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crypto: introduce new module for computing hash digests

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Introduce a new crypto/ directory that will (eventually) contain
all the cryptographic related code. This initially defines a
wrapper for initializing gnutls and for computing hashes with
gnutls. The former ensures that gnutls is guaranteed to be
initialized exactly once in QEMU regardless of CLI args. The
block quorum code currently fails to initialize gnutls so it
only works by luck, if VNC server TLS is not requested. The
hash APIs avoids the need to litter the rest of the code with
preprocessor checks and simplifies callers by allocating the
correct amount of memory for the requested hash.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1435770638-25715-2-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Daniel P. Berrange 2015-07-01 18:10:29 +01:00 • committed by Paolo Bonzini
parent 6b3f7f639e
commit ddbb0d0966
12 changed files with 752 additions and 0 deletions
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45
configure vendored
View file

@ -330,6 +330,8 @@ glusterfs_zerofill="no"
archipelago="no"
gtk=""
gtkabi=""
gnutls=""
gnutls_hash=""
vte=""
tpm="yes"
libssh2=""
@ -1118,6 +1120,10 @@ for opt do
;;
--enable-gtk) gtk="yes"
;;
--disable-gnutls) gnutls="no"
;;
--enable-gnutls) gnutls="yes"
;;
--enable-rdma) rdma="yes"
;;
--disable-rdma) rdma="no"
@ -1328,6 +1334,7 @@ disabled with --disable-FEATURE, default is enabled if available:
debug-info debugging information
sparse sparse checker
gnutls GNUTLS cryptography support
sdl SDL UI
--with-sdlabi select preferred SDL ABI 1.2 or 2.0
gtk gtk UI
@ -2115,6 +2122,36 @@ if test "$gtk" != "no"; then
fi
fi
##########################################
# GNUTLS probe
if test "$gnutls" != "no"; then
if $pkg_config --exists "gnutls"; then
gnutls_cflags=`$pkg_config --cflags gnutls`
gnutls_libs=`$pkg_config --libs gnutls`
libs_softmmu="$gnutls_libs $libs_softmmu"
libs_tools="$gnutls_libs $libs_tools"
QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
gnutls="yes"
# gnutls_hash_init requires >= 2.9.10
if $pkg_config --exists "gnutls >= 2.9.10"; then
gnutls_hash="yes"
else
gnutls_hash="no"
fi
elif test "$gnutls" = "yes"; then
feature_not_found "gnutls" "Install gnutls devel"
else
gnutls="no"
gnutls_hash="no"
fi
else
gnutls_hash="no"
fi
##########################################
# VTE probe
@ -4424,6 +4461,8 @@ fi
echo "pixman $pixman"
echo "SDL support $sdl"
echo "GTK support $gtk"
echo "GNUTLS support $gnutls"
echo "GNUTLS hash $gnutls_hash"
echo "VTE support $vte"
echo "curses support $curses"
echo "curl support $curl"
@ -4782,6 +4821,12 @@ if test "$gtk" = "yes" ; then
echo "CONFIG_GTKABI=$gtkabi" >> $config_host_mak
echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
fi
if test "$gnutls" = "yes" ; then
echo "CONFIG_GNUTLS=y" >> $config_host_mak
fi
if test "$gnutls_hash" = "yes" ; then
echo "CONFIG_GNUTLS_HASH=y" >> $config_host_mak
fi
if test "$vte" = "yes" ; then
echo "CONFIG_VTE=y" >> $config_host_mak
echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak