120Sjulian if (pcb == NULL) 2336107120Sjulian return (EINVAL); 2337107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2338107120Sjulian return (EINVAL); 2339107120Sjulian 2340107120Sjulian mtx_lock(&pcb->pcb_mtx); 2341107120Sjulian 2342107120Sjulian if (pcb->state == NG_BTSOCKET_L2CAP_DISCONNECTING) { 2343107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2344107120Sjulian return (EINPROGRESS); 2345107120Sjulian } 2346107120Sjulian 2347107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 2348107120Sjulian /* XXX FIXME what to do with pending request? */ 2349107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 2350107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 2351107120Sjulian 2352107120Sjulian error = ng_btsocket_l2cap_send_l2ca_discon_req(pcb->token, pcb); 2353107120Sjulian if (error == 0) { 2354107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_DISCONNECTING; 2355107120Sjulian soisdisconnecting(so); 2356107120Sjulian 2357107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2358107120Sjulian } 2359107120Sjulian 2360107120Sjulian /* XXX FIXME what to do if error != 0 */ 2361107120Sjulian } 2362107120Sjulian 2363107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2364107120Sjulian 2365107120Sjulian return (error); 2366107120Sjulian} /* ng_btsocket_l2cap_disconnect */ 2367107120Sjulian 2368107120Sjulian/* 2369107120Sjulian * Listen on socket 2370107120Sjulian */ 2371107120Sjulian 2372107120Sjulianint 2373151888Srwatsonng_btsocket_l2cap_listen(struct socket *so, int backlog, struct thread *td) 2374107120Sjulian{ 2375107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2376142190Srwatson int error; 2377107120Sjulian 2378142190Srwatson SOCK_LOCK(so); 2379142190Srwatson error = solisten_proto_check(so); 2380142190Srwatson if (error != 0) 2381142190Srwatson goto out; 2382142190Srwatson if (pcb == NULL) { 2383142190Srwatson error = EINVAL; 2384142190Srwatson goto out; 2385142190Srwatson } 2386142190Srwatson if (ng_btsocket_l2cap_node == NULL) { 2387142190Srwatson error = EINVAL; 2388142190Srwatson goto out; 2389142190Srwatson } 2390142190Srwatson if (pcb->psm == 0) { 2391171937Semax error = EADDRNOTAVAIL; 2392142190Srwatson goto out; 2393142190Srwatson } 2394151888Srwatson solisten_proto(so, backlog); 2395142190Srwatsonout: 2396142190Srwatson SOCK_UNLOCK(so); 2397142190Srwatson return (error); 2398107120Sjulian} /* ng_btsocket_listen */ 2399107120Sjulian 2400107120Sjulian/* 2401107120Sjulian * Get peer address 2402107120Sjulian */ 2403107120Sjulian 2404107120Sjulianint 2405107120Sjulianng_btsocket_l2cap_peeraddr(struct socket *so, struct sockaddr **nam) 2406107120Sjulian{ 2407107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2408107120Sjulian struct sockaddr_l2cap sa; 2409107120Sjulian 2410107120Sjulian if (pcb == NULL) 2411107120Sjulian return (EINVAL); 2412107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2413107120Sjulian return (EINVAL); 2414107120Sjulian 2415107120Sjulian bcopy(&pcb->dst, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr)); 2416107120Sjulian sa.l2cap_psm = htole16(pcb->psm); 2417107120Sjulian sa.l2cap_len = sizeof(sa); 2418107120Sjulian sa.l2cap_family = AF_BLUETOOTH; 2419107120Sjulian 2420126425Srwatson *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 2421107120Sjulian 2422107120Sjulian return ((*nam == NULL)? ENOMEM : 0); 