usr.sbin/usbconfig/usbconfig.c

   1 /* $FreeBSD: src/usr.sbin/usbconfig/usbconfig.c,v 1.11 2010/10/24 13:48:11 hselasky Exp $ */
   2 /*-
   3  * Copyright (c) 2008-2009 Hans Petter Selasky. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <stdint.h>
  30 #include <err.h>
  31 #include <string.h>
  32 #include <pwd.h>
  33 #include <grp.h>
  34 #include <errno.h>
  35 #include <ctype.h>
  36
  37 #include <libusb20_desc.h>
  38 #include <libusb20.h>
  39
  40 #include "dump.h"
  41
  42 struct options {
  43         const char *quirkname;
  44         void   *buffer;
  45         int template;
  46         gid_t   gid;
  47         uid_t   uid;
  48         mode_t  mode;
  49         uint32_t got_any;
  50         struct LIBUSB20_CONTROL_SETUP_DECODED setup;
  51         uint16_t bus;
  52         uint16_t addr;
  53         uint16_t iface;
  54         uint16_t vid;
  55         uint16_t pid;
  56         uint16_t lo_rev;                /* inclusive */
  57         uint16_t hi_rev;                /* inclusive */
  58         uint8_t string_index;
  59         uint8_t config_index;
  60         uint8_t alt_index;
  61         uint8_t got_list:1;
  62         uint8_t got_bus:1;
  63         uint8_t got_addr:1;
  64         uint8_t got_iface:1;
  65         uint8_t got_set_config:1;
  66         uint8_t got_set_alt:1;
  67         uint8_t got_set_template:1;
  68         uint8_t got_get_template:1;
  69         uint8_t got_suspend:1;
  70         uint8_t got_resume:1;
  71         uint8_t got_reset:1;
  72         uint8_t got_power_off:1;
  73         uint8_t got_power_save:1;
  74         uint8_t got_power_on:1;
  75         uint8_t got_dump_device_quirks:1;
  76         uint8_t got_dump_quirk_names:1;
  77         uint8_t got_dump_device_desc:1;
  78         uint8_t got_dump_curr_config:1;
  79         uint8_t got_dump_all_config:1;
  80         uint8_t got_dump_info:1;
  81         uint8_t got_show_iface_driver:1;
  82         uint8_t got_remove_device_quirk:1;
  83         uint8_t got_add_device_quirk:1;
  84         uint8_t got_remove_quirk:1;
  85         uint8_t got_add_quirk:1;
  86         uint8_t got_dump_string:1;
  87         uint8_t got_do_request:1;
  88 };
  89
  90 struct token {
  91         const char *name;
  92         uint8_t value;
  93         uint8_t narg;
  94 };
  95
  96 enum {
  97         T_UNIT,
  98         T_ADDR,
  99         T_UGEN,
 100         T_IFACE,
 101         T_SET_CONFIG,
 102         T_SET_ALT,
 103         T_SET_TEMPLATE,
 104         T_GET_TEMPLATE,
 105         T_ADD_DEVICE_QUIRK,
 106         T_REMOVE_DEVICE_QUIRK,
 107         T_ADD_QUIRK,
 108         T_REMOVE_QUIRK,
 109         T_SHOW_IFACE_DRIVER,
 110         T_DUMP_QUIRK_NAMES,
 111         T_DUMP_DEVICE_QUIRKS,
 112         T_DUMP_DEVICE_DESC,
 113         T_DUMP_CURR_CONFIG_DESC,
 114         T_DUMP_ALL_CONFIG_DESC,
 115         T_DUMP_STRING,
 116         T_DUMP_INFO,
 117         T_SUSPEND,
 118         T_RESUME,
 119         T_POWER_OFF,
 120         T_POWER_SAVE,
 121         T_POWER_ON,
 122         T_RESET,
 123         T_LIST,
 124         T_DO_REQUEST,
 125 };
 126
 127 static struct options options;
 128
 129 static const struct token token[] = {
 130         {"-u", T_UNIT, 1},
 131         {"-a", T_ADDR, 1},
 132         {"-d", T_UGEN, 1},
 133         {"-i", T_IFACE, 1},
 134         {"set_config", T_SET_CONFIG, 1},
 135         {"set_alt", T_SET_ALT, 1},
 136         {"set_template", T_SET_TEMPLATE, 1},
 137         {"get_template", T_GET_TEMPLATE, 0},
 138         {"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
 139         {"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
 140         {"add_quirk", T_ADD_QUIRK, 1},
 141         {"remove_quirk", T_REMOVE_QUIRK, 1},
 142         {"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
 143         {"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
 144         {"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
 145         {"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
 146         {"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
 147         {"dump_string", T_DUMP_STRING, 1},
 148         {"dump_info", T_DUMP_INFO, 0},
 149         {"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
 150         {"suspend", T_SUSPEND, 0},
 151         {"resume", T_RESUME, 0},
 152         {"power_off", T_POWER_OFF, 0},
 153         {"power_save", T_POWER_SAVE, 0},
 154         {"power_on", T_POWER_ON, 0},
 155         {"reset", T_RESET, 0},
 156         {"list", T_LIST, 0},
 157         {"do_request", T_DO_REQUEST, 5},
 158 };
 159
 160 static void
