ng_btsocket_l2cap.c revision 281198
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 281198 2015-04-07 10:22:56Z takawata $ 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); 114227309Sedstatic SYSCTL_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 187281198Stakawata (u_int32_t, ng_btsocket_l2cap_rtentry_p, bdaddr_p, int, 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); 212281198Stakawatastatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_cid (bdaddr_p, int,int); 213107120Sjulianstatic int ng_btsocket_l2cap_result2errno(int); 214107120Sjulian 215281198Stakawatastatic int ng_btsock_l2cap_addrtype_to_linktype(int addrtype); 216281198Stakawatastatic int ng_btsock_l2cap_pcb_to_idtype(struct ng_btsocket_l2cap_pcb *); 217114878Sjulian#define ng_btsocket_l2cap_wakeup_input_task() \ 218114878Sjulian taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_queue_task) 219114878Sjulian 220114878Sjulian#define ng_btsocket_l2cap_wakeup_route_task() \ 221114878Sjulian taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_rt_task) 222114878Sjulian 223281198Stakawata 224281198Stakawataint ng_btsock_l2cap_pcb_to_idtype(struct ng_btsocket_l2cap_pcb *pcb) 225281198Stakawata{ 226281198Stakawata if(pcb->dsttype == BDADDR_BREDR){ 227281198Stakawata return NG_L2CAP_L2CA_IDTYPE_BREDR; 228281198Stakawata }else if(pcb->psm == 0){ 229281198Stakawata return NG_L2CAP_L2CA_IDTYPE_ATT; 230281198Stakawata }else{ 231281198Stakawata return NG_L2CAP_L2CA_IDTYPE_LE; 232281198Stakawata } 233281198Stakawata} 234281198Stakawata 235281198Stakawataint ng_btsock_l2cap_addrtype_to_linktype(int addrtype) 236281198Stakawata{ 237281198Stakawata switch(addrtype){ 238281198Stakawata case BDADDR_LE_PUBLIC: 239281198Stakawata return NG_HCI_LINK_LE_PUBLIC; 240281198Stakawata case BDADDR_LE_RANDOM: 241281198Stakawata return NG_HCI_LINK_LE_RANDOM; 242281198Stakawata default: 243281198Stakawata return NG_HCI_LINK_ACL; 244281198Stakawata } 245281198Stakawata} 246281198Stakawata 247281198Stakawata 248107120Sjulian/***************************************************************************** 249107120Sjulian ***************************************************************************** 250107120Sjulian ** Netgraph node interface 251107120Sjulian ***************************************************************************** 252107120Sjulian *****************************************************************************/ 253107120Sjulian 254107120Sjulian/* 255107120Sjulian * Netgraph node constructor. Do not allow to create node of this type. 256107120Sjulian */ 257107120Sjulian 258107120Sjulianstatic int 259107120Sjulianng_btsocket_l2cap_node_constructor(node_p node) 260107120Sjulian{ 261107120Sjulian return (EINVAL); 262107120Sjulian} /* ng_btsocket_l2cap_node_constructor */ 263107120Sjulian 264107120Sjulian/* 265107120Sjulian * Do local shutdown processing. Let old node go and create new fresh one. 266107120Sjulian */ 267107120Sjulian 268107120Sjulianstatic int 269107120Sjulianng_btsocket_l2cap_node_shutdown(node_p node) 270107120Sjulian{ 271107120Sjulian int error = 0; 272107120Sjulian 273107120Sjulian NG_NODE_UNREF(node); 274107120Sjulian 275107120Sjulian /* Create new node */ 276107120Sjulian error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_node); 277107120Sjulian if (error != 0) { 278107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 279107120Sjulian"%s: Could not create Netgraph node, error=%d\n", __func__, error); 280107120Sjulian 281107120Sjulian ng_btsocket_l2cap_node = NULL; 282107120Sjulian 283107120Sjulian return (error); 284107120Sjulian } 285107120Sjulian 286107120Sjulian error = ng_name_node(ng_btsocket_l2cap_node, 287107120Sjulian NG_BTSOCKET_L2CAP_NODE_TYPE); 288123812Salfred if (error != 0) { 289107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 290107120Sjulian"%s: Could not name Netgraph node, error=%d\n", __func__, error); 291107120Sjulian 292107120Sjulian NG_NODE_UNREF(ng_btsocket_l2cap_node); 293107120Sjulian ng_btsocket_l2cap_node = NULL; 294107120Sjulian 295107120Sjulian return (error); 296107120Sjulian } 297107120Sjulian 298107120Sjulian return (0); 299107120Sjulian} /* ng_btsocket_l2cap_node_shutdown */ 300107120Sjulian 301107120Sjulian/* 302107120Sjulian * We allow any hook to be connected to the node. 303107120Sjulian */ 304107120Sjulian 305107120Sjulianstatic int 306107120Sjulianng_btsocket_l2cap_node_newhook(node_p node, hook_p hook, char const *name) 307107120Sjulian{ 308107120Sjulian return (0); 309107120Sjulian} /* ng_btsocket_l2cap_node_newhook */ 310107120Sjulian 311107120Sjulian/* 312107120Sjulian * Just say "YEP, that's OK by me!" 313107120Sjulian */ 314107120Sjulian 315107120Sjulianstatic int 316107120Sjulianng_btsocket_l2cap_node_connect(hook_p hook) 317107120Sjulian{ 318107120Sjulian NG_HOOK_SET_PRIVATE(hook, NULL); 319107120Sjulian NG_HOOK_REF(hook); /* Keep extra reference to the hook */ 320107120Sjulian 321107120Sjulian#if 0 322107120Sjulian NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook)); 323107120Sjulian NG_HOOK_FORCE_QUEUE(hook); 324107120Sjulian#endif 325107120Sjulian 326107120Sjulian return (0); 327107120Sjulian} /* ng_btsocket_l2cap_node_connect */ 328107120Sjulian 329107120Sjulian/* 330107120Sjulian * Hook disconnection. Schedule route cleanup task 331107120Sjulian */ 332107120Sjulian 333107120Sjulianstatic int 334107120Sjulianng_btsocket_l2cap_node_disconnect(hook_p hook) 335107120Sjulian{ 336107120Sjulian /* 337107120Sjulian * If hook has private information than we must have this hook in 338107120Sjulian * the routing table and must schedule cleaning for the routing table. 339107120Sjulian * Otherwise hook was connected but we never got "hook_info" message, 340107120Sjulian * so we have never added this hook to the routing table and it save 341107120Sjulian * to just delete it. 342107120Sjulian */ 343107120Sjulian 344107120Sjulian if (NG_HOOK_PRIVATE(hook) != NULL) 345114878Sjulian return (ng_btsocket_l2cap_wakeup_route_task()); 346107120Sjulian 347107120Sjulian NG_HOOK_UNREF(hook); /* Remove extra reference */ 348107120Sjulian 349107120Sjulian return (0); 350107120Sjulian} /* ng_btsocket_l2cap_node_disconnect */ 351107120Sjulian 352107120Sjulian/* 353107120Sjulian * Process incoming messages 354107120Sjulian */ 355107120Sjulian 356107120Sjulianstatic int 357107120Sjulianng_btsocket_l2cap_node_rcvmsg(node_p node, item_p item, hook_p hook) 358107120Sjulian{ 359107120Sjulian struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 360107120Sjulian int error = 0; 361107120Sjulian 362107120Sjulian if (msg != NULL && msg->header.typecookie == NGM_L2CAP_COOKIE) { 363107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 364107120Sjulian if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_queue)) { 365107120Sjulian NG_BTSOCKET_L2CAP_ERR( 366107120Sjulian"%s: Input queue is full (msg)\n", __func__); 367107120Sjulian 368107120Sjulian NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_queue); 369107120Sjulian NG_FREE_ITEM(item); 370107120Sjulian error = ENOBUFS; 371107120Sjulian } else { 372107120Sjulian if (hook != NULL) { 373107120Sjulian NG_HOOK_REF(hook); 374107120Sjulian NGI_SET_HOOK(item, hook); 375107120Sjulian } 376107120Sjulian 377107120Sjulian NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_queue, item); 378114878Sjulian error = ng_btsocket_l2cap_wakeup_input_task(); 379107120Sjulian } 380107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 381107120Sjulian } else { 382107120Sjulian NG_FREE_ITEM(item); 383107120Sjulian error = EINVAL; 384107120Sjulian } 385107120Sjulian 386107120Sjulian return (error); 387107120Sjulian} /* ng_btsocket_l2cap_node_rcvmsg */ 388107120Sjulian 389107120Sjulian/* 390107120Sjulian * Receive data on a hook 391107120Sjulian */ 392107120Sjulian 393107120Sjulianstatic int 394107120Sjulianng_btsocket_l2cap_node_rcvdata(hook_p hook, item_p item) 395107120Sjulian{ 396107120Sjulian int error = 0; 397107120Sjulian 398107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 399107120Sjulian if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_queue)) { 400107120Sjulian NG_BTSOCKET_L2CAP_ERR( 401107120Sjulian"%s: Input queue is full (data)\n", __func__); 402107120Sjulian 403107120Sjulian NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_queue); 404107120Sjulian NG_FREE_ITEM(item); 405107120Sjulian error = ENOBUFS; 406107120Sjulian } else { 407107120Sjulian NG_HOOK_REF(hook); 408107120Sjulian NGI_SET_HOOK(item, hook); 409107120Sjulian 410107120Sjulian NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_queue, item); 411114878Sjulian error = ng_btsocket_l2cap_wakeup_input_task(); 412107120Sjulian } 413107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 414107120Sjulian 415107120Sjulian return (error); 416107120Sjulian} /* ng_btsocket_l2cap_node_rcvdata */ 417107120Sjulian 418107120Sjulian/* 419107120Sjulian * Process L2CA_Connect respose. Socket layer must have initiated connection, 420107120Sjulian * so we have to have a socket associated with message token. 421107120Sjulian */ 422107120Sjulian 423107120Sjulianstatic int 424107120Sjulianng_btsocket_l2cap_process_l2ca_con_req_rsp(struct ng_mesg *msg, 425161623Semax ng_btsocket_l2cap_rtentry_p rt) 426107120Sjulian{ 427107120Sjulian ng_l2cap_l2ca_con_op *op = NULL; 428107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 429107120Sjulian int error = 0; 430107120Sjulian 431107120Sjulian if (msg->header.arglen != sizeof(*op)) 432107120Sjulian return (EMSGSIZE); 433107120Sjulian 434107120Sjulian op = (ng_l2cap_l2ca_con_op *)(msg->data); 435107120Sjulian 436114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 437114878Sjulian 438107120Sjulian /* Look for the socket with the token */ 439107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 440114878Sjulian if (pcb == NULL) { 441114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 442107120Sjulian return (ENOENT); 443114878Sjulian } 444107120Sjulian 445107120Sjulian mtx_lock(&pcb->pcb_mtx); 446107120Sjulian 447107120Sjulian NG_BTSOCKET_L2CAP_INFO( 448107120Sjulian"%s: Got L2CA_Connect response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 449107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, status=%d, " \ 450107120Sjulian"state=%d\n", __func__, msg->header.token, 451107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 452107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 453107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 454107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 455107120Sjulian pcb->psm, op->lcid, op->result, op->status, 456107120Sjulian pcb->state); 457107120Sjulian 458107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONNECTING) { 459107120Sjulian mtx_unlock(&pcb->pcb_mtx); 460114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 461114878Sjulian 462107120Sjulian return (ENOENT); 463107120Sjulian } 464107120Sjulian 465107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 466107120Sjulian 467107120Sjulian if (op->result == NG_L2CAP_PENDING) { 468107120Sjulian ng_btsocket_l2cap_timeout(pcb); 469107120Sjulian mtx_unlock(&pcb->pcb_mtx); 470114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 471114878Sjulian 472107120Sjulian return (0); 473107120Sjulian } 474107120Sjulian 475281198Stakawata if (op->result == NG_L2CAP_SUCCESS){ 476281198Stakawata if(ng_btsock_l2cap_pcb_to_idtype(pcb) == 477281198Stakawata NG_L2CAP_L2CA_IDTYPE_ATT){ 478281198Stakawata pcb->state = NG_BTSOCKET_L2CAP_OPEN; 479281198Stakawata soisconnected(pcb->so); 480281198Stakawata pcb->cid = op->lcid; 481281198Stakawata }else{ 482281198Stakawata /* 483281198Stakawata * Channel is now open, so update local channel ID and 484281198Stakawata * start configuration process. Source and destination 485281198Stakawata * addresses as well as route must be already set. 486281198Stakawata */ 487281198Stakawata 488281198Stakawata pcb->cid = op->lcid; 489281198Stakawata 490281198Stakawata error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb); 491281198Stakawata if (error != 0) { 492281198Stakawata /* Send disconnect request with "zero" token */ 493281198Stakawata ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 494281198Stakawata 495281198Stakawata /* ... and close the socket */ 496281198Stakawata pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 497281198Stakawata soisdisconnected(pcb->so); 498281198Stakawata } else { 499281198Stakawata pcb->cfg_state = NG_BTSOCKET_L2CAP_CFG_IN_SENT; 500281198Stakawata pcb->state = NG_BTSOCKET_L2CAP_CONFIGURING; 501281198Stakawata 502281198Stakawata ng_btsocket_l2cap_timeout(pcb); 503281198Stakawata } 504107120Sjulian } 505107120Sjulian } else { 506107120Sjulian /* 507107120Sjulian * We have failed to open connection, so convert result 508107120Sjulian * code to "errno" code and disconnect the socket. Channel 509107120Sjulian * already has been closed. 