4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2015, 2017 by Delphix. All rights reserved.
25 * Copyright 2018 RackTop Systems.
28 #include <sys/debug.h>
29 #include <sys/isa_defs.h>
30 #include <sys/nvpair.h>
31 #include <sys/nvpair_impl.h>
32 #include <sys/types.h>
33 #include <sys/strings.h>
37 #include <sys/sunddi.h>
38 #include <sys/sysmacros.h>
45 #define skip_whitespace(p) while ((*(p) == ' ') || (*(p) == '\t')) p++
48 * nvpair.c - Provides kernel & userland interfaces for manipulating
63 * +--------------+ last i_nvp in list
64 * | nvpriv_t | +--------------------->
66 * +--+- nvp_list | | +------------+
67 * | | nvp_last -+--+ + nv_alloc_t |
68 * | | nvp_curr | |------------|
69 * | | nvp_nva -+----> | nva_ops |
70 * | | nvp_stat | | nva_arg |
71 * | +--------------+ +------------+
75 * +---------------------+ +-------------------+
76 * | i_nvp_t | +-->| i_nvp_t | +-->
77 * |---------------------| | |-------------------| |
78 * | nvi_next -+--+ | nvi_next -+--+
79 * | nvi_prev (NULL) | <----+ nvi_prev |
80 * | . . . . . . . . . . | | . . . . . . . . . |
81 * | nvp (nvpair_t) | | nvp (nvpair_t) |
82 * | - nvp_size | | - nvp_size |
83 * | - nvp_name_sz | | - nvp_name_sz |
84 * | - nvp_value_elem | | - nvp_value_elem |
85 * | - nvp_type | | - nvp_type |
86 * | - data ... | | - data ... |
87 * +---------------------+ +-------------------+
91 * +---------------------+ +---------------------+
92 * | i_nvp_t | +--> +-->| i_nvp_t (last) |
93 * |---------------------| | | |---------------------|
94 * | nvi_next -+--+ ... --+ | nvi_next (NULL) |
95 * <-+- nvi_prev |<-- ... <----+ nvi_prev |
96 * | . . . . . . . . . | | . . . . . . . . . |
97 * | nvp (nvpair_t) | | nvp (nvpair_t) |
98 * | - nvp_size | | - nvp_size |
99 * | - nvp_name_sz | | - nvp_name_sz |
100 * | - nvp_value_elem | | - nvp_value_elem |
101 * | - DATA_TYPE_NVLIST | | - nvp_type |
102 * | - data (embedded) | | - data ... |
103 * | nvlist name | +---------------------+
104 * | +--------------+ |
106 * | |--------------| |
107 * | | nvl_version | |
109 * | | nvl_priv --+---+---->
112 * | +--------------+ |
113 * +---------------------+
116 * N.B. nvpair_t may be aligned on 4 byte boundary, so +4 will
117 * allow value to be aligned on 8 byte boundary
119 * name_len is the length of the name string including the null terminator
122 #define NVP_SIZE_CALC(name_len, data_len) \
123 (NV_ALIGN((sizeof (nvpair_t)) + name_len) + NV_ALIGN(data_len))
125 static int i_get_value_size(data_type_t type, const void *data, uint_t nelem);
126 static int nvlist_add_common(nvlist_t *nvl, const char *name, data_type_t type,
127 uint_t nelem, const void *data);
129 #define NV_STAT_EMBEDDED 0x1
130 #define EMBEDDED_NVL(nvp) ((nvlist_t *)(void *)NVP_VALUE(nvp))
131 #define EMBEDDED_NVL_ARRAY(nvp) ((nvlist_t **)(void *)NVP_VALUE(nvp))
133 #define NVP_VALOFF(nvp) (NV_ALIGN(sizeof (nvpair_t) + (nvp)->nvp_name_sz))
134 #define NVPAIR2I_NVP(nvp) \
135 ((i_nvp_t *)((size_t)(nvp) - offsetof(i_nvp_t, nvi_nvp)))
138 int nvpair_max_recursion = 20;
140 int nvpair_max_recursion = 100;
143 uint64_t nvlist_hashtable_init_size = (1 << 4);
146 nv_alloc_init(nv_alloc_t *nva, const nv_alloc_ops_t *nvo, /* args */ ...)
154 va_start(valist, nvo);
155 if (nva->nva_ops->nv_ao_init != NULL)
156 err = nva->nva_ops->nv_ao_init(nva, valist);
163 nv_alloc_reset(nv_alloc_t *nva)
165 if (nva->nva_ops->nv_ao_reset != NULL)
166 nva->nva_ops->nv_ao_reset(nva);
170 nv_alloc_fini(nv_alloc_t *nva)
172 if (nva->nva_ops->nv_ao_fini != NULL)
173 nva->nva_ops->nv_ao_fini(nva);
177 nvlist_lookup_nv_alloc(nvlist_t *nvl)
182 (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
185 return (priv->nvp_nva);
189 nv_mem_zalloc(nvpriv_t *nvp, size_t size)
191 nv_alloc_t *nva = nvp->nvp_nva;
194 if ((buf = nva->nva_ops->nv_ao_alloc(nva, size)) != NULL)
201 nv_mem_free(nvpriv_t *nvp, void *buf, size_t size)
203 nv_alloc_t *nva = nvp->nvp_nva;
205 nva->nva_ops->nv_ao_free(nva, buf, size);
209 nv_priv_init(nvpriv_t *priv, nv_alloc_t *nva, uint32_t stat)
211 bzero(priv, sizeof (nvpriv_t));
214 priv->nvp_stat = stat;
218 nv_priv_alloc(nv_alloc_t *nva)
223 * nv_mem_alloc() cannot called here because it needs the priv
226 if ((priv = nva->nva_ops->nv_ao_alloc(nva, sizeof (nvpriv_t))) == NULL)
229 nv_priv_init(priv, nva, 0);
235 * Embedded lists need their own nvpriv_t's. We create a new
236 * nvpriv_t using the parameters and allocator from the parent
240 nv_priv_alloc_embedded(nvpriv_t *priv)
244 if ((emb_priv = nv_mem_zalloc(priv, sizeof (nvpriv_t))) == NULL)
247 nv_priv_init(emb_priv, priv->nvp_nva, NV_STAT_EMBEDDED);
253 nvt_tab_alloc(nvpriv_t *priv, uint64_t buckets)
255 ASSERT3P(priv->nvp_hashtable, ==, NULL);
256 ASSERT0(priv->nvp_nbuckets);
257 ASSERT0(priv->nvp_nentries);
259 i_nvp_t **tab = nv_mem_zalloc(priv, buckets * sizeof (i_nvp_t *));
263 priv->nvp_hashtable = tab;
264 priv->nvp_nbuckets = buckets;
269 nvt_tab_free(nvpriv_t *priv)
271 i_nvp_t **tab = priv->nvp_hashtable;
273 ASSERT0(priv->nvp_nbuckets);
274 ASSERT0(priv->nvp_nentries);
278 nv_mem_free(priv, tab, priv->nvp_nbuckets * sizeof (i_nvp_t *));
280 priv->nvp_hashtable = NULL;
281 priv->nvp_nbuckets = 0;
282 priv->nvp_nentries = 0;
286 nvt_hash(const char *p)
288 uint32_t g, hval = 0;
291 hval = (hval << 4) + *p++;
292 if ((g = (hval & 0xf0000000)) != 0)
300 nvt_nvpair_match(nvpair_t *nvp1, nvpair_t *nvp2, uint32_t nvflag)
302 boolean_t match = B_FALSE;
303 if (nvflag & NV_UNIQUE_NAME_TYPE) {
304 if (strcmp(NVP_NAME(nvp1), NVP_NAME(nvp2)) == 0 &&
305 NVP_TYPE(nvp1) == NVP_TYPE(nvp2))
308 ASSERT(nvflag == 0 || nvflag & NV_UNIQUE_NAME);
309 if (strcmp(NVP_NAME(nvp1), NVP_NAME(nvp2)) == 0)
316 nvt_lookup_name_type(nvlist_t *nvl, const char *name, data_type_t type)
318 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
319 ASSERT(priv != NULL);
321 i_nvp_t **tab = priv->nvp_hashtable;
324 ASSERT3P(priv->nvp_list, ==, NULL);
325 ASSERT0(priv->nvp_nbuckets);
326 ASSERT0(priv->nvp_nentries);
329 ASSERT(priv->nvp_nbuckets != 0);
332 uint64_t hash = nvt_hash(name);
333 uint64_t index = hash & (priv->nvp_nbuckets - 1);
335 ASSERT3U(index, <, priv->nvp_nbuckets);
336 i_nvp_t *entry = tab[index];
338 for (i_nvp_t *e = entry; e != NULL; e = e->nvi_hashtable_next) {
339 if (strcmp(NVP_NAME(&e->nvi_nvp), name) == 0 &&
340 (type == DATA_TYPE_DONTCARE ||
341 NVP_TYPE(&e->nvi_nvp) == type))
342 return (&e->nvi_nvp);
348 nvt_lookup_name(nvlist_t *nvl, const char *name)
350 return (nvt_lookup_name_type(nvl, name, DATA_TYPE_DONTCARE));
354 nvt_resize(nvpriv_t *priv, uint32_t new_size)
356 i_nvp_t **tab = priv->nvp_hashtable;
359 * Migrate all the entries from the current table
360 * to a newly-allocated table with the new size by
361 * re-adjusting the pointers of their entries.
363 uint32_t size = priv->nvp_nbuckets;
364 uint32_t new_mask = new_size - 1;
365 ASSERT(ISP2(new_size));
367 i_nvp_t **new_tab = nv_mem_zalloc(priv, new_size * sizeof (i_nvp_t *));
371 uint32_t nentries = 0;
372 for (uint32_t i = 0; i < size; i++) {
373 i_nvp_t *next, *e = tab[i];
376 next = e->nvi_hashtable_next;
378 uint32_t hash = nvt_hash(NVP_NAME(&e->nvi_nvp));
379 uint32_t index = hash & new_mask;
381 e->nvi_hashtable_next = new_tab[index];
389 ASSERT3U(nentries, ==, priv->nvp_nentries);
393 priv->nvp_hashtable = new_tab;
394 priv->nvp_nbuckets = new_size;
395 priv->nvp_nentries = nentries;
401 nvt_needs_togrow(nvpriv_t *priv)
404 * Grow only when we have more elements than buckets
405 * and the # of buckets doesn't overflow.
407 return (priv->nvp_nentries > priv->nvp_nbuckets &&
408 (UINT32_MAX >> 1) >= priv->nvp_nbuckets);
412 * Allocate a new table that's twice the size of the old one,
413 * and migrate all the entries from the old one to the new
414 * one by re-adjusting their pointers.
417 nvt_grow(nvpriv_t *priv)
419 uint32_t current_size = priv->nvp_nbuckets;
420 /* ensure we won't overflow */
421 ASSERT3U(UINT32_MAX >> 1, >=, current_size);
422 return (nvt_resize(priv, current_size << 1));
426 nvt_needs_toshrink(nvpriv_t *priv)
429 * Shrink only when the # of elements is less than or
430 * equal to 1/4 the # of buckets. Never shrink less than
431 * nvlist_hashtable_init_size.
433 ASSERT3U(priv->nvp_nbuckets, >=, nvlist_hashtable_init_size);
434 if (priv->nvp_nbuckets == nvlist_hashtable_init_size)
436 return (priv->nvp_nentries <= (priv->nvp_nbuckets >> 2));
440 * Allocate a new table that's half the size of the old one,
441 * and migrate all the entries from the old one to the new
442 * one by re-adjusting their pointers.
445 nvt_shrink(nvpriv_t *priv)
447 uint32_t current_size = priv->nvp_nbuckets;
448 /* ensure we won't overflow */
449 ASSERT3U(current_size, >=, nvlist_hashtable_init_size);
450 return (nvt_resize(priv, current_size >> 1));
454 nvt_remove_nvpair(nvlist_t *nvl, nvpair_t *nvp)
456 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
458 if (nvt_needs_toshrink(priv)) {
459 int err = nvt_shrink(priv);
463 i_nvp_t **tab = priv->nvp_hashtable;
465 char *name = NVP_NAME(nvp);
466 uint64_t hash = nvt_hash(name);
467 uint64_t index = hash & (priv->nvp_nbuckets - 1);
469 ASSERT3U(index, <, priv->nvp_nbuckets);
470 i_nvp_t *bucket = tab[index];
472 for (i_nvp_t *prev = NULL, *e = bucket;
473 e != NULL; prev = e, e = e->nvi_hashtable_next) {
474 if (nvt_nvpair_match(&e->nvi_nvp, nvp, nvl->nvl_nvflag)) {
476 prev->nvi_hashtable_next =
477 e->nvi_hashtable_next;
479 ASSERT3P(e, ==, bucket);
480 tab[index] = e->nvi_hashtable_next;
482 e->nvi_hashtable_next = NULL;
483 priv->nvp_nentries--;
492 nvt_add_nvpair(nvlist_t *nvl, nvpair_t *nvp)
494 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
496 /* initialize nvpair table now if it doesn't exist. */
497 if (priv->nvp_hashtable == NULL) {
498 int err = nvt_tab_alloc(priv, nvlist_hashtable_init_size);
504 * if we don't allow duplicate entries, make sure to
505 * unlink any existing entries from the table.
507 if (nvl->nvl_nvflag != 0) {
508 int err = nvt_remove_nvpair(nvl, nvp);
513 if (nvt_needs_togrow(priv)) {
514 int err = nvt_grow(priv);
518 i_nvp_t **tab = priv->nvp_hashtable;
520 char *name = NVP_NAME(nvp);
521 uint64_t hash = nvt_hash(name);
522 uint64_t index = hash & (priv->nvp_nbuckets - 1);
524 ASSERT3U(index, <, priv->nvp_nbuckets);
525 i_nvp_t *bucket = tab[index];
527 /* insert link at the beginning of the bucket */
528 i_nvp_t *new_entry = NVPAIR2I_NVP(nvp);
529 ASSERT3P(new_entry->nvi_hashtable_next, ==, NULL);
530 new_entry->nvi_hashtable_next = bucket;
531 tab[index] = new_entry;
533 priv->nvp_nentries++;
538 nvlist_init(nvlist_t *nvl, uint32_t nvflag, nvpriv_t *priv)
540 nvl->nvl_version = NV_VERSION;
541 nvl->nvl_nvflag = nvflag & (NV_UNIQUE_NAME|NV_UNIQUE_NAME_TYPE);
542 nvl->nvl_priv = (uint64_t)(uintptr_t)priv;
548 nvlist_nvflag(nvlist_t *nvl)
550 return (nvl->nvl_nvflag);
554 nvlist_nv_alloc(int kmflag)
559 return (nv_alloc_sleep);
561 return (nv_alloc_pushpage);
563 return (nv_alloc_nosleep);
566 return (nv_alloc_nosleep);
571 * nvlist_alloc - Allocate nvlist.
574 nvlist_alloc(nvlist_t **nvlp, uint_t nvflag, int kmflag)
576 return (nvlist_xalloc(nvlp, nvflag, nvlist_nv_alloc(kmflag)));
580 nvlist_xalloc(nvlist_t **nvlp, uint_t nvflag, nv_alloc_t *nva)
584 if (nvlp == NULL || nva == NULL)
587 if ((priv = nv_priv_alloc(nva)) == NULL)
590 if ((*nvlp = nv_mem_zalloc(priv,
591 NV_ALIGN(sizeof (nvlist_t)))) == NULL) {
592 nv_mem_free(priv, priv, sizeof (nvpriv_t));
596 nvlist_init(*nvlp, nvflag, priv);
602 * nvp_buf_alloc - Allocate i_nvp_t for storing a new nv pair.
605 nvp_buf_alloc(nvlist_t *nvl, size_t len)
607 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
613 * Allocate the buffer
615 nvsize = len + offsetof(i_nvp_t, nvi_nvp);
617 if ((buf = nv_mem_zalloc(priv, nvsize)) == NULL)
627 * nvp_buf_free - de-Allocate an i_nvp_t.
630 nvp_buf_free(nvlist_t *nvl, nvpair_t *nvp)
632 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
633 size_t nvsize = nvp->nvp_size + offsetof(i_nvp_t, nvi_nvp);
635 nv_mem_free(priv, NVPAIR2I_NVP(nvp), nvsize);
639 * nvp_buf_link - link a new nv pair into the nvlist.
642 nvp_buf_link(nvlist_t *nvl, nvpair_t *nvp)
644 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
645 i_nvp_t *curr = NVPAIR2I_NVP(nvp);
647 /* Put element at end of nvlist */
648 if (priv->nvp_list == NULL) {
649 priv->nvp_list = priv->nvp_last = curr;
651 curr->nvi_prev = priv->nvp_last;
652 priv->nvp_last->nvi_next = curr;
653 priv->nvp_last = curr;
658 * nvp_buf_unlink - unlink an removed nvpair out of the nvlist.
661 nvp_buf_unlink(nvlist_t *nvl, nvpair_t *nvp)
663 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
664 i_nvp_t *curr = NVPAIR2I_NVP(nvp);
667 * protect nvlist_next_nvpair() against walking on freed memory.
669 if (priv->nvp_curr == curr)
670 priv->nvp_curr = curr->nvi_next;
672 if (curr == priv->nvp_list)
673 priv->nvp_list = curr->nvi_next;
675 curr->nvi_prev->nvi_next = curr->nvi_next;
677 if (curr == priv->nvp_last)
678 priv->nvp_last = curr->nvi_prev;
680 curr->nvi_next->nvi_prev = curr->nvi_prev;
684 * take a nvpair type and number of elements and make sure the are valid
687 i_validate_type_nelem(data_type_t type, uint_t nelem)
690 case DATA_TYPE_BOOLEAN:
694 case DATA_TYPE_BOOLEAN_VALUE:
697 case DATA_TYPE_UINT8:
698 case DATA_TYPE_INT16:
699 case DATA_TYPE_UINT16:
700 case DATA_TYPE_INT32:
701 case DATA_TYPE_UINT32:
702 case DATA_TYPE_INT64:
703 case DATA_TYPE_UINT64:
704 case DATA_TYPE_STRING:
705 case DATA_TYPE_HRTIME:
706 case DATA_TYPE_NVLIST:
707 #if !defined(_KERNEL)
708 case DATA_TYPE_DOUBLE:
713 case DATA_TYPE_BOOLEAN_ARRAY:
714 case DATA_TYPE_BYTE_ARRAY:
715 case DATA_TYPE_INT8_ARRAY:
716 case DATA_TYPE_UINT8_ARRAY:
717 case DATA_TYPE_INT16_ARRAY:
718 case DATA_TYPE_UINT16_ARRAY:
719 case DATA_TYPE_INT32_ARRAY:
720 case DATA_TYPE_UINT32_ARRAY:
721 case DATA_TYPE_INT64_ARRAY:
722 case DATA_TYPE_UINT64_ARRAY:
723 case DATA_TYPE_STRING_ARRAY:
724 case DATA_TYPE_NVLIST_ARRAY:
725 /* we allow arrays with 0 elements */
734 * Verify nvp_name_sz and check the name string length.
737 i_validate_nvpair_name(nvpair_t *nvp)
739 if ((nvp->nvp_name_sz <= 0) ||
740 (nvp->nvp_size < NVP_SIZE_CALC(nvp->nvp_name_sz, 0)))
743 /* verify the name string, make sure its terminated */
744 if (NVP_NAME(nvp)[nvp->nvp_name_sz - 1] != '\0')
747 return (strlen(NVP_NAME(nvp)) == nvp->nvp_name_sz - 1 ? 0 : EFAULT);
751 i_validate_nvpair_value(data_type_t type, uint_t nelem, const void *data)
754 case DATA_TYPE_BOOLEAN_VALUE:
755 if (*(boolean_t *)data != B_TRUE &&
756 *(boolean_t *)data != B_FALSE)
759 case DATA_TYPE_BOOLEAN_ARRAY: {
762 for (i = 0; i < nelem; i++)
763 if (((boolean_t *)data)[i] != B_TRUE &&
764 ((boolean_t *)data)[i] != B_FALSE)
776 * This function takes a pointer to what should be a nvpair and it's size
777 * and then verifies that all the nvpair fields make sense and can be
778 * trusted. This function is used when decoding packed nvpairs.
781 i_validate_nvpair(nvpair_t *nvp)
783 data_type_t type = NVP_TYPE(nvp);
786 /* verify nvp_name_sz, check the name string length */
787 if (i_validate_nvpair_name(nvp) != 0)
790 if (i_validate_nvpair_value(type, NVP_NELEM(nvp), NVP_VALUE(nvp)) != 0)
794 * verify nvp_type, nvp_value_elem, and also possibly
795 * verify string values and get the value size.
797 size2 = i_get_value_size(type, NVP_VALUE(nvp), NVP_NELEM(nvp));
798 size1 = nvp->nvp_size - NVP_VALOFF(nvp);
799 if (size2 < 0 || size1 != NV_ALIGN(size2))
806 nvlist_copy_pairs(nvlist_t *snvl, nvlist_t *dnvl)
811 if ((priv = (nvpriv_t *)(uintptr_t)snvl->nvl_priv) == NULL)
814 for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) {
815 nvpair_t *nvp = &curr->nvi_nvp;
818 if ((err = nvlist_add_common(dnvl, NVP_NAME(nvp), NVP_TYPE(nvp),
819 NVP_NELEM(nvp), NVP_VALUE(nvp))) != 0)
827 * Frees all memory allocated for an nvpair (like embedded lists) with
828 * the exception of the nvpair buffer itself.
831 nvpair_free(nvpair_t *nvp)
833 switch (NVP_TYPE(nvp)) {
834 case DATA_TYPE_NVLIST:
835 nvlist_free(EMBEDDED_NVL(nvp));
837 case DATA_TYPE_NVLIST_ARRAY: {
838 nvlist_t **nvlp = EMBEDDED_NVL_ARRAY(nvp);
841 for (i = 0; i < NVP_NELEM(nvp); i++)
843 nvlist_free(nvlp[i]);
852 * nvlist_free - free an unpacked nvlist
855 nvlist_free(nvlist_t *nvl)
861 (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
865 * Unpacked nvlist are linked through i_nvp_t
867 curr = priv->nvp_list;
868 while (curr != NULL) {
869 nvpair_t *nvp = &curr->nvi_nvp;
870 curr = curr->nvi_next;
873 nvp_buf_free(nvl, nvp);
876 if (!(priv->nvp_stat & NV_STAT_EMBEDDED))
877 nv_mem_free(priv, nvl, NV_ALIGN(sizeof (nvlist_t)));
882 nv_mem_free(priv, priv, sizeof (nvpriv_t));
886 nvlist_contains_nvp(nvlist_t *nvl, nvpair_t *nvp)
888 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
894 for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next)
895 if (&curr->nvi_nvp == nvp)
902 * Make a copy of nvlist
905 nvlist_dup(nvlist_t *nvl, nvlist_t **nvlp, int kmflag)
907 return (nvlist_xdup(nvl, nvlp, nvlist_nv_alloc(kmflag)));
911 nvlist_xdup(nvlist_t *nvl, nvlist_t **nvlp, nv_alloc_t *nva)
916 if (nvl == NULL || nvlp == NULL)
919 if ((err = nvlist_xalloc(&ret, nvl->nvl_nvflag, nva)) != 0)
922 if ((err = nvlist_copy_pairs(nvl, ret)) != 0)
931 * Remove all with matching name
934 nvlist_remove_all(nvlist_t *nvl, const char *name)
938 if (nvl == NULL || name == NULL || nvl->nvl_priv == 0)
942 while ((nvp = nvt_lookup_name(nvl, name)) != NULL) {
943 VERIFY0(nvlist_remove_nvpair(nvl, nvp));
951 * Remove first one with matching name and type
954 nvlist_remove(nvlist_t *nvl, const char *name, data_type_t type)
956 if (nvl == NULL || name == NULL || nvl->nvl_priv == 0)
959 nvpair_t *nvp = nvt_lookup_name_type(nvl, name, type);
963 return (nvlist_remove_nvpair(nvl, nvp));
967 nvlist_remove_nvpair(nvlist_t *nvl, nvpair_t *nvp)
969 if (nvl == NULL || nvp == NULL)
972 int err = nvt_remove_nvpair(nvl, nvp);
976 nvp_buf_unlink(nvl, nvp);
978 nvp_buf_free(nvl, nvp);
983 * This function calculates the size of an nvpair value.
985 * The data argument controls the behavior in case of the data types
986 * DATA_TYPE_STRING and
987 * DATA_TYPE_STRING_ARRAY
988 * Is data == NULL then the size of the string(s) is excluded.
991 i_get_value_size(data_type_t type, const void *data, uint_t nelem)
995 if (i_validate_type_nelem(type, nelem) != 0)
998 /* Calculate required size for holding value */
1000 case DATA_TYPE_BOOLEAN:
1003 case DATA_TYPE_BOOLEAN_VALUE:
1004 value_sz = sizeof (boolean_t);
1006 case DATA_TYPE_BYTE:
1007 value_sz = sizeof (uchar_t);
1009 case DATA_TYPE_INT8:
1010 value_sz = sizeof (int8_t);
1012 case DATA_TYPE_UINT8:
1013 value_sz = sizeof (uint8_t);
1015 case DATA_TYPE_INT16:
1016 value_sz = sizeof (int16_t);
1018 case DATA_TYPE_UINT16:
1019 value_sz = sizeof (uint16_t);
1021 case DATA_TYPE_INT32:
1022 value_sz = sizeof (int32_t);
1024 case DATA_TYPE_UINT32:
1025 value_sz = sizeof (uint32_t);
1027 case DATA_TYPE_INT64:
1028 value_sz = sizeof (int64_t);
1030 case DATA_TYPE_UINT64:
1031 value_sz = sizeof (uint64_t);
1033 #if !defined(_KERNEL)
1034 case DATA_TYPE_DOUBLE:
1035 value_sz = sizeof (double);
1038 case DATA_TYPE_STRING:
1042 value_sz = strlen(data) + 1;
1044 case DATA_TYPE_BOOLEAN_ARRAY:
1045 value_sz = (uint64_t)nelem * sizeof (boolean_t);
1047 case DATA_TYPE_BYTE_ARRAY:
1048 value_sz = (uint64_t)nelem * sizeof (uchar_t);
1050 case DATA_TYPE_INT8_ARRAY:
1051 value_sz = (uint64_t)nelem * sizeof (int8_t);
1053 case DATA_TYPE_UINT8_ARRAY:
1054 value_sz = (uint64_t)nelem * sizeof (uint8_t);
1056 case DATA_TYPE_INT16_ARRAY:
1057 value_sz = (uint64_t)nelem * sizeof (int16_t);
1059 case DATA_TYPE_UINT16_ARRAY:
1060 value_sz = (uint64_t)nelem * sizeof (uint16_t);
1062 case DATA_TYPE_INT32_ARRAY:
1063 value_sz = (uint64_t)nelem * sizeof (int32_t);
1065 case DATA_TYPE_UINT32_ARRAY:
1066 value_sz = (uint64_t)nelem * sizeof (uint32_t);
1068 case DATA_TYPE_INT64_ARRAY:
1069 value_sz = (uint64_t)nelem * sizeof (int64_t);
1071 case DATA_TYPE_UINT64_ARRAY:
1072 value_sz = (uint64_t)nelem * sizeof (uint64_t);
1074 case DATA_TYPE_STRING_ARRAY:
1075 value_sz = (uint64_t)nelem * sizeof (uint64_t);
1078 char *const *strs = data;
1081 /* no alignment requirement for strings */
1082 for (i = 0; i < nelem; i++) {
1083 if (strs[i] == NULL)
1085 value_sz += strlen(strs[i]) + 1;
1089 case DATA_TYPE_HRTIME:
1090 value_sz = sizeof (hrtime_t);
1092 case DATA_TYPE_NVLIST:
1093 value_sz = NV_ALIGN(sizeof (nvlist_t));
1095 case DATA_TYPE_NVLIST_ARRAY:
1096 value_sz = (uint64_t)nelem * sizeof (uint64_t) +
1097 (uint64_t)nelem * NV_ALIGN(sizeof (nvlist_t));
1103 return (value_sz > INT32_MAX ? -1 : (int)value_sz);
1107 nvlist_copy_embedded(nvlist_t *nvl, nvlist_t *onvl, nvlist_t *emb_nvl)
1112 if ((priv = nv_priv_alloc_embedded((nvpriv_t *)(uintptr_t)
1113 nvl->nvl_priv)) == NULL)
1116 nvlist_init(emb_nvl, onvl->nvl_nvflag, priv);
1118 if ((err = nvlist_copy_pairs(onvl, emb_nvl)) != 0) {
1119 nvlist_free(emb_nvl);
1120 emb_nvl->nvl_priv = 0;
1127 * nvlist_add_common - Add new <name,value> pair to nvlist
1130 nvlist_add_common(nvlist_t *nvl, const char *name,
1131 data_type_t type, uint_t nelem, const void *data)
1136 int nvp_sz, name_sz, value_sz;
1139 if (name == NULL || nvl == NULL || nvl->nvl_priv == 0)
1142 if (nelem != 0 && data == NULL)
1146 * Verify type and nelem and get the value size.
1147 * In case of data types DATA_TYPE_STRING and DATA_TYPE_STRING_ARRAY
1148 * is the size of the string(s) included.
1150 if ((value_sz = i_get_value_size(type, data, nelem)) < 0)
1153 if (i_validate_nvpair_value(type, nelem, data) != 0)
1157 * If we're adding an nvlist or nvlist array, ensure that we are not
1158 * adding the input nvlist to itself, which would cause recursion,
1159 * and ensure that no NULL nvlist pointers are present.
1162 case DATA_TYPE_NVLIST:
1163 if (data == nvl || data == NULL)
1166 case DATA_TYPE_NVLIST_ARRAY: {
1167 nvlist_t **onvlp = (nvlist_t **)data;
1168 for (i = 0; i < nelem; i++) {
1169 if (onvlp[i] == nvl || onvlp[i] == NULL)
1178 /* calculate sizes of the nvpair elements and the nvpair itself */
1179 name_sz = strlen(name) + 1;
1180 if (name_sz >= 1ULL << (sizeof (nvp->nvp_name_sz) * NBBY - 1))
1183 nvp_sz = NVP_SIZE_CALC(name_sz, value_sz);
1185 if ((nvp = nvp_buf_alloc(nvl, nvp_sz)) == NULL)
1188 ASSERT(nvp->nvp_size == nvp_sz);
1189 nvp->nvp_name_sz = name_sz;
1190 nvp->nvp_value_elem = nelem;
1191 nvp->nvp_type = type;
1192 bcopy(name, NVP_NAME(nvp), name_sz);
1195 case DATA_TYPE_BOOLEAN:
1197 case DATA_TYPE_STRING_ARRAY: {
1198 char *const *strs = data;
1199 char *buf = NVP_VALUE(nvp);
1200 char **cstrs = (void *)buf;
1202 /* skip pre-allocated space for pointer array */
1203 buf += nelem * sizeof (uint64_t);
1204 for (i = 0; i < nelem; i++) {
1205 int slen = strlen(strs[i]) + 1;
1206 bcopy(strs[i], buf, slen);
1212 case DATA_TYPE_NVLIST: {
1213 nvlist_t *nnvl = EMBEDDED_NVL(nvp);
1214 nvlist_t *onvl = (nvlist_t *)data;
1216 if ((err = nvlist_copy_embedded(nvl, onvl, nnvl)) != 0) {
1217 nvp_buf_free(nvl, nvp);
1222 case DATA_TYPE_NVLIST_ARRAY: {
1223 nvlist_t **onvlp = (nvlist_t **)data;
1224 nvlist_t **nvlp = EMBEDDED_NVL_ARRAY(nvp);
1225 nvlist_t *embedded = (nvlist_t *)
1226 ((uintptr_t)nvlp + nelem * sizeof (uint64_t));
1228 for (i = 0; i < nelem; i++) {
1229 if ((err = nvlist_copy_embedded(nvl,
1230 onvlp[i], embedded)) != 0) {
1232 * Free any successfully created lists
1235 nvp_buf_free(nvl, nvp);
1239 nvlp[i] = embedded++;
1244 bcopy(data, NVP_VALUE(nvp), value_sz);
1247 /* if unique name, remove before add */
1248 if (nvl->nvl_nvflag & NV_UNIQUE_NAME)
1249 (void) nvlist_remove_all(nvl, name);
1250 else if (nvl->nvl_nvflag & NV_UNIQUE_NAME_TYPE)
1251 (void) nvlist_remove(nvl, name, type);
1253 err = nvt_add_nvpair(nvl, nvp);
1256 nvp_buf_free(nvl, nvp);
1259 nvp_buf_link(nvl, nvp);
1265 nvlist_add_boolean(nvlist_t *nvl, const char *name)
1267 return (nvlist_add_common(nvl, name, DATA_TYPE_BOOLEAN, 0, NULL));
1271 nvlist_add_boolean_value(nvlist_t *nvl, const char *name, boolean_t val)
1273 return (nvlist_add_common(nvl, name, DATA_TYPE_BOOLEAN_VALUE, 1, &val));
1277 nvlist_add_byte(nvlist_t *nvl, const char *name, uchar_t val)
1279 return (nvlist_add_common(nvl, name, DATA_TYPE_BYTE, 1, &val));
1283 nvlist_add_int8(nvlist_t *nvl, const char *name, int8_t val)
1285 return (nvlist_add_common(nvl, name, DATA_TYPE_INT8, 1, &val));
1289 nvlist_add_uint8(nvlist_t *nvl, const char *name, uint8_t val)
1291 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT8, 1, &val));
1295 nvlist_add_int16(nvlist_t *nvl, const char *name, int16_t val)
1297 return (nvlist_add_common(nvl, name, DATA_TYPE_INT16, 1, &val));
1301 nvlist_add_uint16(nvlist_t *nvl, const char *name, uint16_t val)
1303 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT16, 1, &val));
1307 nvlist_add_int32(nvlist_t *nvl, const char *name, int32_t val)
1309 return (nvlist_add_common(nvl, name, DATA_TYPE_INT32, 1, &val));
1313 nvlist_add_uint32(nvlist_t *nvl, const char *name, uint32_t val)
1315 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT32, 1, &val));
1319 nvlist_add_int64(nvlist_t *nvl, const char *name, int64_t val)
1321 return (nvlist_add_common(nvl, name, DATA_TYPE_INT64, 1, &val));
1325 nvlist_add_uint64(nvlist_t *nvl, const char *name, uint64_t val)
1327 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT64, 1, &val));
1330 #if !defined(_KERNEL)
1332 nvlist_add_double(nvlist_t *nvl, const char *name, double val)
1334 return (nvlist_add_common(nvl, name, DATA_TYPE_DOUBLE, 1, &val));
1339 nvlist_add_string(nvlist_t *nvl, const char *name, const char *val)
1341 return (nvlist_add_common(nvl, name, DATA_TYPE_STRING, 1, (void *)val));
1345 nvlist_add_boolean_array(nvlist_t *nvl, const char *name,
1346 boolean_t *a, uint_t n)
1348 return (nvlist_add_common(nvl, name, DATA_TYPE_BOOLEAN_ARRAY, n, a));
1352 nvlist_add_byte_array(nvlist_t *nvl, const char *name, uchar_t *a, uint_t n)
1354 return (nvlist_add_common(nvl, name, DATA_TYPE_BYTE_ARRAY, n, a));
1358 nvlist_add_int8_array(nvlist_t *nvl, const char *name, int8_t *a, uint_t n)
1360 return (nvlist_add_common(nvl, name, DATA_TYPE_INT8_ARRAY, n, a));
1364 nvlist_add_uint8_array(nvlist_t *nvl, const char *name, uint8_t *a, uint_t n)
1366 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT8_ARRAY, n, a));
1370 nvlist_add_int16_array(nvlist_t *nvl, const char *name, int16_t *a, uint_t n)
1372 return (nvlist_add_common(nvl, name, DATA_TYPE_INT16_ARRAY, n, a));
1376 nvlist_add_uint16_array(nvlist_t *nvl, const char *name, uint16_t *a, uint_t n)
1378 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT16_ARRAY, n, a));
1382 nvlist_add_int32_array(nvlist_t *nvl, const char *name, int32_t *a, uint_t n)
1384 return (nvlist_add_common(nvl, name, DATA_TYPE_INT32_ARRAY, n, a));
1388 nvlist_add_uint32_array(nvlist_t *nvl, const char *name, uint32_t *a, uint_t n)
1390 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT32_ARRAY, n, a));
1394 nvlist_add_int64_array(nvlist_t *nvl, const char *name, int64_t *a, uint_t n)
1396 return (nvlist_add_common(nvl, name, DATA_TYPE_INT64_ARRAY, n, a));
1400 nvlist_add_uint64_array(nvlist_t *nvl, const char *name, uint64_t *a, uint_t n)
1402 return (nvlist_add_common(nvl, name, DATA_TYPE_UINT64_ARRAY, n, a));
1406 nvlist_add_string_array(nvlist_t *nvl, const char *name,
1407 char *const *a, uint_t n)
1409 return (nvlist_add_common(nvl, name, DATA_TYPE_STRING_ARRAY, n, a));
1413 nvlist_add_hrtime(nvlist_t *nvl, const char *name, hrtime_t val)
1415 return (nvlist_add_common(nvl, name, DATA_TYPE_HRTIME, 1, &val));
1419 nvlist_add_nvlist(nvlist_t *nvl, const char *name, nvlist_t *val)
1421 return (nvlist_add_common(nvl, name, DATA_TYPE_NVLIST, 1, val));
1425 nvlist_add_nvlist_array(nvlist_t *nvl, const char *name, nvlist_t **a, uint_t n)
1427 return (nvlist_add_common(nvl, name, DATA_TYPE_NVLIST_ARRAY, n, a));
1430 /* reading name-value pairs */
1432 nvlist_next_nvpair(nvlist_t *nvl, nvpair_t *nvp)
1438 (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
1441 curr = NVPAIR2I_NVP(nvp);
1444 * Ensure that nvp is a valid nvpair on this nvlist.
