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Encryption patch follow-up

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* PBKDF2 implementation changed to OpenSSL implementation.

* HKDF implementation moved to its own file and tests
  added to ensure correctness.

* Removed libzfs's now unnecessary dependency on libzpool
  and libicp.

* Ztest can now create and test encrypted datasets. This is
  currently disabled until issue #6526 is resolved, but
  otherwise functions as advertised.

* Several small bug fixes discovered after enabling ztest
  to run on encrypted datasets.

* Fixed coverity defects added by the encryption patch.

* Updated man pages for encrypted send / receive behavior.

* Fixed a bug where encrypted datasets could receive
  DRR_WRITE_EMBEDDED records.

* Minor code cleanups / consolidation.

Signed-off-by: Tom Caputi <tcaputi@datto.com>
This commit is contained in:
Tom Caputi 2017-09-12 16:15:11 -04:00
parent 94d49e8f9b
commit 4807c0badb
41 changed files with 1056 additions and 434 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
COPYRIGHT
View File

@ -23,7 +23,17 @@ approved for release under LLNL-CODE-403049.
Unless otherwise noted, all files in this distribution are released
under the Common Development and Distribution License (CDDL).
Exceptions are noted within the associated source files. See the file
OPENSOLARIS.LICENSE for more information.
Exceptions are noted within the associated source files. A few notable
exceptions and their respective licenses include:
Skein Checksum Implementation: module/icp/algs/skein/THIRDPARTYLICENSE
AES Implementation: module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman
AES Implementation: module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl
PBKDF2 Implementation: lib/libzfs/THIRDPARTYLICENSE.openssl
This product includes software developed by the OpenSSL Project for use
in the OpenSSL Toolkit (http://www.openssl.org/)
See the file OPENSOLARIS.LICENSE for more information.
Refer to the git commit log for authoritative copyright attribution.

23
cmd/zfs/zfs_main.c
View File

@ -7267,28 +7267,27 @@ zfs_do_change_key(int argc, char **argv)
keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS);
if (keystatus != ZFS_KEYSTATUS_AVAILABLE) {
ret = zfs_crypto_load_key(zhp, B_FALSE, NULL);
if (ret != 0)
goto error;
if (ret != 0) {
nvlist_free(props);
zfs_close(zhp);
return (-1);
}
}
/* refresh the properties so the new keystatus is visable */
/* refresh the properties so the new keystatus is visible */
zfs_refresh_properties(zhp);
}
ret = zfs_crypto_rewrap(zhp, props, inheritkey);
if (ret != 0)
goto error;
if (ret != 0) {
nvlist_free(props);
zfs_close(zhp);
return (-1);
}
nvlist_free(props);
zfs_close(zhp);
return (0);
error:
if (props != NULL)
nvlist_free(props);
if (zhp != NULL)
zfs_close(zhp);
return (-1);
}
int

15
cmd/zpool/zpool_main.c
View File

@ -8049,10 +8049,17 @@ main(int argc, char **argv)
* 'freeze' is a vile debugging abomination, so we treat
* it as such.
*/
char buf[16384];
int fd = open(ZFS_DEV, O_RDWR);
(void) strlcpy((void *)buf, argv[2], sizeof (buf));
return (!!ioctl(fd, ZFS_IOC_POOL_FREEZE, buf));
zfs_cmd_t zc = {"\0"};
(void) strlcpy(zc.zc_name, argv[2], sizeof (zc.zc_name));
ret = zfs_ioctl(g_zfs, ZFS_IOC_POOL_FREEZE, &zc);
if (ret != 0) {
(void) fprintf(stderr,
gettext("failed to freeze pool: %d\n"), errno);
ret = 1;
}
log_history = 0;
} else {
(void) fprintf(stderr, gettext("unrecognized "
"command '%s'\n"), cmdname);

119
cmd/ztest/ztest.c
View File

@ -201,6 +201,7 @@ extern int zfs_abd_scatter_enabled;
static ztest_shared_opts_t *ztest_shared_opts;
static ztest_shared_opts_t ztest_opts;
static char *ztest_wkeydata = "abcdefghijklmnopqrstuvwxyz012345";
typedef struct ztest_shared_ds {
uint64_t zd_seq;
@ -1180,6 +1181,42 @@ ztest_spa_prop_set_uint64(zpool_prop_t prop, uint64_t value)
return (error);
}
static int
ztest_dmu_objset_own(const char *name, dmu_objset_type_t type,
boolean_t readonly, boolean_t decrypt, void *tag, objset_t **osp)
{
int err;
err = dmu_objset_own(name, type, readonly, decrypt, tag, osp);
if (decrypt && err == EACCES) {
char ddname[ZFS_MAX_DATASET_NAME_LEN];
dsl_crypto_params_t *dcp;
nvlist_t *crypto_args = fnvlist_alloc();
char *cp = NULL;
/* spa_keystore_load_wkey() expects a dsl dir name */
strcpy(ddname, name);
cp = strchr(ddname, '@');
if (cp != NULL)
*cp = '\0';
fnvlist_add_uint8_array(crypto_args, "wkeydata",
(uint8_t *)ztest_wkeydata, WRAPPING_KEY_LEN);
VERIFY0(dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL,
crypto_args, &dcp));
err = spa_keystore_load_wkey(ddname, dcp, B_FALSE);
dsl_crypto_params_free(dcp, B_FALSE);
fnvlist_free(crypto_args);
if (err != 0)
return (err);
err = dmu_objset_own(name, type, readonly, decrypt, tag, osp);
}
return (err);
}
/*
* Object and range lock mechanics
@ -3532,11 +3569,57 @@ ztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
static int
ztest_dataset_create(char *dsname)
{
uint64_t zilset = ztest_random(100);
int err = dmu_objset_create(dsname, DMU_OST_OTHER, 0, NULL,
ztest_objset_create_cb, NULL);
int err;
uint64_t rand;
dsl_crypto_params_t *dcp = NULL;
if (err || zilset < 80)
/*
* 50% of the time, we create encrypted datasets
* using a random cipher suite and a hard-coded
* wrapping key.
*/
rand = ztest_random(2);
if (rand != 0) {
nvlist_t *crypto_args = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
/* slight bias towards the default cipher suite */
rand = ztest_random(ZIO_CRYPT_FUNCTIONS);
if (rand < ZIO_CRYPT_AES_128_CCM)
rand = ZIO_CRYPT_ON;
fnvlist_add_uint64(props,
zfs_prop_to_name(ZFS_PROP_ENCRYPTION), rand);
fnvlist_add_uint8_array(crypto_args, "wkeydata",
(uint8_t *)ztest_wkeydata, WRAPPING_KEY_LEN);
/*
* These parameters aren't really used by the kernel. They
* are simply stored so that userspace knows how to load
* the wrapping key.
*/
fnvlist_add_uint64(props,
zfs_prop_to_name(ZFS_PROP_KEYFORMAT), ZFS_KEYFORMAT_RAW);
fnvlist_add_string(props,
zfs_prop_to_name(ZFS_PROP_KEYLOCATION), "prompt");
fnvlist_add_uint64(props,
zfs_prop_to_name(ZFS_PROP_PBKDF2_SALT), 0ULL);
fnvlist_add_uint64(props,
zfs_prop_to_name(ZFS_PROP_PBKDF2_ITERS), 0ULL);
VERIFY0(dsl_crypto_params_create_nvlist(DCP_CMD_NONE, props,
crypto_args, &dcp));
fnvlist_free(crypto_args);
fnvlist_free(props);
}
err = dmu_objset_create(dsname, DMU_OST_OTHER, 0, dcp,
ztest_objset_create_cb, NULL);
dsl_crypto_params_free(dcp, !!err);
rand = ztest_random(100);
if (err || rand < 80)
return (err);
if (ztest_opts.zo_verbose >= 5)
@ -3556,7 +3639,8 @@ ztest_objset_destroy_cb(const char *name, void *arg)
/*
* Verify that the dataset contains a directory object.
*/
VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_TRUE, B_TRUE, FTAG, &os));
VERIFY0(ztest_dmu_objset_own(name, DMU_OST_OTHER, B_TRUE,
B_TRUE, FTAG, &os));
error = dmu_object_info(os, ZTEST_DIROBJ, &doi);
if (error != ENOENT) {
/* We could have crashed in the middle of destroying it */
@ -3640,11 +3724,12 @@ ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
* (invoked from ztest_objset_destroy_cb()) should just throw it away.
*/
if (ztest_random(2) == 0 &&
dmu_objset_own(name, DMU_OST_OTHER, B_FALSE,
ztest_dmu_objset_own(name, DMU_OST_OTHER, B_FALSE,
B_TRUE, FTAG, &os) == 0) {
ztest_zd_init(zdtmp, NULL, os);
zil_replay(os, zdtmp, ztest_replay_vector);
ztest_zd_fini(zdtmp);
txg_wait_synced(dmu_objset_pool(os), 0);
dmu_objset_disown(os, B_TRUE, FTAG);
}
@ -3659,8 +3744,8 @@ ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
/*
* Verify that the destroyed dataset is no longer in the namespace.
*/
VERIFY3U(ENOENT, ==, dmu_objset_own(name, DMU_OST_OTHER, B_TRUE, B_TRUE,
FTAG, &os));
VERIFY3U(ENOENT, ==, ztest_dmu_objset_own(name, DMU_OST_OTHER, B_TRUE,
B_TRUE, FTAG, &os));
/*
* Verify that we can create a new dataset.
@ -3674,7 +3759,7 @@ ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
fatal(0, "dmu_objset_create(%s) = %d", name, error);
}
VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, B_TRUE,
VERIFY0(ztest_dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, B_TRUE,
FTAG, &os));
ztest_zd_init(zdtmp, NULL, os);
@ -3710,10 +3795,11 @@ ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
/*
* Verify that we cannot own an objset that is already owned.
*/
VERIFY3U(EBUSY, ==,
dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, B_TRUE, FTAG, &os2));
VERIFY3U(EBUSY, ==, ztest_dmu_objset_own(name, DMU_OST_OTHER,
B_FALSE, B_TRUE, FTAG, &os2));
zil_close(zilog);
txg_wait_synced(spa_get_dsl(os->os_spa), 0);
dmu_objset_disown(os, B_TRUE, FTAG);
ztest_zd_fini(zdtmp);
out:
@ -3868,7 +3954,7 @@ ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
fatal(0, "dmu_objset_create(%s) = %d", clone2name, error);
}
error = dmu_objset_own(snap2name, DMU_OST_ANY, B_TRUE, B_TRUE,
error = ztest_dmu_objset_own(snap2name, DMU_OST_ANY, B_TRUE, B_TRUE,
FTAG, &os);
if (error)
fatal(0, "dmu_objset_own(%s) = %d", snap2name, error);
@ -6262,7 +6348,8 @@ ztest_dataset_open(int d)
}
ASSERT(error == 0 || error == EEXIST);
VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, B_TRUE, zd, &os));
VERIFY0(ztest_dmu_objset_own(name, DMU_OST_OTHER, B_FALSE,
B_TRUE, zd, &os));
(void) rw_unlock(&ztest_name_lock);
ztest_zd_init(zd, ZTEST_GET_SHARED_DS(d), os);
@ -6303,6 +6390,7 @@ ztest_dataset_close(int d)
ztest_ds_t *zd = &ztest_ds[d];
zil_close(zd->zd_zilog);
txg_wait_synced(spa_get_dsl(zd->zd_os->os_spa), 0);
dmu_objset_disown(zd->zd_os, B_TRUE, zd);
ztest_zd_fini(zd);
@ -6355,7 +6443,7 @@ ztest_run(ztest_shared_t *zs)
ztest_spa = spa;
dmu_objset_stats_t dds;
VERIFY0(dmu_objset_own(ztest_opts.zo_pool,
VERIFY0(ztest_dmu_objset_own(ztest_opts.zo_pool,
DMU_OST_ANY, B_TRUE, B_TRUE, FTAG, &os));
dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
dmu_objset_fast_stat(os, &dds);
@ -6582,11 +6670,10 @@ ztest_freeze(void)
VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
ASSERT(spa_freeze_txg(spa) == UINT64_MAX);
VERIFY3U(0, ==, ztest_dataset_open(0));
ztest_dataset_close(0);
spa->spa_debug = B_TRUE;
ztest_spa = spa;
txg_wait_synced(spa_get_dsl(spa), 0);
ztest_dataset_close(0);
ztest_reguid(NULL, 0);
spa_close(spa, FTAG);

