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aa6bb135 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
0a150c5c | 3 | * |
aa6bb135 RS |
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 | |
0a150c5c | 8 | */ |
d02b48c6 RE |
9 | |
10 | #include <stdio.h> | |
4565c3e3 | 11 | #include <stdarg.h> |
0a150c5c | 12 | #include <string.h> |
7b9f8f7f | 13 | #include <internal/cryptlib_int.h> |
ff234405 | 14 | #include <internal/err.h> |
c3a64b52 | 15 | #include <internal/err_int.h> |
ec577822 | 16 | #include <openssl/lhash.h> |
52df25cf | 17 | #include <openssl/err.h> |
ec577822 | 18 | #include <openssl/crypto.h> |
ec577822 | 19 | #include <openssl/buffer.h> |
e5c84d51 | 20 | #include <openssl/bio.h> |
98186eb4 | 21 | #include <openssl/opensslconf.h> |
c2e4e5d2 | 22 | #include <internal/thread_once.h> |
3c1d6bbc | 23 | |
52df25cf | 24 | static int err_load_strings(const ERR_STRING_DATA *str); |
cf5bfbfc | 25 | |
58964a49 | 26 | static void ERR_STATE_free(ERR_STATE *s); |
cf1b7d96 | 27 | #ifndef OPENSSL_NO_ERR |
0f113f3e MC |
28 | static ERR_STRING_DATA ERR_str_libraries[] = { |
29 | {ERR_PACK(ERR_LIB_NONE, 0, 0), "unknown library"}, | |
30 | {ERR_PACK(ERR_LIB_SYS, 0, 0), "system library"}, | |
31 | {ERR_PACK(ERR_LIB_BN, 0, 0), "bignum routines"}, | |
32 | {ERR_PACK(ERR_LIB_RSA, 0, 0), "rsa routines"}, | |
33 | {ERR_PACK(ERR_LIB_DH, 0, 0), "Diffie-Hellman routines"}, | |
34 | {ERR_PACK(ERR_LIB_EVP, 0, 0), "digital envelope routines"}, | |
35 | {ERR_PACK(ERR_LIB_BUF, 0, 0), "memory buffer routines"}, | |
36 | {ERR_PACK(ERR_LIB_OBJ, 0, 0), "object identifier routines"}, | |
37 | {ERR_PACK(ERR_LIB_PEM, 0, 0), "PEM routines"}, | |
38 | {ERR_PACK(ERR_LIB_DSA, 0, 0), "dsa routines"}, | |
39 | {ERR_PACK(ERR_LIB_X509, 0, 0), "x509 certificate routines"}, | |
40 | {ERR_PACK(ERR_LIB_ASN1, 0, 0), "asn1 encoding routines"}, | |
41 | {ERR_PACK(ERR_LIB_CONF, 0, 0), "configuration file routines"}, | |
42 | {ERR_PACK(ERR_LIB_CRYPTO, 0, 0), "common libcrypto routines"}, | |
43 | {ERR_PACK(ERR_LIB_EC, 0, 0), "elliptic curve routines"}, | |
44 | {ERR_PACK(ERR_LIB_ECDSA, 0, 0), "ECDSA routines"}, | |
45 | {ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH routines"}, | |
46 | {ERR_PACK(ERR_LIB_SSL, 0, 0), "SSL routines"}, | |
47 | {ERR_PACK(ERR_LIB_BIO, 0, 0), "BIO routines"}, | |
48 | {ERR_PACK(ERR_LIB_PKCS7, 0, 0), "PKCS7 routines"}, | |
49 | {ERR_PACK(ERR_LIB_X509V3, 0, 0), "X509 V3 routines"}, | |
50 | {ERR_PACK(ERR_LIB_PKCS12, 0, 0), "PKCS12 routines"}, | |
51 | {ERR_PACK(ERR_LIB_RAND, 0, 0), "random number generator"}, | |
52 | {ERR_PACK(ERR_LIB_DSO, 0, 0), "DSO support routines"}, | |
53 | {ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"}, | |
54 | {ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"}, | |
55 | {ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"}, | |
49844486 | 56 | {ERR_PACK(ERR_LIB_UI, 0, 0), "UI routines"}, |
0f113f3e MC |
57 | {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"}, |
58 | {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"}, | |
59 | {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"}, | |
0cea8832 | 60 | {ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"}, |
079a1a90 | 61 | {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"}, |
