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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
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. | |
7 | * | |
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. | |
12 | * | |
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] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
572e2857 | 23 | * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
87dac73d | 24 | * Copyright (c) 2015, 2016 by Delphix. All rights reserved. |
34dc7c2f BB |
25 | */ |
26 | ||
34dc7c2f BB |
27 | #include <sys/stropts.h> |
28 | #include <sys/debug.h> | |
29 | #include <sys/isa_defs.h> | |
30 | #include <sys/int_limits.h> | |
31 | #include <sys/nvpair.h> | |
32 | #include <sys/nvpair_impl.h> | |
33 | #include <rpc/types.h> | |
34 | #include <rpc/xdr.h> | |
35 | ||
36 | #if defined(_KERNEL) && !defined(_BOOT) | |
37 | #include <sys/varargs.h> | |
b128c09f BB |
38 | #include <sys/ddi.h> |
39 | #include <sys/sunddi.h> | |
34dc7c2f BB |
40 | #else |
41 | #include <stdarg.h> | |
b128c09f BB |
42 | #include <stdlib.h> |
43 | #include <string.h> | |
34dc7c2f BB |
44 | #include <strings.h> |
45 | #endif | |
46 | ||
47 | #ifndef offsetof | |
b128c09f | 48 | #define offsetof(s, m) ((size_t)(&(((s *)0)->m))) |
34dc7c2f | 49 | #endif |
b128c09f | 50 | #define skip_whitespace(p) while ((*(p) == ' ') || (*(p) == '\t')) p++ |
34dc7c2f BB |
51 | |
52 | /* | |
53 | * nvpair.c - Provides kernel & userland interfaces for manipulating | |
54 | * name-value pairs. | |
55 | * | |
56 | * Overview Diagram | |
57 | * | |
58 | * +--------------+ | |
59 | * | nvlist_t | | |
60 | * |--------------| | |
61 | * | nvl_version | | |
62 | * | nvl_nvflag | | |
63 | * | nvl_priv -+-+ | |
64 | * | nvl_flag | | | |
65 | * | nvl_pad | | | |
66 | * +--------------+ | | |
67 | * V | |
68 | * +--------------+ last i_nvp in list | |
69 | * | nvpriv_t | +---------------------> | |
70 | * |--------------| | | |
71 | * +--+- nvp_list | | +------------+ | |
72 | * | | nvp_last -+--+ + nv_alloc_t | | |
73 | * | | nvp_curr | |------------| | |
74 | * | | nvp_nva -+----> | nva_ops | | |
75 | * | | nvp_stat | | nva_arg | | |
76 | * | +--------------+ +------------+ | |
77 | * | | |
78 | * +-------+ | |
79 | * V | |
80 | * +---------------------+ +-------------------+ | |
81 | * | i_nvp_t | +-->| i_nvp_t | +--> | |
82 | * |---------------------| | |-------------------| | | |
83 | * | nvi_next -+--+ | nvi_next -+--+ | |
84 | * | nvi_prev (NULL) | <----+ nvi_prev | | |
85 | * | . . . . . . . . . . | | . . . . . . . . . | | |
86 | * | nvp (nvpair_t) | | nvp (nvpair_t) | | |
87 | * | - nvp_size | | - nvp_size | | |
88 | * | - nvp_name_sz | | - nvp_name_sz | | |
89 | * | - nvp_value_elem | | - nvp_value_elem | | |
90 | * | - nvp_type | | - nvp_type | | |
91 | * | - data ... | | - data ... | | |
92 | * +---------------------+ +-------------------+ | |
93 | * | |
94 | * | |
95 | * | |
96 | * +---------------------+ +---------------------+ | |
97 | * | i_nvp_t | +--> +-->| i_nvp_t (last) | | |
98 | * |---------------------| | | |---------------------| | |
99 | * | nvi_next -+--+ ... --+ | nvi_next (NULL) | | |
100 | * <-+- nvi_prev |<-- ... <----+ nvi_prev | | |
101 | * | . . . . . . . . . | | . . . . . . . . . | | |
102 | * | nvp (nvpair_t) | | nvp (nvpair_t) | | |
103 | * | - nvp_size | | - nvp_size | | |
104 | * | - nvp_name_sz | | - nvp_name_sz | | |
105 | * | - nvp_value_elem | | - nvp_value_elem | | |
106 | * | - DATA_TYPE_NVLIST | | - nvp_type | | |
107 | * | - data (embedded) | | - data ... | | |
108 | * | nvlist name | +---------------------+ | |
109 | * | +--------------+ | | |
110 | * | | nvlist_t | | | |
111 | * | |--------------| | | |
112 | * | | nvl_version | | | |
113 | * | | nvl_nvflag | | | |
114 | * | | nvl_priv --+---+----> | |
115 | * | | nvl_flag | | | |
116 | * | | nvl_pad | | | |
117 | * | +--------------+ | | |
118 | * +---------------------+ | |
119 | * | |
120 | * | |
121 | * N.B. nvpair_t may be aligned on 4 byte boundary, so +4 will | |
122 | * allow value to be aligned on 8 byte boundary | |
123 | * | |
124 | * name_len is the length of the name string including the null terminator | |
125 | * so it must be >= 1 | |
126 | */ | |
127 | #define NVP_SIZE_CALC(name_len, data_len) \ | |
128 | (NV_ALIGN((sizeof (nvpair_t)) + name_len) + NV_ALIGN(data_len)) | |
129 | ||
130 | static int i_get_value_size(data_type_t type, const void *data, uint_t nelem); | |
131 | static int nvlist_add_common(nvlist_t *nvl, const char *name, data_type_t type, | |
132 | uint_t nelem, const void *data); | |
133 | ||
134 | #define NV_STAT_EMBEDDED 0x1 | |
135 | #define EMBEDDED_NVL(nvp) ((nvlist_t *)(void *)NVP_VALUE(nvp)) | |
136 | #define EMBEDDED_NVL_ARRAY(nvp) ((nvlist_t **)(void *)NVP_VALUE(nvp)) | |
137 | ||
138 | #define NVP_VALOFF(nvp) (NV_ALIGN(sizeof (nvpair_t) + (nvp)->nvp_name_sz)) | |
139 | #define NVPAIR2I_NVP(nvp) \ | |
140 | ((i_nvp_t *)((size_t)(nvp) - offsetof(i_nvp_t, nvi_nvp))) | |
141 | ||
87dac73d AX |
142 | #ifdef _KERNEL |
143 | int nvpair_max_recursion = 20; | |
144 | #else | |
145 | int nvpair_max_recursion = 100; | |
146 | #endif | |
34dc7c2f BB |
147 | |
148 | int | |
149 | nv_alloc_init(nv_alloc_t *nva, const nv_alloc_ops_t *nvo, /* args */ ...) | |
150 | { | |
151 | va_list valist; | |
152 | int err = 0; | |
153 | ||
154 | nva->nva_ops = nvo; | |
155 | nva->nva_arg = NULL; | |
156 | ||
157 | va_start(valist, nvo); | |
158 | if (nva->nva_ops->nv_ao_init != NULL) | |
159 | err = nva->nva_ops->nv_ao_init(nva, valist); | |
160 | va_end(valist); | |
161 | ||
162 | return (err); | |
163 | } | |
164 | ||
165 | void | |
166 | nv_alloc_reset(nv_alloc_t *nva) | |
167 | { | |
168 | if (nva->nva_ops->nv_ao_reset != NULL) | |
169 | nva->nva_ops->nv_ao_reset(nva); | |
170 | } | |
171 | ||
172 | void | |
173 | nv_alloc_fini(nv_alloc_t *nva) | |
174 | { | |
175 | if (nva->nva_ops->nv_ao_fini != NULL) | |
176 | nva->nva_ops->nv_ao_fini(nva); | |
177 | } | |
178 | ||
179 | nv_alloc_t * | |
180 | nvlist_lookup_nv_alloc(nvlist_t *nvl) | |
181 | { | |
182 | nvpriv_t *priv; | |
183 | ||
184 | if (nvl == NULL || | |
185 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
186 | return (NULL); | |
187 | ||
188 | return (priv->nvp_nva); | |
189 | } | |
190 | ||
191 | static void * | |
192 | nv_mem_zalloc(nvpriv_t *nvp, size_t size) | |
193 | { | |
194 | nv_alloc_t *nva = nvp->nvp_nva; | |
195 | void *buf; | |
196 | ||
197 | if ((buf = nva->nva_ops->nv_ao_alloc(nva, size)) != NULL) | |
198 | bzero(buf, size); | |
199 | ||
200 | return (buf); | |
201 | } | |
202 | ||
203 | static void | |
204 | nv_mem_free(nvpriv_t *nvp, void *buf, size_t size) | |
205 | { | |
206 | nv_alloc_t *nva = nvp->nvp_nva; | |
207 | ||
208 | nva->nva_ops->nv_ao_free(nva, buf, size); | |
209 | } | |
210 | ||
211 | static void | |
212 | nv_priv_init(nvpriv_t *priv, nv_alloc_t *nva, uint32_t stat) | |
213 | { | |
b128c09f | 214 | bzero(priv, sizeof (nvpriv_t)); |
34dc7c2f BB |
215 | |
216 | priv->nvp_nva = nva; | |
217 | priv->nvp_stat = stat; | |
218 | } | |
219 | ||
220 | static nvpriv_t * | |
221 | nv_priv_alloc(nv_alloc_t *nva) | |
222 | { | |
223 | nvpriv_t *priv; | |
224 | ||
225 | /* | |
226 | * nv_mem_alloc() cannot called here because it needs the priv | |
227 | * argument. | |
228 | */ | |
229 | if ((priv = nva->nva_ops->nv_ao_alloc(nva, sizeof (nvpriv_t))) == NULL) | |
230 | return (NULL); | |
231 | ||
232 | nv_priv_init(priv, nva, 0); | |
233 | ||
234 | return (priv); | |
235 | } | |
236 | ||
237 | /* | |
238 | * Embedded lists need their own nvpriv_t's. We create a new | |
239 | * nvpriv_t using the parameters and allocator from the parent | |
240 | * list's nvpriv_t. | |
241 | */ | |
242 | static nvpriv_t * | |
243 | nv_priv_alloc_embedded(nvpriv_t *priv) | |
244 | { | |
245 | nvpriv_t *emb_priv; | |
246 | ||
247 | if ((emb_priv = nv_mem_zalloc(priv, sizeof (nvpriv_t))) == NULL) | |
248 | return (NULL); | |
249 | ||
250 | nv_priv_init(emb_priv, priv->nvp_nva, NV_STAT_EMBEDDED); | |
251 | ||
252 | return (emb_priv); | |
253 | } | |
254 | ||
255 | static void | |
256 | nvlist_init(nvlist_t *nvl, uint32_t nvflag, nvpriv_t *priv) | |
257 | { | |
258 | nvl->nvl_version = NV_VERSION; | |
259 | nvl->nvl_nvflag = nvflag & (NV_UNIQUE_NAME|NV_UNIQUE_NAME_TYPE); | |
260 | nvl->nvl_priv = (uint64_t)(uintptr_t)priv; | |
261 | nvl->nvl_flag = 0; | |
262 | nvl->nvl_pad = 0; | |
263 | } | |
264 | ||
572e2857 BB |
265 | uint_t |
266 | nvlist_nvflag(nvlist_t *nvl) | |
267 | { | |
268 | return (nvl->nvl_nvflag); | |
269 | } | |
270 | ||
a08ee875 LG |
271 | static nv_alloc_t * |
272 | nvlist_nv_alloc(int kmflag) | |
34dc7c2f BB |
273 | { |
274 | #if defined(_KERNEL) && !defined(_BOOT) | |
c06d4368 AX |
275 | switch (kmflag) { |
276 | case KM_SLEEP: | |
a08ee875 | 277 | return (nv_alloc_sleep); |
c06d4368 | 278 | case KM_PUSHPAGE: |
a08ee875 | 279 | return (nv_alloc_pushpage); |
c06d4368 | 280 | default: |
a08ee875 | 281 | return (nv_alloc_nosleep); |
c06d4368 | 282 | } |
a08ee875 LG |
283 | #else |
284 | return (nv_alloc_nosleep); | |
285 | #endif /* _KERNEL && !_BOOT */ | |
286 | } | |
c06d4368 | 287 | |
a08ee875 LG |
288 | /* |
289 | * nvlist_alloc - Allocate nvlist. | |
290 | */ | |
291 | int | |
292 | nvlist_alloc(nvlist_t **nvlp, uint_t nvflag, int kmflag) | |
293 | { | |
294 | return (nvlist_xalloc(nvlp, nvflag, nvlist_nv_alloc(kmflag))); | |
34dc7c2f BB |
295 | } |
296 | ||
297 | int | |
298 | nvlist_xalloc(nvlist_t **nvlp, uint_t nvflag, nv_alloc_t *nva) | |
299 | { | |
300 | nvpriv_t *priv; | |
301 | ||
302 | if (nvlp == NULL || nva == NULL) | |
303 | return (EINVAL); | |
304 | ||
305 | if ((priv = nv_priv_alloc(nva)) == NULL) | |
306 | return (ENOMEM); | |
307 | ||
308 | if ((*nvlp = nv_mem_zalloc(priv, | |
309 | NV_ALIGN(sizeof (nvlist_t)))) == NULL) { | |
310 | nv_mem_free(priv, priv, sizeof (nvpriv_t)); | |
311 | return (ENOMEM); | |
312 | } | |
313 | ||
314 | nvlist_init(*nvlp, nvflag, priv); | |
315 | ||
316 | return (0); | |
317 | } | |
318 | ||
319 | /* | |
320 | * nvp_buf_alloc - Allocate i_nvp_t for storing a new nv pair. | |
321 | */ | |
322 | static nvpair_t * | |
323 | nvp_buf_alloc(nvlist_t *nvl, size_t len) | |
324 | { | |
325 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
326 | i_nvp_t *buf; | |
327 | nvpair_t *nvp; | |
328 | size_t nvsize; | |
329 | ||
330 | /* | |
331 | * Allocate the buffer | |
332 | */ | |
333 | nvsize = len + offsetof(i_nvp_t, nvi_nvp); | |
334 | ||
335 | if ((buf = nv_mem_zalloc(priv, nvsize)) == NULL) | |
336 | return (NULL); | |
337 | ||
338 | nvp = &buf->nvi_nvp; | |
339 | nvp->nvp_size = len; | |
340 | ||
341 | return (nvp); | |
342 | } | |
343 | ||
344 | /* | |
345 | * nvp_buf_free - de-Allocate an i_nvp_t. | |
346 | */ | |
347 | static void | |
348 | nvp_buf_free(nvlist_t *nvl, nvpair_t *nvp) | |
349 | { | |
350 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
351 | size_t nvsize = nvp->nvp_size + offsetof(i_nvp_t, nvi_nvp); | |
352 | ||
353 | nv_mem_free(priv, NVPAIR2I_NVP(nvp), nvsize); | |
354 | } | |
355 | ||
356 | /* | |
357 | * nvp_buf_link - link a new nv pair into the nvlist. | |
358 | */ | |
359 | static void | |
360 | nvp_buf_link(nvlist_t *nvl, nvpair_t *nvp) | |
361 | { | |
362 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
363 | i_nvp_t *curr = NVPAIR2I_NVP(nvp); | |
364 | ||
365 | /* Put element at end of nvlist */ | |
366 | if (priv->nvp_list == NULL) { | |
367 | priv->nvp_list = priv->nvp_last = curr; | |
368 | } else { | |
369 | curr->nvi_prev = priv->nvp_last; | |
370 | priv->nvp_last->nvi_next = curr; | |
371 | priv->nvp_last = curr; | |
372 | } | |
373 | } | |
374 | ||
375 | /* | |
376 | * nvp_buf_unlink - unlink an removed nvpair out of the nvlist. | |
377 | */ | |
378 | static void | |
379 | nvp_buf_unlink(nvlist_t *nvl, nvpair_t *nvp) | |
380 | { | |
381 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
382 | i_nvp_t *curr = NVPAIR2I_NVP(nvp); | |
383 | ||
384 | /* | |
385 | * protect nvlist_next_nvpair() against walking on freed memory. | |
386 | */ | |
387 | if (priv->nvp_curr == curr) | |
388 | priv->nvp_curr = curr->nvi_next; | |
389 | ||
390 | if (curr == priv->nvp_list) | |
391 | priv->nvp_list = curr->nvi_next; | |
392 | else | |
393 | curr->nvi_prev->nvi_next = curr->nvi_next; | |
394 | ||
395 | if (curr == priv->nvp_last) | |
396 | priv->nvp_last = curr->nvi_prev; | |
397 | else | |
398 | curr->nvi_next->nvi_prev = curr->nvi_prev; | |
399 | } | |
400 | ||
401 | /* | |
402 | * take a nvpair type and number of elements and make sure the are valid | |
403 | */ | |
404 | static int | |
405 | i_validate_type_nelem(data_type_t type, uint_t nelem) | |
406 | { | |
407 | switch (type) { | |
408 | case DATA_TYPE_BOOLEAN: | |
409 | if (nelem != 0) | |
410 | return (EINVAL); | |
411 | break; | |
412 | case DATA_TYPE_BOOLEAN_VALUE: | |
413 | case DATA_TYPE_BYTE: | |
414 | case DATA_TYPE_INT8: | |
415 | case DATA_TYPE_UINT8: | |
416 | case DATA_TYPE_INT16: | |
417 | case DATA_TYPE_UINT16: | |
418 | case DATA_TYPE_INT32: | |
419 | case DATA_TYPE_UINT32: | |
420 | case DATA_TYPE_INT64: | |
421 | case DATA_TYPE_UINT64: | |
422 | case DATA_TYPE_STRING: | |
423 | case DATA_TYPE_HRTIME: | |
424 | case DATA_TYPE_NVLIST: | |
b128c09f BB |
425 | #if !defined(_KERNEL) |
426 | case DATA_TYPE_DOUBLE: | |
427 | #endif | |
34dc7c2f BB |
428 | if (nelem != 1) |
429 | return (EINVAL); | |
430 | break; | |
431 | case DATA_TYPE_BOOLEAN_ARRAY: | |
432 | case DATA_TYPE_BYTE_ARRAY: | |
433 | case DATA_TYPE_INT8_ARRAY: | |
434 | case DATA_TYPE_UINT8_ARRAY: | |
435 | case DATA_TYPE_INT16_ARRAY: | |
436 | case DATA_TYPE_UINT16_ARRAY: | |
437 | case DATA_TYPE_INT32_ARRAY: | |
438 | case DATA_TYPE_UINT32_ARRAY: | |
439 | case DATA_TYPE_INT64_ARRAY: | |
440 | case DATA_TYPE_UINT64_ARRAY: | |
441 | case DATA_TYPE_STRING_ARRAY: | |
442 | case DATA_TYPE_NVLIST_ARRAY: | |
443 | /* we allow arrays with 0 elements */ | |
444 | break; | |
445 | default: | |
446 | return (EINVAL); | |
