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-rw-r--r--cmd/zdb/zdb.c2418
1 files changed, 2418 insertions, 0 deletions
diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c
new file mode 100644
index 000000000..253a1346a
--- /dev/null
+++ b/cmd/zdb/zdb.c
@@ -0,0 +1,2418 @@
+/*
+ * 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 2008 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <sys/zfs_context.h>
+#include <sys/spa.h>
+#include <sys/spa_impl.h>
+#include <sys/dmu.h>
+#include <sys/zap.h>
+#include <sys/fs/zfs.h>
+#include <sys/zfs_znode.h>
+#include <sys/vdev.h>
+#include <sys/vdev_impl.h>
+#include <sys/metaslab_impl.h>
+#include <sys/dmu_objset.h>
+#include <sys/dsl_dir.h>
+#include <sys/dsl_dataset.h>
+#include <sys/dsl_pool.h>
+#include <sys/dbuf.h>
+#include <sys/zil.h>
+#include <sys/zil_impl.h>
+#include <sys/stat.h>
+#include <sys/resource.h>
+#include <sys/dmu_traverse.h>
+#include <sys/zio_checksum.h>
+#include <sys/zio_compress.h>
+#include <sys/zfs_fuid.h>
+#include <sys/arc.h>
+#undef ZFS_MAXNAMELEN
+#undef verify
+#include <libzfs.h>
+
+const char cmdname[] = "zdb";
+uint8_t dump_opt[256];
+
+typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
+
+extern void dump_intent_log(zilog_t *);
+uint64_t *zopt_object = NULL;
+int zopt_objects = 0;
+libzfs_handle_t *g_zfs;
+boolean_t zdb_sig_user_data = B_TRUE;
+int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
+
+/*
+ * These libumem hooks provide a reasonable set of defaults for the allocator's
+ * debugging facilities.
+ */
+const char *
+_umem_debug_init()
+{
+ return ("default,verbose"); /* $UMEM_DEBUG setting */
+}
+
+const char *
+_umem_logging_init(void)
+{
+ return ("fail,contents"); /* $UMEM_LOGGING setting */
+}
+
+static void
+usage(void)
+{
+ (void) fprintf(stderr,
+ "Usage: %s [-udibcsv] [-U cachefile_path] "
+ "[-S user:cksumalg] "
+ "dataset [object...]\n"
+ " %s -C [pool]\n"
+ " %s -l dev\n"
+ " %s -R pool:vdev:offset:size:flags\n"
+ " %s [-p path_to_vdev_dir]\n"
+ " %s -e pool | GUID | devid ...\n",
+ cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
+
+ (void) fprintf(stderr, " -u uberblock\n");
+ (void) fprintf(stderr, " -d datasets\n");
+ (void) fprintf(stderr, " -C cached pool configuration\n");
+ (void) fprintf(stderr, " -i intent logs\n");
+ (void) fprintf(stderr, " -b block statistics\n");
+ (void) fprintf(stderr, " -c checksum all data blocks\n");
+ (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
+ (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- "
+ "dump blkptr signatures\n");
+ (void) fprintf(stderr, " -v verbose (applies to all others)\n");
+ (void) fprintf(stderr, " -l dump label contents\n");
+ (void) fprintf(stderr, " -U cachefile_path -- use alternate "
+ "cachefile\n");
+ (void) fprintf(stderr, " -R read and display block from a "
+ "device\n");
+ (void) fprintf(stderr, " -e Pool is exported/destroyed/"
+ "has altroot\n");
+ (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n");
+ (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
+ "to make only that option verbose\n");
+ (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
+ exit(1);
+}
+
+static void
+fatal(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ (void) fprintf(stderr, "%s: ", cmdname);
+ (void) vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ (void) fprintf(stderr, "\n");
+
+ abort();
+}
+
+static void
+dump_nvlist(nvlist_t *list, int indent)
+{
+ nvpair_t *elem = NULL;
+
+ while ((elem = nvlist_next_nvpair(list, elem)) != NULL) {
+ switch (nvpair_type(elem)) {
+ case DATA_TYPE_STRING:
+ {
+ char *value;
+
+ VERIFY(nvpair_value_string(elem, &value) == 0);
+ (void) printf("%*s%s='%s'\n", indent, "",
+ nvpair_name(elem), value);
+ }
+ break;
+
+ case DATA_TYPE_UINT64:
+ {
+ uint64_t value;
+
+ VERIFY(nvpair_value_uint64(elem, &value) == 0);
+ (void) printf("%*s%s=%llu\n", indent, "",
+ nvpair_name(elem), (u_longlong_t)value);
+ }
+ break;
+
+ case DATA_TYPE_NVLIST:
+ {
+ nvlist_t *value;
+
+ VERIFY(nvpair_value_nvlist(elem, &value) == 0);
+ (void) printf("%*s%s\n", indent, "",
+ nvpair_name(elem));
+ dump_nvlist(value, indent + 4);
+ }
+ break;
+
+ case DATA_TYPE_NVLIST_ARRAY:
+ {
+ nvlist_t **value;
+ uint_t c, count;
+
+ VERIFY(nvpair_value_nvlist_array(elem, &value,
+ &count) == 0);
+
+ for (c = 0; c < count; c++) {
+ (void) printf("%*s%s[%u]\n", indent, "",
+ nvpair_name(elem), c);
+ dump_nvlist(value[c], indent + 8);
+ }
+ }
+ break;
+
+ default:
+
+ (void) printf("bad config type %d for %s\n",
+ nvpair_type(elem), nvpair_name(elem));
+ }
+ }
+}
+
+/* ARGSUSED */
+static void
+dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
+{
+ nvlist_t *nv;
+ size_t nvsize = *(uint64_t *)data;
+ char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
+
+ VERIFY(0 == dmu_read(os, object, 0, nvsize, packed));
+
+ VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
+
+ umem_free(packed, nvsize);
+
+ dump_nvlist(nv, 8);
+
+ nvlist_free(nv);
+}
+
+const char dump_zap_stars[] = "****************************************";
+const int dump_zap_width = sizeof (dump_zap_stars) - 1;
+
+static void
+dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
+{
+ int i;
+ int minidx = ZAP_HISTOGRAM_SIZE - 1;
+ int maxidx = 0;
+ uint64_t max = 0;
+
+ for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
+ if (histo[i] > max)
+ max = histo[i];
+ if (histo[i] > 0 && i > maxidx)
+ maxidx = i;
+ if (histo[i] > 0 && i < minidx)
+ minidx = i;
+ }
+
+ if (max < dump_zap_width)
+ max = dump_zap_width;
+
+ for (i = minidx; i <= maxidx; i++)
+ (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
+ &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
+}
+
+static void
+dump_zap_stats(objset_t *os, uint64_t object)
+{
+ int error;
+ zap_stats_t zs;
+
+ error = zap_get_stats(os, object, &zs);
+ if (error)
+ return;
+
+ if (zs.zs_ptrtbl_len == 0) {
+ ASSERT(zs.zs_num_blocks == 1);
+ (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
+ (u_longlong_t)zs.zs_blocksize,
+ (u_longlong_t)zs.zs_num_entries);
+ return;
+ }
+
+ (void) printf("\tFat ZAP stats:\n");
+
+ (void) printf("\t\tPointer table:\n");
+ (void) printf("\t\t\t%llu elements\n",
+ (u_longlong_t)zs.zs_ptrtbl_len);
+ (void) printf("\t\t\tzt_blk: %llu\n",
+ (u_longlong_t)zs.zs_ptrtbl_zt_blk);
+ (void) printf("\t\t\tzt_numblks: %llu\n",
+ (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
+ (void) printf("\t\t\tzt_shift: %llu\n",
+ (u_longlong_t)zs.zs_ptrtbl_zt_shift);
+ (void) printf("\t\t\tzt_blks_copied: %llu\n",
+ (u_longlong_t)zs.zs_ptrtbl_blks_copied);
+ (void) printf("\t\t\tzt_nextblk: %llu\n",
+ (u_longlong_t)zs.zs_ptrtbl_nextblk);
+
+ (void) printf("\t\tZAP entries: %llu\n",