1445 * NB: nvp_curr is used only as a hint so that we don't always
1446 * have to walk the list to determine if nvp is still on the list.
1449 curr = priv->nvp_list;
1450 else if (priv->nvp_curr == curr || nvlist_contains_nvp(nvl, nvp))
1451 curr = curr->nvi_next;
1455 priv->nvp_curr = curr;
1457 return (curr != NULL ? &curr->nvi_nvp : NULL);
1461 nvlist_prev_nvpair(nvlist_t *nvl, nvpair_t *nvp)
1467 (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
1470 curr = NVPAIR2I_NVP(nvp);
1473 curr = priv->nvp_last;
1474 else if (priv->nvp_curr == curr || nvlist_contains_nvp(nvl, nvp))
1475 curr = curr->nvi_prev;
1479 priv->nvp_curr = curr;
1481 return (curr != NULL ? &curr->nvi_nvp : NULL);
1485 nvlist_empty(nvlist_t *nvl)
1490 (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
1493 return (priv->nvp_list == NULL);
1497 nvpair_name(nvpair_t *nvp)
1499 return (NVP_NAME(nvp));
1503 nvpair_type(nvpair_t *nvp)
1505 return (NVP_TYPE(nvp));
1509 nvpair_type_is_array(nvpair_t *nvp)
1511 data_type_t type = NVP_TYPE(nvp);
1513 if ((type == DATA_TYPE_BYTE_ARRAY) ||
1514 (type == DATA_TYPE_INT8_ARRAY) ||
1515 (type == DATA_TYPE_UINT8_ARRAY) ||
1516 (type == DATA_TYPE_INT16_ARRAY) ||
1517 (type == DATA_TYPE_UINT16_ARRAY) ||
1518 (type == DATA_TYPE_INT32_ARRAY) ||
1519 (type == DATA_TYPE_UINT32_ARRAY) ||
1520 (type == DATA_TYPE_INT64_ARRAY) ||
1521 (type == DATA_TYPE_UINT64_ARRAY) ||
1522 (type == DATA_TYPE_BOOLEAN_ARRAY) ||
1523 (type == DATA_TYPE_STRING_ARRAY) ||
1524 (type == DATA_TYPE_NVLIST_ARRAY))
1531 nvpair_value_common(nvpair_t *nvp, data_type_t type, uint_t *nelem, void *data)
1535 if (nvp == NULL || nvpair_type(nvp) != type)
1539 * For non-array types, we copy the data.
1540 * For array types (including string), we set a pointer.
1543 case DATA_TYPE_BOOLEAN:
1548 case DATA_TYPE_BOOLEAN_VALUE:
1549 case DATA_TYPE_BYTE:
1550 case DATA_TYPE_INT8:
1551 case DATA_TYPE_UINT8:
1552 case DATA_TYPE_INT16:
1553 case DATA_TYPE_UINT16:
1554 case DATA_TYPE_INT32:
1555 case DATA_TYPE_UINT32:
1556 case DATA_TYPE_INT64:
1557 case DATA_TYPE_UINT64:
1558 case DATA_TYPE_HRTIME:
1559 #if !defined(_KERNEL)
1560 case DATA_TYPE_DOUBLE:
1564 if ((value_sz = i_get_value_size(type, NULL, 1)) < 0)
1566 bcopy(NVP_VALUE(nvp), data, (size_t)value_sz);
1571 case DATA_TYPE_NVLIST:
1572 case DATA_TYPE_STRING:
1575 *(void **)data = (void *)NVP_VALUE(nvp);
1580 case DATA_TYPE_BOOLEAN_ARRAY:
1581 case DATA_TYPE_BYTE_ARRAY:
1582 case DATA_TYPE_INT8_ARRAY:
1583 case DATA_TYPE_UINT8_ARRAY:
1584 case DATA_TYPE_INT16_ARRAY:
1585 case DATA_TYPE_UINT16_ARRAY:
1586 case DATA_TYPE_INT32_ARRAY:
1587 case DATA_TYPE_UINT32_ARRAY:
1588 case DATA_TYPE_INT64_ARRAY:
1589 case DATA_TYPE_UINT64_ARRAY:
1590 case DATA_TYPE_STRING_ARRAY:
1591 case DATA_TYPE_NVLIST_ARRAY:
1592 if (nelem == NULL || data == NULL)
1594 if ((*nelem = NVP_NELEM(nvp)) != 0)
1595 *(void **)data = (void *)NVP_VALUE(nvp);
1597 *(void **)data = NULL;
1608 nvlist_lookup_common(nvlist_t *nvl, const char *name, data_type_t type,
1609 uint_t *nelem, void *data)
1611 if (name == NULL || nvl == NULL || nvl->nvl_priv == 0)
1614 if (!(nvl->nvl_nvflag & (NV_UNIQUE_NAME | NV_UNIQUE_NAME_TYPE)))
1617 nvpair_t *nvp = nvt_lookup_name_type(nvl, name, type);
1621 return (nvpair_value_common(nvp, type, nelem, data));
1625 nvlist_lookup_boolean(nvlist_t *nvl, const char *name)
1627 return (nvlist_lookup_common(nvl, name, DATA_TYPE_BOOLEAN, NULL, NULL));
1631 nvlist_lookup_boolean_value(nvlist_t *nvl, const char *name, boolean_t *val)
1633 return (nvlist_lookup_common(nvl, name,
1634 DATA_TYPE_BOOLEAN_VALUE, NULL, val));
1638 nvlist_lookup_byte(nvlist_t *nvl, const char *name, uchar_t *val)
1640 return (nvlist_lookup_common(nvl, name, DATA_TYPE_BYTE, NULL, val));
1644 nvlist_lookup_int8(nvlist_t *nvl, const char *name, int8_t *val)
1646 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT8, NULL, val));
1650 nvlist_lookup_uint8(nvlist_t *nvl, const char *name, uint8_t *val)
1652 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT8, NULL, val));
1656 nvlist_lookup_int16(nvlist_t *nvl, const char *name, int16_t *val)
1658 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT16, NULL, val));
1662 nvlist_lookup_uint16(nvlist_t *nvl, const char *name, uint16_t *val)
1664 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT16, NULL, val));
1668 nvlist_lookup_int32(nvlist_t *nvl, const char *name, int32_t *val)
1670 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT32, NULL, val));
1674 nvlist_lookup_uint32(nvlist_t *nvl, const char *name, uint32_t *val)
1676 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT32, NULL, val));
1680 nvlist_lookup_int64(nvlist_t *nvl, const char *name, int64_t *val)
1682 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT64, NULL, val));
1686 nvlist_lookup_uint64(nvlist_t *nvl, const char *name, uint64_t *val)
1688 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT64, NULL, val));
1691 #if !defined(_KERNEL)
1693 nvlist_lookup_double(nvlist_t *nvl, const char *name, double *val)
1695 return (nvlist_lookup_common(nvl, name, DATA_TYPE_DOUBLE, NULL, val));
1700 nvlist_lookup_string(nvlist_t *nvl, const char *name, char **val)
1702 return (nvlist_lookup_common(nvl, name, DATA_TYPE_STRING, NULL, val));
1706 nvlist_lookup_nvlist(nvlist_t *nvl, const char *name, nvlist_t **val)
1708 return (nvlist_lookup_common(nvl, name, DATA_TYPE_NVLIST, NULL, val));
1712 nvlist_lookup_boolean_array(nvlist_t *nvl, const char *name,
1713 boolean_t **a, uint_t *n)
1715 return (nvlist_lookup_common(nvl, name,
1716 DATA_TYPE_BOOLEAN_ARRAY, n, a));
1720 nvlist_lookup_byte_array(nvlist_t *nvl, const char *name,
1721 uchar_t **a, uint_t *n)
1723 return (nvlist_lookup_common(nvl, name, DATA_TYPE_BYTE_ARRAY, n, a));
1727 nvlist_lookup_int8_array(nvlist_t *nvl, const char *name, int8_t **a, uint_t *n)
1729 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT8_ARRAY, n, a));
1733 nvlist_lookup_uint8_array(nvlist_t *nvl, const char *name,
1734 uint8_t **a, uint_t *n)
1736 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT8_ARRAY, n, a));
1740 nvlist_lookup_int16_array(nvlist_t *nvl, const char *name,
1741 int16_t **a, uint_t *n)
1743 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT16_ARRAY, n, a));
1747 nvlist_lookup_uint16_array(nvlist_t *nvl, const char *name,
1748 uint16_t **a, uint_t *n)
1750 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT16_ARRAY, n, a));
1754 nvlist_lookup_int32_array(nvlist_t *nvl, const char *name,
1755 int32_t **a, uint_t *n)
1757 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT32_ARRAY, n, a));
1761 nvlist_lookup_uint32_array(nvlist_t *nvl, const char *name,
1762 uint32_t **a, uint_t *n)
1764 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT32_ARRAY, n, a));
1768 nvlist_lookup_int64_array(nvlist_t *nvl, const char *name,
1769 int64_t **a, uint_t *n)
1771 return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT64_ARRAY, n, a));
1775 nvlist_lookup_uint64_array(nvlist_t *nvl, const char *name,
1776 uint64_t **a, uint_t *n)
1778 return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT64_ARRAY, n, a));
1782 nvlist_lookup_string_array(nvlist_t *nvl, const char *name,
1783 char ***a, uint_t *n)
1785 return (nvlist_lookup_common(nvl, name, DATA_TYPE_STRING_ARRAY, n, a));
1789 nvlist_lookup_nvlist_array(nvlist_t *nvl, const char *name,
1790 nvlist_t ***a, uint_t *n)
1792 return (nvlist_lookup_common(nvl, name, DATA_TYPE_NVLIST_ARRAY, n, a));
1796 nvlist_lookup_hrtime(nvlist_t *nvl, const char *name, hrtime_t *val)
1798 return (nvlist_lookup_common(nvl, name, DATA_TYPE_HRTIME, NULL, val));
1802 nvlist_lookup_pairs(nvlist_t *nvl, int flag, ...)
1806 int noentok = (flag & NV_FLAG_NOENTOK ? 1 : 0);
1810 while (ret == 0 && (name = va_arg(ap, char *)) != NULL) {
1815 switch (type = va_arg(ap, data_type_t)) {
1816 case DATA_TYPE_BOOLEAN:
1817 ret = nvlist_lookup_common(nvl, name, type, NULL, NULL);
1820 case DATA_TYPE_BOOLEAN_VALUE:
1821 case DATA_TYPE_BYTE:
1822 case DATA_TYPE_INT8:
1823 case DATA_TYPE_UINT8:
1824 case DATA_TYPE_INT16:
1825 case DATA_TYPE_UINT16:
1826 case DATA_TYPE_INT32:
1827 case DATA_TYPE_UINT32:
1828 case DATA_TYPE_INT64:
1829 case DATA_TYPE_UINT64:
1830 case DATA_TYPE_HRTIME:
1831 case DATA_TYPE_STRING:
1832 case DATA_TYPE_NVLIST:
1833 #if !defined(_KERNEL)
1834 case DATA_TYPE_DOUBLE:
1836 val = va_arg(ap, void *);
1837 ret = nvlist_lookup_common(nvl, name, type, NULL, val);
1840 case DATA_TYPE_BYTE_ARRAY:
1841 case DATA_TYPE_BOOLEAN_ARRAY:
1842 case DATA_TYPE_INT8_ARRAY:
1843 case DATA_TYPE_UINT8_ARRAY:
1844 case DATA_TYPE_INT16_ARRAY:
1845 case DATA_TYPE_UINT16_ARRAY:
1846 case DATA_TYPE_INT32_ARRAY:
1847 case DATA_TYPE_UINT32_ARRAY:
1848 case DATA_TYPE_INT64_ARRAY:
1849 case DATA_TYPE_UINT64_ARRAY:
1850 case DATA_TYPE_STRING_ARRAY:
1851 case DATA_TYPE_NVLIST_ARRAY:
1852 val = va_arg(ap, void *);
1853 nelem = va_arg(ap, uint_t *);
1854 ret = nvlist_lookup_common(nvl, name, type, nelem, val);
1861 if (ret == ENOENT && noentok)
1870 * Find the 'name'ed nvpair in the nvlist 'nvl'. If 'name' found, the function
1871 * returns zero and a pointer to the matching nvpair is returned in '*ret'
1872 * (given 'ret' is non-NULL). If 'sep' is specified then 'name' will penitrate
1873 * multiple levels of embedded nvlists, with 'sep' as the separator. As an
1874 * example, if sep is '.', name might look like: "a" or "a.b" or "a.c[3]" or
1875 * "a.d[3].e[1]". This matches the C syntax for array embed (for convenience,
1876 * code also supports "a.d[3]e[1]" syntax).
