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trezor-firmware/firmware/usb.c
Pavol Rusnak b20336e82d
Revert WinUSB feature
This reverts the following range of commits:
68168393b9ea61328f4bb43bc3059ab32c4be2e9..ab76828e16b552c82f468e5d89f1af0645258995

Revert "update usb descriptors"
This reverts commit ab76828e16.

Revert "trezorhal: reply with winusb guid just for the main interface (0)"
This reverts commit 6acfc5d1b3.

Revert "winusb: fix WINUSB_EXTRA_STRING"
This reverts commit 966d8cb4ce.

Revert "winusb: cleanup DeviceInterfaceGUIDs usage"
This reverts commit 56c5a46095.

Revert "make winusb_string_descriptor const"
This reverts commit 132cc4b474.

Revert "webusb: remove unused constants"
This reverts commit 38b4d507bc.

Revert "bootloader: remove debug"
This reverts commit 56d3cbe2e9.

Revert "Bootloader - Switch from HID to WebUSB"
This reverts commit a22abfe90b.

Revert "Switch from HID to WebUSB"
This reverts commit cb067bd14c.

Revert "Add WinUSB, WebUSB, USB2.1 to build"
This reverts commit 05e218bcb8.

Revert "Add WebUSB descriptors"
This reverts commit a062127cef.

Revert "Add WinUSB (WebUSB preparation)"
This reverts commit e6981e85cd.
2018-03-14 00:37:08 +01:00