447 | } | |
448 | return (0); | |
449 | } | |
450 | ||
451 | /* | |
452 | * Verify nvp_name_sz and check the name string length. | |
453 | */ | |
454 | static int | |
455 | i_validate_nvpair_name(nvpair_t *nvp) | |
456 | { | |
457 | if ((nvp->nvp_name_sz <= 0) || | |
458 | (nvp->nvp_size < NVP_SIZE_CALC(nvp->nvp_name_sz, 0))) | |
459 | return (EFAULT); | |
460 | ||
461 | /* verify the name string, make sure its terminated */ | |
462 | if (NVP_NAME(nvp)[nvp->nvp_name_sz - 1] != '\0') | |
463 | return (EFAULT); | |
464 | ||
465 | return (strlen(NVP_NAME(nvp)) == nvp->nvp_name_sz - 1 ? 0 : EFAULT); | |
466 | } | |
467 | ||
468 | static int | |
469 | i_validate_nvpair_value(data_type_t type, uint_t nelem, const void *data) | |
470 | { | |
471 | switch (type) { | |
472 | case DATA_TYPE_BOOLEAN_VALUE: | |
473 | if (*(boolean_t *)data != B_TRUE && | |
474 | *(boolean_t *)data != B_FALSE) | |
475 | return (EINVAL); | |
476 | break; | |
477 | case DATA_TYPE_BOOLEAN_ARRAY: { | |
478 | int i; | |
479 | ||
480 | for (i = 0; i < nelem; i++) | |
481 | if (((boolean_t *)data)[i] != B_TRUE && | |
482 | ((boolean_t *)data)[i] != B_FALSE) | |
483 | return (EINVAL); | |
484 | break; | |
485 | } | |
486 | default: | |
487 | break; | |
488 | } | |
489 | ||
490 | return (0); | |
491 | } | |
492 | ||
493 | /* | |
494 | * This function takes a pointer to what should be a nvpair and it's size | |
495 | * and then verifies that all the nvpair fields make sense and can be | |
496 | * trusted. This function is used when decoding packed nvpairs. | |
497 | */ | |
498 | static int | |
499 | i_validate_nvpair(nvpair_t *nvp) | |
500 | { | |
501 | data_type_t type = NVP_TYPE(nvp); | |
502 | int size1, size2; | |
503 | ||
504 | /* verify nvp_name_sz, check the name string length */ | |
505 | if (i_validate_nvpair_name(nvp) != 0) | |
506 | return (EFAULT); | |
507 | ||
508 | if (i_validate_nvpair_value(type, NVP_NELEM(nvp), NVP_VALUE(nvp)) != 0) | |
509 | return (EFAULT); | |
510 | ||
511 | /* | |
512 | * verify nvp_type, nvp_value_elem, and also possibly | |
513 | * verify string values and get the value size. | |
514 | */ | |
515 | size2 = i_get_value_size(type, NVP_VALUE(nvp), NVP_NELEM(nvp)); | |
516 | size1 = nvp->nvp_size - NVP_VALOFF(nvp); | |
517 | if (size2 < 0 || size1 != NV_ALIGN(size2)) | |
518 | return (EFAULT); | |
519 | ||
520 | return (0); | |
521 | } | |
522 | ||
523 | static int | |
524 | nvlist_copy_pairs(nvlist_t *snvl, nvlist_t *dnvl) | |
525 | { | |
526 | nvpriv_t *priv; | |
527 | i_nvp_t *curr; | |
528 | ||
529 | if ((priv = (nvpriv_t *)(uintptr_t)snvl->nvl_priv) == NULL) | |
530 | return (EINVAL); | |
531 | ||
532 | for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) { | |
533 | nvpair_t *nvp = &curr->nvi_nvp; | |
534 | int err; | |
535 | ||
536 | if ((err = nvlist_add_common(dnvl, NVP_NAME(nvp), NVP_TYPE(nvp), | |
537 | NVP_NELEM(nvp), NVP_VALUE(nvp))) != 0) | |
538 | return (err); | |
539 | } | |
540 | ||
541 | return (0); | |
542 | } | |
543 | ||
544 | /* | |
545 | * Frees all memory allocated for an nvpair (like embedded lists) with | |
546 | * the exception of the nvpair buffer itself. | |
547 | */ | |
548 | static void | |
549 | nvpair_free(nvpair_t *nvp) | |
550 | { | |
551 | switch (NVP_TYPE(nvp)) { | |
552 | case DATA_TYPE_NVLIST: | |
553 | nvlist_free(EMBEDDED_NVL(nvp)); | |
554 | break; | |
555 | case DATA_TYPE_NVLIST_ARRAY: { | |
556 | nvlist_t **nvlp = EMBEDDED_NVL_ARRAY(nvp); | |
557 | int i; | |
558 | ||
559 | for (i = 0; i < NVP_NELEM(nvp); i++) | |
560 | if (nvlp[i] != NULL) | |
561 | nvlist_free(nvlp[i]); | |
562 | break; | |
563 | } | |
564 | default: | |
565 | break; | |
566 | } | |
567 | } | |
568 | ||
569 | /* | |
570 | * nvlist_free - free an unpacked nvlist | |
571 | */ | |
572 | void | |
573 | nvlist_free(nvlist_t *nvl) | |
574 | { | |
575 | nvpriv_t *priv; | |
576 | i_nvp_t *curr; | |
577 | ||
578 | if (nvl == NULL || | |
579 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
580 | return; | |
581 | ||
582 | /* | |
583 | * Unpacked nvlist are linked through i_nvp_t | |
584 | */ | |
585 | curr = priv->nvp_list; | |
586 | while (curr != NULL) { | |
587 | nvpair_t *nvp = &curr->nvi_nvp; | |
588 | curr = curr->nvi_next; | |
589 | ||
590 | nvpair_free(nvp); | |
591 | nvp_buf_free(nvl, nvp); | |
592 | } | |
593 | ||
594 | if (!(priv->nvp_stat & NV_STAT_EMBEDDED)) | |
595 | nv_mem_free(priv, nvl, NV_ALIGN(sizeof (nvlist_t))); | |
596 | else | |
597 | nvl->nvl_priv = 0; | |
598 | ||
599 | nv_mem_free(priv, priv, sizeof (nvpriv_t)); | |
600 | } | |
601 | ||
602 | static int | |
603 | nvlist_contains_nvp(nvlist_t *nvl, nvpair_t *nvp) | |
604 | { | |
605 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
606 | i_nvp_t *curr; | |
607 | ||
608 | if (nvp == NULL) | |
609 | return (0); | |
610 | ||
611 | for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) | |
612 | if (&curr->nvi_nvp == nvp) | |
613 | return (1); | |
614 | ||
615 | return (0); | |
616 | } | |
617 | ||
618 | /* | |
619 | * Make a copy of nvlist | |
620 | */ | |
34dc7c2f BB |
621 | int |
622 | nvlist_dup(nvlist_t *nvl, nvlist_t **nvlp, int kmflag) | |
623 | { | |
a08ee875 | 624 | return (nvlist_xdup(nvl, nvlp, nvlist_nv_alloc(kmflag))); |
34dc7c2f BB |
625 | } |
626 | ||
627 | int | |
628 | nvlist_xdup(nvlist_t *nvl, nvlist_t **nvlp, nv_alloc_t *nva) | |
629 | { | |
630 | int err; | |
631 | nvlist_t *ret; | |
632 | ||
633 | if (nvl == NULL || nvlp == NULL) | |
634 | return (EINVAL); | |
635 | ||
636 | if ((err = nvlist_xalloc(&ret, nvl->nvl_nvflag, nva)) != 0) | |
637 | return (err); | |
638 | ||
639 | if ((err = nvlist_copy_pairs(nvl, ret)) != 0) | |
640 | nvlist_free(ret); | |
641 | else | |
642 | *nvlp = ret; | |
643 | ||
644 | return (err); | |
645 | } | |
646 | ||
647 | /* | |
648 | * Remove all with matching name | |
649 | */ | |
650 | int | |
651 | nvlist_remove_all(nvlist_t *nvl, const char *name) | |
652 | { | |
653 | nvpriv_t *priv; | |
654 | i_nvp_t *curr; | |
655 | int error = ENOENT; | |
656 | ||
657 | if (nvl == NULL || name == NULL || | |
658 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
659 | return (EINVAL); | |
660 | ||
661 | curr = priv->nvp_list; | |
662 | while (curr != NULL) { | |
663 | nvpair_t *nvp = &curr->nvi_nvp; | |
664 | ||
665 | curr = curr->nvi_next; | |
666 | if (strcmp(name, NVP_NAME(nvp)) != 0) | |
667 | continue; | |
668 | ||
669 | nvp_buf_unlink(nvl, nvp); | |
670 | nvpair_free(nvp); | |
671 | nvp_buf_free(nvl, nvp); | |
672 | ||
673 | error = 0; | |
674 | } | |
675 | ||
676 | return (error); | |
677 | } | |
678 | ||
679 | /* | |
680 | * Remove first one with matching name and type | |
681 | */ | |
682 | int | |
683 | nvlist_remove(nvlist_t *nvl, const char *name, data_type_t type) | |
684 | { | |
685 | nvpriv_t *priv; | |
686 | i_nvp_t *curr; | |
687 | ||
688 | if (nvl == NULL || name == NULL || | |
689 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
690 | return (EINVAL); | |
691 | ||
692 | curr = priv->nvp_list; | |
693 | while (curr != NULL) { | |
694 | nvpair_t *nvp = &curr->nvi_nvp; | |
695 | ||
696 | if (strcmp(name, NVP_NAME(nvp)) == 0 && NVP_TYPE(nvp) == type) { | |
697 | nvp_buf_unlink(nvl, nvp); | |
698 | nvpair_free(nvp); | |
699 | nvp_buf_free(nvl, nvp); | |
700 | ||
701 | return (0); | |
702 | } | |
703 | curr = curr->nvi_next; | |
704 | } | |
705 | ||
706 | return (ENOENT); | |
707 | } | |
708 | ||
428870ff BB |
709 | int |
710 | nvlist_remove_nvpair(nvlist_t *nvl, nvpair_t *nvp) | |
711 | { | |
712 | if (nvl == NULL || nvp == NULL) | |
713 | return (EINVAL); | |
714 | ||
715 | nvp_buf_unlink(nvl, nvp); | |
716 | nvpair_free(nvp); | |
717 | nvp_buf_free(nvl, nvp); | |
718 | return (0); | |
719 | } | |
720 | ||
34dc7c2f BB |
721 | /* |
722 | * This function calculates the size of an nvpair value. | |
723 | * | |
724 | * The data argument controls the behavior in case of the data types | |
725 | * DATA_TYPE_STRING and | |
726 | * DATA_TYPE_STRING_ARRAY | |
727 | * Is data == NULL then the size of the string(s) is excluded. | |
728 | */ | |
729 | static int | |
730 | i_get_value_size(data_type_t type, const void *data, uint_t nelem) | |
731 | { | |
732 | uint64_t value_sz; | |
733 | ||
734 | if (i_validate_type_nelem(type, nelem) != 0) | |
735 | return (-1); | |
736 | ||
737 | /* Calculate required size for holding value */ | |
738 | switch (type) { | |
739 | case DATA_TYPE_BOOLEAN: | |
740 | value_sz = 0; | |
741 | break; | |
742 | case DATA_TYPE_BOOLEAN_VALUE: | |
743 | value_sz = sizeof (boolean_t); | |
744 | break; | |
745 | case DATA_TYPE_BYTE: | |
746 | value_sz = sizeof (uchar_t); | |
747 | break; | |
748 | case DATA_TYPE_INT8: | |
749 | value_sz = sizeof (int8_t); | |
750 | break; | |
751 | case DATA_TYPE_UINT8: | |
752 | value_sz = sizeof (uint8_t); | |
753 | break; | |
754 | case DATA_TYPE_INT16: | |
755 | value_sz = sizeof (int16_t); | |
756 | break; | |
757 | case DATA_TYPE_UINT16: | |
758 | value_sz = sizeof (uint16_t); | |
759 | break; | |
760 | case DATA_TYPE_INT32: | |
761 | value_sz = sizeof (int32_t); | |
762 | break; | |
763 | case DATA_TYPE_UINT32: | |
764 | value_sz = sizeof (uint32_t); | |
765 | break; | |
766 | case DATA_TYPE_INT64: | |
767 | value_sz = sizeof (int64_t); | |
768 | break; | |
769 | case DATA_TYPE_UINT64: | |
770 | value_sz = sizeof (uint64_t); | |
771 | break; | |
b128c09f BB |
772 | #if !defined(_KERNEL) |
773 | case DATA_TYPE_DOUBLE: | |
774 | value_sz = sizeof (double); | |
775 | break; | |
776 | #endif | |
34dc7c2f BB |
777 | case DATA_TYPE_STRING: |
778 | if (data == NULL) | |
779 | value_sz = 0; | |
780 | else | |
781 | value_sz = strlen(data) + 1; | |
782 | break; | |
783 | case DATA_TYPE_BOOLEAN_ARRAY: | |
784 | value_sz = (uint64_t)nelem * sizeof (boolean_t); | |
785 | break; | |
786 | case DATA_TYPE_BYTE_ARRAY: | |
787 | value_sz = (uint64_t)nelem * sizeof (uchar_t); | |
788 | break; | |
789 | case DATA_TYPE_INT8_ARRAY: | |
790 | value_sz = (uint64_t)nelem * sizeof (int8_t); | |
791 | break; | |
792 | case DATA_TYPE_UINT8_ARRAY: | |
793 | value_sz = (uint64_t)nelem * sizeof (uint8_t); | |
794 | break; | |
795 | case DATA_TYPE_INT16_ARRAY: | |
796 | value_sz = (uint64_t)nelem * sizeof (int16_t); | |
797 | break; | |
798 | case DATA_TYPE_UINT16_ARRAY: | |
799 | value_sz = (uint64_t)nelem * sizeof (uint16_t); | |
800 | break; | |
801 | case DATA_TYPE_INT32_ARRAY: | |
802 | value_sz = (uint64_t)nelem * sizeof (int32_t); | |
803 | break; | |
804 | case DATA_TYPE_UINT32_ARRAY: | |
805 | value_sz = (uint64_t)nelem * sizeof (uint32_t); | |
806 | break; | |
807 | case DATA_TYPE_INT64_ARRAY: | |
808 | value_sz = (uint64_t)nelem * sizeof (int64_t); | |
809 | break; | |
810 | case DATA_TYPE_UINT64_ARRAY: | |
811 | value_sz = (uint64_t)nelem * sizeof (uint64_t); | |
812 | break; | |
813 | case DATA_TYPE_STRING_ARRAY: | |
814 | value_sz = (uint64_t)nelem * sizeof (uint64_t); | |
815 | ||
816 | if (data != NULL) { | |
817 | char *const *strs = data; | |
818 | uint_t i; | |
819 | ||
820 | /* no alignment requirement for strings */ | |
821 | for (i = 0; i < nelem; i++) { | |
822 | if (strs[i] == NULL) | |
823 | return (-1); | |
824 | value_sz += strlen(strs[i]) + 1; | |
825 | } | |
826 | } | |
827 | break; | |
828 | case DATA_TYPE_HRTIME: | |
829 | value_sz = sizeof (hrtime_t); | |
830 | break; | |
831 | case DATA_TYPE_NVLIST: | |
832 | value_sz = NV_ALIGN(sizeof (nvlist_t)); | |
833 | break; | |
834 | case DATA_TYPE_NVLIST_ARRAY: | |
835 | value_sz = (uint64_t)nelem * sizeof (uint64_t) + | |
836 | (uint64_t)nelem * NV_ALIGN(sizeof (nvlist_t)); | |
837 | break; | |
838 | default: | |
839 | return (-1); | |
840 | } | |
841 | ||
842 | return (value_sz > INT32_MAX ? -1 : (int)value_sz); | |
843 | } | |
844 | ||
845 | static int | |
846 | nvlist_copy_embedded(nvlist_t *nvl, nvlist_t *onvl, nvlist_t *emb_nvl) | |
847 | { | |
848 | nvpriv_t *priv; | |
849 | int err; | |
850 | ||
851 | if ((priv = nv_priv_alloc_embedded((nvpriv_t *)(uintptr_t) | |
852 | nvl->nvl_priv)) == NULL) | |
853 | return (ENOMEM); | |
854 | ||
855 | nvlist_init(emb_nvl, onvl->nvl_nvflag, priv); | |
856 | ||
857 | if ((err = nvlist_copy_pairs(onvl, emb_nvl)) != 0) { | |
858 | nvlist_free(emb_nvl); | |
859 | emb_nvl->nvl_priv = 0; | |
860 | } | |
861 | ||
862 | return (err); | |
863 | } | |
864 | ||
865 | /* | |
866 | * nvlist_add_common - Add new <name,value> pair to nvlist | |
867 | */ | |
868 | static int | |
869 | nvlist_add_common(nvlist_t *nvl, const char *name, | |
870 | data_type_t type, uint_t nelem, const void *data) | |
871 | { | |
872 | nvpair_t *nvp; | |
873 | uint_t i; | |
874 | ||
875 | int nvp_sz, name_sz, value_sz; | |
876 | int err = 0; | |
877 | ||
878 | if (name == NULL || nvl == NULL || nvl->nvl_priv == 0) | |
879 | return (EINVAL); | |
880 | ||
881 | if (nelem != 0 && data == NULL) | |
882 | return (EINVAL); | |
883 | ||
884 | /* | |
885 | * Verify type and nelem and get the value size. | |
886 | * In case of data types DATA_TYPE_STRING and DATA_TYPE_STRING_ARRAY | |
887 | * is the size of the string(s) included. | |
888 | */ | |
889 | if ((value_sz = i_get_value_size(type, data, nelem)) < 0) | |
890 | return (EINVAL); | |
891 | ||
892 | if (i_validate_nvpair_value(type, nelem, data) != 0) | |
893 | return (EINVAL); | |
894 | ||
895 | /* | |
896 | * If we're adding an nvlist or nvlist array, ensure that we are not | |
897 | * adding the input nvlist to itself, which would cause recursion, | |
898 | * and ensure that no NULL nvlist pointers are present. | |
899 | */ | |
900 | switch (type) { | |
901 | case DATA_TYPE_NVLIST: | |
902 | if (data == nvl || data == NULL) | |
903 | return (EINVAL); | |
904 | break; | |
905 | case DATA_TYPE_NVLIST_ARRAY: { | |
906 | nvlist_t **onvlp = (nvlist_t **)data; | |
907 | for (i = 0; i < nelem; i++) { | |
908 | if (onvlp[i] == nvl || onvlp[i] == NULL) | |
909 | return (EINVAL); | |
910 | } | |
911 | break; | |
912 | } | |
913 | default: | |
914 | break; | |
915 | } | |
916 | ||