3e30fa0a | 62 | {ERR_PACK(ERR_LIB_KDF, 0, 0), "KDF routines"}, |
71a5516d | 63 | {ERR_PACK(ERR_LIB_OSSL_STORE, 0, 0), "STORE routines"}, |
0f113f3e MC |
64 | {0, NULL}, |
65 | }; | |
66 | ||
67 | static ERR_STRING_DATA ERR_str_functs[] = { | |
68 | {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"}, | |
69 | {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"}, | |
70 | {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"}, | |
71 | {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"}, | |
72 | {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"}, | |
73 | {ERR_PACK(0, SYS_F_BIND, 0), "bind"}, | |
74 | {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"}, | |
75 | {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"}, | |
76 | # ifdef OPENSSL_SYS_WINDOWS | |
77 | {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"}, | |
78 | # endif | |
79 | {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"}, | |
80 | {ERR_PACK(0, SYS_F_FREAD, 0), "fread"}, | |
83be2778 RL |
81 | {ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"}, |
82 | {ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"}, | |
d33b215b RL |
83 | {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"}, |
84 | {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"}, | |
85 | {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"}, | |
c86d1f19 | 86 | {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"}, |
595b2a42 | 87 | {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"}, |
619eb33a RL |
88 | {ERR_PACK(0, SYS_F_OPEN, 0), "open"}, |
89 | {ERR_PACK(0, SYS_F_CLOSE, 0), "close"}, | |
90 | {ERR_PACK(0, SYS_F_IOCTL, 0), "ioctl"}, | |
970f467a | 91 | {ERR_PACK(0, SYS_F_STAT, 0), "stat"}, |
0f113f3e MC |
92 | {0, NULL}, |
93 | }; | |
94 | ||
95 | static ERR_STRING_DATA ERR_str_reasons[] = { | |
96 | {ERR_R_SYS_LIB, "system lib"}, | |
97 | {ERR_R_BN_LIB, "BN lib"}, | |
98 | {ERR_R_RSA_LIB, "RSA lib"}, | |
99 | {ERR_R_DH_LIB, "DH lib"}, | |
100 | {ERR_R_EVP_LIB, "EVP lib"}, | |
101 | {ERR_R_BUF_LIB, "BUF lib"}, | |
102 | {ERR_R_OBJ_LIB, "OBJ lib"}, | |
103 | {ERR_R_PEM_LIB, "PEM lib"}, | |
104 | {ERR_R_DSA_LIB, "DSA lib"}, | |
105 | {ERR_R_X509_LIB, "X509 lib"}, | |
106 | {ERR_R_ASN1_LIB, "ASN1 lib"}, | |
0f113f3e | 107 | {ERR_R_EC_LIB, "EC lib"}, |
0f113f3e MC |
108 | {ERR_R_BIO_LIB, "BIO lib"}, |
109 | {ERR_R_PKCS7_LIB, "PKCS7 lib"}, | |
110 | {ERR_R_X509V3_LIB, "X509V3 lib"}, | |
0f113f3e | 111 | {ERR_R_ENGINE_LIB, "ENGINE lib"}, |
c785fd48 | 112 | {ERR_R_UI_LIB, "UI lib"}, |
71a5516d | 113 | {ERR_R_OSSL_STORE_LIB, "STORE lib"}, |
0f113f3e MC |
114 | {ERR_R_ECDSA_LIB, "ECDSA lib"}, |
115 | ||
116 | {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"}, | |
0f113f3e MC |
117 | {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"}, |
118 | ||
119 | {ERR_R_FATAL, "fatal"}, | |
120 | {ERR_R_MALLOC_FAILURE, "malloc failure"}, | |
121 | {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, | |
122 | "called a function you should not call"}, | |
123 | {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"}, | |
124 | {ERR_R_INTERNAL_ERROR, "internal error"}, | |
125 | {ERR_R_DISABLED, "called a function that was disabled at compile-time"}, | |
