zfs/lib/libzfs/libzfs_sendrecv.c

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2008-11-20 20:01:55 +00:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2012, Joyent, Inc. All rights reserved.
* Copyright (c) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>.
* All rights reserved
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
2008-11-20 20:01:55 +00:00
*/
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <stddef.h>
#include <fcntl.h>
#include <sys/mount.h>
#include <sys/mntent.h>
#include <sys/mnttab.h>
#include <sys/avl.h>
#include <sys/debug.h>
#include <sys/stat.h>
#include <stddef.h>
#include <pthread.h>
#include <umem.h>
#include <time.h>
2008-11-20 20:01:55 +00:00
#include <libzfs.h>
#include <libzfs_core.h>
2008-11-20 20:01:55 +00:00
#include "zfs_namecheck.h"
#include "zfs_prop.h"
#include "zfs_fletcher.h"
2008-11-20 20:01:55 +00:00
#include "libzfs_impl.h"
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
#include <zlib.h>
#include <sys/zio_checksum.h>
#include <sys/ddt.h>
#include <sys/socket.h>
2008-11-20 20:01:55 +00:00
/* in libzfs_dataset.c */
extern void zfs_setprop_error(libzfs_handle_t *, zfs_prop_t, int, char *);
2008-11-20 20:01:55 +00:00
static int zfs_receive_impl(libzfs_handle_t *, const char *, const char *,
recvflags_t *, int, const char *, nvlist_t *, avl_tree_t *, char **, int,
uint64_t *, const char *);
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
static int guid_to_name(libzfs_handle_t *, const char *,
uint64_t, boolean_t, char *);
static const zio_cksum_t zero_cksum = { { 0 } };
typedef struct dedup_arg {
int inputfd;
int outputfd;
libzfs_handle_t *dedup_hdl;
} dedup_arg_t;
typedef struct progress_arg {
zfs_handle_t *pa_zhp;
int pa_fd;
boolean_t pa_parsable;
} progress_arg_t;
typedef struct dataref {
uint64_t ref_guid;
uint64_t ref_object;
uint64_t ref_offset;
} dataref_t;
typedef struct dedup_entry {
struct dedup_entry *dde_next;
zio_cksum_t dde_chksum;
uint64_t dde_prop;
dataref_t dde_ref;
} dedup_entry_t;
#define MAX_DDT_PHYSMEM_PERCENT 20
#define SMALLEST_POSSIBLE_MAX_DDT_MB 128
typedef struct dedup_table {
dedup_entry_t **dedup_hash_array;
umem_cache_t *ddecache;
uint64_t max_ddt_size; /* max dedup table size in bytes */
uint64_t cur_ddt_size; /* current dedup table size in bytes */
uint64_t ddt_count;
int numhashbits;
boolean_t ddt_full;
} dedup_table_t;
static int
high_order_bit(uint64_t n)
{
int count;
for (count = 0; n != 0; count++)
n >>= 1;
return (count);
}
static size_t
ssread(void *buf, size_t len, FILE *stream)
{
size_t outlen;
if ((outlen = fread(buf, len, 1, stream)) == 0)
return (0);
return (outlen);
}
static void
ddt_hash_append(libzfs_handle_t *hdl, dedup_table_t *ddt, dedup_entry_t **ddepp,
zio_cksum_t *cs, uint64_t prop, dataref_t *dr)
{
dedup_entry_t *dde;
if (ddt->cur_ddt_size >= ddt->max_ddt_size) {
if (ddt->ddt_full == B_FALSE) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Dedup table full. Deduplication will continue "
"with existing table entries"));
ddt->ddt_full = B_TRUE;
}
return;
}
if ((dde = umem_cache_alloc(ddt->ddecache, UMEM_DEFAULT))
!= NULL) {
assert(*ddepp == NULL);
dde->dde_next = NULL;
dde->dde_chksum = *cs;
dde->dde_prop = prop;
dde->dde_ref = *dr;
*ddepp = dde;
ddt->cur_ddt_size += sizeof (dedup_entry_t);
ddt->ddt_count++;
}
}
/*
* Using the specified dedup table, do a lookup for an entry with
* the checksum cs. If found, return the block's reference info
* in *dr. Otherwise, insert a new entry in the dedup table, using
* the reference information specified by *dr.
*
* return value: true - entry was found
* false - entry was not found
*/
static boolean_t
ddt_update(libzfs_handle_t *hdl, dedup_table_t *ddt, zio_cksum_t *cs,
uint64_t prop, dataref_t *dr)
{
uint32_t hashcode;
dedup_entry_t **ddepp;
hashcode = BF64_GET(cs->zc_word[0], 0, ddt->numhashbits);
for (ddepp = &(ddt->dedup_hash_array[hashcode]); *ddepp != NULL;
ddepp = &((*ddepp)->dde_next)) {
if (ZIO_CHECKSUM_EQUAL(((*ddepp)->dde_chksum), *cs) &&
(*ddepp)->dde_prop == prop) {
*dr = (*ddepp)->dde_ref;
return (B_TRUE);
}
}
ddt_hash_append(hdl, ddt, ddepp, cs, prop, dr);
return (B_FALSE);
}
static int
dump_record(dmu_replay_record_t *drr, void *payload, int payload_len,
zio_cksum_t *zc, int outfd)
{
ASSERT3U(offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum),
==, sizeof (dmu_replay_record_t) - sizeof (zio_cksum_t));
fletcher_4_incremental_native(drr,
offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), zc);
if (drr->drr_type != DRR_BEGIN) {
ASSERT(ZIO_CHECKSUM_IS_ZERO(&drr->drr_u.
drr_checksum.drr_checksum));
drr->drr_u.drr_checksum.drr_checksum = *zc;
}
fletcher_4_incremental_native(&drr->drr_u.drr_checksum.drr_checksum,
sizeof (zio_cksum_t), zc);
if (write(outfd, drr, sizeof (*drr)) == -1)
return (errno);
if (payload_len != 0) {
fletcher_4_incremental_native(payload, payload_len, zc);
if (write(outfd, payload, payload_len) == -1)
return (errno);
}
return (0);
}
/*
* This function is started in a separate thread when the dedup option
* has been requested. The main send thread determines the list of
* snapshots to be included in the send stream and makes the ioctl calls
* for each one. But instead of having the ioctl send the output to the
* the output fd specified by the caller of zfs_send()), the
* ioctl is told to direct the output to a pipe, which is read by the
* alternate thread running THIS function. This function does the
* dedup'ing by:
* 1. building a dedup table (the DDT)
* 2. doing checksums on each data block and inserting a record in the DDT
* 3. looking for matching checksums, and
* 4. sending a DRR_WRITE_BYREF record instead of a write record whenever
* a duplicate block is found.
* The output of this function then goes to the output fd requested
* by the caller of zfs_send().
*/
static void *
cksummer(void *arg)
{
dedup_arg_t *dda = arg;
Illumos 5027 - zfs large block support 5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #354
2014-11-03 20:15:08 +00:00
char *buf = zfs_alloc(dda->dedup_hdl, SPA_MAXBLOCKSIZE);
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
dmu_replay_record_t thedrr = { 0 };
dmu_replay_record_t *drr = &thedrr;
FILE *ofp;
int outfd;
dedup_table_t ddt;
zio_cksum_t stream_cksum;
uint64_t physmem = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGESIZE);
uint64_t numbuckets;
ddt.max_ddt_size =
MAX((physmem * MAX_DDT_PHYSMEM_PERCENT) / 100,
SMALLEST_POSSIBLE_MAX_DDT_MB << 20);
numbuckets = ddt.max_ddt_size / (sizeof (dedup_entry_t));
/*
* numbuckets must be a power of 2. Increase number to
* a power of 2 if necessary.
*/
if (!ISP2(numbuckets))
numbuckets = 1 << high_order_bit(numbuckets);
ddt.dedup_hash_array = calloc(numbuckets, sizeof (dedup_entry_t *));
ddt.ddecache = umem_cache_create("dde", sizeof (dedup_entry_t), 0,
NULL, NULL, NULL, NULL, NULL, 0);
ddt.cur_ddt_size = numbuckets * sizeof (dedup_entry_t *);
ddt.numhashbits = high_order_bit(numbuckets) - 1;
ddt.ddt_full = B_FALSE;
outfd = dda->outputfd;
ofp = fdopen(dda->inputfd, "r");
while (ssread(drr, sizeof (*drr), ofp) != 0) {
switch (drr->drr_type) {
case DRR_BEGIN:
{
struct drr_begin *drrb = &drr->drr_u.drr_begin;
int fflags;
int sz = 0;
ZIO_SET_CHECKSUM(&stream_cksum, 0, 0, 0, 0);
ASSERT3U(drrb->drr_magic, ==, DMU_BACKUP_MAGIC);
/* set the DEDUP feature flag for this stream */
fflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo);
fflags |= (DMU_BACKUP_FEATURE_DEDUP |
DMU_BACKUP_FEATURE_DEDUPPROPS);
DMU_SET_FEATUREFLAGS(drrb->drr_versioninfo, fflags);
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
if (drr->drr_payloadlen != 0) {
sz = drr->drr_payloadlen;
Illumos 5027 - zfs large block support 5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #354
2014-11-03 20:15:08 +00:00
if (sz > SPA_MAXBLOCKSIZE) {
buf = zfs_realloc(dda->dedup_hdl, buf,
SPA_MAXBLOCKSIZE, sz);
}
(void) ssread(buf, sz, ofp);
if (ferror(stdin))
perror("fread");
}
if (dump_record(drr, buf, sz, &stream_cksum,
outfd) != 0)
goto out;
break;
}
case DRR_END:
{
struct drr_end *drre = &drr->drr_u.drr_end;
/* use the recalculated checksum */
drre->drr_checksum = stream_cksum;
if (dump_record(drr, NULL, 0, &stream_cksum,
outfd) != 0)
goto out;
break;
}
case DRR_OBJECT:
{
struct drr_object *drro = &drr->drr_u.drr_object;
if (drro->drr_bonuslen > 0) {
(void) ssread(buf,
P2ROUNDUP((uint64_t)drro->drr_bonuslen, 8),
ofp);
}
if (dump_record(drr, buf,
P2ROUNDUP((uint64_t)drro->drr_bonuslen, 8),
&stream_cksum, outfd) != 0)
goto out;
break;
}
case DRR_SPILL:
{
struct drr_spill *drrs = &drr->drr_u.drr_spill;
(void) ssread(buf, drrs->drr_length, ofp);
if (dump_record(drr, buf, drrs->drr_length,
&stream_cksum, outfd) != 0)
goto out;
break;
}
case DRR_FREEOBJECTS:
{
if (dump_record(drr, NULL, 0, &stream_cksum,
outfd) != 0)
goto out;
break;
}
case DRR_WRITE:
{
struct drr_write *drrw = &drr->drr_u.drr_write;
dataref_t dataref;
(void) ssread(buf, drrw->drr_length, ofp);
/*
* Use the existing checksum if it's dedup-capable,
* else calculate a SHA256 checksum for it.
*/
if (ZIO_CHECKSUM_EQUAL(drrw->drr_key.ddk_cksum,
zero_cksum) ||
!DRR_IS_DEDUP_CAPABLE(drrw->drr_checksumflags)) {
zio_cksum_t tmpsha256;
zio_checksum_SHA256(buf,
drrw->drr_length, &tmpsha256);
drrw->drr_key.ddk_cksum.zc_word[0] =
BE_64(tmpsha256.zc_word[0]);
drrw->drr_key.ddk_cksum.zc_word[1] =
BE_64(tmpsha256.zc_word[1]);
drrw->drr_key.ddk_cksum.zc_word[2] =
BE_64(tmpsha256.zc_word[2]);
drrw->drr_key.ddk_cksum.zc_word[3] =
BE_64(tmpsha256.zc_word[3]);
drrw->drr_checksumtype = ZIO_CHECKSUM_SHA256;
drrw->drr_checksumflags = DRR_CHECKSUM_DEDUP;
}
dataref.ref_guid = drrw->drr_toguid;
dataref.ref_object = drrw->drr_object;
dataref.ref_offset = drrw->drr_offset;
if (ddt_update(dda->dedup_hdl, &ddt,
&drrw->drr_key.ddk_cksum, drrw->drr_key.ddk_prop,
&dataref)) {
dmu_replay_record_t wbr_drr = {0};
struct drr_write_byref *wbr_drrr =
&wbr_drr.drr_u.drr_write_byref;
/* block already present in stream */
wbr_drr.drr_type = DRR_WRITE_BYREF;
wbr_drrr->drr_object = drrw->drr_object;
wbr_drrr->drr_offset = drrw->drr_offset;
wbr_drrr->drr_length = drrw->drr_length;
wbr_drrr->drr_toguid = drrw->drr_toguid;
wbr_drrr->drr_refguid = dataref.ref_guid;
wbr_drrr->drr_refobject =
dataref.ref_object;
wbr_drrr->drr_refoffset =
dataref.ref_offset;
wbr_drrr->drr_checksumtype =
drrw->drr_checksumtype;
wbr_drrr->drr_checksumflags =
drrw->drr_checksumtype;
wbr_drrr->drr_key.ddk_cksum =
drrw->drr_key.ddk_cksum;
wbr_drrr->drr_key.ddk_prop =
drrw->drr_key.ddk_prop;
if (dump_record(&wbr_drr, NULL, 0,
&stream_cksum, outfd) != 0)
goto out;
} else {
/* block not previously seen */
if (dump_record(drr, buf, drrw->drr_length,
&stream_cksum, outfd) != 0)
goto out;
}
break;
}
case DRR_WRITE_EMBEDDED:
{
struct drr_write_embedded *drrwe =
&drr->drr_u.drr_write_embedded;
(void) ssread(buf,
P2ROUNDUP((uint64_t)drrwe->drr_psize, 8), ofp);
if (dump_record(drr, buf,
P2ROUNDUP((uint64_t)drrwe->drr_psize, 8),
&stream_cksum, outfd) != 0)
goto out;
break;
}
case DRR_FREE:
{
if (dump_record(drr, NULL, 0, &stream_cksum,
outfd) != 0)
goto out;
break;
}
default:
(void) fprintf(stderr, "INVALID record type 0x%x\n",
drr->drr_type);
/* should never happen, so assert */
assert(B_FALSE);
}
}
out:
umem_cache_destroy(ddt.ddecache);
free(ddt.dedup_hash_array);
free(buf);
(void) fclose(ofp);
return (NULL);
}
2008-11-20 20:01:55 +00:00
/*
* Routines for dealing with the AVL tree of fs-nvlists
*/
typedef struct fsavl_node {
avl_node_t fn_node;
nvlist_t *fn_nvfs;
char *fn_snapname;
uint64_t fn_guid;
} fsavl_node_t;
static int
fsavl_compare(const void *arg1, const void *arg2)
{
Performance optimization of AVL tree comparator functions perf: 2.75x faster ddt_entry_compare() First 256bits of ddt_key_t is a block checksum, which are expected to be close to random data. Hence, on average, comparison only needs to look at first few bytes of the keys. To reduce number of conditional jump instructions, the result is computed as: sign(memcmp(k1, k2)). Sign of an integer 'a' can be obtained as: `(0 < a) - (a < 0)` := {-1, 0, 1} , which is computed efficiently. Synthetic performance evaluation of original and new algorithm over 1G random keys on 2.6GHz Intel(R) Xeon(R) CPU E5-2660 v3: old 6.85789 s new 2.49089 s perf: 2.8x faster vdev_queue_offset_compare() and vdev_queue_timestamp_compare() Compute the result directly instead of using conditionals perf: zfs_range_compare() Speedup between 1.1x - 2.5x, depending on compiler version and optimization level. perf: spa_error_entry_compare() `bcmp()` is not suitable for comparator use. Use `memcmp()` instead. perf: 2.8x faster metaslab_compare() and metaslab_rangesize_compare() perf: 2.8x faster zil_bp_compare() perf: 2.8x faster mze_compare() perf: faster dbuf_compare() perf: faster compares in spa_misc perf: 2.8x faster layout_hash_compare() perf: 2.8x faster space_reftree_compare() perf: libzfs: faster avl tree comparators perf: guid_compare() perf: dsl_deadlist_compare() perf: perm_set_compare() perf: 2x faster range_tree_seg_compare() perf: faster unique_compare() perf: faster vdev_cache _compare() perf: faster vdev_uberblock_compare() perf: faster fuid _compare() perf: faster zfs_znode_hold_compare() Signed-off-by: Gvozden Neskovic <neskovic@gmail.com> Signed-off-by: Richard Elling <richard.elling@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #5033
2016-08-27 18:12:53 +00:00
const fsavl_node_t *fn1 = (const fsavl_node_t *)arg1;
const fsavl_node_t *fn2 = (const fsavl_node_t *)arg2;
return (AVL_CMP(fn1->fn_guid, fn2->fn_guid));
2008-11-20 20:01:55 +00:00
}
/*
* Given the GUID of a snapshot, find its containing filesystem and
* (optionally) name.
