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Detect and prevent mixed raw and non-raw sends 

Currently, there is an issue in the raw receive code where
raw receives are allowed to happen on top of previously
non-raw received datasets. This is a problem because the
source-side dataset doesn't know about how the blocks on
the destination were encrypted. As a result, any MAC in
the objset's checksum-of-MACs tree that is a parent of both
blocks encrypted on the source and blocks encrypted by the
destination will be incorrect. This will result in
authentication errors when we decrypt the dataset.

This patch fixes this issue by adding a new check to the
raw receive code. The code now maintains an "IVset guid",
which acts as an identifier for the set of IVs used to
encrypt a given snapshot. When a snapshot is raw received,
the destination snapshot will take this value from the
DRR_BEGIN payload. Non-raw receives and normal "zfs snap"
operations will cause ZFS to generate a new IVset guid.
When a raw incremental stream is received, ZFS will check
that the "from" IVset guid in the stream matches that of
the "from" destination snapshot. If they do not match, the
code will error out the receive, preventing the problem.

This patch requires an on-disk format change to add the
IVset guids to snapshots and bookmarks. As a result, this
patch has errata handling and a tunable to help affected
users resolve the issue with as little interruption as
possible.

Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matt Ahrens <mahrens@delphix.com>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8308
This commit is contained in:
Tom Caputi 2019-02-04 14:24:55 -05:00 committed by Brian Behlendorf
parent 579ce7c5ae
commit f00ab3f22c
27 changed files with 607 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
cmd/zpool/zpool_main.c
View File

@ -2478,6 +2478,17 @@ show_import(nvlist_t *config)
"old ones.\n"));
break;
case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
(void) printf(gettext(" action: Existing "
"encrypted datasets contain an on-disk "
"incompatibility which\n\tmay cause "
"on-disk corruption with 'zfs recv' and "
"which needs to be\n\tcorrected. Enable "
"the bookmark_v2 feature and backup "
"these datasets to new encrypted "
"datasets and\n\tdestroy the "
"old ones.\n"));
break;
default:
/*
* All errata must contain an action message.
@ -7401,6 +7412,17 @@ status_callback(zpool_handle_t *zhp, void *data)
"mount existing encrypted datasets readonly.\n"));
break;
case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
(void) printf(gettext("\tExisting encrypted datasets "
"contain an on-disk incompatibility\n\twhich "
"needs to be corrected.\n"));
(void) printf(gettext("action: To correct the issue "
"enable the bookmark_v2 feature and "
"backup\n\texisting encrypted datasets to new "
"encrypted datasets and\n\tdestroy the old "
"ones.\n"));
break;
default:
/*
* All errata which allow the pool to be imported

2
include/sys/dmu_recv.h
View File

@ -51,7 +51,9 @@ typedef struct dmu_recv_cookie {
struct avl_tree *drc_guid_to_ds_map;
nvlist_t *drc_keynvl;
zio_cksum_t drc_cksum;
uint64_t drc_fromsnapobj;
uint64_t drc_newsnapobj;
uint64_t drc_ivset_guid;
void *drc_owner;
cred_t *drc_cred;
} dmu_recv_cookie_t;

5
include/sys/dsl_crypt.h
View File

@ -189,12 +189,13 @@ void key_mapping_rele(spa_t *spa, dsl_key_mapping_t *km, void *tag);
int spa_keystore_lookup_key(spa_t *spa, uint64_t dsobj, void *tag,
dsl_crypto_key_t **dck_out);
int dsl_crypto_populate_key_nvlist(struct dsl_dataset *ds, nvlist_t **nvl_out);
int dsl_crypto_populate_key_nvlist(struct dsl_dataset *ds,
uint64_t from_ivset_guid, nvlist_t **nvl_out);
int dsl_crypto_recv_raw_key_check(struct dsl_dataset *ds,
nvlist_t *nvl, dmu_tx_t *tx);
void dsl_crypto_recv_raw_key_sync(struct dsl_dataset *ds,
nvlist_t *nvl, dmu_tx_t *tx);
int dsl_crypto_recv_raw(const char *poolname, uint64_t dsobj,
int dsl_crypto_recv_raw(const char *poolname, uint64_t dsobj, uint64_t fromobj,
dmu_objset_type_t ostype, nvlist_t *nvl, boolean_t do_key);
int spa_keystore_change_key(const char *dsname, dsl_crypto_params_t *dcp);

6
include/sys/dsl_dataset.h
View File

@ -114,6 +114,12 @@ struct dsl_key_mapping;
*/
#define DS_FIELD_REMAP_DEADLIST "com.delphix:remap_deadlist"
/*
* This field is set to the ivset guid for encrypted snapshots. This is used
* for validating raw receives.
*/
#define DS_FIELD_IVSET_GUID "com.datto:ivset_guid"
/*
* DS_FLAG_CI_DATASET is set if the dataset contains a file system whose
* name lookups should be performed case-insensitively.

4
include/sys/fs/zfs.h
View File

@ -183,6 +183,7 @@ typedef enum {
ZFS_PROP_KEYSTATUS,
ZFS_PROP_REMAPTXG, /* not exposed to the user */
ZFS_PROP_SPECIAL_SMALL_BLOCKS,
ZFS_PROP_IVSET_GUID, /* not exposed to the user */
ZFS_NUM_PROPS
} zfs_prop_t;
@ -975,6 +976,7 @@ typedef enum zpool_errata {
ZPOOL_ERRATA_ZOL_2094_SCRUB,
ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY,
ZPOOL_ERRATA_ZOL_6845_ENCRYPTION,
ZPOOL_ERRATA_ZOL_8308_ENCRYPTION,
} zpool_errata_t;
/*
@ -1264,6 +1266,8 @@ typedef enum {
ZFS_ERR_IOC_ARG_REQUIRED,
ZFS_ERR_IOC_ARG_BADTYPE,
ZFS_ERR_WRONG_PARENT,
ZFS_ERR_FROM_IVSET_GUID_MISSING,
ZFS_ERR_FROM_IVSET_GUID_MISMATCH,
} zfs_errno_t;
/*

1
lib/libzfs/libzfs_iter.c
View File

@ -215,6 +215,7 @@ zfs_iter_bookmarks(zfs_handle_t *zhp, zfs_iter_f func, void *data)
fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_GUID));
fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_CREATETXG));
fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_CREATION));
fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_IVSET_GUID));
if ((err = lzc_get_bookmarks(zhp->zfs_name, props, &bmarks)) != 0)
goto out;

14
lib/libzfs/libzfs_sendrecv.c
View File

@ -4392,6 +4392,20 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
"destination %s space quota exceeded."), name);
(void) zfs_error(hdl, EZFS_NOSPC, errbuf);
break;
case ZFS_ERR_FROM_IVSET_GUID_MISSING:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"IV set guid missing. See errata %u at"
"http://zfsonlinux.org/msg/ZFS-8000-ER"),
ZPOOL_ERRATA_ZOL_8308_ENCRYPTION);
(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
break;
case ZFS_ERR_FROM_IVSET_GUID_MISMATCH:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"IV set guid mismatch. See the 'zfs receive' "
"man page section\n discussing the limitations "
"of raw encrypted send streams."));
(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
break;
case EBUSY:
if (hastoken) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,