302f7588 | 126 | {ERR_R_INIT_FAIL, "init fail"}, |
9a32dcf4 | 127 | {ERR_R_OPERATION_FAIL, "operation fail"}, |
0f113f3e MC |
128 | |
129 | {0, NULL}, | |
130 | }; | |
d02b48c6 | 131 | #endif |
0a150c5c | 132 | |
8509dcc9 | 133 | static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT; |
73bc5370 | 134 | static int set_err_thread_local; |
8509dcc9 AG |
135 | static CRYPTO_THREAD_LOCAL err_thread_local; |
136 | ||
7b8e12d2 AG |
137 | static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT; |
138 | static CRYPTO_RWLOCK *err_string_lock; | |
139 | ||
566bdf2b | 140 | static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *); |
566bdf2b | 141 | |
0f113f3e | 142 | /* |
3e47caff | 143 | * The internal state |
0f113f3e | 144 | */ |
f3f1cf84 | 145 | |
3c1d6bbc | 146 | static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL; |
0f113f3e | 147 | static int int_err_library_number = ERR_LIB_USER; |
566bdf2b | 148 | |
0f113f3e MC |
149 | static unsigned long get_error_values(int inc, int top, const char **file, |
150 | int *line, const char **data, | |
151 | int *flags); | |
566bdf2b | 152 | |
3c1d6bbc | 153 | static unsigned long err_string_data_hash(const ERR_STRING_DATA *a) |
0f113f3e MC |
154 | { |
155 | unsigned long ret, l; | |
156 | ||
157 | l = a->error; | |
158 | ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l); | |
159 | return (ret ^ ret % 19 * 13); | |
160 | } | |
3c1d6bbc | 161 | |
3c1d6bbc | 162 | static int err_string_data_cmp(const ERR_STRING_DATA *a, |
0f113f3e MC |
163 | const ERR_STRING_DATA *b) |
164 | { | |
165 | return (int)(a->error - b->error); | |
166 | } | |
167 | ||
566bdf2b | 168 | static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d) |
0f113f3e | 169 | { |
3e47caff | 170 | ERR_STRING_DATA *p = NULL; |
78f79235 | 171 | |
7b8e12d2 | 172 | CRYPTO_THREAD_read_lock(err_string_lock); |
52df25cf | 173 | p = lh_ERR_STRING_DATA_retrieve(int_error_hash, d); |
7b8e12d2 | 174 | CRYPTO_THREAD_unlock(err_string_lock); |
78f79235 | 175 | |
0f113f3e MC |
176 | return p; |
177 | } | |
567fef89 | 178 | |
758f942b | 179 | #ifndef OPENSSL_NO_ERR |
0f113f3e MC |
180 | # define NUM_SYS_STR_REASONS 127 |
181 | # define LEN_SYS_STR_REASON 32 | |
0a150c5c BM |
182 | |
183 | static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1]; | |
0f113f3e MC |
184 | /* |
185 | * SYS_str_reasons is filled with copies of strerror() results at | |
186 | * initialization. 'errno' values up to 127 should cover all usual errors, | |
187 | * others will be displayed numerically by ERR_error_string. It is crucial | |
188 | * that we have something for each reason code that occurs in | |
189 | * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(), | |
190 | * which always gets an errno value and never one of those 'standard' reason | |
191 | * codes. | |
192 | */ | |
0a150c5c | 193 | |
41a15c4f | 194 | static void build_SYS_str_reasons(void) |
0f113f3e MC |
195 | { |
196 | /* OPENSSL_malloc cannot be used here, use static storage instead */ | |
197 | static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON]; | |
0f113f3e | 198 | static int init = 1; |
3e47caff | 199 | int i; |
0f113f3e | 200 | |
7b8e12d2 | 201 | CRYPTO_THREAD_write_lock(err_string_lock); |
