1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2008-2009 Hans Petter Selasky. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <stdint.h>
31#include <err.h>
32#include <sysexits.h>
33#include <string.h>
34#include <unistd.h>
35#include <pwd.h>
36#include <grp.h>
37#include <errno.h>
38#include <ctype.h>
39#include <sys/param.h>
40
41#include <libusb20_desc.h>
42#include <libusb20.h>
43
44#include "dump.h"
45
46struct options {
47	const char *quirkname;
48	void   *buffer;
49	int template;
50	gid_t	gid;
51	uid_t	uid;
52	mode_t	mode;
53	uint32_t got_any;
54	struct LIBUSB20_CONTROL_SETUP_DECODED setup;
55	uint16_t bus;
56	uint16_t addr;
57	uint16_t iface;
58	uint16_t vid;
59	uint16_t pid;
60	uint16_t lo_rev;		/* inclusive */
61	uint16_t hi_rev;		/* inclusive */
62	uint8_t	string_index;
63	uint8_t	config_index;
64	uint8_t	alt_index;
65	uint8_t	got_list:1;
66	uint8_t	got_bus:1;
67	uint8_t	got_addr: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_all_desc:1;
81	uint8_t	got_dump_device_desc:1;
82	uint8_t	got_dump_curr_config:1;
83	uint8_t	got_dump_all_config:1;
84	uint8_t	got_dump_info:1;
85  	uint8_t	got_dump_stats:1;
86	uint8_t	got_show_iface_driver:1;
87	uint8_t	got_remove_device_quirk:1;
88	uint8_t	got_add_device_quirk:1;
89	uint8_t	got_remove_quirk:1;
90	uint8_t	got_add_quirk:1;
91	uint8_t	got_dump_string:1;
92	uint8_t	got_do_request:1;
93	uint8_t	got_detach_kernel_driver:1;
94};
95
96struct token {
97	const char *name;
98	uint8_t	value;
99	uint8_t	narg;
100};
101
102enum {
103	T_SET_CONFIG,
104	T_SET_ALT,
105	T_SET_TEMPLATE,
106	T_GET_TEMPLATE,
107	T_ADD_DEVICE_QUIRK,
108	T_REMOVE_DEVICE_QUIRK,
109	T_ADD_QUIRK,
110	T_REMOVE_QUIRK,
111	T_SHOW_IFACE_DRIVER,
112	T_DETACH_KERNEL_DRIVER,
113	T_DUMP_QUIRK_NAMES,
114	T_DUMP_DEVICE_QUIRKS,
115	T_DUMP_ALL_DESC,
116	T_DUMP_DEVICE_DESC,
117	T_DUMP_CURR_CONFIG_DESC,
118	T_DUMP_ALL_CONFIG_DESC,
119	T_DUMP_STRING,
120	T_DUMP_INFO,
121	T_DUMP_STATS,
122	T_SUSPEND,
123	T_RESUME,
124	T_POWER_OFF,
125	T_POWER_SAVE,
126	T_POWER_ON,
127	T_RESET,
128	T_LIST,
129	T_DO_REQUEST,
130};
131
132static struct options options;
133
134static const struct token token[] = {
135	{"set_config", T_SET_CONFIG, 1},
136	{"set_alt", T_SET_ALT, 1},
137	{"set_template", T_SET_TEMPLATE, 1},
138	{"get_template", T_GET_TEMPLATE, 0},
139	{"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
140	{"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
141	{"add_quirk", T_ADD_QUIRK, 1},
142	{"remove_quirk", T_REMOVE_QUIRK, 1},
143	{"detach_kernel_driver", T_DETACH_KERNEL_DRIVER, 0},
144	{"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
145	{"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
146	{"dump_all_desc", T_DUMP_ALL_DESC, 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	{"dump_stats", T_DUMP_STATS, 0},
153	{"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
154	{"suspend", T_SUSPEND, 0},
155	{"resume", T_RESUME, 0},
156	{"power_off", T_POWER_OFF, 0},
157	{"power_save", T_POWER_SAVE, 0},
158	{"power_on", T_POWER_ON, 0},
159	{"reset", T_RESET, 0},
160	{"list", T_LIST, 0},
161	{"do_request", T_DO_REQUEST, 5},
162};
163
164static void
165be_dev_remove_quirk(struct libusb20_backend *pbe,
166    uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
167    const char *str)
168{
169	struct libusb20_quirk q;
170	int error;
171
172	memset(&q, 0, sizeof(q));
173
174	q.vid = vid;
175	q.pid = pid;
176	q.bcdDeviceLow = lorev;
177	q.bcdDeviceHigh = hirev;
178	strlcpy(q.quirkname, str, sizeof(q.quirkname));
179
180	error = libusb20_be_remove_dev_quirk(pbe, &q);
181	if (error) {
182		fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
183	}
184}
185
186static void
187be_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}
207
208static uint8_t
209get_token(const char *str, uint8_t narg)
210{
211	uint8_t n;
212
213	for (n = 0; n != nitems(token); n++) {
214		if (strcasecmp(str, token[n].name) == 0) {
215			if (token[n].narg > narg) {
216				/* too few arguments */
217				break;
218			}
219			return (token[n].value);
220		}
221	}
222	return (0 - 1);
223}
224
225static uid_t
226num_id(const char *name, const char *type)
227{
228	uid_t val;
229	char *ep;
230
231	errno = 0;
232	val = strtoul(name, &ep, 0);
233	if (errno) {
234		err(1, "%s", name);
235	}
236	if (*ep != '\0') {
237		errx(1, "%s: illegal %s name", name, type);
238	}
239	return (val);
240}
241
242static int
243get_int(const char *s)
244{
245	int val;
246	char *ep;
247
248	errno = 0;
249	val = strtoul(s, &ep, 0);
250	if (errno) {
251		err(1, "%s", s);
252	}
253	if (*ep != '\0') {
254		errx(1, "illegal number: %s", s);
255	}
256	return val;
257}
258
259static void
260duplicate_option(const char *ptr)
261{
262	fprintf(stderr, "Syntax error: "
263	    "Duplicate option: '%s'\n", ptr);
264	exit(1);
265}
266
267static void
268usage(int exitcode)
269{
270	fprintf(stderr, ""
271	    "usbconfig - configure the USB subsystem" "\n"
272	    "usage: usbconfig [-u <busnum>] [-a <devaddr>] [-i <ifaceindex>] [-v] [cmds...]" "\n"
273	    "usage: usbconfig -d [ugen]<busnum>.<devaddr> [-i <ifaceindex>] [-v] [cmds...]" "\n"
274	    "commands:" "\n"
275	    "  set_config <cfg_index>" "\n"
276	    "  set_alt <alt_index>" "\n"
277	    "  set_template <template>" "\n"
278	    "  get_template" "\n"
279	    "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
280	    "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
281	    "  add_quirk <quirk>" "\n"
282	    "  remove_quirk <quirk>" "\n"
283	    "  detach_kernel_driver" "\n"
284	    "  dump_quirk_names" "\n"
285	    "  dump_device_quirks" "\n"
286	    "  dump_all_desc" "\n"
287	    "  dump_device_desc" "\n"
288	    "  dump_curr_config_desc" "\n"
289	    "  dump_all_config_desc" "\n"
290	    "  dump_string <index>" "\n"
291	    "  dump_info" "\n"
292	    "  dump_stats" "\n"
293	    "  show_ifdrv" "\n"
294	    "  suspend" "\n"
295	    "  resume" "\n"
296	    "  power_off" "\n"
297	    "  power_save" "\n"
298	    "  power_on" "\n"
299	    "  reset" "\n"
300	    "  list" "\n"
301	    "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
302	);
303	exit(exitcode);
304}
305
306static void
307reset_options(struct options *opt)
308{
309	if (opt->buffer)
310		free(opt->buffer);
311	memset(opt, 0, sizeof(*opt));
312}
313
314static void
315flush_command(struct libusb20_backend *pbe, struct options *opt)
316{
317	struct libusb20_device *pdev = NULL;
318	uint32_t matches = 0;
319	uint8_t dump_any;
320
321	/* check for invalid option combinations */
322	if ((opt->got_suspend +
323	    opt->got_resume +
324	    opt->got_reset +
325	    opt->got_set_config +
326	    opt->got_set_alt +
327	    opt->got_power_save +
328	    opt->got_power_on +
329	    opt->got_power_off) > 1) {
330		err(1, "can only specify one of 'set_config', "
331		    "'set_alt', 'reset', 'suspend', 'resume', "
332		    "'power_save', 'power_on' and 'power_off' "
333		    "at the same time!");
334	}
335	if (opt->got_dump_quirk_names) {
336		opt->got_any--;
337		dump_be_quirk_names(pbe);
338	}
339	if (opt->got_dump_device_quirks) {
340		opt->got_any--;
341		dump_be_dev_quirks(pbe);
342	}
343	if (opt->got_remove_device_quirk) {