12
config/user-libssl.m4 Normal file
View File

@ -0,0 +1,12 @@
dnl #
dnl # Check for libssl. Used for userspace password derivation via PBKDF2.
dnl #
AC_DEFUN([ZFS_AC_CONFIG_USER_LIBSSL], [
LIBSSL=
AC_CHECK_HEADER([openssl/evp.h], [], [AC_MSG_FAILURE([
*** evp.h missing, libssl-devel package required])])
AC_SUBST([LIBSSL], ["-lssl -lcrypto"])
AC_DEFINE([HAVE_LIBSSL], 1, [Define if you have libssl])
])

1
config/user.m4
View File

@ -13,6 +13,7 @@ AC_DEFUN([ZFS_AC_CONFIG_USER], [
ZFS_AC_CONFIG_USER_LIBBLKID
ZFS_AC_CONFIG_USER_LIBATTR
ZFS_AC_CONFIG_USER_LIBUDEV
ZFS_AC_CONFIG_USER_LIBSSL
ZFS_AC_CONFIG_USER_FRAME_LARGER_THAN
ZFS_AC_CONFIG_USER_RUNSTATEDIR
ZFS_AC_CONFIG_USER_MAKEDEV_IN_SYSMACROS

1
configure.ac
View File

@ -248,6 +248,7 @@ AC_CONFIG_FILES([
tests/zfs-tests/tests/functional/grow_pool/Makefile
tests/zfs-tests/tests/functional/grow_replicas/Makefile
tests/zfs-tests/tests/functional/history/Makefile
tests/zfs-tests/tests/functional/hkdf/Makefile
tests/zfs-tests/tests/functional/inheritance/Makefile
tests/zfs-tests/tests/functional/inuse/Makefile
tests/zfs-tests/tests/functional/large_files/Makefile

1
contrib/dracut/90zfs/module-setup.sh.in
View File

@ -25,6 +25,7 @@ installkernel() {
instmods znvpair
instmods zavl
instmods zunicode
instmods icp
instmods spl
instmods zlib_deflate
instmods zlib_inflate

1
include/sys/Makefile.am
View File

@ -35,6 +35,7 @@ COMMON_H = \
$(top_srcdir)/include/sys/dsl_userhold.h \
$(top_srcdir)/include/sys/edonr.h \
$(top_srcdir)/include/sys/efi_partition.h \
$(top_srcdir)/include/sys/hkdf.h \
$(top_srcdir)/include/sys/metaslab.h \
$(top_srcdir)/include/sys/metaslab_impl.h \
$(top_srcdir)/include/sys/mmp.h \

29
include/sys/hkdf.h Normal file
View File

@ -0,0 +1,29 @@
/*
* CDDL HEADER START
*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2017, Datto, Inc. All rights reserved.
*/
#ifndef _SYS_HKDF_H_
#define _SYS_HKDF_H_
#include <sys/types.h>
int hkdf_sha512(uint8_t *key_material, uint_t km_len, uint8_t *salt,
uint_t salt_len, uint8_t *info, uint_t info_len, uint8_t *output_key,
uint_t out_len);
#endif /* _SYS_HKDF_H_ */

15
include/sys/zio_crypt.h
View File

@ -32,18 +32,9 @@ struct zbookmark_phys;
#define WRAPPING_KEY_LEN 32
#define WRAPPING_IV_LEN ZIO_DATA_IV_LEN
#define WRAPPING_MAC_LEN 16
#define SHA1_DIGEST_LEN 20
#define SHA512_DIGEST_LEN 64
#define SHA512_HMAC_KEYLEN 64
#define WRAPPING_MAC_LEN ZIO_DATA_MAC_LEN
#define MASTER_KEY_MAX_LEN 32
#define L2ARC_DEFAULT_CRYPT ZIO_CRYPT_AES_256_CCM
/* utility macros */
#define BITS_TO_BYTES(x) ((x + NBBY - 1) / NBBY)
#define BYTES_TO_BITS(x) (x * NBBY)
#define SHA512_HMAC_KEYLEN 64
typedef enum zio_crypt_type {
ZC_TYPE_NONE = 0,
@ -133,7 +124,7 @@ int zio_crypt_do_indirect_mac_checksum(boolean_t generate, void *buf,
int zio_crypt_do_indirect_mac_checksum_abd(boolean_t generate, abd_t *abd,
uint_t datalen, boolean_t byteswap, uint8_t *cksum);
int zio_crypt_do_hmac(zio_crypt_key_t *key, uint8_t *data, uint_t datalen,
uint8_t *digestbuf);
uint8_t *digestbuf, uint_t digestlen);
int zio_crypt_do_objset_hmacs(zio_crypt_key_t *key, void *data, uint_t datalen,
boolean_t byteswap, uint8_t *portable_mac, uint8_t *local_mac);
int zio_do_crypt_data(boolean_t encrypt, zio_crypt_key_t *key, uint8_t *salt,

5
lib/libzfs/Makefile.am
View File

@ -30,6 +30,7 @@ USER_C = \
libzfs_util.c
KERNEL_C = \
algs/sha2/sha2.c \
zfeature_common.c \
zfs_comutil.c \
zfs_deleg.c \
@ -52,15 +53,13 @@ nodist_libzfs_la_SOURCES = \
libzfs_la_LIBADD = \
$(top_builddir)/lib/libefi/libefi.la \
$(top_builddir)/lib/libicp/libicp.la \
$(top_builddir)/lib/libnvpair/libnvpair.la \
$(top_builddir)/lib/libshare/libshare.la \
$(top_builddir)/lib/libtpool/libtpool.la \
$(top_builddir)/lib/libuutil/libuutil.la \
$(top_builddir)/lib/libzpool/libzpool.la \
$(top_builddir)/lib/libzfs_core/libzfs_core.la
libzfs_la_LIBADD += -lm $(LIBBLKID) $(LIBUDEV)
libzfs_la_LIBADD += -lm $(LIBBLKID) $(LIBUDEV) $(LIBSSL)
libzfs_la_LDFLAGS = -version-info 2:0:0
EXTRA_DIST = $(libzfs_pc_DATA) $(USER_C)

127
lib/libzfs/THIRDPARTYLICENSE.openssl Normal file
View File

@ -0,0 +1,127 @@
LICENSE ISSUES
==============
The OpenSSL toolkit stays under a dual license, i.e. both the conditions of
the OpenSSL License and the original SSLeay license apply to the toolkit.
See below for the actual license texts. Actually both licenses are BSD-style
Open Source licenses. In case of any license issues related to OpenSSL
please contact openssl-core@openssl.org.
OpenSSL License
---------------
/* ====================================================================
* Copyright (c) 1998-2008 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
Original SSLeay License
-----------------------
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/

