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crypto: do an explicit check for nettle pbkdf functions

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Support for the PBKDF functions in nettle was not introduced
until version 2.6. Some distros QEMU targets have older
versions and thus lack PBKDF support. Address this by doing
a check in configure for the desired function and then skipping
compilation of the nettle-pbkdf.o module

Reported-by: Wen Congyang <wency@cn.fujitsu.com>
Tested-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-03-29 15:47:51 +01:00
parent 8850dcbfd7
commit fff2f982ab
2 changed files with 18 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
configure vendored
View File

@ -308,6 +308,7 @@ gnutls=""
gnutls_hash=""
gnutls_rnd=""
nettle=""
nettle_kdf="no"
gcrypt=""
gcrypt_kdf="no"
vte=""
@ -2335,6 +2336,17 @@ if test "$nettle" != "no"; then
libs_tools="$nettle_libs $libs_tools"
QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
nettle="yes"
cat > $TMPC << EOF
#include <nettle/pbkdf2.h>
int main(void) {
pbkdf2_hmac_sha256(8, NULL, 1000, 8, NULL, 8, NULL);
return 0;
}
EOF
if compile_prog "$nettle_cflags" "$nettle_libs" ; then
nettle_kdf=yes
fi
else
if test "$nettle" = "yes"; then
feature_not_found "nettle" "Install nettle devel"
@ -4746,6 +4758,7 @@ if test "$nettle" = "yes"; then
else
echo "nettle $nettle"
fi
echo "nettle kdf $nettle_kdf"
echo "libtasn1 $tasn1"
echo "VTE support $vte"
echo "curses support $curses"
@ -5130,6 +5143,9 @@ fi
if test "$nettle" = "yes" ; then
echo "CONFIG_NETTLE=y" >> $config_host_mak
echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
if test "$nettle_kdf" = "yes" ; then
echo "CONFIG_NETTLE_KDF=y" >> $config_host_mak
fi
fi
if test "$tasn1" = "yes" ; then
echo "CONFIG_TASN1=y" >> $config_host_mak

4
crypto/Makefile.objs
View File

@ -11,8 +11,8 @@ crypto-obj-y += secret.o
crypto-obj-$(CONFIG_GCRYPT) += random-gcrypt.o
crypto-obj-$(if $(CONFIG_GCRYPT),n,$(CONFIG_GNUTLS_RND)) += random-gnutls.o
crypto-obj-y += pbkdf.o
crypto-obj-$(CONFIG_NETTLE) += pbkdf-nettle.o
crypto-obj-$(if $(CONFIG_NETTLE),n,$(CONFIG_GCRYPT_KDF)) += pbkdf-gcrypt.o
crypto-obj-$(CONFIG_NETTLE_KDF) += pbkdf-nettle.o
crypto-obj-$(if $(CONFIG_NETTLE_KDF),n,$(CONFIG_GCRYPT_KDF)) += pbkdf-gcrypt.o
crypto-obj-y += ivgen.o
crypto-obj-y += ivgen-essiv.o
crypto-obj-y += ivgen-plain.o