344		opt->got_any--;
345		be_dev_remove_quirk(pbe,
346		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
347	}
348	if (opt->got_add_device_quirk) {
349		opt->got_any--;
350		be_dev_add_quirk(pbe,
351		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
352	}
353	if (opt->got_set_template) {
354		opt->got_any--;
355		if (libusb20_be_set_template(pbe, opt->template)) {
356			fprintf(stderr, "Setting USB template %u failed, "
357			    "continuing.\n", opt->template);
358		}
359	}
360	if (opt->got_get_template) {
361		opt->got_any--;
362		if (libusb20_be_get_template(pbe, &opt->template))
363			printf("USB template: <unknown>\n");
364		else
365			printf("USB template: %u\n", opt->template);
366	}
367	if (opt->got_any == 0) {
368		/*
369		 * do not scan through all the devices if there are no valid
370		 * options
371		 */
372		goto done;
373	}
374	while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
375
376		if (opt->got_bus &&
377		    (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
378			continue;
379		}
380		if (opt->got_addr &&
381		    (libusb20_dev_get_address(pdev) != opt->addr)) {
382			continue;
383		}
384		matches++;
385
386		if (opt->got_remove_quirk) {
387			struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
388
389			ddesc = libusb20_dev_get_device_desc(pdev);
390
391			be_dev_remove_quirk(pbe,
392			    ddesc->idVendor, ddesc->idProduct,
393			    ddesc->bcdDevice, ddesc->bcdDevice,
394			    opt->quirkname);
395		}
396
397		if (opt->got_add_quirk) {
398			struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
399
400			ddesc = libusb20_dev_get_device_desc(pdev);
401
402			be_dev_add_quirk(pbe,
403			    ddesc->idVendor, ddesc->idProduct,
404			    ddesc->bcdDevice, ddesc->bcdDevice,
405			    opt->quirkname);
406		}
407
408		if (libusb20_dev_open(pdev, 0)) {
409			err(1, "could not open device");
410		}
411		if (opt->got_dump_string) {
412			dump_string_by_index(pdev, opt->string_index);
413		}
414		if (opt->got_do_request) {
415			uint16_t actlen;
416			uint16_t t;
417
418			if (libusb20_dev_request_sync(pdev, &opt->setup,
419			    opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
420				printf("REQUEST = <ERROR>\n");
421			} else if (!(opt->setup.bmRequestType &
422			    LIBUSB20_ENDPOINT_IN)) {
423				printf("REQUEST = <OK>\n");
424			} else {
425				t = actlen;
426				printf("REQUEST = <");
427				for (t = 0; t != actlen; t++) {
428					printf("0x%02x%s",
429					    ((uint8_t *)opt->buffer)[t],
430					    (t == (actlen - 1)) ? "" : " ");
431				}
432				printf("><");
433				for (t = 0; t != actlen; t++) {
434					char c;
435
436					c = ((uint8_t *)opt->buffer)[t];
437					if ((c != '<') &&
438					    (c != '>') && isprint(c)) {
439						putchar(c);
440					}
441				}
442				printf(">\n");
443			}
444		}
445		if (opt->got_set_config) {
446			if (libusb20_dev_set_config_index(pdev,
447			    opt->config_index)) {
448				err(1, "could not set config index");
449			}
450		}
451		if (opt->got_set_alt) {
452			if (libusb20_dev_set_alt_index(pdev, opt->iface,
453			    opt->alt_index)) {
454				err(1, "could not set alternate setting");
455			}
456		}
457		if (opt->got_reset) {
458			if (libusb20_dev_reset(pdev)) {
459				err(1, "could not reset device");
460			}
461		}
462		if (opt->got_suspend) {
463			if (libusb20_dev_set_power_mode(pdev,
464			    LIBUSB20_POWER_SUSPEND)) {
465				err(1, "could not set suspend");
466			}
467		}
468		if (opt->got_resume) {
469			if (libusb20_dev_set_power_mode(pdev,
470			    LIBUSB20_POWER_RESUME)) {