1
lib/libzfs/THIRDPARTYLICENSE.openssl.descrip Normal file
View File

@ -0,0 +1 @@
PBKDF2 IMPLEMENTATION

170
lib/libzfs/libzfs_crypto.c
View File

@ -20,11 +20,11 @@
#include <sys/zfs_context.h>
#include <sys/fs/zfs.h>
#include <sys/dsl_crypt.h>
#include <sys/crypto/icp.h>
#include <libintl.h>
#include <termios.h>
#include <signal.h>
#include <errno.h>
#include <openssl/evp.h>
#include <libzfs.h>
#include "libzfs_impl.h"
#include "zfeature_common.h"
@ -437,139 +437,6 @@ error:
return (ret);
}
static int
pbkdf2(uint8_t *passphrase, size_t passphraselen, uint8_t *salt,
size_t saltlen, uint64_t iterations, uint8_t *output,
size_t outputlen)
{
int ret;
uint64_t iter;
uint32_t blockptr, i;
uint16_t hmac_key_len;
uint8_t *hmac_key;
uint8_t block[SHA1_DIGEST_LEN * 2];
uint8_t *hmacresult = block + SHA1_DIGEST_LEN;
crypto_mechanism_t mech;
crypto_key_t key;
crypto_data_t in_data, out_data;
crypto_ctx_template_t tmpl = NULL;
/* initialize output */
memset(output, 0, outputlen);
/* initialize icp for use */
icp_init();
/* HMAC key size is max(sizeof(uint32_t) + salt len, sha 256 len) */
if (saltlen > SHA1_DIGEST_LEN) {
hmac_key_len = saltlen + sizeof (uint32_t);
} else {
hmac_key_len = SHA1_DIGEST_LEN;
}
hmac_key = calloc(hmac_key_len, 1);
if (!hmac_key) {
ret = ENOMEM;
goto error;
}
/* initialize sha 256 hmac mechanism */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA1_HMAC);
mech.cm_param = NULL;
mech.cm_param_len = 0;
/* initialize passphrase as a crypto key */
key.ck_format = CRYPTO_KEY_RAW;
key.ck_length = BYTES_TO_BITS(passphraselen);
key.ck_data = passphrase;
/*
* initialize crypto data for the input data. length will change
* after the first iteration, so we will initialize it in the loop.
*/
in_data.cd_format = CRYPTO_DATA_RAW;
in_data.cd_offset = 0;
in_data.cd_raw.iov_base = (char *)hmac_key;
/* initialize crypto data for the output data */
out_data.cd_format = CRYPTO_DATA_RAW;
out_data.cd_offset = 0;
out_data.cd_length = SHA1_DIGEST_LEN;
out_data.cd_raw.iov_base = (char *)hmacresult;
out_data.cd_raw.iov_len = out_data.cd_length;
/* initialize the context template */
ret = crypto_create_ctx_template(&mech, &key, &tmpl, KM_SLEEP);
if (ret != CRYPTO_SUCCESS) {
ret = EIO;
goto error;
}
/* main loop */
for (blockptr = 0; blockptr < outputlen; blockptr += SHA1_DIGEST_LEN) {
/*
* for the first iteration, the HMAC key is the user-provided
* salt concatenated with the block index (1-indexed)
*/
i = htobe32(1 + (blockptr / SHA1_DIGEST_LEN));
memmove(hmac_key, salt, saltlen);
memmove(hmac_key + saltlen, (uint8_t *)(&i), sizeof (uint32_t));
/* block initializes to zeroes (no XOR) */
memset(block, 0, SHA1_DIGEST_LEN);
for (iter = 0; iter < iterations; iter++) {
if (iter > 0) {
in_data.cd_length = SHA1_DIGEST_LEN;
in_data.cd_raw.iov_len = in_data.cd_length;
} else {
in_data.cd_length = saltlen + sizeof (uint32_t);
in_data.cd_raw.iov_len = in_data.cd_length;
}
ret = crypto_mac(&mech, &in_data, &key, tmpl,
&out_data, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = EIO;
goto error;
}
/* HMAC key now becomes the output of this iteration */
memmove(hmac_key, hmacresult, SHA1_DIGEST_LEN);
/* XOR this iteration's result with the current block */
for (i = 0; i < SHA1_DIGEST_LEN; i++) {
block[i] ^= hmacresult[i];
}
}
/*
* compute length of this block, make sure we don't write
* beyond the end of the output, truncating if necessary
*/
if (blockptr + SHA1_DIGEST_LEN > outputlen) {
memmove(output + blockptr, block, outputlen - blockptr);
} else {
memmove(output + blockptr, block, SHA1_DIGEST_LEN);
}
}
crypto_destroy_ctx_template(tmpl);
free(hmac_key);
icp_fini();
return (0);
error:
crypto_destroy_ctx_template(tmpl);
if (hmac_key != NULL)
free(hmac_key);
icp_fini();
return (ret);
}
static int
derive_key(libzfs_handle_t *hdl, zfs_keyformat_t format, uint64_t iters,
uint8_t *key_material, size_t key_material_len, uint64_t salt,
@ -599,10 +466,12 @@ derive_key(libzfs_handle_t *hdl, zfs_keyformat_t format, uint64_t iters,
break;
case ZFS_KEYFORMAT_PASSPHRASE:
salt = LE_64(salt);
ret = pbkdf2(key_material, strlen((char *)key_material),
((uint8_t *)&salt), sizeof (uint64_t), iters,
key, WRAPPING_KEY_LEN);
if (ret != 0) {
ret = PKCS5_PBKDF2_HMAC_SHA1((char *)key_material,
strlen((char *)key_material), ((uint8_t *)&salt),
sizeof (uint64_t), iters, WRAPPING_KEY_LEN, key);
if (ret != 1) {
ret = EIO;
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Failed to generate key from passphrase."));
goto error;
@ -1207,9 +1076,13 @@ try_again:
ret = lzc_load_key(zhp->zfs_name, noop, key_data, WRAPPING_KEY_LEN);
if (ret != 0) {
switch (ret) {
case EPERM:
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"Permission denied."));
break;
case EINVAL:
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"Invalid parameters provided for %s."),
"Invalid parameters provided for dataset %s."),
zfs_get_name(zhp));
break;
case EEXIST:
@ -1318,6 +1191,10 @@ zfs_crypto_unload_key(zfs_handle_t *zhp)
if (ret != 0) {
switch (ret) {
case EPERM:
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"Permission denied."));
break;
case ENOENT:
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"Key already unloaded for '%s'."),
@ -1375,8 +1252,10 @@ zfs_crypto_verify_rewrap_nvlist(zfs_handle_t *zhp, nvlist_t *props,
new_props = zfs_valid_proplist(zhp->zfs_hdl, zhp->zfs_type, props,
zfs_prop_get_int(zhp, ZFS_PROP_ZONED), NULL, zhp->zpool_hdl,
B_TRUE, errbuf);
if (new_props == NULL)
if (new_props == NULL) {
ret = EINVAL;
goto error;
}
*props_out = new_props;
return (0);
@ -1475,6 +1354,13 @@ zfs_crypto_rewrap(zfs_handle_t *zhp, nvlist_t *raw_props, boolean_t inheritkey)
ret = nvlist_add_uint64(props,
zfs_prop_to_name(ZFS_PROP_KEYFORMAT),
keyformat);
if (ret != 0) {
zfs_error_aux(zhp->zfs_hdl,
dgettext(TEXT_DOMAIN, "Failed to "
"get existing keyformat "
"property."));
goto error;
}
}
if (keylocation == NULL) {
@ -1578,6 +1464,10 @@ zfs_crypto_rewrap(zfs_handle_t *zhp, nvlist_t *raw_props, boolean_t inheritkey)
ret = lzc_change_key(zhp->zfs_name, cmd, props, wkeydata, wkeylen);
if (ret != 0) {
switch (ret) {
case EPERM:
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"Permission denied."));
break;
case EINVAL:
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"Invalid properties for key change."));

13
lib/libzfs/libzfs_sendrecv.c
View File

@ -2657,6 +2657,13 @@ recv_fix_encryption_heirarchy(libzfs_handle_t *hdl, const char *destname,
int err;
nvpair_t *fselem = NULL;
nvlist_t *stream_fss;
char *cp;
char top_zfs[ZFS_MAX_DATASET_NAME_LEN];
(void) strcpy(top_zfs, destname);
cp = strrchr(top_zfs, '@');
if (cp != NULL)
*cp = '\0';
VERIFY(0 == nvlist_lookup_nvlist(stream_nv, "fss", &stream_fss));
@ -2758,9 +2765,11 @@ recv_fix_encryption_heirarchy(libzfs_handle_t *hdl, const char *destname,
/*
* If the dataset is not flagged as an encryption root and is
* currently an encryption root, force it to inherit from its
* parent.
* parent. The root of a raw send should never be
* force-inherited.
*/
if (!stream_encroot && is_encroot) {
if (!stream_encroot && is_encroot &&
strcmp(top_zfs, fsname) != 0) {
err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT,
NULL, NULL, 0);
if (err != 0) {

1
lib/libzpool/Makefile.am
View File

@ -68,6 +68,7 @@ KERNEL_C = \
dsl_destroy.c \
dsl_userhold.c \
edonr_zfs.c \
hkdf.c \
fm.c \
gzip.c \
lzjb.c \

56
man/man8/zfs.8
View File

@ -2179,18 +2179,31 @@ and
.Sy pbkdf2iters .
After entering an encryption key, the
created dataset will become an encryption root. Any descendant datasets will
inherit their encryption key from the encryption root, meaning that loading,
unloading, or changing the key for the encryption root will implicitly do the
same for all inheriting datasets. If this inheritence is not desired, simply
supply a new
.Sy encryption
and
inherit their encryption key from the encryption root by default, meaning that
loading, unloading, or changing the key for the encryption root will implicitly
do the same for all inheriting datasets. If this inheritance is not desired,
simply supply a
.Sy keyformat
when creating the child dataset or use
.Nm zfs Cm change-key
to break the relationship. The one exception is that clones will always use
their origin's encryption key. Encryption root inheritence can be tracked via
the read-only
to break an existing relationship, creating a new encryption root on the child.
Note that the child's
.Sy keyformat
may match that of the parent while still creating a new encryption root, and
that changing the
.Sy encryption
property alone does not create a new encryption root; this would simply use a
different cipher suite with the same key as its encryption root. The one
exception is that clones will always use their origin's encryption key.
As a result of this exception, some encryption-related properties (namely
.Sy keystatus ,
.Sy keyformat ,
.Sy keylocation ,
and
.Sy pbkdf2iters )
do not inherit like other ZFS properties and instead use the value determined
by their encryption root. Encryption root inheritance can be tracked via the
read-only
.Sy encryptionroot
property.
.Pp
@ -3165,7 +3178,10 @@ feature enabled.
If the
.Sy lz4_compress
feature is active on the sending system, then the receiving system must have
that feature enabled as well.
that feature enabled as well. Datasets that are sent with this flag may not be
received as an encrypted dataset, since encrypted datasets cannot use the
.Sy embedded_data
feature.
See
.Xr zpool-features 5
for details on ZFS feature flags and the
@ -3248,7 +3264,10 @@ Include the dataset's properties in the stream.
This flag is implicit when
.Fl R
is specified.
The receiving system must also support this feature.
The receiving system must also support this feature. Sends of encrypted datasets
must use
.Fl w
when using this flag.
.It Fl v, -verbose
Print verbose information about the stream package generated.
This information includes a per-second report of how much data has been sent.
@ -3339,8 +3358,10 @@ feature enabled.
If the
.Sy lz4_compress
feature is active on the sending system, then the receiving system must have
that feature enabled as well. Note that streams generated using this flag are
unable to be received into an encrypted dataset.
that feature enabled as well. Datasets that are sent with this flag may not be
received as an encrypted dataset, since encrypted datasets cannot use the
.Sy embedded_data
feature.
See
.Xr zpool-features 5
for details on ZFS feature flags and the
@ -3463,6 +3484,15 @@ is a special case because, even if
is a read-only property and cannot be set, it's allowed to receive the send
stream as a clone of the given snapshot.
.Pp
Raw encrypted send streams (created with
.Nm zfs Cm send Fl w
) may only be received as is, and cannot be re-encrypted, decrypted, or
recompressed by the receive process. Unencrypted streams can be received as
encrypted datasets, either through inheritance or by specifying encryption
parameters with the
.Fl o
options.
.Pp
The name of the snapshot
.Pq and file system, if a full stream is received
that this subcommand creates depends on the argument type and the use of the

