sys/contrib/libnv/cnvlist.c

   1 /*-
   2  * Copyright (c) 2016 Adam Starak <starak.adam@gmail.com>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #ifdef _KERNEL
  33
  34 #include <sys/types.h>
  35 #include <sys/param.h>
  36 #include <sys/kernel.h>
  37 #include <sys/systm.h>
  38 #include <sys/malloc.h>
  39
  40 #include <machine/stdarg.h>
  41
  42 #else
  43 #include <stdarg.h>
  44 #include <stdbool.h>
  45 #include <stdint.h>
  46 #include <stdlib.h>
  47 #endif
  48
  49 #include <sys/cnv.h>
  50 #include <sys/nv.h>
  51
  52 #include "nv_impl.h"
  53 #include "nvlist_impl.h"
  54 #include "nvpair_impl.h"
  55
  56 #define CNVLIST_GET(ftype, type, NVTYPE)                                \
  57 ftype                                                                   \
  58 cnvlist_get_##type(void *cookiep)                                       \
  59 {                                                                       \
  60                                                                         \
  61         if (nvpair_type(cookiep) != NV_TYPE_##NVTYPE) {                 \
  62                 nvlist_report_missing(NV_TYPE_##NVTYPE,                 \
  63                     nvpair_name(cookiep));                              \
  64         }                                                               \
  65         return (nvpair_get_##type(cookiep));                            \
  66 }
  67
  68 CNVLIST_GET(bool, bool, BOOL)
  69 CNVLIST_GET(uint64_t, number, NUMBER)
  70 CNVLIST_GET(const char *, string, STRING)
  71 CNVLIST_GET(const nvlist_t *, nvlist, NVLIST)
  72 #ifndef _KERNEL
  73 CNVLIST_GET(int, descriptor, DESCRIPTOR)
  74 #endif
  75
  76 #undef  CNVLIST_GET
  77
  78 #define CNVLIST_GET_ARRAY(ftype, type, NVTYPE)                          \
  79 ftype                                                                   \
  80 cnvlist_get_##type(void *cookiep, size_t *nitemsp)                      \
  81 {                                                                       \
  82                                                                         \
  83         if (nvpair_type(cookiep) != NV_TYPE_##NVTYPE) {                 \
  84                 nvlist_report_missing(NV_TYPE_##NVTYPE,                 \
  85                     nvpair_name(cookiep));                              \
  86         }                                                               \
  87         return (nvpair_get_##type(cookiep, nitemsp));                   \
  88 }
  89
  90 CNVLIST_GET_ARRAY(const bool *, bool_array, BOOL_ARRAY)
  91 CNVLIST_GET_ARRAY(const uint64_t *, number_array, NUMBER_ARRAY)
  92 CNVLIST_GET_ARRAY(const char * const *, string_array, STRING_ARRAY)
  93 CNVLIST_GET_ARRAY(const nvlist_t * const *, nvlist_array, NVLIST_ARRAY)
  94 #ifndef _KERNEL
  95 CNVLIST_GET_ARRAY(const int *, descriptor_array, DESCRIPTOR_ARRAY)
  96 #endif
  97
  98 #undef  CNVLIST_GET_ARRAY
  99
 100 const void *
 101 cnvlist_get_binary(void *cookiep, size_t *sizep)
 102 {
 103
 104         if (nvpair_type(cookiep) != NV_TYPE_BINARY)
 105                 nvlist_report_missing(NV_TYPE_BINARY, nvpair_name(cookiep));
 106         return (nvpair_get_binary(cookiep, sizep));
 107 }
 108
 109 #define CNVLIST_TAKE(ftype, type, NVTYPE)                               \
 110 ftype                                                                   \
 111 cnvlist_take_##type(nvlist_t *nvl, void *cookiep)                       \
 112 {                                                                       \
 113         ftype value;                                                    \
 114                                                                         \
