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Reduce ZIO io_lock contention on sorted scrub
[zfs.git] / lib / libnvpair / libnvpair.c
blob0123bb772048e6a02145200593f19a148a582a25
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 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2012 by Delphix. All rights reserved.
24 */
25
26 #include <unistd.h>
27 #include <string.h>
28 #include <libintl.h>
29 #include <sys/types.h>
30 #include <sys/inttypes.h>
31 #include <stdarg.h>
32 #include "libnvpair.h"
33
34 /*
35 * libnvpair - A tools library for manipulating <name, value> pairs.
36 *
37 * This library provides routines packing an unpacking nv pairs
38 * for transporting data across process boundaries, transporting
39 * between kernel and userland, and possibly saving onto disk files.
40 */
41
42 /*
43 * Print control structure.
44 */
45
46 #define DEFINEOP(opname, vtype) \
47 struct { \
48 int (*op)(struct nvlist_prtctl *, void *, nvlist_t *, \
49 const char *, vtype); \
50 void *arg; \
51 } opname
52
53 #define DEFINEARROP(opname, vtype) \
54 struct { \
55 int (*op)(struct nvlist_prtctl *, void *, nvlist_t *, \
56 const char *, vtype, uint_t); \
57 void *arg; \
58 } opname
59
60 struct nvlist_printops {
61 DEFINEOP(print_boolean, int);
62 DEFINEOP(print_boolean_value, boolean_t);
63 DEFINEOP(print_byte, uchar_t);
64 DEFINEOP(print_int8, int8_t);
65 DEFINEOP(print_uint8, uint8_t);
66 DEFINEOP(print_int16, int16_t);
67 DEFINEOP(print_uint16, uint16_t);
68 DEFINEOP(print_int32, int32_t);
69 DEFINEOP(print_uint32, uint32_t);
70 DEFINEOP(print_int64, int64_t);
71 DEFINEOP(print_uint64, uint64_t);
72 DEFINEOP(print_double, double);
73 DEFINEOP(print_string, char *);
74 DEFINEOP(print_hrtime, hrtime_t);
75 DEFINEOP(print_nvlist, nvlist_t *);
76 DEFINEARROP(print_boolean_array, boolean_t *);
77 DEFINEARROP(print_byte_array, uchar_t *);
78 DEFINEARROP(print_int8_array, int8_t *);
79 DEFINEARROP(print_uint8_array, uint8_t *);
80 DEFINEARROP(print_int16_array, int16_t *);
81 DEFINEARROP(print_uint16_array, uint16_t *);
82 DEFINEARROP(print_int32_array, int32_t *);
83 DEFINEARROP(print_uint32_array, uint32_t *);
84 DEFINEARROP(print_int64_array, int64_t *);
85 DEFINEARROP(print_uint64_array, uint64_t *);
86 DEFINEARROP(print_string_array, char **);
87 DEFINEARROP(print_nvlist_array, nvlist_t **);
88 };
89
90 struct nvlist_prtctl {
91 FILE *nvprt_fp; /* output destination */
92 enum nvlist_indent_mode nvprt_indent_mode; /* see above */
93 int nvprt_indent; /* absolute indent, or tab depth */
94 int nvprt_indentinc; /* indent or tab increment */
95 const char *nvprt_nmfmt; /* member name format, max one %s */
96 const char *nvprt_eomfmt; /* after member format, e.g. "\n" */
97 const char *nvprt_btwnarrfmt; /* between array members */
98 int nvprt_btwnarrfmt_nl; /* nvprt_eoamfmt includes newline? */
99 struct nvlist_printops *nvprt_dfltops;
100 struct nvlist_printops *nvprt_custops;
101 };
102
103 #define DFLTPRTOP(pctl, type) \
104 ((pctl)->nvprt_dfltops->print_##type.op)
105
106 #define DFLTPRTOPARG(pctl, type) \
107 ((pctl)->nvprt_dfltops->print_##type.arg)
108
109 #define CUSTPRTOP(pctl, type) \
110 ((pctl)->nvprt_custops->print_##type.op)
111
112 #define CUSTPRTOPARG(pctl, type) \
113 ((pctl)->nvprt_custops->print_##type.arg)
114
115 #define RENDER(pctl, type, nvl, name, val) \
116 { \
117 int done = 0; \
118 if ((pctl)->nvprt_custops && CUSTPRTOP(pctl, type)) { \
119 done = CUSTPRTOP(pctl, type)(pctl, \
120 CUSTPRTOPARG(pctl, type), nvl, name, val); \
121 } \
122 if (!done) { \
123 (void) DFLTPRTOP(pctl, type)(pctl, \
124 DFLTPRTOPARG(pctl, type), nvl, name, val); \
125 } \
126 (void) fprintf(pctl->nvprt_fp, "%s", pctl->nvprt_eomfmt); \
127 }
128
129 #define ARENDER(pctl, type, nvl, name, arrp, count) \
130 { \
131 int done = 0; \
132 if ((pctl)->nvprt_custops && CUSTPRTOP(pctl, type)) { \
133 done = CUSTPRTOP(pctl, type)(pctl, \
134 CUSTPRTOPARG(pctl, type), nvl, name, arrp, count); \
135 } \
136 if (!done) { \
137 (void) DFLTPRTOP(pctl, type)(pctl, \
138 DFLTPRTOPARG(pctl, type), nvl, name, arrp, count); \
139 } \
140 (void) fprintf(pctl->nvprt_fp, "%s", pctl->nvprt_eomfmt); \
141 }
142
143 static void nvlist_print_with_indent(nvlist_t *, nvlist_prtctl_t);
144
145 /*
146 * ======================================================================
147 * | |
148 * | Indentation |
149 * | |
150 * ======================================================================
151 */
152
153 static void
154 indent(nvlist_prtctl_t pctl, int onemore)
155 {
156 int depth;
157
158 switch (pctl->nvprt_indent_mode) {
159 case NVLIST_INDENT_ABS:
160 (void) fprintf(pctl->nvprt_fp, "%*s",
161 pctl->nvprt_indent + onemore * pctl->nvprt_indentinc, "");
162 break;
163
164 case NVLIST_INDENT_TABBED:
165 depth = pctl->nvprt_indent + onemore;
166 while (depth-- > 0)
167 (void) fprintf(pctl->nvprt_fp, "\t");
168 }
169 }
170
171 /*
172 * ======================================================================
173 * | |
174 * | Default nvlist member rendering functions. |
175 * | |
176 * ======================================================================
177 */
178
179 /*
180 * Generate functions to print single-valued nvlist members.