+ (u_longlong_t)zs.zs_num_entries);
+ (void) printf("\t\tLeaf blocks: %llu\n",
+ (u_longlong_t)zs.zs_num_leafs);
+ (void) printf("\t\tTotal blocks: %llu\n",
+ (u_longlong_t)zs.zs_num_blocks);
+ (void) printf("\t\tzap_block_type: 0x%llx\n",
+ (u_longlong_t)zs.zs_block_type);
+ (void) printf("\t\tzap_magic: 0x%llx\n",
+ (u_longlong_t)zs.zs_magic);
+ (void) printf("\t\tzap_salt: 0x%llx\n",
+ (u_longlong_t)zs.zs_salt);
+
+ (void) printf("\t\tLeafs with 2^n pointers:\n");
+ dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
+
+ (void) printf("\t\tBlocks with n*5 entries:\n");
+ dump_zap_histogram(zs.zs_blocks_with_n5_entries);
+
+ (void) printf("\t\tBlocks n/10 full:\n");
+ dump_zap_histogram(zs.zs_blocks_n_tenths_full);
+
+ (void) printf("\t\tEntries with n chunks:\n");
+ dump_zap_histogram(zs.zs_entries_using_n_chunks);
+
+ (void) printf("\t\tBuckets with n entries:\n");
+ dump_zap_histogram(zs.zs_buckets_with_n_entries);
+}
+
+/*ARGSUSED*/
+static void
+dump_none(objset_t *os, uint64_t object, void *data, size_t size)
+{
+}
+
+/*ARGSUSED*/
+void
+dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
+{
+}
+
+/*ARGSUSED*/
+static void
+dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
+{
+}
+
+/*ARGSUSED*/
+static void
+dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
+{
+ zap_cursor_t zc;
+ zap_attribute_t attr;
+ void *prop;
+ int i;
+
+ dump_zap_stats(os, object);
+ (void) printf("\n");
+
+ for (zap_cursor_init(&zc, os, object);
+ zap_cursor_retrieve(&zc, &attr) == 0;
+ zap_cursor_advance(&zc)) {
+ (void) printf("\t\t%s = ", attr.za_name);
+ if (attr.za_num_integers == 0) {
+ (void) printf("\n");
+ continue;
+ }
+ prop = umem_zalloc(attr.za_num_integers *
+ attr.za_integer_length, UMEM_NOFAIL);
+ (void) zap_lookup(os, object, attr.za_name,
+ attr.za_integer_length, attr.za_num_integers, prop);
+ if (attr.za_integer_length == 1) {
+ (void) printf("%s", (char *)prop);
+ } else {
+ for (i = 0; i < attr.za_num_integers; i++) {
+ switch (attr.za_integer_length) {
+ case 2:
+ (void) printf("%u ",
+ ((uint16_t *)prop)[i]);
+ break;
+ case 4:
+ (void) printf("%u ",
+ ((uint32_t *)prop)[i]);
+ break;
+ case 8:
+ (void) printf("%lld ",
+ (u_longlong_t)((int64_t *)prop)[i]);
+ break;
+ }
+ }
+ }
+ (void) printf("\n");
+ umem_free(prop, attr.za_num_integers * attr.za_integer_length);
+ }
+ zap_cursor_fini(&zc);
+}
+
+/*ARGSUSED*/
+static void
+dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
+{
+ zap_cursor_t zc;
+ zap_attribute_t attr;
+ const char *typenames[] = {
+ /* 0 */ "not specified",
+ /* 1 */ "FIFO",
+ /* 2 */ "Character Device",
+ /* 3 */ "3 (invalid)",
+ /* 4 */ "Directory",
+ /* 5 */ "5 (invalid)",
+ /* 6 */ "Block Device",
+ /* 7 */ "7 (invalid)",
+ /* 8 */ "Regular File",
+ /* 9 */ "9 (invalid)",
+ /* 10 */ "Symbolic Link",
+ /* 11 */ "11 (invalid)",
+ /* 12 */ "Socket",
+ /* 13 */ "Door",
+ /* 14 */ "Event Port",
+ /* 15 */ "15 (invalid)",
+ };
+
+ dump_zap_stats(os, object);
+ (void) printf("\n");
+
+ for (zap_cursor_init(&zc, os, object);
+ zap_cursor_retrieve(&zc, &attr) == 0;
+ zap_cursor_advance(&zc)) {
+ (void) printf("\t\t%s = %lld (type: %s)\n",
+ attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
+ typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
+ }
+ zap_cursor_fini(&zc);
+}
+
+static void
+dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
+{
+ uint64_t alloc, offset, entry;
+ uint8_t mapshift = sm->sm_shift;
+ uint64_t mapstart = sm->sm_start;
+ char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
+ "INVALID", "INVALID", "INVALID", "INVALID" };
+
+ if (smo->smo_object == 0)
+ return;
+
+ /*
+ * Print out the freelist entries in both encoded and decoded form.
+ */
+ alloc = 0;
+ for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
+ VERIFY(0 == dmu_read(os, smo->smo_object, offset,
+ sizeof (entry), &entry));
+ if (SM_DEBUG_DECODE(entry)) {
+ (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n",
+ (u_longlong_t)(offset / sizeof (entry)),
+ ddata[SM_DEBUG_ACTION_DECODE(entry)],
+ (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
+ (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
+ } else {
+ (void) printf("\t\t[%4llu] %c range:"
+ " %08llx-%08llx size: %06llx\n",
+ (u_longlong_t)(offset / sizeof (entry)),
+ SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
+ (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
+ mapshift) + mapstart),
+ (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
+ mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
+ mapshift)),
+ (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
+ if (SM_TYPE_DECODE(entry) == SM_ALLOC)
+ alloc += SM_RUN_DECODE(entry) << mapshift;
+ else
+ alloc -= SM_RUN_DECODE(entry) << mapshift;
+ }
+ }
+ if (alloc != smo->smo_alloc) {
+ (void) printf("space_map_object alloc (%llu) INCONSISTENT "
+ "with space map summary (%llu)\n",
+ (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
+ }
+}
+
+static void
+dump_metaslab(metaslab_t *msp)
+{
+ char freebuf[5];
+ space_map_obj_t *smo = &msp->ms_smo;
+ vdev_t *vd = msp->ms_group->mg_vd;
+ spa_t *spa = vd->vdev_spa;
+
+ nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf);
+
+ if (dump_opt['d'] <= 5) {
+ (void) printf("\t%10llx %10llu %5s\n",
+ (u_longlong_t)msp->ms_map.sm_start,
+ (u_longlong_t)smo->smo_object,
+ freebuf);
+ return;
+ }
+
+ (void) printf(
+ "\tvdev %llu offset %08llx spacemap %4llu free %5s\n",
+ (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start,
+ (u_longlong_t)smo->smo_object, freebuf);
+
+ ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift));
+
+ dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map);
+}
+
+static void
+dump_metaslabs(spa_t *spa)
+{
+ vdev_t *rvd = spa->spa_root_vdev;
+ vdev_t *vd;
+ int c, m;
+
+ (void) printf("\nMetaslabs:\n");
+
+ for (c = 0; c < rvd->vdev_children; c++) {
+ vd = rvd->vdev_child[c];
+
+ (void) printf("\n vdev %llu\n\n", (u_longlong_t)vd->vdev_id);
+
+ if (dump_opt['d'] <= 5) {
+ (void) printf("\t%10s %10s %5s\n",
+ "offset", "spacemap", "free");
+ (void) printf("\t%10s %10s %5s\n",
+ "------", "--------", "----");
+ }
+ for (m = 0; m < vd->vdev_ms_count; m++)
+ dump_metaslab(vd->vdev_ms[m]);
+ (void) printf("\n");
+ }
+}
+
+static void
+dump_dtl(vdev_t *vd, int indent)
+{
+ avl_tree_t *t = &vd->vdev_dtl_map.sm_root;
+ space_seg_t *ss;
+ vdev_t *pvd;
+ int c;
+
+ if (indent == 0)
+ (void) printf("\nDirty time logs:\n\n");
+
+ (void) printf("\t%*s%s\n", indent, "",
+ vd->vdev_path ? vd->vdev_path :
+ vd->vdev_parent ? vd->vdev_ops->vdev_op_type :
+ spa_name(vd->vdev_spa));
+
+ for (ss = avl_first(t); ss; ss = AVL_NEXT(t, ss)) {
+ /*
+ * Everything in this DTL must appear in all parent DTL unions.
