fwupd/plugins/linux-swap/fu-plugin-linux-swap.c
Richard Hughes ae0c3fe38a Add 'action' resolution flags to each FwupdSecurityAttr
We tried to solve this by matching the org.fwupd.hsi AppStream ID, but
in some cases the resolution depends on what actually failed.

Add "the action the user is supposed to do" as flags so that the
front-end can translate this in the appropriate way, for instance,
using a different string for log events and HSI dialogs.
2022-07-14 14:47:44 +01:00

137 lines
3.8 KiB
C

/*
* Copyright (C) 2020 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include <fwupdplugin.h>
#include "fu-linux-swap.h"
struct FuPluginData {
GFile *file;
GFileMonitor *monitor;
};
static void
fu_plugin_linux_swap_init(FuPlugin *plugin)
{
fu_plugin_alloc_data(plugin, sizeof(FuPluginData));
}
static void
fu_plugin_linux_swap_destroy(FuPlugin *plugin)
{
FuPluginData *priv = fu_plugin_get_data(plugin);
if (priv->file != NULL)
g_object_unref(priv->file);
if (priv->monitor != NULL) {
g_file_monitor_cancel(priv->monitor);
g_object_unref(priv->monitor);
}
}
static void
fu_plugin_linux_swap_changed_cb(GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event_type,
gpointer user_data)
{
FuPlugin *plugin = FU_PLUGIN(user_data);
FuContext *ctx = fu_plugin_get_context(plugin);
fu_context_security_changed(ctx);
}
static gboolean
fu_plugin_linux_swap_startup(FuPlugin *plugin, FuProgress *progress, GError **error)
{
FuPluginData *priv = fu_plugin_get_data(plugin);
g_autofree gchar *fn = NULL;
g_autofree gchar *procfs = NULL;
procfs = fu_path_from_kind(FU_PATH_KIND_PROCFS);
fn = g_build_filename(procfs, "swaps", NULL);
if (!g_file_test(fn, G_FILE_TEST_EXISTS)) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"Kernel doesn't offer swap support.");
return FALSE;
}
priv->file = g_file_new_for_path(fn);
priv->monitor = g_file_monitor(priv->file, G_FILE_MONITOR_NONE, NULL, error);
if (priv->monitor == NULL)
return FALSE;
g_signal_connect(G_FILE_MONITOR(priv->monitor),
"changed",
G_CALLBACK(fu_plugin_linux_swap_changed_cb),
plugin);
return TRUE;
}
static void
fu_plugin_linux_swap_add_security_attrs(FuPlugin *plugin, FuSecurityAttrs *attrs)
{
FuPluginData *priv = fu_plugin_get_data(plugin);
gsize bufsz = 0;
g_autofree gchar *buf = NULL;
g_autoptr(FuLinuxSwap) swap = NULL;
g_autoptr(FwupdSecurityAttr) attr = NULL;
g_autoptr(GError) error_local = NULL;
if (priv == NULL || priv->file == NULL)
return;
/* create attr */
attr = fwupd_security_attr_new(FWUPD_SECURITY_ATTR_ID_KERNEL_SWAP);
fwupd_security_attr_set_plugin(attr, fu_plugin_get_name(plugin));
fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_RUNTIME_ISSUE);
fu_security_attrs_append(attrs, attr);
/* load list of swaps */
if (!g_file_load_contents(priv->file, NULL, &buf, &bufsz, NULL, &error_local)) {
g_autofree gchar *fn = g_file_get_path(priv->file);
g_warning("could not open %s: %s", fn, error_local->message);
fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_VALID);
return;
}
swap = fu_linux_swap_new(buf, bufsz, &error_local);
if (swap == NULL) {
g_autofree gchar *fn = g_file_get_path(priv->file);
g_warning("could not parse %s: %s", fn, error_local->message);
fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_VALID);
return;
}
/* none configured */
if (!fu_linux_swap_get_enabled(swap)) {
fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_ENABLED);
return;
}
/* add security attribute */
if (!fu_linux_swap_get_encrypted(swap)) {
fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_ENCRYPTED);
fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_ACTION_CONFIG_OS);
return;
}
/* success */
fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_ENCRYPTED);
}
void
fu_plugin_init_vfuncs(FuPluginVfuncs *vfuncs)
{
vfuncs->build_hash = FU_BUILD_HASH;
vfuncs->init = fu_plugin_linux_swap_init;
vfuncs->destroy = fu_plugin_linux_swap_destroy;
vfuncs->startup = fu_plugin_linux_swap_startup;
vfuncs->add_security_attrs = fu_plugin_linux_swap_add_security_attrs;
}