 161 be_dev_remove_quirk(struct libusb20_backend *pbe,
 162     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
 163     const char *str)
 164 {
 165         struct libusb20_quirk q;
 166         int error;
 167
 168         memset(&q, 0, sizeof(q));
 169
 170         q.vid = vid;
 171         q.pid = pid;
 172         q.bcdDeviceLow = lorev;
 173         q.bcdDeviceHigh = hirev;
 174         strlcpy(q.quirkname, str, sizeof(q.quirkname));
 175
 176         error = libusb20_be_remove_dev_quirk(pbe, &q);
 177         if (error) {
 178                 fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
 179         }
 180         return;
 181 }
 182
 183 static void
 184 be_dev_add_quirk(struct libusb20_backend *pbe,
 185     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
 186     const char *str)
 187 {
 188         struct libusb20_quirk q;
 189         int error;
 190
 191         memset(&q, 0, sizeof(q));
 192
 193         q.vid = vid;
 194         q.pid = pid;
 195         q.bcdDeviceLow = lorev;
 196         q.bcdDeviceHigh = hirev;
 197         strlcpy(q.quirkname, str, sizeof(q.quirkname));
 198
 199         error = libusb20_be_add_dev_quirk(pbe, &q);
 200         if (error) {
 201                 fprintf(stderr, "Adding quirk '%s' failed, continuing.\n", str);
 202         }
 203         return;
 204 }
 205
 206 static uint8_t
 207 get_token(const char *str, uint8_t narg)
 208 {
 209         uint8_t n;
 210
 211         for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
 212                 if (strcasecmp(str, token[n].name) == 0) {
 213                         if (token[n].narg > narg) {
 214                                 /* too few arguments */
 215                                 break;
 216                         }
 217                         return (token[n].value);
 218                 }
 219         }
 220         return (0 - 1);
 221 }
 222
 223 static uid_t
 224 num_id(const char *name, const char *type)
 225 {
 226         uid_t val;
 227         char *ep;
 228
 229         errno = 0;
 230         val = strtoul(name, &ep, 0);
 231         if (errno) {
 232                 err(1, "%s", name);
 233         }
 234         if (*ep != '\0') {
 235                 errx(1, "%s: illegal %s name", name, type);
 236         }
 237         return (val);
 238 }
 239
 240 static int
 241 get_int(const char *s)
 242 {
 243         int val;
 244         char *ep;
 245
 246         errno = 0;
 247         val = strtoul(s, &ep, 0);
 248         if (errno) {
 249                 err(1, "%s", s);
 250         }
 251         if (*ep != '\0') {
 252                 errx(1, "illegal number: %s", s);
 253         }
 254         return val;
 255 }
 256
 257 static void
 258 duplicate_option(const char *ptr)
 259 {
 260         fprintf(stderr, "Syntax error: "
 261             "Duplicate option: '%s'\n", ptr);
 262         exit(1);
 263 }
 264
 265 static void
 266 usage(void)
 267 {
 268         fprintf(stderr, ""
 269             "usbconfig - configure the USB subsystem" "\n"
 270             "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
 271             "usage: usbconfig -d [ugen]<busnum>.<devaddr> -i <ifaceindex> [cmds...]" "\n"
 272             "commands:" "\n"
 273             "  set_config <cfg_index>" "\n"
 274             "  set_alt <alt_index>" "\n"
 275             "  set_template <template>" "\n"
 276             "  get_template" "\n"
 277             "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
 278             "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
 279             "  add_quirk <quirk>" "\n"
 280             "  remove_quirk <quirk>" "\n"
 281             "  dump_quirk_names" "\n"
 282             "  dump_device_quirks" "\n"
 283             "  dump_device_desc" "\n"
 284             "  dump_curr_config_desc" "\n"
 285             "  dump_all_config_desc" "\n"
 286             "  dump_string <index>" "\n"
 287             "  dump_info" "\n"
 288             "  show_ifdrv" "\n"
 289             "  suspend" "\n"
 290             "  resume" "\n"
 291             "  power_off" "\n"
 292             "  power_save" "\n"
 293             "  power_on" "\n"
 294             "  reset" "\n"
 295             "  list" "\n"
 296             "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
 297         );
 298         exit(1);
 299 }
 300
 301 static void
 302 reset_options(struct options *opt)
 303 {
 304         if (opt->buffer)
 305                 free(opt->buffer);
 306         memset(opt, 0, sizeof(*opt));
 307         return;
 308 }
 309
 310 static void
 311 flush_command(struct libusb20_backend *pbe, struct options *opt)
