1 /* 2 * ng_l2cap_cmds.h 3 * 4 * Copyright (c) Maksim Yevmenkin <m_evmenkin@yahoo.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $Id: ng_l2cap_cmds.h,v 1.9 2002/04/16 00:43:56 max Exp $ 29 * $FreeBSD$ 30 */ 31 32 #ifndef _NETGRAPH_L2CAP_CMDS_H_ 33 #define _NETGRAPH_L2CAP_CMDS_H_ 34 35 /****************************************************************************** 36 ****************************************************************************** 37 ** L2CAP to L2CAP signaling command macros 38 ****************************************************************************** 39 ******************************************************************************/ 40 41 /* 42 * Note: All L2CAP implementations are required to support minimal signaling 43 * MTU of 48 bytes. In order to simplify things we will send one command 44 * per one L2CAP packet. Given evrything above we can assume that one 45 * signaling packet will fit into single mbuf. 46 */ 47 48 /* L2CAP_CommandRej */ 49 #define _ng_l2cap_cmd_rej(_m, _ident, _reason, _mtu, _scid, _dcid) \ 50 do { \ 51 struct _cmd_rej { \ 52 ng_l2cap_cmd_hdr_t hdr; \ 53 ng_l2cap_cmd_rej_cp param; \ 54 ng_l2cap_cmd_rej_data_t data; \ 55 } __attribute__ ((packed)) *c = NULL; \ 56 \ 57 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 58 if ((_m) == NULL) \ 59 break; \ 60 \ 61 c = mtod((_m), struct _cmd_rej *); \ 62 c->hdr.code = NG_L2CAP_CMD_REJ; \ 63 c->hdr.ident = (_ident); \ 64 c->hdr.length = sizeof(c->param); \ 65 \ 66 c->param.reason = htole16((_reason)); \ 67 \ 68 if ((_reason) == NG_L2CAP_REJ_MTU_EXCEEDED) { \ 69 c->data.mtu.mtu = htole16((_mtu)); \ 70 c->hdr.length += sizeof(c->data.mtu); \ 71 } else if ((_reason) == NG_L2CAP_REJ_INVALID_CID) { \ 72 c->data.cid.scid = htole16((_scid)); \ 73 c->data.cid.dcid = htole16((_dcid)); \ 74 c->hdr.length += sizeof(c->data.cid); \ 75 } \ 76 \ 77 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(c->hdr) + \ 78 c->hdr.length; \ 79 \ 80 c->hdr.length = htole16(c->hdr.length); \ 81 } while (0) 82 83 /* L2CAP_ConnectReq */ 84 #define _ng_l2cap_con_req(_m, _ident, _psm, _scid) \ 85 do { \ 86 struct _con_req { \ 87 ng_l2cap_cmd_hdr_t hdr; \ 88 ng_l2cap_con_req_cp param; \ 89 } __attribute__ ((packed)) *c = NULL; \ 90 \ 91 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 92 if ((_m) == NULL) \ 93 break; \ 94 \ 95 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 96 \ 97 c = mtod((_m), struct _con_req *); \ 98 c->hdr.code = NG_L2CAP_CON_REQ; \ 99 c->hdr.ident = (_ident); \ 100 c->hdr.length = htole16(sizeof(c->param)); \ 101 \ 102 c->param.psm = htole16((_psm)); \ 103 c->param.scid = htole16((_scid)); \ 104 } while (0) 105 106 /* L2CAP_ConnectRsp */ 107 #define _ng_l2cap_con_rsp(_m, _ident, _dcid, _scid, _result, _status) \ 108 do { \ 109 struct _con_rsp { \ 110 ng_l2cap_cmd_hdr_t