455 lines
13 KiB
C

/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/usb/usbd.h>
#include <libopencm3/usb/hid.h>
#include "trezor.h"
#include "usb.h"
#include "debug.h"
#include "messages.h"
#include "u2f.h"
#include "storage.h"
#include "util.h"
#include "timer.h"
#define USB_INTERFACE_INDEX_MAIN 0
#if DEBUG_LINK
#define USB_INTERFACE_INDEX_DEBUG 1
#define USB_INTERFACE_INDEX_U2F 2
#else
#define USB_INTERFACE_INDEX_U2F 1
#endif
#define ENDPOINT_ADDRESS_IN (0x81)
#define ENDPOINT_ADDRESS_OUT (0x01)
#define ENDPOINT_ADDRESS_DEBUG_IN (0x82)
#define ENDPOINT_ADDRESS_DEBUG_OUT (0x02)
#define ENDPOINT_ADDRESS_U2F_IN (0x83)
#define ENDPOINT_ADDRESS_U2F_OUT (0x03)
#define USB_STRINGS \
X(MANUFACTURER, "SatoshiLabs") \
X(PRODUCT, "TREZOR") \
X(SERIAL_NUMBER, storage_uuid_str) \
X(INTERFACE_MAIN, "TREZOR Interface") \
X(INTERFACE_DEBUG, "TREZOR Debug Link Interface") \
X(INTERFACE_U2F, "U2F Interface")
#define X(name, value) USB_STRING_##name,
enum {
USB_STRING_LANGID_CODES, // LANGID code array
USB_STRINGS
};
#undef X
#define X(name, value) value,
static const char *usb_strings[] = {
USB_STRINGS
};
#undef X
static const struct usb_device_descriptor dev_descr = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
.bMaxPacketSize0 = 64,
.idVendor = 0x534c,
.idProduct = 0x0001,
.bcdDevice = 0x0100,
.iManufacturer = USB_STRING_MANUFACTURER,
.iProduct = USB_STRING_PRODUCT,
.iSerialNumber = USB_STRING_SERIAL_NUMBER,
.bNumConfigurations = 1,
};
static const uint8_t hid_report_descriptor[] = {
0x06, 0x00, 0xff, // USAGE_PAGE (Vendor Defined)
0x09, 0x01, // USAGE (1)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x20, // USAGE (Input Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x40, // REPORT_COUNT (64)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x09, 0x21, // USAGE (Output Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x40, // REPORT_COUNT (64)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0xc0 // END_COLLECTION
};
#if DEBUG_LINK
static const uint8_t hid_report_descriptor_debug[] = {
0x06, 0x01, 0xff, // USAGE_PAGE (Vendor Defined)
0x09, 0x01, // USAGE (1)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x20, // USAGE (Input Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x40, // REPORT_COUNT (64)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x09, 0x21, // USAGE (Output Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x40, // REPORT_COUNT (64)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0xc0 // END_COLLECTION
};
#endif
static const uint8_t hid_report_descriptor_u2f[] = {
0x06, 0xd0, 0xf1, // USAGE_PAGE (FIDO Alliance)
0x09, 0x01, // USAGE (U2F HID Authenticator Device)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x20, // USAGE (Input Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x40, // REPORT_COUNT (64)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x09, 0x21, // USAGE (Output Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x40, // REPORT_COUNT (64)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0xc0 // END_COLLECTION
};
static const struct {
struct usb_hid_descriptor hid_descriptor;
struct {
uint8_t bReportDescriptorType;
uint16_t wDescriptorLength;
} __attribute__((packed)) hid_report;
} __attribute__((packed)) hid_function = {
.hid_descriptor = {
.bLength = sizeof(hid_function),
.bDescriptorType = USB_DT_HID,
.bcdHID = 0x0111,
.bCountryCode = 0,
.bNumDescriptors = 1,
},
.hid_report = {
.bReportDescriptorType = USB_DT_REPORT,
.wDescriptorLength = sizeof(hid_report_descriptor),
}
};
static const struct {
struct usb_hid_descriptor hid_descriptor_u2f;
struct {
uint8_t bReportDescriptorType;
uint16_t wDescriptorLength;
} __attribute__((packed)) hid_report_u2f;
} __attribute__((packed)) hid_function_u2f = {
.hid_descriptor_u2f = {
.bLength = sizeof(hid_function_u2f),
.bDescriptorType = USB_DT_HID,
.bcdHID = 0x0111,
.bCountryCode = 0,
.bNumDescriptors = 1,
},
.hid_report_u2f = {
.bReportDescriptorType = USB_DT_REPORT,
.wDescriptorLength = sizeof(hid_report_descriptor_u2f),
}
};
static const struct usb_endpoint_descriptor hid_endpoints[2] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_OUT,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}};
static const struct usb_interface_descriptor hid_iface[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = USB_INTERFACE_INDEX_MAIN,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = USB_STRING_INTERFACE_MAIN,
.endpoint = hid_endpoints,
.extra = &hid_function,
.extralen = sizeof(hid_function),
}};
static const struct usb_endpoint_descriptor hid_endpoints_u2f[2] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_U2F_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 2,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_U2F_OUT,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 2,
}};
static const struct usb_interface_descriptor hid_iface_u2f[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = USB_INTERFACE_INDEX_U2F,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = USB_STRING_INTERFACE_U2F,
.endpoint = hid_endpoints_u2f,
.extra = &hid_function_u2f,