 312 {
 313         struct libusb20_device *pdev = NULL;
 314         uint32_t matches = 0;
 315         uint8_t dump_any;
 316
 317         /* check for invalid option combinations */
 318         if ((opt->got_suspend +
 319             opt->got_resume +
 320             opt->got_reset +
 321             opt->got_set_config +
 322             opt->got_set_alt +
 323             opt->got_power_save +
 324             opt->got_power_on +
 325             opt->got_power_off) > 1) {
 326                 err(1, "can only specify one of 'set_config', "
 327                     "'set_alt', 'reset', 'suspend', 'resume', "
 328                     "'power_save', 'power_on' and 'power_off' "
 329                     "at the same time!");
 330         }
 331         if (opt->got_dump_quirk_names) {
 332                 opt->got_any--;
 333                 dump_be_quirk_names(pbe);
 334         }
 335         if (opt->got_dump_device_quirks) {
 336                 opt->got_any--;
 337                 dump_be_dev_quirks(pbe);
 338         }
 339         if (opt->got_remove_device_quirk) {
 340                 opt->got_any--;
 341                 be_dev_remove_quirk(pbe,
 342                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
 343         }
 344         if (opt->got_add_device_quirk) {
 345                 opt->got_any--;
 346                 be_dev_add_quirk(pbe,
 347                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
 348         }
 349         if (opt->got_set_template) {
 350                 opt->got_any--;
 351                 if (libusb20_be_set_template(pbe, opt->template)) {
 352                         fprintf(stderr, "Setting USB template %u failed, "
 353                             "continuing.\n", opt->template);
 354                 }
 355         }
 356         if (opt->got_get_template) {
 357                 opt->got_any--;
 358                 if (libusb20_be_get_template(pbe, &opt->template))
 359                         printf("USB template: <unknown>\n");
 360                 else
 361                         printf("USB template: %u\n", opt->template);
 362         }
 363         if (opt->got_any == 0) {
 364                 /*
 365                  * do not scan through all the devices if there are no valid
 366                  * options
 367                  */
 368                 goto done;
 369         }
 370         while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
 371
 372                 if (opt->got_bus &&
 373                     (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
 374                         continue;
 375                 }
 376                 if (opt->got_addr &&
 377                     (libusb20_dev_get_address(pdev) != opt->addr)) {
 378                         continue;
 379                 }
 380                 matches++;
 381
 382                 if (opt->got_remove_quirk) {
 383                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
 384
 385                         ddesc = libusb20_dev_get_device_desc(pdev);
 386
 387                         be_dev_remove_quirk(pbe,
 388                             ddesc->idVendor, ddesc->idProduct,
 389                             ddesc->bcdDevice, ddesc->bcdDevice,
 390                             opt->quirkname);
 391                 }
 392
 393                 if (opt->got_add_quirk) {
 394                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
 395
 396                         ddesc = libusb20_dev_get_device_desc(pdev);
 397
 398                         be_dev_add_quirk(pbe,
 399                             ddesc->idVendor, ddesc->idProduct,
 400                             ddesc->bcdDevice, ddesc->bcdDevice,
 401                             opt->quirkname);
 402                 }
 403
 404                 if (libusb20_dev_open(pdev, 0)) {
 405                         err(1, "could not open device");
 406                 }
 407                 if (opt->got_dump_string) {
 408                         dump_string_by_index(pdev, opt->string_index);
 409                 }
 410                 if (opt->got_do_request) {
 411                         uint16_t actlen;
 412                         uint16_t t;
 413
 414                         if (libusb20_dev_request_sync(pdev, &opt->setup,
 415                             opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
 416                                 printf("REQUEST = <ERROR>\n");
 417                         } else if (!(opt->setup.bmRequestType &
 418                             LIBUSB20_ENDPOINT_IN)) {