181 *
182 * type_and_variant - suffix to form function name
183 * vtype - C type for the member value
184 * ptype - C type to cast value to for printing
185 * vfmt - format string for pair value, e.g "%d" or "0x%llx"
186 */
187
188 #define NVLIST_PRTFUNC(type_and_variant, vtype, ptype, vfmt) \
189 static int \
190 nvprint_##type_and_variant(nvlist_prtctl_t pctl, void *private, \
191 nvlist_t *nvl, const char *name, vtype value) \
192 { \
193 (void) private; \
194 (void) nvl; \
195 FILE *fp = pctl->nvprt_fp; \
196 indent(pctl, 1); \
197 (void) fprintf(fp, pctl->nvprt_nmfmt, name); \
198 (void) fprintf(fp, vfmt, (ptype)value); \
199 return (1); \
200 }
201
202 NVLIST_PRTFUNC(boolean, int, int, "%d")
203 NVLIST_PRTFUNC(boolean_value, boolean_t, int, "%d")
204 NVLIST_PRTFUNC(byte, uchar_t, uchar_t, "0x%2.2x")
205 NVLIST_PRTFUNC(int8, int8_t, int, "%d")
206 NVLIST_PRTFUNC(uint8, uint8_t, uint8_t, "0x%x")
207 NVLIST_PRTFUNC(int16, int16_t, int16_t, "%d")
208 NVLIST_PRTFUNC(uint16, uint16_t, uint16_t, "0x%x")
209 NVLIST_PRTFUNC(int32, int32_t, int32_t, "%d")
210 NVLIST_PRTFUNC(uint32, uint32_t, uint32_t, "0x%x")
211 NVLIST_PRTFUNC(int64, int64_t, longlong_t, "%lld")
212 NVLIST_PRTFUNC(uint64, uint64_t, u_longlong_t, "0x%llx")
213 NVLIST_PRTFUNC(double, double, double, "0x%f")
214 NVLIST_PRTFUNC(string, char *, char *, "%s")
215 NVLIST_PRTFUNC(hrtime, hrtime_t, hrtime_t, "0x%llx")
216
217 /*
218 * Generate functions to print array-valued nvlist members.
219 */
220
221 #define NVLIST_ARRPRTFUNC(type_and_variant, vtype, ptype, vfmt) \
222 static int \
223 nvaprint_##type_and_variant(nvlist_prtctl_t pctl, void *private, \
224 nvlist_t *nvl, const char *name, vtype *valuep, uint_t count) \
225 { \
226 (void) private; \
227 (void) nvl; \
228 FILE *fp = pctl->nvprt_fp; \
229 uint_t i; \
230 for (i = 0; i < count; i++) { \
231 if (i == 0 || pctl->nvprt_btwnarrfmt_nl) { \
232 indent(pctl, 1); \
233 (void) fprintf(fp, pctl->nvprt_nmfmt, name); \
234 if (pctl->nvprt_btwnarrfmt_nl) \
235 (void) fprintf(fp, "[%d]: ", i); \
236 } \
237 if (i != 0) \
238 (void) fprintf(fp, "%s", pctl->nvprt_btwnarrfmt); \
239 (void) fprintf(fp, vfmt, (ptype)valuep[i]); \
240 } \
241 return (1); \
242 }
243
244 NVLIST_ARRPRTFUNC(boolean_array, boolean_t, boolean_t, "%d")
245 NVLIST_ARRPRTFUNC(byte_array, uchar_t, uchar_t, "0x%2.2x")
246 NVLIST_ARRPRTFUNC(int8_array, int8_t, int8_t, "%d")
247 NVLIST_ARRPRTFUNC(uint8_array, uint8_t, uint8_t, "0x%x")
248 NVLIST_ARRPRTFUNC(int16_array, int16_t, int16_t, "%d")
249 NVLIST_ARRPRTFUNC(uint16_array, uint16_t, uint16_t, "0x%x")
250 NVLIST_ARRPRTFUNC(int32_array, int32_t, int32_t, "%d")
251 NVLIST_ARRPRTFUNC(uint32_array, uint32_t, uint32_t, "0x%x")
252 NVLIST_ARRPRTFUNC(int64_array, int64_t, longlong_t, "%lld")
253 NVLIST_ARRPRTFUNC(uint64_array, uint64_t, u_longlong_t, "0x%llx")
254 NVLIST_ARRPRTFUNC(string_array, char *, char *, "%s")
255
256 static int
257 nvprint_nvlist(nvlist_prtctl_t pctl, void *private,
258 nvlist_t *nvl, const char *name, nvlist_t *value)
259 {
260 (void) private, (void) nvl;
261 FILE *fp = pctl->nvprt_fp;
262
263 indent(pctl, 1);
264 (void) fprintf(fp, "%s = (embedded nvlist)\n", name);
265
266 pctl->nvprt_indent += pctl->nvprt_indentinc;
267 nvlist_print_with_indent(value, pctl);
268 pctl->nvprt_indent -= pctl->nvprt_indentinc;
269
270 indent(pctl, 1);
271 (void) fprintf(fp, "(end %s)\n", name);
272
273 return (1);
274 }
275
276 static int
277 nvaprint_nvlist_array(nvlist_prtctl_t pctl, void *private,
278 nvlist_t *nvl, const char *name, nvlist_t **valuep, uint_t count)
279 {
280 (void) private, (void) nvl;
281 FILE *fp = pctl->nvprt_fp;
282 uint_t i;
283
284 indent(pctl, 1);
285 (void) fprintf(fp, "%s = (array of embedded nvlists)\n", name);
286
287 for (i = 0; i < count; i++) {
288 indent(pctl, 1);
289 (void) fprintf(fp, "(start %s[%d])\n", name, i);
290
291 pctl->nvprt_indent += pctl->nvprt_indentinc;
292 nvlist_print_with_indent(valuep[i], pctl);
293 pctl->nvprt_indent -= pctl->nvprt_indentinc;
294
295 indent(pctl, 1);
296 (void) fprintf(fp, "(end %s[%d])\n", name, i);
297 }
298
299 return (1);
300 }
301
302 /*
303 * ======================================================================
304 * | |
305 * | Interfaces that allow control over formatting. |
