1 /* 2 * ng_l2cap_cmds.h 3 */ 4 5 /*- 6 * Copyright (c) Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: ng_l2cap_cmds.h,v 1.4 2003/04/01 18:15:26 max Exp $ 31 * $FreeBSD: src/sys/netgraph/bluetooth/l2cap/ng_l2cap_cmds.h,v 1.5 2005/01/07 01:45:43 imp Exp $ 32 * $DragonFly: src/sys/netgraph7/bluetooth/l2cap/ng_l2cap_cmds.h,v 1.2 2008/06/26 23:05:40 dillon Exp $ 33 */ 34 35 #ifndef _NETGRAPH_L2CAP_CMDS_H_ 36 #define _NETGRAPH_L2CAP_CMDS_H_ 37 38 /****************************************************************************** 39 ****************************************************************************** 40 ** L2CAP to L2CAP signaling command macros 41 ****************************************************************************** 42 ******************************************************************************/ 43 44 /* 45 * Note: All L2CAP implementations are required to support minimal signaling 46 * MTU of 48 bytes. In order to simplify things we will send one command 47 * per one L2CAP packet. Given evrything above we can assume that one 48 * signaling packet will fit into single mbuf. 49 */ 50 51 /* L2CAP_CommandRej */ 52 #define _ng_l2cap_cmd_rej(_m, _ident, _reason, _mtu, _scid, _dcid) \ 53 do { \ 54 struct _cmd_rej { \ 55 ng_l2cap_cmd_hdr_t hdr; \ 56 ng_l2cap_cmd_rej_cp param; \ 57 ng_l2cap_cmd_rej_data_t data; \ 58 } __attribute__ ((packed)) *c = NULL; \ 59 \ 60 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 61 if ((_m) == NULL) \ 62 break; \ 63 \ 64 c = mtod((_m), struct _cmd_rej *); \ 65 c->hdr.code = NG_L2CAP_CMD_REJ; \ 66 c->hdr.ident = (_ident); \ 67 c->hdr.length = sizeof(c->param); \ 68 \ 69 c->param.reason = htole16((_reason)); \ 70 \ 71 if ((_reason) == NG_L2CAP_REJ_MTU_EXCEEDED) { \ 72 c->data.mtu.mtu = htole16((_mtu)); \ 73 c->hdr.length += sizeof(c->data.mtu); \ 74 } else if ((_reason) == NG_L2CAP_REJ_INVALID_CID) { \ 75 c->data.cid.scid = htole16((_scid)); \ 76 c->data.cid.dcid = htole16((_dcid)); \ 77 c->hdr.length += sizeof(c->data.cid); \ 78 } \ 79 \ 80 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(c->hdr) + \ 81 c->hdr.length; \ 82 \ 83 c->hdr.length = htole16(c->hdr.length); \ 84 } while (0) 85 86 /* L2CAP_ConnectReq */ 87 #define _ng_l2cap_con_req(_m, _ident, _psm, _scid) \ 88 do { \ 89 struct _con_req { \ 90 ng_l2cap_cmd_hdr_t hdr; \ 91 ng_l2cap_con_req_cp param; \ 92 } __attribute__ ((packed)) *c = NULL; \ 93 \ 94 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 95 if ((_m) == NULL) \ 96 break; \ 97 \ 98 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 99 \ 100 c = mtod((_m), struct _con_req *); \ 101 c->hdr.code = NG_L2CAP_CON_REQ; \ 102 c->hdr.ident = (_ident); \ 103 c->hdr.length = htole16(sizeof(c->param)); \ 104 \ 105 c->param.psm = htole16((_psm)); \ 106 c->param.scid = htole16((_scid)); \ 107 } while (0) 108 109 /* L2CAP_ConnectRsp */ 110 #define _ng_l2cap_con_rsp(_m, _ident, _dcid, _scid, _result, _status) \ 111 do { \ 112 struct _con_rsp { \ 113 ng_l2cap_cmd_hdr_t hdr; \ 114 ng_l2cap_con_rsp_cp param; \ 115 } __attribute__ ((packed)) *c = NULL; \ 116 \ 117 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 118 if ((_m) == NULL) \ 119 break; \ 120 \ 121 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 122 \ 123 c = mtod((_m), struct _con_rsp *); \ 124 c->hdr.code = NG_L2CAP_CON_RSP; \ 125 c->hdr.ident = (_ident); \ 126 c->hdr.length = htole16(sizeof(c->param)); \ 127 \ 128 c->param.dcid = htole16((_dcid)); \ 129 c->param.scid = htole16((_scid)); \ 130 c->param.result = htole16((_result)); \ 131 c->param.status = htole16((_status)); \ 132 } while (0) 133 134 /* L2CAP_ConfigReq */ 135 #define _ng_l2cap_cfg_req(_m, _ident, _dcid, _flags, _data) \ 136 do { \ 137 struct _cfg_req { \ 138 ng_l2cap_cmd_hdr_t hdr; \ 139 ng_l2cap_cfg_req_cp param; \ 140 } __attribute__ ((packed)) *c = NULL; \ 141 \ 142 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 143 if ((_m) == NULL) { \ 144 NG_FREE_M((_data)); \ 145 break; \ 146 } \ 147 \ 148 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 149 \ 150 c = mtod((_m), struct _cfg_req *); \ 151 c->hdr.code = NG_L2CAP_CFG_REQ; \ 152 c->hdr.ident = (_ident); \ 153 c->hdr.length = sizeof(c->param); \ 154 \ 155 c->param.dcid = htole16((_dcid)); \ 156 c->param.flags = htole16((_flags)); \ 157 if ((_data) != NULL) { \ 158 int l = (_data)->m_pkthdr.len; \ 159 \ 160 m_cat((_m), (_data)); \ 161 c->hdr.length += l; \ 162 (_m)->m_pkthdr.len += l; \ 163 } \ 164 \ 165 c->hdr.length = htole16(c->hdr.length); \ 166 } while (0) 167 168 /* L2CAP_ConfigRsp */ 169 #define _ng_l2cap_cfg_rsp(_m, _ident, _scid, _flags, _result, _data) \ 170 do { \ 171 struct _cfg_rsp { \ 172 ng_l2cap_cmd_hdr_t hdr; \ 173 ng_l2cap_cfg_rsp_cp param; \ 174 } __attribute__ ((packed)) *c = NULL; \ 175 \ 176 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 177 if ((_m) == NULL) { \ 178 NG_FREE_M((_data)); \ 179 break; \ 180 } \ 181 \ 182 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 183 \ 184 c = mtod((_m), struct _cfg_rsp *); \ 185 c->hdr.code = NG_L2CAP_CFG_RSP; \ 186 c->hdr.ident = (_ident); \ 187 c->hdr.length = sizeof(c->param); \ 188 \ 189 c->param.scid = htole16((_scid)); \ 190 c->param.flags = htole16((_flags)); \ 191 c->param.result = htole16((_result)); \ 192 if ((_data) != NULL) { \ 193 int l = (_data)->m_pkthdr.len; \ 194 \ 195 m_cat((_m), (_data)); \ 196 c->hdr.length += l; \ 197 (_m)->m_pkthdr.len += l; \ 198 } \ 199 \ 200 c->hdr.length = htole16(c->hdr.length); \ 201 } while (0) 202 203 /* Build configuration options */ 204 #define _ng_l2cap_build_cfg_options(_m, _mtu, _flush_timo, _flow) \ 205 do { \ 206 u_int8_t *p = NULL; \ 207 \ 208 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 209 if ((_m) == NULL) \ 210 break; \ 