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# Makefile.in generated by automake 1.16.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2018 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
@SET_MAKE@
#
# OpenVPN -- An application to securely tunnel IP networks
# over a single UDP port, with support for SSL/TLS-based
# session authentication and key exchange,
# packet encryption, packet authentication, and
# packet compression.
#
# Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
# Copyright (C) 2006-2012 Alon Bar-Lev <alon.barlev@gmail.com>
#
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*/*) $(MKDIR_P) `echo "$$dist_files" | \
sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
sort -u` ;; \
esac; \
for file in $$dist_files; do \
if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
if test -d $$d/$$file; then \
dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
if test -d "$(distdir)/$$file"; then \
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
fi; \
if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
fi; \
cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
else \
test -f "$(distdir)/$$file" \
|| cp -p $$d/$$file "$(distdir)/$$file" \
|| exit 1; \
fi; \
done
check-am: all-am
check: check-am
all-am: Makefile $(LTLIBRARIES)
installdirs:
install: install-am
install-exec: install-exec-am
install-data: install-data-am
uninstall: uninstall-am
install-am: all-am
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
installcheck: installcheck-am
install-strip:
if test -z '$(STRIP)'; then \
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
install; \
else \
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
"INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
fi
mostlyclean-generic:
clean-generic:
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
maintainer-clean-generic:
@echo "This command is intended for maintainers to use"
@echo "it deletes files that may require special tools to rebuild."
-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
clean: clean-am
clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
mostlyclean-am
distclean: distclean-am
-rm -f ./$(DEPDIR)/compat-basename.Plo
-rm -f ./$(DEPDIR)/compat-daemon.Plo
-rm -f ./$(DEPDIR)/compat-dirname.Plo
-rm -f ./$(DEPDIR)/compat-gettimeofday.Plo
-rm -f ./$(DEPDIR)/compat-inet_ntop.Plo
-rm -f ./$(DEPDIR)/compat-inet_pton.Plo
-rm -f ./$(DEPDIR)/compat-lz4.Plo
-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
distclean-tags
dvi: dvi-am
dvi-am:
html: html-am
html-am:
info: info-am
info-am:
install-data-am:
install-dvi: install-dvi-am
install-dvi-am:
install-exec-am:
install-html: install-html-am
install-html-am:
install-info: install-info-am
install-info-am:
install-man:
install-pdf: install-pdf-am
install-pdf-am:
install-ps: install-ps-am
install-ps-am:
installcheck-am:
maintainer-clean: maintainer-clean-am
-rm -f ./$(DEPDIR)/compat-basename.Plo
-rm -f ./$(DEPDIR)/compat-daemon.Plo
-rm -f ./$(DEPDIR)/compat-dirname.Plo
-rm -f ./$(DEPDIR)/compat-gettimeofday.Plo
-rm -f ./$(DEPDIR)/compat-inet_ntop.Plo
-rm -f ./$(DEPDIR)/compat-inet_pton.Plo
-rm -f ./$(DEPDIR)/compat-lz4.Plo
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-am
mostlyclean-am: mostlyclean-compile mostlyclean-generic \
mostlyclean-libtool
pdf: pdf-am
pdf-am:
ps: ps-am
ps-am:
uninstall-am:
.MAKE: install-am install-strip
.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
clean-generic clean-libtool clean-noinstLTLIBRARIES \
cscopelist-am ctags ctags-am distclean distclean-compile \
distclean-generic distclean-libtool distclean-tags distdir dvi \
dvi-am html html-am info info-am install install-am \
install-data install-data-am install-dvi install-dvi-am \
install-exec install-exec-am install-html install-html-am \
install-info install-info-am install-man install-pdf \
install-pdf-am install-ps install-ps-am install-strip \
installcheck installcheck-am installdirs maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-compile \
mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
tags tags-am uninstall uninstall-am
.PRECIOUS: Makefile
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:
src/compat/PropertySheet.props 0 → 100644
View file @ e1e1377b
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets" />
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<OutDir>$(SolutionDir)$(Platform)-Output\$(Configuration)\</OutDir>
<_PropertySheetDisplayName>compat</_PropertySheetDisplayName>
</PropertyGroup>
<ItemDefinitionGroup>
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<PreprocessorDefinitions>WIN32;$(CPPFLAGS);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>$(SolutionDir);$(SolutionDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
</Link>
<ResourceCompile />
<ResourceCompile>
<AdditionalIncludeDirectories>$(SOLUTIONDIR)</AdditionalIncludeDirectories>
</ResourceCompile>
</ItemDefinitionGroup>
<ItemGroup>
<BuildMacro Include="SOLUTIONDIR">
<Value>$(SOLUTIONDIR)</Value>
<EnvironmentVariable>true</EnvironmentVariable>
</BuildMacro>
</ItemGroup>
</Project>
\ No newline at end of file
src/compat/Release.props 0 → 100644
View file @ e1e1377b
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ImportGroup Label="PropertySheets">
<Import Project="PropertySheet.props" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup>
<_PropertySheetDisplayName>compat-Release</_PropertySheetDisplayName>
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup>
<ClCompile>
<IntrinsicFunctions>true</IntrinsicFunctions>
<FunctionLevelLinking>true</FunctionLevelLinking>
<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ControlFlowGuard>Guard</ControlFlowGuard>
</ClCompile>
<Link>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
</Link>
</ItemDefinitionGroup>
<ItemGroup />
</Project>
\ No newline at end of file
src/compat/compat-daemon.c
View file @ e1e1377b
......@@ -33,9 +33,7 @@
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
......@@ -49,9 +47,7 @@
#include <fcntl.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
int
daemon(int nochdir, int noclose)
......
src/compat/compat-dco_get_overlapped_result.c 0 → 100644
View file @ e1e1377b
/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2021 Lev Stipakov <lev@openvpn.net>
* Copyright (C) 2021 OpenVPN Inc <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#elif defined(_MSC_VER)
#include "config-msvc.h"
#endif
#include "compat.h"
#if defined(__MINGW32__) && !defined(__MINGW64__)
BOOL
dco_get_overlapped_result(HANDLE handle, OVERLAPPED *ov, DWORD *transferred,
DWORD delay_millisec, BOOL unused)
{
BOOL res = GetOverlappedResult(handle, ov, transferred, FALSE);
if ((res == 0) && (GetLastError() == ERROR_IO_INCOMPLETE))
{
Sleep(delay_millisec);
}
return res;
}
#endif
src/compat/compat-gettimeofday.c
View file @ e1e1377b
......@@ -5,7 +5,7 @@
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
* Copyright (C) 2002-2022 OpenVPN Inc <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
......@@ -93,7 +93,7 @@ gettimeofday(struct timeval *tv, void *tz)
{
/* We try to dampen out backtracks of less than backtrack_hold_seconds.
* Larger backtracks will be passed through and dealt with by the
* TIME_BACKTRACK_PROTECTION code (if enabled) */
* TIME_BACKTRACK_PROTECTION code */
if (sec > last_sec - backtrack_hold_seconds)
{
sec = last_sec;
......@@ -102,7 +102,8 @@ gettimeofday(struct timeval *tv, void *tz)
bt = 1;
}
tv->tv_sec = (long)last_sec = (long)sec;
last_sec = sec;
tv->tv_sec = (long)sec;
tv->tv_usec = (last_msec = msec) * 1000;
if (bt && !bt_last)
......@@ -116,9 +117,7 @@ gettimeofday(struct timeval *tv, void *tz)
#else /* ifdef _WIN32 */
#ifdef HAVE_TIME_H
#include <time.h>
#endif
int
gettimeofday(struct timeval *tv, void *tz)
......
src/compat/compat-lz4.c deleted 100644 → 0
View file @ e3856827
/* This file has been backported by dev-tools/lz4-rebaser.sh
* from upstream lz4 commit 7bb64ff2b69a9f8367de (v1.7.5)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#elif defined(_MSC_VER)
#include "config-msvc.h"
#endif
#ifdef NEED_COMPAT_LZ4
/*
LZ4 - Fast LZ compression algorithm
Copyright (C) 2011-2016, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- LZ4 homepage : http://www.lz4.org
- LZ4 source repository : https://github.com/lz4/lz4
*/
/*-************************************
* Tuning parameters
**************************************/
/*
* HEAPMODE :
* Select how default compression functions will allocate memory for their hash table,
* in memory stack (0:default, fastest), or in memory heap (1:requires malloc()).
*/
#ifndef HEAPMODE
# define HEAPMODE 0
#endif
/*
* ACCELERATION_DEFAULT :
* Select "acceleration" for LZ4_compress_fast() when parameter value <= 0
*/
#define ACCELERATION_DEFAULT 1
/*-************************************
* CPU Feature Detection
**************************************/
/* LZ4_FORCE_MEMORY_ACCESS
* By default, access to unaligned memory is controlled by `memcpy()`, which is safe and portable.
* Unfortunately, on some target/compiler combinations, the generated assembly is sub-optimal.
* The below switch allow to select different access method for improved performance.
* Method 0 (default) : use `memcpy()`. Safe and portable.
* Method 1 : `__packed` statement. It depends on compiler extension (ie, not portable).
* This method is safe if your compiler supports it, and *generally* as fast or faster than `memcpy`.
* Method 2 : direct access. This method is portable but violate C standard.
* It can generate buggy code on targets which generate assembly depending on alignment.
* But in some circumstances, it's the only known way to get the most performance (ie GCC + ARMv6)
* See https://fastcompression.blogspot.fr/2015/08/accessing-unaligned-memory.html for details.
* Prefer these methods in priority order (0 > 1 > 2)
*/
#ifndef LZ4_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
# if defined(__GNUC__) && ( defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) )
# define LZ4_FORCE_MEMORY_ACCESS 2
# elif defined(__INTEL_COMPILER) || \
(defined(__GNUC__) && ( defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__) ))
# define LZ4_FORCE_MEMORY_ACCESS 1
# endif
#endif
/*
* LZ4_FORCE_SW_BITCOUNT
* Define this parameter if your target system or compiler does not support hardware bit count
*/
#if defined(_MSC_VER) && defined(_WIN32_WCE) /* Visual Studio for Windows CE does not support Hardware bit count */
# define LZ4_FORCE_SW_BITCOUNT
#endif
/*-************************************
* Dependency
**************************************/
#include "compat-lz4.h"
/* see also "memory routines" below */
/*-************************************
* Compiler Options
**************************************/
#ifdef _MSC_VER /* Visual Studio */
# define FORCE_INLINE static __forceinline
# include <intrin.h>
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
# pragma warning(disable : 4293) /* disable: C4293: too large shift (32-bits) */
#else
# if defined(__GNUC__) || defined(__clang__)
# define FORCE_INLINE static inline __attribute__((always_inline))
# elif defined(__cplusplus) || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
# define FORCE_INLINE static inline
# else
# define FORCE_INLINE static
# endif
#endif /* _MSC_VER */
#if (defined(__GNUC__) && (__GNUC__ >= 3)) || (defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 800)) || defined(__clang__)
# define expect(expr,value) (__builtin_expect ((expr),(value)) )
#else
# define expect(expr,value) (expr)
#endif
#define likely(expr) expect((expr) != 0, 1)
#define unlikely(expr) expect((expr) != 0, 0)
/*-************************************
* Memory routines
**************************************/
#include <stdlib.h> /* malloc, calloc, free */
#define ALLOCATOR(n,s) calloc(n,s)
#define FREEMEM free
#include <string.h> /* memset, memcpy */
#define MEM_INIT memset
/*-************************************
* Basic Types
**************************************/
#if defined(__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
# include <stdint.h>
typedef uint8_t BYTE;
typedef uint16_t U16;
typedef uint32_t U32;
typedef int32_t S32;
typedef uint64_t U64;
typedef uintptr_t uptrval;
#else
typedef unsigned char BYTE;
typedef unsigned short U16;
typedef unsigned int U32;
typedef signed int S32;
typedef unsigned long long U64;
typedef size_t uptrval; /* generally true, except OpenVMS-64 */
#endif
#if defined(__x86_64__)
typedef U64 reg_t; /* 64-bits in x32 mode */
#else
typedef size_t reg_t; /* 32-bits in x32 mode */
#endif
/*-************************************
* Reading and writing into memory
**************************************/
static unsigned LZ4_isLittleEndian(void)
{
const union { U32 u; BYTE c[4]; } one = { 1 }; /* don't use static : performance detrimental */
return one.c[0];
}
#if defined(LZ4_FORCE_MEMORY_ACCESS) && (LZ4_FORCE_MEMORY_ACCESS==2)
/* lie to the compiler about data alignment; use with caution */
static U16 LZ4_read16(const void* memPtr) { return *(const U16*) memPtr; }
static U32 LZ4_read32(const void* memPtr) { return *(const U32*) memPtr; }
static reg_t LZ4_read_ARCH(const void* memPtr) { return *(const reg_t*) memPtr; }
static void LZ4_write16(void* memPtr, U16 value) { *(U16*)memPtr = value; }
static void LZ4_write32(void* memPtr, U32 value) { *(U32*)memPtr = value; }
#elif defined(LZ4_FORCE_MEMORY_ACCESS) && (LZ4_FORCE_MEMORY_ACCESS==1)
/* __pack instructions are safer, but compiler specific, hence potentially problematic for some compilers */
/* currently only defined for gcc and icc */
typedef union { U16 u16; U32 u32; reg_t uArch; } __attribute__((packed)) unalign;
