mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-27 08:38:07 +00:00
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
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* Copyright (c) 2016, Devan Lai
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*
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* Permission to use, copy, modify, and/or distribute this software
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* for any purpose with or without fee is hereby granted, provided
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* that the above copyright notice and this permission notice
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* appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <string.h>
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#include "usb21_standard.h"
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#include "util.h"
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#include "webusb.h"
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const struct webusb_platform_descriptor webusb_platform_capability_descriptor =
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{.bLength = WEBUSB_PLATFORM_DESCRIPTOR_SIZE,
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.bDescriptorType = USB_DT_DEVICE_CAPABILITY,
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.bDevCapabilityType = USB_DC_PLATFORM,
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.bReserved = 0,
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.platformCapabilityUUID = WEBUSB_UUID,
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.bcdVersion = 0x0100,
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.bVendorCode = WEBUSB_VENDOR_CODE,
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.iLandingPage = 1};
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static const char* webusb_https_url;
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static enum usbd_request_return_codes webusb_control_vendor_request(
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usbd_device* usbd_dev, struct usb_setup_data* req, uint8_t** buf,
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uint16_t* len, usbd_control_complete_callback* complete) {
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(void)complete;
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(void)usbd_dev;
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wait_random();
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if (req->bRequest != WEBUSB_VENDOR_CODE) {
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return USBD_REQ_NEXT_CALLBACK;
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}
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int status = USBD_REQ_NOTSUPP;
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switch (req->wIndex) {
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case WEBUSB_REQ_GET_URL: {
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struct webusb_url_descriptor* url = (struct webusb_url_descriptor*)(*buf);
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uint16_t index = req->wValue;
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if (index == 0) {
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return USBD_REQ_NOTSUPP;
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}
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if (index == 1) {
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size_t url_len = strlen(webusb_https_url);
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url->bLength = WEBUSB_DT_URL_DESCRIPTOR_SIZE + url_len;
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url->bDescriptorType = WEBUSB_DT_URL;
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url->bScheme = WEBUSB_URL_SCHEME_HTTPS;
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memcpy(&url->URL, webusb_https_url, url_len);
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*len = MIN_8bits(*len, url->bLength);
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status = USBD_REQ_HANDLED;
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} else {
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// TODO: stall instead?
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status = USBD_REQ_NOTSUPP;
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}
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break;
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}
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default: {
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status = USBD_REQ_NOTSUPP;
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break;
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}
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}
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return status;
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}
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static void webusb_set_config(usbd_device* usbd_dev, uint16_t wValue) {
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(void)wValue;
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usbd_register_control_callback(usbd_dev,
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USB_REQ_TYPE_VENDOR | USB_REQ_TYPE_DEVICE,
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USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
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webusb_control_vendor_request);
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}
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void webusb_setup(usbd_device* usbd_dev, const char* https_url) {
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webusb_https_url = https_url;
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usbd_register_set_config_callback(usbd_dev, webusb_set_config);
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}
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