*/
static nvlist_t *
fsavl_find(avl_tree_t *avl, uint64_t snapguid, char **snapname)
{
fsavl_node_t fn_find;
fsavl_node_t *fn;
fn_find.fn_guid = snapguid;
fn = avl_find(avl, &fn_find, NULL);
if (fn) {
if (snapname)
*snapname = fn->fn_snapname;
return (fn->fn_nvfs);
}
return (NULL);
}
static void
fsavl_destroy(avl_tree_t *avl)
{
fsavl_node_t *fn;
void *cookie;
if (avl == NULL)
return;
cookie = NULL;
while ((fn = avl_destroy_nodes(avl, &cookie)) != NULL)
free(fn);
avl_destroy(avl);
free(avl);
}
2009-08-18 18:43:27 +00:00
/*
* Given an nvlist, produce an avl tree of snapshots, ordered by guid
*/
2008-11-20 20:01:55 +00:00
static avl_tree_t *
fsavl_create(nvlist_t *fss)
{
avl_tree_t *fsavl;
nvpair_t *fselem = NULL;
if ((fsavl = malloc(sizeof (avl_tree_t))) == NULL)
return (NULL);
avl_create(fsavl, fsavl_compare, sizeof (fsavl_node_t),
offsetof(fsavl_node_t, fn_node));
while ((fselem = nvlist_next_nvpair(fss, fselem)) != NULL) {
nvlist_t *nvfs, *snaps;
nvpair_t *snapelem = NULL;
VERIFY(0 == nvpair_value_nvlist(fselem, &nvfs));
VERIFY(0 == nvlist_lookup_nvlist(nvfs, "snaps", &snaps));
while ((snapelem =
nvlist_next_nvpair(snaps, snapelem)) != NULL) {
fsavl_node_t *fn;
uint64_t guid;
VERIFY(0 == nvpair_value_uint64(snapelem, &guid));
if ((fn = malloc(sizeof (fsavl_node_t))) == NULL) {
fsavl_destroy(fsavl);
return (NULL);
}
fn->fn_nvfs = nvfs;
fn->fn_snapname = nvpair_name(snapelem);
fn->fn_guid = guid;
/*
* Note: if there are multiple snaps with the
* same GUID, we ignore all but one.
*/
if (avl_find(fsavl, fn, NULL) == NULL)
avl_add(fsavl, fn);
else
free(fn);
}
}
return (fsavl);
}
/*
* Routines for dealing with the giant nvlist of fs-nvlists, etc.
*/
typedef struct send_data {
uint64_t parent_fromsnap_guid;
nvlist_t *parent_snaps;
nvlist_t *fss;
nvlist_t *snapprops;
2008-11-20 20:01:55 +00:00
const char *fromsnap;
const char *tosnap;
boolean_t recursive;
boolean_t seenfrom;
boolean_t seento;
2008-11-20 20:01:55 +00:00
/*
* The header nvlist is of the following format:
* {
* "tosnap" -> string
* "fromsnap" -> string (if incremental)
* "fss" -> {
* id -> {
*
* "name" -> string (full name; for debugging)
* "parentfromsnap" -> number (guid of fromsnap in parent)
*
* "props" -> { name -> value (only if set here) }
* "snaps" -> { name (lastname) -> number (guid) }
* "snapprops" -> { name (lastname) -> { name -> value } }
2008-11-20 20:01:55 +00:00
*
* "origin" -> number (guid) (if clone)
* "sent" -> boolean (not on-disk)
* }
* }
* }
*
*/
} send_data_t;
static void send_iterate_prop(zfs_handle_t *zhp, nvlist_t *nv);
2008-11-20 20:01:55 +00:00
static int
send_iterate_snap(zfs_handle_t *zhp, void *arg)
{
send_data_t *sd = arg;
uint64_t guid = zhp->zfs_dmustats.dds_guid;
char *snapname;
nvlist_t *nv;
boolean_t isfromsnap, istosnap, istosnapwithnofrom;
2008-11-20 20:01:55 +00:00
snapname = strrchr(zhp->zfs_name, '@')+1;
isfromsnap = (sd->fromsnap != NULL &&
strcmp(sd->fromsnap, snapname) == 0);
istosnap = (sd->tosnap != NULL && (strcmp(sd->tosnap, snapname) == 0));
istosnapwithnofrom = (istosnap && sd->fromsnap == NULL);
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VERIFY(0 == nvlist_add_uint64(sd->parent_snaps, snapname, guid));
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/*
* NB: if there is no fromsnap here (it's a newly created fs in
* an incremental replication), we will substitute the tosnap.
*/
if (isfromsnap || (sd->parent_fromsnap_guid == 0 && istosnap)) {
2008-11-20 20:01:55 +00:00
sd->parent_fromsnap_guid = guid;
}
if (!sd->recursive) {
if (!sd->seenfrom && isfromsnap) {
sd->seenfrom = B_TRUE;
zfs_close(zhp);
return (0);
}
if ((sd->seento || !sd->seenfrom) && !istosnapwithnofrom) {
zfs_close(zhp);
return (0);
}
if (istosnap)
sd->seento = B_TRUE;
}
VERIFY(0 == nvlist_alloc(&nv, NV_UNIQUE_NAME, 0));
send_iterate_prop(zhp, nv);
VERIFY(0 == nvlist_add_nvlist(sd->snapprops, snapname, nv));
nvlist_free(nv);
2008-11-20 20:01:55 +00:00
zfs_close(zhp);
return (0);
}
static void
send_iterate_prop(zfs_handle_t *zhp, nvlist_t *nv)
{
nvpair_t *elem = NULL;
while ((elem = nvlist_next_nvpair(zhp->zfs_props, elem)) != NULL) {
char *propname = nvpair_name(elem);
zfs_prop_t prop = zfs_name_to_prop(propname);
nvlist_t *propnv;
if (!zfs_prop_user(propname)) {
/*
* Realistically, this should never happen. However,
* we want the ability to add DSL properties without
* needing to make incompatible version changes. We
* need to ignore unknown properties to allow older
* software to still send datasets containing these
* properties, with the unknown properties elided.
*/
if (prop == ZPROP_INVAL)
continue;
2009-07-02 22:44:48 +00:00
if (zfs_prop_readonly(prop))
continue;
}
2008-11-20 20:01:55 +00:00
verify(nvpair_value_nvlist(elem, &propnv) == 0);
2009-08-18 18:43:27 +00:00
if (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_RESERVATION ||
prop == ZFS_PROP_REFQUOTA ||
prop == ZFS_PROP_REFRESERVATION) {
char *source;
2008-11-20 20:01:55 +00:00
uint64_t value;
verify(nvlist_lookup_uint64(propnv,
ZPROP_VALUE, &value) == 0);
if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT)
continue;
/*
* May have no source before SPA_VERSION_RECVD_PROPS,
* but is still modifiable.
*/
if (nvlist_lookup_string(propnv,
ZPROP_SOURCE, &source) == 0) {
if ((strcmp(source, zhp->zfs_name) != 0) &&
(strcmp(source,
ZPROP_SOURCE_VAL_RECVD) != 0))
continue;
}
2008-11-20 20:01:55 +00:00
} else {
char *source;
if (nvlist_lookup_string(propnv,
ZPROP_SOURCE, &source) != 0)
continue;
if ((strcmp(source, zhp->zfs_name) != 0) &&
(strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0))
2008-11-20 20:01:55 +00:00
continue;
}
if (zfs_prop_user(propname) ||
zfs_prop_get_type(prop) == PROP_TYPE_STRING) {
char *value;
verify(nvlist_lookup_string(propnv,
ZPROP_VALUE, &value) == 0);
VERIFY(0 == nvlist_add_string(nv, propname, value));
} else {
uint64_t value;
verify(nvlist_lookup_uint64(propnv,
ZPROP_VALUE, &value) == 0);
VERIFY(0 == nvlist_add_uint64(nv, propname, value));
}
}
}
2009-08-18 18:43:27 +00:00
/*
* recursively generate nvlists describing datasets. See comment
* for the data structure send_data_t above for description of contents
* of the nvlist.
*/
2008-11-20 20:01:55 +00:00
static int
send_iterate_fs(zfs_handle_t *zhp, void *arg)
{
send_data_t *sd = arg;
nvlist_t *nvfs, *nv;
int rv = 0;
2008-11-20 20:01:55 +00:00
uint64_t parent_fromsnap_guid_save = sd->parent_fromsnap_guid;
uint64_t guid = zhp->zfs_dmustats.dds_guid;
char guidstring[64];
VERIFY(0 == nvlist_alloc(&nvfs, NV_UNIQUE_NAME, 0));
VERIFY(0 == nvlist_add_string(nvfs, "name", zhp->zfs_name));
VERIFY(0 == nvlist_add_uint64(nvfs, "parentfromsnap",
sd->parent_fromsnap_guid));
if (zhp->zfs_dmustats.dds_origin[0]) {
zfs_handle_t *origin = zfs_open(zhp->zfs_hdl,
zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT);
if (origin == NULL)
return (-1);
VERIFY(0 == nvlist_add_uint64(nvfs, "origin",
origin->zfs_dmustats.dds_guid));
}
/* iterate over props */
VERIFY(0 == nvlist_alloc(&nv, NV_UNIQUE_NAME, 0));
send_iterate_prop(zhp, nv);
VERIFY(0 == nvlist_add_nvlist(nvfs, "props", nv));
nvlist_free(nv);
/* iterate over snaps, and set sd->parent_fromsnap_guid */
sd->parent_fromsnap_guid = 0;
VERIFY(0 == nvlist_alloc(&sd->parent_snaps, NV_UNIQUE_NAME, 0));
VERIFY(0 == nvlist_alloc(&sd->snapprops, NV_UNIQUE_NAME, 0));
(void) zfs_iter_snapshots_sorted(zhp, send_iterate_snap, sd);
2008-11-20 20:01:55 +00:00
VERIFY(0 == nvlist_add_nvlist(nvfs, "snaps", sd->parent_snaps));
VERIFY(0 == nvlist_add_nvlist(nvfs, "snapprops", sd->snapprops));
2008-11-20 20:01:55 +00:00
nvlist_free(sd->parent_snaps);
nvlist_free(sd->snapprops);
2008-11-20 20:01:55 +00:00
/* add this fs to nvlist */
(void) snprintf(guidstring, sizeof (guidstring),
"0x%llx", (longlong_t)guid);
VERIFY(0 == nvlist_add_nvlist(sd->fss, guidstring, nvfs));
nvlist_free(nvfs);
/* iterate over children */
if (sd->recursive)
rv = zfs_iter_filesystems(zhp, send_iterate_fs, sd);
2008-11-20 20:01:55 +00:00
sd->parent_fromsnap_guid = parent_fromsnap_guid_save;
zfs_close(zhp);
return (rv);
}
static int
gather_nvlist(libzfs_handle_t *hdl, const char *fsname, const char *fromsnap,
const char *tosnap, boolean_t recursive, nvlist_t **nvlp, avl_tree_t **avlp)
2008-11-20 20:01:55 +00:00
{
zfs_handle_t *zhp;
send_data_t sd = { 0 };
int error;
zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
if (zhp == NULL)
return (EZFS_BADTYPE);
VERIFY(0 == nvlist_alloc(&sd.fss, NV_UNIQUE_NAME, 0));
sd.fromsnap = fromsnap;
sd.tosnap = tosnap;
sd.recursive = recursive;
2008-11-20 20:01:55 +00:00
if ((error = send_iterate_fs(zhp, &sd)) != 0) {
nvlist_free(sd.fss);
if (avlp != NULL)
*avlp = NULL;
*nvlp = NULL;
return (error);
}
if (avlp != NULL && (*avlp = fsavl_create(sd.fss)) == NULL) {
nvlist_free(sd.fss);
*nvlp = NULL;
return (EZFS_NOMEM);
}
*nvlp = sd.fss;
return (0);
}
/*
* Routines specific to "zfs send"
*/
typedef struct send_dump_data {
/* these are all just the short snapname (the part after the @) */
const char *fromsnap;
const char *tosnap;
char prevsnap[ZFS_MAX_DATASET_NAME_LEN];
uint64_t prevsnap_obj;
2008-11-20 20:01:55 +00:00
boolean_t seenfrom, seento, replicate, doall, fromorigin;
boolean_t verbose, dryrun, parsable, progress, embed_data, std_out;
boolean_t large_block;
2008-11-20 20:01:55 +00:00
int outfd;
boolean_t err;
nvlist_t *fss;
nvlist_t *snapholds;
2008-11-20 20:01:55 +00:00
avl_tree_t *fsavl;
snapfilter_cb_t *filter_cb;
void *filter_cb_arg;
nvlist_t *debugnv;
char holdtag[ZFS_MAX_DATASET_NAME_LEN];
int cleanup_fd;
uint64_t size;
2008-11-20 20:01:55 +00:00
} send_dump_data_t;
static int
estimate_ioctl(zfs_handle_t *zhp, uint64_t fromsnap_obj,
boolean_t fromorigin, uint64_t *sizep)
{
zfs_cmd_t zc = {"\0"};
libzfs_handle_t *hdl = zhp->zfs_hdl;
assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
assert(fromsnap_obj == 0 || !fromorigin);
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
zc.zc_obj = fromorigin;
zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
zc.zc_fromobj = fromsnap_obj;
zc.zc_guid = 1; /* estimate flag */
if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND, &zc) != 0) {
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"warning: cannot estimate space for '%s'"), zhp->zfs_name);
switch (errno) {
case EXDEV:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"not an earlier snapshot from the same fs"));
return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));
case ENOENT:
if (zfs_dataset_exists(hdl, zc.zc_name,
ZFS_TYPE_SNAPSHOT)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"incremental source (@%s) does not exist"),
zc.zc_value);
}
return (zfs_error(hdl, EZFS_NOENT, errbuf));
case EDQUOT:
case EFBIG:
case EIO:
case ENOLINK:
case ENOSPC:
case ENOSTR:
case ENXIO:
case EPIPE:
case ERANGE:
case EFAULT:
case EROFS:
zfs_error_aux(hdl, strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default:
return (zfs_standard_error(hdl, errno, errbuf));
}
}
*sizep = zc.zc_objset_type;
return (0);
}
2008-11-20 20:01:55 +00:00
/*
* Dumps a backup of the given snapshot (incremental from fromsnap if it's not
* NULL) to the file descriptor specified by outfd.