917 | /* calculate sizes of the nvpair elements and the nvpair itself */ | |
918 | name_sz = strlen(name) + 1; | |
919 | ||
920 | nvp_sz = NVP_SIZE_CALC(name_sz, value_sz); | |
921 | ||
922 | if ((nvp = nvp_buf_alloc(nvl, nvp_sz)) == NULL) | |
923 | return (ENOMEM); | |
924 | ||
925 | ASSERT(nvp->nvp_size == nvp_sz); | |
926 | nvp->nvp_name_sz = name_sz; | |
927 | nvp->nvp_value_elem = nelem; | |
928 | nvp->nvp_type = type; | |
929 | bcopy(name, NVP_NAME(nvp), name_sz); | |
930 | ||
931 | switch (type) { | |
932 | case DATA_TYPE_BOOLEAN: | |
933 | break; | |
934 | case DATA_TYPE_STRING_ARRAY: { | |
935 | char *const *strs = data; | |
936 | char *buf = NVP_VALUE(nvp); | |
937 | char **cstrs = (void *)buf; | |
938 | ||
939 | /* skip pre-allocated space for pointer array */ | |
940 | buf += nelem * sizeof (uint64_t); | |
941 | for (i = 0; i < nelem; i++) { | |
942 | int slen = strlen(strs[i]) + 1; | |
943 | bcopy(strs[i], buf, slen); | |
944 | cstrs[i] = buf; | |
945 | buf += slen; | |
946 | } | |
947 | break; | |
948 | } | |
949 | case DATA_TYPE_NVLIST: { | |
950 | nvlist_t *nnvl = EMBEDDED_NVL(nvp); | |
951 | nvlist_t *onvl = (nvlist_t *)data; | |
952 | ||
953 | if ((err = nvlist_copy_embedded(nvl, onvl, nnvl)) != 0) { | |
954 | nvp_buf_free(nvl, nvp); | |
955 | return (err); | |
956 | } | |
957 | break; | |
958 | } | |
959 | case DATA_TYPE_NVLIST_ARRAY: { | |
960 | nvlist_t **onvlp = (nvlist_t **)data; | |
961 | nvlist_t **nvlp = EMBEDDED_NVL_ARRAY(nvp); | |
962 | nvlist_t *embedded = (nvlist_t *) | |
963 | ((uintptr_t)nvlp + nelem * sizeof (uint64_t)); | |
964 | ||
965 | for (i = 0; i < nelem; i++) { | |
966 | if ((err = nvlist_copy_embedded(nvl, | |
967 | onvlp[i], embedded)) != 0) { | |
968 | /* | |
969 | * Free any successfully created lists | |
970 | */ | |
971 | nvpair_free(nvp); | |
972 | nvp_buf_free(nvl, nvp); | |
973 | return (err); | |
974 | } | |
975 | ||
976 | nvlp[i] = embedded++; | |
977 | } | |
978 | break; | |
979 | } | |
980 | default: | |
981 | bcopy(data, NVP_VALUE(nvp), value_sz); | |
982 | } | |
983 | ||
984 | /* if unique name, remove before add */ | |
985 | if (nvl->nvl_nvflag & NV_UNIQUE_NAME) | |
986 | (void) nvlist_remove_all(nvl, name); | |
987 | else if (nvl->nvl_nvflag & NV_UNIQUE_NAME_TYPE) | |
988 | (void) nvlist_remove(nvl, name, type); | |
989 | ||
990 | nvp_buf_link(nvl, nvp); | |
991 | ||
992 | return (0); | |
993 | } | |
994 | ||
995 | int | |
996 | nvlist_add_boolean(nvlist_t *nvl, const char *name) | |
997 | { | |
998 | return (nvlist_add_common(nvl, name, DATA_TYPE_BOOLEAN, 0, NULL)); | |
999 | } | |
1000 | ||
1001 | int | |
1002 | nvlist_add_boolean_value(nvlist_t *nvl, const char *name, boolean_t val) | |
1003 | { | |
1004 | return (nvlist_add_common(nvl, name, DATA_TYPE_BOOLEAN_VALUE, 1, &val)); | |
1005 | } | |
1006 | ||
1007 | int | |
1008 | nvlist_add_byte(nvlist_t *nvl, const char *name, uchar_t val) | |
1009 | { | |
1010 | return (nvlist_add_common(nvl, name, DATA_TYPE_BYTE, 1, &val)); | |
1011 | } | |
1012 | ||
1013 | int | |
1014 | nvlist_add_int8(nvlist_t *nvl, const char *name, int8_t val) | |
1015 | { | |
1016 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT8, 1, &val)); | |
1017 | } | |
1018 | ||
1019 | int | |
1020 | nvlist_add_uint8(nvlist_t *nvl, const char *name, uint8_t val) | |
1021 | { | |
1022 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT8, 1, &val)); | |
1023 | } | |
1024 | ||
1025 | int | |
1026 | nvlist_add_int16(nvlist_t *nvl, const char *name, int16_t val) | |
1027 | { | |
1028 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT16, 1, &val)); | |
1029 | } | |
1030 | ||
1031 | int | |
1032 | nvlist_add_uint16(nvlist_t *nvl, const char *name, uint16_t val) | |
1033 | { | |
1034 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT16, 1, &val)); | |
1035 | } | |
1036 | ||
1037 | int | |
1038 | nvlist_add_int32(nvlist_t *nvl, const char *name, int32_t val) | |
1039 | { | |
1040 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT32, 1, &val)); | |
1041 | } | |
1042 | ||
1043 | int | |
1044 | nvlist_add_uint32(nvlist_t *nvl, const char *name, uint32_t val) | |
1045 | { | |
1046 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT32, 1, &val)); | |
1047 | } | |
1048 | ||
1049 | int | |
1050 | nvlist_add_int64(nvlist_t *nvl, const char *name, int64_t val) | |
1051 | { | |
1052 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT64, 1, &val)); | |
1053 | } | |
1054 | ||
1055 | int | |
1056 | nvlist_add_uint64(nvlist_t *nvl, const char *name, uint64_t val) | |
1057 | { | |
1058 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT64, 1, &val)); | |
1059 | } | |
1060 | ||
b128c09f BB |
1061 | #if !defined(_KERNEL) |
1062 | int | |
1063 | nvlist_add_double(nvlist_t *nvl, const char *name, double val) | |
1064 | { | |
1065 | return (nvlist_add_common(nvl, name, DATA_TYPE_DOUBLE, 1, &val)); | |
1066 | } | |
1067 | #endif | |
1068 | ||
34dc7c2f BB |
1069 | int |
1070 | nvlist_add_string(nvlist_t *nvl, const char *name, const char *val) | |
1071 | { | |
1072 | return (nvlist_add_common(nvl, name, DATA_TYPE_STRING, 1, (void *)val)); | |
1073 | } | |
1074 | ||
1075 | int | |
1076 | nvlist_add_boolean_array(nvlist_t *nvl, const char *name, | |
1077 | boolean_t *a, uint_t n) | |
1078 | { | |
1079 | return (nvlist_add_common(nvl, name, DATA_TYPE_BOOLEAN_ARRAY, n, a)); | |
1080 | } | |
1081 | ||
1082 | int | |
1083 | nvlist_add_byte_array(nvlist_t *nvl, const char *name, uchar_t *a, uint_t n) | |
1084 | { | |
1085 | return (nvlist_add_common(nvl, name, DATA_TYPE_BYTE_ARRAY, n, a)); | |
1086 | } | |
1087 | ||
1088 | int | |
1089 | nvlist_add_int8_array(nvlist_t *nvl, const char *name, int8_t *a, uint_t n) | |
1090 | { | |
1091 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT8_ARRAY, n, a)); | |
1092 | } | |
1093 | ||
1094 | int | |
1095 | nvlist_add_uint8_array(nvlist_t *nvl, const char *name, uint8_t *a, uint_t n) | |
1096 | { | |
1097 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT8_ARRAY, n, a)); | |
1098 | } | |
1099 | ||
1100 | int | |
1101 | nvlist_add_int16_array(nvlist_t *nvl, const char *name, int16_t *a, uint_t n) | |
1102 | { | |
1103 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT16_ARRAY, n, a)); | |
1104 | } | |
1105 | ||
1106 | int | |
1107 | nvlist_add_uint16_array(nvlist_t *nvl, const char *name, uint16_t *a, uint_t n) | |
1108 | { | |
1109 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT16_ARRAY, n, a)); | |
1110 | } | |
1111 | ||
1112 | int | |
1113 | nvlist_add_int32_array(nvlist_t *nvl, const char *name, int32_t *a, uint_t n) | |
1114 | { | |
1115 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT32_ARRAY, n, a)); | |
1116 | } | |
1117 | ||
1118 | int | |
1119 | nvlist_add_uint32_array(nvlist_t *nvl, const char *name, uint32_t *a, uint_t n) | |
1120 | { | |
1121 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT32_ARRAY, n, a)); | |
1122 | } | |
1123 | ||
1124 | int | |
1125 | nvlist_add_int64_array(nvlist_t *nvl, const char *name, int64_t *a, uint_t n) | |
1126 | { | |
1127 | return (nvlist_add_common(nvl, name, DATA_TYPE_INT64_ARRAY, n, a)); | |
1128 | } | |
1129 | ||
1130 | int | |
1131 | nvlist_add_uint64_array(nvlist_t *nvl, const char *name, uint64_t *a, uint_t n) | |
1132 | { | |
1133 | return (nvlist_add_common(nvl, name, DATA_TYPE_UINT64_ARRAY, n, a)); | |
1134 | } | |
1135 | ||
1136 | int | |
1137 | nvlist_add_string_array(nvlist_t *nvl, const char *name, | |
1138 | char *const *a, uint_t n) | |
1139 | { | |
1140 | return (nvlist_add_common(nvl, name, DATA_TYPE_STRING_ARRAY, n, a)); | |
1141 | } | |
1142 | ||
1143 | int | |
1144 | nvlist_add_hrtime(nvlist_t *nvl, const char *name, hrtime_t val) | |
1145 | { | |
1146 | return (nvlist_add_common(nvl, name, DATA_TYPE_HRTIME, 1, &val)); | |
1147 | } | |
1148 | ||
1149 | int | |
1150 | nvlist_add_nvlist(nvlist_t *nvl, const char *name, nvlist_t *val) | |
1151 | { | |
1152 | return (nvlist_add_common(nvl, name, DATA_TYPE_NVLIST, 1, val)); | |
1153 | } | |
1154 | ||
1155 | int | |
1156 | nvlist_add_nvlist_array(nvlist_t *nvl, const char *name, nvlist_t **a, uint_t n) | |
1157 | { | |
1158 | return (nvlist_add_common(nvl, name, DATA_TYPE_NVLIST_ARRAY, n, a)); | |
1159 | } | |
1160 | ||
1161 | /* reading name-value pairs */ | |
1162 | nvpair_t * | |
1163 | nvlist_next_nvpair(nvlist_t *nvl, nvpair_t *nvp) | |
1164 | { | |
1165 | nvpriv_t *priv; | |
1166 | i_nvp_t *curr; | |
1167 | ||
1168 | if (nvl == NULL || | |
1169 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
1170 | return (NULL); | |
1171 | ||
1172 | curr = NVPAIR2I_NVP(nvp); | |
1173 | ||
1174 | /* | |
1175 | * Ensure that nvp is a valid nvpair on this nvlist. | |
1176 | * NB: nvp_curr is used only as a hint so that we don't always | |
1177 | * have to walk the list to determine if nvp is still on the list. | |
1178 | */ | |
1179 | if (nvp == NULL) | |
1180 | curr = priv->nvp_list; | |
1181 | else if (priv->nvp_curr == curr || nvlist_contains_nvp(nvl, nvp)) | |
1182 | curr = curr->nvi_next; | |
1183 | else | |
1184 | curr = NULL; | |
1185 | ||
1186 | priv->nvp_curr = curr; | |
1187 | ||
1188 | return (curr != NULL ? &curr->nvi_nvp : NULL); | |
1189 | } | |
1190 | ||
428870ff BB |
1191 | nvpair_t * |
1192 | nvlist_prev_nvpair(nvlist_t *nvl, nvpair_t *nvp) | |
1193 | { | |
1194 | nvpriv_t *priv; | |
1195 | i_nvp_t *curr; | |
1196 | ||
1197 | if (nvl == NULL || | |
1198 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
1199 | return (NULL); | |
1200 | ||
1201 | curr = NVPAIR2I_NVP(nvp); | |
1202 | ||
1203 | if (nvp == NULL) | |
1204 | curr = priv->nvp_last; | |
1205 | else if (priv->nvp_curr == curr || nvlist_contains_nvp(nvl, nvp)) | |
1206 | curr = curr->nvi_prev; | |
1207 | else | |
1208 | curr = NULL; | |
1209 | ||
1210 | priv->nvp_curr = curr; | |
1211 | ||
1212 | return (curr != NULL ? &curr->nvi_nvp : NULL); | |
1213 | } | |
1214 | ||
1215 | boolean_t | |
1216 | nvlist_empty(nvlist_t *nvl) | |
1217 | { | |
1218 | nvpriv_t *priv; | |
1219 | ||
1220 | if (nvl == NULL || | |
1221 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
1222 | return (B_TRUE); | |
1223 | ||
1224 | return (priv->nvp_list == NULL); | |
1225 | } | |
1226 | ||
34dc7c2f BB |
1227 | char * |
1228 | nvpair_name(nvpair_t *nvp) | |
1229 | { | |
1230 | return (NVP_NAME(nvp)); | |
1231 | } | |
1232 | ||
1233 | data_type_t | |
1234 | nvpair_type(nvpair_t *nvp) | |
1235 | { | |
1236 | return (NVP_TYPE(nvp)); | |
1237 | } | |
1238 | ||
b128c09f BB |
1239 | int |
1240 | nvpair_type_is_array(nvpair_t *nvp) | |
1241 | { | |
1242 | data_type_t type = NVP_TYPE(nvp); | |
1243 | ||
1244 | if ((type == DATA_TYPE_BYTE_ARRAY) || | |
1245 | (type == DATA_TYPE_UINT8_ARRAY) || | |
1246 | (type == DATA_TYPE_INT16_ARRAY) || | |
1247 | (type == DATA_TYPE_UINT16_ARRAY) || | |
1248 | (type == DATA_TYPE_INT32_ARRAY) || | |
1249 | (type == DATA_TYPE_UINT32_ARRAY) || | |
1250 | (type == DATA_TYPE_INT64_ARRAY) || | |
1251 | (type == DATA_TYPE_UINT64_ARRAY) || | |
1252 | (type == DATA_TYPE_BOOLEAN_ARRAY) || | |
1253 | (type == DATA_TYPE_STRING_ARRAY) || | |
1254 | (type == DATA_TYPE_NVLIST_ARRAY)) | |
1255 | return (1); | |
1256 | return (0); | |
1257 | ||
1258 | } | |
1259 | ||
34dc7c2f BB |
1260 | static int |
1261 | nvpair_value_common(nvpair_t *nvp, data_type_t type, uint_t *nelem, void *data) | |
1262 | { | |
cae5b340 AX |
1263 | int value_sz; |
1264 | ||
34dc7c2f BB |
1265 | if (nvp == NULL || nvpair_type(nvp) != type) |
1266 | return (EINVAL); | |
1267 | ||
1268 | /* | |
1269 | * For non-array types, we copy the data. | |
1270 | * For array types (including string), we set a pointer. | |
1271 | */ | |
1272 | switch (type) { | |
1273 | case DATA_TYPE_BOOLEAN: | |
1274 | if (nelem != NULL) | |
1275 | *nelem = 0; | |
1276 | break; | |
1277 | ||
1278 | case DATA_TYPE_BOOLEAN_VALUE: | |
1279 | case DATA_TYPE_BYTE: | |
1280 | case DATA_TYPE_INT8: | |
1281 | case DATA_TYPE_UINT8: | |
1282 | case DATA_TYPE_INT16: | |
1283 | case DATA_TYPE_UINT16: | |
1284 | case DATA_TYPE_INT32: | |
1285 | case DATA_TYPE_UINT32: | |
1286 | case DATA_TYPE_INT64: | |
1287 | case DATA_TYPE_UINT64: | |
1288 | case DATA_TYPE_HRTIME: | |
b128c09f BB |
1289 | #if !defined(_KERNEL) |
1290 | case DATA_TYPE_DOUBLE: | |
1291 | #endif | |
34dc7c2f BB |
1292 | if (data == NULL) |
1293 | return (EINVAL); | |
cae5b340 AX |
1294 | if ((value_sz = i_get_value_size(type, NULL, 1)) < 0) |
1295 | return (EINVAL); | |
1296 | bcopy(NVP_VALUE(nvp), data, (size_t)value_sz); | |
34dc7c2f BB |
1297 | if (nelem != NULL) |
1298 | *nelem = 1; | |
1299 | break; | |
1300 | ||
1301 | case DATA_TYPE_NVLIST: | |
1302 | case DATA_TYPE_STRING: | |
1303 | if (data == NULL) | |
1304 | return (EINVAL); | |
1305 | *(void **)data = (void *)NVP_VALUE(nvp); | |
1306 | if (nelem != NULL) | |
1307 | *nelem = 1; | |
1308 | break; | |
1309 | ||
1310 | case DATA_TYPE_BOOLEAN_ARRAY: | |
1311 | case DATA_TYPE_BYTE_ARRAY: | |
1312 | case DATA_TYPE_INT8_ARRAY: | |
1313 | case DATA_TYPE_UINT8_ARRAY: | |
1314 | case DATA_TYPE_INT16_ARRAY: | |
1315 | case DATA_TYPE_UINT16_ARRAY: | |
1316 | case DATA_TYPE_INT32_ARRAY: | |
1317 | case DATA_TYPE_UINT32_ARRAY: | |
1318 | case DATA_TYPE_INT64_ARRAY: | |
1319 | case DATA_TYPE_UINT64_ARRAY: | |
1320 | case DATA_TYPE_STRING_ARRAY: | |
1321 | case DATA_TYPE_NVLIST_ARRAY: | |
1322 | if (nelem == NULL || data == NULL) | |
1323 | return (EINVAL); | |
1324 | if ((*nelem = NVP_NELEM(nvp)) != 0) | |
1325 | *(void **)data = (void *)NVP_VALUE(nvp); | |
1326 | else | |
1327 | *(void **)data = NULL; | |
1328 | break; | |
1329 | ||
1330 | default: | |
1331 | return (ENOTSUP); | |
1332 | } | |
1333 | ||
1334 | return (0); | |
1335 | } | |
1336 | ||
1337 | static int | |
1338 | nvlist_lookup_common(nvlist_t *nvl, const char *name, data_type_t type, | |
1339 | uint_t *nelem, void *data) | |
1340 | { | |
1341 | nvpriv_t *priv; | |
1342 | nvpair_t *nvp; | |
1343 | i_nvp_t *curr; | |
1344 | ||
1345 | if (name == NULL || nvl == NULL || | |
1346 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