1
lib/libzfs_core/libzfs_core.c
View File

@ -1124,6 +1124,7 @@ lzc_bookmark(nvlist_t *bookmarks, nvlist_t **errlist)
* "guid" - globally unique identifier of the snapshot it refers to
* "createtxg" - txg when the snapshot it refers to was created
* "creation" - timestamp when the snapshot it refers to was created
* "ivsetguid" - IVset guid for identifying encrypted snapshots
*
* The format of the returned nvlist as follows:
* <short name of bookmark> -> {

25
man/man8/zfs.8
View File

@ -3845,6 +3845,31 @@ parameters with the
.Fl o
options.
.Pp
The added security provided by raw sends adds some restrictions to the send
and receive process. ZFS will not allow a mix of raw receives and non-raw
receives. Specifically, any raw incremental receives that are attempted after
a non-raw receive will fail. Non-raw receives do not have this restriction and,
therefore, are always possible. Because of this, it is best practice to always
use either raw sends for their security benefits or non-raw sends for their
flexibility when working with encrypted datasets, but not a combination.
.Pp
The reason for this restriction stems from the inherent restrictions of the
AEAD ciphers that ZFS uses to encrypt data. When using ZFS native encryption,
each block of data is encrypted against a randomly generated number known as
the "initialization vector" (IV), which is stored in the filesystem metadata.
This number is required by the encryption algorithms whenever the data is to
be decrypted. Together, all of the IVs provided for all of the blocks in a
given snapshot are collectively called an "IV set". When ZFS performs a raw
send, the IV set is transferred from the source to the destination in the send
stream. When ZFS performs a non-raw send, the data is decrypted by the source
system and re-encrypted by the destination system, creating a snapshot with
effectively the same data, but a different IV set. In order for decryption to
work after a raw send, ZFS must ensure that the IV set used on both the source
and destination side match. When an incremental raw receive is performed on
top of an existing snapshot, ZFS will check to confirm that the "from"
snapshot on both the source and destination were using the same IV set,
ensuring the new IV set is consistent.
.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

2
module/zcommon/zfeature_common.c
View File

@ -442,6 +442,7 @@ zpool_feature_init(void)
{
static const spa_feature_t bookmark_v2_deps[] = {
SPA_FEATURE_EXTENSIBLE_DATASET,
SPA_FEATURE_BOOKMARKS,
SPA_FEATURE_NONE
};
zfeature_register(SPA_FEATURE_BOOKMARK_V2,
@ -453,6 +454,7 @@ zpool_feature_init(void)
{
static const spa_feature_t encryption_deps[] = {
SPA_FEATURE_EXTENSIBLE_DATASET,
SPA_FEATURE_BOOKMARK_V2,
SPA_FEATURE_NONE
};
zfeature_register(SPA_FEATURE_ENCRYPTION,

3
module/zcommon/zfs_prop.c
View File

@ -559,6 +559,9 @@ zfs_prop_init(void)
PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE");
zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT");
zprop_register_hidden(ZFS_PROP_IVSET_GUID, "ivsetguid",
PROP_TYPE_NUMBER, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "IVSETGUID");
zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP");
zprop_register_hidden(ZFS_PROP_PBKDF2_SALT, "pbkdf2salt",

62
module/zfs/dmu_recv.c
View File

@ -72,7 +72,6 @@ typedef struct dmu_recv_begin_arg {
dmu_recv_cookie_t *drba_cookie;
cred_t *drba_cred;
dsl_crypto_params_t *drba_dcp;
uint64_t drba_snapobj;
} dmu_recv_begin_arg_t;
static int
@ -128,7 +127,7 @@ recv_begin_check_existing_impl(dmu_recv_begin_arg_t *drba, dsl_dataset_t *ds,
dsl_dataset_t *snap;
uint64_t obj = dsl_dataset_phys(ds)->ds_prev_snap_obj;
/* Can't perform a raw receive on top of a non-raw receive */
/* Can't raw receive on top of an unencrypted dataset */
if (!encrypted && raw)
return (SET_ERROR(EINVAL));
@ -155,7 +154,7 @@ recv_begin_check_existing_impl(dmu_recv_begin_arg_t *drba, dsl_dataset_t *ds,
return (SET_ERROR(ENODEV));
if (drba->drba_cookie->drc_force) {
drba->drba_snapobj = obj;
drba->drba_cookie->drc_fromsnapobj = obj;
} else {
/*
* If we are not forcing, there must be no
@ -165,7 +164,8 @@ recv_begin_check_existing_impl(dmu_recv_begin_arg_t *drba, dsl_dataset_t *ds,
dsl_dataset_rele(snap, FTAG);
return (SET_ERROR(ETXTBSY));
}
drba->drba_snapobj = ds->ds_prev->ds_object;
drba->drba_cookie->drc_fromsnapobj =
ds->ds_prev->ds_object;
}
dsl_dataset_rele(snap, FTAG);
@ -200,7 +200,7 @@ recv_begin_check_existing_impl(dmu_recv_begin_arg_t *drba, dsl_dataset_t *ds,
return (SET_ERROR(EINVAL));
}
drba->drba_snapobj = 0;
drba->drba_cookie->drc_fromsnapobj = 0;
}
return (0);
@ -440,7 +440,7 @@ dmu_recv_begin_sync(void *arg, dmu_tx_t *tx)
* the raw cmd set. Raw incremental recvs do not use a dcp
* since the encryption parameters are already set in stone.
*/
if (dcp == NULL && drba->drba_snapobj == 0 &&
if (dcp == NULL && drba->drba_cookie->drc_fromsnapobj == 0 &&
drba->drba_origin == NULL) {
ASSERT3P(dcp, ==, NULL);
dcp = &dummy_dcp;
@ -454,15 +454,15 @@ dmu_recv_begin_sync(void *arg, dmu_tx_t *tx)
/* create temporary clone */
dsl_dataset_t *snap = NULL;
if (drba->drba_snapobj != 0) {
if (drba->drba_cookie->drc_fromsnapobj != 0) {
VERIFY0(dsl_dataset_hold_obj(dp,
drba->drba_snapobj, FTAG, &snap));
drba->drba_cookie->drc_fromsnapobj, FTAG, &snap));
ASSERT3P(dcp, ==, NULL);
}
dsobj = dsl_dataset_create_sync(ds->ds_dir, recv_clone_name,
snap, crflags, drba->drba_cred, dcp, tx);
if (drba->drba_snapobj != 0)
if (drba->drba_cookie->drc_fromsnapobj != 0)
dsl_dataset_rele(snap, FTAG);
dsl_dataset_rele_flags(ds, dsflags, FTAG);
} else {
@ -2526,11 +2526,16 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp,
* the keynvl away until then.
*/
err = dsl_crypto_recv_raw(spa_name(ra->os->os_spa),
drc->drc_ds->ds_object, drc->drc_drrb->drr_type,
keynvl, drc->drc_newfs);
drc->drc_ds->ds_object, drc->drc_fromsnapobj,
drc->drc_drrb->drr_type, keynvl, drc->drc_newfs);
if (err != 0)
goto out;
/* see comment in dmu_recv_end_sync() */
drc->drc_ivset_guid = 0;
(void) nvlist_lookup_uint64(keynvl, "to_ivset_guid",
&drc->drc_ivset_guid);
if (!drc->drc_newfs)
drc->drc_keynvl = fnvlist_dup(keynvl);
}
@ -2591,10 +2596,10 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp,
sizeof (struct receive_record_arg) + ra->rrd->payload_size);
ra->rrd = NULL;
}
if (ra->next_rrd == NULL)
ra->next_rrd = kmem_zalloc(sizeof (*ra->next_rrd), KM_SLEEP);
ra->next_rrd->eos_marker = B_TRUE;
bqueue_enqueue(&rwa->q, ra->next_rrd, 1);
ASSERT3P(ra->rrd, ==, NULL);
ra->rrd = kmem_zalloc(sizeof (*ra->rrd), KM_SLEEP);
ra->rrd->eos_marker = B_TRUE;
bqueue_enqueue(&rwa->q, ra->rrd, 1);
mutex_enter(&rwa->mutex);
while (!rwa->done) {
@ -2635,6 +2640,14 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp,
err = rwa->err;
out:
/*
* If we hit an error before we started the receive_writer_thread
* we need to clean up the next_rrd we create by processing the
* DRR_BEGIN record.
*/
if (ra->next_rrd != NULL)
kmem_free(ra->next_rrd, sizeof (*ra->next_rrd));
nvlist_free(begin_nvl);
if ((featureflags & DMU_BACKUP_FEATURE_DEDUP) && (cleanup_fd != -1))
zfs_onexit_fd_rele(cleanup_fd);
@ -2838,6 +2851,25 @@ dmu_recv_end_sync(void *arg, dmu_tx_t *tx)
drc->drc_newsnapobj =
dsl_dataset_phys(drc->drc_ds)->ds_prev_snap_obj;
}
/*
* If this is a raw receive, the crypt_keydata nvlist will include
* a to_ivset_guid for us to set on the new snapshot. This value
* will override the value generated by the snapshot code. However,
* this value may not be present, because older implementations of
* the raw send code did not include this value, and we are still
* allowed to receive them if the zfs_disable_ivset_guid_check
* tunable is set, in which case we will leave the newly-generated
* value.
*/
if (drc->drc_raw && drc->drc_ivset_guid != 0) {
dmu_object_zapify(dp->dp_meta_objset, drc->drc_newsnapobj,
DMU_OT_DSL_DATASET, tx);
VERIFY0(zap_update(dp->dp_meta_objset, drc->drc_newsnapobj,
DS_FIELD_IVSET_GUID, sizeof (uint64_t), 1,
&drc->drc_ivset_guid, tx));
}
zvol_create_minors(dp->dp_spa, drc->drc_tofs, B_TRUE);
/*