13
module/icp/algs/sha2/sha2.c
View File

@ -52,7 +52,8 @@
static void Encode(uint8_t *, uint32_t *, size_t);
static void Encode64(uint8_t *, uint64_t *, size_t);
#if defined(__amd64)
/* userspace only supports the generic version */
#if defined(__amd64) && defined(_KERNEL)
#define SHA512Transform(ctx, in) SHA512TransformBlocks((ctx), (in), 1)
#define SHA256Transform(ctx, in) SHA256TransformBlocks((ctx), (in), 1)
@ -62,7 +63,7 @@ void SHA256TransformBlocks(SHA2_CTX *ctx, const void *in, size_t num);
#else
static void SHA256Transform(SHA2_CTX *, const uint8_t *);
static void SHA512Transform(SHA2_CTX *, const uint8_t *);
#endif /* __amd64 */
#endif /* __amd64 && _KERNEL */
static uint8_t PADDING[128] = { 0x80, /* all zeros */ };
@ -142,7 +143,7 @@ static uint8_t PADDING[128] = { 0x80, /* all zeros */ };
#endif /* _BIG_ENDIAN */
#if !defined(__amd64)
#if !defined(__amd64) || !defined(_KERNEL)
/* SHA256 Transform */
static void
@ -600,7 +601,7 @@ SHA512Transform(SHA2_CTX *ctx, const uint8_t *blk)
ctx->state.s64[7] += h;
}
#endif /* !__amd64 */
#endif /* !__amd64 || !_KERNEL */
/*
@ -838,7 +839,7 @@ SHA2Update(SHA2_CTX *ctx, const void *inptr, size_t input_len)
i = buf_len;
}
#if !defined(__amd64)
#if !defined(__amd64) || !defined(_KERNEL)
if (algotype <= SHA256_HMAC_GEN_MECH_INFO_TYPE) {
for (; i + buf_limit - 1 < input_len; i += buf_limit) {
SHA256Transform(ctx, &input[i]);
@ -866,7 +867,7 @@ SHA2Update(SHA2_CTX *ctx, const void *inptr, size_t input_len)
i += block_count << 7;
}
}
#endif /* !__amd64 */
#endif /* !__amd64 || !_KERNEL */
/*
* general optimization:

1
module/zfs/Makefile.in
View File

@ -41,6 +41,7 @@ $(MODULE)-objs += dsl_synctask.o
$(MODULE)-objs += edonr_zfs.o
$(MODULE)-objs += fm.o
$(MODULE)-objs += gzip.o
$(MODULE)-objs += hkdf.o
$(MODULE)-objs += lzjb.o
$(MODULE)-objs += lz4.o
$(MODULE)-objs += metaslab.o

23
module/zfs/arc.c
View File

@ -6698,6 +6698,9 @@ arc_write_ready(zio_t *zio)
HDR_SET_PSIZE(hdr, psize);
arc_hdr_set_compress(hdr, compress);
if (zio->io_error != 0 || psize == 0)
goto out;
/*
* Fill the hdr with data. If the buffer is encrypted we have no choice
* but to copy the data into b_radb. If the hdr is compressed, the data
@ -6713,6 +6716,7 @@ arc_write_ready(zio_t *zio)
* the data into it; otherwise, we share the data directly if we can.
*/
if (ARC_BUF_ENCRYPTED(buf)) {
ASSERT3U(psize, >, 0);
ASSERT(ARC_BUF_COMPRESSED(buf));
arc_hdr_alloc_abd(hdr, B_TRUE);
abd_copy(hdr->b_crypt_hdr.b_rabd, zio->io_abd, psize);
@ -6745,6 +6749,7 @@ arc_write_ready(zio_t *zio)
arc_share_buf(hdr, buf);
}
out:
arc_hdr_verify(hdr, bp);
spl_fstrans_unmark(cookie);
}
@ -8321,7 +8326,7 @@ l2arc_apply_transforms(spa_t *spa, arc_buf_hdr_t *hdr, uint64_t asize,
boolean_t bswap = (hdr->b_l1hdr.b_byteswap != DMU_BSWAP_NUMFUNCS);
dsl_crypto_key_t *dck = NULL;
uint8_t mac[ZIO_DATA_MAC_LEN] = { 0 };
boolean_t no_crypt;
boolean_t no_crypt = B_FALSE;
ASSERT((HDR_GET_COMPRESS(hdr) != ZIO_COMPRESS_OFF &&
!HDR_COMPRESSION_ENABLED(hdr)) ||
@ -8333,6 +8338,15 @@ l2arc_apply_transforms(spa_t *spa, arc_buf_hdr_t *hdr, uint64_t asize,
* and copy the data. This may be done to elimiate a depedency on a
* shared buffer or to reallocate the buffer to match asize.
*/
if (HDR_HAS_RABD(hdr) && asize != psize) {
ASSERT3U(size, ==, psize);
to_write = abd_alloc_for_io(asize, ismd);
abd_copy(to_write, hdr->b_crypt_hdr.b_rabd, size);
if (size != asize)
abd_zero_off(to_write, size, asize - size);
goto out;
}
if ((compress == ZIO_COMPRESS_OFF || HDR_COMPRESSION_ENABLED(hdr)) &&
!HDR_ENCRYPTED(hdr)) {
ASSERT3U(size, ==, psize);
@ -8377,11 +8391,8 @@ l2arc_apply_transforms(spa_t *spa, arc_buf_hdr_t *hdr, uint64_t asize,
if (ret != 0)
goto error;
if (no_crypt) {
spa_keystore_dsl_key_rele(spa, dck, FTAG);
abd_free(eabd);
goto out;
}
if (no_crypt)
abd_copy(eabd, to_write, psize);
if (psize != asize)
abd_zero_off(eabd, psize, asize - psize);

3
module/zfs/dbuf.c
View File

@ -1175,7 +1175,7 @@ dbuf_fix_old_data(dmu_buf_impl_t *db, uint64_t txg)
* or (if there a no active holders)
* just null out the current db_data pointer.
*/
ASSERT(dr->dr_txg >= txg - 2);
ASSERT3U(dr->dr_txg, >=, txg - 2);
if (db->db_blkid == DMU_BONUS_BLKID) {
dnode_t *dn = DB_DNODE(db);
int bonuslen = DN_SLOTS_TO_BONUSLEN(dn->dn_num_slots);
@ -3458,7 +3458,6 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx)
dn->dn_type, psize, lsize, compress_type);
} else if (compress_type != ZIO_COMPRESS_OFF) {
ASSERT3U(type, ==, ARC_BUFC_DATA);
int lsize = arc_buf_lsize(*datap);
*datap = arc_alloc_compressed_buf(os->os_spa, db,
psize, lsize, compress_type);
} else {

25
module/zfs/dmu_objset.c
View File

@ -706,7 +706,9 @@ dmu_objset_own(const char *name, dmu_objset_type_t type,
dsl_pool_rele(dp, FTAG);
if (dmu_objset_userobjspace_upgradable(*osp))
/* user accounting requires the dataset to be decrypted */
if (dmu_objset_userobjspace_upgradable(*osp) &&
(ds->ds_dir->dd_crypto_obj == 0 || decrypt))
dmu_objset_userobjspace_upgrade(*osp);
return (0);
@ -932,7 +934,7 @@ dmu_objset_create_impl_dnstats(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
if (blksz == 0)
blksz = DNODE_BLOCK_SIZE;
if (blksz == 0)
if (ibs == 0)
ibs = DN_MAX_INDBLKSHIFT;
if (ds != NULL)
@ -1096,7 +1098,7 @@ dmu_objset_create_sync(void *arg, dmu_tx_t *tx)
}
/*
* The doca_userfunc() will write out some data that needs to be
* The doca_userfunc() may write out some data that needs to be
* encrypted if the dataset is encrypted (specifically the root
* directory). This data must be written out before the encryption
* key mapping is removed by dsl_dataset_rele_flags(). Force the
@ -1107,10 +1109,14 @@ dmu_objset_create_sync(void *arg, dmu_tx_t *tx)
dsl_dataset_t *tmpds = NULL;
boolean_t need_sync_done = B_FALSE;
mutex_enter(&ds->ds_lock);
ds->ds_owner = FTAG;
mutex_exit(&ds->ds_lock);
rzio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
tmpds = txg_list_remove(&dp->dp_dirty_datasets, tx->tx_txg);
tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds,
tx->tx_txg);
if (tmpds != NULL) {
ASSERT3P(ds, ==, tmpds);
dsl_dataset_sync(ds, rzio, tx);
need_sync_done = B_TRUE;
}
@ -1120,9 +1126,9 @@ dmu_objset_create_sync(void *arg, dmu_tx_t *tx)
taskq_wait(dp->dp_sync_taskq);
rzio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
tmpds = txg_list_remove(&dp->dp_dirty_datasets, tx->tx_txg);
tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds,
tx->tx_txg);
if (tmpds != NULL) {
ASSERT3P(ds, ==, tmpds);
dmu_buf_rele(ds->ds_dbuf, ds);
dsl_dataset_sync(ds, rzio, tx);
}
@ -1130,6 +1136,10 @@ dmu_objset_create_sync(void *arg, dmu_tx_t *tx)
if (need_sync_done)
dsl_dataset_sync_done(ds, tx);
mutex_enter(&ds->ds_lock);
ds->ds_owner = NULL;
mutex_exit(&ds->ds_lock);
}
spa_history_log_internal_ds(ds, "create", tx, "");
@ -1336,6 +1346,7 @@ dmu_objset_upgrade_stop(objset_t *os)
mutex_exit(&os->os_upgrade_lock);
taskq_cancel_id(os->os_spa->spa_upgrade_taskq, id);
txg_wait_synced(os->os_spa->spa_dsl_pool, 0);
} else {
mutex_exit(&os->os_upgrade_lock);
}

