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First veritysetup version using configure --with-veritysetup.

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This commit is contained in:
Alasdair Kergon 2012-03-24 01:59:59 +00:00
parent 7076d1439b
commit 3d962ed68f
6 changed files with 1522 additions and 2 deletions
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1
WHATS_NEW_DM
View File

@ -1,5 +1,6 @@
Version 1.02.75 -
================================
Add configure --with-veritysetup for independent veritysetup tool.
Properly support passed in dmevent path in dm_event_register_handler().
Remove dmeventd fifos on exit if they are not managed by systemd.
Use SD_ACTIVATION env. var. in systemd units to better detect systemd in use.

427
configure vendored
View File

@ -682,6 +682,13 @@ BUILD_CMIRRORD
APPLIB
MODPROBE_CMD
MSGFMT
VERITYSETUP
VERITYSETUP_LIBS
VERITYSETUP_CFLAGS
NSS_LIBS
NSS_CFLAGS
OPENSSL_LIBS
OPENSSL_CFLAGS
LVM2CMD_LIB
LVM2APP_LIB
UDEV_LIBS
@ -837,6 +844,7 @@ enable_pkgconfig
enable_write_install
enable_fsadm
enable_dmeventd
with_veritysetup
enable_selinux
enable_nls
with_localedir
@ -894,7 +902,11 @@ SACKPT_LIBS
CUNIT_CFLAGS
CUNIT_LIBS
UDEV_CFLAGS
UDEV_LIBS'
UDEV_LIBS
OPENSSL_CFLAGS
OPENSSL_LIBS
NSS_CFLAGS
NSS_LIBS'
# Initialize some variables set by options.
@ -1584,6 +1596,7 @@ Optional Packages:
--with-cmirrord-pidfile=PATH
cmirrord pidfile [[/var/run/cmirrord.pid]]
--with-optimisation=OPT C optimisation flag [[OPT=-O2]]
--with-veritysetup=TYPE build veritysetup using openssl/nss/gcrypt
--with-localedir=DIR translation files in DIR [[PREFIX/share/locale]]
--with-confdir=DIR configuration files in DIR [[/etc]]
--with-staticdir=DIR static binaries in DIR [[EPREFIX/sbin]]
@ -1663,6 +1676,12 @@ Some influential environment variables:
CUNIT_LIBS linker flags for CUNIT, overriding pkg-config
UDEV_CFLAGS C compiler flags for UDEV, overriding pkg-config
UDEV_LIBS linker flags for UDEV, overriding pkg-config
OPENSSL_CFLAGS
C compiler flags for OPENSSL, overriding pkg-config
OPENSSL_LIBS
linker flags for OPENSSL, overriding pkg-config
NSS_CFLAGS C compiler flags for NSS, overriding pkg-config
NSS_LIBS linker flags for NSS, overriding pkg-config
Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.
@ -2867,6 +2886,8 @@ case "$host_os" in
;;
esac
VERITYSETUP=no
################################################################################
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
$as_echo_n "checking for a sed that does not truncate output... " >&6; }
@ -9089,6 +9110,407 @@ $as_echo "#define DMEVENTD 1" >>confdefs.h
fi
################################################################################
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to install veritysetup" >&5
$as_echo_n "checking whether to install veritysetup... " >&6; }
# Check whether --with-veritysetup was given.
if test "${with_veritysetup+set}" = set; then :
withval=$with_veritysetup; VERITYSETUP=$withval
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $VERITYSETUP" >&5
$as_echo "$VERITYSETUP" >&6; }
if test x$VERITYSETUP != xno -a x$VERITYSETUP != x; then
if test x$PKGCONFIG_INIT != x1; then
pkg_config_init
fi
if test -z "$VERITYSETUP_CFLAGS" && test x$VERITYSETUP = xyes -o x$VERITYSETUP = xopenssl; then
pkg_failed=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for OPENSSL" >&5
$as_echo_n "checking for OPENSSL... " >&6; }
if test -n "$OPENSSL_CFLAGS"; then
pkg_cv_OPENSSL_CFLAGS="$OPENSSL_CFLAGS"
elif test -n "$PKG_CONFIG"; then
if test -n "$PKG_CONFIG" && \
{ { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"openssl\""; } >&5
($PKG_CONFIG --exists --print-errors "openssl") 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
pkg_cv_OPENSSL_CFLAGS=`$PKG_CONFIG --cflags "openssl" 2>/dev/null`
else
pkg_failed=yes
fi
else
pkg_failed=untried
fi
if test -n "$OPENSSL_LIBS"; then
pkg_cv_OPENSSL_LIBS="$OPENSSL_LIBS"
elif test -n "$PKG_CONFIG"; then
if test -n "$PKG_CONFIG" && \
{ { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"openssl\""; } >&5
($PKG_CONFIG --exists --print-errors "openssl") 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
pkg_cv_OPENSSL_LIBS=`$PKG_CONFIG --libs "openssl" 2>/dev/null`
else
pkg_failed=yes
fi
else
pkg_failed=untried
fi
if test $pkg_failed = yes; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
_pkg_short_errors_supported=yes
else
_pkg_short_errors_supported=no
fi
if test $_pkg_short_errors_supported = yes; then
OPENSSL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "openssl" 2>&1`
else
OPENSSL_PKG_ERRORS=`$PKG_CONFIG --print-errors "openssl" 2>&1`
fi
# Put the nasty error message in config.log where it belongs
echo "$OPENSSL_PKG_ERRORS" >&5
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EVP_get_digestbyname in -lcrypto" >&5
$as_echo_n "checking for EVP_get_digestbyname in -lcrypto... " >&6; }
if test "${ac_cv_lib_crypto_EVP_get_digestbyname+set}" = set; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lcrypto $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char EVP_get_digestbyname ();
int
main ()
{
return EVP_get_digestbyname ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_crypto_EVP_get_digestbyname=yes
else
ac_cv_lib_crypto_EVP_get_digestbyname=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_EVP_get_digestbyname" >&5
$as_echo "$ac_cv_lib_crypto_EVP_get_digestbyname" >&6; }
if test "x$ac_cv_lib_crypto_EVP_get_digestbyname" = x""yes; then :
ac_fn_c_check_header_mongrel "$LINENO" "openssl/evp.h" "ac_cv_header_openssl_evp_h" "$ac_includes_default"
