ng_btsocket_l2cap.c revision 160549
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 160549 2006-07-21 17:11:15Z rwatson $ 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> 53107120Sjulian#include <netgraph/ng_message.h> 54107120Sjulian#include <netgraph/netgraph.h> 55128688Semax#include <netgraph/bluetooth/include/ng_bluetooth.h> 56128688Semax#include <netgraph/bluetooth/include/ng_hci.h> 57128688Semax#include <netgraph/bluetooth/include/ng_l2cap.h> 58128688Semax#include <netgraph/bluetooth/include/ng_btsocket.h> 59128688Semax#include <netgraph/bluetooth/include/ng_btsocket_l2cap.h> 60107120Sjulian 61107120Sjulian/* MALLOC define */ 62107120Sjulian#ifdef NG_SEPARATE_MALLOC 63107120SjulianMALLOC_DEFINE(M_NETGRAPH_BTSOCKET_L2CAP, "netgraph_btsocks_l2cap", 64107120Sjulian "Netgraph Bluetooth L2CAP sockets"); 65107120Sjulian#else 66107120Sjulian#define M_NETGRAPH_BTSOCKET_L2CAP M_NETGRAPH 67107120Sjulian#endif /* NG_SEPARATE_MALLOC */ 68107120Sjulian 69107120Sjulian/* Netgraph node methods */ 70107120Sjulianstatic ng_constructor_t ng_btsocket_l2cap_node_constructor; 71107120Sjulianstatic ng_rcvmsg_t ng_btsocket_l2cap_node_rcvmsg; 72107120Sjulianstatic ng_shutdown_t ng_btsocket_l2cap_node_shutdown; 73107120Sjulianstatic ng_newhook_t ng_btsocket_l2cap_node_newhook; 74107120Sjulianstatic ng_connect_t ng_btsocket_l2cap_node_connect; 75107120Sjulianstatic ng_rcvdata_t ng_btsocket_l2cap_node_rcvdata; 76107120Sjulianstatic ng_disconnect_t ng_btsocket_l2cap_node_disconnect; 77107120Sjulian 78107120Sjulianstatic void ng_btsocket_l2cap_input (void *, int); 79107120Sjulianstatic void ng_btsocket_l2cap_rtclean (void *, int); 80107120Sjulian 81107120Sjulian/* Netgraph type descriptor */ 82107120Sjulianstatic struct ng_type typestruct = { 83129823Sjulian .version = NG_ABI_VERSION, 84129823Sjulian .name = NG_BTSOCKET_L2CAP_NODE_TYPE, 85129823Sjulian .constructor = ng_btsocket_l2cap_node_constructor, 86129823Sjulian .rcvmsg = ng_btsocket_l2cap_node_rcvmsg, 87129823Sjulian .shutdown = ng_btsocket_l2cap_node_shutdown, 88129823Sjulian .newhook = ng_btsocket_l2cap_node_newhook, 89129823Sjulian .connect = ng_btsocket_l2cap_node_connect, 90129823Sjulian .rcvdata = ng_btsocket_l2cap_node_rcvdata, 91129823Sjulian .disconnect = ng_btsocket_l2cap_node_disconnect, 92107120Sjulian}; 93107120Sjulian 94107120Sjulian/* Globals */ 95107120Sjulianextern int ifqmaxlen; 96107120Sjulianstatic u_int32_t ng_btsocket_l2cap_debug_level; 97107120Sjulianstatic node_p ng_btsocket_l2cap_node; 98107120Sjulianstatic struct ng_bt_itemq ng_btsocket_l2cap_queue; 99107120Sjulianstatic struct mtx ng_btsocket_l2cap_queue_mtx; 100107120Sjulianstatic struct task ng_btsocket_l2cap_queue_task; 101107120Sjulianstatic LIST_HEAD(, ng_btsocket_l2cap_pcb) ng_btsocket_l2cap_sockets; 102107120Sjulianstatic struct mtx ng_btsocket_l2cap_sockets_mtx; 103107120Sjulianstatic LIST_HEAD(, ng_btsocket_l2cap_rtentry) ng_btsocket_l2cap_rt; 104107120Sjulianstatic struct mtx ng_btsocket_l2cap_rt_mtx; 105107120Sjulianstatic struct task ng_btsocket_l2cap_rt_task; 106107120Sjulian 107107120Sjulian/* Sysctl tree */ 108107120SjulianSYSCTL_DECL(_net_bluetooth_l2cap_sockets); 109107120SjulianSYSCTL_NODE(_net_bluetooth_l2cap_sockets, OID_AUTO, seq, CTLFLAG_RW, 110107120Sjulian 0, "Bluetooth SEQPACKET L2CAP sockets family"); 111107120SjulianSYSCTL_INT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, debug_level, 112107120Sjulian CTLFLAG_RW, 113107120Sjulian &ng_btsocket_l2cap_debug_level, NG_BTSOCKET_WARN_LEVEL, 114107120Sjulian "Bluetooth SEQPACKET L2CAP sockets debug level"); 115107120SjulianSYSCTL_INT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, queue_len, 116107120Sjulian CTLFLAG_RD, 117107120Sjulian &ng_btsocket_l2cap_queue.len, 0, 118107120Sjulian "Bluetooth SEQPACKET L2CAP sockets input queue length"); 119107120SjulianSYSCTL_INT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, queue_maxlen, 120107120Sjulian CTLFLAG_RD, 121107120Sjulian &ng_btsocket_l2cap_queue.maxlen, 0, 122107120Sjulian "Bluetooth SEQPACKET L2CAP sockets input queue max. length"); 123107120SjulianSYSCTL_INT(_net_bluetooth_l2cap_sockets_seq, OID_AUTO, queue_drops, 124107120Sjulian CTLFLAG_RD, 125107120Sjulian &ng_btsocket_l2cap_queue.drops, 0, 126107120Sjulian "Bluetooth SEQPACKET L2CAP sockets input queue drops"); 127107120Sjulian 128107120Sjulian/* Debug */ 129107120Sjulian#define NG_BTSOCKET_L2CAP_INFO \ 130107120Sjulian if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_INFO_LEVEL) \ 131107120Sjulian printf 132107120Sjulian 133107120Sjulian#define NG_BTSOCKET_L2CAP_WARN \ 134107120Sjulian if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_WARN_LEVEL) \ 135107120Sjulian printf 136107120Sjulian 137107120Sjulian#define NG_BTSOCKET_L2CAP_ERR \ 138107120Sjulian if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_ERR_LEVEL) \ 139107120Sjulian printf 140107120Sjulian 141107120Sjulian#define NG_BTSOCKET_L2CAP_ALERT \ 142107120Sjulian if (ng_btsocket_l2cap_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \ 143107120Sjulian printf 144107120Sjulian 145107120Sjulian/* 146107120Sjulian * Netgraph message processing routines 147107120Sjulian */ 148107120Sjulian 149107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_con_req_rsp 150114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 151107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_con_rsp_rsp 152114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 153107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_con_ind 154114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 155107120Sjulian 156107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_cfg_req_rsp 157114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 158107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp 159114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 160107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_cfg_ind 161114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 162107120Sjulian 163107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_discon_rsp 164114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 165107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_discon_ind 166114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 167107120Sjulian 168107120Sjulianstatic int ng_btsocket_l2cap_process_l2ca_write_rsp 169114878Sjulian (struct ng_mesg *, ng_btsocket_l2cap_rtentry_p, struct socket **); 170107120Sjulian 171107120Sjulian/* 172107120Sjulian * Send L2CA_xxx messages to the lower layer 173107120Sjulian */ 174107120Sjulian 175107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_con_req 176107120Sjulian (ng_btsocket_l2cap_pcb_p); 177107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_con_rsp_req 178107120Sjulian (u_int32_t, ng_btsocket_l2cap_rtentry_p, bdaddr_p, int, int, int); 179107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_cfg_req 180107120Sjulian (ng_btsocket_l2cap_pcb_p); 181107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_cfg_rsp 182107120Sjulian (ng_btsocket_l2cap_pcb_p); 183107120Sjulianstatic int ng_btsocket_l2cap_send_l2ca_discon_req 184107120Sjulian (u_int32_t, ng_btsocket_l2cap_pcb_p); 185107120Sjulian 186107120Sjulianstatic int ng_btsocket_l2cap_send2 187107120Sjulian (ng_btsocket_l2cap_pcb_p); 188107120Sjulian 189107120Sjulian/* 190107120Sjulian * Timeout processing routines 191107120Sjulian */ 192107120Sjulian 193107120Sjulianstatic void ng_btsocket_l2cap_timeout (ng_btsocket_l2cap_pcb_p); 194107120Sjulianstatic void ng_btsocket_l2cap_untimeout (ng_btsocket_l2cap_pcb_p); 195107120Sjulianstatic void ng_btsocket_l2cap_process_timeout (void *); 196107120Sjulian 197107120Sjulian/* 198107120Sjulian * Other stuff 199107120Sjulian */ 200107120Sjulian 201107120Sjulianstatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_addr(bdaddr_p, int); 202107120Sjulianstatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_token(u_int32_t); 203107120Sjulianstatic ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_cid (bdaddr_p, int); 204107120Sjulianstatic int ng_btsocket_l2cap_result2errno(int); 205107120Sjulian 206114878Sjulian#define ng_btsocket_l2cap_wakeup_input_task() \ 207114878Sjulian taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_queue_task) 208114878Sjulian 209114878Sjulian#define ng_btsocket_l2cap_wakeup_route_task() \ 210114878Sjulian taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_rt_task) 211114878Sjulian 212107120Sjulian/***************************************************************************** 213107120Sjulian ***************************************************************************** 214107120Sjulian ** Netgraph node interface 215107120Sjulian ***************************************************************************** 216107120Sjulian *****************************************************************************/ 217107120Sjulian 218107120Sjulian/* 219107120Sjulian * Netgraph node constructor. Do not allow to create node of this type. 220107120Sjulian */ 221107120Sjulian 222107120Sjulianstatic int 223107120Sjulianng_btsocket_l2cap_node_constructor(node_p node) 224107120Sjulian{ 225107120Sjulian return (EINVAL); 226107120Sjulian} /* ng_btsocket_l2cap_node_constructor */ 227107120Sjulian 228107120Sjulian/* 229107120Sjulian * Do local shutdown processing. Let old node go and create new fresh one. 230107120Sjulian */ 231107120Sjulian 232107120Sjulianstatic int 233107120Sjulianng_btsocket_l2cap_node_shutdown(node_p node) 234107120Sjulian{ 235107120Sjulian int error = 0; 236107120Sjulian 237107120Sjulian NG_NODE_UNREF(node); 238107120Sjulian 239107120Sjulian /* Create new node */ 240107120Sjulian error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_node); 241107120Sjulian if (error != 0) { 242107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 243107120Sjulian"%s: Could not create Netgraph node, error=%d\n", __func__, error); 244107120Sjulian 245107120Sjulian ng_btsocket_l2cap_node = NULL; 246107120Sjulian 247107120Sjulian return (error); 248107120Sjulian } 249107120Sjulian 250107120Sjulian error = ng_name_node(ng_btsocket_l2cap_node, 251107120Sjulian NG_BTSOCKET_L2CAP_NODE_TYPE); 252123812Salfred if (error != 0) { 253107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 254107120Sjulian"%s: Could not name Netgraph node, error=%d\n", __func__, error); 255107120Sjulian 256107120Sjulian NG_NODE_UNREF(ng_btsocket_l2cap_node); 257107120Sjulian ng_btsocket_l2cap_node = NULL; 258107120Sjulian 259107120Sjulian return (error); 260107120Sjulian } 261107120Sjulian 262107120Sjulian return (0); 263107120Sjulian} /* ng_btsocket_l2cap_node_shutdown */ 264107120Sjulian 265107120Sjulian/* 266107120Sjulian * We allow any hook to be connected to the node. 267107120Sjulian */ 268107120Sjulian 269107120Sjulianstatic int 270107120Sjulianng_btsocket_l2cap_node_newhook(node_p node, hook_p hook, char const *name) 271107120Sjulian{ 272107120Sjulian return (0); 273107120Sjulian} /* ng_btsocket_l2cap_node_newhook */ 274107120Sjulian 275107120Sjulian/* 276107120Sjulian * Just say "YEP, that's OK by me!" 277107120Sjulian */ 278107120Sjulian 279107120Sjulianstatic int 280107120Sjulianng_btsocket_l2cap_node_connect(hook_p hook) 281107120Sjulian{ 282107120Sjulian NG_HOOK_SET_PRIVATE(hook, NULL); 283107120Sjulian NG_HOOK_REF(hook); /* Keep extra reference to the hook */ 284107120Sjulian 285107120Sjulian#if 0 286107120Sjulian NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook)); 287107120Sjulian NG_HOOK_FORCE_QUEUE(hook); 288107120Sjulian#endif 289107120Sjulian 290107120Sjulian return (0); 291107120Sjulian} /* ng_btsocket_l2cap_node_connect */ 292107120Sjulian 293107120Sjulian/* 294107120Sjulian * Hook disconnection. Schedule route cleanup task 295107120Sjulian */ 296107120Sjulian 297107120Sjulianstatic int 298107120Sjulianng_btsocket_l2cap_node_disconnect(hook_p hook) 299107120Sjulian{ 300107120Sjulian /* 301107120Sjulian * If hook has private information than we must have this hook in 302107120Sjulian * the routing table and must schedule cleaning for the routing table. 303107120Sjulian * Otherwise hook was connected but we never got "hook_info" message, 304107120Sjulian * so we have never added this hook to the routing table and it save 305107120Sjulian * to just delete it. 306107120Sjulian */ 307107120Sjulian 308107120Sjulian if (NG_HOOK_PRIVATE(hook) != NULL) 309114878Sjulian return (ng_btsocket_l2cap_wakeup_route_task()); 310107120Sjulian 311107120Sjulian NG_HOOK_UNREF(hook); /* Remove extra reference */ 312107120Sjulian 313107120Sjulian return (0); 314107120Sjulian} /* ng_btsocket_l2cap_node_disconnect */ 315107120Sjulian 316107120Sjulian/* 317107120Sjulian * Process incoming messages 318107120Sjulian */ 319107120Sjulian 320107120Sjulianstatic int 321107120Sjulianng_btsocket_l2cap_node_rcvmsg(node_p node, item_p item, hook_p hook) 322107120Sjulian{ 323107120Sjulian struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ 324107120Sjulian int error = 0; 325107120Sjulian 326107120Sjulian if (msg != NULL && msg->header.typecookie == NGM_L2CAP_COOKIE) { 327107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 328107120Sjulian if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_queue)) { 329107120Sjulian NG_BTSOCKET_L2CAP_ERR( 330107120Sjulian"%s: Input queue is full (msg)\n", __func__); 331107120Sjulian 332107120Sjulian NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_queue); 333107120Sjulian NG_FREE_ITEM(item); 334107120Sjulian error = ENOBUFS; 335107120Sjulian } else { 336107120Sjulian if (hook != NULL) { 337107120Sjulian NG_HOOK_REF(hook); 338107120Sjulian NGI_SET_HOOK(item, hook); 339107120Sjulian } 340107120Sjulian 341107120Sjulian NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_queue, item); 342114878Sjulian error = ng_btsocket_l2cap_wakeup_input_task(); 343107120Sjulian } 344107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 345107120Sjulian } else { 346107120Sjulian NG_FREE_ITEM(item); 347107120Sjulian error = EINVAL; 348107120Sjulian } 349107120Sjulian 350107120Sjulian return (error); 351107120Sjulian} /* ng_btsocket_l2cap_node_rcvmsg */ 352107120Sjulian 353107120Sjulian/* 354107120Sjulian * Receive data on a hook 355107120Sjulian */ 356107120Sjulian 357107120Sjulianstatic int 358107120Sjulianng_btsocket_l2cap_node_rcvdata(hook_p hook, item_p item) 359107120Sjulian{ 360107120Sjulian int error = 0; 361107120Sjulian 362107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 363107120Sjulian if (NG_BT_ITEMQ_FULL(&ng_btsocket_l2cap_queue)) { 364107120Sjulian NG_BTSOCKET_L2CAP_ERR( 365107120Sjulian"%s: Input queue is full (data)\n", __func__); 366107120Sjulian 367107120Sjulian NG_BT_ITEMQ_DROP(&ng_btsocket_l2cap_queue); 368107120Sjulian NG_FREE_ITEM(item); 369107120Sjulian error = ENOBUFS; 370107120Sjulian } else { 371107120Sjulian NG_HOOK_REF(hook); 372107120Sjulian NGI_SET_HOOK(item, hook); 373107120Sjulian 374107120Sjulian NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_l2cap_queue, item); 375114878Sjulian error = ng_btsocket_l2cap_wakeup_input_task(); 376107120Sjulian } 377107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 378107120Sjulian 379107120Sjulian return (error); 380107120Sjulian} /* ng_btsocket_l2cap_node_rcvdata */ 381107120Sjulian 382107120Sjulian/* 383107120Sjulian * Process L2CA_Connect respose. Socket layer must have initiated connection, 384107120Sjulian * so we have to have a socket associated with message token. 