*/
static int
dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, uint64_t fromsnap_obj,
boolean_t fromorigin, int outfd, enum lzc_send_flags flags,
nvlist_t *debugnv)
2008-11-20 20:01:55 +00:00
{
zfs_cmd_t zc = {"\0"};
2008-11-20 20:01:55 +00:00
libzfs_handle_t *hdl = zhp->zfs_hdl;
nvlist_t *thisdbg;
2008-11-20 20:01:55 +00:00
assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
assert(fromsnap_obj == 0 || !fromorigin);
2008-11-20 20:01:55 +00:00
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
zc.zc_cookie = outfd;
zc.zc_obj = fromorigin;
zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
zc.zc_fromobj = fromsnap_obj;
zc.zc_flags = flags;
VERIFY(0 == nvlist_alloc(&thisdbg, NV_UNIQUE_NAME, 0));
if (fromsnap && fromsnap[0] != '\0') {
VERIFY(0 == nvlist_add_string(thisdbg,
"fromsnap", fromsnap));
}
if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND, &zc) != 0) {
2008-11-20 20:01:55 +00:00
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"warning: cannot send '%s'"), zhp->zfs_name);
VERIFY(0 == nvlist_add_uint64(thisdbg, "error", errno));
if (debugnv) {
VERIFY(0 == nvlist_add_nvlist(debugnv,
zhp->zfs_name, thisdbg));
}
nvlist_free(thisdbg);
2008-11-20 20:01:55 +00:00
switch (errno) {
case EXDEV:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"not an earlier snapshot from the same fs"));
return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));
case ENOENT:
if (zfs_dataset_exists(hdl, zc.zc_name,
ZFS_TYPE_SNAPSHOT)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"incremental source (@%s) does not exist"),
zc.zc_value);
}
return (zfs_error(hdl, EZFS_NOENT, errbuf));
case EDQUOT:
case EFBIG:
case EIO:
case ENOLINK:
case ENOSPC:
case ENOSTR:
case ENXIO:
case EPIPE:
case ERANGE:
case EFAULT:
case EROFS:
zfs_error_aux(hdl, strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default:
return (zfs_standard_error(hdl, errno, errbuf));
}
}
if (debugnv)
VERIFY(0 == nvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg));
nvlist_free(thisdbg);
2008-11-20 20:01:55 +00:00
return (0);
}
static void
gather_holds(zfs_handle_t *zhp, send_dump_data_t *sdd)
{
assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
/*
* zfs_send() only sets snapholds for sends that need them,
* e.g. replication and doall.
*/
if (sdd->snapholds == NULL)
return;
fnvlist_add_string(sdd->snapholds, zhp->zfs_name, sdd->holdtag);
}
static void *
send_progress_thread(void *arg)
{
progress_arg_t *pa = arg;
zfs_cmd_t zc = {"\0"};
zfs_handle_t *zhp = pa->pa_zhp;
libzfs_handle_t *hdl = zhp->zfs_hdl;
unsigned long long bytes;
char buf[16];
time_t t;
struct tm *tm;
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
if (!pa->pa_parsable)
(void) fprintf(stderr, "TIME SENT SNAPSHOT\n");
/*
* Print the progress from ZFS_IOC_SEND_PROGRESS every second.
*/
for (;;) {
(void) sleep(1);
zc.zc_cookie = pa->pa_fd;
if (zfs_ioctl(hdl, ZFS_IOC_SEND_PROGRESS, &zc) != 0)
return ((void *)-1);
(void) time(&t);
tm = localtime(&t);
bytes = zc.zc_cookie;
if (pa->pa_parsable) {
(void) fprintf(stderr, "%02d:%02d:%02d\t%llu\t%s\n",
tm->tm_hour, tm->tm_min, tm->tm_sec,
bytes, zhp->zfs_name);
} else {
zfs_nicenum(bytes, buf, sizeof (buf));
(void) fprintf(stderr, "%02d:%02d:%02d %5s %s\n",
tm->tm_hour, tm->tm_min, tm->tm_sec,
buf, zhp->zfs_name);
}
}
}
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
static void
send_print_verbose(FILE *fout, const char *tosnap, const char *fromsnap,
uint64_t size, boolean_t parsable)
{
if (parsable) {
if (fromsnap != NULL) {
(void) fprintf(fout, "incremental\t%s\t%s",
fromsnap, tosnap);
} else {
(void) fprintf(fout, "full\t%s",
tosnap);
}
} else {
if (fromsnap != NULL) {
if (strchr(fromsnap, '@') == NULL &&
strchr(fromsnap, '#') == NULL) {
(void) fprintf(fout, dgettext(TEXT_DOMAIN,
"send from @%s to %s"),
fromsnap, tosnap);
} else {
(void) fprintf(fout, dgettext(TEXT_DOMAIN,
"send from %s to %s"),
fromsnap, tosnap);
}
} else {
(void) fprintf(fout, dgettext(TEXT_DOMAIN,
"full send of %s"),
tosnap);
}
}
if (size != 0) {
if (parsable) {
(void) fprintf(fout, "\t%llu",
(longlong_t)size);
} else {
char buf[16];
zfs_nicenum(size, buf, sizeof (buf));
(void) fprintf(fout, dgettext(TEXT_DOMAIN,
" estimated size is %s"), buf);
}
}
(void) fprintf(fout, "\n");
}
2008-11-20 20:01:55 +00:00
static int
dump_snapshot(zfs_handle_t *zhp, void *arg)
{
send_dump_data_t *sdd = arg;
progress_arg_t pa = { 0 };
pthread_t tid;
char *thissnap;
2008-11-20 20:01:55 +00:00
int err;
boolean_t isfromsnap, istosnap, fromorigin;
boolean_t exclude = B_FALSE;
FILE *fout = sdd->std_out ? stdout : stderr;
2008-11-20 20:01:55 +00:00
err = 0;
2008-11-20 20:01:55 +00:00
thissnap = strchr(zhp->zfs_name, '@') + 1;
isfromsnap = (sdd->fromsnap != NULL &&
strcmp(sdd->fromsnap, thissnap) == 0);
2008-11-20 20:01:55 +00:00
if (!sdd->seenfrom && isfromsnap) {
gather_holds(zhp, sdd);
sdd->seenfrom = B_TRUE;
(void) strcpy(sdd->prevsnap, thissnap);
sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
2008-11-20 20:01:55 +00:00
zfs_close(zhp);
return (0);
2008-11-20 20:01:55 +00:00
}
if (sdd->seento || !sdd->seenfrom) {
zfs_close(zhp);
return (0);
}
istosnap = (strcmp(sdd->tosnap, thissnap) == 0);
if (istosnap)
sdd->seento = B_TRUE;
if (!sdd->doall && !isfromsnap && !istosnap) {
if (sdd->replicate) {
char *snapname;
nvlist_t *snapprops;
/*
* Filter out all intermediate snapshots except origin
* snapshots needed to replicate clones.
*/
nvlist_t *nvfs = fsavl_find(sdd->fsavl,
zhp->zfs_dmustats.dds_guid, &snapname);
VERIFY(0 == nvlist_lookup_nvlist(nvfs,
"snapprops", &snapprops));
VERIFY(0 == nvlist_lookup_nvlist(snapprops,
thissnap, &snapprops));
exclude = !nvlist_exists(snapprops, "is_clone_origin");
} else {
exclude = B_TRUE;
}
}
/*
* If a filter function exists, call it to determine whether
* this snapshot will be sent.
*/
if (exclude || (sdd->filter_cb != NULL &&
sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) {
/*
* This snapshot is filtered out. Don't send it, and don't
* set prevsnap_obj, so it will be as if this snapshot didn't
* exist, and the next accepted snapshot will be sent as
* an incremental from the last accepted one, or as the
* first (and full) snapshot in the case of a replication,
* non-incremental send.
*/
zfs_close(zhp);
return (0);
}
gather_holds(zhp, sdd);
fromorigin = sdd->prevsnap[0] == '\0' &&
(sdd->fromorigin || sdd->replicate);
2008-11-20 20:01:55 +00:00
if (sdd->verbose) {
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
uint64_t size = 0;
(void) estimate_ioctl(zhp, sdd->prevsnap_obj,
fromorigin, &size);
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
send_print_verbose(fout, zhp->zfs_name,
sdd->prevsnap[0] ? sdd->prevsnap : NULL,
size, sdd->parsable);
sdd->size += size;
2008-11-20 20:01:55 +00:00
}
if (!sdd->dryrun) {
/*
* If progress reporting is requested, spawn a new thread to
* poll ZFS_IOC_SEND_PROGRESS at a regular interval.
*/
if (sdd->progress) {
pa.pa_zhp = zhp;
pa.pa_fd = sdd->outfd;
pa.pa_parsable = sdd->parsable;
if ((err = pthread_create(&tid, NULL,
send_progress_thread, &pa))) {
zfs_close(zhp);
return (err);
}
}
enum lzc_send_flags flags = 0;
Illumos 5027 - zfs large block support 5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #354
2014-11-03 20:15:08 +00:00
if (sdd->large_block)
flags |= LZC_SEND_FLAG_LARGE_BLOCK;
if (sdd->embed_data)
flags |= LZC_SEND_FLAG_EMBED_DATA;
err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj,
fromorigin, sdd->outfd, flags, sdd->debugnv);
if (sdd->progress) {
(void) pthread_cancel(tid);
(void) pthread_join(tid, NULL);
}
}
2008-11-20 20:01:55 +00:00
(void) strcpy(sdd->prevsnap, thissnap);
sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
2008-11-20 20:01:55 +00:00
zfs_close(zhp);
return (err);
}
static int
dump_filesystem(zfs_handle_t *zhp, void *arg)
{
int rv = 0;
send_dump_data_t *sdd = arg;
boolean_t missingfrom = B_FALSE;
zfs_cmd_t zc = {"\0"};
2008-11-20 20:01:55 +00:00
(void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s",
zhp->zfs_name, sdd->tosnap);
if (ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"WARNING: could not send %s@%s: does not exist\n"),
2008-11-20 20:01:55 +00:00
zhp->zfs_name, sdd->tosnap);
sdd->err = B_TRUE;
return (0);
}
if (sdd->replicate && sdd->fromsnap) {
/*
* If this fs does not have fromsnap, and we're doing
* recursive, we need to send a full stream from the
* beginning (or an incremental from the origin if this
* is a clone). If we're doing non-recursive, then let
* them get the error.
*/
(void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s",
zhp->zfs_name, sdd->fromsnap);
if (ioctl(zhp->zfs_hdl->libzfs_fd,
ZFS_IOC_OBJSET_STATS, &zc) != 0) {
missingfrom = B_TRUE;
}
}
sdd->seenfrom = sdd->seento = sdd->prevsnap[0] = 0;
sdd->prevsnap_obj = 0;
if (sdd->fromsnap == NULL || missingfrom)
sdd->seenfrom = B_TRUE;
2008-11-20 20:01:55 +00:00
rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, arg);
if (!sdd->seenfrom) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"WARNING: could not send %s@%s:\n"
"incremental source (%s@%s) does not exist\n"),
zhp->zfs_name, sdd->tosnap,
zhp->zfs_name, sdd->fromsnap);
sdd->err = B_TRUE;
} else if (!sdd->seento) {
if (sdd->fromsnap) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
2008-11-20 20:01:55 +00:00
"WARNING: could not send %s@%s:\n"
"incremental source (%s@%s) "
"is not earlier than it\n"),
2008-11-20 20:01:55 +00:00
zhp->zfs_name, sdd->tosnap,
zhp->zfs_name, sdd->fromsnap);
} else {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"WARNING: "
"could not send %s@%s: does not exist\n"),
zhp->zfs_name, sdd->tosnap);
2008-11-20 20:01:55 +00:00
}
sdd->err = B_TRUE;
2008-11-20 20:01:55 +00:00
}
return (rv);
}
static int
dump_filesystems(zfs_handle_t *rzhp, void *arg)
{
send_dump_data_t *sdd = arg;
nvpair_t *fspair;
boolean_t needagain, progress;
if (!sdd->replicate)
return (dump_filesystem(rzhp, sdd));
/* Mark the clone origin snapshots. */
for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair;
fspair = nvlist_next_nvpair(sdd->fss, fspair)) {
nvlist_t *nvfs;
uint64_t origin_guid = 0;
VERIFY(0 == nvpair_value_nvlist(fspair, &nvfs));
(void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid);
if (origin_guid != 0) {
char *snapname;
nvlist_t *origin_nv = fsavl_find(sdd->fsavl,
origin_guid, &snapname);
if (origin_nv != NULL) {
nvlist_t *snapprops;
VERIFY(0 == nvlist_lookup_nvlist(origin_nv,
"snapprops", &snapprops));
VERIFY(0 == nvlist_lookup_nvlist(snapprops,
snapname, &snapprops));
VERIFY(0 == nvlist_add_boolean(
snapprops, "is_clone_origin"));
}
}
}
2008-11-20 20:01:55 +00:00
again:
needagain = progress = B_FALSE;
for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair;
fspair = nvlist_next_nvpair(sdd->fss, fspair)) {
nvlist_t *fslist, *parent_nv;
2008-11-20 20:01:55 +00:00
char *fsname;
zfs_handle_t *zhp;
int err;
uint64_t origin_guid = 0;
uint64_t parent_guid = 0;
2008-11-20 20:01:55 +00:00
VERIFY(nvpair_value_nvlist(fspair, &fslist) == 0);
if (nvlist_lookup_boolean(fslist, "sent") == 0)
continue;
VERIFY(nvlist_lookup_string(fslist, "name", &fsname) == 0);
(void) nvlist_lookup_uint64(fslist, "origin", &origin_guid);
(void) nvlist_lookup_uint64(fslist, "parentfromsnap",
&parent_guid);
if (parent_guid != 0) {
parent_nv = fsavl_find(sdd->fsavl, parent_guid, NULL);
if (!nvlist_exists(parent_nv, "sent")) {
/* parent has not been sent; skip this one */
needagain = B_TRUE;
continue;
}
}
2008-11-20 20:01:55 +00:00
if (origin_guid != 0) {
nvlist_t *origin_nv = fsavl_find(sdd->fsavl,
origin_guid, NULL);
if (origin_nv != NULL &&
!nvlist_exists(origin_nv, "sent")) {
/*
* origin has not been sent yet;
* skip this clone.
*/
needagain = B_TRUE;
continue;
}
2008-11-20 20:01:55 +00:00
}
zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET);
if (zhp == NULL)
return (-1);
err = dump_filesystem(zhp, sdd);
VERIFY(nvlist_add_boolean(fslist, "sent") == 0);
progress = B_TRUE;
zfs_close(zhp);
if (err)
return (err);
}
if (needagain) {
assert(progress);
goto again;
}
/* clean out the sent flags in case we reuse this fss */
for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair;
fspair = nvlist_next_nvpair(sdd->fss, fspair)) {
nvlist_t *fslist;
VERIFY(nvpair_value_nvlist(fspair, &fslist) == 0);
(void) nvlist_remove_all(fslist, "sent");
}
2008-11-20 20:01:55 +00:00
return (0);
}
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
nvlist_t *
zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token)
{
unsigned int version;
int nread, i;
unsigned long long checksum, packed_len;
/*
* Decode token header, which is:
* <token version>-<checksum of payload>-<uncompressed payload length>
* Note that the only supported token version is 1.
