rose_etsi_mwi.c 24.5 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686
/*
 * libpri: An implementation of Primary Rate ISDN
 *
 * Copyright (C) 2010 Digium, Inc.
 *
 * Richard Mudgett <rmudgett@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2 as published by the
 * Free Software Foundation. See the LICENSE file included with
 * this program for more details.
 *
 * In addition, when this program is distributed with Asterisk in
 * any form that would qualify as a 'combined work' or as a
 * 'derivative work' (but not mere aggregation), you can redistribute
 * and/or modify the combination under the terms of the license
 * provided with that copy of Asterisk, instead of the license
 * terms granted here.
 */

/*!
 * \file
 * \brief ROSE Message Waiting Indication (MWI) operations
 *
 * Message Waiting Indication (MWI) supplementary service EN 300 745-1
 *
 * \author Richard Mudgett <rmudgett@digium.com>
 */


#include "compat.h"
#include "libpri.h"
#include "pri_internal.h"
#include "rose.h"
#include "rose_internal.h"
#include "asn1.h"


/* ------------------------------------------------------------------- */

/*!
 * \internal
 * \brief Encode the MessageID type.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param pos Starting position to encode ASN.1 component.
 * \param end End of ASN.1 encoding data buffer.
 * \param msg_id
 *
 * \retval Start of the next ASN.1 component to encode on success.
 * \retval NULL on error.
 */
static unsigned char *rose_enc_etsi_message_id(struct pri *ctrl, unsigned char *pos,
	unsigned char *end, const struct roseEtsiMessageID *msg_id)
{
	unsigned char *seq_len;

	ASN1_CONSTRUCTED_BEGIN(seq_len, pos, end, ASN1_TAG_SEQUENCE);

	ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_INTEGER, msg_id->reference_number));
	ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_ENUMERATED, msg_id->status));

	ASN1_CONSTRUCTED_END(seq_len, pos, end);

	return pos;
}

/*!
 * \brief Encode the MWIActivate invoke facility ie arguments.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param pos Starting position to encode ASN.1 component.
 * \param end End of ASN.1 encoding data buffer.
 * \param args Arguments to encode in the buffer.
 *
 * \retval Start of the next ASN.1 component to encode on success.
 * \retval NULL on error.
 */
unsigned char *rose_enc_etsi_MWIActivate_ARG(struct pri *ctrl, unsigned char *pos,
	unsigned char *end, const union rose_msg_invoke_args *args)
{
	const struct roseEtsiMWIActivate_ARG *mwi_activate;
	unsigned char *seq_len;
	unsigned char *explicit_len;

	ASN1_CONSTRUCTED_BEGIN(seq_len, pos, end, ASN1_TAG_SEQUENCE);

	mwi_activate = &args->etsi.MWIActivate;
	ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
		&mwi_activate->receiving_user_number));
	ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_ENUMERATED,
		mwi_activate->basic_service));
	if (mwi_activate->controlling_user_number.length) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 1);
		ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
			&mwi_activate->controlling_user_number));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_activate->number_of_messages_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 2);
		ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_INTEGER,
			mwi_activate->number_of_messages));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_activate->controlling_user_provided_number.length) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 3);
		ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
			&mwi_activate->controlling_user_provided_number));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_activate->time_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 4);
		ASN1_CALL(pos, asn1_enc_string_max(pos, end, ASN1_TYPE_GENERALIZED_TIME,
			mwi_activate->time.str, sizeof(mwi_activate->time.str) - 1));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_activate->message_id_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 5);
		ASN1_CALL(pos, rose_enc_etsi_message_id(ctrl, pos, end,
			&mwi_activate->message_id));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_activate->mode_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 6);
		ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_ENUMERATED,
			mwi_activate->mode));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}