306 * | |
307 * ======================================================================
308 */
309
310 void
311 nvlist_prtctl_setdest(nvlist_prtctl_t pctl, FILE *fp)
312 {
313 pctl->nvprt_fp = fp;
314 }
315
316 FILE *
317 nvlist_prtctl_getdest(nvlist_prtctl_t pctl)
318 {
319 return (pctl->nvprt_fp);
320 }
321
322
323 void
324 nvlist_prtctl_setindent(nvlist_prtctl_t pctl, enum nvlist_indent_mode mode,
325 int start, int inc)
326 {
327 if (mode < NVLIST_INDENT_ABS || mode > NVLIST_INDENT_TABBED)
328 mode = NVLIST_INDENT_TABBED;
329
330 if (start < 0)
331 start = 0;
332
333 if (inc < 0)
334 inc = 1;
335
336 pctl->nvprt_indent_mode = mode;
337 pctl->nvprt_indent = start;
338 pctl->nvprt_indentinc = inc;
339 }
340
341 void
342 nvlist_prtctl_doindent(nvlist_prtctl_t pctl, int onemore)
343 {
344 indent(pctl, onemore);
345 }
346
347
348 void
349 nvlist_prtctl_setfmt(nvlist_prtctl_t pctl, enum nvlist_prtctl_fmt which,
350 const char *fmt)
351 {
352 switch (which) {
353 case NVLIST_FMT_MEMBER_NAME:
354 if (fmt == NULL)
355 fmt = "%s = ";
356 pctl->nvprt_nmfmt = fmt;
357 break;
358
359 case NVLIST_FMT_MEMBER_POSTAMBLE:
360 if (fmt == NULL)
361 fmt = "\n";
362 pctl->nvprt_eomfmt = fmt;
363 break;
364
365 case NVLIST_FMT_BTWN_ARRAY:
366 if (fmt == NULL) {
367 pctl->nvprt_btwnarrfmt = " ";
368 pctl->nvprt_btwnarrfmt_nl = 0;
369 } else {
370 pctl->nvprt_btwnarrfmt = fmt;
371 pctl->nvprt_btwnarrfmt_nl = (strstr(fmt, "\n") != NULL);
372 }
373 break;
374
375 default:
376 break;
377 }
378 }
379
380
381 void
382 nvlist_prtctl_dofmt(nvlist_prtctl_t pctl, enum nvlist_prtctl_fmt which, ...)
383 {
384 FILE *fp = pctl->nvprt_fp;
385 va_list ap;
386 char *name;
387
388 va_start(ap, which);
389
390 switch (which) {
391 case NVLIST_FMT_MEMBER_NAME:
392 name = va_arg(ap, char *);
393 (void) fprintf(fp, pctl->nvprt_nmfmt, name);
394 break;
395
396 case NVLIST_FMT_MEMBER_POSTAMBLE:
397 (void) fprintf(fp, "%s", pctl->nvprt_eomfmt);
398 break;
399
400 case NVLIST_FMT_BTWN_ARRAY:
401 (void) fprintf(fp, "%s", pctl->nvprt_btwnarrfmt);
402 break;
403
404 default:
405 break;
406 }
407
408 va_end(ap);
409 }
410
411 /*
412 * ======================================================================
413 * | |
414 * | Interfaces to allow appointment of replacement rendering functions.|
415 * | |
416 * ======================================================================
417 */
418
419 #define NVLIST_PRINTCTL_REPLACE(type, vtype) \
420 void \
421 nvlist_prtctlop_##type(nvlist_prtctl_t pctl, \
422 int (*func)(nvlist_prtctl_t, void *, nvlist_t *, const char *, vtype), \
423 void *private) \
424 { \
425 CUSTPRTOP(pctl, type) = func; \
426 CUSTPRTOPARG(pctl, type) = private; \
427 }
428
429 NVLIST_PRINTCTL_REPLACE(boolean, int)
430 NVLIST_PRINTCTL_REPLACE(boolean_value, boolean_t)
431 NVLIST_PRINTCTL_REPLACE(byte, uchar_t)
432 NVLIST_PRINTCTL_REPLACE(int8, int8_t)
433 NVLIST_PRINTCTL_REPLACE(uint8, uint8_t)
434 NVLIST_PRINTCTL_REPLACE(int16, int16_t)
435 NVLIST_PRINTCTL_REPLACE(uint16, uint16_t)
436 NVLIST_PRINTCTL_REPLACE(int32, int32_t)
437 NVLIST_PRINTCTL_REPLACE(uint32, uint32_t)
438 NVLIST_PRINTCTL_REPLACE(int64, int64_t)
439 NVLIST_PRINTCTL_REPLACE(uint64, uint64_t)
440 NVLIST_PRINTCTL_REPLACE(double, double)
441 NVLIST_PRINTCTL_REPLACE(string, char *)
442 NVLIST_PRINTCTL_REPLACE(hrtime, hrtime_t)
443 NVLIST_PRINTCTL_REPLACE(nvlist, nvlist_t *)
444
445 #define NVLIST_PRINTCTL_AREPLACE(type, vtype) \
446 void \
447 nvlist_prtctlop_##type(nvlist_prtctl_t pctl, \
448 int (*func)(nvlist_prtctl_t, void *, nvlist_t *, const char *, vtype, \
449 uint_t), void *private) \
450 { \
451 CUSTPRTOP(pctl, type) = func; \
452 CUSTPRTOPARG(pctl, type) = private; \
453 }
454
455 NVLIST_PRINTCTL_AREPLACE(boolean_array, boolean_t *)
456 NVLIST_PRINTCTL_AREPLACE(byte_array, uchar_t *)
457 NVLIST_PRINTCTL_AREPLACE(int8_array, int8_t *)
458 NVLIST_PRINTCTL_AREPLACE(uint8_array, uint8_t *)
459 NVLIST_PRINTCTL_AREPLACE(int16_array, int16_t *)
460 NVLIST_PRINTCTL_AREPLACE(uint16_array, uint16_t *)
461 NVLIST_PRINTCTL_AREPLACE(int32_array, int32_t *)
462 NVLIST_PRINTCTL_AREPLACE(uint32_array, uint32_t *)
463 NVLIST_PRINTCTL_AREPLACE(int64_array, int64_t *)
464 NVLIST_PRINTCTL_AREPLACE(uint64_array, uint64_t *)
