2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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
13 #include "internal/cryptlib_int.h"
14 #include "internal/err.h"
15 #include "internal/err_int.h"
16 #include <openssl/err.h>
17 #include <openssl/crypto.h>
18 #include <openssl/buffer.h>
19 #include <openssl/bio.h>
20 #include <openssl/opensslconf.h>
21 #include "internal/thread_once.h"
22 #include "internal/ctype.h"
23 #include "internal/constant_time_locl.h"
26 static int err_load_strings(const ERR_STRING_DATA
*str
);
28 static void ERR_STATE_free(ERR_STATE
*s
);
29 #ifndef OPENSSL_NO_ERR
30 static ERR_STRING_DATA ERR_str_libraries
[] = {
31 {ERR_PACK(ERR_LIB_NONE
, 0, 0), "unknown library"},
32 {ERR_PACK(ERR_LIB_SYS
, 0, 0), "system library"},
33 {ERR_PACK(ERR_LIB_BN
, 0, 0), "bignum routines"},
34 {ERR_PACK(ERR_LIB_RSA
, 0, 0), "rsa routines"},
35 {ERR_PACK(ERR_LIB_DH
, 0, 0), "Diffie-Hellman routines"},
36 {ERR_PACK(ERR_LIB_EVP
, 0, 0), "digital envelope routines"},
37 {ERR_PACK(ERR_LIB_BUF
, 0, 0), "memory buffer routines"},
38 {ERR_PACK(ERR_LIB_OBJ
, 0, 0), "object identifier routines"},
39 {ERR_PACK(ERR_LIB_PEM
, 0, 0), "PEM routines"},
40 {ERR_PACK(ERR_LIB_DSA
, 0, 0), "dsa routines"},
41 {ERR_PACK(ERR_LIB_X509
, 0, 0), "x509 certificate routines"},
42 {ERR_PACK(ERR_LIB_ASN1
, 0, 0), "asn1 encoding routines"},
43 {ERR_PACK(ERR_LIB_CONF
, 0, 0), "configuration file routines"},
44 {ERR_PACK(ERR_LIB_CRYPTO
, 0, 0), "common libcrypto routines"},
45 {ERR_PACK(ERR_LIB_EC
, 0, 0), "elliptic curve routines"},
46 {ERR_PACK(ERR_LIB_ECDSA
, 0, 0), "ECDSA routines"},
47 {ERR_PACK(ERR_LIB_ECDH
, 0, 0), "ECDH routines"},
48 {ERR_PACK(ERR_LIB_SSL
, 0, 0), "SSL routines"},
49 {ERR_PACK(ERR_LIB_BIO
, 0, 0), "BIO routines"},
50 {ERR_PACK(ERR_LIB_PKCS7
, 0, 0), "PKCS7 routines"},
51 {ERR_PACK(ERR_LIB_X509V3
, 0, 0), "X509 V3 routines"},
52 {ERR_PACK(ERR_LIB_PKCS12
, 0, 0), "PKCS12 routines"},
53 {ERR_PACK(ERR_LIB_RAND
, 0, 0), "random number generator"},
54 {ERR_PACK(ERR_LIB_DSO
, 0, 0), "DSO support routines"},
55 {ERR_PACK(ERR_LIB_TS
, 0, 0), "time stamp routines"},
56 {ERR_PACK(ERR_LIB_ENGINE
, 0, 0), "engine routines"},
57 {ERR_PACK(ERR_LIB_OCSP
, 0, 0), "OCSP routines"},
58 {ERR_PACK(ERR_LIB_UI
, 0, 0), "UI routines"},
59 {ERR_PACK(ERR_LIB_FIPS
, 0, 0), "FIPS routines"},
60 {ERR_PACK(ERR_LIB_CMS
, 0, 0), "CMS routines"},
61 {ERR_PACK(ERR_LIB_CRMF
, 0, 0), "CRMF routines"},
62 {ERR_PACK(ERR_LIB_CMP
, 0, 0), "CMP routines"},
63 {ERR_PACK(ERR_LIB_HMAC
, 0, 0), "HMAC routines"},
64 {ERR_PACK(ERR_LIB_CT
, 0, 0), "CT routines"},
65 {ERR_PACK(ERR_LIB_ASYNC
, 0, 0), "ASYNC routines"},
66 {ERR_PACK(ERR_LIB_KDF
, 0, 0), "KDF routines"},
67 {ERR_PACK(ERR_LIB_OSSL_STORE