	ASN1_CONSTRUCTED_END(seq_len, pos, end);

	return pos;
}

/*!
 * \brief Encode the MWIDeactivate invoke facility ie arguments.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param pos Starting position to encode ASN.1 component.
 * \param end End of ASN.1 encoding data buffer.
 * \param args Arguments to encode in the buffer.
 *
 * \retval Start of the next ASN.1 component to encode on success.
 * \retval NULL on error.
 */
unsigned char *rose_enc_etsi_MWIDeactivate_ARG(struct pri *ctrl, unsigned char *pos,
	unsigned char *end, const union rose_msg_invoke_args *args)
{
	const struct roseEtsiMWIDeactivate_ARG *mwi_deactivate;
	unsigned char *seq_len;

	ASN1_CONSTRUCTED_BEGIN(seq_len, pos, end, ASN1_TAG_SEQUENCE);

	mwi_deactivate = &args->etsi.MWIDeactivate;
	ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
		&mwi_deactivate->receiving_user_number));
	ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_ENUMERATED,
		mwi_deactivate->basic_service));
	if (mwi_deactivate->controlling_user_number.length) {
		ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
			&mwi_deactivate->controlling_user_number));
	}
	if (mwi_deactivate->mode_present) {
		ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_ENUMERATED,
			mwi_deactivate->mode));
	}

	ASN1_CONSTRUCTED_END(seq_len, pos, end);

	return pos;
}

/*!
 * \brief Encode the MWIIndicate invoke facility ie arguments.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param pos Starting position to encode ASN.1 component.
 * \param end End of ASN.1 encoding data buffer.
 * \param args Arguments to encode in the buffer.
 *
 * \retval Start of the next ASN.1 component to encode on success.
 * \retval NULL on error.
 */
unsigned char *rose_enc_etsi_MWIIndicate_ARG(struct pri *ctrl, unsigned char *pos,
	unsigned char *end, const union rose_msg_invoke_args *args)
{
	const struct roseEtsiMWIIndicate_ARG *mwi_indicate;
	unsigned char *seq_len;
	unsigned char *explicit_len;

	ASN1_CONSTRUCTED_BEGIN(seq_len, pos, end, ASN1_TAG_SEQUENCE);

	mwi_indicate = &args->etsi.MWIIndicate;
	if (mwi_indicate->controlling_user_number.length) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 1);
		ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
			&mwi_indicate->controlling_user_number));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_indicate->basic_service_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 2);
		ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_ENUMERATED,
			mwi_indicate->basic_service));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_indicate->number_of_messages_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 3);
		ASN1_CALL(pos, asn1_enc_int(pos, end, ASN1_TYPE_INTEGER,
			mwi_indicate->number_of_messages));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_indicate->controlling_user_provided_number.length) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 4);
		ASN1_CALL(pos, rose_enc_PartyNumber(ctrl, pos, end,
			&mwi_indicate->controlling_user_provided_number));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_indicate->time_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 5);
		ASN1_CALL(pos, asn1_enc_string_max(pos, end, ASN1_TYPE_GENERALIZED_TIME,
			mwi_indicate->time.str, sizeof(mwi_indicate->time.str) - 1));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}
	if (mwi_indicate->message_id_present) {
		/* EXPLICIT tag */
		ASN1_CONSTRUCTED_BEGIN(explicit_len, pos, end, ASN1_CLASS_CONTEXT_SPECIFIC | 6);
		ASN1_CALL(pos, rose_enc_etsi_message_id(ctrl, pos, end,
			&mwi_indicate->message_id));
		ASN1_CONSTRUCTED_END(explicit_len, pos, end);
	}

	ASN1_CONSTRUCTED_END(seq_len, pos, end);

	return pos;
}

/*!
 * \internal
 * \brief Decode the MessageID argument parameters.
 *
 * \param ctrl D channel controller for any diagnostic messages.
 * \param name Field name
 * \param tag Component tag that identified this production.
 * \param pos Starting position of the ASN.1 component length.
 * \param end End of ASN.1 decoding data buffer.
 * \param msg_id Parameter storage to fill.
 *
 * \retval Start of the next ASN.1 component on success.
 * \retval NULL on error.
 */
static const unsigned char *rose_dec_etsi_message_id(struct pri *ctrl, const char *name,
	unsigned tag, const unsigned char *pos, const unsigned char *end,
	struct roseEtsiMessageID *msg_id)
{
	int32_t value;
	int length;
	int seq_offset;
	const unsigned char *seq_end;

