include/openssl/objects.h

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 HEADER_OBJECTS_H
  11 # define HEADER_OBJECTS_H
  12
  13 # include <openssl/obj_mac.h>
  14 # include <openssl/bio.h>
  15 # include <openssl/asn1.h>
  16
  17 # define OBJ_NAME_TYPE_UNDEF             0x00
  18 # define OBJ_NAME_TYPE_MD_METH           0x01
  19 # define OBJ_NAME_TYPE_CIPHER_METH       0x02
  20 # define OBJ_NAME_TYPE_PKEY_METH         0x03
  21 # define OBJ_NAME_TYPE_COMP_METH         0x04
  22 # define OBJ_NAME_TYPE_NUM               0x05
  23
  24 # define OBJ_NAME_ALIAS                  0x8000
  25
  26 # define OBJ_BSEARCH_VALUE_ON_NOMATCH            0x01
  27 # define OBJ_BSEARCH_FIRST_VALUE_ON_MATCH        0x02
  28
  29
  30 #ifdef  __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 typedef struct obj_name_st {
  35     int type;
  36     int alias;
  37     const char *name;
  38     const char *data;
  39 } OBJ_NAME;
  40
  41 # define         OBJ_create_and_add_object(a,b,c) OBJ_create(a,b,c)
  42
  43 int OBJ_NAME_init(void);
  44 int OBJ_NAME_new_index(unsigned long (*hash_func) (const char *),
  45                        int (*cmp_func) (const char *, const char *),
  46                        void (*free_func) (const char *, int, const char *));
  47 const char *OBJ_NAME_get(const char *name, int type);
  48 int OBJ_NAME_add(const char *name, int type, const char *data);
  49 int OBJ_NAME_remove(const char *name, int type);
  50 void OBJ_NAME_cleanup(int type); /* -1 for everything */
  51 void OBJ_NAME_do_all(int type, void (*fn) (const OBJ_NAME *, void *arg),
  52                      void *arg);
  53 void OBJ_NAME_do_all_sorted(int type,
  54                             void (*fn) (const OBJ_NAME *, void *arg),
  55                             void *arg);
  56
  57 ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o);
  58 ASN1_OBJECT *OBJ_nid2obj(int n);
  59 const char *OBJ_nid2ln(int n);
  60 const char *OBJ_nid2sn(int n);
  61 int OBJ_obj2nid(const ASN1_OBJECT *o);
  62 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name);
  63 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name);
  64 int OBJ_txt2nid(const char *s);
  65 int OBJ_ln2nid(const char *s);
  66 int OBJ_sn2nid(const char *s);
  67 int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b);
  68 const void *OBJ_bsearch_(const void *key, const void *base, int num, int size,
  69                          int (*cmp) (const void *, const void *));
  70 const void *OBJ_bsearch_ex_(const void *key, const void *base, int num,
  71                             int size,
  72                             int (*cmp) (const void *, const void *),
  73                             int flags);
  74
  75 # define _DECLARE_OBJ_BSEARCH_CMP_FN(scope, type1, type2, nm)    \
  76   static int nm##_cmp_BSEARCH_CMP_FN(const void *, const void *); \
  77   static int nm##_cmp(type1 const *, type2 const *); \
  78   scope type2 * OBJ_bsearch_##nm(type1 *key, type2 const *base, int num)
  79
  80 # define DECLARE_OBJ_BSEARCH_CMP_FN(type1, type2, cmp)   \
  81   _DECLARE_OBJ_BSEARCH_CMP_FN(static, type1, type2, cmp)
  82 # define DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(type1, type2, nm)     \
  83   type2 * OBJ_bsearch_##nm(type1 *key, type2 const *base, int num)
  84
  85 /*-
  86  * Unsolved problem: if a type is actually a pointer type, like
  87  * nid_triple is, then its impossible to get a const where you need
  88  * it. Consider:
  89  *
  90  * typedef int nid_triple[3];
  91  * const void *a_;
  92  * const nid_triple const *a = a_;
  93  *
  94  * The assignment discards a const because what you really want is:
  95  *
  96  * const int const * const *a = a_;
  97  *
  98  * But if you do that, you lose the fact that a is an array of 3 ints,
  99  * which breaks comparison functions.
 100  *
 101  * Thus we end up having to cast, sadly, or unpack the
 102  * declarations. Or, as I finally did in this case, declare nid_triple
 103  * to be a struct, which it should have been in the first place.