static U16 LZ4_read16(const void* ptr) { return ((const unalign*)ptr)->u16; }
static U32 LZ4_read32(const void* ptr) { return ((const unalign*)ptr)->u32; }
static reg_t LZ4_read_ARCH(const void* ptr) { return ((const unalign*)ptr)->uArch; }
static void LZ4_write16(void* memPtr, U16 value) { ((unalign*)memPtr)->u16 = value; }
static void LZ4_write32(void* memPtr, U32 value) { ((unalign*)memPtr)->u32 = value; }
#else /* safe and portable access through memcpy() */
static U16 LZ4_read16(const void* memPtr)
{
U16 val; memcpy(&val, memPtr, sizeof(val)); return val;
}
static U32 LZ4_read32(const void* memPtr)
{
U32 val; memcpy(&val, memPtr, sizeof(val)); return val;
}
static reg_t LZ4_read_ARCH(const void* memPtr)
{
reg_t val; memcpy(&val, memPtr, sizeof(val)); return val;
}
static void LZ4_write16(void* memPtr, U16 value)
{
memcpy(memPtr, &value, sizeof(value));
}
static void LZ4_write32(void* memPtr, U32 value)
{
memcpy(memPtr, &value, sizeof(value));
}
#endif /* LZ4_FORCE_MEMORY_ACCESS */
static U16 LZ4_readLE16(const void* memPtr)
{
if (LZ4_isLittleEndian()) {
return LZ4_read16(memPtr);
} else {
const BYTE* p = (const BYTE*)memPtr;
return (U16)((U16)p[0] + (p[1]<<8));
}
}
static void LZ4_writeLE16(void* memPtr, U16 value)
{
if (LZ4_isLittleEndian()) {
LZ4_write16(memPtr, value);
} else {
BYTE* p = (BYTE*)memPtr;
p[0] = (BYTE) value;
p[1] = (BYTE)(value>>8);
}
}
static void LZ4_copy8(void* dst, const void* src)
{
memcpy(dst,src,8);
}
/* customized variant of memcpy, which can overwrite up to 8 bytes beyond dstEnd */
static void LZ4_wildCopy(void* dstPtr, const void* srcPtr, void* dstEnd)
{
BYTE* d = (BYTE*)dstPtr;
const BYTE* s = (const BYTE*)srcPtr;
BYTE* const e = (BYTE*)dstEnd;
do { LZ4_copy8(d,s); d+=8; s+=8; } while (d<e);
}
/*-************************************
* Common Constants
**************************************/
#define MINMATCH 4
#define WILDCOPYLENGTH 8
#define LASTLITERALS 5
#define MFLIMIT (WILDCOPYLENGTH+MINMATCH)
static const int LZ4_minLength = (MFLIMIT+1);
#define KB *(1 <<10)
#define MB *(1 <<20)
#define GB *(1U<<30)
#define MAXD_LOG 16
#define MAX_DISTANCE ((1 << MAXD_LOG) - 1)
#define ML_BITS 4
#define ML_MASK ((1U<<ML_BITS)-1)
#define RUN_BITS (8-ML_BITS)
#define RUN_MASK ((1U<<RUN_BITS)-1)
/*-************************************
* Common Utils
**************************************/
#define LZ4_STATIC_ASSERT(c) { enum { LZ4_static_assert = 1/(int)(!!(c)) }; } /* use only *after* variable declarations */
/*-************************************
* Common functions
**************************************/
static unsigned LZ4_NbCommonBytes (register reg_t val)
{
if (LZ4_isLittleEndian()) {
if (sizeof(val)==8) {
# if defined(_MSC_VER) && defined(_WIN64) && !defined(LZ4_FORCE_SW_BITCOUNT)
unsigned long r = 0;
_BitScanForward64( &r, (U64)val );
return (int)(r>>3);
# elif (defined(__clang__) || (defined(__GNUC__) && (__GNUC__>=3))) && !defined(LZ4_FORCE_SW_BITCOUNT)
return (__builtin_ctzll((U64)val) >> 3);
# else
static const int DeBruijnBytePos[64] = { 0, 0, 0, 0, 0, 1, 1, 2, 0, 3, 1, 3, 1, 4, 2, 7, 0, 2, 3, 6, 1, 5, 3, 5, 1, 3, 4, 4, 2, 5, 6, 7, 7, 0, 1, 2, 3, 3, 4, 6, 2, 6, 5, 5, 3, 4, 5, 6, 7, 1, 2, 4, 6, 4, 4, 5, 7, 2, 6, 5, 7, 6, 7, 7 };
return DeBruijnBytePos[((U64)((val & -(long long)val) * 0x0218A392CDABBD3FULL)) >> 58];
# endif
} else /* 32 bits */ {
# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT)
unsigned long r;
_BitScanForward( &r, (U32)val );
return (int)(r>>3);
# elif (defined(__clang__) || (defined(__GNUC__) && (__GNUC__>=3))) && !defined(LZ4_FORCE_SW_BITCOUNT)
return (__builtin_ctz((U32)val) >> 3);
# else
static const int DeBruijnBytePos[32] = { 0, 0, 3, 0, 3, 1, 3, 0, 3, 2, 2, 1, 3, 2, 0, 1, 3, 3, 1, 2, 2, 2, 2, 0, 3, 1, 2, 0, 1, 0, 1, 1 };
return DeBruijnBytePos[((U32)((val & -(S32)val) * 0x077CB531U)) >> 27];
# endif
}
} else /* Big Endian CPU */ {
if (sizeof(val)==8) {
# if defined(_MSC_VER) && defined(_WIN64) && !defined(LZ4_FORCE_SW_BITCOUNT)
unsigned long r = 0;
_BitScanReverse64( &r, val );
return (unsigned)(r>>3);
# elif (defined(__clang__) || (defined(__GNUC__) && (__GNUC__>=3))) && !defined(LZ4_FORCE_SW_BITCOUNT)
return (__builtin_clzll((U64)val) >> 3);
# else
unsigned r;
if (!(val>>32)) { r=4; } else { r=0; val>>=32; }
if (!(val>>16)) { r+=2; val>>=8; } else { val>>=24; }
r += (!val);
return r;
# endif
} else /* 32 bits */ {
# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT)
unsigned long r = 0;
_BitScanReverse( &r, (unsigned long)val );
return (unsigned)(r>>3);
# elif (defined(__clang__) || (defined(__GNUC__) && (__GNUC__>=3))) && !defined(LZ4_FORCE_SW_BITCOUNT)
return (__builtin_clz((U32)val) >> 3);
# else
unsigned r;
if (!(val>>16)) { r=2; val>>=8; } else { r=0; val>>=24; }
r += (!val);
return r;
# endif
}
}
}
#define STEPSIZE sizeof(reg_t)
static unsigned LZ4_count(const BYTE* pIn, const BYTE* pMatch, const BYTE* pInLimit)
{
const BYTE* const pStart = pIn;
while (likely(pIn<pInLimit-(STEPSIZE-1))) {
reg_t const diff = LZ4_read_ARCH(pMatch) ^ LZ4_read_ARCH(pIn);
if (!diff) { pIn+=STEPSIZE; pMatch+=STEPSIZE; continue; }
pIn += LZ4_NbCommonBytes(diff);
return (unsigned)(pIn - pStart);
}
if ((STEPSIZE==8) && (pIn<(pInLimit-3)) && (LZ4_read32(pMatch) == LZ4_read32(pIn))) { pIn+=4; pMatch+=4; }
if ((pIn<(pInLimit-1)) && (LZ4_read16(pMatch) == LZ4_read16(pIn))) { pIn+=2; pMatch+=2; }
if ((pIn<pInLimit) && (*pMatch == *pIn)) pIn++;
return (unsigned)(pIn - pStart);
}
#ifndef LZ4_COMMONDEFS_ONLY
/*-************************************
* Local Constants
**************************************/
static const int LZ4_64Klimit = ((64 KB) + (MFLIMIT-1));
static const U32 LZ4_skipTrigger = 6; /* Increase this value ==> compression run slower on incompressible data */
/*-************************************
* Local Structures and types
**************************************/
typedef enum { notLimited = 0, limitedOutput = 1 } limitedOutput_directive;
typedef enum { byPtr, byU32, byU16 } tableType_t;
typedef enum { noDict = 0, withPrefix64k, usingExtDict } dict_directive;
typedef enum { noDictIssue = 0, dictSmall } dictIssue_directive;
typedef enum { endOnOutputSize = 0, endOnInputSize = 1 } endCondition_directive;
typedef enum { full = 0, partial = 1 } earlyEnd_directive;
/*-************************************
* Local Utils
**************************************/
int LZ4_versionNumber (void) { return LZ4_VERSION_NUMBER; }
const char* LZ4_versionString(void) { return LZ4_VERSION_STRING; }
int LZ4_compressBound(int isize) { return LZ4_COMPRESSBOUND(isize); }
int LZ4_sizeofState() { return LZ4_STREAMSIZE; }
/*-******************************
* Compression functions
********************************/
static U32 LZ4_hash4(U32 sequence, tableType_t const tableType)
{
if (tableType == byU16)
return ((sequence * 2654435761U) >> ((MINMATCH*8)-(LZ4_HASHLOG+1)));
else
return ((sequence * 2654435761U) >> ((MINMATCH*8)-LZ4_HASHLOG));
}
static U32 LZ4_hash5(U64 sequence, tableType_t const tableType)
{
static const U64 prime5bytes = 889523592379ULL;
static const U64 prime8bytes = 11400714785074694791ULL;
const U32 hashLog = (tableType == byU16) ? LZ4_HASHLOG+1 : LZ4_HASHLOG;
if (LZ4_isLittleEndian())
return (U32)(((sequence << 24) * prime5bytes) >> (64 - hashLog));
else
return (U32)(((sequence >> 24) * prime8bytes) >> (64 - hashLog));
}
FORCE_INLINE U32 LZ4_hashPosition(const void* const p, tableType_t const tableType)
{
if ((sizeof(reg_t)==8) && (tableType != byU16)) return LZ4_hash5(LZ4_read_ARCH(p), tableType);
return LZ4_hash4(LZ4_read32(p), tableType);
}
static void LZ4_putPositionOnHash(const BYTE* p, U32 h, void* tableBase, tableType_t const tableType, const BYTE* srcBase)
{
switch (tableType)
{
case byPtr: { const BYTE** hashTable = (const BYTE**)tableBase; hashTable[h] = p; return; }
case byU32: { U32* hashTable = (U32*) tableBase; hashTable[h] = (U32)(p-srcBase); return; }
case byU16: { U16* hashTable = (U16*) tableBase; hashTable[h] = (U16)(p-srcBase); return; }
}
}
FORCE_INLINE void LZ4_putPosition(const BYTE* p, void* tableBase, tableType_t tableType, const BYTE* srcBase)
{
U32 const h = LZ4_hashPosition(p, tableType);
LZ4_putPositionOnHash(p, h, tableBase, tableType, srcBase);
}
static const BYTE* LZ4_getPositionOnHash(U32 h, void* tableBase, tableType_t tableType, const BYTE* srcBase)
{
if (tableType == byPtr) { const BYTE** hashTable = (const BYTE**) tableBase; return hashTable[h]; }
if (tableType == byU32) { const U32* const hashTable = (U32*) tableBase; return hashTable[h] + srcBase; }
{ const U16* const hashTable = (U16*) tableBase; return hashTable[h] + srcBase; } /* default, to ensure a return */
}
FORCE_INLINE const BYTE* LZ4_getPosition(const BYTE* p, void* tableBase, tableType_t tableType, const BYTE* srcBase)
{
U32 const h = LZ4_hashPosition(p, tableType);
return LZ4_getPositionOnHash(h, tableBase, tableType, srcBase);
}
/** LZ4_compress_generic() :
inlined, to ensure branches are decided at compilation time */
FORCE_INLINE int LZ4_compress_generic(
LZ4_stream_t_internal* const cctx,
const char* const source,
char* const dest,
const int inputSize,
const int maxOutputSize,
const limitedOutput_directive outputLimited,
const tableType_t tableType,
const dict_directive dict,
const dictIssue_directive dictIssue,
const U32 acceleration)
{
const BYTE* ip = (const BYTE*) source;
const BYTE* base;
const BYTE* lowLimit;
const BYTE* const lowRefLimit = ip - cctx->dictSize;
const BYTE* const dictionary = cctx->dictionary;
const BYTE* const dictEnd = dictionary + cctx->dictSize;
const ptrdiff_t dictDelta = dictEnd - (const BYTE*)source;
const BYTE* anchor = (const BYTE*) source;
const BYTE* const iend = ip + inputSize;
const BYTE* const mflimit = iend - MFLIMIT;
const BYTE* const matchlimit = iend - LASTLITERALS;
BYTE* op = (BYTE*) dest;
BYTE* const olimit = op + maxOutputSize;
U32 forwardH;
/* Init conditions */
if ((U32)inputSize > (U32)LZ4_MAX_INPUT_SIZE) return 0; /* Unsupported inputSize, too large (or negative) */
switch(dict)
{
case noDict:
default:
base = (const BYTE*)source;
lowLimit = (const BYTE*)source;
break;
case withPrefix64k:
base = (const BYTE*)source - cctx->currentOffset;
lowLimit = (const BYTE*)source - cctx->dictSize;
break;
case usingExtDict:
base = (const BYTE*)source - cctx->currentOffset;
lowLimit = (const BYTE*)source;
break;
}
if ((tableType == byU16) && (inputSize>=LZ4_64Klimit)) return 0; /* Size too large (not within 64K limit) */
if (inputSize<LZ4_minLength) goto _last_literals; /* Input too small, no compression (all literals) */
/* First Byte */
LZ4_putPosition(ip, cctx->hashTable, tableType, base);
ip++; forwardH = LZ4_hashPosition(ip, tableType);
/* Main Loop */
for ( ; ; ) {
ptrdiff_t refDelta = 0;
const BYTE* match;
BYTE* token;
/* Find a match */
{ const BYTE* forwardIp = ip;
unsigned step = 1;
unsigned searchMatchNb = acceleration << LZ4_skipTrigger;
do {
U32 const h = forwardH;
ip = forwardIp;
forwardIp += step;
step = (searchMatchNb++ >> LZ4_skipTrigger);
if (unlikely(forwardIp > mflimit)) goto _last_literals;
match = LZ4_getPositionOnHash(h, cctx->hashTable, tableType, base);
if (dict==usingExtDict) {
if (match < (const BYTE*)source) {
refDelta = dictDelta;
lowLimit = dictionary;
} else {
refDelta = 0;
lowLimit = (const BYTE*)source;
} }
forwardH = LZ4_hashPosition(forwardIp, tableType);
LZ4_putPositionOnHash(ip, h, cctx->hashTable, tableType, base);
} while ( ((dictIssue==dictSmall) ? (match < lowRefLimit) : 0)
|| ((tableType==byU16) ? 0 : (match + MAX_DISTANCE < ip))
|| (LZ4_read32(match+refDelta) != LZ4_read32(ip)) );
}
/* Catch up */
while (((ip>anchor) & (match+refDelta > lowLimit)) && (unlikely(ip[-1]==match[refDelta-1]))) { ip--; match--; }
/* Encode Literals */
{ unsigned const litLength = (unsigned)(ip - anchor);
token = op++;
if ((outputLimited) && /* Check output buffer overflow */
(unlikely(op + litLength + (2 + 1 + LASTLITERALS) + (litLength/255) > olimit)))
return 0;
if (litLength >= RUN_MASK) {
int len = (int)litLength-RUN_MASK;
*token = (RUN_MASK<<ML_BITS);
for(; len >= 255 ; len-=255) *op++ = 255;
*op++ = (BYTE)len;
}
else *token = (BYTE)(litLength<<ML_BITS);
/* Copy Literals */
LZ4_wildCopy(op, anchor, op+litLength);
op+=litLength;
}
_next_match:
/* Encode Offset */
LZ4_writeLE16(op, (U16)(ip-match)); op+=2;
/* Encode MatchLength */
{ unsigned matchCode;
if ((dict==usingExtDict) && (lowLimit==dictionary)) {
const BYTE* limit;
match += refDelta;
limit = ip + (dictEnd-match);
if (limit > matchlimit) limit = matchlimit;
matchCode = LZ4_count(ip+MINMATCH, match+MINMATCH, limit);
ip += MINMATCH + matchCode;
if (ip==limit) {
unsigned const more = LZ4_count(ip, (const BYTE*)source, matchlimit);
matchCode += more;
ip += more;
}
} else {
matchCode = LZ4_count(ip+MINMATCH, match+MINMATCH, matchlimit);
ip += MINMATCH + matchCode;
}
if ( outputLimited && /* Check output buffer overflow */
(unlikely(op + (1 + LASTLITERALS) + (matchCode>>8) > olimit)) )
return 0;
if (matchCode >= ML_MASK) {
*token += ML_MASK;
matchCode -= ML_MASK;
LZ4_write32(op, 0xFFFFFFFF);
while (matchCode >= 4*255) op+=4, LZ4_write32(op, 0xFFFFFFFF), matchCode -= 4*255;
op += matchCode / 255;
*op++ = (BYTE)(matchCode % 255);
} else
*token += (BYTE)(matchCode);
}
anchor = ip;
/* Test end of chunk */
if (ip > mflimit) break;
/* Fill table */
LZ4_putPosition(ip-2, cctx->hashTable, tableType, base);
/* Test next position */
match = LZ4_getPosition(ip, cctx->hashTable, tableType, base);
if (dict==usingExtDict) {
if (match < (const BYTE*)source) {
refDelta = dictDelta;
lowLimit = dictionary;
} else {
refDelta = 0;
lowLimit = (const BYTE*)source;
} }
LZ4_putPosition(ip, cctx->hashTable, tableType, base);
if ( ((dictIssue==dictSmall) ? (match>=lowRefLimit) : 1)
