| 1 | /*
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| 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #ifndef OSSL_INTERNAL_CRYPTLIB_H
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| 11 | # define OSSL_INTERNAL_CRYPTLIB_H
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| 12 | # pragma once
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| 13 |
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| 14 | # include <stdlib.h>
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| 15 | # include <string.h>
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| 16 |
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| 17 | # ifdef OPENSSL_USE_APPLINK
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| 18 | # define BIO_FLAGS_UPLINK_INTERNAL 0x8000
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| 19 | # include "ms/uplink.h"
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| 20 | # else
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| 21 | # define BIO_FLAGS_UPLINK_INTERNAL 0
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| 22 | # endif
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| 23 |
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| 24 | # include <openssl/crypto.h>
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| 25 | # include <openssl/buffer.h>
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| 26 | # include <openssl/bio.h>
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| 27 | # include <openssl/asn1.h>
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| 28 | # include <openssl/err.h>
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| 29 | # include "internal/nelem.h"
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| 30 |
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| 31 | #ifdef NDEBUG
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| 32 | # define ossl_assert(x) ((x) != 0)
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| 33 | #else
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| 34 | __owur static ossl_inline int ossl_assert_int(int expr, const char *exprstr,
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| 35 | const char *file, int line)
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| 36 | {
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| 37 | if (!expr)
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| 38 | OPENSSL_die(exprstr, file, line);
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| 39 |
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| 40 | return expr;
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| 41 | }
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| 42 |
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| 43 | # define ossl_assert(x) ossl_assert_int((x) != 0, "Assertion failed: "#x, \
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| 44 | __FILE__, __LINE__)
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| 45 |
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| 46 | #endif
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| 47 |
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| 48 | /*
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| 49 | * Use this inside a union with the field that needs to be aligned to a
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| 50 | * reasonable boundary for the platform. The most pessimistic alignment
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| 51 | * of the listed types will be used by the compiler.
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| 52 | */
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| 53 | # define OSSL_UNION_ALIGN \
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| 54 | double align; \
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| 55 | ossl_uintmax_t align_int; \
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| 56 | void *align_ptr
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| 57 |
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| 58 | typedef struct ex_callback_st EX_CALLBACK;
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| 59 | DEFINE_STACK_OF(EX_CALLBACK)
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| 60 |
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| 61 | typedef struct mem_st MEM;
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| 62 | DEFINE_LHASH_OF(MEM);
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| 63 |
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| 64 | #define OPENSSLDIR "/usr/local/ssl"
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| 65 |
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| 66 | # define OPENSSL_CONF "openssl.cnf"
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| 67 |
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| 68 | # ifndef OPENSSL_SYS_VMS
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| 69 | # define X509_CERT_AREA OPENSSLDIR
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| 70 | # define X509_CERT_DIR OPENSSLDIR "/certs"
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| 71 | # define X509_CERT_FILE OPENSSLDIR "/cert.pem"
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| 72 | # define X509_PRIVATE_DIR OPENSSLDIR "/private"
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| 73 | # define CTLOG_FILE OPENSSLDIR "/ct_log_list.cnf"
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| 74 | # else
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| 75 | # define X509_CERT_AREA "OSSL$DATAROOT:[000000]"
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| 76 | # define X509_CERT_DIR "OSSL$DATAROOT:[CERTS]"
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| 77 | # define X509_CERT_FILE "OSSL$DATAROOT:[000000]cert.pem"
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| 78 | # define X509_PRIVATE_DIR "OSSL$DATAROOT:[PRIVATE]"
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| 79 | # define CTLOG_FILE "OSSL$DATAROOT:[000000]ct_log_list.cnf"
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| 80 | # endif
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| 81 |
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| 82 | # define X509_CERT_DIR_EVP "SSL_CERT_DIR"
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| 83 | # define X509_CERT_FILE_EVP "SSL_CERT_FILE"
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| 84 | # define CTLOG_FILE_EVP "CTLOG_FILE"
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| 85 |
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| 86 | /* size of string representations */
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| 87 | # define DECIMAL_SIZE(type) ((sizeof(type)*8+2)/3+1)
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| 88 | # define HEX_SIZE(type) (sizeof(type)*2)
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| 89 |
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| 90 | void OPENSSL_cpuid_setup(void);
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| 91 | #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
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| 92 | defined(__x86_64) || defined(__x86_64__) || \
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| 93 | defined(_M_AMD64) || defined(_M_X64)
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| 94 | extern unsigned int OPENSSL_ia32cap_P[];
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| 95 | #endif
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| 96 | void OPENSSL_showfatal(const char *fmta, ...);
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| 97 | int ossl_do_ex_data_init(OSSL_LIB_CTX *ctx);
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| 98 | void ossl_crypto_cleanup_all_ex_data_int(OSSL_LIB_CTX *ctx);
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| 99 | int openssl_init_fork_handlers(void);
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| 100 | int openssl_get_fork_id(void);
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| 101 |
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| 102 | char *ossl_safe_getenv(const char *name);
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| 103 |
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| 104 | extern CRYPTO_RWLOCK *memdbg_lock;
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| 105 | int openssl_strerror_r(int errnum, char *buf, size_t buflen);
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| 106 | # if !defined(OPENSSL_NO_STDIO)
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| 107 | FILE *openssl_fopen(const char *filename, const char *mode);
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| 108 | # else
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| 109 | void *openssl_fopen(const char *filename, const char *mode);
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| 110 | # endif
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| 111 |
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| 112 | uint32_t OPENSSL_rdtsc(void);
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| 113 | size_t OPENSSL_instrument_bus(unsigned int *, size_t);
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| 114 | size_t OPENSSL_instrument_bus2(unsigned int *, size_t, size_t);
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| 115 |
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| 116 | /* ex_data structures */
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| 117 |
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| 118 | /*
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| 119 | * Each structure type (sometimes called a class), that supports
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| 120 | * exdata has a stack of callbacks for each instance.