1347 | return (EINVAL); | |
1348 | ||
1349 | if (!(nvl->nvl_nvflag & (NV_UNIQUE_NAME | NV_UNIQUE_NAME_TYPE))) | |
1350 | return (ENOTSUP); | |
1351 | ||
1352 | for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) { | |
1353 | nvp = &curr->nvi_nvp; | |
1354 | ||
1355 | if (strcmp(name, NVP_NAME(nvp)) == 0 && NVP_TYPE(nvp) == type) | |
1356 | return (nvpair_value_common(nvp, type, nelem, data)); | |
1357 | } | |
1358 | ||
1359 | return (ENOENT); | |
1360 | } | |
1361 | ||
1362 | int | |
1363 | nvlist_lookup_boolean(nvlist_t *nvl, const char *name) | |
1364 | { | |
1365 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_BOOLEAN, NULL, NULL)); | |
1366 | } | |
1367 | ||
1368 | int | |
1369 | nvlist_lookup_boolean_value(nvlist_t *nvl, const char *name, boolean_t *val) | |
1370 | { | |
1371 | return (nvlist_lookup_common(nvl, name, | |
1372 | DATA_TYPE_BOOLEAN_VALUE, NULL, val)); | |
1373 | } | |
1374 | ||
1375 | int | |
1376 | nvlist_lookup_byte(nvlist_t *nvl, const char *name, uchar_t *val) | |
1377 | { | |
1378 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_BYTE, NULL, val)); | |
1379 | } | |
1380 | ||
1381 | int | |
1382 | nvlist_lookup_int8(nvlist_t *nvl, const char *name, int8_t *val) | |
1383 | { | |
1384 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT8, NULL, val)); | |
1385 | } | |
1386 | ||
1387 | int | |
1388 | nvlist_lookup_uint8(nvlist_t *nvl, const char *name, uint8_t *val) | |
1389 | { | |
1390 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT8, NULL, val)); | |
1391 | } | |
1392 | ||
1393 | int | |
1394 | nvlist_lookup_int16(nvlist_t *nvl, const char *name, int16_t *val) | |
1395 | { | |
1396 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT16, NULL, val)); | |
1397 | } | |
1398 | ||
1399 | int | |
1400 | nvlist_lookup_uint16(nvlist_t *nvl, const char *name, uint16_t *val) | |
1401 | { | |
1402 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT16, NULL, val)); | |
1403 | } | |
1404 | ||
1405 | int | |
1406 | nvlist_lookup_int32(nvlist_t *nvl, const char *name, int32_t *val) | |
1407 | { | |
1408 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT32, NULL, val)); | |
1409 | } | |
1410 | ||
1411 | int | |
1412 | nvlist_lookup_uint32(nvlist_t *nvl, const char *name, uint32_t *val) | |
1413 | { | |
1414 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT32, NULL, val)); | |
1415 | } | |
1416 | ||
1417 | int | |
1418 | nvlist_lookup_int64(nvlist_t *nvl, const char *name, int64_t *val) | |
1419 | { | |
1420 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT64, NULL, val)); | |
1421 | } | |
1422 | ||
1423 | int | |
1424 | nvlist_lookup_uint64(nvlist_t *nvl, const char *name, uint64_t *val) | |
1425 | { | |
1426 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT64, NULL, val)); | |
1427 | } | |
1428 | ||
b128c09f BB |
1429 | #if !defined(_KERNEL) |
1430 | int | |
1431 | nvlist_lookup_double(nvlist_t *nvl, const char *name, double *val) | |
1432 | { | |
1433 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_DOUBLE, NULL, val)); | |
1434 | } | |
1435 | #endif | |
1436 | ||
34dc7c2f BB |
1437 | int |
1438 | nvlist_lookup_string(nvlist_t *nvl, const char *name, char **val) | |
1439 | { | |
1440 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_STRING, NULL, val)); | |
1441 | } | |
1442 | ||
1443 | int | |
1444 | nvlist_lookup_nvlist(nvlist_t *nvl, const char *name, nvlist_t **val) | |
1445 | { | |
1446 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_NVLIST, NULL, val)); | |
1447 | } | |
1448 | ||
1449 | int | |
1450 | nvlist_lookup_boolean_array(nvlist_t *nvl, const char *name, | |
1451 | boolean_t **a, uint_t *n) | |
1452 | { | |
1453 | return (nvlist_lookup_common(nvl, name, | |
1454 | DATA_TYPE_BOOLEAN_ARRAY, n, a)); | |
1455 | } | |
1456 | ||
1457 | int | |
1458 | nvlist_lookup_byte_array(nvlist_t *nvl, const char *name, | |
1459 | uchar_t **a, uint_t *n) | |
1460 | { | |
1461 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_BYTE_ARRAY, n, a)); | |
1462 | } | |
1463 | ||
1464 | int | |
1465 | nvlist_lookup_int8_array(nvlist_t *nvl, const char *name, int8_t **a, uint_t *n) | |
1466 | { | |
1467 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT8_ARRAY, n, a)); | |
1468 | } | |
1469 | ||
1470 | int | |
1471 | nvlist_lookup_uint8_array(nvlist_t *nvl, const char *name, | |
1472 | uint8_t **a, uint_t *n) | |
1473 | { | |
1474 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT8_ARRAY, n, a)); | |
1475 | } | |
1476 | ||
1477 | int | |
1478 | nvlist_lookup_int16_array(nvlist_t *nvl, const char *name, | |
1479 | int16_t **a, uint_t *n) | |
1480 | { | |
1481 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT16_ARRAY, n, a)); | |
1482 | } | |
1483 | ||
1484 | int | |
1485 | nvlist_lookup_uint16_array(nvlist_t *nvl, const char *name, | |
1486 | uint16_t **a, uint_t *n) | |
1487 | { | |
1488 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT16_ARRAY, n, a)); | |
1489 | } | |
1490 | ||
1491 | int | |
1492 | nvlist_lookup_int32_array(nvlist_t *nvl, const char *name, | |
1493 | int32_t **a, uint_t *n) | |
1494 | { | |
1495 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT32_ARRAY, n, a)); | |
1496 | } | |
1497 | ||
1498 | int | |
1499 | nvlist_lookup_uint32_array(nvlist_t *nvl, const char *name, | |
1500 | uint32_t **a, uint_t *n) | |
1501 | { | |
1502 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT32_ARRAY, n, a)); | |
1503 | } | |
1504 | ||
1505 | int | |
1506 | nvlist_lookup_int64_array(nvlist_t *nvl, const char *name, | |
1507 | int64_t **a, uint_t *n) | |
1508 | { | |
1509 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_INT64_ARRAY, n, a)); | |
1510 | } | |
1511 | ||
1512 | int | |
1513 | nvlist_lookup_uint64_array(nvlist_t *nvl, const char *name, | |
1514 | uint64_t **a, uint_t *n) | |
1515 | { | |
1516 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_UINT64_ARRAY, n, a)); | |
1517 | } | |
1518 | ||
1519 | int | |
1520 | nvlist_lookup_string_array(nvlist_t *nvl, const char *name, | |
1521 | char ***a, uint_t *n) | |
1522 | { | |
1523 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_STRING_ARRAY, n, a)); | |
1524 | } | |
1525 | ||
1526 | int | |
1527 | nvlist_lookup_nvlist_array(nvlist_t *nvl, const char *name, | |
1528 | nvlist_t ***a, uint_t *n) | |
1529 | { | |
1530 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_NVLIST_ARRAY, n, a)); | |
1531 | } | |
1532 | ||
1533 | int | |
1534 | nvlist_lookup_hrtime(nvlist_t *nvl, const char *name, hrtime_t *val) | |
1535 | { | |
1536 | return (nvlist_lookup_common(nvl, name, DATA_TYPE_HRTIME, NULL, val)); | |
1537 | } | |
1538 | ||
1539 | int | |
1540 | nvlist_lookup_pairs(nvlist_t *nvl, int flag, ...) | |
1541 | { | |
1542 | va_list ap; | |
1543 | char *name; | |
1544 | int noentok = (flag & NV_FLAG_NOENTOK ? 1 : 0); | |
1545 | int ret = 0; | |
1546 | ||
1547 | va_start(ap, flag); | |
1548 | while (ret == 0 && (name = va_arg(ap, char *)) != NULL) { | |
1549 | data_type_t type; | |
1550 | void *val; | |
1551 | uint_t *nelem; | |
1552 | ||
1553 | switch (type = va_arg(ap, data_type_t)) { | |
1554 | case DATA_TYPE_BOOLEAN: | |
1555 | ret = nvlist_lookup_common(nvl, name, type, NULL, NULL); | |
1556 | break; | |
1557 | ||
1558 | case DATA_TYPE_BOOLEAN_VALUE: | |
1559 | case DATA_TYPE_BYTE: | |
1560 | case DATA_TYPE_INT8: | |
1561 | case DATA_TYPE_UINT8: | |
1562 | case DATA_TYPE_INT16: | |
1563 | case DATA_TYPE_UINT16: | |
1564 | case DATA_TYPE_INT32: | |
1565 | case DATA_TYPE_UINT32: | |
1566 | case DATA_TYPE_INT64: | |
1567 | case DATA_TYPE_UINT64: | |
1568 | case DATA_TYPE_HRTIME: | |
1569 | case DATA_TYPE_STRING: | |
1570 | case DATA_TYPE_NVLIST: | |
b128c09f BB |
1571 | #if !defined(_KERNEL) |
1572 | case DATA_TYPE_DOUBLE: | |
1573 | #endif | |
34dc7c2f BB |
1574 | val = va_arg(ap, void *); |
1575 | ret = nvlist_lookup_common(nvl, name, type, NULL, val); | |
1576 | break; | |
1577 | ||
1578 | case DATA_TYPE_BYTE_ARRAY: | |
1579 | case DATA_TYPE_BOOLEAN_ARRAY: | |
1580 | case DATA_TYPE_INT8_ARRAY: | |
1581 | case DATA_TYPE_UINT8_ARRAY: | |
1582 | case DATA_TYPE_INT16_ARRAY: | |
1583 | case DATA_TYPE_UINT16_ARRAY: | |
1584 | case DATA_TYPE_INT32_ARRAY: | |
1585 | case DATA_TYPE_UINT32_ARRAY: | |
1586 | case DATA_TYPE_INT64_ARRAY: | |
1587 | case DATA_TYPE_UINT64_ARRAY: | |
1588 | case DATA_TYPE_STRING_ARRAY: | |
1589 | case DATA_TYPE_NVLIST_ARRAY: | |
1590 | val = va_arg(ap, void *); | |
1591 | nelem = va_arg(ap, uint_t *); | |
1592 | ret = nvlist_lookup_common(nvl, name, type, nelem, val); | |
1593 | break; | |
1594 | ||
1595 | default: | |
1596 | ret = EINVAL; | |
1597 | } | |
1598 | ||
1599 | if (ret == ENOENT && noentok) | |
1600 | ret = 0; | |
1601 | } | |
1602 | va_end(ap); | |
1603 | ||
1604 | return (ret); | |
1605 | } | |
1606 | ||
b128c09f BB |
1607 | /* |
1608 | * Find the 'name'ed nvpair in the nvlist 'nvl'. If 'name' found, the function | |
1609 | * returns zero and a pointer to the matching nvpair is returned in '*ret' | |
1610 | * (given 'ret' is non-NULL). If 'sep' is specified then 'name' will penitrate | |
1611 | * multiple levels of embedded nvlists, with 'sep' as the separator. As an | |
1612 | * example, if sep is '.', name might look like: "a" or "a.b" or "a.c[3]" or | |
1613 | * "a.d[3].e[1]". This matches the C syntax for array embed (for convience, | |
1614 | * code also supports "a.d[3]e[1]" syntax). | |
1615 | * | |
1616 | * If 'ip' is non-NULL and the last name component is an array, return the | |
1617 | * value of the "...[index]" array index in *ip. For an array reference that | |
1618 | * is not indexed, *ip will be returned as -1. If there is a syntax error in | |
1619 | * 'name', and 'ep' is non-NULL then *ep will be set to point to the location | |
1620 | * inside the 'name' string where the syntax error was detected. | |
1621 | */ | |
1622 | static int | |
1623 | nvlist_lookup_nvpair_ei_sep(nvlist_t *nvl, const char *name, const char sep, | |
1624 | nvpair_t **ret, int *ip, char **ep) | |
1625 | { | |
1626 | nvpair_t *nvp; | |
1627 | const char *np; | |
a08ee875 | 1628 | char *sepp = NULL; |
b128c09f BB |
1629 | char *idxp, *idxep; |
1630 | nvlist_t **nva; | |
d4ed6673 | 1631 | long idx = 0; |
b128c09f BB |
1632 | int n; |
1633 | ||
1634 | if (ip) | |
1635 | *ip = -1; /* not indexed */ | |
1636 | if (ep) | |
1637 | *ep = NULL; | |
1638 | ||
1639 | if ((nvl == NULL) || (name == NULL)) | |
34dc7c2f BB |
1640 | return (EINVAL); |
1641 | ||
b128c09f BB |
1642 | /* step through components of name */ |
1643 | for (np = name; np && *np; np = sepp) { | |
1644 | /* ensure unique names */ | |
1645 | if (!(nvl->nvl_nvflag & NV_UNIQUE_NAME)) | |
1646 | return (ENOTSUP); | |
34dc7c2f | 1647 | |
b128c09f BB |
1648 | /* skip white space */ |
1649 | skip_whitespace(np); | |
1650 | if (*np == 0) | |
1651 | break; | |
34dc7c2f | 1652 | |
b128c09f BB |
1653 | /* set 'sepp' to end of current component 'np' */ |
1654 | if (sep) | |
1655 | sepp = strchr(np, sep); | |
1656 | else | |
1657 | sepp = NULL; | |
1658 | ||
1659 | /* find start of next "[ index ]..." */ | |
1660 | idxp = strchr(np, '['); | |
1661 | ||
1662 | /* if sepp comes first, set idxp to NULL */ | |
1663 | if (sepp && idxp && (sepp < idxp)) | |
1664 | idxp = NULL; | |
1665 | ||
1666 | /* | |
1667 | * At this point 'idxp' is set if there is an index | |
1668 | * expected for the current component. | |
1669 | */ | |
1670 | if (idxp) { | |
1671 | /* set 'n' to length of current 'np' name component */ | |
1672 | n = idxp++ - np; | |
1673 | ||
1674 | /* keep sepp up to date for *ep use as we advance */ | |
1675 | skip_whitespace(idxp); | |
1676 | sepp = idxp; | |
1677 | ||
1678 | /* determine the index value */ | |
1679 | #if defined(_KERNEL) && !defined(_BOOT) | |
1680 | if (ddi_strtol(idxp, &idxep, 0, &idx)) | |
1681 | goto fail; | |
1682 | #else | |
1683 | idx = strtol(idxp, &idxep, 0); | |
1684 | #endif | |
1685 | if (idxep == idxp) | |
1686 | goto fail; | |
1687 | ||
1688 | /* keep sepp up to date for *ep use as we advance */ | |
1689 | sepp = idxep; | |
1690 | ||
1691 | /* skip white space index value and check for ']' */ | |
1692 | skip_whitespace(sepp); | |
1693 | if (*sepp++ != ']') | |
1694 | goto fail; | |
1695 | ||
1696 | /* for embedded arrays, support C syntax: "a[1].b" */ | |
1697 | skip_whitespace(sepp); | |
1698 | if (sep && (*sepp == sep)) | |
1699 | sepp++; | |
1700 | } else if (sepp) { | |
1701 | n = sepp++ - np; | |
1702 | } else { | |
1703 | n = strlen(np); | |
1704 | } | |
1705 | ||
1706 | /* trim trailing whitespace by reducing length of 'np' */ | |
1707 | if (n == 0) | |
1708 | goto fail; | |
1709 | for (n--; (np[n] == ' ') || (np[n] == '\t'); n--) | |
1710 | ; | |
1711 | n++; | |
1712 | ||
1713 | /* skip whitespace, and set sepp to NULL if complete */ | |
1714 | if (sepp) { | |
1715 | skip_whitespace(sepp); | |
1716 | if (*sepp == 0) | |
1717 | sepp = NULL; | |
1718 | } | |
1719 | ||
1720 | /* | |
1721 | * At this point: | |
1722 | * o 'n' is the length of current 'np' component. | |
1723 | * o 'idxp' is set if there was an index, and value 'idx'. | |
1724 | * o 'sepp' is set to the beginning of the next component, | |
1725 | * and set to NULL if we have no more components. | |
1726 | * | |
1727 | * Search for nvpair with matching component name. | |
1728 | */ | |
1729 | for (nvp = nvlist_next_nvpair(nvl, NULL); nvp != NULL; | |
1730 | nvp = nvlist_next_nvpair(nvl, nvp)) { | |
1731 | ||
1732 | /* continue if no match on name */ | |
1733 | if (strncmp(np, nvpair_name(nvp), n) || | |
1734 | (strlen(nvpair_name(nvp)) != n)) | |
1735 | continue; | |
1736 | ||
1737 | /* if indexed, verify type is array oriented */ | |
1738 | if (idxp && !nvpair_type_is_array(nvp)) | |
1739 | goto fail; | |
1740 | ||
1741 | /* | |
1742 | * Full match found, return nvp and idx if this | |
1743 | * was the last component. | |
1744 | */ | |
1745 | if (sepp == NULL) { | |
1746 | if (ret) | |
1747 | *ret = nvp; | |
1748 | if (ip && idxp) | |
1749 | *ip = (int)idx; /* return index */ | |
