| 1 | /* $NetBSD: l2cap.h,v 1.19 2015/11/28 07:50:37 plunky Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2005 Iain Hibbert. |
| 5 | * Copyright (c) 2006 Itronix Inc. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. The name of Itronix Inc. may not be used to endorse |
| 17 | * or promote products derived from this software without specific |
| 18 | * prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY |
| 24 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 27 | * ON ANY THEORY OF LIABILITY, WHETHER IN |
| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 30 | * POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | /*- |
| 33 | * Copyright (c) Maksim Yevmenkin <m_evmenkin@yahoo.com> |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that the following conditions |
| 38 | * are met: |
| 39 | * 1. Redistributions of source code must retain the above copyright |
| 40 | * notice, this list of conditions and the following disclaimer. |
| 41 | * 2. Redistributions in binary form must reproduce the above copyright |
| 42 | * notice, this list of conditions and the following disclaimer in the |
| 43 | * documentation and/or other materials provided with the distribution. |
| 44 | * |
| 45 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 46 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 47 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 48 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 49 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 50 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 51 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 52 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 53 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 54 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 55 | * SUCH DAMAGE. |
| 56 | * |
| 57 | * $Id: l2cap.h,v 1.19 2015/11/28 07:50:37 plunky Exp $ |
| 58 | * $FreeBSD: src/sys/netgraph/bluetooth/include/l2cap.h,v 1.4 2005/08/31 18:13:23 emax Exp $ |
| 59 | */ |
| 60 | |
| 61 | /* |
| 62 | * This file contains everything that application needs to know about |
| 63 | * Link Layer Control and Adaptation Protocol (L2CAP). All information |
| 64 | * was obtained from Bluetooth Specification Books (v1.1 and up) |
| 65 | * |
| 66 | * This file can be included by both kernel and userland applications. |
| 67 | */ |
| 68 | |
| 69 | #ifndef _NETBT_L2CAP_H_ |
| 70 | #define _NETBT_L2CAP_H_ |
| 71 | |
| 72 | #include <sys/types.h> |
| 73 | |
| 74 | /************************************************************************** |
| 75 | ************************************************************************** |
| 76 | ** Common defines and types (L2CAP) |
| 77 | ************************************************************************** |
| 78 | **************************************************************************/ |
| 79 | |
| 80 | /* |