, 0, 0), "STORE routines"},
68 {ERR_PACK(ERR_LIB_SM2
, 0, 0), "SM2 routines"},
69 {ERR_PACK(ERR_LIB_ESS
, 0, 0), "ESS routines"},
70 {ERR_PACK(ERR_LIB_PROV
, 0, 0), "Provider routines"},
74 static ERR_STRING_DATA ERR_str_functs
[] = {
75 {ERR_PACK(0, SYS_F_FOPEN
, 0), "fopen"},
76 {ERR_PACK(0, SYS_F_CONNECT
, 0), "connect"},
77 {ERR_PACK(0, SYS_F_GETSERVBYNAME
, 0), "getservbyname"},
78 {ERR_PACK(0, SYS_F_SOCKET
, 0), "socket"},
79 {ERR_PACK(0, SYS_F_IOCTLSOCKET
, 0), "ioctlsocket"},
80 {ERR_PACK(0, SYS_F_BIND
, 0), "bind"},
81 {ERR_PACK(0, SYS_F_LISTEN
, 0), "listen"},
82 {ERR_PACK(0, SYS_F_ACCEPT
, 0), "accept"},
83 # ifdef OPENSSL_SYS_WINDOWS
84 {ERR_PACK(0, SYS_F_WSASTARTUP
, 0), "WSAstartup"},
86 {ERR_PACK(0, SYS_F_OPENDIR
, 0), "opendir"},
87 {ERR_PACK(0, SYS_F_FREAD
, 0), "fread"},
88 {ERR_PACK(0, SYS_F_GETADDRINFO
, 0), "getaddrinfo"},
89 {ERR_PACK(0, SYS_F_GETNAMEINFO
, 0), "getnameinfo"},
90 {ERR_PACK(0, SYS_F_SETSOCKOPT
, 0), "setsockopt"},
91 {ERR_PACK(0, SYS_F_GETSOCKOPT
, 0), "getsockopt"},
92 {ERR_PACK(0, SYS_F_GETSOCKNAME
, 0), "getsockname"},
93 {ERR_PACK(0, SYS_F_GETHOSTBYNAME
, 0), "gethostbyname"},
94 {ERR_PACK(0, SYS_F_FFLUSH
, 0), "fflush"},
95 {ERR_PACK(0, SYS_F_OPEN
, 0), "open"},
96 {ERR_PACK(0, SYS_F_CLOSE
, 0), "close"},
97 {ERR_PACK(0, SYS_F_IOCTL
, 0), "ioctl"},
98 {ERR_PACK(0, SYS_F_STAT
, 0), "stat"},
99 {ERR_PACK(0, SYS_F_FCNTL
, 0), "fcntl"},
100 {ERR_PACK(0, SYS_F_FSTAT
, 0), "fstat"},
104 static ERR_STRING_DATA ERR_str_reasons
[] = {
105 {ERR_R_SYS_LIB
, "system lib"},
106 {ERR_R_BN_LIB
, "BN lib"},
107 {ERR_R_RSA_LIB
, "RSA lib"},
108 {ERR_R_DH_LIB
, "DH lib"},
109 {ERR_R_EVP_LIB
, "EVP lib"},
110 {ERR_R_BUF_LIB
, "BUF lib"},
111 {ERR_R_OBJ_LIB
, "OBJ lib"},
112 {ERR_R_PEM_LIB
, "PEM lib"},
113 {ERR_R_DSA_LIB
, "DSA lib"},
114 {ERR_R_X509_LIB
, "X509 lib"},
115 {ERR_R_ASN1_LIB
, "ASN1 lib"},
116 {ERR_R_EC_LIB
, "EC lib"},
117 {ERR_R_BIO_LIB
, "BIO lib"},
118 {ERR_R_PKCS7_LIB
, "PKCS7 lib"},
119 {ERR_R_X509V3_LIB
, "X509V3 lib"},
120 {ERR_R_ENGINE_LIB
, "ENGINE lib"},
121 {ERR_R_UI_LIB
, "UI lib"},
122 {ERR_R_OSSL_STORE_LIB
, "STORE lib"},
123 {ERR_R_ECDSA_LIB
, "ECDSA lib"},
125 {ERR_R_NESTED_ASN1_ERROR
, "nested asn1 error"},
126 {ERR_R_MISSING_ASN1_EOS
, "missing asn1 eos"},
128 {ERR_R_FATAL
, "fatal"},
129 {ERR_R_MALLOC_FAILURE
, "malloc failure"},
130 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
,
131 "called a function you should not call"},
132 {ERR_R_PASSED_NULL_PARAMETER
, "passed a null parameter"},
133 {ERR_R_INTERNAL_ERROR
, "internal error"},
134 {ERR_R_DISABLED
, "called a function that was disabled at compile-time"},
135 {ERR_R_INIT_FAIL
, "init fail"},
136 {ERR_R_OPERATION_FAIL
, "operation fail"},
142 static CRYPTO_ONCE err_init
= CRYPTO_ONCE_STATIC_INIT
;
143 static int set_err_thread_local
;
144 static CRYPTO_THREAD_LOCAL err_thread_local
;
146 static CRYPTO_ONCE err_string_init
= CRYPTO_ONCE_STATIC_INIT
;
147 static CRYPTO_RWLOCK
*err_string_lock
;
149 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*);
155 static LHASH_OF(ERR_STRING_DATA
) *int_error_hash
= NULL
;
156 static int int_err_library_number
= ERR_LIB_USER
;
158 static unsigned long get_error_values(int inc
, int top
, const char **file
,
159 int *line
, const char **data
,
162 static unsigned long err_string_data_hash(const ERR_STRING_DATA
*a
)
164 unsigned long ret
, l
;
167 ret
= l
^ ERR_GET_LIB(l
) ^ ERR_GET_FUNC(l
);
168 return (ret
^ ret
% 19 * 13);
171 static int err_string_data_cmp(const ERR_STRING_DATA
*a
,
172 const ERR_STRING_DATA
*b
)
174 if (a
->error
== b
->error
)
176 return a
->error
> b
->error
? 1 : -1;
179 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*d
)
181 ERR_STRING_DATA
*p
= NULL
;
183 CRYPTO_THREAD_read_lock(err_string_lock
);
184 p
= lh_ERR_STRING_DATA_retrieve(int_error_hash
, d
);
185 CRYPTO_THREAD_unlock(err_string_lock
);
190 #ifndef OPENSSL_NO_ERR
191 /* 2019-05-21: Russian and Ukrainian locales on Linux require more than 6,5 kB */
192 # define SPACE_SYS_STR_REASONS 8 * 1024
193 # define NUM_SYS_STR_REASONS 127
195 static ERR_STRING_DATA SYS_str_reasons
[NUM_SYS_STR_REASONS
+ 1];
197 * SYS_str_reasons is filled with copies of strerror() results at
198 * initialization. 'errno' values up to 127 should cover all usual errors,
199 * others will be displayed numerically by ERR_error_string. It is crucial
200 * that we have something for each reason code that occurs in
201 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
202 * which always gets an errno value and never one of those 'standard' reason
206 static void build_SYS_str_reasons(void)
208 /* OPENSSL_malloc cannot be used here, use static storage instead */
209 static char strerror_pool
[SPACE_SYS_STR_REASONS
];
210 char *cur
= strerror_pool
;
214 int saveerrno
= get_last_sys_error();
216 CRYPTO_THREAD_write_lock(err_string_lock
);
218 CRYPTO_THREAD_unlock(err_string_lock
);
222 for (i
= 1; i
<= NUM_SYS_STR_REASONS
; i
++) {
223 ERR_STRING_DATA
*str
= &SYS_str_reasons
[i
- 1];
225 str
->error
= ERR_PACK(ERR_LIB_SYS
, 0, i
);
227 * If we have used up all the space in strerror_pool,
228 * there's no point in calling openssl_strerror_r()
230 if (str
->string
== NULL
&& cnt
< sizeof(strerror_pool
)) {
231 if (openssl_strerror_r(i
, cur
, sizeof(strerror_pool
) - cnt
)) {
232 size_t l
= strlen(cur
);
239 * VMS has an unusual quirk of adding spaces at the end of
240 * some (most? all?) messages. Lets trim them off.