&& (match+MAX_DISTANCE>=ip)
&& (LZ4_read32(match+refDelta)==LZ4_read32(ip)) )
{ token=op++; *token=0; goto _next_match; }
/* Prepare next loop */
forwardH = LZ4_hashPosition(++ip, tableType);
}
_last_literals:
/* Encode Last Literals */
{ size_t const lastRun = (size_t)(iend - anchor);
if ( (outputLimited) && /* Check output buffer overflow */
((op - (BYTE*)dest) + lastRun + 1 + ((lastRun+255-RUN_MASK)/255) > (U32)maxOutputSize) )
return 0;
if (lastRun >= RUN_MASK) {
size_t accumulator = lastRun - RUN_MASK;
*op++ = RUN_MASK << ML_BITS;
for(; accumulator >= 255 ; accumulator-=255) *op++ = 255;
*op++ = (BYTE) accumulator;
} else {
*op++ = (BYTE)(lastRun<<ML_BITS);
}
memcpy(op, anchor, lastRun);
op += lastRun;
}
/* End */
return (int) (((char*)op)-dest);
}
int LZ4_compress_fast_extState(void* state, const char* source, char* dest, int inputSize, int maxOutputSize, int acceleration)
{
LZ4_stream_t_internal* ctx = &((LZ4_stream_t*)state)->internal_donotuse;
LZ4_resetStream((LZ4_stream_t*)state);
if (acceleration < 1) acceleration = ACCELERATION_DEFAULT;
if (maxOutputSize >= LZ4_compressBound(inputSize)) {
if (inputSize < LZ4_64Klimit)
return LZ4_compress_generic(ctx, source, dest, inputSize, 0, notLimited, byU16, noDict, noDictIssue, acceleration);
else
return LZ4_compress_generic(ctx, source, dest, inputSize, 0, notLimited, (sizeof(void*)==8) ? byU32 : byPtr, noDict, noDictIssue, acceleration);
} else {
if (inputSize < LZ4_64Klimit)
return LZ4_compress_generic(ctx, source, dest, inputSize, maxOutputSize, limitedOutput, byU16, noDict, noDictIssue, acceleration);
else
return LZ4_compress_generic(ctx, source, dest, inputSize, maxOutputSize, limitedOutput, (sizeof(void*)==8) ? byU32 : byPtr, noDict, noDictIssue, acceleration);
}
}
int LZ4_compress_fast(const char* source, char* dest, int inputSize, int maxOutputSize, int acceleration)
{
#if (HEAPMODE)
void* ctxPtr = ALLOCATOR(1, sizeof(LZ4_stream_t)); /* malloc-calloc always properly aligned */
#else
LZ4_stream_t ctx;
void* const ctxPtr = &ctx;
#endif
int const result = LZ4_compress_fast_extState(ctxPtr, source, dest, inputSize, maxOutputSize, acceleration);
#if (HEAPMODE)
FREEMEM(ctxPtr);
#endif
return result;
}
int LZ4_compress_default(const char* source, char* dest, int inputSize, int maxOutputSize)
{
return LZ4_compress_fast(source, dest, inputSize, maxOutputSize, 1);
}
/* hidden debug function */
/* strangely enough, gcc generates faster code when this function is uncommented, even if unused */
int LZ4_compress_fast_force(const char* source, char* dest, int inputSize, int maxOutputSize, int acceleration)
{
LZ4_stream_t ctx;
LZ4_resetStream(&ctx);
if (inputSize < LZ4_64Klimit)
return LZ4_compress_generic(&ctx.internal_donotuse, source, dest, inputSize, maxOutputSize, limitedOutput, byU16, noDict, noDictIssue, acceleration);
else
return LZ4_compress_generic(&ctx.internal_donotuse, source, dest, inputSize, maxOutputSize, limitedOutput, sizeof(void*)==8 ? byU32 : byPtr, noDict, noDictIssue, acceleration);
}
/*-******************************
* *_destSize() variant
********************************/
static int LZ4_compress_destSize_generic(
LZ4_stream_t_internal* const ctx,
const char* const src,
char* const dst,
int* const srcSizePtr,
const int targetDstSize,
const tableType_t tableType)
{
const BYTE* ip = (const BYTE*) src;
const BYTE* base = (const BYTE*) src;
const BYTE* lowLimit = (const BYTE*) src;
const BYTE* anchor = ip;
const BYTE* const iend = ip + *srcSizePtr;
const BYTE* const mflimit = iend - MFLIMIT;
const BYTE* const matchlimit = iend - LASTLITERALS;
BYTE* op = (BYTE*) dst;
BYTE* const oend = op + targetDstSize;
BYTE* const oMaxLit = op + targetDstSize - 2 /* offset */ - 8 /* because 8+MINMATCH==MFLIMIT */ - 1 /* token */;
BYTE* const oMaxMatch = op + targetDstSize - (LASTLITERALS + 1 /* token */);
BYTE* const oMaxSeq = oMaxLit - 1 /* token */;
U32 forwardH;
/* Init conditions */
if (targetDstSize < 1) return 0; /* Impossible to store anything */
if ((U32)*srcSizePtr > (U32)LZ4_MAX_INPUT_SIZE) return 0; /* Unsupported input size, too large (or negative) */
if ((tableType == byU16) && (*srcSizePtr>=LZ4_64Klimit)) return 0; /* Size too large (not within 64K limit) */
if (*srcSizePtr<LZ4_minLength) goto _last_literals; /* Input too small, no compression (all literals) */
/* First Byte */
*srcSizePtr = 0;
LZ4_putPosition(ip, ctx->hashTable, tableType, base);
ip++; forwardH = LZ4_hashPosition(ip, tableType);
/* Main Loop */
for ( ; ; ) {
const BYTE* match;
BYTE* token;
/* Find a match */
{ const BYTE* forwardIp = ip;
unsigned step = 1;
unsigned searchMatchNb = 1 << LZ4_skipTrigger;
do {
U32 h = forwardH;
ip = forwardIp;
forwardIp += step;
step = (searchMatchNb++ >> LZ4_skipTrigger);
if (unlikely(forwardIp > mflimit)) goto _last_literals;
match = LZ4_getPositionOnHash(h, ctx->hashTable, tableType, base);
forwardH = LZ4_hashPosition(forwardIp, tableType);
LZ4_putPositionOnHash(ip, h, ctx->hashTable, tableType, base);
} while ( ((tableType==byU16) ? 0 : (match + MAX_DISTANCE < ip))
|| (LZ4_read32(match) != LZ4_read32(ip)) );
}
/* Catch up */
while ((ip>anchor) && (match > lowLimit) && (unlikely(ip[-1]==match[-1]))) { ip--; match--; }
/* Encode Literal length */
{ unsigned litLength = (unsigned)(ip - anchor);
token = op++;
if (op + ((litLength+240)/255) + litLength > oMaxLit) {
/* Not enough space for a last match */
op--;
goto _last_literals;
}
if (litLength>=RUN_MASK) {
unsigned len = litLength - RUN_MASK;
*token=(RUN_MASK<<ML_BITS);
for(; len >= 255 ; len-=255) *op++ = 255;
*op++ = (BYTE)len;
}
else *token = (BYTE)(litLength<<ML_BITS);
/* Copy Literals */
LZ4_wildCopy(op, anchor, op+litLength);
op += litLength;
}
_next_match:
/* Encode Offset */
LZ4_writeLE16(op, (U16)(ip-match)); op+=2;
/* Encode MatchLength */
{ size_t matchLength = LZ4_count(ip+MINMATCH, match+MINMATCH, matchlimit);
if (op + ((matchLength+240)/255) > oMaxMatch) {
/* Match description too long : reduce it */
matchLength = (15-1) + (oMaxMatch-op) * 255;
}
ip += MINMATCH + matchLength;
if (matchLength>=ML_MASK) {
*token += ML_MASK;
matchLength -= ML_MASK;
while (matchLength >= 255) { matchLength-=255; *op++ = 255; }
*op++ = (BYTE)matchLength;
}
else *token += (BYTE)(matchLength);
}
anchor = ip;
/* Test end of block */
if (ip > mflimit) break;
if (op > oMaxSeq) break;
/* Fill table */
LZ4_putPosition(ip-2, ctx->hashTable, tableType, base);
/* Test next position */
match = LZ4_getPosition(ip, ctx->hashTable, tableType, base);
LZ4_putPosition(ip, ctx->hashTable, tableType, base);
if ( (match+MAX_DISTANCE>=ip)
&& (LZ4_read32(match)==LZ4_read32(ip)) )
{ token=op++; *token=0; goto _next_match; }
/* Prepare next loop */
forwardH = LZ4_hashPosition(++ip, tableType);
}
_last_literals:
/* Encode Last Literals */
{ size_t lastRunSize = (size_t)(iend - anchor);
if (op + 1 /* token */ + ((lastRunSize+240)/255) /* litLength */ + lastRunSize /* literals */ > oend) {
/* adapt lastRunSize to fill 'dst' */
lastRunSize = (oend-op) - 1;
lastRunSize -= (lastRunSize+240)/255;
}
ip = anchor + lastRunSize;
if (lastRunSize >= RUN_MASK) {
size_t accumulator = lastRunSize - RUN_MASK;
*op++ = RUN_MASK << ML_BITS;
for(; accumulator >= 255 ; accumulator-=255) *op++ = 255;
*op++ = (BYTE) accumulator;
} else {
*op++ = (BYTE)(lastRunSize<<ML_BITS);
}
memcpy(op, anchor, lastRunSize);
op += lastRunSize;
}
/* End */
*srcSizePtr = (int) (((const char*)ip)-src);
return (int) (((char*)op)-dst);
}
static int LZ4_compress_destSize_extState (LZ4_stream_t* state, const char* src, char* dst, int* srcSizePtr, int targetDstSize)
{
LZ4_resetStream(state);
if (targetDstSize >= LZ4_compressBound(*srcSizePtr)) { /* compression success is guaranteed */
return LZ4_compress_fast_extState(state, src, dst, *srcSizePtr, targetDstSize, 1);
} else {
if (*srcSizePtr < LZ4_64Klimit)
return LZ4_compress_destSize_generic(&state->internal_donotuse, src, dst, srcSizePtr, targetDstSize, byU16);
else
return LZ4_compress_destSize_generic(&state->internal_donotuse, src, dst, srcSizePtr, targetDstSize, sizeof(void*)==8 ? byU32 : byPtr);
}
}
int LZ4_compress_destSize(const char* src, char* dst, int* srcSizePtr, int targetDstSize)
{
#if (HEAPMODE)
LZ4_stream_t* ctx = (LZ4_stream_t*)ALLOCATOR(1, sizeof(LZ4_stream_t)); /* malloc-calloc always properly aligned */
#else
LZ4_stream_t ctxBody;
LZ4_stream_t* ctx = &ctxBody;
#endif
int result = LZ4_compress_destSize_extState(ctx, src, dst, srcSizePtr, targetDstSize);
#if (HEAPMODE)
FREEMEM(ctx);
#endif
return result;
}
/*-******************************
* Streaming functions
********************************/
LZ4_stream_t* LZ4_createStream(void)
{
LZ4_stream_t* lz4s = (LZ4_stream_t*)ALLOCATOR(8, LZ4_STREAMSIZE_U64);
LZ4_STATIC_ASSERT(LZ4_STREAMSIZE >= sizeof(LZ4_stream_t_internal)); /* A compilation error here means LZ4_STREAMSIZE is not large enough */
LZ4_resetStream(lz4s);
return lz4s;
}
void LZ4_resetStream (LZ4_stream_t* LZ4_stream)
{
MEM_INIT(LZ4_stream, 0, sizeof(LZ4_stream_t));
}
int LZ4_freeStream (LZ4_stream_t* LZ4_stream)
{
FREEMEM(LZ4_stream);
return (0);
}
#define HASH_UNIT sizeof(reg_t)
int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize)
{
LZ4_stream_t_internal* dict = &LZ4_dict->internal_donotuse;
const BYTE* p = (const BYTE*)dictionary;
const BYTE* const dictEnd = p + dictSize;
const BYTE* base;
if ((dict->initCheck) || (dict->currentOffset > 1 GB)) /* Uninitialized structure, or reuse overflow */
LZ4_resetStream(LZ4_dict);
if (dictSize < (int)HASH_UNIT) {
dict->dictionary = NULL;
dict->dictSize = 0;
return 0;
}
if ((dictEnd - p) > 64 KB) p = dictEnd - 64 KB;
dict->currentOffset += 64 KB;
base = p - dict->currentOffset;
dict->dictionary = p;
dict->dictSize = (U32)(dictEnd - p);
dict->currentOffset += dict->dictSize;
while (p <= dictEnd-HASH_UNIT) {
LZ4_putPosition(p, dict->hashTable, byU32, base);
p+=3;
}
return dict->dictSize;
}
static void LZ4_renormDictT(LZ4_stream_t_internal* LZ4_dict, const BYTE* src)
{
if ((LZ4_dict->currentOffset > 0x80000000) ||
((uptrval)LZ4_dict->currentOffset > (uptrval)src)) { /* address space overflow */
/* rescale hash table */
U32 const delta = LZ4_dict->currentOffset - 64 KB;
const BYTE* dictEnd = LZ4_dict->dictionary + LZ4_dict->dictSize;
int i;
for (i=0; i<LZ4_HASH_SIZE_U32; i++) {
if (LZ4_dict->hashTable[i] < delta) LZ4_dict->hashTable[i]=0;
else LZ4_dict->hashTable[i] -= delta;
}
LZ4_dict->currentOffset = 64 KB;
if (LZ4_dict->dictSize > 64 KB) LZ4_dict->dictSize = 64 KB;
LZ4_dict->dictionary = dictEnd - LZ4_dict->dictSize;
}
}
int LZ4_compress_fast_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize, int maxOutputSize, int acceleration)
{
LZ4_stream_t_internal* streamPtr = &LZ4_stream->internal_donotuse;
const BYTE* const dictEnd = streamPtr->dictionary + streamPtr->dictSize;
const BYTE* smallest = (const BYTE*) source;
if (streamPtr->initCheck) return 0; /* Uninitialized structure detected */
if ((streamPtr->dictSize>0) && (smallest>dictEnd)) smallest = dictEnd;
LZ4_renormDictT(streamPtr, smallest);
if (acceleration < 1) acceleration = ACCELERATION_DEFAULT;
/* Check overlapping input/dictionary space */
{ const BYTE* sourceEnd = (const BYTE*) source + inputSize;
if ((sourceEnd > streamPtr->dictionary) && (sourceEnd < dictEnd)) {
streamPtr->dictSize = (U32)(dictEnd - sourceEnd);
if (streamPtr->dictSize > 64 KB) streamPtr->dictSize = 64 KB;
if (streamPtr->dictSize < 4) streamPtr->dictSize = 0;
streamPtr->dictionary = dictEnd - streamPtr->dictSize;
}
}
/* prefix mode : source data follows dictionary */
if (dictEnd == (const BYTE*)source) {
int result;
if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset))
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, maxOutputSize, limitedOutput, byU32, withPrefix64k, dictSmall, acceleration);
else
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, maxOutputSize, limitedOutput, byU32, withPrefix64k, noDictIssue, acceleration);
streamPtr->dictSize += (U32)inputSize;
streamPtr->currentOffset += (U32)inputSize;
return result;
}
/* external dictionary mode */
{ int result;
if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset))
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, maxOutputSize, limitedOutput, byU32, usingExtDict, dictSmall, acceleration);
else
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, maxOutputSize, limitedOutput, byU32, usingExtDict, noDictIssue, acceleration);
streamPtr->dictionary = (const BYTE*)source;
streamPtr->dictSize = (U32)inputSize;
streamPtr->currentOffset += (U32)inputSize;
return result;
}
}
/* Hidden debug function, to force external dictionary mode */
int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_dict, const char* source, char* dest, int inputSize)
{
LZ4_stream_t_internal* streamPtr = &LZ4_dict->internal_donotuse;
int result;
const BYTE* const dictEnd = streamPtr->dictionary + streamPtr->dictSize;
const BYTE* smallest = dictEnd;
if (smallest > (const BYTE*) source) smallest = (const BYTE*) source;
LZ4_renormDictT(streamPtr, smallest);
result = LZ4_compress_generic(streamPtr, source, dest, inputSize, 0, notLimited, byU32, usingExtDict, noDictIssue, 1);
streamPtr->dictionary = (const BYTE*)source;
streamPtr->dictSize = (U32)inputSize;
streamPtr->currentOffset += (U32)inputSize;
return result;
}
/*! LZ4_saveDict() :
* If previously compressed data block is not guaranteed to remain available at its memory location,
* save it into a safer place (char* safeBuffer).
* Note : you don't need to call LZ4_loadDict() afterwards,
* dictionary is immediately usable, you can therefore call LZ4_compress_fast_continue().
* Return : saved dictionary size in bytes (necessarily <= dictSize), or 0 if error.