| 81 | * Channel IDs are assigned per machine. So the total number of channels that |
| 82 | * a machine can have open at the same time is 0xffff - 0x0040 = 0xffbf (65471). |
| 83 | * This number does not depend on number of HCI connections. |
| 84 | */ |
| 85 | |
| 86 | #define L2CAP_NULL_CID 0x0000 /* DO NOT USE THIS CID */ |
| 87 | #define L2CAP_SIGNAL_CID 0x0001 /* signaling channel ID */ |
| 88 | #define L2CAP_CLT_CID 0x0002 /* connectionless channel ID */ |
| 89 | /* 0x0003 - 0x003f Reserved */ |
| 90 | #define L2CAP_FIRST_CID 0x0040 /* dynamically alloc. (start) */ |
| 91 | #define L2CAP_LAST_CID 0xffff /* dynamically alloc. (end) */ |
| 92 | |
| 93 | /* L2CAP MTU */ |
| 94 | #define L2CAP_MTU_MINIMUM 48 |
| 95 | #define L2CAP_MTU_DEFAULT 672 |
| 96 | #define L2CAP_MTU_MAXIMUM 0xffff |
| 97 | |
| 98 | /* L2CAP flush and link timeouts */ |
| 99 | #define L2CAP_FLUSH_TIMO_DEFAULT 0xffff /* always retransmit */ |
| 100 | #define L2CAP_LINK_TIMO_DEFAULT 0xffff |
| 101 | |
| 102 | /* L2CAP Command Reject reasons */ |
| 103 | #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 |
| 104 | #define L2CAP_REJ_MTU_EXCEEDED 0x0001 |
| 105 | #define L2CAP_REJ_INVALID_CID 0x0002 |
| 106 | /* 0x0003 - 0xffff - reserved for future use */ |
| 107 | |
| 108 | /* Protocol/Service Multiplexer (PSM) values */ |
| 109 | #define L2CAP_PSM_ANY 0x0000 /* Any/Invalid PSM */ |
| 110 | #define L2CAP_PSM_SDP 0x0001 /* Service Discovery Protocol */ |
| 111 | #define L2CAP_PSM_RFCOMM 0x0003 /* RFCOMM protocol */ |
| 112 | #define L2CAP_PSM_TCP 0x0005 /* Telephony Control Protocol */ |
| 113 | #define L2CAP_PSM_TCS 0x0007 /* TCS cordless */ |
| 114 | #define L2CAP_PSM_BNEP 0x000f /* Bluetooth Network */ |
| 115 | /* Encapsulation Protocol*/ |
| 116 | #define L2CAP_PSM_HID_CNTL 0x0011 /* HID Control */ |
| 117 | #define L2CAP_PSM_HID_INTR 0x0013 /* HID Interrupt */ |
| 118 | #define L2CAP_PSM_ESDP 0x0015 /* Extended Service */ |
| 119 | /* Discovery Profile */ |
| 120 | #define L2CAP_PSM_AVCTP 0x0017 /* Audio/Visual Control */ |
| 121 | /* Transport Protocol */ |
| 122 | #define L2CAP_PSM_AVDTP 0x0019 /* Audio/Visual Distribution */ |
| 123 | /* Transport Protocol */ |
| 124 | #define L2CAP_PSM_UDI_C_PLANE 0x001d /* Unrestricted Digital */ |
| 125 | /* Information Profile */ |
| 126 | #define L2CAP_PSM_ATT 0x001f /* Attribute Protocol */ |
| 127 | #define L2CAP_PSM_3DSP 0x0021 /* 3D Synchronization Profile */ |
| 128 | #define L2CAP_PSM_IPSP 0x0023 /* Internet Protocol */ |
| 129 | /* Support Profile */ |
| 130 | /* 0x0025 - 0x1000 - reserved for future use */ |
| 131 | |
| 132 | #define L2CAP_PSM_INVALID(psm) (((psm) & 0x0101) != 0x0001) |
| 133 | |
| 134 | /* L2CAP Connection response command result codes */ |
| 135 | #define L2CAP_SUCCESS 0x0000 |
| 136 | #define L2CAP_PENDING 0x0001 |
| 137 | #define L2CAP_PSM_NOT_SUPPORTED 0x0002 |
| 138 | #define L2CAP_SECURITY_BLOCK 0x0003 |
| 139 | #define L2CAP_NO_RESOURCES 0x0004 |
