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/*
* Copyright 2025 NVIDIA Corporation & Affiliates
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include "fu-context-private.h"
#include "fu-devlink-component.h"
#include "fu-devlink-device.h"
#include "fu-devlink-plugin.h"
#include "fu-plugin-private.h"
typedef struct {
guint device_id;
} FuDevlinkNetdevsim;
static gboolean
fu_devlink_file_write_helper(const gchar *path, const guint value, GError **error)
{
g_autofree gchar *value_str = g_strdup_printf("%u", value);
g_autoptr(FuIOChannel) io = NULL;
/* check if file exists first */
if (!g_file_test(path, G_FILE_TEST_IS_REGULAR)) {
g_set_error(error, FWUPD_ERROR, FWUPD_ERROR_NOT_FOUND, "file not found: %s", path);
return FALSE;
}
io = fu_io_channel_new_file(path, FU_IO_CHANNEL_OPEN_FLAG_WRITE, error);
if (io == NULL)
return FALSE;
return fu_io_channel_write_raw(io,
(const guint8 *)value_str,
strlen(value_str),
1000,
FU_IO_CHANNEL_FLAG_NONE,
error);
}
static gboolean
fu_devlink_netdevsim_sysfs_write(const gchar *filename, const guint value, GError **error)
{
g_autofree gchar *path =
fu_path_build(FU_PATH_KIND_SYSFSDIR, "bus", "netdevsim", filename, NULL);
return fu_devlink_file_write_helper(path, value, error);
}
static gboolean
fu_devlink_netdevsim_debugfs_write(const guint device_id,
const gchar *filename,
const guint value,
GError **error)
{
g_autofree gchar *device_id_str = g_strdup_printf("netdevsim%u", device_id);
g_autofree gchar *path =
fu_path_build(FU_PATH_KIND_DEBUGFSDIR, "netdevsim", device_id_str, filename, NULL);
return fu_devlink_file_write_helper(path, value, error);
}
static void
fu_devlink_netdevsim_cleanup(FuDevlinkNetdevsim *ndsim)
{
g_autoptr(GError) error_local = NULL;
if (ndsim->device_id != 0) {
/* remove netdevsim device */
if (!fu_devlink_netdevsim_sysfs_write("del_device",
ndsim->device_id,
&error_local)) {
g_debug("Failed to remove netdevsim device %u: %s",
ndsim->device_id,
error_local->message);
}
}
g_free(ndsim);
}
G_DEFINE_AUTOPTR_CLEANUP_FUNC(FuDevlinkNetdevsim, fu_devlink_netdevsim_cleanup)
#define FU_DEVLINK_NETDEVSIM_FW_UPDATE_FLASH_CHUNK_TIME_MS 1 /* 1ms */
static FuDevlinkNetdevsim *
fu_devlink_netdevsim_new(guint device_id, GError **error)
{
g_autoptr(FuDevlinkNetdevsim) ndsim = g_new0(FuDevlinkNetdevsim, 1);
g_autoptr(GError) error_local = NULL;
/* create netdevsim device */
if (!fu_devlink_netdevsim_sysfs_write("new_device", device_id, error))
return NULL;
ndsim->device_id = device_id;
if (!fu_devlink_netdevsim_debugfs_write(device_id,
"fw_update_flash_chunk_time_ms",
FU_DEVLINK_NETDEVSIM_FW_UPDATE_FLASH_CHUNK_TIME_MS,
&error_local)) {
g_debug("Failed to write fw_update_flash_chunk_time_ms: %s", error_local->message);
g_clear_error(&error_local);
}
return g_steal_pointer(&ndsim);
}
#define FU_DEVLINK_NETDEVSIM_DEVICE_ID 472187
#define FU_DEVLINK_NETDEVSIM_DEVICE_NAME "netdevsim" G_STRINGIFY(FU_DEVLINK_NETDEVSIM_DEVICE_ID)
static void
fu_devlink_plugin_flash_func(void)
{
gboolean ret;
const gchar *fw_content = "FWUPD_TEST_FIRMWARE_v2.0.0\nTest firmware for devlink device";
g_autoptr(FuDevice) device = NULL;
g_autoptr(FuDevlinkComponent) component = NULL;
g_autoptr(FuDevlinkNetdevsim) ndsim = NULL;
g_autoptr(FuContext) ctx = fu_context_new();
g_autoptr(FuFirmware) firmware = fu_firmware_new();
g_autoptr(FuProgress) progress = fu_progress_new(G_STRLOC);
g_autoptr(GBytes) fw_data = NULL;
g_autoptr(GError) error_local = NULL;
/* create test netdevsim to set up netdevsim device */
ndsim = fu_devlink_netdevsim_new(FU_DEVLINK_NETDEVSIM_DEVICE_ID, &error_local);
if (ndsim == NULL) {
g_autofree gchar *msg =
g_strdup_printf("failed to create netdevsim device: %s", error_local->message);
g_test_skip(msg);
return;
}
/* create device with valid bus and device names */
device = fu_devlink_device_new(ctx, "netdevsim", FU_DEVLINK_NETDEVSIM_DEVICE_NAME, NULL);
g_assert_nonnull(device);
/* probe device first */
ret = fu_device_probe(device, &error_local);
g_assert_true(ret);
/* open device */
ret = fu_device_open(device, &error_local);
g_assert_true(ret);
/* create fw.mgmt component */
component = fu_devlink_component_new(device, "fw.mgmt");
g_assert_nonnull(component);
/* set up parent-child relationship */
fu_device_add_child(device, FU_DEVICE(component));
/* set component version for testing */
fu_device_set_version(FU_DEVICE(component), "1.0.0");
/* create firmware */
fw_data = g_bytes_new(fw_content, strlen(fw_content));
fu_firmware_set_bytes(firmware, fw_data);
fu_firmware_set_version(firmware, "2.0.0");
/* prepare the component */
ret = fu_device_prepare(FU_DEVICE(component),
progress,
FWUPD_INSTALL_FLAG_NONE,
&error_local);
g_assert_true(ret);
/* test firmware flashing on the fw.mgmt component */
g_test_message("Testing firmware flash for fw.mgmt component on netdevsim/%s",
FU_DEVLINK_NETDEVSIM_DEVICE_NAME);
ret = fu_device_write_firmware(FU_DEVICE(component),
firmware,
progress,
FWUPD_INSTALL_FLAG_NONE,
&error_local);
g_assert_true(ret);
g_test_message("Firmware flash completed successfully for fw.mgmt component!");
g_assert_cmpuint(fu_progress_get_percentage(progress), ==, 100);
/* cleanup the component */
ret = fu_device_cleanup(FU_DEVICE(component),
progress,
FWUPD_INSTALL_FLAG_NONE,
&error_local);
g_assert_true(ret);
}
int
main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
/* only critical and error are fatal */
g_log_set_fatal_mask(NULL, G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL);
/* tests go here */
g_test_add_func("/devlink/plugin/flash", fu_devlink_plugin_flash_func);
return g_test_run();
}
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