usr.sbin/usbconfig/usbconfig.c

   1 /* $FreeBSD$ */
   2 /*-
   3  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   4  *
   5  * Copyright (c) 2008-2009 Hans Petter Selasky. 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
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <stdint.h>
  32 #include <err.h>
  33 #include <string.h>
  34 #include <pwd.h>
  35 #include <grp.h>
  36 #include <errno.h>
  37 #include <ctype.h>
  38 #include <sys/types.h>
  39
  40 #include <libusb20_desc.h>
  41 #include <libusb20.h>
  42
  43 #include "dump.h"
  44
  45 struct options {
  46         const char *quirkname;
  47         void   *buffer;
  48         int template;
  49         gid_t   gid;
  50         uid_t   uid;
  51         mode_t  mode;
  52         uint32_t got_any;
  53         struct LIBUSB20_CONTROL_SETUP_DECODED setup;
  54         uint16_t bus;
  55         uint16_t addr;
  56         uint16_t iface;
  57         uint16_t vid;
  58         uint16_t pid;
  59         uint16_t lo_rev;                /* inclusive */
  60         uint16_t hi_rev;                /* inclusive */
  61         uint8_t string_index;
  62         uint8_t config_index;
  63         uint8_t alt_index;
  64         uint8_t got_list:1;
  65         uint8_t got_bus:1;
  66         uint8_t got_addr:1;
  67         uint8_t got_iface:1;
  68         uint8_t got_set_config:1;
  69         uint8_t got_set_alt:1;
  70         uint8_t got_set_template:1;
  71         uint8_t got_get_template:1;
  72         uint8_t got_suspend:1;
  73         uint8_t got_resume:1;
  74         uint8_t got_reset:1;
  75         uint8_t got_power_off:1;
  76         uint8_t got_power_save:1;
  77         uint8_t got_power_on:1;
  78         uint8_t got_dump_device_quirks:1;
  79         uint8_t got_dump_quirk_names:1;
  80         uint8_t got_dump_device_desc:1;
  81         uint8_t got_dump_curr_config:1;
  82         uint8_t got_dump_all_config:1;
  83         uint8_t got_dump_info:1;
  84         uint8_t got_show_iface_driver:1;
  85         uint8_t got_remove_device_quirk:1;
  86         uint8_t got_add_device_quirk:1;
  87         uint8_t got_remove_quirk:1;
  88         uint8_t got_add_quirk:1;
  89         uint8_t got_dump_string:1;
  90         uint8_t got_do_request:1;
  91 };
  92
  93 struct token {
  94         const char *name;
  95         uint8_t value;
  96         uint8_t narg;
  97 };
  98
  99 enum {
 100         T_UNIT,
 101         T_ADDR,
 102         T_UGEN,
 103         T_IFACE,
 104         T_SET_CONFIG,
 105         T_SET_ALT,
 106         T_SET_TEMPLATE,
 107         T_GET_TEMPLATE,
 108         T_ADD_DEVICE_QUIRK,
 109         T_REMOVE_DEVICE_QUIRK,
 110         T_ADD_QUIRK,
 111         T_REMOVE_QUIRK,
 112         T_SHOW_IFACE_DRIVER,
 113         T_DUMP_QUIRK_NAMES,
 114         T_DUMP_DEVICE_QUIRKS,
 115         T_DUMP_DEVICE_DESC,
 116         T_DUMP_CURR_CONFIG_DESC,
 117         T_DUMP_ALL_CONFIG_DESC,
 118         T_DUMP_STRING,
 119         T_DUMP_INFO,
 120         T_SUSPEND,
 121         T_RESUME,
 122         T_POWER_OFF,
 123         T_POWER_SAVE,
 124         T_POWER_ON,
 125         T_RESET,
 126         T_LIST,
 127         T_DO_REQUEST,
 128 };
 129
 130 static struct options options;
 131
 132 static const struct token token[] = {
 133         {"-u", T_UNIT, 1},
 134         {"-a", T_ADDR, 1},
 135         {"-d", T_UGEN, 1},
 136         {"-i", T_IFACE, 1},
 137         {"set_config", T_SET_CONFIG, 1},
 138         {"set_alt", T_SET_ALT, 1},
 139         {"set_template", T_SET_TEMPLATE, 1},
 140         {"get_template", T_GET_TEMPLATE, 0},
 141         {"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
 142         {"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
 143         {"add_quirk", T_ADD_QUIRK, 1},
 144         {"remove_quirk", T_REMOVE_QUIRK, 1},
 145         {"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
 146         {"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
 147         {"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
 148         {"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
 149         {"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
 150         {"dump_string", T_DUMP_STRING, 1},
 151         {"dump_info", T_DUMP_INFO, 0},
 152         {"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
 153         {"suspend", T_SUSPEND, 0},
 154         {"resume", T_RESUME, 0},
 155         {"power_off", T_POWER_OFF, 0},
 156         {"power_save", T_POWER_SAVE, 0},
 157         {"power_on", T_POWER_ON, 0},
 158         {"reset", T_RESET, 0},
 159         {"list", T_LIST, 0},