*/
int LZ4_saveDict (LZ4_stream_t* LZ4_dict, char* safeBuffer, int dictSize)
{
LZ4_stream_t_internal* const dict = &LZ4_dict->internal_donotuse;
const BYTE* const previousDictEnd = dict->dictionary + dict->dictSize;
if ((U32)dictSize > 64 KB) dictSize = 64 KB; /* useless to define a dictionary > 64 KB */
if ((U32)dictSize > dict->dictSize) dictSize = dict->dictSize;
memmove(safeBuffer, previousDictEnd - dictSize, dictSize);
dict->dictionary = (const BYTE*)safeBuffer;
dict->dictSize = (U32)dictSize;
return dictSize;
}
/*-*****************************
* Decompression functions
*******************************/
/*! LZ4_decompress_generic() :
* This generic decompression function cover all use cases.
* It shall be instantiated several times, using different sets of directives
* Note that it is important this generic function is really inlined,
* in order to remove useless branches during compilation optimization.
*/
FORCE_INLINE int LZ4_decompress_generic(
const char* const source,
char* const dest,
int inputSize,
int outputSize, /* If endOnInput==endOnInputSize, this value is the max size of Output Buffer. */
int endOnInput, /* endOnOutputSize, endOnInputSize */
int partialDecoding, /* full, partial */
int targetOutputSize, /* only used if partialDecoding==partial */
int dict, /* noDict, withPrefix64k, usingExtDict */
const BYTE* const lowPrefix, /* == dest when no prefix */
const BYTE* const dictStart, /* only if dict==usingExtDict */
const size_t dictSize /* note : = 0 if noDict */
)
{
/* Local Variables */
const BYTE* ip = (const BYTE*) source;
const BYTE* const iend = ip + inputSize;
BYTE* op = (BYTE*) dest;
BYTE* const oend = op + outputSize;
BYTE* cpy;
BYTE* oexit = op + targetOutputSize;
const BYTE* const lowLimit = lowPrefix - dictSize;
const BYTE* const dictEnd = (const BYTE*)dictStart + dictSize;
const unsigned dec32table[] = {0, 1, 2, 1, 4, 4, 4, 4};
const int dec64table[] = {0, 0, 0, -1, 0, 1, 2, 3};
const int safeDecode = (endOnInput==endOnInputSize);
const int checkOffset = ((safeDecode) && (dictSize < (int)(64 KB)));
/* Special cases */
if ((partialDecoding) && (oexit > oend-MFLIMIT)) oexit = oend-MFLIMIT; /* targetOutputSize too high => decode everything */
if ((endOnInput) && (unlikely(outputSize==0))) return ((inputSize==1) && (*ip==0)) ? 0 : -1; /* Empty output buffer */
if ((!endOnInput) && (unlikely(outputSize==0))) return (*ip==0?1:-1);
/* Main Loop : decode sequences */
while (1) {
size_t length;
const BYTE* match;
size_t offset;
/* get literal length */
unsigned const token = *ip++;
if ((length=(token>>ML_BITS)) == RUN_MASK) {
unsigned s;
do {
s = *ip++;
length += s;
} while ( likely(endOnInput ? ip<iend-RUN_MASK : 1) & (s==255) );
if ((safeDecode) && unlikely((uptrval)(op)+length<(uptrval)(op))) goto _output_error; /* overflow detection */
if ((safeDecode) && unlikely((uptrval)(ip)+length<(uptrval)(ip))) goto _output_error; /* overflow detection */
}
/* copy literals */
cpy = op+length;
if ( ((endOnInput) && ((cpy>(partialDecoding?oexit:oend-MFLIMIT)) || (ip+length>iend-(2+1+LASTLITERALS))) )
|| ((!endOnInput) && (cpy>oend-WILDCOPYLENGTH)) )
{
if (partialDecoding) {
if (cpy > oend) goto _output_error; /* Error : write attempt beyond end of output buffer */
if ((endOnInput) && (ip+length > iend)) goto _output_error; /* Error : read attempt beyond end of input buffer */
} else {
if ((!endOnInput) && (cpy != oend)) goto _output_error; /* Error : block decoding must stop exactly there */
if ((endOnInput) && ((ip+length != iend) || (cpy > oend))) goto _output_error; /* Error : input must be consumed */
}
memcpy(op, ip, length);
ip += length;
op += length;
break; /* Necessarily EOF, due to parsing restrictions */
}
LZ4_wildCopy(op, ip, cpy);
ip += length; op = cpy;
/* get offset */
offset = LZ4_readLE16(ip); ip+=2;
match = op - offset;
if ((checkOffset) && (unlikely(match < lowLimit))) goto _output_error; /* Error : offset outside buffers */
LZ4_write32(op, (U32)offset); /* costs ~1%; silence an msan warning when offset==0 */
/* get matchlength */
length = token & ML_MASK;
if (length == ML_MASK) {
unsigned s;
do {
s = *ip++;
if ((endOnInput) && (ip > iend-LASTLITERALS)) goto _output_error;
length += s;
} while (s==255);
if ((safeDecode) && unlikely((uptrval)(op)+length<(uptrval)op)) goto _output_error; /* overflow detection */
}
length += MINMATCH;
/* check external dictionary */
if ((dict==usingExtDict) && (match < lowPrefix)) {
if (unlikely(op+length > oend-LASTLITERALS)) goto _output_error; /* doesn't respect parsing restriction */
if (length <= (size_t)(lowPrefix-match)) {
/* match can be copied as a single segment from external dictionary */
memmove(op, dictEnd - (lowPrefix-match), length);
op += length;
} else {
/* match encompass external dictionary and current block */
size_t const copySize = (size_t)(lowPrefix-match);
size_t const restSize = length - copySize;
memcpy(op, dictEnd - copySize, copySize);
op += copySize;
if (restSize > (size_t)(op-lowPrefix)) { /* overlap copy */
BYTE* const endOfMatch = op + restSize;
const BYTE* copyFrom = lowPrefix;
while (op < endOfMatch) *op++ = *copyFrom++;
} else {
memcpy(op, lowPrefix, restSize);
op += restSize;
} }
continue;
}
/* copy match within block */
cpy = op + length;
if (unlikely(offset<8)) {
const int dec64 = dec64table[offset];
op[0] = match[0];
op[1] = match[1];
op[2] = match[2];
op[3] = match[3];
match += dec32table[offset];
memcpy(op+4, match, 4);
match -= dec64;
} else { LZ4_copy8(op, match); match+=8; }
op += 8;
if (unlikely(cpy>oend-12)) {
BYTE* const oCopyLimit = oend-(WILDCOPYLENGTH-1);
if (cpy > oend-LASTLITERALS) goto _output_error; /* Error : last LASTLITERALS bytes must be literals (uncompressed) */
if (op < oCopyLimit) {
LZ4_wildCopy(op, match, oCopyLimit);
match += oCopyLimit - op;
op = oCopyLimit;
}
while (op<cpy) *op++ = *match++;
} else {
LZ4_copy8(op, match);
if (length>16) LZ4_wildCopy(op+8, match+8, cpy);
}
op=cpy; /* correction */
}
/* end of decoding */
if (endOnInput)
return (int) (((char*)op)-dest); /* Nb of output bytes decoded */
else
return (int) (((const char*)ip)-source); /* Nb of input bytes read */
/* Overflow error detected */
_output_error:
return (int) (-(((const char*)ip)-source))-1;
}
int LZ4_decompress_safe(const char* source, char* dest, int compressedSize, int maxDecompressedSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxDecompressedSize, endOnInputSize, full, 0, noDict, (BYTE*)dest, NULL, 0);
}
int LZ4_decompress_safe_partial(const char* source, char* dest, int compressedSize, int targetOutputSize, int maxDecompressedSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxDecompressedSize, endOnInputSize, partial, targetOutputSize, noDict, (BYTE*)dest, NULL, 0);
}
int LZ4_decompress_fast(const char* source, char* dest, int originalSize)
{
return LZ4_decompress_generic(source, dest, 0, originalSize, endOnOutputSize, full, 0, withPrefix64k, (BYTE*)(dest - 64 KB), NULL, 64 KB);
}
/*===== streaming decompression functions =====*/
/*
* If you prefer dynamic allocation methods,
* LZ4_createStreamDecode()
* provides a pointer (void*) towards an initialized LZ4_streamDecode_t structure.
*/
LZ4_streamDecode_t* LZ4_createStreamDecode(void)
{
LZ4_streamDecode_t* lz4s = (LZ4_streamDecode_t*) ALLOCATOR(1, sizeof(LZ4_streamDecode_t));
return lz4s;
}
int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream)
{
FREEMEM(LZ4_stream);
return 0;
}
/*!
* LZ4_setStreamDecode() :
* Use this function to instruct where to find the dictionary.
* This function is not necessary if previous data is still available where it was decoded.
* Loading a size of 0 is allowed (same effect as no dictionary).
* Return : 1 if OK, 0 if error
*/
int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize)
{
LZ4_streamDecode_t_internal* lz4sd = &LZ4_streamDecode->internal_donotuse;
lz4sd->prefixSize = (size_t) dictSize;
lz4sd->prefixEnd = (const BYTE*) dictionary + dictSize;
lz4sd->externalDict = NULL;
lz4sd->extDictSize = 0;
return 1;
}
/*
*_continue() :
These decoding functions allow decompression of multiple blocks in "streaming" mode.
Previously decoded blocks must still be available at the memory position where they were decoded.
If it's not possible, save the relevant part of decoded data into a safe buffer,
and indicate where it stands using LZ4_setStreamDecode()
*/
int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int compressedSize, int maxOutputSize)
{
LZ4_streamDecode_t_internal* lz4sd = &LZ4_streamDecode->internal_donotuse;
int result;
if (lz4sd->prefixEnd == (BYTE*)dest) {
result = LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize,
endOnInputSize, full, 0,
usingExtDict, lz4sd->prefixEnd - lz4sd->prefixSize, lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize += result;
lz4sd->prefixEnd += result;
} else {
lz4sd->extDictSize = lz4sd->prefixSize;
lz4sd->externalDict = lz4sd->prefixEnd - lz4sd->extDictSize;
result = LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize,
endOnInputSize, full, 0,
usingExtDict, (BYTE*)dest, lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize = result;
lz4sd->prefixEnd = (BYTE*)dest + result;
}
return result;
}
int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int originalSize)
{
LZ4_streamDecode_t_internal* lz4sd = &LZ4_streamDecode->internal_donotuse;
int result;
if (lz4sd->prefixEnd == (BYTE*)dest) {
result = LZ4_decompress_generic(source, dest, 0, originalSize,
endOnOutputSize, full, 0,
usingExtDict, lz4sd->prefixEnd - lz4sd->prefixSize, lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize += originalSize;
lz4sd->prefixEnd += originalSize;
} else {
lz4sd->extDictSize = lz4sd->prefixSize;
lz4sd->externalDict = lz4sd->prefixEnd - lz4sd->extDictSize;
result = LZ4_decompress_generic(source, dest, 0, originalSize,
endOnOutputSize, full, 0,
usingExtDict, (BYTE*)dest, lz4sd->externalDict, lz4sd->extDictSize);
if (result <= 0) return result;
lz4sd->prefixSize = originalSize;
lz4sd->prefixEnd = (BYTE*)dest + originalSize;
}
return result;
}
/*
Advanced decoding functions :
*_usingDict() :
These decoding functions work the same as "_continue" ones,
the dictionary must be explicitly provided within parameters
*/
FORCE_INLINE int LZ4_decompress_usingDict_generic(const char* source, char* dest, int compressedSize, int maxOutputSize, int safe, const char* dictStart, int dictSize)
{
if (dictSize==0)
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, noDict, (BYTE*)dest, NULL, 0);
if (dictStart+dictSize == dest) {
if (dictSize >= (int)(64 KB - 1))
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, withPrefix64k, (BYTE*)dest-64 KB, NULL, 0);
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, noDict, (BYTE*)dest-dictSize, NULL, 0);
}
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, usingExtDict, (BYTE*)dest, (const BYTE*)dictStart, dictSize);
}
int LZ4_decompress_safe_usingDict(const char* source, char* dest, int compressedSize, int maxOutputSize, const char* dictStart, int dictSize)
{
return LZ4_decompress_usingDict_generic(source, dest, compressedSize, maxOutputSize, 1, dictStart, dictSize);
}
int LZ4_decompress_fast_usingDict(const char* source, char* dest, int originalSize, const char* dictStart, int dictSize)
{
return LZ4_decompress_usingDict_generic(source, dest, 0, originalSize, 0, dictStart, dictSize);
}
/* debug function */
int LZ4_decompress_safe_forceExtDict(const char* source, char* dest, int compressedSize, int maxOutputSize, const char* dictStart, int dictSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, endOnInputSize, full, 0, usingExtDict, (BYTE*)dest, (const BYTE*)dictStart, dictSize);
}
/*=*************************************************
* Obsolete Functions
***************************************************/
/* obsolete compression functions */
int LZ4_compress_limitedOutput(const char* source, char* dest, int inputSize, int maxOutputSize) { return LZ4_compress_default(source, dest, inputSize, maxOutputSize); }
int LZ4_compress(const char* source, char* dest, int inputSize) { return LZ4_compress_default(source, dest, inputSize, LZ4_compressBound(inputSize)); }
int LZ4_compress_limitedOutput_withState (void* state, const char* src, char* dst, int srcSize, int dstSize) { return LZ4_compress_fast_extState(state, src, dst, srcSize, dstSize, 1); }
int LZ4_compress_withState (void* state, const char* src, char* dst, int srcSize) { return LZ4_compress_fast_extState(state, src, dst, srcSize, LZ4_compressBound(srcSize), 1); }
int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_stream, const char* src, char* dst, int srcSize, int maxDstSize) { return LZ4_compress_fast_continue(LZ4_stream, src, dst, srcSize, maxDstSize, 1); }
int LZ4_compress_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize) { return LZ4_compress_fast_continue(LZ4_stream, source, dest, inputSize, LZ4_compressBound(inputSize), 1); }
/*
These function names are deprecated and should no longer be used.
They are only provided here for compatibility with older user programs.
- LZ4_uncompress is totally equivalent to LZ4_decompress_fast
- LZ4_uncompress_unknownOutputSize is totally equivalent to LZ4_decompress_safe
*/
int LZ4_uncompress (const char* source, char* dest, int outputSize) { return LZ4_decompress_fast(source, dest, outputSize); }
int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize) { return LZ4_decompress_safe(source, dest, isize, maxOutputSize); }
/* Obsolete Streaming functions */
int LZ4_sizeofStreamState() { return LZ4_STREAMSIZE; }
static void LZ4_init(LZ4_stream_t* lz4ds, BYTE* base)
{
MEM_INIT(lz4ds, 0, sizeof(LZ4_stream_t));
lz4ds->internal_donotuse.bufferStart = base;
}
int LZ4_resetStreamState(void* state, char* inputBuffer)
{
if ((((uptrval)state) & 3) != 0) return 1; /* Error : pointer is not aligned on 4-bytes boundary */
LZ4_init((LZ4_stream_t*)state, (BYTE*)inputBuffer);
return 0;
}
void* LZ4_create (char* inputBuffer)
{
LZ4_stream_t* lz4ds = (LZ4_stream_t*)ALLOCATOR(8, sizeof(LZ4_stream_t));
LZ4_init (lz4ds, (BYTE*)inputBuffer);
return lz4ds;
}
char* LZ4_slideInputBuffer (void* LZ4_Data)
{
LZ4_stream_t_internal* ctx = &((LZ4_stream_t*)LZ4_Data)->internal_donotuse;
int dictSize = LZ4_saveDict((LZ4_stream_t*)LZ4_Data, (char*)ctx->bufferStart, 64 KB);
return (char*)(ctx->bufferStart + dictSize);
}
/* Obsolete streaming decompression functions */
int LZ4_decompress_safe_withPrefix64k(const char* source, char* dest, int compressedSize, int maxOutputSize)
{
return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, endOnInputSize, full, 0, withPrefix64k, (BYTE*)dest - 64 KB, NULL, 64 KB);
}
int LZ4_decompress_fast_withPrefix64k(const char* source, char* dest, int originalSize)
{
return LZ4_decompress_generic(source, dest, 0, originalSize, endOnOutputSize, full, 0, withPrefix64k, (BYTE*)dest - 64 KB, NULL, 64 KB);
}
#endif /* LZ4_COMMONDEFS_ONLY */
#endif /* NEED_COMPAT_LZ4 */
src/compat/compat-lz4.h deleted 100644 → 0
View file @ e3856827
/*
* LZ4 - Fast LZ compression algorithm
* Header File
* Copyright (C) 2011-2016, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- LZ4 homepage : http://www.lz4.org
- LZ4 source repository : https://github.com/lz4/lz4
*/
#ifndef LZ4_H_2983827168210
#define LZ4_H_2983827168210
#if defined (__cplusplus)
extern "C" {
#endif
/* --- Dependency --- */
#include <stddef.h> /* size_t */
/**
Introduction
LZ4 is lossless compression algorithm, providing compression speed at 400 MB/s per core,
scalable with multi-cores CPU. It features an extremely fast decoder, with speed in
multiple GB/s per core, typically reaching RAM speed limits on multi-core systems.