*/
nread = sscanf(token, "%u-%llx-%llx-",
&version, &checksum, &packed_len);
if (nread != 3) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt (invalid format)"));
return (NULL);
}
if (version != ZFS_SEND_RESUME_TOKEN_VERSION) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt (invalid version %u)"),
version);
return (NULL);
}
/* convert hexadecimal representation to binary */
token = strrchr(token, '-') + 1;
int len = strlen(token) / 2;
unsigned char *compressed = zfs_alloc(hdl, len);
for (i = 0; i < len; i++) {
nread = sscanf(token + i * 2, "%2hhx", compressed + i);
if (nread != 1) {
free(compressed);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt "
"(payload is not hex-encoded)"));
return (NULL);
}
}
/* verify checksum */
zio_cksum_t cksum;
Rework of fletcher_4 module - Benchmark memory block is increased to 128kiB to reflect real block sizes more accurately. Measurements include all three stages needed for checksum generation, i.e. `init()/compute()/fini()`. The inner loop is repeated multiple times to offset overhead of time function. - Fastest implementation selects native and byteswap methods independently in benchmark. To support this new function pointers `init_byteswap()/fini_byteswap()` are introduced. - Implementation mutex lock is replaced by atomic variable. - To save time, benchmark is not executed in userspace. Instead, highest supported implementation is used for fastest. Default userspace selector is still 'cycle'. - `fletcher_4_native/byteswap()` methods use incremental methods to finish calculation if data size is not multiple of vector stride (currently 64B). - Added `fletcher_4_native_varsize()` special purpose method for use when buffer size is not known in advance. The method does not enforce 4B alignment on buffer size, and will ignore last (size % 4) bytes of the data buffer. - Benchmark `kstat` is changed to match the one of vdev_raidz. It now shows throughput for all supported implementations (in B/s), native and byteswap, as well as the code [fastest] is running. Example of `fletcher_4_bench` running on `Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz`: implementation native byteswap scalar 4768120823 3426105750 sse2 7947841777 4318964249 ssse3 7951922722 6112191941 avx2 13269714358 11043200912 fastest avx2 avx2 Example of `fletcher_4_bench` running on `Intel(R) Xeon Phi(TM) CPU 7210 @ 1.30GHz`: implementation native byteswap scalar 1291115967 1031555336 sse2 2539571138 1280970926 ssse3 2537778746 1080016762 avx2 4950749767 1078493449 avx512f 9581379998 4010029046 fastest avx512f avx512f Signed-off-by: Gvozden Neskovic <neskovic@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4952
2016-07-12 15:50:54 +00:00
fletcher_4_native_varsize(compressed, len, &cksum);
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
if (cksum.zc_word[0] != checksum) {
free(compressed);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt (incorrect checksum)"));
return (NULL);
}
/* uncompress */
void *packed = zfs_alloc(hdl, packed_len);
uLongf packed_len_long = packed_len;
if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK ||
packed_len_long != packed_len) {
free(packed);
free(compressed);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt (decompression failed)"));
return (NULL);
}
/* unpack nvlist */
nvlist_t *nv;
int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP);
free(packed);
free(compressed);
if (error != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt (nvlist_unpack failed)"));
return (NULL);
}
return (nv);
}
int
zfs_send_resume(libzfs_handle_t *hdl, sendflags_t *flags, int outfd,
const char *resume_token)
{
char errbuf[1024];
char *toname;
char *fromname = NULL;
uint64_t resumeobj, resumeoff, toguid, fromguid, bytes;
zfs_handle_t *zhp;
int error = 0;
char name[ZFS_MAX_DATASET_NAME_LEN];
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
enum lzc_send_flags lzc_flags = 0;
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot resume send"));
nvlist_t *resume_nvl =
zfs_send_resume_token_to_nvlist(hdl, resume_token);
if (resume_nvl == NULL) {
/*
* zfs_error_aux has already been set by
* zfs_send_resume_token_to_nvlist
*/
return (zfs_error(hdl, EZFS_FAULT, errbuf));
}
if (flags->verbose) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"resume token contents:\n"));
nvlist_print(stderr, resume_nvl);
}
if (nvlist_lookup_string(resume_nvl, "toname", &toname) != 0 ||
nvlist_lookup_uint64(resume_nvl, "object", &resumeobj) != 0 ||
nvlist_lookup_uint64(resume_nvl, "offset", &resumeoff) != 0 ||
nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 ||
nvlist_lookup_uint64(resume_nvl, "toguid", &toguid) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"resume token is corrupt"));
return (zfs_error(hdl, EZFS_FAULT, errbuf));
}
fromguid = 0;
(void) nvlist_lookup_uint64(resume_nvl, "fromguid", &fromguid);
if (flags->embed_data || nvlist_exists(resume_nvl, "embedok"))
lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
if (guid_to_name(hdl, toname, toguid, B_FALSE, name) != 0) {
if (zfs_dataset_exists(hdl, toname, ZFS_TYPE_DATASET)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' is no longer the same snapshot used in "
"the initial send"), toname);
} else {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' used in the initial send no longer exists"),
toname);
}
return (zfs_error(hdl, EZFS_BADPATH, errbuf));
}
zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
if (zhp == NULL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"unable to access '%s'"), name);
return (zfs_error(hdl, EZFS_BADPATH, errbuf));
}
if (fromguid != 0) {
if (guid_to_name(hdl, toname, fromguid, B_TRUE, name) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"incremental source %#llx no longer exists"),
(longlong_t)fromguid);
return (zfs_error(hdl, EZFS_BADPATH, errbuf));
}
fromname = name;
}
if (flags->verbose) {
uint64_t size = 0;
error = lzc_send_space(zhp->zfs_name, fromname, &size);
if (error == 0)
size = MAX(0, (int64_t)(size - bytes));
send_print_verbose(stderr, zhp->zfs_name, fromname,
size, flags->parsable);
}
if (!flags->dryrun) {
progress_arg_t pa = { 0 };
pthread_t tid;
/*
* If progress reporting is requested, spawn a new thread to
* poll ZFS_IOC_SEND_PROGRESS at a regular interval.
*/
if (flags->progress) {
pa.pa_zhp = zhp;
pa.pa_fd = outfd;
pa.pa_parsable = flags->parsable;
error = pthread_create(&tid, NULL,
send_progress_thread, &pa);
if (error != 0) {
zfs_close(zhp);
return (error);
}
}
error = lzc_send_resume(zhp->zfs_name, fromname, outfd,
lzc_flags, resumeobj, resumeoff);
if (flags->progress) {
(void) pthread_cancel(tid);
(void) pthread_join(tid, NULL);
}
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"warning: cannot send '%s'"), zhp->zfs_name);
zfs_close(zhp);
switch (error) {
case 0:
return (0);
case EXDEV:
case ENOENT:
case EDQUOT:
case EFBIG:
case EIO:
case ENOLINK:
case ENOSPC:
case ENOSTR:
case ENXIO:
case EPIPE:
case ERANGE:
case EFAULT:
case EROFS:
zfs_error_aux(hdl, strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default:
return (zfs_standard_error(hdl, errno, errbuf));
}
}
zfs_close(zhp);
return (error);
}
2008-11-20 20:01:55 +00:00
/*
2009-08-18 18:43:27 +00:00
* Generate a send stream for the dataset identified by the argument zhp.
*
* The content of the send stream is the snapshot identified by
* 'tosnap'. Incremental streams are requested in two ways:
* - from the snapshot identified by "fromsnap" (if non-null) or
* - from the origin of the dataset identified by zhp, which must
* be a clone. In this case, "fromsnap" is null and "fromorigin"
* is TRUE.
*
* The send stream is recursive (i.e. dumps a hierarchy of snapshots) and
* uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM)
2009-08-18 18:43:27 +00:00
* if "replicate" is set. If "doall" is set, dump all the intermediate
* snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall"
* case too. If "props" is set, send properties.
2008-11-20 20:01:55 +00:00
*/
int
zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
sendflags_t *flags, int outfd, snapfilter_cb_t filter_func,
void *cb_arg, nvlist_t **debugnvp)
2008-11-20 20:01:55 +00:00
{
char errbuf[1024];
send_dump_data_t sdd = { 0 };
int err = 0;
2008-11-20 20:01:55 +00:00
nvlist_t *fss = NULL;
avl_tree_t *fsavl = NULL;
static uint64_t holdseq;
int spa_version;
pthread_t tid = 0;
int pipefd[2];
dedup_arg_t dda = { 0 };
int featureflags = 0;
FILE *fout;
2008-11-20 20:01:55 +00:00
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot send '%s'"), zhp->zfs_name);
if (fromsnap && fromsnap[0] == '\0') {
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"zero-length incremental source"));
return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf));
}
if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM) {
uint64_t version;
version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
if (version >= ZPL_VERSION_SA) {
featureflags |= DMU_BACKUP_FEATURE_SA_SPILL;
}
}
if (flags->dedup && !flags->dryrun) {
featureflags |= (DMU_BACKUP_FEATURE_DEDUP |
DMU_BACKUP_FEATURE_DEDUPPROPS);
if ((err = socketpair(AF_UNIX, SOCK_STREAM, 0, pipefd))) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno));
return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED,
errbuf));
}
dda.outputfd = outfd;
dda.inputfd = pipefd[1];
dda.dedup_hdl = zhp->zfs_hdl;
if ((err = pthread_create(&tid, NULL, cksummer, &dda))) {
(void) close(pipefd[0]);
(void) close(pipefd[1]);
zfs_error_aux(zhp->zfs_hdl, strerror(errno));
return (zfs_error(zhp->zfs_hdl,
EZFS_THREADCREATEFAILED, errbuf));
}
}
if (flags->replicate || flags->doall || flags->props) {
2008-11-20 20:01:55 +00:00
dmu_replay_record_t drr = { 0 };
char *packbuf = NULL;
size_t buflen = 0;
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
zio_cksum_t zc;
ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
2008-11-20 20:01:55 +00:00
if (flags->replicate || flags->props) {
2008-11-20 20:01:55 +00:00
nvlist_t *hdrnv;
VERIFY(0 == nvlist_alloc(&hdrnv, NV_UNIQUE_NAME, 0));
if (fromsnap) {
VERIFY(0 == nvlist_add_string(hdrnv,
"fromsnap", fromsnap));
}
VERIFY(0 == nvlist_add_string(hdrnv, "tosnap", tosnap));
if (!flags->replicate) {
VERIFY(0 == nvlist_add_boolean(hdrnv,
"not_recursive"));
}
2008-11-20 20:01:55 +00:00
err = gather_nvlist(zhp->zfs_hdl, zhp->zfs_name,
fromsnap, tosnap, flags->replicate, &fss, &fsavl);
if (err)
goto err_out;
2008-11-20 20:01:55 +00:00
VERIFY(0 == nvlist_add_nvlist(hdrnv, "fss", fss));
err = nvlist_pack(hdrnv, &packbuf, &buflen,
NV_ENCODE_XDR, 0);
if (debugnvp)
*debugnvp = hdrnv;
else
nvlist_free(hdrnv);
if (err)
goto stderr_out;
2008-11-20 20:01:55 +00:00
}
if (!flags->dryrun) {
/* write first begin record */
drr.drr_type = DRR_BEGIN;
drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC;
DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin.
drr_versioninfo, DMU_COMPOUNDSTREAM);
DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin.
drr_versioninfo, featureflags);
(void) snprintf(drr.drr_u.drr_begin.drr_toname,
sizeof (drr.drr_u.drr_begin.drr_toname),
"%s@%s", zhp->zfs_name, tosnap);
drr.drr_payloadlen = buflen;
err = dump_record(&drr, packbuf, buflen, &zc, outfd);
free(packbuf);
if (err != 0)
goto stderr_out;
2008-11-20 20:01:55 +00:00
/* write end record */
2008-11-20 20:01:55 +00:00
bzero(&drr, sizeof (drr));
drr.drr_type = DRR_END;
drr.drr_u.drr_end.drr_checksum = zc;
err = write(outfd, &drr, sizeof (drr));
if (err == -1) {
err = errno;
goto stderr_out;
2008-11-20 20:01:55 +00:00
}
err = 0;
2008-11-20 20:01:55 +00:00
}
}
/* dump each stream */
sdd.fromsnap = fromsnap;
sdd.tosnap = tosnap;
if (tid != 0)
sdd.outfd = pipefd[0];
else
sdd.outfd = outfd;
sdd.replicate = flags->replicate;
sdd.doall = flags->doall;
sdd.fromorigin = flags->fromorigin;
2008-11-20 20:01:55 +00:00
sdd.fss = fss;
sdd.fsavl = fsavl;
sdd.verbose = flags->verbose;
sdd.parsable = flags->parsable;
sdd.progress = flags->progress;
sdd.dryrun = flags->dryrun;
Illumos 5027 - zfs large block support 5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #354
2014-11-03 20:15:08 +00:00
sdd.large_block = flags->largeblock;
sdd.embed_data = flags->embed_data;
sdd.filter_cb = filter_func;
sdd.filter_cb_arg = cb_arg;
if (debugnvp)
sdd.debugnv = *debugnvp;
if (sdd.verbose && sdd.dryrun)
sdd.std_out = B_TRUE;
fout = sdd.std_out ? stdout : stderr;
/*
* Some flags require that we place user holds on the datasets that are
* being sent so they don't get destroyed during the send. We can skip
* this step if the pool is imported read-only since the datasets cannot
* be destroyed.
*/
if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp),
ZPOOL_PROP_READONLY, NULL) &&
zfs_spa_version(zhp, &spa_version) == 0 &&
spa_version >= SPA_VERSION_USERREFS &&
(flags->doall || flags->replicate)) {
++holdseq;
(void) snprintf(sdd.holdtag, sizeof (sdd.holdtag),
".send-%d-%llu", getpid(), (u_longlong_t)holdseq);
sdd.cleanup_fd = open(ZFS_DEV, O_RDWR);
if (sdd.cleanup_fd < 0) {
err = errno;
goto stderr_out;
}
sdd.snapholds = fnvlist_alloc();
} else {
sdd.cleanup_fd = -1;
sdd.snapholds = NULL;
}
if (flags->verbose || sdd.snapholds != NULL) {
/*
* Do a verbose no-op dry run to get all the verbose output
* or to gather snapshot hold's before generating any data,
* then do a non-verbose real run to generate the streams.
*/
sdd.dryrun = B_TRUE;
err = dump_filesystems(zhp, &sdd);
if (err != 0)
goto stderr_out;
if (flags->verbose) {
if (flags->parsable) {
(void) fprintf(fout, "size\t%llu\n",
(longlong_t)sdd.size);
} else {
char buf[16];
zfs_nicenum(sdd.size, buf, sizeof (buf));
(void) fprintf(fout, dgettext(TEXT_DOMAIN,
"total estimated size is %s\n"), buf);
}
}
/* Ensure no snaps found is treated as an error. */
if (!sdd.seento) {
err = ENOENT;
goto err_out;
}
/* Skip the second run if dryrun was requested. */
if (flags->dryrun)
goto err_out;
if (sdd.snapholds != NULL) {
err = zfs_hold_nvl(zhp, sdd.cleanup_fd, sdd.snapholds);
if (err != 0)
goto stderr_out;
fnvlist_free(sdd.snapholds);
sdd.snapholds = NULL;
}
sdd.dryrun = B_FALSE;
sdd.verbose = B_FALSE;
}
2008-11-20 20:01:55 +00:00
err = dump_filesystems(zhp, &sdd);
fsavl_destroy(fsavl);
nvlist_free(fss);
/* Ensure no snaps found is treated as an error. */
if (err == 0 && !sdd.seento)
err = ENOENT;
if (tid != 0) {
if (err != 0)
(void) pthread_cancel(tid);
(void) close(pipefd[0]);
(void) pthread_join(tid, NULL);
}
if (sdd.cleanup_fd != -1) {
VERIFY(0 == close(sdd.cleanup_fd));
sdd.cleanup_fd = -1;
}
if (!flags->dryrun && (flags->replicate || flags->doall ||
flags->props)) {
2008-11-20 20:01:55 +00:00
/*
* write final end record. NB: want to do this even if
* there was some error, because it might not be totally
* failed.