	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TAG_SEQUENCE);
	if (ctrl->debug & PRI_DEBUG_APDU) {
		pri_message(ctrl, "  %s MessageID %s\n", name, asn1_tag2str(tag));
	}
	ASN1_CALL(pos, asn1_dec_length(pos, end, &length));
	ASN1_END_SETUP(seq_end, seq_offset, length, pos, end);

	ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_INTEGER);
	ASN1_CALL(pos, asn1_dec_int(ctrl, "messageRef", tag, pos, seq_end, &value));
	msg_id->reference_number = value;

	ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_ENUMERATED);
	ASN1_CALL(pos, asn1_dec_int(ctrl, "status", tag, pos, seq_end, &value));
	msg_id->status = value;

	ASN1_END_FIXUP(ctrl, pos, seq_offset, seq_end, end);

	return pos;
}

/*!
 * \brief Decode the MWIActivate invoke argument parameters.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param tag Component tag that identified this structure.
 * \param pos Starting position of the ASN.1 component length.
 * \param end End of ASN.1 decoding data buffer.
 * \param args Arguments to fill in from the decoded buffer.
 *
 * \retval Start of the next ASN.1 component on success.
 * \retval NULL on error.
 */
const unsigned char *rose_dec_etsi_MWIActivate_ARG(struct pri *ctrl, unsigned tag,
	const unsigned char *pos, const unsigned char *end,
	union rose_msg_invoke_args *args)
{
	int32_t value;
	size_t str_len;
	int length;
	int seq_offset;
	int explicit_offset;
	const unsigned char *explicit_end;
	const unsigned char *seq_end;
	const unsigned char *save_pos;
	struct roseEtsiMWIActivate_ARG *mwi_activate;

	mwi_activate = &args->etsi.MWIActivate;

	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TAG_SEQUENCE);
	if (ctrl->debug & PRI_DEBUG_APDU) {
		pri_message(ctrl, "  MWIActivate %s\n", asn1_tag2str(tag));
	}
	ASN1_CALL(pos, asn1_dec_length(pos, end, &length));
	ASN1_END_SETUP(seq_end, seq_offset, length, pos, end);

	ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
	ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "receivingUserNr", tag, pos, seq_end,
		&mwi_activate->receiving_user_number));

	ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_ENUMERATED);
	ASN1_CALL(pos, asn1_dec_int(ctrl, "basicService", tag, pos, seq_end, &value));
	mwi_activate->basic_service = value;

	/*
	 * A sequence specifies an ordered list of component types.
	 * However, for simplicity we are not checking the order of
	 * the remaining optional components.
	 */
	mwi_activate->controlling_user_number.length = 0;
	mwi_activate->number_of_messages_present = 0;
	mwi_activate->controlling_user_provided_number.length = 0;
	mwi_activate->time_present = 0;
	mwi_activate->message_id_present = 0;
	mwi_activate->mode_present = 0;
	while (pos < seq_end && *pos != ASN1_INDEF_TERM) {
		save_pos = pos;
		ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
		switch (tag) {
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 1:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "controllingUserNr", tag, pos,
				explicit_end, &mwi_activate->controlling_user_number));

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 2:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_INTEGER);
			ASN1_CALL(pos, asn1_dec_int(ctrl, "numberOfMessages", tag, pos, explicit_end,
				&value));
			mwi_activate->number_of_messages = value;
			mwi_activate->number_of_messages_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 3:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "controllingUserProvidedNr", tag,
				pos, explicit_end, &mwi_activate->controlling_user_provided_number));

