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463 lines
13 KiB
463 lines
13 KiB
From 8d5360e3e5eea3c9dbfd44f9b981f18a41605e45 Mon Sep 17 00:00:00 2001
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From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
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Date: Sun, 9 Mar 2014 11:30:25 +0100
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Subject: [PATCH 2/5] Added option to use mini-gmp in hogweed.
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---
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Makefile.in | 8 +++--
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bignum.h | 6 +++-
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configure.ac | 76 +++++++++++++++++++++++++++++++++++-------------
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dsa.h | 2 +-
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ecc-internal.h | 2 +-
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ecc.h | 2 +-
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eccdata.c | 12 +++++++-
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examples/Makefile.in | 2 +-
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examples/ecc-benchmark.c | 2 ++
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gmp-glue.c | 1 +
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gmp-glue.h | 2 +-
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hogweed.pc.in | 2 +-
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mini-gmp.c | 2 +-
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mini-gmp.h | 9 ++++++
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pkcs1.h | 2 +-
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rsa.h | 2 +-
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testsuite/Makefile.in | 4 +--
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testsuite/testutils.h | 5 ++--
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18 files changed, 102 insertions(+), 39 deletions(-)
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diff --git a/Makefile.in b/Makefile.in
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index 3b0e1cb..42be3a9 100644
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -16,6 +16,10 @@ MKDIR_P = @MKDIR_P@
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OPT_ASM_SOURCES = @OPT_ASM_SOURCES@
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+OPT_HOGWEED_SOURCES = @OPT_HOGWEED_SOURCES@
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+
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+OPT_HOGWEED_HEADERS = @OPT_HOGWEED_HEADERS@
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+
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SUBDIRS = tools testsuite examples
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include config.make
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@@ -106,7 +110,7 @@ nettle_SOURCES = aes-decrypt-internal.c aes-decrypt.c \
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nettle-meta-armors.c \
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write-be32.c write-le32.c write-le64.c
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-hogweed_SOURCES = sexp.c sexp-format.c \
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+hogweed_SOURCES = $(OPT_HOGWEED_SOURCES) sexp.c sexp-format.c \
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sexp-transport.c sexp-transport-format.c \
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bignum.c bignum-next-prime.c \
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bignum-random.c bignum-random-prime.c \
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@@ -156,7 +160,7 @@ HEADERS = aes.h arcfour.h arctwo.h asn1.h bignum.h blowfish.h \
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pgp.h pkcs1.h realloc.h ripemd160.h rsa.h rsa-compat.h \
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salsa20.h sexp.h \
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serpent.h sha.h sha1.h sha2.h sha3.h twofish.h \
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- umac.h yarrow.h
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+ umac.h yarrow.h $(OPT_HOGWEED_HEADERS)
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INSTALL_HEADERS = $(HEADERS) nettle-stdint.h
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diff --git a/bignum.h b/bignum.h
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index 746b21f..1f2ff07 100644
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--- a/bignum.h
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+++ b/bignum.h
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@@ -28,7 +28,11 @@
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#include "nettle-meta.h"
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-#include <gmp.h>
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+#ifdef USE_MINI_GMP
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+# include "mini-gmp.h"
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+#else
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+# include <gmp.h>
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+#endif
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#include "nettle-types.h"
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#ifdef __cplusplus
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diff --git a/configure.ac b/configure.ac
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index 78a3d4e..93eb09a 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -72,6 +72,16 @@ AC_ARG_ENABLE(arm-neon,
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AC_HELP_STRING([--enable-arm-neon], [Enable ARM Neon assembly. (default=auto)]),,