hdr; \ 111 ng_l2cap_con_rsp_cp param; \ 112 } __attribute__ ((packed)) *c = NULL; \ 113 \ 114 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 115 if ((_m) == NULL) \ 116 break; \ 117 \ 118 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 119 \ 120 c = mtod((_m), struct _con_rsp *); \ 121 c->hdr.code = NG_L2CAP_CON_RSP; \ 122 c->hdr.ident = (_ident); \ 123 c->hdr.length = htole16(sizeof(c->param)); \ 124 \ 125 c->param.dcid = htole16((_dcid)); \ 126 c->param.scid = htole16((_scid)); \ 127 c->param.result = htole16((_result)); \ 128 c->param.status = htole16((_status)); \ 129 } while (0) 130 131 /* L2CAP_ConfigReq */ 132 #define _ng_l2cap_cfg_req(_m, _ident, _dcid, _flags, _data) \ 133 do { \ 134 struct _cfg_req { \ 135 ng_l2cap_cmd_hdr_t hdr; \ 136 ng_l2cap_cfg_req_cp param; \ 137 } __attribute__ ((packed)) *c = NULL; \ 138 \ 139 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 140 if ((_m) == NULL) { \ 141 NG_FREE_M((_data)); \ 142 break; \ 143 } \ 144 \ 145 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 146 \ 147 c = mtod((_m), struct _cfg_req *); \ 148 c->hdr.code = NG_L2CAP_CFG_REQ; \ 149 c->hdr.ident = (_ident); \ 150 c->hdr.length = sizeof(c->param); \ 151 \ 152 c->param.dcid = htole16((_dcid)); \ 153 c->param.flags = htole16((_flags)); \ 154 if ((_data) != NULL) { \ 155 m_cat((_m), (_data)); \ 156 c->hdr.length += (_data)->m_pkthdr.len; \ 157 (_m)->m_pkthdr.len += (_data)->m_pkthdr.len; \ 158 } \ 159 \ 160 c->hdr.length = htole16(c->hdr.length); \ 161 } while (0) 162 163 /* L2CAP_ConfigRsp */ 164 #define _ng_l2cap_cfg_rsp(_m, _ident, _scid, _flags, _result, _data) \ 165 do { \ 166 struct _cfg_rsp { \ 167 ng_l2cap_cmd_hdr_t hdr; \ 168 ng_l2cap_cfg_rsp_cp param; \ 169 } __attribute__ ((packed)) *c = NULL; \ 170 \ 171 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 172 if ((_m) == NULL) { \ 173 NG_FREE_M((_data)); \ 174 break; \ 175 } \ 176 \ 177 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 178 \ 179 c = mtod((_m), struct _cfg_rsp *); \ 180 c->hdr.code = NG_L2CAP_CFG_RSP; \ 181 c->hdr.ident = (_ident); \ 182 c->hdr.length = sizeof(c->param); \ 183 \ 184 c->param.scid = htole16((_scid)); \ 185 c->param.flags = htole16((_flags)); \ 186 c->param.result = htole16((_result)); \ 187 if ((_data) != NULL) { \ 188 m_cat((_m), (_data)); \ 189 c->hdr.length += (_data)->m_pkthdr.len; \ 190 (_m)->m_pkthdr.len += (_data)->m_pkthdr.len; \ 191 } \ 192 \ 193 c->hdr.length = htole16(c->hdr.length); \ 194 } while (0) 195 196 /* Build configuration options */ 197 #define _ng_l2cap_build_cfg_options(_m, _mtu, _flush_timo, _flow) \ 198 do { \ 199 u_int8_t *p = NULL; \ 200 \ 201 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 202 if ((_m) == NULL) \ 203 break; \ 204 \ 205 (_m)->m_pkthdr.len = (_m)->m_len = 0; \ 206 p = mtod((_m), u_int8_t *); \ 