510107120Sjulian */ 511107120Sjulian 512107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 513107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 514107120Sjulian soisdisconnected(pcb->so); 515107120Sjulian } 516107120Sjulian 517107120Sjulian mtx_unlock(&pcb->pcb_mtx); 518114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 519107120Sjulian 520107120Sjulian return (error); 521107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_con_req_rsp */ 522107120Sjulian 523107120Sjulian/* 524107120Sjulian * Process L2CA_ConnectRsp response 525107120Sjulian */ 526107120Sjulian 527107120Sjulianstatic int 528107120Sjulianng_btsocket_l2cap_process_l2ca_con_rsp_rsp(struct ng_mesg *msg, 529161623Semax ng_btsocket_l2cap_rtentry_p rt) 530107120Sjulian{ 531107120Sjulian ng_l2cap_l2ca_con_rsp_op *op = NULL; 532107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 533107120Sjulian 534107120Sjulian if (msg->header.arglen != sizeof(*op)) 535107120Sjulian return (EMSGSIZE); 536107120Sjulian 537107120Sjulian op = (ng_l2cap_l2ca_con_rsp_op *)(msg->data); 538107120Sjulian 539114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 540114878Sjulian 541107120Sjulian /* Look for the socket with the token */ 542107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 543114878Sjulian if (pcb == NULL) { 544114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 545107120Sjulian return (ENOENT); 546114878Sjulian } 547107120Sjulian 548107120Sjulian mtx_lock(&pcb->pcb_mtx); 549107120Sjulian 550107120Sjulian NG_BTSOCKET_L2CAP_INFO( 551107120Sjulian"%s: Got L2CA_ConnectRsp response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 552107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d\n", 553107120Sjulian __func__, msg->header.token, 554107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 555107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 556107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 557107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 558107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state); 559107120Sjulian 560107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONNECTING) { 561107120Sjulian mtx_unlock(&pcb->pcb_mtx); 562114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 563114878Sjulian 564107120Sjulian return (ENOENT); 565107120Sjulian } 566107120Sjulian 567107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 568107120Sjulian 569107120Sjulian /* Check the result and disconnect the socket on failure */ 570107120Sjulian if (op->result != NG_L2CAP_SUCCESS) { 571107120Sjulian /* Close the socket - channel already closed */ 572107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 573107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 574107120Sjulian soisdisconnected(pcb->so); 575107120Sjulian } else { 576107120Sjulian /* Move to CONFIGURING state and wait for CONFIG_IND */ 577107120Sjulian pcb->cfg_state = 0; 578107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONFIGURING; 579107120Sjulian ng_btsocket_l2cap_timeout(pcb); 580107120Sjulian } 581107120Sjulian 582107120Sjulian mtx_unlock(&pcb->pcb_mtx); 583114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 584107120Sjulian 585107120Sjulian return (0); 586107120Sjulian} /* ng_btsocket_process_l2ca_con_rsp_rsp */ 587107120Sjulian 588107120Sjulian/* 589107120Sjulian * Process L2CA_Connect indicator. Find socket that listens on address 590107120Sjulian * and PSM. Find exact or closest match. Create new socket and initiate 591107120Sjulian * connection. 592107120Sjulian */ 593107120Sjulian 594107120Sjulianstatic int 595107120Sjulianng_btsocket_l2cap_process_l2ca_con_ind(struct ng_mesg *msg, 596161623Semax ng_btsocket_l2cap_rtentry_p rt) 597107120Sjulian{ 598107120Sjulian ng_l2cap_l2ca_con_ind_ip *ip = NULL; 599107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL, *pcb1 = NULL; 600107120Sjulian int error = 0; 601107120Sjulian u_int32_t token = 0; 602107120Sjulian u_int16_t result = 0; 603107120Sjulian 604107120Sjulian if (msg->header.arglen != sizeof(*ip)) 605107120Sjulian return (EMSGSIZE); 606107120Sjulian 607107120Sjulian ip = (ng_l2cap_l2ca_con_ind_ip *)(msg->data); 608107120Sjulian 609107120Sjulian NG_BTSOCKET_L2CAP_INFO( 610107120Sjulian"%s: Got L2CA_Connect indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 611107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, ident=%d\n", 612107120Sjulian __func__, 613107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 614107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 615107120Sjulian ip->bdaddr.b[5], ip->bdaddr.b[4], ip->bdaddr.b[3], 616107120Sjulian ip->bdaddr.b[2], ip->bdaddr.b[1], ip->bdaddr.b[0], 617107120Sjulian ip->psm, ip->lcid, ip->ident); 618114878Sjulian 619114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 620107120Sjulian 621107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_addr(&rt->src, ip->psm); 622107120Sjulian if (pcb != NULL) { 623107120Sjulian struct socket *so1 = NULL; 624107120Sjulian 625107120Sjulian mtx_lock(&pcb->pcb_mtx); 626107120Sjulian 627107120Sjulian /* 628107120Sjulian * First check the pending connections queue and if we have 629107120Sjulian * space then create new socket and set proper source address. 630107120Sjulian */ 631107120Sjulian 632218757Sbz if (pcb->so->so_qlen <= pcb->so->so_qlimit) { 633218757Sbz CURVNET_SET(pcb->so->so_vnet); 634107120Sjulian so1 = sonewconn(pcb->so, 0); 635218757Sbz CURVNET_RESTORE(); 636218757Sbz } 637107120Sjulian 638107120Sjulian if (so1 == NULL) { 639107120Sjulian result = NG_L2CAP_NO_RESOURCES; 640107120Sjulian goto respond; 641107120Sjulian } 642107120Sjulian 643107120Sjulian /* 644107120Sjulian * If we got here than we have created new socket. So complete 645107120Sjulian * connection. If we we listening on specific address then copy 646107120Sjulian * source address from listening socket, otherwise copy source 647107120Sjulian * address from hook's routing information. 648107120Sjulian */ 649107120Sjulian 650107120Sjulian pcb1 = so2l2cap_pcb(so1); 651107120Sjulian KASSERT((pcb1 != NULL), 652107120Sjulian("%s: pcb1 == NULL\n", __func__)); 653107120Sjulian 654114878Sjulian mtx_lock(&pcb1->pcb_mtx); 655107120Sjulian 656107120Sjulian if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)) != 0) 657107120Sjulian bcopy(&pcb->src, &pcb1->src, sizeof(pcb1->src)); 658107120Sjulian else 659107120Sjulian bcopy(&rt->src, &pcb1->src, sizeof(pcb1->src)); 660107120Sjulian 661107120Sjulian pcb1->flags &= ~NG_BTSOCKET_L2CAP_CLIENT; 662107120Sjulian 663107120Sjulian bcopy(&ip->bdaddr, &pcb1->dst, sizeof(pcb1->dst)); 664107120Sjulian pcb1->psm = ip->psm; 665107120Sjulian pcb1->cid = ip->lcid; 666107120Sjulian pcb1->rt = rt; 667107120Sjulian 668107120Sjulian /* Copy socket settings */ 669107120Sjulian pcb1->imtu = pcb->imtu; 670107120Sjulian bcopy(&pcb->oflow, &pcb1->oflow, sizeof(pcb1->oflow)); 671107120Sjulian pcb1->flush_timo = pcb->flush_timo; 672107120Sjulian 673107120Sjulian token = pcb1->token; 674107120Sjulian } else 675107120Sjulian /* Nobody listens on requested BDADDR/PSM */ 676107120Sjulian result = NG_L2CAP_PSM_NOT_SUPPORTED; 677107120Sjulian 678107120Sjulianrespond: 679107120Sjulian error = ng_btsocket_l2cap_send_l2ca_con_rsp_req(token, rt, 680281198Stakawata &ip->bdaddr, 681281198Stakawata ip->ident, ip->lcid, 682281198Stakawata result,ip->linktype); 683107120Sjulian if (pcb1 != NULL) { 684107120Sjulian if (error != 0) { 685107120Sjulian pcb1->so->so_error = error; 686107120Sjulian pcb1->state = NG_BTSOCKET_L2CAP_CLOSED; 687107120Sjulian soisdisconnected(pcb1->so); 688107120Sjulian } else { 689107120Sjulian pcb1->state = NG_BTSOCKET_L2CAP_CONNECTING; 690107120Sjulian soisconnecting(pcb1->so); 691107120Sjulian 692107120Sjulian ng_btsocket_l2cap_timeout(pcb1); 693107120Sjulian } 694107120Sjulian 695107120Sjulian mtx_unlock(&pcb1->pcb_mtx); 696107120Sjulian } 697107120Sjulian 698107120Sjulian if (pcb != NULL) 699107120Sjulian mtx_unlock(&pcb->pcb_mtx); 700107120Sjulian 701114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 702114878Sjulian 703107120Sjulian return (error); 704107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_con_ind */ 705107120Sjulian 706107120Sjulian/* 707107120Sjulian * Process L2CA_Config response 708107120Sjulian */ 709107120Sjulian 710107120Sjulianstatic int 711107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_req_rsp(struct ng_mesg *msg, 712161623Semax ng_btsocket_l2cap_rtentry_p rt) 713107120Sjulian{ 714107120Sjulian ng_l2cap_l2ca_cfg_op *op = NULL; 715107120Sjulian ng_btsocket_l2cap_pcb_p pcb = NULL; 716107120Sjulian 717107120Sjulian if (msg->header.arglen != sizeof(*op)) 718107120Sjulian return (EMSGSIZE); 719107120Sjulian 720107120Sjulian op = (ng_l2cap_l2ca_cfg_op *)(msg->data); 721107120Sjulian 722114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 723114878Sjulian 724107120Sjulian /* 725107120Sjulian * Socket must have issued a Configure request, so we must have a 726107120Sjulian * socket that wants to be configured. Use Netgraph message token 727107120Sjulian * to find it 728107120Sjulian */ 729107120Sjulian 730107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 731107120Sjulian if (pcb == NULL) { 732107120Sjulian /* 733107120Sjulian * XXX FIXME what to do here? We could not find a 734107120Sjulian * socket with requested token. We even can not send 735107120Sjulian * Disconnect, because we do not know channel ID 736107120Sjulian */ 737107120Sjulian 738114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 739107120Sjulian return (ENOENT); 740107120Sjulian } 741107120Sjulian 742107120Sjulian mtx_lock(&pcb->pcb_mtx); 743107120Sjulian 744107120Sjulian NG_BTSOCKET_L2CAP_INFO( 745107120Sjulian"%s: Got L2CA_Config response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 746107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d, " \ 747107120Sjulian"cfg_state=%x\n", 748107120Sjulian __func__, msg->header.token, 749107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 750107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 751107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 752107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 753107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state, pcb->cfg_state); 754107120Sjulian 755107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 756107120Sjulian mtx_unlock(&pcb->pcb_mtx); 757114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 758114878Sjulian 759107120Sjulian return (ENOENT); 760107120Sjulian } 761107120Sjulian 762107120Sjulian if (op->result == NG_L2CAP_SUCCESS) { 763107120Sjulian /* 764107120Sjulian * XXX FIXME Actually set flush and link timeout. 765107120Sjulian * Set QoS here if required. Resolve conficts (flush_timo). 766107120Sjulian * Save incoming MTU (peer's outgoing MTU) and outgoing flow 767107120Sjulian * spec. 768107120Sjulian */ 769107120Sjulian 770107120Sjulian pcb->imtu = op->imtu; 771107120Sjulian bcopy(&op->oflow, &pcb->oflow, sizeof(pcb->oflow)); 772107120Sjulian pcb->flush_timo = op->flush_timo; 773107120Sjulian 774107120Sjulian /* 775107120Sjulian * We have configured incoming side, so record it and check 776107120Sjulian * if configuration is complete. If complete then mark socket 777107120Sjulian * as connected, otherwise wait for the peer. 778107120Sjulian */ 779107120Sjulian 780107120Sjulian pcb->cfg_state &= ~NG_BTSOCKET_L2CAP_CFG_IN_SENT; 781107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_IN; 782107120Sjulian 783107120Sjulian if (pcb->cfg_state == NG_BTSOCKET_L2CAP_CFG_BOTH) { 784107120Sjulian /* Configuration complete - mark socket as open */ 785107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 786107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_OPEN; 787107120Sjulian soisconnected(pcb->so); 788107120Sjulian } 789107120Sjulian } else { 790107120Sjulian /* 791107120Sjulian * Something went wrong. Could be unacceptable parameters, 792107120Sjulian * reject or unknown option. That's too bad, but we will 793107120Sjulian * not negotiate. Send Disconnect and close the channel. 794107120Sjulian */ 795107120Sjulian 796107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 797107120Sjulian 798107120Sjulian switch (op->result) { 799107120Sjulian case NG_L2CAP_UNACCEPTABLE_PARAMS: 800107120Sjulian case NG_L2CAP_UNKNOWN_OPTION: 801107120Sjulian pcb->so->so_error = EINVAL; 802107120Sjulian break; 803107120Sjulian 804107120Sjulian default: 805107120Sjulian pcb->so->so_error = ECONNRESET; 806107120Sjulian break; 807107120Sjulian } 808107120Sjulian 809107120Sjulian /* Send disconnect with "zero" token */ 810107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 811107120Sjulian 812107120Sjulian /* ... and close the socket */ 813107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 814107120Sjulian soisdisconnected(pcb->so); 815107120Sjulian } 816107120Sjulian 817107120Sjulian mtx_unlock(&pcb->pcb_mtx); 818114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 819107120Sjulian 820107120Sjulian return (0); 821107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_cfg_req_rsp */ 822107120Sjulian 823107120Sjulian/* 824107120Sjulian * Process L2CA_ConfigRsp response 825107120Sjulian */ 826107120Sjulian 827107120Sjulianstatic int 828107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp(struct ng_mesg *msg, 829161623Semax ng_btsocket_l2cap_rtentry_p rt) 830107120Sjulian{ 831107120Sjulian ng_l2cap_l2ca_cfg_rsp_op *op = NULL; 832107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 833107120Sjulian int error = 0; 834107120Sjulian 835107120Sjulian if (msg->header.arglen != sizeof(*op)) 836107120Sjulian return (EMSGSIZE); 837107120Sjulian 838107120Sjulian op = (ng_l2cap_l2ca_cfg_rsp_op *)(msg->data); 839107120Sjulian 840114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 841114878Sjulian 842107120Sjulian /* Look for the socket with the token */ 843107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 844114878Sjulian if (pcb == NULL) { 845114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 846107120Sjulian return (ENOENT); 847114878Sjulian } 848107120Sjulian 849107120Sjulian mtx_lock(&pcb->pcb_mtx); 850107120Sjulian 851107120Sjulian NG_BTSOCKET_L2CAP_INFO( 852107120Sjulian"%s: Got L2CA_ConfigRsp response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 853107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d, " \ 854107120Sjulian"cfg_state=%x\n", 855107120Sjulian __func__, msg->header.token, 856107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 857107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 858107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 859107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 860107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state, pcb->cfg_state); 861107120Sjulian 862107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 863107120Sjulian mtx_unlock(&pcb->pcb_mtx); 864114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 865114878Sjulian 866107120Sjulian return (ENOENT); 867107120Sjulian } 868107120Sjulian 869107120Sjulian /* Check the result and disconnect socket of failure */ 870107120Sjulian if (op->result != NG_L2CAP_SUCCESS) 871107120Sjulian goto disconnect; 872107120Sjulian 873107120Sjulian /* 874107120Sjulian * Now we done with remote side configuration. Configure local 875107120Sjulian * side if we have not done it yet. 876107120Sjulian */ 877107120Sjulian 878107120Sjulian pcb->cfg_state &= ~NG_BTSOCKET_L2CAP_CFG_OUT_SENT; 879107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_OUT; 880107120Sjulian 881107120Sjulian if (pcb->cfg_state == NG_BTSOCKET_L2CAP_CFG_BOTH) { 882107120Sjulian /* Configuration complete - mask socket as open */ 883107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 884107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_OPEN; 885107120Sjulian soisconnected(pcb->so); 886107120Sjulian } else { 887107120Sjulian if (!