465 NVLIST_PRINTCTL_AREPLACE(string_array, char **)
466 NVLIST_PRINTCTL_AREPLACE(nvlist_array, nvlist_t **)
467
468 /*
469 * ======================================================================
470 * | |
471 * | Interfaces to manage nvlist_prtctl_t cookies. |
472 * | |
473 * ======================================================================
474 */
475
476
477 static const struct nvlist_printops defprtops =
478 {
479 { nvprint_boolean, NULL },
480 { nvprint_boolean_value, NULL },
481 { nvprint_byte, NULL },
482 { nvprint_int8, NULL },
483 { nvprint_uint8, NULL },
484 { nvprint_int16, NULL },
485 { nvprint_uint16, NULL },
486 { nvprint_int32, NULL },
487 { nvprint_uint32, NULL },
488 { nvprint_int64, NULL },
489 { nvprint_uint64, NULL },
490 { nvprint_double, NULL },
491 { nvprint_string, NULL },
492 { nvprint_hrtime, NULL },
493 { nvprint_nvlist, NULL },
494 { nvaprint_boolean_array, NULL },
495 { nvaprint_byte_array, NULL },
496 { nvaprint_int8_array, NULL },
497 { nvaprint_uint8_array, NULL },
498 { nvaprint_int16_array, NULL },
499 { nvaprint_uint16_array, NULL },
500 { nvaprint_int32_array, NULL },
501 { nvaprint_uint32_array, NULL },
502 { nvaprint_int64_array, NULL },
503 { nvaprint_uint64_array, NULL },
504 { nvaprint_string_array, NULL },
505 { nvaprint_nvlist_array, NULL },
506 };
507
508 static void
509 prtctl_defaults(FILE *fp, struct nvlist_prtctl *pctl,
510 struct nvlist_printops *ops)
511 {
512 pctl->nvprt_fp = fp;
513 pctl->nvprt_indent_mode = NVLIST_INDENT_TABBED;
514 pctl->nvprt_indent = 0;
515 pctl->nvprt_indentinc = 1;
516 pctl->nvprt_nmfmt = "%s = ";
517 pctl->nvprt_eomfmt = "\n";
518 pctl->nvprt_btwnarrfmt = " ";
519 pctl->nvprt_btwnarrfmt_nl = 0;
520
521 pctl->nvprt_dfltops = (struct nvlist_printops *)&defprtops;
522 pctl->nvprt_custops = ops;
523 }
524
525 nvlist_prtctl_t
526 nvlist_prtctl_alloc(void)
527 {
528 struct nvlist_prtctl *pctl;
529 struct nvlist_printops *ops;
530
531 if ((pctl = malloc(sizeof (*pctl))) == NULL)
532 return (NULL);
533
534 if ((ops = calloc(1, sizeof (*ops))) == NULL) {
535 free(pctl);
536 return (NULL);
537 }
538
539 prtctl_defaults(stdout, pctl, ops);
540
541 return (pctl);
542 }
543
544 void
545 nvlist_prtctl_free(nvlist_prtctl_t pctl)
546 {
547 if (pctl != NULL) {
548 free(pctl->nvprt_custops);
549 free(pctl);
550 }
551 }
552
553 /*
554 * ======================================================================
555 * | |
556 * | Top-level print request interfaces. |
557 * | |
558 * ======================================================================
559 */
560
561 /*
562 * nvlist_print - Prints elements in an event buffer
563 */
564 static void
565 nvlist_print_with_indent(nvlist_t *nvl, nvlist_prtctl_t pctl)
566 {
567 FILE *fp = pctl->nvprt_fp;
568 char *name;
569 uint_t nelem;
570 nvpair_t *nvp;
571
572 if (nvl == NULL)
573 return;
574
575 indent(pctl, 0);
576 (void) fprintf(fp, "nvlist version: %d\n", NVL_VERSION(nvl));
577
578 nvp = nvlist_next_nvpair(nvl, NULL);
579
580 while (nvp) {
581 data_type_t type = nvpair_type(nvp);
582
583 name = nvpair_name(nvp);
584 nelem = 0;
585
586 switch (type) {
587 case DATA_TYPE_BOOLEAN: {
588 RENDER(pctl, boolean, nvl, name, 1);
589 break;
590 }
591 case DATA_TYPE_BOOLEAN_VALUE: {
592 boolean_t val;
593 (void) nvpair_value_boolean_value(nvp, &val);
594 RENDER(pctl, boolean_value, nvl, name, val);
595 break;
596 }
597 case DATA_TYPE_BYTE: {
598 uchar_t val;
599 (void) nvpair_value_byte(nvp, &val);
600 RENDER(pctl, byte, nvl, name, val);
601 break;
602 }
603 case DATA_TYPE_INT8: {
604 int8_t val;
605 (void) nvpair_value_int8(nvp, &val);
606 RENDER(pctl, int8, nvl, name, val);
607 break;
608 }
609 case DATA_TYPE_UINT8: {
610 uint8_t val;
611 (void) nvpair_value_uint8(nvp, &val);
612 RENDER(pctl, uint8, nvl, name, val);
613 break;
614 }
615 case DATA_TYPE_INT16: {
616 int16_t val;
617 (void) nvpair_value_int16(nvp, &val);
618 RENDER(pctl, int16, nvl, name, val);
619 break;
620 }
621 case DATA_TYPE_UINT16: {
622 uint16_t val;
623 (void) nvpair_value_uint16(nvp, &val);
624 RENDER(pctl, uint16, nvl, name, val);
625 break;
626 }
627 case DATA_TYPE_INT32: {
628 int32_t val;
629 (void) nvpair_value_int32(nvp, &val);
630 RENDER(pctl, int32, nvl, name, val);
631 break;
632 }
633 case DATA_TYPE_UINT32: {
