#pragma ident "%Z%%M% %I% %E% SMI"

#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>

#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;

int zdb_advance = ADVANCE_PRE;

zbookmark_t zdb_noread = { 0, 0, ZB_NO_LEVEL, 0 };

libzfs_handle_t *g_zfs;

boolean_t zdb_sig_user_data = B_TRUE;

int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;

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 [-udibcsvL] [-U cachefile_path] [-O order] "

"[-B os:obj:level:blkid] [-S user:cksumalg] "

"dataset [object...]\n"

" %s -C [pool]\n"

" %s -l dev\n"

" %s -R 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, " -L live pool (allows some errors)\n");

(void) fprintf(stderr, " -O [!]<pre|post|prune|data|holes> "

"visitation order\n");

(void) fprintf(stderr, " -U cachefile_path -- use alternate "

"cachefile\n");

(void) fprintf(stderr, " -B objset:object:level:blkid -- "

"simulate bad block\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");

exit(1);

}

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));

}

}

}

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);

}

static void

dump_none(objset_t *os, uint64_t object, void *data, size_t size)

{

}

dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)

{

}

static void

dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)

{

}

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);

}

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;

/*

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 = %s\n\n",

(u_longlong_t)vd->vdev_id, vdev_description(vd));

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, "", vdev_description(vd));

for (ss = avl_first(t); ss; ss = AVL_NEXT(t, ss)) {

/*

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);

}

static void

dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)

{

}

static uint64_t

blkid2offset(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 int

zdb_indirect_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a)

{

zbookmark_t *zb = &bc->bc_bookmark;

blkptr_t *bp = &bc->bc_blkptr;

void *data = bc->bc_data;

dnode_phys_t *dnp = bc->bc_dnode;

char blkbuf[BP_SPRINTF_LEN + 80];

int l;

if (bc->bc_errno) {

(void) sprintf(blkbuf,

"Error %d reading <%llu, %llu, %lld, %llu>: ",

bc->bc_errno,

(u_longlong_t)zb->zb_objset,

(u_longlong_t)zb->zb_object,

(u_longlong_t)zb->zb_level,

(u_longlong_t)zb->zb_blkid);

goto out;

}

if (zb->zb_level == -1) {

ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET);

ASSERT3U(BP_GET_LEVEL(bp), ==, 0);

} else {

ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);

ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);

}

if (zb->zb_level > 0) {

uint64_t fill = 0;

blkptr_t *bpx, *bpend;

for (bpx = data, bpend = bpx + BP_GET_LSIZE(bp) / sizeof (*bpx);

bpx < bpend; bpx++) {

if (bpx->blk_birth != 0) {

fill += bpx->blk_fill;

} else {

ASSERT(bpx->blk_fill == 0);

}

}

ASSERT3U(fill, ==, bp->blk_fill);

}

if (zb->zb_level == 0 && dnp->dn_type == DMU_OT_DNODE) {

uint64_t fill = 0;

dnode_phys_t *dnx, *dnend;

for (dnx = data, dnend = dnx + (BP_GET_LSIZE(bp)>>DNODE_SHIFT);

dnx < dnend; dnx++) {

if (dnx->dn_type != DMU_OT_NONE)

fill++;

}

ASSERT3U(fill, ==, bp->blk_fill);

}

(void) sprintf(blkbuf, "%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) sprintf(blkbuf + strlen(blkbuf), "L%llx",

(u_longlong_t)zb->zb_level);

} else {

(void) sprintf(blkbuf + strlen(blkbuf), " ");

}

}

out:

if (bp->blk_birth == 0) {

(void) sprintf(blkbuf + strlen(blkbuf), "<hole>");

(void) printf("%s\n", blkbuf);

} else {

sprintf_blkptr_compact(blkbuf + strlen(blkbuf), bp,

dump_opt['d'] > 5 ? 1 : 0);

(void) printf("%s\n", blkbuf);

}

return (bc->bc_errno ? ERESTART : 0);

}

static void

dump_indirect(objset_t *os, uint64_t object, void *data, size_t size)

{

traverse_handle_t *th;

uint64_t objset = dmu_objset_id(os);

int advance = zdb_advance;

(void) printf("Indirect blocks:\n");

if (object == 0)

advance |= ADVANCE_DATA;

th = traverse_init(dmu_objset_spa(os), zdb_indirect_cb, NULL, advance,

ZIO_FLAG_CANFAIL);

th->th_noread = zdb_noread;

traverse_add_dnode(th, 0, -1ULL, objset, object);

while (traverse_more(th) == EAGAIN)

continue;

(void) printf("\n");

traverse_fini(th);