242 while (cur
> strerror_pool
&& ossl_isspace(cur
[-1])) {
250 if (str
->string
== NULL
)
251 str
->string
= "unknown";
255 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
256 * required by ERR_load_strings.
261 CRYPTO_THREAD_unlock(err_string_lock
);
262 /* openssl_strerror_r could change errno, but we want to preserve it */
263 set_sys_error(saveerrno
);
264 err_load_strings(SYS_str_reasons
);
268 #define err_clear_data(p, i) \
270 if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) {\
271 OPENSSL_free((p)->err_data[i]); \
272 (p)->err_data[i] = NULL; \
274 (p)->err_data_flags[i] = 0; \
277 #define err_clear(p, i) \
279 err_clear_data(p, i); \
280 (p)->err_flags[i] = 0; \
281 (p)->err_buffer[i] = 0; \
282 (p)->err_file[i] = NULL; \
283 (p)->err_line[i] = -1; \
286 static void ERR_STATE_free(ERR_STATE
*s
)
292 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
293 err_clear_data(s
, i
);
298 DEFINE_RUN_ONCE_STATIC(do_err_strings_init
)
300 if (!OPENSSL_init_crypto(0, NULL
))
302 err_string_lock
= CRYPTO_THREAD_lock_new();
303 if (err_string_lock
== NULL
)
305 int_error_hash
= lh_ERR_STRING_DATA_new(err_string_data_hash
,
306 err_string_data_cmp
);
307 if (int_error_hash
== NULL
) {
308 CRYPTO_THREAD_lock_free(err_string_lock
);
309 err_string_lock
= NULL
;
315 void err_cleanup(void)
317 if (set_err_thread_local
!= 0)
318 CRYPTO_THREAD_cleanup_local(&err_thread_local
);
319 CRYPTO_THREAD_lock_free(err_string_lock
);
320 err_string_lock
= NULL
;
321 lh_ERR_STRING_DATA_free(int_error_hash
);
322 int_error_hash
= NULL
;
326 * Legacy; pack in the library.
328 static void err_patch(int lib
, ERR_STRING_DATA
*str
)
330 unsigned long plib
= ERR_PACK(lib
, 0, 0);
332 for (; str
->error
!= 0; str
++)
337 * Hash in |str| error strings. Assumes the URN_ONCE was done.
339 static int err_load_strings(const ERR_STRING_DATA
*str
)
341 CRYPTO_THREAD_write_lock(err_string_lock
);
342 for (; str
->error
; str
++)
343 (void)lh_ERR_STRING_DATA_insert(int_error_hash
,
344 (ERR_STRING_DATA
*)str
);
345 CRYPTO_THREAD_unlock(err_string_lock
);
349 int ERR_load_ERR_strings(void)
351 #ifndef OPENSSL_NO_ERR
352 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
355 err_load_strings(ERR_str_libraries
);
356 err_load_strings(ERR_str_reasons
);
357 err_patch(ERR_LIB_SYS
, ERR_str_functs
);
358 err_load_strings(ERR_str_functs
);
359 build_SYS_str_reasons();
364 int ERR_load_strings(int lib
, ERR_STRING_DATA
*str
)
366 if (ERR_load_ERR_strings() == 0)
370 err_load_strings(str
);
374 int ERR_load_strings_const(const ERR_STRING_DATA
*str
)
376 if (ERR_load_ERR_strings() == 0)
378 err_load_strings(str
);
382 int ERR_unload_strings(int lib
, ERR_STRING_DATA
*str
)
384 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
387 CRYPTO_THREAD_write_lock(err_string_lock
);
389 * We don't need to ERR_PACK the lib, since that was done (to
390 * the table) when it was loaded.
392 for (; str
->error
; str
++)
393 (void)lh_ERR_STRING_DATA_delete(int_error_hash
, str
);
394 CRYPTO_THREAD_unlock(err_string_lock
);
399 void err_free_strings_int(void)
401 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
405 /********************************************************/
407 void ERR_put_error(int lib
, int func
, int reason
, const char *file
, int line
)
413 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
414 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
415 * something sensible. @@@ We shouldn't modify a const string, though.
