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mirror_zfs/cmd/zstreamdump/zstreamdump.c
Paul Dagnelie 30af21b025 Implement Redacted Send/Receive 
Redacted send/receive allows users to send subsets of their data to 
a target system. One possible use case for this feature is to not 
transmit sensitive information to a data warehousing, test/dev, or 
analytics environment. Another is to save space by not replicating 
unimportant data within a given dataset, for example in backup tools 
like zrepl.

Redacted send/receive is a three-stage process. First, a clone (or 
clones) is made of the snapshot to be sent to the target. In this 
clone (or clones), all unnecessary or unwanted data is removed or
modified. This clone is then snapshotted to create the "redaction 
snapshot" (or snapshots). Second, the new zfs redact command is used 
to create a redaction bookmark. The redaction bookmark stores the 
list of blocks in a snapshot that were modified by the redaction 
snapshot(s). Finally, the redaction bookmark is passed as a parameter 
to zfs send. When sending to the snapshot that was redacted, the
redaction bookmark is used to filter out blocks that contain sensitive 
or unwanted information, and those blocks are not included in the send 
stream.  When sending from the redaction bookmark, the blocks it 
contains are considered as candidate blocks in addition to those 
blocks in the destination snapshot that were modified since the 
creation_txg of the redaction bookmark.  This step is necessary to 
allow the target to rehydrate data in the case where some blocks are 
accidentally or unnecessarily modified in the redaction snapshot.

The changes to bookmarks to enable fast space estimation involve 
adding deadlists to bookmarks. There is also logic to manage the 
life cycles of these deadlists.

The new size estimation process operates in cases where previously 
an accurate estimate could not be provided. In those cases, a send 
is performed where no data blocks are read, reducing the runtime 
significantly and providing a byte-accurate size estimate.

Reviewed-by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed-by: Matt Ahrens <mahrens@delphix.com>
Reviewed-by: Prashanth Sreenivasa <pks@delphix.com>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Chris Williamson <chris.williamson@delphix.com>
Reviewed-by: Pavel Zhakarov <pavel.zakharov@delphix.com>
Reviewed-by: Sebastien Roy <sebastien.roy@delphix.com>
Reviewed-by: Prakash Surya <prakash.surya@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #7958
2019-06-19 09:48:12 -07:00

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/*
* 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 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Portions Copyright 2012 Martin Matuska <martin@matuska.org>
*/
/*
* Copyright (c) 2013, 2015 by Delphix. All rights reserved.
*/
#include <ctype.h>
#include <libnvpair.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <stddef.h>
#include <sys/dmu.h>
#include <sys/zfs_ioctl.h>
#include <sys/zio.h>
#include <zfs_fletcher.h>
/*
* If dump mode is enabled, the number of bytes to print per line
*/
#define BYTES_PER_LINE 16
/*
* If dump mode is enabled, the number of bytes to group together, separated
* by newlines or spaces
*/
#define DUMP_GROUPING 4
uint64_t total_write_size = 0;
uint64_t total_stream_len = 0;
FILE *send_stream = 0;
boolean_t do_byteswap = B_FALSE;
boolean_t do_cksum = B_TRUE;
static void
usage(void)
{
(void) fprintf(stderr, "usage: zstreamdump [-v] [-C] [-d] < file\n");
(void) fprintf(stderr, "\t -v -- verbose\n");
(void) fprintf(stderr, "\t -C -- suppress checksum verification\n");
(void) fprintf(stderr, "\t -d -- dump contents of blocks modified, "
"implies verbose\n");
exit(1);
}
static void *
safe_malloc(size_t size)
{
void *rv = malloc(size);
if (rv == NULL) {
(void) fprintf(stderr, "ERROR; failed to allocate %zu bytes\n",
size);
abort();
}
return (rv);
}
/*
* ssread - send stream read.