385107120Sjulian */ 386107120Sjulian 387107120Sjulianstatic int 388107120Sjulianng_btsocket_l2cap_process_l2ca_con_req_rsp(struct ng_mesg *msg, 389114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 390107120Sjulian{ 391107120Sjulian ng_l2cap_l2ca_con_op *op = NULL; 392107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 393107120Sjulian int error = 0; 394107120Sjulian 395107120Sjulian if (msg->header.arglen != sizeof(*op)) 396107120Sjulian return (EMSGSIZE); 397107120Sjulian 398107120Sjulian op = (ng_l2cap_l2ca_con_op *)(msg->data); 399107120Sjulian 400114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 401114878Sjulian 402107120Sjulian /* Look for the socket with the token */ 403107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 404114878Sjulian if (pcb == NULL) { 405114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 406107120Sjulian return (ENOENT); 407114878Sjulian } 408107120Sjulian 409107120Sjulian mtx_lock(&pcb->pcb_mtx); 410107120Sjulian 411107120Sjulian NG_BTSOCKET_L2CAP_INFO( 412107120Sjulian"%s: Got L2CA_Connect response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 413107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, status=%d, " \ 414107120Sjulian"state=%d\n", __func__, msg->header.token, 415107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 416107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 417107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 418107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 419107120Sjulian pcb->psm, op->lcid, op->result, op->status, 420107120Sjulian pcb->state); 421107120Sjulian 422107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONNECTING) { 423107120Sjulian mtx_unlock(&pcb->pcb_mtx); 424114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 425114878Sjulian 426107120Sjulian return (ENOENT); 427107120Sjulian } 428107120Sjulian 429107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 430107120Sjulian 431107120Sjulian if (op->result == NG_L2CAP_PENDING) { 432107120Sjulian ng_btsocket_l2cap_timeout(pcb); 433107120Sjulian mtx_unlock(&pcb->pcb_mtx); 434114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 435114878Sjulian 436107120Sjulian return (0); 437107120Sjulian } 438107120Sjulian 439107120Sjulian if (op->result == NG_L2CAP_SUCCESS) { 440107120Sjulian /* 441107120Sjulian * Channel is now open, so update local channel ID and 442107120Sjulian * start configuration process. Source and destination 443107120Sjulian * addresses as well as route must be already set. 444107120Sjulian */ 445107120Sjulian 446107120Sjulian pcb->cid = op->lcid; 447107120Sjulian 448107120Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb); 449107120Sjulian if (error != 0) { 450107120Sjulian /* Send disconnect request with "zero" token */ 451107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 452107120Sjulian 453107120Sjulian /* ... and close the socket */ 454107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 455107120Sjulian soisdisconnected(pcb->so); 456114878Sjulian 457114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 458114878Sjulian *sop = pcb->so; 459107120Sjulian } else { 460107120Sjulian pcb->cfg_state = NG_BTSOCKET_L2CAP_CFG_IN_SENT; 461107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONFIGURING; 462107120Sjulian 463107120Sjulian ng_btsocket_l2cap_timeout(pcb); 464107120Sjulian } 465107120Sjulian } else { 466107120Sjulian /* 467107120Sjulian * We have failed to open connection, so convert result 468107120Sjulian * code to "errno" code and disconnect the socket. Channel 469107120Sjulian * already has been closed. 470107120Sjulian */ 471107120Sjulian 472107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 473107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 474107120Sjulian soisdisconnected(pcb->so); 475114878Sjulian 476114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 477114878Sjulian *sop = pcb->so; 478107120Sjulian } 479107120Sjulian 480107120Sjulian mtx_unlock(&pcb->pcb_mtx); 481114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 482107120Sjulian 483107120Sjulian return (error); 484107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_con_req_rsp */ 485107120Sjulian 486107120Sjulian/* 487107120Sjulian * Process L2CA_ConnectRsp response 488107120Sjulian */ 489107120Sjulian 490107120Sjulianstatic int 491107120Sjulianng_btsocket_l2cap_process_l2ca_con_rsp_rsp(struct ng_mesg *msg, 492114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 493107120Sjulian{ 494107120Sjulian ng_l2cap_l2ca_con_rsp_op *op = NULL; 495107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 496107120Sjulian 497107120Sjulian if (msg->header.arglen != sizeof(*op)) 498107120Sjulian return (EMSGSIZE); 499107120Sjulian 500107120Sjulian op = (ng_l2cap_l2ca_con_rsp_op *)(msg->data); 501107120Sjulian 502114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 503114878Sjulian 504107120Sjulian /* Look for the socket with the token */ 505107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 506114878Sjulian if (pcb == NULL) { 507114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 508107120Sjulian return (ENOENT); 509114878Sjulian } 510107120Sjulian 511107120Sjulian mtx_lock(&pcb->pcb_mtx); 512107120Sjulian 513107120Sjulian NG_BTSOCKET_L2CAP_INFO( 514107120Sjulian"%s: Got L2CA_ConnectRsp response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 515107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d\n", 516107120Sjulian __func__, msg->header.token, 517107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 518107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 519107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 520107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 521107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state); 522107120Sjulian 523107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONNECTING) { 524107120Sjulian mtx_unlock(&pcb->pcb_mtx); 525114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 526114878Sjulian 527107120Sjulian return (ENOENT); 528107120Sjulian } 529107120Sjulian 530107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 531107120Sjulian 532107120Sjulian /* Check the result and disconnect the socket on failure */ 533107120Sjulian if (op->result != NG_L2CAP_SUCCESS) { 534107120Sjulian /* Close the socket - channel already closed */ 535107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 536107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 537107120Sjulian soisdisconnected(pcb->so); 538114878Sjulian 539114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 540114878Sjulian *sop = pcb->so; 541107120Sjulian } else { 542107120Sjulian /* Move to CONFIGURING state and wait for CONFIG_IND */ 543107120Sjulian pcb->cfg_state = 0; 544107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONFIGURING; 545107120Sjulian ng_btsocket_l2cap_timeout(pcb); 546107120Sjulian } 547107120Sjulian 548107120Sjulian mtx_unlock(&pcb->pcb_mtx); 549114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 550107120Sjulian 551107120Sjulian return (0); 552107120Sjulian} /* ng_btsocket_process_l2ca_con_rsp_rsp */ 553107120Sjulian 554107120Sjulian/* 555107120Sjulian * Process L2CA_Connect indicator. Find socket that listens on address 556107120Sjulian * and PSM. Find exact or closest match. Create new socket and initiate 557107120Sjulian * connection. 558107120Sjulian */ 559107120Sjulian 560107120Sjulianstatic int 561107120Sjulianng_btsocket_l2cap_process_l2ca_con_ind(struct ng_mesg *msg, 562114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 563107120Sjulian{ 564107120Sjulian ng_l2cap_l2ca_con_ind_ip *ip = NULL; 565107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL, *pcb1 = NULL; 566107120Sjulian int error = 0; 567107120Sjulian u_int32_t token = 0; 568107120Sjulian u_int16_t result = 0; 569107120Sjulian 570107120Sjulian if (msg->header.arglen != sizeof(*ip)) 571107120Sjulian return (EMSGSIZE); 572107120Sjulian 573107120Sjulian ip = (ng_l2cap_l2ca_con_ind_ip *)(msg->data); 574107120Sjulian 575107120Sjulian NG_BTSOCKET_L2CAP_INFO( 576107120Sjulian"%s: Got L2CA_Connect indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 577107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, ident=%d\n", 578107120Sjulian __func__, 579107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 580107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 581107120Sjulian ip->bdaddr.b[5], ip->bdaddr.b[4], ip->bdaddr.b[3], 582107120Sjulian ip->bdaddr.b[2], ip->bdaddr.b[1], ip->bdaddr.b[0], 583107120Sjulian ip->psm, ip->lcid, ip->ident); 584114878Sjulian 585114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 586107120Sjulian 587107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_addr(&rt->src, ip->psm); 588107120Sjulian if (pcb != NULL) { 589107120Sjulian struct socket *so1 = NULL; 590107120Sjulian 591107120Sjulian mtx_lock(&pcb->pcb_mtx); 592107120Sjulian 593107120Sjulian /* 594107120Sjulian * First check the pending connections queue and if we have 595107120Sjulian * space then create new socket and set proper source address. 596107120Sjulian */ 597107120Sjulian 598107120Sjulian if (pcb->so->so_qlen <= pcb->so->so_qlimit) 599107120Sjulian so1 = sonewconn(pcb->so, 0); 600107120Sjulian 601107120Sjulian if (so1 == NULL) { 602107120Sjulian result = NG_L2CAP_NO_RESOURCES; 603107120Sjulian goto respond; 604107120Sjulian } 605107120Sjulian 606107120Sjulian /* 607107120Sjulian * If we got here than we have created new socket. So complete 608107120Sjulian * connection. If we we listening on specific address then copy 609107120Sjulian * source address from listening socket, otherwise copy source 610107120Sjulian * address from hook's routing information. 611107120Sjulian */ 612107120Sjulian 613107120Sjulian pcb1 = so2l2cap_pcb(so1); 614107120Sjulian KASSERT((pcb1 != NULL), 615107120Sjulian("%s: pcb1 == NULL\n", __func__)); 616107120Sjulian 617114878Sjulian mtx_lock(&pcb1->pcb_mtx); 618107120Sjulian 619107120Sjulian if (bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)) != 0) 620107120Sjulian bcopy(&pcb->src, &pcb1->src, sizeof(pcb1->src)); 621107120Sjulian else 622107120Sjulian bcopy(&rt->src, &pcb1->src, sizeof(pcb1->src)); 623107120Sjulian 624107120Sjulian pcb1->flags &= ~NG_BTSOCKET_L2CAP_CLIENT; 625107120Sjulian 626107120Sjulian bcopy(&ip->bdaddr, &pcb1->dst, sizeof(pcb1->dst)); 627107120Sjulian pcb1->psm = ip->psm; 628107120Sjulian pcb1->cid = ip->lcid; 629107120Sjulian pcb1->rt = rt; 630107120Sjulian 631107120Sjulian /* Copy socket settings */ 632107120Sjulian pcb1->imtu = pcb->imtu; 633107120Sjulian bcopy(&pcb->oflow, &pcb1->oflow, sizeof(pcb1->oflow)); 634107120Sjulian pcb1->flush_timo = pcb->flush_timo; 635107120Sjulian 636107120Sjulian token = pcb1->token; 637107120Sjulian } else 638107120Sjulian /* Nobody listens on requested BDADDR/PSM */ 639107120Sjulian result = NG_L2CAP_PSM_NOT_SUPPORTED; 640107120Sjulian 641107120Sjulianrespond: 642107120Sjulian error = ng_btsocket_l2cap_send_l2ca_con_rsp_req(token, rt, 643107120Sjulian &ip->bdaddr, ip->ident, ip->lcid, result); 644107120Sjulian if (pcb1 != NULL) { 645107120Sjulian if (error != 0) { 646107120Sjulian pcb1->so->so_error = error; 647107120Sjulian pcb1->state = NG_BTSOCKET_L2CAP_CLOSED; 648107120Sjulian soisdisconnected(pcb1->so); 649114878Sjulian 650114878Sjulian if (pcb1->so->so_state & SS_NOFDREF) 651114878Sjulian *sop = pcb1->so; 652107120Sjulian } else { 653107120Sjulian pcb1->state = NG_BTSOCKET_L2CAP_CONNECTING; 654107120Sjulian soisconnecting(pcb1->so); 655107120Sjulian 656107120Sjulian ng_btsocket_l2cap_timeout(pcb1); 657107120Sjulian } 658107120Sjulian 659107120Sjulian mtx_unlock(&pcb1->pcb_mtx); 660107120Sjulian } 661107120Sjulian 662107120Sjulian if (pcb != NULL) 663107120Sjulian mtx_unlock(&pcb->pcb_mtx); 664107120Sjulian 665114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 666114878Sjulian 667107120Sjulian return (error); 668107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_con_ind */ 669107120Sjulian 670107120Sjulian/* 671107120Sjulian * Process L2CA_Config response 672107120Sjulian */ 673107120Sjulian 674107120Sjulianstatic int 675107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_req_rsp(struct ng_mesg *msg, 676114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 677107120Sjulian{ 678107120Sjulian ng_l2cap_l2ca_cfg_op *op = NULL; 679107120Sjulian ng_btsocket_l2cap_pcb_p pcb = NULL; 680107120Sjulian 681107120Sjulian if (msg->header.arglen != sizeof(*op)) 682107120Sjulian return (EMSGSIZE); 683107120Sjulian 684107120Sjulian op = (ng_l2cap_l2ca_cfg_op *)(msg->data); 685107120Sjulian 686114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 687114878Sjulian 688107120Sjulian /* 689107120Sjulian * Socket must have issued a Configure request, so we must have a 690107120Sjulian * socket that wants to be configured. Use Netgraph message token 691107120Sjulian * to find it 692107120Sjulian */ 693107120Sjulian 694107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 695107120Sjulian if (pcb == NULL) { 696107120Sjulian /* 697107120Sjulian * XXX FIXME what to do here? We could not find a 698107120Sjulian * socket with requested token. We even can not send 699107120Sjulian * Disconnect, because we do not know channel ID 700107120Sjulian */ 701107120Sjulian 702114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 703107120Sjulian return (ENOENT); 704107120Sjulian } 705107120Sjulian 706107120Sjulian mtx_lock(&pcb->pcb_mtx); 707107120Sjulian 708107120Sjulian NG_BTSOCKET_L2CAP_INFO( 709107120Sjulian"%s: Got L2CA_Config response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 710107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d, " \ 711107120Sjulian"cfg_state=%x\n", 712107120Sjulian __func__, msg->header.token, 713107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 714107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 715107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 716107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 717107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state, pcb->cfg_state); 718107120Sjulian 719107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 720107120Sjulian mtx_unlock(&pcb->pcb_mtx); 721114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 722114878Sjulian 723107120Sjulian return (ENOENT); 724107120Sjulian } 725107120Sjulian 726107120Sjulian if (op->result == NG_L2CAP_SUCCESS) { 727107120Sjulian /* 728107120Sjulian * XXX FIXME Actually set flush and link timeout. 