cnvlist.c revision 336345
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: stable/11/sys/contrib/libnv/cnvlist.c 336345 2018-07-16 14:56:30Z kevans $ 27 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: stable/11/sys/contrib/libnv/cnvlist.c 336345 2018-07-16 14:56:30Z kevans $"); 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) \ 57ftype \ 58cnvlist_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 68CNVLIST_GET(bool, bool, BOOL) 69CNVLIST_GET(uint64_t, number, NUMBER) 70CNVLIST_GET(const char *, string, STRING) 71CNVLIST_GET(const nvlist_t *, nvlist, NVLIST) 72#ifndef _KERNEL 73CNVLIST_GET(int, descriptor, DESCRIPTOR) 74#endif 75 76#undef CNVLIST_GET 77 78#define CNVLIST_GET_ARRAY(ftype, type, NVTYPE) \ 79ftype \ 80cnvlist_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 90CNVLIST_GET_ARRAY(const bool *, bool_array, BOOL_ARRAY) 91CNVLIST_GET_ARRAY(const uint64_t *, number_array, NUMBER_ARRAY) 92CNVLIST_GET_ARRAY(const char * const *, string_array, STRING_ARRAY) 93CNVLIST_GET_ARRAY(const nvlist_t * const *, nvlist_array, NVLIST_ARRAY) 94#ifndef _KERNEL 95CNVLIST_GET_ARRAY(const int *, descriptor_array, DESCRIPTOR_ARRAY) 96#endif 97 98#undef CNVLIST_GET_ARRAY 99 100const void * 101cnvlist_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) \ 110ftype \ 111cnvlist_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 125CNVLIST_TAKE(bool, bool, BOOL) 126CNVLIST_TAKE(uint64_t, number, NUMBER) 127CNVLIST_TAKE(char *, string, STRING) 128CNVLIST_TAKE(nvlist_t *, nvlist, NVLIST) 129#ifndef _KERNEL 130CNVLIST_TAKE(int, descriptor, DESCRIPTOR) 131#endif 132 133#undef CNVLIST_TAKE 134 135#define CNVLIST_TAKE_ARRAY(ftype, type, NVTYPE) \ 136ftype \ 137cnvlist_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 151CNVLIST_TAKE_ARRAY(bool *, bool_array, BOOL_ARRAY) 152CNVLIST_TAKE_ARRAY(uint64_t *, number_array, NUMBER_ARRAY) 153CNVLIST_TAKE_ARRAY(char **, string_array, STRING_ARRAY) 154CNVLIST_TAKE_ARRAY(nvlist_t **, nvlist_array, NVLIST_ARRAY) 155#ifndef _KERNEL 156CNVLIST_TAKE_ARRAY(int *, descriptor_array, DESCRIPTOR_ARRAY); 157#endif 158 159#undef CNVLIST_TAKE_ARRAY 160 161void * 162cnvlist_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) \ 176void \ 177cnvlist_free_##type(nvlist_t *nvl, void *cookiep) \ 178{ \ 179 \ 180 nvlist_free_nvpair(nvl, cookiep); \ 181} 182 183CNVLIST_FREE(bool) 184CNVLIST_FREE(number) 185CNVLIST_FREE(string) 186CNVLIST_FREE(nvlist) 187CNVLIST_FREE(binary); 188CNVLIST_FREE(bool_array) 189CNVLIST_FREE(number_array) 190CNVLIST_FREE(string_array) 191CNVLIST_FREE(nvlist_array) 192#ifndef _KERNEL 193CNVLIST_FREE(descriptor) 194CNVLIST_FREE(descriptor_array) 195#endif 196 197#undef CNVLIST_FREE 198