 160         {"do_request", T_DO_REQUEST, 5},
 161 };
 162
 163 static void
 164 be_dev_remove_quirk(struct libusb20_backend *pbe,
 165     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
 166     const char *str)
 167 {
 168         struct libusb20_quirk q;
 169         int error;
 170
 171         memset(&q, 0, sizeof(q));
 172
 173         q.vid = vid;
 174         q.pid = pid;
 175         q.bcdDeviceLow = lorev;
 176         q.bcdDeviceHigh = hirev;
 177         strlcpy(q.quirkname, str, sizeof(q.quirkname));
 178
 179         error = libusb20_be_remove_dev_quirk(pbe, &q);
 180         if (error) {
 181                 fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
 182         }
 183         return;
 184 }
 185
 186 static void
 187 be_dev_add_quirk(struct libusb20_backend *pbe,
 188     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
 189     const char *str)
 190 {
 191         struct libusb20_quirk q;
 192         int error;
 193
 194         memset(&q, 0, sizeof(q));
 195
 196         q.vid = vid;
 197         q.pid = pid;
 198         q.bcdDeviceLow = lorev;
 199         q.bcdDeviceHigh = hirev;
 200         strlcpy(q.quirkname, str, sizeof(q.quirkname));
 201
 202         error = libusb20_be_add_dev_quirk(pbe, &q);
 203         if (error) {
 204                 fprintf(stderr, "Adding quirk '%s' failed, continuing.\n", str);
 205         }
 206         return;
 207 }
 208
 209 static uint8_t
 210 get_token(const char *str, uint8_t narg)
 211 {
 212         uint8_t n;
 213
 214         for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
 215                 if (strcasecmp(str, token[n].name) == 0) {
 216                         if (token[n].narg > narg) {
 217                                 /* too few arguments */
 218                                 break;
 219                         }
 220                         return (token[n].value);
 221                 }
 222         }
 223         return (0 - 1);
 224 }
 225
 226 static uid_t
 227 num_id(const char *name, const char *type)
 228 {
 229         uid_t val;
 230         char *ep;
 231
 232         errno = 0;
 233         val = strtoul(name, &ep, 0);
 234         if (errno) {
 235                 err(1, "%s", name);
 236         }
 237         if (*ep != '\0') {
 238                 errx(1, "%s: illegal %s name", name, type);
 239         }
 240         return (val);
 241 }
 242
 243 static int
 244 get_int(const char *s)
 245 {
 246         int val;
 247         char *ep;
 248
 249         errno = 0;
 250         val = strtoul(s, &ep, 0);
 251         if (errno) {
 252                 err(1, "%s", s);
 253         }
 254         if (*ep != '\0') {
 255                 errx(1, "illegal number: %s", s);
 256         }
 257         return val;
 258 }
 259
 260 static void
 261 duplicate_option(const char *ptr)
 262 {
 263         fprintf(stderr, "Syntax error: "
 264             "Duplicate option: '%s'\n", ptr);
 265         exit(1);
 266 }
 267
 268 static void
 269 usage(void)
 270 {
 271         fprintf(stderr, ""
 272             "usbconfig - configure the USB subsystem" "\n"
 273             "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
 274             "usage: usbconfig -d [ugen]<busnum>.<devaddr> -i <ifaceindex> [cmds...]" "\n"
 275             "commands:" "\n"
 276             "  set_config <cfg_index>" "\n"
 277             "  set_alt <alt_index>" "\n"
 278             "  set_template <template>" "\n"
 279             "  get_template" "\n"
 280             "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
 281             "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
 282             "  add_quirk <quirk>" "\n"
 283             "  remove_quirk <quirk>" "\n"
 284             "  dump_quirk_names" "\n"
 285             "  dump_device_quirks" "\n"
 286             "  dump_device_desc" "\n"
 287             "  dump_curr_config_desc" "\n"
 288             "  dump_all_config_desc" "\n"
 289             "  dump_string <index>" "\n"
 290             "  dump_info" "\n"
 291             "  show_ifdrv" "\n"
 292             "  suspend" "\n"
 293             "  resume" "\n"
 294             "  power_off" "\n"
 295             "  power_save" "\n"
 296             "  power_on" "\n"
 297             "  reset" "\n"
 298             "  list" "\n"
 299             "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
 300         );
 301         exit(1);
 302 }
 303
 304 static void
 305 reset_options(struct options *opt)
 306 {
 307         if (opt->buffer)
 308                 free(opt->buffer);
 309         memset(opt, 0, sizeof(*opt));
 310         return;
 311 }
 312
 313 static void