+ */
+ for (pvd = vd; pvd; pvd = pvd->vdev_parent)
+ ASSERT(vdev_dtl_contains(&pvd->vdev_dtl_map,
+ ss->ss_start, ss->ss_end - ss->ss_start));
+ (void) printf("\t%*soutage [%llu,%llu] length %llu\n",
+ indent, "",
+ (u_longlong_t)ss->ss_start,
+ (u_longlong_t)ss->ss_end - 1,
+ (u_longlong_t)(ss->ss_end - ss->ss_start));
+ }
+
+ (void) printf("\n");
+
+ if (dump_opt['d'] > 5 && vd->vdev_children == 0) {
+ dump_spacemap(vd->vdev_spa->spa_meta_objset, &vd->vdev_dtl,
+ &vd->vdev_dtl_map);
+ (void) printf("\n");
+ }
+
+ for (c = 0; c < vd->vdev_children; c++)
+ dump_dtl(vd->vdev_child[c], indent + 4);
+}
+
+/*ARGSUSED*/
+static void
+dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
+{
+}
+
+static uint64_t
+blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid)
+{
+ if (level < 0)
+ return (blkid);
+
+ return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
+ dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
+}
+
+static void
+sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas)
+{
+ dva_t *dva = bp->blk_dva;
+ int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1;
+ int i;
+
+ blkbuf[0] = '\0';
+
+ for (i = 0; i < ndvas; i++)
+ (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
+ (u_longlong_t)DVA_GET_VDEV(&dva[i]),
+ (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
+ (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
+
+ (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu",
+ (u_longlong_t)BP_GET_LSIZE(bp),
+ (u_longlong_t)BP_GET_PSIZE(bp),
+ (u_longlong_t)bp->blk_fill,
+ (u_longlong_t)bp->blk_birth);
+}
+
+static void
+print_indirect(blkptr_t *bp, const zbookmark_t *zb,
+ const dnode_phys_t *dnp)
+{
+ char blkbuf[BP_SPRINTF_LEN];
+ int l;
+
+ ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
+ ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
+
+ (void) printf("%16llx ",
+ (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid));
+
+ ASSERT(zb->zb_level >= 0);
+
+ for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
+ if (l == zb->zb_level) {
+ (void) printf("L%llx", (u_longlong_t)zb->zb_level);
+ } else {
+ (void) printf(" ");
+ }
+ }
+
+ sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
+ (void) printf("%s\n", blkbuf);
+}
+
+#define SET_BOOKMARK(zb, objset, object, level, blkid) \
+{ \
+ (zb)->zb_objset = objset; \
+ (zb)->zb_object = object; \
+ (zb)->zb_level = level; \
+ (zb)->zb_blkid = blkid; \
+}
+
+static int
+visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
+ blkptr_t *bp, const zbookmark_t *zb)
+{
+ int err;
+
+ if (bp->blk_birth == 0)
+ return (0);
+
+ print_indirect(bp, zb, dnp);
+
+ if (BP_GET_LEVEL(bp) > 0) {
+ uint32_t flags = ARC_WAIT;
+ int i;
+ blkptr_t *cbp;
+ int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
+ arc_buf_t *buf;
+ uint64_t fill = 0;
+
+ err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
+ ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
+ if (err)
+ return (err);
+
+ /* recursively visit blocks below this */
+ cbp = buf->b_data;
+ for (i = 0; i < epb; i++, cbp++) {
+ zbookmark_t czb;
+
+ SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
+ zb->zb_level - 1,
+ zb->zb_blkid * epb + i);
+ err = visit_indirect(spa, dnp, cbp, &czb);
+ if (err)
+ break;
+ fill += cbp->blk_fill;
+ }
+ ASSERT3U(fill, ==, bp->blk_fill);
+ (void) arc_buf_remove_ref(buf, &buf);
+ }
+
+ return (err);
+}
+
+/*ARGSUSED*/
+static void
+dump_indirect(dnode_t *dn)
+{
+ dnode_phys_t *dnp = dn->dn_phys;
+ int j;
+ zbookmark_t czb;
+
+ (void) printf("Indirect blocks:\n");
+
+ SET_BOOKMARK(&czb, dmu_objset_id(&dn->dn_objset->os),
+ dn->dn_object, dnp->dn_nlevels - 1, 0);
+ for (j = 0; j < dnp->dn_nblkptr; j++) {
+ czb.zb_blkid = j;
+ (void) visit_indirect(dmu_objset_spa(&dn->dn_objset->os), dnp,
+ &dnp->dn_blkptr[j], &czb);
+ }
+
+ (void) printf("\n");
+}
+
+/*ARGSUSED*/
+static void
+dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
+{
+ dsl_dir_phys_t *dd = data;
+ time_t crtime;
+ char nice[6];
+
+ if (dd == NULL)
+ return;
+
+ ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
+
+ crtime = dd->dd_creation_time;
+ (void) printf("\t\tcreation_time = %s", ctime(&crtime));
+ (void) printf("\t\thead_dataset_obj = %llu\n",
+ (u_longlong_t)dd->dd_head_dataset_obj);
+ (void) printf("\t\tparent_dir_obj = %llu\n",
+ (u_longlong_t)dd->dd_parent_obj);
+ (void) printf("\t\torigin_obj = %llu\n",
+ (u_longlong_t)dd->dd_origin_obj);
+ (void) printf("\t\tchild_dir_zapobj = %llu\n",
+ (u_longlong_t)dd->dd_child_dir_zapobj);
+ nicenum(dd->dd_used_bytes, nice);
+ (void) printf("\t\tused_bytes = %s\n", nice);
+ nicenum(dd->dd_compressed_bytes, nice);
+ (void) printf("\t\tcompressed_bytes = %s\n", nice);
+ nicenum(dd->dd_uncompressed_bytes, nice);
+ (void) printf("\t\tuncompressed_bytes = %s\n", nice);
+ nicenum(dd->dd_quota, nice);
+ (void) printf("\t\tquota = %s\n", nice);
+ nicenum(dd->dd_reserved, nice);
+ (void) printf("\t\treserved = %s\n", nice);
+ (void) printf("\t\tprops_zapobj = %llu\n",
+ (u_longlong_t)dd->dd_props_zapobj);
+ (void) printf("\t\tdeleg_zapobj = %llu\n",
+ (u_longlong_t)dd->dd_deleg_zapobj);
+ (void) printf("\t\tflags = %llx\n",
+ (u_longlong_t)dd->dd_flags);
+
+#define DO(which) \
+ nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
+ (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
+ DO(HEAD);
+ DO(SNAP);
+ DO(CHILD);
+ DO(CHILD_RSRV);
+ DO(REFRSRV);
+#undef DO
+}
+
+/*ARGSUSED*/
+static void
+dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
+{
+ dsl_dataset_phys_t *ds = data;
+ time_t crtime;
+ char used[6], compressed[6], uncompressed[6], unique[6];
+ char blkbuf[BP_SPRINTF_LEN];
+
+ if (ds == NULL)
+ return;
+
+ ASSERT(size == sizeof (*ds));
+ crtime = ds->ds_creation_time;
+ nicenum(ds->ds_used_bytes, used);
+ nicenum(ds->ds_compressed_bytes, compressed);
+ nicenum(ds->ds_uncompressed_bytes, uncompressed);
+ nicenum(ds->ds_unique_bytes, unique);
+ sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp);
+
+ (void) printf("\t\tdir_obj = %llu\n",
+ (u_longlong_t)ds->ds_dir_obj);
+ (void) printf("\t\tprev_snap_obj = %llu\n",
+ (u_longlong_t)ds->ds_prev_snap_obj);
+ (void) printf("\t\tprev_snap_txg = %llu\n",
+ (u_longlong_t)ds->ds_prev_snap_txg);
+ (void) printf("\t\tnext_snap_obj = %llu\n",
+ (u_longlong_t)ds->ds_next_snap_obj);
+ (void) printf("\t\tsnapnames_zapobj = %llu\n",
+ (u_longlong_t)ds->ds_snapnames_zapobj);
+ (void) printf("\t\tnum_children = %llu\n",
+ (u_longlong_t)ds->ds_num_children);
+ (void) printf("\t\tcreation_time = %s", ctime(&crtime));
+ (void) printf("\t\tcreation_txg = %llu\n",
+ (u_longlong_t)ds->ds_creation_txg);
+ (void) printf("\t\tdeadlist_obj = %llu\n",
+ (u_longlong_t)ds->ds_deadlist_obj);
+ (void) printf("\t\tused_bytes = %s\n", used);
+ (void) printf("\t\tcompressed_bytes = %s\n", compressed);
+ (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
+ (void) printf("\t\tunique = %s\n", unique);
+ (void) printf("\t\tfsid_guid = %llu\n",
+ (u_longlong_t)ds->ds_fsid_guid);
+ (void) printf("\t\tguid = %llu\n",
+ (u_longlong_t)ds->ds_guid);
+ (void) printf("\t\tflags = %llx\n",
+ (u_longlong_t)ds->ds_flags);
+ (void) printf("\t\tnext_clones_obj = %llu\n",
+ (u_longlong_t)ds->ds_next_clones_obj);
+ (void) printf("\t\tprops_obj = %llu\n",
+ (u_longlong_t)ds->ds_props_obj);
+ (void) printf("\t\tbp = %s\n", blkbuf);
+}
+
+static void
+dump_bplist(objset_t *mos, uint64_t object, char *name)
+{
+ bplist_t bpl = { 0 };
+ blkptr_t blk, *bp = &blk;
+ uint64_t itor = 0;
+ char bytes[6];
+ char comp[6];
+ char uncomp[6];
+
+ if (dump_opt['d'] < 3)
+ return;
+
+ mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL);
+ VERIFY(0 == bplist_open(&bpl, mos, object));
+ if (bplist_empty(&bpl)) {
+ bplist_close(&bpl);
+ mutex_destroy(&bpl.bpl_lock);
+ return;
+ }
+
+ nicenum(bpl.bpl_phys->bpl_bytes, bytes);
+ if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) {
+ nicenum(bpl.bpl_phys->bpl_comp, comp);
+ nicenum(bpl.bpl_phys->bpl_uncomp, uncomp);
+ (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n",
+ name, (u_longlong_t)bpl.bpl_phys->bpl_entries,
+ bytes, comp, uncomp);
+ } else {
+ (void) printf("\n %s: %llu entries, %s\n",
+ name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes);
+ }
+
+ if (dump_opt['d'] < 5) {
+ bplist_close(&bpl);
+ mutex_destroy(&bpl.bpl_lock);
+ return;
+ }
+
+ (void) printf("\n");
+
+ while (bplist_iterate(&bpl, &itor, bp) == 0) {
+ char blkbuf[BP_SPRINTF_LEN];
+
+ ASSERT(bp->blk_birth != 0);
+ sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
+ (void) printf("\tItem %3llu: %s\n",
+ (u_longlong_t)itor - 1, blkbuf);
+ }
+
+ bplist_close(&bpl);
+ mutex_destroy(&bpl.bpl_lock);
+}
+
+static avl_tree_t idx_tree;
+static avl_tree_t domain_tree;
+static boolean_t fuid_table_loaded;
+
+static void
+fuid_table_destroy()
+{
+ if (fuid_table_loaded) {
+ zfs_fuid_table_destroy(&idx_tree, &domain_tree);
+ fuid_table_loaded = B_FALSE;
+ }
+}
+
+/*
+ * print uid or gid information.