6
module/zfs/dmu_send.c
View File

@ -517,7 +517,7 @@ dump_dnode(dmu_sendarg_t *dsp, const blkptr_t *bp, uint64_t object,
dnode_phys_t *dnp)
{
struct drr_object *drro = &(dsp->dsa_drr->drr_u.drr_object);
int bonuslen = P2ROUNDUP(dnp->dn_bonuslen, 8);
int bonuslen;
if (object < dsp->dsa_resume_object) {
/*
@ -558,6 +558,8 @@ dump_dnode(dmu_sendarg_t *dsp, const blkptr_t *bp, uint64_t object,
drro->drr_blksz > SPA_OLD_MAXBLOCKSIZE)
drro->drr_blksz = SPA_OLD_MAXBLOCKSIZE;
bonuslen = P2ROUNDUP(dnp->dn_bonuslen, 8);
if ((dsp->dsa_featureflags & DMU_BACKUP_FEATURE_RAW)) {
ASSERT(BP_IS_ENCRYPTED(bp));
@ -571,7 +573,7 @@ dump_dnode(dmu_sendarg_t *dsp, const blkptr_t *bp, uint64_t object,
/*
* Since we encrypt the entire bonus area, the (raw) part
* beyond the the bonuslen is actually nonzero, so we need
* beyond the bonuslen is actually nonzero, so we need
* to send it.
*/
if (bonuslen != 0) {

19
module/zfs/dsl_crypt.c
View File

@ -90,9 +90,9 @@ dsl_wrapping_key_free(dsl_wrapping_key_t *wkey)
if (wkey->wk_key.ck_data) {
bzero(wkey->wk_key.ck_data,
BITS_TO_BYTES(wkey->wk_key.ck_length));
CRYPTO_BITS2BYTES(wkey->wk_key.ck_length));
kmem_free(wkey->wk_key.ck_data,
BITS_TO_BYTES(wkey->wk_key.ck_length));
CRYPTO_BITS2BYTES(wkey->wk_key.ck_length));
}
refcount_destroy(&wkey->wk_refcnt);
@ -119,7 +119,7 @@ dsl_wrapping_key_create(uint8_t *wkeydata, zfs_keyformat_t keyformat,
}
wkey->wk_key.ck_format = CRYPTO_KEY_RAW;
wkey->wk_key.ck_length = BYTES_TO_BITS(WRAPPING_KEY_LEN);
wkey->wk_key.ck_length = CRYPTO_BYTES2BITS(WRAPPING_KEY_LEN);
bcopy(wkeydata, wkey->wk_key.ck_data, WRAPPING_KEY_LEN);
/* initialize the rest of the struct */
@ -433,7 +433,6 @@ dsl_crypto_can_set_keylocation(const char *dsname, const char *keylocation)
int ret = 0;
dsl_dir_t *dd = NULL;
dsl_pool_t *dp = NULL;
dsl_wrapping_key_t *wkey = NULL;
uint64_t rddobj;
/* hold the dsl dir */
@ -472,16 +471,12 @@ dsl_crypto_can_set_keylocation(const char *dsname, const char *keylocation)
goto out;
}
if (wkey != NULL)
dsl_wrapping_key_rele(wkey, FTAG);
dsl_dir_rele(dd, FTAG);
dsl_pool_rele(dp, FTAG);
return (0);
out:
if (wkey != NULL)
dsl_wrapping_key_rele(wkey, FTAG);
if (dd != NULL)
dsl_dir_rele(dd, FTAG);
if (dp != NULL)
@ -1831,6 +1826,8 @@ dsl_dataset_create_crypt_sync(uint64_t dsobj, dsl_dir_t *dd,
wkey->wk_ddobj = dd->dd_object;
}
ASSERT3P(wkey, !=, NULL);
/* Create or clone the DSL crypto key and activate the feature */
dd->dd_crypto_obj = dsl_crypto_key_create_sync(crypt, wkey, tx);
VERIFY0(zap_add(dp->dp_meta_objset, dd->dd_object,
@ -2488,7 +2485,8 @@ spa_do_crypt_mac_abd(boolean_t generate, spa_t *spa, uint64_t dsobj, abd_t *abd,
goto error;
/* perform the hmac */
ret = zio_crypt_do_hmac(&dck->dck_key, buf, datalen, digestbuf);
ret = zio_crypt_do_hmac(&dck->dck_key, buf, datalen,
digestbuf, ZIO_DATA_MAC_LEN);
if (ret != 0)
goto error;
@ -2604,8 +2602,7 @@ error:
abd_return_buf(cabd, cipherbuf, datalen);
}
if (dck != NULL)
spa_keystore_dsl_key_rele(spa, dck, FTAG);
spa_keystore_dsl_key_rele(spa, dck, FTAG);
return (ret);
}

171
module/zfs/hkdf.c Normal file
View File

@ -0,0 +1,171 @@
/*
* CDDL HEADER START
*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2017, Datto, Inc. All rights reserved.
*/
#include <sys/crypto/api.h>
#include <sys/sha2.h>
#include <sys/hkdf.h>
static int
hkdf_sha512_extract(uint8_t *salt, uint_t salt_len, uint8_t *key_material,
uint_t km_len, uint8_t *out_buf)
{
int ret;
crypto_mechanism_t mech;
crypto_key_t key;
crypto_data_t input_cd, output_cd;
/* initialize HMAC mechanism */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA512_HMAC);
mech.cm_param = NULL;
mech.cm_param_len = 0;
/* initialize the salt as a crypto key */
key.ck_format = CRYPTO_KEY_RAW;
key.ck_length = CRYPTO_BYTES2BITS(salt_len);
key.ck_data = salt;
/* initialize crypto data for the input and output data */
input_cd.cd_format = CRYPTO_DATA_RAW;
input_cd.cd_offset = 0;
input_cd.cd_length = km_len;
input_cd.cd_raw.iov_base = (char *)key_material;
input_cd.cd_raw.iov_len = input_cd.cd_length;
output_cd.cd_format = CRYPTO_DATA_RAW;
output_cd.cd_offset = 0;
output_cd.cd_length = SHA512_DIGEST_LENGTH;
output_cd.cd_raw.iov_base = (char *)out_buf;
output_cd.cd_raw.iov_len = output_cd.cd_length;
ret = crypto_mac(&mech, &input_cd, &key, NULL, &output_cd, NULL);
if (ret != CRYPTO_SUCCESS)
return (SET_ERROR(EIO));
return (0);
}
static int
hkdf_sha512_expand(uint8_t *extract_key, uint8_t *info, uint_t info_len,
uint8_t *out_buf, uint_t out_len)
{
int ret;
crypto_mechanism_t mech;
crypto_context_t ctx;
crypto_key_t key;
crypto_data_t T_cd, info_cd, c_cd;
uint_t i, T_len = 0, pos = 0;
uint8_t c;
uint_t N = (out_len + SHA512_DIGEST_LENGTH) / SHA512_DIGEST_LENGTH;
uint8_t T[SHA512_DIGEST_LENGTH];
if (N > 255)
return (SET_ERROR(EINVAL));
/* initialize HMAC mechanism */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA512_HMAC);
mech.cm_param = NULL;
mech.cm_param_len = 0;
/* initialize the salt as a crypto key */
key.ck_format = CRYPTO_KEY_RAW;
key.ck_length = CRYPTO_BYTES2BITS(SHA512_DIGEST_LENGTH);
key.ck_data = extract_key;
/* initialize crypto data for the input and output data */
T_cd.cd_format = CRYPTO_DATA_RAW;
T_cd.cd_offset = 0;
T_cd.cd_raw.iov_base = (char *)T;
c_cd.cd_format = CRYPTO_DATA_RAW;
c_cd.cd_offset = 0;
c_cd.cd_length = 1;
c_cd.cd_raw.iov_base = (char *)&c;
c_cd.cd_raw.iov_len = c_cd.cd_length;
info_cd.cd_format = CRYPTO_DATA_RAW;
info_cd.cd_offset = 0;
info_cd.cd_length = info_len;
info_cd.cd_raw.iov_base = (char *)info;
info_cd.cd_raw.iov_len = info_cd.cd_length;
for (i = 1; i <= N; i++) {
c = i;
T_cd.cd_length = T_len;
T_cd.cd_raw.iov_len = T_cd.cd_length;
ret = crypto_mac_init(&mech, &key, NULL, &ctx, NULL);
if (ret != CRYPTO_SUCCESS)
return (SET_ERROR(EIO));
ret = crypto_mac_update(ctx, &T_cd, NULL);
if (ret != CRYPTO_SUCCESS)
return (SET_ERROR(EIO));
ret = crypto_mac_update(ctx, &info_cd, NULL);
if (ret != CRYPTO_SUCCESS)
return (SET_ERROR(EIO));
ret = crypto_mac_update(ctx, &c_cd, NULL);
if (ret != CRYPTO_SUCCESS)
return (SET_ERROR(EIO));
T_len = SHA512_DIGEST_LENGTH;
T_cd.cd_length = T_len;
T_cd.cd_raw.iov_len = T_cd.cd_length;
ret = crypto_mac_final(ctx, &T_cd, NULL);
if (ret != CRYPTO_SUCCESS)
return (SET_ERROR(EIO));
bcopy(T, out_buf + pos,
(i != N) ? SHA512_DIGEST_LENGTH : (out_len - pos));
pos += SHA512_DIGEST_LENGTH;
}
return (0);
}
/*
* HKDF is designed to be a relatively fast function for deriving keys from a
* master key + a salt. We use this function to generate new encryption keys
* so as to avoid hitting the cryptographic limits of the underlying
* encryption modes. Note that, for the sake of deriving encryption keys, the
* info parameter is called the "salt" everywhere else in the code.
*/
int
hkdf_sha512(uint8_t *key_material, uint_t km_len, uint8_t *salt,
uint_t salt_len, uint8_t *info, uint_t info_len, uint8_t *output_key,
uint_t out_len)
{
int ret;
uint8_t extract_key[SHA512_DIGEST_LENGTH];
ret = hkdf_sha512_extract(salt, salt_len, key_material, km_len,
extract_key);
if (ret != 0)
return (ret);
ret = hkdf_sha512_expand(extract_key, info, info_len, output_key,
out_len);
if (ret != 0)
return (ret);
return (0);
}