471				err(1, "could not set resume");
472			}
473		}
474		if (opt->got_power_off) {
475			if (libusb20_dev_set_power_mode(pdev,
476			    LIBUSB20_POWER_OFF)) {
477				err(1, "could not set power OFF");
478			}
479		}
480		if (opt->got_power_save) {
481			if (libusb20_dev_set_power_mode(pdev,
482			    LIBUSB20_POWER_SAVE)) {
483				err(1, "could not set power SAVE");
484			}
485		}
486		if (opt->got_power_on) {
487			if (libusb20_dev_set_power_mode(pdev,
488			    LIBUSB20_POWER_ON)) {
489				err(1, "could not set power ON");
490			}
491		}
492		if (opt->got_detach_kernel_driver) {
493			if (libusb20_dev_detach_kernel_driver(pdev, opt->iface)) {
494				err(1, "could not detach kernel driver");
495			}
496		}
497		dump_any =
498		    (opt->got_dump_all_desc ||
499		    opt->got_dump_device_desc ||
500		    opt->got_dump_curr_config ||
501		    opt->got_dump_all_config ||
502		    opt->got_dump_info ||
503		    opt->got_dump_stats);
504
505		if (opt->got_list || dump_any) {
506			dump_device_info(pdev,
507			    opt->got_show_iface_driver);
508		}
509		if (opt->got_dump_device_desc) {
510			printf("\n");
511			dump_device_desc(pdev);
512		}
513		if (opt->got_dump_all_config) {
514			printf("\n");
515			dump_config(pdev, 1);
516		} else if (opt->got_dump_curr_config) {
517			printf("\n");
518			dump_config(pdev, 0);
519		} else if (opt->got_dump_all_desc) {
520			printf("\n");
521			dump_device_desc(pdev);
522			dump_config(pdev, 1);
523		}
524		if (opt->got_dump_stats) {
525			printf("\n");
526			dump_device_stats(pdev);
527		}
528		if (dump_any) {
529			printf("\n");
530		}
531		if (libusb20_dev_close(pdev)) {
532			err(1, "could not close device");
533		}
534	}
535
536	if (matches == 0) {
537		printf("No device match or lack of permissions.\n");
538	}
539done:
540	reset_options(opt);
541}
542
543int
544main(int argc, char **argv)
545{
546	struct libusb20_backend *pbe;
547	struct options *opt = &options;
548	const char *ptr;
549	int unit;
550	int addr;
551	int n;
552	int t;
553	int ch;
554
555	if (argc < 1) {
556		usage(EX_USAGE);
557	}
558	pbe = libusb20_be_alloc_default();
559	if (pbe == NULL)
560		err(1, "could not access USB backend\n");
561
562	while ((ch = getopt(argc, argv, "a:d:hi:u:v")) != -1) {
563		switch (ch) {
564		case 'a':
565			opt->addr = num_id(optarg, "addr");
566			opt->got_addr = 1;
567			break;
568
569		case 'd':
570			if (strncmp(optarg, "ugen", strlen("ugen")) == 0) {
571				ptr = optarg + strlen("ugen");
572			} else if (strncmp(optarg, "/dev/ugen",
573			   strlen("/dev/ugen")) == 0) {
574				ptr = optarg + strlen("/dev/ugen");
575			} else {
576				ptr = optarg;
577			}
578			if ((sscanf(ptr, "%d.%d",
579			    &unit, &addr) != 2) ||
580			    (unit < 0) || (unit > 65535) ||
581			    (addr < 0) || (addr > 65535)) {
582				errx(1, "cannot "
583				    "parse '%s'", optarg);
584			}
585			opt->bus = unit;
586			opt->addr = addr;
587			opt->got_bus = 1;
588			opt->got_addr = 1;
589			break;
590
591		case 'h':
592			usage(EX_OK);
593			break;
594
595		case 'i':
596			opt->iface = num_id(optarg, "iface");
597			break;
598
599		case 'u':
600			opt->bus = num_id(optarg, "busnum");
601			opt->got_bus = 1;
602			break;
603
604		case 'v':
605			opt->got_dump_device_desc = 1;
606			opt->got_dump_curr_config = 1;
607			opt->got_show_iface_driver = 1;
608			opt->got_any += 2; /* only the dump options count */
609			break;
610
611		default:
612			usage(EX_USAGE);
613		}
614	}
615	argc -= optind;
616	argv += optind;
617
618	for (n = 0; n != argc; n++) {
619