+ * For normal POSIX id just the id is printed in decimal format.
+ * For CIFS files with FUID the fuid is printed in hex followed by
+ * the doman-rid string.
+ */
+static void
+print_idstr(uint64_t id, const char *id_type)
+{
+ if (FUID_INDEX(id)) {
+ char *domain;
+
+ domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
+ (void) printf("\t%s %llx [%s-%d]\n", id_type,
+ (u_longlong_t)id, domain, (int)FUID_RID(id));
+ } else {
+ (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
+ }
+
+}
+
+static void
+dump_uidgid(objset_t *os, znode_phys_t *zp)
+{
+ uint32_t uid_idx, gid_idx;
+
+ uid_idx = FUID_INDEX(zp->zp_uid);
+ gid_idx = FUID_INDEX(zp->zp_gid);
+
+ /* Load domain table, if not already loaded */
+ if (!fuid_table_loaded && (uid_idx || gid_idx)) {
+ uint64_t fuid_obj;
+
+ /* first find the fuid object. It lives in the master node */
+ VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
+ 8, 1, &fuid_obj) == 0);
+ (void) zfs_fuid_table_load(os, fuid_obj,
+ &idx_tree, &domain_tree);
+ fuid_table_loaded = B_TRUE;
+ }
+
+ print_idstr(zp->zp_uid, "uid");
+ print_idstr(zp->zp_gid, "gid");
+}
+
+/*ARGSUSED*/
+static void
+dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
+{
+ znode_phys_t *zp = data;
+ time_t z_crtime, z_atime, z_mtime, z_ctime;
+ char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
+ int error;
+
+ ASSERT(size >= sizeof (znode_phys_t));
+
+ error = zfs_obj_to_path(os, object, path, sizeof (path));
+ if (error != 0) {
+ (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
+ (u_longlong_t)object);
+ }
+
+ if (dump_opt['d'] < 3) {
+ (void) printf("\t%s\n", path);
+ return;
+ }
+
+ z_crtime = (time_t)zp->zp_crtime[0];
+ z_atime = (time_t)zp->zp_atime[0];
+ z_mtime = (time_t)zp->zp_mtime[0];
+ z_ctime = (time_t)zp->zp_ctime[0];
+
+ (void) printf("\tpath %s\n", path);
+ dump_uidgid(os, zp);
+ (void) printf("\tatime %s", ctime(&z_atime));
+ (void) printf("\tmtime %s", ctime(&z_mtime));
+ (void) printf("\tctime %s", ctime(&z_ctime));
+ (void) printf("\tcrtime %s", ctime(&z_crtime));
+ (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen);
+ (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode);
+ (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size);
+ (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent);
+ (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links);
+ (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr);
+ (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev);
+}
+
+/*ARGSUSED*/
+static void
+dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
+{
+}
+
+/*ARGSUSED*/
+static void
+dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
+{
+}
+
+static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = {
+ dump_none, /* unallocated */
+ dump_zap, /* object directory */
+ dump_uint64, /* object array */
+ dump_none, /* packed nvlist */
+ dump_packed_nvlist, /* packed nvlist size */
+ dump_none, /* bplist */
+ dump_none, /* bplist header */
+ dump_none, /* SPA space map header */
+ dump_none, /* SPA space map */
+ dump_none, /* ZIL intent log */
+ dump_dnode, /* DMU dnode */
+ dump_dmu_objset, /* DMU objset */
+ dump_dsl_dir, /* DSL directory */
+ dump_zap, /* DSL directory child map */
+ dump_zap, /* DSL dataset snap map */
+ dump_zap, /* DSL props */
+ dump_dsl_dataset, /* DSL dataset */
+ dump_znode, /* ZFS znode */
+ dump_acl, /* ZFS V0 ACL */
+ dump_uint8, /* ZFS plain file */
+ dump_zpldir, /* ZFS directory */
+ dump_zap, /* ZFS master node */
+ dump_zap, /* ZFS delete queue */
+ dump_uint8, /* zvol object */
+ dump_zap, /* zvol prop */
+ dump_uint8, /* other uint8[] */
+ dump_uint64, /* other uint64[] */
+ dump_zap, /* other ZAP */
+ dump_zap, /* persistent error log */
+ dump_uint8, /* SPA history */
+ dump_uint64, /* SPA history offsets */
+ dump_zap, /* Pool properties */
+ dump_zap, /* DSL permissions */
+ dump_acl, /* ZFS ACL */
+ dump_uint8, /* ZFS SYSACL */
+ dump_none, /* FUID nvlist */
+ dump_packed_nvlist, /* FUID nvlist size */
+ dump_zap, /* DSL dataset next clones */
+ dump_zap, /* DSL scrub queue */
+};
+
+static void
+dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
+{
+ dmu_buf_t *db = NULL;
+ dmu_object_info_t doi;
+ dnode_t *dn;
+ void *bonus = NULL;
+ size_t bsize = 0;
+ char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6];
+ char aux[50];
+ int error;
+
+ if (*print_header) {
+ (void) printf("\n Object lvl iblk dblk lsize"
+ " asize type\n");
+ *print_header = 0;
+ }
+
+ if (object == 0) {
+ dn = os->os->os_meta_dnode;
+ } else {
+ error = dmu_bonus_hold(os, object, FTAG, &db);
+ if (error)
+ fatal("dmu_bonus_hold(%llu) failed, errno %u",
+ object, error);
+ bonus = db->db_data;
+ bsize = db->db_size;
+ dn = ((dmu_buf_impl_t *)db)->db_dnode;
+ }
+ dmu_object_info_from_dnode(dn, &doi);
+
+ nicenum(doi.doi_metadata_block_size, iblk);
+ nicenum(doi.doi_data_block_size, dblk);
+ nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1),
+ lsize);
+ nicenum(doi.doi_physical_blks << 9, asize);
+ nicenum(doi.doi_bonus_size, bonus_size);
+
+ aux[0] = '\0';
+
+ if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
+ (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
+ zio_checksum_table[doi.doi_checksum].ci_name);
+ }
+
+ if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
+ (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
+ zio_compress_table[doi.doi_compress].ci_name);
+ }
+
+ (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n",
+ (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize,
+ asize, dmu_ot[doi.doi_type].ot_name, aux);
+
+ if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
+ (void) printf("%10s %3s %5s %5s %5s %5s %s\n",
+ "", "", "", "", bonus_size, "bonus",
+ dmu_ot[doi.doi_bonus_type].ot_name);
+ }
+
+ if (verbosity >= 4) {
+ object_viewer[doi.doi_bonus_type](os, object, bonus, bsize);
+ object_viewer[doi.doi_type](os, object, NULL, 0);
+ *print_header = 1;
+ }
+
+ if (verbosity >= 5)
+ dump_indirect(dn);
+
+ if (verbosity >= 5) {
+ /*
+ * Report the list of segments that comprise the object.