 314 flush_command(struct libusb20_backend *pbe, struct options *opt)
 315 {
 316         struct libusb20_device *pdev = NULL;
 317         uint32_t matches = 0;
 318         uint8_t dump_any;
 319
 320         /* check for invalid option combinations */
 321         if ((opt->got_suspend +
 322             opt->got_resume +
 323             opt->got_reset +
 324             opt->got_set_config +
 325             opt->got_set_alt +
 326             opt->got_power_save +
 327             opt->got_power_on +
 328             opt->got_power_off) > 1) {
 329                 err(1, "can only specify one of 'set_config', "
 330                     "'set_alt', 'reset', 'suspend', 'resume', "
 331                     "'power_save', 'power_on' and 'power_off' "
 332                     "at the same time!");
 333         }
 334         if (opt->got_dump_quirk_names) {
 335                 opt->got_any--;
 336                 dump_be_quirk_names(pbe);
 337         }
 338         if (opt->got_dump_device_quirks) {
 339                 opt->got_any--;
 340                 dump_be_dev_quirks(pbe);
 341         }
 342         if (opt->got_remove_device_quirk) {
 343                 opt->got_any--;
 344                 be_dev_remove_quirk(pbe,
 345                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
 346         }
 347         if (opt->got_add_device_quirk) {
 348                 opt->got_any--;
 349                 be_dev_add_quirk(pbe,
 350                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
 351         }
 352         if (opt->got_set_template) {
 353                 opt->got_any--;
 354                 if (libusb20_be_set_template(pbe, opt->template)) {
 355                         fprintf(stderr, "Setting USB template %u failed, "
 356                             "continuing.\n", opt->template);
 357                 }
 358         }
 359         if (opt->got_get_template) {
 360                 opt->got_any--;
 361                 if (libusb20_be_get_template(pbe, &opt->template))
 362                         printf("USB template: <unknown>\n");
 363                 else
 364                         printf("USB template: %u\n", opt->template);
 365         }
 366         if (opt->got_any == 0) {
 367                 /*
 368                  * do not scan through all the devices if there are no valid
 369                  * options
 370                  */
 371                 goto done;
 372         }
 373         while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
 374
 375                 if (opt->got_bus &&
 376                     (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
 377                         continue;
 378                 }
 379                 if (opt->got_addr &&
 380                     (libusb20_dev_get_address(pdev) != opt->addr)) {
 381                         continue;
 382                 }
 383                 matches++;
 384
 385                 if (opt->got_remove_quirk) {
 386                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
 387
 388                         ddesc = libusb20_dev_get_device_desc(pdev);
 389
 390                         be_dev_remove_quirk(pbe,
 391                             ddesc->idVendor, ddesc->idProduct,
 392                             ddesc->bcdDevice, ddesc->bcdDevice,
 393                             opt->quirkname);
 394                 }
 395
 396                 if (opt->got_add_quirk) {
 397                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
 398
 399                         ddesc = libusb20_dev_get_device_desc(pdev);
 400
 401                         be_dev_add_quirk(pbe,
 402                             ddesc->idVendor, ddesc->idProduct,
 403                             ddesc->bcdDevice, ddesc->bcdDevice,
 404                             opt->quirkname);
 405                 }
 406
 407                 if (libusb20_dev_open(pdev, 0)) {
 408                         err(1, "could not open device");
 409                 }
 410                 if (opt->got_dump_string) {
 411                         dump_string_by_index(pdev, opt->string_index);
 412                 }
 413                 if (opt->got_do_request) {
 414                         uint16_t actlen;
 415                         uint16_t t;
 416
 417                         if (libusb20_dev_request_sync(pdev, &opt->setup,
 418                             opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
 419                                 printf("REQUEST = <ERROR>\n");
 420                         } else if (!(opt->setup.bmRequestType &