The LZ4 compression library provides in-memory compression and decompression functions.
Compression can be done in:
- a single step (described as Simple Functions)
- a single step, reusing a context (described in Advanced Functions)
- unbounded multiple steps (described as Streaming compression)
lz4.h provides block compression functions. It gives full buffer control to user.
Decompressing an lz4-compressed block also requires metadata (such as compressed size).
Each application is free to encode such metadata in whichever way it wants.
An additional format, called LZ4 frame specification (doc/lz4_Frame_format.md),
take care of encoding standard metadata alongside LZ4-compressed blocks.
If your application requires interoperability, it's recommended to use it.
A library is provided to take care of it, see lz4frame.h.
*/
/*^***************************************************************
* Export parameters
*****************************************************************/
/*
* LZ4_DLL_EXPORT :
* Enable exporting of functions when building a Windows DLL
*/
#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1)
# define LZ4LIB_API __declspec(dllexport)
#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)
# define LZ4LIB_API __declspec(dllimport) /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/
#else
# define LZ4LIB_API
#endif
/*========== Version =========== */
#define LZ4_VERSION_MAJOR 1 /* for breaking interface changes */
#define LZ4_VERSION_MINOR 7 /* for new (non-breaking) interface capabilities */
#define LZ4_VERSION_RELEASE 5 /* for tweaks, bug-fixes, or development */
#define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR *100*100 + LZ4_VERSION_MINOR *100 + LZ4_VERSION_RELEASE)
#define LZ4_LIB_VERSION LZ4_VERSION_MAJOR.LZ4_VERSION_MINOR.LZ4_VERSION_RELEASE
#define LZ4_QUOTE(str) #str
#define LZ4_EXPAND_AND_QUOTE(str) LZ4_QUOTE(str)
#define LZ4_VERSION_STRING LZ4_EXPAND_AND_QUOTE(LZ4_LIB_VERSION)
LZ4LIB_API int LZ4_versionNumber (void);
LZ4LIB_API const char* LZ4_versionString (void);
/*-************************************
* Tuning parameter
**************************************/
/*!
* LZ4_MEMORY_USAGE :
* Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; etc.)
* Increasing memory usage improves compression ratio
* Reduced memory usage can improve speed, due to cache effect
* Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache
*/
#define LZ4_MEMORY_USAGE 14
/*-************************************
* Simple Functions
**************************************/
/*! LZ4_compress_default() :
Compresses 'sourceSize' bytes from buffer 'source'
into already allocated 'dest' buffer of size 'maxDestSize'.
Compression is guaranteed to succeed if 'maxDestSize' >= LZ4_compressBound(sourceSize).
It also runs faster, so it's a recommended setting.
If the function cannot compress 'source' into a more limited 'dest' budget,
compression stops *immediately*, and the function result is zero.
As a consequence, 'dest' content is not valid.
This function never writes outside 'dest' buffer, nor read outside 'source' buffer.
sourceSize : Max supported value is LZ4_MAX_INPUT_VALUE
maxDestSize : full or partial size of buffer 'dest' (which must be already allocated)
return : the number of bytes written into buffer 'dest' (necessarily <= maxOutputSize)
or 0 if compression fails */
LZ4LIB_API int LZ4_compress_default(const char* source, char* dest, int sourceSize, int maxDestSize);
/*! LZ4_decompress_safe() :
compressedSize : is the precise full size of the compressed block.
maxDecompressedSize : is the size of destination buffer, which must be already allocated.
return : the number of bytes decompressed into destination buffer (necessarily <= maxDecompressedSize)
If destination buffer is not large enough, decoding will stop and output an error code (<0).
If the source stream is detected malformed, the function will stop decoding and return a negative result.
This function is protected against buffer overflow exploits, including malicious data packets.
It never writes outside output buffer, nor reads outside input buffer.
*/
LZ4LIB_API int LZ4_decompress_safe (const char* source, char* dest, int compressedSize, int maxDecompressedSize);
/*-************************************
* Advanced Functions
**************************************/
#define LZ4_MAX_INPUT_SIZE 0x7E000000 /* 2 113 929 216 bytes */
#define LZ4_COMPRESSBOUND(isize) ((unsigned)(isize) > (unsigned)LZ4_MAX_INPUT_SIZE ? 0 : (isize) + ((isize)/255) + 16)
/*!
LZ4_compressBound() :
Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible)
This function is primarily useful for memory allocation purposes (destination buffer size).
Macro LZ4_COMPRESSBOUND() is also provided for compilation-time evaluation (stack memory allocation for example).
Note that LZ4_compress_default() compress faster when dest buffer size is >= LZ4_compressBound(srcSize)
inputSize : max supported value is LZ4_MAX_INPUT_SIZE
return : maximum output size in a "worst case" scenario
or 0, if input size is too large ( > LZ4_MAX_INPUT_SIZE)
*/
LZ4LIB_API int LZ4_compressBound(int inputSize);
/*!
LZ4_compress_fast() :
Same as LZ4_compress_default(), but allows to select an "acceleration" factor.
The larger the acceleration value, the faster the algorithm, but also the lesser the compression.
It's a trade-off. It can be fine tuned, with each successive value providing roughly +~3% to speed.
An acceleration value of "1" is the same as regular LZ4_compress_default()
Values <= 0 will be replaced by ACCELERATION_DEFAULT (see lz4.c), which is 1.
*/
LZ4LIB_API int LZ4_compress_fast (const char* source, char* dest, int sourceSize, int maxDestSize, int acceleration);
/*!
LZ4_compress_fast_extState() :
Same compression function, just using an externally allocated memory space to store compression state.
Use LZ4_sizeofState() to know how much memory must be allocated,
and allocate it on 8-bytes boundaries (using malloc() typically).
Then, provide it as 'void* state' to compression function.
*/
LZ4LIB_API int LZ4_sizeofState(void);
LZ4LIB_API int LZ4_compress_fast_extState (void* state, const char* source, char* dest, int inputSize, int maxDestSize, int acceleration);
/*!
LZ4_compress_destSize() :
Reverse the logic, by compressing as much data as possible from 'source' buffer
into already allocated buffer 'dest' of size 'targetDestSize'.
This function either compresses the entire 'source' content into 'dest' if it's large enough,
or fill 'dest' buffer completely with as much data as possible from 'source'.
*sourceSizePtr : will be modified to indicate how many bytes where read from 'source' to fill 'dest'.
New value is necessarily <= old value.
return : Nb bytes written into 'dest' (necessarily <= targetDestSize)
or 0 if compression fails
*/
LZ4LIB_API int LZ4_compress_destSize (const char* source, char* dest, int* sourceSizePtr, int targetDestSize);
/*!
LZ4_decompress_fast() :
originalSize : is the original and therefore uncompressed size
return : the number of bytes read from the source buffer (in other words, the compressed size)
If the source stream is detected malformed, the function will stop decoding and return a negative result.
Destination buffer must be already allocated. Its size must be a minimum of 'originalSize' bytes.
note : This function fully respect memory boundaries for properly formed compressed data.
It is a bit faster than LZ4_decompress_safe().
However, it does not provide any protection against intentionally modified data stream (malicious input).
Use this function in trusted environment only (data to decode comes from a trusted source).
*/
LZ4LIB_API int LZ4_decompress_fast (const char* source, char* dest, int originalSize);
/*!
LZ4_decompress_safe_partial() :
This function decompress a compressed block of size 'compressedSize' at position 'source'
into destination buffer 'dest' of size 'maxDecompressedSize'.
The function tries to stop decompressing operation as soon as 'targetOutputSize' has been reached,
reducing decompression time.
return : the number of bytes decoded in the destination buffer (necessarily <= maxDecompressedSize)
Note : this number can be < 'targetOutputSize' should the compressed block to decode be smaller.
Always control how many bytes were decoded.
If the source stream is detected malformed, the function will stop decoding and return a negative result.
This function never writes outside of output buffer, and never reads outside of input buffer. It is therefore protected against malicious data packets
*/
LZ4LIB_API int LZ4_decompress_safe_partial (const char* source, char* dest, int compressedSize, int targetOutputSize, int maxDecompressedSize);
/*-*********************************************
* Streaming Compression Functions
***********************************************/
typedef union LZ4_stream_u LZ4_stream_t; /* incomplete type (defined later) */
/*! LZ4_createStream() and LZ4_freeStream() :
* LZ4_createStream() will allocate and initialize an `LZ4_stream_t` structure.
* LZ4_freeStream() releases its memory.
*/
LZ4LIB_API LZ4_stream_t* LZ4_createStream(void);
LZ4LIB_API int LZ4_freeStream (LZ4_stream_t* streamPtr);
/*! LZ4_resetStream() :
* An LZ4_stream_t structure can be allocated once and re-used multiple times.
* Use this function to init an allocated `LZ4_stream_t` structure and start a new compression.
*/
LZ4LIB_API void LZ4_resetStream (LZ4_stream_t* streamPtr);
/*! LZ4_loadDict() :
* Use this function to load a static dictionary into LZ4_stream.
* Any previous data will be forgotten, only 'dictionary' will remain in memory.
* Loading a size of 0 is allowed.
* Return : dictionary size, in bytes (necessarily <= 64 KB)
*/
LZ4LIB_API int LZ4_loadDict (LZ4_stream_t* streamPtr, const char* dictionary, int dictSize);
/*! LZ4_compress_fast_continue() :
* Compress buffer content 'src', using data from previously compressed blocks as dictionary to improve compression ratio.
* Important : Previous data blocks are assumed to still be present and unmodified !
* 'dst' buffer must be already allocated.
* If maxDstSize >= LZ4_compressBound(srcSize), compression is guaranteed to succeed, and runs faster.
* If not, and if compressed data cannot fit into 'dst' buffer size, compression stops, and function returns a zero.
*/
LZ4LIB_API int LZ4_compress_fast_continue (LZ4_stream_t* streamPtr, const char* src, char* dst, int srcSize, int maxDstSize, int acceleration);
/*! LZ4_saveDict() :
* If previously compressed data block is not guaranteed to remain available at its memory location,
* save it into a safer place (char* safeBuffer).
* Note : you don't need to call LZ4_loadDict() afterwards,
* dictionary is immediately usable, you can therefore call LZ4_compress_fast_continue().
* Return : saved dictionary size in bytes (necessarily <= dictSize), or 0 if error.
*/
LZ4LIB_API int LZ4_saveDict (LZ4_stream_t* streamPtr, char* safeBuffer, int dictSize);
/*-**********************************************
* Streaming Decompression Functions
* Bufferless synchronous API
************************************************/
typedef union LZ4_streamDecode_u LZ4_streamDecode_t; /* incomplete type (defined later) */
/* creation / destruction of streaming decompression tracking structure */
LZ4LIB_API LZ4_streamDecode_t* LZ4_createStreamDecode(void);
LZ4LIB_API int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream);
/*! LZ4_setStreamDecode() :
* Use this function to instruct where to find the dictionary.
* Setting a size of 0 is allowed (same effect as reset).
* @return : 1 if OK, 0 if error
*/
LZ4LIB_API int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize);
/*!
LZ4_decompress_*_continue() :
These decoding functions allow decompression of multiple blocks in "streaming" mode.
Previously decoded blocks *must* remain available at the memory position where they were decoded (up to 64 KB)
In the case of a ring buffers, decoding buffer must be either :
- Exactly same size as encoding buffer, with same update rule (block boundaries at same positions)
In which case, the decoding & encoding ring buffer can have any size, including very small ones ( < 64 KB).
- Larger than encoding buffer, by a minimum of maxBlockSize more bytes.
maxBlockSize is implementation dependent. It's the maximum size you intend to compress into a single block.
In which case, encoding and decoding buffers do not need to be synchronized,
and encoding ring buffer can have any size, including small ones ( < 64 KB).
- _At least_ 64 KB + 8 bytes + maxBlockSize.
In which case, encoding and decoding buffers do not need to be synchronized,
and encoding ring buffer can have any size, including larger than decoding buffer.
Whenever these conditions are not possible, save the last 64KB of decoded data into a safe buffer,
and indicate where it is saved using LZ4_setStreamDecode()
*/
LZ4LIB_API int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int compressedSize, int maxDecompressedSize);
LZ4LIB_API int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int originalSize);
/*! LZ4_decompress_*_usingDict() :
* These decoding functions work the same as
* a combination of LZ4_setStreamDecode() followed by LZ4_decompress_*_continue()
* They are stand-alone, and don't need an LZ4_streamDecode_t structure.
*/
LZ4LIB_API int LZ4_decompress_safe_usingDict (const char* source, char* dest, int compressedSize, int maxDecompressedSize, const char* dictStart, int dictSize);
LZ4LIB_API int LZ4_decompress_fast_usingDict (const char* source, char* dest, int originalSize, const char* dictStart, int dictSize);
/*^**********************************************
* !!!!!! STATIC LINKING ONLY !!!!!!
***********************************************/
/*-************************************
* Private definitions
**************************************
* Do not use these definitions.
* They are exposed to allow static allocation of `LZ4_stream_t` and `LZ4_streamDecode_t`.
* Using these definitions will expose code to API and/or ABI break in future versions of the library.
**************************************/
#define LZ4_HASHLOG (LZ4_MEMORY_USAGE-2)
#define LZ4_HASHTABLESIZE (1 << LZ4_MEMORY_USAGE)
#define LZ4_HASH_SIZE_U32 (1 << LZ4_HASHLOG) /* required as macro for static allocation */
#if defined(__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
#include <stdint.h>
typedef struct {
uint32_t hashTable[LZ4_HASH_SIZE_U32];
uint32_t currentOffset;
uint32_t initCheck;
const uint8_t* dictionary;
uint8_t* bufferStart; /* obsolete, used for slideInputBuffer */
uint32_t dictSize;
} LZ4_stream_t_internal;
typedef struct {
const uint8_t* externalDict;
size_t extDictSize;
const uint8_t* prefixEnd;
size_t prefixSize;
} LZ4_streamDecode_t_internal;
#else
typedef struct {
unsigned int hashTable[LZ4_HASH_SIZE_U32];
unsigned int currentOffset;
unsigned int initCheck;
const unsigned char* dictionary;
unsigned char* bufferStart; /* obsolete, used for slideInputBuffer */
unsigned int dictSize;
} LZ4_stream_t_internal;
typedef struct {
const unsigned char* externalDict;
size_t extDictSize;
const unsigned char* prefixEnd;
size_t prefixSize;
} LZ4_streamDecode_t_internal;
#endif
/*!
* LZ4_stream_t :
* information structure to track an LZ4 stream.
* init this structure before first use.
* note : only use in association with static linking !
* this definition is not API/ABI safe,
* and may change in a future version !
*/
#define LZ4_STREAMSIZE_U64 ((1 << (LZ4_MEMORY_USAGE-3)) + 4)
#define LZ4_STREAMSIZE (LZ4_STREAMSIZE_U64 * sizeof(unsigned long long))
union LZ4_stream_u {
unsigned long long table[LZ4_STREAMSIZE_U64];
LZ4_stream_t_internal internal_donotuse;
} ; /* previously typedef'd to LZ4_stream_t */
/*!