+ */
+ uint64_t start = 0;
+ uint64_t end;
+ uint64_t blkfill = 1;
+ int minlvl = 1;
+
+ if (dn->dn_type == DMU_OT_DNODE) {
+ minlvl = 0;
+ blkfill = DNODES_PER_BLOCK;
+ }
+
+ for (;;) {
+ error = dnode_next_offset(dn,
+ 0, &start, minlvl, blkfill, 0);
+ if (error)
+ break;
+ end = start;
+ error = dnode_next_offset(dn,
+ DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
+ nicenum(end - start, segsize);
+ (void) printf("\t\tsegment [%016llx, %016llx)"
+ " size %5s\n", (u_longlong_t)start,
+ (u_longlong_t)end, segsize);
+ if (error)
+ break;
+ start = end;
+ }
+ }
+
+ if (db != NULL)
+ dmu_buf_rele(db, FTAG);
+}
+
+static char *objset_types[DMU_OST_NUMTYPES] = {
+ "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
+
+static void
+dump_dir(objset_t *os)
+{
+ dmu_objset_stats_t dds;
+ uint64_t object, object_count;
+ uint64_t refdbytes, usedobjs, scratch;
+ char numbuf[8];
+ char blkbuf[BP_SPRINTF_LEN];
+ char osname[MAXNAMELEN];
+ char *type = "UNKNOWN";
+ int verbosity = dump_opt['d'];
+ int print_header = 1;
+ int i, error;
+
+ dmu_objset_fast_stat(os, &dds);
+
+ if (dds.dds_type < DMU_OST_NUMTYPES)
+ type = objset_types[dds.dds_type];
+
+ if (dds.dds_type == DMU_OST_META) {
+ dds.dds_creation_txg = TXG_INITIAL;
+ usedobjs = os->os->os_rootbp->blk_fill;
+ refdbytes = os->os->os_spa->spa_dsl_pool->
+ dp_mos_dir->dd_phys->dd_used_bytes;
+ } else {
+ dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
+ }
+
+ ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill);
+
+ nicenum(refdbytes, numbuf);
+
+ if (verbosity >= 4) {
+ (void) strcpy(blkbuf, ", rootbp ");
+ sprintf_blkptr(blkbuf + strlen(blkbuf),
+ BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp);
+ } else {
+ blkbuf[0] = '\0';
+ }
+
+ dmu_objset_name(os, osname);
+
+ (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
+ "%s, %llu objects%s\n",
+ osname, type, (u_longlong_t)dmu_objset_id(os),
+ (u_longlong_t)dds.dds_creation_txg,
+ numbuf, (u_longlong_t)usedobjs, blkbuf);
+
+ dump_intent_log(dmu_objset_zil(os));
+
+ if (dmu_objset_ds(os) != NULL)
+ dump_bplist(dmu_objset_pool(os)->dp_meta_objset,
+ dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist");
+
+ if (verbosity < 2)
+ return;
+
+ if (os->os->os_rootbp->blk_birth == 0)
+ return;
+
+ if (zopt_objects != 0) {
+ for (i = 0; i < zopt_objects; i++)
+ dump_object(os, zopt_object[i], verbosity,
+ &print_header);
+ (void) printf("\n");
+ return;
+ }
+
+ dump_object(os, 0, verbosity, &print_header);
+ object_count = 1;
+
+ object = 0;
+ while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
+ dump_object(os, object, verbosity, &print_header);
+ object_count++;
+ }
+
+ ASSERT3U(object_count, ==, usedobjs);
+
+ (void) printf("\n");
+
+ if (error != ESRCH)
+ fatal("dmu_object_next() = %d", error);
+}
+
+static void
+dump_uberblock(uberblock_t *ub)
+{
+ time_t timestamp = ub->ub_timestamp;
+
+ (void) printf("Uberblock\n\n");
+ (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
+ (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
+ (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
+ (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
+ (void) printf("\ttimestamp = %llu UTC = %s",
+ (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
+ if (dump_opt['u'] >= 3) {
+ char blkbuf[BP_SPRINTF_LEN];
+ sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp);
+ (void) printf("\trootbp = %s\n", blkbuf);
+ }
+ (void) printf("\n");
+}
+
+static void
+dump_config(const char *pool)
+{
+ spa_t *spa = NULL;
+
+ mutex_enter(&spa_namespace_lock);
+ while ((spa = spa_next(spa)) != NULL) {
+ if (pool == NULL)
+ (void) printf("%s\n", spa_name(spa));
+ if (pool == NULL || strcmp(pool, spa_name(spa)) == 0)
+ dump_nvlist(spa->spa_config, 4);
+ }
+ mutex_exit(&spa_namespace_lock);
+}
+
+static void
+dump_cachefile(const char *cachefile)
+{
+ int fd;
+ struct stat64 statbuf;
+ char *buf;
+ nvlist_t *config;
+
+ if ((fd = open64(cachefile, O_RDONLY)) < 0) {
+ (void) printf("cannot open '%s': %s\n", cachefile,
+ strerror(errno));
+ exit(1);
+ }
+
+ if (fstat64(fd, &statbuf) != 0) {
+ (void) printf("failed to stat '%s': %s\n", cachefile,
+ strerror(errno));
+ exit(1);
+ }
+
+ if ((buf = malloc(statbuf.st_size)) == NULL) {
+ (void) fprintf(stderr, "failed to allocate %llu bytes\n",
+ (u_longlong_t)statbuf.st_size);
+ exit(1);
+ }
+
+ if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
+ (void) fprintf(stderr, "failed to read %llu bytes\n",
+ (u_longlong_t)statbuf.st_size);
+ exit(1);
+ }
+
+ (void) close(fd);
+
+ if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
+ (void) fprintf(stderr, "failed to unpack nvlist\n");
+ exit(1);
+ }
+
+ free(buf);
+
+ dump_nvlist(config, 0);
+
+ nvlist_free(config);
+}
+
+static void
+dump_label(const char *dev)
+{
+ int fd;
+ vdev_label_t label;
+ char *buf = label.vl_vdev_phys.vp_nvlist;
+ size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
+ struct stat64 statbuf;
+ uint64_t psize;
+ int l;
+
+ if ((fd = open64(dev, O_RDONLY)) < 0) {
+ (void) printf("cannot open '%s': %s\n", dev, strerror(errno));
+ exit(1);
+ }
+
+ if (fstat64(fd, &statbuf) != 0) {
+ (void) printf("failed to stat '%s': %s\n", dev,
+ strerror(errno));
+ exit(1);
+ }
+
+ psize = statbuf.st_size;
+ psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
+
+ for (l = 0; l < VDEV_LABELS; l++) {
+
+ nvlist_t *config = NULL;
+
+ (void) printf("--------------------------------------------\n");
+ (void) printf("LABEL %d\n", l);
+ (void) printf("--------------------------------------------\n");
+
+ if (pread64(fd, &label, sizeof (label),
+ vdev_label_offset(psize, l, 0)) != sizeof (label)) {
+ (void) printf("failed to read label %d\n", l);
+ continue;
+ }
+
+ if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
+ (void) printf("failed to unpack label %d\n", l);
+ continue;
+ }
+ dump_nvlist(config, 4);
+ nvlist_free(config);
+ }
+}
+
+/*ARGSUSED*/
+static int
+dump_one_dir(char *dsname, void *arg)
+{
+ int error;
+ objset_t *os;
+
+ error = dmu_objset_open(dsname, DMU_OST_ANY,
+ DS_MODE_USER | DS_MODE_READONLY, &os);
+ if (error) {
+ (void) printf("Could not open %s\n", dsname);
+ return (0);
+ }
+ dump_dir(os);
+ dmu_objset_close(os);
+ fuid_table_destroy();
+ return (0);
+}
+
+static void
+zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
+{
+ vdev_t *vd = sm->sm_ppd;
+
+ (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
+ (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
+}
+
+/* ARGSUSED */
+static void
+zdb_space_map_load(space_map_t *sm)
+{
+}
+
+static void
+zdb_space_map_unload(space_map_t *sm)
+{
+ space_map_vacate(sm, zdb_leak, sm);
+}
+
+/* ARGSUSED */
+static void
+zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
+{
+}
+
+static space_map_ops_t zdb_space_map_ops = {
+ zdb_space_map_load,
+ zdb_space_map_unload,
+ NULL, /* alloc */
+ zdb_space_map_claim,
+ NULL /* free */
+};
+
+static void
+zdb_leak_init(spa_t *spa)
+{
+ vdev_t *rvd = spa->spa_root_vdev;
+
+ for (int c = 0; c < rvd->vdev_children; c++) {
+ vdev_t *vd = rvd->vdev_child[c];
+ for (int m = 0; m < vd->vdev_ms_count; m++) {
+ metaslab_t *msp = vd->vdev_ms[m];
+ mutex_enter(&msp->ms_lock);
+ VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops,
+ SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0);
+ msp->ms_map.sm_ppd = vd;
+ mutex_exit(&msp->ms_lock);
+ }
+ }
+}
+
+static void
+zdb_leak_fini(spa_t *spa)
+{
+ vdev_t *rvd = spa->spa_root_vdev;
+
+ for (int c = 0; c < rvd->vdev_children; c++) {
+ vdev_t *vd = rvd->vdev_child[c];
+ for (int m = 0; m < vd->vdev_ms_count; m++) {
+ metaslab_t *msp = vd->vdev_ms[m];
+ mutex_enter(&msp->ms_lock);
+ space_map_unload(&msp->ms_map);
+ mutex_exit(&msp->ms_lock);
+ }
+ }
+}
+
+/*
+ * Verify that the sum of the sizes of all blocks in the pool adds up
+ * to the SPA's sa_alloc total.
