mirror of
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.
113 lines
3.0 KiB
C
113 lines
3.0 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 <json-glib/json-glib.h>
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#include "fu-common.h"
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#include "fu-ihex-firmware.h"
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#include "fu-solokey-firmware.h"
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struct _FuSolokeyFirmware {
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FuFirmware parent_instance;
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};
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G_DEFINE_TYPE (FuSolokeyFirmware, fu_solokey_firmware, FU_TYPE_FIRMWARE)
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static GBytes *
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_g_base64_decode_to_bytes (const gchar *text)
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{
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gsize out_len = 0;
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guchar *out = g_base64_decode (text, &out_len);
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return g_bytes_new_take ((guint8 *) out, out_len);
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}
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static gboolean
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fu_solokey_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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JsonNode *json_root;
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JsonObject *json_obj;
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const gchar *base64;
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g_autoptr(FuFirmware) ihex_firmware = fu_ihex_firmware_new ();
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g_autoptr(FuFirmwareImage) img = NULL;
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g_autoptr(FuFirmwareImage) img_sig = fu_firmware_image_new (NULL);
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g_autoptr(GBytes) fw_ihex = NULL;
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g_autoptr(GBytes) fw_sig = NULL;
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g_autoptr(GString) base64_websafe = NULL;
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g_autoptr(JsonParser) parser = json_parser_new ();
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/* parse JSON */
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if (!json_parser_load_from_data (parser,
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(const gchar *) g_bytes_get_data (fw, NULL),
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(gssize) g_bytes_get_size (fw),
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error)) {
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g_prefix_error (error, "firmware not in JSON format: ");
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return FALSE;
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}
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json_root = json_parser_get_root (parser);
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json_obj = json_node_get_object (json_root);
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if (!json_object_has_member (json_obj, "firmware")) {
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g_set_error_literal (error,
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FWUPD_ERROR,
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FWUPD_ERROR_INVALID_FILE,
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"JSON invalid as has no 'firmware'");
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return FALSE;
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}
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if (!json_object_has_member (json_obj, "signature")) {
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g_set_error_literal (error,
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FWUPD_ERROR,
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FWUPD_ERROR_INVALID_FILE,
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"JSON invalid as has no 'signature'");
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return FALSE;
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}
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/* decode */
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base64 = json_object_get_string_member (json_obj, "firmware");
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fw_ihex = _g_base64_decode_to_bytes (base64);
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if (!fu_firmware_parse (ihex_firmware, fw_ihex, flags, error))
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return FALSE;
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img = fu_firmware_get_image_default (ihex_firmware, error);
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if (img == NULL)
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return FALSE;
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fu_firmware_add_image (firmware, img);
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/* signature */
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base64_websafe = g_string_new (json_object_get_string_member (json_obj, "signature"));
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fu_common_string_replace (base64_websafe, "-", "+");
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fu_common_string_replace (base64_websafe, "_", "/");
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g_string_append (base64_websafe, "==");
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fw_sig = _g_base64_decode_to_bytes (base64_websafe->str);
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fu_firmware_image_set_bytes (img_sig, fw_sig);
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fu_firmware_image_set_id (img_sig, "signature");
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fu_firmware_add_image (firmware, img_sig);
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return TRUE;
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}
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static void
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fu_solokey_firmware_init (FuSolokeyFirmware *self)
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{
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}
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static void
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fu_solokey_firmware_class_init (FuSolokeyFirmwareClass *klass)
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{
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FuFirmwareClass *klass_firmware = FU_FIRMWARE_CLASS (klass);
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klass_firmware->parse = fu_solokey_firmware_parse;
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}
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FuFirmware *
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fu_solokey_firmware_new (void)
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{
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return FU_FIRMWARE (g_object_new (FU_TYPE_SOLOKEY_FIRMWARE, NULL));
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}
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