29
module/zfs/zil.c
View File

@ -2115,6 +2115,21 @@ zil_suspend(const char *osname, void **cookiep)
return (0);
}
/*
* The ZIL has work to do. Ensure that the associated encryption
* key will remain mapped while we are committing the log by
* grabbing a reference to it. If the key isn't loaded we have no
* choice but to return an error until the wrapping key is loaded.
*/
if (os->os_encrypted && spa_keystore_create_mapping(os->os_spa,
dmu_objset_ds(os), FTAG) != 0) {
zilog->zl_suspend--;
mutex_exit(&zilog->zl_lock);
dsl_dataset_long_rele(dmu_objset_ds(os), suspend_tag);
dsl_dataset_rele(dmu_objset_ds(os), suspend_tag);
return (SET_ERROR(EBUSY));
}
zilog->zl_suspending = B_TRUE;
mutex_exit(&zilog->zl_lock);
@ -2127,6 +2142,20 @@ zil_suspend(const char *osname, void **cookiep)
cv_broadcast(&zilog->zl_cv_suspend);
mutex_exit(&zilog->zl_lock);
if (os->os_encrypted) {
/*
* Encrypted datasets need to wait for all data to be
* synced out before removing the mapping.
*
* XXX: Depending on the number of datasets with
* outstanding ZIL data on a given log device, this
* might cause spa_offline_log() to take a long time.
*/
txg_wait_synced(zilog->zl_dmu_pool, zilog->zl_destroy_txg);
VERIFY0(spa_keystore_remove_mapping(os->os_spa,
dmu_objset_id(os), FTAG));
}
if (cookiep == NULL)
zil_resume(os);
else

3
module/zfs/zio.c
View File

@ -2518,13 +2518,14 @@ zio_write_gang_block(zio_t *pio)
zp.zp_checksum = gio->io_prop.zp_checksum;
zp.zp_compress = ZIO_COMPRESS_OFF;
zp.zp_encrypt = gio->io_prop.zp_encrypt;
zp.zp_type = DMU_OT_NONE;
zp.zp_level = 0;
zp.zp_copies = gio->io_prop.zp_copies;
zp.zp_dedup = B_FALSE;
zp.zp_dedup_verify = B_FALSE;
zp.zp_nopwrite = B_FALSE;
zp.zp_encrypt = gio->io_prop.zp_encrypt;
zp.zp_byteorder = gio->io_prop.zp_byteorder;
bzero(zp.zp_salt, ZIO_DATA_SALT_LEN);
bzero(zp.zp_iv, ZIO_DATA_IV_LEN);
bzero(zp.zp_mac, ZIO_DATA_MAC_LEN);