0f113f3e | 202 | if (!init) { |
7b8e12d2 | 203 | CRYPTO_THREAD_unlock(err_string_lock); |
0f113f3e MC |
204 | return; |
205 | } | |
206 | ||
207 | for (i = 1; i <= NUM_SYS_STR_REASONS; i++) { | |
208 | ERR_STRING_DATA *str = &SYS_str_reasons[i - 1]; | |
209 | ||
52df25cf | 210 | str->error = ERR_PACK(ERR_LIB_SYS, 0, i); |
0f113f3e MC |
211 | if (str->string == NULL) { |
212 | char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]); | |
7d37818d | 213 | if (openssl_strerror_r(i, *dest, sizeof(*dest))) |
0f113f3e | 214 | str->string = *dest; |
0f113f3e MC |
215 | } |
216 | if (str->string == NULL) | |
217 | str->string = "unknown"; | |
218 | } | |
219 | ||
220 | /* | |
221 | * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as | |
222 | * required by ERR_load_strings. | |
223 | */ | |
224 | ||
225 | init = 0; | |
226 | ||
7b8e12d2 | 227 | CRYPTO_THREAD_unlock(err_string_lock); |
52df25cf | 228 | err_load_strings(SYS_str_reasons); |
0f113f3e | 229 | } |
d02b48c6 RE |
230 | #endif |
231 | ||
58964a49 | 232 | #define err_clear_data(p,i) \ |
0f113f3e | 233 | do { \ |
b548a1f1 | 234 | if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) \ |
0f113f3e MC |
235 | { \ |
236 | OPENSSL_free((p)->err_data[i]); \ | |
237 | (p)->err_data[i]=NULL; \ | |
238 | } \ | |
239 | (p)->err_data_flags[i]=0; \ | |
240 | } while(0) | |
54f64516 RL |
241 | |
242 | #define err_clear(p,i) \ | |
0f113f3e MC |
243 | do { \ |
244 | (p)->err_flags[i]=0; \ | |
245 | (p)->err_buffer[i]=0; \ | |
246 | err_clear_data(p,i); \ | |
247 | (p)->err_file[i]=NULL; \ | |
248 | (p)->err_line[i]= -1; \ | |
249 | } while(0) | |
58964a49 | 250 | |
6b691a5c | 251 | static void ERR_STATE_free(ERR_STATE *s) |
0f113f3e MC |
252 | { |
253 | int i; | |
58964a49 | 254 | |
0f113f3e MC |
255 | if (s == NULL) |
256 | return; | |
e03ddfae | 257 | |
0f113f3e MC |
258 | for (i = 0; i < ERR_NUM_ERRORS; i++) { |
259 | err_clear_data(s, i); | |
260 | } | |
261 | OPENSSL_free(s); | |
262 | } | |
58964a49 | 263 | |
c2e4e5d2 | 264 | DEFINE_RUN_ONCE_STATIC(do_err_strings_init) |
7b8e12d2 | 265 | { |
135648bc | 266 | OPENSSL_init_crypto(0, NULL); |
7b8e12d2 | 267 | err_string_lock = CRYPTO_THREAD_lock_new(); |
52df25cf RS |
268 | int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash, |
269 | err_string_data_cmp); | |
270 | return err_string_lock != NULL && int_error_hash != NULL; | |
ff234405 MC |
271 | } |
272 | ||
273 | void err_cleanup(void) | |
274 | { | |
73bc5370 RS |
275 | if (set_err_thread_local != 0) |
276 | CRYPTO_THREAD_cleanup_local(&err_thread_local); | |
ff234405 MC |
277 | CRYPTO_THREAD_lock_free(err_string_lock); |
278 | err_string_lock = NULL; | |
52df25cf RS |
279 | lh_ERR_STRING_DATA_free(int_error_hash); |
280 | int_error_hash = NULL; | |
281 | } | |
282 | ||
283 | /* | |
284 | * Legacy; pack in the library. | |
285 | */ | |
286 | static void err_patch(int lib, ERR_STRING_DATA *str) | |
287 | { | |
288 | unsigned long plib = ERR_PACK(lib, 0, 0); | |
289 | ||
290 | for (; str->error != 0; str++) | |
291 | str->error |= plib; | |
292 | } | |
293 | ||
294 | /* | |
295 | * Hash in |str| error strings. Assumes the URN_ONCE was done. | |
296 | */ | |
297 | static int err_load_strings(const ERR_STRING_DATA *str) | |
298 | { | |
