mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-30 18:10:56 +00:00
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
static void send_msg_success(usbd_device *dev) {
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uint8_t response[64];
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memzero(response, sizeof(response));
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// response: Success message (id 2), payload len 0
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memcpy(response,
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// header
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"?##"
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// msg_id
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"\x00\x02"
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// msg_size
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"\x00\x00\x00\x00",
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9);
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while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {
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}
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}
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static void send_msg_failure(usbd_device *dev, uint8_t code) {
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uint8_t response[64];
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memzero(response, sizeof(response));
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// response: Failure message (id 3), payload len 2
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memcpy(response,
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// header
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"?##"
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// msg_id
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"\x00\x03"
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// msg_size
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"\x00\x00\x00\x02"
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// code field id
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"\x08",
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10);
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// assign code value
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response[10] = code;
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while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {
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}
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}
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static void send_msg_features(usbd_device *dev) {
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uint8_t response[64];
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memzero(response, sizeof(response));
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// response: Features message (id 17), payload len 26 / 41
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// - vendor = "trezor.io"
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// - major_version = VERSION_MAJOR
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// - minor_version = VERSION_MINOR
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// - patch_version = VERSION_PATCH
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// - bootloader_mode = True
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// - firmware_present = True/False
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// - model = "1"
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// ? fw_version_major = version_major
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// ? fw_version_minor = version_minor
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// ? fw_version_patch = version_patch
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const bool firmware_present = firmware_present_new();
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const image_header *current_hdr = (const image_header *)FLASH_FWHEADER_START;
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uint32_t version = firmware_present ? current_hdr->version : 0;
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// clang-format off
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const uint8_t feature_bytes[] = {
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0x0a, // vendor field
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0x09, // vendor length
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't', 'r', 'e', 'z', 'o', 'r', '.', 'i', 'o',
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0x10, VERSION_MAJOR,
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0x18, VERSION_MINOR,
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0x20, VERSION_PATCH,
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0x28, 0x01, // bootloader_mode
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0x90, 0x01, // firmware_present field
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firmware_present ? 0x01 : 0x00,
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0xaa, 0x01, // model field
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0x01, // model length
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'1',
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};
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const uint8_t version_bytes[] = {
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// fw_version_major
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0xb0, 0x01, version & 0xff,
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// fw_version_minor
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0xb8, 0x01, (version >> 8) & 0xff,
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// fw_version_patch
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0xc0, 0x01, (version >> 16) & 0xff,
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};
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uint8_t header_bytes[] = {
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// header
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'?', '#', '#',
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// msg_id
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0x00, 0x11,
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// msg_size
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0x00, 0x00, 0x00, sizeof(feature_bytes) + (firmware_present ? sizeof(version_bytes) : 0),
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};
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// clang-format on
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// Check that the response will fit into an USB packet, and also that the
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// sizeof expression above fits into a single byte
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_Static_assert(
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sizeof(feature_bytes) + sizeof(version_bytes) + sizeof(header_bytes) <=
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64,
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"Features response too long");
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memcpy(response, header_bytes, sizeof(header_bytes));
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memcpy(response + sizeof(header_bytes), feature_bytes, sizeof(feature_bytes));
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if (firmware_present) {
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memcpy(response + sizeof(header_bytes) + sizeof(feature_bytes),
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version_bytes, sizeof(version_bytes));
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}
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while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {
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}
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}
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static void send_msg_buttonrequest_firmwarecheck(usbd_device *dev) {
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uint8_t response[64];
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memzero(response, sizeof(response));
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// response: ButtonRequest message (id 26), payload len 2
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// - code = ButtonRequest_FirmwareCheck (9)
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memcpy(response,
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// header
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"?##"
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// msg_id
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"\x00\x1a"
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// msg_size
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"\x00\x00\x00\x02"
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// data
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"\x08"
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"\x09",
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11);
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while (usbd_ep_write_packet(dev, ENDPOINT_ADDRESS_IN, response, 64) != 64) {
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}
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}
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