*
* Read while computing incremental checksum
*/
static size_t
ssread(void *buf, size_t len, zio_cksum_t *cksum)
{
size_t outlen;
if ((outlen = fread(buf, len, 1, send_stream)) == 0)
return (0);
if (do_cksum) {
if (do_byteswap)
fletcher_4_incremental_byteswap(buf, len, cksum);
else
fletcher_4_incremental_native(buf, len, cksum);
}
total_stream_len += len;
return (outlen);
}
static size_t
read_hdr(dmu_replay_record_t *drr, zio_cksum_t *cksum)
{
ASSERT3U(offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum),
==, sizeof (dmu_replay_record_t) - sizeof (zio_cksum_t));
size_t r = ssread(drr, sizeof (*drr) - sizeof (zio_cksum_t), cksum);
if (r == 0)
return (0);
zio_cksum_t saved_cksum = *cksum;
r = ssread(&drr->drr_u.drr_checksum.drr_checksum,
sizeof (zio_cksum_t), cksum);
if (r == 0)
return (0);
if (!ZIO_CHECKSUM_IS_ZERO(&drr->drr_u.drr_checksum.drr_checksum) &&
!ZIO_CHECKSUM_EQUAL(saved_cksum,
drr->drr_u.drr_checksum.drr_checksum)) {
fprintf(stderr, "invalid checksum\n");
(void) printf("Incorrect checksum in record header.\n");
(void) printf("Expected checksum = %llx/%llx/%llx/%llx\n",
(longlong_t)saved_cksum.zc_word[0],
(longlong_t)saved_cksum.zc_word[1],
(longlong_t)saved_cksum.zc_word[2],
(longlong_t)saved_cksum.zc_word[3]);
return (0);
}
return (sizeof (*drr));
}
/*
* Print part of a block in ASCII characters
*/
static void
print_ascii_block(char *subbuf, int length)
{
int i;
for (i = 0; i < length; i++) {
char char_print = isprint(subbuf[i]) ? subbuf[i] : '.';
if (i != 0 && i % DUMP_GROUPING == 0) {
(void) printf(" ");
}
(void) printf("%c", char_print);
}
(void) printf("\n");
}
/*
* print_block - Dump the contents of a modified block to STDOUT
*
* Assume that buf has capacity evenly divisible by BYTES_PER_LINE
*/
static void
print_block(char *buf, int length)
{
int i;
/*
* Start printing ASCII characters at a constant offset, after
* the hex prints. Leave 3 characters per byte on a line (2 digit
* hex number plus 1 space) plus spaces between characters and
* groupings.
*/
int ascii_start = BYTES_PER_LINE * 3 +
BYTES_PER_LINE / DUMP_GROUPING + 2;
for (i = 0; i < length; i += BYTES_PER_LINE) {
int j;
int this_line_length = MIN(BYTES_PER_LINE, length - i);
int print_offset = 0;
for (j = 0; j < this_line_length; j++) {
int buf_offset = i + j;
/*
* Separate every DUMP_GROUPING bytes by a space.
*/
if (buf_offset % DUMP_GROUPING == 0) {
print_offset += printf(" ");
}
/*
* Print the two-digit hex value for this byte.
*/
unsigned char hex_print = buf[buf_offset];
print_offset += printf("%02x ", hex_print);
}
(void) printf("%*s", ascii_start - print_offset, " ");
print_ascii_block(buf + i, this_line_length);
}
}
/*
* Print an array of bytes to stdout as hexidecimal characters. str must
* have buf_len * 2 + 1 bytes of space.