32
module/zfs/dmu_send.c
View File

@ -1119,9 +1119,13 @@ dmu_send_impl(void *tag, dsl_pool_t *dp, dsl_dataset_t *to_ds,
}
if (featureflags & DMU_BACKUP_FEATURE_RAW) {
uint64_t ivset_guid = (ancestor_zb != NULL) ?
ancestor_zb->zbm_ivset_guid : 0;
ASSERT(os->os_encrypted);
err = dsl_crypto_populate_key_nvlist(to_ds, &keynvl);
err = dsl_crypto_populate_key_nvlist(to_ds,
ivset_guid, &keynvl);
if (err != 0) {
fnvlist_free(nvl);
goto out;
@ -1235,7 +1239,7 @@ dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
}
if (fromsnap != 0) {
zfs_bookmark_phys_t zb;
zfs_bookmark_phys_t zb = { 0 };
boolean_t is_clone;
err = dsl_dataset_hold_obj(dp, fromsnap, FTAG, &fromds);
@ -1244,12 +1248,25 @@ dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
dsl_pool_rele(dp, FTAG);
return (err);
}
if (!dsl_dataset_is_before(ds, fromds, 0))
if (!dsl_dataset_is_before(ds, fromds, 0)) {
err = SET_ERROR(EXDEV);
dsl_dataset_rele(fromds, FTAG);
dsl_dataset_rele_flags(ds, dsflags, FTAG);
dsl_pool_rele(dp, FTAG);
return (err);
}
zb.zbm_creation_time =
dsl_dataset_phys(fromds)->ds_creation_time;
zb.zbm_creation_txg = dsl_dataset_phys(fromds)->ds_creation_txg;
zb.zbm_guid = dsl_dataset_phys(fromds)->ds_guid;
if (dsl_dataset_is_zapified(fromds)) {
(void) zap_lookup(dp->dp_meta_objset,
fromds->ds_object, DS_FIELD_IVSET_GUID, 8, 1,
&zb.zbm_ivset_guid);
}
is_clone = (fromds->ds_dir != ds->ds_dir);
dsl_dataset_rele(fromds, FTAG);
err = dmu_send_impl(FTAG, dp, ds, &zb, is_clone,
@ -1298,7 +1315,7 @@ dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
}
if (fromsnap != NULL) {
zfs_bookmark_phys_t zb;
zfs_bookmark_phys_t zb = { 0 };
boolean_t is_clone = B_FALSE;
int fsnamelen = strchr(tosnap, '@') - tosnap;
@ -1324,6 +1341,13 @@ dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
dsl_dataset_phys(fromds)->ds_creation_txg;
zb.zbm_guid = dsl_dataset_phys(fromds)->ds_guid;
is_clone = (ds->ds_dir != fromds->ds_dir);
if (dsl_dataset_is_zapified(fromds)) {
(void) zap_lookup(dp->dp_meta_objset,
fromds->ds_object,
DS_FIELD_IVSET_GUID, 8, 1,
&zb.zbm_ivset_guid);
}
dsl_dataset_rele(fromds, FTAG);
}
} else {