if test "x$ac_cv_header_openssl_evp_h" = x""yes; then :
$as_echo "#define CRYPT_OPENSSL 1" >>confdefs.h
VERITYSETUP_CFLAGS=
VERITYSETUP_LIBS="-lcrypto"
fi
fi
elif test $pkg_failed = untried; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EVP_get_digestbyname in -lcrypto" >&5
$as_echo_n "checking for EVP_get_digestbyname in -lcrypto... " >&6; }
if test "${ac_cv_lib_crypto_EVP_get_digestbyname+set}" = set; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lcrypto $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char EVP_get_digestbyname ();
int
main ()
{
return EVP_get_digestbyname ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_crypto_EVP_get_digestbyname=yes
else
ac_cv_lib_crypto_EVP_get_digestbyname=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_EVP_get_digestbyname" >&5
$as_echo "$ac_cv_lib_crypto_EVP_get_digestbyname" >&6; }
if test "x$ac_cv_lib_crypto_EVP_get_digestbyname" = x""yes; then :
ac_fn_c_check_header_mongrel "$LINENO" "openssl/evp.h" "ac_cv_header_openssl_evp_h" "$ac_includes_default"
if test "x$ac_cv_header_openssl_evp_h" = x""yes; then :
$as_echo "#define CRYPT_OPENSSL 1" >>confdefs.h
VERITYSETUP_CFLAGS=
VERITYSETUP_LIBS="-lcrypto"
fi
fi
else
OPENSSL_CFLAGS=$pkg_cv_OPENSSL_CFLAGS
OPENSSL_LIBS=$pkg_cv_OPENSSL_LIBS
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
$as_echo "#define CRYPT_OPENSSL 1" >>confdefs.h
VERITYSETUP_CFLAGS="$OPENSSL_CFLAGS"
VERITYSETUP_LIBS="`echo "$OPENSSL_LIBS" | sed 's/-lssl\>//'`"
fi
fi
if test -z "$VERITYSETUP_CFLAGS" && test x$VERITYSETUP = xyes -o x$VERITYSETUP = xnss; then
pkg_failed=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for NSS" >&5
$as_echo_n "checking for NSS... " >&6; }
if test -n "$NSS_CFLAGS"; then
pkg_cv_NSS_CFLAGS="$NSS_CFLAGS"
elif test -n "$PKG_CONFIG"; then
if test -n "$PKG_CONFIG" && \
{ { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"nss\""; } >&5
($PKG_CONFIG --exists --print-errors "nss") 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
pkg_cv_NSS_CFLAGS=`$PKG_CONFIG --cflags "nss" 2>/dev/null`
else
pkg_failed=yes
fi
else
pkg_failed=untried
fi
if test -n "$NSS_LIBS"; then
pkg_cv_NSS_LIBS="$NSS_LIBS"
elif test -n "$PKG_CONFIG"; then
if test -n "$PKG_CONFIG" && \
{ { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"nss\""; } >&5
($PKG_CONFIG --exists --print-errors "nss") 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
pkg_cv_NSS_LIBS=`$PKG_CONFIG --libs "nss" 2>/dev/null`
else
pkg_failed=yes
fi
else
pkg_failed=untried
fi
if test $pkg_failed = yes; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
_pkg_short_errors_supported=yes
else
_pkg_short_errors_supported=no
fi
if test $_pkg_short_errors_supported = yes; then
NSS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "nss" 2>&1`
else
NSS_PKG_ERRORS=`$PKG_CONFIG --print-errors "nss" 2>&1`
fi
# Put the nasty error message in config.log where it belongs
echo "$NSS_PKG_ERRORS" >&5
true
elif test $pkg_failed = untried; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
true
else
NSS_CFLAGS=$pkg_cv_NSS_CFLAGS
NSS_LIBS=$pkg_cv_NSS_LIBS
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
$as_echo "#define CRYPT_NSS 1" >>confdefs.h
VERITYSETUP_CFLAGS="$NSS_CFLAGS"
VERITYSETUP_LIBS="`echo "$NSS_LIBS" | sed 's/-lsmime3\>//' | sed 's/-lssl3\>//'`"
fi
fi
if test -z "$VERITYSETUP_CFLAGS" && test x$VERITYSETUP = xyes -o x$VERITYSETUP = xgcrypt; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcry_md_map_name in -lgcrypt" >&5
$as_echo_n "checking for gcry_md_map_name in -lgcrypt... " >&6; }
if test "${ac_cv_lib_gcrypt_gcry_md_map_name+set}" = set; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lgcrypt $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char gcry_md_map_name ();
int
main ()
{
return gcry_md_map_name ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_gcrypt_gcry_md_map_name=yes
else
ac_cv_lib_gcrypt_gcry_md_map_name=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gcrypt_gcry_md_map_name" >&5
$as_echo "$ac_cv_lib_gcrypt_gcry_md_map_name" >&6; }
if test "x$ac_cv_lib_gcrypt_gcry_md_map_name" = x""yes; then :
ac_fn_c_check_header_mongrel "$LINENO" "gcrypt.h" "ac_cv_header_gcrypt_h" "$ac_includes_default"
if test "x$ac_cv_header_gcrypt_h" = x""yes; then :
$as_echo "#define CRYPT_GCRYPT 1" >>confdefs.h
VERITYSETUP_CFLAGS=
VERITYSETUP_LIBS="-lgcrypt"
fi
fi
fi
if test -z "$VERITYSETUP_LIBS"; then
as_fn_error $? "No cryptographic library for veritysetup found" "$LINENO" 5
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for poptGetContext in -lpopt" >&5
$as_echo_n "checking for poptGetContext in -lpopt... " >&6; }
if test "${ac_cv_lib_popt_poptGetContext+set}" = set; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lpopt $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char poptGetContext ();
int
main ()
{
return poptGetContext ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_popt_poptGetContext=yes
else
ac_cv_lib_popt_poptGetContext=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_popt_poptGetContext" >&5
$as_echo "$ac_cv_lib_popt_poptGetContext" >&6; }
if test "x$ac_cv_lib_popt_poptGetContext" = x""yes; then :
true
else
as_fn_error $? "popt library was not found" "$LINENO" 5
fi
ac_fn_c_check_header_mongrel "$LINENO" "popt.h" "ac_cv_header_popt_h" "$ac_includes_default"
if test "x$ac_cv_header_popt_h" = x""yes; then :
true
else
as_fn_error $? "popt.h was not found" "$LINENO" 5
fi
VERITYSETUP_LIBS="$VERITYSETUP_LIBS -lpopt"
VERITYSETUP=yes
fi