+ */
+typedef struct zdb_blkstats {
+ uint64_t zb_asize;
+ uint64_t zb_lsize;
+ uint64_t zb_psize;
+ uint64_t zb_count;
+} zdb_blkstats_t;
+
+#define DMU_OT_DEFERRED DMU_OT_NONE
+#define DMU_OT_TOTAL DMU_OT_NUMTYPES
+
+#define ZB_TOTAL DN_MAX_LEVELS
+
+typedef struct zdb_cb {
+ zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1];
+ uint64_t zcb_errors[256];
+ int zcb_readfails;
+ int zcb_haderrors;
+} zdb_cb_t;
+
+static void
+zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type)
+{
+ for (int i = 0; i < 4; i++) {
+ int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
+ int t = (i & 1) ? type : DMU_OT_TOTAL;
+ zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
+
+ zb->zb_asize += BP_GET_ASIZE(bp);
+ zb->zb_lsize += BP_GET_LSIZE(bp);
+ zb->zb_psize += BP_GET_PSIZE(bp);
+ zb->zb_count++;
+ }
+
+ if (dump_opt['S']) {
+ boolean_t print_sig;
+
+ print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 &&
+ BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS);
+
+ if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg)
+ print_sig = B_FALSE;
+
+ if (print_sig) {
+ (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t"
+ "%llx:%llx:%llx:%llx\n",
+ (u_longlong_t)BP_GET_LEVEL(bp),
+ (longlong_t)BP_GET_PSIZE(bp),
+ (longlong_t)BP_GET_NDVAS(bp),
+ dmu_ot[BP_GET_TYPE(bp)].ot_name,
+ zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
+ zio_compress_table[BP_GET_COMPRESS(bp)].ci_name,
+ (u_longlong_t)bp->blk_cksum.zc_word[0],
+ (u_longlong_t)bp->blk_cksum.zc_word[1],
+ (u_longlong_t)bp->blk_cksum.zc_word[2],
+ (u_longlong_t)bp->blk_cksum.zc_word[3]);
+ }
+ }
+
+ VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp,
+ NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0);
+}
+
+static int
+zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb,
+ const dnode_phys_t *dnp, void *arg)
+{
+ zdb_cb_t *zcb = arg;
+ char blkbuf[BP_SPRINTF_LEN];
+
+ if (bp == NULL)
+ return (0);
+
+ zdb_count_block(spa, zcb, bp, BP_GET_TYPE(bp));
+
+ if (dump_opt['c'] || dump_opt['S']) {
+ int ioerr, size;
+ void *data;
+
+ size = BP_GET_LSIZE(bp);
+ data = malloc(size);
+ ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
+ NULL, NULL, ZIO_PRIORITY_ASYNC_READ,
+ ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb));
+ free(data);
+
+ /* We expect io errors on intent log */
+ if (ioerr && BP_GET_TYPE(bp) != DMU_OT_INTENT_LOG) {
+ zcb->zcb_haderrors = 1;
+ zcb->zcb_errors[ioerr]++;
+
+ if (dump_opt['b'] >= 2)
+ sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
+ else
+ blkbuf[0] = '\0';
+
+ if (!dump_opt['S']) {
+ (void) printf("zdb_blkptr_cb: "
+ "Got error %d reading "
+ "<%llu, %llu, %lld, %llx> %s -- skipping\n",
+ ioerr,
+ (u_longlong_t)zb->zb_objset,
+ (u_longlong_t)zb->zb_object,
+ (u_longlong_t)zb->zb_level,
+ (u_longlong_t)zb->zb_blkid,
+ blkbuf);
+ }
+ }
+ }
+
+ zcb->zcb_readfails = 0;
+
+ if (dump_opt['b'] >= 4) {
+ sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
+ (void) printf("objset %llu object %llu offset 0x%llx %s\n",
+ (u_longlong_t)zb->zb_objset,
+ (u_longlong_t)zb->zb_object,
+ (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid),
+ blkbuf);
+ }
+
+ return (0);
+}
+
+static int
+dump_block_stats(spa_t *spa)
+{
+ zdb_cb_t zcb = { 0 };
+ zdb_blkstats_t *zb, *tzb;
+ uint64_t alloc, space, logalloc;
+ vdev_t *rvd = spa->spa_root_vdev;
+ int leaks = 0;
+ int c, e;
+
+ if (!dump_opt['S']) {
+ (void) printf("\nTraversing all blocks to %sverify"
+ " nothing leaked ...\n",
+ dump_opt['c'] ? "verify checksums and " : "");
+ }
+
+ /*
+ * Load all space maps as SM_ALLOC maps, then traverse the pool
+ * claiming each block we discover. If the pool is perfectly
+ * consistent, the space maps will be empty when we're done.
+ * Anything left over is a leak; any block we can't claim (because
+ * it's not part of any space map) is a double allocation,
+ * reference to a freed block, or an unclaimed log block.
+ */
+ zdb_leak_init(spa);
+
+ /*
+ * If there's a deferred-free bplist, process that first.
+ */
+ if (spa->spa_sync_bplist_obj != 0) {
+ bplist_t *bpl = &spa->spa_sync_bplist;
+ blkptr_t blk;
+ uint64_t itor = 0;
+
+ VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset,
+ spa->spa_sync_bplist_obj));
+
+ while (bplist_iterate(bpl, &itor, &blk) == 0) {
+ if (dump_opt['b'] >= 4) {
+ char blkbuf[BP_SPRINTF_LEN];
+ sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk);
+ (void) printf("[%s] %s\n",
+ "deferred free", blkbuf);
+ }
+ zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED);
+ }
+
+ bplist_close(bpl);
+ }
+
+ zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb);
+
+ if (zcb.zcb_haderrors && !dump_opt['S']) {
+ (void) printf("\nError counts:\n\n");
+ (void) printf("\t%5s %s\n", "errno", "count");
+ for (e = 0; e < 256; e++) {
+ if (zcb.zcb_errors[e] != 0) {
+ (void) printf("\t%5d %llu\n",
+ e, (u_longlong_t)zcb.zcb_errors[e]);
+ }
+ }
+ }
+
+ /*
+ * Report any leaked segments.
+ */
+ zdb_leak_fini(spa);
+
+ /*
+ * If we're interested in printing out the blkptr signatures,
+ * return now as we don't print out anything else (including
+ * errors and leaks).
+ */
+ if (dump_opt['S'])
+ return (zcb.zcb_haderrors ? 3 : 0);
+
+ alloc = spa_get_alloc(spa);
+ space = spa_get_space(spa);
+
+ /*
+ * Log blocks allocated from a separate log device don't count
+ * as part of the normal pool space; factor them in here.
+ */
+ logalloc = 0;
+
+ for (c = 0; c < rvd->vdev_children; c++)
+ if (rvd->vdev_child[c]->vdev_islog)
+ logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc;
+
+ tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL];
+
+ if (tzb->zb_asize == alloc + logalloc) {
+ (void) printf("\n\tNo leaks (block sum matches space"
+ " maps exactly)\n");
+ } else {
+ (void) printf("block traversal size %llu != alloc %llu "
+ "(leaked %lld)\n",
+ (u_longlong_t)tzb->zb_asize,
+ (u_longlong_t)alloc + logalloc,
+ (u_longlong_t)(alloc + logalloc - tzb->zb_asize));
+ leaks = 1;
+ }
+
+ if (tzb->zb_count == 0)
+ return (2);
+
+ (void) printf("\n");
+ (void) printf("\tbp count: %10llu\n",
+ (u_longlong_t)tzb->zb_count);
+ (void) printf("\tbp logical: %10llu\t avg: %6llu\n",
+ (u_longlong_t)tzb->zb_lsize,
+ (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
+ (void) printf("\tbp physical: %10llu\t avg:"
+ " %6llu\tcompression: %6.2f\n",
+ (u_longlong_t)tzb->zb_psize,
+ (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
+ (double)tzb->zb_lsize / tzb->zb_psize);
+ (void) printf("\tbp allocated: %10llu\t avg:"
+ " %6llu\tcompression: %6.2f\n",
+ (u_longlong_t)tzb->zb_asize,
+ (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
+ (double)tzb->zb_lsize / tzb->zb_asize);
+ (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n",
+ (u_longlong_t)alloc, 100.0 * alloc / space);
+
+ if (dump_opt['b'] >= 2) {
+ int l, t, level;
+ (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
+ "\t avg\t comp\t%%Total\tType\n");
+
+ for (t = 0; t <= DMU_OT_NUMTYPES; t++) {
+ char csize[6], lsize[6], psize[6], asize[6], avg[6];
+ char *typename;
+
+ typename = t == DMU_OT_DEFERRED ? "deferred free" :
+ t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name;
+
+ if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
+ (void) printf("%6s\t%5s\t%5s\t%5s"
+ "\t%5s\t%5s\t%6s\t%s\n",
+ "-",
+ "-",
+ "-",
+ "-",
+ "-",
+ "-",
+ "-",
+ typename);
+ continue;
+ }
+
+ for (l = ZB_TOTAL - 1; l >= -1; l--) {
+ level = (l == -1 ? ZB_TOTAL : l);
+ zb = &zcb.zcb_type[level][t];
+
+ if (zb->zb_asize == 0)
+ continue;
+
+ if (dump_opt['b'] < 3 && level != ZB_TOTAL)
+ continue;
+
+ if (level == 0 && zb->zb_asize ==
+ zcb.zcb_type[ZB_TOTAL][t].zb_asize)
+ continue;
+
+ nicenum(zb->zb_count, csize);
+ nicenum(zb->zb_lsize, lsize);
+ nicenum(zb->zb_psize, psize);
+ nicenum(zb->zb_asize, asize);
+ nicenum(zb->zb_asize / zb->zb_count, avg);
+
+ (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
+ "\t%5.2f\t%6.2f\t",
+ csize, lsize, psize, asize, avg,
+ (double)zb->zb_lsize / zb->zb_psize,
+ 100.0 * zb->zb_asize / tzb->zb_asize);
+
+ if (level == ZB_TOTAL)
+ (void) printf("%s\n", typename);
+ else
+ (void) printf(" L%d %s\n",
+ level, typename);
+ }
+ }
+ }
+
+ (void) printf("\n");
+
+ if (leaks)
+ return (2);
+
+ if (zcb.zcb_haderrors)
+ return (3);
+
+ return (0);
+}
+
+static void
+dump_zpool(spa_t *spa)
+{
+ dsl_pool_t *dp = spa_get_dsl(spa);
+ int rc = 0;
+
+ if (dump_opt['u'])
+ dump_uberblock(&spa->spa_uberblock);
+
+ if (dump_opt['d'] || dump_opt['i']) {
+ dump_dir(dp->dp_meta_objset);
+ if (dump_opt['d'] >= 3) {
+ dump_bplist(dp->dp_meta_objset,
+ spa->spa_sync_bplist_obj, "Deferred frees");
+ dump_dtl(spa->spa_root_vdev, 0);
+ dump_metaslabs(spa);
+ }
+ (void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL,
+ DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
+ }
+
+ if (dump_opt['b'] || dump_opt['c'] || dump_opt['S'])
+ rc = dump_block_stats(spa);
+
+ if (dump_opt['s'])
+ show_pool_stats(spa);
+
+ if (rc != 0)
+ exit(rc);
+}
+
+#define ZDB_FLAG_CHECKSUM 0x0001
+#define ZDB_FLAG_DECOMPRESS 0x0002
+#define ZDB_FLAG_BSWAP 0x0004
+#define ZDB_FLAG_GBH 0x0008
+#define ZDB_FLAG_INDIRECT 0x0010
+#define ZDB_FLAG_PHYS 0x0020
+#define ZDB_FLAG_RAW 0x0040
+#define ZDB_FLAG_PRINT_BLKPTR 0x0080
+
+int flagbits[256];
+
+static void
+zdb_print_blkptr(blkptr_t *bp, int flags)
+{
+ dva_t *dva = bp->blk_dva;
+ int d;
+
+ if (flags & ZDB_FLAG_BSWAP)
+ byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
+ /*
+ * Super-ick warning: This code is also duplicated in
+ * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code
+ * replication, too.