620		/* get number of additional options */
621		t = (argc - n - 1);
622		if (t > 255)
623			t = 255;
624		switch (get_token(argv[n], t)) {
625		case T_ADD_QUIRK:
626			if (opt->got_add_quirk) {
627				flush_command(pbe, opt);
628			}
629			opt->quirkname = argv[n + 1];
630			n++;
631
632			opt->got_add_quirk = 1;
633			opt->got_any++;
634			break;
635
636		case T_REMOVE_QUIRK:
637			if (opt->got_remove_quirk) {
638				flush_command(pbe, opt);
639			}
640			opt->quirkname = argv[n + 1];
641			n++;
642
643			opt->got_remove_quirk = 1;
644			opt->got_any++;
645			break;
646
647		case T_ADD_DEVICE_QUIRK:
648			if (opt->got_add_device_quirk) {
649				flush_command(pbe, opt);
650			}
651			opt->vid = num_id(argv[n + 1], "Vendor ID");
652			opt->pid = num_id(argv[n + 2], "Product ID");
653			opt->lo_rev = num_id(argv[n + 3], "Low Revision");
654			opt->hi_rev = num_id(argv[n + 4], "High Revision");
655			opt->quirkname = argv[n + 5];
656			n += 5;
657
658			opt->got_add_device_quirk = 1;
659			opt->got_any++;
660			break;
661
662		case T_REMOVE_DEVICE_QUIRK:
663			if (opt->got_remove_device_quirk) {
664				flush_command(pbe, opt);
665			}
666			opt->vid = num_id(argv[n + 1], "Vendor ID");
667			opt->pid = num_id(argv[n + 2], "Product ID");
668			opt->lo_rev = num_id(argv[n + 3], "Low Revision");
669			opt->hi_rev = num_id(argv[n + 4], "High Revision");
670			opt->quirkname = argv[n + 5];
671			n += 5;
672			opt->got_remove_device_quirk = 1;
673			opt->got_any++;
674			break;
675
676		case T_DETACH_KERNEL_DRIVER:
677			if (opt->got_detach_kernel_driver)
678				duplicate_option(argv[n]);
679			opt->got_detach_kernel_driver = 1;
680			opt->got_any++;
681			break;
682
683		case T_DUMP_QUIRK_NAMES:
684			if (opt->got_dump_quirk_names)
685				duplicate_option(argv[n]);
686			opt->got_dump_quirk_names = 1;
687			opt->got_any++;
688			break;
689
690		case T_DUMP_DEVICE_QUIRKS:
691			if (opt->got_dump_device_quirks)
692				duplicate_option(argv[n]);
693			opt->got_dump_device_quirks = 1;
694			opt->got_any++;
695			break;
696
697		case T_SHOW_IFACE_DRIVER:
698			opt->got_show_iface_driver = 1;
699			break;
700
701		case T_SET_CONFIG:
702			if (opt->got_set_config)
703				duplicate_option(argv[n]);
704			opt->config_index = num_id(argv[n + 1], "cfg_index");
705			opt->got_set_config = 1;
706			opt->got_any++;
707			n++;
708			break;
709		case T_SET_ALT:
710			if (opt->got_set_alt)
711				duplicate_option(argv[n]);
712			opt->alt_index = num_id(argv[n + 1], "cfg_index");
713			opt->got_set_alt = 1;
714			opt->got_any++;
715			n++;
716			break;
717		case T_SET_TEMPLATE:
718			if (opt->got_set_template)
719				duplicate_option(argv[n]);
720			opt->template = get_int(argv[n + 1]);
721			opt->got_set_template = 1;
722			opt->got_any++;
723			n++;
724			break;
725		case T_GET_TEMPLATE:
726			if (opt->got_get_template)
727				duplicate_option(argv[n]);
728			opt->got_get_template = 1;
729			opt->got_any++;
730			break;
731		case T_DUMP_ALL_DESC:
732			if (opt->got_dump_all_desc)
733				duplicate_option(argv[n]);
734			opt->got_dump_all_desc = 1;
735			opt->got_any++;
736			break;
737		case T_DUMP_DEVICE_DESC:
738			if (opt->got_dump_device_desc)
739				duplicate_option(argv[n]);
740			opt->got_dump_device_desc = 1;
741			opt->got_any++;
742			break;
743		case T_DUMP_CURR_CONFIG_DESC:
744			if (opt->got_dump_curr_config)
745				duplicate_option(argv[n]);
746			opt->got_dump_curr_config = 1;
747			opt->got_any++;
748			break;
749		case T_DUMP_ALL_CONFIG_DESC:
750			if (opt->got_dump_all_config)
751				duplicate_option(argv[n]);