299 | CRYPTO_THREAD_write_lock(err_string_lock); | |
300 | for (; str->error; str++) | |
301 | (void)lh_ERR_STRING_DATA_insert(int_error_hash, | |
302 | (ERR_STRING_DATA *)str); | |
303 | CRYPTO_THREAD_unlock(err_string_lock); | |
304 | return 1; | |
7b8e12d2 AG |
305 | } |
306 | ||
69588edb | 307 | int ERR_load_ERR_strings(void) |
0f113f3e | 308 | { |
cf1b7d96 | 309 | #ifndef OPENSSL_NO_ERR |
69588edb KR |
310 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) |
311 | return 0; | |
7b8e12d2 | 312 | |
52df25cf RS |
313 | err_load_strings(ERR_str_libraries); |
314 | err_load_strings(ERR_str_reasons); | |
315 | err_patch(ERR_LIB_SYS, ERR_str_functs); | |
316 | err_load_strings(ERR_str_functs); | |
0f113f3e | 317 | build_SYS_str_reasons(); |
d02b48c6 | 318 | #endif |
69588edb | 319 | return 1; |
0f113f3e | 320 | } |
d02b48c6 | 321 | |
52df25cf | 322 | int ERR_load_strings(int lib, ERR_STRING_DATA *str) |
0f113f3e | 323 | { |
52df25cf RS |
324 | if (ERR_load_ERR_strings() == 0) |
325 | return 0; | |
326 | ||
327 | err_patch(lib, str); | |
328 | err_load_strings(str); | |
329 | return 1; | |
0f113f3e | 330 | } |
d02b48c6 | 331 | |
52df25cf | 332 | int ERR_load_strings_const(const ERR_STRING_DATA *str) |
0f113f3e | 333 | { |
69588edb KR |
334 | if (ERR_load_ERR_strings() == 0) |
335 | return 0; | |
52df25cf | 336 | err_load_strings(str); |
69588edb | 337 | return 1; |
0f113f3e | 338 | } |
cf5bfbfc | 339 | |
c2e4e5d2 | 340 | int ERR_unload_strings(int lib, ERR_STRING_DATA *str) |
0f113f3e | 341 | { |
c2e4e5d2 RL |
342 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) |
343 | return 0; | |
7b8e12d2 AG |
344 | |
345 | CRYPTO_THREAD_write_lock(err_string_lock); | |
52df25cf RS |
346 | /* |
347 | * We don't need to ERR_PACK the lib, since that was done (to | |
348 | * the table) when it was loaded. | |
349 | */ | |
350 | for (; str->error; str++) | |
351 | (void)lh_ERR_STRING_DATA_delete(int_error_hash, str); | |
7b8e12d2 | 352 | CRYPTO_THREAD_unlock(err_string_lock); |
c2e4e5d2 RL |
353 | |
354 | return 1; | |
0f113f3e | 355 | } |
1738bb61 | 356 | |
b3599dbb | 357 | void err_free_strings_int(void) |
0f113f3e | 358 | { |
c2e4e5d2 RL |
359 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) |
360 | return; | |
0f113f3e | 361 | } |
d02b48c6 | 362 | |
58964a49 RE |
363 | /********************************************************/ |
364 | ||
0f113f3e MC |
365 | void ERR_put_error(int lib, int func, int reason, const char *file, int line) |
366 | { | |
367 | ERR_STATE *es; | |
d02b48c6 | 368 | |
a53955d8 | 369 | #ifdef _OSD_POSIX |
0f113f3e MC |
370 | /* |
371 | * In the BS2000-OSD POSIX subsystem, the compiler generates path names | |
372 | * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to | |
373 | * something sensible. @@@ We shouldn't modify a const string, though. | |
374 | */ | |
375 | if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) { | |
376 | char *end; | |
377 | ||
378 | /* Skip the "*POSIX(" prefix */ | |
379 | file += sizeof("*POSIX(") - 1; | |
380 | end = &file[strlen(file) - 1]; | |
381 | if (*end == ')') | |
382 | *end = '\0'; | |
383 | /* Optional: use the basename of the path only. */ | |
384 | if ((end = strrchr(file, '/')) != NULL) | |
