157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
// Copyright 2021-2023 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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#ifndef MUMBLE_MUMBLE_POSITIONAL_AUDIO_WIN32_INTERNALS_H_
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#define MUMBLE_MUMBLE_POSITIONAL_AUDIO_WIN32_INTERNALS_H_
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// These structures represent the header(s) of an NT image.
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//
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// There are two ways to read the image:
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// - Loading the executable/library in memory and then reading the content at
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// the beginning.
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// - Reading the process' memory at the beginning (base address).
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// In the case of a loaded library, its header(s) can be found at its load
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// (base) address.
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//
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// By reading the header(s) we can gather useful info regarding the process,
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// such as the architecture and, in the case of a library, the address of an
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// exported symbol.
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struct ImageDosHeader {
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uint8_t magic[2]; // M Z
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uint16_t bytesOnLastPage;
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uint16_t pages;
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uint16_t relocations;
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uint16_t headerSizeInParagraphs;
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uint16_t minimumExtraParagraphs;
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uint16_t maximumExtraParagraphs;
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uint16_t initialSsValue;
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uint16_t initialSpValue;
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uint16_t checksum;
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uint16_t initialIpValue;
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uint16_t initialCsValue;
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uint16_t addressOfRelocationTable;
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uint16_t overlayNumber;
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uint16_t reserved[4];
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uint16_t oemIdentifier;
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uint16_t oemInfo;
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uint16_t reserved2[10];
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int32_t addressOfNtHeader;
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};
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struct ImageFileHeader {
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uint16_t machine;
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uint16_t numberOfSections;
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uint32_t timeDateStamp;
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uint32_t pointerToSymbolTable;
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uint32_t numberOfSymbols;
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uint16_t sizeOfOptionalHeader;
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uint16_t characteristics;
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};
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struct ImageNtHeadersNoOptional {
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uint8_t signature[4]; // P E \0 \0
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ImageFileHeader fileHeader;
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};
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struct ImageDataDirectory {
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uint32_t virtualAddress;
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uint32_t size;
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};
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struct ImageExportDirectory {
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uint32_t characteristics;
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uint32_t timeDateStamp;
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uint16_t majorVersion;
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uint16_t minorVersion;
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uint32_t name;
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uint32_t base;
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uint32_t numberOfFunctions;
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uint32_t numberOfNames;
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uint32_t addressOfFunctions;
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uint32_t addressOfNames;
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uint32_t addressOfNameOrdinals;
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};
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struct ImageOptionalHeader32 {
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uint16_t magic; // 0x10b
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uint8_t majorLinkerVersion;
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uint8_t minorLinkerVersion;
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uint32_t sizeOfCode;
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uint32_t sizeOfInitializedData;
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uint32_t sizeOfUninitializedData;
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uint32_t addressOfEntryPoint;
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uint32_t baseOfCode;
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uint32_t baseOfData;
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uint32_t imageBase;
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uint32_t sectionAlignment;
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uint32_t fileAlignment;
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uint16_t majorOperatingSystemVersion;
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uint16_t minorOperatingSystemVersion;
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uint16_t majorImageVersion;
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uint16_t minorImageVersion;
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uint16_t majorSubsystemVersion;
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uint16_t minorSubsystemVersion;
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uint32_t win32VersionValue;
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uint32_t sizeOfImage;
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uint32_t sizeOfHeaders;
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uint32_t checksum;
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uint16_t subsystem;
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uint16_t dllCharacteristics;
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uint32_t sizeOfStackReserve;
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uint32_t sizeOfStackCommit;
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uint32_t sizeOfHeapReserve;
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uint32_t sizeOfHeapCommit;
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uint32_t loaderFlags;
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uint32_t numberOfRvaAndSizes;
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ImageDataDirectory dataDirectory[16];
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};
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struct ImageOptionalHeader64 {
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uint16_t magic; // 0x20b
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uint8_t majorLinkerVersion;
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uint8_t minorLinkerVersion;
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uint32_t sizeOfCode;
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uint32_t sizeOfInitializedData;
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uint32_t sizeOfUninitializedData;
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uint32_t addressOfEntryPoint;
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uint32_t baseOfCode;
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uint64_t imageBase;
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uint32_t sectionAlignment;
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uint32_t fileAlignment;
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uint16_t majorOperatingSystemVersion;
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uint16_t minorOperatingSystemVersion;
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uint16_t majorImageVersion;
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uint16_t minorImageVersion;
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uint16_t majorSubsystemVersion;
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uint16_t minorSubsystemVersion;
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uint32_t win32VersionValue;
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uint32_t sizeOfImage;
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uint32_t sizeOfHeaders;
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uint32_t checksum;
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uint16_t subsystem;
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uint16_t dllCharacteristics;
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uint64_t sizeOfStackReserve;
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uint64_t sizeOfStackCommit;
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uint64_t sizeOfHeapReserve;
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uint64_t sizeOfHeapCommit;
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uint32_t loaderFlags;
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uint32_t numberOfRvaAndSizes;
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ImageDataDirectory dataDirectory[16];
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};
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struct ImageNtHeaders32 {
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uint8_t signature[4]; // P E \0 \0
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ImageFileHeader fileHeader;
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ImageOptionalHeader32 optionalHeader;
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};
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struct ImageNtHeaders64 {
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uint8_t signature[4]; // P E \0 \0
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ImageFileHeader fileHeader;
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ImageOptionalHeader64 optionalHeader;
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};
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#endif
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