| 140 | #define L2CAP_TIMEOUT 0xeeee |
| 141 | #define L2CAP_UNKNOWN 0xffff |
| 142 | /* 0x0005 - 0xffff - reserved for future use */ |
| 143 | |
| 144 | /* L2CAP Connection response status codes */ |
| 145 | #define L2CAP_NO_INFO 0x0000 |
| 146 | #define L2CAP_AUTH_PENDING 0x0001 |
| 147 | #define L2CAP_AUTZ_PENDING 0x0002 |
| 148 | /* 0x0003 - 0xffff - reserved for future use */ |
| 149 | |
| 150 | /* L2CAP Configuration response result codes */ |
| 151 | #define L2CAP_UNACCEPTABLE_PARAMS 0x0001 |
| 152 | #define L2CAP_REJECT 0x0002 |
| 153 | #define L2CAP_UNKNOWN_OPTION 0x0003 |
| 154 | /* 0x0003 - 0xffff - reserved for future use */ |
| 155 | |
| 156 | /* L2CAP Configuration options */ |
| 157 | #define L2CAP_OPT_CFLAG_BIT 0x0001 |
| 158 | #define L2CAP_OPT_CFLAG(flags) ((flags) & L2CAP_OPT_CFLAG_BIT) |
| 159 | #define L2CAP_OPT_HINT_BIT 0x80 |
| 160 | #define L2CAP_OPT_HINT(type) ((type) & L2CAP_OPT_HINT_BIT) |
| 161 | #define L2CAP_OPT_HINT_MASK 0x7f |
| 162 | #define L2CAP_OPT_MTU 0x01 |
| 163 | #define L2CAP_OPT_MTU_SIZE sizeof(uint16_t) |
| 164 | #define L2CAP_OPT_FLUSH_TIMO 0x02 |
| 165 | #define L2CAP_OPT_FLUSH_TIMO_SIZE sizeof(uint16_t) |
| 166 | #define L2CAP_OPT_QOS 0x03 |
| 167 | #define L2CAP_OPT_QOS_SIZE sizeof(l2cap_qos_t) |
| 168 | #define L2CAP_OPT_RFC 0x04 |
| 169 | #define L2CAP_OPT_RFC_SIZE sizeof(l2cap_rfc_t) |
| 170 | /* 0x05 - 0xff - reserved for future use */ |
| 171 | |
| 172 | /* L2CAP Information request type codes */ |
| 173 | #define L2CAP_CONNLESS_MTU 0x0001 |
| 174 | #define L2CAP_EXTENDED_FEATURES 0x0002 |
| 175 | #define L2CAP_FIXED_CHANNELS 0x0003 |
| 176 | /* 0x0004 - 0xffff - reserved for future use */ |
| 177 | |
| 178 | /* L2CAP Information response codes */ |
| 179 | #define L2CAP_NOT_SUPPORTED 0x0001 |
| 180 | /* 0x0002 - 0xffff - reserved for future use */ |
| 181 | |
| 182 | /* L2CAP Quality of Service option */ |
| 183 | typedef struct { |
| 184 | uint8_t flags; /* reserved for future use */ |
| 185 | uint8_t service_type; /* service type */ |
| 186 | uint32_t token_rate; /* bytes per second */ |
| 187 | uint32_t token_bucket_size; /* bytes */ |
| 188 | uint32_t peak_bandwidth; /* bytes per second */ |
| 189 | uint32_t latency; /* microseconds */ |
| 190 | uint32_t delay_variation; /* microseconds */ |
| 191 | } __packed l2cap_qos_t; |
| 192 | |
| 193 | /* L2CAP QoS type */ |
| 194 | #define L2CAP_QOS_NO_TRAFFIC 0x00 |
| 195 | #define L2CAP_QOS_BEST_EFFORT 0x01 /* (default) */ |
| 196 | #define L2CAP_QOS_GUARANTEED 0x02 |
| 197 | /* 0x03 - 0xff - reserved for future use */ |
| 198 | |
| 199 | /* L2CAP Retransmission & Flow Control option */ |
| 200 | typedef struct { |
| 201 | uint8_t mode; /* RFC mode */ |
| 202 | uint8_t window_size; /* bytes */ |
| 203 | uint8_t max_transmit; /* max retransmissions */ |
| 204 | uint16_t retransmit_timo; /* milliseconds */ |
| 205 | uint16_t monitor_timo; /* milliseconds */ |
