303 lines
9.0 KiB
Plaintext
303 lines
9.0 KiB
Plaintext
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# ===========================================================================
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# SYNOPSIS
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#
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# AX_NAGIOS_GET_SSL
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#
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# DESCRIPTION
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#
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# This macro finds the openssl binary, the header files directory and
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# the library files directory. It will also search for the gnutls
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# compatibility library/headers and the nss compatibility library/headers.
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#
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# LICENSE
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#
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# Copyright (c) 2016 Nagios Core Development Team
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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# ===========================================================================
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AU_ALIAS([AC_NAGIOS_GET_SSL], [AX_NAGIOS_GET_SSL])
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AC_DEFUN([AX_NAGIOS_GET_SSL],
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[
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# -------------------------------
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# SSL library and include paths
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# -------------------------------
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SSL_TYPE=openssl
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try_pkg_config=1
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ssl_dir=
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ssl_inc_dir=
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ssl_lib_dir=
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SSL_INC_DIR=
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SSL_INC_PREFIX=
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SSL_HDR=
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SSL_LIB_DIR=
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AC_SUBST(HAVE_SSL)
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AC_SUBST(SSL_INC_DIR)
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AC_SUBST(SSL_HDR)
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AC_SUBST(SSL_INC_PREFIX)
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AC_SUBST(SSL_LIB_DIR)
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# gnutls/openssl.h
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# nss_compat_ossl/nss_compat_ossl.h
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dnl # Which type - openssl, gnutls-openssl, nss
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dnl AC_ARG_WITH([ssl-type],
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dnl dnl AS_HELP_STRING([--with-ssl-type=TYPE],[replace TYPE with gnutls or nss to use one of these instead of openssl]),
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dnl AS_HELP_STRING([--with-ssl-type=TYPE],[replace TYPE with gnutls to use that instead of openssl]),
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dnl [SSL_TYPE=$withval])
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AC_ARG_WITH([ssl],
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AS_HELP_STRING([--with-ssl=DIR],[sets location of the SSL installation]),
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[ssl_dir=$withval])
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AC_ARG_WITH([ssl-inc],
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AS_HELP_STRING([--with-ssl-inc=DIR],
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[sets location of the SSL include files]),
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[ssl_inc_dir=$withval])
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AC_ARG_WITH([ssl-lib],
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AS_HELP_STRING([--with-ssl-lib=DIR],[sets location of the SSL libraries]),
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[ssl_lib_dir=$withval])
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if test x$ssl_inc_dir != x -o x$ssl_lib_dir != x; then
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try_pkg_config=0
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fi
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AC_ARG_WITH([kerberos-inc],
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AS_HELP_STRING([--with-kerberos-inc=DIR],
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[sets location of the Kerberos include files]),
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[kerberos_inc_dir=$withval])
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if test x$SSL_TYPE = xyes; then
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SSL_TYPE=openssl
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fi
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dflt_hdrs="$ssl_inc_dir $ssl_dir $ssl_inc_dir/include $ssl_dir/include \
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/usr/local/opt/{BBB} /usr/include/{BBB} /usr/local/include/{BBB} \
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/usr/local/{AAA} /usr/local/{BBB} /usr/lib/{AAA} /usr/lib/{BBB} \
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/usr/{AAA} /usr/pkg /usr/local /usr /usr/freeware/lib/{BBB} \
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/usr/sfw /usr/sfw/include /opt/{BBB}"
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dflt_libs="$ssl_lib_dir {ssldir} {ssldir}/lib {ssldir}/lib64 /usr/lib64 \
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/usr/lib /usr/lib/x86_64-linux-gnu /usr/lib/i386-linux-gnu \
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/usr/local/lib /usr/lib/{AAA} /usr/{AAA}/lib /usr/{BBB}/lib \
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/usr/pkg/lib /usr/freeware/lib/{BBB} /usr/sfw/lib /opt/freeware/lib \
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/opt/{BBB}/lib/hpux64 /opt/{BBB}/lib/pa20_64 /opt/{BBB}/lib/hpux32 \
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/opt/{BBB}/lib /opt/{BBB}";
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AS_CASE([$SSL_TYPE],
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[no], [SSL_TYPE=NONE],
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[yes|openssl],
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[ssl_hdr_dirs=`echo "$dflt_hdrs" | sed -e 's/{AAA}/ssl/g' | sed -e 's/{BBB}/openssl/g'`
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ssl_lib_dirs=`echo "$dflt_libs" | sed -e 's/{AAA}/ssl/g' | sed -e 's/{BBB}/openssl/g'`
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SSL_INC_PREFIX=openssl