*/
dmu_replay_record_t drr = { 0 };
drr.drr_type = DRR_END;
if (write(outfd, &drr, sizeof (drr)) == -1) {
return (zfs_standard_error(zhp->zfs_hdl,
errno, errbuf));
}
}
return (err || sdd.err);
stderr_out:
err = zfs_standard_error(zhp->zfs_hdl, err, errbuf);
err_out:
fsavl_destroy(fsavl);
nvlist_free(fss);
fnvlist_free(sdd.snapholds);
if (sdd.cleanup_fd != -1)
VERIFY(0 == close(sdd.cleanup_fd));
if (tid != 0) {
(void) pthread_cancel(tid);
(void) close(pipefd[0]);
(void) pthread_join(tid, NULL);
}
return (err);
2008-11-20 20:01:55 +00:00
}
int
zfs_send_one(zfs_handle_t *zhp, const char *from, int fd,
enum lzc_send_flags flags)
{
int err;
libzfs_handle_t *hdl = zhp->zfs_hdl;
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"warning: cannot send '%s'"), zhp->zfs_name);
err = lzc_send(zhp->zfs_name, from, fd, flags);
if (err != 0) {
switch (errno) {
case EXDEV:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"not an earlier snapshot from the same fs"));
return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));
case ENOENT:
case ESRCH:
if (lzc_exists(zhp->zfs_name)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"incremental source (%s) does not exist"),
from);
}
return (zfs_error(hdl, EZFS_NOENT, errbuf));
case EBUSY:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"target is busy; if a filesystem, "
"it must not be mounted"));
return (zfs_error(hdl, EZFS_BUSY, errbuf));
case EDQUOT:
case EFBIG:
case EIO:
case ENOLINK:
case ENOSPC:
case ENOSTR:
case ENXIO:
case EPIPE:
case ERANGE:
case EFAULT:
case EROFS:
zfs_error_aux(hdl, strerror(errno));
return (zfs_error(hdl, EZFS_BADBACKUP, errbuf));
default:
return (zfs_standard_error(hdl, errno, errbuf));
}
}
return (err != 0);
}
2008-11-20 20:01:55 +00:00
/*
* Routines specific to "zfs recv"
*/
static int
recv_read(libzfs_handle_t *hdl, int fd, void *buf, int ilen,
boolean_t byteswap, zio_cksum_t *zc)
{
char *cp = buf;
int rv;
int len = ilen;
assert(ilen <= SPA_MAXBLOCKSIZE);
2008-11-20 20:01:55 +00:00
do {
rv = read(fd, cp, len);
cp += rv;
len -= rv;
} while (rv > 0);
if (rv < 0 || len != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"failed to read from stream"));
return (zfs_error(hdl, EZFS_BADSTREAM, dgettext(TEXT_DOMAIN,
"cannot receive")));
}
if (zc) {
if (byteswap)
fletcher_4_incremental_byteswap(buf, ilen, zc);
else
fletcher_4_incremental_native(buf, ilen, zc);
}
return (0);
}
static int
recv_read_nvlist(libzfs_handle_t *hdl, int fd, int len, nvlist_t **nvp,
boolean_t byteswap, zio_cksum_t *zc)
{
char *buf;
int err;
buf = zfs_alloc(hdl, len);
if (buf == NULL)
return (ENOMEM);
err = recv_read(hdl, fd, buf, len, byteswap, zc);
if (err != 0) {
free(buf);
return (err);
}
err = nvlist_unpack(buf, len, nvp, 0);
free(buf);
if (err != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
"stream (malformed nvlist)"));
return (EINVAL);
}
return (0);
}
static int
recv_rename(libzfs_handle_t *hdl, const char *name, const char *tryname,
int baselen, char *newname, recvflags_t *flags)
2008-11-20 20:01:55 +00:00
{
static int seq;
zfs_cmd_t zc = {"\0"};
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int err;
prop_changelist_t *clp;
zfs_handle_t *zhp;
zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
if (zhp == NULL)
return (-1);
clp = changelist_gather(zhp, ZFS_PROP_NAME, 0,
flags->force ? MS_FORCE : 0);
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zfs_close(zhp);
if (clp == NULL)
return (-1);
err = changelist_prefix(clp);
if (err)
return (err);
2009-08-18 18:43:27 +00:00
zc.zc_objset_type = DMU_OST_ZFS;
(void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));
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if (tryname) {
(void) strcpy(newname, tryname);
(void) strlcpy(zc.zc_value, tryname, sizeof (zc.zc_value));
if (flags->verbose) {
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(void) printf("attempting rename %s to %s\n",
zc.zc_name, zc.zc_value);
}
err = ioctl(hdl->libzfs_fd, ZFS_IOC_RENAME, &zc);
if (err == 0)
changelist_rename(clp, name, tryname);
} else {
err = ENOENT;
}
if (err != 0 && strncmp(name + baselen, "recv-", 5) != 0) {
2008-11-20 20:01:55 +00:00
seq++;
(void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN,
"%.*srecv-%u-%u", baselen, name, getpid(), seq);
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(void) strlcpy(zc.zc_value, newname, sizeof (zc.zc_value));
if (flags->verbose) {
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(void) printf("failed - trying rename %s to %s\n",
zc.zc_name, zc.zc_value);
}
err = ioctl(hdl->libzfs_fd, ZFS_IOC_RENAME, &zc);
if (err == 0)
changelist_rename(clp, name, newname);
if (err && flags->verbose) {
2008-11-20 20:01:55 +00:00
(void) printf("failed (%u) - "
"will try again on next pass\n", errno);
}
err = EAGAIN;
} else if (flags->verbose) {
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if (err == 0)
(void) printf("success\n");
else
(void) printf("failed (%u)\n", errno);
}
(void) changelist_postfix(clp);
changelist_free(clp);
return (err);
}
static int
recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen,
char *newname, recvflags_t *flags)
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{
zfs_cmd_t zc = {"\0"};
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int err = 0;
prop_changelist_t *clp;
zfs_handle_t *zhp;
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boolean_t defer = B_FALSE;
int spa_version;
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zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET);
if (zhp == NULL)
return (-1);
clp = changelist_gather(zhp, ZFS_PROP_NAME, 0,
flags->force ? MS_FORCE : 0);
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if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT &&
zfs_spa_version(zhp, &spa_version) == 0 &&
spa_version >= SPA_VERSION_USERREFS)
defer = B_TRUE;
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zfs_close(zhp);
if (clp == NULL)
return (-1);
err = changelist_prefix(clp);
if (err)
return (err);
zc.zc_objset_type = DMU_OST_ZFS;
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zc.zc_defer_destroy = defer;
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(void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));
if (flags->verbose)
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(void) printf("attempting destroy %s\n", zc.zc_name);
err = ioctl(hdl->libzfs_fd, ZFS_IOC_DESTROY, &zc);
if (err == 0) {
if (flags->verbose)
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(void) printf("success\n");
changelist_remove(clp, zc.zc_name);
}
(void) changelist_postfix(clp);
changelist_free(clp);
2009-08-18 18:43:27 +00:00
/*
* Deferred destroy might destroy the snapshot or only mark it to be
* destroyed later, and it returns success in either case.
2009-08-18 18:43:27 +00:00
*/
if (err != 0 || (defer && zfs_dataset_exists(hdl, name,
ZFS_TYPE_SNAPSHOT))) {
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err = recv_rename(hdl, name, NULL, baselen, newname, flags);
}
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return (err);
}
typedef struct guid_to_name_data {
uint64_t guid;
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
boolean_t bookmark_ok;
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char *name;
char *skip;
2008-11-20 20:01:55 +00:00
} guid_to_name_data_t;
static int
guid_to_name_cb(zfs_handle_t *zhp, void *arg)
{
guid_to_name_data_t *gtnd = arg;
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
const char *slash;
2008-11-20 20:01:55 +00:00
int err;
if (gtnd->skip != NULL &&
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
(slash = strrchr(zhp->zfs_name, '/')) != NULL &&
strcmp(slash + 1, gtnd->skip) == 0) {
zfs_close(zhp);
return (0);
}
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
if (zfs_prop_get_int(zhp, ZFS_PROP_GUID) == gtnd->guid) {
2008-11-20 20:01:55 +00:00
(void) strcpy(gtnd->name, zhp->zfs_name);
zfs_close(zhp);
2008-11-20 20:01:55 +00:00
return (EEXIST);
}
2008-11-20 20:01:55 +00:00
err = zfs_iter_children(zhp, guid_to_name_cb, gtnd);
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
if (err != EEXIST && gtnd->bookmark_ok)
err = zfs_iter_bookmarks(zhp, guid_to_name_cb, gtnd);
2008-11-20 20:01:55 +00:00
zfs_close(zhp);
return (err);
}
/*
* Attempt to find the local dataset associated with this guid. In the case of
* multiple matches, we attempt to find the "best" match by searching
* progressively larger portions of the hierarchy. This allows one to send a
* tree of datasets individually and guarantee that we will find the source
* guid within that hierarchy, even if there are multiple matches elsewhere.
*/
2008-11-20 20:01:55 +00:00
static int
guid_to_name(libzfs_handle_t *hdl, const char *parent, uint64_t guid,
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
boolean_t bookmark_ok, char *name)
2008-11-20 20:01:55 +00:00
{
char pname[ZFS_MAX_DATASET_NAME_LEN];
2008-11-20 20:01:55 +00:00
guid_to_name_data_t gtnd;
gtnd.guid = guid;
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
gtnd.bookmark_ok = bookmark_ok;
2008-11-20 20:01:55 +00:00
gtnd.name = name;
gtnd.skip = NULL;
2008-11-20 20:01:55 +00:00
/*
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
* Search progressively larger portions of the hierarchy, starting
* with the filesystem specified by 'parent'. This will
* select the "most local" version of the origin snapshot in the case
* that there are multiple matching snapshots in the system.
*/
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
(void) strlcpy(pname, parent, sizeof (pname));
char *cp = strrchr(pname, '@');
if (cp == NULL)
cp = strchr(pname, '\0');
for (; cp != NULL; cp = strrchr(pname, '/')) {
/* Chop off the last component and open the parent */
2008-11-20 20:01:55 +00:00
*cp = '\0';
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
zfs_handle_t *zhp = make_dataset_handle(hdl, pname);
if (zhp == NULL)
continue;
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
int err = guid_to_name_cb(zfs_handle_dup(zhp), &gtnd);
if (err != EEXIST)
err = zfs_iter_children(zhp, guid_to_name_cb, &gtnd);
if (err != EEXIST && bookmark_ok)
err = zfs_iter_bookmarks(zhp, guid_to_name_cb, &gtnd);
2008-11-20 20:01:55 +00:00
zfs_close(zhp);
if (err == EEXIST)
return (0);
2008-11-20 20:01:55 +00:00
/*
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
* Remember the last portion of the dataset so we skip it next
* time through (as we've already searched that portion of the
* hierarchy).
*/
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
gtnd.skip = strrchr(pname, '/') + 1;
}
2008-11-20 20:01:55 +00:00
return (ENOENT);
2008-11-20 20:01:55 +00:00
}
/*
* Return +1 if guid1 is before guid2, 0 if they are the same, and -1 if
* guid1 is after guid2.
2008-11-20 20:01:55 +00:00
*/
static int
created_before(libzfs_handle_t *hdl, avl_tree_t *avl,
uint64_t guid1, uint64_t guid2)
{
nvlist_t *nvfs;
char *fsname = NULL, *snapname = NULL;
char buf[ZFS_MAX_DATASET_NAME_LEN];
2008-11-20 20:01:55 +00:00
int rv;
zfs_handle_t *guid1hdl, *guid2hdl;
uint64_t create1, create2;
2008-11-20 20:01:55 +00:00
if (guid2 == 0)
return (0);
if (guid1 == 0)
return (1);
nvfs = fsavl_find(avl, guid1, &snapname);
VERIFY(0 == nvlist_lookup_string(nvfs, "name", &fsname));
(void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname);
guid1hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT);
if (guid1hdl == NULL)
2008-11-20 20:01:55 +00:00
return (-1);
nvfs = fsavl_find(avl, guid2, &snapname);
VERIFY(0 == nvlist_lookup_string(nvfs, "name", &fsname));
(void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname);
guid2hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT);
if (guid2hdl == NULL) {
zfs_close(guid1hdl);
2008-11-20 20:01:55 +00:00
return (-1);
}
create1 = zfs_prop_get_int(guid1hdl, ZFS_PROP_CREATETXG);
create2 = zfs_prop_get_int(guid2hdl, ZFS_PROP_CREATETXG);
2008-11-20 20:01:55 +00:00
if (create1 < create2)
rv = -1;
else if (create1 > create2)
rv = +1;
else
rv = 0;
zfs_close(guid1hdl);
zfs_close(guid2hdl);
2008-11-20 20:01:55 +00:00
return (rv);
}
static int
recv_incremental_replication(libzfs_handle_t *hdl, const char *tofs,
recvflags_t *flags, nvlist_t *stream_nv, avl_tree_t *stream_avl,
nvlist_t *renamed)
2008-11-20 20:01:55 +00:00
{
nvlist_t *local_nv, *deleted = NULL;
2008-11-20 20:01:55 +00:00
avl_tree_t *local_avl;
nvpair_t *fselem, *nextfselem;
char *fromsnap;
char newname[ZFS_MAX_DATASET_NAME_LEN];
char guidname[32];
2008-11-20 20:01:55 +00:00
int error;
boolean_t needagain, progress, recursive;
char *s1, *s2;
2008-11-20 20:01:55 +00:00
VERIFY(0 == nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap));
recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") ==
ENOENT);
2008-11-20 20:01:55 +00:00
if (flags->dryrun)
2008-11-20 20:01:55 +00:00
return (0);
again:
needagain = progress = B_FALSE;
VERIFY(0 == nvlist_alloc(&deleted, NV_UNIQUE_NAME, 0));
2008-11-20 20:01:55 +00:00
if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL,
recursive, &local_nv, &local_avl)) != 0)
2008-11-20 20:01:55 +00:00
return (error);
/*
* Process deletes and renames
*/
for (fselem = nvlist_next_nvpair(local_nv, NULL);
fselem; fselem = nextfselem) {
nvlist_t *nvfs, *snaps;
nvlist_t *stream_nvfs = NULL;
nvpair_t *snapelem, *nextsnapelem;
uint64_t fromguid = 0;
uint64_t originguid = 0;
uint64_t stream_originguid = 0;
uint64_t parent_fromsnap_guid, stream_parent_fromsnap_guid;
char *fsname, *stream_fsname;
nextfselem = nvlist_next_nvpair(local_nv, fselem);
VERIFY(0 == nvpair_value_nvlist(fselem, &nvfs));
VERIFY(0 == nvlist_lookup_nvlist(nvfs, "snaps", &snaps));
VERIFY(0 == nvlist_lookup_string(nvfs, "name", &fsname));
VERIFY(0 == nvlist_lookup_uint64(nvfs, "parentfromsnap",
&parent_fromsnap_guid));
(void) nvlist_lookup_uint64(nvfs, "origin", &originguid);
/*
* First find the stream's fs, so we can check for
* a different origin (due to "zfs promote")
*/
for (snapelem = nvlist_next_nvpair(snaps, NULL);
snapelem; snapelem = nvlist_next_nvpair(snaps, snapelem)) {
uint64_t thisguid;
VERIFY(0 == nvpair_value_uint64(snapelem, &thisguid));
stream_nvfs = fsavl_find(stream_avl, thisguid, NULL);
if (stream_nvfs != NULL)
break;
}
/* check for promote */
(void) nvlist_lookup_uint64(stream_nvfs, "origin",
&stream_originguid);
if (stream_nvfs && originguid != stream_originguid) {
switch (created_before(hdl, local_avl,
stream_originguid, originguid)) {
case 1: {
/* promote it! */
zfs_cmd_t zc = {"\0"};
2008-11-20 20:01:55 +00:00
nvlist_t *origin_nvfs;
char *origin_fsname;
if (flags->verbose)
2008-11-20 20:01:55 +00:00
(void) printf("promoting %s\n", fsname);
origin_nvfs = fsavl_find(local_avl, originguid,
NULL);
VERIFY(0 == nvlist_lookup_string(origin_nvfs,
"name", &origin_fsname));
(void) strlcpy(zc.zc_value, origin_fsname,
sizeof (zc.zc_value));
(void) strlcpy(zc.zc_name, fsname,
sizeof (zc.zc_name));
error = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc);
if (error == 0)
progress = B_TRUE;
break;
}
default:
break;
case -1:
fsavl_destroy(local_avl);
nvlist_free(local_nv);
return (-1);
}
/*
* We had/have the wrong origin, therefore our
* list of snapshots is wrong. Need to handle
* them on the next pass.