################################################################################
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for getline in -lc" >&5
@ -10491,7 +10913,7 @@ LVM_LIBAPI=`echo "$VER" | $AWK -F '[()]' '{print $2}'`
################################################################################
ac_config_files="$ac_config_files Makefile make.tmpl daemons/Makefile daemons/clvmd/Makefile daemons/cmirrord/Makefile daemons/dmeventd/Makefile daemons/dmeventd/libdevmapper-event.pc daemons/dmeventd/plugins/Makefile daemons/dmeventd/plugins/lvm2/Makefile daemons/dmeventd/plugins/raid/Makefile daemons/dmeventd/plugins/mirror/Makefile daemons/dmeventd/plugins/snapshot/Makefile daemons/dmeventd/plugins/thin/Makefile daemons/lvmetad/Makefile doc/Makefile doc/example.conf include/.symlinks include/Makefile lib/Makefile lib/format1/Makefile lib/format_pool/Makefile lib/locking/Makefile lib/mirror/Makefile lib/replicator/Makefile lib/misc/lvm-version.h lib/raid/Makefile lib/snapshot/Makefile lib/thin/Makefile libdaemon/Makefile libdaemon/client/Makefile libdaemon/server/Makefile libdm/Makefile libdm/libdevmapper.pc liblvm/Makefile liblvm/liblvm2app.pc man/Makefile po/Makefile scripts/clvmd_init_red_hat scripts/cmirrord_init_red_hat scripts/lvm2_lvmetad_init_red_hat scripts/lvm2_lvmetad_systemd_red_hat.socket scripts/lvm2_lvmetad_systemd_red_hat.service scripts/lvm2_monitoring_init_red_hat scripts/dm_event_systemd_red_hat.service scripts/lvm2_monitoring_systemd_red_hat.service scripts/lvm2_tmpfiles_red_hat.conf scripts/Makefile test/Makefile test/api/Makefile test/unit/Makefile tools/Makefile udev/Makefile unit-tests/datastruct/Makefile unit-tests/regex/Makefile unit-tests/mm/Makefile"
ac_config_files="$ac_config_files Makefile make.tmpl daemons/Makefile daemons/clvmd/Makefile daemons/cmirrord/Makefile daemons/dmeventd/Makefile daemons/dmeventd/libdevmapper-event.pc daemons/dmeventd/plugins/Makefile daemons/dmeventd/plugins/lvm2/Makefile daemons/dmeventd/plugins/raid/Makefile daemons/dmeventd/plugins/mirror/Makefile daemons/dmeventd/plugins/snapshot/Makefile daemons/dmeventd/plugins/thin/Makefile daemons/lvmetad/Makefile doc/Makefile doc/example.conf include/.symlinks include/Makefile lib/Makefile lib/format1/Makefile lib/format_pool/Makefile lib/locking/Makefile lib/mirror/Makefile lib/replicator/Makefile lib/misc/lvm-version.h lib/raid/Makefile lib/snapshot/Makefile lib/thin/Makefile libdaemon/Makefile libdaemon/client/Makefile libdaemon/server/Makefile libdm/Makefile libdm/libdevmapper.pc liblvm/Makefile liblvm/liblvm2app.pc man/Makefile po/Makefile scripts/clvmd_init_red_hat scripts/cmirrord_init_red_hat scripts/lvm2_lvmetad_init_red_hat scripts/lvm2_lvmetad_systemd_red_hat.socket scripts/lvm2_lvmetad_systemd_red_hat.service scripts/lvm2_monitoring_init_red_hat scripts/dm_event_systemd_red_hat.service scripts/lvm2_monitoring_systemd_red_hat.service scripts/lvm2_tmpfiles_red_hat.conf scripts/Makefile test/Makefile test/api/Makefile test/unit/Makefile tools/Makefile udev/Makefile unit-tests/datastruct/Makefile unit-tests/regex/Makefile unit-tests/mm/Makefile veritysetup/Makefile"
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
@ -11235,6 +11657,7 @@ do
"unit-tests/datastruct/Makefile") CONFIG_FILES="$CONFIG_FILES unit-tests/datastruct/Makefile" ;;
"unit-tests/regex/Makefile") CONFIG_FILES="$CONFIG_FILES unit-tests/regex/Makefile" ;;
"unit-tests/mm/Makefile") CONFIG_FILES="$CONFIG_FILES unit-tests/mm/Makefile" ;;
"veritysetup/Makefile") CONFIG_FILES="$CONFIG_FILES veritysetup/Makefile" ;;
*) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
esac

68
configure.in
View File

@ -62,6 +62,8 @@ case "$host_os" in
;;
esac
VERITYSETUP=no
################################################################################
dnl -- Checks for programs.
AC_PROG_SED
@ -1029,6 +1031,71 @@ if test x$DMEVENTD = xyes; then
AC_DEFINE([DMEVENTD], 1, [Define to 1 to enable the device-mapper event daemon.])
fi
################################################################################
dnl -- enable veritysetup
AC_MSG_CHECKING(whether to install veritysetup)
AC_ARG_WITH(veritysetup, AC_HELP_STRING([--with-veritysetup=TYPE], [build veritysetup using openssl/nss/gcrypt]),
VERITYSETUP=$withval)
AC_MSG_RESULT($VERITYSETUP)
if test x$VERITYSETUP != xno -a x$VERITYSETUP != x; then
if test x$PKGCONFIG_INIT != x1; then
pkg_config_init
fi
dnl Test OPENSSL
if test -z "$VERITYSETUP_CFLAGS" && test x$VERITYSETUP = xyes -o x$VERITYSETUP = xopenssl; then
PKG_CHECK_MODULES(OPENSSL, openssl, [
AC_DEFINE([CRYPT_OPENSSL], 1, [Define to 1 if OpenSSL encryption is to be used.])
VERITYSETUP_CFLAGS="$OPENSSL_CFLAGS"
VERITYSETUP_LIBS="`echo "$OPENSSL_LIBS" | sed 's/-lssl\>//'`"
], [
AC_CHECK_LIB(crypto, EVP_get_digestbyname, [
AC_CHECK_HEADER(openssl/evp.h, [
AC_DEFINE([CRYPT_OPENSSL], 1, [Define to 1 if OpenSSL encryption is to be used.])
VERITYSETUP_CFLAGS=
VERITYSETUP_LIBS="-lcrypto"
])
])
])
fi
dnl Test NSS
if test -z "$VERITYSETUP_CFLAGS" && test x$VERITYSETUP = xyes -o x$VERITYSETUP = xnss; then
PKG_CHECK_MODULES(NSS, nss, [
AC_DEFINE([CRYPT_NSS], 1, [Define to 1 if nss encryption is to be used.])
VERITYSETUP_CFLAGS="$NSS_CFLAGS"
VERITYSETUP_LIBS="`echo "$NSS_LIBS" | sed 's/-lsmime3\>//' | sed 's/-lssl3\>//'`"
], true)
fi
dnl Test GCRYPT
if test -z "$VERITYSETUP_CFLAGS" && test x$VERITYSETUP = xyes -o x$VERITYSETUP = xgcrypt; then
AC_CHECK_LIB(gcrypt, gcry_md_map_name, [
AC_CHECK_HEADER(gcrypt.h, [
AC_DEFINE([CRYPT_GCRYPT], 1, [Define to 1 if gcrpyt encryption is to be used.])