634 uint32_t val;
635 (void) nvpair_value_uint32(nvp, &val);
636 RENDER(pctl, uint32, nvl, name, val);
637 break;
638 }
639 case DATA_TYPE_INT64: {
640 int64_t val;
641 (void) nvpair_value_int64(nvp, &val);
642 RENDER(pctl, int64, nvl, name, val);
643 break;
644 }
645 case DATA_TYPE_UINT64: {
646 uint64_t val;
647 (void) nvpair_value_uint64(nvp, &val);
648 RENDER(pctl, uint64, nvl, name, val);
649 break;
650 }
651 case DATA_TYPE_DOUBLE: {
652 double val;
653 (void) nvpair_value_double(nvp, &val);
654 RENDER(pctl, double, nvl, name, val);
655 break;
656 }
657 case DATA_TYPE_STRING: {
658 char *val;
659 (void) nvpair_value_string(nvp, &val);
660 RENDER(pctl, string, nvl, name, val);
661 break;
662 }
663 case DATA_TYPE_BOOLEAN_ARRAY: {
664 boolean_t *val;
665 (void) nvpair_value_boolean_array(nvp, &val, &nelem);
666 ARENDER(pctl, boolean_array, nvl, name, val, nelem);
667 break;
668 }
669 case DATA_TYPE_BYTE_ARRAY: {
670 uchar_t *val;
671 (void) nvpair_value_byte_array(nvp, &val, &nelem);
672 ARENDER(pctl, byte_array, nvl, name, val, nelem);
673 break;
674 }
675 case DATA_TYPE_INT8_ARRAY: {
676 int8_t *val;
677 (void) nvpair_value_int8_array(nvp, &val, &nelem);
678 ARENDER(pctl, int8_array, nvl, name, val, nelem);
679 break;
680 }
681 case DATA_TYPE_UINT8_ARRAY: {
682 uint8_t *val;
683 (void) nvpair_value_uint8_array(nvp, &val, &nelem);
684 ARENDER(pctl, uint8_array, nvl, name, val, nelem);
685 break;
686 }
687 case DATA_TYPE_INT16_ARRAY: {
688 int16_t *val;
689 (void) nvpair_value_int16_array(nvp, &val, &nelem);
690 ARENDER(pctl, int16_array, nvl, name, val, nelem);
691 break;
692 }
693 case DATA_TYPE_UINT16_ARRAY: {
694 uint16_t *val;
695 (void) nvpair_value_uint16_array(nvp, &val, &nelem);
696 ARENDER(pctl, uint16_array, nvl, name, val, nelem);
697 break;
698 }
699 case DATA_TYPE_INT32_ARRAY: {
700 int32_t *val;
701 (void) nvpair_value_int32_array(nvp, &val, &nelem);
702 ARENDER(pctl, int32_array, nvl, name, val, nelem);
703 break;
704 }
705 case DATA_TYPE_UINT32_ARRAY: {
706 uint32_t *val;
707 (void) nvpair_value_uint32_array(nvp, &val, &nelem);
708 ARENDER(pctl, uint32_array, nvl, name, val, nelem);
709 break;
710 }
711 case DATA_TYPE_INT64_ARRAY: {
712 int64_t *val;
713 (void) nvpair_value_int64_array(nvp, &val, &nelem);
714 ARENDER(pctl, int64_array, nvl, name, val, nelem);
715 break;
716 }
717 case DATA_TYPE_UINT64_ARRAY: {
718 uint64_t *val;
719 (void) nvpair_value_uint64_array(nvp, &val, &nelem);
720 ARENDER(pctl, uint64_array, nvl, name, val, nelem);
721 break;
722 }
723 case DATA_TYPE_STRING_ARRAY: {
724 char **val;
725 (void) nvpair_value_string_array(nvp, &val, &nelem);
726 ARENDER(pctl, string_array, nvl, name, val, nelem);
727 break;
728 }
729 case DATA_TYPE_HRTIME: {
730 hrtime_t val;
731 (void) nvpair_value_hrtime(nvp, &val);
732 RENDER(pctl, hrtime, nvl, name, val);
733 break;
734 }
735 case DATA_TYPE_NVLIST: {
736 nvlist_t *val;
737 (void) nvpair_value_nvlist(nvp, &val);
738 RENDER(pctl, nvlist, nvl, name, val);
739 break;
740 }
741 case DATA_TYPE_NVLIST_ARRAY: {
742 nvlist_t **val;
743 (void) nvpair_value_nvlist_array(nvp, &val, &nelem);
744 ARENDER(pctl, nvlist_array, nvl, name, val, nelem);
745 break;
746 }
747 default:
748 (void) fprintf(fp, " unknown data type (%d)", type);
749 break;
750 }
751 nvp = nvlist_next_nvpair(nvl, nvp);
752 }
753 }
754
755 void
756 nvlist_print(FILE *fp, nvlist_t *nvl)
757 {
758 struct nvlist_prtctl pc;
759
760 prtctl_defaults(fp, &pc, NULL);
761 nvlist_print_with_indent(nvl, &pc);
762 }
763
764 void
765 nvlist_prt(nvlist_t *nvl, nvlist_prtctl_t pctl)
766 {
767 nvlist_print_with_indent(nvl, pctl);
768 }
769
770 #define NVP(elem, type, vtype, ptype, format) { \
771 vtype value; \
772 \
773 (void) nvpair_value_##type(elem, &value); \
774 (void) printf("%*s%s: " format "\n", indent, "", \
775 nvpair_name(elem), (ptype)value); \
776 }
777
778 #define NVPA(elem, type, vtype, ptype, format) { \
779 uint_t i, count; \
780 vtype *value; \
781 \
782 (void) nvpair_value_##type(elem, &value, &count); \
783 for (i = 0; i < count; i++) { \
784 (void) printf("%*s%s[%d]: " format "\n", indent, "", \
785 nvpair_name(elem), i, (ptype)value[i]); \
786 } \
787 }
788
789 /*
790 * Similar to nvlist_print() but handles arrays slightly differently.