*/
static void
sprintf_bytes(char *str, uint8_t *buf, uint_t buf_len)
{
int i, n;
for (i = 0; i < buf_len; i++) {
n = sprintf(str, "%02x", buf[i] & 0xff);
str += n;
}
str[0] = '\0';
}
int
main(int argc, char *argv[])
{
char *buf = safe_malloc(SPA_MAXBLOCKSIZE);
uint64_t drr_record_count[DRR_NUMTYPES] = { 0 };
char salt[ZIO_DATA_SALT_LEN * 2 + 1];
char iv[ZIO_DATA_IV_LEN * 2 + 1];
char mac[ZIO_DATA_MAC_LEN * 2 + 1];
uint64_t total_records = 0;
uint64_t payload_size;
dmu_replay_record_t thedrr;
dmu_replay_record_t *drr = &thedrr;
struct drr_begin *drrb = &thedrr.drr_u.drr_begin;
struct drr_end *drre = &thedrr.drr_u.drr_end;
struct drr_object *drro = &thedrr.drr_u.drr_object;
struct drr_freeobjects *drrfo = &thedrr.drr_u.drr_freeobjects;
struct drr_write *drrw = &thedrr.drr_u.drr_write;
struct drr_write_byref *drrwbr = &thedrr.drr_u.drr_write_byref;
struct drr_free *drrf = &thedrr.drr_u.drr_free;
struct drr_spill *drrs = &thedrr.drr_u.drr_spill;
struct drr_write_embedded *drrwe = &thedrr.drr_u.drr_write_embedded;
struct drr_object_range *drror = &thedrr.drr_u.drr_object_range;
struct drr_redact *drrr = &thedrr.drr_u.drr_redact;
struct drr_checksum *drrc = &thedrr.drr_u.drr_checksum;
int c;
boolean_t verbose = B_FALSE;
boolean_t very_verbose = B_FALSE;
boolean_t first = B_TRUE;
/*
* dump flag controls whether the contents of any modified data blocks
* are printed to the console during processing of the stream. Warning:
* for large streams, this can obviously lead to massive prints.
*/
boolean_t dump = B_FALSE;
int err;
zio_cksum_t zc = { { 0 } };
zio_cksum_t pcksum = { { 0 } };
while ((c = getopt(argc, argv, ":vCd")) != -1) {
switch (c) {
case 'C':
do_cksum = B_FALSE;
break;
case 'v':
if (verbose)
very_verbose = B_TRUE;
verbose = B_TRUE;
break;
case 'd':
dump = B_TRUE;
verbose = B_TRUE;
very_verbose = B_TRUE;
break;
case ':':
(void) fprintf(stderr,
"missing argument for '%c' option\n", optopt);
usage();
break;
case '?':
(void) fprintf(stderr, "invalid option '%c'\n",
optopt);
usage();
break;
}
}
if (isatty(STDIN_FILENO)) {
(void) fprintf(stderr,
"Error: Backup stream can not be read "
"from a terminal.\n"
"You must redirect standard input.\n");
exit(1);
}
fletcher_4_init();
send_stream = stdin;
while (read_hdr(drr, &zc)) {
/*
* If this is the first DMU record being processed, check for
* the magic bytes and figure out the endian-ness based on them.
*/
if (first) {
if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) {
do_byteswap = B_TRUE;
if (do_cksum) {
ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
/*
* recalculate header checksum now
* that we know it needs to be
* byteswapped.
*/
fletcher_4_incremental_byteswap(drr,
sizeof (dmu_replay_record_t), &zc);
}
} else if (drrb->drr_magic != DMU_BACKUP_MAGIC) {
(void) fprintf(stderr, "Invalid stream "
"(bad magic number)\n");
exit(1);
}
first = B_FALSE;
}
if (do_byteswap) {
drr->drr_type = BSWAP_32(drr->drr_type);
drr->drr_payloadlen =
BSWAP_32(drr->drr_payloadlen);
}
/*
* At this point, the leading fields of the replay record
* (drr_type and drr_payloadlen) have been byte-swapped if
* necessary, but the rest of the data structure (the
* union of type-specific structures) is still in its
* original state.
