mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-14 11:39:03 +00:00
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2016, Devan Lai
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software
|
|
* for any purpose with or without fee is hereby granted, provided
|
|
* that the above copyright notice and this permission notice
|
|
* appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
|
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
|
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
|
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
|
|
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "random_delays.h"
|
|
#include "usb21_standard.h"
|
|
#include "util.h"
|
|
#include "webusb.h"
|
|
|
|
const struct webusb_platform_descriptor
|
|
webusb_platform_capability_descriptor_landing = {
|
|
.bLength = WEBUSB_PLATFORM_DESCRIPTOR_SIZE,
|
|
.bDescriptorType = USB_DT_DEVICE_CAPABILITY,
|
|
.bDevCapabilityType = USB_DC_PLATFORM,
|
|
.bReserved = 0,
|
|
.platformCapabilityUUID = WEBUSB_UUID,
|
|
.bcdVersion = 0x0100,
|
|
.bVendorCode = WEBUSB_VENDOR_CODE,
|
|
.iLandingPage = 1};
|
|
|
|
const struct webusb_platform_descriptor
|
|
webusb_platform_capability_descriptor_no_landing = {
|
|
.bLength = WEBUSB_PLATFORM_DESCRIPTOR_SIZE,
|
|
.bDescriptorType = USB_DT_DEVICE_CAPABILITY,
|
|
.bDevCapabilityType = USB_DC_PLATFORM,
|
|
.bReserved = 0,
|
|
.platformCapabilityUUID = WEBUSB_UUID,
|
|
.bcdVersion = 0x0100,
|
|
.bVendorCode = WEBUSB_VENDOR_CODE,
|
|
.iLandingPage = 0};
|
|
|
|
static const char* webusb_https_url;
|
|
|
|
static enum usbd_request_return_codes webusb_control_vendor_request(
|
|
usbd_device* usbd_dev, struct usb_setup_data* req, uint8_t** buf,
|
|
uint16_t* len, usbd_control_complete_callback* complete) {
|
|
(void)complete;
|
|
(void)usbd_dev;
|
|
|
|
wait_random();
|
|
|
|
if (req->bRequest != WEBUSB_VENDOR_CODE) {
|
|
return USBD_REQ_NEXT_CALLBACK;
|
|
}
|
|
|
|
int status = USBD_REQ_NOTSUPP;
|
|
switch (req->wIndex) {
|
|
case WEBUSB_REQ_GET_URL: {
|
|
struct webusb_url_descriptor* url = (struct webusb_url_descriptor*)(*buf);
|
|
uint16_t index = req->wValue;
|
|
if (index == 0) {
|
|
return USBD_REQ_NOTSUPP;
|
|
}
|
|
|
|
if (index == 1) {
|
|
size_t url_len = strlen(webusb_https_url);
|
|
url->bLength = WEBUSB_DT_URL_DESCRIPTOR_SIZE + url_len;
|
|
url->bDescriptorType = WEBUSB_DT_URL;
|
|
url->bScheme = WEBUSB_URL_SCHEME_HTTPS;
|
|
memcpy(&url->URL, webusb_https_url, url_len);
|
|
*len = MIN_8bits(*len, url->bLength);
|
|
status = USBD_REQ_HANDLED;
|
|
} else {
|
|
// TODO: stall instead?
|
|
status = USBD_REQ_NOTSUPP;
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
status = USBD_REQ_NOTSUPP;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static void webusb_set_config(usbd_device* usbd_dev, uint16_t wValue) {
|
|
(void)wValue;
|
|
usbd_register_control_callback(usbd_dev,
|
|
USB_REQ_TYPE_VENDOR | USB_REQ_TYPE_DEVICE,
|
|
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
|
|
webusb_control_vendor_request);
|
|
}
|
|
|
|
void webusb_setup(usbd_device* usbd_dev, const char* https_url) {
|
|
webusb_https_url = https_url;
|
|
|
|
usbd_register_set_config_callback(usbd_dev, webusb_set_config);
|
|
}
|