| 206 | uint16_t max_pdu_size; /* bytes */ |
| 207 | } __packed l2cap_rfc_t; |
| 208 | |
| 209 | /* L2CAP RFC mode */ |
| 210 | #define L2CAP_RFC_BASIC 0x00 /* (default) */ |
| 211 | #define L2CAP_RFC_RETRANSMIT 0x01 |
| 212 | #define L2CAP_RFC_FLOW 0x02 |
| 213 | /* 0x03 - 0xff - reserved for future use */ |
| 214 | |
| 215 | /************************************************************************** |
| 216 | ************************************************************************** |
| 217 | ** Link level defines, headers and types |
| 218 | ************************************************************************** |
| 219 | **************************************************************************/ |
| 220 | |
| 221 | /* L2CAP header */ |
| 222 | typedef struct { |
| 223 | uint16_t length; /* payload size */ |
| 224 | uint16_t dcid; /* destination channel ID */ |
| 225 | } __packed l2cap_hdr_t; |
| 226 | |
| 227 | /* L2CAP ConnectionLess Traffic (dcid == L2CAP_CLT_CID) */ |
| 228 | typedef struct { |
| 229 | uint16_t psm; /* Protocol/Service Multiplexer */ |
| 230 | } __packed l2cap_clt_hdr_t; |
| 231 | |
| 232 | #define L2CAP_CLT_MTU_MAXIMUM \ |
| 233 | (L2CAP_MTU_MAXIMUM - sizeof(l2cap_clt_hdr_t)) |
| 234 | |
| 235 | /* L2CAP Command header (dcid == L2CAP_SIGNAL_CID) */ |
| 236 | typedef struct { |
| 237 | uint8_t code; /* command OpCode */ |
| 238 | uint8_t ident; /* identifier to match request and response */ |
| 239 | uint16_t length; /* command parameters length */ |
| 240 | } __packed l2cap_cmd_hdr_t; |
| 241 | |
| 242 | /* L2CAP Command Reject */ |
| 243 | #define L2CAP_COMMAND_REJ 0x01 |
| 244 | typedef struct { |
| 245 | uint16_t reason; /* reason to reject command */ |
| 246 | uint16_t data[2];/* optional data */ |
| 247 | } __packed l2cap_cmd_rej_cp; |
| 248 | |
| 249 | /* L2CAP Connection Request */ |
| 250 | #define L2CAP_CONNECT_REQ 0x02 |
| 251 | typedef struct { |
| 252 | uint16_t psm; /* Protocol/Service Multiplexer */ |
| 253 | uint16_t scid; /* source channel ID */ |
| 254 | } __packed l2cap_con_req_cp; |
| 255 | |
| 256 | /* L2CAP Connection Response */ |
| 257 | #define L2CAP_CONNECT_RSP 0x03 |
| 258 | typedef struct { |
| 259 | uint16_t dcid; /* destination channel ID */ |
| 260 | uint16_t scid; /* source channel ID */ |
| 261 | uint16_t result; /* 0x00 - success */ |
| 262 | uint16_t status; /* more info if result != 0x00 */ |
| 263 | } __packed l2cap_con_rsp_cp; |
| 264 | |
| 265 | /* L2CAP Configuration Request */ |
| 266 | #define L2CAP_CONFIG_REQ 0x04 |
| 267 | typedef struct { |
| 268 | uint16_t dcid; /* destination channel ID */ |
| 269 | uint16_t flags; /* flags */ |
| 270 | /* uint8_t options[] -- options */ |
| 271 | } __packed l2cap_cfg_req_cp; |
| 272 | |
| 273 | /* L2CAP Configuration Response */ |
| 274 | #define L2CAP_CONFIG_RSP 0x05 |
| 275 | typedef struct { |
| 276 | uint16_t scid; /* source channel ID */ |
| 277 | uint16_t flags; /* flags */ |
