synced rhe text version
[platform/upstream/cryptsetup.git] / configure.in
index d0eb22f..8fa8df2 100644 (file)
@@ -1,9 +1,9 @@
 AC_PREREQ([2.67])
-AC_INIT([cryptsetup],[1.2.0-rc1])
+AC_INIT([cryptsetup],[1.4.0-cvs])
 
 dnl library version from <major>.<minor>.<release>[-<suffix>]
 LIBCRYPTSETUP_VERSION=$(echo $PACKAGE_VERSION | cut -f1 -d-)
-LIBCRYPTSETUP_VERSION_INFO=2:0:1
+LIBCRYPTSETUP_VERSION_INFO=4:0:0
 
 AC_CONFIG_SRCDIR(src/cryptsetup.c)
 AC_CONFIG_MACRO_DIR([m4])
@@ -39,9 +39,6 @@ AC_CHECK_LIB(uuid, uuid_clear, ,[AC_MSG_ERROR('You need the uuid library')])
 AC_SUBST(UUID_LIBS, $LIBS)
 LIBS=$saved_LIBS
 
-
-AM_PATH_LIBGCRYPT(1.1.42,,[AC_MSG_ERROR('You need the gcrypt library')])
-
 AC_CHECK_FUNCS([posix_memalign])
 
 AC_C_CONST
@@ -65,16 +62,90 @@ AC_SUBST(POPT_LIBS, $LIBS)
 LIBS=$saved_LIBS
 
 dnl ==========================================================================
+dnl Crypto backend functions
+
+AC_DEFUN([CONFIGURE_GCRYPT], [
+       AM_PATH_LIBGCRYPT(1.1.42,,[AC_MSG_ERROR('You need the gcrypt library')])
+
+       if test x$enable_static_cryptsetup = xyes; then
+               saved_LIBS=$LIBS
+               LIBS="$saved_LIBS $LIBGCRYPT_LIBS -static"
+               AC_CHECK_LIB(gcrypt, gcry_check_version,,
+                       AC_MSG_ERROR([Cannot find static gcrypt library.]),
+                       [-lgpg-error])
+               LIBGCRYPT_STATIC_LIBS="$LIBGCRYPT_LIBS -lgpg-error"
+               LIBS=$saved_LIBS
+        fi
+
+       CRYPTO_CFLAGS=$LIBGCRYPT_CFLAGS
+       CRYPTO_LIBS=$LIBGCRYPT_LIBS
+       CRYPTO_STATIC_LIBS=$LIBGCRYPT_STATIC_LIBS
+])
+
+AC_DEFUN([CONFIGURE_OPENSSL], [
+       PKG_CHECK_MODULES([OPENSSL], [openssl >= 0.9.8],,
+               AC_MSG_ERROR('You need openssl library'))
+       CRYPTO_CFLAGS=$OPENSSL_CFLAGS
+       CRYPTO_LIBS=$OPENSSL_LIBS
+
+       if test x$enable_static_cryptsetup = xyes; then
+               saved_PKG_CONFIG=$PKG_CONFIG
+               PKG_CONFIG="$PKG_CONFIG --static"
+               PKG_CHECK_MODULES([OPENSSL], [openssl])
+               CRYPTO_STATIC_LIBS=$OPENSSL_LIBS
+               PKG_CONFIG=$saved_PKG_CONFIG
+       fi
+])
+
+AC_DEFUN([CONFIGURE_NSS], [
+       if test x$enable_static_cryptsetup = xyes; then
+               AC_MSG_ERROR([Static build of cryptsetup is not supported with NSS.]),
+       fi
+
+       AC_MSG_WARN([NSS backend does NOT provide backward compatibility (missing ripemd160 hash).])
+
+       PKG_CHECK_MODULES([NSS], [nss],,
+               AC_MSG_ERROR('You need nss library'))
+       CRYPTO_CFLAGS=$NSS_CFLAGS
+       CRYPTO_LIBS=$NSS_LIBS
+])
+
+AC_DEFUN([CONFIGURE_KERNEL], [
+       AC_CHECK_HEADERS(linux/if_alg.h,,
+               [AC_MSG_ERROR('You need Linux kernel with userspace crypto interface.')])
+#      AC_CHECK_DECLS([AF_ALG],,
+#              [AC_MSG_ERROR('You need Linux kernel with userspace crypto interface.')],
+#              [#include <sys/socket.h>])
+
+])
+
+AC_DEFUN([CONFIGURE_NETTLE], [
+       AC_CHECK_HEADERS(nettle/sha.h,,
+               [AC_MSG_ERROR('You need Nettle cryptographic library.')])
+
+       saved_LIBS=$LIBS
+       AC_CHECK_LIB(nettle, nettle_sha512_init,,
+               [AC_MSG_ERROR('You need Nettle library version 2.1 or more recent.')])
+       CRYPTO_LIBS=$LIBS
+       LIBS=$saved_LIBS
+
+       AC_MSG_WARN([Nettle backend does NOT provide backward compatibility (missing ripemd160 hash).])
+
+       CRYPTO_STATIC_LIBS=$CRYPTO_LIBS
+])
+
+dnl ==========================================================================
 saved_LIBS=$LIBS
 