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[enable_arm_neon=auto])
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+AC_ARG_ENABLE(mini-gmp,
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+ AC_HELP_STRING([--enable-mini-gmp], [Disable gmp support and enable mini-gmp. (default=disabled)]),,
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+ [enable_mini_gmp=no])
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+
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+if test "x$enable_mini_gmp" = xyes ; then
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+GMP_LIBS=""
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+else
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+GMP_LIBS="-lgmp"
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+fi
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+
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LSH_RPATH_INIT([`echo $with_lib_path | sed 's/:/ /g'` \
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`echo $exec_prefix | sed "s@^NONE@$prefix/lib@g" | sed "s@^NONE@$ac_default_prefix/lib@g"` \
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/usr/local/lib /sw/local/lib /sw/lib \
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@@ -409,7 +419,7 @@ case "$host_os" in
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LIBHOGWEED_SONAME='libhogweed.$(LIBHOGWEED_MAJOR).dylib'
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LIBHOGWEED_FILE='libhogweed.$(LIBHOGWEED_MAJOR).$(LIBHOGWEED_MINOR).dylib'
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LIBHOGWEED_LINK='$(CC) $(CFLAGS) -dynamiclib -L. $(LDFLAGS) -install_name ${libdir}/$(LIBHOGWEED_SONAME) -compatibility_version $(LIBHOGWEED_MAJOR) -current_version $(LIBHOGWEED_MAJOR).$(LIBHOGWEED_MINOR)'
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- LIBHOGWEED_LIBS='-lnettle -lgmp'
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+ LIBHOGWEED_LIBS='-lnettle $(GMP_LIBS)'
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;;
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solaris*)
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# Sun's ld uses -h to set the soname, and this option is passed
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@@ -425,7 +435,7 @@ case "$host_os" in
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LIBHOGWEED_SONAME='$(LIBHOGWEED_FORLINK).$(LIBHOGWEED_MAJOR)'
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LIBHOGWEED_FILE='$(LIBHOGWEED_SONAME).$(LIBHOGWEED_MINOR)'
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LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -L. -G -h $(LIBHOGWEED_SONAME)'
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- LIBHOGWEED_LIBS='-lnettle -lgmp'
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+ LIBHOGWEED_LIBS='-lnettle $(GMP_LIBS)'
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;;
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*)
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LIBNETTLE_FORLINK=libnettle.so
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@@ -443,7 +453,7 @@ case "$host_os" in
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# -lhogweed -lgmp -lnettle are still required). Also makes dlopen
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# of libhogweed.so work, without having to use RTLD_GLOBAL.
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# Depends on -L. above, to locate nettle.so.
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- LIBHOGWEED_LIBS='-lnettle -lgmp'
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+ LIBHOGWEED_LIBS='-lnettle $(GMP_LIBS)'
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;;
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esac
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@@ -644,32 +654,55 @@ if test "x$nettle_cv_fcntl_locking" = "xyes" ; then
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AC_DEFINE(HAVE_FCNTL_LOCKING)
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fi
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-# Checks for libraries
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-AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
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- [AC_MSG_WARN(
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+TESTSUITE_LIBS=""
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+
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+OPT_HOGWEED_SOURCES=""
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+OPT_HOGWEED_HEADERS=""
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+if test "x$enable_mini_gmp" = xyes ; then
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+ OPT_HOGWEED_SOURCES="$OPT_HOGWEED_SOURCES mini-gmp.c"
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+ OPT_HOGWEED_HEADERS="$OPT_HOGWEED_HEADERS mini-gmp.h"
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+ AC_DEFINE([USE_MINI_GMP], 1, [Use mini-gmp instead of gmp])
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+ IF_NOT_MINI_GMP='#'
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+ GMP_NUMB_BITS="0"
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+else
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+
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+ # Checks for libraries
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+ AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
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+ [AC_MSG_WARN(
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[GNU MP not found, or not 3.1 or up, see http://gmplib.org/.
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Support for public key algorithms will be unavailable.])]