1750 | return (0); /* found */ | |
1751 | } | |
1752 | ||
1753 | /* | |
1754 | * More components: current match must be | |
1755 | * of DATA_TYPE_NVLIST or DATA_TYPE_NVLIST_ARRAY | |
1756 | * to support going deeper. | |
1757 | */ | |
1758 | if (nvpair_type(nvp) == DATA_TYPE_NVLIST) { | |
1759 | nvl = EMBEDDED_NVL(nvp); | |
1760 | break; | |
1761 | } else if (nvpair_type(nvp) == DATA_TYPE_NVLIST_ARRAY) { | |
1762 | (void) nvpair_value_nvlist_array(nvp, | |
1763 | &nva, (uint_t *)&n); | |
1764 | if ((n < 0) || (idx >= n)) | |
1765 | goto fail; | |
1766 | nvl = nva[idx]; | |
1767 | break; | |
1768 | } | |
1769 | ||
1770 | /* type does not support more levels */ | |
1771 | goto fail; | |
34dc7c2f | 1772 | } |
b128c09f BB |
1773 | if (nvp == NULL) |
1774 | goto fail; /* 'name' not found */ | |
1775 | ||
1776 | /* search for match of next component in embedded 'nvl' list */ | |
34dc7c2f BB |
1777 | } |
1778 | ||
b128c09f BB |
1779 | fail: if (ep && sepp) |
1780 | *ep = sepp; | |
1781 | return (EINVAL); | |
1782 | } | |
1783 | ||
1784 | /* | |
1785 | * Return pointer to nvpair with specified 'name'. | |
1786 | */ | |
1787 | int | |
1788 | nvlist_lookup_nvpair(nvlist_t *nvl, const char *name, nvpair_t **ret) | |
1789 | { | |
1790 | return (nvlist_lookup_nvpair_ei_sep(nvl, name, 0, ret, NULL, NULL)); | |
1791 | } | |
1792 | ||
1793 | /* | |
1794 | * Determine if named nvpair exists in nvlist (use embedded separator of '.' | |
1795 | * and return array index). See nvlist_lookup_nvpair_ei_sep for more detailed | |
1796 | * description. | |
1797 | */ | |
1798 | int nvlist_lookup_nvpair_embedded_index(nvlist_t *nvl, | |
1799 | const char *name, nvpair_t **ret, int *ip, char **ep) | |
1800 | { | |
1801 | return (nvlist_lookup_nvpair_ei_sep(nvl, name, '.', ret, ip, ep)); | |
34dc7c2f BB |
1802 | } |
1803 | ||
1804 | boolean_t | |
1805 | nvlist_exists(nvlist_t *nvl, const char *name) | |
1806 | { | |
1807 | nvpriv_t *priv; | |
1808 | nvpair_t *nvp; | |
1809 | i_nvp_t *curr; | |
1810 | ||
1811 | if (name == NULL || nvl == NULL || | |
1812 | (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
1813 | return (B_FALSE); | |
1814 | ||
1815 | for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) { | |
1816 | nvp = &curr->nvi_nvp; | |
1817 | ||
1818 | if (strcmp(name, NVP_NAME(nvp)) == 0) | |
1819 | return (B_TRUE); | |
1820 | } | |
1821 | ||
1822 | return (B_FALSE); | |
1823 | } | |
1824 | ||
1825 | int | |
1826 | nvpair_value_boolean_value(nvpair_t *nvp, boolean_t *val) | |
1827 | { | |
1828 | return (nvpair_value_common(nvp, DATA_TYPE_BOOLEAN_VALUE, NULL, val)); | |
1829 | } | |
1830 | ||
1831 | int | |
1832 | nvpair_value_byte(nvpair_t *nvp, uchar_t *val) | |
1833 | { | |
1834 | return (nvpair_value_common(nvp, DATA_TYPE_BYTE, NULL, val)); | |
1835 | } | |
1836 | ||
1837 | int | |
1838 | nvpair_value_int8(nvpair_t *nvp, int8_t *val) | |
1839 | { | |
1840 | return (nvpair_value_common(nvp, DATA_TYPE_INT8, NULL, val)); | |
1841 | } | |
1842 | ||
1843 | int | |
1844 | nvpair_value_uint8(nvpair_t *nvp, uint8_t *val) | |
1845 | { | |
1846 | return (nvpair_value_common(nvp, DATA_TYPE_UINT8, NULL, val)); | |
1847 | } | |
1848 | ||
1849 | int | |
1850 | nvpair_value_int16(nvpair_t *nvp, int16_t *val) | |
1851 | { | |
1852 | return (nvpair_value_common(nvp, DATA_TYPE_INT16, NULL, val)); | |
1853 | } | |
1854 | ||
1855 | int | |
1856 | nvpair_value_uint16(nvpair_t *nvp, uint16_t *val) | |
1857 | { | |
1858 | return (nvpair_value_common(nvp, DATA_TYPE_UINT16, NULL, val)); | |
1859 | } | |
1860 | ||
1861 | int | |
1862 | nvpair_value_int32(nvpair_t *nvp, int32_t *val) | |
1863 | { | |
1864 | return (nvpair_value_common(nvp, DATA_TYPE_INT32, NULL, val)); | |
1865 | } | |
1866 | ||
1867 | int | |
1868 | nvpair_value_uint32(nvpair_t *nvp, uint32_t *val) | |
1869 | { | |
1870 | return (nvpair_value_common(nvp, DATA_TYPE_UINT32, NULL, val)); | |
1871 | } | |
1872 | ||
1873 | int | |
1874 | nvpair_value_int64(nvpair_t *nvp, int64_t *val) | |
1875 | { | |
1876 | return (nvpair_value_common(nvp, DATA_TYPE_INT64, NULL, val)); | |
1877 | } | |
1878 | ||
1879 | int | |
1880 | nvpair_value_uint64(nvpair_t *nvp, uint64_t *val) | |
1881 | { | |
1882 | return (nvpair_value_common(nvp, DATA_TYPE_UINT64, NULL, val)); | |
1883 | } | |
1884 | ||
b128c09f BB |
1885 | #if !defined(_KERNEL) |
1886 | int | |
1887 | nvpair_value_double(nvpair_t *nvp, double *val) | |
1888 | { | |
1889 | return (nvpair_value_common(nvp, DATA_TYPE_DOUBLE, NULL, val)); | |
1890 | } | |
1891 | #endif | |
1892 | ||
34dc7c2f BB |
1893 | int |
1894 | nvpair_value_string(nvpair_t *nvp, char **val) | |
1895 | { | |
1896 | return (nvpair_value_common(nvp, DATA_TYPE_STRING, NULL, val)); | |
1897 | } | |
1898 | ||
1899 | int | |
1900 | nvpair_value_nvlist(nvpair_t *nvp, nvlist_t **val) | |
1901 | { | |
1902 | return (nvpair_value_common(nvp, DATA_TYPE_NVLIST, NULL, val)); | |
1903 | } | |
1904 | ||
1905 | int | |
1906 | nvpair_value_boolean_array(nvpair_t *nvp, boolean_t **val, uint_t *nelem) | |
1907 | { | |
1908 | return (nvpair_value_common(nvp, DATA_TYPE_BOOLEAN_ARRAY, nelem, val)); | |
1909 | } | |
1910 | ||
1911 | int | |
1912 | nvpair_value_byte_array(nvpair_t *nvp, uchar_t **val, uint_t *nelem) | |
1913 | { | |
1914 | return (nvpair_value_common(nvp, DATA_TYPE_BYTE_ARRAY, nelem, val)); | |
1915 | } | |
1916 | ||
1917 | int | |
1918 | nvpair_value_int8_array(nvpair_t *nvp, int8_t **val, uint_t *nelem) | |
1919 | { | |
1920 | return (nvpair_value_common(nvp, DATA_TYPE_INT8_ARRAY, nelem, val)); | |
1921 | } | |
1922 | ||
1923 | int | |
1924 | nvpair_value_uint8_array(nvpair_t *nvp, uint8_t **val, uint_t *nelem) | |
1925 | { | |
1926 | return (nvpair_value_common(nvp, DATA_TYPE_UINT8_ARRAY, nelem, val)); | |
1927 | } | |
1928 | ||
1929 | int | |
1930 | nvpair_value_int16_array(nvpair_t *nvp, int16_t **val, uint_t *nelem) | |
1931 | { | |
1932 | return (nvpair_value_common(nvp, DATA_TYPE_INT16_ARRAY, nelem, val)); | |
1933 | } | |
1934 | ||
1935 | int | |
1936 | nvpair_value_uint16_array(nvpair_t *nvp, uint16_t **val, uint_t *nelem) | |
1937 | { | |
1938 | return (nvpair_value_common(nvp, DATA_TYPE_UINT16_ARRAY, nelem, val)); | |
1939 | } | |
1940 | ||
1941 | int | |
1942 | nvpair_value_int32_array(nvpair_t *nvp, int32_t **val, uint_t *nelem) | |
1943 | { | |
1944 | return (nvpair_value_common(nvp, DATA_TYPE_INT32_ARRAY, nelem, val)); | |
1945 | } | |
1946 | ||
1947 | int | |
1948 | nvpair_value_uint32_array(nvpair_t *nvp, uint32_t **val, uint_t *nelem) | |
1949 | { | |
1950 | return (nvpair_value_common(nvp, DATA_TYPE_UINT32_ARRAY, nelem, val)); | |
1951 | } | |
1952 | ||
1953 | int | |
1954 | nvpair_value_int64_array(nvpair_t *nvp, int64_t **val, uint_t *nelem) | |
1955 | { | |
1956 | return (nvpair_value_common(nvp, DATA_TYPE_INT64_ARRAY, nelem, val)); | |
1957 | } | |
1958 | ||
1959 | int | |
1960 | nvpair_value_uint64_array(nvpair_t *nvp, uint64_t **val, uint_t *nelem) | |
1961 | { | |
1962 | return (nvpair_value_common(nvp, DATA_TYPE_UINT64_ARRAY, nelem, val)); | |
1963 | } | |
1964 | ||
1965 | int | |
1966 | nvpair_value_string_array(nvpair_t *nvp, char ***val, uint_t *nelem) | |
1967 | { | |
1968 | return (nvpair_value_common(nvp, DATA_TYPE_STRING_ARRAY, nelem, val)); | |
1969 | } | |
1970 | ||
1971 | int | |
1972 | nvpair_value_nvlist_array(nvpair_t *nvp, nvlist_t ***val, uint_t *nelem) | |
1973 | { | |
1974 | return (nvpair_value_common(nvp, DATA_TYPE_NVLIST_ARRAY, nelem, val)); | |
1975 | } | |
1976 | ||
1977 | int | |
1978 | nvpair_value_hrtime(nvpair_t *nvp, hrtime_t *val) | |
1979 | { | |
1980 | return (nvpair_value_common(nvp, DATA_TYPE_HRTIME, NULL, val)); | |
1981 | } | |
1982 | ||
1983 | /* | |
1984 | * Add specified pair to the list. | |
1985 | */ | |
1986 | int | |
1987 | nvlist_add_nvpair(nvlist_t *nvl, nvpair_t *nvp) | |
1988 | { | |
1989 | if (nvl == NULL || nvp == NULL) | |
1990 | return (EINVAL); | |
1991 | ||
1992 | return (nvlist_add_common(nvl, NVP_NAME(nvp), NVP_TYPE(nvp), | |
1993 | NVP_NELEM(nvp), NVP_VALUE(nvp))); | |
1994 | } | |
1995 | ||
1996 | /* | |
1997 | * Merge the supplied nvlists and put the result in dst. | |
1998 | * The merged list will contain all names specified in both lists, | |
1999 | * the values are taken from nvl in the case of duplicates. | |
2000 | * Return 0 on success. | |
2001 | */ | |
2002 | /*ARGSUSED*/ | |
2003 | int | |
2004 | nvlist_merge(nvlist_t *dst, nvlist_t *nvl, int flag) | |
2005 | { | |
2006 | if (nvl == NULL || dst == NULL) | |
2007 | return (EINVAL); | |
2008 | ||
2009 | if (dst != nvl) | |
2010 | return (nvlist_copy_pairs(nvl, dst)); | |
2011 | ||
2012 | return (0); | |
2013 | } | |
2014 | ||
2015 | /* | |
2016 | * Encoding related routines | |
2017 | */ | |
2018 | #define NVS_OP_ENCODE 0 | |
2019 | #define NVS_OP_DECODE 1 | |
2020 | #define NVS_OP_GETSIZE 2 | |
2021 | ||
2022 | typedef struct nvs_ops nvs_ops_t; | |
2023 | ||
2024 | typedef struct { | |
2025 | int nvs_op; | |
2026 | const nvs_ops_t *nvs_ops; | |
2027 | void *nvs_private; | |
2028 | nvpriv_t *nvs_priv; | |
87dac73d | 2029 | int nvs_recursion; |
34dc7c2f BB |
2030 | } nvstream_t; |
2031 | ||
2032 | /* | |
2033 | * nvs operations are: | |
2034 | * - nvs_nvlist | |
cae5b340 | 2035 | * encoding / decoding of an nvlist header (nvlist_t) |
34dc7c2f BB |
2036 | * calculates the size used for header and end detection |
2037 | * | |
2038 | * - nvs_nvpair | |
2039 | * responsible for the first part of encoding / decoding of an nvpair | |
2040 | * calculates the decoded size of an nvpair | |
2041 | * | |
2042 | * - nvs_nvp_op | |
2043 | * second part of encoding / decoding of an nvpair | |
2044 | * | |
2045 | * - nvs_nvp_size | |
2046 | * calculates the encoding size of an nvpair | |
2047 | * | |
2048 | * - nvs_nvl_fini | |
2049 | * encodes the end detection mark (zeros). | |
2050 | */ | |
2051 | struct nvs_ops { | |
2052 | int (*nvs_nvlist)(nvstream_t *, nvlist_t *, size_t *); | |
2053 | int (*nvs_nvpair)(nvstream_t *, nvpair_t *, size_t *); | |
2054 | int (*nvs_nvp_op)(nvstream_t *, nvpair_t *); | |
2055 | int (*nvs_nvp_size)(nvstream_t *, nvpair_t *, size_t *); | |
2056 | int (*nvs_nvl_fini)(nvstream_t *); | |
2057 | }; | |
2058 | ||
2059 | typedef struct { | |
2060 | char nvh_encoding; /* nvs encoding method */ | |
2061 | char nvh_endian; /* nvs endian */ | |
2062 | char nvh_reserved1; /* reserved for future use */ | |
2063 | char nvh_reserved2; /* reserved for future use */ | |
2064 | } nvs_header_t; | |
2065 | ||
2066 | static int | |
2067 | nvs_encode_pairs(nvstream_t *nvs, nvlist_t *nvl) | |
2068 | { | |
2069 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
2070 | i_nvp_t *curr; | |
2071 | ||
2072 | /* | |
2073 | * Walk nvpair in list and encode each nvpair | |
2074 | */ | |
2075 | for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) | |
2076 | if (nvs->nvs_ops->nvs_nvpair(nvs, &curr->nvi_nvp, NULL) != 0) | |
2077 | return (EFAULT); | |
2078 | ||
2079 | return (nvs->nvs_ops->nvs_nvl_fini(nvs)); | |
2080 | } | |
2081 | ||
2082 | static int | |
2083 | nvs_decode_pairs(nvstream_t *nvs, nvlist_t *nvl) | |
2084 | { | |
2085 | nvpair_t *nvp; | |
2086 | size_t nvsize; | |
2087 | int err; | |
2088 | ||
2089 | /* | |
2090 | * Get decoded size of next pair in stream, alloc | |
2091 | * memory for nvpair_t, then decode the nvpair | |
2092 | */ | |
2093 | while ((err = nvs->nvs_ops->nvs_nvpair(nvs, NULL, &nvsize)) == 0) { | |
2094 | if (nvsize == 0) /* end of list */ | |
2095 | break; | |
2096 | ||
2097 | /* make sure len makes sense */ | |
2098 | if (nvsize < NVP_SIZE_CALC(1, 0)) | |
2099 | return (EFAULT); | |
2100 | ||
2101 | if ((nvp = nvp_buf_alloc(nvl, nvsize)) == NULL) | |
2102 | return (ENOMEM); | |
2103 | ||
2104 | if ((err = nvs->nvs_ops->nvs_nvp_op(nvs, nvp)) != 0) { | |
2105 | nvp_buf_free(nvl, nvp); | |
2106 | return (err); | |
2107 | } | |
2108 | ||
2109 | if (i_validate_nvpair(nvp) != 0) { | |
2110 | nvpair_free(nvp); | |
2111 | nvp_buf_free(nvl, nvp); | |
2112 | return (EFAULT); | |
2113 | } | |
2114 | ||
2115 | nvp_buf_link(nvl, nvp); | |
2116 | } | |
2117 | return (err); | |
2118 | } | |
2119 | ||
2120 | static int | |
2121 | nvs_getsize_pairs(nvstream_t *nvs, nvlist_t *nvl, size_t *buflen) | |
2122 | { | |
2123 | nvpriv_t *priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv; | |
2124 | i_nvp_t *curr; | |
2125 | uint64_t nvsize = *buflen; | |
2126 | size_t size; | |
2127 | ||
2128 | /* | |
2129 | * Get encoded size of nvpairs in nvlist | |
2130 | */ | |
2131 | for (curr = priv->nvp_list; curr != NULL; curr = curr->nvi_next) { | |
2132 | if (nvs->nvs_ops->nvs_nvp_size(nvs, &curr->nvi_nvp, &size) != 0) | |
2133 | return (EINVAL); | |
2134 | ||
2135 | if ((nvsize += size) > INT32_MAX) | |
2136 | return (EINVAL); | |
2137 | } | |
2138 | ||
2139 | *buflen = nvsize; | |
2140 | return (0); | |
2141 | } | |
2142 | ||
2143 | static int | |
2144 | nvs_operation(nvstream_t *nvs, nvlist_t *nvl, size_t *buflen) | |
2145 | { | |
2146 | int err; | |
2147 | ||
2148 | if (nvl->nvl_priv == 0) | |
2149 | return (EFAULT); | |
2150 | ||
2151 | /* | |
2152 | * Perform the operation, starting with header, then each nvpair | |
2153 | */ | |
2154 | if ((err = nvs->nvs_ops->nvs_nvlist(nvs, nvl, buflen)) != 0) | |
2155 | return (err); | |
2156 | ||
2157 | switch (nvs->nvs_op) { | |
2158 | case NVS_OP_ENCODE: | |
2159 | err = nvs_encode_pairs(nvs, nvl); | |
2160 | break; | |
2161 | ||
2162 | case NVS_OP_DECODE: | |
2163 | err = nvs_decode_pairs(nvs, nvl); | |
2164 | break; | |
2165 | ||
2166 | case NVS_OP_GETSIZE: | |
2167 | err = nvs_getsize_pairs(nvs, nvl, buflen); | |
2168 | break; | |
2169 | ||
2170 | default: | |
2171 | err = EINVAL; | |
2172 | } | |
2173 | ||
2174 | return (err); | |
2175 | } | |
2176 | ||
2177 | static int | |
2178 | nvs_embedded(nvstream_t *nvs, nvlist_t *embedded) | |
2179 | { | |
2180 | switch (nvs->nvs_op) { | |
87dac73d AX |
2181 | case NVS_OP_ENCODE: { |
2182 | int err; | |
34dc7c2f | 2183 | |
