1 /* $DragonFly: src/sys/netbt/l2cap.h,v 1.2 2008/03/18 13:41:42 hasso Exp $ */ 2 /* $OpenBSD: src/sys/netbt/l2cap.h,v 1.5 2008/02/24 21:34:48 uwe Exp $ */ 3 /* $NetBSD: l2cap.h,v 1.6 2007/11/03 17:20:17 plunky Exp $ */ 4 5 /*- 6 * Copyright (c) 2005 Iain Hibbert. 7 * Copyright (c) 2006 Itronix Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of Itronix Inc. may not be used to endorse 19 * or promote products derived from this software without specific 20 * prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29 * ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 /*- 35 * Copyright (c) Maksim Yevmenkin <m_evmenkin@yahoo.com> 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 * 59 * $Id: l2cap.h,v 1.6 2007/11/03 17:20:17 plunky Exp $ 60 * $FreeBSD: src/sys/netgraph/bluetooth/include/l2cap.h,v 1.4 2005/08/31 18:13:23 emax Exp $ 61 */ 62 63 /* 64 * This file contains everything that application needs to know about 65 * Link Layer Control and Adaptation Protocol (L2CAP). All information 66 * was obtained from Bluetooth Specification Books (v1.1 and up) 67 * 68 * This file can be included by both kernel and userland applications. 69 */ 70 71 #ifndef _NETBT_L2CAP_H_ 72 #define _NETBT_L2CAP_H_ 73 74 #include <sys/types.h> 75 76 /************************************************************************** 77 ************************************************************************** 78 ** Common defines and types (L2CAP) 79 ************************************************************************** 80 **************************************************************************/ 81 82 /* 83 * Channel IDs are assigned per machine. So the total number of channels that 84 * a machine can have open at the same time is 0xffff - 0x0040 = 0xffbf (65471). 85 * This number does not depend on number of HCI connections. 86 */ 87 88 #define L2CAP_NULL_CID 0x0000 /* DO NOT USE THIS CID */ 89 #define L2CAP_SIGNAL_CID 0x0001 /* signaling channel ID */ 90 #define L2CAP_CLT_CID 0x0002 /* connectionless channel ID */ 91 /* 0x0003 - 0x003f Reserved */ 92 #define L2CAP_FIRST_CID 0x0040 /* dynamically alloc. (start) */ 93 #define L2CAP_LAST_CID 0xffff /* dynamically alloc. (end) */ 94 95 /* L2CAP MTU */ 96 #define L2CAP_MTU_MINIMUM 48 97 #define L2CAP_MTU_DEFAULT 672 98 #define L2CAP_MTU_MAXIMUM 0xffff 99 100 /* L2CAP flush and link timeouts */ 101 #define L2CAP_FLUSH_TIMO_DEFAULT 0xffff /* always retransmit */ 102 #define L2CAP_LINK_TIMO_DEFAULT 0xffff 103 104 /* L2CAP Command Reject reasons */ 105 #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 106 #define L2CAP_REJ_MTU_EXCEEDED 0x0001 107 #define L2CAP_REJ_INVALID_CID 0x0002 108 /* 0x0003 - 0xffff - reserved for future use */ 109 110 /* Protocol/Service Multiplexor (PSM) values */ 111 #define L2CAP_PSM_ANY 0x0000 /* Any/Invalid PSM */ 112 #define L2CAP_PSM_SDP 0x0001 /* Service Discovery Protocol */ 113 #define L2CAP_PSM_RFCOMM 0x0003 /* RFCOMM protocol */ 114 #define L2CAP_PSM_TCP 0x0005 /* Telephony Control Protocol */ 115 #define L2CAP_PSM_TCS 0x0007 /* TCS cordless */ 116 #define L2CAP_PSM_BNEP 0x000f /* Bluetooth Network */ 117 /* Encapsulation Protocol*/ 118 #define L2CAP_PSM_HID_CNTL 0x0011 /* HID Control */ 119 #define L2CAP_PSM_HID_INTR 0x0013 /* HID Interrupt */ 120 #define L2CAP_PSM_ESDP 0x0015 /* Extended Service */ 121 /* Discovery Profile */ 122 #define L2CAP_PSM_AVCTP 0x0017 /* Audio/Visual Control */ 123 /* Transport Protocol */ 124 #define L2CAP_PSM_AVDTP 0x0019 /* Audio/Visual Distribution */ 125 /* Transport Protocol */ 126 /* 0x0019 - 0x1000 - reserved for future use */ 127 128 #define L2CAP_PSM_INVALID(psm) (((psm) & 0x0101) != 0x0001) 129 130 /* L2CAP Connection response command result codes */ 131 #define L2CAP_SUCCESS 0x0000 132 #define L2CAP_PENDING 0x0001 133 #define L2CAP_PSM_NOT_SUPPORTED 0x0002 134 #define L2CAP_SECURITY_BLOCK 0x0003 135 #define L2CAP_NO_RESOURCES 0x0004 136 #define L2CAP_TIMEOUT 0xeeee 137 #define L2CAP_UNKNOWN 0xffff 138 /* 0x0005 - 0xffff - reserved for future use */ 139 140 /* L2CAP Connection response status codes */ 141 #define L2CAP_NO_INFO 0x0000 142 #define L2CAP_AUTH_PENDING 0x0001 143 #define L2CAP_AUTZ_PENDING 0x0002 144 /* 0x0003 - 0xffff - reserved for future use */ 145 146 /* L2CAP Configuration response result codes */ 147 #define L2CAP_UNACCEPTABLE_PARAMS 0x0001 148 #define L2CAP_REJECT 0x0002 149 #define L2CAP_UNKNOWN_OPTION 0x0003 150 /* 0x0003 - 0xffff - reserved for future use */ 151 152 /* L2CAP Configuration options */ 153 #define L2CAP_OPT_CFLAG_BIT 0x0001 154 #define L2CAP_OPT_CFLAG(flags) ((flags) & L2CAP_OPT_CFLAG_BIT) 155 #define L2CAP_OPT_HINT_BIT 0x80 156 #define L2CAP_OPT_HINT(type) ((type) & L2CAP_OPT_HINT_BIT) 157 #define L2CAP_OPT_HINT_MASK 0x7f 158 #define L2CAP_OPT_MTU 0x01 159 #define L2CAP_OPT_MTU_SIZE sizeof(uint16_t) 160 #define L2CAP_OPT_FLUSH_TIMO 0x02 161 #define L2CAP_OPT_FLUSH_TIMO_SIZE sizeof(uint16_t) 162 #define L2CAP_OPT_QOS 0x03 163 #define L2CAP_OPT_QOS_SIZE sizeof(l2cap_qos_t) 164 #define L2CAP_OPT_RFC 0x04 165 #define L2CAP_OPT_RFC_SIZE sizeof(l2cap_rfc_t) 166 /* 0x05 - 0xff - reserved for future use */ 167 168 /* L2CAP Information request type codes */ 169 #define L2CAP_CONNLESS_MTU 0x0001 170 #define L2CAP_EXTENDED_FEATURES 0x0002 171 /* 0x0003 - 0xffff - reserved for future use */ 172 173 /* L2CAP Information response codes */ 174 #define L2CAP_NOT_SUPPORTED 0x0001 175 /* 0x0002 - 0xffff - reserved for future use */ 176 177 /* L2CAP Quality of Service option */ 178 typedef struct { 179 uint8_t flags; /* reserved for future use */ 180 uint8_t service_type; /* service type */ 181 uint32_t token_rate; /* bytes per second */ 182 uint32_t token_bucket_size; /* bytes */ 183 uint32_t peak_bandwidth; /* bytes per second */ 184 uint32_t latency; /* microseconds */ 185 uint32_t delay_variation; /* microseconds */ 186 } __attribute__ ((__packed__)) l2cap_qos_t; 187 188 /* L2CAP QoS type */ 189 #define L2CAP_QOS_NO_TRAFFIC 0x00 190 #define L2CAP_QOS_BEST_EFFORT 0x01 /* (default) */ 191 #define L2CAP_QOS_GUARANTEED 0x02 192 /* 0x03 - 0xff - reserved for future use */ 193 194 /* L2CAP Retransmission & Flow Control option */ 195 typedef struct { 196 uint8_t mode; /* RFC mode */ 197 uint8_t window_size; /* bytes */ 198 uint8_t max_transmit; /* max retransmissions */ 199 uint16_t retransmit_timo; /* milliseconds */ 200 uint16_t monitor_timo; /* milliseconds */ 201 uint16_t max_pdu_size; /* bytes */ 202 } __attribute__ ((__packed__)) l2cap_rfc_t; 203 204 /* L2CAP RFC mode */ 205 #define L2CAP_RFC_BASIC 0x00 /* (default) */ 206 #define L2CAP_RFC_RETRANSMIT 0x01 207 #define L2CAP_RFC_FLOW 0x02 208 /* 0x03 - 0xff - reserved for future use */ 209 210 /************************************************************************** 211 ************************************************************************** 