207 \ 208 if ((_mtu) != NULL) { \ 209 struct _cfg_opt_mtu { \ 210 ng_l2cap_cfg_opt_t hdr; \ 211 u_int16_t val; \ 212 } __attribute__ ((packed)) *o = NULL; \ 213 \ 214 o = (struct _cfg_opt_mtu *) p; \ 215 o->hdr.type = NG_L2CAP_OPT_MTU; \ 216 o->hdr.length = sizeof(o->val); \ 217 o->val = htole16(*(u_int16_t *)(_mtu)); \ 218 \ 219 (_m)->m_pkthdr.len += sizeof(*o); \ 220 p += sizeof(*o); \ 221 } \ 222 \ 223 if ((_flush_timo) != NULL) { \ 224 struct _cfg_opt_flush { \ 225 ng_l2cap_cfg_opt_t hdr; \ 226 u_int16_t val; \ 227 } __attribute__ ((packed)) *o = NULL; \ 228 \ 229 o = (struct _cfg_opt_flush *) p; \ 230 o->hdr.type = NG_L2CAP_OPT_FLUSH_TIMO; \ 231 o->hdr.length = sizeof(o->val); \ 232 o->val = htole16(*(u_int16_t *)(_flush_timo)); \ 233 \ 234 (_m)->m_pkthdr.len += sizeof(*o); \ 235 p += sizeof(*o); \ 236 } \ 237 \ 238 if ((_flow) != NULL) { \ 239 struct _cfg_opt_flow { \ 240 ng_l2cap_cfg_opt_t hdr; \ 241 ng_l2cap_flow_t val; \ 242 } __attribute__ ((packed)) *o = NULL; \ 243 \ 244 o = (struct _cfg_opt_flow *) p; \ 245 o->hdr.type = NG_L2CAP_OPT_QOS; \ 246 o->hdr.length = sizeof(o->val); \ 247 o->val.flags = ((ng_l2cap_flow_p)(_flow))->flags; \ 248 o->val.service_type = ((ng_l2cap_flow_p) \ 249 (_flow))->service_type; \ 250 o->val.token_rate = \ 251 htole32(((ng_l2cap_flow_p)(_flow))->token_rate);\ 252 o->val.token_bucket_size = \ 253 htole32(((ng_l2cap_flow_p) \ 254 (_flow))->token_bucket_size); \ 255 o->val.peak_bandwidth = \ 256 htole32(((ng_l2cap_flow_p) \ 257 (_flow))->peak_bandwidth); \ 258 o->val.latency = htole32(((ng_l2cap_flow_p) \ 259 (_flow))->latency); \ 260 o->val.delay_variation = \ 261 htole32(((ng_l2cap_flow_p) \ 262 (_flow))->delay_variation); \ 263 \ 264 (_m)->m_pkthdr.len += sizeof(*o); \ 265 } \ 266 \ 267 (_m)->m_len = (_m)->m_pkthdr.len; \ 268 } while (0) 269 270 /* L2CAP_DisconnectReq */ 271 #define _ng_l2cap_discon_req(_m, _ident, _dcid, _scid) \ 272 do { \ 273 struct _discon_req { \ 274 ng_l2cap_cmd_hdr_t hdr; \ 275 ng_l2cap_discon_req_cp param; \ 276 } __attribute__ ((packed)) *c = NULL; \ 277 \ 278 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 279 if ((_m) == NULL) \ 280 break; \ 281 \ 282 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 283 \ 284 c = mtod((_m), struct _discon_req *); \ 285 c->hdr.code = NG_L2CAP_DISCON_REQ; \ 286 c->hdr.ident = (_ident); \ 287 c->hdr.length = htole16(sizeof(c->param)); \ 288 \ 289 c->param.dcid = htole16((_dcid)); \ 290 c->param.scid = htole16((_scid)); \ 291 } while (0) 292 293 /* L2CA_DisconnectRsp */ 294 #define _ng_l2cap_discon_rsp(_m, _ident, _dcid, _scid) \ 295 do { \ 296 struct _discon_rsp { \ 297 ng_l2cap_cmd_hdr_t hdr; \ 298 ng_l2cap_discon_rsp_cp param; \ 299 } __attribute__ ((packed)) *c = NULL; \ 300 \ 301 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 302 if ((_m) == NULL) \ 