791 */
792 void
793 dump_nvlist(nvlist_t *list, int indent)
794 {
795 nvpair_t *elem = NULL;
796 boolean_t bool_value;
797 nvlist_t *nvlist_value;
798 nvlist_t **nvlist_array_value;
799 uint_t i, count;
800
801 if (list == NULL) {
802 return;
803 }
804
805 while ((elem = nvlist_next_nvpair(list, elem)) != NULL) {
806 switch (nvpair_type(elem)) {
807 case DATA_TYPE_BOOLEAN:
808 (void) printf("%*s%s\n", indent, "", nvpair_name(elem));
809 break;
810
811 case DATA_TYPE_BOOLEAN_VALUE:
812 (void) nvpair_value_boolean_value(elem, &bool_value);
813 (void) printf("%*s%s: %s\n", indent, "",
814 nvpair_name(elem), bool_value ? "true" : "false");
815 break;
816
817 case DATA_TYPE_BYTE:
818 NVP(elem, byte, uchar_t, int, "%u");
819 break;
820
821 case DATA_TYPE_INT8:
822 NVP(elem, int8, int8_t, int, "%d");
823 break;
824
825 case DATA_TYPE_UINT8:
826 NVP(elem, uint8, uint8_t, int, "%u");
827 break;
828
829 case DATA_TYPE_INT16:
830 NVP(elem, int16, int16_t, int, "%d");
831 break;
832
833 case DATA_TYPE_UINT16:
834 NVP(elem, uint16, uint16_t, int, "%u");
835 break;
836
837 case DATA_TYPE_INT32:
838 NVP(elem, int32, int32_t, long, "%ld");
839 break;
840
841 case DATA_TYPE_UINT32:
842 NVP(elem, uint32, uint32_t, ulong_t, "%lu");
843 break;
844
845 case DATA_TYPE_INT64:
846 NVP(elem, int64, int64_t, longlong_t, "%lld");
847 break;
848
849 case DATA_TYPE_UINT64:
850 NVP(elem, uint64, uint64_t, u_longlong_t, "%llu");
851 break;
852
853 case DATA_TYPE_STRING:
854 NVP(elem, string, char *, char *, "'%s'");
855 break;
856
857 case DATA_TYPE_BYTE_ARRAY:
858 NVPA(elem, byte_array, uchar_t, int, "%u");
859 break;
860
861 case DATA_TYPE_INT8_ARRAY:
862 NVPA(elem, int8_array, int8_t, int, "%d");
863 break;
864
865 case DATA_TYPE_UINT8_ARRAY:
866 NVPA(elem, uint8_array, uint8_t, int, "%u");
867 break;
868
869 case DATA_TYPE_INT16_ARRAY:
870 NVPA(elem, int16_array, int16_t, int, "%d");
871 break;
872
873 case DATA_TYPE_UINT16_ARRAY:
874 NVPA(elem, uint16_array, uint16_t, int, "%u");
875 break;
876
877 case DATA_TYPE_INT32_ARRAY:
878 NVPA(elem, int32_array, int32_t, long, "%ld");
879 break;
880
881 case DATA_TYPE_UINT32_ARRAY:
882 NVPA(elem, uint32_array, uint32_t, ulong_t, "%lu");
883 break;
884
885 case DATA_TYPE_INT64_ARRAY:
886 NVPA(elem, int64_array, int64_t, longlong_t, "%lld");
887 break;
888
889 case DATA_TYPE_UINT64_ARRAY:
890 NVPA(elem, uint64_array, uint64_t, u_longlong_t,
891 "%llu");
892 break;
893
894 case DATA_TYPE_STRING_ARRAY:
895 NVPA(elem, string_array, char *, char *, "'%s'");
896 break;
897
898 case DATA_TYPE_NVLIST:
899 (void) nvpair_value_nvlist(elem, &nvlist_value);
900 (void) printf("%*s%s:\n", indent, "",
901 nvpair_name(elem));
902 dump_nvlist(nvlist_value, indent + 4);
903 break;
904
905 case DATA_TYPE_NVLIST_ARRAY:
906 (void) nvpair_value_nvlist_array(elem,
907 &nvlist_array_value, &count);
908 for (i = 0; i < count; i++) {
909 (void) printf("%*s%s[%u]:\n", indent, "",
910 nvpair_name(elem), i);
911 dump_nvlist(nvlist_array_value[i], indent + 4);
912 }
913 break;
914
915 default:
916 (void) printf(dgettext(TEXT_DOMAIN, "bad config type "
917 "%d for %s\n"), nvpair_type(elem),
918 nvpair_name(elem));
919 }
920 }
921 }
922
923 /*
924 * ======================================================================
925 * | |
926 * | Misc private interface. |
927 * | |
928 * ======================================================================
929 */
930
931 /*
932 * Determine if string 'value' matches 'nvp' value. The 'value' string is
933 * converted, depending on the type of 'nvp', prior to match. For numeric
934 * types, a radix independent sscanf conversion of 'value' is used. If 'nvp'
935 * is an array type, 'ai' is the index into the array against which we are
936 * checking for match. If nvp is of DATA_TYPE_STRING*, the caller can pass
937 * in a regex_t compilation of value in 'value_regex' to trigger regular
938 * expression string match instead of simple strcmp().
939 *
940 * Return 1 on match, 0 on no-match, and -1 on error. If the error is
941 * related to value syntax error and 'ep' is non-NULL, *ep will point into
942 * the 'value' string at the location where the error exists.
943 *
944 * NOTE: It may be possible to move the non-regex_t version of this into
945 * common code used by library/kernel/boot.