 421                             LIBUSB20_ENDPOINT_IN)) {
 422                                 printf("REQUEST = <OK>\n");
 423                         } else {
 424                                 t = actlen;
 425                                 printf("REQUEST = <");
 426                                 for (t = 0; t != actlen; t++) {
 427                                         printf("0x%02x%s",
 428                                             ((uint8_t *)opt->buffer)[t],
 429                                             (t == (actlen - 1)) ? "" : " ");
 430                                 }
 431                                 printf("><");
 432                                 for (t = 0; t != actlen; t++) {
 433                                         char c;
 434
 435                                         c = ((uint8_t *)opt->buffer)[t];
 436                                         if ((c != '<') &&
 437                                             (c != '>') && isprint(c)) {
 438                                                 putchar(c);
 439                                         }
 440                                 }
 441                                 printf(">\n");
 442                         }
 443                 }
 444                 if (opt->got_set_config) {
 445                         if (libusb20_dev_set_config_index(pdev,
 446                             opt->config_index)) {
 447                                 err(1, "could not set config index");
 448                         }
 449                 }
 450                 if (opt->got_set_alt) {
 451                         if (libusb20_dev_set_alt_index(pdev, opt->iface,
 452                             opt->alt_index)) {
 453                                 err(1, "could not set alternate setting");
 454                         }
 455                 }
 456                 if (opt->got_reset) {
 457                         if (libusb20_dev_reset(pdev)) {
 458                                 err(1, "could not reset device");
 459                         }
 460                 }
 461                 if (opt->got_suspend) {
 462                         if (libusb20_dev_set_power_mode(pdev,
 463                             LIBUSB20_POWER_SUSPEND)) {
 464                                 err(1, "could not set suspend");
 465                         }
 466                 }
 467                 if (opt->got_resume) {
 468                         if (libusb20_dev_set_power_mode(pdev,
 469                             LIBUSB20_POWER_RESUME)) {
 470                                 err(1, "could not set resume");
 471                         }
 472                 }
 473                 if (opt->got_power_off) {
 474                         if (libusb20_dev_set_power_mode(pdev,
 475                             LIBUSB20_POWER_OFF)) {
 476                                 err(1, "could not set power OFF");
 477                         }
 478                 }
 479                 if (opt->got_power_save) {
 480                         if (libusb20_dev_set_power_mode(pdev,
 481                             LIBUSB20_POWER_SAVE)) {
 482                                 err(1, "could not set power SAVE");
 483                         }
 484                 }
 485                 if (opt->got_power_on) {
 486                         if (libusb20_dev_set_power_mode(pdev,
 487                             LIBUSB20_POWER_ON)) {
 488                                 err(1, "could not set power ON");
 489                         }
 490                 }
 491                 dump_any =
 492                     (opt->got_dump_device_desc ||
 493                     opt->got_dump_curr_config ||
 494                     opt->got_dump_all_config ||
 495                     opt->got_dump_info);
 496
 497                 if (opt->got_list || dump_any) {
 498                         dump_device_info(pdev,
 499                             opt->got_show_iface_driver);
 500                 }
 501                 if (opt->got_dump_device_desc) {
 502                         printf("\n");
 503                         dump_device_desc(pdev);
 504                 }
 505                 if (opt->got_dump_all_config) {
 506                         printf("\n");
 507                         dump_config(pdev, 1);
 508                 } else if (opt->got_dump_curr_config) {
 509                         printf("\n");
 510                         dump_config(pdev, 0);
 511                 }
 512                 if (dump_any) {
 513                         printf("\n");
 514                 }
 515                 if (libusb20_dev_close(pdev)) {