729107120Sjulian * Set QoS here if required. Resolve conficts (flush_timo). 730107120Sjulian * Save incoming MTU (peer's outgoing MTU) and outgoing flow 731107120Sjulian * spec. 732107120Sjulian */ 733107120Sjulian 734107120Sjulian pcb->imtu = op->imtu; 735107120Sjulian bcopy(&op->oflow, &pcb->oflow, sizeof(pcb->oflow)); 736107120Sjulian pcb->flush_timo = op->flush_timo; 737107120Sjulian 738107120Sjulian /* 739107120Sjulian * We have configured incoming side, so record it and check 740107120Sjulian * if configuration is complete. If complete then mark socket 741107120Sjulian * as connected, otherwise wait for the peer. 742107120Sjulian */ 743107120Sjulian 744107120Sjulian pcb->cfg_state &= ~NG_BTSOCKET_L2CAP_CFG_IN_SENT; 745107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_IN; 746107120Sjulian 747107120Sjulian if (pcb->cfg_state == NG_BTSOCKET_L2CAP_CFG_BOTH) { 748107120Sjulian /* Configuration complete - mark socket as open */ 749107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 750107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_OPEN; 751107120Sjulian soisconnected(pcb->so); 752107120Sjulian } 753107120Sjulian } else { 754107120Sjulian /* 755107120Sjulian * Something went wrong. Could be unacceptable parameters, 756107120Sjulian * reject or unknown option. That's too bad, but we will 757107120Sjulian * not negotiate. Send Disconnect and close the channel. 758107120Sjulian */ 759107120Sjulian 760107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 761107120Sjulian 762107120Sjulian switch (op->result) { 763107120Sjulian case NG_L2CAP_UNACCEPTABLE_PARAMS: 764107120Sjulian case NG_L2CAP_UNKNOWN_OPTION: 765107120Sjulian pcb->so->so_error = EINVAL; 766107120Sjulian break; 767107120Sjulian 768107120Sjulian default: 769107120Sjulian pcb->so->so_error = ECONNRESET; 770107120Sjulian break; 771107120Sjulian } 772107120Sjulian 773107120Sjulian /* Send disconnect with "zero" token */ 774107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 775107120Sjulian 776107120Sjulian /* ... and close the socket */ 777107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 778107120Sjulian soisdisconnected(pcb->so); 779114878Sjulian 780114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 781114878Sjulian *sop = pcb->so; 782107120Sjulian } 783107120Sjulian 784107120Sjulian mtx_unlock(&pcb->pcb_mtx); 785114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 786107120Sjulian 787107120Sjulian return (0); 788107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_cfg_req_rsp */ 789107120Sjulian 790107120Sjulian/* 791107120Sjulian * Process L2CA_ConfigRsp response 792107120Sjulian */ 793107120Sjulian 794107120Sjulianstatic int 795107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp(struct ng_mesg *msg, 796114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 797107120Sjulian{ 798107120Sjulian ng_l2cap_l2ca_cfg_rsp_op *op = NULL; 799107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 800107120Sjulian int error = 0; 801107120Sjulian 802107120Sjulian if (msg->header.arglen != sizeof(*op)) 803107120Sjulian return (EMSGSIZE); 804107120Sjulian 805107120Sjulian op = (ng_l2cap_l2ca_cfg_rsp_op *)(msg->data); 806107120Sjulian 807114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 808114878Sjulian 809107120Sjulian /* Look for the socket with the token */ 810107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 811114878Sjulian if (pcb == NULL) { 812114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 813107120Sjulian return (ENOENT); 814114878Sjulian } 815107120Sjulian 816107120Sjulian mtx_lock(&pcb->pcb_mtx); 817107120Sjulian 818107120Sjulian NG_BTSOCKET_L2CAP_INFO( 819107120Sjulian"%s: Got L2CA_ConfigRsp response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 820107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d, " \ 821107120Sjulian"cfg_state=%x\n", 822107120Sjulian __func__, msg->header.token, 823107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 824107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 825107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 826107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 827107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state, pcb->cfg_state); 828107120Sjulian 829107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 830107120Sjulian mtx_unlock(&pcb->pcb_mtx); 831114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 832114878Sjulian 833107120Sjulian return (ENOENT); 834107120Sjulian } 835107120Sjulian 836107120Sjulian /* Check the result and disconnect socket of failure */ 837107120Sjulian if (op->result != NG_L2CAP_SUCCESS) 838107120Sjulian goto disconnect; 839107120Sjulian 840107120Sjulian /* 841107120Sjulian * Now we done with remote side configuration. Configure local 842107120Sjulian * side if we have not done it yet. 843107120Sjulian */ 844107120Sjulian 845107120Sjulian pcb->cfg_state &= ~NG_BTSOCKET_L2CAP_CFG_OUT_SENT; 846107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_OUT; 847107120Sjulian 848107120Sjulian if (pcb->cfg_state == NG_BTSOCKET_L2CAP_CFG_BOTH) { 849107120Sjulian /* Configuration complete - mask socket as open */ 850107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 851107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_OPEN; 852107120Sjulian soisconnected(pcb->so); 853107120Sjulian } else { 854107120Sjulian if (!(pcb->cfg_state & NG_BTSOCKET_L2CAP_CFG_IN_SENT)) { 855107120Sjulian /* Send L2CA_Config request - incoming path */ 856107120Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb); 857107120Sjulian if (error != 0) 858107120Sjulian goto disconnect; 859107120Sjulian 860107120Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_IN_SENT; 861107120Sjulian } 862107120Sjulian } 863107120Sjulian 864107120Sjulian mtx_unlock(&pcb->pcb_mtx); 865114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 866107120Sjulian 867107120Sjulian return (error); 868107120Sjulian 869107120Sjuliandisconnect: 870107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 871107120Sjulian 872107120Sjulian /* Send disconnect with "zero" token */ 873107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 874107120Sjulian 875107120Sjulian /* ... and close the socket */ 876107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 877107120Sjulian soisdisconnected(pcb->so); 878107120Sjulian 879114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 880114878Sjulian *sop = pcb->so; 881114878Sjulian 882107120Sjulian mtx_unlock(&pcb->pcb_mtx); 883114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 884107120Sjulian 885107120Sjulian return (error); 886107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp */ 887107120Sjulian 888107120Sjulian/* 889107120Sjulian * Process L2CA_Config indicator 890107120Sjulian */ 891107120Sjulian 892107120Sjulianstatic int 893107120Sjulianng_btsocket_l2cap_process_l2ca_cfg_ind(struct ng_mesg *msg, 894114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 895107120Sjulian{ 896107120Sjulian ng_l2cap_l2ca_cfg_ind_ip *ip = NULL; 897107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 898107120Sjulian int error = 0; 899107120Sjulian 900107120Sjulian if (msg->header.arglen != sizeof(*ip)) 901107120Sjulian return (EMSGSIZE); 902107120Sjulian 903107120Sjulian ip = (ng_l2cap_l2ca_cfg_ind_ip *)(msg->data); 904107120Sjulian 905114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 906114878Sjulian 907107120Sjulian /* Check for the open socket that has given channel ID */ 908107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, ip->lcid); 909114878Sjulian if (pcb == NULL) { 910114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 911107120Sjulian return (ENOENT); 912114878Sjulian } 913107120Sjulian 914107120Sjulian mtx_lock(&pcb->pcb_mtx); 915107120Sjulian 916107120Sjulian NG_BTSOCKET_L2CAP_INFO( 917107120Sjulian"%s: Got L2CA_Config indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 918107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, state=%d, cfg_state=%x\n", 919107120Sjulian __func__, 920107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 921107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 922107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 923107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 924107120Sjulian pcb->psm, pcb->cid, pcb->state, pcb->cfg_state); 925107120Sjulian 926107120Sjulian /* XXX FIXME re-configuration on open socket */ 927107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CONFIGURING) { 928107120Sjulian mtx_unlock(&pcb->pcb_mtx); 929114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 930114878Sjulian 931107120Sjulian return (ENOENT); 932107120Sjulian } 933107120Sjulian 934107120Sjulian /* 935107120Sjulian * XXX FIXME Actually set flush and link timeout. Set QoS here if 936107120Sjulian * required. Resolve conficts (flush_timo). Note outgoing MTU (peer's 937107120Sjulian * incoming MTU) and incoming flow spec. 938107120Sjulian */ 939107120Sjulian 940107120Sjulian pcb->omtu = ip->omtu; 941107120Sjulian bcopy(&ip->iflow, &pcb->iflow, sizeof(pcb->iflow)); 942107120Sjulian pcb->flush_timo = ip->flush_timo; 943107120Sjulian 944107120Sjulian /* 945107120Sjulian * Send L2CA_Config response to our peer and check for the errors, 946107120Sjulian * if any send disconnect to close the channel. 947107120Sjulian */ 948107120Sjulian 949114878Sjulian if (!(pcb->cfg_state & NG_BTSOCKET_L2CAP_CFG_OUT_SENT)) { 950114878Sjulian error = ng_btsocket_l2cap_send_l2ca_cfg_rsp(pcb); 951114878Sjulian if (error != 0) { 952114878Sjulian ng_btsocket_l2cap_untimeout(pcb); 953107120Sjulian 954114878Sjulian pcb->so->so_error = error; 955107120Sjulian 956114878Sjulian /* Send disconnect with "zero" token */ 957114878Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 958107120Sjulian 959114878Sjulian /* ... and close the socket */ 960114878Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 961114878Sjulian soisdisconnected(pcb->so); 962107120Sjulian 963114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 964114878Sjulian *sop = pcb->so; 965114878Sjulian } else 966114878Sjulian pcb->cfg_state |= NG_BTSOCKET_L2CAP_CFG_OUT_SENT; 967107120Sjulian } 968107120Sjulian 969107120Sjulian mtx_unlock(&pcb->pcb_mtx); 970114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 971107120Sjulian 972107120Sjulian return (error); 973107120Sjulian} /* ng_btsocket_l2cap_process_l2cap_cfg_ind */ 974107120Sjulian 975107120Sjulian/* 976107120Sjulian * Process L2CA_Disconnect response 977107120Sjulian */ 978107120Sjulian 979107120Sjulianstatic int 980107120Sjulianng_btsocket_l2cap_process_l2ca_discon_rsp(struct ng_mesg *msg, 981114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 982107120Sjulian{ 983107120Sjulian ng_l2cap_l2ca_discon_op *op = NULL; 984107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 985107120Sjulian 986107120Sjulian /* Check message */ 987107120Sjulian if (msg->header.arglen != sizeof(*op)) 988107120Sjulian return (EMSGSIZE); 989107120Sjulian 990107120Sjulian op = (ng_l2cap_l2ca_discon_op *)(msg->data); 991107120Sjulian 992114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 993114878Sjulian 994107120Sjulian /* 995107120Sjulian * Socket layer must have issued L2CA_Disconnect request, so there 996107120Sjulian * must be a socket that wants to be disconnected. Use Netgraph 997107120Sjulian * message token to find it. 998107120Sjulian */ 999107120Sjulian 1000107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 1001114878Sjulian if (pcb == NULL) { 1002114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1003107120Sjulian return (0); 1004114878Sjulian } 1005107120Sjulian 1006107120Sjulian mtx_lock(&pcb->pcb_mtx); 1007107120Sjulian 1008107120Sjulian /* XXX Close socket no matter what op->result says */ 1009107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 1010107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1011107120Sjulian"%s: Got L2CA_Disconnect response, token=%d, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1012107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, state=%d\n", 1013107120Sjulian __func__, msg->header.token, 1014107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1015107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1016107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1017107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1018107120Sjulian pcb->psm, pcb->cid, op->result, pcb->state); 1019107120Sjulian 1020107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1021107120Sjulian 1022107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1023107120Sjulian soisdisconnected(pcb->so); 1024114878Sjulian 1025114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 1026114878Sjulian *sop = pcb->so; 1027107120Sjulian } 1028107120Sjulian 1029107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1030114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1031107120Sjulian 1032107120Sjulian return (0); 1033107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_discon_rsp */ 1034107120Sjulian 1035107120Sjulian/* 1036107120Sjulian * Process L2CA_Disconnect indicator 1037107120Sjulian */ 1038107120Sjulian 1039107120Sjulianstatic int 1040107120Sjulianng_btsocket_l2cap_process_l2ca_discon_ind(struct ng_mesg *msg, 1041114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 1042107120Sjulian{ 1043107120Sjulian ng_l2cap_l2ca_discon_ind_ip *ip = NULL; 1044107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1045107120Sjulian 1046107120Sjulian /* Check message */ 1047107120Sjulian if (msg->header.arglen != sizeof(*ip)) 1048107120Sjulian return (EMSGSIZE); 1049107120Sjulian 1050107120Sjulian ip = (ng_l2cap_l2ca_discon_ind_ip *)(msg->data); 1051107120Sjulian 1052114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1053114878Sjulian 1054107120Sjulian /* Look for the socket with given channel ID */ 1055107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, ip->lcid); 1056114878Sjulian if (pcb == NULL) { 1057114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1058107120Sjulian return (0); 1059114878Sjulian } 1060107120Sjulian 1061107120Sjulian /* 1062107120Sjulian * Channel has already been destroyed, so disconnect the socket 1063107120Sjulian * and be done with it. If there was any pending request we can 1064107120Sjulian * not do anything here anyway. 