}

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 used[6], compressed[6], uncompressed[6], quota[6], resv[6];

if (dd == NULL)

return;

ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));

crtime = dd->dd_creation_time;

nicenum(dd->dd_used_bytes, used);

nicenum(dd->dd_compressed_bytes, compressed);

nicenum(dd->dd_uncompressed_bytes, uncompressed);

nicenum(dd->dd_quota, quota);

nicenum(dd->dd_reserved, resv);

(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);

(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\tquota = %s\n", quota);

(void) printf("\t\treserved = %s\n", resv);

(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);

}

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\tdataset_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\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;

}

}

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");

}

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);

}

static void

dump_acl(objset_t *os, uint64_t object, void *data, size_t size)

{

}

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 */

};

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(os, object, NULL, 0);

if (verbosity >= 5) {

/*

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, B_FALSE, &start, minlvl,

blkfill, 0);

if (error)

break;

end = start;

error = dnode_next_offset(dn, B_TRUE, &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_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 (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_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);

}

}

static int

dump_one_dir(char *dsname, void *arg)

{

int error;

objset_t *os;

error = dmu_objset_open(dsname, DMU_OST_ANY,

DS_MODE_STANDARD | 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_space_map_load(spa_t *spa)

{

vdev_t *rvd = spa->spa_root_vdev;

vdev_t *vd;

int c, m, error;

for (c = 0; c < rvd->vdev_children; c++) {

vd = rvd->vdev_child[c];

for (m = 0; m < vd->vdev_ms_count; m++) {

metaslab_t *msp = vd->vdev_ms[m];

mutex_enter(&msp->ms_lock);

error = space_map_load(&msp->ms_allocmap[0], NULL,

SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset);

mutex_exit(&msp->ms_lock);

if (error)

fatal("%s bad space map #%d, error %d",

spa->spa_name, c, error);

}

}

}

static int

zdb_space_map_claim(spa_t *spa, blkptr_t *bp, zbookmark_t *zb)

{

dva_t *dva = bp->blk_dva;

vdev_t *vd;

metaslab_t *msp;

space_map_t *allocmap, *freemap;

int error;

int d;

blkptr_t blk = *bp;

for (d = 0; d < BP_GET_NDVAS(bp); d++) {

uint64_t vdev = DVA_GET_VDEV(&dva[d]);

uint64_t offset = DVA_GET_OFFSET(&dva[d]);

uint64_t size = DVA_GET_ASIZE(&dva[d]);

if ((vd = vdev_lookup_top(spa, vdev)) == NULL)

return (ENXIO);

if ((offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count)

return (ENXIO);

msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];

allocmap = &msp->ms_allocmap[0];

freemap = &msp->ms_freemap[0];

/* Prepare our copy of the bp in case we need to read GBHs */

if (DVA_GET_GANG(&dva[d])) {

size = vdev_psize_to_asize(vd, SPA_GANGBLOCKSIZE);

DVA_SET_ASIZE(&blk.blk_dva[d], size);

DVA_SET_GANG(&blk.blk_dva[d], 0);

}

mutex_enter(&msp->ms_lock);

if (space_map_contains(freemap, offset, size)) {

mutex_exit(&msp->ms_lock);

return (EAGAIN); /* allocated more than once */

}

if (!space_map_contains(allocmap, offset, size)) {

mutex_exit(&msp->ms_lock);

return (ESTALE); /* not allocated at all */

}

space_map_remove(allocmap, offset, size);

space_map_add(freemap, offset, size);

mutex_exit(&msp->ms_lock);

}

if (BP_IS_GANG(bp)) {

zio_gbh_phys_t gbh;

int g;

/* LINTED - compile time assert */

ASSERT(sizeof (zio_gbh_phys_t) == SPA_GANGBLOCKSIZE);

BP_SET_CHECKSUM(&blk, ZIO_CHECKSUM_GANG_HEADER);

BP_SET_PSIZE(&blk, SPA_GANGBLOCKSIZE);

BP_SET_LSIZE(&blk, SPA_GANGBLOCKSIZE);

BP_SET_COMPRESS(&blk, ZIO_COMPRESS_OFF);

error = zio_wait(zio_read(NULL, spa, &blk, &gbh,

SPA_GANGBLOCKSIZE, NULL, NULL, ZIO_PRIORITY_SYNC_READ,

ZIO_FLAG_CANFAIL | ZIO_FLAG_CONFIG_HELD, zb));

if (error)

return (error);

if (BP_SHOULD_BYTESWAP(&blk))

byteswap_uint64_array(&gbh, SPA_GANGBLOCKSIZE);

for (g = 0; g < SPA_GBH_NBLKPTRS; g++) {

if (BP_IS_HOLE(&gbh.zg_blkptr[g]))

break;

error = zdb_space_map_claim(spa, &gbh.zg_blkptr[g], zb);

if (error)

return (error);

