aboutsummaryrefslogtreecommitdiff
path: root/include/internal/cryptlib.h
blob: 1291299b6e50ea129ba77c85bb0b21b0997e4494 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
/*
 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OSSL_INTERNAL_CRYPTLIB_H
# define OSSL_INTERNAL_CRYPTLIB_H
# pragma once

# include <stdlib.h>
# include <string.h>

# ifdef OPENSSL_USE_APPLINK
#  define BIO_FLAGS_UPLINK_INTERNAL 0x8000
#  include "ms/uplink.h"
# else
#  define BIO_FLAGS_UPLINK_INTERNAL 0
# endif

# include <openssl/crypto.h>
# include <openssl/buffer.h>
# include <openssl/bio.h>
# include <openssl/asn1.h>
# include <openssl/err.h>
# include "internal/nelem.h"

#ifdef NDEBUG
# define ossl_assert(x) ((x) != 0)
#else
__owur static ossl_inline int ossl_assert_int(int expr, const char *exprstr,
                                              const char *file, int line)
{
    if (!expr)
        OPENSSL_die(exprstr, file, line);

    return expr;
}

# define ossl_assert(x) ossl_assert_int((x) != 0, "Assertion failed: "#x, \
                                         __FILE__, __LINE__)

#endif

/*
 * Use this inside a union with the field that needs to be aligned to a
 * reasonable boundary for the platform.  The most pessimistic alignment
 * of the listed types will be used by the compiler.
 */
# define OSSL_UNION_ALIGN       \
    double align;               \
    ossl_uintmax_t align_int;   \
    void *align_ptr

typedef struct ex_callback_st EX_CALLBACK;
DEFINE_STACK_OF(EX_CALLBACK)

typedef struct mem_st MEM;
DEFINE_LHASH_OF(MEM);

# define OPENSSL_CONF             "openssl.cnf"

# ifndef OPENSSL_SYS_VMS
#  define X509_CERT_AREA          OPENSSLDIR
#  define X509_CERT_DIR           OPENSSLDIR "/certs"
#  define X509_CERT_FILE          OPENSSLDIR "/cert.pem"
#  define X509_PRIVATE_DIR        OPENSSLDIR "/private"
#  define CTLOG_FILE              OPENSSLDIR "/ct_log_list.cnf"
# else
#  define X509_CERT_AREA          "OSSL$DATAROOT:[000000]"
#  define X509_CERT_DIR           "OSSL$DATAROOT:[CERTS]"
#  define X509_CERT_FILE          "OSSL$DATAROOT:[000000]cert.pem"
#  define X509_PRIVATE_DIR        "OSSL$DATAROOT:[PRIVATE]"
#  define CTLOG_FILE              "OSSL$DATAROOT:[000000]ct_log_list.cnf"
# endif

# define X509_CERT_DIR_EVP        "SSL_CERT_DIR"
# define X509_CERT_FILE_EVP       "SSL_CERT_FILE"
# define CTLOG_FILE_EVP           "CTLOG_FILE"

/* size of string representations */
# define DECIMAL_SIZE(type)      ((sizeof(type)*8+2)/3+1)
# define HEX_SIZE(type)          (sizeof(type)*2)

void OPENSSL_cpuid_setup(void);
#if defined(__i386)   || defined(__i386__)   || defined(_M_IX86) || \
    defined(__x86_64) || defined(__x86_64__) || \
    defined(_M_AMD64) || defined(_M_X64)
extern unsigned int OPENSSL_ia32cap_P[];
#endif
void OPENSSL_showfatal(const char *fmta, ...);
int ossl_do_ex_data_init(OSSL_LIB_CTX *ctx);
void ossl_crypto_cleanup_all_ex_data_int(OSSL_LIB_CTX *ctx);
int openssl_init_fork_handlers(void);
int openssl_get_fork_id(void);

char *ossl_safe_getenv(const char *name);

extern CRYPTO_RWLOCK *memdbg_lock;
int openssl_strerror_r(int errnum, char *buf, size_t buflen);
# if !defined(OPENSSL_NO_STDIO)
FILE *openssl_fopen(const char *filename, const char *mode);
# else
void *openssl_fopen(const char *filename, const char *mode);
# endif

uint32_t OPENSSL_rdtsc(void);
size_t OPENSSL_instrument_bus(unsigned int *, size_t);
size_t OPENSSL_instrument_bus2(unsigned int *, size_t, size_t);

/* ex_data structures */

/*
 * Each structure type (sometimes called a class), that supports
 * exdata has a stack of callbacks for each instance.
 */
struct ex_callback_st {
    long argl;                  /* Arbitrary long */
    void *argp;                 /* Arbitrary void * */
    int priority;               /* Priority ordering for freeing */
    CRYPTO_EX_new *new_func;
    CRYPTO_EX_free *free_func;
    CRYPTO_EX_dup *dup_func;
};

/*
 * The state for each class.  This could just be a typedef, but
 * a structure allows future changes.
 */
typedef struct ex_callbacks_st {
    STACK_OF(EX_CALLBACK) *meth;
} EX_CALLBACKS;

typedef struct ossl_ex_data_global_st {
    CRYPTO_RWLOCK *ex_data_lock;
    EX_CALLBACKS ex_data[CRYPTO_EX_INDEX__COUNT];
} OSSL_EX_DATA_GLOBAL;


/* OSSL_LIB_CTX */

# define OSSL_LIB_CTX_PROVIDER_STORE_RUN_ONCE_INDEX          0
# define OSSL_LIB_CTX_DEFAULT_METHOD_STORE_RUN_ONCE_INDEX    1
# define OSSL_LIB_CTX_METHOD_STORE_RUN_ONCE_INDEX            2
# define OSSL_LIB_CTX_MAX_RUN_ONCE                           3

# define OSSL_LIB_CTX_EVP_METHOD_STORE_INDEX         0
# define OSSL_LIB_CTX_PROVIDER_STORE_INDEX           1
# define OSSL_LIB_CTX_PROPERTY_DEFN_INDEX            2
# define OSSL_LIB_CTX_PROPERTY_STRING_INDEX          3
# define OSSL_LIB_CTX_NAMEMAP_INDEX                  4
# define OSSL_LIB_CTX_DRBG_INDEX                     5
# define OSSL_LIB_CTX_DRBG_NONCE_INDEX               6
# define OSSL_LIB_CTX_RAND_CRNGT_INDEX               7
# ifdef FIPS_MODULE
#  define OSSL_LIB_CTX_THREAD_EVENT_HANDLER_INDEX    8
# endif
# define OSSL_LIB_CTX_FIPS_PROV_INDEX                9
# define OSSL_LIB_CTX_ENCODER_STORE_INDEX           10
# define OSSL_LIB_CTX_DECODER_STORE_INDEX           11
# define OSSL_LIB_CTX_SELF_TEST_CB_INDEX            12
# define OSSL_LIB_CTX_BIO_PROV_INDEX                13
# define OSSL_LIB_CTX_GLOBAL_PROPERTIES             14
# define OSSL_LIB_CTX_STORE_LOADER_STORE_INDEX      15
# define OSSL_LIB_CTX_PROVIDER_CONF_INDEX           16
# define OSSL_LIB_CTX_BIO_CORE_INDEX                17
# define OSSL_LIB_CTX_CHILD_PROVIDER_INDEX          18
# define OSSL_LIB_CTX_MAX_INDEXES                   19

# define OSSL_LIB_CTX_METHOD_LOW_PRIORITY          -1
# define OSSL_LIB_CTX_METHOD_DEFAULT_PRIORITY       0
# define OSSL_LIB_CTX_METHOD_PRIORITY_1             1
# define OSSL_LIB_CTX_METHOD_PRIORITY_2             2

typedef struct ossl_lib_ctx_method {
    int priority;
    void *(*new_func)(OSSL_LIB_CTX *ctx);
    void (*free_func)(void *);
} OSSL_LIB_CTX_METHOD;