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 4:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CHECK_TAG(ctrl, tag & ~ASN1_PC_MASK, tag, ASN1_TYPE_GENERALIZED_TIME);
			ASN1_CALL(pos, asn1_dec_string_max(ctrl, "time", tag, pos, explicit_end,
				sizeof(mwi_activate->time.str), mwi_activate->time.str, &str_len));
			mwi_activate->time_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 5:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CALL(pos, rose_dec_etsi_message_id(ctrl, "messageId", tag, pos,
				explicit_end, &mwi_activate->message_id));
			mwi_activate->message_id_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 6:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_ENUMERATED);
			ASN1_CALL(pos, asn1_dec_int(ctrl, "mode", tag, pos, explicit_end, &value));
			mwi_activate->mode = value;
			mwi_activate->mode_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		default:
			pos = save_pos;
			goto cancel_options;
		}
	}
cancel_options:;

	ASN1_END_FIXUP(ctrl, pos, seq_offset, seq_end, end);

	return pos;
}

/*!
 * \brief Decode the MWIDeactivate invoke argument parameters.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param tag Component tag that identified this structure.
 * \param pos Starting position of the ASN.1 component length.
 * \param end End of ASN.1 decoding data buffer.
 * \param args Arguments to fill in from the decoded buffer.
 *
 * \retval Start of the next ASN.1 component on success.
 * \retval NULL on error.
 */
const unsigned char *rose_dec_etsi_MWIDeactivate_ARG(struct pri *ctrl, unsigned tag,
	const unsigned char *pos, const unsigned char *end,
	union rose_msg_invoke_args *args)
{
	int32_t value;
	int length;
	int seq_offset;
	const unsigned char *seq_end;
	struct roseEtsiMWIDeactivate_ARG *mwi_deactivate;

	mwi_deactivate = &args->etsi.MWIDeactivate;

	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TAG_SEQUENCE);
	if (ctrl->debug & PRI_DEBUG_APDU) {
		pri_message(ctrl, "  MWIDeactivate %s\n", asn1_tag2str(tag));
	}
	ASN1_CALL(pos, asn1_dec_length(pos, end, &length));
	ASN1_END_SETUP(seq_end, seq_offset, length, pos, end);

	ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
	ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "receivingUserNr", tag, pos, seq_end,
		&mwi_deactivate->receiving_user_number));

	ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_ENUMERATED);
	ASN1_CALL(pos, asn1_dec_int(ctrl, "basicService", tag, pos, seq_end, &value));
	mwi_deactivate->basic_service = value;

	/*
	 * A sequence specifies an ordered list of component types.
	 * However, for simplicity we are not checking the order of
	 * the remaining optional components.
	 */
	mwi_deactivate->controlling_user_number.length = 0;
	mwi_deactivate->mode_present = 0;
	while (pos < seq_end && *pos != ASN1_INDEF_TERM) {
		ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
		switch (tag) {
		default:
			ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "controllingUserNr", tag, pos,
				seq_end, &mwi_deactivate->controlling_user_number));
			break;
		case ASN1_TYPE_ENUMERATED:
			ASN1_CALL(pos, asn1_dec_int(ctrl, "mode", tag, pos, seq_end, &value));
			mwi_deactivate->mode = value;
			mwi_deactivate->mode_present = 1;
			break;
		}
	}

	ASN1_END_FIXUP(ctrl, pos, seq_offset, seq_end, end);

	return pos;
}

/*!
 * \brief Decode the MWIIndicate invoke argument parameters.
 *
 * \param ctrl D channel controller for diagnostic messages or global options.
 * \param tag Component tag that identified this structure.
 * \param pos Starting position of the ASN.1 component length.
 * \param end End of ASN.1 decoding data buffer.
 * \param args Arguments to fill in from the decoded buffer.
 *
 * \retval Start of the next ASN.1 component on success.
 * \retval NULL on error.
 */
const unsigned char *rose_dec_etsi_MWIIndicate_ARG(struct pri *ctrl, unsigned tag,
	const unsigned char *pos, const unsigned char *end,
	union rose_msg_invoke_args *args)
{
	int32_t value;
	size_t str_len;
	int length;
	int seq_offset;
	int explicit_offset;
	const unsigned char *explicit_end;
	const unsigned char *seq_end;
	const unsigned char *save_pos;
	struct roseEtsiMWIIndicate_ARG *mwi_indicate;

	mwi_indicate = &args->etsi.MWIIndicate;

	ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TAG_SEQUENCE);
	if (ctrl->debug & PRI_DEBUG_APDU) {
		pri_message(ctrl, "  MWIIndicate %s\n", asn1_tag2str(tag));
	}
	ASN1_CALL(pos, asn1_dec_length(pos, end, &length));
	ASN1_END_SETUP(seq_end, seq_offset, length, pos, end);

	/*
	 * A sequence specifies an ordered list of component types.
	 * However, for simplicity we are not checking the order of
	 * the remaining optional components.
	 */
	mwi_indicate->controlling_user_number.length = 0;
	mwi_indicate->basic_service_present = 0;
	mwi_indicate->number_of_messages_present = 0;
	mwi_indicate->controlling_user_provided_number.length = 0;
	mwi_indicate->time_present = 0;
	mwi_indicate->message_id_present = 0;
	while (pos < seq_end && *pos != ASN1_INDEF_TERM) {
		save_pos = pos;
		ASN1_CALL(pos, asn1_dec_tag(pos, seq_end, &tag));
		switch (tag) {
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 1:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "controllingUserNr", tag, pos,
				explicit_end, &mwi_indicate->controlling_user_number));

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 2:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_ENUMERATED);
			ASN1_CALL(pos, asn1_dec_int(ctrl, "basicService", tag, pos, explicit_end,
				&value));
			mwi_indicate->basic_service = value;
			mwi_indicate->basic_service_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 3:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CHECK_TAG(ctrl, tag, tag, ASN1_TYPE_INTEGER);
			ASN1_CALL(pos, asn1_dec_int(ctrl, "numberOfMessages", tag, pos, explicit_end,
				&value));
			mwi_indicate->number_of_messages = value;
			mwi_indicate->number_of_messages_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 4:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CALL(pos, rose_dec_PartyNumber(ctrl, "controllingUserProvidedNr", tag,
				pos, explicit_end, &mwi_indicate->controlling_user_provided_number));

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 5:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CHECK_TAG(ctrl, tag & ~ASN1_PC_MASK, tag, ASN1_TYPE_GENERALIZED_TIME);
			ASN1_CALL(pos, asn1_dec_string_max(ctrl, "time", tag, pos, explicit_end,
				sizeof(mwi_indicate->time.str), mwi_indicate->time.str, &str_len));
			mwi_indicate->time_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		case ASN1_CLASS_CONTEXT_SPECIFIC | ASN1_PC_CONSTRUCTED | 6:
			/* Remove EXPLICIT tag */
			if (ctrl->debug & PRI_DEBUG_APDU) {
				pri_message(ctrl, "  Explicit %s\n", asn1_tag2str(tag));
			}
			ASN1_CALL(pos, asn1_dec_length(pos, seq_end, &length));
			ASN1_END_SETUP(explicit_end, explicit_offset, length, pos, seq_end);

			ASN1_CALL(pos, asn1_dec_tag(pos, explicit_end, &tag));
			ASN1_CALL(pos, rose_dec_etsi_message_id(ctrl, "messageId", tag, pos,
				explicit_end, &mwi_indicate->message_id));
			mwi_indicate->message_id_present = 1;

			ASN1_END_FIXUP(ctrl, pos, explicit_offset, explicit_end, seq_end);
			break;
		default:
			pos = save_pos;
			goto cancel_options;
		}
	}
cancel_options:;

	ASN1_END_FIXUP(ctrl, pos, seq_offset, seq_end, end);

	return pos;
}


/* ------------------------------------------------------------------- */
/* end rose_etsi_mwi.c */