(pcb->cfg_state & NG_BTSOCKET_L2CAP_CFG_IN_SENT)) { 888107120Sjulian /* Send L2CA_Config request - incoming path */ 889107120Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb); 890107120Sjulian if (error != 0) 891107120Sjulian goto disconnect; 892107120Sjulian 893107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_IN_SENT; 894107120Sjulian } 895107120Sjulian } 896107120Sjulian 897107120Sjulian mtx_unlock(&pcb->pcb_mtx); 898114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 899107120Sjulian 900107120Sjulian return (error); 901107120Sjulian 902107120Sjuliandisconnect: 903107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 904107120Sjulian 905107120Sjulian /* Send disconnect with "zero" token */ 906107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 907107120Sjulian 908107120Sjulian /* ... and close the socket */ 909107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 910107120Sjulian soisdisconnected(pcb->so); 911107120Sjulian 912107120Sjulian mtx_unlock(&pcb->pcb_mtx); 913114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 914107120Sjulian 915107120Sjulian return (error); 916107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp */ 917107120Sjulian 918107120Sjulian/* 919107120Sjulian * Process L2CA_Config indicator 920107120Sjulian */ 921107120Sjulian 922107120Sjulianstatic int 923107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_ind(struct ng_mesg *msg, 924161623Semax ng_btsocket_l2cap_rtentry_p rt) 925107120Sjulian{ 926107120Sjulian ng_l2cap_l2ca_cfg_ind_ip *ip = NULL; 927107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 928107120Sjulian int error = 0; 929107120Sjulian 930107120Sjulian if (msg->header.arglen != sizeof(*ip)) 931107120Sjulian return (EMSGSIZE); 932107120Sjulian 933107120Sjulian ip = (ng_l2cap_l2ca_cfg_ind_ip *)(msg->data); 934107120Sjulian 935114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 936114878Sjulian 937107120Sjulian /* Check for the open socket that has given channel ID */ 938281198Stakawata pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, ip->lcid, 939281198Stakawata NG_L2CAP_L2CA_IDTYPE_BREDR); 940114878Sjulian if (pcb == NULL) { 941114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 942107120Sjulian return (ENOENT); 943114878Sjulian } 944107120Sjulian 945107120Sjulian mtx_lock(&pcb->pcb_mtx); 946107120Sjulian 947107120Sjulian NG_BTSOCKET_L2CAP_INFO( 948107120Sjulian"%s: Got L2CA_Config indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 949107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, state=%d, cfg_state=%x\n", 950107120Sjulian __func__, 951107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 952107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 953107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 954107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 955107120Sjulian pcb->psm, pcb->cid, pcb->state, pcb->cfg_state); 956107120Sjulian 957107120Sjulian /* XXX FIXME re-configuration on open socket */ 958107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 959107120Sjulian mtx_unlock(&pcb->pcb_mtx); 960114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 961114878Sjulian 962107120Sjulian return (ENOENT); 963107120Sjulian } 964107120Sjulian 965107120Sjulian /* 966107120Sjulian * XXX FIXME Actually set flush and link timeout. Set QoS here if 967107120Sjulian * required. Resolve conficts (flush_timo). Note outgoing MTU (peer's 968107120Sjulian * incoming MTU) and incoming flow spec. 969107120Sjulian */ 970107120Sjulian 971107120Sjulian pcb->omtu = ip->omtu; 972107120Sjulian bcopy(&ip->iflow, &pcb->iflow, sizeof(pcb->iflow)); 973107120Sjulian pcb->flush_timo = ip->flush_timo; 974107120Sjulian 975107120Sjulian /* 976107120Sjulian * Send L2CA_Config response to our peer and check for the errors, 977107120Sjulian * if any send disconnect to close the channel. 978107120Sjulian */ 979107120Sjulian 980114878Sjulian if (!(pcb->cfg_state & NG_BTSOCKET_L2CAP_CFG_OUT_SENT)) { 981114878Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_rsp(pcb); 982114878Sjulian if (error != 0) { 983114878Sjulian ng_btsocket_l2cap_untimeout(pcb); 984107120Sjulian 985114878Sjulian pcb->so->so_error = error; 986107120Sjulian 987114878Sjulian /* Send disconnect with "zero" token */ 988114878Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 989107120Sjulian 990114878Sjulian /* ... and close the socket */ 991114878Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 992114878Sjulian soisdisconnected(pcb->so); 993114878Sjulian } else 994114878Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_OUT_SENT; 995107120Sjulian } 996107120Sjulian 997107120Sjulian mtx_unlock(&pcb->pcb_mtx); 998114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 999107120Sjulian 1000107120Sjulian return (error); 1001107120Sjulian} /* ng_btsocket_l2cap_process_l2cap_cfg_ind */ 1002107120Sjulian 1003107120Sjulian/* 1004107120Sjulian * Process L2CA_Disconnect response 1005107120Sjulian */ 1006107120Sjulian 1007107120Sjulianstatic int 1008107120Sjulianng_btsocket_l2cap_process_l2ca_discon_rsp(struct ng_mesg *msg, 1009161623Semax ng_btsocket_l2cap_rtentry_p rt) 1010107120Sjulian{ 1011107120Sjulian ng_l2cap_l2ca_discon_op *op = NULL; 1012107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1013107120Sjulian 1014107120Sjulian /* Check message */ 1015107120Sjulian if (msg->header.arglen != sizeof(*op)) 1016107120Sjulian return (EMSGSIZE); 1017107120Sjulian 1018107120Sjulian op = (ng_l2cap_l2ca_discon_op *)(msg->data); 1019107120Sjulian 1020114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1021114878Sjulian 1022107120Sjulian /* 1023107120Sjulian * Socket layer must have issued L2CA_Disconnect request, so there 1024107120Sjulian * must be a socket that wants to be disconnected. Use Netgraph 1025107120Sjulian * message token to find it. 1026107120Sjulian */ 1027107120Sjulian 1028107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 1029114878Sjulian if (pcb == NULL) { 1030114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1031107120Sjulian return (0); 1032114878Sjulian } 1033107120Sjulian 1034107120Sjulian mtx_lock(&pcb->pcb_mtx); 1035107120Sjulian 1036107120Sjulian /* XXX Close socket no matter what op->result says */ 1037107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 1038107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1039107120Sjulian"%s: Got L2CA_Disconnect response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1040107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d\n", 1041107120Sjulian __func__, msg->header.token, 1042107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1043107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1044107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1045107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1046107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state); 1047107120Sjulian 1048107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1049107120Sjulian 1050107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1051107120Sjulian soisdisconnected(pcb->so); 1052107120Sjulian } 1053107120Sjulian 1054107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1055114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1056107120Sjulian 1057107120Sjulian return (0); 1058107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_discon_rsp */ 1059107120Sjulian 1060107120Sjulian/* 1061107120Sjulian * Process L2CA_Disconnect indicator 1062107120Sjulian */ 1063107120Sjulian 1064107120Sjulianstatic int 1065107120Sjulianng_btsocket_l2cap_process_l2ca_discon_ind(struct ng_mesg *msg, 1066161623Semax ng_btsocket_l2cap_rtentry_p rt) 1067107120Sjulian{ 1068107120Sjulian ng_l2cap_l2ca_discon_ind_ip *ip = NULL; 1069107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1070107120Sjulian 1071107120Sjulian /* Check message */ 1072107120Sjulian if (msg->header.arglen != sizeof(*ip)) 1073107120Sjulian return (EMSGSIZE); 1074107120Sjulian 1075107120Sjulian ip = (ng_l2cap_l2ca_discon_ind_ip *)(msg->data); 1076107120Sjulian 1077114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1078114878Sjulian 1079107120Sjulian /* Look for the socket with given channel ID */ 1080281198Stakawata pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, ip->lcid, 1081281198Stakawata NG_L2CAP_L2CA_IDTYPE_BREDR); 1082114878Sjulian if (pcb == NULL) { 1083114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1084107120Sjulian return (0); 1085114878Sjulian } 1086107120Sjulian 1087107120Sjulian /* 1088107120Sjulian * Channel has already been destroyed, so disconnect the socket 1089107120Sjulian * and be done with it. If there was any pending request we can 1090107120Sjulian * not do anything here anyway. 1091107120Sjulian */ 1092107120Sjulian 1093107120Sjulian mtx_lock(&pcb->pcb_mtx); 1094107120Sjulian 1095107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1096107120Sjulian"%s: Got L2CA_Disconnect indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1097107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, state=%d\n", 1098107120Sjulian __func__, 1099107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1100107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1101107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1102107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1103107120Sjulian pcb->psm, pcb->cid, pcb->state); 1104107120Sjulian 1105107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 1106107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1107107120Sjulian 1108107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1109107120Sjulian soisdisconnected(pcb->so); 1110107120Sjulian 1111107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1112114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1113107120Sjulian 1114107120Sjulian return (0); 1115107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_discon_ind */ 1116107120Sjulian 1117107120Sjulian/* 1118107120Sjulian * Process L2CA_Write response 1119107120Sjulian */ 1120107120Sjulian 1121107120Sjulianstatic int 1122107120Sjulianng_btsocket_l2cap_process_l2ca_write_rsp(struct ng_mesg *msg, 1123161623Semax ng_btsocket_l2cap_rtentry_p rt) 1124107120Sjulian{ 1125107120Sjulian ng_l2cap_l2ca_write_op *op = NULL; 1126107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1127107120Sjulian 1128107120Sjulian /* Check message */ 1129107120Sjulian if (msg->header.arglen != sizeof(*op)) 1130107120Sjulian return (EMSGSIZE); 1131107120Sjulian 1132107120Sjulian op = (ng_l2cap_l2ca_write_op *)(msg->data); 1133107120Sjulian 1134114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1135114878Sjulian 1136107120Sjulian /* Look for the socket with given token */ 1137107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 1138114878Sjulian if (pcb == NULL) { 1139114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1140107120Sjulian return (ENOENT); 1141114878Sjulian } 1142107120Sjulian 1143107120Sjulian mtx_lock(&pcb->pcb_mtx); 1144107120Sjulian 1145107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1146107120Sjulian"%s: Got L2CA_Write response, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1147107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, length=%d, " \ 1148107120Sjulian"state=%d\n", __func__, 1149107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1150107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1151107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1152107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1153107120Sjulian pcb->psm, pcb->cid, op->result, op->length, 1154107120Sjulian pcb->state); 1155107120Sjulian 1156107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 1157107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1158114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1159114878Sjulian 1160107120Sjulian return (ENOENT); 1161107120Sjulian } 1162107120Sjulian 1163107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1164107120Sjulian 1165107120Sjulian /* 1166107120Sjulian * Check if we have more data to send 1167107120Sjulian */ 1168107120Sjulian sbdroprecord(&pcb->so->so_snd); 1169274421Sglebius if (sbavail(&pcb->so->so_snd) > 0) { 1170107120Sjulian if (ng_btsocket_l2cap_send2(pcb) == 0) 1171107120Sjulian ng_btsocket_l2cap_timeout(pcb); 1172107120Sjulian else 1173107120Sjulian sbdroprecord(&pcb->so->so_snd); /* XXX */ 1174107120Sjulian } 1175107120Sjulian 1176107120Sjulian /* 1177107120Sjulian * Now set the result, drop packet from the socket send queue and 1178107120Sjulian * ask for more (wakeup sender) 1179107120Sjulian */ 1180107120Sjulian 1181107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 1182107120Sjulian sowwakeup(pcb->so); 1183107120Sjulian 1184107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1185114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1186107120Sjulian 1187107120Sjulian return (0); 1188107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_write_rsp */ 1189107120Sjulian 1190107120Sjulian/* 1191107120Sjulian * Send L2CA_Connect request 1192107120Sjulian */ 1193107120Sjulian 1194107120Sjulianstatic int 1195107120Sjulianng_btsocket_l2cap_send_l2ca_con_req(ng_btsocket_l2cap_pcb_p pcb) 1196107120Sjulian{ 1197107120Sjulian struct ng_mesg *msg = NULL; 1198107120Sjulian ng_l2cap_l2ca_con_ip *ip = NULL; 1199107120Sjulian int error = 0; 1200107120Sjulian 1201107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1202107120Sjulian 1203107120Sjulian if (pcb->rt == NULL || 1204107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1205107120Sjulian return (ENETDOWN); 1206107120Sjulian 1207107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CON, 1208107120Sjulian sizeof(*ip), M_NOWAIT); 1209107120Sjulian if (msg == NULL) 1210107120Sjulian