40
module/zfs/dsl_bookmark.c
View File

@ -221,6 +221,26 @@ dsl_bookmark_create_sync(void *arg, dmu_tx_t *tx)
bmark_phys.zbm_creation_time =
dsl_dataset_phys(snapds)->ds_creation_time;
/*
* If the dataset is encrypted create a larger bookmark to
* accommodate the IVset guid. The IVset guid was added
* after the encryption feature to prevent a problem with
* raw sends. If we encounter an encrypted dataset without
* an IVset guid we fall back to a normal bookmark.
*/
if (snapds->ds_dir->dd_crypto_obj != 0 &&
spa_feature_is_enabled(dp->dp_spa,
SPA_FEATURE_BOOKMARK_V2)) {
int err = zap_lookup(mos, snapds->ds_object,
DS_FIELD_IVSET_GUID, sizeof (uint64_t), 1,
&bmark_phys.zbm_ivset_guid);
if (err == 0) {
bmark_len = BOOKMARK_PHYS_SIZE_V2;
spa_feature_incr(dp->dp_spa,
SPA_FEATURE_BOOKMARK_V2, tx);
}
}
VERIFY0(zap_add(mos, bmark_fs->ds_bookmarks,
shortname, sizeof (uint64_t),
bmark_len / sizeof (uint64_t), &bmark_phys, tx));
@ -273,7 +293,7 @@ dsl_get_bookmarks_impl(dsl_dataset_t *ds, nvlist_t *props, nvlist_t *outnvl)
zap_cursor_retrieve(&zc, &attr) == 0;
zap_cursor_advance(&zc)) {
char *bmark_name = attr.za_name;
zfs_bookmark_phys_t bmark_phys;
zfs_bookmark_phys_t bmark_phys = { 0 };
err = dsl_dataset_bmark_lookup(ds, bmark_name, &bmark_phys);
ASSERT3U(err, !=, ENOENT);
@ -296,6 +316,11 @@ dsl_get_bookmarks_impl(dsl_dataset_t *ds, nvlist_t *props, nvlist_t *outnvl)
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_CREATION, bmark_phys.zbm_creation_time);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_IVSET_GUID))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_IVSET_GUID, bmark_phys.zbm_ivset_guid);
}
fnvlist_add_nvlist(outnvl, bmark_name, out_props);
fnvlist_free(out_props);
@ -343,13 +368,26 @@ typedef struct dsl_bookmark_destroy_arg {
static int
dsl_dataset_bookmark_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx)
{
int err;
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
uint64_t bmark_zapobj = ds->ds_bookmarks;
matchtype_t mt = 0;
uint64_t int_size, num_ints;
if (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_CI_DATASET)
mt = MT_NORMALIZE;
err = zap_length(mos, bmark_zapobj, name, &int_size, &num_ints);
if (err != 0)
return (err);
ASSERT3U(int_size, ==, sizeof (uint64_t));
if (num_ints * int_size > BOOKMARK_PHYS_SIZE_V1) {
spa_feature_decr(dmu_objset_spa(mos),
SPA_FEATURE_BOOKMARK_V2, tx);
}
return (zap_remove_norm(mos, bmark_zapobj, name, mt, tx));
}