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SSL_HDR=ssl.h
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ssl_lib=libssl],
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[gnutls],
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[ssl_hdr_dirs=`echo "$dflt_hdrs" | sed -e 's/{AAA}/gnutls/g' | sed -e 's/{BBB}/gnutls/g'`
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ssl_lib_dirs=`echo "$dflt_libs" | sed -e 's/{AAA}/gnutls/g' | sed -e 's/{BBB}/gnutls/g'`
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SSL_INC_PREFIX=gnutls
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SSL_TYPE=gnutls_compat
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SSL_HDR=compat.h
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ssl_lib=libgnutls],
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[nss],
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[ssl_hdr_dirs=`echo "$dflt_hdrs" | sed -e 's/{AAA}/nss_compat_ossl/g' | sed -e 's/{BBB}/nss_compat_ossl/g'`
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ssl_lib_dirs=`echo "$dflt_libs" | sed -e 's/{AAA}/nss_compat_ossl/g' | sed -e 's/{BBB}/nss_compat_ossl/g'`
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SSL_HDR=nss_compat_ossl.h
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ssl_lib=libnss_compat],
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[*], echo >&6; AC_MSG_ERROR(['--with-ssl-type=$SSL_TYPE' is invalid])
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)
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# Check for SSL support
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if test x$SSL_TYPE != xNONE; then
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found_ssl=no
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# RedHat 8.0 and 9.0 include openssl compiled with kerberos,
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# so we must include header file
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# Must come before openssl checks for Redhat EL 3
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AC_MSG_CHECKING(for Kerberos include files)
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found_kerberos=no
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for dir in $kerberos_inc_dir /usr/kerberos/include /usr/include/krb5 \
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/usr/include; do
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kerbdir="$dir"
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if test -f "$dir/krb5.h"; then
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found_kerberos=yes
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CFLAGS="$CFLAGS -I$kerbdir"
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AC_DEFINE_UNQUOTED(HAVE_KRB5_H,[1],[Have the krb5.h header file])
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break
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fi
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done
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if test x_$found_kerberos != x_yes; then
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AC_MSG_WARN(could not find include files)
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else
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AC_MSG_RESULT(found Kerberos include files in $kerbdir)
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fi
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# First, try using pkg_config
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AC_CHECK_TOOL([PKG_CONFIG], [pkg-config])
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if test x"$PKG_CONFIG" != x -a $try_pkg_config -ne 0 ; then
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cflags=`$PKG_CONFIG $SSL_TYPE --cflags-only-I 2>/dev/null`
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if test $? -eq 0; then
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CFLAGS="$CFLAGS $cflags"
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LDFLAGS="$LDFLAGS `$PKG_CONFIG $SSL_TYPE --libs-only-L 2>/dev/null`"
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LIBS="$LIBS `$PKG_CONFIG $SSL_TYPE --libs-only-l 2>/dev/null`"
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found_ssl=yes
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AC_DEFINE_UNQUOTED(HAVE_SSL,[1],[Have SSL support])
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fi
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fi
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if test x_$found_ssl != x_yes; then
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# Find the SSL Headers
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AC_MSG_CHECKING(for SSL headers)
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for dir in $ssl_hdr_dirs; do
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if test "$dir" = "/include"; then
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continue
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fi
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ssldir="$dir"
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if test -f "$dir/include/$SSL_INC_PREFIX/$SSL_HDR"; then
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found_ssl=yes
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CFLAGS="$CFLAGS -I$dir/include/$SSL_INC_PREFIX -I$ssldir/include"
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SSL_INC_DIR="$dir/include/$SSL_INC_PREFIX"
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break
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fi
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if test -f "$dir/include/$SSL_HDR"; then
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found_ssl=yes
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if test "$SSL_HDR" != compat.h ; then
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SSL_INC_PREFIX=""
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fi
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CFLAGS="$CFLAGS -I$dir/include"
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SSL_INC_DIR="$dir/include"
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break
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fi
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if test -f "$dir/$SSL_HDR"; then
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found_ssl=yes
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SSL_INC_PREFIX=""
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CFLAGS="$CFLAGS -I$dir"
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SSL_INC_DIR="$dir"
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break
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fi
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if test -f "$dir/$SSL_INC_PREFIX/$SSL_HDR"; then
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found_ssl=yes
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CFLAGS="$CFLAGS -I$dir/$SSL_INC_PREFIX"
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SSL_INC_DIR="$dir/$SSL_INC_PREFIX"
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ssldir="$dir/.."
