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42 lines
1.4 KiB
42 lines
1.4 KiB
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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#include <string.h> |
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#include "cgpt.h" |
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#include "cgptlib_internal.h" |
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#include "vboot_host.h" |
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int CgptLegacy(CgptLegacyParams *params) { |
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struct drive drive; |
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GptHeader *h1, *h2; |
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if (params == NULL) |
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return CGPT_FAILED; |
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if (CGPT_OK != DriveOpen(params->drive_name, &drive, O_RDWR, |
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params->drive_size)) |
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return CGPT_FAILED; |
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h1 = (GptHeader *)drive.gpt.primary_header; |
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h2 = (GptHeader *)drive.gpt.secondary_header; |
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if (params->efipart) { |
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memcpy(h1->signature, GPT_HEADER_SIGNATURE, GPT_HEADER_SIGNATURE_SIZE); |
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memcpy(h2->signature, GPT_HEADER_SIGNATURE, GPT_HEADER_SIGNATURE_SIZE); |
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RepairEntries(&drive.gpt, MASK_SECONDARY); |
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drive.gpt.modified |= (GPT_MODIFIED_HEADER1 | GPT_MODIFIED_ENTRIES1 | |
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GPT_MODIFIED_HEADER2); |
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} else { |
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memcpy(h1->signature, GPT_HEADER_SIGNATURE2, GPT_HEADER_SIGNATURE_SIZE); |
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memcpy(h2->signature, GPT_HEADER_SIGNATURE2, GPT_HEADER_SIGNATURE_SIZE); |
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memset(drive.gpt.primary_entries, 0, drive.gpt.sector_bytes); |
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drive.gpt.modified |= (GPT_MODIFIED_HEADER1 | GPT_MODIFIED_ENTRIES1 | |
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GPT_MODIFIED_HEADER2); |
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} |
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UpdateCrc(&drive.gpt); |
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// Write it all out |
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return DriveClose(&drive, 1); |
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}
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