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 */
24
25 #ifndef _SYS_NVPAIR_H
26 #define _SYS_NVPAIR_H
27
28 #include <sys/types.h>
29 #include <sys/errno.h>
30 #include <sys/va_list.h>
31
32 #if defined(_KERNEL) && !defined(_BOOT)
33 #include <sys/kmem.h>
34 #endif
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 typedef enum {
41 DATA_TYPE_UNKNOWN = 0,
42 DATA_TYPE_BOOLEAN,
43 DATA_TYPE_BYTE,
44 DATA_TYPE_INT16,
45 DATA_TYPE_UINT16,
46 DATA_TYPE_INT32,
47 DATA_TYPE_UINT32,
48 DATA_TYPE_INT64,
49 DATA_TYPE_UINT64,
50 DATA_TYPE_STRING,
51 DATA_TYPE_BYTE_ARRAY,
52 DATA_TYPE_INT16_ARRAY,
53 DATA_TYPE_UINT16_ARRAY,
54 DATA_TYPE_INT32_ARRAY,
55 DATA_TYPE_UINT32_ARRAY,
56 DATA_TYPE_INT64_ARRAY,
57 DATA_TYPE_UINT64_ARRAY,
58 DATA_TYPE_STRING_ARRAY,
59 DATA_TYPE_HRTIME,
60 DATA_TYPE_NVLIST,
61 DATA_TYPE_NVLIST_ARRAY,
62 DATA_TYPE_BOOLEAN_VALUE,
63 DATA_TYPE_INT8,
64 DATA_TYPE_UINT8,
65 DATA_TYPE_BOOLEAN_ARRAY,
66 DATA_TYPE_INT8_ARRAY,
67 #if !defined(_KERNEL)
68 DATA_TYPE_UINT8_ARRAY,
69 DATA_TYPE_DOUBLE
70 #else
71 DATA_TYPE_UINT8_ARRAY
72 #endif
73 } data_type_t;
74
75 typedef struct nvpair {
76 int32_t nvp_size; /* size of this nvpair */
77 int16_t nvp_name_sz; /* length of name string */
78 int16_t nvp_reserve; /* not used */
79 int32_t nvp_value_elem; /* number of elements for array types */
80 data_type_t nvp_type; /* type of value */
81 /* name string */
82 /* aligned ptr array for string arrays */
83 /* aligned array of data for value */
84 } nvpair_t;
85
86 /* nvlist header */
87 typedef struct nvlist {
88 int32_t nvl_version;
89 uint32_t nvl_nvflag; /* persistent flags */
90 uint64_t nvl_priv; /* ptr to private data if not packed */
91 uint32_t nvl_flag;
92 int32_t nvl_pad; /* currently not used, for alignment */
93 } nvlist_t;
94
95 /* nvp implementation version */
96 #define NV_VERSION 0
97
98 /* nvlist pack encoding */
99 #define NV_ENCODE_NATIVE 0
100 #define NV_ENCODE_XDR 1
101
102 /* nvlist persistent unique name flags, stored in nvl_nvflags */
103 #define NV_UNIQUE_NAME 0x1
104 #define NV_UNIQUE_NAME_TYPE 0x2
105
106 /* nvlist lookup pairs related flags */
107 #define NV_FLAG_NOENTOK 0x1
108
109 /* convenience macros */
110 #define NV_ALIGN(x) (((ulong_t)(x) + 7ul) & ~7ul)
111 #define NV_ALIGN4(x) (((x) + 3) & ~3)
112
113 #define NVP_SIZE(nvp) ((nvp)->nvp_size)
114 #define NVP_NAME(nvp) ((char *)(nvp) + sizeof (nvpair_t))
115 #define NVP_TYPE(nvp) ((nvp)->nvp_type)
116 #define NVP_NELEM(nvp) ((nvp)->nvp_value_elem)
117 #define NVP_VALUE(nvp) ((char *)(nvp) + NV_ALIGN(sizeof (nvpair_t) \
118 + (nvp)->nvp_name_sz))
119
120 #define NVL_VERSION(nvl) ((nvl)->nvl_version)
121 #define NVL_SIZE(nvl) ((nvl)->nvl_size)
122 #define NVL_FLAG(nvl) ((nvl)->nvl_flag)
123
124 /* NV allocator framework */
125 typedef struct nv_alloc_ops nv_alloc_ops_t;
126
127 typedef struct nv_alloc {
128 const nv_alloc_ops_t *nva_ops;
129 void *nva_arg;
130 } nv_alloc_t;
131
132 struct nv_alloc_ops {
133 int (*nv_ao_init)(nv_alloc_t *, __va_list);
134 void (*nv_ao_fini)(nv_alloc_t *);
135 void *(*nv_ao_alloc)(nv_alloc_t *, size_t);
136 void (*nv_ao_free)(nv_alloc_t *, void *, size_t);
137 void (*nv_ao_reset)(nv_alloc_t *);
138 };
139
140 extern const nv_alloc_ops_t *nv_fixed_ops;
141 extern nv_alloc_t *nv_alloc_nosleep;
142
143 #if defined(_KERNEL) && !defined(_BOOT)
144 extern nv_alloc_t *nv_alloc_sleep;
145 #endif
146
147 int nv_alloc_init(nv_alloc_t *, const nv_alloc_ops_t *, /* args */ ...);
148 void nv_alloc_reset(nv_alloc_t *);
149 void nv_alloc_fini(nv_alloc_t *);
150
151 /* list management */