 419                                 printf("REQUEST = <OK>\n");
 420                         } else {
 421                                 t = actlen;
 422                                 printf("REQUEST = <");
 423                                 for (t = 0; t != actlen; t++) {
 424                                         printf("0x%02x%s",
 425                                             ((uint8_t *)opt->buffer)[t],
 426                                             (t == (actlen - 1)) ? "" : " ");
 427                                 }
 428                                 printf("><");
 429                                 for (t = 0; t != actlen; t++) {
 430                                         char c;
 431
 432                                         c = ((uint8_t *)opt->buffer)[t];
 433                                         if ((c != '<') &&
 434                                             (c != '>') && isprint(c)) {
 435                                                 putchar(c);
 436                                         }
 437                                 }
 438                                 printf(">\n");
 439                         }
 440                 }
 441                 if (opt->got_set_config) {
 442                         if (libusb20_dev_set_config_index(pdev,
 443                             opt->config_index)) {
 444                                 err(1, "could not set config index");
 445                         }
 446                 }
 447                 if (opt->got_set_alt) {
 448                         if (libusb20_dev_set_alt_index(pdev, opt->iface,
 449                             opt->alt_index)) {
 450                                 err(1, "could not set alternate setting");
 451                         }
 452                 }
 453                 if (opt->got_reset) {
 454                         if (libusb20_dev_reset(pdev)) {
 455                                 err(1, "could not reset device");
 456                         }
 457                 }
 458                 if (opt->got_suspend) {
 459                         if (libusb20_dev_set_power_mode(pdev,
 460                             LIBUSB20_POWER_SUSPEND)) {
 461                                 err(1, "could not set suspend");
 462                         }
 463                 }
 464                 if (opt->got_resume) {
 465                         if (libusb20_dev_set_power_mode(pdev,
 466                             LIBUSB20_POWER_RESUME)) {
 467                                 err(1, "could not set resume");
 468                         }
 469                 }
 470                 if (opt->got_power_off) {
 471                         if (libusb20_dev_set_power_mode(pdev,
 472                             LIBUSB20_POWER_OFF)) {
 473                                 err(1, "could not set power OFF");
 474                         }
 475                 }
 476                 if (opt->got_power_save) {
 477                         if (libusb20_dev_set_power_mode(pdev,
 478                             LIBUSB20_POWER_SAVE)) {
 479                                 err(1, "could not set power SAVE");
 480                         }
 481                 }
 482                 if (opt->got_power_on) {
 483                         if (libusb20_dev_set_power_mode(pdev,
 484                             LIBUSB20_POWER_ON)) {
 485                                 err(1, "could not set power ON");
 486                         }
 487                 }
 488                 dump_any =
 489                     (opt->got_dump_device_desc ||
 490                     opt->got_dump_curr_config ||
 491                     opt->got_dump_all_config ||
 492                     opt->got_dump_info);
 493
 494                 if (opt->got_list || dump_any) {
 495                         dump_device_info(pdev,
 496                             opt->got_show_iface_driver);
 497                 }
 498                 if (opt->got_dump_device_desc) {
 499                         printf("\n");
 500                         dump_device_desc(pdev);
 501                 }
 502                 if (opt->got_dump_all_config) {
 503                         printf("\n");
 504                         dump_config(pdev, 1);
 505                 } else if (opt->got_dump_curr_config) {
 506                         printf("\n");
 507                         dump_config(pdev, 0);
 508                 }
 509                 if (dump_any) {
 510                         printf("\n");
 511                 }
 512                 if (libusb20_dev_close(pdev)) {
 513                         err(1, "could not close device");