211 \ 212 (_m)->m_pkthdr.len = (_m)->m_len = 0; \ 213 p = mtod((_m), u_int8_t *); \ 214 \ 215 if ((_mtu) != NULL) { \ 216 struct _cfg_opt_mtu { \ 217 ng_l2cap_cfg_opt_t hdr; \ 218 u_int16_t val; \ 219 } __attribute__ ((packed)) *o = NULL; \ 220 \ 221 o = (struct _cfg_opt_mtu *) p; \ 222 o->hdr.type = NG_L2CAP_OPT_MTU; \ 223 o->hdr.length = sizeof(o->val); \ 224 o->val = htole16(*(u_int16_t *)(_mtu)); \ 225 \ 226 (_m)->m_pkthdr.len += sizeof(*o); \ 227 p += sizeof(*o); \ 228 } \ 229 \ 230 if ((_flush_timo) != NULL) { \ 231 struct _cfg_opt_flush { \ 232 ng_l2cap_cfg_opt_t hdr; \ 233 u_int16_t val; \ 234 } __attribute__ ((packed)) *o = NULL; \ 235 \ 236 o = (struct _cfg_opt_flush *) p; \ 237 o->hdr.type = NG_L2CAP_OPT_FLUSH_TIMO; \ 238 o->hdr.length = sizeof(o->val); \ 239 o->val = htole16(*(u_int16_t *)(_flush_timo)); \ 240 \ 241 (_m)->m_pkthdr.len += sizeof(*o); \ 242 p += sizeof(*o); \ 243 } \ 244 \ 245 if ((_flow) != NULL) { \ 246 struct _cfg_opt_flow { \ 247 ng_l2cap_cfg_opt_t hdr; \ 248 ng_l2cap_flow_t val; \ 249 } __attribute__ ((packed)) *o = NULL; \ 250 \ 251 o = (struct _cfg_opt_flow *) p; \ 252 o->hdr.type = NG_L2CAP_OPT_QOS; \ 253 o->hdr.length = sizeof(o->val); \ 254 o->val.flags = ((ng_l2cap_flow_p)(_flow))->flags; \ 255 o->val.service_type = ((ng_l2cap_flow_p) \ 256 (_flow))->service_type; \ 257 o->val.token_rate = \ 258 htole32(((ng_l2cap_flow_p)(_flow))->token_rate);\ 259 o->val.token_bucket_size = \ 260 htole32(((ng_l2cap_flow_p) \ 261 (_flow))->token_bucket_size); \ 262 o->val.peak_bandwidth = \ 263 htole32(((ng_l2cap_flow_p) \ 264 (_flow))->peak_bandwidth); \ 265 o->val.latency = htole32(((ng_l2cap_flow_p) \ 266 (_flow))->latency); \ 267 o->val.delay_variation = \ 268 htole32(((ng_l2cap_flow_p) \ 269 (_flow))->delay_variation); \ 270 \ 271 (_m)->m_pkthdr.len += sizeof(*o); \ 272 } \ 273 \ 274 (_m)->m_len = (_m)->m_pkthdr.len; \ 275 } while (0) 276 277 /* L2CAP_DisconnectReq */ 278 #define _ng_l2cap_discon_req(_m, _ident, _dcid, _scid) \ 279 do { \ 280 struct _discon_req { \ 281 ng_l2cap_cmd_hdr_t hdr; \ 282 ng_l2cap_discon_req_cp param; \ 283 } __attribute__ ((packed)) *c = NULL; \ 284 \ 285 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 286 if ((_m) == NULL) \ 287 break; \ 288 \ 289 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 290 \ 291 c = mtod((_m), struct _discon_req *); \ 292 c->hdr.code = NG_L2CAP_DISCON_REQ; \ 293 c->hdr.ident = (_ident); \ 294 c->hdr.length = htole16(sizeof(c->param)); \ 295 \ 296 c->param.dcid = htole16((_dcid)); \ 297 c->param.scid = htole16((_scid)); \ 298 } while (0) 299 300 /* L2CA_DisconnectRsp */ 301 #define _ng_l2cap_discon_rsp(_m, _ident, _dcid, _scid) \ 302 do { \ 303 struct _discon_rsp { \ 304 ng_l2cap_cmd_hdr_t hdr; \ 305 ng_l2cap_discon_rsp_cp param; \ 306 } __attribute__ ((packed)) *c = NULL; \ 307 \ 308 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 