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/*
* Copyright 1999-2021 Logitech, Inc.
* All Rights Reserved
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include <fwupdplugin.h>
#include "fu-logitech-bulkcontroller-common.h"
#include "usb_msg.pb-c.h"
static void
fu_logitech_bulkcontroller_proto_manager_set_header(FuLogitechBulkcontrollerDevice *self,
Logi__Device__Proto__Header *header_msg)
{
gint64 timestamp_tv;
g_return_if_fail(header_msg != NULL);
/* make predictable */
if (fu_device_has_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_EMULATED) ||
fu_device_has_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_EMULATION_TAG)) {
header_msg->id = 0;
header_msg->timestamp = g_strdup("0");
return;
}
timestamp_tv = g_get_real_time();
header_msg->id = g_uuid_string_random();
header_msg->timestamp = g_strdup_printf("%" G_GINT64_FORMAT, timestamp_tv / 1000);
}
GByteArray *
fu_logitech_bulkcontroller_proto_manager_generate_get_device_info_request(
FuLogitechBulkcontrollerDevice *self)
{
GByteArray *buf = g_byte_array_new();
Logi__Device__Proto__Header header_msg = LOGI__DEVICE__PROTO__HEADER__INIT;
Logi__Device__Proto__GetDeviceInfoRequest get_deviceinfo_msg =
LOGI__DEVICE__PROTO__GET_DEVICE_INFO_REQUEST__INIT;
Logi__Device__Proto__UsbMsg usb_msg = LOGI__DEVICE__PROTO__USB_MSG__INIT;
Logi__Device__Proto__Request request_msg = LOGI__DEVICE__PROTO__REQUEST__INIT;
request_msg.payload_case = LOGI__DEVICE__PROTO__REQUEST__PAYLOAD_GET_DEVICE_INFO_REQUEST;
request_msg.get_device_info_request = &get_deviceinfo_msg;
fu_logitech_bulkcontroller_proto_manager_set_header(self, &header_msg);
usb_msg.header = &header_msg;
usb_msg.message_case = LOGI__DEVICE__PROTO__USB_MSG__MESSAGE_REQUEST;
usb_msg.request = &request_msg;
fu_byte_array_set_size(buf, logi__device__proto__usb_msg__get_packed_size(&usb_msg), 0x00);
logi__device__proto__usb_msg__pack(&usb_msg, (unsigned char *)buf->data);
g_free(header_msg.id);
g_free(header_msg.timestamp);
return buf;
}
GByteArray *
fu_logitech_bulkcontroller_proto_manager_generate_transition_to_device_mode_request(
FuLogitechBulkcontrollerDevice *self)
{
GByteArray *buf = g_byte_array_new();
Logi__Device__Proto__Header header_msg = LOGI__DEVICE__PROTO__HEADER__INIT;
Logi__Device__Proto__TransitionToDeviceModeRequest transition_to_device_mode_msg =
LOGI__DEVICE__PROTO__TRANSITION_TO_DEVICE_MODE_REQUEST__INIT;
Logi__Device__Proto__UsbMsg usb_msg = LOGI__DEVICE__PROTO__USB_MSG__INIT;
Logi__Device__Proto__Request request_msg = LOGI__DEVICE__PROTO__REQUEST__INIT;
request_msg.payload_case =
LOGI__DEVICE__PROTO__REQUEST__PAYLOAD_TRANSITION_TO_DEVICEMODE_REQUEST;
request_msg.transition_to_devicemode_request = &transition_to_device_mode_msg;
fu_logitech_bulkcontroller_proto_manager_set_header(self, &header_msg);
usb_msg.header = &header_msg;
usb_msg.message_case = LOGI__DEVICE__PROTO__USB_MSG__MESSAGE_REQUEST;
usb_msg.request = &request_msg;
fu_byte_array_set_size(buf, logi__device__proto__usb_msg__get_packed_size(&usb_msg), 0x00);
logi__device__proto__usb_msg__pack(&usb_msg, (unsigned char *)buf->data);
g_free(header_msg.id);
g_free(header_msg.timestamp);
return buf;
}
GByteArray *
fu_logitech_bulkcontroller_proto_manager_generate_set_device_time_request(
FuLogitechBulkcontrollerDevice *self,
GError **error)
{
g_autofree gchar *olson_location = NULL;
g_autoptr(GByteArray) buf = g_byte_array_new();
Logi__Device__Proto__Header header_msg = LOGI__DEVICE__PROTO__HEADER__INIT;
Logi__Device__Proto__SetDeviceTimeRequest set_devicetime_msg =
LOGI__DEVICE__PROTO__SET_DEVICE_TIME_REQUEST__INIT;
Logi__Device__Proto__UsbMsg usb_msg = LOGI__DEVICE__PROTO__USB_MSG__INIT;
Logi__Device__Proto__Request request_msg = LOGI__DEVICE__PROTO__REQUEST__INIT;
/* the device expects an olson_location, not a timezone */
if (fu_device_has_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_EMULATED) ||
fu_device_has_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_EMULATION_TAG)) {
olson_location = g_strdup("Europe/London");
} else {
olson_location = fu_common_get_olson_timezone_id(error);
if (olson_location == NULL)
return NULL;
}
request_msg.payload_case = LOGI__DEVICE__PROTO__REQUEST__PAYLOAD_SET_DEVICE_TIME_REQUEST;
request_msg.set_device_time_request = &set_devicetime_msg;