112
module/zfs/dsl_crypt.c
View File

@ -72,6 +72,13 @@
* object is also refcounted.
*/
/*
* This tunable allows datasets to be raw received even if the stream does
* not include IVset guids or if the guids don't match. This is used as part
* of the resolution for ZPOOL_ERRATA_ZOL_8308_ENCRYPTION.
*/
int zfs_disable_ivset_guid_check = 0;
static void
dsl_wrapping_key_hold(dsl_wrapping_key_t *wkey, void *tag)
{
@ -1963,21 +1970,23 @@ dsl_dataset_create_crypt_sync(uint64_t dsobj, dsl_dir_t *dd,
typedef struct dsl_crypto_recv_key_arg {
uint64_t dcrka_dsobj;
uint64_t dcrka_fromobj;
dmu_objset_type_t dcrka_ostype;
nvlist_t *dcrka_nvl;
boolean_t dcrka_do_key;
} dsl_crypto_recv_key_arg_t;
static int
dsl_crypto_recv_raw_objset_check(dsl_dataset_t *ds, dmu_objset_type_t ostype,
nvlist_t *nvl, dmu_tx_t *tx)
dsl_crypto_recv_raw_objset_check(dsl_dataset_t *ds, dsl_dataset_t *fromds,
dmu_objset_type_t ostype, nvlist_t *nvl, dmu_tx_t *tx)
{
int ret;
objset_t *os;
dnode_t *mdn;
uint8_t *buf = NULL;
uint_t len;
uint64_t intval, nlevels, blksz, ibs, nblkptr, maxblkid;
uint64_t intval, nlevels, blksz, ibs;
uint64_t nblkptr, maxblkid;
if (ostype != DMU_OST_ZFS && ostype != DMU_OST_ZVOL)
return (SET_ERROR(EINVAL));
@ -2044,6 +2053,30 @@ dsl_crypto_recv_raw_objset_check(dsl_dataset_t *ds, dmu_objset_type_t ostype,
}
rrw_exit(&ds->ds_bp_rwlock, FTAG);
/*
* Check that the ivset guid of the fromds matches the one from the
* send stream. Older versions of the encryption code did not have
* an ivset guid on the from dataset and did not send one in the
* stream. For these streams we provide the
* zfs_disable_ivset_guid_check tunable to allow these datasets to
* be received with a generated ivset guid.
*/
if (fromds != NULL && !zfs_disable_ivset_guid_check) {
uint64_t from_ivset_guid = 0;
intval = 0;
(void) nvlist_lookup_uint64(nvl, "from_ivset_guid", &intval);
(void) zap_lookup(tx->tx_pool->dp_meta_objset,
fromds->ds_object, DS_FIELD_IVSET_GUID,
sizeof (from_ivset_guid), 1, &from_ivset_guid);
if (intval == 0 || from_ivset_guid == 0)
return (SET_ERROR(ZFS_ERR_FROM_IVSET_GUID_MISSING));
if (intval != from_ivset_guid)
return (SET_ERROR(ZFS_ERR_FROM_IVSET_GUID_MISMATCH));
}
return (0);
}
@ -2063,7 +2096,11 @@ dsl_crypto_recv_raw_objset_sync(dsl_dataset_t *ds, dmu_objset_type_t ostype,
VERIFY0(dmu_objset_from_ds(ds, &os));
mdn = DMU_META_DNODE(os);
/* fetch the values we need from the nvlist */
/*
* Fetch the values we need from the nvlist. "to_ivset_guid" must
* be set on the snapshot, which doesn't exist yet. The receive
* code will take care of this for us later.
*/
compress = fnvlist_lookup_uint64(nvl, "mdn_compress");
checksum = fnvlist_lookup_uint64(nvl, "mdn_checksum");
nlevels = fnvlist_lookup_uint64(nvl, "mdn_nlevels");
@ -2127,7 +2164,7 @@ dsl_crypto_recv_raw_key_check(dsl_dataset_t *ds, nvlist_t *nvl, dmu_tx_t *tx)
objset_t *mos = tx->tx_pool->dp_meta_objset;
uint8_t *buf = NULL;
uint_t len;
uint64_t intval, guid, version;
uint64_t intval, key_guid, version;
boolean_t is_passphrase = B_FALSE;
ASSERT(dsl_dataset_phys(ds)->ds_flags & DS_FLAG_INCONSISTENT);
@ -2152,10 +2189,10 @@ dsl_crypto_recv_raw_key_check(dsl_dataset_t *ds, nvlist_t *nvl, dmu_tx_t *tx)
*/
if (ds->ds_dir->dd_crypto_obj != 0) {
ret = zap_lookup(mos, ds->ds_dir->dd_crypto_obj,
DSL_CRYPTO_KEY_GUID, 8, 1, &guid);
DSL_CRYPTO_KEY_GUID, 8, 1, &key_guid);
if (ret != 0)
return (ret);
if (intval != guid)
if (intval != key_guid)
return (SET_ERROR(EACCES));
}
@ -2221,13 +2258,13 @@ dsl_crypto_recv_raw_key_sync(dsl_dataset_t *ds, nvlist_t *nvl, dmu_tx_t *tx)
uint_t len;
uint64_t rddobj, one = 1;
uint8_t *keydata, *hmac_keydata, *iv, *mac;
uint64_t crypt, guid, keyformat, iters, salt;
uint64_t crypt, key_guid, keyformat, iters, salt;
uint64_t version = ZIO_CRYPT_KEY_CURRENT_VERSION;
char *keylocation = "prompt";
/* lookup the values we need to create the DSL Crypto Key */
crypt = fnvlist_lookup_uint64(nvl, DSL_CRYPTO_KEY_CRYPTO_SUITE);
guid = fnvlist_lookup_uint64(nvl, DSL_CRYPTO_KEY_GUID);
key_guid = fnvlist_lookup_uint64(nvl, DSL_CRYPTO_KEY_GUID);
keyformat = fnvlist_lookup_uint64(nvl,
zfs_prop_to_name(ZFS_PROP_KEYFORMAT));
iters = fnvlist_lookup_uint64(nvl,
@ -2282,7 +2319,7 @@ dsl_crypto_recv_raw_key_sync(dsl_dataset_t *ds, nvlist_t *nvl, dmu_tx_t *tx)
/* sync the key data to the ZAP object on disk */
dsl_crypto_key_sync_impl(mos, dd->dd_crypto_obj, crypt,
rddobj, guid, iv, mac, keydata, hmac_keydata, keyformat, salt,
rddobj, key_guid, iv, mac, keydata, hmac_keydata, keyformat, salt,
iters, tx);
}
@ -2291,17 +2328,24 @@ dsl_crypto_recv_key_check(void *arg, dmu_tx_t *tx)
{
int ret;
dsl_crypto_recv_key_arg_t *dcrka = arg;
dsl_dataset_t *ds = NULL;
dsl_dataset_t *ds = NULL, *fromds = NULL;
ret = dsl_dataset_hold_obj(tx->tx_pool, dcrka->dcrka_dsobj,
FTAG, &ds);
if (ret != 0)
goto error;
goto out;
ret = dsl_crypto_recv_raw_objset_check(ds,
if (dcrka->dcrka_fromobj != 0) {
ret = dsl_dataset_hold_obj(tx->tx_pool, dcrka->dcrka_fromobj,
FTAG, &fromds);
if (ret != 0)
goto out;
}
ret = dsl_crypto_recv_raw_objset_check(ds, fromds,
dcrka->dcrka_ostype, dcrka->dcrka_nvl, tx);
if (ret != 0)
goto error;
goto out;
/*
* We run this check even if we won't be doing this part of
@ -2310,14 +2354,13 @@ dsl_crypto_recv_key_check(void *arg, dmu_tx_t *tx)
*/
ret = dsl_crypto_recv_raw_key_check(ds, dcrka->dcrka_nvl, tx);
if (ret != 0)
goto error;
goto out;
dsl_dataset_rele(ds, FTAG);
return (0);
error:
out:
if (ds != NULL)
dsl_dataset_rele(ds, FTAG);
if (fromds != NULL)
dsl_dataset_rele(fromds, FTAG);
return (ret);
}
@ -2342,12 +2385,13 @@ dsl_crypto_recv_key_sync(void *arg, dmu_tx_t *tx)
* without wrapping it.
*/
int
dsl_crypto_recv_raw(const char *poolname, uint64_t dsobj,
dsl_crypto_recv_raw(const char *poolname, uint64_t dsobj, uint64_t fromobj,
dmu_objset_type_t ostype, nvlist_t *nvl, boolean_t do_key)
{
dsl_crypto_recv_key_arg_t dcrka;
dcrka.dcrka_dsobj = dsobj;
dcrka.dcrka_fromobj = fromobj;
dcrka.dcrka_ostype = ostype;
dcrka.dcrka_nvl = nvl;
dcrka.dcrka_do_key = do_key;
@ -2357,7 +2401,8 @@ dsl_crypto_recv_raw(const char *poolname, uint64_t dsobj,
}
int
dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, nvlist_t **nvl_out)
dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, uint64_t from_ivset_guid,
nvlist_t **nvl_out)
{
int ret;
objset_t *os;
@ -2368,8 +2413,9 @@ dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, nvlist_t **nvl_out)
dsl_dir_t *rdd = NULL;
dsl_pool_t *dp = ds->ds_dir->dd_pool;
objset_t *mos = dp->dp_meta_objset;
uint64_t crypt = 0, guid = 0, format = 0;
uint64_t crypt = 0, key_guid = 0, format = 0;
uint64_t iters = 0, salt = 0, version = 0;
uint64_t to_ivset_guid = 0;
uint8_t raw_keydata[MASTER_KEY_MAX_LEN];
uint8_t raw_hmac_keydata[SHA512_HMAC_KEYLEN];
uint8_t iv[WRAPPING_IV_LEN];
@ -2390,7 +2436,7 @@ dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, nvlist_t **nvl_out)
if (ret != 0)
goto error;
ret = zap_lookup(mos, dckobj, DSL_CRYPTO_KEY_GUID, 8, 1, &guid);
ret = zap_lookup(mos, dckobj, DSL_CRYPTO_KEY_GUID, 8, 1, &key_guid);
if (ret != 0)
goto error;
@ -2414,6 +2460,12 @@ dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, nvlist_t **nvl_out)
if (ret != 0)
goto error;
/* see zfs_disable_ivset_guid_check tunable for errata info */
ret = zap_lookup(mos, ds->ds_object, DS_FIELD_IVSET_GUID, 8, 1,
&to_ivset_guid);
if (ret != 0)
ASSERT3U(dp->dp_spa->spa_errata, !=, 0);
/*
* We don't support raw sends of legacy on-disk formats. See the
* comment in dsl_crypto_recv_key_check() for details.
@ -2463,7 +2515,7 @@ dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, nvlist_t **nvl_out)
dsl_pool_config_exit(dp, FTAG);
fnvlist_add_uint64(nvl, DSL_CRYPTO_KEY_CRYPTO_SUITE, crypt);
fnvlist_add_uint64(nvl, DSL_CRYPTO_KEY_GUID, guid);
fnvlist_add_uint64(nvl, DSL_CRYPTO_KEY_GUID, key_guid);
fnvlist_add_uint64(nvl, DSL_CRYPTO_KEY_VERSION, version);
VERIFY0(nvlist_add_uint8_array(nvl, DSL_CRYPTO_KEY_MASTER_KEY,
raw_keydata, MASTER_KEY_MAX_LEN));
@ -2485,6 +2537,8 @@ dsl_crypto_populate_key_nvlist(dsl_dataset_t *ds, nvlist_t **nvl_out)
fnvlist_add_uint64(nvl, "mdn_indblkshift", mdn->dn_indblkshift);
fnvlist_add_uint64(nvl, "mdn_nblkptr", mdn->dn_nblkptr);
fnvlist_add_uint64(nvl, "mdn_maxblkid", mdn->dn_maxblkid);
fnvlist_add_uint64(nvl, "to_ivset_guid", to_ivset_guid);
fnvlist_add_uint64(nvl, "from_ivset_guid", from_ivset_guid);
*nvl_out = nvl;
return (0);
@ -2595,6 +2649,10 @@ dsl_dataset_crypt_stats(dsl_dataset_t *ds, nvlist_t *nv)
zfs_prop_to_name(ZFS_PROP_PBKDF2_ITERS), 8, 1, &intval) == 0) {
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_PBKDF2_ITERS, intval);
}
if (zap_lookup(dd->dd_pool->dp_meta_objset, ds->ds_object,
DS_FIELD_IVSET_GUID, 8, 1, &intval) == 0) {
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_IVSET_GUID, intval);
}
if (dsl_dir_get_encryption_root_ddobj(dd, &intval) == 0) {
VERIFY0(dsl_dir_hold_obj(dd->dd_pool, intval, NULL, FTAG,
@ -2829,3 +2887,9 @@ error:
return (ret);
}
#if defined(_KERNEL)
module_param(zfs_disable_ivset_guid_check, int, 0644);
MODULE_PARM_DESC(zfs_disable_ivset_guid_check,
"Set to allow raw receives without IVset guids");
#endif

