#
# Include the TEA standard macro set
#
builtin(include,tclconfig/tcl.m4)
#
# Add here whatever m4 macros you want to define for your package
#
AC_DEFUN([TCLTLS_SSL_OPENSSL], [
AC_CHECK_TOOL([PKG_CONFIG], [pkg-config])
dnl Disable support for TLS 1.0 protocol
AC_ARG_ENABLE([tls1], AS_HELP_STRING([--disable-tls1], [disable TLS1 protocol]), [
if test "${enableval}" = "no"; then
AC_DEFINE([NO_TLS1], [1], [Disable TLS1 protocol])
AC_MSG_CHECKING([for disable TLS1 protocol])
AC_MSG_RESULT('yes')
fi
])
dnl Disable support for TLS 1.1 protocol
AC_ARG_ENABLE([tls1_1], AS_HELP_STRING([--disable-tls1_1], [disable TLS1.1 protocol]), [
if test "${enableval}" = "no"; then
AC_DEFINE([NO_TLS1_1], [1], [Disable TLS1.1 protocol])
AC_MSG_CHECKING([for disable TLS1.1 protocol])
AC_MSG_RESULT('yes')
fi
])
dnl Disable support for TLS 1.2 protocol
AC_ARG_ENABLE([tls1_2], AS_HELP_STRING([--disable-tls1_2], [disable TLS1.2 protocol]), [
if test "${enableval}" = "no"; then
AC_DEFINE([NO_TLS1_2], [1], [Disable TLS1.2 protocol])
AC_MSG_CHECKING([for disable TLS1.2 protocol])
AC_MSG_RESULT('yes')
fi
])
dnl Disable support for TLS 1.3 protocol
AC_ARG_ENABLE([tls1_3], AS_HELP_STRING([--disable-tls1_3], [disable TLS1.3 protocol]), [
if test "${enableval}" = "no"; then
AC_DEFINE([NO_TLS1_3], [1], [Disable TLS1.3 protocol])
AC_MSG_CHECKING([for disable TLS1.3 protocol])
AC_MSG_RESULT('yes')
fi
])
dnl Enable support for building the same Diffie–Hellman parameters each time
AC_ARG_ENABLE([deterministic], AS_HELP_STRING([--enable-deterministic], [enable deterministic DH parameters]), [
tcltls_deterministic="$enableval"
], [
tcltls_deterministic='no'
])
if test "$tcltls_deterministic" = 'yes'; then
GEN_DH_PARAMS_ARGS='fallback'
else
GEN_DH_PARAMS_ARGS=''
fi
dnl Enable support for specifying pre-computed DH params size
AC_ARG_WITH([builtin-dh-params-size], AS_HELP_STRING([--with-builtin-dh-params-size=<bits>],
[specify the size in bits of the built-in, precomputed, DH params]), [
AS_CASE([$withval],[2048|4096|8192],,[AC_MSG_ERROR([Unsupported DH params size: $withval])])
GEN_DH_PARAMS_ARGS="${GEN_DH_PARAMS_ARGS} bits=$withval"
])
AC_SUBST(GEN_DH_PARAMS_ARGS)
AC_MSG_CHECKING([for DH params])
AC_MSG_RESULT([$GEN_DH_PARAMS_ARGS])
dnl Determine if we have been asked to use a fast path if possible
AC_ARG_ENABLE([ssl-fastpath], AS_HELP_STRING([--enable-ssl-fastpath],
[enable using the underlying file descriptor for talking directly to the SSL library]), [
tcltls_ssl_fastpath="$enableval"
], [
tcltls_ssl_fastpath='no'
])
if test "$tcltls_ssl_fastpath" = 'yes'; then
AC_DEFINE(TCLTLS_SSL_USE_FASTPATH, [1], [Enable SSL library direct use of the underlying file descriptor])
fi
AC_MSG_CHECKING([for fast path])
AC_MSG_RESULT([$tcltls_ssl_fastpath])
dnl Enable hardening
AC_ARG_ENABLE([hardening], AS_HELP_STRING([--enable-hardening], [enable hardening attempts]), [
tcltls_enable_hardening="$enableval"
], [
tcltls_enable_hardening='yes'
])
if test "$tcltls_enable_hardening" = 'yes'; then
if test "$GCC" = 'yes' -o "$CC" = 'clang'; then
TEA_ADD_CFLAGS([-fstack-protector-all])
TEA_ADD_CFLAGS([-fno-strict-overflow])
AC_DEFINE([_FORTIFY_SOURCE], [2], [Enable fortification])
fi
fi
AC_MSG_CHECKING([for enable hardening])
AC_MSG_RESULT([$tcltls_enable_hardening])
dnl Determine if we have been asked to statically link to the SSL library
AC_ARG_ENABLE([static-ssl], AS_HELP_STRING([--enable-static-ssl], [enable static linking to the SSL library]), [
TCLEXT_TLS_STATIC_SSL="$enableval"
], [
TCLEXT_TLS_STATIC_SSL='no'
])
AC_MSG_CHECKING([for static linking of openSSL libraries])
AC_MSG_RESULT([$TCLEXT_TLS_STATIC_SSL])
dnl Set SSL files root path
AC_ARG_WITH([openssl-dir],