VERITYSETUP_CFLAGS=
VERITYSETUP_LIBS="-lgcrypt"
])
])
fi
if test -z "$VERITYSETUP_LIBS"; then
AC_MSG_ERROR(No cryptographic library for veritysetup found)
fi
AC_CHECK_LIB(popt, poptGetContext, true, [
AC_MSG_ERROR(popt library was not found)
])
AC_CHECK_HEADER(popt.h, true, [
AC_MSG_ERROR(popt.h was not found)
])
VERITYSETUP_LIBS="$VERITYSETUP_LIBS -lpopt"
AC_SUBST(VERITYSETUP_CFLAGS)
AC_SUBST(VERITYSETUP_LIBS)
VERITYSETUP=yes
fi
AC_SUBST(VERITYSETUP)
################################################################################
dnl -- getline included in recent libc
@ -1574,6 +1641,7 @@ udev/Makefile
unit-tests/datastruct/Makefile
unit-tests/regex/Makefile
unit-tests/mm/Makefile
veritysetup/Makefile
])
AC_OUTPUT

9
lib/misc/configure.h.in
View File

@ -23,6 +23,15 @@
*/
#undef CRAY_STACKSEG_END
/* Define to 1 if gcrpyt encryption is to be used. */
#undef CRYPT_GCRYPT
/* Define to 1 if nss encryption is to be used. */
#undef CRYPT_NSS
/* Define to 1 if OpenSSL encryption is to be used. */
#undef CRYPT_OPENSSL
/* Define to 1 if using `alloca.c'. */
#undef C_ALLOCA

31
veritysetup/Makefile.in Normal file
View File

@ -0,0 +1,31 @@
# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
#
# This file is part of the device-mapper userspace tools.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU Lesser General Public License v.2.1.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
srcdir = @srcdir@
top_srcdir = @top_srcdir@
top_builddir = @top_builddir@
SOURCES = veritysetup.c
TARGETS = veritysetup
INCLUDES += @VERITYSETUP_CFLAGS@
include $(top_builddir)/make.tmpl
VERITYSETUP_LIBS = @VERITYSETUP_LIBS@
veritysetup: $(OBJECTS)
$(CC) $(CFLAGS) $(LDFLAGS) -o veritysetup $(OBJECTS) $(VERITYSETUP_LIBS)
install: $(TARGETS)
$(INSTALL_PROGRAM) -D veritysetup $(sbindir)/veritysetup

988
veritysetup/veritysetup.c Normal file
View File

@ -0,0 +1,988 @@
/*
* veritysetup
*
* (C) 2012 Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License v.2.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Compile flags to use a specific crypto library:
* openssl: -lpopt -DCRYPT_OPENSSL -lcrypto
* nss: -lpopt -DCRYPT_NSS -I/usr/include/nspr/ -I/usr/include/nss -lnss3
* gcrypt: -lpopt -DCRYPT_GCRYPT -lgcrypt -lgpg-error
*/
#define _FILE_OFFSET_BITS 64
#ifdef HAVE_CONFIG_H
# include "configure.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <arpa/inet.h>
#include <popt.h>
#ifdef CRYPT_OPENSSL
# include <openssl/evp.h>
# include <openssl/rand.h>
#elif defined(CRYPT_GCRYPT)
# include <gcrypt.h>
#elif defined(CRYPT_NSS)
# include <nss.h>
# include <sechash.h>
# include <pk11pub.h>
#endif
#if !defined(CRYPT_OPENSSL) && !defined(CRYPT_GCRYPT) && !defined(CRYPT_NSS)
#error No crypto engine specified
#endif
#define DEFAULT_BLOCK_SIZE 4096
#define DM_VERITY_MAX_LEVELS 63
#define DEFAULT_SALT_SIZE 32
#define MAX_SALT_SIZE 384
#define MODE_VERIFY 0
#define MODE_CREATE 1
#define MODE_ACTIVATE 2
#define MAX_FORMAT_VERSION 1
static int mode = -1;
static int use_superblock = 1;
static const char *dm_device;
static const char *data_device;
static const char *hash_device;
static const char *hash_algorithm = NULL;
static const char *root_hash;
static int version = -1;
static int data_block_size = 0;
static int hash_block_size = 0;
static long long hash_start = 0;
static long long data_blocks = 0;
static const char *salt_string = NULL;
static const char *hash_start_string = NULL;
static const char *data_blocks_string = NULL;
static FILE *data_file;
static FILE *hash_file;
static off_t data_file_blocks;
static off_t hash_file_blocks;
static off_t used_hash_blocks;
static unsigned char *root_hash_bytes;
static unsigned char *calculated_digest;
static unsigned char *salt_bytes;
static unsigned salt_size;
static unsigned digest_size;
static unsigned char digest_size_bits;
static unsigned char levels;
static unsigned char hash_per_block_bits;
static off_t hash_level_block[DM_VERITY_MAX_LEVELS];
static off_t hash_level_size[DM_VERITY_MAX_LEVELS];
static off_t superblock_position;
static int retval = 0;
struct superblock {
uint8_t signature[8];
uint8_t version;
uint8_t data_block_bits;
uint8_t hash_block_bits;
uint8_t pad1[1];
uint16_t salt_size;
uint8_t pad2[2];
uint32_t data_blocks_hi;
uint32_t data_blocks_lo;
uint8_t algorithm[16];
uint8_t salt[MAX_SALT_SIZE];
uint8_t pad3[88];
};
#define DM_VERITY_SIGNATURE "verity\0\0"
#define DM_VERITY_VERSION 0
__attribute__ ((noreturn))
static void help(poptContext popt_context,
enum poptCallbackReason reason,
struct poptOption *key,
const char *arg,
void *data)
{
if (!strcmp(key->longName, "help")) {
poptPrintHelp(popt_context, stdout, 0);
} else {
printf("veritysetup");
#ifdef DM_LIB_VERSION
printf(", device mapper version %s", DM_LIB_VERSION);
#endif
printf("\n");
}
exit(0);
}
static struct poptOption popt_help_options[] = {
{ NULL, 0, POPT_ARG_CALLBACK, help, 0, NULL, NULL },
{ "help", 'h', POPT_ARG_NONE, NULL, 0, "Show help", NULL },
{ "version", 0, POPT_ARG_NONE, NULL, 0, "Show version", NULL },
POPT_TABLEEND
};
static struct poptOption popt_options[] = {
{ NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, NULL, NULL },
{ "create", 'c', POPT_ARG_VAL, &mode, MODE_CREATE, "Create hash", NULL },
{ "verify", 'v', POPT_ARG_VAL, &mode, MODE_VERIFY, "Verify integrity", NULL },
{ "activate", 'a', POPT_ARG_VAL, &mode, MODE_ACTIVATE, "Activate the device", NULL },
{ "no-superblock", 0, POPT_ARG_VAL, &use_superblock, 0, "Do not create/use superblock" },
{ "format", 0, POPT_ARG_INT, &version, 0, "Format version (1 - normal format, 0 - original Chromium OS format)", "number" },
{ "data-block-size", 0, POPT_ARG_INT, &data_block_size, 0, "Block size on the data device", "bytes" },
{ "hash-block-size", 0, POPT_ARG_INT, &hash_block_size, 0, "Block size on the hash device", "bytes" },
{ "data-blocks", 0, POPT_ARG_STRING, &data_blocks_string, 0, "The number of blocks in the data file", "blocks" },
{ "hash-start", 0, POPT_ARG_STRING, &hash_start_string, 0, "Starting block on the hash device", "512-byte sectors" },
{ "algorithm", 0, POPT_ARG_STRING, &hash_algorithm, 0, "Hash algorithm (default sha256)", "string" },
{ "salt", 0, POPT_ARG_STRING, &salt_string, 0, "Salt", "hex string" },
POPT_TABLEEND
};
#if defined(__GNUC__) && __GNUC__ >= 2
__attribute__((__format__(__printf__, 1, 2)))
#endif
__attribute__((noreturn))
static void exit_err(const char *msg, ...)
