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87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
/* Copyright (c) 2010 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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*/
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#ifndef VBOOT_REFERENCE_CGPTLIB_INTERNAL_H_
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#define VBOOT_REFERENCE_CGPTLIB_INTERNAL_H_
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#include <stdint.h>
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#include "cgptlib.h"
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int CheckParameters(GptData *gpt);
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uint32_t CheckHeaderSignature(GptData *gpt);
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uint32_t CheckRevision(GptData *gpt);
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uint32_t CheckSize(GptData *gpt);
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uint32_t CheckReservedFields(GptData *gpt);
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uint32_t CheckMyLba(GptData *gpt);
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uint32_t CheckSizeOfPartitionEntry(GptData *gpt);
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uint32_t CheckNumberOfEntries(GptData *gpt);
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uint32_t CheckEntriesLba(GptData *gpt);
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uint32_t CheckValidUsableLbas(GptData *gpt);
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uint32_t CheckHeaderCrc(GptData *gpt);
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uint32_t CheckEntriesCrc(GptData *gpt);
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uint32_t CheckValidEntries(GptData *gpt);
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int OverlappedEntries(GptEntry *entries, uint32_t number_of_entries);
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uint32_t CheckOverlappedPartition(GptData *gpt);
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uint8_t RepairEntries(GptData *gpt, const uint32_t valid_entries);
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uint8_t RepairHeader(GptData *gpt, const uint32_t valid_headers);
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typedef struct {
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uint64_t starting;
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uint64_t ending;
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} pair_t;
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void UpdateCrc(GptData *gpt);
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GptEntry *GetEntry(GptData *gpt, int secondary, int entry_index);
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void SetPriority(GptData *gpt, int secondary, int entry_index, int priority);
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int GetPriority(GptData *gpt, int secondary, int entry_index);
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void SetBad(GptData *gpt, int secondary, int entry_index, int bad);
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int GetBad(GptData *gpt, int secondary, int entry_index);
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void SetTries(GptData *gpt, int secondary, int entry_index, int tries);
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int GetTries(GptData *gpt, int secondary, int entry_index);
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void SetSuccessful(GptData *gpt, int secondary, int entry_index, int success);
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int GetSuccessful(GptData *gpt, int secondary, int entry_index);
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/* Get number of entries value in primary header */
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uint32_t GetNumberOfEntries(const GptData *gpt);
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/* If gpt->current_kernel is this value, means either:
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* 1. an initial value before scanning GPT entries,
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* 2. after scanning, no any valid kernel is found.
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*/
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#define CGPT_KERNEL_ENTRY_NOT_FOUND (-1)
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/* Bit definitions and masks for GPT attributes.
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*
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* 63 -- do not automounting
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* 62 -- hidden
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* 60 -- read-only
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* :
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* 57 -- bad kernel entry
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* 56 -- success
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* 55,52 -- tries
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* 51,48 -- priority
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* 0 -- system partition
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*/
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#define CGPT_ATTRIBUTE_BAD_OFFSET 57
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#define CGPT_ATTRIBUTE_MAX_BAD (1ULL)
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#define CGPT_ATTRIBUTE_BAD_MASK (CGPT_ATTRIBUTE_MAX_BAD << \
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CGPT_ATTRIBUTE_BAD_OFFSET)
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#define CGPT_ATTRIBUTE_SUCCESSFUL_OFFSET 56
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#define CGPT_ATTRIBUTE_MAX_SUCCESSFUL (1ULL)
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#define CGPT_ATTRIBUTE_SUCCESSFUL_MASK (CGPT_ATTRIBUTE_MAX_SUCCESSFUL << \
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CGPT_ATTRIBUTE_SUCCESSFUL_OFFSET)
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#define CGPT_ATTRIBUTE_TRIES_OFFSET 52
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#define CGPT_ATTRIBUTE_MAX_TRIES (15ULL)
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#define CGPT_ATTRIBUTE_TRIES_MASK (CGPT_ATTRIBUTE_MAX_TRIES << \
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CGPT_ATTRIBUTE_TRIES_OFFSET)
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#define CGPT_ATTRIBUTE_PRIORITY_OFFSET 48
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#define CGPT_ATTRIBUTE_MAX_PRIORITY (15ULL)
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#define CGPT_ATTRIBUTE_PRIORITY_MASK (CGPT_ATTRIBUTE_MAX_PRIORITY << \
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CGPT_ATTRIBUTE_PRIORITY_OFFSET)
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#endif /* VBOOT_REFERENCE_CGPTLIB_INTERNAL_H_ */
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