417 if (strncmp(file
, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
420 /* Skip the "*POSIX(" prefix */
421 file
+= sizeof("*POSIX(") - 1;
422 end
= &file
[strlen(file
) - 1];
425 /* Optional: use the basename of the path only. */
426 if ((end
= strrchr(file
, '/')) != NULL
)
430 es
= ERR_get_state();
434 es
->top
= (es
->top
+ 1) % ERR_NUM_ERRORS
;
435 if (es
->top
== es
->bottom
)
436 es
->bottom
= (es
->bottom
+ 1) % ERR_NUM_ERRORS
;
437 es
->err_flags
[es
->top
] = 0;
438 es
->err_buffer
[es
->top
] = ERR_PACK(lib
, func
, reason
);
439 es
->err_file
[es
->top
] = file
;
440 es
->err_line
[es
->top
] = line
;
441 err_clear_data(es
, es
->top
);
444 void ERR_clear_error(void)
449 es
= ERR_get_state();
453 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
456 es
->top
= es
->bottom
= 0;
459 unsigned long ERR_get_error(void)
461 return get_error_values(1, 0, NULL
, NULL
, NULL
, NULL
);
464 unsigned long ERR_get_error_line(const char **file
, int *line
)
466 return get_error_values(1, 0, file
, line
, NULL
, NULL
);
469 unsigned long ERR_get_error_line_data(const char **file
, int *line
,
470 const char **data
, int *flags
)
472 return get_error_values(1, 0, file
, line
, data
, flags
);
475 unsigned long ERR_peek_error(void)
477 return get_error_values(0, 0, NULL
, NULL
, NULL
, NULL
);
480 unsigned long ERR_peek_error_line(const char **file
, int *line
)
482 return get_error_values(0, 0, file
, line
, NULL
, NULL
);
485 unsigned long ERR_peek_error_line_data(const char **file
, int *line
,
486 const char **data
, int *flags
)
488 return get_error_values(0, 0, file
, line
, data
, flags
);
491 unsigned long ERR_peek_last_error(void)
493 return get_error_values(0, 1, NULL
, NULL
, NULL
, NULL
);
496 unsigned long ERR_peek_last_error_line(const char **file
, int *line
)
498 return get_error_values(0, 1, file
, line
, NULL
, NULL
);
501 unsigned long ERR_peek_last_error_line_data(const char **file
, int *line
,
502 const char **data
, int *flags
)
504 return get_error_values(0, 1, file
, line
, data
, flags
);
507 static unsigned long get_error_values(int inc
, int top
, const char **file
,
508 int *line
, const char **data
,
515 es
= ERR_get_state();
529 return ERR_R_INTERNAL_ERROR
;
532 while (es
->bottom
!= es
->top
) {
533 if (es
->err_flags
[es
->top
] & ERR_FLAG_CLEAR
) {
534 err_clear(es
, es
->top
);
535 es
->top
= es
->top
> 0 ? es
->top
- 1 : ERR_NUM_ERRORS
- 1;
538 i
= (es
->bottom
+ 1) % ERR_NUM_ERRORS
;
539 if (es
->err_flags
[i
] & ERR_FLAG_CLEAR
) {
541 err_clear(es
, es
->bottom
);
547 if (es
->bottom
== es
->top
)
551 i
= es
->top
; /* last error */
553 i
= (es
->bottom
+ 1) % ERR_NUM_ERRORS
; /* first error */
555 ret
= es
->err_buffer
[i
];
558 es
->err_buffer
[i
] = 0;
561 if (file
!= NULL
&& line
!= NULL
) {
562 if (es
->err_file
[i
] == NULL
) {
566 *file
= es
->err_file
[i
];
567 *line
= es
->err_line
[i
];
573 err_clear_data(es
, i
);
576 if (es
->err_data
[i
] == NULL
) {
581 *data
= es
->err_data
[i
];
583 *flags
= es
->err_data_flags
[i
];
589 void ERR_error_string_n(unsigned long e
, char *buf
, size_t len
)
591 char lsbuf
[64], fsbuf
[64], rsbuf
[64];
592 const char *ls