{
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
fputc('\n', stderr);
exit(2);
}
__attribute__((noreturn))
static void stream_err(FILE *f, const char *msg)
{
if (ferror(f)) {
perror(msg);
exit(2);
} else if (feof(f)) {
exit_err("eof on %s", msg);
} else {
exit_err("unknown error on %s", msg);
}
}
static void *xmalloc(size_t s)
{
void *ptr = malloc(!s ? 1 : s);
if (!ptr) exit_err("out of memory");
return ptr;
}
static char *xstrdup(const char *str)
{
return strcpy(xmalloc(strlen(str) + 1), str);
}
static char *xprint(unsigned long long num)
{
size_t s = snprintf(NULL, 0, "%llu", num);
char *p = xmalloc(s + 1);
snprintf(p, s + 1, "%llu", num);
return p;
}
static char *xhexprint(unsigned char *bytes, size_t len)
{
size_t i;
char *p = xmalloc(len * 2 + 1);
p[0] = 0;
for (i = 0; i < len; i++)
snprintf(p + i * 2, 3, "%02x", bytes[i]);
return p;
}
static off_t get_size(FILE *f, const char *name)
{
struct stat st;
int h = fileno(f);
if (h < 0) {
perror("fileno");
exit(2);
}
if (fstat(h, &st)) {
perror("fstat");
exit(2);
}
if (S_ISREG(st.st_mode)) {
return st.st_size;
} else if (S_ISBLK(st.st_mode)) {
unsigned long long size64;
unsigned long sizeul;
if (!ioctl(h, BLKGETSIZE64, &size64)) {
return_size64:
if ((off_t)size64 < 0 || (off_t)size64 != size64) {
size_overflow:
exit_err("%s: device size overflow", name);
}
return size64;
}
if (!ioctl(h, BLKGETSIZE, &sizeul)) {
size64 = (unsigned long long)sizeul * 512;
if (size64 / 512 != sizeul) goto size_overflow;
goto return_size64;
}
perror("BLKGETSIZE");
exit(2);
} else {
exit_err("%s is not a file or a block device", name);
}
return -1; /* never reached, shut up warning */
}
static void block_fseek(FILE *f, off_t block, int block_size)
{
unsigned long long pos = (unsigned long long)block * block_size;
if (pos / block_size != block ||
(off_t)pos < 0 ||
(off_t)pos != pos)
exit_err("seek position overflow");
if (fseeko(f, pos, SEEK_SET)) {
perror("fseek");
exit(2);
}
}
#ifdef CRYPT_OPENSSL
static const EVP_MD *evp;
static int hash_init(const char *name)
{
OpenSSL_add_all_digests();
evp = EVP_get_digestbyname(name);
if (!evp)
return 0;
return EVP_MD_size(evp);
}
typedef EVP_MD_CTX hash_context;
static void hash_context_init(hash_context *ctx)
{
EVP_MD_CTX_init(ctx);
}
static void hash_context_reset(hash_context *ctx)
{
if (EVP_DigestInit_ex(ctx, evp, NULL) != 1)
exit_err("EVP_DigestInit_ex failed");
}
static void hash_context_update(hash_context *ctx, unsigned char *data, size_t len)
{
if (EVP_DigestUpdate(ctx, data, len) != 1)
exit_err("EVP_DigestUpdate failed");
}
static void hash_context_final(hash_context *ctx, unsigned char *digest)
{
if (EVP_DigestFinal_ex(ctx, digest, NULL) != 1)
exit_err("EVP_DigestFinal_ex failed");
}
static void hash_context_destroy(hash_context *ctx)
{
if (EVP_MD_CTX_cleanup(ctx) != 1)
exit_err("EVP_MD_CTX_cleanup failed");
}
static void crypto_rand_bytes(unsigned char *data, size_t len)
{
if (RAND_bytes(data, len) != 1)
exit_err("RAND_bytes failed");
}
#elif defined(CRYPT_GCRYPT)
static int gcrypt_id;
static int hash_init(const char *name)
{
retry:
gcrypt_id = gcry_md_map_name(name);
if (!gcrypt_id) {
if (!strcmp(name, "wp512")) {
name = "whirlpool";
goto retry;
}
if (!strcmp(name, "rmd160")) {
name = "ripemd160";
goto retry;
}
return 0;
}
return gcry_md_get_algo_dlen(gcrypt_id);
}
typedef gcry_md_hd_t hash_context;
static void hash_context_init(hash_context *ctx)
{
if (gcry_md_open(ctx, gcrypt_id, 0))
exit_err("gcry_md_open failed");
}
static void hash_context_reset(hash_context *ctx)
{
gcry_md_reset(*ctx);
}
static void hash_context_update(hash_context *ctx, unsigned char *data, size_t len)
{
gcry_md_write(*ctx, data, len);
}
static void hash_context_final(hash_context *ctx, unsigned char *digest)
{
unsigned char *p = gcry_md_read(*ctx, gcrypt_id);
memcpy(digest, p, gcry_md_get_algo_dlen(gcrypt_id));
}
static void hash_context_destroy(hash_context *ctx)
{
gcry_md_close(*ctx);
}
static void crypto_rand_bytes(unsigned char *data, size_t len)
{
gcry_randomize(data, len, GCRY_STRONG_RANDOM);
}
#elif defined(CRYPT_NSS)
static HASH_HashType nss_alg;
static int hash_init(const char *name)
{
if (NSS_NoDB_Init(NULL) != SECSuccess)
exit_err("NSS_Init failed");
if (!strcmp(name, "md2"))
nss_alg = HASH_AlgMD2;
else if (!strcmp(name, "md5"))
nss_alg = HASH_AlgMD5;
else if (!strcmp(name, "sha1"))
nss_alg = HASH_AlgSHA1;
else if (!strcmp(name, "sha256"))
nss_alg = HASH_AlgSHA256;
else if (!strcmp(name, "sha384"))
nss_alg = HASH_AlgSHA384;
else if (!strcmp(name, "sha512"))
nss_alg = HASH_AlgSHA512;
else
return 0;
return HASH_ResultLen(nss_alg);
}
typedef HASHContext *hash_context;
static void hash_context_init(hash_context *ctx)
{
*ctx = HASH_Create(nss_alg);
if (!*ctx)
exit_err("HASH_Create failed");
}
static void hash_context_reset(hash_context *ctx)
{
HASH_Begin(*ctx);
}
static void hash_context_update(hash_context *ctx, unsigned char *data, size_t len)
{
HASH_Update(*ctx, data, len);
}
static void hash_context_final(hash_context *ctx, unsigned char *digest)
{
unsigned result_len;
HASH_End(*ctx, digest, &result_len, HASH_ResultLen(nss_alg));
}
static void hash_context_destroy(hash_context *ctx)
{
HASH_Destroy(*ctx);
}
static void crypto_rand_bytes(unsigned char *data, size_t len)
