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/* Copyright 2018 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "cgpt.h"
#include "cgptlib_internal.h"
#include "cgpt_params.h"
#include "vboot_host.h"
int CgptEdit(CgptEditParams *params) {
struct drive drive;
GptHeader *h;
int gpt_retval;
if (params == NULL)
return CGPT_FAILED;
if (CGPT_OK != DriveOpen(params->drive_name, &drive, O_RDWR,
params->drive_size))
return CGPT_FAILED;
if (GPT_SUCCESS != (gpt_retval = GptValidityCheck(&drive.gpt))) {
Error("GptValidityCheck() returned %d: %s\n",
gpt_retval, GptError(gpt_retval));
goto bad;
}
if (CGPT_OK != CheckValid(&drive)) {
Error("Please run 'cgpt repair' before changing settings.\n");
goto bad;
}
h = (GptHeader *)drive.gpt.primary_header;
if (params->set_unique) {
memcpy(&h->disk_uuid, ¶ms->unique_guid, sizeof(h->disk_uuid));
}
// Copy to secondary
RepairHeader(&drive.gpt, MASK_PRIMARY);
drive.gpt.modified |= (GPT_MODIFIED_HEADER1 | GPT_MODIFIED_HEADER2);
UpdateCrc(&drive.gpt);
// Write it all out.
return DriveClose(&drive, 1);
bad:
DriveClose(&drive, 0);
return CGPT_FAILED;
}
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