return (ENOMEM); 1211107120Sjulian 1212107120Sjulian msg->header.token = pcb->token; 1213107120Sjulian 1214107120Sjulian ip = (ng_l2cap_l2ca_con_ip *)(msg->data); 1215107120Sjulian bcopy(&pcb->dst, &ip->bdaddr, sizeof(ip->bdaddr)); 1216107120Sjulian ip->psm = pcb->psm; 1217281198Stakawata ip->linktype = ng_btsock_l2cap_addrtype_to_linktype(pcb->dsttype); 1218281198Stakawata ip->idtype = ng_btsock_l2cap_pcb_to_idtype(pcb); 1219123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1220107120Sjulian 1221107120Sjulian return (error); 1222107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_con_req */ 1223107120Sjulian 1224107120Sjulian/* 1225107120Sjulian * Send L2CA_Connect response 1226107120Sjulian */ 1227107120Sjulian 1228107120Sjulianstatic int 1229107120Sjulianng_btsocket_l2cap_send_l2ca_con_rsp_req(u_int32_t token, 1230107120Sjulian ng_btsocket_l2cap_rtentry_p rt, bdaddr_p dst, int ident, 1231281198Stakawata int lcid, int result, int linktype) 1232107120Sjulian{ 1233107120Sjulian struct ng_mesg *msg = NULL; 1234107120Sjulian ng_l2cap_l2ca_con_rsp_ip *ip = NULL; 1235107120Sjulian int error = 0; 1236107120Sjulian 1237107120Sjulian if (rt == NULL || rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 1238107120Sjulian return (ENETDOWN); 1239107120Sjulian 1240107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CON_RSP, 1241107120Sjulian sizeof(*ip), M_NOWAIT); 1242107120Sjulian if (msg == NULL) 1243107120Sjulian return (ENOMEM); 1244107120Sjulian 1245107120Sjulian msg->header.token = token; 1246107120Sjulian 1247107120Sjulian ip = (ng_l2cap_l2ca_con_rsp_ip *)(msg->data); 1248107120Sjulian bcopy(dst, &ip->bdaddr, sizeof(ip->bdaddr)); 1249107120Sjulian ip->ident = ident; 1250107120Sjulian ip->lcid = lcid; 1251281198Stakawata ip->linktype = linktype; 1252107120Sjulian ip->result = result; 1253107120Sjulian ip->status = 0; 1254107120Sjulian 1255123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg, rt->hook, 0); 1256107120Sjulian 1257107120Sjulian return (error); 1258107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_con_rsp_req */ 1259107120Sjulian 1260107120Sjulian/* 1261107120Sjulian * Send L2CA_Config request 1262107120Sjulian */ 1263107120Sjulian 1264107120Sjulianstatic int 1265107120Sjulianng_btsocket_l2cap_send_l2ca_cfg_req(ng_btsocket_l2cap_pcb_p pcb) 1266107120Sjulian{ 1267107120Sjulian struct ng_mesg *msg = NULL; 1268107120Sjulian ng_l2cap_l2ca_cfg_ip *ip = NULL; 1269107120Sjulian int error = 0; 1270107120Sjulian 1271107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1272107120Sjulian 1273107120Sjulian if (pcb->rt == NULL || 1274107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1275107120Sjulian return (ENETDOWN); 1276107120Sjulian 1277107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CFG, 1278107120Sjulian sizeof(*ip), M_NOWAIT); 1279107120Sjulian if (msg == NULL) 1280107120Sjulian return (ENOMEM); 1281107120Sjulian 1282107120Sjulian msg->header.token = pcb->token; 1283107120Sjulian 1284107120Sjulian ip = (ng_l2cap_l2ca_cfg_ip *)(msg->data); 1285107120Sjulian ip->lcid = pcb->cid; 1286107120Sjulian ip->imtu = pcb->imtu; 1287107120Sjulian bcopy(&pcb->oflow, &ip->oflow, sizeof(ip->oflow)); 1288107120Sjulian ip->flush_timo = pcb->flush_timo; 1289107120Sjulian ip->link_timo = pcb->link_timo; 1290107120Sjulian 1291123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1292107120Sjulian 1293107120Sjulian return (error); 1294107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_cfg_req */ 1295107120Sjulian 1296107120Sjulian/* 1297107120Sjulian * Send L2CA_Config response 1298107120Sjulian */ 1299107120Sjulian 1300107120Sjulianstatic int 1301107120Sjulianng_btsocket_l2cap_send_l2ca_cfg_rsp(ng_btsocket_l2cap_pcb_p pcb) 1302107120Sjulian{ 1303107120Sjulian struct ng_mesg *msg = NULL; 1304107120Sjulian ng_l2cap_l2ca_cfg_rsp_ip *ip = NULL; 1305107120Sjulian int error = 0; 1306107120Sjulian 1307107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1308107120Sjulian 1309107120Sjulian if (pcb->rt == NULL || 1310107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1311107120Sjulian return (ENETDOWN); 1312107120Sjulian 1313107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CFG_RSP, 1314107120Sjulian sizeof(*ip), M_NOWAIT); 1315107120Sjulian if (msg == NULL) 1316107120Sjulian return (ENOMEM); 1317107120Sjulian 1318107120Sjulian msg->header.token = pcb->token; 1319107120Sjulian 1320107120Sjulian ip = (ng_l2cap_l2ca_cfg_rsp_ip *)(msg->data); 1321107120Sjulian ip->lcid = pcb->cid; 1322107120Sjulian ip->omtu = pcb->omtu; 1323107120Sjulian bcopy(&pcb->iflow, &ip->iflow, sizeof(ip->iflow)); 1324107120Sjulian 1325123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg, pcb->rt->hook, 0); 1326107120Sjulian 1327107120Sjulian return (error); 1328107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_cfg_rsp */ 1329107120Sjulian 1330107120Sjulian/* 1331107120Sjulian * Send L2CA_Disconnect request 1332107120Sjulian */ 1333107120Sjulian 1334107120Sjulianstatic int 1335107120Sjulianng_btsocket_l2cap_send_l2ca_discon_req(u_int32_t token, 1336107120Sjulian ng_btsocket_l2cap_pcb_p pcb) 1337107120Sjulian{ 1338107120Sjulian struct ng_mesg *msg = NULL; 1339107120Sjulian ng_l2cap_l2ca_discon_ip *ip = NULL; 1340107120Sjulian int error = 0; 1341107120Sjulian 1342107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1343107120Sjulian 1344107120Sjulian if (pcb->rt == NULL || 1345107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1346107120Sjulian return (ENETDOWN); 1347107120Sjulian 1348107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_DISCON, 1349107120Sjulian sizeof(*ip), M_NOWAIT); 1350107120Sjulian if (msg == NULL) 1351107120Sjulian return (ENOMEM); 1352107120Sjulian 1353107120Sjulian msg->header.token = token; 1354107120Sjulian 1355107120Sjulian ip = (ng_l2cap_l2ca_discon_ip *)(msg->data); 1356107120Sjulian ip->lcid = pcb->cid; 1357281198Stakawata ip->idtype = ng_btsock_l2cap_pcb_to_idtype(pcb); 1358107120Sjulian 1359123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1360107120Sjulian 1361107120Sjulian return (error); 1362107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_discon_req */ 1363107120Sjulian 1364107120Sjulian/***************************************************************************** 1365107120Sjulian ***************************************************************************** 1366107120Sjulian ** Socket interface 1367107120Sjulian ***************************************************************************** 1368107120Sjulian *****************************************************************************/ 1369107120Sjulian 1370107120Sjulian/* 1371107120Sjulian * L2CAP sockets data input routine 1372107120Sjulian */ 1373107120Sjulian 1374107120Sjulianstatic void 1375107120Sjulianng_btsocket_l2cap_data_input(struct mbuf *m, hook_p hook) 1376107120Sjulian{ 1377107120Sjulian ng_l2cap_hdr_t *hdr = NULL; 1378107120Sjulian ng_l2cap_clt_hdr_t *clt_hdr = NULL; 1379107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1380107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 1381281198Stakawata uint16_t idtype; 1382107120Sjulian 1383107120Sjulian if (hook == NULL) { 1384107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1385107120Sjulian"%s: Invalid source hook for L2CAP data packet\n", __func__); 1386107120Sjulian goto drop; 1387107120Sjulian } 1388107120Sjulian 1389107120Sjulian rt = (ng_btsocket_l2cap_rtentry_t *) NG_HOOK_PRIVATE(hook); 1390107120Sjulian if (rt == NULL) { 1391107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1392107120Sjulian"%s: Could not find out source bdaddr for L2CAP data packet\n", __func__); 1393107120Sjulian goto drop; 1394107120Sjulian } 1395107120Sjulian 1396281198Stakawata m = m_pullup(m, sizeof(uint16_t)); 1397281198Stakawata idtype = *mtod(m, uint16_t *); 1398281198Stakawata m_adj(m, sizeof(uint16_t)); 1399281198Stakawata 1400107120Sjulian /* Make sure we can access header */ 1401107120Sjulian if (m->m_pkthdr.len < sizeof(*hdr)) { 1402107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1403107120Sjulian"%s: L2CAP data packet too small, len=%d\n", __func__, m->m_pkthdr.len); 1404107120Sjulian goto drop; 1405107120Sjulian } 1406107120Sjulian 1407107120Sjulian if (m->m_len < sizeof(*hdr)) { 1408107120Sjulian m = m_pullup(m, sizeof(*hdr)); 1409107120Sjulian if (m == NULL) 1410107120Sjulian goto drop; 1411107120Sjulian } 1412107120Sjulian 1413107120Sjulian /* Strip L2CAP packet header and verify packet length */ 1414107120Sjulian hdr = mtod(m, ng_l2cap_hdr_t *); 1415107120Sjulian m_adj(m, sizeof(*hdr)); 1416107120Sjulian 1417107120Sjulian if (hdr->length != m->m_pkthdr.len) { 1418107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1419107120Sjulian"%s: Bad L2CAP data packet length, len=%d, length=%d\n", 1420107120Sjulian __func__, m->m_pkthdr.len, hdr->length); 1421107120Sjulian goto drop; 1422107120Sjulian } 1423107120Sjulian 1424107120Sjulian /* 1425107120Sjulian * Now process packet. Two cases: 1426107120Sjulian * 1427107120Sjulian * 1) Normal packet (cid != 2) then find connected socket and append 1428107120Sjulian * mbuf to the socket queue. Wakeup socket. 1429107120Sjulian * 1430107120Sjulian * 2) Broadcast packet (cid == 2) then find all sockets that connected 1431107120Sjulian * to the given PSM and have SO_BROADCAST bit set and append mbuf 1432107120Sjulian * to the socket queue. Wakeup socket. 1433107120Sjulian */ 1434107120Sjulian 1435107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1436114878Sjulian"%s: Received L2CAP data packet: src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1437107120Sjulian"dcid=%d, length=%d\n", 1438107120Sjulian __func__, 1439107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1440107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1441107120Sjulian hdr->dcid, hdr->length); 1442107120Sjulian 1443281198Stakawata if ((hdr->dcid >= NG_L2CAP_FIRST_CID) || 1444281198Stakawata (idtype == NG_L2CAP_L2CA_IDTYPE_ATT)){ 1445114878Sjulian 1446114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1447114878Sjulian 1448107120Sjulian /* Normal packet: find connected socket */ 1449281198Stakawata pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, hdr->dcid,idtype); 1450114878Sjulian if (pcb == NULL) { 1451114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1452107120Sjulian goto drop; 1453114878Sjulian } 1454107120Sjulian 1455107120Sjulian mtx_lock(&pcb->pcb_mtx); 1456107120Sjulian 1457107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 1458107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1459107120Sjulian"%s: No connected socket found, src bdaddr=%x:%x:%x:%x:%x:%x, dcid=%d, " \ 1460107120Sjulian"state=%d\n", __func__, 1461107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1462107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1463107120Sjulian hdr->dcid, pcb->state); 1464107120Sjulian 1465107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1466114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1467107120Sjulian goto drop; 1468107120Sjulian } 1469107120Sjulian 1470107120Sjulian /* Check packet size against socket's incoming MTU */ 1471107120Sjulian if (hdr->length > pcb->imtu) { 1472107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1473107120Sjulian"%s: L2CAP data packet too big, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1474107120Sjulian"dcid=%d, length=%d, imtu=%d\n", 1475107120Sjulian __func__, 1476107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1477107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1478107120Sjulian hdr->dcid, hdr->length, pcb->imtu); 1479107120Sjulian 1480107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1481114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1482107120Sjulian goto drop; 1483107120Sjulian } 1484107120Sjulian 1485107120Sjulian /* Check if we have enough space in socket receive queue */ 1486107120Sjulian if (m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) { 1487107120Sjulian 1488107120Sjulian /* 1489107120Sjulian * This is really bad. Receive queue on socket does 1490107120Sjulian * not have enough space for the packet. We do not 1491107120Sjulian * have any other choice but drop the packet. L2CAP 1492107120Sjulian * does not provide any flow control. 