*/
needagain = B_TRUE;
continue;
}
for (snapelem = nvlist_next_nvpair(snaps, NULL);
snapelem; snapelem = nextsnapelem) {
uint64_t thisguid;
char *stream_snapname;
nvlist_t *found, *props;
2008-11-20 20:01:55 +00:00
nextsnapelem = nvlist_next_nvpair(snaps, snapelem);
VERIFY(0 == nvpair_value_uint64(snapelem, &thisguid));
found = fsavl_find(stream_avl, thisguid,
&stream_snapname);
/* check for delete */
if (found == NULL) {
char name[ZFS_MAX_DATASET_NAME_LEN];
2008-11-20 20:01:55 +00:00
if (!flags->force)
2008-11-20 20:01:55 +00:00
continue;
(void) snprintf(name, sizeof (name), "%s@%s",
fsname, nvpair_name(snapelem));
error = recv_destroy(hdl, name,
strlen(fsname)+1, newname, flags);
if (error)
needagain = B_TRUE;
else
progress = B_TRUE;
sprintf(guidname, "%llu",
(u_longlong_t)thisguid);
nvlist_add_boolean(deleted, guidname);
2008-11-20 20:01:55 +00:00
continue;
}
stream_nvfs = found;
if (0 == nvlist_lookup_nvlist(stream_nvfs, "snapprops",
&props) && 0 == nvlist_lookup_nvlist(props,
stream_snapname, &props)) {
zfs_cmd_t zc = {"\0"};
zc.zc_cookie = B_TRUE; /* received */
(void) snprintf(zc.zc_name, sizeof (zc.zc_name),
"%s@%s", fsname, nvpair_name(snapelem));
if (zcmd_write_src_nvlist(hdl, &zc,
props) == 0) {
(void) zfs_ioctl(hdl,
ZFS_IOC_SET_PROP, &zc);
zcmd_free_nvlists(&zc);
}
}
2008-11-20 20:01:55 +00:00
/* check for different snapname */
if (strcmp(nvpair_name(snapelem),
stream_snapname) != 0) {
char name[ZFS_MAX_DATASET_NAME_LEN];
char tryname[ZFS_MAX_DATASET_NAME_LEN];
2008-11-20 20:01:55 +00:00
(void) snprintf(name, sizeof (name), "%s@%s",
fsname, nvpair_name(snapelem));
(void) snprintf(tryname, sizeof (name), "%s@%s",
fsname, stream_snapname);
error = recv_rename(hdl, name, tryname,
strlen(fsname)+1, newname, flags);
if (error)
needagain = B_TRUE;
else
progress = B_TRUE;
}
if (strcmp(stream_snapname, fromsnap) == 0)
fromguid = thisguid;
}
/* check for delete */
if (stream_nvfs == NULL) {
if (!flags->force)
2008-11-20 20:01:55 +00:00
continue;
error = recv_destroy(hdl, fsname, strlen(tofs)+1,
newname, flags);
if (error)
needagain = B_TRUE;
else
progress = B_TRUE;
sprintf(guidname, "%llu",
(u_longlong_t) parent_fromsnap_guid);
nvlist_add_boolean(deleted, guidname);
2008-11-20 20:01:55 +00:00
continue;
}
if (fromguid == 0) {
if (flags->verbose) {
(void) printf("local fs %s does not have "
"fromsnap (%s in stream); must have "
"been deleted locally; ignoring\n",
fsname, fromsnap);
}
2008-11-20 20:01:55 +00:00
continue;
}
VERIFY(0 == nvlist_lookup_string(stream_nvfs,
"name", &stream_fsname));
VERIFY(0 == nvlist_lookup_uint64(stream_nvfs,
"parentfromsnap", &stream_parent_fromsnap_guid));
s1 = strrchr(fsname, '/');
s2 = strrchr(stream_fsname, '/');
/*
* Check if we're going to rename based on parent guid change
* and the current parent guid was also deleted. If it was then
* rename will fail and is likely unneeded, so avoid this and
* force an early retry to determine the new
* parent_fromsnap_guid.
*/
if (stream_parent_fromsnap_guid != 0 &&
parent_fromsnap_guid != 0 &&
stream_parent_fromsnap_guid != parent_fromsnap_guid) {
sprintf(guidname, "%llu",
(u_longlong_t) parent_fromsnap_guid);
if (nvlist_exists(deleted, guidname)) {
progress = B_TRUE;
needagain = B_TRUE;
goto doagain;
}
}
/*
* Check for rename. If the exact receive path is specified, it
* does not count as a rename, but we still need to check the
* datasets beneath it.
*/
2008-11-20 20:01:55 +00:00
if ((stream_parent_fromsnap_guid != 0 &&
parent_fromsnap_guid != 0 &&
2008-11-20 20:01:55 +00:00
stream_parent_fromsnap_guid != parent_fromsnap_guid) ||
((flags->isprefix || strcmp(tofs, fsname) != 0) &&
(s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) {
2008-11-20 20:01:55 +00:00
nvlist_t *parent;
char tryname[ZFS_MAX_DATASET_NAME_LEN];
2008-11-20 20:01:55 +00:00
parent = fsavl_find(local_avl,
stream_parent_fromsnap_guid, NULL);
/*
* NB: parent might not be found if we used the
* tosnap for stream_parent_fromsnap_guid,
* because the parent is a newly-created fs;
* we'll be able to rename it after we recv the
* new fs.
*/
if (parent != NULL) {
char *pname;
VERIFY(0 == nvlist_lookup_string(parent, "name",
&pname));
(void) snprintf(tryname, sizeof (tryname),
"%s%s", pname, strrchr(stream_fsname, '/'));
} else {
tryname[0] = '\0';
if (flags->verbose) {
2008-11-20 20:01:55 +00:00
(void) printf("local fs %s new parent "
"not found\n", fsname);
}
}
newname[0] = '\0';
2008-11-20 20:01:55 +00:00
error = recv_rename(hdl, fsname, tryname,
strlen(tofs)+1, newname, flags);
if (renamed != NULL && newname[0] != '\0') {
VERIFY(0 == nvlist_add_boolean(renamed,
newname));
}
2008-11-20 20:01:55 +00:00
if (error)
needagain = B_TRUE;
else
progress = B_TRUE;
}
}
doagain:
2008-11-20 20:01:55 +00:00
fsavl_destroy(local_avl);
nvlist_free(local_nv);
nvlist_free(deleted);
2008-11-20 20:01:55 +00:00
if (needagain && progress) {
/* do another pass to fix up temporary names */
if (flags->verbose)
2008-11-20 20:01:55 +00:00
(void) printf("another pass:\n");
goto again;
}
return (needagain);
}
static int
zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname,
recvflags_t *flags, dmu_replay_record_t *drr, zio_cksum_t *zc,
char **top_zfs, int cleanup_fd, uint64_t *action_handlep)
2008-11-20 20:01:55 +00:00
{
nvlist_t *stream_nv = NULL;
avl_tree_t *stream_avl = NULL;
char *fromsnap = NULL;
char *sendsnap = NULL;
char *cp;
char tofs[ZFS_MAX_DATASET_NAME_LEN];
char sendfs[ZFS_MAX_DATASET_NAME_LEN];
2008-11-20 20:01:55 +00:00
char errbuf[1024];
dmu_replay_record_t drre;
int error;
boolean_t anyerr = B_FALSE;
boolean_t softerr = B_FALSE;
boolean_t recursive;
2008-11-20 20:01:55 +00:00
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot receive"));
assert(drr->drr_type == DRR_BEGIN);
assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC);
assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) ==
DMU_COMPOUNDSTREAM);
2008-11-20 20:01:55 +00:00
/*
* Read in the nvlist from the stream.
*/
if (drr->drr_payloadlen != 0) {
error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen,
&stream_nv, flags->byteswap, zc);
2008-11-20 20:01:55 +00:00
if (error) {
error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
goto out;
}
}
recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") ==
ENOENT);
if (recursive && strchr(destname, '@')) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot specify snapshot name for multi-snapshot stream"));
error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
goto out;
}
2008-11-20 20:01:55 +00:00
/*
* Read in the end record and verify checksum.
*/
if (0 != (error = recv_read(hdl, fd, &drre, sizeof (drre),
flags->byteswap, NULL)))
2008-11-20 20:01:55 +00:00
goto out;
if (flags->byteswap) {
2008-11-20 20:01:55 +00:00
drre.drr_type = BSWAP_32(drre.drr_type);
drre.drr_u.drr_end.drr_checksum.zc_word[0] =
BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[0]);
drre.drr_u.drr_end.drr_checksum.zc_word[1] =
BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[1]);
drre.drr_u.drr_end.drr_checksum.zc_word[2] =
BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[2]);
drre.drr_u.drr_end.drr_checksum.zc_word[3] =
BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[3]);
}
if (drre.drr_type != DRR_END) {
error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
goto out;
}
if (!ZIO_CHECKSUM_EQUAL(drre.drr_u.drr_end.drr_checksum, *zc)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"incorrect header checksum"));
error = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
goto out;
}
(void) nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap);
if (drr->drr_payloadlen != 0) {
nvlist_t *stream_fss;
VERIFY(0 == nvlist_lookup_nvlist(stream_nv, "fss",
&stream_fss));
if ((stream_avl = fsavl_create(stream_fss)) == NULL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"couldn't allocate avl tree"));
error = zfs_error(hdl, EZFS_NOMEM, errbuf);
goto out;
}
if (fromsnap != NULL) {
nvlist_t *renamed = NULL;
nvpair_t *pair = NULL;
(void) strlcpy(tofs, destname, sizeof (tofs));
if (flags->isprefix) {
struct drr_begin *drrb = &drr->drr_u.drr_begin;
int i;
if (flags->istail) {
cp = strrchr(drrb->drr_toname, '/');
if (cp == NULL) {
(void) strlcat(tofs, "/",
sizeof (tofs));
i = 0;
} else {
i = (cp - drrb->drr_toname);
}
} else {
i = strcspn(drrb->drr_toname, "/@");
}
2008-11-20 20:01:55 +00:00
/* zfs_receive_one() will create_parents() */
(void) strlcat(tofs, &drrb->drr_toname[i],
sizeof (tofs));
2008-11-20 20:01:55 +00:00
*strchr(tofs, '@') = '\0';
}
if (recursive && !flags->dryrun && !flags->nomount) {
VERIFY(0 == nvlist_alloc(&renamed,
NV_UNIQUE_NAME, 0));
}
softerr = recv_incremental_replication(hdl, tofs, flags,
stream_nv, stream_avl, renamed);
/* Unmount renamed filesystems before receiving. */
while ((pair = nvlist_next_nvpair(renamed,
pair)) != NULL) {
zfs_handle_t *zhp;
prop_changelist_t *clp = NULL;
zhp = zfs_open(hdl, nvpair_name(pair),
ZFS_TYPE_FILESYSTEM);
if (zhp != NULL) {
clp = changelist_gather(zhp,
ZFS_PROP_MOUNTPOINT, 0, 0);
zfs_close(zhp);
if (clp != NULL) {
softerr |=
changelist_prefix(clp);
changelist_free(clp);
}
}
}
nvlist_free(renamed);
2008-11-20 20:01:55 +00:00
}
}
/*
* Get the fs specified by the first path in the stream (the top level
* specified by 'zfs send') and pass it to each invocation of
* zfs_receive_one().
*/
(void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname,
sizeof (sendfs));
if ((cp = strchr(sendfs, '@')) != NULL) {
*cp = '\0';
/*
* Find the "sendsnap", the final snapshot in a replication
* stream. zfs_receive_one() handles certain errors
* differently, depending on if the contained stream is the
* last one or not.
*/
sendsnap = (cp + 1);
}
2008-11-20 20:01:55 +00:00
/* Finally, receive each contained stream */
do {
/*
* we should figure out if it has a recoverable
* error, in which case do a recv_skip() and drive on.
* Note, if we fail due to already having this guid,
* zfs_receive_one() will take care of it (ie,
* recv_skip() and return 0).
*/
error = zfs_receive_impl(hdl, destname, NULL, flags, fd,
sendfs, stream_nv, stream_avl, top_zfs, cleanup_fd,
action_handlep, sendsnap);
2008-11-20 20:01:55 +00:00
if (error == ENODATA) {
error = 0;
break;
}
anyerr |= error;
} while (error == 0);
if (drr->drr_payloadlen != 0 && fromsnap != NULL) {
/*
* Now that we have the fs's they sent us, try the
* renames again.
