include/internal/cryptlib.h

   1 /*
   2  * Copyright 1995-2019 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 OSSL_INTERNAL_CRYPTLIB_H
  11 # define OSSL_INTERNAL_CRYPTLIB_H
  12
  13 # include <stdlib.h>
  14 # include <string.h>
  15
  16 # ifdef OPENSSL_USE_APPLINK
  17 #  define BIO_FLAGS_UPLINK_INTERNAL 0x8000
  18 #  include "ms/uplink.h"
  19 # else
  20 #  define BIO_FLAGS_UPLINK_INTERNAL 0
  21 # endif
  22
  23 # include <openssl/crypto.h>
  24 # include <openssl/buffer.h>
  25 # include <openssl/bio.h>
  26 # include <openssl/err.h>
  27 # include "internal/nelem.h"
  28
  29 #ifdef NDEBUG
  30 # define ossl_assert(x) ((x) != 0)
  31 #else
  32 __owur static ossl_inline int ossl_assert_int(int expr, const char *exprstr,
  33                                               const char *file, int line)
  34 {
  35     if (!expr)
  36         OPENSSL_die(exprstr, file, line);
  37
  38     return expr;
  39 }
  40
  41 # define ossl_assert(x) ossl_assert_int((x) != 0, "Assertion failed: "#x, \
  42                                          __FILE__, __LINE__)
  43
  44 #endif
  45
  46 /*
  47  * Use this inside a union with the field that needs to be aligned to a
  48  * reasonable boundary for the platform.  The most pessimistic alignment
  49  * of the listed types will be used by the compiler.
  50  */
  51 # define OSSL_UNION_ALIGN       \
  52     double align;               \
  53     ossl_uintmax_t align_int;   \
  54     void *align_ptr
  55
  56 typedef struct ex_callback_st EX_CALLBACK;
  57 DEFINE_STACK_OF(EX_CALLBACK)
  58
  59 typedef struct mem_st MEM;
  60 DEFINE_LHASH_OF(MEM);
  61
  62 # define OPENSSL_CONF             "openssl.cnf"
  63
  64 # ifndef OPENSSL_SYS_VMS
  65 #  define X509_CERT_AREA          OPENSSLDIR
  66 #  define X509_CERT_DIR           OPENSSLDIR "/certs"
  67 #  define X509_CERT_FILE          OPENSSLDIR "/cert.pem"
  68 #  define X509_PRIVATE_DIR        OPENSSLDIR "/private"
  69 #  define CTLOG_FILE              OPENSSLDIR "/ct_log_list.cnf"
  70 # else
  71 #  define X509_CERT_AREA          "OSSL$DATAROOT:[000000]"
  72 #  define X509_CERT_DIR           "OSSL$DATAROOT:[CERTS]"
  73 #  define X509_CERT_FILE          "OSSL$DATAROOT:[000000]cert.pem"
  74 #  define X509_PRIVATE_DIR        "OSSL$DATAROOT:[PRIVATE]"
  75 #  define CTLOG_FILE              "OSSL$DATAROOT:[000000]ct_log_list.cnf"
  76 # endif
  77
  78 # define X509_CERT_DIR_EVP        "SSL_CERT_DIR"
  79 # define X509_CERT_FILE_EVP       "SSL_CERT_FILE"
  80 # define CTLOG_FILE_EVP           "CTLOG_FILE"
  81
  82 /* size of string representations */
  83 # define DECIMAL_SIZE(type)      ((sizeof(type)*8+2)/3+1)
  84 # define HEX_SIZE(type)          (sizeof(type)*2)
  85
  86 void OPENSSL_cpuid_setup(void);
  87 #if defined(__i386)   || defined(__i386__)   || defined(_M_IX86) || \
  88     defined(__x86_64) || defined(__x86_64__) || \
  89     defined(_M_AMD64) || defined(_M_X64)
  90 extern unsigned int OPENSSL_ia32cap_P[];
  91 #endif
  92 void OPENSSL_showfatal(const char *fmta, ...);
  93 int do_ex_data_init(OPENSSL_CTX *ctx);
  94 void crypto_cleanup_all_ex_data_int(OPENSSL_CTX *ctx);
  95 int openssl_init_fork_handlers(void);
  96 int openssl_get_fork_id(void);
  97
  98 char *ossl_safe_getenv(const char *name);
  99
 100 extern CRYPTO_RWLOCK *memdbg_lock;
 101 int openssl_strerror_r(int errnum, char *buf, size_t buflen);
 102 # if !defined(OPENSSL_NO_STDIO)
 103 FILE *openssl_fopen(const char *filename, const char *mode);
 104 # else
 105 void *openssl_fopen(const char *filename, const char *mode);
 106 # endif
 107
 108 uint32_t OPENSSL_rdtsc(void);
 109 size_t OPENSSL_instrument_bus(unsigned int *, size_t);
 110 size_t OPENSSL_instrument_bus2(unsigned int *, size_t, size_t);
 111
 112 /* ex_data structures */
 113
 114 /*
 115  * Each structure type (sometimes called a class), that supports
 116  * exdata has a stack of callbacks for each instance.