309 if ((_m) == NULL) \ 310 break; \ 311 \ 312 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 313 \ 314 c = mtod((_m), struct _discon_rsp *); \ 315 c->hdr.code = NG_L2CAP_DISCON_RSP; \ 316 c->hdr.ident = (_ident); \ 317 c->hdr.length = htole16(sizeof(c->param)); \ 318 \ 319 c->param.dcid = htole16((_dcid)); \ 320 c->param.scid = htole16((_scid)); \ 321 } while (0) 322 323 /* L2CAP_EchoReq */ 324 #define _ng_l2cap_echo_req(_m, _ident, _data, _size) \ 325 do { \ 326 ng_l2cap_cmd_hdr_t *c = NULL; \ 327 \ 328 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 329 if ((_m) == NULL) \ 330 break; \ 331 \ 332 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 333 \ 334 c = mtod((_m), ng_l2cap_cmd_hdr_t *); \ 335 c->code = NG_L2CAP_ECHO_REQ; \ 336 c->ident = (_ident); \ 337 c->length = 0; \ 338 \ 339 if ((_data) != NULL) { \ 340 m_copyback((_m), sizeof(*c), (_size), (_data)); \ 341 c->length += (_size); \ 342 } \ 343 \ 344 c->length = htole16(c->length); \ 345 } while (0) 346 347 /* L2CAP_InfoReq */ 348 #define _ng_l2cap_info_req(_m, _ident, _type) \ 349 do { \ 350 struct _info_req { \ 351 ng_l2cap_cmd_hdr_t hdr; \ 352 ng_l2cap_info_req_cp param; \ 353 } __attribute__ ((packed)) *c = NULL; \ 354 \ 355 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 356 if ((_m) == NULL) \ 357 break; \ 358 \ 359 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 360 \ 361 c = mtod((_m), struct _info_req *); \ 362 c->hdr.code = NG_L2CAP_INFO_REQ; \ 363 c->hdr.ident = (_ident); \ 364 c->hdr.length = htole16(sizeof(c->param)); \ 365 \ 366 c->param.type = htole16((_type)); \ 367 } while (0) 368 369 /* L2CAP_InfoRsp */ 370 #define _ng_l2cap_info_rsp(_m, _ident, _type, _result, _mtu) \ 371 do { \ 372 struct _info_rsp { \ 373 ng_l2cap_cmd_hdr_t hdr; \ 374 ng_l2cap_info_rsp_cp param; \ 375 ng_l2cap_info_rsp_data_t data; \ 376 } __attribute__ ((packed)) *c = NULL; \ 377 \ 378 MGETHDR((_m), MB_DONTWAIT, MT_DATA); \ 379 if ((_m) == NULL) \ 380 break; \ 381 \ 382 c = mtod((_m), struct _info_rsp *); \ 383 c->hdr.code = NG_L2CAP_INFO_REQ; \ 384 c->hdr.ident = (_ident); \ 385 c->hdr.length = sizeof(c->param); \ 386 \ 387 c->param.type = htole16((_type)); \ 388 c->param.result = htole16((_result)); \ 389 \ 390 if ((_result) == NG_L2CAP_SUCCESS) { \ 391 switch ((_type)) { \ 392 case NG_L2CAP_CONNLESS_MTU: \ 393 c->data.mtu.mtu = htole16((_mtu)); \ 394 c->hdr.length += sizeof((c->data.mtu.mtu)); \ 395 break; \ 396 } \ 397 } \ 398 \ 399 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(c->hdr) + \ 400 c->hdr.length; \ 401 \ 402 c->hdr.length = htole16(c->hdr.length); \ 403 } while (0) 404 405 void ng_l2cap_con_wakeup (ng_l2cap_con_p); 406 void ng_l2cap_con_fail (ng_l2cap_con_p, u_int16_t); 407 void ng_l2cap_process_command_timeout (node_p, hook_p, void *, int); 408 409 #endif /* ndef _NETGRAPH_L2CAP_CMDS_H_ */ 410 411