AS_HELP_STRING([--with-openssl-dir=<dir>],
[path to root directory of OpenSSL or LibreSSL installation]
), [
openssldir="$withval"
], [
openssldir=''
]
)
dnl Set SSL include files path
AC_ARG_WITH([openssl-includedir],
AS_HELP_STRING([--with-openssl-includedir=<dir>],
[path to include directory of OpenSSL or LibreSSL installation]
), [
opensslincludedir="$withval"
], [
if test -n "$openssldir"; then
opensslincludedir="$openssldir/include/openssl"
else
opensslincludedir=''
fi
]
)
AC_MSG_CHECKING([for OpenSSL include directory])
AC_MSG_RESULT($opensslincludedir)
dnl Set SSL include vars
if test -n "$opensslincludedir"; then
if test -f "$opensslincludedir/ssl.h"; then
TCLTLS_SSL_CFLAGS="-I$opensslincludedir"
TCLTLS_SSL_INCLUDES="-I$opensslincludedir"
else
AC_MSG_ERROR([Unable to locate ssl.h])
fi
else
TCLTLS_SSL_CFLAGS="-I$(includedir)/openssl"
TCLTLS_SSL_INCLUDES="-I$(includedir)/openssl"
fi
dnl Set SSL lib files path
AC_ARG_WITH([openssl-libdir],
AS_HELP_STRING([--with-openssl-libdir=<dir>],
[path to lib directory of OpenSSL or LibreSSL installation]
), [
openssllibdir="$withval"
], [
if test -n "$openssldir"; then
if test "$do64bit" == 'yes'; then
openssllibdir="$openssldir/lib64"
else
openssllibdir="$openssldir/lib"
fi
else
openssllibdir=''
fi
]
)
AC_MSG_CHECKING([for OpenSSL lib directory])
AC_MSG_RESULT($openssllibdir)
dnl Set SSL lib vars
if test -n "$openssllibdir"; then
if test -f "$openssllibdir/libssl${SHLIB_SUFFIX}"; then
if test "${TCLEXT_TLS_STATIC_SSL}" == 'no'; then
TCLTLS_SSL_LIBS="-L$openssllibdir -lcrypto -lssl"
else
# Linux and Solaris
TCLTLS_SSL_LIBS="-Wl,-Bstatic `$PKG_CONFIG --static --libs crypto ssl` -Wl,-Bdynamic"
# HPUX
# -Wl,-a,archive ... -Wl,-a,shared_archive
fi
else
AC_MSG_ERROR([Unable to locate libssl${SHLIB_SUFFIX}])
fi
else
TCLTLS_SSL_LIBS="-lcrypto -lssl"
fi
dnl Include config variables in --help list and make available to be substituted via AC_SUBST.
AC_ARG_VAR([TCLTLS_SSL_CFLAGS], [C compiler flags for OpenSSL or LibreSSL])
AC_ARG_VAR([TCLTLS_SSL_INCLUDES], [C compiler include paths for OpenSSL or LibreSSL])
AC_ARG_VAR([TCLTLS_SSL_LIBS], [libraries to pass to the linker for OpenSSL or LibreSSL])
dnl Set location of pkgconfig files
AC_ARG_WITH([openssl-pkgconfig],
AS_HELP_STRING([--with-openssl-pkgconfig=<dir>],
[path to root directory of OpenSSL or LibreSSL pkgconfigdir]
), [
opensslpkgconfigdir="$withval"
], [
opensslpkgconfigdir=''
]
)
AC_MSG_CHECKING([for OpenSSL pkgconfig])
AC_MSG_RESULT($opensslpkgconfigdir)
# Use Package Config tool to get config
pkgConfigExtraArgs=''
if test "${SHARED_BUILD}" == 0 -o "$TCLEXT_TLS_STATIC_SSL" = 'yes'; then
pkgConfigExtraArgs='--static'
fi
dnl Use pkg-config to find the libraries
if test -n "${PKG_CONFIG}"; then
dnl Temporarily update PKG_CONFIG_PATH
PKG_CONFIG_PATH_SAVE="${PKG_CONFIG_PATH}"
if test -n "${opensslpkgconfigdir}"; then
if ! test -f "${opensslpkgconfigdir}/openssl.pc"; then
AC_MSG_ERROR([Unable to locate ${opensslpkgconfigdir}/openssl.pc])
fi
PKG_CONFIG_PATH="${opensslpkgconfigdir}${PATH_SEPARATOR}${PKG_CONFIG_PATH}"
export PKG_CONFIG_PATH
fi
if test -z "$TCLTLS_SSL_LIBS"; then
TCLTLS_SSL_LIBS="`"${PKG_CONFIG}" openssl --libs $pkgConfigExtraArgs`" || AC_MSG_ERROR([Unable to get OpenSSL Configuration])
fi
if test -z "$TCLTLS_SSL_CFLAGS"; then
TCLTLS_SSL_CFLAGS="`"${PKG_CONFIG}" openssl --cflags-only-other $pkgConfigExtraArgs`" || AC_MSG_ERROR([Unable to get OpenSSL Configuration])
fi
if test -z "$TCLTLS_SSL_INCLUDES"; then
TCLTLS_SSL_INCLUDES="`"${PKG_CONFIG}" openssl --cflags-only-I $pkgConfigExtraArgs`" || AC_MSG_ERROR([Unable to get OpenSSL Configuration])
fi
PKG_CONFIG_PATH="${PKG_CONFIG_PATH_SAVE}"
fi
])