mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
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151 lines
4.3 KiB
C
151 lines
4.3 KiB
C
/** @file
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Apple Debug Log protocol.
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Copyright (C) 2020, vit9696. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef APPLE_DEBUG_LOG_H
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#define APPLE_DEBUG_LOG_H
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/**
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Apple Debug Log protocol GUID.
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DDFA34FB-FE1F-48EA-B213-FB4A4CD57BE3
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**/
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#define APPLE_DEBUG_LOG_PROTOCOL_GUID \
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{ 0xDDFA34FB, 0xFE1F, 0x48EA, \
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{ 0xB2, 0x13, 0xFB, 0x4A, 0x4C, 0xD5, 0x7B, 0xE3 } }
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/**
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Current supported revision.
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**/
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#define APPLE_DEBUG_LOG_PROTOCOL_REVISION 0x10000
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/**
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Maximum logfile size.
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**/
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#define APPLE_DEBUG_LOG_PROTOCOL_FILESIZE BASE_2MB
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/**
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Logfile name on EFI system partition (indices 1~8).
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**/
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#define APPLE_DEBUG_LOG_PROTOCOL_FILENAME L"\\EFI\\APPLE\\LOG\\BOOT-%u.LOG"
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/**
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Legacy boot.efi logfile.
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**/
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#define APPLE_DEBUG_LOG_PROTOCOL_BOOTLOG L"\\BOOTLOG"
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/**
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Legacy previous boot.efi logfile.
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**/
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#define APPLE_DEBUG_LOG_PROTOCOL_BOOTLOG_OLD L"\\BOOTLOG.OLD"
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/**
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Apple Debug Log protocol structure forward declaration.
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**/
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typedef struct APPLE_DEBUG_LOG_PROTOCOL_ APPLE_DEBUG_LOG_PROTOCOL;
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/**
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Send debug message to the protocol.
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@param[in] Message ASCII message to log.
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@retval EFI_SUCCESS on success.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *APPLE_DEBUG_LOG_PRINT) (
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IN CONST CHAR8 *Message
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);
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/**
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Extract characters from the log buffer.
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@param[in,out] Position Starting position for extraction.
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@param[in,out] BufferSize Extraction buffer size.
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@param[out] Buffer Extraction buffer, optional.
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@param[out] LostCharacters Amount of characters that did not fit the buffer, optional.
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- Position is automatically updated to point to the end of the buffer if provided
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value is too large.
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- Position is automatically updated to point after extracted characters if Buffer is
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not NULL.
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@retval EFI_INVALID_PARAMETER if Position or BufferSize are NULL.
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@retval EFI_SUCCESS on successful extraction.
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@retval EFI_SUCCESS on reported size in BufferSize if Buffer is NULL.
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@retval EFI_END_OF_FILE on empty buffer.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *APPLE_DEBUG_LOG_EXTRACT_BUFFER) (
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IN OUT UINT32 *Position,
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IN OUT UINTN *BufferSize,
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OUT CHAR8 *Buffer OPTIONAL,
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OUT UINT32 *LostCharacters OPTIONAL
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);
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/**
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Save debug log to 1st APPLE_DEBUG_LOG_PROTOCOL_FILENAME
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on logging partition. Saving debug log includes extracting
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all previously unsaved characters from the debug log buffer.
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On first call this function performs log rotation:
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- 8th APPLE_DEBUG_LOG_PROTOCOL_FILENAME is removed.
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- APPLE_DEBUG_LOG_PROTOCOL_FILENAMEs from 1st to 7th are renamed to 2nd to 8th.
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Truncated character amount is reflected in the log before writing to file.
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@retval EFI_SUCCESS on success.
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@retval EFI_UNSUPPORTED if current TPL is above TPL_CALLBACK.
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@retval EFI_NOT_FOUND on write failure.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *APPLE_DEBUG_LOG_WRITE_FILES) (
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VOID
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);
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/**
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Performs a one-time operation of setting up an event for
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EfiSimpleFileSystem protocol installation and triggering
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its handler for all currently present file systems.
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Event handler is supposed to handle all ESP partitions:
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- Set modification time of APPLE_DEBUG_LOG_PROTOCOL_FILENAME
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to current if it is before 2000 year.
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- Remove APPLE_DEBUG_LOG_PROTOCOL_FILENAME created or modified
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more than a month ago.
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- Remove APPLE_DEBUG_LOG_PROTOCOL_BOOTLOG and
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APPLE_DEBUG_LOG_PROTOCOL_BOOTLOG_OLD files if present.
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- Update logging partition to current handled partition.
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**/
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typedef
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VOID
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(EFIAPI *APPLE_DEBUG_LOG_SETUP_FILES) (
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VOID
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);
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/**
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Apple debug log protocol.
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**/
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struct APPLE_DEBUG_LOG_PROTOCOL_ {
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UINTN Revision;
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APPLE_DEBUG_LOG_PRINT Print;
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APPLE_DEBUG_LOG_EXTRACT_BUFFER ExtractBuffer;
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APPLE_DEBUG_LOG_WRITE_FILES WriteFiles;
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APPLE_DEBUG_LOG_SETUP_FILES SetupFiles;
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};
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extern EFI_GUID gAppleDebugLogProtocolGuid;
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#endif // APPLE_DEBUG_LOG_H
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