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$enable_static_cryptsetup = xyes; then
102 AC_MSG_ERROR([Static build of cryptsetup is not supported with NSS.]),
105 PKG_CHECK_MODULES([NSS], [nss],,
106 AC_MSG_ERROR('You need nss library'))
107 CRYPTO_CFLAGS=$NSS_CFLAGS
108 CRYPTO_LIBS=$NSS_LIBS
111 AC_DEFUN([CONFIGURE_KERNEL], [
112 AC_CHECK_HEADERS(linux/if_alg.h,,
113 [AC_MSG_ERROR('You need Linux kernel with userspace crypto interface.')])
114 # AC_CHECK_DECLS([AF_ALG],,
115 # [AC_MSG_ERROR('You need Linux kernel with userspace crypto interface.')],
116 # [#include <sys/socket.h>])
120 dnl ==========================================================================
123 AC_ARG_ENABLE([static-cryptsetup],
124 AS_HELP_STRING([--enable-static-cryptsetup],
125 [enable build of static cryptsetup binary]), [
126 if test x$enable_static = xno; then
127 AC_MSG_WARN([Requested static cryptsetup build, enabling static library.])
130 enable_static_cryptsetup=yes])
131 AM_CONDITIONAL(STATIC_CRYPTSETUP, test x$enable_static_cryptsetup = xyes)
133 AC_ARG_ENABLE(selinux,
134 AS_HELP_STRING([--disable-selinux],
135 [disable selinux support [default=auto]]),[], [])
137 AC_ARG_ENABLE([udev],
138 AS_HELP_STRING([--disable-udev],
139 [disable udev support]),[], enable_udev=yes)
141 dnl Try to use pkg-config for devmapper, but fallback to old detection
142 PKG_CHECK_MODULES([DEVMAPPER], [devmapper >= 1.02.03],, [
143 AC_CHECK_LIB(devmapper, dm_task_set_name,,
144 [AC_MSG_ERROR([You need the device-mapper library.])])
145 AC_CHECK_LIB(devmapper, dm_task_set_message,,
146 [AC_MSG_ERROR([The device-mapper library on your system is too old.])])
151 LIBS="$LIBS $DEVMAPPER_LIBS"
152 AC_CHECK_DECLS([DM_UDEV_DISABLE_DISK_RULES_FLAG], [have_cookie=yes], [have_cookie=no], [#include <libdevmapper.h>])
153 if test "x$enable_udev" = xyes; then
154 if test "x$have_cookie" = xno; then
155 AC_MSG_WARN([The device-mapper library on your system has no udev support, udev support disabled.])
157 AC_DEFINE(USE_UDEV, 1, [Try to use udev synchronisation?])
162 dnl Crypto backend configuration.
163 AC_ARG_WITH([crypto_backend],
164 AS_HELP_STRING([--with-crypto_backend], [crypto backend (gcrypt/openssl/nss/kernel) [gcrypt]]),
165 [], with_crypto_backend=gcrypt
167 case $with_crypto_backend in
168 gcrypt) CONFIGURE_GCRYPT([]) ;;
169 openssl) CONFIGURE_OPENSSL([]) ;;
170 nss) CONFIGURE_NSS([]) ;;
171 kernel) CONFIGURE_KERNEL([]) ;;
172 *) AC_MSG_ERROR([Unknown crypto backend.]) ;;
174 AM_CONDITIONAL(CRYPTO_BACKEND_GCRYPT, test $with_crypto_backend = gcrypt)
175 AM_CONDITIONAL(CRYPTO_BACKEND_OPENSSL, test $with_crypto_backend = openssl)
176 AM_CONDITIONAL(CRYPTO_BACKEND_NSS, test $with_crypto_backend = nss)
177 AM_CONDITIONAL(CRYPTO_BACKEND_KERNEL, test $with_crypto_backend = kernel)
179 dnl Magic for cryptsetup.static build.