1878 * If 'ip' is non-NULL and the last name component is an array, return the
1879 * value of the "...[index]" array index in *ip. For an array reference that
1880 * is not indexed, *ip will be returned as -1. If there is a syntax error in
1881 * 'name', and 'ep' is non-NULL then *ep will be set to point to the location
1882 * inside the 'name' string where the syntax error was detected.
1885 nvlist_lookup_nvpair_ei_sep(nvlist_t *nvl, const char *name, const char sep,
1886 nvpair_t **ret, int *ip, char **ep)
1897 *ip = -1; /* not indexed */
1901 if ((nvl == NULL) || (name == NULL))
1906 /* step through components of name */
1907 for (np = name; np && *np; np = sepp) {
1908 /* ensure unique names */
1909 if (!(nvl->nvl_nvflag & NV_UNIQUE_NAME))
1912 /* skip white space */
1913 skip_whitespace(np);
1917 /* set 'sepp' to end of current component 'np' */
1919 sepp = strchr(np, sep);
1923 /* find start of next "[ index ]..." */
1924 idxp = strchr(np, '[');
1926 /* if sepp comes first, set idxp to NULL */
1927 if (sepp && idxp && (sepp < idxp))
1931 * At this point 'idxp' is set if there is an index
1932 * expected for the current component.
1935 /* set 'n' to length of current 'np' name component */
1938 /* keep sepp up to date for *ep use as we advance */
1939 skip_whitespace(idxp);
1942 /* determine the index value */
1943 #if defined(_KERNEL)
1944 if (ddi_strtol(idxp, &idxep, 0, &idx))
1947 idx = strtol(idxp, &idxep, 0);
1952 /* keep sepp up to date for *ep use as we advance */
1955 /* skip white space index value and check for ']' */
1956 skip_whitespace(sepp);
1960 /* for embedded arrays, support C syntax: "a[1].b" */
1961 skip_whitespace(sepp);
1962 if (sep && (*sepp == sep))
1970 /* trim trailing whitespace by reducing length of 'np' */
1973 for (n--; (np[n] == ' ') || (np[n] == '\t'); n--)
1977 /* skip whitespace, and set sepp to NULL if complete */
1979 skip_whitespace(sepp);
1986 * o 'n' is the length of current 'np' component.
1987 * o 'idxp' is set if there was an index, and value 'idx'.
1988 * o 'sepp' is set to the beginning of the next component,
1989 * and set to NULL if we have no more components.
1991 * Search for nvpair with matching component name.
1993 for (nvp = nvlist_next_nvpair(nvl, NULL); nvp != NULL;
1994 nvp = nvlist_next_nvpair(nvl, nvp)) {
1996 /* continue if no match on name */
1997 if (strncmp(np, nvpair_name(nvp), n) ||
1998 (strlen(nvpair_name(nvp)) != n))
2001 /* if indexed, verify type is array oriented */
2002 if (idxp && !nvpair_type_is_array(nvp))
2006 * Full match found, return nvp and idx if this
2007 * was the last component.
2013 *ip = (int)idx; /* return index */
2014 return (0); /* found */
2018 * More components: current match must be
2019 * of DATA_TYPE_NVLIST or DATA_TYPE_NVLIST_ARRAY
2020 * to support going deeper.
2022 if (nvpair_type(nvp) == DATA_TYPE_NVLIST) {
2023 nvl = EMBEDDED_NVL(nvp);
2025 } else if (nvpair_type(nvp) == DATA_TYPE_NVLIST_ARRAY) {
2026 (void) nvpair_value_nvlist_array(nvp,
2027 &nva, (uint_t *)&n);
2028 if ((n < 0) || (idx >= n))
2034 /* type does not support more levels */
2038 goto fail; /* 'name' not found */
2040 /* search for match of next component in embedded 'nvl' list */
2043 fail: if (ep && sepp)
2049 * Return pointer to nvpair with specified 'name'.
2052 nvlist_lookup_nvpair(nvlist_t *nvl, const char *name, nvpair_t **ret)
2054 return (nvlist_lookup_nvpair_ei_sep(nvl, name, 0, ret, NULL, NULL));
2058 * Determine if named nvpair exists in nvlist (use embedded separator of '.'
2059 * and return array index). See nvlist_lookup_nvpair_ei_sep for more detailed
2062 int nvlist_lookup_nvpair_embedded_index(nvlist_t *nvl,
2063 const char *name, nvpair_t **ret, int *ip, char **ep)
2065 return (nvlist_lookup_nvpair_ei_sep(nvl, name, '.', ret, ip, ep));
2069 nvlist_exists(nvlist_t *nvl, const char *name)
2075 if (name == NULL || nvl == NULL ||
2076 (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
2079 for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) {
2080 nvp = &curr->nvi_nvp;
2082 if (strcmp(name, NVP_NAME(nvp)) == 0)
2090 nvpair_value_boolean_value(nvpair_t *nvp, boolean_t *val)
2092 return (nvpair_value_common(nvp, DATA_TYPE_BOOLEAN_VALUE, NULL, val));
2096 nvpair_value_byte(nvpair_t *nvp, uchar_t *val)
2098 return (nvpair_value_common(nvp, DATA_TYPE_BYTE, NULL, val));
2102 nvpair_value_int8(nvpair_t *nvp, int8_t *val)
2104 return (nvpair_value_common(nvp, DATA_TYPE_INT8, NULL, val));
2108 nvpair_value_uint8(nvpair_t *nvp, uint8_t *val)
2110 return (nvpair_value_common(nvp, DATA_TYPE_UINT8, NULL, val));
2114 nvpair_value_int16(nvpair_t *nvp, int16_t *val)
2116 return (nvpair_value_common(nvp, DATA_TYPE_INT16, NULL, val));
2120 nvpair_value_uint16(nvpair_t *nvp, uint16_t *val)
2122 return (nvpair_value_common(nvp, DATA_TYPE_UINT16, NULL, val));
2126 nvpair_value_int32(nvpair_t *nvp, int32_t *val)
2128 return (nvpair_value_common(nvp, DATA_TYPE_INT32, NULL, val));
2132 nvpair_value_uint32(nvpair_t *nvp, uint32_t *val)
2134 return (nvpair_value_common(nvp, DATA_TYPE_UINT32, NULL, val));
2138 nvpair_value_int64(nvpair_t *nvp, int64_t *val)
2140 return (nvpair_value_common(nvp, DATA_TYPE_INT64, NULL, val));
2144 nvpair_value_uint64(nvpair_t *nvp, uint64_t *val)
2146 return (nvpair_value_common(nvp, DATA_TYPE_UINT64, NULL, val));
2149 #if !defined(_KERNEL)
2151 nvpair_value_double(nvpair_t *nvp, double *val)
2153 return (nvpair_value_common(nvp, DATA_TYPE_DOUBLE, NULL, val));
2158 nvpair_value_string(nvpair_t *nvp, char **val)
2160 return (nvpair_value_common(nvp, DATA_TYPE_STRING, NULL, val));
2164 nvpair_value_nvlist(nvpair_t *nvp, nvlist_t **val)
2166 return (nvpair_value_common(nvp, DATA_TYPE_NVLIST, NULL, val));
2170 nvpair_value_boolean_array(nvpair_t *nvp, boolean_t **val, uint_t *nelem)
2172 return (nvpair_value_common(nvp, DATA_TYPE_BOOLEAN_ARRAY, nelem, val));
2176 nvpair_value_byte_array(nvpair_t *nvp, uchar_t **val, uint_t *nelem)
2178 return (nvpair_value_common(nvp, DATA_TYPE_BYTE_ARRAY, nelem, val));
2182 nvpair_value_int8_array(nvpair_t *nvp, int8_t **val, uint_t *nelem)
2184 return (nvpair_value_common(nvp, DATA_TYPE_INT8_ARRAY, nelem, val));
2188 nvpair_value_uint8_array(nvpair_t *nvp, uint8_t **val, uint_t *nelem)
2190 return (nvpair_value_common(nvp, DATA_TYPE_UINT8_ARRAY, nelem, val));
2194 nvpair_value_int16_array(nvpair_t *nvp, int16_t **val, uint_t *nelem)
2196 return (nvpair_value_common(nvp, DATA_TYPE_INT16_ARRAY, nelem, val));
2200 nvpair_value_uint16_array(nvpair_t *nvp, uint16_t **val, uint_t *nelem)
2202 return (nvpair_value_common(nvp, DATA_TYPE_UINT16_ARRAY, nelem, val));
2206 nvpair_value_int32_array(nvpair_t *nvp, int32_t **val, uint_t *nelem)
2208 return (nvpair_value_common(nvp, DATA_TYPE_INT32_ARRAY, nelem, val));
2212 nvpair_value_uint32_array(nvpair_t *nvp, uint32_t **val, uint_t *nelem)
2214 return (nvpair_value_common(nvp, DATA_TYPE_UINT32_ARRAY, nelem, val));
2218 nvpair_value_int64_array(nvpair_t *nvp, int64_t **val, uint_t *nelem)
2220 return (nvpair_value_common(nvp, DATA_TYPE_INT64_ARRAY, nelem, val));
2224 nvpair_value_uint64_array(nvpair_t *nvp, uint64_t **val, uint_t *nelem)
2226 return (nvpair_value_common(nvp, DATA_TYPE_UINT64_ARRAY, nelem, val));
2230 nvpair_value_string_array(nvpair_t *nvp, char ***val, uint_t *nelem)
2232 return (nvpair_value_common(nvp, DATA_TYPE_STRING_ARRAY, nelem, val));
2236 nvpair_value_nvlist_array(nvpair_t *nvp, nvlist_t ***val, uint_t *nelem)
2238 return (nvpair_value_common(nvp, DATA_TYPE_NVLIST_ARRAY, nelem, val));
2242 nvpair_value_hrtime(nvpair_t *nvp, hrtime_t *val)
2244 return (nvpair_value_common(nvp, DATA_TYPE_HRTIME, NULL, val));
2248 * Add specified pair to the list.
2251 nvlist_add_nvpair(nvlist_t *nvl, nvpair_t *nvp)
2253 if (nvl == NULL || nvp == NULL)
2256 return (nvlist_add_common(nvl, NVP_NAME(nvp), NVP_TYPE(nvp),
2257 NVP_NELEM(nvp), NVP_VALUE(nvp)));
2261 * Merge the supplied nvlists and put the result in dst.
2262 * The merged list will contain all names specified in both lists,
2263 * the values are taken from nvl in the case of duplicates.
2264 * Return 0 on success.
2268 nvlist_merge(nvlist_t *dst, nvlist_t *nvl, int flag)
2270 if (nvl == NULL || dst == NULL)
2274 return (nvlist_copy_pairs(nvl, dst));
2280 * Encoding related routines
2282 #define NVS_OP_ENCODE 0
2283 #define NVS_OP_DECODE 1
2284 #define NVS_OP_GETSIZE 2
2286 typedef struct nvs_ops nvs_ops_t;
2290 const nvs_ops_t *nvs_ops;
2297 * nvs operations are:
2299 * encoding / decoding of an nvlist header (nvlist_t)
2300 * calculates the size used for header and end detection
2303 * responsible for the first part of encoding / decoding of an nvpair
2304 * calculates the decoded size of an nvpair
2307 * second part of encoding / decoding of an nvpair
2310 * calculates the encoding size of an nvpair
2313 * encodes the end detection mark (zeros).