/* make predictable */
if (fu_device_has_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_EMULATED) ||
fu_device_has_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_EMULATION_TAG)) {
set_devicetime_msg.ts = 0;
} else {
set_devicetime_msg.ts = (g_get_real_time() / 1000) + SET_TIME_DELAY_MS;
}
set_devicetime_msg.time_zone = olson_location;
fu_logitech_bulkcontroller_proto_manager_set_header(self, &header_msg);
usb_msg.header = &header_msg;
usb_msg.message_case = LOGI__DEVICE__PROTO__USB_MSG__MESSAGE_REQUEST;
usb_msg.request = &request_msg;
fu_byte_array_set_size(buf, logi__device__proto__usb_msg__get_packed_size(&usb_msg), 0x00);
logi__device__proto__usb_msg__pack(&usb_msg, (unsigned char *)buf->data);
g_free(header_msg.id);
g_free(header_msg.timestamp);
return g_steal_pointer(&buf);
}
static GByteArray *
fu_logitech_bulkcontroller_usb_msg_parse_msg_response(Logi__Device__Proto__UsbMsg *usb_msg,
FuLogitechBulkcontrollerProtoId *proto_id,
GError **error)
{
g_autoptr(GByteArray) buf = g_byte_array_new();
if (usb_msg->response == NULL) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_INVALID_DATA,
"no USB response");
return NULL;
}
switch (usb_msg->response->payload_case) {
case LOGI__DEVICE__PROTO__RESPONSE__PAYLOAD_GET_DEVICE_INFO_RESPONSE:
if (usb_msg->response->get_device_info_response) {
const gchar *tmp = usb_msg->response->get_device_info_response->payload;
*proto_id = kProtoId_GetDeviceInfoResponse;
if (tmp != NULL)
g_byte_array_append(buf, (const guint8 *)tmp, strlen(tmp));
}
break;
case LOGI__DEVICE__PROTO__RESPONSE__PAYLOAD_TRANSITION_TO_DEVICEMODE_RESPONSE:
if (usb_msg->response->transition_to_devicemode_response) {
*proto_id = kProtoId_TransitionToDeviceModeResponse;
if (!usb_msg->response->transition_to_devicemode_response->success) {
g_set_error(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"transition mode request failed. error: %u",
(guint)usb_msg->response
->transition_to_devicemode_response->error);
return NULL;
}
}
break;
default:
break;
};
/* success */
return g_steal_pointer(&buf);
}
static GByteArray *
fu_logitech_bulkcontroller_usb_msg_parse_msg_event(Logi__Device__Proto__UsbMsg *usb_msg,
FuLogitechBulkcontrollerProtoId *proto_id,
GError **error)
{
g_autoptr(GByteArray) buf = g_byte_array_new();
if (usb_msg->response == NULL) {
g_set_error_literal(error, FWUPD_ERROR, FWUPD_ERROR_INVALID_DATA, "no USB event");
return NULL;
}
switch (usb_msg->event->payload_case) {
case LOGI__DEVICE__PROTO__EVENT__PAYLOAD_KONG_EVENT:
if (usb_msg->event->kong_event) {
const gchar *tmp = usb_msg->event->kong_event->mqtt_event;
*proto_id = kProtoId_KongEvent;
if (tmp != NULL)
g_byte_array_append(buf, (const guint8 *)tmp, strlen(tmp));
}
break;
case LOGI__DEVICE__PROTO__EVENT__PAYLOAD_HANDSHAKE_EVENT:
if (usb_msg->event->handshake_event)
*proto_id = kProtoId_HandshakeEvent;
break;
case LOGI__DEVICE__PROTO__EVENT__PAYLOAD_CRASH_DUMP_AVAILABLE_EVENT:
*proto_id = kProtoId_CrashDumpAvailableEvent;
break;
default:
break;
};
/* success */
return g_steal_pointer(&buf);
}
GByteArray *
fu_logitech_bulkcontroller_proto_manager_decode_message(const guint8 *data,
guint32 len,
FuLogitechBulkcontrollerProtoId *proto_id,
GError **error)
{
g_autoptr(GByteArray) buf = NULL;
Logi__Device__Proto__UsbMsg *usb_msg =
logi__device__proto__usb_msg__unpack(NULL, len, (const unsigned char *)data);
/* sanity check */
if (usb_msg == NULL) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_INVALID_DATA,
"unable to unpack data");
return NULL;
}
switch (usb_msg->message_case) {
case LOGI__DEVICE__PROTO__USB_MSG__MESSAGE_ACK:
buf = g_byte_array_new();
*proto_id = kProtoId_Ack;
break;
case LOGI__DEVICE__PROTO__USB_MSG__MESSAGE_RESPONSE:
buf =
fu_logitech_bulkcontroller_usb_msg_parse_msg_response(usb_msg, proto_id, error);
if (buf == NULL)
return NULL;
break;
case LOGI__DEVICE__PROTO__USB_MSG__MESSAGE_EVENT:
buf = fu_logitech_bulkcontroller_usb_msg_parse_msg_event(usb_msg, proto_id, error);
if (buf == NULL)
return NULL;
break;
default:
buf = g_byte_array_new();
g_debug("ignoring invalid message case 0x%x", usb_msg->message_case);
break;
};
logi__device__proto__usb_msg__free_unpacked(usb_msg, NULL);
return g_steal_pointer(&buf);
}
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