2423107120Sjulian} /* ng_btsocket_l2cap_peeraddr */ 2424107120Sjulian 2425107120Sjulian/* 2426107120Sjulian * Send data to socket 2427107120Sjulian */ 2428107120Sjulian 2429107120Sjulianint 2430107120Sjulianng_btsocket_l2cap_send(struct socket *so, int flags, struct mbuf *m, 2431107120Sjulian struct sockaddr *nam, struct mbuf *control, struct thread *td) 2432107120Sjulian{ 2433107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = so2l2cap_pcb(so); 2434107120Sjulian int error = 0; 2435107120Sjulian 2436107120Sjulian if (ng_btsocket_l2cap_node == NULL) { 2437107120Sjulian error = ENETDOWN; 2438107120Sjulian goto drop; 2439107120Sjulian } 2440107120Sjulian 2441107120Sjulian /* Check socket and input */ 2442107120Sjulian if (pcb == NULL || m == NULL || control != NULL) { 2443107120Sjulian error = EINVAL; 2444107120Sjulian goto drop; 2445107120Sjulian } 2446107120Sjulian 2447107120Sjulian mtx_lock(&pcb->pcb_mtx); 2448107120Sjulian 2449107120Sjulian /* Make sure socket is connected */ 2450107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 2451107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2452107120Sjulian error = ENOTCONN; 2453107120Sjulian goto drop; 2454107120Sjulian } 2455107120Sjulian 2456107120Sjulian /* Check route */ 2457107120Sjulian if (pcb->rt == NULL || 2458107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) { 2459107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2460107120Sjulian error = ENETDOWN; 2461107120Sjulian goto drop; 2462107120Sjulian } 2463107120Sjulian 2464107120Sjulian /* Check packet size agains outgoing (peer's incoming) MTU) */ 2465107120Sjulian if (m->m_pkthdr.len > pcb->omtu) { 2466107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2467107120Sjulian"%s: Packet too big, len=%d, omtu=%d\n", __func__, m->m_pkthdr.len, pcb->omtu); 2468107120Sjulian 2469107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2470107120Sjulian error = EMSGSIZE; 2471107120Sjulian goto drop; 2472107120Sjulian } 2473107120Sjulian 2474107120Sjulian /* 2475107120Sjulian * First put packet on socket send queue. Then check if we have 2476107120Sjulian * pending timeout. If we do not have timeout then we must send 2477107120Sjulian * packet and schedule timeout. Otherwise do nothing and wait for 2478107120Sjulian * L2CA_WRITE_RSP. 2479107120Sjulian */ 2480107120Sjulian 2481107120Sjulian sbappendrecord(&pcb->so->so_snd, m); 2482107120Sjulian m = NULL; 2483107120Sjulian 2484107120Sjulian if (!(pcb->flags & NG_BTSOCKET_L2CAP_TIMO)) { 2485107120Sjulian error = ng_btsocket_l2cap_send2(pcb); 2486107120Sjulian if (error == 0) 2487107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2488107120Sjulian else 2489107120Sjulian sbdroprecord(&pcb->so->so_snd); /* XXX */ 2490107120Sjulian } 2491107120Sjulian 2492107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2493107120Sjuliandrop: 2494107120Sjulian NG_FREE_M(m); /* checks for != NULL */ 2495107120Sjulian NG_FREE_M(control); 2496107120Sjulian 2497107120Sjulian return (error); 2498107120Sjulian} /* ng_btsocket_l2cap_send */ 2499107120Sjulian 2500107120Sjulian/* 2501107120Sjulian * Send first packet in the socket queue to the L2CAP layer 2502107120Sjulian */ 2503107120Sjulian 2504107120Sjulianstatic int 2505107120Sjulianng_btsocket_l2cap_send2(ng_btsocket_l2cap_pcb_p pcb) 2506107120Sjulian{ 2507107120Sjulian struct mbuf *m = NULL; 2508107120Sjulian ng_l2cap_l2ca_hdr_t *hdr = NULL; 2509107120Sjulian int error = 0; 2510107120Sjulian 2511107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2512107120Sjulian 2513107120Sjulian if (pcb->so->so_snd.sb_cc == 0) 2514107120Sjulian return (EINVAL); /* XXX */ 2515107120Sjulian 2516111119Simp m = m_dup(pcb->so->so_snd.sb_mb, M_DONTWAIT); 2517107120Sjulian if (m == NULL) 2518107120Sjulian return (ENOBUFS); 2519107120Sjulian 2520107120Sjulian /* Create L2CA packet header */ 2521114878Sjulian M_PREPEND(m, sizeof(*hdr), M_DONTWAIT); 2522107120Sjulian if (m != NULL) 2523107120Sjulian if (m->m_len < sizeof(*hdr)) 2524107120Sjulian m = m_pullup(m, sizeof(*hdr)); 2525107120Sjulian 2526107120Sjulian if (m == NULL) { 2527107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2528107120Sjulian"%s: Failed to create L2CA packet header\n", __func__); 2529107120Sjulian 2530107120Sjulian return (ENOBUFS); 2531107120Sjulian } 2532107120Sjulian 2533107120Sjulian hdr = mtod(m, ng_l2cap_l2ca_hdr_t *); 2534107120Sjulian hdr->token = pcb->token; 2535107120Sjulian hdr->length = m->m_pkthdr.len - sizeof(*hdr); 2536107120Sjulian hdr->lcid = pcb->cid; 2537107120Sjulian 2538107120Sjulian NG_BTSOCKET_L2CAP_INFO( 2539107120Sjulian"%s: Sending packet: len=%d, length=%d, lcid=%d, token=%d, state=%d\n", 2540107120Sjulian __func__, m->m_pkthdr.len, hdr->length, hdr->lcid, 2541107120Sjulian hdr->token, pcb->state); 2542107120Sjulian 2543107120Sjulian /* 2544107120Sjulian * If we got here than we have successfuly creates new L2CAP 2545107120Sjulian * data packet and now we can send it to the L2CAP layer 2546107120Sjulian */ 2547107120Sjulian 2548107120Sjulian NG_SEND_DATA_ONLY(error, pcb->rt->hook, m); 2549107120Sjulian 2550107120Sjulian return (error); 2551107120Sjulian} /* ng_btsocket_l2cap_send2 */ 2552107120Sjulian 2553107120Sjulian/* 2554107120Sjulian * Get socket address 2555107120Sjulian */ 2556107120Sjulian 2557107120Sjulianint 2558107120Sjulianng_btsocket_l2cap_sockaddr(struct socket *so, struct sockaddr **nam) 2559107120Sjulian{ 2560107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2561107120Sjulian struct sockaddr_l2cap sa; 2562107120Sjulian 2563107120Sjulian if (pcb == NULL) 2564107120Sjulian return (EINVAL); 2565107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2566107120Sjulian return (EINVAL); 2567107120Sjulian 2568107120Sjulian bcopy(&pcb->src, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr)); 2569107120Sjulian sa.l2cap_psm = htole16(pcb->psm); 2570107120Sjulian sa.l2cap_len = sizeof(sa); 2571107120Sjulian sa.l2cap_family = AF_BLUETOOTH; 2572107120Sjulian 2573126425Srwatson *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 2574107120Sjulian 2575107120Sjulian return ((*nam == NULL)? ENOMEM : 0); 2576107120Sjulian} /* ng_btsocket_l2cap_sockaddr */ 2577107120Sjulian 2578107120Sjulian/***************************************************************************** 2579107120Sjulian ***************************************************************************** 2580107120Sjulian ** Misc. functions 2581107120Sjulian ***************************************************************************** 2582107120Sjulian *****************************************************************************/ 2583107120Sjulian 2584107120Sjulian/* 2585107120Sjulian * Look for the socket that listens on given PSM and bdaddr. Returns exact or 2586114878Sjulian * close match (if any). Caller must hold ng_btsocket_l2cap_sockets_mtx. 2587107120Sjulian */ 2588107120Sjulian 2589107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2590107120Sjulianng_btsocket_l2cap_pcb_by_addr(bdaddr_p bdaddr, int psm) 2591107120Sjulian{ 2592107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL, p1 = NULL; 2593107120Sjulian 2594114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2595107120Sjulian 2596107120Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) { 2597107120Sjulian if (p->so == NULL || !(p->so->so_options & SO_ACCEPTCONN) || 2598107120Sjulian p->psm != psm) 2599107120Sjulian continue; 2600107120Sjulian 2601107120Sjulian if (bcmp(&p->src, bdaddr, sizeof(p->src)) == 0) 2602107120Sjulian break; 2603107120Sjulian 2604107120Sjulian if (bcmp(&p->src, NG_HCI_BDADDR_ANY, sizeof(p->src)) == 0) 2605107120Sjulian p1 = p; 2606107120Sjulian } 2607107120Sjulian 2608107120Sjulian return ((p != NULL)? p : p1); 2609107120Sjulian} /* ng_btsocket_l2cap_pcb_by_addr */ 2610107120Sjulian 2611107120Sjulian/* 2612114878Sjulian * Look for the socket that has given token. 2613114878Sjulian * Caller must hold ng_btsocket_l2cap_sockets_mtx. 2614107120Sjulian */ 2615107120Sjulian 2616107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2617107120Sjulianng_btsocket_l2cap_pcb_by_token(u_int32_t token) 2618107120Sjulian{ 2619107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL; 2620107120Sjulian 2621114878Sjulian if (token == 0) 2622114878Sjulian return (NULL); 2623107120Sjulian 2624114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2625107120Sjulian 2626114878Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) 2627114878Sjulian if (p->token == token) 2628114878Sjulian break; 2629107120Sjulian 2630107120Sjulian return (p); 2631107120Sjulian} /* ng_btsocket_l2cap_pcb_by_token */ 2632107120Sjulian 2633107120Sjulian/* 2634114878Sjulian * Look for the socket that assigned to given source address and channel ID. 2635114878Sjulian * Caller must hold ng_btsocket_l2cap_sockets_mtx 2636107120Sjulian */ 2637107120Sjulian 2638107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2639107120Sjulianng_btsocket_l2cap_pcb_by_cid(bdaddr_p src, int cid) 2640107120Sjulian{ 2641107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL; 2642107120Sjulian 2643114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2644107120Sjulian 2645107120Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) 2646107120Sjulian if (p->cid == cid && bcmp(src, &p->src, sizeof(p->src)) == 0) 2647107120Sjulian break; 2648107120Sjulian 2649107120Sjulian return (p); 2650107120Sjulian} /* ng_btsocket_l2cap_pcb_by_cid */ 2651107120Sjulian 2652107120Sjulian/* 2653107120Sjulian * Set timeout on socket 2654107120Sjulian */ 2655107120Sjulian 2656107120Sjulianstatic void 2657107120Sjulianng_btsocket_l2cap_timeout(ng_btsocket_l2cap_pcb_p pcb) 2658107120Sjulian{ 2659107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2660107120Sjulian 2661107120Sjulian if (!(pcb->flags & NG_BTSOCKET_L2CAP_TIMO)) { 2662107120Sjulian pcb->flags |= NG_BTSOCKET_L2CAP_TIMO; 2663107120Sjulian pcb->timo = timeout(ng_btsocket_l2cap_process_timeout, pcb, 2664107120Sjulian bluetooth_l2cap_ertx_timeout()); 2665107120Sjulian } else 2666107120Sjulian KASSERT(0, 2667107120Sjulian("%s: Duplicated socket timeout?!