2316 int (*nvs_nvlist)(nvstream_t *, nvlist_t *, size_t *);
2317 int (*nvs_nvpair)(nvstream_t *, nvpair_t *, size_t *);
2318 int (*nvs_nvp_op)(nvstream_t *, nvpair_t *);
2319 int (*nvs_nvp_size)(nvstream_t *, nvpair_t *, size_t *);
2320 int (*nvs_nvl_fini)(nvstream_t *);
2324 char nvh_encoding; /* nvs encoding method */
2325 char nvh_endian; /* nvs endian */
2326 char nvh_reserved1; /* reserved for future use */
2327 char nvh_reserved2; /* reserved for future use */
2331 nvs_encode_pairs(nvstream_t *nvs, nvlist_t *nvl)
2333 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
2337 * Walk nvpair in list and encode each nvpair
2339 for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next)
2340 if (nvs->nvs_ops->nvs_nvpair(nvs, &curr->nvi_nvp, NULL) != 0)
2343 return (nvs->nvs_ops->nvs_nvl_fini(nvs));
2347 nvs_decode_pairs(nvstream_t *nvs, nvlist_t *nvl)
2354 * Get decoded size of next pair in stream, alloc
2355 * memory for nvpair_t, then decode the nvpair
2357 while ((err = nvs->nvs_ops->nvs_nvpair(nvs, NULL, &nvsize)) == 0) {
2358 if (nvsize == 0) /* end of list */
2361 /* make sure len makes sense */
2362 if (nvsize < NVP_SIZE_CALC(1, 0))
2365 if ((nvp = nvp_buf_alloc(nvl, nvsize)) == NULL)
2368 if ((err = nvs->nvs_ops->nvs_nvp_op(nvs, nvp)) != 0) {
2369 nvp_buf_free(nvl, nvp);
2373 if (i_validate_nvpair(nvp) != 0) {
2375 nvp_buf_free(nvl, nvp);
2379 err = nvt_add_nvpair(nvl, nvp);
2382 nvp_buf_free(nvl, nvp);
2385 nvp_buf_link(nvl, nvp);
2391 nvs_getsize_pairs(nvstream_t *nvs, nvlist_t *nvl, size_t *buflen)
2393 nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv;
2395 uint64_t nvsize = *buflen;
2399 * Get encoded size of nvpairs in nvlist
2401 for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) {
2402 if (nvs->nvs_ops->nvs_nvp_size(nvs, &curr->nvi_nvp, &size) != 0)
2405 if ((nvsize += size) > INT32_MAX)
2414 nvs_operation(nvstream_t *nvs, nvlist_t *nvl, size_t *buflen)
2418 if (nvl->nvl_priv == 0)
2422 * Perform the operation, starting with header, then each nvpair
2424 if ((err = nvs->nvs_ops->nvs_nvlist(nvs, nvl, buflen)) != 0)
2427 switch (nvs->nvs_op) {
2429 err = nvs_encode_pairs(nvs, nvl);
2433 err = nvs_decode_pairs(nvs, nvl);
2436 case NVS_OP_GETSIZE:
2437 err = nvs_getsize_pairs(nvs, nvl, buflen);
2448 nvs_embedded(nvstream_t *nvs, nvlist_t *embedded)
2450 switch (nvs->nvs_op) {
2451 case NVS_OP_ENCODE: {
2454 if (nvs->nvs_recursion >= nvpair_max_recursion)
2456 nvs->nvs_recursion++;
2457 err = nvs_operation(nvs, embedded, NULL);
2458 nvs->nvs_recursion--;
2461 case NVS_OP_DECODE: {
2465 if (embedded->nvl_version != NV_VERSION)
2468 if ((priv = nv_priv_alloc_embedded(nvs->nvs_priv)) == NULL)
2471 nvlist_init(embedded, embedded->nvl_nvflag, priv);
2473 if (nvs->nvs_recursion >= nvpair_max_recursion) {
2474 nvlist_free(embedded);
2477 nvs->nvs_recursion++;
2478 if ((err = nvs_operation(nvs, embedded, NULL)) != 0)
2479 nvlist_free(embedded);
2480 nvs->nvs_recursion--;
2491 nvs_embedded_nvl_array(nvstream_t *nvs, nvpair_t *nvp, size_t *size)
2493 size_t nelem = NVP_NELEM(nvp);
2494 nvlist_t **nvlp = EMBEDDED_NVL_ARRAY(nvp);
2497 switch (nvs->nvs_op) {
2499 for (i = 0; i < nelem; i++)
2500 if (nvs_embedded(nvs, nvlp[i]) != 0)
2504 case NVS_OP_DECODE: {
2505 size_t len = nelem * sizeof (uint64_t);
2506 nvlist_t *embedded = (nvlist_t *)((uintptr_t)nvlp + len);
2508 bzero(nvlp, len); /* don't trust packed data */
2509 for (i = 0; i < nelem; i++) {
2510 if (nvs_embedded(nvs, embedded) != 0) {
2515 nvlp[i] = embedded++;
2519 case NVS_OP_GETSIZE: {
2520 uint64_t nvsize = 0;
2522 for (i = 0; i < nelem; i++) {
2525 if (nvs_operation(nvs, nvlp[i], &nvp_sz) != 0)
2528 if ((nvsize += nvp_sz) > INT32_MAX)
2542 static int nvs_native(nvstream_t *, nvlist_t *, char *, size_t *);
2543 static int nvs_xdr(nvstream_t *, nvlist_t *, char *, size_t *);
2546 * Common routine for nvlist operations:
2547 * encode, decode, getsize (encoded size).
2550 nvlist_common(nvlist_t *nvl, char *buf, size_t *buflen, int encoding,
2556 #ifdef _LITTLE_ENDIAN
2557 int host_endian = 1;
2559 int host_endian = 0;
2560 #endif /* _LITTLE_ENDIAN */
2561 nvs_header_t *nvh = (void *)buf;
2563 if (buflen == NULL || nvl == NULL ||
2564 (nvs.nvs_priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL)
2567 nvs.nvs_op = nvs_op;
2568 nvs.nvs_recursion = 0;
2571 * For NVS_OP_ENCODE and NVS_OP_DECODE make sure an nvlist and
2572 * a buffer is allocated. The first 4 bytes in the buffer are
2573 * used for encoding method and host endian.
2577 if (buf == NULL || *buflen < sizeof (nvs_header_t))
2580 nvh->nvh_encoding = encoding;
2581 nvh->nvh_endian = nvl_endian = host_endian;
2582 nvh->nvh_reserved1 = 0;
2583 nvh->nvh_reserved2 = 0;
2587 if (buf == NULL || *buflen < sizeof (nvs_header_t))
2590 /* get method of encoding from first byte */
2591 encoding = nvh->nvh_encoding;
2592 nvl_endian = nvh->nvh_endian;
2595 case NVS_OP_GETSIZE:
2596 nvl_endian = host_endian;
2599 * add the size for encoding
2601 *buflen = sizeof (nvs_header_t);
2609 * Create an nvstream with proper encoding method
2612 case NV_ENCODE_NATIVE:
2614 * check endianness, in case we are unpacking
2617 if (nvl_endian != host_endian)
2619 err = nvs_native(&nvs, nvl, buf, buflen);
2622 err = nvs_xdr(&nvs, nvl, buf, buflen);
2633 nvlist_size(nvlist_t *nvl, size_t *size, int encoding)
2635 return (nvlist_common(nvl, NULL, size, encoding, NVS_OP_GETSIZE));
2639 * Pack nvlist into contiguous memory
2642 nvlist_pack(nvlist_t *nvl, char **bufp, size_t *buflen, int encoding,
2645 return (nvlist_xpack(nvl, bufp, buflen, encoding,
2646 nvlist_nv_alloc(kmflag)));
2650 nvlist_xpack(nvlist_t *nvl, char **bufp, size_t *buflen, int encoding,
2658 if (nva == NULL || nvl == NULL || bufp == NULL || buflen == NULL)
2662 return (nvlist_common(nvl, *bufp, buflen, encoding,
2666 * Here is a difficult situation:
2667 * 1. The nvlist has fixed allocator properties.
2668 * All other nvlist routines (like nvlist_add_*, ...) use
2670 * 2. When using nvlist_pack() the user can specify their own
2671 * allocator properties (e.g. by using KM_NOSLEEP).
2673 * We use the user specified properties (2). A clearer solution
2674 * will be to remove the kmflag from nvlist_pack(), but we will
2675 * not change the interface.
2677 nv_priv_init(&nvpriv, nva, 0);
2679 if ((err = nvlist_size(nvl, &alloc_size, encoding)))
2682 if ((buf = nv_mem_zalloc(&nvpriv, alloc_size)) == NULL)
2685 if ((err = nvlist_common(nvl, buf, &alloc_size, encoding,
2686 NVS_OP_ENCODE)) != 0) {
2687 nv_mem_free(&nvpriv, buf, alloc_size);
2689 *buflen = alloc_size;
2697 * Unpack buf into an nvlist_t
2700 nvlist_unpack(char *buf, size_t buflen, nvlist_t **nvlp, int kmflag)
2702 return (nvlist_xunpack(buf, buflen, nvlp, nvlist_nv_alloc(kmflag)));
2706 nvlist_xunpack(char *buf, size_t buflen, nvlist_t **nvlp, nv_alloc_t *nva)
2714 if ((err = nvlist_xalloc(&nvl, 0, nva)) != 0)
2717 if ((err = nvlist_common(nvl, buf, &buflen, NV_ENCODE_NATIVE,
2718 NVS_OP_DECODE)) != 0)
2727 * Native encoding functions
2731 * This structure is used when decoding a packed nvpair in
2732 * the native format. n_base points to a buffer containing the
2733 * packed nvpair. n_end is a pointer to the end of the buffer.
2734 * (n_end actually points to the first byte past the end of the
2735 * buffer.) n_curr is a pointer that lies between n_base and n_end.
2736 * It points to the current data that we are decoding.
2737 * The amount of data left in the buffer is equal to n_end - n_curr.
2738 * n_flag is used to recognize a packed embedded list.
2747 nvs_native_create(nvstream_t *nvs, nvs_native_t *native, char *buf,
2750 switch (nvs->nvs_op) {
2753 nvs->nvs_private = native;
2754 native->n_curr = native->n_base = buf;
2755 native->n_end = buf + buflen;
2759 case NVS_OP_GETSIZE:
2760 nvs->nvs_private = native;
2761 native->n_curr = native->n_base = native->n_end = NULL;
2771 nvs_native_destroy(nvstream_t *nvs)
2776 native_cp(nvstream_t *nvs, void *buf, size_t size)
2778 nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
2780 if (native->n_curr + size > native->n_end)
2784 * The bcopy() below eliminates alignment requirement
2785 * on the buffer (stream) and is preferred over direct access.
2787 switch (nvs->nvs_op) {
2789 bcopy(buf, native->n_curr, size);
2792 bcopy(native->n_curr, buf, size);
2798 native->n_curr += size;
2803 * operate on nvlist_t header
2806 nvs_native_nvlist(nvstream_t *nvs, nvlist_t *nvl, size_t *size)
2808 nvs_native_t *native = nvs->nvs_private;
2810 switch (nvs->nvs_op) {
2814 return (0); /* packed embedded list */
2818 /* copy version and nvflag of the nvlist_t */
2819 if (native_cp(nvs, &nvl->nvl_version, sizeof (int32_t)) != 0 ||
2820 native_cp(nvs, &nvl->nvl_nvflag, sizeof (int32_t)) != 0)
2825 case NVS_OP_GETSIZE:
2827 * if calculate for packed embedded list
2828 * 4 for end of the embedded list
2830 * 2 * sizeof (int32_t) for nvl_version and nvl_nvflag
2831 * and 4 for end of the entire list
2833 if (native->n_flag) {
2837 *size += 2 * sizeof (int32_t) + 4;
2848 nvs_native_nvl_fini(nvstream_t *nvs)
2850 if (nvs->nvs_op == NVS_OP_ENCODE) {
2851 nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
2853 * Add 4 zero bytes at end of nvlist. They are used
2854 * for end detection by the decode routine.
2856 if (native->n_curr + sizeof (int) > native->n_end)
2859 bzero(native->n_curr, sizeof (int));
2860 native->n_curr += sizeof (int);
2867 nvpair_native_embedded(nvstream_t *nvs, nvpair_t *nvp)
2869 if (nvs->nvs_op == NVS_OP_ENCODE) {
2870 nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
2871 nvlist_t *packed = (void *)
2872 (native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp));
2874 * Null out the pointer that is meaningless in the packed
2875 * structure. The address may not be aligned, so we have
2878 bzero((char *)packed + offsetof(nvlist_t, nvl_priv),
2882 return (nvs_embedded(nvs, EMBEDDED_NVL(nvp)));
2886 nvpair_native_embedded_array(nvstream_t *nvs, nvpair_t *nvp)
2888 if (nvs->nvs_op == NVS_OP_ENCODE) {
2889 nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
2890 char *value = native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp);
2891 size_t len = NVP_NELEM(nvp) * sizeof (uint64_t);
2892 nvlist_t *packed = (nvlist_t *)((uintptr_t)value + len);
2895 * Null out pointers that are meaningless in the packed
2896 * structure. The addresses may not be aligned, so we have
2901 for (i = 0; i < NVP_NELEM(nvp); i++, packed++)
2903 * Null out the pointer that is meaningless in the
2904 * packed structure. The address may not be aligned,
2905 * so we have to use bzero.
2907 bzero((char *)packed + offsetof(nvlist_t, nvl_priv),
2911 return (nvs_embedded_nvl_array(nvs, nvp, NULL));
2915 nvpair_native_string_array(nvstream_t *nvs, nvpair_t *nvp)
2917 switch (nvs->nvs_op) {
2918 case NVS_OP_ENCODE: {
2919 nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
2920 uint64_t *strp = (void *)
2921 (native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp));
2923 * Null out pointers that are meaningless in the packed
2924 * structure. The addresses may not be aligned, so we have
2927 bzero(strp, NVP_NELEM(nvp) * sizeof (uint64_t));
2930 case NVS_OP_DECODE: {
2931 char **strp = (void *)NVP_VALUE(nvp);
2932 char *buf = ((char *)strp + NVP_NELEM(nvp) * sizeof (uint64_t));
2935 for (i = 0; i < NVP_NELEM(nvp); i++) {
2937 buf += strlen(buf) + 1;
2945 nvs_native_nvp_op(nvstream_t *nvs, nvpair_t *nvp)
2952 * We do the initial bcopy of the data before we look at
2953 * the nvpair type, because when we're decoding, we won't
2954 * have the correct values for the pair until we do the bcopy.