152 int nvlist_alloc(nvlist_t **, uint_t, int);
153 void nvlist_free(nvlist_t *);
154 int nvlist_size(nvlist_t *, size_t *, int);
155 int nvlist_pack(nvlist_t *, char **, size_t *, int, int);
156 int nvlist_unpack(char *, size_t, nvlist_t **, int);
157 int nvlist_dup(nvlist_t *, nvlist_t **, int);
158 int nvlist_merge(nvlist_t *, nvlist_t *, int);
159
160 uint_t nvlist_nvflag(nvlist_t *);
161
162 int nvlist_xalloc(nvlist_t **, uint_t, nv_alloc_t *);
163 int nvlist_xpack(nvlist_t *, char **, size_t *, int, nv_alloc_t *);
164 int nvlist_xunpack(char *, size_t, nvlist_t **, nv_alloc_t *);
165 int nvlist_xdup(nvlist_t *, nvlist_t **, nv_alloc_t *);
166 nv_alloc_t *nvlist_lookup_nv_alloc(nvlist_t *);
167
168 int nvlist_add_nvpair(nvlist_t *, nvpair_t *);
169 int nvlist_add_boolean(nvlist_t *, const char *);
170 int nvlist_add_boolean_value(nvlist_t *, const char *, boolean_t);
171 int nvlist_add_byte(nvlist_t *, const char *, uchar_t);
172 int nvlist_add_int8(nvlist_t *, const char *, int8_t);
173 int nvlist_add_uint8(nvlist_t *, const char *, uint8_t);
174 int nvlist_add_int16(nvlist_t *, const char *, int16_t);
175 int nvlist_add_uint16(nvlist_t *, const char *, uint16_t);
176 int nvlist_add_int32(nvlist_t *, const char *, int32_t);
177 int nvlist_add_uint32(nvlist_t *, const char *, uint32_t);
178 int nvlist_add_int64(nvlist_t *, const char *, int64_t);
179 int nvlist_add_uint64(nvlist_t *, const char *, uint64_t);
180 int nvlist_add_string(nvlist_t *, const char *, const char *);
181 int nvlist_add_nvlist(nvlist_t *, const char *, nvlist_t *);
182 int nvlist_add_boolean_array(nvlist_t *, const char *, boolean_t *, uint_t);
183 int nvlist_add_byte_array(nvlist_t *, const char *, uchar_t *, uint_t);
184 int nvlist_add_int8_array(nvlist_t *, const char *, int8_t *, uint_t);
185 int nvlist_add_uint8_array(nvlist_t *, const char *, uint8_t *, uint_t);
186 int nvlist_add_int16_array(nvlist_t *, const char *, int16_t *, uint_t);
187 int nvlist_add_uint16_array(nvlist_t *, const char *, uint16_t *, uint_t);
188 int nvlist_add_int32_array(nvlist_t *, const char *, int32_t *, uint_t);
189 int nvlist_add_uint32_array(nvlist_t *, const char *, uint32_t *, uint_t);
190 int nvlist_add_int64_array(nvlist_t *, const char *, int64_t *, uint_t);
191 int nvlist_add_uint64_array(nvlist_t *, const char *, uint64_t *, uint_t);
192 int nvlist_add_string_array(nvlist_t *, const char *, char *const *, uint_t);
193 int nvlist_add_nvlist_array(nvlist_t *, const char *, nvlist_t **, uint_t);
194 int nvlist_add_hrtime(nvlist_t *, const char *, hrtime_t);
195 #if !defined(_KERNEL)
196 int nvlist_add_double(nvlist_t *, const char *, double);
197 #endif
198
199 int nvlist_remove(nvlist_t *, const char *, data_type_t);
200 int nvlist_remove_all(nvlist_t *, const char *);
201 int nvlist_remove_nvpair(nvlist_t *, nvpair_t *);
202
203 int nvlist_lookup_boolean(nvlist_t *, const char *);
204 int nvlist_lookup_boolean_value(nvlist_t *, const char *, boolean_t *);
205 int nvlist_lookup_byte(nvlist_t *, const char *, uchar_t *);
206 int nvlist_lookup_int8(nvlist_t *, const char *, int8_t *);
207 int nvlist_lookup_uint8(nvlist_t *, const char *, uint8_t *);
208 int nvlist_lookup_int16(nvlist_t *, const char *, int16_t *);
209 int nvlist_lookup_uint16(nvlist_t *, const char *, uint16_t *);
210 int nvlist_lookup_int32(nvlist_t *, const char *, int32_t *);
211 int nvlist_lookup_uint32(nvlist_t *, const char *, uint32_t *);
212 int nvlist_lookup_int64(nvlist_t *, const char *, int64_t *);
213 int nvlist_lookup_uint64(nvlist_t *, const char *, uint64_t *);