385 | file = &end[1]; | |
386 | } | |
a53955d8 | 387 | #endif |
0f113f3e | 388 | es = ERR_get_state(); |
4fc426b7 BE |
389 | if (es == NULL) |
390 | return; | |
0f113f3e MC |
391 | |
392 | es->top = (es->top + 1) % ERR_NUM_ERRORS; | |
393 | if (es->top == es->bottom) | |
394 | es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS; | |
395 | es->err_flags[es->top] = 0; | |
396 | es->err_buffer[es->top] = ERR_PACK(lib, func, reason); | |
397 | es->err_file[es->top] = file; | |
398 | es->err_line[es->top] = line; | |
399 | err_clear_data(es, es->top); | |
400 | } | |
d02b48c6 | 401 | |
6b691a5c | 402 | void ERR_clear_error(void) |
0f113f3e MC |
403 | { |
404 | int i; | |
405 | ERR_STATE *es; | |
d02b48c6 | 406 | |
0f113f3e | 407 | es = ERR_get_state(); |
4fc426b7 BE |
408 | if (es == NULL) |
409 | return; | |
d02b48c6 | 410 | |
0f113f3e MC |
411 | for (i = 0; i < ERR_NUM_ERRORS; i++) { |
412 | err_clear(es, i); | |
413 | } | |
414 | es->top = es->bottom = 0; | |
415 | } | |
d02b48c6 | 416 | |
6b691a5c | 417 | unsigned long ERR_get_error(void) |
0f113f3e MC |
418 | { |
419 | return (get_error_values(1, 0, NULL, NULL, NULL, NULL)); | |
420 | } | |
d02b48c6 | 421 | |
0f113f3e MC |
422 | unsigned long ERR_get_error_line(const char **file, int *line) |
423 | { | |
424 | return (get_error_values(1, 0, file, line, NULL, NULL)); | |
425 | } | |
d02b48c6 | 426 | |
6b691a5c | 427 | unsigned long ERR_get_error_line_data(const char **file, int *line, |
0f113f3e MC |
428 | const char **data, int *flags) |
429 | { | |
430 | return (get_error_values(1, 0, file, line, data, flags)); | |
431 | } | |
273db408 | 432 | |
6b691a5c | 433 | unsigned long ERR_peek_error(void) |
0f113f3e MC |
434 | { |
435 | return (get_error_values(0, 0, NULL, NULL, NULL, NULL)); | |
436 | } | |
d02b48c6 | 437 | |
a14e2d9d | 438 | unsigned long ERR_peek_error_line(const char **file, int *line) |
0f113f3e MC |
439 | { |
440 | return (get_error_values(0, 0, file, line, NULL, NULL)); | |
441 | } | |
0fc5cf08 | 442 | |
6b691a5c | 443 | unsigned long ERR_peek_error_line_data(const char **file, int *line, |
0f113f3e MC |
444 | const char **data, int *flags) |
445 | { | |
446 | return (get_error_values(0, 0, file, line, data, flags)); | |
447 | } | |
273db408 BM |
448 | |
449 | unsigned long ERR_peek_last_error(void) | |
0f113f3e MC |
450 | { |
451 | return (get_error_values(0, 1, NULL, NULL, NULL, NULL)); | |
452 | } | |
273db408 BM |
453 | |
454 | unsigned long ERR_peek_last_error_line(const char **file, int *line) | |
0f113f3e MC |
455 | { |
456 | return (get_error_values(0, 1, file, line, NULL, NULL)); | |
457 | } | |
273db408 | 458 | |
a14e2d9d | 459 | unsigned long ERR_peek_last_error_line_data(const char **file, int *line, |
0f113f3e MC |
460 | const char **data, int *flags) |
461 | { | |
462 | return (get_error_values(0, 1, file, line, data, flags)); | |
463 | } | |
464 | ||
465 | static unsigned long get_error_values(int inc, int top, const char **file, | |
466 | int *line, const char **data, | |
467 | int *flags) | |
468 | { | |
469 | int i = 0; | |
470 | ERR_STATE *es; | |
471 | unsigned long ret; | |
472 | ||
473 | es = ERR_get_state(); | |
4fc426b7 BE |
474 | if (es == NULL) |
475 | return 0; | |
0f113f3e MC |
476 | |