229
module/zfs/zio_crypt.c
View File

@ -25,6 +25,7 @@
#include <sys/zio.h>
#include <sys/zil.h>
#include <sys/sha2.h>
#include <sys/hkdf.h>
/*
* This file is responsible for handling all of the details of generating
@ -198,176 +199,6 @@ zio_crypt_info_t zio_crypt_table[ZIO_CRYPT_FUNCTIONS] = {
{SUN_CKM_AES_GCM, ZC_TYPE_GCM, 32, "aes-256-gcm"}
};
static int
hkdf_sha512_extract(uint8_t *salt, uint_t salt_len, uint8_t *key_material,
uint_t km_len, uint8_t *out_buf)
{
int ret;
crypto_mechanism_t mech;
crypto_key_t key;
crypto_data_t input_cd, output_cd;
/* initialize HMAC mechanism */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA512_HMAC);
mech.cm_param = NULL;
mech.cm_param_len = 0;
/* initialize the salt as a crypto key */
key.ck_format = CRYPTO_KEY_RAW;
key.ck_length = BYTES_TO_BITS(salt_len);
key.ck_data = salt;
/* initialize crypto data for the input and output data */
input_cd.cd_format = CRYPTO_DATA_RAW;
input_cd.cd_offset = 0;
input_cd.cd_length = km_len;
input_cd.cd_raw.iov_base = (char *)key_material;
input_cd.cd_raw.iov_len = input_cd.cd_length;
output_cd.cd_format = CRYPTO_DATA_RAW;
output_cd.cd_offset = 0;
output_cd.cd_length = SHA512_DIGEST_LEN;
output_cd.cd_raw.iov_base = (char *)out_buf;
output_cd.cd_raw.iov_len = output_cd.cd_length;
ret = crypto_mac(&mech, &input_cd, &key, NULL, &output_cd, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = SET_ERROR(EIO);
goto error;
}
return (0);
error:
return (ret);
}
static int
hkdf_sha512_expand(uint8_t *extract_key, uint8_t *info, uint_t info_len,
uint8_t *out_buf, uint_t out_len)
{
int ret;
crypto_mechanism_t mech;
crypto_context_t ctx;
crypto_key_t key;
crypto_data_t T_cd, info_cd, c_cd;
uint_t i, T_len = 0, pos = 0;
uint8_t c;
uint_t N = (out_len + SHA512_DIGEST_LEN) / SHA512_DIGEST_LEN;
uint8_t T[SHA512_DIGEST_LEN];
if (N > 255)
return (SET_ERROR(EINVAL));
/* initialize HMAC mechanism */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA512_HMAC);
mech.cm_param = NULL;
mech.cm_param_len = 0;
/* initialize the salt as a crypto key */
key.ck_format = CRYPTO_KEY_RAW;
key.ck_length = BYTES_TO_BITS(SHA512_DIGEST_LEN);
key.ck_data = extract_key;
/* initialize crypto data for the input and output data */
T_cd.cd_format = CRYPTO_DATA_RAW;
T_cd.cd_offset = 0;
T_cd.cd_raw.iov_base = (char *)T;
c_cd.cd_format = CRYPTO_DATA_RAW;
c_cd.cd_offset = 0;
c_cd.cd_length = 1;
c_cd.cd_raw.iov_base = (char *)&c;
c_cd.cd_raw.iov_len = c_cd.cd_length;
info_cd.cd_format = CRYPTO_DATA_RAW;
info_cd.cd_offset = 0;
info_cd.cd_length = info_len;
info_cd.cd_raw.iov_base = (char *)info;
info_cd.cd_raw.iov_len = info_cd.cd_length;
for (i = 1; i <= N; i++) {
c = i;
T_cd.cd_length = T_len;
T_cd.cd_raw.iov_len = T_cd.cd_length;
ret = crypto_mac_init(&mech, &key, NULL, &ctx, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = SET_ERROR(EIO);
goto error;
}
ret = crypto_mac_update(ctx, &T_cd, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = SET_ERROR(EIO);
goto error;
}
ret = crypto_mac_update(ctx, &info_cd, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = SET_ERROR(EIO);
goto error;
}
ret = crypto_mac_update(ctx, &c_cd, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = SET_ERROR(EIO);
goto error;
}
T_len = SHA512_DIGEST_LEN;
T_cd.cd_length = T_len;
T_cd.cd_raw.iov_len = T_cd.cd_length;
ret = crypto_mac_final(ctx, &T_cd, NULL);
if (ret != CRYPTO_SUCCESS) {
ret = SET_ERROR(EIO);
goto error;
}
bcopy(T, out_buf + pos,
(i != N) ? SHA512_DIGEST_LEN : (out_len - pos));
pos += SHA512_DIGEST_LEN;
}
return (0);
error:
return (ret);
}
/*
* HKDF is designed to be a relatively fast function for deriving keys from a
* master key + a salt. We use this function to generate new encryption keys
* so as to avoid hitting the cryptographic limits of the underlying
* encryption modes. Note that, for the sake of deriving encryption keys, the
* info parameter is called the "salt" everywhere else in the code.
*/
static int
hkdf_sha512(uint8_t *key_material, uint_t km_len, uint8_t *salt,
uint_t salt_len, uint8_t *info, uint_t info_len, uint8_t *output_key,
uint_t out_len)
{
int ret;
uint8_t extract_key[SHA512_DIGEST_LEN];
ret = hkdf_sha512_extract(salt, salt_len, key_material, km_len,
extract_key);
if (ret != 0)
goto error;
ret = hkdf_sha512_expand(extract_key, info, info_len, output_key,
out_len);
if (ret != 0)
goto error;
return (0);
error:
return (ret);
}
void
zio_crypt_key_destroy(zio_crypt_key_t *key)
{
@ -421,11 +252,11 @@ zio_crypt_key_init(uint64_t crypt, zio_crypt_key_t *key)
/* initialize keys for the ICP */
key->zk_current_key.ck_format = CRYPTO_KEY_RAW;
key->zk_current_key.ck_data = key->zk_current_keydata;
key->zk_current_key.ck_length = BYTES_TO_BITS(keydata_len);
key->zk_current_key.ck_length = CRYPTO_BYTES2BITS(keydata_len);
key->zk_hmac_key.ck_format = CRYPTO_KEY_RAW;
key->zk_hmac_key.ck_data = &key->zk_hmac_key;
key->zk_hmac_key.ck_length = BYTES_TO_BITS(SHA512_HMAC_KEYLEN);
key->zk_hmac_key.ck_length = CRYPTO_BYTES2BITS(SHA512_HMAC_KEYLEN);
/*
* Initialize the crypto templates. It's ok if this fails because
@ -588,10 +419,10 @@ zio_do_crypt_uio(boolean_t encrypt, uint64_t crypt, crypto_key_t *key,
mech.cm_param_len = sizeof (CK_AES_CCM_PARAMS);
} else {
gcmp.ulIvLen = ZIO_DATA_IV_LEN;
gcmp.ulIvBits = BYTES_TO_BITS(ZIO_DATA_IV_LEN);
gcmp.ulIvBits = CRYPTO_BYTES2BITS(ZIO_DATA_IV_LEN);
gcmp.ulAADLen = auth_len;
gcmp.pAAD = authbuf;
gcmp.ulTagBits = BYTES_TO_BITS(maclen);
gcmp.ulTagBits = CRYPTO_BYTES2BITS(maclen);
gcmp.pIv = ivbuf;
mech.cm_param = (char *)(&gcmp);
@ -748,11 +579,11 @@ zio_crypt_key_unwrap(crypto_key_t *cwkey, uint64_t crypt, uint64_t guid,
/* initialize keys for ICP */
key->zk_current_key.ck_format = CRYPTO_KEY_RAW;
key->zk_current_key.ck_data = key->zk_current_keydata;
key->zk_current_key.ck_length = BYTES_TO_BITS(keydata_len);
key->zk_current_key.ck_length = CRYPTO_BYTES2BITS(keydata_len);
key->zk_hmac_key.ck_format = CRYPTO_KEY_RAW;
key->zk_hmac_key.ck_data = key->zk_hmac_keydata;
key->zk_hmac_key.ck_length = BYTES_TO_BITS(SHA512_HMAC_KEYLEN);
key->zk_hmac_key.ck_length = CRYPTO_BYTES2BITS(SHA512_HMAC_KEYLEN);
/*
* Initialize the crypto templates. It's ok if this fails because
@ -801,12 +632,14 @@ error:
int
zio_crypt_do_hmac(zio_crypt_key_t *key, uint8_t *data, uint_t datalen,
uint8_t *digestbuf)
uint8_t *digestbuf, uint_t digestlen)
{
int ret;
crypto_mechanism_t mech;
crypto_data_t in_data, digest_data;
uint8_t raw_digestbuf[SHA512_DIGEST_LEN];
uint8_t raw_digestbuf[SHA512_DIGEST_LENGTH];
ASSERT3U(digestlen, <=, SHA512_DIGEST_LENGTH);
/* initialize sha512-hmac mechanism and crypto data */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA512_HMAC);
@ -822,7 +655,7 @@ zio_crypt_do_hmac(zio_crypt_key_t *key, uint8_t *data, uint_t datalen,
digest_data.cd_format = CRYPTO_DATA_RAW;
digest_data.cd_offset = 0;
digest_data.cd_length = SHA512_DIGEST_LEN;
digest_data.cd_length = SHA512_DIGEST_LENGTH;
digest_data.cd_raw.iov_base = (char *)raw_digestbuf;
digest_data.cd_raw.iov_len = digest_data.cd_length;
@ -834,12 +667,12 @@ zio_crypt_do_hmac(zio_crypt_key_t *key, uint8_t *data, uint_t datalen,
goto error;
}
bcopy(raw_digestbuf, digestbuf, ZIO_DATA_MAC_LEN);
bcopy(raw_digestbuf, digestbuf, digestlen);
return (0);
error:
bzero(digestbuf, ZIO_DATA_MAC_LEN);
bzero(digestbuf, digestlen);
return (ret);
}
@ -848,9 +681,10 @@ zio_crypt_generate_iv_salt_dedup(zio_crypt_key_t *key, uint8_t *data,
uint_t datalen, uint8_t *ivbuf, uint8_t *salt)
{
int ret;
uint8_t digestbuf[SHA512_DIGEST_LEN];
uint8_t digestbuf[SHA512_DIGEST_LENGTH];
ret = zio_crypt_do_hmac(key, data, datalen, digestbuf);
ret = zio_crypt_do_hmac(key, data, datalen,
digestbuf, SHA512_DIGEST_LENGTH);
if (ret != 0)
return (ret);
@ -1212,8 +1046,8 @@ zio_crypt_do_objset_hmacs(zio_crypt_key_t *key, void *data, uint_t datalen,
objset_phys_t *osp = data;
uint64_t intval;
boolean_t le_bswap = (should_bswap == ZFS_HOST_BYTEORDER);
uint8_t raw_portable_mac[SHA512_DIGEST_LEN];
uint8_t raw_local_mac[SHA512_DIGEST_LEN];
uint8_t raw_portable_mac[SHA512_DIGEST_LENGTH];
uint8_t raw_local_mac[SHA512_DIGEST_LENGTH];
/* initialize HMAC mechanism */
mech.cm_type = crypto_mech2id(SUN_CKM_SHA512_HMAC);
@ -1267,7 +1101,7 @@ zio_crypt_do_objset_hmacs(zio_crypt_key_t *key, void *data, uint_t datalen,
goto error;
/* store the final digest in a temporary buffer and copy what we need */
cd.cd_length = SHA512_DIGEST_LEN;
cd.cd_length = SHA512_DIGEST_LENGTH;
cd.cd_raw.iov_base = (char *)raw_portable_mac;
cd.cd_raw.iov_len = cd.cd_length;
@ -1284,7 +1118,7 @@ zio_crypt_do_objset_hmacs(zio_crypt_key_t *key, void *data, uint_t datalen,
* objects are not present, the local MAC is zeroed out.
*/
if (osp->os_userused_dnode.dn_type == DMU_OT_NONE &&
osp->os_userused_dnode.dn_type == DMU_OT_NONE) {
osp->os_groupused_dnode.dn_type == DMU_OT_NONE) {
bzero(local_mac, ZIO_OBJSET_MAC_LEN);
return (0);
}
@ -1326,7 +1160,7 @@ zio_crypt_do_objset_hmacs(zio_crypt_key_t *key, void *data, uint_t datalen,
goto error;
/* store the final digest in a temporary buffer and copy what we need */
cd.cd_length = SHA512_DIGEST_LEN;
cd.cd_length = SHA512_DIGEST_LENGTH;
cd.cd_raw.iov_base = (char *)raw_local_mac;
cd.cd_raw.iov_len = cd.cd_length;
@ -1367,7 +1201,7 @@ zio_crypt_do_indirect_mac_checksum(boolean_t generate, void *buf,
blkptr_t *bp;
int i, epb = datalen >> SPA_BLKPTRSHIFT;
SHA2_CTX ctx;
uint8_t digestbuf[SHA512_DIGEST_LEN];
uint8_t digestbuf[SHA512_DIGEST_LENGTH];
/* checksum all of the MACs from the layer below */
SHA2Init(SHA512, &ctx);
@ -1468,7 +1302,7 @@ zio_crypt_init_uios_zil(boolean_t encrypt, uint8_t *plainbuf,
/* allocate the iovec arrays */
if (nr_src != 0) {
src_iovecs = kmem_alloc(nr_src * sizeof (iovec_t), KM_SLEEP);
if (!src_iovecs) {
if (src_iovecs == NULL) {
ret = SET_ERROR(ENOMEM);
goto error;
}
@ -1476,7 +1310,7 @@ zio_crypt_init_uios_zil(boolean_t encrypt, uint8_t *plainbuf,
if (nr_dst != 0) {
dst_iovecs = kmem_alloc(nr_dst * sizeof (iovec_t), KM_SLEEP);
if (!dst_iovecs) {
if (dst_iovecs == NULL) {
ret = SET_ERROR(ENOMEM);
goto error;
}
@ -1515,6 +1349,9 @@ zio_crypt_init_uios_zil(boolean_t encrypt, uint8_t *plainbuf,
aadp += sizeof (lr_t);
aad_len += sizeof (lr_t);
ASSERT3P(src_iovecs, !=, NULL);
ASSERT3P(dst_iovecs, !=, NULL);
/*
* If this is a TX_WRITE record we want to encrypt everything
* except the bp if exists. If the bp does exist we want to
@ -1655,7 +1492,7 @@ zio_crypt_init_uios_dnode(boolean_t encrypt, uint8_t *plainbuf,
if (nr_src != 0) {
src_iovecs = kmem_alloc(nr_src * sizeof (iovec_t), KM_SLEEP);
if (!src_iovecs) {
if (src_iovecs == NULL) {
ret = SET_ERROR(ENOMEM);
goto error;
}
@ -1663,7 +1500,7 @@ zio_crypt_init_uios_dnode(boolean_t encrypt, uint8_t *plainbuf,
if (nr_dst != 0) {
dst_iovecs = kmem_alloc(nr_dst * sizeof (iovec_t), KM_SLEEP);
if (!dst_iovecs) {
if (dst_iovecs == NULL) {
ret = SET_ERROR(ENOMEM);
goto error;
}
@ -1729,6 +1566,10 @@ zio_crypt_init_uios_dnode(boolean_t encrypt, uint8_t *plainbuf,
if (dnp->dn_type != DMU_OT_NONE &&
DMU_OT_IS_ENCRYPTED(dnp->dn_bonustype) &&
dnp->dn_bonuslen != 0) {
ASSERT3U(nr_iovecs, <, nr_src);
ASSERT3U(nr_iovecs, <, nr_dst);
ASSERT3P(src_iovecs, !=, NULL);
ASSERT3P(dst_iovecs, !=, NULL);
src_iovecs[nr_iovecs].iov_base = DN_BONUS(dnp);
src_iovecs[nr_iovecs].iov_len = crypt_len;
dst_iovecs[nr_iovecs].iov_base = DN_BONUS(&ddnp[i]);
@ -1942,7 +1783,7 @@ zio_do_crypt_data(boolean_t encrypt, zio_crypt_key_t *key, uint8_t *salt,
tmp_ckey.ck_format = CRYPTO_KEY_RAW;
tmp_ckey.ck_data = enc_keydata;
tmp_ckey.ck_length = BYTES_TO_BITS(keydata_len);
tmp_ckey.ck_length = CRYPTO_BYTES2BITS(keydata_len);
ckey = &tmp_ckey;
tmpl = NULL;

4
rpm/generic/zfs.spec.in
View File

@ -87,6 +87,8 @@ BuildRequires: libuuid-devel
BuildRequires: libblkid-devel
BuildRequires: libudev-devel
BuildRequires: libattr-devel
BuildRequires: openssl-devel
Requires: openssl
%endif
%if 0%{?_systemd}
Requires(post): systemd
@ -183,7 +185,7 @@ Requires: fio
Requires: acl
Requires: sudo
Requires: sysstat
Requires: rng-tools
Requires: rng-tools
%description test
This package contains test infrastructure and support scripts for

12
scripts/zloop.sh
View File

@ -146,6 +146,15 @@ function store_core
fi
}
rngdpid=""
function on_exit
{
if [ -n "$rngdpid" ]; then
kill -9 "$rngdpid"
fi
}
trap on_exit EXIT
# parse arguments
# expected format: zloop [-t timeout] [-c coredir] [-- extra ztest args]
coredir=$DEFAULTCOREDIR
@ -191,6 +200,9 @@ or_die rm -f ztest.history
or_die rm -f ztest.ddt
or_die rm -f ztest.cores
# start rngd in the background so we don't run out of entropy
or_die read -r rngdpid < <(rngd -f -r /dev/urandom & echo $!)
ztrc=0 # ztest return value
foundcrashes=0 # number of crashes found so far
starttime=$(date +%s)