212 ** Link level defines, headers and types 213 ************************************************************************** 214 **************************************************************************/ 215 216 /* L2CAP header */ 217 typedef struct { 218 uint16_t length; /* payload size */ 219 uint16_t dcid; /* destination channel ID */ 220 } __attribute__ ((__packed__)) l2cap_hdr_t; 221 222 /* L2CAP ConnectionLess Traffic (dcid == L2CAP_CLT_CID) */ 223 typedef struct { 224 uint16_t psm; /* Protocol/Service Multiplexor */ 225 } __attribute__ ((__packed__)) l2cap_clt_hdr_t; 226 227 #define L2CAP_CLT_MTU_MAXIMUM \ 228 (L2CAP_MTU_MAXIMUM - sizeof(l2cap_clt_hdr_t)) 229 230 /* L2CAP Command header (dcid == L2CAP_SIGNAL_CID) */ 231 typedef struct { 232 uint8_t code; /* command OpCode */ 233 uint8_t ident; /* identifier to match request and response */ 234 uint16_t length; /* command parameters length */ 235 } __attribute__ ((__packed__)) l2cap_cmd_hdr_t; 236 237 /* L2CAP Command Reject */ 238 #define L2CAP_COMMAND_REJ 0x01 239 typedef struct { 240 uint16_t reason; /* reason to reject command */ 241 uint16_t data[2];/* optional data */ 242 } __attribute__ ((__packed__)) l2cap_cmd_rej_cp; 243 244 /* L2CAP Connection Request */ 245 #define L2CAP_CONNECT_REQ 0x02 246 typedef struct { 247 uint16_t psm; /* Protocol/Service Multiplexor (PSM) */ 248 uint16_t scid; /* source channel ID */ 249 } __attribute__ ((__packed__)) l2cap_con_req_cp; 250 251 /* L2CAP Connection Response */ 252 #define L2CAP_CONNECT_RSP 0x03 253 typedef struct { 254 uint16_t dcid; /* destination channel ID */ 255 uint16_t scid; /* source channel ID */ 256 uint16_t result; /* 0x00 - success */ 257 uint16_t status; /* more info if result != 0x00 */ 258 } __attribute__ ((__packed__)) l2cap_con_rsp_cp; 259 260 /* L2CAP Configuration Request */ 261 #define L2CAP_CONFIG_REQ 0x04 262 typedef struct { 263 uint16_t dcid; /* destination channel ID */ 264 uint16_t flags; /* flags */ 265 /* uint8_t options[] -- options */ 266 } __attribute__ ((__packed__)) l2cap_cfg_req_cp; 267 268 /* L2CAP Configuration Response */ 269 #define L2CAP_CONFIG_RSP 0x05 270 typedef struct { 271 uint16_t scid; /* source channel ID */ 272 uint16_t flags; /* flags */ 273 uint16_t result; /* 0x00 - success */ 274 /* uint8_t options[] -- options */ 275 } __attribute__ ((__packed__)) l2cap_cfg_rsp_cp; 276 277 /* L2CAP configuration option */ 278 typedef struct { 279 uint8_t type; 280 uint8_t length; 281 /* uint8_t value[] -- option value (depends on type) */ 282 } __attribute__ ((__packed__)) l2cap_cfg_opt_t; 283 284 /* L2CAP configuration option value */ 285 typedef union { 286 uint16_t mtu; /* L2CAP_OPT_MTU */ 287 uint16_t flush_timo; /* L2CAP_OPT_FLUSH_TIMO */ 288 l2cap_qos_t qos; /* L2CAP_OPT_QOS */ 289 l2cap_rfc_t rfc; /* L2CAP_OPT_RFC */ 290 } l2cap_cfg_opt_val_t; 291 292 /* L2CAP Disconnect Request */ 293 #define L2CAP_DISCONNECT_REQ 0x06 294 typedef struct { 295 uint16_t dcid; /* destination channel ID */ 296 uint16_t scid; /* source channel ID */ 297 } __attribute__ ((__packed__)) l2cap_discon_req_cp; 298 299 /* L2CAP Disconnect Response */ 300 #define L2CAP_DISCONNECT_RSP 0x07 301 typedef l2cap_discon_req_cp l2cap_discon_rsp_cp; 302 303 /* L2CAP Echo Request */ 304 #define L2CAP_ECHO_REQ 0x08 305 /* No command parameters, only optional data */ 306 307 /* L2CAP Echo Response */ 308 #define L2CAP_ECHO_RSP 0x09 309 #define L2CAP_MAX_ECHO_SIZE \ 310 (L2CAP_MTU_MAXIMUM - sizeof(l2cap_cmd_hdr_t)) 311 /* No command parameters, only optional data */ 312 313 /* L2CAP Information Request */ 314 #define L2CAP_INFO_REQ 0x0a 315 typedef struct { 316 uint16_t type; /* requested information type */ 317 } __attribute__ ((__packed__)) l2cap_info_req_cp; 318 319 /* L2CAP Information Response */ 320 #define L2CAP_INFO_RSP 0x0b 321 typedef struct { 322 uint16_t type; /* requested information type */ 323 uint16_t result; /* 0x00 - success */ 324 /* uint8_t info[] -- info data (depends on type) 325 * 326 * L2CAP_CONNLESS_MTU - 2 bytes connectionless MTU 327 */ 328 } __attribute__ ((__packed__)) l2cap_info_rsp_cp; 329 330 typedef union { 331 /* L2CAP_CONNLESS_MTU */ 332 struct { 333 uint16_t mtu; 334 } __attribute__ ((__packed__)) mtu; 335 } l2cap_info_rsp_data_t; 336 337 /************************************************************************** 338 ************************************************************************** 339 ** L2CAP Socket Definitions 340 ************************************************************************** 341 **************************************************************************/ 342 343 /* Socket options */ 344 #define SO_L2CAP_IMTU 1 /* incoming MTU */ 345 #define SO_L2CAP_OMTU 2 /* outgoing MTU */ 346 #define SO_L2CAP_IQOS 3 /* incoming QoS */ 347 #define SO_L2CAP_OQOS 4 /* outgoing QoS */ 348 #define SO_L2CAP_FLUSH 5 /* flush timeout */ 349 #define SO_L2CAP_LM 6 /* link mode */ 350 351 /* L2CAP link mode flags */ 352 #define L2CAP_LM_AUTH (1<<0) /* want authentication */ 353 #define L2CAP_LM_ENCRYPT (1<<1) /* want encryption */ 354 #define L2CAP_LM_SECURE (1<<2) /* want secured link */ 355 356 #ifdef _KERNEL 357 #include <vm/vm_zone.h> 358 359 #include <net/if.h> /* for struct ifqueue */ 360 361 LIST_HEAD(l2cap_channel_list, l2cap_channel); 362 363 /* global variables */ 364 extern struct l2cap_channel_list l2cap_active_list; 365 extern struct l2cap_channel_list l2cap_listen_list; 366 extern vm_zone_t l2cap_pdu_pool; 367 extern vm_zone_t l2cap_req_pool; 368 extern const l2cap_qos_t l2cap_default_qos; 369 370 /* sysctl variables */ 371 extern int l2cap_response_timeout; 372 extern int l2cap_response_extended_timeout; 373 extern int l2cap_sendspace, l2cap_recvspace; 374 375 /* 376 * L2CAP Channel 377 */ 378 struct l2cap_channel { 379 struct hci_link *lc_link; /* ACL connection (down) */ 380 uint16_t lc_state; /* channel state */ 381 uint16_t lc_flags; /* channel flags */ 382 uint8_t lc_ident; /* cached request id */ 383 384 uint16_t lc_lcid; /* local channel ID */ 385 struct sockaddr_bt lc_laddr; /* local address */ 386 387 uint16_t lc_rcid; /* remote channel ID */ 388 struct sockaddr_bt lc_raddr; /* remote address */ 389 390 int lc_mode; /* link mode */ 391 uint16_t lc_imtu; /* incoming mtu */ 392 uint16_t lc_omtu; /* outgoing mtu */ 393 uint16_t lc_flush; /* flush timeout */ 394 l2cap_qos_t lc_iqos; /* incoming QoS flow control */ 395 l2cap_qos_t lc_oqos; /* outgoing Qos flow control */ 396 397 uint8_t lc_pending; /* num of pending PDUs */ 398 struct ifqueue lc_txq; /* transmit queue */ 399 400 const struct btproto *lc_proto; /* upper layer callbacks */ 401 void *lc_upper; /* upper layer argument */ 402 403 LIST_ENTRY(l2cap_channel)lc_ncid; /* next channel (ascending CID) */ 404 }; 405 406 /* l2cap_channel state */ 407 #define L2CAP_CLOSED 0 /* closed */ 408 #define