*/
if (drr->drr_type >= DRR_NUMTYPES) {
(void) printf("INVALID record found: type 0x%x\n",
drr->drr_type);
(void) printf("Aborting.\n");
exit(1);
}
drr_record_count[drr->drr_type]++;
total_records++;
switch (drr->drr_type) {
case DRR_BEGIN:
if (do_byteswap) {
drrb->drr_magic = BSWAP_64(drrb->drr_magic);
drrb->drr_versioninfo =
BSWAP_64(drrb->drr_versioninfo);
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);
}
(void) printf("BEGIN record\n");
(void) printf("\thdrtype = %lld\n",
DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo));
(void) printf("\tfeatures = %llx\n",
DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo));
(void) printf("\tmagic = %llx\n",
(u_longlong_t)drrb->drr_magic);
(void) printf("\tcreation_time = %llx\n",
(u_longlong_t)drrb->drr_creation_time);
(void) printf("\ttype = %u\n", drrb->drr_type);
(void) printf("\tflags = 0x%x\n", drrb->drr_flags);
(void) printf("\ttoguid = %llx\n",
(u_longlong_t)drrb->drr_toguid);
(void) printf("\tfromguid = %llx\n",
(u_longlong_t)drrb->drr_fromguid);
(void) printf("\ttoname = %s\n", drrb->drr_toname);
if (verbose)
(void) printf("\n");
if (drr->drr_payloadlen != 0) {
nvlist_t *nv;
int sz = drr->drr_payloadlen;
if (sz > SPA_MAXBLOCKSIZE) {
free(buf);
buf = safe_malloc(sz);
}
(void) ssread(buf, sz, &zc);
if (ferror(send_stream))
perror("fread");
err = nvlist_unpack(buf, sz, &nv, 0);
if (err) {
perror(strerror(err));
} else {
nvlist_print(stdout, nv);
nvlist_free(nv);
}
}
break;
case DRR_END:
if (do_byteswap) {
drre->drr_checksum.zc_word[0] =
BSWAP_64(drre->drr_checksum.zc_word[0]);
drre->drr_checksum.zc_word[1] =
BSWAP_64(drre->drr_checksum.zc_word[1]);
drre->drr_checksum.zc_word[2] =
BSWAP_64(drre->drr_checksum.zc_word[2]);
drre->drr_checksum.zc_word[3] =
BSWAP_64(drre->drr_checksum.zc_word[3]);
}
/*
* We compare against the *previous* checksum
* value, because the stored checksum is of
* everything before the DRR_END record.
*/
if (do_cksum && !ZIO_CHECKSUM_EQUAL(drre->drr_checksum,
pcksum)) {
(void) printf("Expected checksum differs from "
"checksum in stream.\n");
(void) printf("Expected checksum = "
"%llx/%llx/%llx/%llx\n",
(long long unsigned int)pcksum.zc_word[0],
(long long unsigned int)pcksum.zc_word[1],
(long long unsigned int)pcksum.zc_word[2],
(long long unsigned int)pcksum.zc_word[3]);
}
(void) printf("END checksum = %llx/%llx/%llx/%llx\n",
(long long unsigned int)
drre->drr_checksum.zc_word[0],
(long long unsigned int)
drre->drr_checksum.zc_word[1],
(long long unsigned int)
drre->drr_checksum.zc_word[2],
(long long unsigned int)
drre->drr_checksum.zc_word[3]);
ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
break;
case DRR_OBJECT:
if (do_byteswap) {
drro->drr_object = BSWAP_64(drro->drr_object);
drro->drr_type = BSWAP_32(drro->drr_type);
drro->drr_bonustype =
BSWAP_32(drro->drr_bonustype);
drro->drr_blksz = BSWAP_32(drro->drr_blksz);