946 */
947 int
948 nvpair_value_match_regex(nvpair_t *nvp, int ai,
949 char *value, regex_t *value_regex, char **ep)
950 {
951 char *evalue;
952 uint_t a_len;
953 int sr;
954
955 if (ep)
956 *ep = NULL;
957
958 if ((nvp == NULL) || (value == NULL))
959 return (-1); /* error fail match - invalid args */
960
961 /* make sure array and index combination make sense */
962 if ((nvpair_type_is_array(nvp) && (ai < 0)) ||
963 (!nvpair_type_is_array(nvp) && (ai >= 0)))
964 return (-1); /* error fail match - bad index */
965
966 /* non-string values should be single 'chunk' */
967 if ((nvpair_type(nvp) != DATA_TYPE_STRING) &&
968 (nvpair_type(nvp) != DATA_TYPE_STRING_ARRAY)) {
969 value += strspn(value, " \t");
970 evalue = value + strcspn(value, " \t");
971 if (*evalue) {
972 if (ep)
973 *ep = evalue;
974 return (-1); /* error fail match - syntax */
975 }
976 }
977
978 sr = EOF;
979 switch (nvpair_type(nvp)) {
980 case DATA_TYPE_STRING: {
981 char *val;
982
983 /* check string value for match */
984 if (nvpair_value_string(nvp, &val) == 0) {
985 if (value_regex) {
986 if (regexec(value_regex, val,
987 (size_t)0, NULL, 0) == 0)
988 return (1); /* match */
989 } else {
990 if (strcmp(value, val) == 0)
991 return (1); /* match */
992 }
993 }
994 break;
995 }
996 case DATA_TYPE_STRING_ARRAY: {
997 char **val_array;
998
999 /* check indexed string value of array for match */
1000 if ((nvpair_value_string_array(nvp, &val_array, &a_len) == 0) &&
1001 (ai < a_len)) {
1002 if (value_regex) {
1003 if (regexec(value_regex, val_array[ai],
1004 (size_t)0, NULL, 0) == 0)
1005 return (1);
1006 } else {
1007 if (strcmp(value, val_array[ai]) == 0)
1008 return (1);
1009 }
1010 }
1011 break;
1012 }
1013 case DATA_TYPE_BYTE: {
1014 uchar_t val, val_arg;
1015
1016 /* scanf uchar_t from value and check for match */
1017 sr = sscanf(value, "%c", &val_arg);
1018 if ((sr == 1) && (nvpair_value_byte(nvp, &val) == 0) &&
1019 (val == val_arg))
1020 return (1);
1021 break;
1022 }
1023 case DATA_TYPE_BYTE_ARRAY: {
1024 uchar_t *val_array, val_arg;
1025
1026
1027 /* check indexed value of array for match */
1028 sr = sscanf(value, "%c", &val_arg);
1029 if ((sr == 1) &&
1030 (nvpair_value_byte_array(nvp, &val_array, &a_len) == 0) &&
1031 (ai < a_len) &&
1032 (val_array[ai] == val_arg))
1033 return (1);
1034 break;
1035 }
1036 case DATA_TYPE_INT8: {
1037 int8_t val, val_arg;
1038
1039 /* scanf int8_t from value and check for match */
1040 sr = sscanf(value, "%"SCNi8, &val_arg);
1041 if ((sr == 1) &&
1042 (nvpair_value_int8(nvp, &val) == 0) &&
1043 (val == val_arg))
1044 return (1);
1045 break;
1046 }
1047 case DATA_TYPE_INT8_ARRAY: {
1048 int8_t *val_array, val_arg;
1049
1050 /* check indexed value of array for match */
1051 sr = sscanf(value, "%"SCNi8, &val_arg);
1052 if ((sr == 1) &&
1053 (nvpair_value_int8_array(nvp, &val_array, &a_len) == 0) &&
1054 (ai < a_len) &&
1055 (val_array[ai] == val_arg))
1056 return (1);
1057 break;
1058 }
1059 case DATA_TYPE_UINT8: {
1060 uint8_t val, val_arg;
1061
1062 /* scanf uint8_t from value and check for match */
1063 sr = sscanf(value, "%"SCNi8, (int8_t *)&val_arg);
1064 if ((sr == 1) &&
1065 (nvpair_value_uint8(nvp, &val) == 0) &&
1066 (val == val_arg))
1067 return (1);
1068 break;
1069 }
1070 case DATA_TYPE_UINT8_ARRAY: {
1071 uint8_t *val_array, val_arg;
1072
1073 /* check indexed value of array for match */
1074 sr = sscanf(value, "%"SCNi8, (int8_t *)&val_arg);
1075 if ((sr == 1) &&
1076 (nvpair_value_uint8_array(nvp, &val_array, &a_len) == 0) &&
1077 (ai < a_len) &&
1078 (val_array[ai] == val_arg))
1079 return (1);
1080 break;
1081 }
1082 case DATA_TYPE_INT16: {
1083 int16_t val, val_arg;
1084
1085 /* scanf int16_t from value and check for match */
1086 sr = sscanf(value, "%"SCNi16, &val_arg);
1087 if ((sr == 1) &&
1088 (nvpair_value_int16(nvp, &val) == 0) &&
1089 (val == val_arg))
1090 return (1);
1091 break;
1092 }
1093 case DATA_TYPE_INT16_ARRAY: {
1094 int16_t *val_array, val_arg;
1095
1096 /* check indexed value of array for match */
1097 sr = sscanf(value, "%"SCNi16, &val_arg);
1098 if ((sr == 1) &&
1099 (nvpair_value_int16_array(nvp, &val_array, &a_len) == 0) &&
1100 (ai < a_len) &&
1101 (val_array[ai] == val_arg))
1102 return (1);
1103 break;
1104 }
1105 case DATA_TYPE_UINT16: {
1106 uint16_t val, val_arg;
1107
1108 /* scanf uint16_t from value and check for match */
1109 sr = sscanf(value, "%"SCNi16, (int16_t *)&val_arg);
1110 if ((sr == 1) &&
1111 (nvpair_value_uint16(nvp, &val) == 0) &&
1112 (val == val_arg))