 516                         err(1, "could not close device");
 517                 }
 518         }
 519
 520         if (matches == 0) {
 521                 printf("No device match or lack of permissions.\n");
 522         }
 523 done:
 524         reset_options(opt);
 525
 526         return;
 527 }
 528
 529 int
 530 main(int argc, char **argv)
 531 {
 532         struct libusb20_backend *pbe;
 533         struct options *opt = &options;
 534         const char *ptr;
 535         int unit;
 536         int addr;
 537         int n;
 538         int t;
 539
 540         if (argc < 1) {
 541                 usage();
 542         }
 543         pbe = libusb20_be_alloc_default();
 544         if (pbe == NULL)
 545                 err(1, "could not access USB backend\n");
 546
 547         for (n = 1; n != argc; n++) {
 548
 549                 /* get number of additional options */
 550                 t = (argc - n - 1);
 551                 if (t > 255)
 552                         t = 255;
 553                 switch (get_token(argv[n], t)) {
 554                 case T_ADD_QUIRK:
 555                         if (opt->got_add_quirk) {
 556                                 flush_command(pbe, opt);
 557                         }
 558                         opt->quirkname = argv[n + 1];
 559                         n++;
 560
 561                         opt->got_add_quirk = 1;
 562                         opt->got_any++;
 563                         break;
 564
 565                 case T_REMOVE_QUIRK:
 566                         if (opt->got_remove_quirk) {
 567                                 flush_command(pbe, opt);
 568                         }
 569                         opt->quirkname = argv[n + 1];
 570                         n++;
 571
 572                         opt->got_remove_quirk = 1;
 573                         opt->got_any++;
 574                         break;
 575
 576                 case T_ADD_DEVICE_QUIRK:
 577                         if (opt->got_add_device_quirk) {
 578                                 flush_command(pbe, opt);
 579                         }
 580                         opt->vid = num_id(argv[n + 1], "Vendor ID");
 581                         opt->pid = num_id(argv[n + 2], "Product ID");
 582                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
 583                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
 584                         opt->quirkname = argv[n + 5];
 585                         n += 5;
 586
 587                         opt->got_add_device_quirk = 1;
 588                         opt->got_any++;
 589                         break;
 590
 591                 case T_REMOVE_DEVICE_QUIRK:
 592                         if (opt->got_remove_device_quirk) {
 593                                 flush_command(pbe, opt);
 594                         }
 595                         opt->vid = num_id(argv[n + 1], "Vendor ID");
 596                         opt->pid = num_id(argv[n + 2], "Product ID");
 597                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
 598                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
 599                         opt->quirkname = argv[n + 5];
 600                         n += 5;
 601                         opt->got_remove_device_quirk = 1;
 602                         opt->got_any++;
 603                         break;
 604
 605                 case T_DUMP_QUIRK_NAMES:
 606                         if (opt->got_dump_quirk_names)
 607                                 duplicate_option(argv[n]);
 608                         opt->got_dump_quirk_names = 1;
 609                         opt->got_any++;
 610                         break;
 611
 612                 case T_DUMP_DEVICE_QUIRKS:
 613                         if (opt->got_dump_device_quirks)
 614                                 duplicate_option(argv[n]);
 615                         opt->got_dump_device_quirks = 1;
 616                         opt->got_any++;
 617                         break;
 618
 619                 case T_SHOW_IFACE_DRIVER:
 620                         opt->got_show_iface_driver = 1;
 621                         break;
 622
 623                 case T_UGEN:
 624                         if (opt->got_any) {
 625                                 /* allow multiple commands on the same line */
 626                                 flush_command(pbe, opt);
 627                         }
 628                         ptr = argv[n + 1];
 629
 630                         if ((ptr[0] == 'u') &&
 631                             (ptr[1] == 'g') &&
 632                             (ptr[2] == 'e') &&