drro->drr_bonuslen =
BSWAP_32(drro->drr_bonuslen);
drro->drr_raw_bonuslen =
BSWAP_32(drro->drr_raw_bonuslen);
drro->drr_toguid = BSWAP_64(drro->drr_toguid);
drro->drr_maxblkid =
BSWAP_64(drro->drr_maxblkid);
}
payload_size = DRR_OBJECT_PAYLOAD_SIZE(drro);
if (verbose) {
(void) printf("OBJECT object = %llu type = %u "
"bonustype = %u blksz = %u bonuslen = %u "
"dn_slots = %u raw_bonuslen = %u "
"flags = %u maxblkid = %llu "
"indblkshift = %u nlevels = %u "
"nblkptr = %u\n",
(u_longlong_t)drro->drr_object,
drro->drr_type,
drro->drr_bonustype,
drro->drr_blksz,
drro->drr_bonuslen,
drro->drr_dn_slots,
drro->drr_raw_bonuslen,
drro->drr_flags,
(u_longlong_t)drro->drr_maxblkid,
drro->drr_indblkshift,
drro->drr_nlevels,
drro->drr_nblkptr);
}
if (drro->drr_bonuslen > 0) {
(void) ssread(buf, payload_size, &zc);
if (dump)
print_block(buf, payload_size);
}
break;
case DRR_FREEOBJECTS:
if (do_byteswap) {
drrfo->drr_firstobj =
BSWAP_64(drrfo->drr_firstobj);
drrfo->drr_numobjs =
BSWAP_64(drrfo->drr_numobjs);
drrfo->drr_toguid = BSWAP_64(drrfo->drr_toguid);
}
if (verbose) {
(void) printf("FREEOBJECTS firstobj = %llu "
"numobjs = %llu\n",
(u_longlong_t)drrfo->drr_firstobj,
(u_longlong_t)drrfo->drr_numobjs);
}
break;
case DRR_WRITE:
if (do_byteswap) {
drrw->drr_object = BSWAP_64(drrw->drr_object);
drrw->drr_type = BSWAP_32(drrw->drr_type);
drrw->drr_offset = BSWAP_64(drrw->drr_offset);
drrw->drr_logical_size =
BSWAP_64(drrw->drr_logical_size);
drrw->drr_toguid = BSWAP_64(drrw->drr_toguid);
drrw->drr_key.ddk_prop =
BSWAP_64(drrw->drr_key.ddk_prop);
drrw->drr_compressed_size =
BSWAP_64(drrw->drr_compressed_size);
}
payload_size = DRR_WRITE_PAYLOAD_SIZE(drrw);
/*
* If this is verbose and/or dump output,
* print info on the modified block
*/
if (verbose) {
sprintf_bytes(salt, drrw->drr_salt,
ZIO_DATA_SALT_LEN);
sprintf_bytes(iv, drrw->drr_iv,
ZIO_DATA_IV_LEN);
sprintf_bytes(mac, drrw->drr_mac,
ZIO_DATA_MAC_LEN);
(void) printf("WRITE object = %llu type = %u "
"checksum type = %u compression type = %u "
"flags = %u offset = %llu "
"logical_size = %llu "
"compressed_size = %llu "
"payload_size = %llu props = %llx "
"salt = %s iv = %s mac = %s\n",
(u_longlong_t)drrw->drr_object,
drrw->drr_type,
drrw->drr_checksumtype,
drrw->drr_compressiontype,
drrw->drr_flags,
(u_longlong_t)drrw->drr_offset,
(u_longlong_t)drrw->drr_logical_size,
(u_longlong_t)drrw->drr_compressed_size,
(u_longlong_t)payload_size,
(u_longlong_t)drrw->drr_key.ddk_prop,
salt,
iv,
mac);
}
/*
* Read the contents of the block in from STDIN to buf
*/
(void) ssread(buf, payload_size, &zc);
/*
* If in dump mode
*/
if (dump) {
print_block(buf, payload_size);
}
total_write_size += payload_size;
break;
case DRR_WRITE_BYREF:
if (do_byteswap) {
drrwbr->drr_object =
BSWAP_64(drrwbr->drr_object);
drrwbr->drr_offset =
BSWAP_64(drrwbr->drr_offset);