| 278 | uint16_t result; /* 0x00 - success */ |
| 279 | /* uint8_t options[] -- options */ |
| 280 | } __packed l2cap_cfg_rsp_cp; |
| 281 | |
| 282 | /* L2CAP configuration option */ |
| 283 | typedef struct { |
| 284 | uint8_t type; |
| 285 | uint8_t length; |
| 286 | /* uint8_t value[] -- option value (depends on type) */ |
| 287 | } __packed l2cap_cfg_opt_t; |
| 288 | |
| 289 | /* L2CAP configuration option value */ |
| 290 | typedef union { |
| 291 | uint16_t mtu; /* L2CAP_OPT_MTU */ |
| 292 | uint16_t flush_timo; /* L2CAP_OPT_FLUSH_TIMO */ |
| 293 | l2cap_qos_t qos; /* L2CAP_OPT_QOS */ |
| 294 | l2cap_rfc_t rfc; /* L2CAP_OPT_RFC */ |
| 295 | } l2cap_cfg_opt_val_t; |
| 296 | |
| 297 | /* L2CAP Disconnect Request */ |
| 298 | #define L2CAP_DISCONNECT_REQ 0x06 |
| 299 | typedef struct { |
| 300 | uint16_t dcid; /* destination channel ID */ |
| 301 | uint16_t scid; /* source channel ID */ |
| 302 | } __packed l2cap_discon_req_cp; |
| 303 | |
| 304 | /* L2CAP Disconnect Response */ |
| 305 | #define L2CAP_DISCONNECT_RSP 0x07 |
| 306 | typedef l2cap_discon_req_cp l2cap_discon_rsp_cp; |
| 307 | |
| 308 | /* L2CAP Echo Request */ |
| 309 | #define L2CAP_ECHO_REQ 0x08 |
| 310 | /* No command parameters, only optional data */ |
| 311 | |
| 312 | /* L2CAP Echo Response */ |
| 313 | #define L2CAP_ECHO_RSP 0x09 |
| 314 | #define L2CAP_MAX_ECHO_SIZE \ |
| 315 | (L2CAP_MTU_MAXIMUM - sizeof(l2cap_cmd_hdr_t)) |
| 316 | /* No command parameters, only optional data */ |
| 317 | |
| 318 | /* L2CAP Information Request */ |
| 319 | #define L2CAP_INFO_REQ 0x0a |
| 320 | typedef struct { |
| 321 | uint16_t type; /* requested information type */ |
| 322 | } __packed l2cap_info_req_cp; |
| 323 | |
| 324 | /* L2CAP Information Response */ |
| 325 | #define L2CAP_INFO_RSP 0x0b |
| 326 | typedef struct { |
| 327 | uint16_t type; /* requested information type */ |
| 328 | uint16_t result; /* 0x00 - success */ |
| 329 | /* uint8_t info[] -- info data (depends on type) |
| 330 | */ |
| 331 | } __packed l2cap_info_rsp_cp; |
| 332 | |
| 333 | |
| 334 | /************************************************************************** |
| 335 | ************************************************************************** |
| 336 | ** L2CAP Socket Definitions |
| 337 | ************************************************************************** |
| 338 | **************************************************************************/ |
| 339 | |
| 340 | /* Socket options */ |
| 341 | #define SO_L2CAP_IMTU 1 /* incoming MTU */ |
| 342 | #define SO_L2CAP_OMTU 2 /* outgoing MTU */ |
| 343 | #define SO_L2CAP_IQOS 3 /* incoming QoS */ |
| 344 | #define SO_L2CAP_OQOS 4 /* outgoing QoS */ |
| 345 | #define SO_L2CAP_FLUSH 5 /* flush timeout */ |
| 346 | #define SO_L2CAP_LM 6 /* link mode */ |
| 347 | |
| 348 | /* L2CAP link mode flags */ |
| 349 | #define L2CAP_LM_AUTH (1<<0) /* want authentication */ |