{
if (PK11_GenerateRandom(data, len) != SECSuccess)
exit_err("PK11_GenerateRandom failed");
}
#endif
static off_t verity_position_at_level(off_t block, int level)
{
return block >> (level * hash_per_block_bits);
}
static void calculate_positions(void)
{
unsigned long long hash_position;
int i;
digest_size_bits = 0;
while (1 << digest_size_bits < digest_size)
digest_size_bits++;
hash_per_block_bits = 0;
while (((hash_block_size / digest_size) >> hash_per_block_bits) > 1)
hash_per_block_bits++;
if (!hash_per_block_bits)
exit_err("at least two hashes must fit in a hash file block");
levels = 0;
if (data_file_blocks) {
while (hash_per_block_bits * levels < 64 &&
(unsigned long long)(data_file_blocks - 1) >>
(hash_per_block_bits * levels))
levels++;
}
if (levels > DM_VERITY_MAX_LEVELS)
exit_err("too many tree levels");
hash_position = hash_start * 512 / hash_block_size;
for (i = levels - 1; i >= 0; i--) {
off_t s;
hash_level_block[i] = hash_position;
s = verity_position_at_level(data_file_blocks, i);
s = (s >> hash_per_block_bits) +
!!(s & ((1 << hash_per_block_bits) - 1));
hash_level_size[i] = s;
if (hash_position + s < hash_position ||
(off_t)(hash_position + s) < 0 ||
(off_t)(hash_position + s) != hash_position + s)
exit_err("hash device offset overflow");
hash_position += s;
}
used_hash_blocks = hash_position;
}
static void create_or_verify_zero(FILE *wr, unsigned char *left_block, unsigned left_bytes)
{
if (left_bytes) {
if (mode != MODE_CREATE) {
unsigned x;
if (fread(left_block, left_bytes, 1, wr) != 1)
stream_err(wr, "read");
for (x = 0; x < left_bytes; x++) if (left_block[x]) {
retval = 1;
fprintf(stderr, "spare area is not zeroed at position %lld\n", (long long)ftello(wr) - left_bytes);
}
} else {
if (fwrite(left_block, left_bytes, 1, wr) != 1)
stream_err(wr, "write");
}
}
}
static void create_or_verify_stream(FILE *rd, FILE *wr, int block_size, off_t blocks)
{
unsigned char *left_block = xmalloc(hash_block_size);
unsigned char *data_buffer = xmalloc(block_size);
unsigned char *read_digest = mode != MODE_CREATE ? xmalloc(digest_size) : NULL;
off_t blocks_to_write = (blocks >> hash_per_block_bits) +
!!(blocks & ((1 << hash_per_block_bits) - 1));
hash_context ctx;
hash_context_init(&ctx);
memset(left_block, 0, hash_block_size);
while (blocks_to_write--) {
unsigned x;
unsigned left_bytes = hash_block_size;
for (x = 0; x < 1 << hash_per_block_bits; x++) {
if (!blocks)
break;
blocks--;
if (fread(data_buffer, block_size, 1, rd) != 1)
stream_err(rd, "read");
hash_context_reset(&ctx);
if (version >= 1) {
hash_context_update(&ctx, salt_bytes, salt_size);
}
hash_context_update(&ctx, data_buffer, block_size);
if (!version) {
hash_context_update(&ctx, salt_bytes, salt_size);
}
hash_context_final(&ctx, calculated_digest);
if (!wr)
break;
if (mode != MODE_CREATE) {
if (fread(read_digest, digest_size, 1, wr) != 1)
stream_err(wr, "read");
if (memcmp(read_digest, calculated_digest, digest_size)) {
retval = 1;
fprintf(stderr, "verification failed at position %lld in %s file\n", (long long)ftello(rd) - block_size, rd == data_file ? "data" : "metadata");
}
} else {
if (fwrite(calculated_digest, digest_size, 1, wr) != 1)
stream_err(wr, "write");
}
if (!version) {
left_bytes -= digest_size;
} else {
create_or_verify_zero(wr, left_block, (1 << digest_size_bits) - digest_size);
left_bytes -= 1 << digest_size_bits;
}
}
if (wr)
create_or_verify_zero(wr, left_block, left_bytes);
}
if (mode == MODE_CREATE && wr) {
if (fflush(wr)) {
perror("fflush");
exit(1);
}
if (ferror(wr)) {
stream_err(wr, "write");
}
}
hash_context_destroy(&ctx);
free(left_block);
free(data_buffer);
if (mode != MODE_CREATE)
free(read_digest);
}
static char **make_target_line(void)
{
const int line_elements = 14;
char **line = xmalloc(line_elements * sizeof(char *));
int i = 0;
char *algorithm_copy = xstrdup(hash_algorithm);
/* transform ripemdXXX to rmdXXX */
if (!strncmp(algorithm_copy, "ripemd", 6))
memmove(algorithm_copy + 1, algorithm_copy + 4, strlen(algorithm_copy + 4) + 1);
if (!strcmp(algorithm_copy, "whirlpool"))
strcpy(algorithm_copy, "wp512");
line[i++] = xstrdup("0");
line[i++] = xprint((unsigned long long)data_file_blocks * data_block_size / 512);
line[i++] = xstrdup("verity");
line[i++] = xprint(version);
line[i++] = xstrdup(data_device);
line[i++] = xstrdup(hash_device);
line[i++] = xprint(data_block_size);
line[i++] = xprint(hash_block_size);
line[i++] = xprint(data_file_blocks);
line[i++] = xprint(hash_start * 512 / hash_block_size);
line[i++] = algorithm_copy;
line[i++] = xhexprint(calculated_digest, digest_size);
line[i++] = !salt_size ? xstrdup("-") : xhexprint(salt_bytes, salt_size);
line[i++] = NULL;
if (i > line_elements)
exit_err("INTERNAL ERROR: insufficient array size");
return line;
}
static void free_target_line(char **line)
{
int i;
for (i = 0; line[i]; i++)
free(line[i]);
free(line);
}
static void create_or_verify(void)
{
int i;
if (mode != MODE_ACTIVATE)
for (i = 0; i < levels; i++) {
block_fseek(hash_file, hash_level_block[i], hash_block_size);
if (!i) {
block_fseek(data_file, 0, data_block_size);
create_or_verify_stream(data_file, hash_file, data_block_size, data_file_blocks);
} else {