 104  *
 105  * Ben, August 2008.
 106  *
 107  * Also, strictly speaking not all types need be const, but handling
 108  * the non-constness means a lot of complication, and in practice
 109  * comparison routines do always not touch their arguments.
 110  */
 111
 112 # define IMPLEMENT_OBJ_BSEARCH_CMP_FN(type1, type2, nm)  \
 113   static int nm##_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)    \
 114       { \
 115       type1 const *a = a_; \
 116       type2 const *b = b_; \
 117       return nm##_cmp(a,b); \
 118       } \
 119   static type2 *OBJ_bsearch_##nm(type1 *key, type2 const *base, int num) \
 120       { \
 121       return (type2 *)OBJ_bsearch_(key, base, num, sizeof(type2), \
 122                                         nm##_cmp_BSEARCH_CMP_FN); \
 123       } \
 124       extern void dummy_prototype(void)
 125
 126 # define IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(type1, type2, nm)   \
 127   static int nm##_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)    \
 128       { \
 129       type1 const *a = a_; \
 130       type2 const *b = b_; \
 131       return nm##_cmp(a,b); \
 132       } \
 133   type2 *OBJ_bsearch_##nm(type1 *key, type2 const *base, int num) \
 134       { \
 135       return (type2 *)OBJ_bsearch_(key, base, num, sizeof(type2), \
 136                                         nm##_cmp_BSEARCH_CMP_FN); \
 137       } \
 138       extern void dummy_prototype(void)
 139
 140 # define OBJ_bsearch(type1,key,type2,base,num,cmp)                              \
 141   ((type2 *)OBJ_bsearch_(CHECKED_PTR_OF(type1,key),CHECKED_PTR_OF(type2,base), \
 142                          num,sizeof(type2),                             \
 143                          ((void)CHECKED_PTR_OF(type1,cmp##_type_1),     \
 144                           (void)CHECKED_PTR_OF(type2,cmp##_type_2),     \
 145                           cmp##_BSEARCH_CMP_FN)))
 146
 147 # define OBJ_bsearch_ex(type1,key,type2,base,num,cmp,flags)                      \
 148   ((type2 *)OBJ_bsearch_ex_(CHECKED_PTR_OF(type1,key),CHECKED_PTR_OF(type2,base), \
 149                          num,sizeof(type2),                             \
 150                          ((void)CHECKED_PTR_OF(type1,cmp##_type_1),     \
 151                           (void)type_2=CHECKED_PTR_OF(type2,cmp##_type_2), \
 152                           cmp##_BSEARCH_CMP_FN)),flags)
 153
 154 int OBJ_new_nid(int num);
 155 int OBJ_add_object(const ASN1_OBJECT *obj);
 156 int OBJ_create(const char *oid, const char *sn, const char *ln);
 157 #if OPENSSL_API_COMPAT < 0x10100000L
 158 # define OBJ_cleanup() while(0) continue
 159 #endif
 160 int OBJ_create_objects(BIO *in);
 161
 162 size_t OBJ_length(const ASN1_OBJECT *obj);
 163 const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj);
 164
 165 int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid);
 166 int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid);
 167 int OBJ_add_sigid(int signid, int dig_id, int pkey_id);
 168 void OBJ_sigid_free(void);
 169
 170 /* BEGIN ERROR CODES */
 171 /*
 172  * The following lines are auto generated by the script mkerr.pl. Any changes
 173  * made after this point may be overwritten when the script is next run.
 174  */
 175
 176 int ERR_load_OBJ_strings(void);
 177
 178 /* Error codes for the OBJ functions. */
 179
 180 /* Function codes. */
 181 # define OBJ_F_OBJ_ADD_OBJECT                             105
 182 # define OBJ_F_OBJ_CREATE                                 100
 183 # define OBJ_F_OBJ_DUP                                    101
 184 # define OBJ_F_OBJ_NAME_NEW_INDEX                         106
 185 # define OBJ_F_OBJ_NID2LN                                 102
 186 # define OBJ_F_OBJ_NID2OBJ                                103
 187 # define OBJ_F_OBJ_NID2SN                                 104
 188
 189 /* Reason codes. */
 190 # define OBJ_R_OID_EXISTS                                 102
 191 # define OBJ_R_UNKNOWN_NID                                101
 192
 193 # ifdef  __cplusplus
 194 }
 195 # endif
 196 #endif