| 350 | #define L2CAP_LM_ENCRYPT (1<<1) /* want encryption */ |
| 351 | #define L2CAP_LM_SECURE (1<<2) /* want secured link */ |
| 352 | |
| 353 | #ifdef _KERNEL |
| 354 | |
| 355 | LIST_HEAD(l2cap_channel_list, l2cap_channel); |
| 356 | |
| 357 | /* global variables */ |
| 358 | extern struct l2cap_channel_list l2cap_active_list; |
| 359 | extern struct l2cap_channel_list l2cap_listen_list; |
| 360 | extern struct pool l2cap_pdu_pool; |
| 361 | extern struct pool l2cap_req_pool; |
| 362 | extern const l2cap_qos_t l2cap_default_qos; |
| 363 | |
| 364 | /* sysctl variables */ |
| 365 | extern int l2cap_response_timeout; |
| 366 | extern int l2cap_response_extended_timeout; |
| 367 | extern int l2cap_sendspace, l2cap_recvspace; |
| 368 | |
| 369 | /* |
| 370 | * L2CAP Channel |
| 371 | */ |
| 372 | struct l2cap_channel { |
| 373 | struct hci_link *lc_link; /* ACL connection (down) */ |
| 374 | uint16_t lc_state; /* channel state */ |
| 375 | uint16_t lc_flags; /* channel flags */ |
| 376 | uint8_t lc_ident; /* cached request id */ |
| 377 | |
| 378 | uint16_t lc_lcid; /* local channel ID */ |
| 379 | struct sockaddr_bt lc_laddr; /* local address */ |
| 380 | |
| 381 | uint16_t lc_rcid; /* remote channel ID */ |
| 382 | struct sockaddr_bt lc_raddr; /* remote address */ |
| 383 | |
| 384 | int lc_mode; /* link mode */ |
| 385 | uint16_t lc_imtu; /* incoming mtu */ |
| 386 | uint16_t lc_omtu; /* outgoing mtu */ |
| 387 | uint16_t lc_flush; /* flush timeout */ |
| 388 | l2cap_qos_t lc_iqos; /* incoming QoS flow control */ |
| 389 | l2cap_qos_t lc_oqos; /* outgoing Qos flow control */ |
| 390 | |
| 391 | uint8_t lc_pending; /* num of pending PDUs */ |
| 392 | MBUFQ_HEAD() lc_txq; /* transmit queue */ |
| 393 | |
| 394 | const struct btproto *lc_proto; /* upper layer callbacks */ |
| 395 | void *lc_upper; /* upper layer argument */ |
| 396 | |
| 397 | LIST_ENTRY(l2cap_channel)lc_ncid; /* next channel (ascending CID) */ |
| 398 | }; |
| 399 | |
| 400 | /* l2cap_channel state */ |
| 401 | #define L2CAP_CLOSED 0 /* closed */ |
| 402 | #define L2CAP_WAIT_SEND_CONNECT_REQ 1 /* waiting to send connect request */ |
| 403 | #define L2CAP_WAIT_RECV_CONNECT_RSP 2 /* waiting to recv connect response */ |
| 404 | #define L2CAP_WAIT_SEND_CONNECT_RSP 3 /* waiting to send connect response */ |
| 405 | #define L2CAP_WAIT_CONFIG 4 /* waiting for configuration */ |
| 406 | #define L2CAP_OPEN 5 /* user data transfer state */ |
| 407 | #define L2CAP_WAIT_DISCONNECT 6 /* have sent disconnect request */ |
| 408 | |
| 409 | /* l2cap_channel flags */ |
| 410 | #define L2CAP_SHUTDOWN (1<<0) /* channel is closing */ |
| 411 | #define L2CAP_WAIT_CONFIG_REQ (1<<1) /* waiting for config request */ |
| 412 | #define L2CAP_WAIT_CONFIG_RSP (1<<2) /* waiting for config response */ |
| 413 | |
| 414 | /* |
| 415 | * L2CAP Request |
| 416 | */ |
| 417 | struct l2cap_req { |
| 418 | struct hci_link *lr_link; /* ACL connection */ |
