mirror of
https://git.proxmox.com/git/fwupd
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e29c74180c
The fact that it currently lives in uefi-capsule is a historical accident, and it doesn't really belong to tpm-eventlog either. Fixes some of https://github.com/fwupd/fwupd/issues/3901
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/*
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* Copyright (C) 2019 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 "fu-tpm-device.h"
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typedef struct {
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guint idx;
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gchar *checksum;
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} FuTpmDevicePcrItem;
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typedef struct {
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gchar *family;
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GPtrArray *items; /* of FuTpmDevicePcrItem */
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} FuTpmDevicePrivate;
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G_DEFINE_TYPE_WITH_PRIVATE(FuTpmDevice, fu_tpm_device, FU_TYPE_UDEV_DEVICE)
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#define GET_PRIVATE(o) (fu_tpm_device_get_instance_private(o))
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void
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fu_tpm_device_set_family(FuTpmDevice *self, const gchar *family)
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{
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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g_return_if_fail(FU_IS_TPM_DEVICE(self));
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priv->family = g_strdup(family);
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}
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const gchar *
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fu_tpm_device_get_family(FuTpmDevice *self)
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{
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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g_return_val_if_fail(FU_IS_TPM_DEVICE(self), NULL);
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return priv->family;
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}
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void
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fu_tpm_device_add_checksum(FuTpmDevice *self, guint idx, const gchar *checksum)
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{
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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FuTpmDevicePcrItem *item = g_new0(FuTpmDevicePcrItem, 1);
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g_return_if_fail(FU_IS_TPM_DEVICE(self));
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g_return_if_fail(checksum != NULL);
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item->idx = idx;
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item->checksum = g_strdup(checksum);
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g_debug("added PCR-%02u=%s", item->idx, item->checksum);
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g_ptr_array_add(priv->items, item);
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}
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GPtrArray *
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fu_tpm_device_get_checksums(FuTpmDevice *self, guint idx)
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{
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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g_autoptr(GPtrArray) array = g_ptr_array_new_with_free_func(g_free);
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g_return_val_if_fail(FU_IS_TPM_DEVICE(self), NULL);
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for (guint i = 0; i < priv->items->len; i++) {
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FuTpmDevicePcrItem *item = g_ptr_array_index(priv->items, i);
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if (item->idx == idx)
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g_ptr_array_add(array, g_strdup(item->checksum));
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}
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return g_steal_pointer(&array);
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}
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static void
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fu_tpm_device_to_string(FuDevice *device, guint idt, GString *str)
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{
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FuTpmDevice *self = FU_TPM_DEVICE(device);
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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if (priv->family != NULL)
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fu_common_string_append_kv(str, idt, "Family", priv->family);
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}
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static void
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fu_tpm_v2_device_item_free(FuTpmDevicePcrItem *item)
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{
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g_free(item->checksum);
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g_free(item);
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}
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static void
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fu_tpm_device_finalize(GObject *object)
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{
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FuTpmDevice *self = FU_TPM_DEVICE(object);
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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g_free(priv->family);
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g_ptr_array_unref(priv->items);
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G_OBJECT_CLASS(fu_tpm_device_parent_class)->finalize(object);
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}
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static void
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fu_tpm_device_init(FuTpmDevice *self)
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{
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FuTpmDevicePrivate *priv = GET_PRIVATE(self);
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priv->items = g_ptr_array_new_with_free_func((GDestroyNotify)fu_tpm_v2_device_item_free);
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fu_device_set_name(FU_DEVICE(self), "TPM");
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fu_device_set_version_format(FU_DEVICE(self), FWUPD_VERSION_FORMAT_QUAD);
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fu_device_add_flag(FU_DEVICE(self), FWUPD_DEVICE_FLAG_INTERNAL);
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fu_device_add_icon(FU_DEVICE(self), "computer");
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fu_udev_device_set_flags(FU_UDEV_DEVICE(self), FU_UDEV_DEVICE_FLAG_NONE);
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fu_device_add_instance_id_full(FU_DEVICE(self),
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"system-tpm",
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FU_DEVICE_INSTANCE_FLAG_NO_QUIRKS);
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}
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static void
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fu_tpm_device_class_init(FuTpmDeviceClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS(klass);
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FuDeviceClass *klass_device = FU_DEVICE_CLASS(klass);
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object_class->finalize = fu_tpm_device_finalize;
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klass_device->to_string = fu_tpm_device_to_string;
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}
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