1113 return (1);
1114 break;
1115 }
1116 case DATA_TYPE_UINT16_ARRAY: {
1117 uint16_t *val_array, val_arg;
1118
1119 /* check indexed value of array for match */
1120 sr = sscanf(value, "%"SCNi16, (int16_t *)&val_arg);
1121 if ((sr == 1) &&
1122 (nvpair_value_uint16_array(nvp, &val_array, &a_len) == 0) &&
1123 (ai < a_len) &&
1124 (val_array[ai] == val_arg))
1125 return (1);
1126 break;
1127 }
1128 case DATA_TYPE_INT32: {
1129 int32_t val, val_arg;
1130
1131 /* scanf int32_t from value and check for match */
1132 sr = sscanf(value, "%"SCNi32, &val_arg);
1133 if ((sr == 1) &&
1134 (nvpair_value_int32(nvp, &val) == 0) &&
1135 (val == val_arg))
1136 return (1);
1137 break;
1138 }
1139 case DATA_TYPE_INT32_ARRAY: {
1140 int32_t *val_array, val_arg;
1141
1142 /* check indexed value of array for match */
1143 sr = sscanf(value, "%"SCNi32, &val_arg);
1144 if ((sr == 1) &&
1145 (nvpair_value_int32_array(nvp, &val_array, &a_len) == 0) &&
1146 (ai < a_len) &&
1147 (val_array[ai] == val_arg))
1148 return (1);
1149 break;
1150 }
1151 case DATA_TYPE_UINT32: {
1152 uint32_t val, val_arg;
1153
1154 /* scanf uint32_t from value and check for match */
1155 sr = sscanf(value, "%"SCNi32, (int32_t *)&val_arg);
1156 if ((sr == 1) &&
1157 (nvpair_value_uint32(nvp, &val) == 0) &&
1158 (val == val_arg))
1159 return (1);
1160 break;
1161 }
1162 case DATA_TYPE_UINT32_ARRAY: {
1163 uint32_t *val_array, val_arg;
1164
1165 /* check indexed value of array for match */
1166 sr = sscanf(value, "%"SCNi32, (int32_t *)&val_arg);
1167 if ((sr == 1) &&
1168 (nvpair_value_uint32_array(nvp, &val_array, &a_len) == 0) &&
1169 (ai < a_len) &&
1170 (val_array[ai] == val_arg))
1171 return (1);
1172 break;
1173 }
1174 case DATA_TYPE_INT64: {
1175 int64_t val, val_arg;
1176
1177 /* scanf int64_t from value and check for match */
1178 sr = sscanf(value, "%"SCNi64, &val_arg);
1179 if ((sr == 1) &&
1180 (nvpair_value_int64(nvp, &val) == 0) &&
1181 (val == val_arg))
1182 return (1);
1183 break;
1184 }
1185 case DATA_TYPE_INT64_ARRAY: {
1186 int64_t *val_array, val_arg;
1187
1188 /* check indexed value of array for match */
1189 sr = sscanf(value, "%"SCNi64, &val_arg);
1190 if ((sr == 1) &&
1191 (nvpair_value_int64_array(nvp, &val_array, &a_len) == 0) &&
1192 (ai < a_len) &&
1193 (val_array[ai] == val_arg))
1194 return (1);
1195 break;
1196 }
1197 case DATA_TYPE_UINT64: {
1198 uint64_t val_arg, val;
1199
1200 /* scanf uint64_t from value and check for match */
1201 sr = sscanf(value, "%"SCNi64, (int64_t *)&val_arg);
1202 if ((sr == 1) &&
1203 (nvpair_value_uint64(nvp, &val) == 0) &&
1204 (val == val_arg))
1205 return (1);
1206 break;
1207 }
1208 case DATA_TYPE_UINT64_ARRAY: {
1209 uint64_t *val_array, val_arg;
1210
1211 /* check indexed value of array for match */
1212 sr = sscanf(value, "%"SCNi64, (int64_t *)&val_arg);
1213 if ((sr == 1) &&
1214 (nvpair_value_uint64_array(nvp, &val_array, &a_len) == 0) &&
1215 (ai < a_len) &&
1216 (val_array[ai] == val_arg))
1217 return (1);
1218 break;
1219 }
1220 case DATA_TYPE_BOOLEAN_VALUE: {
1221 int32_t val_arg;
1222 boolean_t val;
1223
1224 /* scanf boolean_t from value and check for match */
1225 sr = sscanf(value, "%"SCNi32, (int32_t *)&val_arg);
1226 if ((sr == 1) &&
1227 (nvpair_value_boolean_value(nvp, &val) == 0) &&
1228 (val == val_arg))
1229 return (1);
1230 break;
1231 }
1232 case DATA_TYPE_BOOLEAN_ARRAY: {
1233 boolean_t *val_array;
1234 int32_t val_arg;
1235
1236 /* check indexed value of array for match */
1237 sr = sscanf(value, "%"SCNi32, (int32_t *)&val_arg);
1238 if ((sr == 1) &&
1239 (nvpair_value_boolean_array(nvp,
1240 &val_array, &a_len) == 0) &&
1241 (ai < a_len) &&
1242 (val_array[ai] == val_arg))
1243 return (1);
1244 break;
1245 }
1246 case DATA_TYPE_HRTIME:
1247 case DATA_TYPE_NVLIST:
1248 case DATA_TYPE_NVLIST_ARRAY:
1249 case DATA_TYPE_BOOLEAN:
1250 case DATA_TYPE_DOUBLE:
1251 case DATA_TYPE_UNKNOWN:
1252 default:
1253 /*
1254 * unknown/unsupported data type
1255 */
1256 return (-1); /* error fail match */
1257 }
1258
1259 /*
1260 * check to see if sscanf failed conversion, return approximate
1261 * pointer to problem
1262 */
1263 if (sr != 1) {
1264 if (ep)
1265 *ep = value;
1266 return (-1); /* error fail match - syntax */
1267 }
1268
1269 return (0); /* fail match */
1270 }
1271
1272 int
1273 nvpair_value_match(nvpair_t *nvp, int ai, char *value, char **ep)
1274 {
1275 return (nvpair_value_match_regex(nvp, ai, value, NULL, ep));
1276 }
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