}

}

return (0);

}

static void

zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)

{

metaslab_t *msp;

/* LINTED */

msp = (metaslab_t *)((char *)sm - offsetof(metaslab_t, ms_allocmap[0]));

(void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",

(u_longlong_t)msp->ms_group->mg_vd->vdev_id,

(u_longlong_t)start,

(u_longlong_t)size);

}

static void

zdb_space_map_unload(spa_t *spa)

{

vdev_t *rvd = spa->spa_root_vdev;

vdev_t *vd;

int c, m;

for (c = 0; c < rvd->vdev_children; c++) {

vd = rvd->vdev_child[c];

for (m = 0; m < vd->vdev_ms_count; m++) {

metaslab_t *msp = vd->vdev_ms[m];

mutex_enter(&msp->ms_lock);

space_map_vacate(&msp->ms_allocmap[0], zdb_leak,

&msp->ms_allocmap[0]);

space_map_unload(&msp->ms_allocmap[0]);

space_map_vacate(&msp->ms_freemap[0], NULL, NULL);

mutex_exit(&msp->ms_lock);

}

}

}

static void

zdb_refresh_ubsync(spa_t *spa)

{

uberblock_t ub = { 0 };

vdev_t *rvd = spa->spa_root_vdev;

zio_t *zio;

/*

zio = zio_root(spa, NULL, NULL,

ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE);

vdev_uberblock_load(zio, rvd, &ub);

(void) zio_wait(zio);

if (ub.ub_txg != 0)

spa->spa_ubsync = ub;

}

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 ZB_MAXLEVEL

typedef struct zdb_cb {

zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1];

uint64_t zcb_errors[256];

traverse_blk_cache_t *zcb_cache;

int zcb_readfails;

int zcb_haderrors;

} zdb_cb_t;

static void

zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, int type)

{

int i, error;

for (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]);

}

}

if (dump_opt['L'])

return;

error = zdb_space_map_claim(spa, bp, &zcb->zcb_cache->bc_bookmark);

if (error == 0)

return;

if (error == EAGAIN)

(void) fatal("double-allocation, bp=%p", bp);

if (error == ESTALE)

(void) fatal("reference to freed block, bp=%p", bp);

(void) fatal("fatal error %d in bp %p", error, bp);

}

static int

zdb_blkptr_cb(traverse_blk_cache_t *bc, spa_t *spa, void *arg)

{

zbookmark_t *zb = &bc->bc_bookmark;

zdb_cb_t *zcb = arg;

blkptr_t *bp = &bc->bc_blkptr;

dmu_object_type_t type = BP_GET_TYPE(bp);

char blkbuf[BP_SPRINTF_LEN];

int error = 0;

if (bc->bc_errno) {

if (zcb->zcb_readfails++ < 10 && dump_opt['L']) {

zdb_refresh_ubsync(spa);

error = EAGAIN;

} else {

zcb->zcb_haderrors = 1;

zcb->zcb_errors[bc->bc_errno]++;

error = ERESTART;

}

if (dump_opt['b'] >= 3 || (dump_opt['b'] >= 2 && bc->bc_errno))

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 -- %s\n",

bc->bc_errno,

(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,

error == EAGAIN ? "retrying" : "skipping");

}

return (error);

}

zcb->zcb_readfails = 0;

ASSERT(!BP_IS_HOLE(bp));

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(bc->bc_dnode,

zb->zb_level, zb->zb_blkid), blkbuf);

}

zdb_count_block(spa, zcb, bp, type);

return (0);

}

static int

dump_block_stats(spa_t *spa)

{

traverse_handle_t *th;

zdb_cb_t zcb = { 0 };

traverse_blk_cache_t dummy_cache = { 0 };

zdb_blkstats_t *zb, *tzb;

uint64_t alloc, space, logalloc;

vdev_t *rvd = spa->spa_root_vdev;

int leaks = 0;

int advance = zdb_advance;

int c, e, flags;

zcb.zcb_cache = &dummy_cache;

if (dump_opt['c'] || dump_opt['S'])

advance |= ADVANCE_DATA;

advance |= ADVANCE_PRUNE | ADVANCE_ZIL;

if (!dump_opt['S']) {

(void) printf("\nTraversing all blocks to %sverify"

" nothing leaked ...\n",

dump_opt['c'] ? "verify checksums and " : "");

}

/*

if (!dump_opt['L'])

zdb_space_map_load(spa);