477 | if (inc && top) { | |
478 | if (file) | |
479 | *file = ""; | |
480 | if (line) | |
481 | *line = 0; | |
482 | if (data) | |
483 | *data = ""; | |
484 | if (flags) | |
485 | *flags = 0; | |
486 | ||
487 | return ERR_R_INTERNAL_ERROR; | |
488 | } | |
489 | ||
490 | if (es->bottom == es->top) | |
491 | return 0; | |
492 | if (top) | |
493 | i = es->top; /* last error */ | |
494 | else | |
495 | i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */ | |
496 | ||
497 | ret = es->err_buffer[i]; | |
498 | if (inc) { | |
499 | es->bottom = i; | |
500 | es->err_buffer[i] = 0; | |
501 | } | |
502 | ||
503 | if ((file != NULL) && (line != NULL)) { | |
504 | if (es->err_file[i] == NULL) { | |
505 | *file = "NA"; | |
506 | if (line != NULL) | |
507 | *line = 0; | |
508 | } else { | |
509 | *file = es->err_file[i]; | |
510 | if (line != NULL) | |
511 | *line = es->err_line[i]; | |
512 | } | |
513 | } | |
514 | ||
515 | if (data == NULL) { | |
516 | if (inc) { | |
517 | err_clear_data(es, i); | |
518 | } | |
519 | } else { | |
520 | if (es->err_data[i] == NULL) { | |
521 | *data = ""; | |
522 | if (flags != NULL) | |
523 | *flags = 0; | |
524 | } else { | |
525 | *data = es->err_data[i]; | |
526 | if (flags != NULL) | |
527 | *flags = es->err_data_flags[i]; | |
528 | } | |
529 | } | |
530 | return ret; | |
531 | } | |
d02b48c6 | 532 | |
e5c84d51 | 533 | void ERR_error_string_n(unsigned long e, char *buf, size_t len) |
0f113f3e MC |
534 | { |
535 | char lsbuf[64], fsbuf[64], rsbuf[64]; | |
536 | const char *ls, *fs, *rs; | |
537 | unsigned long l, f, r; | |
538 | ||
e5c13615 MC |
539 | if (len == 0) |
540 | return; | |
541 | ||
0f113f3e MC |
542 | l = ERR_GET_LIB(e); |
543 | f = ERR_GET_FUNC(e); | |
544 | r = ERR_GET_REASON(e); | |
545 | ||
546 | ls = ERR_lib_error_string(e); | |
547 | fs = ERR_func_error_string(e); | |
548 | rs = ERR_reason_error_string(e); | |
549 | ||
550 | if (ls == NULL) | |
551 | BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l); | |
552 | if (fs == NULL) | |
553 | BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f); | |
554 | if (rs == NULL) | |
555 | BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r); | |
556 | ||
557 | BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls ? ls : lsbuf, | |
558 | fs ? fs : fsbuf, rs ? rs : rsbuf); | |
559 | if (strlen(buf) == len - 1) { | |
560 | /* | |
561 | * output may be truncated; make sure we always have 5 | |
562 | * colon-separated fields, i.e. 4 colons ... | |
563 | */ | |
e5c84d51 | 564 | #define NUM_COLONS 4 |
0f113f3e MC |
565 | if (len > NUM_COLONS) { /* ... if possible */ |
566 | int i; | |
567 | char *s = buf; | |
568 | ||
569 | for (i = 0; i < NUM_COLONS; i++) { | |
570 | char *colon = strchr(s, ':'); | |
571 | if (colon == NULL || colon > &buf[len - 1] - NUM_COLONS + i) { | |
572 | /* | |
573 | * set colon no. i at last possible position (buf[len-1] | |
574 | * is the terminating 0) | |
575 | */ | |
576 | colon = &buf[len - 1] - NUM_COLONS + i; | |
577 | *colon = ':'; | |
578 | } | |
579 | s = colon + 1; | |
580 | } | |
581 | } | |
582 | } | |
583 | } | |
e5c84d51 | 584 | |
0f113f3e MC |
585 | /* |
586 | * ERR_error_string_n should be used instead for ret != NULL as | |