 115         if (nvpair_type(cookiep) != NV_TYPE_##NVTYPE) {                 \
 116                 nvlist_report_missing(NV_TYPE_##NVTYPE,                 \
 117                     nvpair_name(cookiep));                              \
 118         }                                                               \
 119         value = (ftype)(intptr_t)nvpair_get_##type(cookiep);            \
 120         nvlist_remove_nvpair(nvl, cookiep);                             \
 121         nvpair_free_structure(cookiep);                                 \
 122         return (value);                                                 \
 123 }
 124
 125 CNVLIST_TAKE(bool, bool, BOOL)
 126 CNVLIST_TAKE(uint64_t, number, NUMBER)
 127 CNVLIST_TAKE(char *, string, STRING)
 128 CNVLIST_TAKE(nvlist_t *, nvlist, NVLIST)
 129 #ifndef _KERNEL
 130 CNVLIST_TAKE(int, descriptor, DESCRIPTOR)
 131 #endif
 132
 133 #undef  CNVLIST_TAKE
 134
 135 #define CNVLIST_TAKE_ARRAY(ftype, type, NVTYPE)                         \
 136 ftype                                                                   \
 137 cnvlist_take_##type(nvlist_t *nvl, void *cookiep, size_t *nitemsp)      \
 138 {                                                                       \
 139         ftype value;                                                    \
 140                                                                         \
 141         if (nvpair_type(cookiep) != NV_TYPE_##NVTYPE) {                 \
 142                 nvlist_report_missing(NV_TYPE_##NVTYPE,                 \
 143                     nvpair_name(cookiep));                              \
 144         }                                                               \
 145         value = (ftype)(intptr_t)nvpair_get_##type(cookiep, nitemsp);   \
 146         nvlist_remove_nvpair(nvl, cookiep);                             \
 147         nvpair_free_structure(cookiep);                                 \
 148         return (value);                                                 \
 149 }
 150
 151 CNVLIST_TAKE_ARRAY(bool *, bool_array, BOOL_ARRAY)
 152 CNVLIST_TAKE_ARRAY(uint64_t *, number_array, NUMBER_ARRAY)
 153 CNVLIST_TAKE_ARRAY(char **, string_array, STRING_ARRAY)
 154 CNVLIST_TAKE_ARRAY(nvlist_t **, nvlist_array, NVLIST_ARRAY)
 155 #ifndef _KERNEL
 156 CNVLIST_TAKE_ARRAY(int *, descriptor_array, DESCRIPTOR_ARRAY);
 157 #endif
 158
 159 #undef  CNVLIST_TAKE_ARRAY
 160
 161 void *
 162 cnvlist_take_binary(nvlist_t *nvl, void *cookiep, size_t *sizep)
 163 {
 164         void *value;
 165
 166         if (nvpair_type(cookiep) != NV_TYPE_BINARY)
 167                 nvlist_report_missing(NV_TYPE_BINARY, nvpair_name(cookiep));
 168         value = (void *)(intptr_t)nvpair_get_binary(cookiep, sizep);
 169         nvlist_remove_nvpair(nvl, cookiep);
 170         nvpair_free_structure(cookiep);
 171         return (value);
 172 }
 173
 174
 175 #define CNVLIST_FREE(type)                                              \
 176 void                                                                    \
 177 cnvlist_free_##type(nvlist_t *nvl, void *cookiep)                       \
 178 {                                                                       \
 179                                                                         \
 180         nvlist_free_nvpair(nvl, cookiep);                               \
 181 }
 182
 183 CNVLIST_FREE(bool)
 184 CNVLIST_FREE(number)
 185 CNVLIST_FREE(string)
 186 CNVLIST_FREE(nvlist)
 187 CNVLIST_FREE(binary);
 188 CNVLIST_FREE(bool_array)
 189 CNVLIST_FREE(number_array)
 190 CNVLIST_FREE(string_array)
 191 CNVLIST_FREE(nvlist_array)
 192 #ifndef _KERNEL
 193 CNVLIST_FREE(descriptor)
 194 CNVLIST_FREE(descriptor_array)
 195 #endif
 196
 197 #undef  CNVLIST_FREE