FILE *hash_file_2 = fopen(hash_device, "r");
if (!hash_file_2) {
perror(hash_device);
exit(2);
}
block_fseek(hash_file_2, hash_level_block[i - 1], hash_block_size);
create_or_verify_stream(hash_file_2, hash_file, hash_block_size, hash_level_size[i - 1]);
fclose(hash_file_2);
}
}
if (levels) {
block_fseek(hash_file, hash_level_block[levels - 1], hash_block_size);
create_or_verify_stream(hash_file, NULL, hash_block_size, 1);
} else {
block_fseek(data_file, 0, data_block_size);
create_or_verify_stream(data_file, NULL, data_block_size, data_file_blocks);
}
if (mode != MODE_CREATE) {
if (memcmp(calculated_digest, root_hash_bytes, digest_size)) {
fprintf(stderr, "verification failed in the root block\n");
retval = 1;
}
if (!retval && mode == MODE_VERIFY)
fprintf(stderr, "hash successfully verified\n");
} else {
char **target_line;
char *p;
if (fsync(fileno(hash_file))) {
perror("fsync");
exit(1);
}
printf("hash device size: %llu\n", (unsigned long long)used_hash_blocks * hash_block_size);
printf("data block size %u, hash block size %u, %u tree levels\n", data_block_size, hash_block_size, levels);
if (salt_size)
p = xhexprint(salt_bytes, salt_size);
else
p = xstrdup("-");
printf("salt: %s\n", p);
free(p);
p = xhexprint(calculated_digest, digest_size);
printf("root hash: %s\n", p);
free(p);
printf("target line:");
target_line = make_target_line();
for (i = 0; target_line[i]; i++)
printf(" %s", target_line[i]);
free_target_line(target_line);
printf("\n");
}
}
__attribute__((noreturn))
static void activate(void)
{
int i;
size_t len = 1;
char *table_arg;
char **target_line = make_target_line();
for (i = 0; target_line[i]; i++) {
if (i)
len++;
len += strlen(target_line[i]);
}
table_arg = xmalloc(len);
table_arg[0] = 0;
for (i = 0; target_line[i]; i++) {
if (i)
strcat(table_arg, " ");
strcat(table_arg, target_line[i]);
}
free_target_line(target_line);
execlp("dmsetup", "dmsetup", "-r", "create", dm_device, "--table", table_arg, NULL);
perror("dmsetup");
exit(2);
}
static void get_hex(const char *string, unsigned char **result, size_t len, const char *description)
{
size_t rl = strlen(string);
unsigned u;
if (strspn(string, "0123456789ABCDEFabcdef") != rl)
exit_err("invalid %s", description);
if (rl != len * 2)
exit_err("invalid length of %s", description);
*result = xmalloc(len);
memset(*result, 0, len);
for (u = 0; u < rl; u++) {
unsigned char c = (string[u] & 15) + (string[u] > '9' ? 9 : 0);
(*result)[u / 2] |= c << (((u & 1) ^ 1) << 2);
}
}
static struct superblock superblock;
static void load_superblock(void)
{
long long sb_data_blocks;
block_fseek(hash_file, superblock_position, 1);
if (fread(&superblock, sizeof(struct superblock), 1, hash_file) != 1)
stream_err(hash_file, "read");
if (memcmp(superblock.signature, DM_VERITY_SIGNATURE, sizeof(superblock.signature)))
exit_err("superblock not found on the hash device");
if (superblock.version > MAX_FORMAT_VERSION)
exit_err("unknown version");
if (superblock.data_block_bits < 9 || superblock.data_block_bits >= 31)
exit_err("invalid data_block_bits in the superblock");
if (superblock.hash_block_bits < 9 || superblock.hash_block_bits >= 31)
exit_err("invalid data_block_bits in the superblock");
sb_data_blocks = ((unsigned long long)ntohl(superblock.data_blocks_hi) << 31 << 1) | ntohl(superblock.data_blocks_lo);
if (sb_data_blocks < 0 || (off_t)sb_data_blocks < 0 || (off_t)sb_data_blocks != sb_data_blocks)
exit_err("invalid data blocks in the superblock");
if (!memchr(superblock.algorithm, 0, sizeof(superblock.algorithm)))
exit_err("invalid hash algorithm in the superblock");
if (ntohs(superblock.salt_size) > MAX_SALT_SIZE)
exit_err("invalid salt_size in the superblock");
if (version == -1) {
version = superblock.version;
} else {
if (version != superblock.version)
exit_err("version (%d) does not match superblock value (%d)", version, superblock.version);
}
if (!data_block_size) {
data_block_size = 1 << superblock.data_block_bits;
} else {
if (data_block_size != 1 << superblock.data_block_bits)
exit_err("data block size (%d) does not match superblock value (%d)", data_block_size, 1 << superblock.data_block_bits);
}
if (!hash_block_size) {
hash_block_size = 1 << superblock.hash_block_bits;
} else {
if (hash_block_size != 1 << superblock.hash_block_bits)
exit_err("hash block size (%d) does not match superblock value (%d)", hash_block_size, 1 << superblock.hash_block_bits);
}
if (!data_blocks) {
data_blocks = sb_data_blocks;
} else {
if (data_blocks != sb_data_blocks)
exit_err("data blocks (%lld) does not match superblock value (%lld)", data_blocks, sb_data_blocks);
}
if (!hash_algorithm) {
hash_algorithm = (char *)superblock.algorithm;
} else {
if (strcmp(hash_algorithm, (char *)superblock.algorithm))
exit_err("hash algorithm (%s) does not match superblock value (%s)", hash_algorithm, superblock.algorithm);
}
if (!salt_bytes) {
salt_size = ntohs(superblock.salt_size);
salt_bytes = xmalloc(salt_size);
memcpy(salt_bytes, superblock.salt, salt_size);
} else {
if (salt_size != ntohs(superblock.salt_size) ||
memcmp(salt_bytes, superblock.salt, salt_size))
exit_err("salt does not match superblock value");
}
}
static void save_superblock(void)
{
memset(&superblock, 0, sizeof(struct superblock));