OSSL_LIB_CTX *ossl_lib_ctx_get_concrete(OSSL_LIB_CTX *ctx);
int ossl_lib_ctx_is_default(OSSL_LIB_CTX *ctx);
int ossl_lib_ctx_is_global_default(OSSL_LIB_CTX *ctx);

/* Functions to retrieve pointers to data by index */
void *ossl_lib_ctx_get_data(OSSL_LIB_CTX *, int /* index */,
                            const OSSL_LIB_CTX_METHOD * ctx);

void ossl_lib_ctx_default_deinit(void);
OSSL_EX_DATA_GLOBAL *ossl_lib_ctx_get_ex_data_global(OSSL_LIB_CTX *ctx);
typedef int (ossl_lib_ctx_run_once_fn)(OSSL_LIB_CTX *ctx);
typedef void (ossl_lib_ctx_onfree_fn)(OSSL_LIB_CTX *ctx);

int ossl_lib_ctx_run_once(OSSL_LIB_CTX *ctx, unsigned int idx,
                          ossl_lib_ctx_run_once_fn run_once_fn);
int ossl_lib_ctx_onfree(OSSL_LIB_CTX *ctx, ossl_lib_ctx_onfree_fn onfreefn);
const char *ossl_lib_ctx_get_descriptor(OSSL_LIB_CTX *libctx);

OSSL_LIB_CTX *ossl_crypto_ex_data_get_ossl_lib_ctx(const CRYPTO_EX_DATA *ad);
int ossl_crypto_new_ex_data_ex(OSSL_LIB_CTX *ctx, int class_index, void *obj,
                               CRYPTO_EX_DATA *ad);
int ossl_crypto_get_ex_new_index_ex(OSSL_LIB_CTX *ctx, int class_index,
                                    long argl, void *argp,
                                    CRYPTO_EX_new *new_func,
                                    CRYPTO_EX_dup *dup_func,
                                    CRYPTO_EX_free *free_func,
                                    int priority);
int ossl_crypto_free_ex_index_ex(OSSL_LIB_CTX *ctx, int class_index, int idx);

/* Function for simple binary search */

/* Flags */
# define OSSL_BSEARCH_VALUE_ON_NOMATCH            0x01
# define OSSL_BSEARCH_FIRST_VALUE_ON_MATCH        0x02

const void *ossl_bsearch(const void *key, const void *base, int num,
                         int size, int (*cmp) (const void *, const void *),
                         int flags);

char *ossl_sk_ASN1_UTF8STRING2text(STACK_OF(ASN1_UTF8STRING) *text,
                                   const char *sep, size_t max_len);
char *ossl_ipaddr_to_asc(unsigned char *p, int len);

char *ossl_buf2hexstr_sep(const unsigned char *buf, long buflen, char sep);
unsigned char *ossl_hexstr2buf_sep(const char *str, long *buflen,
                                   const char sep);

static ossl_inline int ossl_ends_with_dirsep(const char *path)
{
    if (*path != '\0')
        path += strlen(path) - 1;
# if defined __VMS
    if (*path == ']' || *path == '>' || *path == ':')
        return 1;
# elif defined _WIN32
    if (*path == '\\')
        return 1;
# endif
    return *path == '/';
}

static ossl_inline int ossl_is_absolute_path(const char *path)
{
# if defined __VMS
    if (strchr(path, ':') != NULL
        || ((path[0] == '[' || path[0] == '<')
            && path[1] != '.' && path[1] != '-'
            && path[1] != ']' && path[1] != '>'))
        return 1;
# elif defined _WIN32
    if (path[0] == '\\'
        || (path[0] != '\0' && path[1] == ':'))
        return 1;
# endif
    return path[0] == '/';
}

#endif