2 AC_INIT([cryptsetup],[1.2.0])
4 dnl library version from <major>.<minor>.<release>[-<suffix>]
5 LIBCRYPTSETUP_VERSION=$(echo $PACKAGE_VERSION | cut -f1 -d-)
6 LIBCRYPTSETUP_VERSION_INFO=2:0:1
8 AC_CONFIG_SRCDIR(src/cryptsetup.c)
9 AC_CONFIG_MACRO_DIR([m4])
11 AC_CONFIG_HEADERS([config.h:config.h.in])
12 AM_INIT_AUTOMAKE(dist-bzip2)
14 if test "x$prefix" = "xNONE"; then
17 AC_PREFIX_DEFAULT(/usr)
20 AC_USE_SYSTEM_EXTENSIONS
31 AC_CHECK_HEADERS(fcntl.h malloc.h inttypes.h sys/ioctl.h sys/mman.h \
32 ctype.h unistd.h locale.h)
34 AC_CHECK_HEADERS(uuid/uuid.h,,[AC_MSG_ERROR('You need the uuid library')])
35 AC_CHECK_HEADER(libdevmapper.h,,[AC_MSG_ERROR('You need the device-mapper library')])
38 AC_CHECK_LIB(uuid, uuid_clear, ,[AC_MSG_ERROR('You need the uuid library')])
39 AC_SUBST(UUID_LIBS, $LIBS)
42 AC_CHECK_FUNCS([posix_memalign])
49 AC_PROG_GCC_TRADITIONAL
51 dnl ==========================================================================
53 AM_GNU_GETTEXT([external],[need-ngettext])
54 AM_GNU_GETTEXT_VERSION([0.15])
56 dnl ==========================================================================
59 AC_CHECK_LIB(popt, poptConfigFileToString,,
60 [AC_MSG_ERROR([You need popt 1.7 or newer to compile.])])
61 AC_SUBST(POPT_LIBS, $LIBS)
64 dnl ==========================================================================
65 dnl Crypto backend functions
67 AC_DEFUN([CONFIGURE_GCRYPT], [
68 AM_PATH_LIBGCRYPT(1.1.42,,[AC_MSG_ERROR('You need the gcrypt library')])
70 if test x$enable_static_cryptsetup = xyes; then
72 LIBS="$saved_LIBS $LIBGCRYPT_LIBS -static"
73 AC_CHECK_LIB(gcrypt, gcry_check_version,,
74 AC_MSG_ERROR([Cannot find static gcrypt library.]),
76 LIBGCRYPT_STATIC_LIBS="$LIBGCRYPT_LIBS -lgpg-error"
80 CRYPTO_CFLAGS=$LIBGCRYPT_CFLAGS
81 CRYPTO_LIBS=$LIBGCRYPT_LIBS
82 CRYPTO_STATIC_LIBS=$LIBGCRYPT_STATIC_LIBS
85 AC_DEFUN([CONFIGURE_OPENSSL], [
86 PKG_CHECK_MODULES([OPENSSL], [openssl >= 0.9.8],,
87 AC_MSG_ERROR('You need openssl library'))
88 CRYPTO_CFLAGS=$OPENSSL_CFLAGS
89 CRYPTO_LIBS=$OPENSSL_LIBS
91 if test x$enable_static_cryptsetup = xyes; then
92 saved_PKG_CONFIG=$PKG_CONFIG
93 PKG_CONFIG="$PKG_CONFIG --static"
94 PKG_CHECK_MODULES([OPENSSL], [openssl])
95 CRYPTO_STATIC_LIBS=$OPENSSL_LIBS
96 PKG_CONFIG=$saved_PKG_CONFIG
100 AC_DEFUN([CONFIGURE_NSS], [
101 if test x$enable_static_cryptsetup = xyes; then
102 AC_MSG_ERROR([Static build of cryptsetup is not supported with NSS.]),
105 AC_MSG_WARN([NSS backend does NOT provide backward compatibility (missing ripemd160 hash).])
107 PKG_CHECK_MODULES([NSS], [nss],,
108 AC_MSG_ERROR('You need nss library'))
109 CRYPTO_CFLAGS=$NSS_CFLAGS
110 CRYPTO_LIBS=$NSS_LIBS
113 AC_DEFUN([CONFIGURE_KERNEL], [
114 AC_CHECK_HEADERS(linux/if_alg.h,,
115 [AC_MSG_ERROR('You need Linux kernel with userspace crypto interface.')])