31
module/zfs/dsl_dataset.c
View File

@ -621,6 +621,13 @@ dsl_dataset_hold_obj(dsl_pool_t *dp, uint64_t dsobj, void *tag,
ds->ds_reserved = ds->ds_quota = 0;
}
if (err == 0 && ds->ds_dir->dd_crypto_obj != 0 &&
ds->ds_is_snapshot &&
zap_contains(mos, dsobj, DS_FIELD_IVSET_GUID) != 0) {
dp->dp_spa->spa_errata =
ZPOOL_ERRATA_ZOL_8308_ENCRYPTION;
}
dsl_deadlist_open(&ds->ds_deadlist,
mos, dsl_dataset_phys(ds)->ds_deadlist_obj);
uint64_t remap_deadlist_obj =
@ -1702,6 +1709,30 @@ dsl_dataset_snapshot_sync_impl(dsl_dataset_t *ds, const char *snapname,
sizeof (remap_deadlist_obj), 1, &remap_deadlist_obj, tx));
}
/*
* Create a ivset guid for this snapshot if the dataset is
* encrypted. This may be overridden by a raw receive. A
* previous implementation of this code did not have this
* field as part of the on-disk format for ZFS encryption
* (see errata #4). As part of the remediation for this
* issue, we ask the user to enable the bookmark_v2 feature
* which is now a dependency of the encryption feature. We
* use this as a heuristic to determine when the user has
* elected to correct any datasets created with the old code.
* As a result, we only do this step if the bookmark_v2
* feature is enabled, which limits the number of states a
* given pool / dataset can be in with regards to terms of
* correcting the issue.
*/
if (ds->ds_dir->dd_crypto_obj != 0 &&
spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_BOOKMARK_V2)) {
uint64_t ivset_guid = unique_create();
dmu_object_zapify(mos, dsobj, DMU_OT_DSL_DATASET, tx);
VERIFY0(zap_add(mos, dsobj, DS_FIELD_IVSET_GUID,
sizeof (ivset_guid), 1, &ivset_guid, tx));
}
ASSERT3U(dsl_dataset_phys(ds)->ds_prev_snap_txg, <, tx->tx_txg);
dsl_dataset_phys(ds)->ds_prev_snap_obj = dsobj;
dsl_dataset_phys(ds)->ds_prev_snap_txg = crtxg;

10
module/zfs/spa.c
View File

@ -3360,6 +3360,16 @@ spa_ld_check_features(spa_t *spa, boolean_t *missing_feat_writep)
return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO));
}
/*
* Encryption was added before bookmark_v2, even though bookmark_v2
* is now a dependency. If this pool has encryption enabled without
* bookmark_v2, trigger an errata message.
*/
if (spa_feature_is_enabled(spa, SPA_FEATURE_ENCRYPTION) &&
!spa_feature_is_enabled(spa, SPA_FEATURE_BOOKMARK_V2)) {
spa->spa_errata = ZPOOL_ERRATA_ZOL_8308_ENCRYPTION;
}
return (0);
}

9
module/zfs/zcp_get.c
View File

@ -411,6 +411,15 @@ get_special_prop(lua_State *state, dsl_dataset_t *ds, const char *dsname,
case ZFS_PROP_INCONSISTENT:
numval = dsl_get_inconsistent(ds);
break;
case ZFS_PROP_IVSET_GUID:
if (dsl_dataset_is_zapified(ds)) {
error = zap_lookup(ds->ds_dir->dd_pool->dp_meta_objset,
ds->ds_object, DS_FIELD_IVSET_GUID,
sizeof (numval), 1, &numval);
} else {
error = ENOENT;
}
break;
case ZFS_PROP_RECEIVE_RESUME_TOKEN: {
char *token = get_receive_resume_stats_impl(ds);

5
tests/runfiles/linux.run
View File

@ -378,7 +378,7 @@ tests = ['zpool_import_001_pos', 'zpool_import_002_pos',
'zpool_import_missing_002_pos', 'zpool_import_missing_003_pos',
'zpool_import_rename_001_pos', 'zpool_import_all_001_pos',
'zpool_import_encrypted', 'zpool_import_encrypted_load',
'zpool_import_errata3',
'zpool_import_errata3', 'zpool_import_errata4',
'import_cachefile_device_added',
'import_cachefile_device_removed',
'import_cachefile_device_replaced',
@ -793,7 +793,8 @@ tests = ['rsend_001_pos', 'rsend_002_pos', 'rsend_003_pos', 'rsend_004_pos',
'send-c_embedded_blocks', 'send-c_resume', 'send-cpL_varied_recsize',
'send-c_recv_dedup', 'send_encrypted_files', 'send_encrypted_heirarchy',
'send_encrypted_props', 'send_freeobjects', 'send_realloc_dnode_size',
'send_holds', 'send_hole_birth', 'send-wDR_encrypted_zvol']
'send_holds', 'send_hole_birth', 'send_mixed_raw',
'send-wDR_encrypted_zvol']
tags = ['functional', 'rsend']
[tests/functional/scrub_mirror]