3
tests/runfiles/linux.run
View File

@ -405,6 +405,9 @@ tests = ['history_001_pos', 'history_002_pos', 'history_003_pos',
'history_007_pos', 'history_008_pos', 'history_009_pos',
'history_010_pos']
[tests/functional/hkdf]
tests = ['run_hkdf_test']
[tests/functional/inheritance]
tests = ['inherit_001_pos']
pre =

1
tests/zfs-tests/include/commands.cfg
View File

@ -12,6 +12,7 @@ export SYSTEM_FILES='arp
attr
basename
bc
blkid
blockdev
bunzip2
bzcat

1
tests/zfs-tests/tests/functional/Makefile.am
View File

@ -21,6 +21,7 @@ SUBDIRS = \
grow_pool \
grow_replicas \
history \
hkdf \
inheritance \
inuse \
large_files \

12
tests/zfs-tests/tests/functional/cli_root/zpool_create/zpool_create_008_pos.ksh
View File

@ -44,6 +44,18 @@
verify_runnable "global"
if is_linux; then
# Versions of libblkid older than 2.27.0 will not always detect member
# devices of a pool, therefore skip this test case for old versions.
currentver="$(blkid -v | tr ',' ' ' | awk '/libblkid/ { print $6 }')"
requiredver="2.27.0"
if [ "$(printf "$requiredver\n$currentver" | sort -V | head -n1)" == \
"$currentver" ] && [ "$currentver" != "$requiredver" ]; then
log_unsupported "libblkid ($currentver) may not detect pools"
fi
fi
function cleanup
{
if [[ $exported_pool == true ]]; then

1
tests/zfs-tests/tests/functional/hkdf/.gitignore vendored Normal file
View File

@ -0,0 +1 @@
hkdf_test

21
tests/zfs-tests/tests/functional/hkdf/Makefile.am Normal file
View File

@ -0,0 +1,21 @@
include $(top_srcdir)/config/Rules.am
AM_CPPFLAGS += -I$(top_srcdir)/include
AM_CPPFLAGS += -I$(top_srcdir)/lib/libspl/include
LDADD = $(top_srcdir)/lib/libicp/libicp.la
LDADD += $(top_srcdir)/lib/libzpool/libzpool.la
AUTOMAKE_OPTIONS = subdir-objects
pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/hkdf
dist_pkgdata_SCRIPTS = \
setup.ksh \
cleanup.ksh \
run_hkdf_test.ksh
pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/hkdf
pkgexec_PROGRAMS = \
hkdf_test
hkdf_test_SOURCES = hkdf_test.c

22
tests/zfs-tests/tests/functional/hkdf/cleanup.ksh Executable file
View File

@ -0,0 +1,22 @@
#!/bin/ksh
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2017 by Datto Inc. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
verify_runnable "global"
log_pass

235
tests/zfs-tests/tests/functional/hkdf/hkdf_test.c Normal file
View File

@ -0,0 +1,235 @@
/*
* CDDL HEADER START
*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2017, Datto, Inc. All rights reserved.
*/
#include <stdio.h>
#include <strings.h>
#include <sys/crypto/icp.h>
#include <sys/sha2.h>
#include <sys/hkdf.h>
#define NELEMS(x) (sizeof (x) / sizeof ((x)[0]))
/*
* Byte arrays are given as char pointers so that they
* can be specified as strings.
*/
typedef struct hkdf_tv {
/* test vector input values */
char *ikm;
uint_t ikm_len;
char *salt;
uint_t salt_len;
char *info;
uint_t info_len;
uint_t okm_len;
/* expected output */
char *okm;
} hkdf_tv_t;
/*
* XXX Neither NIST nor IETF has published official test
* vectors for testing HKDF with SHA512. The following
* vectors should be updated if these are ever published.
* The current vectors were taken from:
* https://www.kullo.net/blog/hkdf-sha-512-test-vectors/
*/
static hkdf_tv_t test_vectors[] = {
{
.ikm = "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b\x0b\x0b\x0b",
.ikm_len = 22,
.salt = "\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c",
.salt_len = 13,
.info = "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9",
.info_len = 10,
.okm_len = 42,
.okm = "\x83\x23\x90\x08\x6c\xda\x71\xfb"
"\x47\x62\x5b\xb5\xce\xb1\x68\xe4"
"\xc8\xe2\x6a\x1a\x16\xed\x34\xd9"
"\xfc\x7f\xe9\x2c\x14\x81\x57\x93"
"\x38\xda\x36\x2c\xb8\xd9\xf9\x25"
"\xd7\xcb",
},
{
.ikm = "\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17"
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
"\x20\x21\x22\x23\x24\x25\x26\x27"
"\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
"\x30\x31\x32\x33\x34\x35\x36\x37"
"\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
"\x40\x41\x42\x43\x44\x45\x46\x47"
"\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f",
.ikm_len = 80,
.salt = "\x60\x61\x62\x63\x64\x65\x66\x67"
"\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
"\x70\x71\x72\x73\x74\x75\x76\x77"
"\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
"\x80\x81\x82\x83\x84\x85\x86\x87"
"\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
"\x90\x91\x92\x93\x94\x95\x96\x97"
"\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf",
.salt_len = 80,
.info = "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7"
"\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7"
"\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7"
"\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
"\xe8\xe9\xea\xeb\xec\xed\xee\xef"
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
.info_len = 80,
.okm_len = 42,
.okm = "\xce\x6c\x97\x19\x28\x05\xb3\x46"
"\xe6\x16\x1e\x82\x1e\xd1\x65\x67"
"\x3b\x84\xf4\x00\xa2\xb5\x14\xb2"
"\xfe\x23\xd8\x4c\xd1\x89\xdd\xf1"
"\xb6\x95\xb4\x8c\xbd\x1c\x83\x88"
"\x44\x11\x37\xb3\xce\x28\xf1\x6a"
"\xa6\x4b\xa3\x3b\xa4\x66\xb2\x4d"
"\xf6\xcf\xcb\x02\x1e\xcf\xf2\x35"
"\xf6\xa2\x05\x6c\xe3\xaf\x1d\xe4"
"\x4d\x57\x20\x97\xa8\x50\x5d\x9e"
"\x7a\x93",
},
{
.ikm = "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b\x0b\x0b\x0b",
.ikm_len = 22,
.salt = NULL,
.salt_len = 0,
.info = NULL,
.info_len = 0,
.okm_len = 42,
.okm = "\xf5\xfa\x02\xb1\x82\x98\xa7\x2a"
"\x8c\x23\x89\x8a\x87\x03\x47\x2c"
"\x6e\xb1\x79\xdc\x20\x4c\x03\x42"
"\x5c\x97\x0e\x3b\x16\x4b\xf9\x0f"
"\xff\x22\xd0\x48\x36\xd0\xe2\x34"
"\x3b\xac",
},
{
.ikm = "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b"
"\x0b\x0b\x0b",
.ikm_len = 11,
.salt = "\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c",
.salt_len = 13,
.info = "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9",
.info_len = 10,
.okm_len = 42,
.okm = "\x74\x13\xe8\x99\x7e\x02\x06\x10"
"\xfb\xf6\x82\x3f\x2c\xe1\x4b\xff"
"\x01\x87\x5d\xb1\xca\x55\xf6\x8c"
"\xfc\xf3\x95\x4d\xc8\xaf\xf5\x35"
"\x59\xbd\x5e\x30\x28\xb0\x80\xf7"
"\xc0\x68",
},
{
.ikm = "\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c"
"\x0c\x0c\x0c\x0c\x0c\x0c\x0c\x0c"
"\x0c\x0c\x0c\x0c\x0c\x0c",
.ikm_len = 22,
.salt = NULL,
.salt_len = 0,
.info = NULL,
.info_len = 0,
.okm_len = 42,
.okm = "\x14\x07\xd4\x60\x13\xd9\x8b\xc6"
"\xde\xce\xfc\xfe\xe5\x5f\x0f\x90"
"\xb0\xc7\xf6\x3d\x68\xeb\x1a\x80"
"\xea\xf0\x7e\x95\x3c\xfc\x0a\x3a"
"\x52\x40\xa1\x55\xd6\xe4\xda\xa9"
"\x65\xbb",
},
};
static void
hexdump(char *str, uint8_t *src, uint_t len)
{
int i;
printf("\t%s\t", str);
for (i = 0; i < len; i++) {
printf("%02x", src[i] & 0xff);
}
printf("\n");
}
static int
run_test(int i, hkdf_tv_t *tv)
{
int ret;
uint8_t okey[SHA512_DIGEST_LENGTH];
printf("TEST %d:\t", i);
ret = hkdf_sha512((uint8_t *)tv->ikm, tv->ikm_len, (uint8_t *)tv->salt,
tv->salt_len, (uint8_t *)tv->info, tv->info_len, okey, tv->okm_len);
if (ret != 0) {
printf("HKDF failed with error code %d\n", ret);
return (ret);
}
if (bcmp(okey, tv->okm, tv->okm_len) != 0) {
printf("Output Mismatch\n");
hexdump("Expected:", (uint8_t *)tv->okm, tv->okm_len);
hexdump("Actual: ", okey, tv->okm_len);
return (1);
}
printf("Passed\n");
return (0);
}
int
main(int argc, char **argv)
{
int ret, i;
icp_init();
for (i = 0; i < NELEMS(test_vectors); i++) {
ret = run_test(i, &test_vectors[i]);
if (ret != 0)
break;
}
icp_fini();
if (ret == 0) {
printf("All tests passed successfully.\n");
return (0);
} else {
printf("Test failed.\n");
return (1);
}
}

30
tests/zfs-tests/tests/functional/hkdf/run_hkdf_test.ksh Executable file
View File

@ -0,0 +1,30 @@
#!/bin/ksh
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2017 by Datto Inc. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
#
# DESCRIPTION:
# Call the hkdf_test tool to test ZFS's HKDF implementation against
# a few test vectors.
#
log_assert "Run the tests for the HKDF algorithm."
log_must $STF_SUITE/tests/functional/hkdf/hkdf_test
log_pass "HKDF tests pass."

22
tests/zfs-tests/tests/functional/hkdf/setup.ksh Executable file
View File

@ -0,0 +1,22 @@
#!/bin/ksh
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2017 by Datto Inc. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
verify_runnable "global"
log_pass