include/openssl/conf.h

   1 /*
   2  * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef  OPENSSL_CONF_H
  11 # define OPENSSL_CONF_H
  12 # pragma once
  13
  14 # include <openssl/macros.h>
  15 # ifndef OPENSSL_NO_DEPRECATED_3_0
  16 #  define HEADER_CONF_H
  17 # endif
  18
  19 # include <openssl/bio.h>
  20 # include <openssl/lhash.h>
  21 # include <openssl/safestack.h>
  22 # include <openssl/e_os2.h>
  23 # include <openssl/types.h>
  24 # include <openssl/conferr.h>
  25
  26 #ifdef  __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 typedef struct {
  31     char *section;
  32     char *name;
  33     char *value;
  34 } CONF_VALUE;
  35
  36 DEFINE_OR_DECLARE_STACK_OF(CONF_VALUE)
  37
  38 DEFINE_LHASH_OF(CONF_VALUE);
  39
  40 struct conf_st;
  41 struct conf_method_st;
  42 typedef struct conf_method_st CONF_METHOD;
  43
  44 struct conf_method_st {
  45     const char *name;
  46     CONF *(*create) (CONF_METHOD *meth);
  47     int (*init) (CONF *conf);
  48     int (*destroy) (CONF *conf);
  49     int (*destroy_data) (CONF *conf);
  50     int (*load_bio) (CONF *conf, BIO *bp, long *eline);
  51     int (*dump) (const CONF *conf, BIO *bp);
  52     int (*is_number) (const CONF *conf, char c);
  53     int (*to_int) (const CONF *conf, char c);
  54     int (*load) (CONF *conf, const char *name, long *eline);
  55 };
  56
  57 /* Module definitions */
  58
  59 typedef struct conf_imodule_st CONF_IMODULE;
  60 typedef struct conf_module_st CONF_MODULE;
  61
  62 STACK_OF(CONF_MODULE);
  63 STACK_OF(CONF_IMODULE);
  64
  65 /* DSO module function typedefs */
  66 typedef int conf_init_func (CONF_IMODULE *md, const CONF *cnf);
  67 typedef void conf_finish_func (CONF_IMODULE *md);
  68
  69 # define CONF_MFLAGS_IGNORE_ERRORS       0x1
  70 # define CONF_MFLAGS_IGNORE_RETURN_CODES 0x2
  71 # define CONF_MFLAGS_SILENT              0x4
  72 # define CONF_MFLAGS_NO_DSO              0x8
  73 # define CONF_MFLAGS_IGNORE_MISSING_FILE 0x10
  74 # define CONF_MFLAGS_DEFAULT_SECTION     0x20
  75
  76 int CONF_set_default_method(CONF_METHOD *meth);
  77 void CONF_set_nconf(CONF *conf, LHASH_OF(CONF_VALUE) *hash);
  78 LHASH_OF(CONF_VALUE) *CONF_load(LHASH_OF(CONF_VALUE) *conf, const char *file,
  79                                 long *eline);
  80 # ifndef OPENSSL_NO_STDIO
  81 LHASH_OF(CONF_VALUE) *CONF_load_fp(LHASH_OF(CONF_VALUE) *conf, FILE *fp,
  82                                    long *eline);
  83 # endif
  84 LHASH_OF(CONF_VALUE) *CONF_load_bio(LHASH_OF(CONF_VALUE) *conf, BIO *bp,
  85                                     long *eline);
  86 STACK_OF(CONF_VALUE) *CONF_get_section(LHASH_OF(CONF_VALUE) *conf,
  87                                        const char *section);
  88 char *CONF_get_string(LHASH_OF(CONF_VALUE) *conf, const char *group,
  89                       const char *name);
  90 long CONF_get_number(LHASH_OF(CONF_VALUE) *conf, const char *group,
  91                      const char *name);
  92 void CONF_free(LHASH_OF(CONF_VALUE) *conf);
  93 #ifndef OPENSSL_NO_STDIO
  94 int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out);
  95 #endif
  96 int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out);
  97
  98 DEPRECATEDIN_1_1_0(void OPENSSL_config(const char *config_name))
  99
 100 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
 101 # define OPENSSL_no_config() \
 102     OPENSSL_init_crypto(OPENSSL_INIT_NO_LOAD_CONFIG, NULL)
 103 #endif
 104
 105 /*
 106  * New conf code.  The semantics are different from the functions above. If
 107  * that wasn't the case, the above functions would have been replaced
 108  */
 109
 110 struct conf_st {
 111     CONF_METHOD *meth;
 112     void *meth_data;
 113     LHASH_OF(CONF_VALUE) *data;
 114     unsigned int flag_dollarid:1;
 115     OPENSSL_CTX *libctx;
 116 };
 117
 118 CONF *NCONF_new_with_libctx(OPENSSL_CTX *libctx, CONF_METHOD *meth);
 119 CONF *NCONF_new(CONF_METHOD *meth);
 120 CONF_METHOD *NCONF_default(void);
 121 DEPRECATEDIN_3_0(CONF_METHOD *NCONF_WIN32(void))
 122 void NCONF_free(CONF *conf);
 123 void NCONF_free_data(CONF *conf);
 124
 125 int NCONF_load(CONF *conf, const char *file, long *eline);
 126 # ifndef OPENSSL_NO_STDIO
 127 int NCONF_load_fp(CONF *conf, FILE *fp, long *eline);
 128 # endif
 129 int NCONF_load_bio(CONF *conf, BIO *bp, long *eline);
 130 STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,
 131                                         const char *section);
 132 char *NCONF_get_string(const CONF *conf, const char *group, const char *name);
 133 int NCONF_get_number_e(const CONF *conf, const char *group, const char *name,
 134                        long *result);
 135 #ifndef OPENSSL_NO_STDIO
 136 int NCONF_dump_fp(const CONF *conf, FILE *out);
 137 #endif
 138 int NCONF_dump_bio(const CONF *conf, BIO *out);
 139
 140 #define NCONF_get_number(c,g,n,r) NCONF_get_number_e(c,g,n,r)
 141
 142 /* Module functions */
 143
 144 int CONF_modules_load(const CONF *cnf, const char *appname,
 145                       unsigned long flags);
 146 int CONF_modules_load_file_with_libctx(OPENSSL_CTX *libctx, const char *filename,
 147                                        const char *appname, unsigned long flags);
 148 int CONF_modules_load_file(const char *filename, const char *appname,
 149                            unsigned long flags);
 150 void CONF_modules_unload(int all);
 151 void CONF_modules_finish(void);
 152 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
 153 # define CONF_modules_free() while(0) continue
 154 #endif
 155 int CONF_module_add(const char *name, conf_init_func *ifunc,
 156                     conf_finish_func *ffunc);
 157
 158 const char *CONF_imodule_get_name(const CONF_IMODULE *md);
 159 const char *CONF_imodule_get_value(const CONF_IMODULE *md);
 160 void *CONF_imodule_get_usr_data(const CONF_IMODULE *md);
 161 void CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data);
 162 CONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md);
 163 unsigned long CONF_imodule_get_flags(const CONF_IMODULE *md);
 164 void CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags);
 165 void *CONF_module_get_usr_data(CONF_MODULE *pmod);
 166 void CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data);
 167
 168 char *CONF_get1_default_config_file(void);
 169
 170 int CONF_parse_list(const char *list, int sep, int nospc,
 171                     int (*list_cb) (const char *elem, int len, void *usr),
 172                     void *arg);
 173
 174 void OPENSSL_load_builtin_modules(void);
 175
 176
 177 # ifdef  __cplusplus
 178 }
 179 # endif
 180 #endif