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- enable_public_key=no)
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+ enable_public_key=no)
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-# Add -R flags needed to run programs linked with gmp
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-LSH_RPATH_FIX
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+ # Add -R flags needed to run programs linked with gmp
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+ LSH_RPATH_FIX
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-# Check for gmp limb size
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-nettle_cv_gmp_numb_bits=0
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-if test "$enable_public_key" = yes; then
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- AC_MSG_CHECKING([for GMP limb size])
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- AC_COMPUTE_INT(nettle_cv_gmp_numb_bits, [GMP_NUMB_BITS],
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- [#include <gmp.h>],
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- [AC_MSG_FAILURE([cannot find value of GMP_NUMB_BITS])])
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+ # Check for gmp limb size
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+ nettle_cv_gmp_numb_bits=0
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+ if test "$enable_public_key" = yes; then
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+ AC_MSG_CHECKING([for GMP limb size])
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+ AC_COMPUTE_INT(nettle_cv_gmp_numb_bits, [GMP_NUMB_BITS],
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+ [#include <gmp.h>],
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+ [AC_MSG_FAILURE([cannot find value of GMP_NUMB_BITS])])
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- AC_MSG_RESULT([$nettle_cv_gmp_numb_bits bits])
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+ AC_MSG_RESULT([$nettle_cv_gmp_numb_bits bits])
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+ fi
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+
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+ GMP_NUMB_BITS="$nettle_cv_gmp_numb_bits"
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+
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+ AH_TEMPLATE([HAVE_MPZ_POWM_SEC], [Define if mpz_powm_sec is available (appeared in GMP-5)])
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+ AC_CHECK_FUNC(__gmpz_powm_sec, [AC_DEFINE(HAVE_MPZ_POWM_SEC)])
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+
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+ IF_NOT_MINI_GMP=''
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+ TESTSUITE_LIBS="-lgmp"
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fi
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-GMP_NUMB_BITS="$nettle_cv_gmp_numb_bits"
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-AC_SUBST([GMP_NUMB_BITS])
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+AC_SUBST([GMP_LIBS])
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-AH_TEMPLATE([HAVE_MPZ_POWM_SEC], [Define if mpz_powm_sec is available (appeared in GMP-5)])
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-AC_CHECK_FUNC(__gmpz_powm_sec, [AC_DEFINE(HAVE_MPZ_POWM_SEC)])
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+dnl The testsuite requires gmp
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+AC_SUBST([TESTSUITE_LIBS])
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+AC_SUBST([GMP_NUMB_BITS])
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+AC_SUBST([OPT_HOGWEED_SOURCES])
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+AC_SUBST([OPT_HOGWEED_HEADERS])
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AH_TEMPLATE([WITH_HOGWEED], [Defined if public key features are enabled])
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@@ -714,6 +747,7 @@ else
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IF_DOCUMENTATION='#'
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fi
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+AC_SUBST(IF_NOT_MINI_GMP)
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AC_SUBST(IF_HOGWEED)
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AC_SUBST(IF_STATIC)
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AC_SUBST(IF_SHARED)
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diff --git a/dsa.h b/dsa.h
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index 7ee2624..478e4fc 100644
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--- a/dsa.h
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+++ b/dsa.h
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@@ -26,7 +26,7 @@
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#ifndef NETTLE_DSA_H_INCLUDED
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#define NETTLE_DSA_H_INCLUDED
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-#include <gmp.h>
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+#include "bignum.h"
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#include "nettle-types.h"
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diff --git a/ecc-internal.h b/ecc-internal.h
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index e8974fe..5cdd0e1 100644
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--- a/ecc-internal.h
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+++ b/ecc-internal.h
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@@ -25,7 +25,7 @@
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#ifndef NETTLE_ECC_INTERNAL_H_INCLUDED
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#define NETTLE_ECC_INTERNAL_H_INCLUDED
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-#include <gmp.h>
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+#include "bignum.h"
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#include "nettle-types.h"
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#include "ecc-curve.h"
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diff --git a/ecc.h b/ecc.h
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index 609d246..924f8ec 100644
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--- a/ecc.h
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+++ b/ecc.h
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@@ -25,7 +25,7 @@
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#ifndef NETTLE_ECC_H_INCLUDED
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#define NETTLE_ECC_H_INCLUDED
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-#include <gmp.h>
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+#include "bignum.h"
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#include "nettle-types.h"
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diff --git a/eccdata.c b/eccdata.c
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index 466753c..24f64e3 100644
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--- a/eccdata.c
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+++ b/eccdata.c
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@@ -24,11 +24,14 @@
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/* Development of Nettle's ECC support was funded by the .SE Internet Fund. */
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+#include "config.h"
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+
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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+#include "mini-gmp.h"
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#include "mini-gmp.c"
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/* Affine coordinates, for simplicity. Infinity point represented as x
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@@ -895,6 +898,7 @@ int
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main (int argc, char **argv)
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{
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struct ecc_curve ecc;
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+ unsigned bits;
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if (argc < 4)
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{
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@@ -902,6 +906,7 @@ main (int argc, char **argv)
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return EXIT_FAILURE;
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}
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+ bits = atoi(argv[4]);
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ecc_curve_init (&ecc, atoi(argv[1]));
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ecc_pippenger_precompute (&ecc, atoi(argv[2]), atoi(argv[3]));
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@@ -912,7 +917,12 @@ main (int argc, char **argv)
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ecc_curve_check (&ecc);
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if (argc > 4)
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- output_curve (&ecc, atoi(argv[4]));
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+ {
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+ /* when using mini-gmp we cannot estimate it on configure */
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+ if (bits == 0)
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+ bits = GMP_NUMB_BITS;
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+ output_curve (&ecc, bits);
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+ }
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return EXIT_SUCCESS;
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}
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diff --git a/examples/Makefile.in b/examples/Makefile.in
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index 563d0dc..2bb0436 100644
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--- a/examples/Makefile.in
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+++ b/examples/Makefile.in
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@@ -11,7 +11,7 @@ PRE_CPPFLAGS = -I.. -I$(top_srcdir)
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PRE_LDFLAGS = -L..