 514                 }
 515         }
 516
 517         if (matches == 0) {
 518                 printf("No device match or lack of permissions.\n");
 519         }
 520 done:
 521         reset_options(opt);
 522
 523         return;
 524 }
 525
 526 int
 527 main(int argc, char **argv)
 528 {
 529         struct libusb20_backend *pbe;
 530         struct options *opt = &options;
 531         const char *ptr;
 532         int unit;
 533         int addr;
 534         int n;
 535         int t;
 536
 537         if (argc < 1) {
 538                 usage();
 539         }
 540         pbe = libusb20_be_alloc_default();
 541         if (pbe == NULL)
 542                 err(1, "could not access USB backend\n");
 543
 544         for (n = 1; n != argc; n++) {
 545
 546                 /* get number of additional options */
 547                 t = (argc - n - 1);
 548                 if (t > 255)
 549                         t = 255;
 550                 switch (get_token(argv[n], t)) {
 551                 case T_ADD_QUIRK:
 552                         if (opt->got_add_quirk) {
 553                                 flush_command(pbe, opt);
 554                         }
 555                         opt->quirkname = argv[n + 1];
 556                         n++;
 557
 558                         opt->got_add_quirk = 1;
 559                         opt->got_any++;
 560                         break;
 561
 562                 case T_REMOVE_QUIRK:
 563                         if (opt->got_remove_quirk) {
 564                                 flush_command(pbe, opt);
 565                         }
 566                         opt->quirkname = argv[n + 1];
 567                         n++;
 568
 569                         opt->got_remove_quirk = 1;
 570                         opt->got_any++;
 571                         break;
 572
 573                 case T_ADD_DEVICE_QUIRK:
 574                         if (opt->got_add_device_quirk) {
 575                                 flush_command(pbe, opt);
 576                         }
 577                         opt->vid = num_id(argv[n + 1], "Vendor ID");
 578                         opt->pid = num_id(argv[n + 2], "Product ID");
 579                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
 580                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
 581                         opt->quirkname = argv[n + 5];
 582                         n += 5;
 583
 584                         opt->got_add_device_quirk = 1;
 585                         opt->got_any++;
 586                         break;
 587
 588                 case T_REMOVE_DEVICE_QUIRK:
 589                         if (opt->got_remove_device_quirk) {
 590                                 flush_command(pbe, opt);
 591                         }
 592                         opt->vid = num_id(argv[n + 1], "Vendor ID");
 593                         opt->pid = num_id(argv[n + 2], "Product ID");
 594                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
 595                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
 596                         opt->quirkname = argv[n + 5];
 597                         n += 5;
 598                         opt->got_remove_device_quirk = 1;
 599                         opt->got_any++;
 600                         break;
 601
 602                 case T_DUMP_QUIRK_NAMES:
 603                         if (opt->got_dump_quirk_names)
 604                                 duplicate_option(argv[n]);
 605                         opt->got_dump_quirk_names = 1;
 606                         opt->got_any++;
 607                         break;
 608
 609                 case T_DUMP_DEVICE_QUIRKS:
 610                         if (opt->got_dump_device_quirks)
 611                                 duplicate_option(argv[n]);
 612                         opt->got_dump_device_quirks = 1;
 613                         opt->got_any++;
 614                         break;
 615
 616                 case T_SHOW_IFACE_DRIVER:
 617                         opt->got_show_iface_driver = 1;
 618                         break;
 619
 620                 case T_UGEN:
 621                         if (opt->got_any) {
 622                                 /* allow multiple commands on the same line */
 623                                 flush_command(pbe, opt);
 624                         }
 625                         ptr = argv[n + 1];
 626
 627                         if ((ptr[0] == 'u') &&
 628                             (ptr[1] == 'g') &&
 629                             (ptr[2] == 'e') &&