87dac73d AX |
2184 | if (nvs->nvs_recursion >= nvpair_max_recursion) |
2185 | return (EINVAL); | |
2186 | nvs->nvs_recursion++; | |
2187 | err = nvs_operation(nvs, embedded, NULL); | |
2188 | nvs->nvs_recursion--; | |
2189 | return (err); | |
2190 | } | |
34dc7c2f BB |
2191 | case NVS_OP_DECODE: { |
2192 | nvpriv_t *priv; | |
2193 | int err; | |
2194 | ||
2195 | if (embedded->nvl_version != NV_VERSION) | |
2196 | return (ENOTSUP); | |
2197 | ||
2198 | if ((priv = nv_priv_alloc_embedded(nvs->nvs_priv)) == NULL) | |
2199 | return (ENOMEM); | |
2200 | ||
2201 | nvlist_init(embedded, embedded->nvl_nvflag, priv); | |
2202 | ||
87dac73d AX |
2203 | if (nvs->nvs_recursion >= nvpair_max_recursion) |
2204 | return (EINVAL); | |
2205 | nvs->nvs_recursion++; | |
34dc7c2f BB |
2206 | if ((err = nvs_operation(nvs, embedded, NULL)) != 0) |
2207 | nvlist_free(embedded); | |
87dac73d | 2208 | nvs->nvs_recursion--; |
34dc7c2f BB |
2209 | return (err); |
2210 | } | |
2211 | default: | |
2212 | break; | |
2213 | } | |
2214 | ||
2215 | return (EINVAL); | |
2216 | } | |
2217 | ||
2218 | static int | |
2219 | nvs_embedded_nvl_array(nvstream_t *nvs, nvpair_t *nvp, size_t *size) | |
2220 | { | |
2221 | size_t nelem = NVP_NELEM(nvp); | |
2222 | nvlist_t **nvlp = EMBEDDED_NVL_ARRAY(nvp); | |
2223 | int i; | |
2224 | ||
2225 | switch (nvs->nvs_op) { | |
2226 | case NVS_OP_ENCODE: | |
2227 | for (i = 0; i < nelem; i++) | |
2228 | if (nvs_embedded(nvs, nvlp[i]) != 0) | |
2229 | return (EFAULT); | |
2230 | break; | |
2231 | ||
2232 | case NVS_OP_DECODE: { | |
2233 | size_t len = nelem * sizeof (uint64_t); | |
2234 | nvlist_t *embedded = (nvlist_t *)((uintptr_t)nvlp + len); | |
2235 | ||
2236 | bzero(nvlp, len); /* don't trust packed data */ | |
2237 | for (i = 0; i < nelem; i++) { | |
2238 | if (nvs_embedded(nvs, embedded) != 0) { | |
2239 | nvpair_free(nvp); | |
2240 | return (EFAULT); | |
2241 | } | |
2242 | ||
2243 | nvlp[i] = embedded++; | |
2244 | } | |
2245 | break; | |
2246 | } | |
2247 | case NVS_OP_GETSIZE: { | |
2248 | uint64_t nvsize = 0; | |
2249 | ||
2250 | for (i = 0; i < nelem; i++) { | |
2251 | size_t nvp_sz = 0; | |
2252 | ||
2253 | if (nvs_operation(nvs, nvlp[i], &nvp_sz) != 0) | |
2254 | return (EINVAL); | |
2255 | ||
2256 | if ((nvsize += nvp_sz) > INT32_MAX) | |
2257 | return (EINVAL); | |
2258 | } | |
2259 | ||
2260 | *size = nvsize; | |
2261 | break; | |
2262 | } | |
2263 | default: | |
2264 | return (EINVAL); | |
2265 | } | |
2266 | ||
2267 | return (0); | |
2268 | } | |
2269 | ||
2270 | static int nvs_native(nvstream_t *, nvlist_t *, char *, size_t *); | |
2271 | static int nvs_xdr(nvstream_t *, nvlist_t *, char *, size_t *); | |
2272 | ||
2273 | /* | |
2274 | * Common routine for nvlist operations: | |
2275 | * encode, decode, getsize (encoded size). | |
2276 | */ | |
2277 | static int | |
2278 | nvlist_common(nvlist_t *nvl, char *buf, size_t *buflen, int encoding, | |
2279 | int nvs_op) | |
2280 | { | |
2281 | int err = 0; | |
2282 | nvstream_t nvs; | |
2283 | int nvl_endian; | |
2284 | #ifdef _LITTLE_ENDIAN | |
2285 | int host_endian = 1; | |
2286 | #else | |
2287 | int host_endian = 0; | |
2288 | #endif /* _LITTLE_ENDIAN */ | |
2289 | nvs_header_t *nvh = (void *)buf; | |
2290 | ||
2291 | if (buflen == NULL || nvl == NULL || | |
2292 | (nvs.nvs_priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) | |
2293 | return (EINVAL); | |
2294 | ||
2295 | nvs.nvs_op = nvs_op; | |
87dac73d | 2296 | nvs.nvs_recursion = 0; |
34dc7c2f BB |
2297 | |
2298 | /* | |
2299 | * For NVS_OP_ENCODE and NVS_OP_DECODE make sure an nvlist and | |
2300 | * a buffer is allocated. The first 4 bytes in the buffer are | |
2301 | * used for encoding method and host endian. | |
2302 | */ | |
2303 | switch (nvs_op) { | |
2304 | case NVS_OP_ENCODE: | |
2305 | if (buf == NULL || *buflen < sizeof (nvs_header_t)) | |
2306 | return (EINVAL); | |
2307 | ||
2308 | nvh->nvh_encoding = encoding; | |
2309 | nvh->nvh_endian = nvl_endian = host_endian; | |
2310 | nvh->nvh_reserved1 = 0; | |
2311 | nvh->nvh_reserved2 = 0; | |
2312 | break; | |
2313 | ||
2314 | case NVS_OP_DECODE: | |
2315 | if (buf == NULL || *buflen < sizeof (nvs_header_t)) | |
2316 | return (EINVAL); | |
2317 | ||
2318 | /* get method of encoding from first byte */ | |
2319 | encoding = nvh->nvh_encoding; | |
2320 | nvl_endian = nvh->nvh_endian; | |
2321 | break; | |
2322 | ||
2323 | case NVS_OP_GETSIZE: | |
2324 | nvl_endian = host_endian; | |
2325 | ||
2326 | /* | |
2327 | * add the size for encoding | |
2328 | */ | |
2329 | *buflen = sizeof (nvs_header_t); | |
2330 | break; | |
2331 | ||
2332 | default: | |
2333 | return (ENOTSUP); | |
2334 | } | |
2335 | ||
2336 | /* | |
2337 | * Create an nvstream with proper encoding method | |
2338 | */ | |
2339 | switch (encoding) { | |
2340 | case NV_ENCODE_NATIVE: | |
2341 | /* | |
2342 | * check endianness, in case we are unpacking | |
2343 | * from a file | |
2344 | */ | |
2345 | if (nvl_endian != host_endian) | |
2346 | return (ENOTSUP); | |
2347 | err = nvs_native(&nvs, nvl, buf, buflen); | |
2348 | break; | |
2349 | case NV_ENCODE_XDR: | |
2350 | err = nvs_xdr(&nvs, nvl, buf, buflen); | |
2351 | break; | |
2352 | default: | |
2353 | err = ENOTSUP; | |
2354 | break; | |
2355 | } | |
2356 | ||
2357 | return (err); | |
2358 | } | |
2359 | ||
2360 | int | |
2361 | nvlist_size(nvlist_t *nvl, size_t *size, int encoding) | |
2362 | { | |
2363 | return (nvlist_common(nvl, NULL, size, encoding, NVS_OP_GETSIZE)); | |
2364 | } | |
2365 | ||
2366 | /* | |
2367 | * Pack nvlist into contiguous memory | |
2368 | */ | |
34dc7c2f BB |
2369 | int |
2370 | nvlist_pack(nvlist_t *nvl, char **bufp, size_t *buflen, int encoding, | |
2371 | int kmflag) | |
2372 | { | |
34dc7c2f | 2373 | return (nvlist_xpack(nvl, bufp, buflen, encoding, |
a08ee875 | 2374 | nvlist_nv_alloc(kmflag))); |
34dc7c2f BB |
2375 | } |
2376 | ||
2377 | int | |
2378 | nvlist_xpack(nvlist_t *nvl, char **bufp, size_t *buflen, int encoding, | |
2379 | nv_alloc_t *nva) | |
2380 | { | |
2381 | nvpriv_t nvpriv; | |
2382 | size_t alloc_size; | |
2383 | char *buf; | |
2384 | int err; | |
2385 | ||
2386 | if (nva == NULL || nvl == NULL || bufp == NULL || buflen == NULL) | |
2387 | return (EINVAL); | |
2388 | ||
2389 | if (*bufp != NULL) | |
2390 | return (nvlist_common(nvl, *bufp, buflen, encoding, | |
2391 | NVS_OP_ENCODE)); | |
2392 | ||
2393 | /* | |
2394 | * Here is a difficult situation: | |
2395 | * 1. The nvlist has fixed allocator properties. | |
2396 | * All other nvlist routines (like nvlist_add_*, ...) use | |
2397 | * these properties. | |
cae5b340 | 2398 | * 2. When using nvlist_pack() the user can specify their own |
34dc7c2f BB |
2399 | * allocator properties (e.g. by using KM_NOSLEEP). |
2400 | * | |
2401 | * We use the user specified properties (2). A clearer solution | |
2402 | * will be to remove the kmflag from nvlist_pack(), but we will | |
2403 | * not change the interface. | |
2404 | */ | |
2405 | nv_priv_init(&nvpriv, nva, 0); | |
2406 | ||
c65aa5b2 | 2407 | if ((err = nvlist_size(nvl, &alloc_size, encoding))) |
34dc7c2f BB |
2408 | return (err); |
2409 | ||
2410 | if ((buf = nv_mem_zalloc(&nvpriv, alloc_size)) == NULL) | |
2411 | return (ENOMEM); | |
2412 | ||
2413 | if ((err = nvlist_common(nvl, buf, &alloc_size, encoding, | |
2414 | NVS_OP_ENCODE)) != 0) { | |
2415 | nv_mem_free(&nvpriv, buf, alloc_size); | |
2416 | } else { | |
2417 | *buflen = alloc_size; | |
2418 | *bufp = buf; | |
2419 | } | |
2420 | ||
2421 | return (err); | |
2422 | } | |
2423 | ||
2424 | /* | |
2425 | * Unpack buf into an nvlist_t | |
2426 | */ | |
34dc7c2f BB |
2427 | int |
2428 | nvlist_unpack(char *buf, size_t buflen, nvlist_t **nvlp, int kmflag) | |
2429 | { | |
a08ee875 | 2430 | return (nvlist_xunpack(buf, buflen, nvlp, nvlist_nv_alloc(kmflag))); |
34dc7c2f BB |
2431 | } |
2432 | ||
2433 | int | |
2434 | nvlist_xunpack(char *buf, size_t buflen, nvlist_t **nvlp, nv_alloc_t *nva) | |
2435 | { | |
2436 | nvlist_t *nvl; | |
2437 | int err; | |
2438 | ||
2439 | if (nvlp == NULL) | |
2440 | return (EINVAL); | |
2441 | ||
2442 | if ((err = nvlist_xalloc(&nvl, 0, nva)) != 0) | |
2443 | return (err); | |
2444 | ||
2445 | if ((err = nvlist_common(nvl, buf, &buflen, 0, NVS_OP_DECODE)) != 0) | |
2446 | nvlist_free(nvl); | |
2447 | else | |
2448 | *nvlp = nvl; | |
2449 | ||
2450 | return (err); | |
2451 | } | |
2452 | ||
2453 | /* | |
2454 | * Native encoding functions | |
2455 | */ | |
2456 | typedef struct { | |
2457 | /* | |
2458 | * This structure is used when decoding a packed nvpair in | |
2459 | * the native format. n_base points to a buffer containing the | |
2460 | * packed nvpair. n_end is a pointer to the end of the buffer. | |
2461 | * (n_end actually points to the first byte past the end of the | |
2462 | * buffer.) n_curr is a pointer that lies between n_base and n_end. | |
2463 | * It points to the current data that we are decoding. | |
2464 | * The amount of data left in the buffer is equal to n_end - n_curr. | |
2465 | * n_flag is used to recognize a packed embedded list. | |
2466 | */ | |
2467 | caddr_t n_base; | |
2468 | caddr_t n_end; | |
2469 | caddr_t n_curr; | |
2470 | uint_t n_flag; | |
2471 | } nvs_native_t; | |
2472 | ||
2473 | static int | |
2474 | nvs_native_create(nvstream_t *nvs, nvs_native_t *native, char *buf, | |
2475 | size_t buflen) | |
2476 | { | |
2477 | switch (nvs->nvs_op) { | |
2478 | case NVS_OP_ENCODE: | |
2479 | case NVS_OP_DECODE: | |
2480 | nvs->nvs_private = native; | |
2481 | native->n_curr = native->n_base = buf; | |
2482 | native->n_end = buf + buflen; | |
2483 | native->n_flag = 0; | |
2484 | return (0); | |
2485 | ||
2486 | case NVS_OP_GETSIZE: | |
2487 | nvs->nvs_private = native; | |
2488 | native->n_curr = native->n_base = native->n_end = NULL; | |
2489 | native->n_flag = 0; | |
2490 | return (0); | |
2491 | default: | |
2492 | return (EINVAL); | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | /*ARGSUSED*/ | |
2497 | static void | |
2498 | nvs_native_destroy(nvstream_t *nvs) | |
2499 | { | |
2500 | } | |
2501 | ||
2502 | static int | |
2503 | native_cp(nvstream_t *nvs, void *buf, size_t size) | |
2504 | { | |
2505 | nvs_native_t *native = (nvs_native_t *)nvs->nvs_private; | |
2506 | ||
2507 | if (native->n_curr + size > native->n_end) | |
2508 | return (EFAULT); | |
2509 | ||
2510 | /* | |
2511 | * The bcopy() below eliminates alignment requirement | |
2512 | * on the buffer (stream) and is preferred over direct access. | |
2513 | */ | |
2514 | switch (nvs->nvs_op) { | |
2515 | case NVS_OP_ENCODE: | |
2516 | bcopy(buf, native->n_curr, size); | |
2517 | break; | |
2518 | case NVS_OP_DECODE: | |
2519 | bcopy(native->n_curr, buf, size); | |
2520 | break; | |
2521 | default: | |
2522 | return (EINVAL); | |
2523 | } | |
2524 | ||
2525 | native->n_curr += size; | |
2526 | return (0); | |
2527 | } | |
2528 | ||
2529 | /* | |
2530 | * operate on nvlist_t header | |
2531 | */ | |
2532 | static int | |
2533 | nvs_native_nvlist(nvstream_t *nvs, nvlist_t *nvl, size_t *size) | |
2534 | { | |
2535 | nvs_native_t *native = nvs->nvs_private; | |
2536 | ||
2537 | switch (nvs->nvs_op) { | |
2538 | case NVS_OP_ENCODE: | |
2539 | case NVS_OP_DECODE: | |
2540 | if (native->n_flag) | |
2541 | return (0); /* packed embedded list */ | |
2542 | ||
2543 | native->n_flag = 1; | |
2544 | ||
2545 | /* copy version and nvflag of the nvlist_t */ | |
2546 | if (native_cp(nvs, &nvl->nvl_version, sizeof (int32_t)) != 0 || | |
2547 | native_cp(nvs, &nvl->nvl_nvflag, sizeof (int32_t)) != 0) | |
2548 | return (EFAULT); | |
2549 | ||
2550 | return (0); | |
2551 | ||
2552 | case NVS_OP_GETSIZE: | |
2553 | /* | |
2554 | * if calculate for packed embedded list | |
2555 | * 4 for end of the embedded list | |
2556 | * else | |
2557 | * 2 * sizeof (int32_t) for nvl_version and nvl_nvflag | |
2558 | * and 4 for end of the entire list | |
2559 | */ | |
2560 | if (native->n_flag) { | |
2561 | *size += 4; | |
2562 | } else { | |
2563 | native->n_flag = 1; | |
2564 | *size += 2 * sizeof (int32_t) + 4; | |
2565 | } | |
2566 | ||
2567 | return (0); | |
2568 | ||
2569 | default: | |
2570 | return (EINVAL); | |
2571 | } | |
2572 | } | |
2573 | ||
2574 | static int | |
2575 | nvs_native_nvl_fini(nvstream_t *nvs) | |
2576 | { | |
2577 | if (nvs->nvs_op == NVS_OP_ENCODE) { | |
2578 | nvs_native_t *native = (nvs_native_t *)nvs->nvs_private; | |
2579 | /* | |
2580 | * Add 4 zero bytes at end of nvlist. They are used | |
2581 | * for end detection by the decode routine. | |
2582 | */ | |
2583 | if (native->n_curr + sizeof (int) > native->n_end) | |
2584 | return (EFAULT); | |
2585 | ||
2586 | bzero(native->n_curr, sizeof (int)); | |
2587 | native->n_curr += sizeof (int); | |
2588 | } | |
2589 | ||
2590 | return (0); | |
2591 | } | |
2592 | ||
2593 | static int | |
2594 | nvpair_native_embedded(nvstream_t *nvs, nvpair_t *nvp) | |
2595 | { | |
2596 | if (nvs->nvs_op == NVS_OP_ENCODE) { | |
2597 | nvs_native_t *native = (nvs_native_t *)nvs->nvs_private; | |
2598 | nvlist_t *packed = (void *) | |
2599 | (native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp)); | |
2600 | /* | |
2601 | * Null out the pointer that is meaningless in the packed | |
2602 | * structure. The address may not be aligned, so we have | |
2603 | * to use bzero. | |
2604 | */ | |
a08ee875 LG |
2605 | bzero((char *)packed + offsetof(nvlist_t, nvl_priv), |
2606 | sizeof (uint64_t)); | |
34dc7c2f BB |
2607 | } |
2608 | ||
2609 | return (nvs_embedded(nvs, EMBEDDED_NVL(nvp))); | |
2610 | } | |
2611 | ||
2612 | static int | |
2613 | nvpair_native_embedded_array(nvstream_t *nvs, nvpair_t *nvp) | |
2614 | { | |
2615 | if (nvs->nvs_op == NVS_OP_ENCODE) { | |
2616 | nvs_native_t *native = (nvs_native_t *)nvs->nvs_private; | |
2617 | char *value = native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp); | |
2618 | size_t len = NVP_NELEM(nvp) * sizeof (uint64_t); | |
2619 | nvlist_t *packed = (nvlist_t *)((uintptr_t)value + len); | |