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OPENSSL_LIBFLAGS = @OPENSSL_LIBFLAGS@
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-BENCH_LIBS = @BENCH_LIBS@ -lm
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+BENCH_LIBS = @BENCH_LIBS@ $(TESTSUITE_LIBS) -lm
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HOGWEED_TARGETS = rsa-keygen$(EXEEXT) rsa-sign$(EXEEXT) \
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rsa-verify$(EXEEXT) rsa-encrypt$(EXEEXT) rsa-decrypt$(EXEEXT) \
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diff --git a/examples/ecc-benchmark.c b/examples/ecc-benchmark.c
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index 1faf6dc..16a1fd6 100644
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--- a/examples/ecc-benchmark.c
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+++ b/examples/ecc-benchmark.c
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@@ -37,6 +37,8 @@
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#include "timing.h"
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+#undef USE_MINI_GMP
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+#include <gmp.h>
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#include "../ecc.h"
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#include "../ecc-internal.h"
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#include "../gmp-glue.h"
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diff --git a/gmp-glue.c b/gmp-glue.c
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index a2633a5..d76fdea 100644
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--- a/gmp-glue.c
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+++ b/gmp-glue.c
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@@ -239,3 +239,4 @@ gmp_free_limbs (mp_limb_t *p, mp_size_t n)
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free_func (p, (size_t) n * sizeof(mp_limb_t));
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}
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+
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diff --git a/gmp-glue.h b/gmp-glue.h
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index 269667f..f51b5b5 100644
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--- a/gmp-glue.h
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+++ b/gmp-glue.h
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@@ -23,7 +23,7 @@
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#ifndef NETTLE_GMP_GLUE_H_INCLUDED
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#define NETTLE_GMP_GLUE_H_INCLUDED
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-#include <gmp.h>
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+#include "bignum.h"
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#include "nettle-stdint.h"
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diff --git a/hogweed.pc.in b/hogweed.pc.in
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index 457f5f2..9a9dea0 100644
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--- a/hogweed.pc.in
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+++ b/hogweed.pc.in
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@@ -13,6 +13,6 @@ URL: http://www.lysator.liu.se/~nisse/nettle
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Version: @PACKAGE_VERSION@
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Requires.private: nettle
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Libs: -L${libdir} -lhogweed
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-Libs.private: -lgmp
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+Libs.private: @GMP_LIBS@
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Cflags: -I${includedir}
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diff --git a/mini-gmp.c b/mini-gmp.c
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index 766df30..cf76a2a 100644
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--- a/mini-gmp.c
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+++ b/mini-gmp.c
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@@ -1388,7 +1388,7 @@ mpz_clear (mpz_t r)
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gmp_free (r->_mp_d);
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}
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-static void *
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+void *
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mpz_realloc (mpz_t r, mp_size_t size)
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{
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size = GMP_MAX (size, 1);
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diff --git a/mini-gmp.h b/mini-gmp.h
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index d8f691f..dac7d1e 100644
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--- a/mini-gmp.h
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+++ b/mini-gmp.h
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@@ -70,6 +70,11 @@ typedef struct
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mp_limb_t *_mp_d; /* Pointer to the limbs. */
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} __mpz_struct;
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+typedef __mpz_struct MP_INT;
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+
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+#define GMP_NUMB_BITS (SIZEOF_LONG*8)
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+#define GMP_NUMB_MASK (~0)
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+
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typedef __mpz_struct mpz_t[1];
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typedef __mpz_struct *mpz_ptr;