1493107120Sjulian */ 1494107120Sjulian 1495107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1496107120Sjulian"%s: Not enough space in socket receive queue. Dropping L2CAP data packet, " \ 1497107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, dcid=%d, len=%d, space=%ld\n", 1498107120Sjulian __func__, 1499107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1500107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1501107120Sjulian hdr->dcid, m->m_pkthdr.len, 1502107120Sjulian sbspace(&pcb->so->so_rcv)); 1503107120Sjulian 1504107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1505114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1506107120Sjulian goto drop; 1507107120Sjulian } 1508107120Sjulian 1509107120Sjulian /* Append packet to the socket receive queue and wakeup */ 1510107120Sjulian sbappendrecord(&pcb->so->so_rcv, m); 1511107120Sjulian m = NULL; 1512107120Sjulian 1513107120Sjulian sorwakeup(pcb->so); 1514114878Sjulian 1515107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1516114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1517114878Sjulian } else if (hdr->dcid == NG_L2CAP_CLT_CID) { 1518107120Sjulian /* Broadcast packet: give packet to all sockets */ 1519107120Sjulian 1520107120Sjulian /* Check packet size against connectionless MTU */ 1521107120Sjulian if (hdr->length > NG_L2CAP_MTU_DEFAULT) { 1522107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1523107120Sjulian"%s: Connectionless L2CAP data packet too big, " \ 1524107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, length=%d\n", 1525107120Sjulian __func__, 1526107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1527107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1528107120Sjulian hdr->length); 1529107120Sjulian goto drop; 1530107120Sjulian } 1531107120Sjulian 1532107120Sjulian /* Make sure we can access connectionless header */ 1533107120Sjulian if (m->m_pkthdr.len < sizeof(*clt_hdr)) { 1534107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1535107120Sjulian"%s: Can not get L2CAP connectionless packet header, " \ 1536107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, length=%d\n", 1537107120Sjulian __func__, 1538107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1539107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1540107120Sjulian hdr->length); 1541107120Sjulian goto drop; 1542107120Sjulian } 1543107120Sjulian 1544107120Sjulian if (m->m_len < sizeof(*clt_hdr)) { 1545107120Sjulian m = m_pullup(m, sizeof(*clt_hdr)); 1546107120Sjulian if (m == NULL) 1547107120Sjulian goto drop; 1548107120Sjulian } 1549107120Sjulian 1550107120Sjulian /* Strip connectionless header and deliver packet */ 1551107120Sjulian clt_hdr = mtod(m, ng_l2cap_clt_hdr_t *); 1552107120Sjulian m_adj(m, sizeof(*clt_hdr)); 1553107120Sjulian 1554107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1555107120Sjulian"%s: Got L2CAP connectionless data packet, " \ 1556107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, length=%d\n", 1557107120Sjulian __func__, 1558107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1559107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1560107120Sjulian clt_hdr->psm, hdr->length); 1561107120Sjulian 1562107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1563107120Sjulian 1564107120Sjulian LIST_FOREACH(pcb, &ng_btsocket_l2cap_sockets, next) { 1565107120Sjulian struct mbuf *copy = NULL; 1566107120Sjulian 1567107120Sjulian mtx_lock(&pcb->pcb_mtx); 1568107120Sjulian 1569107120Sjulian if (bcmp(&rt->src, &pcb->src, sizeof(pcb->src)) != 0 || 1570107120Sjulian pcb->psm != clt_hdr->psm || 1571107120Sjulian pcb->state != NG_BTSOCKET_L2CAP_OPEN || 1572107120Sjulian (pcb->so->so_options & SO_BROADCAST) == 0 || 1573107120Sjulian m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) 1574107120Sjulian goto next; 1575107120Sjulian 1576107120Sjulian /* 1577107120Sjulian * Create a copy of the packet and append it to the 1578107120Sjulian * socket's queue. If m_dup() failed - no big deal 1579107120Sjulian * it is a broadcast traffic after all 1580107120Sjulian */ 1581107120Sjulian 1582243882Sglebius copy = m_dup(m, M_NOWAIT); 1583107120Sjulian if (copy != NULL) { 1584107120Sjulian sbappendrecord(&pcb->so->so_rcv, copy); 1585107120Sjulian sorwakeup(pcb->so); 1586107120Sjulian } 1587107120Sjuliannext: 1588107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1589107120Sjulian } 1590114878Sjulian 1591107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1592107120Sjulian } 1593107120Sjuliandrop: 1594107120Sjulian NG_FREE_M(m); /* checks for m != NULL */ 1595107120Sjulian} /* ng_btsocket_l2cap_data_input */ 1596107120Sjulian 1597107120Sjulian/* 1598107120Sjulian * L2CAP sockets default message input routine 1599107120Sjulian */ 1600107120Sjulian 1601107120Sjulianstatic void 1602107120Sjulianng_btsocket_l2cap_default_msg_input(struct ng_mesg *msg, hook_p hook) 1603107120Sjulian{ 1604107120Sjulian switch (msg->header.cmd) { 1605107120Sjulian case NGM_L2CAP_NODE_HOOK_INFO: { 1606107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 1607281198Stakawata ng_l2cap_node_hook_info_ep *ep = 1608281198Stakawata (ng_l2cap_node_hook_info_ep *)msg->data; 1609281198Stakawata if (hook == NULL || msg->header.arglen != sizeof(*ep)) 1610107120Sjulian break; 1611107120Sjulian 1612281198Stakawata if (bcmp(&ep->addr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 1613107120Sjulian break; 1614107120Sjulian 1615114878Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 1616114878Sjulian 1617107120Sjulian rt = (ng_btsocket_l2cap_rtentry_t *) NG_HOOK_PRIVATE(hook); 1618107120Sjulian if (rt == NULL) { 1619184205Sdes rt = malloc(sizeof(*rt), 1620107120Sjulian M_NETGRAPH_BTSOCKET_L2CAP, M_NOWAIT|M_ZERO); 1621114878Sjulian if (rt == NULL) { 1622114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1623107120Sjulian break; 1624114878Sjulian } 1625107120Sjulian 1626107120Sjulian LIST_INSERT_HEAD(&ng_btsocket_l2cap_rt, rt, next); 1627107120Sjulian 1628107120Sjulian NG_HOOK_SET_PRIVATE(hook, rt); 1629107120Sjulian } 1630114878Sjulian 1631281198Stakawata bcopy(&ep->addr, &rt->src, sizeof(rt->src)); 1632107120Sjulian rt->hook = hook; 1633107120Sjulian 1634114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1635114878Sjulian 1636107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1637107120Sjulian"%s: Updating hook \"%s\", src bdaddr=%x:%x:%x:%x:%x:%x\n", 1638107120Sjulian __func__, NG_HOOK_NAME(hook), 1639107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1640107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0]); 1641107120Sjulian } break; 1642107120Sjulian 1643107120Sjulian default: 1644107120Sjulian NG_BTSOCKET_L2CAP_WARN( 1645107120Sjulian"%s: Unknown message, cmd=%d\n", __func__, msg->header.cmd); 1646107120Sjulian break; 1647107120Sjulian } 1648107120Sjulian 1649107120Sjulian NG_FREE_MSG(msg); /* Checks for msg != NULL */ 1650107120Sjulian} /* ng_btsocket_l2cap_default_msg_input */ 1651107120Sjulian 1652107120Sjulian/* 1653107120Sjulian * L2CAP sockets L2CA message input routine 1654107120Sjulian */ 1655107120Sjulian 1656107120Sjulianstatic void 1657107120Sjulianng_btsocket_l2cap_l2ca_msg_input(struct ng_mesg *msg, hook_p hook) 1658107120Sjulian{ 1659161623Semax ng_btsocket_l2cap_rtentry_p rt = NULL; 1660107120Sjulian 1661107120Sjulian if (hook == NULL) { 1662107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1663107120Sjulian"%s: Invalid source hook for L2CA message\n", __func__); 1664107120Sjulian goto drop; 1665107120Sjulian } 1666107120Sjulian 1667107120Sjulian rt = (ng_btsocket_l2cap_rtentry_p) NG_HOOK_PRIVATE(hook); 1668107120Sjulian if (rt == NULL) { 1669107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1670107120Sjulian"%s: Could not find out source bdaddr for L2CA message\n", __func__); 1671107120Sjulian goto drop; 1672107120Sjulian } 1673107120Sjulian 1674107120Sjulian switch (msg->header.cmd) { 1675107120Sjulian case NGM_L2CAP_L2CA_CON: /* L2CA_Connect response */ 1676161623Semax ng_btsocket_l2cap_process_l2ca_con_req_rsp(msg, rt); 1677107120Sjulian break; 1678107120Sjulian 1679107120Sjulian case NGM_L2CAP_L2CA_CON_RSP: /* L2CA_ConnectRsp response */ 1680161623Semax ng_btsocket_l2cap_process_l2ca_con_rsp_rsp(msg, rt); 1681107120Sjulian break; 1682107120Sjulian 1683107120Sjulian case NGM_L2CAP_L2CA_CON_IND: /* L2CA_Connect indicator */ 1684161623Semax ng_btsocket_l2cap_process_l2ca_con_ind(msg, rt); 1685107120Sjulian break; 1686107120Sjulian 1687107120Sjulian case NGM_L2CAP_L2CA_CFG: /* L2CA_Config response */ 1688161623Semax ng_btsocket_l2cap_process_l2ca_cfg_req_rsp(msg, rt); 1689107120Sjulian break; 1690107120Sjulian 1691107120Sjulian case NGM_L2CAP_L2CA_CFG_RSP: /* L2CA_ConfigRsp response */ 1692161623Semax ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp(msg, rt); 1693107120Sjulian break; 1694107120Sjulian 1695107120Sjulian case NGM_L2CAP_L2CA_CFG_IND: /* L2CA_Config indicator */ 1696161623Semax ng_btsocket_l2cap_process_l2ca_cfg_ind(msg, rt); 1697107120Sjulian break; 1698107120Sjulian 1699107120Sjulian case NGM_L2CAP_L2CA_DISCON: /* L2CA_Disconnect response */ 1700161623Semax ng_btsocket_l2cap_process_l2ca_discon_rsp(msg, rt); 1701107120Sjulian break; 1702107120Sjulian 1703107120Sjulian case NGM_L2CAP_L2CA_DISCON_IND: /* L2CA_Disconnect indicator */ 1704161623Semax ng_btsocket_l2cap_process_l2ca_discon_ind(msg, rt); 1705107120Sjulian break; 1706107120Sjulian 1707107120Sjulian case NGM_L2CAP_L2CA_WRITE: /* L2CA_Write response */ 1708161623Semax ng_btsocket_l2cap_process_l2ca_write_rsp(msg, rt); 1709107120Sjulian break; 1710107120Sjulian 1711107120Sjulian /* XXX FIXME add other L2CA messages */ 1712107120Sjulian 1713107120Sjulian default: 1714107120Sjulian NG_BTSOCKET_L2CAP_WARN( 1715107120Sjulian"%s: Unknown L2CA message, cmd=%d\n", __func__, msg->header.cmd); 1716107120Sjulian break; 1717107120Sjulian } 1718107120Sjuliandrop: 1719107120Sjulian NG_FREE_MSG(msg); 1720107120Sjulian} /* ng_btsocket_l2cap_l2ca_msg_input */ 1721107120Sjulian 1722107120Sjulian/* 1723107120Sjulian * L2CAP sockets input routine 1724107120Sjulian */ 1725107120Sjulian 1726107120Sjulianstatic void 1727107120Sjulianng_btsocket_l2cap_input(void *context, int pending) 1728107120Sjulian{ 1729107120Sjulian item_p item = NULL; 1730107120Sjulian hook_p hook = NULL; 1731107120Sjulian 1732107120Sjulian for (;;) { 1733107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 1734107120Sjulian NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_l2cap_queue, item); 1735107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 1736107120Sjulian 1737107120Sjulian if (item == NULL) 1738107120Sjulian break; 1739107120Sjulian 1740107120Sjulian NGI_GET_HOOK(item, hook); 1741107120Sjulian if (hook != NULL && NG_HOOK_NOT_VALID(hook)) 1742107120Sjulian goto drop; 1743107120Sjulian 1744107120Sjulian switch(item->el_flags & NGQF_TYPE) { 1745107120Sjulian case NGQF_DATA: { 1746107120Sjulian struct mbuf *m = NULL; 1747107120Sjulian 1748107120Sjulian NGI_GET_M(item, m); 1749107120Sjulian ng_btsocket_l2cap_data_input(m, hook); 1750107120Sjulian } break; 1751107120Sjulian 1752107120Sjulian case NGQF_MESG: { 1753107120Sjulian struct ng_mesg *msg = NULL; 1754107120Sjulian 1755107120Sjulian NGI_GET_MSG(item, msg); 1756107120Sjulian 1757107120Sjulian switch (msg->header.cmd) { 1758107120Sjulian case NGM_L2CAP_L2CA_CON: 1759107120Sjulian case NGM_L2CAP_L2CA_CON_RSP: 1760107120Sjulian case NGM_L2CAP_L2CA_CON_IND: 1761107120Sjulian case NGM_L2CAP_L2CA_CFG: 1762107120Sjulian case NGM_L2CAP_L2CA_CFG_RSP: 1763107120Sjulian case NGM_L2CAP_L2CA_CFG_IND: 1764107120Sjulian case NGM_L2CAP_L2CA_DISCON: 1765107120Sjulian case NGM_L2CAP_L2CA_DISCON_IND: 1766107120Sjulian case NGM_L2CAP_L2CA_WRITE: 1767107120Sjulian /* XXX FIXME add other L2CA messages */ 1768107120Sjulian ng_btsocket_l2cap_l2ca_msg_input(msg, hook); 1769107120Sjulian break; 1770107120Sjulian 1771107120Sjulian default: 1772107120Sjulian ng_btsocket_l2cap_default_msg_input(msg, hook); 1773107120Sjulian break; 1774107120Sjulian } 1775107120Sjulian } break; 1776107120Sjulian 1777107120Sjulian default: 1778107120Sjulian KASSERT(0, 1779107120Sjulian("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 1780107120Sjulian break; 1781107120Sjulian } 1782107120Sjuliandrop: 1783107120Sjulian if (hook != NULL) 1784107120Sjulian NG_HOOK_UNREF(hook); 1785107120Sjulian 1786107120Sjulian NG_FREE_ITEM(item); 1787107120Sjulian } 1788107120Sjulian} /* ng_btsocket_l2cap_input */ 1789107120Sjulian 1790107120Sjulian/* 1791107120Sjulian * Route cleanup task. Gets scheduled when hook is disconnected. Here we 1792107120Sjulian * will find all sockets that use "invalid" hook and disconnect them. 1793107120Sjulian */ 1794107120Sjulian 1795107120Sjulianstatic void 1796107120Sjulianng_btsocket_l2cap_rtclean(void *context, int pending) 1797107120Sjulian{ 1798114878Sjulian ng_btsocket_l2cap_pcb_p pcb = NULL, pcb_next = NULL; 1799107120Sjulian ng_btsocket_l2cap_rtentry_p rt = NULL; 1800107120Sjulian 1801107120Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 1802107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1803107120Sjulian 1804107120Sjulian /* 1805107120Sjulian * First disconnect all sockets that use "invalid" hook 1806107120Sjulian */ 1807107120Sjulian 1808114878Sjulian for (pcb = LIST_FIRST(&ng_btsocket_l2cap_sockets); pcb != NULL; ) { 1809107120Sjulian mtx_lock(&pcb->pcb_mtx); 1810114878Sjulian pcb_next = LIST_NEXT(pcb, next); 1811107120Sjulian 1812107120Sjulian if (pcb->rt != NULL && 1813107120Sjulian pcb->rt->hook != NULL && NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1814107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 1815107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1816107120Sjulian 1817107120Sjulian pcb->so->so_error = ENETDOWN; 1818107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1819107120Sjulian soisdisconnected(pcb->so); 1820107120Sjulian 1821107120Sjulian pcb->token = 0; 1822114878Sjulian pcb->cid = 0; 1823107120Sjulian pcb->rt = NULL; 1824107120Sjulian } 1825107120Sjulian 1826107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1827114878Sjulian pcb = pcb_next; 1828107120Sjulian } 1829107120Sjulian 1830107120Sjulian /* 1831107120Sjulian * Now cleanup routing table 1832107120Sjulian */ 1833107120Sjulian 1834114878Sjulian for (rt = LIST_FIRST(&ng_btsocket_l2cap_rt); rt != NULL; ) { 1835107120Sjulian ng_btsocket_l2cap_rtentry_p rt_next = LIST_NEXT(rt, next); 1836107120Sjulian 1837107120Sjulian if (rt->hook != NULL && NG_HOOK_NOT_VALID(rt->hook)) { 1838107120Sjulian LIST_REMOVE(rt, next); 1839107120Sjulian 1840107120Sjulian NG_HOOK_SET_PRIVATE(rt->hook, NULL); 1841107120Sjulian NG_HOOK_UNREF(rt->hook); /* Remove extra reference */ 1842107120Sjulian 1843107120Sjulian bzero(rt, sizeof(*rt)); 1844184205Sdes free(rt, M_NETGRAPH_BTSOCKET_L2CAP); 1845107120Sjulian } 1846107120Sjulian 1847107120Sjulian rt = rt_next; 1848107120Sjulian } 1849107120Sjulian 1850107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1851107120Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1852107120Sjulian} /* ng_btsocket_l2cap_rtclean */ 1853107120Sjulian 1854107120Sjulian/* 1855107120Sjulian * Initialize everything 1856107120Sjulian */ 1857107120Sjulian 1858107120Sjulianvoid 1859107120Sjulianng_btsocket_l2cap_init(void) 1860107120Sjulian{ 1861107120Sjulian int error = 0; 1862107120Sjulian 1863267336Strociny /* Skip initialization of globals for non-default instances. */ 1864267336Strociny if (!IS_DEFAULT_VNET(curvnet)) 1865267336Strociny return; 1866267336Strociny 1867107120Sjulian ng_btsocket_l2cap_node = NULL; 1868107120Sjulian ng_btsocket_l2cap_debug_level = NG_BTSOCKET_WARN_LEVEL; 1869107120Sjulian 1870107120Sjulian /* Register Netgraph node type */ 1871107120Sjulian error = ng_newtype(&typestruct); 1872107120Sjulian if (error != 0) { 1873107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1874107120Sjulian"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 1875107120Sjulian 1876107120Sjulian return; 1877107120Sjulian } 1878107120Sjulian 1879107120Sjulian /* Create