2  * Copyright (c) 2019-2022 Yubico AB. All rights reserved.
3  * Use of this source code is governed by a BSD-style
5  * SPDX-License-Identifier: BSD-2-Clause
37 	HANDLE		dev;  member
46 is_fido(HANDLE dev)  in is_fido()  argument
52 	if (HidD_GetPreparsedData(dev, &data) == false) {  in is_fido()
71 get_report_len(HANDLE dev, int dir, size_t *report_len)  in get_report_len()  argument
76 	int			ok = -1;  in get_report_len()
78 	if (HidD_GetPreparsedData(dev, &data) == false) {  in get_report_len()
107 get_id(HANDLE dev, int16_t *vendor_id, int16_t *product_id)  in get_id()  argument
113 	if (HidD_GetAttributes(dev, &attr) == false) {  in get_id()
115 		return (-1);  in get_id()
125 get_manufacturer(HANDLE dev, char **manufacturer)  in get_manufacturer()  argument
129 	int	ok = -1;  in get_manufacturer()
133 	if (HidD_GetManufacturerString(dev, &buf, sizeof(buf)) == false) {  in get_manufacturer()
139 	    -1, NULL, 0, NULL, NULL)) <= 0 || utf8_len > 128) {  in get_manufacturer()
149 	if (WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, buf, -1,  in get_manufacturer()
166 get_product(HANDLE dev, char **product)  in get_product()  argument
170 	int	ok = -1;  in get_product()
174 	if (HidD_GetProductString(dev, &buf, sizeof(buf)) == false) {  in get_product()
180 	    -1, NULL, 0, NULL, NULL)) <= 0 || utf8_len > 128) {  in get_product()
190 	if (WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, buf, -1,  in get_product()
233 	ifdetail->cbSize = sizeof(*ifdetail);  in get_path()
242 	if ((path = strdup(ifdetail->DevicePath)) == NULL) {  in get_path()
302 	HANDLE	dev = INVALID_HANDLE_VALUE;  in copy_info()  local
303 	int	ok = -1;  in copy_info()
307 	if ((di->path = get_path(devinfo, ifdata)) == NULL) {  in copy_info()
312 	fido_log_debug("%s: path=%s", __func__, di->path);  in copy_info()
321 	dev = CreateFileA(di->path, 0, FILE_SHARE_READ | FILE_SHARE_WRITE,  in copy_info()
323 	if (dev == INVALID_HANDLE_VALUE) {  in copy_info()
328 	if (is_fido(dev) == false) {  in copy_info()
333 	if (get_id(dev, &di->vendor_id, &di->product_id) < 0) {  in copy_info()
338 	if (get_manufacturer(dev, &di->manufacturer) < 0) {  in copy_info()
340 		di->manufacturer = strdup("");  in copy_info()
343 	if (get_product(dev, &di->product) < 0) {  in copy_info()
345 		di->product = strdup("");  in copy_info()
348 	if (di->manufacturer == NULL || di->product == NULL) {  in copy_info()
355 	if (dev != INVALID_HANDLE_VALUE)  in copy_info()
356 		CloseHandle(dev);  in copy_info()
359 		free(di->path);  in copy_info()
360 		free(di->manufacturer);  in copy_info()
361 		free(di->product);  in copy_info()
422 	ctx->dev = CreateFileA(path, GENERIC_READ | GENERIC_WRITE,  in fido_hid_open()
426 	if (ctx->dev == INVALID_HANDLE_VALUE) {  in fido_hid_open()
431 	if ((ctx->overlap.hEvent = CreateEventA(NULL, FALSE, FALSE,  in fido_hid_open()
438 	if (get_report_len(ctx->dev, 0, &ctx->report_in_len) < 0 ||  in fido_hid_open()
439 	    get_report_len(ctx->dev, 1, &ctx->report_out_len) < 0) {  in fido_hid_open()
449 fido_hid_close(void *handle)  in fido_hid_close()  argument
451 	struct hid_win *ctx = handle;  in fido_hid_close()
453 	if (ctx->overlap.hEvent != NULL) {  in fido_hid_close()
454 		if (ctx->report_pending) {  in fido_hid_close()
456 			if (CancelIoEx(ctx->dev, &ctx->overlap) == 0)  in fido_hid_close()
460 		CloseHandle(ctx->overlap.hEvent);  in fido_hid_close()
463 	explicit_bzero(ctx->report, sizeof(ctx->report));  in fido_hid_close()
464 	CloseHandle(ctx->dev);  in fido_hid_close()
469 fido_hid_set_sigmask(void *handle, const fido_sigset_t *sigmask)  in fido_hid_set_sigmask()  argument
471 	(void)handle;  in fido_hid_set_sigmask()
478 fido_hid_read(void *handle, unsigned char *buf, size_t len, int ms)  in fido_hid_read()  argument
480 	struct hid_win	*ctx = handle;  in fido_hid_read()
483 	if (len != ctx->report_in_len - 1 || len > sizeof(ctx->report) - 1) {  in fido_hid_read()
485 		return (-1);  in fido_hid_read()
488 	if (ctx->report_pending == 0) {  in fido_hid_read()
489 		memset(&ctx->report, 0, sizeof(ctx->report));  in fido_hid_read()
490 		ResetEvent(ctx->overlap.hEvent);  in fido_hid_read()
491 		if (ReadFile(ctx->dev, ctx->report, (DWORD)(len + 1), &n,  in fido_hid_read()
492 		    &ctx->overlap) == 0 && GetLastError() != ERROR_IO_PENDING) {  in fido_hid_read()
493 			CancelIo(ctx->dev);  in fido_hid_read()
495 			return (-1);  in fido_hid_read()
497 		ctx->report_pending = 1;  in fido_hid_read()
500 	if (ms > -1 && WaitForSingleObject(ctx->overlap.hEvent,  in fido_hid_read()
504 	ctx->report_pending = 0;  in fido_hid_read()
506 	if (GetOverlappedResult(ctx->dev, &ctx->overlap, &n, TRUE) == 0) {  in fido_hid_read()
508 		return (-1);  in fido_hid_read()
514 		return (-1);  in fido_hid_read()
517 	memcpy(buf, ctx->report + 1, len);  in fido_hid_read()
518 	explicit_bzero(ctx->report, sizeof(ctx->report));  in fido_hid_read()
524 fido_hid_write(void *handle, const unsigned char *buf, size_t len)  in fido_hid_write()  argument
526 	struct hid_win	*ctx = handle;  in fido_hid_write()
532 	if (len != ctx->report_out_len) {  in fido_hid_write()
534 		return (-1);  in fido_hid_write()
537 	if (WriteFile(ctx->dev, buf, (DWORD)len, NULL, &overlap) == 0 &&  in fido_hid_write()
540 		return (-1);  in fido_hid_write()
543 	if (GetOverlappedResult(ctx->dev, &overlap, &n, TRUE) == 0) {  in fido_hid_write()
545 		return (-1);  in fido_hid_write()
551 		return (-1);  in fido_hid_write()
558 fido_hid_report_in_len(void *handle)  in fido_hid_report_in_len()  argument
560 	struct hid_win *ctx = handle;  in fido_hid_report_in_len()
562 	return (ctx->report_in_len - 1);  in fido_hid_report_in_len()
566 fido_hid_report_out_len(void *handle)  in fido_hid_report_out_len()  argument
568 	struct hid_win *ctx = handle;  in fido_hid_report_out_len()
570 	return (ctx->report_out_len - 1);  in fido_hid_report_out_len()