* LZ4_streamDecode_t :
* information structure to track an LZ4 stream during decompression.
* init this structure using LZ4_setStreamDecode (or memset()) before first use
* note : only use in association with static linking !
* this definition is not API/ABI safe,
* and may change in a future version !
*/
#define LZ4_STREAMDECODESIZE_U64 4
#define LZ4_STREAMDECODESIZE (LZ4_STREAMDECODESIZE_U64 * sizeof(unsigned long long))
union LZ4_streamDecode_u {
unsigned long long table[LZ4_STREAMDECODESIZE_U64];
LZ4_streamDecode_t_internal internal_donotuse;
} ; /* previously typedef'd to LZ4_streamDecode_t */
/*=************************************
* Obsolete Functions
**************************************/
/* Deprecation warnings */
/* Should these warnings be a problem,
it is generally possible to disable them,
typically with -Wno-deprecated-declarations for gcc
or _CRT_SECURE_NO_WARNINGS in Visual.
Otherwise, it's also possible to define LZ4_DISABLE_DEPRECATE_WARNINGS */
#ifdef LZ4_DISABLE_DEPRECATE_WARNINGS
# define LZ4_DEPRECATED(message) /* disable deprecation warnings */
#else
# define LZ4_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
# if defined (__cplusplus) && (__cplusplus >= 201402) /* C++14 or greater */
# define LZ4_DEPRECATED(message) [[deprecated(message)]]
# elif (LZ4_GCC_VERSION >= 405) || defined(__clang__)
# define LZ4_DEPRECATED(message) __attribute__((deprecated(message)))
# elif (LZ4_GCC_VERSION >= 301)
# define LZ4_DEPRECATED(message) __attribute__((deprecated))
# elif defined(_MSC_VER)
# define LZ4_DEPRECATED(message) __declspec(deprecated(message))
# else
# pragma message("WARNING: You need to implement LZ4_DEPRECATED for this compiler")
# define LZ4_DEPRECATED(message)
# endif
#endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */
/* Obsolete compression functions */
LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress (const char* source, char* dest, int sourceSize);
LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress_limitedOutput (const char* source, char* dest, int sourceSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
/* Obsolete decompression functions */
/* These function names are completely deprecated and must no longer be used.
They are only provided in lz4.c for compatibility with older programs.
- LZ4_uncompress is the same as LZ4_decompress_fast
- LZ4_uncompress_unknownOutputSize is the same as LZ4_decompress_safe
These function prototypes are now disabled; uncomment them only if you really need them.
It is highly recommended to stop using these prototypes and migrate to maintained ones */
/* int LZ4_uncompress (const char* source, char* dest, int outputSize); */
/* int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); */
/* Obsolete streaming functions; use new streaming interface whenever possible */
LZ4_DEPRECATED("use LZ4_createStream() instead") void* LZ4_create (char* inputBuffer);
LZ4_DEPRECATED("use LZ4_createStream() instead") int LZ4_sizeofStreamState(void);
LZ4_DEPRECATED("use LZ4_resetStream() instead") int LZ4_resetStreamState(void* state, char* inputBuffer);
LZ4_DEPRECATED("use LZ4_saveDict() instead") char* LZ4_slideInputBuffer (void* state);
/* Obsolete streaming decoding functions */
LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize);
LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize);
#if defined (__cplusplus)
}
#endif
#endif /* LZ4_H_2983827168210 */
src/compat/compat-inet_ntop.c → src/compat/compat-strsep.c
View file @ e1e1377b
......@@ -5,7 +5,8 @@
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2011 - David Sommerseth <davids@redhat.com>
* Copyright (C) 2019-2022 Arne Schwabe <arne@rfc2549.org>
* Copyright (C) 1992-2019 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
......@@ -27,52 +28,34 @@
#include "config-msvc.h"
#endif
#ifndef HAVE_INET_NTOP
#include "compat.h"
#ifdef _WIN32
#include <windows.h>
#ifndef HAVE_STRSEP
#include <string.h>
/*
* inet_ntop() and inet_pton() wrap-implementations using
* WSAAddressToString() and WSAStringToAddress() functions
*
* this is needed as long as we support running OpenVPN on WinXP
* Modified version based on the glibc
*/
const char *
inet_ntop(int af, const void *src, char *dst, socklen_t size)
char *
strsep(char **stringp, const char *delim)
{
struct sockaddr_storage ss;
unsigned long s = size;
ZeroMemory(&ss, sizeof(ss));
ss.ss_family = af;
switch (af)
char *begin, *end;
begin = *stringp;
if (begin == NULL)
{
case AF_INET:
((struct sockaddr_in *)&ss)->sin_addr = *(struct in_addr *)src;
break;
case AF_INET6:
((struct sockaddr_in6 *)&ss)->sin6_addr = *(struct in6_addr *)src;
break;
default:
return NULL;
return NULL;
}
/* cannot direclty use &size because of strict aliasing rules */
return (WSAAddressToString((struct sockaddr *)&ss, sizeof(ss), NULL, dst, &s) == 0) ?
dst : NULL;
/* Find the end of the token. */
end = begin + strcspn(begin, delim);
if (*end)
{
/* Terminate the token and set *STRINGP past NUL character. */
*end++ = '\0';
*stringp = end;
}
else
{
/* No more delimiters; this is the last token. */
*stringp = NULL;
}
return begin;
}
#else /* ifdef _WIN32 */
#error no emulation for inet_ntop
#endif /* ifdef _WIN32 */
#endif /* ifndef HAVE_INET_NTOP */
#endif /* ifndef HAVE_STRSEP */
src/compat/compat-versionhelpers.h
View file @ e1e1377b
......@@ -18,6 +18,10 @@
#define _WIN32_WINNT_WINBLUE 0x0603
#ifndef _WIN32_WINNT_WINTHRESHOLD
#define _WIN32_WINNT_WINTHRESHOLD 0x0A00 /* Windows 10 */
#endif
VERSIONHELPERAPI
IsWindowsVersionOrGreater(WORD major, WORD minor, WORD servpack)
{
......@@ -95,6 +99,12 @@ IsWindows8Point1OrGreater(void)
return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINBLUE), LOBYTE(_WIN32_WINNT_WINBLUE), 0);
}
VERSIONHELPERAPI
IsWindows10OrGreater()
{
return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINTHRESHOLD), LOBYTE(_WIN32_WINNT_WINTHRESHOLD), 0);
}
VERSIONHELPERAPI
IsWindowsServer(void)
{
......
src/compat/compat.h
View file @ e1e1377b
......@@ -24,11 +24,8 @@
#ifndef COMPAT_H
#define COMPAT_H
#ifdef HAVE_WINSOCK2_H
#ifdef _WIN32
#include <winsock2.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
......@@ -60,14 +57,17 @@ int daemon(int nochdir, int noclose);
#endif
#ifndef HAVE_INET_NTOP
const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
#ifndef HAVE_STRSEP
char *strsep(char **stringp, const char *delim);
#endif
#ifndef HAVE_INET_PTON
int inet_pton(int af, const char *src, void *dst);
#if defined(__MINGW32__) && !defined(__MINGW64__)
BOOL dco_get_overlapped_result(HANDLE handle, OVERLAPPED *ov, DWORD *transferred,
DWORD delay_millisec, BOOL unused);
#else
#define dco_get_overlapped_result GetOverlappedResultEx
#endif
#endif /* COMPAT_H */
src/compat/compat.vcxproj
View file @ e1e1377b
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src/compat/compat.vcxproj.filters
View file @ e1e1377b
......@@ -24,16 +24,13 @@
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<Filter>Source Files</Filter>
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<Filter>Source Files</Filter>
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<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
......
src/openvpn/Makefile.am
View file @ e1e1377b
......@@ -5,7 +5,7 @@
# packet encryption, packet authentication, and
# packet compression.
#
# Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
# Copyright (C) 2002-2022 OpenVPN Inc <sales@openvpn.net>
# Copyright (C) 2006-2012 Alon Bar-Lev <alon.barlev@gmail.com>
#
......@@ -16,7 +16,8 @@ MAINTAINERCLEANFILES = \
EXTRA_DIST = \
openvpn.vcxproj \
openvpn.vcxproj.filters
openvpn.vcxproj.filters \
openvpn.manifest
AM_CPPFLAGS = \
-I$(top_srcdir)/include \
......@@ -40,6 +41,7 @@ sbin_PROGRAMS = openvpn
openvpn_SOURCES = \
argv.c argv.h \
auth_token.c auth_token.h \
base64.c base64.h \
basic.h \
buffer.c buffer.h \
......@@ -51,12 +53,17 @@ openvpn_SOURCES = \
crypto.c crypto.h crypto_backend.h \
crypto_openssl.c crypto_openssl.h \
crypto_mbedtls.c crypto_mbedtls.h \
dco.c dco.h dco_internal.h \
dco_linux.c dco_linux.h \
dco_win.c dco_win.h \
dhcp.c dhcp.h \
dns.c dns.h \
env_set.c env_set.h \
errlevel.h \
error.c error.h \
event.c event.h \
fdmisc.c fdmisc.h \
forward.c forward.h forward-inline.h \
forward.c forward.h \
fragment.c fragment.h \
gremlin.c gremlin.h \
helper.c helper.h \
......@@ -80,8 +87,11 @@ openvpn_SOURCES = \
mtu.c mtu.h \
mudp.c mudp.h \
multi.c multi.h \
networking_iproute2.c networking_iproute2.h \
networking_sitnl.c networking_sitnl.h \
networking.h \
ntlm.c ntlm.h \
occ.c occ.h occ-inline.h \
occ.c occ.h \
openssl_compat.h \
pkcs11.c pkcs11.h pkcs11_backend.h \
pkcs11_openssl.c \
......@@ -91,8 +101,7 @@ openvpn_SOURCES = \
otime.c otime.h \
packet_id.c packet_id.h \
perf.c perf.h \
pf.c pf.h pf-inline.h \
ping.c ping.h ping-inline.h \
ping.c ping.h \
plugin.c plugin.h \
pool.c pool.h \
proto.c proto.h \
......@@ -102,6 +111,7 @@ openvpn_SOURCES = \
pushlist.h \
reliable.c reliable.h \
route.c route.h \
run_command.c run_command.h \
schedule.c schedule.h \
session_id.c session_id.h \
shaper.c shaper.h \
......@@ -111,6 +121,9 @@ openvpn_SOURCES = \
ssl.c ssl.h ssl_backend.h \
ssl_openssl.c ssl_openssl.h \
ssl_mbedtls.c ssl_mbedtls.h \
ssl_ncp.c ssl_ncp.h \
ssl_pkt.c ssl_pkt.h \
ssl_util.c ssl_util.h \
ssl_common.h \
ssl_verify.c ssl_verify.h ssl_verify_backend.h \
ssl_verify_openssl.c ssl_verify_openssl.h \
......@@ -119,7 +132,11 @@ openvpn_SOURCES = \
syshead.h \
tls_crypt.c tls_crypt.h \
tun.c tun.h \
vlan.c vlan.h \
xkey_provider.c xkey_common.h \
xkey_helper.c \
win32.h win32.c \
win32-util.h win32-util.c \
cryptoapi.h cryptoapi.c
openvpn_LDADD = \
$(top_builddir)/src/compat/libcompat.la \
......@@ -133,6 +150,6 @@ openvpn_LDADD = \
$(OPTIONAL_DL_LIBS) \
$(OPTIONAL_INOTIFY_LIBS)
if WIN32
openvpn_SOURCES += openvpn_win32_resources.rc block_dns.c block_dns.h
openvpn_LDADD += -lgdi32 -lws2_32 -lwininet -lcrypt32 -liphlpapi -lwinmm -lfwpuclnt -lrpcrt4 -lncrypt
openvpn_SOURCES += openvpn_win32_resources.rc block_dns.c block_dns.h ring_buffer.h
openvpn_LDADD += -lgdi32 -lws2_32 -lwininet -lcrypt32 -liphlpapi -lwinmm -lfwpuclnt -lrpcrt4 -lncrypt -lsetupapi -lbcrypt
endif
src/openvpn/Makefile.in deleted 100644 → 0
View file @ e3856827
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.PRECIOUS: Makefile
.rc.lo:
$(LTRCCOMPILE) -i "$<" -o "$@"
.rc.o:
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.mc.rc:
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# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:
src/openvpn/argv.c
View file @ e1e1377b
......@@ -5,7 +5,7 @@
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
* Copyright (C) 2002-2022 OpenVPN Inc <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
......@@ -37,16 +37,55 @@
#include "argv.h"
#include "integer.h"
#include "env_set.h"
#include "options.h"
/**
* Resizes the list of arguments struct argv can carry. This resize
* operation will only increase the size, never decrease the size.
*
* @param *a Valid pointer to a struct argv to resize
* @param newcap size_t with the new size of the argument list.
*/
static void
argv_extend(struct argv *a, const size_t newcap)
{
if (newcap > a->capacity)
{
char **newargv;
size_t i;
ALLOC_ARRAY_CLEAR_GC(newargv, char *, newcap, &a->gc);
for (i = 0; i < a->argc; ++i)
{
newargv[i] = a->argv[i];
}
a->argv = newargv;
a->capacity = newcap;
}
}
/**
* Initialise an already allocated struct argv.
* It is expected that the input argument is a valid pointer.
*
* @param *a Pointer to a struct argv to initialise
*/
static void
argv_init(struct argv *a)
{
a->capacity = 0;
a->argc = 0;
a->argv = NULL;
a->gc = gc_new();
argv_extend(a, 8);
}
/**
* Allocates a new struct argv and ensures it is initialised.
* Note that it does not return a pointer, but a struct argv directly.
*
* @returns Returns an initialised and empty struct argv.
*/
struct argv
argv_new(void)
{
......@@ -55,36 +94,51 @@ argv_new(void)
return ret;
}
/**
* Frees all memory allocations allocated by the struct argv
* related functions.
*
* @param *a Valid pointer to a struct argv to release memory from
*/
void
argv_reset(struct argv *a)
argv_free(struct argv *a)
{
size_t i;
for (i = 0; i < a->argc; ++i)
{
free(a->argv[i]);
}
free(a->argv);
argv_init(a);
gc_free(&a->gc);
}
/**
* Resets the struct argv to an initial state. No memory buffers
* will be released by this call.
*
* @param *a Valid pointer to a struct argv to resize
*/
static void
argv_extend(struct argv *a, const size_t newcap)
argv_reset(struct argv *a)
{
if (newcap > a->capacity)
if (a->argc)
{
char **newargv;
size_t i;
ALLOC_ARRAY_CLEAR(newargv, char *, newcap);
for (i = 0; i < a->argc; ++i)
{
newargv[i] = a->argv[i];
a->argv[i] = NULL;
}
free(a->argv);
a->argv = newargv;
a->capacity = newcap;
a->argc = 0;
}
}
/**
* Extends an existing struct argv to carry minimum 'add' number
* of new arguments. This builds on argv_extend(), which ensures the
* new size will only be higher than the current capacity.
*
* The new size is also calculated based on the result of adjust_power_of_2().
* This approach ensures that the list does grow bulks and only when the
* current limit is reached.
*
* @param *a Valid pointer to the struct argv to extend
* @param add size_t with the number of elements to add.
*
*/
static void
argv_grow(struct argv *a, const size_t add)
{
......@@ -93,114 +147,100 @@ argv_grow(struct argv *a, const size_t add)
argv_extend(a, adjust_power_of_2(newargc));
}
/**
* Appends a string to to the list of arguments stored in a struct argv
* This will ensure the list size in struct argv has the needed capacity to
* store the value.
*
* @param *a struct argv where to append the new string value
* @param *str Pointer to string to append. The provided string *MUST* have
* been malloc()ed or NULL.
*/
static void
argv_append(struct argv *a, char *str) /* str must have been malloced or be NULL */
argv_append(struct argv *a, char *str)
{
argv_grow(a, 1);
a->argv[a->argc++] = str;
}
/**
* Clones a struct argv with all the contents to a new allocated struct argv.
* If 'headroom' is larger than 0, it will create a head-room in front of the
* values being copied from the source input.
