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zdb: dump ZAP_FLAG_UINT64_KEY ZAPs properly #16334

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merged 1 commit into from
Jul 17, 2024
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zdb: dump ZAP_FLAG_UINT64_KEY ZAPs properly #16334

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30 changes: 26 additions & 4 deletions cmd/zdb/zdb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@
#include <sys/spa_impl.h>
#include <sys/dmu.h>
#include <sys/zap.h>
#include <sys/zap_impl.h>
#include <sys/fs/zfs.h>
#include <sys/zfs_znode.h>
#include <sys/zfs_sa.h>
Expand Down Expand Up @@ -1126,16 +1127,33 @@ dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
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);
boolean_t key64 =
!!(zap_getflags(zc.zc_zap) & ZAP_FLAG_UINT64_KEY);

if (key64)
(void) printf("\t\t0x%010lx = ",
*(uint64_t *)attr.za_name);
else
(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) {

if (key64)
(void) zap_lookup_uint64(os, object,
(const uint64_t *)attr.za_name, 1,
attr.za_integer_length, attr.za_num_integers,
prop);
else
(void) zap_lookup(os, object, attr.za_name,
attr.za_integer_length, attr.za_num_integers,
prop);

if (attr.za_integer_length == 1 && !key64) {
if (strcmp(attr.za_name,
DSL_CRYPTO_KEY_MASTER_KEY) == 0 ||
strcmp(attr.za_name,
Expand All @@ -1154,6 +1172,10 @@ dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
} else {
for (i = 0; i < attr.za_num_integers; i++) {
switch (attr.za_integer_length) {
case 1:
(void) printf("%u ",
((uint8_t *)prop)[i]);
break;
case 2:
(void) printf("%u ",
((uint16_t *)prop)[i]);
Expand Down
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