\n", __func__)); 2668107120Sjulian} /* ng_btsocket_l2cap_timeout */ 2669107120Sjulian 2670107120Sjulian/* 2671107120Sjulian * Unset timeout on socket 2672107120Sjulian */ 2673107120Sjulian 2674107120Sjulianstatic void 2675107120Sjulianng_btsocket_l2cap_untimeout(ng_btsocket_l2cap_pcb_p pcb) 2676107120Sjulian{ 2677107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2678107120Sjulian 2679107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) { 2680107120Sjulian untimeout(ng_btsocket_l2cap_process_timeout, pcb, pcb->timo); 2681107120Sjulian pcb->flags &= ~NG_BTSOCKET_L2CAP_TIMO; 2682107120Sjulian } else 2683107120Sjulian KASSERT(0, 2684107120Sjulian("%s: No socket timeout?!\n", __func__)); 2685107120Sjulian} /* ng_btsocket_l2cap_untimeout */ 2686107120Sjulian 2687107120Sjulian/* 2688107120Sjulian * Process timeout on socket 2689107120Sjulian */ 2690107120Sjulian 2691107120Sjulianstatic void 2692107120Sjulianng_btsocket_l2cap_process_timeout(void *xpcb) 2693107120Sjulian{ 2694161623Semax ng_btsocket_l2cap_pcb_p pcb = (ng_btsocket_l2cap_pcb_p) xpcb; 2695107120Sjulian 2696107120Sjulian mtx_lock(&pcb->pcb_mtx); 2697107120Sjulian 2698107120Sjulian pcb->flags &= ~NG_BTSOCKET_L2CAP_TIMO; 2699107120Sjulian pcb->so->so_error = ETIMEDOUT; 2700107120Sjulian 2701107120Sjulian switch (pcb->state) { 2702107120Sjulian case NG_BTSOCKET_L2CAP_CONNECTING: 2703107120Sjulian case NG_BTSOCKET_L2CAP_CONFIGURING: 2704107120Sjulian /* Send disconnect request with "zero" token */ 2705107120Sjulian if (pcb->cid != 0) 2706107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 2707107120Sjulian 2708107120Sjulian /* ... and close the socket */ 2709107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2710107120Sjulian soisdisconnected(pcb->so); 2711107120Sjulian break; 2712107120Sjulian 2713107120Sjulian case NG_BTSOCKET_L2CAP_OPEN: 2714107120Sjulian /* Send timeout - drop packet and wakeup sender */ 2715107120Sjulian sbdroprecord(&pcb->so->so_snd); 2716107120Sjulian sowwakeup(pcb->so); 2717107120Sjulian break; 2718107120Sjulian 2719107120Sjulian case NG_BTSOCKET_L2CAP_DISCONNECTING: 2720107120Sjulian /* Disconnect timeout - disconnect the socket anyway */ 2721107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2722107120Sjulian soisdisconnected(pcb->so); 2723107120Sjulian break; 2724107120Sjulian 2725107120Sjulian default: 2726107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2727107120Sjulian"%s: Invalid socket state=%d\n", __func__, pcb->state); 2728107120Sjulian break; 2729107120Sjulian } 2730107120Sjulian 2731107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2732107120Sjulian} /* ng_btsocket_l2cap_process_timeout */ 2733107120Sjulian 2734107120Sjulian/* 2735107120Sjulian * Translate HCI/L2CAP error code into "errno" code 2736107120Sjulian * XXX Note: Some L2CAP and HCI error codes have the same value, but 2737107120Sjulian * different meaning 2738107120Sjulian */ 2739107120Sjulian 2740107120Sjulianstatic int 2741107120Sjulianng_btsocket_l2cap_result2errno(int result) 2742107120Sjulian{ 2743107120Sjulian switch (result) { 2744107120Sjulian case 0x00: /* No error */ 2745107120Sjulian return (0); 2746107120Sjulian 2747107120Sjulian case 0x01: /* Unknown HCI command */ 2748107120Sjulian return (ENODEV); 2749107120Sjulian 2750107120Sjulian case 0x02: /* No connection */ 2751107120Sjulian return (ENOTCONN); 2752107120Sjulian 2753107120Sjulian case 0x03: /* Hardware failure */ 