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@@ -119,6 +124,10 @@ void mpz_init (mpz_t);
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void mpz_init2 (mpz_t, mp_bitcnt_t);
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void mpz_clear (mpz_t);
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+void *
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+mpz_realloc (mpz_t r, mp_size_t size);
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+#define _mpz_realloc mpz_realloc
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+
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#define mpz_odd_p(z) (((z)->_mp_size != 0) & (int) (z)->_mp_d[0])
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#define mpz_even_p(z) (! mpz_odd_p (z))
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diff --git a/pkcs1.h b/pkcs1.h
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index fa27225..f402688 100644
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--- a/pkcs1.h
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+++ b/pkcs1.h
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@@ -26,7 +26,7 @@
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#ifndef NETTLE_PKCS1_H_INCLUDED
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#define NETTLE_PKCS1_H_INCLUDED
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-#include <gmp.h>
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+#include "bignum.h"
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#include "nettle-types.h"
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#ifdef __cplusplus
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diff --git a/rsa.h b/rsa.h
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index 4226f38..c293cd1 100644
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--- a/rsa.h
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+++ b/rsa.h
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@@ -26,7 +26,7 @@
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#ifndef NETTLE_RSA_H_INCLUDED
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#define NETTLE_RSA_H_INCLUDED
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-#include <gmp.h>
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+#include "bignum.h"
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#include "nettle-types.h"
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#include "md5.h"
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diff --git a/testsuite/Makefile.in b/testsuite/Makefile.in
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index 91f6e2a..c8ab5f6 100644
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--- a/testsuite/Makefile.in
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+++ b/testsuite/Makefile.in
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@@ -47,7 +47,7 @@ TS_HOGWEED = $(TS_HOGWEED_SOURCES:.c=$(EXEEXT))
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TS_C = $(TS_NETTLE) @IF_HOGWEED@ $(TS_HOGWEED)
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TS_CXX = @IF_CXX@ $(CXX_SOURCES:.cxx=$(EXEEXT))
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TARGETS = $(TS_C) $(TS_CXX)
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-TS_SH = sexp-conv-test pkcs1-conv-test symbols-test
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+TS_SH = sexp-conv-test pkcs1-conv-test @IF_NOT_MINI_GMP@ symbols-test
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TS_ALL = $(TARGETS) $(TS_SH)
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EXTRA_SOURCES = sha1-huge-test.c
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EXTRA_TARGETS = $(EXTRA_SOURCES:.c=$(EXEEXT))
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@@ -75,7 +75,7 @@ all: $(TARGETS) $(EXTRA_TARGETS)
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LIB_HOGWEED = @IF_HOGWEED@ -lhogweed
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TEST_OBJS = testutils.$(OBJEXT) ../nettle-internal.$(OBJEXT) \
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- $(LIB_HOGWEED) -lnettle $(LIBS)
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+ $(LIB_HOGWEED) -lnettle $(LIBS) $(TESTSUITE_LIBS)
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../nettle-internal.$(OBJEXT):
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( cd .. && $(MAKE) nettle-internal.$(OBJEXT) )
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diff --git a/testsuite/testutils.h b/testsuite/testutils.h
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index 123bae2..a677a2a 100644
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--- a/testsuite/testutils.h
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+++ b/testsuite/testutils.h
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@@ -12,11 +12,10 @@
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#include <stdio.h>
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#include <string.h>
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-#if HAVE_LIBGMP
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-# include "bignum.h"
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-#endif
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#if WITH_HOGWEED
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+# include <gmp.h>
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+# undef USE_MINI_GMP
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# include "rsa.h"
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# include "dsa.h"
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# include "ecc-curve.h"
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--
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1.9.2
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