fwupd/plugins/iommu/fu-plugin-iommu.c
Richard Hughes b333e0045c Split out a shared system context
There is a lot of code in fwupd that just assigns a shared object type to
a FuPlugin, and then for each device on that plugin assigns that same shared
object to each FuDevice.

Rather than proxy several kinds of information stores over two different levels
of abstraction create a 'context' which contains the shared *system* state
between the daemon, the plugins and the daemon.

This will allow us to hold other per-machine state in the future, for instance
the system battery level or AC state.
2021-04-01 21:11:29 +01:00

60 lines
1.5 KiB
C

/*
* Copyright (C) 2019 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include "fu-plugin-vfuncs.h"
struct FuPluginData {
gboolean has_iommu;
};
void
fu_plugin_init (FuPlugin *plugin)
{
FuContext *ctx = fu_plugin_get_context (plugin);
fu_plugin_alloc_data (plugin, sizeof (FuPluginData));
fu_plugin_set_build_hash (plugin, FU_BUILD_HASH);
fu_context_add_udev_subsystem (ctx, "iommu");
}
gboolean
fu_plugin_backend_device_added (FuPlugin *plugin, FuDevice *device, GError **error)
{
FuPluginData *priv = fu_plugin_get_data (plugin);
/* interesting device? */
if (!FU_IS_UDEV_DEVICE (device))
return TRUE;
if (g_strcmp0 (fu_udev_device_get_subsystem (FU_UDEV_DEVICE (device)), "iommu") != 0)
return TRUE;
priv->has_iommu = TRUE;
return TRUE;
}
void
fu_plugin_add_security_attrs (FuPlugin *plugin, FuSecurityAttrs *attrs)
{
FuPluginData *data = fu_plugin_get_data (plugin);
g_autoptr(FwupdSecurityAttr) attr = NULL;
/* create attr */
attr = fwupd_security_attr_new (FWUPD_SECURITY_ATTR_ID_IOMMU);
fwupd_security_attr_set_level (attr, FWUPD_SECURITY_ATTR_LEVEL_IMPORTANT);
fwupd_security_attr_set_plugin (attr, fu_plugin_get_name (plugin));
fu_security_attrs_append (attrs, attr);
if (!data->has_iommu) {
fwupd_security_attr_set_result (attr, FWUPD_SECURITY_ATTR_RESULT_NOT_FOUND);
return;
}
/* success */
fwupd_security_attr_add_flag (attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
fwupd_security_attr_set_result (attr, FWUPD_SECURITY_ATTR_RESULT_ENABLED);
}