 633                             (ptr[3] == 'n'))
 634                                 ptr += 4;
 635
 636                         if ((sscanf(ptr, "%d.%d",
 637                             &unit, &addr) != 2) ||
 638                             (unit < 0) || (unit > 65535) ||
 639                             (addr < 0) || (addr > 65535)) {
 640                                 errx(1, "cannot "
 641                                     "parse '%s'", argv[n + 1]);
 642                         }
 643                         opt->bus = unit;
 644                         opt->addr = addr;
 645                         opt->got_bus = 1;
 646                         opt->got_addr = 1;
 647                         n++;
 648                         break;
 649
 650                 case T_UNIT:
 651                         if (opt->got_any) {
 652                                 /* allow multiple commands on the same line */
 653                                 flush_command(pbe, opt);
 654                         }
 655                         opt->bus = num_id(argv[n + 1], "busnum");
 656                         opt->got_bus = 1;
 657                         n++;
 658                         break;
 659                 case T_ADDR:
 660                         opt->addr = num_id(argv[n + 1], "addr");
 661                         opt->got_addr = 1;
 662                         n++;
 663                         break;
 664                 case T_IFACE:
 665                         opt->iface = num_id(argv[n + 1], "iface");
 666                         opt->got_iface = 1;
 667                         n++;
 668                         break;
 669                 case T_SET_CONFIG:
 670                         if (opt->got_set_config)
 671                                 duplicate_option(argv[n]);
 672                         opt->config_index = num_id(argv[n + 1], "cfg_index");
 673                         opt->got_set_config = 1;
 674                         opt->got_any++;
 675                         n++;
 676                         break;
 677                 case T_SET_ALT:
 678                         if (opt->got_set_alt)
 679                                 duplicate_option(argv[n]);
 680                         opt->alt_index = num_id(argv[n + 1], "cfg_index");
 681                         opt->got_set_alt = 1;
 682                         opt->got_any++;
 683                         n++;
 684                         break;
 685                 case T_SET_TEMPLATE:
 686                         if (opt->got_set_template)
 687                                 duplicate_option(argv[n]);
 688                         opt->template = get_int(argv[n + 1]);
 689                         opt->got_set_template = 1;
 690                         opt->got_any++;
 691                         n++;
 692                         break;
 693                 case T_GET_TEMPLATE:
 694                         if (opt->got_get_template)
 695                                 duplicate_option(argv[n]);
 696                         opt->got_get_template = 1;
 697                         opt->got_any++;
 698                         break;
 699                 case T_DUMP_DEVICE_DESC:
 700                         if (opt->got_dump_device_desc)
 701                                 duplicate_option(argv[n]);
 702                         opt->got_dump_device_desc = 1;
 703                         opt->got_any++;
 704                         break;
 705                 case T_DUMP_CURR_CONFIG_DESC:
 706                         if (opt->got_dump_curr_config)
 707                                 duplicate_option(argv[n]);
 708                         opt->got_dump_curr_config = 1;
 709                         opt->got_any++;
 710                         break;
 711                 case T_DUMP_ALL_CONFIG_DESC:
 712                         if (opt->got_dump_all_config)
 713                                 duplicate_option(argv[n]);
 714                         opt->got_dump_all_config = 1;
 715                         opt->got_any++;
 716                         break;
 717                 case T_DUMP_INFO:
 718                         if (opt->got_dump_info)
 719                                 duplicate_option(argv[n]);
 720                         opt->got_dump_info = 1;
 721                         opt->got_any++;
 722                         break;
 723                 case T_DUMP_STRING:
 724                         if (opt->got_dump_string)
 725                                 duplicate_option(argv[n]);
 726                         opt->string_index = num_id(argv[n + 1], "str_index");
