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https://git.proxmox.com/git/fwupd
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7afd7cba0d
In many plugins we've wanted to use ->prepare_firmware() to parse the firmware ahead of ->detach() and ->write_firmware() but this has the limitation that it can only return a single blob of data. For many devices, multiple binary blobs are required from one parsed image, for instance providing signatures, config and data blobs that have to be pushed to the device in different way. This also means we parse the firmware *before* we ask the user to detach. Break the internal FuDevice API to support these firmware types as they become more popular. This also allows us to move the Intel HEX and SREC parsing out of the dfu plugin as they are used by a few plugins now, and resolving symbols between plugins isn't exactly awesome.
102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/*
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* Copyright (C) 2015-2018 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 <string.h>
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#include "fu-common.h"
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#include "dfu-firmware.h"
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#include "dfu-format-srec.h"
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#include "dfu-image.h"
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#include "fu-firmware-common.h"
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#include "fu-srec-firmware.h"
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#include "fwupd-error.h"
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/**
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* dfu_firmware_detect_srec: (skip)
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* @bytes: data to parse
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*
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* Attempts to sniff the data and work out the firmware format
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*
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* Returns: a #DfuFirmwareFormat, e.g. %DFU_FIRMWARE_FORMAT_RAW
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**/
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DfuFirmwareFormat
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dfu_firmware_detect_srec (GBytes *bytes)
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{
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guint8 *data;
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gsize len;
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data = (guint8 *) g_bytes_get_data (bytes, &len);
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if (len < 12)
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return DFU_FIRMWARE_FORMAT_UNKNOWN;
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if (memcmp (data, "S0", 2) != 0)
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return DFU_FIRMWARE_FORMAT_UNKNOWN;
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return DFU_FIRMWARE_FORMAT_SREC;
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}
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/**
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* dfu_firmware_from_srec: (skip)
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* @firmware: a #DfuFirmware
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* @bytes: data to parse
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* @flags: some #DfuFirmwareParseFlags
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* @error: a #GError, or %NULL
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*
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* Unpacks into a firmware object from raw data.
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*
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* Returns: %TRUE for success
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**/
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gboolean
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dfu_firmware_from_srec (DfuFirmware *firmware,
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GBytes *bytes,
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DfuFirmwareParseFlags flags,
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GError **error)
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{
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g_autoptr(FuFirmware) firmware_new = fu_srec_firmware_new ();
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g_autoptr(GPtrArray) imgs = NULL;
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FwupdInstallFlags flags_new = FWUPD_INSTALL_FLAG_NONE;
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/* make a native objects from the abstract firmware */
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if (flags & DFU_FIRMWARE_PARSE_FLAG_NO_CRC_TEST)
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flags_new |= FWUPD_INSTALL_FLAG_FORCE;
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if (!fu_firmware_parse (firmware_new, bytes, flags_new, error))
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return FALSE;
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imgs = fu_firmware_get_images (firmware_new);
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for (guint i = 0; i < imgs->len; i++) {
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FuFirmwareImage *img = g_ptr_array_index (imgs, i);
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g_autoptr(DfuElement) element = dfu_element_new ();
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g_autoptr(DfuImage) image = dfu_image_new ();
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dfu_element_set_contents (element, fu_firmware_image_get_bytes (img, NULL));
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dfu_element_set_address (element, fu_firmware_image_get_addr (img));
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dfu_image_add_element (image, element);
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dfu_firmware_add_image (firmware, image);
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}
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dfu_firmware_set_format (firmware, DFU_FIRMWARE_FORMAT_SREC);
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return TRUE;
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}
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/**
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* dfu_firmware_to_srec: (skip)
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* @firmware: a #DfuFirmware
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* @error: a #GError, or %NULL
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*
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* Exports a Motorola S-record file
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*
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* Returns: (transfer full): the packed data
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**/
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GBytes *
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dfu_firmware_to_srec (DfuFirmware *firmware, GError **error)
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{
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g_set_error_literal (error,
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FWUPD_ERROR,
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FWUPD_ERROR_NOT_SUPPORTED,
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"Motorola S-record export functionality missing");
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return NULL;
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}
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