 630                             (ptr[3] == 'n'))
 631                                 ptr += 4;
 632
 633                         if ((sscanf(ptr, "%d.%d",
 634                             &unit, &addr) != 2) ||
 635                             (unit < 0) || (unit > 65535) ||
 636                             (addr < 0) || (addr > 65535)) {
 637                                 errx(1, "cannot "
 638                                     "parse '%s'", argv[n + 1]);
 639                         }
 640                         opt->bus = unit;
 641                         opt->addr = addr;
 642                         opt->got_bus = 1;
 643                         opt->got_addr = 1;
 644                         n++;
 645                         break;
 646
 647                 case T_UNIT:
 648                         if (opt->got_any) {
 649                                 /* allow multiple commands on the same line */
 650                                 flush_command(pbe, opt);
 651                         }
 652                         opt->bus = num_id(argv[n + 1], "busnum");
 653                         opt->got_bus = 1;
 654                         n++;
 655                         break;
 656                 case T_ADDR:
 657                         opt->addr = num_id(argv[n + 1], "addr");
 658                         opt->got_addr = 1;
 659                         n++;
 660                         break;
 661                 case T_IFACE:
 662                         opt->iface = num_id(argv[n + 1], "iface");
 663                         opt->got_iface = 1;
 664                         n++;
 665                         break;
 666                 case T_SET_CONFIG:
 667                         if (opt->got_set_config)
 668                                 duplicate_option(argv[n]);
 669                         opt->config_index = num_id(argv[n + 1], "cfg_index");
 670                         opt->got_set_config = 1;
 671                         opt->got_any++;
 672                         n++;
 673                         break;
 674                 case T_SET_ALT:
 675                         if (opt->got_set_alt)
 676                                 duplicate_option(argv[n]);
 677                         opt->alt_index = num_id(argv[n + 1], "cfg_index");
 678                         opt->got_set_alt = 1;
 679                         opt->got_any++;
 680                         n++;
 681                         break;
 682                 case T_SET_TEMPLATE:
 683                         if (opt->got_set_template)
 684                                 duplicate_option(argv[n]);
 685                         opt->template = get_int(argv[n + 1]);
 686                         opt->got_set_template = 1;
 687                         opt->got_any++;
 688                         n++;
 689                         break;
 690                 case T_GET_TEMPLATE:
 691                         if (opt->got_get_template)
 692                                 duplicate_option(argv[n]);
 693                         opt->got_get_template = 1;
 694                         opt->got_any++;
 695                         break;
 696                 case T_DUMP_DEVICE_DESC:
 697                         if (opt->got_dump_device_desc)
 698                                 duplicate_option(argv[n]);
 699                         opt->got_dump_device_desc = 1;
 700                         opt->got_any++;
 701                         break;
 702                 case T_DUMP_CURR_CONFIG_DESC:
 703                         if (opt->got_dump_curr_config)
 704                                 duplicate_option(argv[n]);
 705                         opt->got_dump_curr_config = 1;
 706                         opt->got_any++;
 707                         break;
 708                 case T_DUMP_ALL_CONFIG_DESC:
 709                         if (opt->got_dump_all_config)
 710                                 duplicate_option(argv[n]);
 711                         opt->got_dump_all_config = 1;
 712                         opt->got_any++;
 713                         break;
 714                 case T_DUMP_INFO:
 715                         if (opt->got_dump_info)
 716                                 duplicate_option(argv[n]);
 717                         opt->got_dump_info = 1;
 718                         opt->got_any++;
 719                         break;
 720                 case T_DUMP_STRING:
 721                         if (opt->got_dump_string)
 722                                 duplicate_option(argv[n]);
 723                         opt->string_index = num_id(argv[n + 1], "str_index");
