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https://git.proxmox.com/git/fwupd
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23ca19acf8
Implements a search for the fmap, and follow the map to break the firmware into the constituent images. Tested using a servo_micro firmware: $ fwupdtool firmware-parse servo_micro_v2.4.17-df61092c3.bin <select fmap option> FuFmapFirmware: FuFirmwareImage: ID: EC_RO Index: 0x1 Data: 0xf000 FuFirmwareImage: ID: FR_MAIN Index: 0x2 Data: 0xf000 FuFirmwareImage: ID: RO_FRID Index: 0x3 Address: 0xc4 Data: 0x20 FuFirmwareImage: ID: FMAP Index: 0x4 Address: 0x9a40 Version: 1.0 Data: 0x15e FuFirmwareImage: ID: WP_RO Index: 0x5 Data: 0x10000 FuFirmwareImage: ID: EC_RW Index: 0x6 Address: 0x10000 Data: 0x10000 FuFirmwareImage: ID: RW_FWID Index: 0x7 Address: 0x100c4 Data: 0x20
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* Copyright (C) 2020 Benson Leung <bleung@chromium.org>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#pragma once
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#include "fu-firmware.h"
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#define FMAP_STRLEN 32 /* maximum length for strings, */
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/* including null-terminator */
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#define FU_TYPE_FMAP_FIRMWARE (fu_fmap_firmware_get_type ())
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G_DECLARE_DERIVABLE_TYPE (FuFmapFirmware, fu_fmap_firmware, FU, FMAP_FIRMWARE, FuFirmware)
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struct _FuFmapFirmwareClass
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{
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FuFirmwareClass parent_class;
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gboolean (*parse) (FuFirmware *self,
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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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/*< private >*/
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gpointer padding[14];
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};
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/* mapping of volatile and static regions in firmware binary */
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typedef struct __attribute__((packed)) {
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guint32 offset; /* offset relative to base */
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guint32 size; /* size in bytes */
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guint8 name[FMAP_STRLEN]; /* descriptive name */
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guint16 flags; /* flags for this area */
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} FuFmapArea;
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typedef struct __attribute__((packed)) {
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guint8 signature[8]; /* "__FMAP__" (0x5F5F464D41505F5F) */
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guint8 ver_major; /* major version */
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guint8 ver_minor; /* minor version */
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guint64 base; /* address of the firmware binary */
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guint32 size; /* size of firmware binary in bytes */
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guint8 name[FMAP_STRLEN]; /* name of this firmware binary */
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guint16 nareas; /* number of areas described by
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areas[] below */
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FuFmapArea areas[];
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} FuFmap;
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FuFirmware *fu_fmap_firmware_new (void);
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