+ */
+ for (d = 0; d < BP_GET_NDVAS(bp); d++) {
+ (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d,
+ (longlong_t)DVA_GET_VDEV(&dva[d]),
+ (longlong_t)DVA_GET_OFFSET(&dva[d]));
+ (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t"
+ "ASIZE: %llx\n", d,
+ DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE",
+ (longlong_t)DVA_GET_GRID(&dva[d]),
+ (longlong_t)DVA_GET_ASIZE(&dva[d]));
+ (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d,
+ (u_longlong_t)DVA_GET_VDEV(&dva[d]),
+ (longlong_t)DVA_GET_OFFSET(&dva[d]),
+ (longlong_t)BP_GET_PSIZE(bp),
+ BP_SHOULD_BYTESWAP(bp) ? "e" : "",
+ !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ?
+ "d" : "",
+ DVA_GET_GANG(&dva[d]) ? "g" : "",
+ BP_GET_COMPRESS(bp) != 0 ? "d" : "");
+ }
+ (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n",
+ (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp));
+ (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n",
+ BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG",
+ dmu_ot[BP_GET_TYPE(bp)].ot_name);
+ (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n",
+ (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp),
+ (u_longlong_t)bp->blk_fill);
+ (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n",
+ zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
+ zio_compress_table[BP_GET_COMPRESS(bp)].ci_name);
+ (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n",
+ (u_longlong_t)bp->blk_cksum.zc_word[0],
+ (u_longlong_t)bp->blk_cksum.zc_word[1],
+ (u_longlong_t)bp->blk_cksum.zc_word[2],
+ (u_longlong_t)bp->blk_cksum.zc_word[3]);
+}
+
+static void
+zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
+{
+ int i;
+
+ for (i = 0; i < nbps; i++)
+ zdb_print_blkptr(&bp[i], flags);
+}
+
+static void
+zdb_dump_gbh(void *buf, int flags)
+{
+ zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
+}
+
+static void
+zdb_dump_block_raw(void *buf, uint64_t size, int flags)
+{
+ if (flags & ZDB_FLAG_BSWAP)
+ byteswap_uint64_array(buf, size);
+ (void) write(2, buf, size);
+}
+
+static void
+zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
+{
+ uint64_t *d = (uint64_t *)buf;
+ int nwords = size / sizeof (uint64_t);
+ int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
+ int i, j;
+ char *hdr, *c;
+
+
+ if (do_bswap)
+ hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
+ else
+ hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
+
+ (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
+
+ for (i = 0; i < nwords; i += 2) {
+ (void) printf("%06llx: %016llx %016llx ",
+ (u_longlong_t)(i * sizeof (uint64_t)),
+ (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
+ (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
+
+ c = (char *)&d[i];
+ for (j = 0; j < 2 * sizeof (uint64_t); j++)
+ (void) printf("%c", isprint(c[j]) ? c[j] : '.');
+ (void) printf("\n");
+ }
+}
+
+/*
+ * There are two acceptable formats:
+ * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
+ * child[.child]* - For example: 0.1.1
+ *
+ * The second form can be used to specify arbitrary vdevs anywhere
+ * in the heirarchy. For example, in a pool with a mirror of
+ * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
+ */
+static vdev_t *
+zdb_vdev_lookup(vdev_t *vdev, char *path)
+{
+ char *s, *p, *q;
+ int i;
+
+ if (vdev == NULL)
+ return (NULL);
+
+ /* First, assume the x.x.x.x format */
+ i = (int)strtoul(path, &s, 10);
+ if (s == path || (s && *s != '.' && *s != '\0'))
+ goto name;
+ if (i < 0 || i >= vdev->vdev_children)
+ return (NULL);
+
+ vdev = vdev->vdev_child[i];
+ if (*s == '\0')
+ return (vdev);
+ return (zdb_vdev_lookup(vdev, s+1));
+
+name:
+ for (i = 0; i < vdev->vdev_children; i++) {
+ vdev_t *vc = vdev->vdev_child[i];
+
+ if (vc->vdev_path == NULL) {
+ vc = zdb_vdev_lookup(vc, path);
+ if (vc == NULL)
+ continue;
+ else
+ return (vc);
+ }
+
+ p = strrchr(vc->vdev_path, '/');
+ p = p ? p + 1 : vc->vdev_path;
+ q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
+
+ if (strcmp(vc->vdev_path, path) == 0)
+ return (vc);
+ if (strcmp(p, path) == 0)
+ return (vc);
+ if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
+ return (vc);
+ }
+
+ return (NULL);
+}
+
+/*
+ * Read a block from a pool and print it out. The syntax of the
+ * block descriptor is:
+ *
+ * pool:vdev_specifier:offset:size[:flags]
+ *
+ * pool - The name of the pool you wish to read from
+ * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
+ * offset - offset, in hex, in bytes
+ * size - Amount of data to read, in hex, in bytes
+ * flags - A string of characters specifying options
+ * b: Decode a blkptr at given offset within block
+ * *c: Calculate and display checksums
+ * *d: Decompress data before dumping
+ * e: Byteswap data before dumping
+ * *g: Display data as a gang block header
+ * *i: Display as an indirect block
+ * p: Do I/O to physical offset
+ * r: Dump raw data to stdout
+ *
+ * * = not yet implemented
+ */
+static void
+zdb_read_block(char *thing, spa_t **spap)
+{
+ spa_t *spa = *spap;
+ int flags = 0;
+ uint64_t offset = 0, size = 0, blkptr_offset = 0;
+ zio_t *zio;
+ vdev_t *vd;
+ void *buf;
+ char *s, *p, *dup, *pool, *vdev, *flagstr;
+ int i, error, zio_flags;
+
+ dup = strdup(thing);
+ s = strtok(dup, ":");
+ pool = s ? s : "";
+ s = strtok(NULL, ":");
+ vdev = s ? s : "";
+ s = strtok(NULL, ":");
+ offset = strtoull(s ? s : "", NULL, 16);
+ s = strtok(NULL, ":");
+ size = strtoull(s ? s : "", NULL, 16);
+ s = strtok(NULL, ":");
+ flagstr = s ? s : "";
+
+ s = NULL;
+ if (size == 0)
+ s = "size must not be zero";
+ if (!IS_P2ALIGNED(size, DEV_BSIZE))
+ s = "size must be a multiple of sector size";
+ if (!IS_P2ALIGNED(offset, DEV_BSIZE))
+ s = "offset must be a multiple of sector size";
+ if (s) {
+ (void) printf("Invalid block specifier: %s - %s\n", thing, s);
+ free(dup);
+ return;
+ }
+
+ for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
+ for (i = 0; flagstr[i]; i++) {
+ int bit = flagbits[(uchar_t)flagstr[i]];
+
+ if (bit == 0) {
+ (void) printf("***Invalid flag: %c\n",
+ flagstr[i]);
+ continue;
+ }
+ flags |= bit;
+
+ /* If it's not something with an argument, keep going */
+ if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS |
+ ZDB_FLAG_PRINT_BLKPTR)) == 0)
+ continue;
+
+ p = &flagstr[i + 1];
+ if (bit == ZDB_FLAG_PRINT_BLKPTR)
+ blkptr_offset = strtoull(p, &p, 16);
+ if (*p != ':' && *p != '\0') {
+ (void) printf("***Invalid flag arg: '%s'\n", s);
+ free(dup);
+ return;
+ }
+ }
+ }
+
+ if (spa == NULL || strcmp(spa_name(spa), pool) != 0) {
+ if (spa)
+ spa_close(spa, (void *)zdb_read_block);
+ error = spa_open(pool, spap, (void *)zdb_read_block);
+ if (error)
+ fatal("Failed to open pool '%s': %s",
+ pool, strerror(error));
+ spa = *spap;
+ }
+
+ vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
+ if (vd == NULL) {
+ (void) printf("***Invalid vdev: %s\n", vdev);
+ free(dup);
+ return;
+ } else {
+ if (vd->vdev_path)
+ (void) printf("Found vdev: %s\n", vd->vdev_path);
+ else
+ (void) printf("Found vdev type: %s\n",
+ vd->vdev_ops->vdev_op_type);
+ }
+
+ buf = umem_alloc(size, UMEM_NOFAIL);
+
+ zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
+ ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY;
+
+ spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
+ zio = zio_root(spa, NULL, NULL, 0);
+ /* XXX todo - cons up a BP so RAID-Z will be happy */
+ zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size,
+ ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL));