 AC_ARG_ENABLE([static-cryptsetup],
        AS_HELP_STRING([--enable-static-cryptsetup],
-       [enable build of static cryptsetup binary]), [
+       [enable build of static cryptsetup binary]))
+if test x$enable_static_cryptsetup = xyes; then
        if test x$enable_static = xno; then
                AC_MSG_WARN([Requested static cryptsetup build, enabling static library.])
                enable_static=yes
        fi
-       enable_static_cryptsetup=yes])
+fi
 AM_CONDITIONAL(STATIC_CRYPTSETUP, test x$enable_static_cryptsetup = xyes)
 
 AC_ARG_ENABLE(selinux,
@@ -96,6 +167,7 @@ PKG_CHECK_MODULES([DEVMAPPER], [devmapper >= 1.02.03],, [
 LIBS=$saved_LIBS
 
 LIBS="$LIBS $DEVMAPPER_LIBS"
+AC_CHECK_DECLS([dm_task_secure_data], [], [], [#include <libdevmapper.h>])
 AC_CHECK_DECLS([DM_UDEV_DISABLE_DISK_RULES_FLAG], [have_cookie=yes], [have_cookie=no], [#include <libdevmapper.h>])
 if test "x$enable_udev" = xyes; then
        if test "x$have_cookie" = xno; then
@@ -106,17 +178,30 @@ if test "x$enable_udev" = xyes; then
 fi
 LIBS=$saved_LIBS
 
+dnl Crypto backend configuration.
+AC_ARG_WITH([crypto_backend],
+       AS_HELP_STRING([--with-crypto_backend=BACKEND], [crypto backend (gcrypt/openssl/nss/kernel/nettle) [gcrypt]]),
+       [], with_crypto_backend=gcrypt
+)
+case $with_crypto_backend in
+       gcrypt)  CONFIGURE_GCRYPT([]) ;;
+       openssl) CONFIGURE_OPENSSL([]) ;;
+       nss)     CONFIGURE_NSS([]) ;;
+       kernel)  CONFIGURE_KERNEL([]) ;;
+       nettle)  CONFIGURE_NETTLE([]) ;;
+       *) AC_MSG_ERROR([Unknown crypto backend.]) ;;
+esac
+AM_CONDITIONAL(CRYPTO_BACKEND_GCRYPT,  test $with_crypto_backend = gcrypt)
+AM_CONDITIONAL(CRYPTO_BACKEND_OPENSSL, test $with_crypto_backend = openssl)
+AM_CONDITIONAL(CRYPTO_BACKEND_NSS,     test $with_crypto_backend = nss)
+AM_CONDITIONAL(CRYPTO_BACKEND_KERNEL,  test $with_crypto_backend = kernel)
+AM_CONDITIONAL(CRYPTO_BACKEND_NETTLE,  test $with_crypto_backend = nettle)
+
 dnl Magic for cryptsetup.static build.
 if test x$enable_static_cryptsetup = xyes; then
        saved_PKG_CONFIG=$PKG_CONFIG
        PKG_CONFIG="$PKG_CONFIG --static"
 
-       LIBS="$saved_LIBS $LIBGCRYPT_LIBS -static"
-       AC_CHECK_LIB(gcrypt, gcry_check_version,,
-               AC_MSG_ERROR([Cannot find static gcrypt library.]),
-               [-lgpg-error])
-       LIBGCRYPT_STATIC_LIBS="$LIBGCRYPT_LIBS -lgpg-error"
-
        LIBS="$saved_LIBS -static"
        AC_CHECK_LIB(popt, poptGetContext,,
                AC_MSG_ERROR([Cannot find static popt library.]))
@@ -141,7 +226,11 @@ fi
 
 AC_SUBST([DEVMAPPER_LIBS])
 AC_SUBST([DEVMAPPER_STATIC_LIBS])
-AC_SUBST([LIBGCRYPT_STATIC_LIBS])
+
+AC_SUBST([CRYPTO_CFLAGS])
+AC_SUBST([CRYPTO_LIBS])
+AC_SUBST([CRYPTO_STATIC_LIBS])
+
 AC_SUBST([LIBCRYPTSETUP_VERSION])
 AC_SUBST([LIBCRYPTSETUP_VERSION_INFO])
 
@@ -178,13 +267,20 @@ CS_STR_WITH([luks1-cipher], [cipher for LUKS1], [aes])
 CS_STR_WITH([luks1-mode],   [cipher mode for LUKS1], [cbc-essiv:sha256])
 CS_NUM_WITH([luks1-keybits],[key length in bits for LUKS1], [256])
 
+CS_STR_WITH([loopaes-cipher], [cipher for loop-AES mode], [aes])
+CS_NUM_WITH([loopaes-keybits],[key length in bits for loop-AES mode], [256])
+
+CS_NUM_WITH([keyfile-size-maxkb],[maximum keyfile size (in kilobytes)], [8192])
+CS_NUM_WITH([passphrase-size-max],[maximum keyfile size (in kilobytes)], [512])
 
 dnl ==========================================================================
 
 AC_CONFIG_FILES([ Makefile
 lib/Makefile
 lib/libcryptsetup.pc
+lib/crypto_backend/Makefile
 lib/luks1/Makefile
+lib/loopaes/Makefile
 src/Makefile
 po/Makefile.in
 man/Makefile