2956 switch (nvs->nvs_op) {
2959 if (native_cp(nvs, nvp, nvp->nvp_size) != 0)
2966 /* verify nvp_name_sz, check the name string length */
2967 if (i_validate_nvpair_name(nvp) != 0)
2970 type = NVP_TYPE(nvp);
2973 * Verify type and nelem and get the value size.
2974 * In case of data types DATA_TYPE_STRING and DATA_TYPE_STRING_ARRAY
2975 * is the size of the string(s) excluded.
2977 if ((value_sz = i_get_value_size(type, NULL, NVP_NELEM(nvp))) < 0)
2980 if (NVP_SIZE_CALC(nvp->nvp_name_sz, value_sz) > nvp->nvp_size)
2984 case DATA_TYPE_NVLIST:
2985 ret = nvpair_native_embedded(nvs, nvp);
2987 case DATA_TYPE_NVLIST_ARRAY:
2988 ret = nvpair_native_embedded_array(nvs, nvp);
2990 case DATA_TYPE_STRING_ARRAY:
2991 nvpair_native_string_array(nvs, nvp);
3001 nvs_native_nvp_size(nvstream_t *nvs, nvpair_t *nvp, size_t *size)
3003 uint64_t nvp_sz = nvp->nvp_size;
3005 switch (NVP_TYPE(nvp)) {
3006 case DATA_TYPE_NVLIST: {
3009 if (nvs_operation(nvs, EMBEDDED_NVL(nvp), &nvsize) != 0)
3015 case DATA_TYPE_NVLIST_ARRAY: {
3018 if (nvs_embedded_nvl_array(nvs, nvp, &nvsize) != 0)
3028 if (nvp_sz > INT32_MAX)
3037 nvs_native_nvpair(nvstream_t *nvs, nvpair_t *nvp, size_t *size)
3039 switch (nvs->nvs_op) {
3041 return (nvs_native_nvp_op(nvs, nvp));
3043 case NVS_OP_DECODE: {
3044 nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
3047 /* try to read the size value from the stream */
3048 if (native->n_curr + sizeof (int32_t) > native->n_end)
3050 bcopy(native->n_curr, &decode_len, sizeof (int32_t));
3052 /* sanity check the size value */
3053 if (decode_len < 0 ||
3054 decode_len > native->n_end - native->n_curr)
3060 * If at the end of the stream then move the cursor
3061 * forward, otherwise nvpair_native_op() will read
3062 * the entire nvpair at the same cursor position.
3065 native->n_curr += sizeof (int32_t);
3076 static const nvs_ops_t nvs_native_ops = {
3077 .nvs_nvlist = nvs_native_nvlist,
3078 .nvs_nvpair = nvs_native_nvpair,
3079 .nvs_nvp_op = nvs_native_nvp_op,
3080 .nvs_nvp_size = nvs_native_nvp_size,
3081 .nvs_nvl_fini = nvs_native_nvl_fini
3085 nvs_native(nvstream_t *nvs, nvlist_t *nvl, char *buf, size_t *buflen)
3087 nvs_native_t native;
3090 nvs->nvs_ops = &nvs_native_ops;
3092 if ((err = nvs_native_create(nvs, &native, buf + sizeof (nvs_header_t),
3093 *buflen - sizeof (nvs_header_t))) != 0)
3096 err = nvs_operation(nvs, nvl, buflen);
3098 nvs_native_destroy(nvs);
3104 * XDR encoding functions
3106 * An xdr packed nvlist is encoded as:
3108 * - encoding method and host endian (4 bytes)
3109 * - nvl_version (4 bytes)
3110 * - nvl_nvflag (4 bytes)
3112 * - encoded nvpairs, the format of one xdr encoded nvpair is:
3113 * - encoded size of the nvpair (4 bytes)
3114 * - decoded size of the nvpair (4 bytes)
3115 * - name string, (4 + sizeof(NV_ALIGN4(string))
3116 * a string is coded as size (4 bytes) and data
3117 * - data type (4 bytes)
3118 * - number of elements in the nvpair (4 bytes)
3121 * - 2 zero's for end of the entire list (8 bytes)
3124 nvs_xdr_create(nvstream_t *nvs, XDR *xdr, char *buf, size_t buflen)
3126 /* xdr data must be 4 byte aligned */
3127 if ((ulong_t)buf % 4 != 0)
3130 switch (nvs->nvs_op) {
3132 xdrmem_create(xdr, buf, (uint_t)buflen, XDR_ENCODE);
3133 nvs->nvs_private = xdr;
3136 xdrmem_create(xdr, buf, (uint_t)buflen, XDR_DECODE);
3137 nvs->nvs_private = xdr;
3139 case NVS_OP_GETSIZE:
3140 nvs->nvs_private = NULL;
3148 nvs_xdr_destroy(nvstream_t *nvs)
3150 switch (nvs->nvs_op) {
3153 xdr_destroy((XDR *)nvs->nvs_private);
3161 nvs_xdr_nvlist(nvstream_t *nvs, nvlist_t *nvl, size_t *size)
3163 switch (nvs->nvs_op) {
3165 case NVS_OP_DECODE: {
3166 XDR *xdr = nvs->nvs_private;
3168 if (!xdr_int(xdr, &nvl->nvl_version) ||
3169 !xdr_u_int(xdr, &nvl->nvl_nvflag))
3173 case NVS_OP_GETSIZE: {
3175 * 2 * 4 for nvl_version + nvl_nvflag
3176 * and 8 for end of the entire list
3188 nvs_xdr_nvl_fini(nvstream_t *nvs)
3190 if (nvs->nvs_op == NVS_OP_ENCODE) {
3191 XDR *xdr = nvs->nvs_private;
3194 if (!xdr_int(xdr, &zero) || !xdr_int(xdr, &zero))
3202 * The format of xdr encoded nvpair is:
3203 * encode_size, decode_size, name string, data type, nelem, data
3206 nvs_xdr_nvp_op(nvstream_t *nvs, nvpair_t *nvp)
3210 char *buf_end = (char *)nvp + nvp->nvp_size;
3212 uint_t nelem, buflen;
3214 XDR *xdr = nvs->nvs_private;
3216 ASSERT(xdr != NULL && nvp != NULL);
3219 if ((buf = NVP_NAME(nvp)) >= buf_end)
3221 buflen = buf_end - buf;
3223 if (!xdr_string(xdr, &buf, buflen - 1))
3225 nvp->nvp_name_sz = strlen(buf) + 1;
3227 /* type and nelem */
3228 if (!xdr_int(xdr, (int *)&nvp->nvp_type) ||
3229 !xdr_int(xdr, &nvp->nvp_value_elem))
3232 type = NVP_TYPE(nvp);
3233 nelem = nvp->nvp_value_elem;
3236 * Verify type and nelem and get the value size.
3237 * In case of data types DATA_TYPE_STRING and DATA_TYPE_STRING_ARRAY
3238 * is the size of the string(s) excluded.
3240 if ((value_sz = i_get_value_size(type, NULL, nelem)) < 0)
3243 /* if there is no data to extract then return */
3248 if ((buf = NVP_VALUE(nvp)) >= buf_end)
3250 buflen = buf_end - buf;
3252 if (buflen < value_sz)
3256 case DATA_TYPE_NVLIST:
3257 if (nvs_embedded(nvs, (void *)buf) == 0)
3261 case DATA_TYPE_NVLIST_ARRAY:
3262 if (nvs_embedded_nvl_array(nvs, nvp, NULL) == 0)
3266 case DATA_TYPE_BOOLEAN:
3270 case DATA_TYPE_BYTE:
3271 case DATA_TYPE_INT8:
3272 case DATA_TYPE_UINT8:
3273 ret = xdr_char(xdr, buf);
3276 case DATA_TYPE_INT16:
3277 ret = xdr_short(xdr, (void *)buf);
3280 case DATA_TYPE_UINT16:
3281 ret = xdr_u_short(xdr, (void *)buf);
3284 case DATA_TYPE_BOOLEAN_VALUE:
3285 case DATA_TYPE_INT32:
3286 ret = xdr_int(xdr, (void *)buf);
3289 case DATA_TYPE_UINT32:
3290 ret = xdr_u_int(xdr, (void *)buf);
3293 case DATA_TYPE_INT64:
3294 ret = xdr_longlong_t(xdr, (void *)buf);
3297 case DATA_TYPE_UINT64:
3298 ret = xdr_u_longlong_t(xdr, (void *)buf);
3301 case DATA_TYPE_HRTIME:
3303 * NOTE: must expose the definition of hrtime_t here
3305 ret = xdr_longlong_t(xdr, (void *)buf);
3307 #if !defined(_KERNEL)
3308 case DATA_TYPE_DOUBLE:
3309 ret = xdr_double(xdr, (void *)buf);
3312 case DATA_TYPE_STRING:
3313 ret = xdr_string(xdr, &buf, buflen - 1);
3316 case DATA_TYPE_BYTE_ARRAY:
3317 ret = xdr_opaque(xdr, buf, nelem);
3320 case DATA_TYPE_INT8_ARRAY:
3321 case DATA_TYPE_UINT8_ARRAY:
3322 ret = xdr_array(xdr, &buf, &nelem, buflen, sizeof (int8_t),
3323 (xdrproc_t)xdr_char);
3326 case DATA_TYPE_INT16_ARRAY:
3327 ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (int16_t),
3328 sizeof (int16_t), (xdrproc_t)xdr_short);
3331 case DATA_TYPE_UINT16_ARRAY:
3332 ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (uint16_t),
3333 sizeof (uint16_t), (xdrproc_t)xdr_u_short);
3336 case DATA_TYPE_BOOLEAN_ARRAY:
3337 case DATA_TYPE_INT32_ARRAY:
3338 ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (int32_t),
3339 sizeof (int32_t), (xdrproc_t)xdr_int);
3342 case DATA_TYPE_UINT32_ARRAY:
3343 ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (uint32_t),
3344 sizeof (uint32_t), (xdrproc_t)xdr_u_int);
3347 case DATA_TYPE_INT64_ARRAY:
3348 ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (int64_t),
3349 sizeof (int64_t), (xdrproc_t)xdr_longlong_t);
3352 case DATA_TYPE_UINT64_ARRAY:
3353 ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (uint64_t),
3354 sizeof (uint64_t), (xdrproc_t)xdr_u_longlong_t);
3357 case DATA_TYPE_STRING_ARRAY: {
3358 size_t len = nelem * sizeof (uint64_t);
3359 char **strp = (void *)buf;
3362 if (nvs->nvs_op == NVS_OP_DECODE)
3363 bzero(buf, len); /* don't trust packed data */
3365 for (i = 0; i < nelem; i++) {
3372 if (xdr_string(xdr, &buf, buflen - 1) != TRUE)
3375 if (nvs->nvs_op == NVS_OP_DECODE)
3377 len = strlen(buf) + 1;
3386 return (ret == TRUE ? 0 : EFAULT);
3390 nvs_xdr_nvp_size(nvstream_t *nvs, nvpair_t *nvp, size_t *size)
3392 data_type_t type = NVP_TYPE(nvp);
3394 * encode_size + decode_size + name string size + data type + nelem
3395 * where name string size = 4 + NV_ALIGN4(strlen(NVP_NAME(nvp)))
3397 uint64_t nvp_sz = 4 + 4 + 4 + NV_ALIGN4(strlen(NVP_NAME(nvp))) + 4 + 4;
3400 case DATA_TYPE_BOOLEAN:
3403 case DATA_TYPE_BOOLEAN_VALUE:
3404 case DATA_TYPE_BYTE:
3405 case DATA_TYPE_INT8:
3406 case DATA_TYPE_UINT8:
3407 case DATA_TYPE_INT16:
3408 case DATA_TYPE_UINT16:
3409 case DATA_TYPE_INT32:
3410 case DATA_TYPE_UINT32:
3411 nvp_sz += 4; /* 4 is the minimum xdr unit */
3414 case DATA_TYPE_INT64:
3415 case DATA_TYPE_UINT64:
3416 case DATA_TYPE_HRTIME:
3417 #if !defined(_KERNEL)
3418 case DATA_TYPE_DOUBLE:
3423 case DATA_TYPE_STRING:
3424 nvp_sz += 4 + NV_ALIGN4(strlen((char *)NVP_VALUE(nvp)));
3427 case DATA_TYPE_BYTE_ARRAY:
3428 nvp_sz += NV_ALIGN4(NVP_NELEM(nvp));
3431 case DATA_TYPE_BOOLEAN_ARRAY:
3432 case DATA_TYPE_INT8_ARRAY:
3433 case DATA_TYPE_UINT8_ARRAY:
3434 case DATA_TYPE_INT16_ARRAY:
3435 case DATA_TYPE_UINT16_ARRAY:
3436 case DATA_TYPE_INT32_ARRAY:
3437 case DATA_TYPE_UINT32_ARRAY:
3438 nvp_sz += 4 + 4 * (uint64_t)NVP_NELEM(nvp);
3441 case DATA_TYPE_INT64_ARRAY:
3442 case DATA_TYPE_UINT64_ARRAY:
3443 nvp_sz += 4 + 8 * (uint64_t)NVP_NELEM(nvp);
3446 case DATA_TYPE_STRING_ARRAY: {
3448 char **strs = (void *)NVP_VALUE(nvp);
3450 for (i = 0; i < NVP_NELEM(nvp); i++)
3451 nvp_sz += 4 + NV_ALIGN4(strlen(strs[i]));
3456 case DATA_TYPE_NVLIST:
3457 case DATA_TYPE_NVLIST_ARRAY: {
3459 int old_nvs_op = nvs->nvs_op;
3462 nvs->nvs_op = NVS_OP_GETSIZE;
3463 if (type == DATA_TYPE_NVLIST)
3464 err = nvs_operation(nvs, EMBEDDED_NVL(nvp), &nvsize);
3466 err = nvs_embedded_nvl_array(nvs, nvp, &nvsize);
3467 nvs->nvs_op = old_nvs_op;
3480 if (nvp_sz > INT32_MAX)
3490 * The NVS_XDR_MAX_LEN macro takes a packed xdr buffer of size x and estimates
3491 * the largest nvpair that could be encoded in the buffer.