drrwbr->drr_length =
BSWAP_64(drrwbr->drr_length);
drrwbr->drr_toguid =
BSWAP_64(drrwbr->drr_toguid);
drrwbr->drr_refguid =
BSWAP_64(drrwbr->drr_refguid);
drrwbr->drr_refobject =
BSWAP_64(drrwbr->drr_refobject);
drrwbr->drr_refoffset =
BSWAP_64(drrwbr->drr_refoffset);
drrwbr->drr_key.ddk_prop =
BSWAP_64(drrwbr->drr_key.ddk_prop);
}
if (verbose) {
(void) printf("WRITE_BYREF object = %llu "
"checksum type = %u props = %llx "
"offset = %llu length = %llu "
"toguid = %llx refguid = %llx "
"refobject = %llu refoffset = %llu\n",
(u_longlong_t)drrwbr->drr_object,
drrwbr->drr_checksumtype,
(u_longlong_t)drrwbr->drr_key.ddk_prop,
(u_longlong_t)drrwbr->drr_offset,
(u_longlong_t)drrwbr->drr_length,
(u_longlong_t)drrwbr->drr_toguid,
(u_longlong_t)drrwbr->drr_refguid,
(u_longlong_t)drrwbr->drr_refobject,
(u_longlong_t)drrwbr->drr_refoffset);
}
break;
case DRR_FREE:
if (do_byteswap) {
drrf->drr_object = BSWAP_64(drrf->drr_object);
drrf->drr_offset = BSWAP_64(drrf->drr_offset);
drrf->drr_length = BSWAP_64(drrf->drr_length);
}
if (verbose) {
(void) printf("FREE object = %llu "
"offset = %llu length = %lld\n",
(u_longlong_t)drrf->drr_object,
(u_longlong_t)drrf->drr_offset,
(longlong_t)drrf->drr_length);
}
break;
case DRR_SPILL:
if (do_byteswap) {
drrs->drr_object = BSWAP_64(drrs->drr_object);
drrs->drr_length = BSWAP_64(drrs->drr_length);
drrs->drr_compressed_size =
BSWAP_64(drrs->drr_compressed_size);
drrs->drr_type = BSWAP_32(drrs->drr_type);
}
payload_size = DRR_SPILL_PAYLOAD_SIZE(drrs);
if (verbose) {
sprintf_bytes(salt, drrs->drr_salt,
ZIO_DATA_SALT_LEN);
sprintf_bytes(iv, drrs->drr_iv,
ZIO_DATA_IV_LEN);
sprintf_bytes(mac, drrs->drr_mac,
ZIO_DATA_MAC_LEN);
(void) printf("SPILL block for object = %llu "
"length = %llu flags = %u "
"compression type = %u "
"compressed_size = %llu "
"payload_size = %llu "
"salt = %s iv = %s mac = %s\n",
(u_longlong_t)drrs->drr_object,
(u_longlong_t)drrs->drr_length,
drrs->drr_flags,
drrs->drr_compressiontype,
(u_longlong_t)drrs->drr_compressed_size,
(u_longlong_t)payload_size,
salt,
iv,
mac);
}
(void) ssread(buf, payload_size, &zc);
if (dump) {
print_block(buf, payload_size);
}
break;
case DRR_WRITE_EMBEDDED:
if (do_byteswap) {
drrwe->drr_object =
BSWAP_64(drrwe->drr_object);
drrwe->drr_offset =
BSWAP_64(drrwe->drr_offset);
drrwe->drr_length =
BSWAP_64(drrwe->drr_length);
drrwe->drr_toguid =
BSWAP_64(drrwe->drr_toguid);
drrwe->drr_lsize =
BSWAP_32(drrwe->drr_lsize);
drrwe->drr_psize =
BSWAP_32(drrwe->drr_psize);
}
if (verbose) {
(void) printf("WRITE_EMBEDDED object = %llu "
"offset = %llu length = %llu "
"toguid = %llx comp = %u etype = %u "
"lsize = %u psize = %u\n",
(u_longlong_t)drrwe->drr_object,
(u_longlong_t)drrwe->drr_offset,
(u_longlong_t)drrwe->drr_length,
(u_longlong_t)drrwe->drr_toguid,
drrwe->drr_compression,
drrwe->drr_etype,
drrwe->drr_lsize,
drrwe->drr_psize);
}
(void) ssread(buf,