2754107120Sjulian return (EIO); 2755107120Sjulian 2756107120Sjulian case 0x04: /* Page timeout */ 2757107120Sjulian return (EHOSTDOWN); 2758107120Sjulian 2759107120Sjulian case 0x05: /* Authentication failure */ 2760107120Sjulian case 0x06: /* Key missing */ 2761107120Sjulian case 0x18: /* Pairing not allowed */ 2762107120Sjulian case 0x21: /* Role change not allowed */ 2763107120Sjulian case 0x24: /* LMP PSU not allowed */ 2764107120Sjulian case 0x25: /* Encryption mode not acceptable */ 2765107120Sjulian case 0x26: /* Unit key used */ 2766107120Sjulian return (EACCES); 2767107120Sjulian 2768107120Sjulian case 0x07: /* Memory full */ 2769107120Sjulian return (ENOMEM); 2770107120Sjulian 2771107120Sjulian case 0x08: /* Connection timeout */ 2772107120Sjulian case 0x10: /* Host timeout */ 2773107120Sjulian case 0x22: /* LMP response timeout */ 2774107120Sjulian case 0xee: /* HCI timeout */ 2775107120Sjulian case 0xeeee: /* L2CAP timeout */ 2776107120Sjulian return (ETIMEDOUT); 2777107120Sjulian 2778107120Sjulian case 0x09: /* Max number of connections */ 2779107120Sjulian case 0x0a: /* Max number of SCO connections to a unit */ 2780107120Sjulian return (EMLINK); 2781107120Sjulian 2782107120Sjulian case 0x0b: /* ACL connection already exists */ 2783107120Sjulian return (EEXIST); 2784107120Sjulian 2785107120Sjulian case 0x0c: /* Command disallowed */ 2786107120Sjulian return (EBUSY); 2787107120Sjulian 2788107120Sjulian case 0x0d: /* Host rejected due to limited resources */ 2789107120Sjulian case 0x0e: /* Host rejected due to securiity reasons */ 2790107120Sjulian case 0x0f: /* Host rejected due to remote unit is a personal unit */ 2791107120Sjulian case 0x1b: /* SCO offset rejected */ 2792107120Sjulian case 0x1c: /* SCO interval rejected */ 2793107120Sjulian case 0x1d: /* SCO air mode rejected */ 2794107120Sjulian return (ECONNREFUSED); 2795107120Sjulian 2796107120Sjulian case 0x11: /* Unsupported feature or parameter value */ 2797107120Sjulian case 0x19: /* Unknown LMP PDU */ 2798107120Sjulian case 0x1a: /* Unsupported remote feature */ 2799107120Sjulian case 0x20: /* Unsupported LMP parameter value */ 2800107120Sjulian case 0x27: /* QoS is not supported */ 2801107120Sjulian case 0x29: /* Paring with unit key not supported */ 2802107120Sjulian return (EOPNOTSUPP); 2803107120Sjulian 2804107120Sjulian case 0x12: /* Invalid HCI command parameter */ 2805107120Sjulian case 0x1e: /* Invalid LMP parameters */ 2806107120Sjulian return (EINVAL); 2807107120Sjulian 2808107120Sjulian case 0x13: /* Other end terminated connection: User ended connection */ 2809107120Sjulian case 0x14: /* Other end terminated connection: Low resources */ 2810107120Sjulian case 0x15: /* Other end terminated connection: About to power off */ 2811107120Sjulian return (ECONNRESET); 2812107120Sjulian 2813107120Sjulian case 0x16: /* Connection terminated by local host */ 2814107120Sjulian return (ECONNABORTED); 2815107120Sjulian 2816107120Sjulian#if 0 /* XXX not yet */ 2817107120Sjulian case 0x17: /* Repeated attempts */ 2818107120Sjulian case 0x1f: /* Unspecified error */ 2819107120Sjulian case 0x23: /* LMP error transaction collision */ 2820107120Sjulian case 0x28: /* Instant passed */ 2821107120Sjulian#endif 2822107120Sjulian } 2823107120Sjulian 2824107120Sjulian return (ENOSYS); 2825107120Sjulian} /* ng_btsocket_l2cap_result2errno */ 2826107120Sjulian 2827