214 int nvlist_lookup_string(nvlist_t *, const char *, char **);
215 int nvlist_lookup_nvlist(nvlist_t *, const char *, nvlist_t **);
216 int nvlist_lookup_boolean_array(nvlist_t *, const char *,
217 boolean_t **, uint_t *);
218 int nvlist_lookup_byte_array(nvlist_t *, const char *, uchar_t **, uint_t *);
219 int nvlist_lookup_int8_array(nvlist_t *, const char *, int8_t **, uint_t *);
220 int nvlist_lookup_uint8_array(nvlist_t *, const char *, uint8_t **, uint_t *);
221 int nvlist_lookup_int16_array(nvlist_t *, const char *, int16_t **, uint_t *);
222 int nvlist_lookup_uint16_array(nvlist_t *, const char *, uint16_t **, uint_t *);
223 int nvlist_lookup_int32_array(nvlist_t *, const char *, int32_t **, uint_t *);
224 int nvlist_lookup_uint32_array(nvlist_t *, const char *, uint32_t **, uint_t *);
225 int nvlist_lookup_int64_array(nvlist_t *, const char *, int64_t **, uint_t *);
226 int nvlist_lookup_uint64_array(nvlist_t *, const char *, uint64_t **, uint_t *);
227 int nvlist_lookup_string_array(nvlist_t *, const char *, char ***, uint_t *);
228 int nvlist_lookup_nvlist_array(nvlist_t *, const char *,
229 nvlist_t ***, uint_t *);
230 int nvlist_lookup_hrtime(nvlist_t *, const char *, hrtime_t *);
231 int nvlist_lookup_pairs(nvlist_t *, int, ...);
232 #if !defined(_KERNEL)
233 int nvlist_lookup_double(nvlist_t *, const char *, double *);
234 #endif
235
236 int nvlist_lookup_nvpair(nvlist_t *, const char *, nvpair_t **);
237 int nvlist_lookup_nvpair_embedded_index(nvlist_t *, const char *, nvpair_t **,
238 int *, char **);
239 boolean_t nvlist_exists(nvlist_t *, const char *);
240 boolean_t nvlist_empty(nvlist_t *);
241
242 /* processing nvpair */
243 nvpair_t *nvlist_next_nvpair(nvlist_t *, nvpair_t *);
244 nvpair_t *nvlist_prev_nvpair(nvlist_t *, nvpair_t *);
245 char *nvpair_name(nvpair_t *);
246 data_type_t nvpair_type(nvpair_t *);
247 int nvpair_type_is_array(nvpair_t *);
248 int nvpair_value_boolean_value(nvpair_t *, boolean_t *);
249 int nvpair_value_byte(nvpair_t *, uchar_t *);
250 int nvpair_value_int8(nvpair_t *, int8_t *);
251 int nvpair_value_uint8(nvpair_t *, uint8_t *);
252 int nvpair_value_int16(nvpair_t *, int16_t *);
253 int nvpair_value_uint16(nvpair_t *, uint16_t *);
254 int nvpair_value_int32(nvpair_t *, int32_t *);
255 int nvpair_value_uint32(nvpair_t *, uint32_t *);
256 int nvpair_value_int64(nvpair_t *, int64_t *);
257 int nvpair_value_uint64(nvpair_t *, uint64_t *);
258 int nvpair_value_string(nvpair_t *, char **);
259 int nvpair_value_nvlist(nvpair_t *, nvlist_t **);
260 int nvpair_value_boolean_array(nvpair_t *, boolean_t **, uint_t *);
261 int nvpair_value_byte_array(nvpair_t *, uchar_t **, uint_t *);
262 int nvpair_value_int8_array(nvpair_t *, int8_t **, uint_t *);
263 int nvpair_value_uint8_array(nvpair_t *, uint8_t **, uint_t *);
264 int nvpair_value_int16_array(nvpair_t *, int16_t **, uint_t *);
265 int nvpair_value_uint16_array(nvpair_t *, uint16_t **, uint_t *);
266 int nvpair_value_int32_array(nvpair_t *, int32_t **, uint_t *);
267 int nvpair_value_uint32_array(nvpair_t *, uint32_t **, uint_t *);
268 int nvpair_value_int64_array(nvpair_t *, int64_t **, uint_t *);
269 int nvpair_value_uint64_array(nvpair_t *, uint64_t **, uint_t *);
270 int nvpair_value_string_array(nvpair_t *, char ***, uint_t *);
271 int nvpair_value_nvlist_array(nvpair_t *, nvlist_t ***, uint_t *);
272 int nvpair_value_hrtime(nvpair_t *, hrtime_t *);
273 #if !defined(_KERNEL)
274 int nvpair_value_double(nvpair_t *, double *);
275 #endif
276
277 #ifdef __cplusplus
278 }
279 #endif
280
281 #endif /* _SYS_NVPAIR_H */