mirror of
https://git.proxmox.com/git/fwupd
synced 2025-06-02 14:15:56 +00:00
f5c6e1d276
Some devices do not have a stable PCR0 for the same firmware version, and I'd like to collect the TPM event log for affected machines to debug why.
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2019 Richard Hughes <richard@hughsie.com>
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1+
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "fu-hash.h"
|
|
#include "fu-plugin-vfuncs.h"
|
|
|
|
#include "fu-tpm-eventlog-device.h"
|
|
|
|
void
|
|
fu_plugin_init (FuPlugin *plugin)
|
|
{
|
|
fu_plugin_set_build_hash (plugin, FU_BUILD_HASH);
|
|
}
|
|
|
|
gboolean
|
|
fu_plugin_coldplug (FuPlugin *plugin, GError **error)
|
|
{
|
|
gsize bufsz = 0;
|
|
const gchar *fn = "/sys/kernel/security/tpm0/binary_bios_measurements";
|
|
g_autofree gchar *str = NULL;
|
|
g_autofree guint8 *buf = NULL;
|
|
g_autoptr(FuTpmEventlogDevice) dev = NULL;
|
|
|
|
if (!g_file_get_contents (fn, (gchar **) &buf, &bufsz, error))
|
|
return FALSE;
|
|
if (bufsz == 0) {
|
|
g_set_error (error,
|
|
FWUPD_ERROR,
|
|
FWUPD_ERROR_INVALID_FILE,
|
|
"failed to read data from %s", fn);
|
|
return FALSE;
|
|
}
|
|
dev = fu_tpm_eventlog_device_new (buf, bufsz, error);
|
|
if (dev == NULL)
|
|
return FALSE;
|
|
if (!fu_device_setup (FU_DEVICE (dev), error))
|
|
return FALSE;
|
|
|
|
/* add optional report metadata */
|
|
str = fu_tpm_eventlog_device_report_metadata (dev);
|
|
g_debug ("using TPM event log report data of:\n%s", str);
|
|
fu_plugin_add_report_metadata (plugin, "TpmEventLog", str);
|
|
fu_plugin_device_add (plugin, FU_DEVICE (dev));
|
|
return TRUE;
|
|
}
|
|
|