P2ROUNDUP(drrwe->drr_psize, 8), &zc);
if (dump) {
print_block(buf,
P2ROUNDUP(drrwe->drr_psize, 8));
}
break;
case DRR_OBJECT_RANGE:
if (do_byteswap) {
drror->drr_firstobj =
BSWAP_64(drror->drr_firstobj);
drror->drr_numslots =
BSWAP_64(drror->drr_numslots);
drror->drr_toguid = BSWAP_64(drror->drr_toguid);
}
if (verbose) {
sprintf_bytes(salt, drror->drr_salt,
ZIO_DATA_SALT_LEN);
sprintf_bytes(iv, drror->drr_iv,
ZIO_DATA_IV_LEN);
sprintf_bytes(mac, drror->drr_mac,
ZIO_DATA_MAC_LEN);
(void) printf("OBJECT_RANGE firstobj = %llu "
"numslots = %llu flags = %u "
"salt = %s iv = %s mac = %s\n",
(u_longlong_t)drror->drr_firstobj,
(u_longlong_t)drror->drr_numslots,
drror->drr_flags,
salt,
iv,
mac);
}
break;
case DRR_REDACT:
if (do_byteswap) {
drrr->drr_object = BSWAP_64(drrr->drr_object);
drrr->drr_offset = BSWAP_64(drrr->drr_offset);
drrr->drr_length = BSWAP_64(drrr->drr_length);
drrr->drr_toguid = BSWAP_64(drrr->drr_toguid);
}
if (verbose) {
(void) printf("REDACT object = %llu offset = "
"%llu length = %llu\n",
(u_longlong_t)drrr->drr_object,
(u_longlong_t)drrr->drr_offset,
(u_longlong_t)drrr->drr_length);
}
break;
case DRR_NUMTYPES:
/* should never be reached */
exit(1);
}
if (drr->drr_type != DRR_BEGIN && very_verbose) {
(void) printf(" checksum = %llx/%llx/%llx/%llx\n",
(longlong_t)drrc->drr_checksum.zc_word[0],
(longlong_t)drrc->drr_checksum.zc_word[1],
(longlong_t)drrc->drr_checksum.zc_word[2],
(longlong_t)drrc->drr_checksum.zc_word[3]);
}
pcksum = zc;
}
free(buf);
fletcher_4_fini();
/* Print final summary */
(void) printf("SUMMARY:\n");
(void) printf("\tTotal DRR_BEGIN records = %lld\n",
(u_longlong_t)drr_record_count[DRR_BEGIN]);
(void) printf("\tTotal DRR_END records = %lld\n",
(u_longlong_t)drr_record_count[DRR_END]);
(void) printf("\tTotal DRR_OBJECT records = %lld\n",
(u_longlong_t)drr_record_count[DRR_OBJECT]);
(void) printf("\tTotal DRR_FREEOBJECTS records = %lld\n",
(u_longlong_t)drr_record_count[DRR_FREEOBJECTS]);
(void) printf("\tTotal DRR_WRITE records = %lld\n",
(u_longlong_t)drr_record_count[DRR_WRITE]);
(void) printf("\tTotal DRR_WRITE_BYREF records = %lld\n",
(u_longlong_t)drr_record_count[DRR_WRITE_BYREF]);
(void) printf("\tTotal DRR_WRITE_EMBEDDED records = %lld\n",
(u_longlong_t)drr_record_count[DRR_WRITE_EMBEDDED]);
(void) printf("\tTotal DRR_FREE records = %lld\n",
(u_longlong_t)drr_record_count[DRR_FREE]);
(void) printf("\tTotal DRR_SPILL records = %lld\n",
(u_longlong_t)drr_record_count[DRR_SPILL]);
(void) printf("\tTotal records = %lld\n",
(u_longlong_t)total_records);
(void) printf("\tTotal write size = %lld (0x%llx)\n",
(u_longlong_t)total_write_size, (u_longlong_t)total_write_size);
(void) printf("\tTotal stream length = %lld (0x%llx)\n",
(u_longlong_t)total_stream_len, (u_longlong_t)total_stream_len);
return (0);
}
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