L2CAP_WAIT_SEND_CONNECT_REQ 1 /* waiting to send connect request */ 409 #define L2CAP_WAIT_RECV_CONNECT_RSP 2 /* waiting to recv connect response */ 410 #define L2CAP_WAIT_SEND_CONNECT_RSP 3 /* waiting to send connect response */ 411 #define L2CAP_WAIT_CONFIG 4 /* waiting for configuration */ 412 #define L2CAP_OPEN 5 /* user data transfer state */ 413 #define L2CAP_WAIT_DISCONNECT 6 /* have sent disconnect request */ 414 415 /* l2cap_channel flags */ 416 #define L2CAP_SHUTDOWN (1<<0) /* channel is closing */ 417 #define L2CAP_WAIT_CONFIG_REQ (1<<1) /* waiting for config request */ 418 #define L2CAP_WAIT_CONFIG_RSP (1<<2) /* waiting for config response */ 419 420 /* 421 * L2CAP Request 422 */ 423 struct l2cap_req { 424 struct hci_link *lr_link; /* ACL connection */ 425 struct l2cap_channel *lr_chan; /* channel pointer */ 426 uint8_t lr_code; /* request code */ 427 uint8_t lr_id; /* request id */ 428 struct callout lr_rtx; /* response timer */ 429 TAILQ_ENTRY(l2cap_req) lr_next; /* next request on link */ 430 }; 431 432 /* 433 * L2CAP Protocol Data Unit 434 */ 435 struct l2cap_pdu { 436 struct l2cap_channel *lp_chan; /* PDU owner */ 437 struct ifqueue lp_data; /* PDU data */ 438 TAILQ_ENTRY(l2cap_pdu) lp_next; /* next PDU on link */ 439 int lp_pending; /* # of fragments pending */ 440 }; 441 442 /* 443 * L2CAP function prototypes 444 */ 445 446 extern struct pr_usrreqs l2cap_usrreqs; 447 struct socket; 448 struct mbuf; 449 union netmsg; 450 451 /* l2cap_lower.c */ 452 void l2cap_close(struct l2cap_channel *, int); 453 void l2cap_recv_frame(struct mbuf *, struct hci_link *); 454 int l2cap_start(struct l2cap_channel *); 455 456 /* l2cap_misc.c */ 457 void l2cap_init(void); 458 int l2cap_setmode(struct l2cap_channel *); 459 int l2cap_cid_alloc(struct l2cap_channel *); 460 struct l2cap_channel *l2cap_cid_lookup(uint16_t); 461 int l2cap_request_alloc(struct l2cap_channel *, uint8_t); 462 struct l2cap_req *l2cap_request_lookup(struct hci_link *, uint8_t); 463 void l2cap_request_free(struct l2cap_req *); 464 void l2cap_rtx(void *); 465 466 /* l2cap_signal.c */ 467 void l2cap_recv_signal(struct mbuf *, struct hci_link *); 468 int l2cap_send_connect_req(struct l2cap_channel *); 469 int l2cap_send_config_req(struct l2cap_channel *); 470 int l2cap_send_disconnect_req(struct l2cap_channel *); 471 int l2cap_send_connect_rsp(struct hci_link *, uint8_t, uint16_t, uint16_t, uint16_t); 472 473 /* l2cap_socket.c */ 474 int l2cap_usrreq(struct socket *, int, struct mbuf *, struct mbuf *, struct mbuf *); 475 void l2cap_ctloutput(union netmsg *); 476 477 /* l2cap_upper.c */ 478 int l2cap_attach(struct l2cap_channel **, const struct btproto *, void *); 479 int l2cap_bind(struct l2cap_channel *, struct sockaddr_bt *); 480 int l2cap_sockaddr(struct l2cap_channel *, struct sockaddr_bt *); 481 int l2cap_connect(struct l2cap_channel *, struct sockaddr_bt *); 482 int l2cap_peeraddr(struct l2cap_channel *, struct sockaddr_bt *); 483 int l2cap_disconnect(struct l2cap_channel *, int); 484 int l2cap_detach(struct l2cap_channel **); 485 int l2cap_listen(struct l2cap_channel *); 486 int l2cap_send(struct l2cap_channel *, struct mbuf *); 487 int l2cap_setopt(struct l2cap_channel *, int, void *); 488 int l2cap_setopt2(struct l2cap_channel *, int, struct socket *, struct sockopt *); 489 int l2cap_getopt(struct l2cap_channel *, int, void *); 490 491 #endif /* _KERNEL */ 492 493 #endif /* _NETBT_L2CAP_H_ */ 494