303 break; \ 304 \ 305 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 306 \ 307 c = mtod((_m), struct _discon_rsp *); \ 308 c->hdr.code = NG_L2CAP_DISCON_RSP; \ 309 c->hdr.ident = (_ident); \ 310 c->hdr.length = htole16(sizeof(c->param)); \ 311 \ 312 c->param.dcid = htole16((_dcid)); \ 313 c->param.scid = htole16((_scid)); \ 314 } while (0) 315 316 /* L2CAP_EchoReq */ 317 #define _ng_l2cap_echo_req(_m, _ident, _data, _size) \ 318 do { \ 319 ng_l2cap_cmd_hdr_t *c = NULL; \ 320 \ 321 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 322 if ((_m) == NULL) \ 323 break; \ 324 \ 325 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 326 \ 327 c = mtod((_m), ng_l2cap_cmd_hdr_t *); \ 328 c->code = NG_L2CAP_ECHO_REQ; \ 329 c->ident = (_ident); \ 330 c->length = 0; \ 331 \ 332 if ((_data) != NULL) { \ 333 m_copyback((_m), sizeof(*c), (_size), (_data)); \ 334 c->length += (_size); \ 335 } \ 336 \ 337 c->length = htole16(c->length); \ 338 } while (0) 339 340 /* L2CAP_InfoReq */ 341 #define _ng_l2cap_info_req(_m, _ident, _type) \ 342 do { \ 343 struct _info_req { \ 344 ng_l2cap_cmd_hdr_t hdr; \ 345 ng_l2cap_info_req_cp param; \ 346 } __attribute__ ((packed)) *c = NULL; \ 347 \ 348 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 349 if ((_m) == NULL) \ 350 break; \ 351 \ 352 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(*c); \ 353 \ 354 c = mtod((_m), struct _info_req *); \ 355 c->hdr.code = NG_L2CAP_INFO_REQ; \ 356 c->hdr.ident = (_ident); \ 357 c->hdr.length = htole16(sizeof(c->param)); \ 358 \ 359 c->param.type = htole16((_type)); \ 360 } while (0) 361 362 /* L2CAP_InfoRsp */ 363 #define _ng_l2cap_info_rsp(_m, _ident, _type, _result, _mtu) \ 364 do { \ 365 struct _info_rsp { \ 366 ng_l2cap_cmd_hdr_t hdr; \ 367 ng_l2cap_info_rsp_cp param; \ 368 ng_l2cap_info_rsp_data_t data; \ 369 } __attribute__ ((packed)) *c = NULL; \ 370 \ 371 MGETHDR((_m), M_DONTWAIT, MT_DATA); \ 372 if ((_m) == NULL) \ 373 break; \ 374 \ 375 c = mtod((_m), struct _info_rsp *); \ 376 c->hdr.code = NG_L2CAP_INFO_REQ; \ 377 c->hdr.ident = (_ident); \ 378 c->hdr.length = sizeof(c->param); \ 379 \ 380 c->param.type = htole16((_type)); \ 381 c->param.result = htole16((_result)); \ 382 \ 383 if ((_result) == NG_L2CAP_SUCCESS) { \ 384 switch ((_type)) { \ 385 case NG_L2CAP_CONNLESS_MTU: \ 386 c->data.mtu.mtu = htole16((_mtu)); \ 387 c->hdr.length += sizeof((c->data.mtu.mtu)); \ 388 break; \ 389 } \ 390 } \ 391 \ 392 (_m)->m_pkthdr.len = (_m)->m_len = sizeof(c->hdr) + \ 393 c->hdr.length; \ 394 \ 395 c->hdr.length = htole16(c->hdr.length); \ 396 } while (0) 397 398 void ng_l2cap_con_wakeup (ng_l2cap_con_p); 399 void ng_l2cap_con_fail (ng_l2cap_con_p, u_int16_t); 400 void ng_l2cap_process_command_timeout (node_p, hook_p, void *, int); 401 402 #endif /* ndef _NETGRAPH_L2CAP_CMDS_H_ */ 403 404