.extralen = sizeof(hid_function_u2f),
}};
#if DEBUG_LINK
static const struct usb_endpoint_descriptor hid_endpoints_debug[2] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_DEBUG_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_DEBUG_OUT,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}};
static const struct usb_interface_descriptor hid_iface_debug[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = USB_INTERFACE_INDEX_DEBUG,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = USB_STRING_INTERFACE_DEBUG,
.endpoint = hid_endpoints_debug,
.extra = &hid_function,
.extralen = sizeof(hid_function),
}};
#endif
static const struct usb_interface ifaces[] = {{
.num_altsetting = 1,
.altsetting = hid_iface,
#if DEBUG_LINK
}, {
.num_altsetting = 1,
.altsetting = hid_iface_debug,
#endif
}, {
.num_altsetting = 1,
.altsetting = hid_iface_u2f,
}};
static const struct usb_config_descriptor config = {
.bLength = USB_DT_CONFIGURATION_SIZE,
.bDescriptorType = USB_DT_CONFIGURATION,
.wTotalLength = 0,
#if DEBUG_LINK
.bNumInterfaces = 3,
#else
.bNumInterfaces = 2,
#endif
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = 0x80,
.bMaxPower = 0x32,
.interface = ifaces,
};
static int hid_control_request(usbd_device *dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, usbd_control_complete_callback *complete)
{
(void)complete;
(void)dev;
if ((req->bmRequestType != 0x81) ||
(req->bRequest != USB_REQ_GET_DESCRIPTOR) ||
(req->wValue != 0x2200))
return 0;
if (req->wIndex == USB_INTERFACE_INDEX_U2F) {
debugLog(0, "", "hid_control_request u2f");
*buf = (uint8_t *)hid_report_descriptor_u2f;
*len = sizeof(hid_report_descriptor_u2f);
return 1;
}
#if DEBUG_LINK
if (req->wIndex == USB_INTERFACE_INDEX_DEBUG) {
debugLog(0, "", "hid_control_request debug");
*buf = (uint8_t *)hid_report_descriptor_debug;
*len = sizeof(hid_report_descriptor_debug);
return 1;
}
#endif
debugLog(0, "", "hid_control_request main");
*buf = (uint8_t *)hid_report_descriptor;
*len = sizeof(hid_report_descriptor);
return 1;
}
static volatile char tiny = 0;
static void hid_rx_callback(usbd_device *dev, uint8_t ep)
{
(void)ep;
static CONFIDENTIAL uint8_t buf[64] __attribute__ ((aligned(4)));
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_OUT, buf, 64) != 64) return;
debugLog(0, "", "hid_rx_callback");
if (!tiny) {
msg_read(buf, 64);
} else {
msg_read_tiny(buf, 64);
}
}
static void hid_u2f_rx_callback(usbd_device *dev, uint8_t ep)
{
(void)ep;
static CONFIDENTIAL uint8_t buf[64] __attribute__ ((aligned(4)));
debugLog(0, "", "hid_u2f_rx_callback");
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_U2F_OUT, buf, 64) != 64) return;
u2fhid_read(tiny, (const U2FHID_FRAME *) (void*) buf);
}
#if DEBUG_LINK
static void hid_debug_rx_callback(usbd_device *dev, uint8_t ep)
{
(void)ep;
static CONFIDENTIAL uint8_t buf[64] __attribute__ ((aligned(4)));
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_DEBUG_OUT, buf, 64) != 64) return;
debugLog(0, "", "hid_debug_rx_callback");
if (!tiny) {
msg_debug_read(buf, 64);
} else {
msg_read_tiny(buf, 64);
}
}
#endif
static void hid_set_config(usbd_device *dev, uint16_t wValue)
{
(void)wValue;
usbd_ep_setup(dev, ENDPOINT_ADDRESS_IN, USB_ENDPOINT_ATTR_INTERRUPT, 64, 0);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_OUT, USB_ENDPOINT_ATTR_INTERRUPT, 64, hid_rx_callback);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_U2F_IN, USB_ENDPOINT_ATTR_INTERRUPT, 64, 0);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_U2F_OUT, USB_ENDPOINT_ATTR_INTERRUPT, 64, hid_u2f_rx_callback);
#if DEBUG_LINK
usbd_ep_setup(dev, ENDPOINT_ADDRESS_DEBUG_IN, USB_ENDPOINT_ATTR_INTERRUPT, 64, 0);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_DEBUG_OUT, USB_ENDPOINT_ATTR_INTERRUPT, 64, hid_debug_rx_callback);
#endif
usbd_register_control_callback(
dev,
USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE,
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
hid_control_request);
}
static usbd_device *usbd_dev;
static uint8_t usbd_control_buffer[128];
void usbInit(void)
{
usbd_dev = usbd_init(&otgfs_usb_driver, &dev_descr, &config, usb_strings, sizeof(usb_strings) / sizeof(*usb_strings), usbd_control_buffer, sizeof(usbd_control_buffer));
usbd_register_set_config_callback(usbd_dev, hid_set_config);
}
void usbPoll(void)
{
static const uint8_t *data;
// poll read buffer
usbd_poll(usbd_dev);
// write pending data
data = msg_out_data();
if (data) {
while ( usbd_ep_write_packet(usbd_dev, ENDPOINT_ADDRESS_IN, data, 64) != 64 ) {}
}
data = u2f_out_data();
if (data) {
while ( usbd_ep_write_packet(usbd_dev, ENDPOINT_ADDRESS_U2F_IN, data, 64) != 64 ) {}
}
#if DEBUG_LINK
// write pending debug data
data = msg_debug_out_data();
if (data) {
while ( usbd_ep_write_packet(usbd_dev, ENDPOINT_ADDRESS_DEBUG_IN, data, 64) != 64 ) {}
}
#endif
}
void usbReconnect(void)
{
usbd_disconnect(usbd_dev, 1);
delay(1000);
usbd_disconnect(usbd_dev, 0);
}
char usbTiny(char set)
{
char old = tiny;
tiny = set;
return old;
}
void usbSleep(uint32_t millis)
{
uint32_t start = timer_ms();
while ((timer_ms() - start) < millis) {
usbd_poll(usbd_dev);
}
}