*
*
* @param *source Valid pointer to the source struct argv to clone. It may
* be NULL.
* @param headroom Number of slots to leave empty in front of the slots
* copied from the source.
*
* @returns Returns a new struct argv containing a copy of the source
* struct argv, with the given headroom in front of the copy.
*
*/
static struct argv
argv_clone(const struct argv *a, const size_t headroom)
argv_clone(const struct argv *source, const size_t headroom)
{
struct argv r;
size_t i;
argv_init(&r);
for (i = 0; i < headroom; ++i)
for (size_t i = 0; i < headroom; ++i)
{
argv_append(&r, NULL);
}
if (a)
if (source)
{
for (i = 0; i < a->argc; ++i)
for (size_t i = 0; i < source->argc; ++i)
{
argv_append(&r, string_alloc(a->argv[i], NULL));
argv_append(&r, string_alloc(source->argv[i], &r.gc));
}
}
return r;
}
/**
* Inserts an argument string in front of all other argument slots.
*
* @param *a Valid pointer to the struct argv to insert the argument into
* @param *head Pointer to the char * string with the argument to insert
*
* @returns Returns a new struct argv with the inserted argument in front
*/
struct argv
argv_insert_head(const struct argv *a, const char *head)
{
struct argv r;
r = argv_clone(a, 1);
r.argv[0] = string_alloc(head, NULL);
r.argv[0] = string_alloc(head, &r.gc);
return r;
}
static char *
argv_term(const char **f)
{
const char *p = *f;
const char *term = NULL;
size_t termlen = 0;
if (*p == '\0')
{
return NULL;
}
while (true)
{
const int c = *p;
if (c == '\0')
{
break;
}
if (term)
{
if (!isspace(c))
{
++termlen;
}
else
{
break;
}
}
else
{
if (!isspace(c))
{
term = p;
termlen = 1;
}
}
++p;
}
*f = p;
if (term)
{
char *ret;
ASSERT(termlen > 0);
ret = malloc(termlen + 1);
check_malloc_return(ret);
memcpy(ret, term, termlen);
ret[termlen] = '\0';
return ret;
}
else
{
return NULL;
}
}
/**
* Generate a single string with all the arguments in a struct argv
* concatenated.
*
* @param *a Valid pointer to the struct argv with the arguments to list
* @param *gc Pointer to a struct gc_arena managed buffer
* @param flags Flags passed to the print_argv() function.
*
* @returns Returns a string generated by print_argv() with all the arguments
* concatenated. If the argument count is 0, it will return an empty
* string. The return string is allocated in the gc_arena managed
* buffer. If the gc_arena pointer is NULL, the returned string
* must be free()d explicitly to avoid memory leaks.
*/
const char *
argv_str(const struct argv *a, struct gc_arena *gc, const unsigned int flags)
{
if (a->argv)
{
return print_argv((const char **)a->argv, gc, flags);
}
else
{
return "";
}
return print_argv((const char **)a->argv, gc, flags);
}
/**
* Write the arguments stored in a struct argv via the msg() command.
*
* @param msglev Integer with the message level used by msg().
* @param *a Valid pointer to the struct argv with the arguments to write.
*/
void
argv_msg(const int msglev, const struct argv *a)
{
......@@ -209,6 +249,15 @@ argv_msg(const int msglev, const struct argv *a)
gc_free(&gc);
}
/**
* Similar to argv_msg() but prefixes the messages being written with a
* given string.
*
* @param msglev Integer with the message level used by msg().
* @param *a Valid pointer to the struct argv with the arguments to write
* @param *prefix Valid char * pointer to the prefix string
*
*/
void
argv_msg_prefix(const int msglev, const struct argv *a, const char *prefix)
{
......@@ -217,144 +266,239 @@ argv_msg_prefix(const int msglev, const struct argv *a, const char *prefix)
gc_free(&gc);
}
static void
argv_printf_arglist(struct argv *a, const char *format, va_list arglist)
/**
* Prepares argv format string for further processing
*
* Individual argument must be separated by space. Ignores leading and
* trailing spaces. Consecutive spaces count as one. Returns prepared
* format string, with space replaced by delim and adds the number of
* arguments to the count parameter.
*
* @param *format Pointer to a the format string to process
* @param delim Char with the delimiter to use
* @param *count size_t pointer used to return the number of
* tokens (argument slots) found in the format string.
* @param *gc Pointer to a gc_arena managed buffer.
*
* @returns Returns a parsed format string (char *), together with the
* number of tokens parts found (via *count). The result string
* is allocated within the gc_arena managed buffer. If the
* gc_arena pointer is NULL, the returned string must be explicitly
* free()d to avoid memory leaks.
*/
static char *
argv_prep_format(const char *format, const char delim, size_t *count,
struct gc_arena *gc)
{
char *term;
const char *f = format;
argv_extend(a, 1); /* ensure trailing NULL */
if (format == NULL)
{
return NULL;
}
while ((term = argv_term(&f)) != NULL)
bool in_token = false;
char *f = gc_malloc(strlen(format) + 1, true, gc);
for (int i = 0, j = 0; i < strlen(format); i++)
{
if (term[0] == '%')
if (format[i] == ' ')
{
if (!strcmp(term, "%s"))
{
char *s = va_arg(arglist, char *);
if (!s)
{
s = "";
}
argv_append(a, string_alloc(s, NULL));
}
else if (!strcmp(term, "%d"))
{
char numstr[64];
openvpn_snprintf(numstr, sizeof(numstr), "%d", va_arg(arglist, int));
argv_append(a, string_alloc(numstr, NULL));
}
else if (!strcmp(term, "%u"))
{
char numstr[64];
openvpn_snprintf(numstr, sizeof(numstr), "%u", va_arg(arglist, unsigned int));
argv_append(a, string_alloc(numstr, NULL));
}
else if (!strcmp(term, "%lu"))
{
char numstr[64];
openvpn_snprintf(numstr, sizeof(numstr), "%lu",
va_arg(arglist, unsigned long));
argv_append(a, string_alloc(numstr, NULL));
}
else if (!strcmp(term, "%s/%d"))
{
char numstr[64];
char *s = va_arg(arglist, char *);
if (!s)
{
s = "";
}
openvpn_snprintf(numstr, sizeof(numstr), "%d", va_arg(arglist, int));
{
const size_t len = strlen(s) + strlen(numstr) + 2;
char *combined = (char *) malloc(len);
check_malloc_return(combined);
strcpy(combined, s);
strcat(combined, "/");
strcat(combined, numstr);
argv_append(a, combined);
}
}
else if (!strcmp(term, "%s%sc"))
{
char *s1 = va_arg(arglist, char *);
char *s2 = va_arg(arglist, char *);
char *combined;
if (!s1)
{
s1 = "";
}
if (!s2)
{
s2 = "";
}
combined = (char *) malloc(strlen(s1) + strlen(s2) + 1);
check_malloc_return(combined);
strcpy(combined, s1);
strcat(combined, s2);
argv_append(a, combined);
}
else
{
ASSERT(0);
}
free(term);
in_token = false;
continue;
}
else
if (!in_token)
{
argv_append(a, term);
(*count)++;
/*
* We don't add any delimiter to the output string if
* the string is empty; the resulting format string
* will never start with a delimiter.
*/
if (j > 0) /* Has anything been written to the output string? */
{
f[j++] = delim;
}
}
f[j++] = format[i];
in_token = true;
}
return f;
}
void
argv_printf(struct argv *a, const char *format, ...)
/**
* Create a struct argv based on a format string
*
* Instead of parsing the format string ourselves place delimiters via
* argv_prep_format() before we let libc's printf() do the parsing.
* Then split the resulting string at the injected delimiters.
*
* @param *argres Valid pointer to a struct argv where the resulting parsed
* arguments, based on the format string.
* @param *format Char* string with a printf() compliant format string
* @param arglist A va_list with the arguments to be consumed by the format
* string
*
* @returns Returns true if the parsing and processing was successfully. If
* the resulting number of arguments does not match the expected
* number of arguments (based on the format string), it is
* considered a failure, which returns false. This can happen if
* the ASCII Group Separator (GS - 0x1D) is put into the arguments
* list or format string.
*/
static bool
argv_printf_arglist(struct argv *argres, const char *format, va_list arglist)
{
const char delim = 0x1D; /* ASCII Group Separator (GS) */
bool res = false;
/*
* Prepare a format string which will be used by vsnprintf() later on.
*
* This means all space separators in the input format string will be
* replaced by the GS (0x1D), so we can split this up again after the
* the vsnprintf() call into individual arguments again which will be
* saved in the struct argv.
*
*/
size_t argc = argres->argc;
char *f = argv_prep_format(format, delim, &argc, &argres->gc);
if (f == NULL)
{
goto out;
}
/*
* Determine minimum buffer size.
*
* With C99, vsnprintf(NULL, 0, ...) will return the number of bytes
* it would have written, had the buffer been large enough.
*/
va_list tmplist;
va_copy(tmplist, arglist);
int len = vsnprintf(NULL, 0, f, tmplist);
va_end(tmplist);
if (len < 0)
{
goto out;
}
/*
* Do the actual vsnprintf() operation, which expands the format
* string with the provided arguments.
*/
size_t size = len + 1;
char *buf = gc_malloc(size, false, &argres->gc);
len = vsnprintf(buf, size, f, arglist);
if (len < 0 || len >= size)
{
goto out;
}
/*
* Split the string at the GS (0x1D) delimiters and put each elemen
* into the struct argv being returned to the caller.
*/
char *end = strchr(buf, delim);
while (end)
{
*end = '\0';
argv_append(argres, buf);
buf = end + 1;
end = strchr(buf, delim);
}
argv_append(argres, buf);
if (argres->argc != argc)
{
/* Someone snuck in a GS (0x1D), fail gracefully */
argv_reset(argres);
goto out;
}
res = true;
out:
return res;
}
/**
* printf() variant which populates a struct argv. It processes the
* format string with the provided arguments. For each space separator found
* in the format string, a new argument will be added to the resulting
* struct argv.
*
* This will always reset and ensure the result is based on a pristine
* struct argv.
*
* @param *argres Valid pointer to a struct argv where the result will be put.
* @param *format printf() compliant (char *) format string.
*
* @returns Returns true if the parsing was successful. See
* argv_printf_arglist() for more details. The parsed result will
* be put into argres.
*/
bool
argv_printf(struct argv *argres, const char *format, ...)
{
va_list arglist;
argv_reset(a);
va_start(arglist, format);
argv_printf_arglist(a, format, arglist);
argv_reset(argres);
bool res = argv_printf_arglist(argres, format, arglist);
va_end(arglist);
return res;
}
void
argv_printf_cat(struct argv *a, const char *format, ...)
/**
* printf() inspired argv concatenation. Adds arguments to an existing
* struct argv and populets the argument slots based on the printf() based
* format string.
*
* @param *argres Valid pointer to a struct argv where the result will be put.
* @param *format printf() compliant (char *) format string.
*
* @returns Returns true if the parsing was successful. See
* argv_printf_arglist() for more details. The parsed result will
* be put into argres.
*/
bool
argv_printf_cat(struct argv *argres, const char *format, ...)
{
va_list arglist;
va_start(arglist, format);
argv_printf_arglist(a, format, arglist);
bool res = argv_printf_arglist(argres, format, arglist);
va_end(arglist);
return res;
}
/**
* Parses a command string, tokenizes it and puts each element into a separate
* struct argv argument slot.
*
* @params *argres Valid pointer to a struct argv where the parsed result
* will be found.
* @params *cmdstr Char * based string to parse
*
*/
void
argv_parse_cmd(struct argv *a, const char *s)
argv_parse_cmd(struct argv *argres, const char *cmdstr)
{
int nparms;
char *parms[MAX_PARMS + 1];
struct gc_arena gc = gc_new();
argv_reset(a);
argv_extend(a, 1); /* ensure trailing NULL */
argv_reset(argres);
nparms = parse_line(s, parms, MAX_PARMS, "SCRIPT-ARGV", 0, D_ARGV_PARSE_CMD, &gc);
char *parms[MAX_PARMS + 1] = { 0 };
int nparms = parse_line(cmdstr, parms, MAX_PARMS, "SCRIPT-ARGV", 0,
D_ARGV_PARSE_CMD, &argres->gc);
if (nparms)
{
int i;
for (i = 0; i < nparms; ++i)
{
argv_append(a, string_alloc(parms[i], NULL));
argv_append(argres, parms[i]);
}
}
else
{
argv_append(a, string_alloc(s, NULL));
argv_append(argres, string_alloc(cmdstr, &argres->gc));
}
gc_free(&gc);
}
src/openvpn/argv.h
View file @ e1e1377b
......@@ -5,7 +5,7 @@
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
* Copyright (C) 2002-2022 OpenVPN Inc <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
......@@ -33,6 +33,7 @@
#include "buffer.h"
struct argv {
struct gc_arena gc;
size_t capacity;
size_t argc;
char **argv;
......@@ -40,7 +41,7 @@ struct argv {
struct argv argv_new(void);
void argv_reset(struct argv *a);
void argv_free(struct argv *a);
const char *argv_str(const struct argv *a, struct gc_arena *gc, const unsigned int flags);
......@@ -52,7 +53,7 @@ void argv_msg_prefix(const int msglev, const struct argv *a, const char *prefix)
void argv_parse_cmd(struct argv *a, const char *s);
void argv_printf(struct argv *a, const char *format, ...)
bool argv_printf(struct argv *a, const char *format, ...)
#ifdef __GNUC__
#if __USE_MINGW_ANSI_STDIO
__attribute__ ((format(gnu_printf, 2, 3)))
......@@ -62,7 +63,7 @@ __attribute__ ((format(__printf__, 2, 3)))
#endif
;
void argv_printf_cat(struct argv *a, const char *format, ...)
bool argv_printf_cat(struct argv *a, const char *format, ...)