Netgrapg node */ 1880107120Sjulian error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_node); 1881107120Sjulian if (error != 0) { 1882107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1883107120Sjulian"%s: Could not create Netgraph node, error=%d\n", __func__, error); 1884107120Sjulian 1885107120Sjulian ng_btsocket_l2cap_node = NULL; 1886107120Sjulian 1887107120Sjulian return; 1888107120Sjulian } 1889107120Sjulian 1890107120Sjulian error = ng_name_node(ng_btsocket_l2cap_node, 1891107120Sjulian NG_BTSOCKET_L2CAP_NODE_TYPE); 1892107120Sjulian if (error != 0) { 1893107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1894107120Sjulian"%s: Could not name Netgraph node, error=%d\n", __func__, error); 1895107120Sjulian 1896107120Sjulian NG_NODE_UNREF(ng_btsocket_l2cap_node); 1897107120Sjulian ng_btsocket_l2cap_node = NULL; 1898107120Sjulian 1899107120Sjulian return; 1900107120Sjulian } 1901107120Sjulian 1902107120Sjulian /* Create input queue */ 1903107120Sjulian NG_BT_ITEMQ_INIT(&ng_btsocket_l2cap_queue, ifqmaxlen); 1904107120Sjulian mtx_init(&ng_btsocket_l2cap_queue_mtx, 1905107120Sjulian "btsocks_l2cap_queue_mtx", NULL, MTX_DEF); 1906107120Sjulian TASK_INIT(&ng_btsocket_l2cap_queue_task, 0, 1907107120Sjulian ng_btsocket_l2cap_input, NULL); 1908107120Sjulian 1909107120Sjulian /* Create list of sockets */ 1910107120Sjulian LIST_INIT(&ng_btsocket_l2cap_sockets); 1911107120Sjulian mtx_init(&ng_btsocket_l2cap_sockets_mtx, 1912107120Sjulian "btsocks_l2cap_sockets_mtx", NULL, MTX_DEF); 1913107120Sjulian 1914107120Sjulian /* Routing table */ 1915107120Sjulian LIST_INIT(&ng_btsocket_l2cap_rt); 1916107120Sjulian mtx_init(&ng_btsocket_l2cap_rt_mtx, 1917107120Sjulian "btsocks_l2cap_rt_mtx", NULL, MTX_DEF); 1918107120Sjulian TASK_INIT(&ng_btsocket_l2cap_rt_task, 0, 1919107120Sjulian ng_btsocket_l2cap_rtclean, NULL); 1920107120Sjulian} /* ng_btsocket_l2cap_init */ 1921107120Sjulian 1922107120Sjulian/* 1923107120Sjulian * Abort connection on socket 1924107120Sjulian */ 1925107120Sjulian 1926157366Srwatsonvoid 1927107120Sjulianng_btsocket_l2cap_abort(struct socket *so) 1928107120Sjulian{ 1929107120Sjulian so->so_error = ECONNABORTED; 1930107120Sjulian 1931160549Srwatson (void)ng_btsocket_l2cap_disconnect(so); 1932107120Sjulian} /* ng_btsocket_l2cap_abort */ 1933107120Sjulian 1934160549Srwatsonvoid 1935160549Srwatsonng_btsocket_l2cap_close(struct socket *so) 1936160549Srwatson{ 1937160549Srwatson 1938160549Srwatson (void)ng_btsocket_l2cap_disconnect(so); 1939160549Srwatson} /* ng_btsocket_l2cap_close */ 1940160549Srwatson 1941107120Sjulian/* 1942107120Sjulian * Accept connection on socket. Nothing to do here, socket must be connected 1943107120Sjulian * and ready, so just return peer address and be done with it. 1944107120Sjulian */ 1945107120Sjulian 1946107120Sjulianint 1947107120Sjulianng_btsocket_l2cap_accept(struct socket *so, struct sockaddr **nam) 1948107120Sjulian{ 1949107120Sjulian if (ng_btsocket_l2cap_node == NULL) 1950107120Sjulian return (EINVAL); 1951107120Sjulian 1952107120Sjulian return (ng_btsocket_l2cap_peeraddr(so, nam)); 1953107120Sjulian} /* ng_btsocket_l2cap_accept */ 1954107120Sjulian 1955107120Sjulian/* 1956107120Sjulian * Create and attach new socket 1957107120Sjulian */ 1958107120Sjulian 1959107120Sjulianint 1960107120Sjulianng_btsocket_l2cap_attach(struct socket *so, int proto, struct thread *td) 1961107120Sjulian{ 1962114878Sjulian static u_int32_t token = 0; 1963107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 1964107120Sjulian int error; 1965107120Sjulian 1966107120Sjulian /* Check socket and protocol */ 1967107120Sjulian if (ng_btsocket_l2cap_node == NULL) 1968107120Sjulian return (EPROTONOSUPPORT); 1969107120Sjulian if (so->so_type != SOCK_SEQPACKET) 1970107120Sjulian return (ESOCKTNOSUPPORT); 1971107120Sjulian 1972107120Sjulian#if 0 /* XXX sonewconn() calls "pru_attach" with proto == 0 */ 1973107120Sjulian if (proto != 0) 1974107120Sjulian if (proto != BLUETOOTH_PROTO_L2CAP) 1975107120Sjulian return (EPROTONOSUPPORT); 1976107120Sjulian#endif /* XXX */ 1977107120Sjulian 1978107120Sjulian if (pcb != NULL) 1979107120Sjulian return (EISCONN); 1980107120Sjulian 1981107120Sjulian /* Reserve send and receive space if it is not reserved yet */ 1982107120Sjulian if ((so->so_snd.sb_hiwat == 0) || (so->so_rcv.sb_hiwat == 0)) { 1983107120Sjulian error = soreserve(so, NG_BTSOCKET_L2CAP_SENDSPACE, 1984107120Sjulian NG_BTSOCKET_L2CAP_RECVSPACE); 1985107120Sjulian if (error != 0) 1986107120Sjulian return (error); 1987107120Sjulian } 1988107120Sjulian 1989107120Sjulian /* Allocate the PCB */ 1990184205Sdes pcb = malloc(sizeof(*pcb), 1991107120Sjulian M_NETGRAPH_BTSOCKET_L2CAP, M_NOWAIT | M_ZERO); 1992107120Sjulian if (pcb == NULL) 1993107120Sjulian return (ENOMEM); 1994107120Sjulian 1995107120Sjulian /* Link the PCB and the socket */ 1996107120Sjulian so->so_pcb = (caddr_t) pcb; 1997107120Sjulian pcb->so = so; 1998107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1999107120Sjulian 2000107120Sjulian /* Initialize PCB */ 2001107120Sjulian pcb->imtu = pcb->omtu = NG_L2CAP_MTU_DEFAULT; 2002107120Sjulian 2003107120Sjulian /* Default flow */ 2004107120Sjulian pcb->iflow.flags = 0x0; 2005107120Sjulian pcb->iflow.service_type = NG_HCI_SERVICE_TYPE_BEST_EFFORT; 2006107120Sjulian pcb->iflow.token_rate = 0xffffffff; /* maximum */ 2007107120Sjulian pcb->iflow.token_bucket_size = 0xffffffff; /* maximum */ 2008107120Sjulian pcb->iflow.peak_bandwidth = 0x00000000; /* maximum */ 2009107120Sjulian pcb->iflow.latency = 0xffffffff; /* don't care */ 2010107120Sjulian pcb->iflow.delay_variation = 0xffffffff; /* don't care */ 2011107120Sjulian 2012107120Sjulian bcopy(&pcb->iflow, &pcb->oflow, sizeof(pcb->oflow)); 2013107120Sjulian 2014107120Sjulian pcb->flush_timo = NG_L2CAP_FLUSH_TIMO_DEFAULT; 2015107120Sjulian pcb->link_timo = NG_L2CAP_LINK_TIMO_DEFAULT; 2016107120Sjulian 2017114878Sjulian /* 2018114878Sjulian * XXX Mark PCB mutex as DUPOK to prevent "duplicated lock of 2019114878Sjulian * the same type" message. When accepting new L2CAP connection 2020114878Sjulian * ng_btsocket_l2cap_process_l2ca_con_ind() holds both PCB mutexes 2021114878Sjulian * for "old" (accepting) PCB and "new" (created) PCB. 2022114878Sjulian */ 2023114878Sjulian 2024114878Sjulian mtx_init(&pcb->pcb_mtx, "btsocks_l2cap_pcb_mtx", NULL, 2025114878Sjulian MTX_DEF|MTX_DUPOK); 2026271908Sjhb callout_init_mtx(&pcb->timo, &pcb->pcb_mtx, 0); 2027114878Sjulian 2028114878Sjulian /* 2029114878Sjulian * Add the PCB to the list 2030114878Sjulian * 2031114878Sjulian * XXX FIXME VERY IMPORTANT! 2032114878Sjulian * 2033114878Sjulian * This is totally FUBAR. We could get here in two cases: 2034114878Sjulian * 2035114878Sjulian * 1) When user calls socket() 2036114878Sjulian * 2) When we need to accept new incomming connection and call 2037114878Sjulian * sonewconn() 2038114878Sjulian * 2039170035Srwatson * In the first case we must acquire ng_btsocket_l2cap_sockets_mtx. 2040114878Sjulian * In the second case we hold ng_btsocket_l2cap_sockets_mtx already. 2041114878Sjulian * So we now need to distinguish between these cases. From reading 2042167907Smaxim * /sys/kern/uipc_socket.c we can find out that sonewconn() calls 2043114878Sjulian * pru_attach with proto == 0 and td == NULL. For now use this fact 2044114878Sjulian * to figure out if we were called from socket() or from sonewconn(). 2045114878Sjulian */ 2046114878Sjulian 2047114878Sjulian if (td != NULL) 2048114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2049114878Sjulian else 2050114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2051114878Sjulian 2052114878Sjulian /* Set PCB token. Use ng_btsocket_l2cap_sockets_mtx for protection */ 2053114878Sjulian if (++ token == 0) 2054114878Sjulian token ++; 2055114878Sjulian 2056114878Sjulian pcb->token = token; 2057114878Sjulian 2058107120Sjulian LIST_INSERT_HEAD(&ng_btsocket_l2cap_sockets, pcb, next); 2059107120Sjulian 2060114878Sjulian if (td != NULL) 2061114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2062114878Sjulian 2063107120Sjulian return (0); 2064107120Sjulian} /* ng_btsocket_l2cap_attach */ 2065107120Sjulian 2066107120Sjulian/* 2067107120Sjulian * Bind socket 2068107120Sjulian */ 2069107120Sjulian 2070107120Sjulianint 2071107120Sjulianng_btsocket_l2cap_bind(struct socket *so, struct sockaddr *nam, 2072107120Sjulian struct thread *td) 2073107120Sjulian{ 2074107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 2075107120Sjulian struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam; 2076107120Sjulian int psm, error = 0; 2077107120Sjulian 2078107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2079107120Sjulian return (EINVAL); 2080107120Sjulian 2081107120Sjulian /* Verify address */ 2082107120Sjulian if (sa == NULL) 2083107120Sjulian return (EINVAL); 2084107120Sjulian if (sa->l2cap_family != AF_BLUETOOTH) 2085107120Sjulian return (EAFNOSUPPORT); 2086281198Stakawata /*For the time being, Not support LE binding.*/ 2087281198Stakawata if ((sa->l2cap_len != sizeof(*sa))&& 2088281198Stakawata (sa->l2cap_len != sizeof(struct sockaddr_l2cap_compat))) 2089107120Sjulian return (EINVAL); 2090107120Sjulian 2091107120Sjulian psm = le16toh(sa->l2cap_psm); 2092107120Sjulian 2093107120Sjulian /* 2094107120Sjulian * Check if other socket has this address already (look for exact 2095107120Sjulian * match PSM and bdaddr) and assign socket address if it's available. 2096107120Sjulian * 2097107120Sjulian * Note: socket can be bound to ANY PSM (zero) thus allowing several 2098107120Sjulian * channels with the same PSM between the same pair of BD_ADDR'es. 2099107120Sjulian */ 2100107120Sjulian 2101107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2102107120Sjulian 2103107120Sjulian LIST_FOREACH(pcb, &ng_btsocket_l2cap_sockets, next) 2104107120Sjulian if (psm != 0 && psm == pcb->psm && 2105107120Sjulian bcmp(&pcb->src, &sa->l2cap_bdaddr, sizeof(bdaddr_t)) == 0) 2106107120Sjulian break; 2107107120Sjulian 2108107120Sjulian if (pcb == NULL) { 2109107120Sjulian /* Set socket address */ 2110107120Sjulian pcb = so2l2cap_pcb(so); 2111107120Sjulian if (pcb != NULL) { 2112107120Sjulian bcopy(&sa->l2cap_bdaddr, &pcb->src, sizeof(pcb->src)); 2113107120Sjulian pcb->psm = psm; 2114107120Sjulian } else 2115107120Sjulian error = EINVAL; 2116107120Sjulian } else 2117107120Sjulian error = EADDRINUSE; 2118107120Sjulian 2119107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2120107120Sjulian 2121107120Sjulian return (error); 2122107120Sjulian} /* ng_btsocket_l2cap_bind */ 2123107120Sjulian 2124107120Sjulian/* 2125107120Sjulian * Connect socket 2126107120Sjulian */ 2127107120Sjulian 2128107120Sjulianint 2129107120Sjulianng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam, 2130107120Sjulian struct thread *td) 2131107120Sjulian{ 2132107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = so2l2cap_pcb(so); 2133281198Stakawata struct sockaddr_l2cap_compat *sal = (struct sockaddr_l2cap_compat *) nam; 2134281198Stakawata struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *)nam; 2135281198Stakawata struct sockaddr_l2cap ba; 2136107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 2137107120Sjulian int have_src, error = 0; 2138107120Sjulian 2139107120Sjulian /* Check socket */ 2140107120Sjulian if (pcb == NULL) 2141107120Sjulian return (EINVAL); 2142107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2143107120Sjulian return (EINVAL); 2144107120Sjulian if (pcb->state == NG_BTSOCKET_L2CAP_CONNECTING) 2145107120Sjulian return (EINPROGRESS); 2146107120Sjulian 2147107120Sjulian /* Verify address */ 2148107120Sjulian if (sa == NULL) 2149107120Sjulian return (EINVAL); 2150107120Sjulian if (sa->l2cap_family != AF_BLUETOOTH) 2151107120Sjulian return (EAFNOSUPPORT); 2152281198Stakawata if (sa->l2cap_len == sizeof(*sal)){ 2153281198Stakawata bcopy(sal, &ba, sizeof(*sal)); 2154281198Stakawata sa = &ba; 2155281198Stakawata sa->l2cap_len = sizeof(*sa); 2156281198Stakawata sa->l2cap_bdaddr_type = BDADDR_BREDR; 2157281198Stakawata } 2158107120Sjulian if (sa->l2cap_len != sizeof(*sa)) 2159107120Sjulian return (EINVAL); 2160281198Stakawata if ((sa->l2cap_psm && sa->l2cap_cid)) 2161281198Stakawata return EINVAL; 2162281198Stakawata if (bcmp(&sa->l2cap_bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 2163107120Sjulian return (EDESTADDRREQ); 2164281198Stakawata if((sa->l2cap_bdaddr_type == BDADDR_BREDR)&& 2165281198Stakawata (sa->l2cap_psm == 0)) 2166281198Stakawata return EDESTADDRREQ; 2167281198Stakawata if((sa->l2cap_bdaddr_type != BDADDR_BREDR)&& 2168281198Stakawata (sa->l2cap_cid != NG_L2CAP_ATT_CID)){ 2169281198Stakawata return EINVAL; 2170281198Stakawata } 2171107120Sjulian if (pcb->psm != 0 && pcb->psm != le16toh(sa->l2cap_psm)) 2172107120Sjulian return (EINVAL); 2173107120Sjulian /* 2174107120Sjulian * Routing. Socket should be bound to some source address. The source 2175107120Sjulian * address can be ANY. Destination address must be set and it must not 2176107120Sjulian * be ANY. If source address is ANY then find first rtentry that has 2177107120Sjulian * src != dst. 2178107120Sjulian */ 2179107120Sjulian 2180114878Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 2181114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2182114878Sjulian mtx_lock(&pcb->pcb_mtx); 2183114878Sjulian 2184114878Sjulian /* Send destination address and PSM */ 2185114878Sjulian bcopy(&sa->l2cap_bdaddr, &pcb->dst, sizeof(pcb->dst)); 2186114878Sjulian pcb->psm = le16toh(sa->l2cap_psm); 2187281198Stakawata pcb->dsttype = sa->l2cap_bdaddr_type; 2188281198Stakawata pcb->cid = sa->l2cap_cid; 2189281198Stakawata 2190107120Sjulian pcb->rt = NULL; 2191107120Sjulian have_src = bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)); 2192107120Sjulian 2193107120Sjulian LIST_FOREACH(rt, &ng_btsocket_l2cap_rt, next) { 2194107120Sjulian if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 2195107120Sjulian continue; 2196107120Sjulian 2197107120Sjulian /* Match src and dst */ 2198107120Sjulian if (have_src) { 2199107120Sjulian if (bcmp(&pcb->src, &rt->src, sizeof(rt->src)) == 0) 2200107120Sjulian break; 2201107120Sjulian } else { 2202107120Sjulian if (bcmp(&pcb->dst, &rt->src, sizeof(rt->src)) != 0) 2203107120Sjulian break; 2204107120Sjulian } 2205107120Sjulian } 2206107120Sjulian 2207107120Sjulian if (rt != NULL) { 2208107120Sjulian pcb->rt = rt; 2209107120Sjulian 2210281198Stakawata if (!have_src){ 2211107120Sjulian bcopy(&rt->src, &pcb->src, sizeof(pcb->src)); 2212281198Stakawata pcb->srctype = 2213281198Stakawata (sa->l2cap_bdaddr_type == BDADDR_BREDR)? 