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| 121 | */
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| 122 | struct ex_callback_st {
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| 123 | long argl; /* Arbitrary long */
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| 124 | void *argp; /* Arbitrary void * */
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| 125 | int priority; /* Priority ordering for freeing */
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| 126 | CRYPTO_EX_new *new_func;
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| 127 | CRYPTO_EX_free *free_func;
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| 128 | CRYPTO_EX_dup *dup_func;
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| 129 | };
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| 130 |
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| 131 | /*
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| 132 | * The state for each class. This could just be a typedef, but
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| 133 | * a structure allows future changes.
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| 134 | */
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| 135 | typedef struct ex_callbacks_st {
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| 136 | STACK_OF(EX_CALLBACK) *meth;
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| 137 | } EX_CALLBACKS;
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| 138 |
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| 139 | typedef struct ossl_ex_data_global_st {
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| 140 | CRYPTO_RWLOCK *ex_data_lock;
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| 141 | EX_CALLBACKS ex_data[CRYPTO_EX_INDEX__COUNT];
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| 142 | } OSSL_EX_DATA_GLOBAL;
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| 143 |
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| 144 |
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| 145 | /* OSSL_LIB_CTX */
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| 146 |
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| 147 | # define OSSL_LIB_CTX_PROVIDER_STORE_RUN_ONCE_INDEX 0
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| 148 | # define OSSL_LIB_CTX_DEFAULT_METHOD_STORE_RUN_ONCE_INDEX 1
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| 149 | # define OSSL_LIB_CTX_METHOD_STORE_RUN_ONCE_INDEX 2
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| 150 | # define OSSL_LIB_CTX_MAX_RUN_ONCE 3
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| 151 |
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| 152 | # define OSSL_LIB_CTX_EVP_METHOD_STORE_INDEX 0
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| 153 | # define OSSL_LIB_CTX_PROVIDER_STORE_INDEX 1
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| 154 | # define OSSL_LIB_CTX_PROPERTY_DEFN_INDEX 2
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| 155 | # define OSSL_LIB_CTX_PROPERTY_STRING_INDEX 3
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| 156 | # define OSSL_LIB_CTX_NAMEMAP_INDEX 4
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| 157 | # define OSSL_LIB_CTX_DRBG_INDEX 5
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| 158 | # define OSSL_LIB_CTX_DRBG_NONCE_INDEX 6
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| 159 | # define OSSL_LIB_CTX_RAND_CRNGT_INDEX 7
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| 160 | # ifdef FIPS_MODULE
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| 161 | # define OSSL_LIB_CTX_THREAD_EVENT_HANDLER_INDEX 8
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| 162 | # endif
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| 163 | # define OSSL_LIB_CTX_FIPS_PROV_INDEX 9
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| 164 | # define OSSL_LIB_CTX_ENCODER_STORE_INDEX 10
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| 165 | # define OSSL_LIB_CTX_DECODER_STORE_INDEX 11
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| 166 | # define OSSL_LIB_CTX_SELF_TEST_CB_INDEX 12
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| 167 | # define OSSL_LIB_CTX_BIO_PROV_INDEX 13
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| 168 | # define OSSL_LIB_CTX_GLOBAL_PROPERTIES 14
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| 169 | # define OSSL_LIB_CTX_STORE_LOADER_STORE_INDEX 15
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| 170 | # define OSSL_LIB_CTX_PROVIDER_CONF_INDEX 16
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| 171 | # define OSSL_LIB_CTX_BIO_CORE_INDEX 17
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| 172 | # define OSSL_LIB_CTX_CHILD_PROVIDER_INDEX 18
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| 173 | # define OSSL_LIB_CTX_MAX_INDEXES 19
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| 174 |
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| 175 | # define OSSL_LIB_CTX_METHOD_LOW_PRIORITY -1
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| 176 | # define OSSL_LIB_CTX_METHOD_DEFAULT_PRIORITY 0
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| 177 | # define OSSL_LIB_CTX_METHOD_PRIORITY_1 1
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| 178 | # define OSSL_LIB_CTX_METHOD_PRIORITY_2 2
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| 179 |
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| 180 | typedef struct ossl_lib_ctx_method {
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| 181 | int priority;
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| 182 | void *(*new_func)(OSSL_LIB_CTX *ctx);
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| 183 | void (*free_func)(void *);
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| 184 | } OSSL_LIB_CTX_METHOD;
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| 185 |
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| 186 | OSSL_LIB_CTX *ossl_lib_ctx_get_concrete(OSSL_LIB_CTX *ctx);
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| 187 | int ossl_lib_ctx_is_default(OSSL_LIB_CTX *ctx);
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| 188 | int ossl_lib_ctx_is_global_default(OSSL_LIB_CTX *ctx);
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| 189 |
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| 190 | /* Functions to retrieve pointers to data by index */
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| 191 | void *ossl_lib_ctx_get_data(OSSL_LIB_CTX *, int /* index */,