#ifdef __GNUC__
#if __USE_MINGW_ANSI_STDIO
__attribute__ ((format(gnu_printf, 2, 3)))
......
src/openvpn/auth_token.c 0 → 100644
View file @ e1e1377b
#ifdef HAVE_CONFIG_H
#include "config.h"
#elif defined(_MSC_VER)
#include "config-msvc.h"
#endif
#include "syshead.h"
#include "base64.h"
#include "buffer.h"
#include "crypto.h"
#include "openvpn.h"
#include "ssl_common.h"
#include "auth_token.h"
#include "push.h"
#include "integer.h"
#include "ssl.h"
#include "ssl_verify.h"
#include <inttypes.h>
const char *auth_token_pem_name = "OpenVPN auth-token server key";
#define AUTH_TOKEN_SESSION_ID_LEN 12
#define AUTH_TOKEN_SESSION_ID_BASE64_LEN (AUTH_TOKEN_SESSION_ID_LEN * 8 / 6)
#if AUTH_TOKEN_SESSION_ID_LEN % 3
#error AUTH_TOKEN_SESSION_ID_LEN needs to be multiple a 3
#endif
/* Size of the data of the token (not b64 encoded and without prefix) */
#define TOKEN_DATA_LEN (2 * sizeof(int64_t) + AUTH_TOKEN_SESSION_ID_LEN + 32)
static struct key_type
auth_token_kt(void)
{
return create_kt("none", "SHA256", "auth-gen-token");
}
void
add_session_token_env(struct tls_session *session, struct tls_multi *multi,
const struct user_pass *up)
{
if (!multi->opt.auth_token_generate)
{
return;
}
int auth_token_state_flags = session->key[KS_PRIMARY].auth_token_state_flags;
const char *state;
if (!is_auth_token(up->password))
{
state = "Initial";
}
else if (auth_token_state_flags & AUTH_TOKEN_HMAC_OK)
{
switch (auth_token_state_flags & (AUTH_TOKEN_VALID_EMPTYUSER|AUTH_TOKEN_EXPIRED))
{
case 0:
state = "Authenticated";
break;
case AUTH_TOKEN_EXPIRED:
state = "Expired";
break;
case AUTH_TOKEN_VALID_EMPTYUSER:
state = "AuthenticatedEmptyUser";
break;
case AUTH_TOKEN_VALID_EMPTYUSER | AUTH_TOKEN_EXPIRED:
state = "ExpiredEmptyUser";
break;
default:
/* Silence compiler warning, all four possible combinations are covered */
ASSERT(0);
}
}
else
{
state = "Invalid";
}
setenv_str(session->opt->es, "session_state", state);
/* We had a valid session id before */
const char *session_id_source;
if (auth_token_state_flags & AUTH_TOKEN_HMAC_OK
&& !(auth_token_state_flags & AUTH_TOKEN_EXPIRED))
{
session_id_source = up->password;
}
else
{
/*
* No session before, generate a new session token for the new session
*/
if (!multi->auth_token_initial)
{
generate_auth_token(up, multi);
}
session_id_source = multi->auth_token_initial;
}
/*
* In the auth-token the auth token is already base64 encoded
* and being a multiple of 4 ensure that it a multiple of bytes
* in the encoding
*/
char session_id[AUTH_TOKEN_SESSION_ID_LEN*2] = {0};
memcpy(session_id, session_id_source + strlen(SESSION_ID_PREFIX),
AUTH_TOKEN_SESSION_ID_LEN*8/6);
setenv_str(session->opt->es, "session_id", session_id);
}
void
auth_token_write_server_key_file(const char *filename)
{
write_pem_key_file(filename, auth_token_pem_name);
}
void
auth_token_init_secret(struct key_ctx *key_ctx, const char *key_file,
bool key_inline)
{
struct key_type kt = auth_token_kt();
struct buffer server_secret_key = alloc_buf(2048);
bool key_loaded = false;
if (key_file)
{
key_loaded = read_pem_key_file(&server_secret_key,
auth_token_pem_name,
key_file, key_inline);
}
else
{
key_loaded = generate_ephemeral_key(&server_secret_key,
auth_token_pem_name);
}
if (!key_loaded)
{
msg(M_FATAL, "ERROR: Cannot load auth-token secret");
}
struct key key;
if (!buf_read(&server_secret_key, &key, sizeof(key)))
{
msg(M_FATAL, "ERROR: not enough data in auth-token secret");
}
init_key_ctx(key_ctx, &key, &kt, false, "auth-token secret");
free_buf(&server_secret_key);
}
void
generate_auth_token(const struct user_pass *up, struct tls_multi *multi)
{
struct gc_arena gc = gc_new();
int64_t timestamp = htonll((uint64_t)now);
int64_t initial_timestamp = timestamp;
hmac_ctx_t *ctx = multi->opt.auth_token_key.hmac;
ASSERT(hmac_ctx_size(ctx) == 256/8);
uint8_t sessid[AUTH_TOKEN_SESSION_ID_LEN];
if (multi->auth_token_initial)
{
/* Just enough space to fit 8 bytes+ 1 extra to decode a non padded
* base64 string (multiple of 3 bytes). 9 bytes => 12 bytes base64
* bytes
*/
char old_tstamp_decode[9];
/* Make a copy of the string to not modify multi->auth_token_initial */
char *initial_token_copy = string_alloc(multi->auth_token_initial, &gc);
char *old_sessid = initial_token_copy + strlen(SESSION_ID_PREFIX);
char *old_tsamp_initial = old_sessid + AUTH_TOKEN_SESSION_ID_LEN*8/6;
/*
* We null terminate the old token just after the session ID to let
* our base64 decode function only decode the session ID
*/
old_tsamp_initial[12] = '\0';
ASSERT(openvpn_base64_decode(old_tsamp_initial, old_tstamp_decode, 9) == 9);
/*
* Avoid old gcc (4.8.x) complaining about strict aliasing
* by using a temporary variable instead of doing it in one
* line
*/
uint64_t *tstamp_ptr = (uint64_t *) old_tstamp_decode;
initial_timestamp = *tstamp_ptr;
old_tsamp_initial[0] = '\0';
ASSERT(openvpn_base64_decode(old_sessid, sessid, AUTH_TOKEN_SESSION_ID_LEN) == AUTH_TOKEN_SESSION_ID_LEN);
}
else if (!rand_bytes(sessid, AUTH_TOKEN_SESSION_ID_LEN))
{
msg( M_FATAL, "Failed to get enough randomness for "
"authentication token");
}
/* Calculate the HMAC */
/* We enforce up->username to be \0 terminated in ssl.c.. Allowing username
* with \0 in them is asking for troubles in so many ways anyway that we
* ignore that corner case here
*/
uint8_t hmac_output[256/8];
hmac_ctx_reset(ctx);
/*
* If the token was only valid for the empty user, also generate
* a new token with the empty username since we do not want to loose
* the information that the username cannot be trusted
*/
struct key_state *ks = &multi->session[TM_ACTIVE].key[KS_PRIMARY];
if (ks->auth_token_state_flags & AUTH_TOKEN_VALID_EMPTYUSER)
{
hmac_ctx_update(ctx, (const uint8_t *) "", 0);
}
else
{
hmac_ctx_update(ctx, (uint8_t *) up->username, (int) strlen(up->username));
}
hmac_ctx_update(ctx, sessid, AUTH_TOKEN_SESSION_ID_LEN);
hmac_ctx_update(ctx, (uint8_t *) &initial_timestamp, sizeof(initial_timestamp));
hmac_ctx_update(ctx, (uint8_t *) &timestamp, sizeof(timestamp));
hmac_ctx_final(ctx, hmac_output);
/* Construct the unencoded session token */
struct buffer token = alloc_buf_gc(
2*sizeof(uint64_t) + AUTH_TOKEN_SESSION_ID_LEN + 256/8, &gc);
ASSERT(buf_write(&token, sessid, sizeof(sessid)));
ASSERT(buf_write(&token, &initial_timestamp, sizeof(initial_timestamp)));
ASSERT(buf_write(&token, &timestamp, sizeof(timestamp)));
ASSERT(buf_write(&token, hmac_output, sizeof(hmac_output)));
char *b64output = NULL;
openvpn_base64_encode(BPTR(&token), BLEN(&token), &b64output);
struct buffer session_token = alloc_buf_gc(
strlen(SESSION_ID_PREFIX) + strlen(b64output) + 1, &gc);
ASSERT(buf_write(&session_token, SESSION_ID_PREFIX, strlen(SESSION_ID_PREFIX)));
ASSERT(buf_write(&session_token, b64output, (int)strlen(b64output)));
ASSERT(buf_write_u8(&session_token, 0));
free(b64output);
/* free the auth-token if defined, we will replace it with a new one */
free(multi->auth_token);
multi->auth_token = strdup((char *)BPTR(&session_token));
dmsg(D_SHOW_KEYS, "Generated token for client: %s (%s)",
multi->auth_token, up->username);
if (!multi->auth_token_initial)
{
/*
* Save the initial auth token to continue using the same session ID
* and timestamp in updates
*/
multi->auth_token_initial = strdup(multi->auth_token);
}
gc_free(&gc);
}
static bool
check_hmac_token(hmac_ctx_t *ctx, const uint8_t *b64decoded, const char *username)
{
ASSERT(hmac_ctx_size(ctx) == 256/8);
uint8_t hmac_output[256/8];
hmac_ctx_reset(ctx);
hmac_ctx_update(ctx, (uint8_t *) username, (int)strlen(username));
hmac_ctx_update(ctx, b64decoded, TOKEN_DATA_LEN - 256/8);
hmac_ctx_final(ctx, hmac_output);
const uint8_t *hmac = b64decoded + TOKEN_DATA_LEN - 256/8;
return memcmp_constant_time(&hmac_output, hmac, 32) == 0;
}
unsigned int
verify_auth_token(struct user_pass *up, struct tls_multi *multi,
struct tls_session *session)
{
/*
* Base64 is <= input and input is < USER_PASS_LEN, so using USER_PASS_LEN
* is safe here but a bit overkill
*/
uint8_t b64decoded[USER_PASS_LEN];
int decoded_len = openvpn_base64_decode(up->password + strlen(SESSION_ID_PREFIX),
b64decoded, USER_PASS_LEN);
/*
* Ensure that the decoded data is the size of the
* timestamp + hmac + session id
*/
if (decoded_len != TOKEN_DATA_LEN)
{
msg(M_WARN, "ERROR: --auth-token wrong size (%d!=%d)",
decoded_len, (int) TOKEN_DATA_LEN);
return 0;
}
unsigned int ret = 0;
const uint8_t *sessid = b64decoded;
const uint8_t *tstamp_initial = sessid + AUTH_TOKEN_SESSION_ID_LEN;
const uint8_t *tstamp = tstamp_initial + sizeof(int64_t);
uint64_t timestamp = ntohll(*((uint64_t *) (tstamp)));
uint64_t timestamp_initial = ntohll(*((uint64_t *) (tstamp_initial)));
hmac_ctx_t *ctx = multi->opt.auth_token_key.hmac;
if (check_hmac_token(ctx, b64decoded, up->username))
{
ret |= AUTH_TOKEN_HMAC_OK;
}
else if (check_hmac_token(ctx, b64decoded, ""))
{
ret |= AUTH_TOKEN_HMAC_OK;
ret |= AUTH_TOKEN_VALID_EMPTYUSER;
/* overwrite the username of the client with the empty one */
strcpy(up->username, "");
}
else
{
msg(M_WARN, "--auth-gen-token: HMAC on token from client failed (%s)",
up->username);
return 0;
}
/* Accept session tokens that not expired are in the acceptable range
* for renogiations */
bool in_renegotiation_time = now >= timestamp
&& now < timestamp + 2 * session->opt->renegotiate_seconds;
if (!in_renegotiation_time)
{
ret |= AUTH_TOKEN_EXPIRED;
}
/* Sanity check the initial timestamp */
if (timestamp < timestamp_initial)
{
msg(M_WARN, "Initial timestamp (%" PRIu64 " in token from client earlier than "
"current timestamp %" PRIu64 ". Broken/unsynchronised clock?",
timestamp_initial, timestamp);
ret |= AUTH_TOKEN_EXPIRED;
}
if (multi->opt.auth_token_lifetime
&& now > timestamp_initial + multi->opt.auth_token_lifetime)
{
ret |= AUTH_TOKEN_EXPIRED;
}
if (ret & AUTH_TOKEN_EXPIRED)
{
/* Tell client that the session token is expired */
auth_set_client_reason(multi, "SESSION: token expired");
msg(M_INFO, "--auth-gen-token: auth-token from client expired");
}
/* Check that we do have the same session ID in the token as in our stored
* auth-token to ensure that it did not change.
* This also compares the prefix and session part of the
* tokens, which should be identical if the session ID stayed the same */
if (multi->auth_token_initial
&& memcmp_constant_time(multi->auth_token_initial, up->password,
strlen(SESSION_ID_PREFIX) + AUTH_TOKEN_SESSION_ID_BASE64_LEN))
{
msg(M_WARN, "--auth-gen-token: session id in token changed (Rejecting "
"token.");
ret = 0;
}
return ret;
}
void
wipe_auth_token(struct tls_multi *multi)
{
if (multi)
{
if (multi->auth_token)
{
secure_memzero(multi->auth_token, strlen(multi->auth_token));
free(multi->auth_token);
}
if (multi->auth_token_initial)
{
secure_memzero(multi->auth_token_initial,
strlen(multi->auth_token_initial));
free(multi->auth_token_initial);
}
multi->auth_token = NULL;
multi->auth_token_initial = NULL;
}
}
void
resend_auth_token_renegotiation(struct tls_multi *multi, struct tls_session *session)
{
/*
* Auth token already sent to client, update auth-token on client.
* The initial auth-token is sent as part of the push message, for this
* update we need to schedule an extra push message.
*
* Otherwise the auth-token get pushed out as part of the "normal"
* push-reply
*/
bool is_renegotiation = session->key[KS_PRIMARY].key_id != 0;
if (multi->auth_token_initial && is_renegotiation)
{
/*
* We do not explicitly reschedule the sending of the
* control message here. This might delay this reply
* a few seconds but this message is not time critical
*/
send_push_reply_auth_token(multi);
}
}
src/openvpn/auth_token.h 0 → 100644
View file @ e1e1377b
/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single TCP/UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2022 OpenVPN Inc <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef AUTH_TOKEN_H
#define AUTH_TOKEN_H
/**
* Generate an auth token based on username and timestamp
*
* The idea of auth token is to be stateless, so that we can verify use it
* even after we have forgotten about it or server has been restarted.
*
* To achieve this even though we cannot trust the client we use HMAC
* to be able to verify the information.
*
* Format of the auth-token (before base64 encode)
*
* session id(12 bytes)|uint64 timestamp (8 bytes)|
* uint64 timestamp (8 bytes)|sha256-hmac(32 bytes)
*
* The first timestamp is the time the token was initially created and is used to
* determine the maximum renewable time of the token. We always include this even
* if tokens do not expire (this value is not used) to keep the code cleaner.
*
* The second timestamp is the time the token was renewed/regenerated and is used
* to determine if this token has been renewed in the acceptable time range
* (2 * renogiation timeout)
*
* The session id is a random string of 12 byte (or 16 in base64) that is not
* used by OpenVPN itself but kept intact so that external logging/managment
* can track the session multiple reconnects/servers. It is delibrately chosen
* be a multiple of 3 bytes to have a base64 encoding without padding.
*
* The hmac is calculated over the username contactinated with the
* raw auth-token bytes to include authentication of the username in the token
*
* We encode the auth-token with base64 and then prepend "SESS_ID_" before
* sending it to the client.
*
* This function will free() an existing multi->auth_token and keep the
* existing initial timestamp and session id contained in that token.
*/
void
generate_auth_token(const struct user_pass *up, struct tls_multi *multi);
/**
* Verifies the auth token to be in the format that generate_auth_token
* create and checks if the token is valid.
*
*/
unsigned
verify_auth_token(struct user_pass *up, struct tls_multi *multi,
struct tls_session *session);
/**
* Loads an HMAC secret from a file or if no file is present generates a
* epheremal secret for the run time of the server and stores it into ctx
*/
void
auth_token_init_secret(struct key_ctx *key_ctx, const char *key_file,
bool key_inline);
/**
* Generate a auth-token server secret key, and write to file.
*
* @param filename Filename of the server key file to create.
*/
void auth_token_write_server_key_file(const char *filename);
/**
* Put the session id, and auth token status into the environment
* if auth-token is enabled
*
*/
void add_session_token_env(struct tls_session *session, struct tls_multi *multi,
const struct user_pass *up);
/**
* Wipes the authentication token out of the memory, frees and cleans up
* related buffers and flags
*
* @param multi Pointer to a multi object holding the auth_token variables
*/
void wipe_auth_token(struct tls_multi *multi);
/**
* The prefix given to auth tokens start with, this prefix is special
* cased to not show up in log files in OpenVPN 2 and 3
*
* We also prefix this with _AT_ to only act on auth token generated by us.
*/
#define SESSION_ID_PREFIX "SESS_ID_AT_"
/**
* Return if the password string has the format of a password.
*
* This function will always read as many bytes as SESSION_ID_PREFIX is longer
* the caller needs ensure that password memory is at least that long (true for
* calling with struct user_pass)
* @param password
* @return whether the password string starts with the session token prefix
*/
static inline bool
is_auth_token(const char *password)
{
return (memcmp_constant_time(SESSION_ID_PREFIX, password,
strlen(SESSION_ID_PREFIX)) == 0);
}
/**
* Checks if a client should be sent a new auth token to update its
* current auth-token
* @param multi Pointer the multi object of the TLS session
* @param session Pointer to the TLS session itself
*/
void
resend_auth_token_renegotiation(struct tls_multi *multi, struct tls_session *session);
#endif /* AUTH_TOKEN_H */
src/openvpn/base64.h
View file @ e1e1377b
......@@ -34,6 +34,10 @@
#ifndef _BASE64_H_
#define _BASE64_H_
/** Compute resulting base64 length. 6 bits per byte, padded to 4 bytes. */
#define OPENVPN_BASE64_LENGTH(binary_length) \
((((8 * binary_length) / 6) + 3) & ~3)
int openvpn_base64_encode(const void *data, int size, char **str);
int openvpn_base64_decode(const char *str, void *data, int size);
......