116 # AC_CHECK_DECLS([AF_ALG],,
117 # [AC_MSG_ERROR('You need Linux kernel with userspace crypto interface.')],
118 # [#include <sys/socket.h>])
122 dnl ==========================================================================
125 AC_ARG_ENABLE([static-cryptsetup],
126 AS_HELP_STRING([--enable-static-cryptsetup],
127 [enable build of static cryptsetup binary]), [
128 if test x$enable_static = xno; then
129 AC_MSG_WARN([Requested static cryptsetup build, enabling static library.])
132 enable_static_cryptsetup=yes])
133 AM_CONDITIONAL(STATIC_CRYPTSETUP, test x$enable_static_cryptsetup = xyes)
135 AC_ARG_ENABLE(selinux,
136 AS_HELP_STRING([--disable-selinux],
137 [disable selinux support [default=auto]]),[], [])
139 AC_ARG_ENABLE([udev],
140 AS_HELP_STRING([--disable-udev],
141 [disable udev support]),[], enable_udev=yes)
143 dnl Try to use pkg-config for devmapper, but fallback to old detection
144 PKG_CHECK_MODULES([DEVMAPPER], [devmapper >= 1.02.03],, [
145 AC_CHECK_LIB(devmapper, dm_task_set_name,,
146 [AC_MSG_ERROR([You need the device-mapper library.])])
147 AC_CHECK_LIB(devmapper, dm_task_set_message,,
148 [AC_MSG_ERROR([The device-mapper library on your system is too old.])])
153 LIBS="$LIBS $DEVMAPPER_LIBS"
154 AC_CHECK_DECLS([DM_UDEV_DISABLE_DISK_RULES_FLAG], [have_cookie=yes], [have_cookie=no], [#include <libdevmapper.h>])
155 if test "x$enable_udev" = xyes; then
156 if test "x$have_cookie" = xno; then
157 AC_MSG_WARN([The device-mapper library on your system has no udev support, udev support disabled.])
159 AC_DEFINE(USE_UDEV, 1, [Try to use udev synchronisation?])
164 dnl Crypto backend configuration.
165 AC_ARG_WITH([crypto_backend],
166 AS_HELP_STRING([--with-crypto_backend=BACKEND], [crypto backend (gcrypt/openssl/nss/kernel) [gcrypt]]),
167 [], with_crypto_backend=gcrypt
169 case $with_crypto_backend in
170 gcrypt) CONFIGURE_GCRYPT([]) ;;
171 openssl) CONFIGURE_OPENSSL([]) ;;
172 nss) CONFIGURE_NSS([]) ;;
173 kernel) CONFIGURE_KERNEL([]) ;;
174 *) AC_MSG_ERROR([Unknown crypto backend.]) ;;
176 AM_CONDITIONAL(CRYPTO_BACKEND_GCRYPT, test $with_crypto_backend = gcrypt)
177 AM_CONDITIONAL(CRYPTO_BACKEND_OPENSSL, test $with_crypto_backend = openssl)
178 AM_CONDITIONAL(CRYPTO_BACKEND_NSS, test $with_crypto_backend = nss)
179 AM_CONDITIONAL(CRYPTO_BACKEND_KERNEL, test $with_crypto_backend = kernel)
181 dnl Magic for cryptsetup.static build.