1
tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
View File

@ -88,5 +88,6 @@ if is_linux; then
"feature@project_quota"
"feature@allocation_classes"
"feature@resilver_defer"
"feature@bookmark_v2"
)
fi

3
tests/zfs-tests/tests/functional/cli_root/zpool_import/Makefile.am
View File

@ -39,7 +39,8 @@ dist_pkgdata_SCRIPTS = \
zpool_import_rename_001_pos.ksh \
zpool_import_encrypted.ksh \
zpool_import_encrypted_load.ksh \
zpool_import_errata3.ksh
zpool_import_errata3.ksh \
zpool_import_errata4.ksh
dist_pkgdata_DATA = \
zpool_import.cfg \

3
tests/zfs-tests/tests/functional/cli_root/zpool_import/blockfiles/Makefile.am
View File

@ -1,4 +1,5 @@
pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/cli_root/zpool_import/blockfiles
dist_pkgdata_DATA = \
unclean_export.dat.bz2 \
cryptv0.dat.bz2
cryptv0.dat.bz2 \
missing_ivset.dat.bz2

BIN
tests/zfs-tests/tests/functional/cli_root/zpool_import/blockfiles/missing_ivset.dat.bz2 Normal file
View File

Binary file not shown.

5
tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_errata3.ksh
View File

@ -62,7 +62,7 @@ log_assert "Verify that Errata 3 is properly handled"
uncompress_pool
log_must zpool import -d /$TESTPOOL/ $POOL_NAME
log_must eval "zpool status $POOL_NAME | grep -q Errata"
log_must eval "zpool status $POOL_NAME | grep -q Errata" # also detects 'Errata #4'
log_must eval "zpool status $POOL_NAME | grep -q ZFS-8000-ER"
log_must eval "echo 'password' | zfs load-key $POOL_NAME/testfs"
log_must eval "echo 'password' | zfs load-key $POOL_NAME/testvol"
@ -96,6 +96,5 @@ log_must zfs destroy -r $POOL_NAME/testvol
log_must zpool export $POOL_NAME
log_must zpool import -d /$TESTPOOL/ $POOL_NAME
log_mustnot eval "zpool status $POOL_NAME | grep -q Errata"
log_mustnot eval "zpool status $POOL_NAME | grep -q ZFS-8000-ER"
log_mustnot eval "zpool status $POOL_NAME | grep -q 'Errata #3'"
log_pass "Errata 3 is properly handled"

143
tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_errata4.ksh Executable file
View File

@ -0,0 +1,143 @@
#!/bin/ksh -p
#
# 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) 2019 Datto, Inc. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
#
# DESCRIPTION:
# 'zpool import' should import a pool with Errata #4. Users should be
# able to set the zfs_disable_ivset_guid_check to continue normal
# operation and the errata should disappear when no more effected
# datasets remain.
#
# STRATEGY:
# 1. Import a pre-packaged pool with Errata #4 and verify its state
# 2. Prepare pool to fix existing datasets
# 3. Use raw sends to fix datasets
# 4. Ensure fixed datasets match their initial counterparts
# 5. Destroy the initial datasets and verify the errata is gone
#
verify_runnable "global"
POOL_NAME=missing_ivset
POOL_FILE=missing_ivset.dat
function uncompress_pool
{
log_note "Creating pool from $POOL_FILE"
log_must bzcat \
$STF_SUITE/tests/functional/cli_root/zpool_import/blockfiles/$POOL_FILE.bz2 \
> /$TESTPOOL/$POOL_FILE
return 0
}
function cleanup
{
log_must set_tunable32 zfs_disable_ivset_guid_check 0
poolexists $POOL_NAME && log_must zpool destroy $POOL_NAME
[[ -e /$TESTPOOL/$POOL_FILE ]] && rm /$TESTPOOL/$POOL_FILE
return 0
}
log_onexit cleanup
log_assert "Verify that Errata 4 is properly handled"
function has_ivset_guid # dataset
{
ds="$1"
ivset_guid=$(get_prop ivsetguid $ds)
if [ "$ivset_guid" == "-" ]; then
return 1
else
return 0
fi
}
# 1. Import a pre-packaged pool with Errata #4 and verify its state
uncompress_pool
log_must zpool import -d /$TESTPOOL/ $POOL_NAME
log_must eval "zpool status $POOL_NAME | grep -q 'Errata #4'"
log_must eval "zpool status $POOL_NAME | grep -q ZFS-8000-ER"
bm2_value=$(zpool get -H -o value feature@bookmark_v2 $POOL_NAME)
if [ "$bm2_value" != "disabled" ]; then
log_fail "initial pool's bookmark_v2 feature is not disabled"
fi
log_mustnot has_ivset_guid $POOL_NAME/testfs@snap1
log_mustnot has_ivset_guid $POOL_NAME/testfs@snap2
log_mustnot has_ivset_guid $POOL_NAME/testfs@snap3
log_mustnot has_ivset_guid $POOL_NAME/testvol@snap1
log_mustnot has_ivset_guid $POOL_NAME/testvol@snap2
log_mustnot has_ivset_guid $POOL_NAME/testvol@snap3
# 2. Prepare pool to fix existing datasets
log_must zpool set feature@bookmark_v2=enabled $POOL_NAME
log_must set_tunable32 zfs_disable_ivset_guid_check 1
log_must zfs create $POOL_NAME/fixed
# 3. Use raw sends to fix datasets
log_must eval "zfs send -w $POOL_NAME/testfs@snap1 | \
zfs recv $POOL_NAME/fixed/testfs"
log_must eval "zfs send -w -i @snap1 $POOL_NAME/testfs@snap2 | \
zfs recv $POOL_NAME/fixed/testfs"
log_must eval \
"zfs send -w -i $POOL_NAME/testfs#snap2 $POOL_NAME/testfs@snap3 | \
zfs recv $POOL_NAME/fixed/testfs"
log_must eval "zfs send -w $POOL_NAME/testvol@snap1 | \
zfs recv $POOL_NAME/fixed/testvol"
log_must eval "zfs send -w -i @snap1 $POOL_NAME/testvol@snap2 | \
zfs recv $POOL_NAME/fixed/testvol"
log_must eval \
"zfs send -w -i $POOL_NAME/testvol#snap2 $POOL_NAME/testvol@snap3 | \
zfs recv $POOL_NAME/fixed/testvol"
# 4. Ensure fixed datasets match their initial counterparts
log_must eval "echo 'password' | zfs load-key $POOL_NAME/testfs"
log_must eval "echo 'password' | zfs load-key $POOL_NAME/testvol"
log_must eval "echo 'password' | zfs load-key $POOL_NAME/fixed/testfs"
log_must eval "echo 'password' | zfs load-key $POOL_NAME/fixed/testvol"
log_must zfs mount $POOL_NAME/testfs
log_must zfs mount $POOL_NAME/fixed/testfs
block_device_wait
old_mntpnt=$(get_prop mountpoint $POOL_NAME/testfs)
new_mntpnt=$(get_prop mountpoint $POOL_NAME/fixed/testfs)
log_must diff -r "$old_mntpnt" "$new_mntpnt"
log_must diff /dev/zvol/$POOL_NAME/testvol /dev/zvol/$POOL_NAME/fixed/testvol
log_must has_ivset_guid $POOL_NAME/fixed/testfs@snap1
log_must has_ivset_guid $POOL_NAME/fixed/testfs@snap2
log_must has_ivset_guid $POOL_NAME/fixed/testfs@snap3
log_must has_ivset_guid $POOL_NAME/fixed/testvol@snap1
log_must has_ivset_guid $POOL_NAME/fixed/testvol@snap2
log_must has_ivset_guid $POOL_NAME/fixed/testvol@snap3
# 5. Destroy the initial datasets and verify the errata is gone
log_must zfs destroy -r $POOL_NAME/testfs
log_must zfs destroy -r $POOL_NAME/testvol
log_must zpool export $POOL_NAME
log_must zpool import -d /$TESTPOOL/ $POOL_NAME
log_mustnot eval "zpool status $POOL_NAME | grep -q 'Errata #4'"
log_mustnot eval "zpool status $POOL_NAME | grep -q ZFS-8000-ER"
log_pass "Errata 4 is properly handled"

