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https://git.proxmox.com/git/fwupd
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90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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* Copyright (C) 2022 Gaël PORTAY <gael.portay@collabora.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-steelseries-firmware.h"
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struct _FuSteelseriesFirmware {
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FuFirmwareClass parent_instance;
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guint32 checksum;
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};
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G_DEFINE_TYPE(FuSteelseriesFirmware, fu_steelseries_firmware, FU_TYPE_FIRMWARE)
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static gboolean
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fu_steelseries_firmware_parse(FuFirmware *firmware,
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GBytes *fw,
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guint64 addr_start,
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guint64 addr_end,
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FwupdInstallFlags flags,
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GError **error)
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{
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FuSteelseriesFirmware *self = FU_STEELSERIES_FIRMWARE(firmware);
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guint32 checksum_tmp;
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guint32 checksum;
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if (!fu_memread_uint32_safe(g_bytes_get_data(fw, NULL),
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g_bytes_get_size(fw),
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g_bytes_get_size(fw) - sizeof(checksum),
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&checksum,
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G_LITTLE_ENDIAN,
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error))
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return FALSE;
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checksum_tmp =
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fu_crc32(g_bytes_get_data(fw, NULL), g_bytes_get_size(fw) - sizeof(checksum_tmp));
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if (checksum_tmp != checksum) {
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if ((flags & FWUPD_INSTALL_FLAG_IGNORE_CHECKSUM) == 0) {
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g_set_error(error,
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FWUPD_ERROR,
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FWUPD_ERROR_INTERNAL,
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"checksum mismatch, got 0x%08x, expected 0x%08x",
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checksum_tmp,
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checksum);
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return FALSE;
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}
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g_debug("ignoring checksum mismatch, got 0x%08x, expected 0x%08x",
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checksum_tmp,
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checksum);
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}
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self->checksum = checksum;
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fu_firmware_add_flag(FU_FIRMWARE(self), FU_FIRMWARE_FLAG_HAS_CHECKSUM);
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fu_firmware_set_bytes(firmware, fw);
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/* success */
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return TRUE;
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}
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static void
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fu_steelseries_firmware_export(FuFirmware *firmware, FuFirmwareExportFlags flags, XbBuilderNode *bn)
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{
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FuSteelseriesFirmware *self = FU_STEELSERIES_FIRMWARE(firmware);
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fu_xmlb_builder_insert_kx(bn, "checksum", self->checksum);
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}
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static void
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fu_steelseries_firmware_init(FuSteelseriesFirmware *self)
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{
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}
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static void
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fu_steelseries_firmware_class_init(FuSteelseriesFirmwareClass *klass)
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{
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FuFirmwareClass *klass_firmware = FU_FIRMWARE_CLASS(klass);
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klass_firmware->parse = fu_steelseries_firmware_parse;
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klass_firmware->export = fu_steelseries_firmware_export;
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}
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FuFirmware *
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fu_steelseries_firmware_new(void)
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{
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return FU_FIRMWARE(g_object_new(FU_TYPE_STEELSERIES_FIRMWARE, NULL));
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}
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