180 if test x$enable_static_cryptsetup = xyes; then
181 saved_PKG_CONFIG=$PKG_CONFIG
182 PKG_CONFIG="$PKG_CONFIG --static"
184 LIBS="$saved_LIBS -static"
185 AC_CHECK_LIB(popt, poptGetContext,,
186 AC_MSG_ERROR([Cannot find static popt library.]))
188 dnl Try to detect needed device-mapper static libraries, try pkg-config first.
189 LIBS="$saved_LIBS -static"
190 PKG_CHECK_MODULES([DEVMAPPER_STATIC], [devmapper >= 1.02.27],,[
191 DEVMAPPER_STATIC_LIBS=$DEVMAPPER_LIBS
192 if test "x$enable_selinux" != xno; then
193 AC_CHECK_LIB(sepol, sepol_bool_set)
194 AC_CHECK_LIB(selinux, is_selinux_enabled)
195 DEVMAPPER_STATIC_LIBS="$DEVMAPPER_STATIC_LIBS $LIBS"
198 LIBS="$saved_LIBS $DEVMAPPER_STATIC_LIBS"
199 AC_CHECK_LIB(devmapper, dm_task_set_uuid,,
200 AC_MSG_ERROR([Cannot link with static device-mapper library.]))
203 PKG_CONFIG=$saved_PKG_CONFIG
206 AC_SUBST([DEVMAPPER_LIBS])
207 AC_SUBST([DEVMAPPER_STATIC_LIBS])
209 AC_SUBST([CRYPTO_CFLAGS])
210 AC_SUBST([CRYPTO_LIBS])
211 AC_SUBST([CRYPTO_STATIC_LIBS])
213 AC_SUBST([LIBCRYPTSETUP_VERSION])
214 AC_SUBST([LIBCRYPTSETUP_VERSION_INFO])
216 dnl ==========================================================================
217 AC_ARG_ENABLE([dev-random], AS_HELP_STRING([--enable-dev-random],
218 [use blocking /dev/random by default for key generator (otherwise use /dev/urandom)]),
219 [default_rng=/dev/random], [default_rng=/dev/urandom])
220 AC_DEFINE_UNQUOTED(DEFAULT_RNG, ["$default_rng"], [default RNG type for key generator])
222 dnl ==========================================================================
223 AC_DEFUN([CS_DEFINE],
224 [AC_DEFINE_UNQUOTED(DEFAULT_[]m4_translit([$1], [-a-z], [_A-Z]), [$2], [$3])
227 AC_DEFUN([CS_STR_WITH], [AC_ARG_WITH([$1],
228 [AS_HELP_STRING(--with-[$1], [default $2 [$3]])],
229 [CS_DEFINE([$1], ["$withval"], [$2])],
230 [CS_DEFINE([$1], ["$3"], [$2])]
233 AC_DEFUN([CS_NUM_WITH], [AC_ARG_WITH([$1],
234 [AS_HELP_STRING(--with-[$1], [default $2 [$3]])],
235 [CS_DEFINE([$1], [$withval], [$2])],
236 [CS_DEFINE([$1], [$3], [$2])]
239 CS_STR_WITH([plain-hash], [password hashing function for plain mode], [ripemd160])
240 CS_STR_WITH([plain-cipher], [cipher for plain mode], [aes])
241 CS_STR_WITH([plain-mode], [cipher mode for plain mode], [cbc-essiv:sha256])
242 CS_NUM_WITH([plain-keybits],[key length in bits for plain mode], [256])
244 CS_STR_WITH([luks1-hash], [hash function for LUKS1 header], [sha1])
245 CS_STR_WITH([luks1-cipher], [cipher for LUKS1], [aes])
246 CS_STR_WITH([luks1-mode], [cipher mode for LUKS1], [cbc-essiv:sha256])
247 CS_NUM_WITH([luks1-keybits],[key length in bits for LUKS1], [256])
250 dnl ==========================================================================
252 AC_CONFIG_FILES([ Makefile
255 lib/crypto_backend/Makefile