 727                         opt->got_dump_string = 1;
 728                         opt->got_any++;
 729                         n++;
 730                         break;
 731                 case T_SUSPEND:
 732                         if (opt->got_suspend)
 733                                 duplicate_option(argv[n]);
 734                         opt->got_suspend = 1;
 735                         opt->got_any++;
 736                         break;
 737                 case T_RESUME:
 738                         if (opt->got_resume)
 739                                 duplicate_option(argv[n]);
 740                         opt->got_resume = 1;
 741                         opt->got_any++;
 742                         break;
 743                 case T_POWER_OFF:
 744                         if (opt->got_power_off)
 745                                 duplicate_option(argv[n]);
 746                         opt->got_power_off = 1;
 747                         opt->got_any++;
 748                         break;
 749                 case T_POWER_SAVE:
 750                         if (opt->got_power_save)
 751                                 duplicate_option(argv[n]);
 752                         opt->got_power_save = 1;
 753                         opt->got_any++;
 754                         break;
 755                 case T_POWER_ON:
 756                         if (opt->got_power_on)
 757                                 duplicate_option(argv[n]);
 758                         opt->got_power_on = 1;
 759                         opt->got_any++;
 760                         break;
 761                 case T_RESET:
 762                         if (opt->got_reset)
 763                                 duplicate_option(argv[n]);
 764                         opt->got_reset = 1;
 765                         opt->got_any++;
 766                         break;
 767                 case T_LIST:
 768                         if (opt->got_list)
 769                                 duplicate_option(argv[n]);
 770                         opt->got_list = 1;
 771                         opt->got_any++;
 772                         break;
 773                 case T_DO_REQUEST:
 774                         if (opt->got_do_request)
 775                                 duplicate_option(argv[n]);
 776                         LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
 777                         opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
 778                         opt->setup.bRequest = num_id(argv[n + 2], "bReq");
 779                         opt->setup.wValue = num_id(argv[n + 3], "wVal");
 780                         opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
 781                         opt->setup.wLength = num_id(argv[n + 5], "wLen");
 782                         if (opt->setup.wLength != 0) {
 783                                 opt->buffer = malloc(opt->setup.wLength);
 784                         } else {
 785                                 opt->buffer = NULL;
 786                         }
 787
 788                         n += 5;
 789
 790                         if (!(opt->setup.bmRequestType &
 791                             LIBUSB20_ENDPOINT_IN)) {
 792                                 /* copy in data */
 793                                 t = (argc - n - 1);
 794                                 if (t < opt->setup.wLength) {
 795                                         err(1, "request data missing");
 796                                 }
 797                                 t = opt->setup.wLength;
 798                                 while (t--) {
 799                                         ((uint8_t *)opt->buffer)[t] =
 800                                             num_id(argv[n + t + 1], "req_data");
 801                                 }
 802                                 n += opt->setup.wLength;
 803                         }
 804                         opt->got_do_request = 1;
 805                         opt->got_any++;
 806                         break;
 807                 default:
 808                         usage();
 809                         break;
 810                 }
 811         }
 812         if (opt->got_any) {
 813                 /* flush out last command */
 814                 flush_command(pbe, opt);
 815         } else {
 816                 /* list all the devices */
 817                 opt->got_list = 1;
 818                 opt->got_any++;
 819                 flush_command(pbe, opt);
 820         }
 821         /* release data */
 822         libusb20_be_free(pbe);
 823
 824         return (0);
 825 }