*/
softerr = recv_incremental_replication(hdl, tofs, flags,
stream_nv, stream_avl, NULL);
2008-11-20 20:01:55 +00:00
}
out:
fsavl_destroy(stream_avl);
nvlist_free(stream_nv);
2008-11-20 20:01:55 +00:00
if (softerr)
error = -2;
if (anyerr)
error = -1;
return (error);
}
static void
trunc_prop_errs(int truncated)
{
ASSERT(truncated != 0);
if (truncated == 1)
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"1 more property could not be set\n"));
else
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"%d more properties could not be set\n"), truncated);
}
2008-11-20 20:01:55 +00:00
static int
recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap)
{
dmu_replay_record_t *drr;
Illumos 5027 - zfs large block support 5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #354
2014-11-03 20:15:08 +00:00
void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE);
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot receive:"));
2008-11-20 20:01:55 +00:00
/* XXX would be great to use lseek if possible... */
drr = buf;
while (recv_read(hdl, fd, drr, sizeof (dmu_replay_record_t),
byteswap, NULL) == 0) {
if (byteswap)
drr->drr_type = BSWAP_32(drr->drr_type);
switch (drr->drr_type) {
case DRR_BEGIN:
if (drr->drr_payloadlen != 0) {
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
(void) recv_read(hdl, fd, buf,
drr->drr_payloadlen, B_FALSE, NULL);
}
2008-11-20 20:01:55 +00:00
break;
case DRR_END:
free(buf);
return (0);
case DRR_OBJECT:
if (byteswap) {
drr->drr_u.drr_object.drr_bonuslen =
BSWAP_32(drr->drr_u.drr_object.
drr_bonuslen);
}
(void) recv_read(hdl, fd, buf,
P2ROUNDUP(drr->drr_u.drr_object.drr_bonuslen, 8),
B_FALSE, NULL);
break;
case DRR_WRITE:
if (byteswap) {
drr->drr_u.drr_write.drr_length =
BSWAP_64(drr->drr_u.drr_write.drr_length);
2008-11-20 20:01:55 +00:00
}
(void) recv_read(hdl, fd, buf,
drr->drr_u.drr_write.drr_length, B_FALSE, NULL);
break;
case DRR_SPILL:
if (byteswap) {
drr->drr_u.drr_spill.drr_length =
BSWAP_64(drr->drr_u.drr_spill.drr_length);
}
(void) recv_read(hdl, fd, buf,
drr->drr_u.drr_spill.drr_length, B_FALSE, NULL);
break;
case DRR_WRITE_EMBEDDED:
if (byteswap) {
drr->drr_u.drr_write_embedded.drr_psize =
BSWAP_32(drr->drr_u.drr_write_embedded.
drr_psize);
}
(void) recv_read(hdl, fd, buf,
P2ROUNDUP(drr->drr_u.drr_write_embedded.drr_psize,
8), B_FALSE, NULL);
break;
case DRR_WRITE_BYREF:
2008-11-20 20:01:55 +00:00
case DRR_FREEOBJECTS:
case DRR_FREE:
break;
default:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid record type"));
return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
2008-11-20 20:01:55 +00:00
}
}
free(buf);
return (-1);
}
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
static void
recv_ecksum_set_aux(libzfs_handle_t *hdl, const char *target_snap,
boolean_t resumable)
{
char target_fs[ZFS_MAX_DATASET_NAME_LEN];
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"checksum mismatch or incomplete stream"));
if (!resumable)
return;
(void) strlcpy(target_fs, target_snap, sizeof (target_fs));
*strchr(target_fs, '@') = '\0';
zfs_handle_t *zhp = zfs_open(hdl, target_fs,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
if (zhp == NULL)
return;
char token_buf[ZFS_MAXPROPLEN];
int error = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN,
token_buf, sizeof (token_buf),
NULL, NULL, 0, B_TRUE);
if (error == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"checksum mismatch or incomplete stream.\n"
"Partially received snapshot is saved.\n"
"A resuming stream can be generated on the sending "
"system by running:\n"
" zfs send -t %s"),
token_buf);
}
zfs_close(zhp);
}
2008-11-20 20:01:55 +00:00
/*
* Restores a backup of tosnap from the file descriptor specified by infd.
*/
static int
zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
const char *originsnap, recvflags_t *flags, dmu_replay_record_t *drr,
dmu_replay_record_t *drr_noswap, const char *sendfs, nvlist_t *stream_nv,
avl_tree_t *stream_avl, char **top_zfs, int cleanup_fd,
uint64_t *action_handlep, const char *finalsnap)
2008-11-20 20:01:55 +00:00
{
time_t begin_time;
int ioctl_err, ioctl_errno, err;
2008-11-20 20:01:55 +00:00
char *cp;
struct drr_begin *drrb = &drr->drr_u.drr_begin;
char errbuf[1024];
const char *chopprefix;
2008-11-20 20:01:55 +00:00
boolean_t newfs = B_FALSE;
boolean_t stream_wantsnewfs;
boolean_t newprops = B_FALSE;
uint64_t read_bytes = 0;
uint64_t errflags = 0;
2008-11-20 20:01:55 +00:00
uint64_t parent_snapguid = 0;
prop_changelist_t *clp = NULL;
nvlist_t *snapprops_nvlist = NULL;
zprop_errflags_t prop_errflags;
nvlist_t *prop_errors = NULL;
boolean_t recursive;
char *snapname = NULL;
char destsnap[MAXPATHLEN * 2];
char origin[MAXNAMELEN];
char name[MAXPATHLEN];
nvlist_t *props = NULL;
2008-11-20 20:01:55 +00:00
begin_time = time(NULL);
bzero(origin, MAXNAMELEN);
2008-11-20 20:01:55 +00:00
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot receive"));
recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") ==
ENOENT);
2008-11-20 20:01:55 +00:00
if (stream_avl != NULL) {
nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid,
&snapname);
2008-11-20 20:01:55 +00:00
(void) nvlist_lookup_uint64(fs, "parentfromsnap",
&parent_snapguid);
err = nvlist_lookup_nvlist(fs, "props", &props);
if (err) {
2008-11-20 20:01:55 +00:00
VERIFY(0 == nvlist_alloc(&props, NV_UNIQUE_NAME, 0));
newprops = B_TRUE;
}
2008-11-20 20:01:55 +00:00
if (flags->canmountoff) {
2008-11-20 20:01:55 +00:00
VERIFY(0 == nvlist_add_uint64(props,
zfs_prop_to_name(ZFS_PROP_CANMOUNT), 0));
}
}
cp = NULL;
2008-11-20 20:01:55 +00:00
/*
* Determine how much of the snapshot name stored in the stream
* we are going to tack on to the name they specified on the
* command line, and how much we are going to chop off.
*
* If they specified a snapshot, chop the entire name stored in
* the stream.
*/
if (flags->istail) {
/*
* A filesystem was specified with -e. We want to tack on only
* the tail of the sent snapshot path.
*/
if (strchr(tosnap, '@')) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
"argument - snapshot not allowed with -e"));
err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
goto out;
}
chopprefix = strrchr(sendfs, '/');
if (chopprefix == NULL) {
/*
* The tail is the poolname, so we need to
* prepend a path separator.
*/
int len = strlen(drrb->drr_toname);
cp = malloc(len + 2);
cp[0] = '/';
(void) strcpy(&cp[1], drrb->drr_toname);
chopprefix = cp;
} else {
chopprefix = drrb->drr_toname + (chopprefix - sendfs);
}
} else if (flags->isprefix) {
2008-11-20 20:01:55 +00:00
/*
* A filesystem was specified with -d. We want to tack on
* everything but the first element of the sent snapshot path
* (all but the pool name).
2008-11-20 20:01:55 +00:00
*/
if (strchr(tosnap, '@')) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
"argument - snapshot not allowed with -d"));
err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
chopprefix = strchr(drrb->drr_toname, '/');
if (chopprefix == NULL)
chopprefix = strchr(drrb->drr_toname, '@');
2008-11-20 20:01:55 +00:00
} else if (strchr(tosnap, '@') == NULL) {
/*
* If a filesystem was specified without -d or -e, we want to
* tack on everything after the fs specified by 'zfs send'.
2008-11-20 20:01:55 +00:00
*/
chopprefix = drrb->drr_toname + strlen(sendfs);
} else {
/* A snapshot was specified as an exact path (no -d or -e). */
if (recursive) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot specify snapshot name for multi-snapshot "
"stream"));
err = zfs_error(hdl, EZFS_BADSTREAM, errbuf);
goto out;
}
chopprefix = drrb->drr_toname + strlen(drrb->drr_toname);
2008-11-20 20:01:55 +00:00
}
ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname);
ASSERT(chopprefix > drrb->drr_toname);
ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname));
ASSERT(chopprefix[0] == '/' || chopprefix[0] == '@' ||
chopprefix[0] == '\0');
2008-11-20 20:01:55 +00:00
/*
* Determine name of destination snapshot.
2008-11-20 20:01:55 +00:00
*/
(void) strcpy(destsnap, tosnap);
(void) strlcat(destsnap, chopprefix, sizeof (destsnap));
free(cp);
if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) {
err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
/*
* Determine the name of the origin snapshot.
2008-11-20 20:01:55 +00:00
*/
if (drrb->drr_flags & DRR_FLAG_CLONE) {
if (guid_to_name(hdl, destsnap,
drrb->drr_fromguid, B_FALSE, origin) != 0) {
2008-11-20 20:01:55 +00:00
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"local origin for clone %s does not exist"),
destsnap);
err = zfs_error(hdl, EZFS_NOENT, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
if (flags->verbose)
(void) printf("found clone origin %s\n", origin);
} else if (originsnap) {
(void) strncpy(origin, originsnap, sizeof (origin));
if (flags->verbose)
(void) printf("using provided clone origin %s\n",
origin);
2008-11-20 20:01:55 +00:00
}
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
boolean_t resuming = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) &
DMU_BACKUP_FEATURE_RESUMING;
stream_wantsnewfs = (drrb->drr_fromguid == 0 ||
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
(drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && !resuming;
2008-11-20 20:01:55 +00:00
if (stream_wantsnewfs) {
/*
* if the parent fs does not exist, look for it based on
* the parent snap GUID
*/
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot receive new filesystem stream"));
(void) strcpy(name, destsnap);
cp = strrchr(name, '/');
2008-11-20 20:01:55 +00:00
if (cp)
*cp = '\0';
if (cp &&
!zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) {
char suffix[ZFS_MAX_DATASET_NAME_LEN];
(void) strcpy(suffix, strrchr(destsnap, '/'));
if (guid_to_name(hdl, name, parent_snapguid,
B_FALSE, destsnap) == 0) {
*strchr(destsnap, '@') = '\0';
(void) strcat(destsnap, suffix);
2008-11-20 20:01:55 +00:00
}
}
} else {
/*
* if the fs does not exist, look for it based on the
* fromsnap GUID
*/
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot receive incremental stream"));
(void) strcpy(name, destsnap);
*strchr(name, '@') = '\0';
2008-11-20 20:01:55 +00:00
/*
* If the exact receive path was specified and this is the
* topmost path in the stream, then if the fs does not exist we
* should look no further.
*/
if ((flags->isprefix || (*(chopprefix = drrb->drr_toname +
strlen(sendfs)) != '\0' && *chopprefix != '@')) &&
!zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) {
char snap[ZFS_MAX_DATASET_NAME_LEN];
(void) strcpy(snap, strchr(destsnap, '@'));
if (guid_to_name(hdl, name, drrb->drr_fromguid,
B_FALSE, destsnap) == 0) {
*strchr(destsnap, '@') = '\0';
(void) strcat(destsnap, snap);
2008-11-20 20:01:55 +00:00
}
}
}
(void) strcpy(name, destsnap);
*strchr(name, '@') = '\0';
2008-11-20 20:01:55 +00:00
if (zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) {
zfs_cmd_t zc = {"\0"};
2008-11-20 20:01:55 +00:00
zfs_handle_t *zhp;
(void) strcpy(zc.zc_name, name);
2008-11-20 20:01:55 +00:00
/*
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
* Destination fs exists. It must be one of these cases:
* - an incremental send stream
* - the stream specifies a new fs (full stream or clone)
* and they want us to blow away the existing fs (and
* have therefore specified -F and removed any snapshots)
* - we are resuming a failed receive.
2008-11-20 20:01:55 +00:00
*/
if (stream_wantsnewfs) {
if (!flags->force) {
2008-11-20 20:01:55 +00:00
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination '%s' exists\n"
"must specify -F to overwrite it"), name);
err = zfs_error(hdl, EZFS_EXISTS, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
if (ioctl(hdl->libzfs_fd, ZFS_IOC_SNAPSHOT_LIST_NEXT,
&zc) == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination has snapshots (eg. %s)\n"
"must destroy them to overwrite it"),
name);
err = zfs_error(hdl, EZFS_EXISTS, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
}
if ((zhp = zfs_open(hdl, name,
2008-11-20 20:01:55 +00:00
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) == NULL) {
err = -1;
goto out;
2008-11-20 20:01:55 +00:00
}
if (stream_wantsnewfs &&
zhp->zfs_dmustats.dds_origin[0]) {
zfs_close(zhp);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination '%s' is a clone\n"
"must destroy it to overwrite it"), name);
err = zfs_error(hdl, EZFS_EXISTS, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
if (!flags->dryrun && zhp->zfs_type == ZFS_TYPE_FILESYSTEM &&
2008-11-20 20:01:55 +00:00
stream_wantsnewfs) {
/* We can't do online recv in this case */
clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 0);
2008-11-20 20:01:55 +00:00
if (clp == NULL) {
2009-08-18 18:43:27 +00:00
zfs_close(zhp);
err = -1;
goto out;
2008-11-20 20:01:55 +00:00
}
if (changelist_prefix(clp) != 0) {
changelist_free(clp);
2009-08-18 18:43:27 +00:00
zfs_close(zhp);
err = -1;
goto out;
2008-11-20 20:01:55 +00:00
}
}
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
/*
* If we are resuming a newfs, set newfs here so that we will
* mount it if the recv succeeds this time. We can tell
* that it was a newfs on the first recv because the fs
* itself will be inconsistent (if the fs existed when we
* did the first recv, we would have received it into
* .../%recv).
*/
if (resuming && zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT))
newfs = B_TRUE;
2008-11-20 20:01:55 +00:00
zfs_close(zhp);
} else {
/*
* Destination filesystem does not exist. Therefore we better
* be creating a new filesystem (either from a full backup, or
* a clone). It would therefore be invalid if the user
* specified only the pool name (i.e. if the destination name
* contained no slash character).
*/
cp = strrchr(name, '/');
if (!stream_wantsnewfs || cp == NULL) {
2008-11-20 20:01:55 +00:00
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination '%s' does not exist"), name);
err = zfs_error(hdl, EZFS_NOENT, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
/*
* Trim off the final dataset component so we perform the
* recvbackup ioctl to the filesystems's parent.
*/
*cp = '\0';
if (flags->isprefix && !flags->istail && !flags->dryrun &&
create_parents(hdl, destsnap, strlen(tosnap)) != 0) {
err = zfs_error(hdl, EZFS_BADRESTORE, errbuf);
goto out;
2008-11-20 20:01:55 +00:00
}
newfs = B_TRUE;
}
if (flags->verbose) {
2008-11-20 20:01:55 +00:00
(void) printf("%s %s stream of %s into %s\n",
flags->dryrun ? "would receive" : "receiving",
2008-11-20 20:01:55 +00:00
drrb->drr_fromguid ? "incremental" : "full",
drrb->drr_toname, destsnap);
2008-11-20 20:01:55 +00:00
(void) fflush(stdout);
}
if (flags->dryrun) {
err = recv_skip(hdl, infd, flags->byteswap);
goto out;
2008-11-20 20:01:55 +00:00
}
err = ioctl_err = lzc_receive_one(destsnap, props, origin,
flags->force, flags->resumable, infd, drr_noswap, cleanup_fd,
&read_bytes, &errflags, action_handlep, &prop_errors);
ioctl_errno = ioctl_err;
prop_errflags = errflags;
if (err == 0) {
nvpair_t *prop_err = NULL;
while ((prop_err = nvlist_next_nvpair(prop_errors,
prop_err)) != NULL) {
char tbuf[1024];
zfs_prop_t prop;
int intval;
prop = zfs_name_to_prop(nvpair_name(prop_err));
(void) nvpair_value_int32(prop_err, &intval);
if (strcmp(nvpair_name(prop_err),
ZPROP_N_MORE_ERRORS) == 0) {
trunc_prop_errs(intval);
break;
} else if (snapname == NULL || finalsnap == NULL ||
strcmp(finalsnap, snapname) == 0 ||
strcmp(nvpair_name(prop_err),
zfs_prop_to_name(ZFS_PROP_REFQUOTA)) != 0) {
/*
* Skip the special case of, for example,
* "refquota", errors on intermediate
* snapshots leading up to a final one.
* That's why we have all of the checks above.
*
* See zfs_ioctl.c's extract_delay_props() for
* a list of props which can fail on
* intermediate snapshots, but shouldn't
* affect the overall receive.