, *fs
, *rs
;
593 unsigned long l
, f
, r
;
599 ls
= ERR_lib_error_string(e
);
601 BIO_snprintf(lsbuf
, sizeof(lsbuf
), "lib(%lu)", l
);
605 fs
= ERR_func_error_string(e
);
608 BIO_snprintf(fsbuf
, sizeof(fsbuf
), "func(%lu)", f
);
612 rs
= ERR_reason_error_string(e
);
613 r
= ERR_GET_REASON(e
);
615 BIO_snprintf(rsbuf
, sizeof(rsbuf
), "reason(%lu)", r
);
619 BIO_snprintf(buf
, len
, "error:%08lX:%s:%s:%s", e
, ls
, fs
, rs
);
620 if (strlen(buf
) == len
- 1) {
621 /* Didn't fit; use a minimal format. */
622 BIO_snprintf(buf
, len
, "err:%lx:%lx:%lx:%lx", e
, l
, f
, r
);
627 * ERR_error_string_n should be used instead for ret != NULL as
628 * ERR_error_string cannot know how large the buffer is
630 char *ERR_error_string(unsigned long e
, char *ret
)
632 static char buf
[256];
636 ERR_error_string_n(e
, ret
, (int)sizeof(buf
));
640 const char *ERR_lib_error_string(unsigned long e
)
642 ERR_STRING_DATA d
, *p
;
645 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
650 d
.error
= ERR_PACK(l
, 0, 0);
651 p
= int_err_get_item(&d
);
652 return ((p
== NULL
) ? NULL
: p
->string
);
655 const char *ERR_func_error_string(unsigned long e
)
657 ERR_STRING_DATA d
, *p
;
660 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
666 d
.error
= ERR_PACK(l
, f
, 0);
667 p
= int_err_get_item(&d
);
668 return ((p
== NULL
) ? NULL
: p
->string
);
671 const char *ERR_reason_error_string(unsigned long e
)
673 ERR_STRING_DATA d
, *p
= NULL
;
676 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
681 r
= ERR_GET_REASON(e
);
682 d
.error
= ERR_PACK(l
, 0, r
);
683 p
= int_err_get_item(&d
);
685 d
.error
= ERR_PACK(0, 0, r
);
686 p
= int_err_get_item(&d
);
688 return ((p
== NULL
) ? NULL
: p
->string
);
691 void err_delete_thread_state(void)
693 ERR_STATE
*state
= CRYPTO_THREAD_get_local(&err_thread_local
);
697 CRYPTO_THREAD_set_local(&err_thread_local
, NULL
);
698 ERR_STATE_free(state
);
701 #if !OPENSSL_API_1_1_0
702 void ERR_remove_thread_state(void *dummy
)
707 #if !OPENSSL_API_1_0_0
708 void ERR_remove_state(unsigned long pid
)
713 DEFINE_RUN_ONCE_STATIC(err_do_init
)
715 set_err_thread_local
= 1;
716 return CRYPTO_THREAD_init_local(&err_thread_local
, NULL
);
719 ERR_STATE
*ERR_get_state(void)
722 int saveerrno
= get_last_sys_error();
724 if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY
, NULL
))
727 if (!RUN_ONCE(&err_init
, err_do_init
))
730 state
= CRYPTO_THREAD_get_local(&err_thread_local
);
731 if (state
== (ERR_STATE
*)-1)
735 if (!CRYPTO_THREAD_set_local(&err_thread_local
, (ERR_STATE
*)-1))
738 if ((state
= OPENSSL_zalloc(sizeof(*state
))) == NULL
) {
739 CRYPTO_THREAD_set_local(&err_thread_local
, NULL
);
743 if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE
)
744 || !CRYPTO_THREAD_set_local(&err_thread_local
, state
)) {
745 ERR_STATE_free(state
);
746 CRYPTO_THREAD_set_local(&err_thread_local
, NULL
);
750 /* Ignore failures from these */
751 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS
, NULL
);
754 set_sys_error(saveerrno
);
759 * err_shelve_state returns the current thread local error state
760 * and freezes the error module until err_unshelve_state is called.
