--- /dev/null
+/*
+ * 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>
+ */
+
+#include <libnvpair.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+
+#include <sys/dmu.h>
+#include <sys/zfs_ioctl.h>
+#include <zfs_fletcher.h>
+
+uint64_t drr_record_count[DRR_NUMTYPES];
+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;
+#define INITIAL_BUFLEN (1<<20)
+
+static void
+usage(void)
+{
+ (void) fprintf(stderr, "usage: zstreamdump [-v] [-C] < file\n");
+ (void) fprintf(stderr, "\t -v -- verbose\n");
+ (void) fprintf(stderr, "\t -C -- suppress checksum verification\n");
+ exit(1);
+}
+
+/*
+ * 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 && 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);
+}
+
+int
+main(int argc, char *argv[])
+{
+ char *buf = malloc(INITIAL_BUFLEN);
+ 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;
+ char c;
+ boolean_t verbose = B_FALSE;
+ boolean_t first = B_TRUE;
+ int err;
+ zio_cksum_t zc = { { 0 } };
+ zio_cksum_t pcksum = { { 0 } };
+
+ while ((c = getopt(argc, argv, ":vC")) != -1) {
+ switch (c) {
+ case 'C':
+ do_cksum = B_FALSE;
+ break;
+ case 'v':
+ 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();
+ }
+ }
+
+ 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);
+ }
+
+ send_stream = stdin;
+ pcksum = zc;
+ while (ssread(drr, sizeof (dmu_replay_record_t), &zc)) {
+
+ 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]++;
+
+ 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 ((DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) ==
+ DMU_COMPOUNDSTREAM) && drr->drr_payloadlen != 0) {
+ nvlist_t *nv;
+ int sz = drr->drr_payloadlen;
+
+ if (sz > 1<<20) {
+ free(buf);
+ buf = 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));
+ 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_toguid = BSWAP_64(drro->drr_toguid);
+ }
+ if (verbose) {
+ (void) printf("OBJECT object = %llu type = %u "
+ "bonustype = %u blksz = %u bonuslen = %u\n",
+ (u_longlong_t)drro->drr_object,
+ drro->drr_type,
+ drro->drr_bonustype,
+ drro->drr_blksz,
+ drro->drr_bonuslen);
+ }
+ if (drro->drr_bonuslen > 0) {
+ (void) ssread(buf, P2ROUNDUP(drro->drr_bonuslen,
+ 8), &zc);
+ }
+ 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_length = BSWAP_64(drrw->drr_length);
+ drrw->drr_toguid = BSWAP_64(drrw->drr_toguid);
+ drrw->drr_key.ddk_prop =
+ BSWAP_64(drrw->drr_key.ddk_prop);
+ }
+ if (verbose) {
+ (void) printf("WRITE object = %llu type = %u "
+ "checksum type = %u\n"
+ "offset = %llu length = %llu "
+ "props = %llx\n",
+ (u_longlong_t)drrw->drr_object,
+ drrw->drr_type,
+ drrw->drr_checksumtype,
+ (u_longlong_t)drrw->drr_offset,
+ (u_longlong_t)drrw->drr_length,
+ (u_longlong_t)drrw->drr_key.ddk_prop);
+ }
+ (void) ssread(buf, drrw->drr_length, &zc);
+ total_write_size += drrw->drr_length;
+ 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\n"
+ "offset = %llu length = %llu\n"
+ "toguid = %llx refguid = %llx\n"
+ "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);
+ }
+ if (verbose) {
+ (void) printf("SPILL block for object = %llu "
+ "length = %llu\n",
+ (long long unsigned int)drrs->drr_object,
+ (long long unsigned int)drrs->drr_length);
+ }
+ (void) ssread(buf, drrs->drr_length, &zc);
+ break;
+ case DRR_NUMTYPES:
+ /* should never be reached */
+ exit(1);
+ }
+ pcksum = zc;
+ }
+ free(buf);
+
+ /* 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_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)(drr_record_count[DRR_BEGIN] +
+ drr_record_count[DRR_OBJECT] +
+ drr_record_count[DRR_FREEOBJECTS] +
+ drr_record_count[DRR_WRITE] +
+ drr_record_count[DRR_FREE] +
+ drr_record_count[DRR_SPILL] +
+ drr_record_count[DRR_END]));
+ (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);
+}
git://git.camperquake.de / zfs.git / commitdiff