 117  */
 118 struct ex_callback_st {
 119     long argl;                  /* Arbitrary long */
 120     void *argp;                 /* Arbitrary void * */
 121     CRYPTO_EX_new *new_func;
 122     CRYPTO_EX_free *free_func;
 123     CRYPTO_EX_dup *dup_func;
 124 };
 125
 126 /*
 127  * The state for each class.  This could just be a typedef, but
 128  * a structure allows future changes.
 129  */
 130 typedef struct ex_callbacks_st {
 131     STACK_OF(EX_CALLBACK) *meth;
 132 } EX_CALLBACKS;
 133
 134 typedef struct ossl_ex_data_global_st {
 135     CRYPTO_RWLOCK *ex_data_lock;
 136     EX_CALLBACKS ex_data[CRYPTO_EX_INDEX__COUNT];
 137 } OSSL_EX_DATA_GLOBAL;
 138
 139
 140 /* OPENSSL_CTX */
 141
 142 # define OPENSSL_CTX_PROVIDER_STORE_RUN_ONCE_INDEX          0
 143 # define OPENSSL_CTX_DEFAULT_METHOD_STORE_RUN_ONCE_INDEX    1
 144 # define OPENSSL_CTX_METHOD_STORE_RUN_ONCE_INDEX            2
 145 # define OPENSSL_CTX_MAX_RUN_ONCE                           3
 146
 147 # define OPENSSL_CTX_EVP_METHOD_STORE_INDEX         0
 148 # define OPENSSL_CTX_PROVIDER_STORE_INDEX           1
 149 # define OPENSSL_CTX_PROPERTY_DEFN_INDEX            2
 150 # define OPENSSL_CTX_PROPERTY_STRING_INDEX          3
 151 # define OPENSSL_CTX_NAMEMAP_INDEX                  4
 152 # define OPENSSL_CTX_DRBG_INDEX                     5
 153 # define OPENSSL_CTX_DRBG_NONCE_INDEX               6
 154 # define OPENSSL_CTX_RAND_CRNGT_INDEX               7
 155 # define OPENSSL_CTX_THREAD_EVENT_HANDLER_INDEX     8
 156 # define OPENSSL_CTX_FIPS_PROV_INDEX                9
 157 # define OPENSSL_CTX_SERIALIZER_STORE_INDEX        10
 158 # define OPENSSL_CTX_SELF_TEST_CB_INDEX            11
 159 # define OPENSSL_CTX_MAX_INDEXES                   12
 160
 161 typedef struct openssl_ctx_method {
 162     void *(*new_func)(OPENSSL_CTX *ctx);
 163     void (*free_func)(void *);
 164 } OPENSSL_CTX_METHOD;
 165
 166 OPENSSL_CTX *openssl_ctx_get_concrete(OPENSSL_CTX *ctx);
 167
 168 /* Functions to retrieve pointers to data by index */
 169 void *openssl_ctx_get_data(OPENSSL_CTX *, int /* index */,
 170                            const OPENSSL_CTX_METHOD * ctx);
 171
 172 void openssl_ctx_default_deinit(void);
 173 OSSL_EX_DATA_GLOBAL *openssl_ctx_get_ex_data_global(OPENSSL_CTX *ctx);
 174 typedef int (openssl_ctx_run_once_fn)(OPENSSL_CTX *ctx);
 175 typedef void (openssl_ctx_onfree_fn)(OPENSSL_CTX *ctx);
 176
 177 int openssl_ctx_run_once(OPENSSL_CTX *ctx, unsigned int idx,
 178                          openssl_ctx_run_once_fn run_once_fn);
 179 int openssl_ctx_onfree(OPENSSL_CTX *ctx, openssl_ctx_onfree_fn onfreefn);
 180
 181 OPENSSL_CTX *crypto_ex_data_get_openssl_ctx(const CRYPTO_EX_DATA *ad);
 182 int crypto_new_ex_data_ex(OPENSSL_CTX *ctx, int class_index, void *obj,
 183                           CRYPTO_EX_DATA *ad);
 184 int crypto_get_ex_new_index_ex(OPENSSL_CTX *ctx, int class_index,
 185                                long argl, void *argp,
 186                                CRYPTO_EX_new *new_func,
 187                                CRYPTO_EX_dup *dup_func,
 188                                CRYPTO_EX_free *free_func);
 189 int crypto_free_ex_index_ex(OPENSSL_CTX *ctx, int class_index, int idx);
 190
 191 /* Function for simple binary search */
 192
 193 /* Flags */
 194 # define OSSL_BSEARCH_VALUE_ON_NOMATCH            0x01
 195 # define OSSL_BSEARCH_FIRST_VALUE_ON_MATCH        0x02
 196
 197 const void *ossl_bsearch(const void *key, const void *base, int num,
 198                          int size, int (*cmp) (const void *, const void *),
 199                          int flags);
 200
 201 #endif