A local copy of OpenSSL from GitHub
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# We place all implementations in static libraries, and then let the
# provider mains pilfer what they want through symbol resolution when
# linking.
#
# The non-legacy implementations (libimplementations) must be made FIPS
# agnostic as much as possible, as well as the common building blocks
# (libcommon). The legacy implementations (liblegacy) will never be
# part of the FIPS provider.
#
# If there is anything that isn't FIPS agnostic, it should be set aside
# in its own source file, which is then included directly into other
# static libraries geared for FIPS and non-FIPS providers, and built
# separately.
#
# libcommon.a Contains common building blocks, potentially
# needed both by non-legacy and legacy code.
#
# libimplementations.a Contains all non-legacy implementations.
# liblegacy.a Contains all legacy implementations.
#
# libfips.a Contains all things needed to support
# FIPS implementations, such as code from
# crypto/ and object files that contain
# FIPS-specific code. FIPS_MODE is defined
# for this library. The FIPS module uses
# this.
# libnonfips.a Corresponds to libfips.a, but built with
# FIPS_MODE undefined. The default and legacy
# providers use this.
SUBDIRS=common implementations
INCLUDE[../libcrypto]=common/include
# Libraries we're dealing with
$LIBCOMMON=libcommon.a
$LIBIMPLEMENTATIONS=libimplementations.a
$LIBLEGACY=liblegacy.a
$LIBNONFIPS=libnonfips.a
$LIBFIPS=libfips.a
# Enough of our implementations include prov/ciphercommon.h (present in
# providers/implementations/include), which includes crypto/*_platform.h
# (present in include), which in turn may include very internal header
# files in crypto/, so let's have a common include list for them all.
$COMMON_INCLUDES=../crypto ../include implementations/include common/include
INCLUDE[$LIBCOMMON]=$COMMON_INCLUDES
INCLUDE[$LIBIMPLEMENTATIONS]=.. $COMMON_INCLUDES
INCLUDE[$LIBLEGACY]=.. $COMMON_INCLUDES
INCLUDE[$LIBNONFIPS]=$COMMON_INCLUDES
INCLUDE[$LIBFIPS]=.. $COMMON_INCLUDES
DEFINE[$LIBFIPS]=FIPS_MODE
# Weak dependencies to provide library order information.
# We make it weak so they aren't both used always; what is
# actually used is determined by non-weak dependencies.
DEPEND[$LIBIMPLEMENTATIONS]{weak}=$LIBFIPS $LIBNONFIPS
DEPEND[$LIBCOMMON]{weak}=$LIBFIPS
# Strong dependencies. This ensures that any time libimplementations
# is used, libcommon gets included as well.
DEPEND[$LIBIMPLEMENTATIONS]=$LIBCOMMON
DEPEND[$LIBNONFIPS]=../libcrypto
# It's tempting to make libcommon depend on ../libcrypto. However,
# since the FIPS provider module must NOT depend on ../libcrypto, we
# need to set that dependency up specifically for the final products
# that use $LIBCOMMON or anything that depends on it.
# Libraries common to all providers, must be built regardless
LIBS{noinst}=$LIBCOMMON
# Libraries that are common for all non-FIPS providers, must be built regardless
LIBS{noinst}=$LIBNONFIPS $LIBIMPLEMENTATIONS
#
# Default provider stuff
#
# Because the default provider is built in, it means that libcrypto must
# include all the object files that are needed (we do that indirectly,
# by using the appropriate libraries as source). Note that for shared
# libraries, SOURCEd libraries are considered as if the where specified
# with DEPEND.
$DEFAULTGOAL=../libcrypto
SOURCE[$DEFAULTGOAL]=$LIBIMPLEMENTATIONS $LIBNONFIPS
SOURCE[$DEFAULTGOAL]=defltprov.c
# Some legacy implementations depend on provider header files
INCLUDE[$DEFAULTGOAL]=implementations/include
LIBS=$DEFAULTGOAL
#
# FIPS provider stuff
#
# We define it this way to ensure that configdata.pm will have all the
# necessary information even if we don't build the module. This will allow
# us to make all kinds of checks on the source, based on what we specify in
# diverse build.info files. libfips.a, fips.so and their sources aren't
# built unless the proper LIBS or MODULES statement has been seen, so we
# have those and only those within a condition.
SUBDIRS=fips
$FIPSGOAL=fips
DEPEND[$FIPSGOAL]=$LIBIMPLEMENTATIONS $LIBFIPS
INCLUDE[$FIPSGOAL]=../include
DEFINE[$FIPSGOAL]=FIPS_MODE
IF[{- defined $target{shared_defflag} -}]
SOURCE[$FIPSGOAL]=fips.ld
GENERATE[fips.ld]=../util/providers.num
ENDIF
IF[{- !$disabled{fips} -}]
# This is the trigger to actually build the FIPS module. Without these
# statements, the final build file will not have a trace of it.
MODULES=$FIPSGOAL
LIBS{noinst}=$LIBFIPS
ENDIF
#
# Legacy provider stuff
#
IF[{- !$disabled{legacy} -}]
# The legacy implementation library
LIBS{noinst}=$LIBLEGACY
DEPEND[$LIBLEGACY]=$LIBCOMMON $LIBNONFIPS
# The Legacy provider
IF[{- $disabled{module} -}]
# Become built in
# In this case, we need to do the same thing a for the default provider,
# and make the liblegacy object files end up in libcrypto. We could also
# just say that for the built-in legacy, we put the source directly in
# libcrypto instead of going via liblegacy, but that makes writing the
# implementation specific build.info files harder to write, so we don't.
$LEGACYGOAL=../libcrypto
SOURCE[$LEGACYGOAL]=$LIBLEGACY
DEFINE[$LIBLEGACY]=STATIC_LEGACY
DEFINE[$LEGACYGOAL]=STATIC_LEGACY
ELSE
# Become a module
# In this case, we can work with dependencies
$LEGACYGOAL=legacy
MODULES=$LEGACYGOAL
DEPEND[$LEGACYGOAL]=$LIBLEGACY
IF[{- defined $target{shared_defflag} -}]
SOURCE[legacy]=legacy.ld
GENERATE[legacy.ld]=../util/providers.num
ENDIF
ENDIF
# Common things that are valid no matter what form the Legacy provider
# takes.
SOURCE[$LEGACYGOAL]=legacyprov.c
INCLUDE[$LEGACYGOAL]=../include implementations/include
ENDIF
#
# Null provider stuff
#
# Because the null provider is built in, it means that libcrypto must
# include all the object files that are needed.
$NULLGOAL=../libcrypto
SOURCE[$NULLGOAL]=nullprov.c