mirror of
https://git.proxmox.com/git/fwupd
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117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
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* Copyright (C) 2020 Richard Hughes <richard@hughsie.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include <fwupdplugin.h>
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#include "fu-linux-swap.h"
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struct FuPluginData {
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GFile *file;
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GFileMonitor *monitor;
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};
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void
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fu_plugin_init(FuPlugin *plugin)
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{
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fu_plugin_alloc_data(plugin, sizeof(FuPluginData));
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fu_plugin_set_build_hash(plugin, FU_BUILD_HASH);
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}
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void
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fu_plugin_destroy(FuPlugin *plugin)
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{
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FuPluginData *data = fu_plugin_get_data(plugin);
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if (data->file != NULL)
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g_object_unref(data->file);
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if (data->monitor != NULL) {
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g_file_monitor_cancel(data->monitor);
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g_object_unref(data->monitor);
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}
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}
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static void
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fu_plugin_linux_swap_changed_cb(GFileMonitor *monitor,
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GFile *file,
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GFile *other_file,
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GFileMonitorEvent event_type,
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gpointer user_data)
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{
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FuPlugin *plugin = FU_PLUGIN(user_data);
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FuContext *ctx = fu_plugin_get_context(plugin);
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fu_context_security_changed(ctx);
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}
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gboolean
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fu_plugin_startup(FuPlugin *plugin, GError **error)
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{
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FuPluginData *data = fu_plugin_get_data(plugin);
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g_autofree gchar *fn = NULL;
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g_autofree gchar *procfs = NULL;
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procfs = fu_common_get_path(FU_PATH_KIND_PROCFS);
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fn = g_build_filename(procfs, "swaps", NULL);
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data->file = g_file_new_for_path(fn);
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data->monitor = g_file_monitor(data->file, G_FILE_MONITOR_NONE, NULL, error);
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if (data->monitor == NULL)
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return FALSE;
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g_signal_connect(data->monitor,
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"changed",
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G_CALLBACK(fu_plugin_linux_swap_changed_cb),
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plugin);
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return TRUE;
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}
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void
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fu_plugin_add_security_attrs(FuPlugin *plugin, FuSecurityAttrs *attrs)
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{
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FuPluginData *data = fu_plugin_get_data(plugin);
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gsize bufsz = 0;
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g_autofree gchar *buf = NULL;
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g_autoptr(FuLinuxSwap) swap = NULL;
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g_autoptr(FwupdSecurityAttr) attr = NULL;
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g_autoptr(GError) error_local = NULL;
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/* create attr */
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attr = fwupd_security_attr_new(FWUPD_SECURITY_ATTR_ID_KERNEL_SWAP);
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fwupd_security_attr_set_plugin(attr, fu_plugin_get_name(plugin));
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fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_RUNTIME_ISSUE);
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fu_security_attrs_append(attrs, attr);
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/* load list of swaps */
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if (!g_file_load_contents(data->file, NULL, &buf, &bufsz, NULL, &error_local)) {
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g_autofree gchar *fn = g_file_get_path(data->file);
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g_warning("could not open %s: %s", fn, error_local->message);
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fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_VALID);
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return;
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}
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swap = fu_linux_swap_new(buf, bufsz, &error_local);
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if (swap == NULL) {
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g_autofree gchar *fn = g_file_get_path(data->file);
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g_warning("could not parse %s: %s", fn, error_local->message);
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fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_VALID);
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return;
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}
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/* none configured */
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if (!fu_linux_swap_get_enabled(swap)) {
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fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
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fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_ENABLED);
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return;
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}
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/* add security attribute */
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if (!fu_linux_swap_get_encrypted(swap)) {
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fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_NOT_ENCRYPTED);
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return;
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}
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/* success */
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fwupd_security_attr_add_flag(attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
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fwupd_security_attr_set_result(attr, FWUPD_SECURITY_ATTR_RESULT_ENCRYPTED);
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}
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