2214281198Stakawata BDADDR_BREDR : BDADDR_LE_RANDOM; 2215281198Stakawata } 2216107120Sjulian } else 2217107120Sjulian error = EHOSTUNREACH; 2218107120Sjulian 2219107120Sjulian /* 2220107120Sjulian * Send L2CA_Connect request 2221107120Sjulian */ 2222107120Sjulian 2223107120Sjulian if (error == 0) { 2224107120Sjulian error = ng_btsocket_l2cap_send_l2ca_con_req(pcb); 2225107120Sjulian if (error == 0) { 2226107120Sjulian pcb->flags |= NG_BTSOCKET_L2CAP_CLIENT; 2227107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONNECTING; 2228107120Sjulian soisconnecting(pcb->so); 2229107120Sjulian 2230107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2231107120Sjulian } 2232107120Sjulian } 2233107120Sjulian 2234114878Sjulian mtx_unlock(&pcb->pcb_mtx); 2235114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2236114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 2237114878Sjulian 2238107120Sjulian return (error); 2239107120Sjulian} /* ng_btsocket_l2cap_connect */ 2240107120Sjulian 2241107120Sjulian/* 2242107120Sjulian * Process ioctl's calls on socket 2243107120Sjulian */ 2244107120Sjulian 2245107120Sjulianint 2246107120Sjulianng_btsocket_l2cap_control(struct socket *so, u_long cmd, caddr_t data, 2247107120Sjulian struct ifnet *ifp, struct thread *td) 2248107120Sjulian{ 2249107120Sjulian return (EINVAL); 2250107120Sjulian} /* ng_btsocket_l2cap_control */ 2251107120Sjulian 2252107120Sjulian/* 2253107120Sjulian * Process getsockopt/setsockopt system calls 2254107120Sjulian */ 2255107120Sjulian 2256107120Sjulianint 2257107120Sjulianng_btsocket_l2cap_ctloutput(struct socket *so, struct sockopt *sopt) 2258107120Sjulian{ 2259107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2260107120Sjulian int error = 0; 2261107120Sjulian ng_l2cap_cfg_opt_val_t v; 2262107120Sjulian 2263107120Sjulian if (pcb == NULL) 2264107120Sjulian return (EINVAL); 2265107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2266107120Sjulian return (EINVAL); 2267107120Sjulian 2268107120Sjulian if (sopt->sopt_level != SOL_L2CAP) 2269107120Sjulian return (0); 2270107120Sjulian 2271107120Sjulian mtx_lock(&pcb->pcb_mtx); 2272107120Sjulian 2273107120Sjulian switch (sopt->sopt_dir) { 2274107120Sjulian case SOPT_GET: 2275107120Sjulian switch (sopt->sopt_name) { 2276107120Sjulian case SO_L2CAP_IMTU: /* get incoming MTU */ 2277107120Sjulian error = sooptcopyout(sopt, &pcb->imtu, 2278107120Sjulian sizeof(pcb->imtu)); 2279107120Sjulian break; 2280107120Sjulian 2281107120Sjulian case SO_L2CAP_OMTU: /* get outgoing (peer incoming) MTU */ 2282107120Sjulian error = sooptcopyout(sopt, &pcb->omtu, 2283107120Sjulian sizeof(pcb->omtu)); 2284107120Sjulian break; 2285107120Sjulian 2286107120Sjulian case SO_L2CAP_IFLOW: /* get incoming flow spec. */ 2287107120Sjulian error = sooptcopyout(sopt, &pcb->iflow, 2288107120Sjulian sizeof(pcb->iflow)); 2289107120Sjulian break; 2290107120Sjulian 2291107120Sjulian case SO_L2CAP_OFLOW: /* get outgoing flow spec. */ 2292107120Sjulian error = sooptcopyout(sopt, &pcb->oflow, 2293107120Sjulian sizeof(pcb->oflow)); 2294107120Sjulian break; 2295107120Sjulian 2296107120Sjulian case SO_L2CAP_FLUSH: /* get flush timeout */ 2297107120Sjulian error = sooptcopyout(sopt, &pcb->flush_timo, 2298107120Sjulian sizeof(pcb->flush_timo)); 2299107120Sjulian break; 2300107120Sjulian 2301107120Sjulian default: 2302107120Sjulian error = ENOPROTOOPT; 2303107120Sjulian break; 2304107120Sjulian } 2305107120Sjulian break; 2306107120Sjulian 2307107120Sjulian case SOPT_SET: 2308107120Sjulian /* 2309114878Sjulian * XXX 2310114878Sjulian * We do not allow to change these parameters while socket is 2311114878Sjulian * connected or we are in the process of creating a connection. 2312114878Sjulian * May be this should indicate re-configuration of the open 2313114878Sjulian * channel? 2314107120Sjulian */ 2315107120Sjulian 2316173231Semax if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 2317173231Semax error = EACCES; 2318173231Semax break; 2319173231Semax } 2320107120Sjulian 2321107120Sjulian switch (sopt->sopt_name) { 2322107120Sjulian case SO_L2CAP_IMTU: /* set incoming MTU */ 2323107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v), sizeof(v.mtu)); 2324107120Sjulian if (error == 0) 2325107120Sjulian pcb->imtu = v.mtu; 2326107120Sjulian break; 2327107120Sjulian 2328107120Sjulian case SO_L2CAP_OFLOW: /* set outgoing flow spec. */ 2329107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v),sizeof(v.flow)); 2330107120Sjulian if (error == 0) 2331107120Sjulian bcopy(&v.flow, &pcb->oflow, sizeof(pcb->oflow)); 2332107120Sjulian break; 2333107120Sjulian 2334107120Sjulian case SO_L2CAP_FLUSH: /* set flush timeout */ 2335107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v), 2336107120Sjulian sizeof(v.flush_timo)); 2337107120Sjulian if (error == 0) 2338107120Sjulian pcb->flush_timo = v.flush_timo; 2339107120Sjulian break; 2340107120Sjulian 2341107120Sjulian default: 2342107120Sjulian error = ENOPROTOOPT; 2343107120Sjulian break; 2344107120Sjulian } 2345107120Sjulian break; 2346107120Sjulian 2347107120Sjulian default: 2348107120Sjulian error = EINVAL; 2349107120Sjulian break; 2350107120Sjulian } 2351107120Sjulian 2352107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2353107120Sjulian 2354107120Sjulian return (error); 2355107120Sjulian} /* ng_btsocket_l2cap_ctloutput */ 2356107120Sjulian 2357107120Sjulian/* 2358107120Sjulian * Detach and destroy socket 2359107120Sjulian */ 2360107120Sjulian 2361157370Srwatsonvoid 2362107120Sjulianng_btsocket_l2cap_detach(struct socket *so) 2363107120Sjulian{ 2364107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2365107120Sjulian 2366157370Srwatson KASSERT(pcb != NULL, ("ng_btsocket_l2cap_detach: pcb == NULL")); 2367157370Srwatson 2368107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2369157370Srwatson return; 2370107120Sjulian 2371114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2372107120Sjulian mtx_lock(&pcb->pcb_mtx); 2373107120Sjulian 2374107120Sjulian /* XXX what to do with pending request? */ 2375107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 2376107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 2377107120Sjulian 2378107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED && 2379107120Sjulian pcb->state != NG_BTSOCKET_L2CAP_DISCONNECTING) 2380107120Sjulian /* Send disconnect request with "zero" token */ 2381107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 2382107120Sjulian 2383107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2384107120Sjulian 2385114878Sjulian LIST_REMOVE(pcb, next); 2386107120Sjulian 2387107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2388107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2389107120Sjulian 2390107120Sjulian mtx_destroy(&pcb->pcb_mtx); 2391107120Sjulian bzero(pcb, sizeof(*pcb)); 2392184205Sdes free(pcb, M_NETGRAPH_BTSOCKET_L2CAP); 2393107120Sjulian 2394114878Sjulian soisdisconnected(so); 2395114878Sjulian so->so_pcb = NULL; 2396107120Sjulian} /* ng_btsocket_l2cap_detach */ 2397107120Sjulian 2398107120Sjulian/* 2399107120Sjulian * Disconnect socket 2400107120Sjulian */ 2401107120Sjulian 2402107120Sjulianint 2403107120Sjulianng_btsocket_l2cap_disconnect(struct socket *so) 2404107120Sjulian{ 2405107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2406107120Sjulian int error = 0; 2407107120Sjulian 2408107120Sjulian if (pcb == NULL) 2409107120Sjulian return (EINVAL); 2410107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2411107120Sjulian return (EINVAL); 2412107120Sjulian 2413107120Sjulian mtx_lock(&pcb->pcb_mtx); 2414107120Sjulian 2415107120Sjulian if (pcb->state == NG_BTSOCKET_L2CAP_DISCONNECTING) { 2416107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2417107120Sjulian return (EINPROGRESS); 2418107120Sjulian } 2419107120Sjulian 2420107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 2421107120Sjulian /* XXX FIXME what to do with pending request? */ 2422107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 2423107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 2424107120Sjulian 2425107120Sjulian error = ng_btsocket_l2cap_send_l2ca_discon_req(pcb->token, pcb); 2426107120Sjulian if (error == 0) { 2427107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_DISCONNECTING; 2428107120Sjulian soisdisconnecting(so); 2429107120Sjulian 2430107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2431107120Sjulian } 2432107120Sjulian 2433107120Sjulian /* XXX FIXME what to do if error != 0 */ 2434107120Sjulian } 2435107120Sjulian 2436107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2437107120Sjulian 2438107120Sjulian return (error); 2439107120Sjulian} /* ng_btsocket_l2cap_disconnect */ 2440107120Sjulian 2441107120Sjulian/* 2442107120Sjulian * Listen on socket 2443107120Sjulian */ 2444107120Sjulian 2445107120Sjulianint 2446151888Srwatsonng_btsocket_l2cap_listen(struct socket *so, int backlog, struct thread *td) 2447107120Sjulian{ 2448107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2449142190Srwatson int error; 2450107120Sjulian 2451142190Srwatson SOCK_LOCK(so); 2452142190Srwatson error = solisten_proto_check(so); 2453142190Srwatson if (error != 0) 2454142190Srwatson goto out; 2455142190Srwatson if (pcb == NULL) { 2456142190Srwatson error = EINVAL; 2457142190Srwatson goto out; 2458142190Srwatson } 2459142190Srwatson if (ng_btsocket_l2cap_node == NULL) { 2460142190Srwatson error = EINVAL; 2461142190Srwatson goto out; 2462142190Srwatson } 2463142190Srwatson if (pcb->psm == 0) { 2464171937Semax error = EADDRNOTAVAIL; 2465142190Srwatson goto out; 2466142190Srwatson } 2467151888Srwatson solisten_proto(so, backlog); 2468142190Srwatsonout: 2469142190Srwatson SOCK_UNLOCK(so); 2470142190Srwatson return (error); 2471107120Sjulian} /* ng_btsocket_listen */ 2472107120Sjulian 2473107120Sjulian/* 2474107120Sjulian * Get peer address 2475107120Sjulian */ 2476107120Sjulian 2477107120Sjulianint 2478107120Sjulianng_btsocket_l2cap_peeraddr(struct socket *so, struct sockaddr **nam) 2479107120Sjulian{ 2480107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2481107120Sjulian struct sockaddr_l2cap sa; 2482107120Sjulian 2483107120Sjulian if (pcb == NULL) 2484107120Sjulian return (EINVAL); 2485107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2486107120Sjulian return (EINVAL); 2487107120Sjulian 2488107120Sjulian bcopy(&pcb->dst, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr)); 2489107120Sjulian sa.l2cap_psm = htole16(pcb->psm); 2490107120Sjulian sa.l2cap_len = sizeof(sa); 2491107120Sjulian sa.l2cap_family = AF_BLUETOOTH; 2492281198Stakawata sa.l2cap_cid = 0; 2493281198Stakawata sa.l2cap_bdaddr_type = pcb->dsttype; 2494126425Srwatson *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 2495107120Sjulian 2496107120Sjulian return ((*nam == NULL)? ENOMEM : 0); 2497107120Sjulian} /* ng_btsocket_l2cap_peeraddr */ 2498107120Sjulian 2499107120Sjulian/* 2500107120Sjulian * Send data to socket 2501107120Sjulian */ 2502107120Sjulian 2503107120Sjulianint 2504107120Sjulianng_btsocket_l2cap_send(struct socket *so, int flags, struct mbuf *m, 2505107120Sjulian struct sockaddr *nam, struct mbuf *control, struct thread *td) 2506107120Sjulian{ 2507107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = so2l2cap_pcb(so); 2508107120Sjulian int error = 0; 2509107120Sjulian 2510107120Sjulian if (ng_btsocket_l2cap_node == NULL) { 2511107120Sjulian error = ENETDOWN; 2512107120Sjulian goto drop; 2513107120Sjulian } 2514107120Sjulian 2515107120Sjulian /* Check socket and input */ 2516107120Sjulian if (pcb == NULL || m == NULL || control != NULL) { 2517107120Sjulian error = EINVAL; 2518107120Sjulian goto drop; 2519107120Sjulian } 2520107120Sjulian 2521107120Sjulian mtx_lock(&pcb->pcb_mtx); 2522107120Sjulian 2523107120Sjulian /* Make sure socket is connected */ 2524107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 2525107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2526107120Sjulian error = ENOTCONN; 2527107120Sjulian goto drop; 2528107120Sjulian } 2529107120Sjulian 2530107120Sjulian /* Check route */ 2531107120Sjulian if (pcb->rt == NULL || 2532107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) { 2533107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2534107120Sjulian error = ENETDOWN; 2535107120Sjulian goto drop; 2536107120Sjulian } 2537107120Sjulian 2538107120Sjulian /* Check packet size agains outgoing (peer's incoming) MTU) */ 2539107120Sjulian if (m->m_pkthdr.len > pcb->omtu) { 2540107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2541107120Sjulian"%s: Packet too big, len=%d, omtu=%d\n", __func__, m->m_pkthdr.len, pcb->omtu); 2542107120Sjulian 2543107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2544107120Sjulian error = EMSGSIZE; 2545107120Sjulian goto drop; 2546107120Sjulian } 2547107120Sjulian 2548107120Sjulian /* 2549107120Sjulian * First put packet on socket send queue. Then check if we have 2550107120Sjulian * pending timeout. If we do not have timeout then we must send 2551107120Sjulian * packet and schedule timeout. Otherwise do nothing and wait for 2552107120Sjulian * L2CA_WRITE_RSP. 2553107120Sjulian */ 2554107120Sjulian 2555107120Sjulian sbappendrecord(&pcb->so->so_snd, m); 2556107120Sjulian m = NULL; 2557107120Sjulian 2558107120Sjulian if (!