2620 | int i; | |
2621 | /* | |
2622 | * Null out pointers that are meaningless in the packed | |
2623 | * structure. The addresses may not be aligned, so we have | |
2624 | * to use bzero. | |
2625 | */ | |
2626 | bzero(value, len); | |
2627 | ||
2628 | for (i = 0; i < NVP_NELEM(nvp); i++, packed++) | |
2629 | /* | |
2630 | * Null out the pointer that is meaningless in the | |
2631 | * packed structure. The address may not be aligned, | |
2632 | * so we have to use bzero. | |
2633 | */ | |
a08ee875 LG |
2634 | bzero((char *)packed + offsetof(nvlist_t, nvl_priv), |
2635 | sizeof (uint64_t)); | |
34dc7c2f BB |
2636 | } |
2637 | ||
2638 | return (nvs_embedded_nvl_array(nvs, nvp, NULL)); | |
2639 | } | |
2640 | ||
2641 | static void | |
2642 | nvpair_native_string_array(nvstream_t *nvs, nvpair_t *nvp) | |
2643 | { | |
2644 | switch (nvs->nvs_op) { | |
2645 | case NVS_OP_ENCODE: { | |
2646 | nvs_native_t *native = (nvs_native_t *)nvs->nvs_private; | |
2647 | uint64_t *strp = (void *) | |
2648 | (native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp)); | |
2649 | /* | |
2650 | * Null out pointers that are meaningless in the packed | |
2651 | * structure. The addresses may not be aligned, so we have | |
2652 | * to use bzero. | |
2653 | */ | |
2654 | bzero(strp, NVP_NELEM(nvp) * sizeof (uint64_t)); | |
2655 | break; | |
2656 | } | |
2657 | case NVS_OP_DECODE: { | |
2658 | char **strp = (void *)NVP_VALUE(nvp); | |
2659 | char *buf = ((char *)strp + NVP_NELEM(nvp) * sizeof (uint64_t)); | |
2660 | int i; | |
2661 | ||
2662 | for (i = 0; i < NVP_NELEM(nvp); i++) { | |
2663 | strp[i] = buf; | |
2664 | buf += strlen(buf) + 1; | |
2665 | } | |
2666 | break; | |
2667 | } | |
2668 | } | |
2669 | } | |
2670 | ||
2671 | static int | |
2672 | nvs_native_nvp_op(nvstream_t *nvs, nvpair_t *nvp) | |
2673 | { | |
2674 | data_type_t type; | |
2675 | int value_sz; | |
2676 | int ret = 0; | |
2677 | ||
2678 | /* | |
2679 | * We do the initial bcopy of the data before we look at | |
2680 | * the nvpair type, because when we're decoding, we won't | |
2681 | * have the correct values for the pair until we do the bcopy. | |
2682 | */ | |
2683 | switch (nvs->nvs_op) { | |
2684 | case NVS_OP_ENCODE: | |
2685 | case NVS_OP_DECODE: | |
2686 | if (native_cp(nvs, nvp, nvp->nvp_size) != 0) | |
2687 | return (EFAULT); | |
2688 | break; | |
2689 | default: | |
2690 | return (EINVAL); | |
2691 | } | |
2692 | ||
2693 | /* verify nvp_name_sz, check the name string length */ | |
2694 | if (i_validate_nvpair_name(nvp) != 0) | |
2695 | return (EFAULT); | |
2696 | ||
2697 | type = NVP_TYPE(nvp); | |
2698 | ||
2699 | /* | |
2700 | * Verify type and nelem and get the value size. | |
2701 | * In case of data types DATA_TYPE_STRING and DATA_TYPE_STRING_ARRAY | |
2702 | * is the size of the string(s) excluded. | |
2703 | */ | |
2704 | if ((value_sz = i_get_value_size(type, NULL, NVP_NELEM(nvp))) < 0) | |
2705 | return (EFAULT); | |
2706 | ||
2707 | if (NVP_SIZE_CALC(nvp->nvp_name_sz, value_sz) > nvp->nvp_size) | |
2708 | return (EFAULT); | |
2709 | ||
2710 | switch (type) { | |
2711 | case DATA_TYPE_NVLIST: | |
2712 | ret = nvpair_native_embedded(nvs, nvp); | |
2713 | break; | |
2714 | case DATA_TYPE_NVLIST_ARRAY: | |
2715 | ret = nvpair_native_embedded_array(nvs, nvp); | |
2716 | break; | |
2717 | case DATA_TYPE_STRING_ARRAY: | |
2718 | nvpair_native_string_array(nvs, nvp); | |
2719 | break; | |
2720 | default: | |
2721 | break; | |
2722 | } | |
2723 | ||
2724 | return (ret); | |
2725 | } | |
2726 | ||
2727 | static int | |
2728 | nvs_native_nvp_size(nvstream_t *nvs, nvpair_t *nvp, size_t *size) | |
2729 | { | |
2730 | uint64_t nvp_sz = nvp->nvp_size; | |
2731 | ||
2732 | switch (NVP_TYPE(nvp)) { | |
2733 | case DATA_TYPE_NVLIST: { | |
2734 | size_t nvsize = 0; | |
2735 | ||
2736 | if (nvs_operation(nvs, EMBEDDED_NVL(nvp), &nvsize) != 0) | |
2737 | return (EINVAL); | |
2738 | ||
2739 | nvp_sz += nvsize; | |
2740 | break; | |
2741 | } | |
2742 | case DATA_TYPE_NVLIST_ARRAY: { | |
2743 | size_t nvsize; | |
2744 | ||
2745 | if (nvs_embedded_nvl_array(nvs, nvp, &nvsize) != 0) | |
2746 | return (EINVAL); | |
2747 | ||
2748 | nvp_sz += nvsize; | |
2749 | break; | |
2750 | } | |
2751 | default: | |
2752 | break; | |
2753 | } | |
2754 | ||
2755 | if (nvp_sz > INT32_MAX) | |
2756 | return (EINVAL); | |
2757 | ||
2758 | *size = nvp_sz; | |
2759 | ||
2760 | return (0); | |
2761 | } | |
2762 | ||
2763 | static int | |
2764 | nvs_native_nvpair(nvstream_t *nvs, nvpair_t *nvp, size_t *size) | |
2765 | { | |
2766 | switch (nvs->nvs_op) { | |
2767 | case NVS_OP_ENCODE: | |
2768 | return (nvs_native_nvp_op(nvs, nvp)); | |
2769 | ||
2770 | case NVS_OP_DECODE: { | |
2771 | nvs_native_t *native = (nvs_native_t *)nvs->nvs_private; | |
2772 | int32_t decode_len; | |
2773 | ||
2774 | /* try to read the size value from the stream */ | |
2775 | if (native->n_curr + sizeof (int32_t) > native->n_end) | |
2776 | return (EFAULT); | |
2777 | bcopy(native->n_curr, &decode_len, sizeof (int32_t)); | |
2778 | ||
2779 | /* sanity check the size value */ | |
2780 | if (decode_len < 0 || | |
2781 | decode_len > native->n_end - native->n_curr) | |
2782 | return (EFAULT); | |
2783 | ||
2784 | *size = decode_len; | |
2785 | ||
2786 | /* | |
2787 | * If at the end of the stream then move the cursor | |
2788 | * forward, otherwise nvpair_native_op() will read | |
2789 | * the entire nvpair at the same cursor position. | |
2790 | */ | |
2791 | if (*size == 0) | |
2792 | native->n_curr += sizeof (int32_t); | |
2793 | break; | |
2794 | } | |
2795 | ||
2796 | default: | |
2797 | return (EINVAL); | |
2798 | } | |
2799 | ||
2800 | return (0); | |
2801 | } | |
2802 | ||
2803 | static const nvs_ops_t nvs_native_ops = { | |
41d74433 AX |
2804 | .nvs_nvlist = nvs_native_nvlist, |
2805 | .nvs_nvpair = nvs_native_nvpair, | |
2806 | .nvs_nvp_op = nvs_native_nvp_op, | |
2807 | .nvs_nvp_size = nvs_native_nvp_size, | |
2808 | .nvs_nvl_fini = nvs_native_nvl_fini | |
34dc7c2f BB |
2809 | }; |
2810 | ||
2811 | static int | |
2812 | nvs_native(nvstream_t *nvs, nvlist_t *nvl, char *buf, size_t *buflen) | |
2813 | { | |
2814 | nvs_native_t native; | |
2815 | int err; | |
2816 | ||
2817 | nvs->nvs_ops = &nvs_native_ops; | |
2818 | ||
2819 | if ((err = nvs_native_create(nvs, &native, buf + sizeof (nvs_header_t), | |
2820 | *buflen - sizeof (nvs_header_t))) != 0) | |
2821 | return (err); | |
2822 | ||
2823 | err = nvs_operation(nvs, nvl, buflen); | |
2824 | ||
2825 | nvs_native_destroy(nvs); | |
2826 | ||
2827 | return (err); | |
2828 | } | |
2829 | ||
2830 | /* | |
2831 | * XDR encoding functions | |
2832 | * | |
2833 | * An xdr packed nvlist is encoded as: | |
2834 | * | |
2835 | * - encoding methode and host endian (4 bytes) | |
2836 | * - nvl_version (4 bytes) | |
2837 | * - nvl_nvflag (4 bytes) | |
2838 | * | |
2839 | * - encoded nvpairs, the format of one xdr encoded nvpair is: | |
2840 | * - encoded size of the nvpair (4 bytes) | |
2841 | * - decoded size of the nvpair (4 bytes) | |
2842 | * - name string, (4 + sizeof(NV_ALIGN4(string)) | |
2843 | * a string is coded as size (4 bytes) and data | |
2844 | * - data type (4 bytes) | |
2845 | * - number of elements in the nvpair (4 bytes) | |
2846 | * - data | |
2847 | * | |
2848 | * - 2 zero's for end of the entire list (8 bytes) | |
2849 | */ | |
2850 | static int | |
2851 | nvs_xdr_create(nvstream_t *nvs, XDR *xdr, char *buf, size_t buflen) | |
2852 | { | |
2853 | /* xdr data must be 4 byte aligned */ | |
2854 | if ((ulong_t)buf % 4 != 0) | |
2855 | return (EFAULT); | |
2856 | ||
2857 | switch (nvs->nvs_op) { | |
2858 | case NVS_OP_ENCODE: | |
2859 | xdrmem_create(xdr, buf, (uint_t)buflen, XDR_ENCODE); | |
2860 | nvs->nvs_private = xdr; | |
2861 | return (0); | |
2862 | case NVS_OP_DECODE: | |
2863 | xdrmem_create(xdr, buf, (uint_t)buflen, XDR_DECODE); | |
2864 | nvs->nvs_private = xdr; | |
2865 | return (0); | |
2866 | case NVS_OP_GETSIZE: | |
2867 | nvs->nvs_private = NULL; | |
2868 | return (0); | |
2869 | default: | |
2870 | return (EINVAL); | |
2871 | } | |
2872 | } | |
2873 | ||
2874 | static void | |
2875 | nvs_xdr_destroy(nvstream_t *nvs) | |
2876 | { | |
2877 | switch (nvs->nvs_op) { | |
2878 | case NVS_OP_ENCODE: | |
2879 | case NVS_OP_DECODE: | |
2880 | xdr_destroy((XDR *)nvs->nvs_private); | |
2881 | break; | |
2882 | default: | |
2883 | break; | |
2884 | } | |
2885 | } | |
2886 | ||
2887 | static int | |
2888 | nvs_xdr_nvlist(nvstream_t *nvs, nvlist_t *nvl, size_t *size) | |
2889 | { | |
2890 | switch (nvs->nvs_op) { | |
2891 | case NVS_OP_ENCODE: | |
2892 | case NVS_OP_DECODE: { | |
2893 | XDR *xdr = nvs->nvs_private; | |
2894 | ||
2895 | if (!xdr_int(xdr, &nvl->nvl_version) || | |
2896 | !xdr_u_int(xdr, &nvl->nvl_nvflag)) | |
2897 | return (EFAULT); | |
2898 | break; | |
2899 | } | |
2900 | case NVS_OP_GETSIZE: { | |
2901 | /* | |
2902 | * 2 * 4 for nvl_version + nvl_nvflag | |
2903 | * and 8 for end of the entire list | |
2904 | */ | |
2905 | *size += 2 * 4 + 8; | |
2906 | break; | |
2907 | } | |
2908 | default: | |
2909 | return (EINVAL); | |
2910 | } | |
2911 | return (0); | |
2912 | } | |
2913 | ||
2914 | static int | |
2915 | nvs_xdr_nvl_fini(nvstream_t *nvs) | |
2916 | { | |
2917 | if (nvs->nvs_op == NVS_OP_ENCODE) { | |
2918 | XDR *xdr = nvs->nvs_private; | |
2919 | int zero = 0; | |
2920 | ||
2921 | if (!xdr_int(xdr, &zero) || !xdr_int(xdr, &zero)) | |
2922 | return (EFAULT); | |
2923 | } | |
2924 | ||
2925 | return (0); | |
2926 | } | |
2927 | ||
2928 | /* | |
2929 | * The format of xdr encoded nvpair is: | |
2930 | * encode_size, decode_size, name string, data type, nelem, data | |
2931 | */ | |
2932 | static int | |
2933 | nvs_xdr_nvp_op(nvstream_t *nvs, nvpair_t *nvp) | |
2934 | { | |
2935 | data_type_t type; | |
2936 | char *buf; | |
2937 | char *buf_end = (char *)nvp + nvp->nvp_size; | |
2938 | int value_sz; | |
2939 | uint_t nelem, buflen; | |
2940 | bool_t ret = FALSE; | |
2941 | XDR *xdr = nvs->nvs_private; | |
2942 | ||
2943 | ASSERT(xdr != NULL && nvp != NULL); | |
2944 | ||
2945 | /* name string */ | |
2946 | if ((buf = NVP_NAME(nvp)) >= buf_end) | |
2947 | return (EFAULT); | |
2948 | buflen = buf_end - buf; | |
2949 | ||
2950 | if (!xdr_string(xdr, &buf, buflen - 1)) | |
2951 | return (EFAULT); | |
2952 | nvp->nvp_name_sz = strlen(buf) + 1; | |
2953 | ||
2954 | /* type and nelem */ | |
2955 | if (!xdr_int(xdr, (int *)&nvp->nvp_type) || | |
2956 | !xdr_int(xdr, &nvp->nvp_value_elem)) | |
2957 | return (EFAULT); | |
2958 | ||
2959 | type = NVP_TYPE(nvp); | |
2960 | nelem = nvp->nvp_value_elem; | |
2961 | ||
2962 | /* | |
2963 | * Verify type and nelem and get the value size. | |
2964 | * In case of data types DATA_TYPE_STRING and DATA_TYPE_STRING_ARRAY | |
2965 | * is the size of the string(s) excluded. | |
2966 | */ | |
2967 | if ((value_sz = i_get_value_size(type, NULL, nelem)) < 0) | |
2968 | return (EFAULT); | |
2969 | ||
2970 | /* if there is no data to extract then return */ | |
2971 | if (nelem == 0) | |
2972 | return (0); | |
2973 | ||
2974 | /* value */ | |
2975 | if ((buf = NVP_VALUE(nvp)) >= buf_end) | |
2976 | return (EFAULT); | |
2977 | buflen = buf_end - buf; | |
2978 | ||
2979 | if (buflen < value_sz) | |
2980 | return (EFAULT); | |
2981 | ||
2982 | switch (type) { | |
2983 | case DATA_TYPE_NVLIST: | |
2984 | if (nvs_embedded(nvs, (void *)buf) == 0) | |
2985 | return (0); | |
2986 | break; | |
2987 | ||
2988 | case DATA_TYPE_NVLIST_ARRAY: | |
2989 | if (nvs_embedded_nvl_array(nvs, nvp, NULL) == 0) | |
2990 | return (0); | |
2991 | break; | |
2992 | ||
2993 | case DATA_TYPE_BOOLEAN: | |
2994 | ret = TRUE; | |
2995 | break; | |
2996 | ||
2997 | case DATA_TYPE_BYTE: | |
2998 | case DATA_TYPE_INT8: | |
2999 | case DATA_TYPE_UINT8: | |
3000 | ret = xdr_char(xdr, buf); | |
3001 | break; | |
3002 | ||
3003 | case DATA_TYPE_INT16: | |
3004 | ret = xdr_short(xdr, (void *)buf); | |
3005 | break; | |
3006 | ||
3007 | case DATA_TYPE_UINT16: | |
3008 | ret = xdr_u_short(xdr, (void *)buf); | |
3009 | break; | |
3010 | ||
3011 | case DATA_TYPE_BOOLEAN_VALUE: | |
3012 | case DATA_TYPE_INT32: | |
3013 | ret = xdr_int(xdr, (void *)buf); | |
3014 | break; | |
3015 | ||
3016 | case DATA_TYPE_UINT32: | |
3017 | ret = xdr_u_int(xdr, (void *)buf); | |
3018 | break; | |
3019 | ||
3020 | case DATA_TYPE_INT64: | |
3021 | ret = xdr_longlong_t(xdr, (void *)buf); | |
3022 | break; | |
3023 | ||
3024 | case DATA_TYPE_UINT64: | |
3025 | ret = xdr_u_longlong_t(xdr, (void *)buf); | |
3026 | break; | |
3027 | ||
3028 | case DATA_TYPE_HRTIME: | |
3029 | /* | |
3030 | * NOTE: must expose the definition of hrtime_t here | |
3031 | */ | |
3032 | ret = xdr_longlong_t(xdr, (void *)buf); | |
3033 | break; | |
b128c09f BB |
3034 | #if !defined(_KERNEL) |
3035 | case DATA_TYPE_DOUBLE: | |
3036 | ret = xdr_double(xdr, (void *)buf); | |
3037 | break; | |
3038 | #endif | |
34dc7c2f BB |
3039 | case DATA_TYPE_STRING: |
3040 | ret = xdr_string(xdr, &buf, buflen - 1); | |
3041 | break; | |
3042 | ||
3043 | case DATA_TYPE_BYTE_ARRAY: | |
3044 | ret = xdr_opaque(xdr, buf, nelem); | |
3045 | break; | |
3046 | ||
3047 | case DATA_TYPE_INT8_ARRAY: | |
3048 | case DATA_TYPE_UINT8_ARRAY: | |
3049 | ret = xdr_array(xdr, &buf, &nelem, buflen, sizeof (int8_t), | |
3050 | (xdrproc_t)xdr_char); | |
3051 | break; | |
3052 | ||
3053 | case DATA_TYPE_INT16_ARRAY: | |
3054 | ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (int16_t), | |
3055 | sizeof (int16_t), (xdrproc_t)xdr_short); | |
3056 | break; | |
3057 | ||
3058 | case DATA_TYPE_UINT16_ARRAY: | |
3059 | ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (uint16_t), | |
3060 | sizeof (uint16_t), (xdrproc_t)xdr_u_short); | |
3061 | break; | |
3062 | ||
3063 | case DATA_TYPE_BOOLEAN_ARRAY: | |
3064 | case DATA_TYPE_INT32_ARRAY: | |
3065 | ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (int32_t), | |
3066 | sizeof (int32_t), (xdrproc_t)xdr_int); | |
3067 | break; | |
3068 | ||