+ error = zio_wait(zio);
+ spa_config_exit(spa, SCL_STATE, FTAG);
+
+ if (error) {
+ (void) printf("Read of %s failed, error: %d\n", thing, error);
+ goto out;
+ }
+
+ if (flags & ZDB_FLAG_PRINT_BLKPTR)
+ zdb_print_blkptr((blkptr_t *)(void *)
+ ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
+ else if (flags & ZDB_FLAG_RAW)
+ zdb_dump_block_raw(buf, size, flags);
+ else if (flags & ZDB_FLAG_INDIRECT)
+ zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
+ flags);
+ else if (flags & ZDB_FLAG_GBH)
+ zdb_dump_gbh(buf, flags);
+ else
+ zdb_dump_block(thing, buf, size, flags);
+
+out:
+ umem_free(buf, size);
+ free(dup);
+}
+
+static boolean_t
+nvlist_string_match(nvlist_t *config, char *name, char *tgt)
+{
+ char *s;
+
+ if (nvlist_lookup_string(config, name, &s) != 0)
+ return (B_FALSE);
+
+ return (strcmp(s, tgt) == 0);
+}
+
+static boolean_t
+nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt)
+{
+ uint64_t val;
+
+ if (nvlist_lookup_uint64(config, name, &val) != 0)
+ return (B_FALSE);
+
+ return (val == tgt);
+}
+
+static boolean_t
+vdev_child_guid_match(nvlist_t *vdev, uint64_t guid)
+{
+ nvlist_t **child;
+ uint_t c, children;
+
+ verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
+ &child, &children) == 0);
+ for (c = 0; c < children; ++c)
+ if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid))
+ return (B_TRUE);
+ return (B_FALSE);
+}
+
+static boolean_t
+vdev_child_string_match(nvlist_t *vdev, char *tgt)
+{
+ nvlist_t **child;
+ uint_t c, children;
+
+ verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
+ &child, &children) == 0);
+ for (c = 0; c < children; ++c) {
+ if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) ||
+ nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt))
+ return (B_TRUE);
+ }
+ return (B_FALSE);
+}
+
+static boolean_t
+vdev_guid_match(nvlist_t *config, uint64_t guid)
+{
+ nvlist_t *nvroot;
+
+ verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
+ &nvroot) == 0);
+
+ return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) ||
+ vdev_child_guid_match(nvroot, guid));
+}
+
+static boolean_t
+vdev_string_match(nvlist_t *config, char *tgt)
+{
+ nvlist_t *nvroot;
+
+ verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
+ &nvroot) == 0);
+
+ return (vdev_child_string_match(nvroot, tgt));
+}
+
+static boolean_t
+pool_match(nvlist_t *config, char *tgt)
+{
+ uint64_t guid = strtoull(tgt, NULL, 0);
+
+ if (guid != 0) {
+ return (
+ nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) ||
+ vdev_guid_match(config, guid));
+ } else {
+ return (
+ nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) ||
+ vdev_string_match(config, tgt));
+ }
+}
+
+static int
+find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir)
+{
+ nvlist_t *pools;
+ int error = ENOENT;
+ nvlist_t *match = NULL;
+
+ if (vdev_dir != NULL)
+ pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir);
+ else
+ pools = zpool_find_import_activeok(g_zfs, 0, NULL);
+
+ if (pools != NULL) {
+ nvpair_t *elem = NULL;
+
+ while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
+ verify(nvpair_value_nvlist(elem, configp) == 0);
+ if (pool_match(*configp, pool_id)) {
+ if (match != NULL) {
+ (void) fatal(
+ "More than one matching pool - "
+ "specify guid/devid/device path.");
+ } else {
+ match = *configp;
+ error = 0;
+ }
+ }
+ }
+ }
+
+ *configp = error ? NULL : match;
+
+ return (error);
+}
+
+int
+main(int argc, char **argv)
+{
+ int i, c;
+ struct rlimit rl = { 1024, 1024 };
+ spa_t *spa;
+ objset_t *os = NULL;
+ char *endstr;
+ int dump_all = 1;
+ int verbose = 0;
+ int error;
+ int exported = 0;
+ char *vdev_dir = NULL;
+
+ (void) setrlimit(RLIMIT_NOFILE, &rl);
+ (void) enable_extended_FILE_stdio(-1, -1);
+
+ dprintf_setup(&argc, argv);
+
+ while ((c = getopt(argc, argv, "udibcsvCS:U:lRep:")) != -1) {
+ switch (c) {
+ case 'u':
+ case 'd':
+ case 'i':
+ case 'b':
+ case 'c':
+ case 's':
+ case 'C':
+ case 'l':
+ case 'R':
+ dump_opt[c]++;
+ dump_all = 0;
+ break;
+ case 'v':
+ verbose++;
+ break;
+ case 'U':
+ spa_config_path = optarg;
+ break;
+ case 'e':
+ exported = 1;
+ break;
+ case 'p':
+ vdev_dir = optarg;
+ break;
+ case 'S':
+ dump_opt[c]++;
+ dump_all = 0;
+ zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0);
+ if (!zdb_sig_user_data && strncmp(optarg, "all:", 4))
+ usage();
+ endstr = strchr(optarg, ':') + 1;
+ if (strcmp(endstr, "fletcher2") == 0)
+ zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
+ else if (strcmp(endstr, "fletcher4") == 0)
+ zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4;
+ else if (strcmp(endstr, "sha256") == 0)
+ zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
+ else if (strcmp(endstr, "all") == 0)
+ zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
+ else
+ usage();
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+
+ if (vdev_dir != NULL && exported == 0) {
+ (void) fprintf(stderr, "-p option requires use of -e\n");
+ usage();
+ }
+
+ kernel_init(FREAD);
+ g_zfs = libzfs_init();
+ ASSERT(g_zfs != NULL);
+
+ for (c = 0; c < 256; c++) {
+ if (dump_all && c != 'l' && c != 'R')
+ dump_opt[c] = 1;
+ if (dump_opt[c])
+ dump_opt[c] += verbose;
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 1) {
+ if (dump_opt['C']) {
+ dump_cachefile(spa_config_path);
+ return (0);
+ }
+ usage();
+ }
+
+ if (dump_opt['l']) {
+ dump_label(argv[0]);
+ return (0);
+ }
+
+ if (dump_opt['R']) {
+ flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
+ flagbits['c'] = ZDB_FLAG_CHECKSUM;
+ flagbits['d'] = ZDB_FLAG_DECOMPRESS;
+ flagbits['e'] = ZDB_FLAG_BSWAP;
+ flagbits['g'] = ZDB_FLAG_GBH;
+ flagbits['i'] = ZDB_FLAG_INDIRECT;
+ flagbits['p'] = ZDB_FLAG_PHYS;
+ flagbits['r'] = ZDB_FLAG_RAW;
+
+ spa = NULL;
+ while (argv[0]) {
+ zdb_read_block(argv[0], &spa);
+ argv++;
+ argc--;
+ }
+ if (spa)
+ spa_close(spa, (void *)zdb_read_block);
+ return (0);
+ }
+
+ if (dump_opt['C'])
+ dump_config(argv[0]);
+
+ error = 0;
+ if (exported) {
+ /*
+ * Check to see if the name refers to an exported zpool
+ */
+ char *slash;
+ nvlist_t *exported_conf = NULL;
+
+ if ((slash = strchr(argv[0], '/')) != NULL)
+ *slash = '\0';
+
+ error = find_exported_zpool(argv[0], &exported_conf, vdev_dir);
+ if (error == 0) {
+ nvlist_t *nvl = NULL;
+
+ if (vdev_dir != NULL) {
+ if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
+ error = ENOMEM;
+ else if (nvlist_add_string(nvl,
+ zpool_prop_to_name(ZPOOL_PROP_ALTROOT),
+ vdev_dir) != 0)
+ error = ENOMEM;
+ }
+
+ if (error == 0)
+ error = spa_import_faulted(argv[0],
+ exported_conf, nvl);
+
+ nvlist_free(nvl);
+ }
+
+ if (slash != NULL)
+ *slash = '/';
+ }
+
+ if (error == 0) {
+ if (strchr(argv[0], '/') != NULL) {
+ error = dmu_objset_open(argv[0], DMU_OST_ANY,
+ DS_MODE_USER | DS_MODE_READONLY, &os);
+ } else {
+ error = spa_open(argv[0], &spa, FTAG);
+ }
+ }
+
+ if (error)
+ fatal("can't open %s: %s", argv[0], strerror(error));
+
+ argv++;
+ if (--argc > 0) {
+ zopt_objects = argc;
+ zopt_object = calloc(zopt_objects, sizeof (uint64_t));
+ for (i = 0; i < zopt_objects; i++) {
+ errno = 0;
+ zopt_object[i] = strtoull(argv[i], NULL, 0);
+ if (zopt_object[i] == 0 && errno != 0)
+ fatal("bad object number %s: %s",
+ argv[i], strerror(errno));
+ }
+ }
+
+ if (os != NULL) {
+ dump_dir(os);
+ dmu_objset_close(os);
+ } else {
+ dump_zpool(spa);
+ spa_close(spa, FTAG);
+ }
+
+ fuid_table_destroy();
+
+ libzfs_fini(g_zfs);
+ kernel_fini();
+
+ return (0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 21:05:06 +0000