| 419 | struct l2cap_channel *lr_chan; /* channel pointer */ |
| 420 | uint8_t lr_code; /* request code */ |
| 421 | uint8_t lr_id; /* request id */ |
| 422 | callout_t lr_rtx; /* response timer */ |
| 423 | TAILQ_ENTRY(l2cap_req) lr_next; /* next request on link */ |
| 424 | }; |
| 425 | |
| 426 | /* |
| 427 | * L2CAP Protocol Data Unit |
| 428 | */ |
| 429 | struct l2cap_pdu { |
| 430 | struct l2cap_channel *lp_chan; /* PDU owner */ |
| 431 | MBUFQ_HEAD() lp_data; /* PDU data */ |
| 432 | TAILQ_ENTRY(l2cap_pdu) lp_next; /* next PDU on link */ |
| 433 | int lp_pending; /* # of fragments pending */ |
| 434 | }; |
| 435 | |
| 436 | /* |
| 437 | * L2CAP function prototypes |
| 438 | */ |
| 439 | |
| 440 | struct socket; |
| 441 | struct sockopt; |
| 442 | struct mbuf; |
| 443 | |
| 444 | /* l2cap_lower.c */ |
| 445 | void l2cap_close(struct l2cap_channel *, int); |
| 446 | void l2cap_recv_frame(struct mbuf *, struct hci_link *); |
| 447 | int l2cap_start(struct l2cap_channel *); |
| 448 | |
| 449 | /* l2cap_misc.c */ |
| 450 | int l2cap_setmode(struct l2cap_channel *); |
| 451 | int l2cap_cid_alloc(struct l2cap_channel *); |
| 452 | struct l2cap_channel *l2cap_cid_lookup(uint16_t); |
| 453 | int l2cap_request_alloc(struct l2cap_channel *, uint8_t); |
| 454 | struct l2cap_req *l2cap_request_lookup(struct hci_link *, uint8_t); |
| 455 | void l2cap_request_free(struct l2cap_req *); |
| 456 | void l2cap_rtx(void *); |
| 457 | void l2cap_init(void); |
| 458 | |
| 459 | /* l2cap_signal.c */ |
| 460 | void l2cap_recv_signal(struct mbuf *, struct hci_link *); |
| 461 | int l2cap_send_connect_req(struct l2cap_channel *); |
| 462 | int l2cap_send_config_req(struct l2cap_channel *); |
| 463 | int l2cap_send_disconnect_req(struct l2cap_channel *); |
| 464 | int l2cap_send_connect_rsp(struct hci_link *, uint8_t, uint16_t, uint16_t, uint16_t); |
| 465 | |
| 466 | /* l2cap_socket.c */ |
| 467 | int l2cap_ctloutput(int, struct socket *, struct sockopt *); |
| 468 | |
| 469 | /* l2cap_upper.c */ |
| 470 | int l2cap_attach_pcb(struct l2cap_channel **, const struct btproto *, void *); |
| 471 | int l2cap_bind_pcb(struct l2cap_channel *, struct sockaddr_bt *); |
| 472 | int l2cap_sockaddr_pcb(struct l2cap_channel *, struct sockaddr_bt *); |
| 473 | int l2cap_connect_pcb(struct l2cap_channel *, struct sockaddr_bt *); |
| 474 | int l2cap_peeraddr_pcb(struct l2cap_channel *, struct sockaddr_bt *); |
| 475 | int l2cap_disconnect_pcb(struct l2cap_channel *, int); |
| 476 | void l2cap_detach_pcb(struct l2cap_channel **); |
| 477 | int l2cap_listen_pcb(struct l2cap_channel *); |
| 478 | int l2cap_send_pcb(struct l2cap_channel *, struct mbuf *); |
| 479 | int l2cap_setopt(struct l2cap_channel *, const struct sockopt *); |
| 480 | int l2cap_getopt(struct l2cap_channel *, struct sockopt *); |
| 481 | |
| 482 | #endif /* _KERNEL */ |
| 483 | |
| 484 | #endif /* _NETBT_L2CAP_H_ */ |
| 485 | |