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break
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fi
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done
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if test x_$found_ssl != x_yes; then
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AC_MSG_ERROR(Cannot find ssl headers)
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else
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AC_MSG_RESULT(found in $ssldir)
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# Now try and find SSL libraries
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AC_MSG_CHECKING(for SSL libraries)
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found_ssl=no
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ssl_lib_dirs=`echo "$ssl_lib_dirs" | sed -e "s|{ssldir}|$ssldir|g"`
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if test "`uname -s`" = "Darwin" ; then
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soext="dylib"
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elif test "`uname -s`" = "HP-UX" ; then
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if test x$arch = "xia64"; then
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soext="so"
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else
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soext="sl"
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fi
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elif test "`uname -s`" = "AIX" ; then
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soext="a"
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else
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soext="so"
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fi
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for dir in $ssl_lib_dirs; do
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if test -f "$dir/$ssl_lib.$soext"; then
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found_ssl=yes
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SSL_LIB_DIR="$dir"
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break
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fi
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done
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if test x_$found_ssl != x_yes; then
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AC_MSG_ERROR(Cannot find ssl libraries)
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else
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AC_MSG_RESULT(found in $SSL_LIB_DIR)
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LDFLAGS="$LDFLAGS -L$SSL_LIB_DIR";
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LIBS="$LIBS -l`echo $ssl_lib | sed -e 's/^lib//'` -lcrypto";
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AC_DEFINE_UNQUOTED(HAVE_SSL,[1],[Have SSL support])
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fi
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fi
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fi
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if test x$found_ssl = xyes ; then
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if test -n "$SSL_INC_PREFIX" ; then
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SSL_INC_PREFIX="${SSL_INC_PREFIX}/"
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fi
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# try to compile and link to see if SSL is set up properly
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AC_MSG_CHECKING([whether compiling and linking against SSL works])
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([#include <${SSL_INC_PREFIX}${SSL_HDR}>], [SSL_new(NULL)])],
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[
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AC_MSG_RESULT([yes])
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$1
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], [
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AC_MSG_ERROR([no])
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$2
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])
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fi
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if test x$found_ssl = xyes -a x$need_dh = xyes; then
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# Find the openssl program
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if test x$need_dh = xyes; then
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AC_PATH_PROG(sslbin,openssl,value-if-not-found,$ssl_dir/sbin$PATH_SEPARATOR$ssl_dir/bin$PATH_SEPARATOR$PATH)
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AC_DEFINE(USE_SSL_DH)
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# Generate DH parameters
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if test -f "$sslbin"; then
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echo ""
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echo "*** Generating DH Parameters for SSL/TLS ***"
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# awk to strip off meta data at bottom of dhparam output
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$sslbin dhparam -C 2048 | awk '/^-----/ {exit} {print}' > include/dh.h
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fi
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fi
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fi
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fi
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])
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