182 if test x$enable_static_cryptsetup = xyes; then
183 saved_PKG_CONFIG=$PKG_CONFIG
184 PKG_CONFIG="$PKG_CONFIG --static"
186 LIBS="$saved_LIBS -static"
187 AC_CHECK_LIB(popt, poptGetContext,,
188 AC_MSG_ERROR([Cannot find static popt library.]))
190 dnl Try to detect needed device-mapper static libraries, try pkg-config first.
191 LIBS="$saved_LIBS -static"
192 PKG_CHECK_MODULES([DEVMAPPER_STATIC], [devmapper >= 1.02.27],,[
193 DEVMAPPER_STATIC_LIBS=$DEVMAPPER_LIBS
194 if test "x$enable_selinux" != xno; then
195 AC_CHECK_LIB(sepol, sepol_bool_set)
196 AC_CHECK_LIB(selinux, is_selinux_enabled)
197 DEVMAPPER_STATIC_LIBS="$DEVMAPPER_STATIC_LIBS $LIBS"
200 LIBS="$saved_LIBS $DEVMAPPER_STATIC_LIBS"
201 AC_CHECK_LIB(devmapper, dm_task_set_uuid,,
202 AC_MSG_ERROR([Cannot link with static device-mapper library.]))
205 PKG_CONFIG=$saved_PKG_CONFIG
208 AC_SUBST([DEVMAPPER_LIBS])
209 AC_SUBST([DEVMAPPER_STATIC_LIBS])
211 AC_SUBST([CRYPTO_CFLAGS])
212 AC_SUBST([CRYPTO_LIBS])
213 AC_SUBST([CRYPTO_STATIC_LIBS])
215 AC_SUBST([LIBCRYPTSETUP_VERSION])
216 AC_SUBST([LIBCRYPTSETUP_VERSION_INFO])
218 dnl ==========================================================================
219 AC_ARG_ENABLE([dev-random], AS_HELP_STRING([--enable-dev-random],
220 [use blocking /dev/random by default for key generator (otherwise use /dev/urandom)]),
221 [default_rng=/dev/random], [default_rng=/dev/urandom])
222 AC_DEFINE_UNQUOTED(DEFAULT_RNG, ["$default_rng"], [default RNG type for key generator])
224 dnl ==========================================================================
225 AC_DEFUN([CS_DEFINE],
226 [AC_DEFINE_UNQUOTED(DEFAULT_[]m4_translit([$1], [-a-z], [_A-Z]), [$2], [$3])
229 AC_DEFUN([CS_STR_WITH], [AC_ARG_WITH([$1],
230 [AS_HELP_STRING(--with-[$1], [default $2 [$3]])],
231 [CS_DEFINE([$1], ["$withval"], [$2])],
232 [CS_DEFINE([$1], ["$3"], [$2])]
235 AC_DEFUN([CS_NUM_WITH], [AC_ARG_WITH([$1],
236 [AS_HELP_STRING(--with-[$1], [default $2 [$3]])],
237 [CS_DEFINE([$1], [$withval], [$2])],
238 [CS_DEFINE([$1], [$3], [$2])]
241 CS_STR_WITH([plain-hash], [password hashing function for plain mode], [ripemd160])
242 CS_STR_WITH([plain-cipher], [cipher for plain mode], [aes])
243 CS_STR_WITH([plain-mode], [cipher mode for plain mode], [cbc-essiv:sha256])
244 CS_NUM_WITH([plain-keybits],[key length in bits for plain mode], [256])
246 CS_STR_WITH([luks1-hash], [hash function for LUKS1 header], [sha1])
247 CS_STR_WITH([luks1-cipher], [cipher for LUKS1], [aes])
248 CS_STR_WITH([luks1-mode], [cipher mode for LUKS1], [cbc-essiv:sha256])
249 CS_NUM_WITH([luks1-keybits],[key length in bits for LUKS1], [256])
252 dnl ==========================================================================
254 AC_CONFIG_FILES([ Makefile
257 lib/crypto_backend/Makefile