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

@ -43,6 +43,7 @@ dist_pkgdata_SCRIPTS = \
send_realloc_dnode_size.ksh \
send_holds.ksh \
send_hole_birth.ksh \
send_mixed_raw.ksh \
send-wDR_encrypted_zvol.ksh
dist_pkgdata_DATA = \

118
tests/zfs-tests/tests/functional/rsend/send_mixed_raw.ksh Executable file
View File

@ -0,0 +1,118 @@
#!/bin/ksh -p
#
# 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) 2019 Datto, Inc. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
#
# DESCRIPTION:
# Verify that 'zfs receive' produces an error when mixing
# raw and non-raw sends in a way that would break IV set
# consistency.
#
# STRATEGY:
# 1. Create an initial dataset with 3 snapshots.
# 2. Perform a raw send of the first snapshot to 2 other datasets.
# 3. Perform a non-raw send of the second snapshot to one of
# the other datasets. Perform a raw send from this dataset to
# the last one.
# 4. Attempt to raw send the final snapshot of the first dataset
# to the other 2 datasets, which should fail.
# 5. Repeat steps 1-4, but using bookmarks for incremental sends.
#
#
# A B C notes
# ------------------------------------------------------------------------------
# snap1 ---raw---> snap1 --raw--> snap1 # all snaps initialized via raw send
# snap2 -non-raw-> snap2 --raw--> snap2 # A sends non-raw to B, B sends raw to C
# snap3 ------------raw---------> snap3 # attempt send to C (should fail)
#
verify_runnable "both"
function cleanup
{
datasetexists $TESTPOOL/$TESTFS3 && \
log_must zfs destroy -r $TESTPOOL/$TESTFS3
datasetexists $TESTPOOL/$TESTFS2 && \
log_must zfs destroy -r $TESTPOOL/$TESTFS2
datasetexists $TESTPOOL/$TESTFS1 && \
log_must zfs destroy -r $TESTPOOL/$TESTFS1
}
log_onexit cleanup
log_assert "Mixing raw and non-raw receives should fail"
typeset passphrase="password"
log_must eval "echo $passphrase | zfs create -o encryption=on" \
"-o keyformat=passphrase $TESTPOOL/$TESTFS1"
log_must zfs snapshot $TESTPOOL/$TESTFS1@1
log_must touch /$TESTPOOL/$TESTFS1/a
log_must zfs snapshot $TESTPOOL/$TESTFS1@2
log_must touch /$TESTPOOL/$TESTFS1/b
log_must zfs snapshot $TESTPOOL/$TESTFS1@3
# Testing with snapshots
log_must eval "zfs send -w $TESTPOOL/$TESTFS1@1 |" \
"zfs receive $TESTPOOL/$TESTFS2"
log_must eval "echo $passphrase | zfs load-key $TESTPOOL/$TESTFS2"
log_must eval "zfs send -w $TESTPOOL/$TESTFS2@1 |" \
"zfs receive $TESTPOOL/$TESTFS3"
log_must eval "echo $passphrase | zfs load-key $TESTPOOL/$TESTFS3"
log_must eval "zfs send -i $TESTPOOL/$TESTFS1@1 $TESTPOOL/$TESTFS1@2 |" \
"zfs receive $TESTPOOL/$TESTFS2"
log_must eval "zfs send -w -i $TESTPOOL/$TESTFS2@1 $TESTPOOL/$TESTFS2@2 |" \
"zfs receive $TESTPOOL/$TESTFS3"
log_mustnot eval "zfs send -w -i $TESTPOOL/$TESTFS1@2 $TESTPOOL/$TESTFS1@3 |" \
"zfs receive $TESTPOOL/$TESTFS2"
log_mustnot eval "zfs send -w -i $TESTPOOL/$TESTFS2@2 $TESTPOOL/$TESTFS2@3 |" \
"zfs receive $TESTPOOL/$TESTFS3"
log_must zfs destroy -r $TESTPOOL/$TESTFS3
log_must zfs destroy -r $TESTPOOL/$TESTFS2
# Testing with bookmarks
log_must zfs bookmark $TESTPOOL/$TESTFS1@1 $TESTPOOL/$TESTFS1#b1
log_must zfs bookmark $TESTPOOL/$TESTFS1@2 $TESTPOOL/$TESTFS1#b2
log_must eval "zfs send -w $TESTPOOL/$TESTFS1@1 |" \
"zfs receive $TESTPOOL/$TESTFS2"
log_must eval "echo $passphrase | zfs load-key $TESTPOOL/$TESTFS2"
log_must zfs bookmark $TESTPOOL/$TESTFS2@1 $TESTPOOL/$TESTFS2#b1
log_must eval "zfs send -w $TESTPOOL/$TESTFS2@1 |" \
"zfs receive $TESTPOOL/$TESTFS3"
log_must eval "echo $passphrase | zfs load-key $TESTPOOL/$TESTFS3"
log_must eval "zfs send -i $TESTPOOL/$TESTFS1#b1 $TESTPOOL/$TESTFS1@2 |" \
"zfs receive $TESTPOOL/$TESTFS2"
log_must eval "zfs send -w -i $TESTPOOL/$TESTFS2#b1 $TESTPOOL/$TESTFS2@2 |" \
"zfs receive $TESTPOOL/$TESTFS3"
log_mustnot eval "zfs send -w -i $TESTPOOL/$TESTFS1#b2" \
"$TESTPOOL/$TESTFS1@3 | zfs receive $TESTPOOL/$TESTFS2"
log_mustnot eval "zfs send -w -i $TESTPOOL/$TESTFS2#b2" \
"$TESTPOOL/$TESTFS2@3 | zfs receive $TESTPOOL/$TESTFS3"
log_pass "Mixing raw and non-raw receives fail as expected"