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| 192 | const OSSL_LIB_CTX_METHOD * ctx);
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| 193 |
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| 194 | void ossl_lib_ctx_default_deinit(void);
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| 195 | OSSL_EX_DATA_GLOBAL *ossl_lib_ctx_get_ex_data_global(OSSL_LIB_CTX *ctx);
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| 196 | typedef int (ossl_lib_ctx_run_once_fn)(OSSL_LIB_CTX *ctx);
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| 197 | typedef void (ossl_lib_ctx_onfree_fn)(OSSL_LIB_CTX *ctx);
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| 198 |
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| 199 | int ossl_lib_ctx_run_once(OSSL_LIB_CTX *ctx, unsigned int idx,
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| 200 | ossl_lib_ctx_run_once_fn run_once_fn);
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| 201 | int ossl_lib_ctx_onfree(OSSL_LIB_CTX *ctx, ossl_lib_ctx_onfree_fn onfreefn);
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| 202 | const char *ossl_lib_ctx_get_descriptor(OSSL_LIB_CTX *libctx);
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| 203 |
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| 204 | OSSL_LIB_CTX *ossl_crypto_ex_data_get_ossl_lib_ctx(const CRYPTO_EX_DATA *ad);
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| 205 | int ossl_crypto_new_ex_data_ex(OSSL_LIB_CTX *ctx, int class_index, void *obj,
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| 206 | CRYPTO_EX_DATA *ad);
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| 207 | int ossl_crypto_get_ex_new_index_ex(OSSL_LIB_CTX *ctx, int class_index,
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| 208 | long argl, void *argp,
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| 209 | CRYPTO_EX_new *new_func,
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| 210 | CRYPTO_EX_dup *dup_func,
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| 211 | CRYPTO_EX_free *free_func,
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| 212 | int priority);
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| 213 | int ossl_crypto_free_ex_index_ex(OSSL_LIB_CTX *ctx, int class_index, int idx);
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| 214 |
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| 215 | /* Function for simple binary search */
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| 216 |
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| 217 | /* Flags */
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| 218 | # define OSSL_BSEARCH_VALUE_ON_NOMATCH 0x01
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| 219 | # define OSSL_BSEARCH_FIRST_VALUE_ON_MATCH 0x02
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| 220 |
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| 221 | const void *ossl_bsearch(const void *key, const void *base, int num,
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| 222 | int size, int (*cmp) (const void *, const void *),
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| 223 | int flags);
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| 224 |
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| 225 | char *ossl_sk_ASN1_UTF8STRING2text(STACK_OF(ASN1_UTF8STRING) *text,
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| 226 | const char *sep, size_t max_len);
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| 227 | char *ossl_ipaddr_to_asc(unsigned char *p, int len);
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| 228 |
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| 229 | char *ossl_buf2hexstr_sep(const unsigned char *buf, long buflen, char sep);
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| 230 | unsigned char *ossl_hexstr2buf_sep(const char *str, long *buflen,
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| 231 | const char sep);
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| 232 |
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| 233 | static ossl_inline int ossl_ends_with_dirsep(const char *path)
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| 234 | {
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| 235 | if (*path != '\0')
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| 236 | path += strlen(path) - 1;
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| 237 | # if defined __VMS
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| 238 | if (*path == ']' || *path == '>' || *path == ':')
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| 239 | return 1;
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| 240 | # elif defined _WIN32
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| 241 | if (*path == '\\')
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| 242 | return 1;
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| 243 | # endif
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| 244 | return *path == '/';
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| 245 | }
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| 246 |
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| 247 | static ossl_inline int ossl_is_absolute_path(const char *path)
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| 248 | {
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| 249 | # if defined __VMS
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| 250 | if (strchr(path, ':') != NULL
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| 251 | || ((path[0] == '[' || path[0] == '<')
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| 252 | && path[1] != '.' && path[1] != '-'
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| 253 | && path[1] != ']' && path[1] != '>'))
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| 254 | return 1;
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| 255 | # elif defined _WIN32
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| 256 | if (path[0] == '\\'
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| 257 | || (path[0] != '\0' && path[1] == ':'))
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| 258 | return 1;
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| 259 | # endif
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| 260 | return path[0] == '/';
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| 261 | }
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| 262 |
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| 263 | #endif
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