1065107120Sjulian */ 1066107120Sjulian 1067107120Sjulian mtx_lock(&pcb->pcb_mtx); 1068107120Sjulian 1069107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1070107120Sjulian"%s: Got L2CA_Disconnect indicator, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1071107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, state=%d\n", 1072107120Sjulian __func__, 1073107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1074107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1075107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1076107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1077107120Sjulian pcb->psm, pcb->cid, pcb->state); 1078107120Sjulian 1079107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 1080107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1081107120Sjulian 1082107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1083107120Sjulian soisdisconnected(pcb->so); 1084107120Sjulian 1085114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 1086114878Sjulian *sop = pcb->so; 1087114878Sjulian 1088107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1089114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1090107120Sjulian 1091107120Sjulian return (0); 1092107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_discon_ind */ 1093107120Sjulian 1094107120Sjulian/* 1095107120Sjulian * Process L2CA_Write response 1096107120Sjulian */ 1097107120Sjulian 1098107120Sjulianstatic int 1099107120Sjulianng_btsocket_l2cap_process_l2ca_write_rsp(struct ng_mesg *msg, 1100114878Sjulian ng_btsocket_l2cap_rtentry_p rt, struct socket **sop) 1101107120Sjulian{ 1102107120Sjulian ng_l2cap_l2ca_write_op *op = NULL; 1103107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1104107120Sjulian 1105107120Sjulian /* Check message */ 1106107120Sjulian if (msg->header.arglen != sizeof(*op)) 1107107120Sjulian return (EMSGSIZE); 1108107120Sjulian 1109107120Sjulian op = (ng_l2cap_l2ca_write_op *)(msg->data); 1110107120Sjulian 1111114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1112114878Sjulian 1113107120Sjulian /* Look for the socket with given token */ 1114107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_token(msg->header.token); 1115114878Sjulian if (pcb == NULL) { 1116114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1117107120Sjulian return (ENOENT); 1118114878Sjulian } 1119107120Sjulian 1120107120Sjulian mtx_lock(&pcb->pcb_mtx); 1121107120Sjulian 1122107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1123107120Sjulian"%s: Got L2CA_Write response, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1124107120Sjulian"dst bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, lcid=%d, result=%d, length=%d, " \ 1125107120Sjulian"state=%d\n", __func__, 1126107120Sjulian pcb->src.b[5], pcb->src.b[4], pcb->src.b[3], 1127107120Sjulian pcb->src.b[2], pcb->src.b[1], pcb->src.b[0], 1128107120Sjulian pcb->dst.b[5], pcb->dst.b[4], pcb->dst.b[3], 1129107120Sjulian pcb->dst.b[2], pcb->dst.b[1], pcb->dst.b[0], 1130107120Sjulian pcb->psm, pcb->cid, op->result, op->length, 1131107120Sjulian pcb->state); 1132107120Sjulian 1133107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 1134107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1135114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1136114878Sjulian 1137107120Sjulian return (ENOENT); 1138107120Sjulian } 1139107120Sjulian 1140107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1141107120Sjulian 1142107120Sjulian /* 1143107120Sjulian * Check if we have more data to send 1144107120Sjulian */ 1145107120Sjulian 1146107120Sjulian sbdroprecord(&pcb->so->so_snd); 1147107120Sjulian if (pcb->so->so_snd.sb_cc > 0) { 1148107120Sjulian if (ng_btsocket_l2cap_send2(pcb) == 0) 1149107120Sjulian ng_btsocket_l2cap_timeout(pcb); 1150107120Sjulian else 1151107120Sjulian sbdroprecord(&pcb->so->so_snd); /* XXX */ 1152107120Sjulian } 1153107120Sjulian 1154107120Sjulian /* 1155107120Sjulian * Now set the result, drop packet from the socket send queue and 1156107120Sjulian * ask for more (wakeup sender) 1157107120Sjulian */ 1158107120Sjulian 1159107120Sjulian pcb->so->so_error = ng_btsocket_l2cap_result2errno(op->result); 1160107120Sjulian sowwakeup(pcb->so); 1161107120Sjulian 1162107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1163114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1164107120Sjulian 1165107120Sjulian return (0); 1166107120Sjulian} /* ng_btsocket_l2cap_process_l2ca_write_rsp */ 1167107120Sjulian 1168107120Sjulian/* 1169107120Sjulian * Send L2CA_Connect request 1170107120Sjulian */ 1171107120Sjulian 1172107120Sjulianstatic int 1173107120Sjulianng_btsocket_l2cap_send_l2ca_con_req(ng_btsocket_l2cap_pcb_p pcb) 1174107120Sjulian{ 1175107120Sjulian struct ng_mesg *msg = NULL; 1176107120Sjulian ng_l2cap_l2ca_con_ip *ip = NULL; 1177107120Sjulian int error = 0; 1178107120Sjulian 1179107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1180107120Sjulian 1181107120Sjulian if (pcb->rt == NULL || 1182107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1183107120Sjulian return (ENETDOWN); 1184107120Sjulian 1185107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CON, 1186107120Sjulian sizeof(*ip), M_NOWAIT); 1187107120Sjulian if (msg == NULL) 1188107120Sjulian return (ENOMEM); 1189107120Sjulian 1190107120Sjulian msg->header.token = pcb->token; 1191107120Sjulian 1192107120Sjulian ip = (ng_l2cap_l2ca_con_ip *)(msg->data); 1193107120Sjulian bcopy(&pcb->dst, &ip->bdaddr, sizeof(ip->bdaddr)); 1194107120Sjulian ip->psm = pcb->psm; 1195107120Sjulian 1196123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1197107120Sjulian 1198107120Sjulian return (error); 1199107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_con_req */ 1200107120Sjulian 1201107120Sjulian/* 1202107120Sjulian * Send L2CA_Connect response 1203107120Sjulian */ 1204107120Sjulian 1205107120Sjulianstatic int 1206107120Sjulianng_btsocket_l2cap_send_l2ca_con_rsp_req(u_int32_t token, 1207107120Sjulian ng_btsocket_l2cap_rtentry_p rt, bdaddr_p dst, int ident, 1208107120Sjulian int lcid, int result) 1209107120Sjulian{ 1210107120Sjulian struct ng_mesg *msg = NULL; 1211107120Sjulian ng_l2cap_l2ca_con_rsp_ip *ip = NULL; 1212107120Sjulian int error = 0; 1213107120Sjulian 1214107120Sjulian if (rt == NULL || rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 1215107120Sjulian return (ENETDOWN); 1216107120Sjulian 1217107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CON_RSP, 1218107120Sjulian sizeof(*ip), M_NOWAIT); 1219107120Sjulian if (msg == NULL) 1220107120Sjulian return (ENOMEM); 1221107120Sjulian 1222107120Sjulian msg->header.token = token; 1223107120Sjulian 1224107120Sjulian ip = (ng_l2cap_l2ca_con_rsp_ip *)(msg->data); 1225107120Sjulian bcopy(dst, &ip->bdaddr, sizeof(ip->bdaddr)); 1226107120Sjulian ip->ident = ident; 1227107120Sjulian ip->lcid = lcid; 1228107120Sjulian ip->result = result; 1229107120Sjulian ip->status = 0; 1230107120Sjulian 1231123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg, rt->hook, 0); 1232107120Sjulian 1233107120Sjulian return (error); 1234107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_con_rsp_req */ 1235107120Sjulian 1236107120Sjulian/* 1237107120Sjulian * Send L2CA_Config request 1238107120Sjulian */ 1239107120Sjulian 1240107120Sjulianstatic int 1241107120Sjulianng_btsocket_l2cap_send_l2ca_cfg_req(ng_btsocket_l2cap_pcb_p pcb) 1242107120Sjulian{ 1243107120Sjulian struct ng_mesg *msg = NULL; 1244107120Sjulian ng_l2cap_l2ca_cfg_ip *ip = NULL; 1245107120Sjulian int error = 0; 1246107120Sjulian 1247107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1248107120Sjulian 1249107120Sjulian if (pcb->rt == NULL || 1250107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1251107120Sjulian return (ENETDOWN); 1252107120Sjulian 1253107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CFG, 1254107120Sjulian sizeof(*ip), M_NOWAIT); 1255107120Sjulian if (msg == NULL) 1256107120Sjulian return (ENOMEM); 1257107120Sjulian 1258107120Sjulian msg->header.token = pcb->token; 1259107120Sjulian 1260107120Sjulian ip = (ng_l2cap_l2ca_cfg_ip *)(msg->data); 1261107120Sjulian ip->lcid = pcb->cid; 1262107120Sjulian ip->imtu = pcb->imtu; 1263107120Sjulian bcopy(&pcb->oflow, &ip->oflow, sizeof(ip->oflow)); 1264107120Sjulian ip->flush_timo = pcb->flush_timo; 1265107120Sjulian ip->link_timo = pcb->link_timo; 1266107120Sjulian 1267123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1268107120Sjulian 1269107120Sjulian return (error); 1270107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_cfg_req */ 1271107120Sjulian 1272107120Sjulian/* 1273107120Sjulian * Send L2CA_Config response 1274107120Sjulian */ 1275107120Sjulian 1276107120Sjulianstatic int 1277107120Sjulianng_btsocket_l2cap_send_l2ca_cfg_rsp(ng_btsocket_l2cap_pcb_p pcb) 1278107120Sjulian{ 1279107120Sjulian struct ng_mesg *msg = NULL; 1280107120Sjulian ng_l2cap_l2ca_cfg_rsp_ip *ip = NULL; 1281107120Sjulian int error = 0; 1282107120Sjulian 1283107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1284107120Sjulian 1285107120Sjulian if (pcb->rt == NULL || 1286107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1287107120Sjulian return (ENETDOWN); 1288107120Sjulian 1289107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_CFG_RSP, 1290107120Sjulian sizeof(*ip), M_NOWAIT); 1291107120Sjulian if (msg == NULL) 1292107120Sjulian return (ENOMEM); 1293107120Sjulian 1294107120Sjulian msg->header.token = pcb->token; 1295107120Sjulian 1296107120Sjulian ip = (ng_l2cap_l2ca_cfg_rsp_ip *)(msg->data); 1297107120Sjulian ip->lcid = pcb->cid; 1298107120Sjulian ip->omtu = pcb->omtu; 1299107120Sjulian bcopy(&pcb->iflow, &ip->iflow, sizeof(ip->iflow)); 1300107120Sjulian 1301123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg, pcb->rt->hook, 0); 1302107120Sjulian 1303107120Sjulian return (error); 1304107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_cfg_rsp */ 1305107120Sjulian 1306107120Sjulian/* 1307107120Sjulian * Send L2CA_Disconnect request 1308107120Sjulian */ 1309107120Sjulian 1310107120Sjulianstatic int 1311107120Sjulianng_btsocket_l2cap_send_l2ca_discon_req(u_int32_t token, 1312107120Sjulian ng_btsocket_l2cap_pcb_p pcb) 1313107120Sjulian{ 1314107120Sjulian struct ng_mesg *msg = NULL; 1315107120Sjulian ng_l2cap_l2ca_discon_ip *ip = NULL; 1316107120Sjulian int error = 0; 1317107120Sjulian 1318107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 1319107120Sjulian 1320107120Sjulian if (pcb->rt == NULL || 1321107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) 1322107120Sjulian return (ENETDOWN); 1323107120Sjulian 1324107120Sjulian NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_DISCON, 1325107120Sjulian sizeof(*ip), M_NOWAIT); 1326107120Sjulian if (msg == NULL) 1327107120Sjulian return (ENOMEM); 1328107120Sjulian 1329107120Sjulian msg->header.token = token; 1330107120Sjulian 1331107120Sjulian ip = (ng_l2cap_l2ca_discon_ip *)(msg->data); 1332107120Sjulian ip->lcid = pcb->cid; 1333107120Sjulian 1334123812Salfred NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0); 1335107120Sjulian 1336107120Sjulian return (error); 1337107120Sjulian} /* ng_btsocket_l2cap_send_l2ca_discon_req */ 1338107120Sjulian 1339107120Sjulian/***************************************************************************** 1340107120Sjulian ***************************************************************************** 1341107120Sjulian ** Socket interface 1342107120Sjulian ***************************************************************************** 1343107120Sjulian *****************************************************************************/ 1344107120Sjulian 1345107120Sjulian/* 1346107120Sjulian * L2CAP sockets data input routine 1347107120Sjulian */ 1348107120Sjulian 1349107120Sjulianstatic void 1350107120Sjulianng_btsocket_l2cap_data_input(struct mbuf *m, hook_p hook) 1351107120Sjulian{ 1352107120Sjulian ng_l2cap_hdr_t *hdr = NULL; 1353107120Sjulian ng_l2cap_clt_hdr_t *clt_hdr = NULL; 1354107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 1355107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 1356107120Sjulian 1357107120Sjulian if (hook == NULL) { 1358107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1359107120Sjulian"%s: Invalid source hook for L2CAP data packet\n", __func__); 1360107120Sjulian goto drop; 1361107120Sjulian } 1362107120Sjulian 1363107120Sjulian rt = (ng_btsocket_l2cap_rtentry_t *) NG_HOOK_PRIVATE(hook); 1364107120Sjulian if (rt == NULL) { 1365107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1366107120Sjulian"%s: Could not find out source bdaddr for L2CAP data packet\n", __func__); 1367107120Sjulian goto drop; 1368107120Sjulian } 1369107120Sjulian 1370107120Sjulian /* Make sure we can access header */ 1371107120Sjulian if (m->m_pkthdr.len < sizeof(*hdr)) { 1372107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1373107120Sjulian"%s: L2CAP data packet too small, len=%d\n", __func__, m->m_pkthdr.len); 1374107120Sjulian goto drop; 1375107120Sjulian } 1376107120Sjulian 1377107120Sjulian if (m->m_len < sizeof(*hdr)) { 1378107120Sjulian m = m_pullup(m, sizeof(*hdr)); 1379107120Sjulian if (m == NULL) 1380107120Sjulian goto drop; 1381107120Sjulian } 1382107120Sjulian 1383107120Sjulian /* Strip L2CAP packet header and verify packet length */ 1384107120Sjulian hdr = mtod(m, ng_l2cap_hdr_t *); 1385107120Sjulian m_adj(m, sizeof(*hdr)); 1386107120Sjulian 1387107120Sjulian if (hdr->length != m->m_pkthdr.len) { 1388107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1389107120Sjulian"%s: Bad L2CAP data packet length, len=%d, length=%d\n", 1390107120Sjulian __func__, m->m_pkthdr.len, hdr->length); 1391107120Sjulian goto drop; 1392107120Sjulian } 1393107120Sjulian 1394107120Sjulian /* 1395107120Sjulian * Now process packet. Two cases: 1396107120Sjulian * 1397107120Sjulian * 1) Normal packet (cid != 2) then find connected socket and append 1398107120Sjulian * mbuf to the socket queue. Wakeup socket. 1399107120Sjulian * 1400107120Sjulian * 2) Broadcast packet (cid == 2) then find all sockets that connected 1401107120Sjulian * to the given PSM and have SO_BROADCAST bit set and append mbuf 1402107120Sjulian * to the socket queue. Wakeup socket. 