762 int err_shelve_state(void **state
)
764 int saveerrno
= get_last_sys_error();
767 * Note, at present our only caller is OPENSSL_init_crypto(), indirectly
768 * via ossl_init_load_crypto_nodelete(), by which point the requested
769 * "base" initialization has already been performed, so the below call is a
770 * NOOP, that re-enters OPENSSL_init_crypto() only to quickly return.
772 * If are no other valid callers of this function, the call below can be
773 * removed, avoiding the re-entry into OPENSSL_init_crypto(). If there are
774 * potential uses that are not from inside OPENSSL_init_crypto(), then this
775 * call is needed, but some care is required to make sure that the re-entry
778 if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY
, NULL
))
781 if (!RUN_ONCE(&err_init
, err_do_init
))
784 *state
= CRYPTO_THREAD_get_local(&err_thread_local
);
785 if (!CRYPTO_THREAD_set_local(&err_thread_local
, (ERR_STATE
*)-1))
788 set_sys_error(saveerrno
);
793 * err_unshelve_state restores the error state that was returned
794 * by err_shelve_state previously.
796 void err_unshelve_state(void* state
)
798 if (state
!= (void*)-1)
799 CRYPTO_THREAD_set_local(&err_thread_local
, (ERR_STATE
*)state
);
802 int ERR_get_next_error_library(void)
806 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
809 CRYPTO_THREAD_write_lock(err_string_lock
);
810 ret
= int_err_library_number
++;
811 CRYPTO_THREAD_unlock(err_string_lock
);
815 static int err_set_error_data_int(char *data
, int flags
)
820 es
= ERR_get_state();
826 err_clear_data(es
, i
);
827 es
->err_data
[i
] = data
;
828 es
->err_data_flags
[i
] = flags
;
833 void ERR_set_error_data(char *data
, int flags
)
836 * This function is void so we cannot propagate the error return. Since it
837 * is also in the public API we can't change the return type.
839 err_set_error_data_int(data
, flags
);
842 void ERR_add_error_data(int num
, ...)
846 ERR_add_error_vdata(num
, args
);
850 void ERR_add_error_vdata(int num
, va_list args
)
856 if ((str
= OPENSSL_malloc(s
+ 1)) == NULL
) {
857 /* ERRerr(ERR_F_ERR_ADD_ERROR_VDATA, ERR_R_MALLOC_FAILURE); */
863 for (i
= 0; i
< num
; i
++) {
864 a
= va_arg(args
, char *);
870 p
= OPENSSL_realloc(str
, s
+ 1);
877 OPENSSL_strlcat(str
, a
, (size_t)s
+ 1);
879 if (!err_set_error_data_int(str
, ERR_TXT_MALLOCED
| ERR_TXT_STRING
))
883 int ERR_set_mark(void)
887 es
= ERR_get_state();
891 if (es
->bottom
== es
->top
)
893 es
->err_flags
[es
->top
] |= ERR_FLAG_MARK
;
897 int ERR_pop_to_mark(void)
901 es
= ERR_get_state();
905 while (es
->bottom
!= es
->top
906 && (es
->err_flags
[es
->top
] & ERR_FLAG_MARK
) == 0) {
907 err_clear(es
, es
->top
);
908 es
->top
= es
->top
> 0 ? es
->top
- 1 : ERR_NUM_ERRORS
- 1;
911 if (es
->bottom
== es
->top
)
913 es
->err_flags
[es
->top
] &= ~ERR_FLAG_MARK
;
917 int ERR_clear_last_mark(void)
922 es
= ERR_get_state();
927 while (es
->bottom
!= top
928 && (es
->err_flags
[top
] & ERR_FLAG_MARK
) == 0) {
929 top
= top
> 0 ? top
- 1 : ERR_NUM_ERRORS
- 1;
932 if (es
->bottom
== top
)
934 es
->err_flags
[top
] &= ~ERR_FLAG_MARK
;
938 void err_clear_last_constant_time(int clear
)
943 es
= ERR_get_state();
950 * Flag error as cleared but remove it elsewhere to avoid two errors
951 * accessing the same error stack location, revealing timing information.
953 clear
= constant_time_select_int(constant_time_eq_int(clear
, 0),
955 es
->err_flags
[top
] |= clear
;