752			opt->got_dump_all_config = 1;
753			opt->got_any++;
754			break;
755		case T_DUMP_INFO:
756			if (opt->got_dump_info)
757				duplicate_option(argv[n]);
758			opt->got_dump_info = 1;
759			opt->got_any++;
760			break;
761		case T_DUMP_STATS:
762			if (opt->got_dump_stats)
763				duplicate_option(argv[n]);
764			opt->got_dump_stats = 1;
765			opt->got_any++;
766			break;
767		case T_DUMP_STRING:
768			if (opt->got_dump_string)
769				duplicate_option(argv[n]);
770			opt->string_index = num_id(argv[n + 1], "str_index");
771			opt->got_dump_string = 1;
772			opt->got_any++;
773			n++;
774			break;
775		case T_SUSPEND:
776			if (opt->got_suspend)
777				duplicate_option(argv[n]);
778			opt->got_suspend = 1;
779			opt->got_any++;
780			break;
781		case T_RESUME:
782			if (opt->got_resume)
783				duplicate_option(argv[n]);
784			opt->got_resume = 1;
785			opt->got_any++;
786			break;
787		case T_POWER_OFF:
788			if (opt->got_power_off)
789				duplicate_option(argv[n]);
790			opt->got_power_off = 1;
791			opt->got_any++;
792			break;
793		case T_POWER_SAVE:
794			if (opt->got_power_save)
795				duplicate_option(argv[n]);
796			opt->got_power_save = 1;
797			opt->got_any++;
798			break;
799		case T_POWER_ON:
800			if (opt->got_power_on)
801				duplicate_option(argv[n]);
802			opt->got_power_on = 1;
803			opt->got_any++;
804			break;
805		case T_RESET:
806			if (opt->got_reset)
807				duplicate_option(argv[n]);
808			opt->got_reset = 1;
809			opt->got_any++;
810			break;
811		case T_LIST:
812			if (opt->got_list)
813				duplicate_option(argv[n]);
814			opt->got_list = 1;
815			opt->got_any++;
816			break;
817		case T_DO_REQUEST:
818			if (opt->got_do_request)
819				duplicate_option(argv[n]);
820			LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
821			opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
822			opt->setup.bRequest = num_id(argv[n + 2], "bReq");
823			opt->setup.wValue = num_id(argv[n + 3], "wVal");
824			opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
825			opt->setup.wLength = num_id(argv[n + 5], "wLen");
826			if (opt->setup.wLength != 0) {
827				opt->buffer = malloc(opt->setup.wLength);
828			} else {
829				opt->buffer = NULL;
830			}
831
832			n += 5;
833
834			if (!(opt->setup.bmRequestType &
835			    LIBUSB20_ENDPOINT_IN)) {
836				/* copy in data */
837				t = (argc - n - 1);
838				if (t < opt->setup.wLength) {
839					err(1, "request data missing");
840				}
841				t = opt->setup.wLength;
842				while (t--) {
843					((uint8_t *)opt->buffer)[t] =
844					    num_id(argv[n + t + 1], "req_data");
845				}
846				n += opt->setup.wLength;
847			}
848			opt->got_do_request = 1;
849			opt->got_any++;
850			break;
851		default:
852			if (n == 1) {
853				ptr = argv[n];
854
855				if ((ptr[0] == 'u') &&
856				    (ptr[1] == 'g') &&
857				    (ptr[2] == 'e') &&
858				    (ptr[3] == 'n'))
859					ptr += 4;
860
861				if ((sscanf(ptr, "%d.%d",
862				    &unit, &addr) != 2) ||
863				    (unit < 0) || (unit > 65535) ||
864				    (addr < 0) || (addr > 65535)) {
865					usage(EX_USAGE);
866					break;
867				}
868
869				opt->bus = unit;
870				opt->addr = addr;
871				opt->got_bus = 1;
872				opt->got_addr = 1;
873				break;
874			}
875			usage(EX_USAGE);
876			break;
877		}
878	}
879	if (opt->got_any) {
880		/* flush out last command */
881		flush_command(pbe, opt);
882	} else {
883		/* list all the devices */
884		opt->got_list = 1;
885		opt->got_any++;
886		flush_command(pbe, opt);
887	}
888	/* release data */
889	libusb20_be_free(pbe);
890
891	return (0);
892}
893