1403107120Sjulian */ 1404107120Sjulian 1405107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1406114878Sjulian"%s: Received L2CAP data packet: src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1407107120Sjulian"dcid=%d, length=%d\n", 1408107120Sjulian __func__, 1409107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1410107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1411107120Sjulian hdr->dcid, hdr->length); 1412107120Sjulian 1413121054Semax if (hdr->dcid >= NG_L2CAP_FIRST_CID) { 1414114878Sjulian 1415114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1416114878Sjulian 1417107120Sjulian /* Normal packet: find connected socket */ 1418107120Sjulian pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, hdr->dcid); 1419114878Sjulian if (pcb == NULL) { 1420114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1421107120Sjulian goto drop; 1422114878Sjulian } 1423107120Sjulian 1424107120Sjulian mtx_lock(&pcb->pcb_mtx); 1425107120Sjulian 1426107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 1427107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1428107120Sjulian"%s: No connected socket found, src bdaddr=%x:%x:%x:%x:%x:%x, dcid=%d, " \ 1429107120Sjulian"state=%d\n", __func__, 1430107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1431107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1432107120Sjulian hdr->dcid, pcb->state); 1433107120Sjulian 1434107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1435114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1436107120Sjulian goto drop; 1437107120Sjulian } 1438107120Sjulian 1439107120Sjulian /* Check packet size against socket's incoming MTU */ 1440107120Sjulian if (hdr->length > pcb->imtu) { 1441107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1442107120Sjulian"%s: L2CAP data packet too big, src bdaddr=%x:%x:%x:%x:%x:%x, " \ 1443107120Sjulian"dcid=%d, length=%d, imtu=%d\n", 1444107120Sjulian __func__, 1445107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1446107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1447107120Sjulian hdr->dcid, hdr->length, pcb->imtu); 1448107120Sjulian 1449107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1450114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1451107120Sjulian goto drop; 1452107120Sjulian } 1453107120Sjulian 1454107120Sjulian /* Check if we have enough space in socket receive queue */ 1455107120Sjulian if (m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) { 1456107120Sjulian 1457107120Sjulian /* 1458107120Sjulian * This is really bad. Receive queue on socket does 1459107120Sjulian * not have enough space for the packet. We do not 1460107120Sjulian * have any other choice but drop the packet. L2CAP 1461107120Sjulian * does not provide any flow control. 1462107120Sjulian */ 1463107120Sjulian 1464107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1465107120Sjulian"%s: Not enough space in socket receive queue. Dropping L2CAP data packet, " \ 1466107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, dcid=%d, len=%d, space=%ld\n", 1467107120Sjulian __func__, 1468107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1469107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1470107120Sjulian hdr->dcid, m->m_pkthdr.len, 1471107120Sjulian sbspace(&pcb->so->so_rcv)); 1472107120Sjulian 1473107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1474114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1475107120Sjulian goto drop; 1476107120Sjulian } 1477107120Sjulian 1478107120Sjulian /* Append packet to the socket receive queue and wakeup */ 1479107120Sjulian sbappendrecord(&pcb->so->so_rcv, m); 1480107120Sjulian m = NULL; 1481107120Sjulian 1482107120Sjulian sorwakeup(pcb->so); 1483114878Sjulian 1484107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1485114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1486114878Sjulian } else if (hdr->dcid == NG_L2CAP_CLT_CID) { 1487107120Sjulian /* Broadcast packet: give packet to all sockets */ 1488107120Sjulian 1489107120Sjulian /* Check packet size against connectionless MTU */ 1490107120Sjulian if (hdr->length > NG_L2CAP_MTU_DEFAULT) { 1491107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1492107120Sjulian"%s: Connectionless L2CAP data packet too big, " \ 1493107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, length=%d\n", 1494107120Sjulian __func__, 1495107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1496107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1497107120Sjulian hdr->length); 1498107120Sjulian goto drop; 1499107120Sjulian } 1500107120Sjulian 1501107120Sjulian /* Make sure we can access connectionless header */ 1502107120Sjulian if (m->m_pkthdr.len < sizeof(*clt_hdr)) { 1503107120Sjulian NG_BTSOCKET_L2CAP_ERR( 1504107120Sjulian"%s: Can not get L2CAP connectionless packet header, " \ 1505107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, length=%d\n", 1506107120Sjulian __func__, 1507107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1508107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1509107120Sjulian hdr->length); 1510107120Sjulian goto drop; 1511107120Sjulian } 1512107120Sjulian 1513107120Sjulian if (m->m_len < sizeof(*clt_hdr)) { 1514107120Sjulian m = m_pullup(m, sizeof(*clt_hdr)); 1515107120Sjulian if (m == NULL) 1516107120Sjulian goto drop; 1517107120Sjulian } 1518107120Sjulian 1519107120Sjulian /* Strip connectionless header and deliver packet */ 1520107120Sjulian clt_hdr = mtod(m, ng_l2cap_clt_hdr_t *); 1521107120Sjulian m_adj(m, sizeof(*clt_hdr)); 1522107120Sjulian 1523107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1524107120Sjulian"%s: Got L2CAP connectionless data packet, " \ 1525107120Sjulian"src bdaddr=%x:%x:%x:%x:%x:%x, psm=%d, length=%d\n", 1526107120Sjulian __func__, 1527107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1528107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0], 1529107120Sjulian clt_hdr->psm, hdr->length); 1530107120Sjulian 1531107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1532107120Sjulian 1533107120Sjulian LIST_FOREACH(pcb, &ng_btsocket_l2cap_sockets, next) { 1534107120Sjulian struct mbuf *copy = NULL; 1535107120Sjulian 1536107120Sjulian mtx_lock(&pcb->pcb_mtx); 1537107120Sjulian 1538107120Sjulian if (bcmp(&rt->src, &pcb->src, sizeof(pcb->src)) != 0 || 1539107120Sjulian pcb->psm != clt_hdr->psm || 1540107120Sjulian pcb->state != NG_BTSOCKET_L2CAP_OPEN || 1541107120Sjulian (pcb->so->so_options & SO_BROADCAST) == 0 || 1542107120Sjulian m->m_pkthdr.len > sbspace(&pcb->so->so_rcv)) 1543107120Sjulian goto next; 1544107120Sjulian 1545107120Sjulian /* 1546107120Sjulian * Create a copy of the packet and append it to the 1547107120Sjulian * socket's queue. If m_dup() failed - no big deal 1548107120Sjulian * it is a broadcast traffic after all 1549107120Sjulian */ 1550107120Sjulian 1551111119Simp copy = m_dup(m, M_DONTWAIT); 1552107120Sjulian if (copy != NULL) { 1553107120Sjulian sbappendrecord(&pcb->so->so_rcv, copy); 1554107120Sjulian sorwakeup(pcb->so); 1555107120Sjulian } 1556107120Sjuliannext: 1557107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1558107120Sjulian } 1559114878Sjulian 1560107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1561107120Sjulian } 1562107120Sjuliandrop: 1563107120Sjulian NG_FREE_M(m); /* checks for m != NULL */ 1564107120Sjulian} /* ng_btsocket_l2cap_data_input */ 1565107120Sjulian 1566107120Sjulian/* 1567107120Sjulian * L2CAP sockets default message input routine 1568107120Sjulian */ 1569107120Sjulian 1570107120Sjulianstatic void 1571107120Sjulianng_btsocket_l2cap_default_msg_input(struct ng_mesg *msg, hook_p hook) 1572107120Sjulian{ 1573107120Sjulian switch (msg->header.cmd) { 1574107120Sjulian case NGM_L2CAP_NODE_HOOK_INFO: { 1575107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 1576107120Sjulian 1577107120Sjulian if (hook == NULL || msg->header.arglen != sizeof(bdaddr_t)) 1578107120Sjulian break; 1579107120Sjulian 1580107120Sjulian if (bcmp(msg->data, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 1581107120Sjulian break; 1582107120Sjulian 1583114878Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 1584114878Sjulian 1585107120Sjulian rt = (ng_btsocket_l2cap_rtentry_t *) NG_HOOK_PRIVATE(hook); 1586107120Sjulian if (rt == NULL) { 1587107120Sjulian MALLOC(rt, ng_btsocket_l2cap_rtentry_p, sizeof(*rt), 1588107120Sjulian M_NETGRAPH_BTSOCKET_L2CAP, M_NOWAIT|M_ZERO); 1589114878Sjulian if (rt == NULL) { 1590114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1591107120Sjulian break; 1592114878Sjulian } 1593107120Sjulian 1594107120Sjulian LIST_INSERT_HEAD(&ng_btsocket_l2cap_rt, rt, next); 1595107120Sjulian 1596107120Sjulian NG_HOOK_SET_PRIVATE(hook, rt); 1597107120Sjulian } 1598114878Sjulian 1599107120Sjulian bcopy(msg->data, &rt->src, sizeof(rt->src)); 1600107120Sjulian rt->hook = hook; 1601107120Sjulian 1602114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1603114878Sjulian 1604107120Sjulian NG_BTSOCKET_L2CAP_INFO( 1605107120Sjulian"%s: Updating hook \"%s\", src bdaddr=%x:%x:%x:%x:%x:%x\n", 1606107120Sjulian __func__, NG_HOOK_NAME(hook), 1607107120Sjulian rt->src.b[5], rt->src.b[4], rt->src.b[3], 1608107120Sjulian rt->src.b[2], rt->src.b[1], rt->src.b[0]); 1609107120Sjulian } break; 1610107120Sjulian 1611107120Sjulian default: 1612107120Sjulian NG_BTSOCKET_L2CAP_WARN( 1613107120Sjulian"%s: Unknown message, cmd=%d\n", __func__, msg->header.cmd); 1614107120Sjulian break; 1615107120Sjulian } 1616107120Sjulian 1617107120Sjulian NG_FREE_MSG(msg); /* Checks for msg != NULL */ 1618107120Sjulian} /* ng_btsocket_l2cap_default_msg_input */ 1619107120Sjulian 1620107120Sjulian/* 1621107120Sjulian * L2CAP sockets L2CA message input routine 1622107120Sjulian */ 1623107120Sjulian 1624107120Sjulianstatic void 1625107120Sjulianng_btsocket_l2cap_l2ca_msg_input(struct ng_mesg *msg, hook_p hook) 1626107120Sjulian{ 1627114878Sjulian ng_btsocket_l2cap_rtentry_p rt = NULL; 1628114878Sjulian struct socket *so = NULL; 1629107120Sjulian 1630107120Sjulian if (hook == NULL) { 1631107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1632107120Sjulian"%s: Invalid source hook for L2CA message\n", __func__); 1633107120Sjulian goto drop; 1634107120Sjulian } 1635107120Sjulian 1636107120Sjulian rt = (ng_btsocket_l2cap_rtentry_p) NG_HOOK_PRIVATE(hook); 1637107120Sjulian if (rt == NULL) { 1638107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1639107120Sjulian"%s: Could not find out source bdaddr for L2CA message\n", __func__); 1640107120Sjulian goto drop; 1641107120Sjulian } 1642107120Sjulian 1643107120Sjulian switch (msg->header.cmd) { 1644107120Sjulian case NGM_L2CAP_L2CA_CON: /* L2CA_Connect response */ 1645114878Sjulian ng_btsocket_l2cap_process_l2ca_con_req_rsp(msg, rt, &so); 1646107120Sjulian break; 1647107120Sjulian 1648107120Sjulian case NGM_L2CAP_L2CA_CON_RSP: /* L2CA_ConnectRsp response */ 1649114878Sjulian ng_btsocket_l2cap_process_l2ca_con_rsp_rsp(msg, rt, &so); 1650107120Sjulian break; 1651107120Sjulian 1652107120Sjulian case NGM_L2CAP_L2CA_CON_IND: /* L2CA_Connect indicator */ 1653114878Sjulian ng_btsocket_l2cap_process_l2ca_con_ind(msg, rt, &so); 1654107120Sjulian break; 1655107120Sjulian 1656107120Sjulian case NGM_L2CAP_L2CA_CFG: /* L2CA_Config response */ 1657114878Sjulian ng_btsocket_l2cap_process_l2ca_cfg_req_rsp(msg, rt, &so); 1658107120Sjulian break; 1659107120Sjulian 1660107120Sjulian case NGM_L2CAP_L2CA_CFG_RSP: /* L2CA_ConfigRsp response */ 1661114878Sjulian ng_btsocket_l2cap_process_l2ca_cfg_rsp_rsp(msg, rt, &so); 1662107120Sjulian break; 1663107120Sjulian 1664107120Sjulian case NGM_L2CAP_L2CA_CFG_IND: /* L2CA_Config indicator */ 1665114878Sjulian ng_btsocket_l2cap_process_l2ca_cfg_ind(msg, rt, &so); 1666107120Sjulian break; 1667107120Sjulian 1668107120Sjulian case NGM_L2CAP_L2CA_DISCON: /* L2CA_Disconnect response */ 1669114878Sjulian ng_btsocket_l2cap_process_l2ca_discon_rsp(msg, rt, &so); 1670107120Sjulian break; 1671107120Sjulian 1672107120Sjulian case NGM_L2CAP_L2CA_DISCON_IND: /* L2CA_Disconnect indicator */ 1673114878Sjulian ng_btsocket_l2cap_process_l2ca_discon_ind(msg, rt, &so); 1674107120Sjulian break; 1675107120Sjulian 1676107120Sjulian case NGM_L2CAP_L2CA_WRITE: /* L2CA_Write response */ 1677114878Sjulian ng_btsocket_l2cap_process_l2ca_write_rsp(msg, rt, &so); 1678107120Sjulian break; 1679107120Sjulian 1680107120Sjulian /* XXX FIXME add other L2CA messages */ 1681107120Sjulian 1682107120Sjulian default: 1683107120Sjulian NG_BTSOCKET_L2CAP_WARN( 1684107120Sjulian"%s: Unknown L2CA message, cmd=%d\n", __func__, msg->header.cmd); 1685107120Sjulian break; 1686107120Sjulian } 1687107120Sjuliandrop: 1688107120Sjulian NG_FREE_MSG(msg); 1689114878Sjulian 1690114878Sjulian if (so != NULL) 1691114878Sjulian ng_btsocket_l2cap_detach(so); 1692107120Sjulian} /* ng_btsocket_l2cap_l2ca_msg_input */ 1693107120Sjulian 1694107120Sjulian/* 1695107120Sjulian * L2CAP sockets input routine 1696107120Sjulian */ 1697107120Sjulian 1698107120Sjulianstatic void 1699107120Sjulianng_btsocket_l2cap_input(void *context, int pending) 1700107120Sjulian{ 1701107120Sjulian item_p item = NULL; 1702107120Sjulian hook_p hook = NULL; 1703107120Sjulian 1704107120Sjulian for (;;) { 1705107120Sjulian mtx_lock(&ng_btsocket_l2cap_queue_mtx); 1706107120Sjulian NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_l2cap_queue, item); 1707107120Sjulian mtx_unlock(&ng_btsocket_l2cap_queue_mtx); 1708107120Sjulian 1709107120Sjulian if (item == NULL) 1710107120Sjulian break; 1711107120Sjulian 1712107120Sjulian NGI_GET_HOOK(item, hook); 1713107120Sjulian if (hook != NULL && NG_HOOK_NOT_VALID(hook)) 1714107120Sjulian goto drop; 1715107120Sjulian 1716107120Sjulian switch(item->el_flags & NGQF_TYPE) { 1717107120Sjulian case NGQF_DATA: { 1718107120Sjulian struct mbuf *m = NULL; 1719107120Sjulian 1720107120Sjulian NGI_GET_M(item, m); 1721107120Sjulian ng_btsocket_l2cap_data_input(m, hook); 1722107120Sjulian } break; 1723107120Sjulian 1724107120Sjulian case NGQF_MESG: { 1725107120Sjulian struct ng_mesg *msg = NULL; 1726107120Sjulian 1727107120Sjulian NGI_GET_MSG(item, msg); 1728107120Sjulian 1729107120Sjulian switch (msg->header.cmd) { 1730107120Sjulian case NGM_L2CAP_L2CA_CON: 1731107120Sjulian case NGM_L2CAP_L2CA_CON_RSP: 1732107120Sjulian case NGM_L2CAP_L2CA_CON_IND: 1733107120Sjulian case NGM_L2CAP_L2CA_CFG: 1734107120Sjulian case NGM_L2CAP_L2CA_CFG_RSP: 1735107120Sjulian case NGM_L2CAP_L2CA_CFG_IND: 1736107120Sjulian case NGM_L2CAP_L2CA_DISCON: 1737107120Sjulian case NGM_L2CAP_L2CA_DISCON_IND: 1738107120Sjulian case NGM_L2CAP_L2CA_WRITE: 1739107120Sjulian /* XXX FIXME add other L2CA messages */ 1740107120Sjulian ng_btsocket_l2cap_l2ca_msg_input(msg, hook); 1741107120Sjulian break; 1742107120Sjulian 1743107120Sjulian default: 1744107120Sjulian ng_btsocket_l2cap_default_msg_input(msg, hook); 1745107120Sjulian break; 1746107120Sjulian } 1747107120Sjulian } break; 1748107120Sjulian 1749107120Sjulian default: 1750107120Sjulian KASSERT(0, 1751107120Sjulian("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); 1752107120Sjulian break; 1753107120Sjulian } 1754107120Sjuliandrop: 1755107120Sjulian if (hook != NULL) 1756107120Sjulian NG_HOOK_UNREF(hook); 1757107120Sjulian 1758107120Sjulian NG_FREE_ITEM(item); 1759107120Sjulian } 1760107120Sjulian} /* ng_btsocket_l2cap_input */ 1761107120Sjulian 1762107120Sjulian/* 1763107120Sjulian * Route cleanup task. Gets scheduled when hook is disconnected. Here we 1764107120Sjulian * will find all sockets that use "invalid" hook and disconnect them. 1765107120Sjulian */ 1766107120Sjulian 1767107120Sjulianstatic void 1768107120Sjulianng_btsocket_l2cap_rtclean(void *context, int pending) 1769107120Sjulian{ 1770114878Sjulian ng_btsocket_l2cap_pcb_p pcb = NULL, pcb_next = NULL; 1771107120Sjulian ng_btsocket_l2cap_rtentry_p rt = NULL; 1772107120Sjulian 1773107120Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 1774107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 1775107120Sjulian 1776107120Sjulian /* 1777107120Sjulian * First disconnect all