*/
(void) snprintf(tbuf, sizeof (tbuf),
dgettext(TEXT_DOMAIN,
"cannot receive %s property on %s"),
nvpair_name(prop_err), name);
zfs_setprop_error(hdl, prop, intval, tbuf);
}
}
}
if (err == 0 && snapprops_nvlist) {
zfs_cmd_t zc = {"\0"};
(void) strcpy(zc.zc_name, destsnap);
zc.zc_cookie = B_TRUE; /* received */
if (zcmd_write_src_nvlist(hdl, &zc, snapprops_nvlist) == 0) {
(void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc);
zcmd_free_nvlists(&zc);
}
}
if (err && (ioctl_errno == ENOENT || ioctl_errno == EEXIST)) {
2008-11-20 20:01:55 +00:00
/*
* It may be that this snapshot already exists,
* in which case we want to consume & ignore it
* rather than failing.
*/
avl_tree_t *local_avl;
nvlist_t *local_nv, *fs;
cp = strchr(destsnap, '@');
2008-11-20 20:01:55 +00:00
/*
* XXX Do this faster by just iterating over snaps in
* this fs. Also if zc_value does not exist, we will
* get a strange "does not exist" error message.
*/
*cp = '\0';
if (gather_nvlist(hdl, destsnap, NULL, NULL, B_FALSE,
2008-11-20 20:01:55 +00:00
&local_nv, &local_avl) == 0) {
*cp = '@';
fs = fsavl_find(local_avl, drrb->drr_toguid, NULL);
fsavl_destroy(local_avl);
nvlist_free(local_nv);
if (fs != NULL) {
if (flags->verbose) {
2008-11-20 20:01:55 +00:00
(void) printf("snap %s already exists; "
"ignoring\n", destsnap);
2008-11-20 20:01:55 +00:00
}
err = ioctl_err = recv_skip(hdl, infd,
flags->byteswap);
2008-11-20 20:01:55 +00:00
}
}
*cp = '@';
}
if (ioctl_err != 0) {
switch (ioctl_errno) {
case ENODEV:
cp = strchr(destsnap, '@');
2008-11-20 20:01:55 +00:00
*cp = '\0';
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"most recent snapshot of %s does not\n"
"match incremental source"), destsnap);
2008-11-20 20:01:55 +00:00
(void) zfs_error(hdl, EZFS_BADRESTORE, errbuf);
*cp = '@';
break;
case ETXTBSY:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination %s has been modified\n"
"since most recent snapshot"), name);
2008-11-20 20:01:55 +00:00
(void) zfs_error(hdl, EZFS_BADRESTORE, errbuf);
break;
case EEXIST:
cp = strchr(destsnap, '@');
2008-11-20 20:01:55 +00:00
if (newfs) {
/* it's the containing fs that exists */
*cp = '\0';
}
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination already exists"));
(void) zfs_error_fmt(hdl, EZFS_EXISTS,
dgettext(TEXT_DOMAIN, "cannot restore to %s"),
destsnap);
2008-11-20 20:01:55 +00:00
*cp = '@';
break;
case EINVAL:
if (flags->resumable)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"kernel modules must be upgraded to "
"receive this stream."));
2008-11-20 20:01:55 +00:00
(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
break;
case ECKSUM:
recv_ecksum_set_aux(hdl, destsnap, flags->resumable);
2008-11-20 20:01:55 +00:00
(void) zfs_error(hdl, EZFS_BADSTREAM, errbuf);
break;
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded to receive this stream."));
(void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
break;
case EDQUOT:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"destination %s space quota exceeded"), name);
(void) zfs_error(hdl, EZFS_NOSPC, errbuf);
break;
2008-11-20 20:01:55 +00:00
default:
(void) zfs_standard_error(hdl, ioctl_errno, errbuf);
}
}
/*
* Mount the target filesystem (if created). Also mount any
* children of the target filesystem if we did a replication
* receive (indicated by stream_avl being non-NULL).
2008-11-20 20:01:55 +00:00
*/
cp = strchr(destsnap, '@');
2008-11-20 20:01:55 +00:00
if (cp && (ioctl_err == 0 || !newfs)) {
zfs_handle_t *h;
*cp = '\0';
h = zfs_open(hdl, destsnap,
2008-11-20 20:01:55 +00:00
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
if (h != NULL) {
if (h->zfs_type == ZFS_TYPE_VOLUME) {
*cp = '@';
2009-08-18 18:43:27 +00:00
} else if (newfs || stream_avl) {
/*
* Track the first/top of hierarchy fs,
* for mounting and sharing later.
*/
if (top_zfs && *top_zfs == NULL)
*top_zfs = zfs_strdup(hdl, destsnap);
2008-11-20 20:01:55 +00:00
}
zfs_close(h);
}
*cp = '@';
2008-11-20 20:01:55 +00:00
}
if (clp) {
err |= changelist_postfix(clp);
changelist_free(clp);
}
if (prop_errflags & ZPROP_ERR_NOCLEAR) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: "
"failed to clear unreceived properties on %s"), name);
(void) fprintf(stderr, "\n");
}
if (prop_errflags & ZPROP_ERR_NORESTORE) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: "
"failed to restore original properties on %s"), name);
(void) fprintf(stderr, "\n");
}
if (err || ioctl_err) {
err = -1;
goto out;
}
if (flags->verbose) {
2008-11-20 20:01:55 +00:00
char buf1[64];
char buf2[64];
uint64_t bytes = read_bytes;
2008-11-20 20:01:55 +00:00
time_t delta = time(NULL) - begin_time;
if (delta == 0)
delta = 1;
zfs_nicenum(bytes, buf1, sizeof (buf1));
zfs_nicenum(bytes/delta, buf2, sizeof (buf1));
(void) printf("received %sB stream in %lu seconds (%sB/sec)\n",
buf1, delta, buf2);
}
err = 0;
out:
if (prop_errors != NULL)
nvlist_free(prop_errors);
if (newprops)
nvlist_free(props);
return (err);
2008-11-20 20:01:55 +00:00
}
static int
zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap,
const char *originsnap, recvflags_t *flags, int infd, const char *sendfs,
nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs, int cleanup_fd,
uint64_t *action_handlep, const char *finalsnap)
2008-11-20 20:01:55 +00:00
{
int err;
dmu_replay_record_t drr, drr_noswap;
struct drr_begin *drrb = &drr.drr_u.drr_begin;
char errbuf[1024];
zio_cksum_t zcksum = { { 0 } };
uint64_t featureflags;
int hdrtype;
2008-11-20 20:01:55 +00:00
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot receive"));
if (flags->isprefix &&
2008-11-20 20:01:55 +00:00
!zfs_dataset_exists(hdl, tosnap, ZFS_TYPE_DATASET)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified fs "
"(%s) does not exist"), tosnap);
return (zfs_error(hdl, EZFS_NOENT, errbuf));
}
if (originsnap &&
!zfs_dataset_exists(hdl, originsnap, ZFS_TYPE_DATASET)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified origin fs "
"(%s) does not exist"), originsnap);
return (zfs_error(hdl, EZFS_NOENT, errbuf));
}
2008-11-20 20:01:55 +00:00
/* read in the BEGIN record */
if (0 != (err = recv_read(hdl, infd, &drr, sizeof (drr), B_FALSE,
&zcksum)))
return (err);
if (drr.drr_type == DRR_END || drr.drr_type == BSWAP_32(DRR_END)) {
/* It's the double end record at the end of a package */
return (ENODATA);
}
/* the kernel needs the non-byteswapped begin record */
drr_noswap = drr;
flags->byteswap = B_FALSE;
2008-11-20 20:01:55 +00:00
if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) {
/*
* We computed the checksum in the wrong byteorder in
* recv_read() above; do it again correctly.
*/
bzero(&zcksum, sizeof (zio_cksum_t));
fletcher_4_incremental_byteswap(&drr, sizeof (drr), &zcksum);
flags->byteswap = B_TRUE;
2008-11-20 20:01:55 +00:00
drr.drr_type = BSWAP_32(drr.drr_type);
drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen);
drrb->drr_magic = BSWAP_64(drrb->drr_magic);
drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo);
2008-11-20 20:01:55 +00:00
drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time);
drrb->drr_type = BSWAP_32(drrb->drr_type);
drrb->drr_flags = BSWAP_32(drrb->drr_flags);
drrb->drr_toguid = BSWAP_64(drrb->drr_toguid);
drrb->drr_fromguid = BSWAP_64(drrb->drr_fromguid);
}
if (drrb->drr_magic != DMU_BACKUP_MAGIC || drr.drr_type != DRR_BEGIN) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
"stream (bad magic number)"));
return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
}
featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo);
hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo);
if (!DMU_STREAM_SUPPORTED(featureflags) ||
(hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"stream has unsupported feature, feature flags = %lx"),
featureflags);
return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
}
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if (strchr(drrb->drr_toname, '@') == NULL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid "
"stream (bad snapshot name)"));
return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
}
if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) {
char nonpackage_sendfs[ZFS_MAX_DATASET_NAME_LEN];
if (sendfs == NULL) {
/*
* We were not called from zfs_receive_package(). Get
* the fs specified by 'zfs send'.
*/
char *cp;
(void) strlcpy(nonpackage_sendfs,
drr.drr_u.drr_begin.drr_toname,
sizeof (nonpackage_sendfs));
if ((cp = strchr(nonpackage_sendfs, '@')) != NULL)
*cp = '\0';
sendfs = nonpackage_sendfs;
VERIFY(finalsnap == NULL);
}
return (zfs_receive_one(hdl, infd, tosnap, originsnap, flags,
&drr, &drr_noswap, sendfs, stream_nv, stream_avl, top_zfs,
cleanup_fd, action_handlep, finalsnap));
} else {
assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) ==
DMU_COMPOUNDSTREAM);
return (zfs_receive_package(hdl, infd, tosnap, flags, &drr,
&zcksum, top_zfs, cleanup_fd, action_handlep));
2008-11-20 20:01:55 +00:00
}
}
/*
* Restores a backup of tosnap from the file descriptor specified by infd.
* Return 0 on total success, -2 if some things couldn't be
* destroyed/renamed/promoted, -1 if some things couldn't be received.
OpenZFS 2605, 6980, 6902 2605 want to resume interrupted zfs send Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed by: Xin Li <delphij@freebsd.org> Reviewed by: Arne Jansen <sensille@gmx.net> Approved by: Dan McDonald <danmcd@omniti.com> Ported-by: kernelOfTruth <kerneloftruth@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
2016-01-06 21:22:48 +00:00
* (-1 will override -2, if -1 and the resumable flag was specified the
* transfer can be resumed if the sending side supports it).
*/
int
zfs_receive(libzfs_handle_t *hdl, const char *tosnap, nvlist_t *props,
recvflags_t *flags, int infd, avl_tree_t *stream_avl)
{
char *top_zfs = NULL;
int err;
int cleanup_fd;
uint64_t action_handle = 0;
struct stat sb;
char *originsnap = NULL;
/*
* The only way fstat can fail is if we do not have a valid file
* descriptor.
*/
if (fstat(infd, &sb) == -1) {
perror("fstat");
return (-2);
}
#ifdef __linux__
#ifndef F_SETPIPE_SZ
#define F_SETPIPE_SZ (F_SETLEASE + 7)
#endif /* F_SETPIPE_SZ */
#ifndef F_GETPIPE_SZ
#define F_GETPIPE_SZ (F_GETLEASE + 7)
#endif /* F_GETPIPE_SZ */
/*
* It is not uncommon for gigabytes to be processed in zfs receive.
* Speculatively increase the buffer size via Linux-specific fcntl()
* call.
*/
if (S_ISFIFO(sb.st_mode)) {
FILE *procf = fopen("/proc/sys/fs/pipe-max-size", "r");
if (procf != NULL) {
unsigned long max_psize;
long cur_psize;
if (fscanf(procf, "%lu", &max_psize) > 0) {
cur_psize = fcntl(infd, F_GETPIPE_SZ);
if (cur_psize > 0 &&
max_psize > (unsigned long) cur_psize)
(void) fcntl(infd, F_SETPIPE_SZ,
max_psize);
}
fclose(procf);
}
}
#endif /* __linux__ */
if (props) {
err = nvlist_lookup_string(props, "origin", &originsnap);
if (err && err != ENOENT)
return (err);
}
cleanup_fd = open(ZFS_DEV, O_RDWR);
VERIFY(cleanup_fd >= 0);
err = zfs_receive_impl(hdl, tosnap, originsnap, flags, infd, NULL, NULL,
stream_avl, &top_zfs, cleanup_fd, &action_handle, NULL);
VERIFY(0 == close(cleanup_fd));
if (err == 0 && !flags->nomount && top_zfs) {
Build user-space with different gcc optimization levels This fix resolves warnings reported during compiling of user-space libraries with different gcc optimization levels. Tested with gcc versions: 4.9.2 (Debian), and 6.1.1 (Fedora). The patch enables use of following opt levels: O0, O1, O2, O3, Og, Os, Ofast. List of warnings: [GCC 4.9.2 -Os] libzfs_sendrecv.c:3726:26: error: 'clp' may be used uninitialized in this function [-Werror=maybe-uninitialized] [GCC 4.9.2 -Og] fs_fletcher.c:323:26: error: 'idx' may be used uninitialized in this function [-Werror=maybe-uninitialized] dsl_dataset.c:1290:12: error: 'atp' may be used uninitialized in this function [-Werror=maybe-uninitialized] [GCC 4.9.2 -Ofast] u8_textprep.c:1310:9: error: 'tc[3ul]' may be used uninitialized in this function [-Werror=maybe-uninitialized] u8_textprep.c:177:23: error: 'u8t[0ul]' may be used uninitialized in this function [-Werror=maybe-uninitialized] dsl_dataset.c:2089:37: error: ‘hds’ may be used uninitialized in this function [-Werror=maybe-uninitialized] dsl_dataset.c:3216:2: error: ‘ds’ may be used uninitialized in this function [-Werror=maybe-uninitialized] dsl_dataset.c:1591:2: error: ‘ds’ may be used uninitialized in this function [-Werror=maybe-uninitialized] dsl_dataset.c:3341:2: error: ‘ds’ may be used uninitialized in this function [-Werror=maybe-uninitialized] vdev_raidz.c:1153:8: error: 'dcount[2]' may be used uninitialized in this function [-Werror=maybe-uninitialized] vdev_raidz.c:1167:17: error: 'dst[2]' may be used uninitialized in this function [-Werror=maybe-uninitialized] kernel.c:1005:2: error: ‘resid’ may be used uninitialized in this function [-Werror=maybe-uninitialized] libzfs_dataset.c:2826:8: error: ‘val’ may be used uninitialized in this function [-Werror=maybe-uninitialized] libzfs_dataset.c:3056:35: error: ‘val’ may be used uninitialized in this function [-Werror=maybe-uninitialized] libzfs_dataset.c:1584:13: error: ‘val’ may be used uninitialized in this function [-Werror=maybe-uninitialized] libzfs_dataset.c:3056:35: error: ‘val’ may be used uninitialized in this function [-Werror=maybe-uninitialized] libzfs_dataset.c:1792:66: error: ‘val’ may be used uninitialized in this function [-Werror=maybe-uninitialized] libzfs_dataset.c:3986:35: error: ‘val’ may be used uninitialized in this function [-Werror=maybe-uninitialized] [GCC 6.1.1] Resolved in PR #4907 Signed-off-by: Gvozden Neskovic <neskovic@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #4937
2016-07-26 19:08:51 +00:00
zfs_handle_t *zhp = NULL;
prop_changelist_t *clp = NULL;
zhp = zfs_open(hdl, top_zfs, ZFS_TYPE_FILESYSTEM);
if (zhp != NULL) {
clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT,
CL_GATHER_MOUNT_ALWAYS, 0);
zfs_close(zhp);
if (clp != NULL) {
/* mount and share received datasets */
err = changelist_postfix(clp);
changelist_free(clp);
}
}
if (zhp == NULL || clp == NULL || err)
err = -1;
}
if (top_zfs)
free(top_zfs);
return (err);
}