 724                         opt->got_dump_string = 1;
 725                         opt->got_any++;
 726                         n++;
 727                         break;
 728                 case T_SUSPEND:
 729                         if (opt->got_suspend)
 730                                 duplicate_option(argv[n]);
 731                         opt->got_suspend = 1;
 732                         opt->got_any++;
 733                         break;
 734                 case T_RESUME:
 735                         if (opt->got_resume)
 736                                 duplicate_option(argv[n]);
 737                         opt->got_resume = 1;
 738                         opt->got_any++;
 739                         break;
 740                 case T_POWER_OFF:
 741                         if (opt->got_power_off)
 742                                 duplicate_option(argv[n]);
 743                         opt->got_power_off = 1;
 744                         opt->got_any++;
 745                         break;
 746                 case T_POWER_SAVE:
 747                         if (opt->got_power_save)
 748                                 duplicate_option(argv[n]);
 749                         opt->got_power_save = 1;
 750                         opt->got_any++;
 751                         break;
 752                 case T_POWER_ON:
 753                         if (opt->got_power_on)
 754                                 duplicate_option(argv[n]);
 755                         opt->got_power_on = 1;
 756                         opt->got_any++;
 757                         break;
 758                 case T_RESET:
 759                         if (opt->got_reset)
 760                                 duplicate_option(argv[n]);
 761                         opt->got_reset = 1;
 762                         opt->got_any++;
 763                         break;
 764                 case T_LIST:
 765                         if (opt->got_list)
 766                                 duplicate_option(argv[n]);
 767                         opt->got_list = 1;
 768                         opt->got_any++;
 769                         break;
 770                 case T_DO_REQUEST:
 771                         if (opt->got_do_request)
 772                                 duplicate_option(argv[n]);
 773                         LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
 774                         opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
 775                         opt->setup.bRequest = num_id(argv[n + 2], "bReq");
 776                         opt->setup.wValue = num_id(argv[n + 3], "wVal");
 777                         opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
 778                         opt->setup.wLength = num_id(argv[n + 5], "wLen");
 779                         if (opt->setup.wLength != 0) {
 780                                 opt->buffer = malloc(opt->setup.wLength);
 781                         } else {
 782                                 opt->buffer = NULL;
 783                         }
 784
 785                         n += 5;
 786
 787                         if (!(opt->setup.bmRequestType &
 788                             LIBUSB20_ENDPOINT_IN)) {
 789                                 /* copy in data */
 790                                 t = (argc - n - 1);
 791                                 if (t < opt->setup.wLength) {
 792                                         err(1, "request data missing");
 793                                 }
 794                                 t = opt->setup.wLength;
 795                                 while (t--) {
 796                                         ((uint8_t *)opt->buffer)[t] =
 797                                             num_id(argv[n + t + 1], "req_data");
 798                                 }
 799                                 n += opt->setup.wLength;
 800                         }
 801                         opt->got_do_request = 1;
 802                         opt->got_any++;
 803                         break;
 804                 default:
 805                         usage();
 806                         break;
 807                 }
 808         }
 809         if (opt->got_any) {
 810                 /* flush out last command */
 811                 flush_command(pbe, opt);
 812         } else {
 813                 /* list all the devices */
 814                 opt->got_list = 1;
 815                 opt->got_any++;
 816                 flush_command(pbe, opt);
 817         }
 818         /* release data */
 819         libusb20_be_free(pbe);
 820
 821         return (0);
 822 }