3493 * See comments above nvpair_xdr_op() for the format of xdr encoding.
3494 * The size of a xdr packed nvpair without any data is 5 words.
3496 * Using the size of the data directly as an estimate would be ok
3497 * in all cases except one. If the data type is of DATA_TYPE_STRING_ARRAY
3498 * then the actual nvpair has space for an array of pointers to index
3499 * the strings. These pointers are not encoded into the packed xdr buffer.
3501 * If the data is of type DATA_TYPE_STRING_ARRAY and all the strings are
3502 * of length 0, then each string is encoded in xdr format as a single word.
3503 * Therefore when expanded to an nvpair there will be 2.25 word used for
3504 * each string. (a int64_t allocated for pointer usage, and a single char
3505 * for the null termination.)
3507 * This is the calculation performed by the NVS_XDR_MAX_LEN macro.
3509 #define NVS_XDR_HDR_LEN ((size_t)(5 * 4))
3510 #define NVS_XDR_DATA_LEN(y) (((size_t)(y) <= NVS_XDR_HDR_LEN) ? \
3511 0 : ((size_t)(y) - NVS_XDR_HDR_LEN))
3512 #define NVS_XDR_MAX_LEN(x) (NVP_SIZE_CALC(1, 0) + \
3513 (NVS_XDR_DATA_LEN(x) * 2) + \
3514 NV_ALIGN4((NVS_XDR_DATA_LEN(x) / 4)))
3517 nvs_xdr_nvpair(nvstream_t *nvs, nvpair_t *nvp, size_t *size)
3519 XDR *xdr = nvs->nvs_private;
3520 int32_t encode_len, decode_len;
3522 switch (nvs->nvs_op) {
3523 case NVS_OP_ENCODE: {
3526 if (nvs_xdr_nvp_size(nvs, nvp, &nvsize) != 0)
3529 decode_len = nvp->nvp_size;
3530 encode_len = nvsize;
3531 if (!xdr_int(xdr, &encode_len) || !xdr_int(xdr, &decode_len))
3534 return (nvs_xdr_nvp_op(nvs, nvp));
3536 case NVS_OP_DECODE: {
3537 struct xdr_bytesrec bytesrec;
3539 /* get the encode and decode size */
3540 if (!xdr_int(xdr, &encode_len) || !xdr_int(xdr, &decode_len))
3544 /* are we at the end of the stream? */
3548 /* sanity check the size parameter */
3549 if (!xdr_control(xdr, XDR_GET_BYTES_AVAIL, &bytesrec))
3552 if (*size > NVS_XDR_MAX_LEN(bytesrec.xc_num_avail))
3563 static const struct nvs_ops nvs_xdr_ops = {
3564 .nvs_nvlist = nvs_xdr_nvlist,
3565 .nvs_nvpair = nvs_xdr_nvpair,
3566 .nvs_nvp_op = nvs_xdr_nvp_op,
3567 .nvs_nvp_size = nvs_xdr_nvp_size,
3568 .nvs_nvl_fini = nvs_xdr_nvl_fini
3572 nvs_xdr(nvstream_t *nvs, nvlist_t *nvl, char *buf, size_t *buflen)
3577 nvs->nvs_ops = &nvs_xdr_ops;
3579 if ((err = nvs_xdr_create(nvs, &xdr, buf + sizeof (nvs_header_t),
3580 *buflen - sizeof (nvs_header_t))) != 0)
3583 err = nvs_operation(nvs, nvl, buflen);
3585 nvs_xdr_destroy(nvs);
3590 #if defined(_KERNEL)
3602 module_init(nvpair_init);
3603 module_exit(nvpair_fini);
3605 MODULE_DESCRIPTION("Generic name/value pair implementation");
3606 MODULE_AUTHOR(ZFS_META_AUTHOR);
3607 MODULE_LICENSE(ZFS_META_LICENSE);
3608 MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
3610 EXPORT_SYMBOL(nv_alloc_init);
3611 EXPORT_SYMBOL(nv_alloc_reset);
3612 EXPORT_SYMBOL(nv_alloc_fini);
3614 /* list management */
3615 EXPORT_SYMBOL(nvlist_alloc);
3616 EXPORT_SYMBOL(nvlist_free);
3617 EXPORT_SYMBOL(nvlist_size);
3618 EXPORT_SYMBOL(nvlist_pack);
3619 EXPORT_SYMBOL(nvlist_unpack);
3620 EXPORT_SYMBOL(nvlist_dup);
3621 EXPORT_SYMBOL(nvlist_merge);
3623 EXPORT_SYMBOL(nvlist_xalloc);
3624 EXPORT_SYMBOL(nvlist_xpack);
3625 EXPORT_SYMBOL(nvlist_xunpack);
3626 EXPORT_SYMBOL(nvlist_xdup);
3627 EXPORT_SYMBOL(nvlist_lookup_nv_alloc);
3629 EXPORT_SYMBOL(nvlist_add_nvpair);
3630 EXPORT_SYMBOL(nvlist_add_boolean);
3631 EXPORT_SYMBOL(nvlist_add_boolean_value);
3632 EXPORT_SYMBOL(nvlist_add_byte);
3633 EXPORT_SYMBOL(nvlist_add_int8);
3634 EXPORT_SYMBOL(nvlist_add_uint8);
3635 EXPORT_SYMBOL(nvlist_add_int16);
3636 EXPORT_SYMBOL(nvlist_add_uint16);
3637 EXPORT_SYMBOL(nvlist_add_int32);
3638 EXPORT_SYMBOL(nvlist_add_uint32);
3639 EXPORT_SYMBOL(nvlist_add_int64);
3640 EXPORT_SYMBOL(nvlist_add_uint64);
3641 EXPORT_SYMBOL(nvlist_add_string);
3642 EXPORT_SYMBOL(nvlist_add_nvlist);
3643 EXPORT_SYMBOL(nvlist_add_boolean_array);
3644 EXPORT_SYMBOL(nvlist_add_byte_array);
3645 EXPORT_SYMBOL(nvlist_add_int8_array);
3646 EXPORT_SYMBOL(nvlist_add_uint8_array);
3647 EXPORT_SYMBOL(nvlist_add_int16_array);
3648 EXPORT_SYMBOL(nvlist_add_uint16_array);
3649 EXPORT_SYMBOL(nvlist_add_int32_array);
3650 EXPORT_SYMBOL(nvlist_add_uint32_array);
3651 EXPORT_SYMBOL(nvlist_add_int64_array);
3652 EXPORT_SYMBOL(nvlist_add_uint64_array);
3653 EXPORT_SYMBOL(nvlist_add_string_array);
3654 EXPORT_SYMBOL(nvlist_add_nvlist_array);
3655 EXPORT_SYMBOL(nvlist_next_nvpair);
3656 EXPORT_SYMBOL(nvlist_prev_nvpair);
3657 EXPORT_SYMBOL(nvlist_empty);
3658 EXPORT_SYMBOL(nvlist_add_hrtime);
3660 EXPORT_SYMBOL(nvlist_remove);
3661 EXPORT_SYMBOL(nvlist_remove_nvpair);
3662 EXPORT_SYMBOL(nvlist_remove_all);
3664 EXPORT_SYMBOL(nvlist_lookup_boolean);
3665 EXPORT_SYMBOL(nvlist_lookup_boolean_value);
3666 EXPORT_SYMBOL(nvlist_lookup_byte);
3667 EXPORT_SYMBOL(nvlist_lookup_int8);
3668 EXPORT_SYMBOL(nvlist_lookup_uint8);
3669 EXPORT_SYMBOL(nvlist_lookup_int16);
3670 EXPORT_SYMBOL(nvlist_lookup_uint16);
3671 EXPORT_SYMBOL(nvlist_lookup_int32);
3672 EXPORT_SYMBOL(nvlist_lookup_uint32);
3673 EXPORT_SYMBOL(nvlist_lookup_int64);
3674 EXPORT_SYMBOL(nvlist_lookup_uint64);
3675 EXPORT_SYMBOL(nvlist_lookup_string);
3676 EXPORT_SYMBOL(nvlist_lookup_nvlist);
3677 EXPORT_SYMBOL(nvlist_lookup_boolean_array);
3678 EXPORT_SYMBOL(nvlist_lookup_byte_array);
3679 EXPORT_SYMBOL(nvlist_lookup_int8_array);
3680 EXPORT_SYMBOL(nvlist_lookup_uint8_array);
3681 EXPORT_SYMBOL(nvlist_lookup_int16_array);
3682 EXPORT_SYMBOL(nvlist_lookup_uint16_array);
3683 EXPORT_SYMBOL(nvlist_lookup_int32_array);
3684 EXPORT_SYMBOL(nvlist_lookup_uint32_array);
3685 EXPORT_SYMBOL(nvlist_lookup_int64_array);
3686 EXPORT_SYMBOL(nvlist_lookup_uint64_array);
3687 EXPORT_SYMBOL(nvlist_lookup_string_array);
3688 EXPORT_SYMBOL(nvlist_lookup_nvlist_array);
3689 EXPORT_SYMBOL(nvlist_lookup_hrtime);
3690 EXPORT_SYMBOL(nvlist_lookup_pairs);
3692 EXPORT_SYMBOL(nvlist_lookup_nvpair);
3693 EXPORT_SYMBOL(nvlist_exists);
3695 /* processing nvpair */
3696 EXPORT_SYMBOL(nvpair_name);
3697 EXPORT_SYMBOL(nvpair_type);
3698 EXPORT_SYMBOL(nvpair_value_boolean_value);
3699 EXPORT_SYMBOL(nvpair_value_byte);
3700 EXPORT_SYMBOL(nvpair_value_int8);
3701 EXPORT_SYMBOL(nvpair_value_uint8);
3702 EXPORT_SYMBOL(nvpair_value_int16);
3703 EXPORT_SYMBOL(nvpair_value_uint16);
3704 EXPORT_SYMBOL(nvpair_value_int32);
3705 EXPORT_SYMBOL(nvpair_value_uint32);
3706 EXPORT_SYMBOL(nvpair_value_int64);
3707 EXPORT_SYMBOL(nvpair_value_uint64);
3708 EXPORT_SYMBOL(nvpair_value_string);
3709 EXPORT_SYMBOL(nvpair_value_nvlist);
3710 EXPORT_SYMBOL(nvpair_value_boolean_array);
3711 EXPORT_SYMBOL(nvpair_value_byte_array);
3712 EXPORT_SYMBOL(nvpair_value_int8_array);
3713 EXPORT_SYMBOL(nvpair_value_uint8_array);
3714 EXPORT_SYMBOL(nvpair_value_int16_array);
3715 EXPORT_SYMBOL(nvpair_value_uint16_array);
3716 EXPORT_SYMBOL(nvpair_value_int32_array);
3717 EXPORT_SYMBOL(nvpair_value_uint32_array);
3718 EXPORT_SYMBOL(nvpair_value_int64_array);
3719 EXPORT_SYMBOL(nvpair_value_uint64_array);
3720 EXPORT_SYMBOL(nvpair_value_string_array);
3721 EXPORT_SYMBOL(nvpair_value_nvlist_array);
3722 EXPORT_SYMBOL(nvpair_value_hrtime);