/*

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);

}

/*

flags = ZIO_FLAG_CANFAIL;

if (advance & ADVANCE_DATA)

flags |= ZIO_FLAG_SCRUB;

th = traverse_init(spa, zdb_blkptr_cb, &zcb, advance, flags);

th->th_noread = zdb_noread;

traverse_add_pool(th, 0, spa_first_txg(spa) + TXG_CONCURRENT_STATES);

while (traverse_more(th) == EAGAIN)

continue;

traverse_fini(th);

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]);

}

}

}

/*

if (!dump_opt['L'])

zdb_space_map_unload(spa);

/*

if (dump_opt['S'])

return (zcb.zcb_haderrors ? 3 : 0);

if (dump_opt['L'])

(void) printf("\n\n *** Live pool traversal; "

"block counts are only approximate ***\n\n");

alloc = spa_get_alloc(spa);

space = spa_get_space(spa);

/*

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;

spa_config_enter(spa, RW_READER, FTAG);

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->spa_name, 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);

spa_config_exit(spa, FTAG);

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));

/*

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");

}

}

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);

}

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, *spa_name, *vdev, *flagstr;

int i, error, zio_flags;

dup = strdup(thing);

s = strtok(dup, ":");

spa_name = 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 || spa->spa_name == NULL ||

strcmp(spa->spa_name, spa_name)) {

if (spa && spa->spa_name)

spa_close(spa, (void *)zdb_read_block);

error = spa_open(spa_name, spap, (void *)zdb_read_block);

if (error)

fatal("Failed to open pool '%s': %s",

spa_name, 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 | ZIO_FLAG_NOBOOKMARK;

if (flags & ZDB_FLAG_PHYS)

zio_flags |= ZIO_FLAG_PHYSICAL;

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);

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;

verify(nvlist_lookup_string(config, name, &s) == 0);

return (strcmp(s, tgt) == 0);

}

static boolean_t

nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt)

{

uint64_t val;

verify(nvlist_lookup_uint64(config, name, &val) == 0);

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,

char *cachefile)

{

nvlist_t *pools;

int error = ENOENT;

nvlist_t *match = NULL;

if (vdev_dir != NULL)

pools = zpool_find_import(g_zfs, 1, &vdev_dir, B_TRUE);

else if (cachefile != NULL)

pools = zpool_find_import_cached(g_zfs, cachefile, B_TRUE);

else

pools = zpool_find_import(g_zfs, 0, NULL, B_TRUE);

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);

}

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 flag, set;

int exported = 0;

char *vdev_dir = NULL;

char *cachefile = NULL;

(void) setrlimit(RLIMIT_NOFILE, &rl);

(void) enable_extended_FILE_stdio(-1, -1);

dprintf_setup(&argc, argv);

while ((c = getopt(argc, argv, "udibcsvCLO:B:S: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 'L':

dump_opt[c]++;

break;

case 'O':

endstr = optarg;

if (endstr[0] == '!') {

endstr++;

set = 0;

} else {

set = 1;

}

if (strcmp(endstr, "post") == 0) {

flag = ADVANCE_PRE;

set = !set;

} else if (strcmp(endstr, "pre") == 0) {

flag = ADVANCE_PRE;

} else if (strcmp(endstr, "prune") == 0) {

flag = ADVANCE_PRUNE;

} else if (strcmp(endstr, "data") == 0) {

flag = ADVANCE_DATA;

} else if (strcmp(endstr, "holes") == 0) {

flag = ADVANCE_HOLES;

} else {

usage();

}

if (set)

zdb_advance |= flag;

else

zdb_advance &= ~flag;

break;

case 'B':

endstr = optarg - 1;

zdb_noread.zb_objset = strtoull(endstr + 1, &endstr, 0);

zdb_noread.zb_object = strtoull(endstr + 1, &endstr, 0);

zdb_noread.zb_level = strtol(endstr + 1, &endstr, 0);

zdb_noread.zb_blkid = strtoull(endstr + 1, &endstr, 16);

(void) printf("simulating bad block "

"<%llu, %llu, %lld, %llx>\n",

(u_longlong_t)zdb_noread.zb_objset,

(u_longlong_t)zdb_noread.zb_object,

(u_longlong_t)zdb_noread.zb_level,

(u_longlong_t)zdb_noread.zb_blkid);

break;

case 'v':

verbose++;

break;

case 'U':

cachefile = 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) fatal("-p option requires use of -e\n");

kernel_init(FREAD);

g_zfs = libzfs_init();

ASSERT(g_zfs != NULL);

/*

zfs_vdev_cache_size = 0;