memcpy(&superblock.signature, DM_VERITY_SIGNATURE, sizeof(superblock.signature));
superblock.version = version;
superblock.data_block_bits = ffs(data_block_size) - 1;
superblock.hash_block_bits = ffs(hash_block_size) - 1;
superblock.salt_size = htons(salt_size);
superblock.data_blocks_hi = htonl(data_blocks >> 31 >> 1);
superblock.data_blocks_lo = htonl(data_blocks & 0xFFFFFFFF);
strncpy((char *)superblock.algorithm, hash_algorithm, sizeof superblock.algorithm);
memcpy(superblock.salt, salt_bytes, salt_size);
block_fseek(hash_file, superblock_position, 1);
if (fwrite(&superblock, sizeof(struct superblock), 1, hash_file) != 1)
stream_err(hash_file, "write");
}
int main(int argc, const char **argv)
{
poptContext popt_context;
int r;
const char *s;
char c;
if (sizeof(struct superblock) != 512)
exit_err("INTERNAL ERROR: bad superblock size %ld", (long)sizeof(struct superblock));
popt_context = poptGetContext("verity", argc, argv, popt_options, 0);
poptSetOtherOptionHelp(popt_context, "[-c | -v | -a] [<device name> if activating] <data device> <hash device> [<root hash> if activating or verifying] [OPTION...]");
if (argc <= 1) {
poptPrintHelp(popt_context, stdout, 0);
exit(1);
}
r = poptGetNextOpt(popt_context);
if (r < -1)
exit_err("bad option %s", poptBadOption(popt_context, 0));
if (mode < 0)
exit_err("verify, create or activate mode not specified");
if (mode == MODE_ACTIVATE) {
dm_device = poptGetArg(popt_context);
if (!dm_device)
exit_err("device name is missing");
if (!*dm_device || strchr(dm_device, '/'))
exit_err("invalid device name to activate");
}
data_device = poptGetArg(popt_context);
if (!data_device)
exit_err("data device is missing");
hash_device = poptGetArg(popt_context);
if (!hash_device)
exit_err("metadata device is missing");
if (mode != MODE_CREATE) {
root_hash = poptGetArg(popt_context);
if (!root_hash)
exit_err("root hash not specified");
}
s = poptGetArg(popt_context);
if (s)
exit_err("extra argument %s", s);
data_file = fopen(data_device, "r");
if (!data_file) {
perror(data_device);
exit(2);
}
hash_file = fopen(hash_device, mode != MODE_CREATE ? "r" : "r+");
if (!hash_file && errno == ENOENT && mode == MODE_CREATE)
hash_file = fopen(hash_device, "w+");
if (!hash_file) {
perror(hash_device);
exit(2);
}
if (hash_start_string)
if (sscanf(hash_start_string, "%lld%c", &hash_start, &c) != 1)
exit_err("invalid hash start");
if (hash_start < 0 ||
(unsigned long long)hash_start * 512 / 512 != hash_start ||
(off_t)(hash_start * 512) < 0 ||
(off_t)(hash_start * 512) != hash_start * 512) exit_err("invalid hash start");
if (salt_string || !use_superblock) {
if (!salt_string || !strcmp(salt_string, "-"))
salt_string = "";
salt_size = strlen(salt_string) / 2;
if (salt_size > MAX_SALT_SIZE)
exit_err("too long salt (max %d bytes)", MAX_SALT_SIZE);
get_hex(salt_string, &salt_bytes, salt_size, "salt");
}
if (use_superblock) {
superblock_position = hash_start * 512;
if (mode != MODE_CREATE)
load_superblock();
}
if (version == -1)
version = MAX_FORMAT_VERSION;
if (version < 0 || version > MAX_FORMAT_VERSION)
exit_err("invalid format version");
if (!data_block_size)
data_block_size = DEFAULT_BLOCK_SIZE;
if (!hash_block_size)
hash_block_size = data_block_size;
if (data_block_size < 512 || (data_block_size & (data_block_size - 1)) || data_block_size >= 1U << 31)
exit_err("invalid data block size");
if (hash_block_size < 512 || (hash_block_size & (hash_block_size - 1)) || hash_block_size >= 1U << 31)
exit_err("invalid hash block size");
if (data_blocks_string)
if (sscanf(data_blocks_string, "%lld%c", &data_blocks, &c) != 1)
exit_err("invalid number of data blocks");
if (data_blocks < 0 || (off_t)data_blocks < 0 || (off_t)data_blocks != data_blocks)
exit_err("invalid number of data blocks");
data_file_blocks = get_size(data_file, data_device) / data_block_size;
hash_file_blocks = get_size(hash_file, hash_device) / hash_block_size;
if (data_file_blocks < data_blocks)
exit_err("data file is too small");
if (data_blocks) {
data_file_blocks = data_blocks;
}
if (use_superblock) {
hash_start = hash_start + (sizeof(struct superblock) + 511) / 512;
hash_start = (hash_start + (hash_block_size / 512 - 1)) & ~(long long)(hash_block_size / 512 - 1);
}
if ((unsigned long long)hash_start * 512 % hash_block_size)
exit_err("hash start not aligned on block size");
if (!hash_algorithm)
hash_algorithm = "sha256";
if (strlen(hash_algorithm) >= sizeof(superblock.algorithm) && use_superblock)
exit_err("hash algorithm name is too long");
digest_size = hash_init(hash_algorithm);
if (!digest_size) exit_err("hash algorithm %s not found", hash_algorithm);
if (!salt_bytes) {
salt_size = DEFAULT_SALT_SIZE;
salt_bytes = xmalloc(salt_size);
crypto_rand_bytes(salt_bytes, salt_size);
}
calculated_digest = xmalloc(digest_size);
if (mode != MODE_CREATE) {
get_hex(root_hash, &root_hash_bytes, digest_size, "root_hash");
}
calculate_positions();
create_or_verify();
if (use_superblock) {
if (mode == MODE_CREATE)
save_superblock();
}
fclose(data_file);
fclose(hash_file);
if (mode == MODE_ACTIVATE && !retval)
activate();
free(salt_bytes);
free(calculated_digest);
if (mode != MODE_CREATE)
free(root_hash_bytes);
poptFreeContext(popt_context);
return retval;
}