sockets that use "invalid" hook 1778107120Sjulian */ 1779107120Sjulian 1780114878Sjulian for (pcb = LIST_FIRST(&ng_btsocket_l2cap_sockets); pcb != NULL; ) { 1781107120Sjulian mtx_lock(&pcb->pcb_mtx); 1782114878Sjulian pcb_next = LIST_NEXT(pcb, next); 1783107120Sjulian 1784107120Sjulian if (pcb->rt != NULL && 1785107120Sjulian pcb->rt->hook != NULL && NG_HOOK_NOT_VALID(pcb->rt->hook)) { 1786107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 1787107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 1788107120Sjulian 1789107120Sjulian pcb->so->so_error = ENETDOWN; 1790107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1791107120Sjulian soisdisconnected(pcb->so); 1792107120Sjulian 1793107120Sjulian pcb->token = 0; 1794114878Sjulian pcb->cid = 0; 1795107120Sjulian pcb->rt = NULL; 1796114878Sjulian 1797114878Sjulian if (pcb->so->so_state & SS_NOFDREF) { 1798114878Sjulian struct socket *so = pcb->so; 1799114878Sjulian 1800114878Sjulian LIST_REMOVE(pcb, next); 1801114878Sjulian 1802114878Sjulian mtx_unlock(&pcb->pcb_mtx); 1803114878Sjulian 1804114878Sjulian mtx_destroy(&pcb->pcb_mtx); 1805114878Sjulian bzero(pcb, sizeof(*pcb)); 1806114878Sjulian FREE(pcb, M_NETGRAPH_BTSOCKET_L2CAP); 1807114878Sjulian 1808114878Sjulian soisdisconnected(so); 1809136682Srwatson ACCEPT_LOCK(); 1810130387Srwatson SOCK_LOCK(so); 1811114878Sjulian so->so_pcb = NULL; 1812114878Sjulian sotryfree(so); 1813114878Sjulian 1814114878Sjulian goto next; 1815114878Sjulian } 1816107120Sjulian } 1817107120Sjulian 1818107120Sjulian mtx_unlock(&pcb->pcb_mtx); 1819114878Sjuliannext: 1820114878Sjulian pcb = pcb_next; 1821107120Sjulian } 1822107120Sjulian 1823107120Sjulian /* 1824107120Sjulian * Now cleanup routing table 1825107120Sjulian */ 1826107120Sjulian 1827114878Sjulian for (rt = LIST_FIRST(&ng_btsocket_l2cap_rt); rt != NULL; ) { 1828107120Sjulian ng_btsocket_l2cap_rtentry_p rt_next = LIST_NEXT(rt, next); 1829107120Sjulian 1830107120Sjulian if (rt->hook != NULL && NG_HOOK_NOT_VALID(rt->hook)) { 1831107120Sjulian LIST_REMOVE(rt, next); 1832107120Sjulian 1833107120Sjulian NG_HOOK_SET_PRIVATE(rt->hook, NULL); 1834107120Sjulian NG_HOOK_UNREF(rt->hook); /* Remove extra reference */ 1835107120Sjulian 1836107120Sjulian bzero(rt, sizeof(*rt)); 1837107120Sjulian FREE(rt, M_NETGRAPH_BTSOCKET_L2CAP); 1838107120Sjulian } 1839107120Sjulian 1840107120Sjulian rt = rt_next; 1841107120Sjulian } 1842107120Sjulian 1843107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 1844107120Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 1845107120Sjulian} /* ng_btsocket_l2cap_rtclean */ 1846107120Sjulian 1847107120Sjulian/* 1848107120Sjulian * Initialize everything 1849107120Sjulian */ 1850107120Sjulian 1851107120Sjulianvoid 1852107120Sjulianng_btsocket_l2cap_init(void) 1853107120Sjulian{ 1854107120Sjulian int error = 0; 1855107120Sjulian 1856107120Sjulian ng_btsocket_l2cap_node = NULL; 1857107120Sjulian ng_btsocket_l2cap_debug_level = NG_BTSOCKET_WARN_LEVEL; 1858107120Sjulian 1859107120Sjulian /* Register Netgraph node type */ 1860107120Sjulian error = ng_newtype(&typestruct); 1861107120Sjulian if (error != 0) { 1862107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1863107120Sjulian"%s: Could not register Netgraph node type, error=%d\n", __func__, error); 1864107120Sjulian 1865107120Sjulian return; 1866107120Sjulian } 1867107120Sjulian 1868107120Sjulian /* Create Netgrapg node */ 1869107120Sjulian error = ng_make_node_common(&typestruct, &ng_btsocket_l2cap_node); 1870107120Sjulian if (error != 0) { 1871107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1872107120Sjulian"%s: Could not create Netgraph node, error=%d\n", __func__, error); 1873107120Sjulian 1874107120Sjulian ng_btsocket_l2cap_node = NULL; 1875107120Sjulian 1876107120Sjulian return; 1877107120Sjulian } 1878107120Sjulian 1879107120Sjulian error = ng_name_node(ng_btsocket_l2cap_node, 1880107120Sjulian NG_BTSOCKET_L2CAP_NODE_TYPE); 1881107120Sjulian if (error != 0) { 1882107120Sjulian NG_BTSOCKET_L2CAP_ALERT( 1883107120Sjulian"%s: Could not name Netgraph node, error=%d\n", __func__, error); 1884107120Sjulian 1885107120Sjulian NG_NODE_UNREF(ng_btsocket_l2cap_node); 1886107120Sjulian ng_btsocket_l2cap_node = NULL; 1887107120Sjulian 1888107120Sjulian return; 1889107120Sjulian } 1890107120Sjulian 1891107120Sjulian /* Create input queue */ 1892107120Sjulian NG_BT_ITEMQ_INIT(&ng_btsocket_l2cap_queue, ifqmaxlen); 1893107120Sjulian mtx_init(&ng_btsocket_l2cap_queue_mtx, 1894107120Sjulian "btsocks_l2cap_queue_mtx", NULL, MTX_DEF); 1895107120Sjulian TASK_INIT(&ng_btsocket_l2cap_queue_task, 0, 1896107120Sjulian ng_btsocket_l2cap_input, NULL); 1897107120Sjulian 1898107120Sjulian /* Create list of sockets */ 1899107120Sjulian LIST_INIT(&ng_btsocket_l2cap_sockets); 1900107120Sjulian mtx_init(&ng_btsocket_l2cap_sockets_mtx, 1901107120Sjulian "btsocks_l2cap_sockets_mtx", NULL, MTX_DEF); 1902107120Sjulian 1903107120Sjulian /* Routing table */ 1904107120Sjulian LIST_INIT(&ng_btsocket_l2cap_rt); 1905107120Sjulian mtx_init(&ng_btsocket_l2cap_rt_mtx, 1906107120Sjulian "btsocks_l2cap_rt_mtx", NULL, MTX_DEF); 1907107120Sjulian TASK_INIT(&ng_btsocket_l2cap_rt_task, 0, 1908107120Sjulian ng_btsocket_l2cap_rtclean, NULL); 1909107120Sjulian} /* ng_btsocket_l2cap_init */ 1910107120Sjulian 1911107120Sjulian/* 1912107120Sjulian * Abort connection on socket 1913107120Sjulian */ 1914107120Sjulian 1915157366Srwatsonvoid 1916107120Sjulianng_btsocket_l2cap_abort(struct socket *so) 1917107120Sjulian{ 1918107120Sjulian so->so_error = ECONNABORTED; 1919107120Sjulian 1920160549Srwatson (void)ng_btsocket_l2cap_disconnect(so); 1921107120Sjulian} /* ng_btsocket_l2cap_abort */ 1922107120Sjulian 1923160549Srwatsonvoid 1924160549Srwatsonng_btsocket_l2cap_close(struct socket *so) 1925160549Srwatson{ 1926160549Srwatson 1927160549Srwatson (void)ng_btsocket_l2cap_disconnect(so); 1928160549Srwatson} /* ng_btsocket_l2cap_close */ 1929160549Srwatson 1930107120Sjulian/* 1931107120Sjulian * Accept connection on socket. Nothing to do here, socket must be connected 1932107120Sjulian * and ready, so just return peer address and be done with it. 1933107120Sjulian */ 1934107120Sjulian 1935107120Sjulianint 1936107120Sjulianng_btsocket_l2cap_accept(struct socket *so, struct sockaddr **nam) 1937107120Sjulian{ 1938107120Sjulian if (ng_btsocket_l2cap_node == NULL) 1939107120Sjulian return (EINVAL); 1940107120Sjulian 1941107120Sjulian return (ng_btsocket_l2cap_peeraddr(so, nam)); 1942107120Sjulian} /* ng_btsocket_l2cap_accept */ 1943107120Sjulian 1944107120Sjulian/* 1945107120Sjulian * Create and attach new socket 1946107120Sjulian */ 1947107120Sjulian 1948107120Sjulianint 1949107120Sjulianng_btsocket_l2cap_attach(struct socket *so, int proto, struct thread *td) 1950107120Sjulian{ 1951114878Sjulian static u_int32_t token = 0; 1952107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 1953107120Sjulian int error; 1954107120Sjulian 1955107120Sjulian /* Check socket and protocol */ 1956107120Sjulian if (ng_btsocket_l2cap_node == NULL) 1957107120Sjulian return (EPROTONOSUPPORT); 1958107120Sjulian if (so->so_type != SOCK_SEQPACKET) 1959107120Sjulian return (ESOCKTNOSUPPORT); 1960107120Sjulian 1961107120Sjulian#if 0 /* XXX sonewconn() calls "pru_attach" with proto == 0 */ 1962107120Sjulian if (proto != 0) 1963107120Sjulian if (proto != BLUETOOTH_PROTO_L2CAP) 1964107120Sjulian return (EPROTONOSUPPORT); 1965107120Sjulian#endif /* XXX */ 1966107120Sjulian 1967107120Sjulian if (pcb != NULL) 1968107120Sjulian return (EISCONN); 1969107120Sjulian 1970107120Sjulian /* Reserve send and receive space if it is not reserved yet */ 1971107120Sjulian if ((so->so_snd.sb_hiwat == 0) || (so->so_rcv.sb_hiwat == 0)) { 1972107120Sjulian error = soreserve(so, NG_BTSOCKET_L2CAP_SENDSPACE, 1973107120Sjulian NG_BTSOCKET_L2CAP_RECVSPACE); 1974107120Sjulian if (error != 0) 1975107120Sjulian return (error); 1976107120Sjulian } 1977107120Sjulian 1978107120Sjulian /* Allocate the PCB */ 1979107120Sjulian MALLOC(pcb, ng_btsocket_l2cap_pcb_p, sizeof(*pcb), 1980107120Sjulian M_NETGRAPH_BTSOCKET_L2CAP, M_NOWAIT | M_ZERO); 1981107120Sjulian if (pcb == NULL) 1982107120Sjulian return (ENOMEM); 1983107120Sjulian 1984107120Sjulian /* Link the PCB and the socket */ 1985107120Sjulian so->so_pcb = (caddr_t) pcb; 1986107120Sjulian pcb->so = so; 1987107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 1988107120Sjulian 1989107120Sjulian /* Initialize PCB */ 1990107120Sjulian pcb->imtu = pcb->omtu = NG_L2CAP_MTU_DEFAULT; 1991107120Sjulian 1992107120Sjulian /* Default flow */ 1993107120Sjulian pcb->iflow.flags = 0x0; 1994107120Sjulian pcb->iflow.service_type = NG_HCI_SERVICE_TYPE_BEST_EFFORT; 1995107120Sjulian pcb->iflow.token_rate = 0xffffffff; /* maximum */ 1996107120Sjulian pcb->iflow.token_bucket_size = 0xffffffff; /* maximum */ 1997107120Sjulian pcb->iflow.peak_bandwidth = 0x00000000; /* maximum */ 1998107120Sjulian pcb->iflow.latency = 0xffffffff; /* don't care */ 1999107120Sjulian pcb->iflow.delay_variation = 0xffffffff; /* don't care */ 2000107120Sjulian 2001107120Sjulian bcopy(&pcb->iflow, &pcb->oflow, sizeof(pcb->oflow)); 2002107120Sjulian 2003107120Sjulian pcb->flush_timo = NG_L2CAP_FLUSH_TIMO_DEFAULT; 2004107120Sjulian pcb->link_timo = NG_L2CAP_LINK_TIMO_DEFAULT; 2005107120Sjulian 2006107120Sjulian callout_handle_init(&pcb->timo); 2007107120Sjulian 2008114878Sjulian /* 2009114878Sjulian * XXX Mark PCB mutex as DUPOK to prevent "duplicated lock of 2010114878Sjulian * the same type" message. When accepting new L2CAP connection 2011114878Sjulian * ng_btsocket_l2cap_process_l2ca_con_ind() holds both PCB mutexes 2012114878Sjulian * for "old" (accepting) PCB and "new" (created) PCB. 2013114878Sjulian */ 2014114878Sjulian 2015114878Sjulian mtx_init(&pcb->pcb_mtx, "btsocks_l2cap_pcb_mtx", NULL, 2016114878Sjulian MTX_DEF|MTX_DUPOK); 2017114878Sjulian 2018114878Sjulian /* 2019114878Sjulian * Add the PCB to the list 2020114878Sjulian * 2021114878Sjulian * XXX FIXME VERY IMPORTANT! 2022114878Sjulian * 2023114878Sjulian * This is totally FUBAR. We could get here in two cases: 2024114878Sjulian * 2025114878Sjulian * 1) When user calls socket() 2026114878Sjulian * 2) When we need to accept new incomming connection and call 2027114878Sjulian * sonewconn() 2028114878Sjulian * 2029114878Sjulian * In the first case we must aquire ng_btsocket_l2cap_sockets_mtx. 2030114878Sjulian * In the second case we hold ng_btsocket_l2cap_sockets_mtx already. 2031114878Sjulian * So we now need to distinguish between these cases. From reading 2032114878Sjulian * /sys/kern/uipc_socket2.c we can find out that sonewconn() calls 2033114878Sjulian * pru_attach with proto == 0 and td == NULL. For now use this fact 2034114878Sjulian * to figure out if we were called from socket() or from sonewconn(). 2035114878Sjulian */ 2036114878Sjulian 2037114878Sjulian if (td != NULL) 2038114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2039114878Sjulian else 2040114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2041114878Sjulian 2042114878Sjulian /* Set PCB token. Use ng_btsocket_l2cap_sockets_mtx for protection */ 2043114878Sjulian if (++ token == 0) 2044114878Sjulian token ++; 2045114878Sjulian 2046114878Sjulian pcb->token = token; 2047114878Sjulian 2048107120Sjulian LIST_INSERT_HEAD(&ng_btsocket_l2cap_sockets, pcb, next); 2049107120Sjulian 2050114878Sjulian if (td != NULL) 2051114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2052114878Sjulian 2053107120Sjulian return (0); 2054107120Sjulian} /* ng_btsocket_l2cap_attach */ 2055107120Sjulian 2056107120Sjulian/* 2057107120Sjulian * Bind socket 2058107120Sjulian */ 2059107120Sjulian 2060107120Sjulianint 2061107120Sjulianng_btsocket_l2cap_bind(struct socket *so, struct sockaddr *nam, 2062107120Sjulian struct thread *td) 2063107120Sjulian{ 2064107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = NULL; 2065107120Sjulian struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam; 2066107120Sjulian int psm, error = 0; 2067107120Sjulian 2068107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2069107120Sjulian return (EINVAL); 2070107120Sjulian 2071107120Sjulian /* Verify address */ 2072107120Sjulian if (sa == NULL) 2073107120Sjulian return (EINVAL); 2074107120Sjulian if (sa->l2cap_family != AF_BLUETOOTH) 2075107120Sjulian return (EAFNOSUPPORT); 2076107120Sjulian if (sa->l2cap_len != sizeof(*sa)) 2077107120Sjulian return (EINVAL); 2078107120Sjulian 2079107120Sjulian psm = le16toh(sa->l2cap_psm); 2080107120Sjulian 2081107120Sjulian /* 2082107120Sjulian * Check if other socket has this address already (look for exact 2083107120Sjulian * match PSM and bdaddr) and assign socket address if it's available. 2084107120Sjulian * 2085107120Sjulian * Note: socket can be bound to ANY PSM (zero) thus allowing several 2086107120Sjulian * channels with the same PSM between the same pair of BD_ADDR'es. 2087107120Sjulian */ 2088107120Sjulian 2089107120Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2090107120Sjulian 2091107120Sjulian LIST_FOREACH(pcb, &ng_btsocket_l2cap_sockets, next) 2092107120Sjulian if (psm != 0 && psm == pcb->psm && 2093107120Sjulian bcmp(&pcb->src, &sa->l2cap_bdaddr, sizeof(bdaddr_t)) == 0) 2094107120Sjulian break; 2095107120Sjulian 2096107120Sjulian if (pcb == NULL) { 2097107120Sjulian /* Set socket address */ 2098107120Sjulian pcb = so2l2cap_pcb(so); 2099107120Sjulian if (pcb != NULL) { 2100107120Sjulian bcopy(&sa->l2cap_bdaddr, &pcb->src, sizeof(pcb->src)); 2101107120Sjulian pcb->psm = psm; 2102107120Sjulian } else 2103107120Sjulian error = EINVAL; 2104107120Sjulian } else 2105107120Sjulian error = EADDRINUSE; 2106107120Sjulian 2107107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2108107120Sjulian 2109107120Sjulian return (error); 2110107120Sjulian} /* ng_btsocket_l2cap_bind */ 2111107120Sjulian 2112107120Sjulian/* 2113107120Sjulian * Connect socket 2114107120Sjulian */ 2115107120Sjulian 2116107120Sjulianint 2117107120Sjulianng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam, 2118107120Sjulian struct thread *td) 2119107120Sjulian{ 2120107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = so2l2cap_pcb(so); 2121107120Sjulian struct sockaddr_l2cap *sa = (struct sockaddr_l2cap *) nam; 2122107120Sjulian ng_btsocket_l2cap_rtentry_t *rt = NULL; 2123107120Sjulian int have_src, error = 0; 2124107120Sjulian 2125107120Sjulian /* Check socket */ 2126107120Sjulian if (pcb == NULL) 2127107120Sjulian return (EINVAL); 2128107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2129107120Sjulian return (EINVAL); 2130107120Sjulian if (pcb->state == NG_BTSOCKET_L2CAP_CONNECTING) 2131107120Sjulian return (EINPROGRESS); 2132107120Sjulian 2133107120Sjulian /* Verify address */ 2134107120Sjulian if (sa == NULL) 2135107120Sjulian return (EINVAL); 2136107120Sjulian if (sa->l2cap_family != AF_BLUETOOTH) 2137107120Sjulian return (EAFNOSUPPORT); 2138107120Sjulian if (sa->l2cap_len != sizeof(*sa)) 2139107120Sjulian return (EINVAL); 2140107120Sjulian if (sa->l2cap_psm == 0 || 2141107120Sjulian bcmp(&sa->l2cap_bdaddr, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 2142107120Sjulian return (EDESTADDRREQ); 2143107120Sjulian if (pcb->psm != 0 && pcb->psm != le16toh(sa->l2cap_psm)) 2144107120Sjulian return (EINVAL); 2145107120Sjulian 2146107120Sjulian /* 2147107120Sjulian * Routing. Socket should be bound to some source address. The source 2148107120Sjulian * address can be ANY. Destination address must be set and it must not 2149107120Sjulian * be ANY. If source address is ANY then find first rtentry that has 2150107120Sjulian * src != dst. 2151107120Sjulian */ 2152107120Sjulian 2153114878Sjulian mtx_lock(&ng_btsocket_l2cap_rt_mtx); 2154114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2155114878Sjulian mtx_lock(&pcb->pcb_mtx); 2156114878Sjulian 2157114878Sjulian /* Send destination address and PSM */ 2158114878Sjulian bcopy(&sa->l2cap_bdaddr, &pcb->dst, sizeof(pcb->dst)); 2159114878Sjulian pcb->psm = le16toh(sa->l2cap_psm); 2160114878Sjulian 2161107120Sjulian pcb->rt = NULL; 2162107120Sjulian have_src = bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src)); 2163107120Sjulian 2164107120Sjulian LIST_FOREACH(rt, &ng_btsocket_l2cap_rt, next) { 2165107120Sjulian if (rt->hook == NULL || NG_HOOK_NOT_VALID(rt->hook)) 2166107120Sjulian continue; 2167107120Sjulian 2168107120Sjulian /* Match src and dst */ 2169107120Sjulian if (have_src) { 2170107120Sjulian if (bcmp(&pcb->src, &rt->src, sizeof(rt->src)) == 0) 2171107120Sjulian break; 2172107120Sjulian } else { 2173107120Sjulian if (bcmp(&pcb->dst, &rt->src, sizeof(rt->src)) != 0) 2174107120Sjulian break; 2175107120Sjulian } 2176107120Sjulian } 2177107120Sjulian 2178107120Sjulian if (rt != NULL) { 2179107120Sjulian pcb->rt = rt; 2180107120Sjulian 2181107120Sjulian if (!have_src) 2182107120Sjulian bcopy(&rt->src, &pcb->src, sizeof(pcb->src)); 2183107120Sjulian } else 2184107120Sjulian error = EHOSTUNREACH; 2185107120Sjulian 2186107120Sjulian /* 2187107120Sjulian * Send L2CA_Connect request 2188107120Sjulian */ 2189107120Sjulian 2190107120Sjulian if (error == 0) { 2191107120Sjulian error = ng_btsocket_l2cap_send_l2ca_con_req(pcb); 2192107120Sjulian if (error == 0) { 2193107120Sjulian pcb->flags |= NG_BTSOCKET_L2CAP_CLIENT; 2194107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CONNECTING; 2195107120Sjulian soisconnecting(pcb->so); 2196107120Sjulian 2197107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2198107120Sjulian } 2199107120Sjulian } 2200107120Sjulian 2201114878Sjulian mtx_unlock(&pcb->pcb_mtx); 2202114878Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2203114878Sjulian mtx_unlock(&ng_btsocket_l2cap_rt_mtx); 2204114878Sjulian 2205107120Sjulian return (error); 2206107120Sjulian} /* ng_btsocket_l2cap_connect */ 2207107120Sjulian 2208107120Sjulian/* 2209107120Sjulian * Process ioctl's calls on socket 2210107120Sjulian */ 2211107120Sjulian 2212107120Sjulianint 2213107120Sjulianng_btsocket_l2cap_control(struct socket *so, u_long cmd, caddr_t data, 2214107120Sjulian struct ifnet *ifp, struct thread *td) 2215107120Sjulian{ 2216107120Sjulian return (EINVAL); 2217107120Sjulian} /* ng_btsocket_l2cap_control */ 2218107120Sjulian 2219107120Sjulian/* 2220107120Sjulian * Process getsockopt/setsockopt system calls 2221107120Sjulian */ 2222107120Sjulian 2223107120Sjulianint 2224107120Sjulianng_btsocket_l2cap_ctloutput(struct socket *so, struct sockopt *sopt) 2225107120Sjulian{ 2226107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2227107120Sjulian int error = 0; 2228107120Sjulian ng_l2cap_cfg_opt_val_t v; 2229107120Sjulian 2230107120Sjulian if (pcb == NULL) 2231107120Sjulian return (EINVAL); 2232107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2233107120Sjulian return (EINVAL); 2234107120Sjulian 2235107120Sjulian if (sopt->sopt_level != SOL_L2CAP) 2236107120Sjulian return (0); 2237107120Sjulian 2238107120Sjulian mtx_lock(&pcb->pcb_mtx); 2239107120Sjulian 2240107120Sjulian switch (sopt->sopt_dir) { 2241107120Sjulian case SOPT_GET: 2242107120Sjulian switch (sopt->sopt_name) { 2243107120Sjulian case SO_L2CAP_IMTU: /* get incoming MTU */ 2244107120Sjulian error = sooptcopyout(sopt, &pcb->imtu, 2245107120Sjulian sizeof(pcb->imtu)); 2246107120Sjulian break; 2247107120Sjulian 2248107120Sjulian case SO_L2CAP_OMTU: /* get outgoing (peer incoming) MTU */ 2249107120Sjulian error = sooptcopyout(sopt, &pcb->omtu, 2250107120Sjulian sizeof(pcb->omtu)); 2251107120Sjulian break; 2252107120Sjulian 2253107120Sjulian case SO_L2CAP_IFLOW: /* get incoming flow spec. */ 2254107120Sjulian error = sooptcopyout(sopt, &pcb->iflow, 2255107120Sjulian sizeof(pcb->iflow)); 2256107120Sjulian break; 2257107120Sjulian 2258107120Sjulian case SO_L2CAP_OFLOW: /* get outgoing flow spec. */ 2259107120Sjulian error = sooptcopyout(sopt, &pcb->oflow, 2260107120Sjulian sizeof(pcb->oflow)); 2261107120Sjulian break; 2262107120Sjulian 2263107120Sjulian case SO_L2CAP_FLUSH: /* get flush timeout */ 2264107120Sjulian error = sooptcopyout(sopt, &pcb->flush_timo, 2265107120Sjulian sizeof(pcb->flush_timo)); 2266107120Sjulian break; 2267107120Sjulian 2268107120Sjulian default: 2269107120Sjulian error = ENOPROTOOPT; 2270107120Sjulian break; 2271107120Sjulian } 2272107120Sjulian break; 2273107120Sjulian 2274107120Sjulian case SOPT_SET: 2275107120Sjulian /* 2276114878Sjulian * XXX 2277114878Sjulian * We do not allow to change these parameters while socket is 2278114878Sjulian * connected or we are in the process of creating a connection. 2279114878Sjulian * May be this should indicate re-configuration of the open 2280114878Sjulian * channel? 2281107120Sjulian */ 2282107120Sjulian 2283107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) 2284107120Sjulian return (EACCES); 2285107120Sjulian 2286107120Sjulian switch (sopt->sopt_name) { 2287107120Sjulian case SO_L2CAP_IMTU: /* set incoming MTU */ 2288107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v), sizeof(v.mtu)); 2289107120Sjulian if (error == 0) 2290107120Sjulian pcb->imtu = v.mtu; 2291107120Sjulian break; 2292107120Sjulian 2293107120Sjulian case SO_L2CAP_OFLOW: /* set outgoing flow spec. */ 2294107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v),sizeof(v.flow)); 2295107120Sjulian if (error == 0) 2296107120Sjulian bcopy(&v.flow, &pcb->oflow, sizeof(pcb->oflow)); 2297107120Sjulian break; 2298107120Sjulian 2299107120Sjulian case SO_L2CAP_FLUSH: /* set flush timeout */ 2300107120Sjulian error = sooptcopyin(sopt, &v, sizeof(v), 2301107120Sjulian sizeof(v.flush_timo)); 2302107120Sjulian if (error == 0) 2303107120Sjulian pcb->flush_timo = v.flush_timo; 2304107120Sjulian break; 2305107120Sjulian 2306107120Sjulian default: 2307107120Sjulian error = ENOPROTOOPT; 2308107120Sjulian break; 2309107120Sjulian } 2310107120Sjulian break; 2311107120Sjulian 2312107120Sjulian default: 2313107120Sjulian error = EINVAL; 2314107120Sjulian break; 2315107120Sjulian } 2316107120Sjulian 2317107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2318107120Sjulian 2319107120Sjulian return (error); 2320107120Sjulian} /* ng_btsocket_l2cap_ctloutput */ 2321107120Sjulian 2322107120Sjulian/* 2323107120Sjulian * Detach and destroy socket 2324107120Sjulian */ 2325107120Sjulian 2326157370Srwatsonvoid 2327107120Sjulianng_btsocket_l2cap_detach(struct socket *so) 2328107120Sjulian{ 2329107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2330107120Sjulian 2331157370Srwatson KASSERT(pcb != NULL, ("ng_btsocket_l2cap_detach: pcb == NULL")); 2332157370Srwatson 2333107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2334157370Srwatson return; 2335107120Sjulian 2336114878Sjulian mtx_lock(&ng_btsocket_l2cap_sockets_mtx); 2337107120Sjulian mtx_lock(&pcb->pcb_mtx); 2338107120Sjulian 2339107120Sjulian /* XXX what to do with pending request? */ 2340107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 2341107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 2342107120Sjulian 2343107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED && 2344107120Sjulian pcb->state != NG_BTSOCKET_L2CAP_DISCONNECTING) 2345107120Sjulian /* Send disconnect request with "zero" token */ 2346107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 2347107120Sjulian 2348107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2349107120Sjulian 2350114878Sjulian LIST_REMOVE(pcb, next); 2351107120Sjulian 2352107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2353107120Sjulian mtx_unlock(&ng_btsocket_l2cap_sockets_mtx); 2354107120Sjulian 2355107120Sjulian mtx_destroy(&pcb->pcb_mtx); 2356107120Sjulian bzero(pcb, sizeof(*pcb)); 2357107120Sjulian FREE(pcb, M_NETGRAPH_BTSOCKET_L2CAP); 2358107120Sjulian 2359114878Sjulian soisdisconnected(so); 2360114878Sjulian so->so_pcb = NULL; 2361107120Sjulian} /* ng_btsocket_l2cap_detach */ 2362107120Sjulian 2363107120Sjulian/* 2364107120Sjulian * Disconnect socket 2365107120Sjulian */ 2366107120Sjulian 2367107120Sjulianint 2368107120Sjulianng_btsocket_l2cap_disconnect(struct socket *so) 2369107120Sjulian{ 2370107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2371107120Sjulian int error = 0; 2372107120Sjulian 2373107120Sjulian if (pcb == NULL) 2374107120Sjulian return (EINVAL); 2375107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2376107120Sjulian return (EINVAL); 2377107120Sjulian 2378107120Sjulian mtx_lock(&pcb->pcb_mtx); 2379107120Sjulian 2380107120Sjulian if (pcb->state == NG_BTSOCKET_L2CAP_DISCONNECTING) { 2381107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2382107120Sjulian return (EINPROGRESS); 2383107120Sjulian } 2384107120Sjulian 2385107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_CLOSED) { 2386107120Sjulian /* XXX FIXME what to do with pending request? */ 2387107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) 2388107120Sjulian ng_btsocket_l2cap_untimeout(pcb); 2389107120Sjulian 2390107120Sjulian error = ng_btsocket_l2cap_send_l2ca_discon_req(pcb->token, pcb); 2391107120Sjulian if (error == 0) { 2392107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_DISCONNECTING; 2393107120Sjulian soisdisconnecting(so); 2394107120Sjulian 2395107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2396107120Sjulian } 2397107120Sjulian 2398107120Sjulian /* XXX FIXME what to do if error != 0 */ 2399107120Sjulian } 2400107120Sjulian 2401107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2402107120Sjulian 2403107120Sjulian return (error); 2404107120Sjulian} /* ng_btsocket_l2cap_disconnect */ 2405107120Sjulian 2406107120Sjulian/* 2407107120Sjulian * Listen on socket 2408107120Sjulian */ 2409107120Sjulian 2410107120Sjulianint 2411151888Srwatsonng_btsocket_l2cap_listen(struct socket *so, int backlog, struct thread *td) 2412107120Sjulian{ 2413107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2414142190Srwatson int error; 2415107120Sjulian 2416142190Srwatson SOCK_LOCK(so); 2417142190Srwatson error = solisten_proto_check(so); 2418142190Srwatson if (error != 0) 2419142190Srwatson goto out; 2420142190Srwatson if (pcb == NULL) { 2421142190Srwatson error = EINVAL; 2422142190Srwatson goto out; 2423142190Srwatson } 2424142190Srwatson if (ng_btsocket_l2cap_node == NULL) { 2425142190Srwatson error = EINVAL; 2426142190Srwatson goto out; 2427142190Srwatson } 2428142190Srwatson if (pcb->psm == 0) { 2429142190Srwatson error = EDESTADDRREQ; 2430142190Srwatson goto out; 2431142190Srwatson } 2432151888Srwatson solisten_proto(so, backlog); 2433142190Srwatsonout: 2434142190Srwatson SOCK_UNLOCK(so); 2435142190Srwatson return (error); 2436107120Sjulian} /* ng_btsocket_listen */ 2437107120Sjulian 2438107120Sjulian/* 2439107120Sjulian * Get peer address 2440107120Sjulian */ 2441107120Sjulian 2442107120Sjulianint 2443107120Sjulianng_btsocket_l2cap_peeraddr(struct socket *so, struct sockaddr **nam) 2444107120Sjulian{ 2445107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2446107120Sjulian struct sockaddr_l2cap sa; 2447107120Sjulian 2448107120Sjulian if (pcb == NULL) 2449107120Sjulian return (EINVAL); 2450107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2451107120Sjulian return (EINVAL); 2452107120Sjulian 2453107120Sjulian bcopy(&pcb->dst, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr)); 2454107120Sjulian sa.l2cap_psm = htole16(pcb->psm); 2455107120Sjulian sa.l2cap_len = sizeof(sa); 2456107120Sjulian sa.l2cap_family = AF_BLUETOOTH; 2457107120Sjulian 2458126425Srwatson *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 2459107120Sjulian 2460107120Sjulian return ((*nam == NULL)? ENOMEM : 0); 2461107120Sjulian} /* ng_btsocket_l2cap_peeraddr */ 2462107120Sjulian 2463107120Sjulian/* 2464107120Sjulian * Send data to socket 2465107120Sjulian */ 2466107120Sjulian 2467107120Sjulianint 2468107120Sjulianng_btsocket_l2cap_send(struct socket *so, int flags, struct mbuf *m, 2469107120Sjulian struct sockaddr *nam, struct mbuf *control, struct thread *td) 2470107120Sjulian{ 2471107120Sjulian ng_btsocket_l2cap_pcb_t *pcb = so2l2cap_pcb(so); 2472107120Sjulian int error = 0; 2473107120Sjulian 2474107120Sjulian if (ng_btsocket_l2cap_node == NULL) { 2475107120Sjulian error = ENETDOWN; 2476107120Sjulian goto drop; 2477107120Sjulian } 2478107120Sjulian 2479107120Sjulian /* Check socket and input */ 2480107120Sjulian if (pcb == NULL || m == NULL || control != NULL) { 2481107120Sjulian error = EINVAL; 2482107120Sjulian goto drop; 2483107120Sjulian } 2484107120Sjulian 2485107120Sjulian mtx_lock(&pcb->pcb_mtx); 2486107120Sjulian 2487107120Sjulian /* Make sure socket is connected */ 2488107120Sjulian if (pcb->state != NG_BTSOCKET_L2CAP_OPEN) { 2489107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2490107120Sjulian error = ENOTCONN; 2491107120Sjulian goto drop; 2492107120Sjulian } 2493107120Sjulian 2494107120Sjulian /* Check route */ 2495107120Sjulian if (pcb->rt == NULL || 2496107120Sjulian pcb->rt->hook == NULL || NG_HOOK_NOT_VALID(pcb->rt->hook)) { 2497107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2498107120Sjulian error = ENETDOWN; 2499107120Sjulian goto drop; 2500107120Sjulian } 2501107120Sjulian 2502107120Sjulian /* Check packet size agains outgoing (peer's incoming) MTU) */ 2503107120Sjulian if (m->m_pkthdr.len > pcb->omtu) { 2504107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2505107120Sjulian"%s: Packet too big, len=%d, omtu=%d\n", __func__, m->m_pkthdr.len, pcb->omtu); 2506107120Sjulian 2507107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2508107120Sjulian error = EMSGSIZE; 2509107120Sjulian goto drop; 2510107120Sjulian } 2511107120Sjulian 2512107120Sjulian /* 2513107120Sjulian * First put packet on socket send queue. Then check if we have 2514107120Sjulian * pending timeout. If we do not have timeout then we must send 2515107120Sjulian * packet and schedule timeout. Otherwise do nothing and wait for 2516107120Sjulian * L2CA_WRITE_RSP. 2517107120Sjulian */ 2518107120Sjulian 2519107120Sjulian sbappendrecord(&pcb->so->so_snd, m); 2520107120Sjulian m = NULL; 2521107120Sjulian 2522107120Sjulian if (!