(pcb->flags & NG_BTSOCKET_L2CAP_TIMO)) { 2559107120Sjulian error = ng_btsocket_l2cap_send2(pcb); 2560107120Sjulian if (error == 0) 2561107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2562107120Sjulian else 2563107120Sjulian sbdroprecord(&pcb->so->so_snd); /* XXX */ 2564107120Sjulian } 2565107120Sjulian 2566107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2567107120Sjuliandrop: 2568107120Sjulian NG_FREE_M(m); /* checks for != NULL */ 2569107120Sjulian NG_FREE_M(control); 2570107120Sjulian 2571107120Sjulian return (error); 2572107120Sjulian} /* ng_btsocket_l2cap_send */ 2573107120Sjulian 2574107120Sjulian/* 2575107120Sjulian * Send first packet in the socket queue to the L2CAP layer 2576107120Sjulian */ 2577107120Sjulian 2578107120Sjulianstatic int 2579107120Sjulianng_btsocket_l2cap_send2(ng_btsocket_l2cap_pcb_p pcb) 2580107120Sjulian{ 2581107120Sjulian struct mbuf *m = NULL; 2582107120Sjulian ng_l2cap_l2ca_hdr_t *hdr = NULL; 2583107120Sjulian int error = 0; 2584107120Sjulian 2585107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2586107120Sjulian 2587274421Sglebius if (sbavail(&pcb->so->so_snd) == 0) 2588107120Sjulian return (EINVAL); /* XXX */ 2589107120Sjulian 2590243882Sglebius m = m_dup(pcb->so->so_snd.sb_mb, M_NOWAIT); 2591107120Sjulian if (m == NULL) 2592107120Sjulian return (ENOBUFS); 2593107120Sjulian 2594107120Sjulian /* Create L2CA packet header */ 2595243882Sglebius M_PREPEND(m, sizeof(*hdr), M_NOWAIT); 2596107120Sjulian if (m != NULL) 2597107120Sjulian if (m->m_len < sizeof(*hdr)) 2598107120Sjulian m = m_pullup(m, sizeof(*hdr)); 2599107120Sjulian 2600107120Sjulian if (m == NULL) { 2601107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2602107120Sjulian"%s: Failed to create L2CA packet header\n", __func__); 2603107120Sjulian 2604107120Sjulian return (ENOBUFS); 2605107120Sjulian } 2606107120Sjulian 2607107120Sjulian hdr = mtod(m, ng_l2cap_l2ca_hdr_t *); 2608107120Sjulian hdr->token = pcb->token; 2609107120Sjulian hdr->length = m->m_pkthdr.len - sizeof(*hdr); 2610107120Sjulian hdr->lcid = pcb->cid; 2611281198Stakawata hdr->idtype = ng_btsock_l2cap_pcb_to_idtype(pcb); 2612107120Sjulian NG_BTSOCKET_L2CAP_INFO( 2613107120Sjulian"%s: Sending packet: len=%d, length=%d, lcid=%d, token=%d, state=%d\n", 2614107120Sjulian __func__, m->m_pkthdr.len, hdr->length, hdr->lcid, 2615107120Sjulian hdr->token, pcb->state); 2616107120Sjulian 2617107120Sjulian /* 2618107120Sjulian * If we got here than we have successfuly creates new L2CAP 2619107120Sjulian * data packet and now we can send it to the L2CAP layer 2620107120Sjulian */ 2621107120Sjulian 2622107120Sjulian NG_SEND_DATA_ONLY(error, pcb->rt->hook, m); 2623107120Sjulian 2624107120Sjulian return (error); 2625107120Sjulian} /* ng_btsocket_l2cap_send2 */ 2626107120Sjulian 2627107120Sjulian/* 2628107120Sjulian * Get socket address 2629107120Sjulian */ 2630107120Sjulian 2631107120Sjulianint 2632107120Sjulianng_btsocket_l2cap_sockaddr(struct socket *so, struct sockaddr **nam) 2633107120Sjulian{ 2634107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2635107120Sjulian struct sockaddr_l2cap sa; 2636107120Sjulian 2637107120Sjulian if (pcb == NULL) 2638107120Sjulian return (EINVAL); 2639107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2640107120Sjulian return (EINVAL); 2641107120Sjulian 2642107120Sjulian bcopy(&pcb->src, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr)); 2643107120Sjulian sa.l2cap_psm = htole16(pcb->psm); 2644107120Sjulian sa.l2cap_len = sizeof(sa); 2645107120Sjulian sa.l2cap_family = AF_BLUETOOTH; 2646281198Stakawata sa.l2cap_cid = 0; 2647281198Stakawata sa.l2cap_bdaddr_type = pcb->srctype; 2648107120Sjulian 2649126425Srwatson *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 2650107120Sjulian 2651107120Sjulian return ((*nam == NULL)? ENOMEM : 0); 2652107120Sjulian} /* ng_btsocket_l2cap_sockaddr */ 2653107120Sjulian 2654107120Sjulian/***************************************************************************** 2655107120Sjulian ***************************************************************************** 2656107120Sjulian ** Misc. functions 2657107120Sjulian ***************************************************************************** 2658107120Sjulian *****************************************************************************/ 2659107120Sjulian 2660107120Sjulian/* 2661107120Sjulian * Look for the socket that listens on given PSM and bdaddr. Returns exact or 2662114878Sjulian * close match (if any). Caller must hold ng_btsocket_l2cap_sockets_mtx. 2663107120Sjulian */ 2664107120Sjulian 2665107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2666107120Sjulianng_btsocket_l2cap_pcb_by_addr(bdaddr_p bdaddr, int psm) 2667107120Sjulian{ 2668107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL, p1 = NULL; 2669107120Sjulian 2670114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2671107120Sjulian 2672107120Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) { 2673107120Sjulian if (p->so == NULL || !(p->so->so_options & SO_ACCEPTCONN) || 2674107120Sjulian p->psm != psm) 2675107120Sjulian continue; 2676107120Sjulian 2677107120Sjulian if (bcmp(&p->src, bdaddr, sizeof(p->src)) == 0) 2678107120Sjulian break; 2679107120Sjulian 2680107120Sjulian if (bcmp(&p->src, NG_HCI_BDADDR_ANY, sizeof(p->src)) == 0) 2681107120Sjulian p1 = p; 2682107120Sjulian } 2683107120Sjulian 2684107120Sjulian return ((p != NULL)? p : p1); 2685107120Sjulian} /* ng_btsocket_l2cap_pcb_by_addr */ 2686107120Sjulian 2687107120Sjulian/* 2688114878Sjulian * Look for the socket that has given token. 2689114878Sjulian * Caller must hold ng_btsocket_l2cap_sockets_mtx. 2690107120Sjulian */ 2691107120Sjulian 2692107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2693107120Sjulianng_btsocket_l2cap_pcb_by_token(u_int32_t token) 2694107120Sjulian{ 2695107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL; 2696107120Sjulian 2697114878Sjulian if (token == 0) 2698114878Sjulian return (NULL); 2699107120Sjulian 2700114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2701107120Sjulian 2702114878Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) 2703114878Sjulian if (p->token == token) 2704114878Sjulian break; 2705107120Sjulian 2706107120Sjulian return (p); 2707107120Sjulian} /* ng_btsocket_l2cap_pcb_by_token */ 2708107120Sjulian 2709107120Sjulian/* 2710114878Sjulian * Look for the socket that assigned to given source address and channel ID. 2711114878Sjulian * Caller must hold ng_btsocket_l2cap_sockets_mtx 2712107120Sjulian */ 2713107120Sjulian 2714107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2715281198Stakawatang_btsocket_l2cap_pcb_by_cid(bdaddr_p src, int cid, int idtype) 2716107120Sjulian{ 2717107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL; 2718107120Sjulian 2719114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2720107120Sjulian 2721281198Stakawata LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next){ 2722281198Stakawata if (p->cid == cid && 2723281198Stakawata bcmp(src, &p->src, sizeof(p->src)) == 0&& 2724281198Stakawata ng_btsock_l2cap_pcb_to_idtype(p) == idtype) 2725107120Sjulian break; 2726107120Sjulian 2727281198Stakawata } 2728107120Sjulian return (p); 2729107120Sjulian} /* ng_btsocket_l2cap_pcb_by_cid */ 2730107120Sjulian 2731107120Sjulian/* 2732107120Sjulian * Set timeout on socket 2733107120Sjulian */ 2734107120Sjulian 2735107120Sjulianstatic void 2736107120Sjulianng_btsocket_l2cap_timeout(ng_btsocket_l2cap_pcb_p pcb) 2737107120Sjulian{ 2738107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2739107120Sjulian 2740107120Sjulian if (!(pcb->flags & NG_BTSOCKET_L2CAP_TIMO)) { 2741107120Sjulian pcb->flags |= NG_BTSOCKET_L2CAP_TIMO; 2742271908Sjhb callout_reset(&pcb->timo, bluetooth_l2cap_ertx_timeout(), 2743271908Sjhb ng_btsocket_l2cap_process_timeout, pcb); 2744107120Sjulian } else 2745107120Sjulian KASSERT(0, 2746107120Sjulian("%s: Duplicated socket timeout?!\n", __func__)); 2747107120Sjulian} /* ng_btsocket_l2cap_timeout */ 2748107120Sjulian 2749107120Sjulian/* 2750107120Sjulian * Unset timeout on socket 2751107120Sjulian */ 2752107120Sjulian 2753107120Sjulianstatic void 2754107120Sjulianng_btsocket_l2cap_untimeout(ng_btsocket_l2cap_pcb_p pcb) 2755107120Sjulian{ 2756107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2757107120Sjulian 2758107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) { 2759271908Sjhb callout_stop(&pcb->timo); 2760107120Sjulian pcb->flags &= ~NG_BTSOCKET_L2CAP_TIMO; 2761107120Sjulian } else 2762107120Sjulian KASSERT(0, 2763107120Sjulian("%s: No socket timeout?!\n", __func__)); 2764107120Sjulian} /* ng_btsocket_l2cap_untimeout */ 2765107120Sjulian 2766107120Sjulian/* 2767107120Sjulian * Process timeout on socket 2768107120Sjulian */ 2769107120Sjulian 2770107120Sjulianstatic void 2771107120Sjulianng_btsocket_l2cap_process_timeout(void *xpcb) 2772107120Sjulian{ 2773161623Semax ng_btsocket_l2cap_pcb_p pcb = (ng_btsocket_l2cap_pcb_p) xpcb; 2774107120Sjulian 2775271908Sjhb mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2776107120Sjulian 2777107120Sjulian pcb->flags &= ~NG_BTSOCKET_L2CAP_TIMO; 2778107120Sjulian pcb->so->so_error = ETIMEDOUT; 2779107120Sjulian 2780107120Sjulian switch (pcb->state) { 2781107120Sjulian case NG_BTSOCKET_L2CAP_CONNECTING: 2782107120Sjulian case NG_BTSOCKET_L2CAP_CONFIGURING: 2783107120Sjulian /* Send disconnect request with "zero" token */ 2784107120Sjulian if (pcb->cid != 0) 2785107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 2786107120Sjulian 2787107120Sjulian /* ... and close the socket */ 2788107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2789107120Sjulian soisdisconnected(pcb->so); 2790107120Sjulian break; 2791107120Sjulian 2792107120Sjulian case NG_BTSOCKET_L2CAP_OPEN: 2793107120Sjulian /* Send timeout - drop packet and wakeup sender */ 2794107120Sjulian sbdroprecord(&pcb->so->so_snd); 2795107120Sjulian sowwakeup(pcb->so); 2796107120Sjulian break; 2797107120Sjulian 2798107120Sjulian case NG_BTSOCKET_L2CAP_DISCONNECTING: 2799107120Sjulian /* Disconnect timeout - disconnect the socket anyway */ 2800107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2801107120Sjulian soisdisconnected(pcb->so); 2802107120Sjulian break; 2803107120Sjulian 2804107120Sjulian default: 2805107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2806107120Sjulian"%s: Invalid socket state=%d\n", __func__, pcb->state); 2807107120Sjulian break; 2808107120Sjulian } 2809107120Sjulian} /* ng_btsocket_l2cap_process_timeout */ 2810107120Sjulian 2811107120Sjulian/* 2812107120Sjulian * Translate HCI/L2CAP error code into "errno" code 2813107120Sjulian * XXX Note: Some L2CAP and HCI error codes have the same value, but 2814107120Sjulian * different meaning 2815107120Sjulian */ 2816107120Sjulian 2817107120Sjulianstatic int 2818107120Sjulianng_btsocket_l2cap_result2errno(int result) 2819107120Sjulian{ 2820107120Sjulian switch (result) { 2821107120Sjulian case 0x00: /* No error */ 2822107120Sjulian return (0); 2823107120Sjulian 2824107120Sjulian case 0x01: /* Unknown HCI command */ 2825107120Sjulian return (ENODEV); 2826107120Sjulian 2827107120Sjulian case 0x02: /* No connection */ 2828107120Sjulian return (ENOTCONN); 2829107120Sjulian 2830107120Sjulian case 0x03: /* Hardware failure */ 2831107120Sjulian return (EIO); 2832107120Sjulian 2833107120Sjulian case 0x04: /* Page timeout */ 2834107120Sjulian return (EHOSTDOWN); 2835107120Sjulian 2836107120Sjulian case 0x05: /* Authentication failure */ 2837107120Sjulian case 0x06: /* Key missing */ 2838107120Sjulian case 0x18: /* Pairing not allowed */ 2839107120Sjulian case 0x21: /* Role change not allowed */ 2840107120Sjulian case 0x24: /* LMP PSU not allowed */ 2841107120Sjulian case 0x25: /* Encryption mode not acceptable */ 2842107120Sjulian case 0x26: /* Unit key used */ 2843107120Sjulian return (EACCES); 2844107120Sjulian 2845107120Sjulian case 0x07: /* Memory full */ 2846107120Sjulian return (ENOMEM); 2847107120Sjulian 2848107120Sjulian case 0x08: /* Connection timeout */ 2849107120Sjulian case 0x10: /* Host timeout */ 2850107120Sjulian case 0x22: /* LMP response timeout */ 2851107120Sjulian case 0xee: /* HCI timeout */ 2852107120Sjulian case 0xeeee: /* L2CAP timeout */ 2853107120Sjulian return (ETIMEDOUT); 2854107120Sjulian 2855107120Sjulian case 0x09: /* Max number of connections */ 2856107120Sjulian case 0x0a: /* Max number of SCO connections to a unit */ 2857107120Sjulian return (EMLINK); 2858107120Sjulian 2859107120Sjulian case 0x0b: /* ACL connection already exists */ 2860107120Sjulian return (EEXIST); 2861107120Sjulian 2862107120Sjulian case 0x0c: /* Command disallowed */ 2863107120Sjulian return (EBUSY); 2864107120Sjulian 2865107120Sjulian case 0x0d: /* Host rejected due to limited resources */ 2866107120Sjulian case 0x0e: /* Host rejected due to securiity reasons */ 2867107120Sjulian case 0x0f: /* Host rejected due to remote unit is a personal unit */ 2868107120Sjulian case 0x1b: /* SCO offset rejected */ 2869107120Sjulian case 0x1c: /* SCO interval rejected */ 2870107120Sjulian case 0x1d: /* SCO air mode rejected */ 2871107120Sjulian return (ECONNREFUSED); 2872107120Sjulian 2873107120Sjulian case 0x11: /* Unsupported feature or parameter value */ 2874107120Sjulian case 0x19: /* Unknown LMP PDU */ 2875107120Sjulian case 0x1a: /* Unsupported remote feature */ 2876107120Sjulian case 0x20: /* Unsupported LMP parameter value */ 2877107120Sjulian case 0x27: /* QoS is not supported */ 2878107120Sjulian case 0x29: /* Paring with unit key not supported */ 2879107120Sjulian return (EOPNOTSUPP); 2880107120Sjulian 2881107120Sjulian case 0x12: /* Invalid HCI command parameter */ 2882107120Sjulian case 0x1e: /* Invalid LMP parameters */ 2883107120Sjulian return (EINVAL); 2884107120Sjulian 2885107120Sjulian case 0x13: /* Other end terminated connection: User ended connection */ 2886107120Sjulian case 0x14: /* Other end terminated connection: Low resources */ 2887107120Sjulian case 0x15: /* Other end terminated connection: About to power off */ 2888107120Sjulian return (ECONNRESET); 2889107120Sjulian 2890107120Sjulian case 0x16: /* Connection terminated by local host */ 2891107120Sjulian return (ECONNABORTED); 2892107120Sjulian 2893107120Sjulian#if 0 /* XXX not yet */ 2894107120Sjulian case 0x17: /* Repeated attempts */ 2895107120Sjulian case 0x1f: /* Unspecified error */ 2896107120Sjulian case 0x23: /* LMP error transaction collision */ 2897107120Sjulian case 0x28: /* Instant passed */ 2898107120Sjulian#endif 2899107120Sjulian } 2900107120Sjulian 2901107120Sjulian return (ENOSYS); 2902107120Sjulian} /* ng_btsocket_l2cap_result2errno */ 2903107120Sjulian 2904