3069 | case DATA_TYPE_UINT32_ARRAY: | |
3070 | ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (uint32_t), | |
3071 | sizeof (uint32_t), (xdrproc_t)xdr_u_int); | |
3072 | break; | |
3073 | ||
3074 | case DATA_TYPE_INT64_ARRAY: | |
3075 | ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (int64_t), | |
3076 | sizeof (int64_t), (xdrproc_t)xdr_longlong_t); | |
3077 | break; | |
3078 | ||
3079 | case DATA_TYPE_UINT64_ARRAY: | |
3080 | ret = xdr_array(xdr, &buf, &nelem, buflen / sizeof (uint64_t), | |
3081 | sizeof (uint64_t), (xdrproc_t)xdr_u_longlong_t); | |
3082 | break; | |
3083 | ||
3084 | case DATA_TYPE_STRING_ARRAY: { | |
3085 | size_t len = nelem * sizeof (uint64_t); | |
3086 | char **strp = (void *)buf; | |
3087 | int i; | |
3088 | ||
3089 | if (nvs->nvs_op == NVS_OP_DECODE) | |
3090 | bzero(buf, len); /* don't trust packed data */ | |
3091 | ||
3092 | for (i = 0; i < nelem; i++) { | |
3093 | if (buflen <= len) | |
3094 | return (EFAULT); | |
3095 | ||
3096 | buf += len; | |
3097 | buflen -= len; | |
3098 | ||
3099 | if (xdr_string(xdr, &buf, buflen - 1) != TRUE) | |
3100 | return (EFAULT); | |
3101 | ||
3102 | if (nvs->nvs_op == NVS_OP_DECODE) | |
3103 | strp[i] = buf; | |
3104 | len = strlen(buf) + 1; | |
3105 | } | |
3106 | ret = TRUE; | |
3107 | break; | |
3108 | } | |
3109 | default: | |
3110 | break; | |
3111 | } | |
3112 | ||
3113 | return (ret == TRUE ? 0 : EFAULT); | |
3114 | } | |
3115 | ||
3116 | static int | |
3117 | nvs_xdr_nvp_size(nvstream_t *nvs, nvpair_t *nvp, size_t *size) | |
3118 | { | |
3119 | data_type_t type = NVP_TYPE(nvp); | |
3120 | /* | |
3121 | * encode_size + decode_size + name string size + data type + nelem | |
3122 | * where name string size = 4 + NV_ALIGN4(strlen(NVP_NAME(nvp))) | |
3123 | */ | |
3124 | uint64_t nvp_sz = 4 + 4 + 4 + NV_ALIGN4(strlen(NVP_NAME(nvp))) + 4 + 4; | |
3125 | ||
3126 | switch (type) { | |
3127 | case DATA_TYPE_BOOLEAN: | |
3128 | break; | |
3129 | ||
3130 | case DATA_TYPE_BOOLEAN_VALUE: | |
3131 | case DATA_TYPE_BYTE: | |
3132 | case DATA_TYPE_INT8: | |
3133 | case DATA_TYPE_UINT8: | |
3134 | case DATA_TYPE_INT16: | |
3135 | case DATA_TYPE_UINT16: | |
3136 | case DATA_TYPE_INT32: | |
3137 | case DATA_TYPE_UINT32: | |
3138 | nvp_sz += 4; /* 4 is the minimum xdr unit */ | |
3139 | break; | |
3140 | ||
3141 | case DATA_TYPE_INT64: | |
3142 | case DATA_TYPE_UINT64: | |
3143 | case DATA_TYPE_HRTIME: | |
b128c09f BB |
3144 | #if !defined(_KERNEL) |
3145 | case DATA_TYPE_DOUBLE: | |
3146 | #endif | |
34dc7c2f BB |
3147 | nvp_sz += 8; |
3148 | break; | |
3149 | ||
3150 | case DATA_TYPE_STRING: | |
3151 | nvp_sz += 4 + NV_ALIGN4(strlen((char *)NVP_VALUE(nvp))); | |
3152 | break; | |
3153 | ||
3154 | case DATA_TYPE_BYTE_ARRAY: | |
3155 | nvp_sz += NV_ALIGN4(NVP_NELEM(nvp)); | |
3156 | break; | |
3157 | ||
3158 | case DATA_TYPE_BOOLEAN_ARRAY: | |
3159 | case DATA_TYPE_INT8_ARRAY: | |
3160 | case DATA_TYPE_UINT8_ARRAY: | |
3161 | case DATA_TYPE_INT16_ARRAY: | |
3162 | case DATA_TYPE_UINT16_ARRAY: | |
3163 | case DATA_TYPE_INT32_ARRAY: | |
3164 | case DATA_TYPE_UINT32_ARRAY: | |
3165 | nvp_sz += 4 + 4 * (uint64_t)NVP_NELEM(nvp); | |
3166 | break; | |
3167 | ||
3168 | case DATA_TYPE_INT64_ARRAY: | |
3169 | case DATA_TYPE_UINT64_ARRAY: | |
3170 | nvp_sz += 4 + 8 * (uint64_t)NVP_NELEM(nvp); | |
3171 | break; | |
3172 | ||
3173 | case DATA_TYPE_STRING_ARRAY: { | |
3174 | int i; | |
3175 | char **strs = (void *)NVP_VALUE(nvp); | |
3176 | ||
3177 | for (i = 0; i < NVP_NELEM(nvp); i++) | |
3178 | nvp_sz += 4 + NV_ALIGN4(strlen(strs[i])); | |
3179 | ||
3180 | break; | |
3181 | } | |
3182 | ||
3183 | case DATA_TYPE_NVLIST: | |
3184 | case DATA_TYPE_NVLIST_ARRAY: { | |
3185 | size_t nvsize = 0; | |
3186 | int old_nvs_op = nvs->nvs_op; | |
3187 | int err; | |
3188 | ||
3189 | nvs->nvs_op = NVS_OP_GETSIZE; | |
3190 | if (type == DATA_TYPE_NVLIST) | |
3191 | err = nvs_operation(nvs, EMBEDDED_NVL(nvp), &nvsize); | |
3192 | else | |
3193 | err = nvs_embedded_nvl_array(nvs, nvp, &nvsize); | |
3194 | nvs->nvs_op = old_nvs_op; | |
3195 | ||
3196 | if (err != 0) | |
3197 | return (EINVAL); | |
3198 | ||
3199 | nvp_sz += nvsize; | |
3200 | break; | |
3201 | } | |
3202 | ||
3203 | default: | |
3204 | return (EINVAL); | |
3205 | } | |
3206 | ||
3207 | if (nvp_sz > INT32_MAX) | |
3208 | return (EINVAL); | |
3209 | ||
3210 | *size = nvp_sz; | |
3211 | ||
3212 | return (0); | |
3213 | } | |
3214 | ||
3215 | ||
3216 | /* | |
3217 | * The NVS_XDR_MAX_LEN macro takes a packed xdr buffer of size x and estimates | |
3218 | * the largest nvpair that could be encoded in the buffer. | |
3219 | * | |
3220 | * See comments above nvpair_xdr_op() for the format of xdr encoding. | |
3221 | * The size of a xdr packed nvpair without any data is 5 words. | |
3222 | * | |
3223 | * Using the size of the data directly as an estimate would be ok | |
3224 | * in all cases except one. If the data type is of DATA_TYPE_STRING_ARRAY | |
3225 | * then the actual nvpair has space for an array of pointers to index | |
3226 | * the strings. These pointers are not encoded into the packed xdr buffer. | |
3227 | * | |
3228 | * If the data is of type DATA_TYPE_STRING_ARRAY and all the strings are | |
3229 | * of length 0, then each string is endcoded in xdr format as a single word. | |
3230 | * Therefore when expanded to an nvpair there will be 2.25 word used for | |
3231 | * each string. (a int64_t allocated for pointer usage, and a single char | |
3232 | * for the null termination.) | |
3233 | * | |
3234 | * This is the calculation performed by the NVS_XDR_MAX_LEN macro. | |
3235 | */ | |
3236 | #define NVS_XDR_HDR_LEN ((size_t)(5 * 4)) | |
3237 | #define NVS_XDR_DATA_LEN(y) (((size_t)(y) <= NVS_XDR_HDR_LEN) ? \ | |
3238 | 0 : ((size_t)(y) - NVS_XDR_HDR_LEN)) | |
3239 | #define NVS_XDR_MAX_LEN(x) (NVP_SIZE_CALC(1, 0) + \ | |
3240 | (NVS_XDR_DATA_LEN(x) * 2) + \ | |
3241 | NV_ALIGN4((NVS_XDR_DATA_LEN(x) / 4))) | |
3242 | ||
3243 | static int | |
3244 | nvs_xdr_nvpair(nvstream_t *nvs, nvpair_t *nvp, size_t *size) | |
3245 | { | |
3246 | XDR *xdr = nvs->nvs_private; | |
3247 | int32_t encode_len, decode_len; | |
3248 | ||
3249 | switch (nvs->nvs_op) { | |
3250 | case NVS_OP_ENCODE: { | |
3251 | size_t nvsize; | |
3252 | ||
3253 | if (nvs_xdr_nvp_size(nvs, nvp, &nvsize) != 0) | |
3254 | return (EFAULT); | |
3255 | ||
3256 | decode_len = nvp->nvp_size; | |
3257 | encode_len = nvsize; | |
3258 | if (!xdr_int(xdr, &encode_len) || !xdr_int(xdr, &decode_len)) | |
3259 | return (EFAULT); | |
3260 | ||
3261 | return (nvs_xdr_nvp_op(nvs, nvp)); | |
3262 | } | |
3263 | case NVS_OP_DECODE: { | |
3264 | struct xdr_bytesrec bytesrec; | |
3265 | ||
3266 | /* get the encode and decode size */ | |
3267 | if (!xdr_int(xdr, &encode_len) || !xdr_int(xdr, &decode_len)) | |
3268 | return (EFAULT); | |
3269 | *size = decode_len; | |
3270 | ||
3271 | /* are we at the end of the stream? */ | |
3272 | if (*size == 0) | |
3273 | return (0); | |
3274 | ||
3275 | /* sanity check the size parameter */ | |
3276 | if (!xdr_control(xdr, XDR_GET_BYTES_AVAIL, &bytesrec)) | |
3277 | return (EFAULT); | |
3278 | ||
3279 | if (*size > NVS_XDR_MAX_LEN(bytesrec.xc_num_avail)) | |
3280 | return (EFAULT); | |
3281 | break; | |
3282 | } | |
3283 | ||
3284 | default: | |
3285 | return (EINVAL); | |
3286 | } | |
3287 | return (0); | |
3288 | } | |
3289 | ||
3290 | static const struct nvs_ops nvs_xdr_ops = { | |
41d74433 AX |
3291 | .nvs_nvlist = nvs_xdr_nvlist, |
3292 | .nvs_nvpair = nvs_xdr_nvpair, | |
3293 | .nvs_nvp_op = nvs_xdr_nvp_op, | |
3294 | .nvs_nvp_size = nvs_xdr_nvp_size, | |
3295 | .nvs_nvl_fini = nvs_xdr_nvl_fini | |
34dc7c2f BB |
3296 | }; |
3297 | ||
3298 | static int | |
3299 | nvs_xdr(nvstream_t *nvs, nvlist_t *nvl, char *buf, size_t *buflen) | |
3300 | { | |
3301 | XDR xdr; | |
3302 | int err; | |
3303 | ||
3304 | nvs->nvs_ops = &nvs_xdr_ops; | |
3305 | ||
3306 | if ((err = nvs_xdr_create(nvs, &xdr, buf + sizeof (nvs_header_t), | |
3307 | *buflen - sizeof (nvs_header_t))) != 0) | |
3308 | return (err); | |
3309 | ||
3310 | err = nvs_operation(nvs, nvl, buflen); | |
3311 | ||
3312 | nvs_xdr_destroy(nvs); | |
3313 | ||
3314 | return (err); | |
3315 | } | |
c28b2279 BB |
3316 | |
3317 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
ea04106b AX |
3318 | static int __init |
3319 | nvpair_init(void) | |
3320 | { | |
3321 | return (0); | |
3322 | } | |
c28b2279 | 3323 | |
ea04106b AX |
3324 | static void __exit |
3325 | nvpair_fini(void) | |
3326 | { | |
3327 | } | |
c28b2279 | 3328 | |
ea04106b AX |
3329 | module_init(nvpair_init); |
3330 | module_exit(nvpair_fini); | |
c28b2279 BB |
3331 | |
3332 | MODULE_DESCRIPTION("Generic name/value pair implementation"); | |
3333 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
3334 | MODULE_LICENSE(ZFS_META_LICENSE); | |
a08ee875 | 3335 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
c28b2279 BB |
3336 | |
3337 | EXPORT_SYMBOL(nv_alloc_init); | |
3338 | EXPORT_SYMBOL(nv_alloc_reset); | |
3339 | EXPORT_SYMBOL(nv_alloc_fini); | |
3340 | ||
3341 | /* list management */ | |
3342 | EXPORT_SYMBOL(nvlist_alloc); | |
3343 | EXPORT_SYMBOL(nvlist_free); | |
3344 | EXPORT_SYMBOL(nvlist_size); | |
3345 | EXPORT_SYMBOL(nvlist_pack); | |
3346 | EXPORT_SYMBOL(nvlist_unpack); | |
3347 | EXPORT_SYMBOL(nvlist_dup); | |
3348 | EXPORT_SYMBOL(nvlist_merge); | |
3349 | ||
3350 | EXPORT_SYMBOL(nvlist_xalloc); | |
3351 | EXPORT_SYMBOL(nvlist_xpack); | |
3352 | EXPORT_SYMBOL(nvlist_xunpack); | |
3353 | EXPORT_SYMBOL(nvlist_xdup); | |
3354 | EXPORT_SYMBOL(nvlist_lookup_nv_alloc); | |
3355 | ||
3356 | EXPORT_SYMBOL(nvlist_add_nvpair); | |
3357 | EXPORT_SYMBOL(nvlist_add_boolean); | |
3358 | EXPORT_SYMBOL(nvlist_add_boolean_value); | |
3359 | EXPORT_SYMBOL(nvlist_add_byte); | |
3360 | EXPORT_SYMBOL(nvlist_add_int8); | |
3361 | EXPORT_SYMBOL(nvlist_add_uint8); | |
3362 | EXPORT_SYMBOL(nvlist_add_int16); | |
3363 | EXPORT_SYMBOL(nvlist_add_uint16); | |
3364 | EXPORT_SYMBOL(nvlist_add_int32); | |
3365 | EXPORT_SYMBOL(nvlist_add_uint32); | |
3366 | EXPORT_SYMBOL(nvlist_add_int64); | |
3367 | EXPORT_SYMBOL(nvlist_add_uint64); | |
3368 | EXPORT_SYMBOL(nvlist_add_string); | |
3369 | EXPORT_SYMBOL(nvlist_add_nvlist); | |
3370 | EXPORT_SYMBOL(nvlist_add_boolean_array); | |
3371 | EXPORT_SYMBOL(nvlist_add_byte_array); | |
3372 | EXPORT_SYMBOL(nvlist_add_int8_array); | |
3373 | EXPORT_SYMBOL(nvlist_add_uint8_array); | |
3374 | EXPORT_SYMBOL(nvlist_add_int16_array); | |
3375 | EXPORT_SYMBOL(nvlist_add_uint16_array); | |
3376 | EXPORT_SYMBOL(nvlist_add_int32_array); | |
3377 | EXPORT_SYMBOL(nvlist_add_uint32_array); | |
3378 | EXPORT_SYMBOL(nvlist_add_int64_array); | |
3379 | EXPORT_SYMBOL(nvlist_add_uint64_array); | |
3380 | EXPORT_SYMBOL(nvlist_add_string_array); | |
3381 | EXPORT_SYMBOL(nvlist_add_nvlist_array); | |
3382 | EXPORT_SYMBOL(nvlist_next_nvpair); | |
3383 | EXPORT_SYMBOL(nvlist_prev_nvpair); | |
3384 | EXPORT_SYMBOL(nvlist_empty); | |
3385 | EXPORT_SYMBOL(nvlist_add_hrtime); | |
3386 | ||
3387 | EXPORT_SYMBOL(nvlist_remove); | |
3388 | EXPORT_SYMBOL(nvlist_remove_nvpair); | |
3389 | EXPORT_SYMBOL(nvlist_remove_all); | |
3390 | ||
3391 | EXPORT_SYMBOL(nvlist_lookup_boolean); | |
3392 | EXPORT_SYMBOL(nvlist_lookup_boolean_value); | |
3393 | EXPORT_SYMBOL(nvlist_lookup_byte); | |
3394 | EXPORT_SYMBOL(nvlist_lookup_int8); | |
3395 | EXPORT_SYMBOL(nvlist_lookup_uint8); | |
3396 | EXPORT_SYMBOL(nvlist_lookup_int16); | |
3397 | EXPORT_SYMBOL(nvlist_lookup_uint16); | |
3398 | EXPORT_SYMBOL(nvlist_lookup_int32); | |
3399 | EXPORT_SYMBOL(nvlist_lookup_uint32); | |
3400 | EXPORT_SYMBOL(nvlist_lookup_int64); | |
3401 | EXPORT_SYMBOL(nvlist_lookup_uint64); | |
3402 | EXPORT_SYMBOL(nvlist_lookup_string); | |
3403 | EXPORT_SYMBOL(nvlist_lookup_nvlist); | |
3404 | EXPORT_SYMBOL(nvlist_lookup_boolean_array); | |
3405 | EXPORT_SYMBOL(nvlist_lookup_byte_array); | |
3406 | EXPORT_SYMBOL(nvlist_lookup_int8_array); | |
3407 | EXPORT_SYMBOL(nvlist_lookup_uint8_array); | |
3408 | EXPORT_SYMBOL(nvlist_lookup_int16_array); | |
3409 | EXPORT_SYMBOL(nvlist_lookup_uint16_array); | |
3410 | EXPORT_SYMBOL(nvlist_lookup_int32_array); | |
3411 | EXPORT_SYMBOL(nvlist_lookup_uint32_array); | |
3412 | EXPORT_SYMBOL(nvlist_lookup_int64_array); | |
3413 | EXPORT_SYMBOL(nvlist_lookup_uint64_array); | |
3414 | EXPORT_SYMBOL(nvlist_lookup_string_array); | |
3415 | EXPORT_SYMBOL(nvlist_lookup_nvlist_array); | |
3416 | EXPORT_SYMBOL(nvlist_lookup_hrtime); | |
3417 | EXPORT_SYMBOL(nvlist_lookup_pairs); | |
3418 | ||
3419 | EXPORT_SYMBOL(nvlist_lookup_nvpair); | |
3420 | EXPORT_SYMBOL(nvlist_exists); | |
3421 | ||
3422 | /* processing nvpair */ | |
3423 | EXPORT_SYMBOL(nvpair_name); | |
3424 | EXPORT_SYMBOL(nvpair_type); | |
3425 | EXPORT_SYMBOL(nvpair_value_boolean_value); | |
3426 | EXPORT_SYMBOL(nvpair_value_byte); | |
3427 | EXPORT_SYMBOL(nvpair_value_int8); | |
3428 | EXPORT_SYMBOL(nvpair_value_uint8); | |
3429 | EXPORT_SYMBOL(nvpair_value_int16); | |
3430 | EXPORT_SYMBOL(nvpair_value_uint16); | |
3431 | EXPORT_SYMBOL(nvpair_value_int32); | |
3432 | EXPORT_SYMBOL(nvpair_value_uint32); | |
3433 | EXPORT_SYMBOL(nvpair_value_int64); | |
3434 | EXPORT_SYMBOL(nvpair_value_uint64); | |
3435 | EXPORT_SYMBOL(nvpair_value_string); | |
3436 | EXPORT_SYMBOL(nvpair_value_nvlist); | |
3437 | EXPORT_SYMBOL(nvpair_value_boolean_array); | |
3438 | EXPORT_SYMBOL(nvpair_value_byte_array); | |
3439 | EXPORT_SYMBOL(nvpair_value_int8_array); | |
3440 | EXPORT_SYMBOL(nvpair_value_uint8_array); | |
3441 | EXPORT_SYMBOL(nvpair_value_int16_array); | |
3442 | EXPORT_SYMBOL(nvpair_value_uint16_array); | |
3443 | EXPORT_SYMBOL(nvpair_value_int32_array); | |
3444 | EXPORT_SYMBOL(nvpair_value_uint32_array); | |
3445 | EXPORT_SYMBOL(nvpair_value_int64_array); | |
3446 | EXPORT_SYMBOL(nvpair_value_uint64_array); | |
3447 | EXPORT_SYMBOL(nvpair_value_string_array); | |
3448 | EXPORT_SYMBOL(nvpair_value_nvlist_array); | |
3449 | EXPORT_SYMBOL(nvpair_value_hrtime); | |
3450 | ||
3451 | #endif |