(pcb->flags & NG_BTSOCKET_L2CAP_TIMO)) { 2523107120Sjulian error = ng_btsocket_l2cap_send2(pcb); 2524107120Sjulian if (error == 0) 2525107120Sjulian ng_btsocket_l2cap_timeout(pcb); 2526107120Sjulian else 2527107120Sjulian sbdroprecord(&pcb->so->so_snd); /* XXX */ 2528107120Sjulian } 2529107120Sjulian 2530107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2531107120Sjuliandrop: 2532107120Sjulian NG_FREE_M(m); /* checks for != NULL */ 2533107120Sjulian NG_FREE_M(control); 2534107120Sjulian 2535107120Sjulian return (error); 2536107120Sjulian} /* ng_btsocket_l2cap_send */ 2537107120Sjulian 2538107120Sjulian/* 2539107120Sjulian * Send first packet in the socket queue to the L2CAP layer 2540107120Sjulian */ 2541107120Sjulian 2542107120Sjulianstatic int 2543107120Sjulianng_btsocket_l2cap_send2(ng_btsocket_l2cap_pcb_p pcb) 2544107120Sjulian{ 2545107120Sjulian struct mbuf *m = NULL; 2546107120Sjulian ng_l2cap_l2ca_hdr_t *hdr = NULL; 2547107120Sjulian int error = 0; 2548107120Sjulian 2549107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2550107120Sjulian 2551107120Sjulian if (pcb->so->so_snd.sb_cc == 0) 2552107120Sjulian return (EINVAL); /* XXX */ 2553107120Sjulian 2554111119Simp m = m_dup(pcb->so->so_snd.sb_mb, M_DONTWAIT); 2555107120Sjulian if (m == NULL) 2556107120Sjulian return (ENOBUFS); 2557107120Sjulian 2558107120Sjulian /* Create L2CA packet header */ 2559114878Sjulian M_PREPEND(m, sizeof(*hdr), M_DONTWAIT); 2560107120Sjulian if (m != NULL) 2561107120Sjulian if (m->m_len < sizeof(*hdr)) 2562107120Sjulian m = m_pullup(m, sizeof(*hdr)); 2563107120Sjulian 2564107120Sjulian if (m == NULL) { 2565107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2566107120Sjulian"%s: Failed to create L2CA packet header\n", __func__); 2567107120Sjulian 2568107120Sjulian return (ENOBUFS); 2569107120Sjulian } 2570107120Sjulian 2571107120Sjulian hdr = mtod(m, ng_l2cap_l2ca_hdr_t *); 2572107120Sjulian hdr->token = pcb->token; 2573107120Sjulian hdr->length = m->m_pkthdr.len - sizeof(*hdr); 2574107120Sjulian hdr->lcid = pcb->cid; 2575107120Sjulian 2576107120Sjulian NG_BTSOCKET_L2CAP_INFO( 2577107120Sjulian"%s: Sending packet: len=%d, length=%d, lcid=%d, token=%d, state=%d\n", 2578107120Sjulian __func__, m->m_pkthdr.len, hdr->length, hdr->lcid, 2579107120Sjulian hdr->token, pcb->state); 2580107120Sjulian 2581107120Sjulian /* 2582107120Sjulian * If we got here than we have successfuly creates new L2CAP 2583107120Sjulian * data packet and now we can send it to the L2CAP layer 2584107120Sjulian */ 2585107120Sjulian 2586107120Sjulian NG_SEND_DATA_ONLY(error, pcb->rt->hook, m); 2587107120Sjulian 2588107120Sjulian return (error); 2589107120Sjulian} /* ng_btsocket_l2cap_send2 */ 2590107120Sjulian 2591107120Sjulian/* 2592107120Sjulian * Get socket address 2593107120Sjulian */ 2594107120Sjulian 2595107120Sjulianint 2596107120Sjulianng_btsocket_l2cap_sockaddr(struct socket *so, struct sockaddr **nam) 2597107120Sjulian{ 2598107120Sjulian ng_btsocket_l2cap_pcb_p pcb = so2l2cap_pcb(so); 2599107120Sjulian struct sockaddr_l2cap sa; 2600107120Sjulian 2601107120Sjulian if (pcb == NULL) 2602107120Sjulian return (EINVAL); 2603107120Sjulian if (ng_btsocket_l2cap_node == NULL) 2604107120Sjulian return (EINVAL); 2605107120Sjulian 2606107120Sjulian bcopy(&pcb->src, &sa.l2cap_bdaddr, sizeof(sa.l2cap_bdaddr)); 2607107120Sjulian sa.l2cap_psm = htole16(pcb->psm); 2608107120Sjulian sa.l2cap_len = sizeof(sa); 2609107120Sjulian sa.l2cap_family = AF_BLUETOOTH; 2610107120Sjulian 2611126425Srwatson *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); 2612107120Sjulian 2613107120Sjulian return ((*nam == NULL)? ENOMEM : 0); 2614107120Sjulian} /* ng_btsocket_l2cap_sockaddr */ 2615107120Sjulian 2616107120Sjulian/***************************************************************************** 2617107120Sjulian ***************************************************************************** 2618107120Sjulian ** Misc. functions 2619107120Sjulian ***************************************************************************** 2620107120Sjulian *****************************************************************************/ 2621107120Sjulian 2622107120Sjulian/* 2623107120Sjulian * Look for the socket that listens on given PSM and bdaddr. Returns exact or 2624114878Sjulian * close match (if any). Caller must hold ng_btsocket_l2cap_sockets_mtx. 2625107120Sjulian */ 2626107120Sjulian 2627107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2628107120Sjulianng_btsocket_l2cap_pcb_by_addr(bdaddr_p bdaddr, int psm) 2629107120Sjulian{ 2630107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL, p1 = NULL; 2631107120Sjulian 2632114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2633107120Sjulian 2634107120Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) { 2635107120Sjulian if (p->so == NULL || !(p->so->so_options & SO_ACCEPTCONN) || 2636107120Sjulian p->psm != psm) 2637107120Sjulian continue; 2638107120Sjulian 2639107120Sjulian if (bcmp(&p->src, bdaddr, sizeof(p->src)) == 0) 2640107120Sjulian break; 2641107120Sjulian 2642107120Sjulian if (bcmp(&p->src, NG_HCI_BDADDR_ANY, sizeof(p->src)) == 0) 2643107120Sjulian p1 = p; 2644107120Sjulian } 2645107120Sjulian 2646107120Sjulian return ((p != NULL)? p : p1); 2647107120Sjulian} /* ng_btsocket_l2cap_pcb_by_addr */ 2648107120Sjulian 2649107120Sjulian/* 2650114878Sjulian * Look for the socket that has given token. 2651114878Sjulian * Caller must hold ng_btsocket_l2cap_sockets_mtx. 2652107120Sjulian */ 2653107120Sjulian 2654107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2655107120Sjulianng_btsocket_l2cap_pcb_by_token(u_int32_t token) 2656107120Sjulian{ 2657107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL; 2658107120Sjulian 2659114878Sjulian if (token == 0) 2660114878Sjulian return (NULL); 2661107120Sjulian 2662114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2663107120Sjulian 2664114878Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) 2665114878Sjulian if (p->token == token) 2666114878Sjulian break; 2667107120Sjulian 2668107120Sjulian return (p); 2669107120Sjulian} /* ng_btsocket_l2cap_pcb_by_token */ 2670107120Sjulian 2671107120Sjulian/* 2672114878Sjulian * Look for the socket that assigned to given source address and channel ID. 2673114878Sjulian * Caller must hold ng_btsocket_l2cap_sockets_mtx 2674107120Sjulian */ 2675107120Sjulian 2676107120Sjulianstatic ng_btsocket_l2cap_pcb_p 2677107120Sjulianng_btsocket_l2cap_pcb_by_cid(bdaddr_p src, int cid) 2678107120Sjulian{ 2679107120Sjulian ng_btsocket_l2cap_pcb_p p = NULL; 2680107120Sjulian 2681114878Sjulian mtx_assert(&ng_btsocket_l2cap_sockets_mtx, MA_OWNED); 2682107120Sjulian 2683107120Sjulian LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next) 2684107120Sjulian if (p->cid == cid && bcmp(src, &p->src, sizeof(p->src)) == 0) 2685107120Sjulian break; 2686107120Sjulian 2687107120Sjulian return (p); 2688107120Sjulian} /* ng_btsocket_l2cap_pcb_by_cid */ 2689107120Sjulian 2690107120Sjulian/* 2691107120Sjulian * Set timeout on socket 2692107120Sjulian */ 2693107120Sjulian 2694107120Sjulianstatic void 2695107120Sjulianng_btsocket_l2cap_timeout(ng_btsocket_l2cap_pcb_p pcb) 2696107120Sjulian{ 2697107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2698107120Sjulian 2699107120Sjulian if (!(pcb->flags & NG_BTSOCKET_L2CAP_TIMO)) { 2700107120Sjulian pcb->flags |= NG_BTSOCKET_L2CAP_TIMO; 2701107120Sjulian pcb->timo = timeout(ng_btsocket_l2cap_process_timeout, pcb, 2702107120Sjulian bluetooth_l2cap_ertx_timeout()); 2703107120Sjulian } else 2704107120Sjulian KASSERT(0, 2705107120Sjulian("%s: Duplicated socket timeout?!\n", __func__)); 2706107120Sjulian} /* ng_btsocket_l2cap_timeout */ 2707107120Sjulian 2708107120Sjulian/* 2709107120Sjulian * Unset timeout on socket 2710107120Sjulian */ 2711107120Sjulian 2712107120Sjulianstatic void 2713107120Sjulianng_btsocket_l2cap_untimeout(ng_btsocket_l2cap_pcb_p pcb) 2714107120Sjulian{ 2715107120Sjulian mtx_assert(&pcb->pcb_mtx, MA_OWNED); 2716107120Sjulian 2717107120Sjulian if (pcb->flags & NG_BTSOCKET_L2CAP_TIMO) { 2718107120Sjulian untimeout(ng_btsocket_l2cap_process_timeout, pcb, pcb->timo); 2719107120Sjulian pcb->flags &= ~NG_BTSOCKET_L2CAP_TIMO; 2720107120Sjulian } else 2721107120Sjulian KASSERT(0, 2722107120Sjulian("%s: No socket timeout?!\n", __func__)); 2723107120Sjulian} /* ng_btsocket_l2cap_untimeout */ 2724107120Sjulian 2725107120Sjulian/* 2726107120Sjulian * Process timeout on socket 2727107120Sjulian */ 2728107120Sjulian 2729107120Sjulianstatic void 2730107120Sjulianng_btsocket_l2cap_process_timeout(void *xpcb) 2731107120Sjulian{ 2732114878Sjulian ng_btsocket_l2cap_pcb_p pcb = (ng_btsocket_l2cap_pcb_p) xpcb; 2733114878Sjulian struct socket *so = NULL; 2734107120Sjulian 2735107120Sjulian mtx_lock(&pcb->pcb_mtx); 2736107120Sjulian 2737107120Sjulian pcb->flags &= ~NG_BTSOCKET_L2CAP_TIMO; 2738107120Sjulian pcb->so->so_error = ETIMEDOUT; 2739107120Sjulian 2740107120Sjulian switch (pcb->state) { 2741107120Sjulian case NG_BTSOCKET_L2CAP_CONNECTING: 2742107120Sjulian case NG_BTSOCKET_L2CAP_CONFIGURING: 2743107120Sjulian /* Send disconnect request with "zero" token */ 2744107120Sjulian if (pcb->cid != 0) 2745107120Sjulian ng_btsocket_l2cap_send_l2ca_discon_req(0, pcb); 2746107120Sjulian 2747107120Sjulian /* ... and close the socket */ 2748107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2749107120Sjulian soisdisconnected(pcb->so); 2750114878Sjulian 2751114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 2752114878Sjulian so = pcb->so; 2753107120Sjulian break; 2754107120Sjulian 2755107120Sjulian case NG_BTSOCKET_L2CAP_OPEN: 2756107120Sjulian /* Send timeout - drop packet and wakeup sender */ 2757107120Sjulian sbdroprecord(&pcb->so->so_snd); 2758107120Sjulian sowwakeup(pcb->so); 2759107120Sjulian break; 2760107120Sjulian 2761107120Sjulian case NG_BTSOCKET_L2CAP_DISCONNECTING: 2762107120Sjulian /* Disconnect timeout - disconnect the socket anyway */ 2763107120Sjulian pcb->state = NG_BTSOCKET_L2CAP_CLOSED; 2764107120Sjulian soisdisconnected(pcb->so); 2765114878Sjulian 2766114878Sjulian if (pcb->so->so_state & SS_NOFDREF) 2767114878Sjulian so = pcb->so; 2768107120Sjulian break; 2769107120Sjulian 2770107120Sjulian default: 2771107120Sjulian NG_BTSOCKET_L2CAP_ERR( 2772107120Sjulian"%s: Invalid socket state=%d\n", __func__, pcb->state); 2773107120Sjulian break; 2774107120Sjulian } 2775107120Sjulian 2776107120Sjulian mtx_unlock(&pcb->pcb_mtx); 2777114878Sjulian 2778114878Sjulian if (so != NULL) 2779114878Sjulian ng_btsocket_l2cap_detach(so); 2780107120Sjulian} /* ng_btsocket_l2cap_process_timeout */ 2781107120Sjulian 2782107120Sjulian/* 2783107120Sjulian * Translate HCI/L2CAP error code into "errno" code 2784107120Sjulian * XXX Note: Some L2CAP and HCI error codes have the same value, but 2785107120Sjulian * different meaning 2786107120Sjulian */ 2787107120Sjulian 2788107120Sjulianstatic int 2789107120Sjulianng_btsocket_l2cap_result2errno(int result) 2790107120Sjulian{ 2791107120Sjulian switch (result) { 2792107120Sjulian case 0x00: /* No error */ 2793107120Sjulian return (0); 2794107120Sjulian 2795107120Sjulian case 0x01: /* Unknown HCI command */ 2796107120Sjulian return (ENODEV); 2797107120Sjulian 2798107120Sjulian case 0x02: /* No connection */ 2799107120Sjulian return (ENOTCONN); 2800107120Sjulian 2801107120Sjulian case 0x03: /* Hardware failure */ 2802107120Sjulian return (EIO); 2803107120Sjulian 2804107120Sjulian case 0x04: /* Page timeout */ 2805107120Sjulian return (EHOSTDOWN); 2806107120Sjulian 2807107120Sjulian case 0x05: /* Authentication failure */ 2808107120Sjulian case 0x06: /* Key missing */ 2809107120Sjulian case 0x18: /* Pairing not allowed */ 2810107120Sjulian case 0x21: /* Role change not allowed */ 2811107120Sjulian case 0x24: /* LMP PSU not allowed */ 2812107120Sjulian case 0x25: /* Encryption mode not acceptable */ 2813107120Sjulian case 0x26: /* Unit key used */ 2814107120Sjulian return (EACCES); 2815107120Sjulian 2816107120Sjulian case 0x07: /* Memory full */ 2817107120Sjulian return (ENOMEM); 2818107120Sjulian 2819107120Sjulian case 0x08: /* Connection timeout */ 2820107120Sjulian case 0x10: /* Host timeout */ 2821107120Sjulian case 0x22: /* LMP response timeout */ 2822107120Sjulian case 0xee: /* HCI timeout */ 2823107120Sjulian case 0xeeee: /* L2CAP timeout */ 2824107120Sjulian return (ETIMEDOUT); 2825107120Sjulian 2826107120Sjulian case 0x09: /* Max number of connections */ 2827107120Sjulian case 0x0a: /* Max number of SCO connections to a unit */ 2828107120Sjulian return (EMLINK); 2829107120Sjulian 2830107120Sjulian case 0x0b: /* ACL connection already exists */ 2831107120Sjulian return (EEXIST); 2832107120Sjulian 2833107120Sjulian case 0x0c: /* Command disallowed */ 2834107120Sjulian return (EBUSY); 2835107120Sjulian 2836107120Sjulian case 0x0d: /* Host rejected due to limited resources */ 2837107120Sjulian case 0x0e: /* Host rejected due to securiity reasons */ 2838107120Sjulian case 0x0f: /* Host rejected due to remote unit is a personal unit */ 2839107120Sjulian case 0x1b: /* SCO offset rejected */ 2840107120Sjulian case 0x1c: /* SCO interval rejected */ 2841107120Sjulian case 0x1d: /* SCO air mode rejected */ 2842107120Sjulian return (ECONNREFUSED); 2843107120Sjulian 2844107120Sjulian case 0x11: /* Unsupported feature or parameter value */ 2845107120Sjulian case 0x19: /* Unknown LMP PDU */ 2846107120Sjulian case 0x1a: /* Unsupported remote feature */ 2847107120Sjulian case 0x20: /* Unsupported LMP parameter value */ 2848107120Sjulian case 0x27: /* QoS is not supported */ 2849107120Sjulian case 0x29: /* Paring with unit key not supported */ 2850107120Sjulian return (EOPNOTSUPP); 2851107120Sjulian 2852107120Sjulian case 0x12: /* Invalid HCI command parameter */ 2853107120Sjulian case 0x1e: /* Invalid LMP parameters */ 2854107120Sjulian return (EINVAL); 2855107120Sjulian 2856107120Sjulian case 0x13: /* Other end terminated connection: User ended connection */ 2857107120Sjulian case 0x14: /* Other end terminated connection: Low resources */ 2858107120Sjulian case 0x15: /* Other end terminated connection: About to power off */ 2859107120Sjulian return (ECONNRESET); 2860107120Sjulian 2861107120Sjulian case 0x16: /* Connection terminated by local host */ 2862107120Sjulian return (ECONNABORTED); 2863107120Sjulian 2864107120Sjulian#if 0 /* XXX not yet */ 2865107120Sjulian case 0x17: /* Repeated attempts */ 2866107120Sjulian case 0x1f: /* Unspecified error */ 2867107120Sjulian case 0x23: /* LMP error transaction collision */ 2868107120Sjulian case 0x28: /* Instant passed */ 2869107120Sjulian#endif 2870107120Sjulian } 2871107120Sjulian 2872107120Sjulian return (ENOSYS); 2873107120Sjulian} /* ng_btsocket_l2cap_result2errno */ 2874107120Sjulian 2875