587 | * ERR_error_string cannot know how large the buffer is | |
588 | */ | |
e5c84d51 | 589 | char *ERR_error_string(unsigned long e, char *ret) |
0f113f3e MC |
590 | { |
591 | static char buf[256]; | |
e5c84d51 | 592 | |
0f113f3e MC |
593 | if (ret == NULL) |
594 | ret = buf; | |
595 | ERR_error_string_n(e, ret, 256); | |
d02b48c6 | 596 | |
0f113f3e MC |
597 | return ret; |
598 | } | |
d02b48c6 | 599 | |
6b691a5c | 600 | const char *ERR_lib_error_string(unsigned long e) |
0f113f3e MC |
601 | { |
602 | ERR_STRING_DATA d, *p; | |
603 | unsigned long l; | |
d02b48c6 | 604 | |
c2e4e5d2 RL |
605 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { |
606 | return NULL; | |
607 | } | |
7b8e12d2 | 608 | |
0f113f3e MC |
609 | l = ERR_GET_LIB(e); |
610 | d.error = ERR_PACK(l, 0, 0); | |
3e47caff | 611 | p = int_err_get_item(&d); |
0f113f3e MC |
612 | return ((p == NULL) ? NULL : p->string); |
613 | } | |
d02b48c6 | 614 | |
6b691a5c | 615 | const char *ERR_func_error_string(unsigned long e) |
0f113f3e MC |
616 | { |
617 | ERR_STRING_DATA d, *p; | |
618 | unsigned long l, f; | |
619 | ||
c2e4e5d2 RL |
620 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { |
621 | return NULL; | |
622 | } | |
7b8e12d2 | 623 | |
0f113f3e MC |
624 | l = ERR_GET_LIB(e); |
625 | f = ERR_GET_FUNC(e); | |
626 | d.error = ERR_PACK(l, f, 0); | |
3e47caff | 627 | p = int_err_get_item(&d); |
0f113f3e MC |
628 | return ((p == NULL) ? NULL : p->string); |
629 | } | |
d02b48c6 | 630 | |
6b691a5c | 631 | const char *ERR_reason_error_string(unsigned long e) |
0f113f3e MC |
632 | { |
633 | ERR_STRING_DATA d, *p = NULL; | |
634 | unsigned long l, r; | |
635 | ||
c2e4e5d2 RL |
636 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { |
637 | return NULL; | |
638 | } | |
7b8e12d2 | 639 | |
0f113f3e MC |
640 | l = ERR_GET_LIB(e); |
641 | r = ERR_GET_REASON(e); | |
642 | d.error = ERR_PACK(l, 0, r); | |
3e47caff | 643 | p = int_err_get_item(&d); |
0f113f3e MC |
644 | if (!p) { |
645 | d.error = ERR_PACK(0, 0, r); | |
3e47caff | 646 | p = int_err_get_item(&d); |
0f113f3e MC |
647 | } |
648 | return ((p == NULL) ? NULL : p->string); | |
649 | } | |
d02b48c6 | 650 | |
21e00174 | 651 | void err_delete_thread_state(void) |
0f113f3e | 652 | { |
af6de400 | 653 | ERR_STATE *state = CRYPTO_THREAD_get_local(&err_thread_local); |
8509dcc9 AG |
654 | if (state == NULL) |
655 | return; | |
0f113f3e | 656 | |
8509dcc9 AG |
657 | CRYPTO_THREAD_set_local(&err_thread_local, NULL); |
658 | ERR_STATE_free(state); | |
0f113f3e | 659 | } |
d02b48c6 | 660 | |
1aca3618 | 661 | #if OPENSSL_API_COMPAT < 0x10100000L |
21e00174 RL |
662 | void ERR_remove_thread_state(void *dummy) |
663 | { | |
664 | } | |
665 | #endif | |
666 | ||
98186eb4 | 667 | #if OPENSSL_API_COMPAT < 0x10000000L |
4c329696 | 668 | void ERR_remove_state(unsigned long pid) |
0f113f3e | 669 | { |
0f113f3e | 670 | } |
4c329696 GT |
671 | #endif |
672 | ||
c2e4e5d2 | 673 | DEFINE_RUN_ONCE_STATIC(err_do_init) |
8509dcc9 | 674 | { |
73bc5370 | 675 | set_err_thread_local = 1; |
c2e4e5d2 | 676 | return CRYPTO_THREAD_init_local(&err_thread_local, NULL); |
8509dcc9 AG |
677 | } |
678 | ||
6b691a5c | 679 | ERR_STATE *ERR_get_state(void) |
0f113f3e | 680 | { |
8509dcc9 AG |
681 | ERR_STATE *state = NULL; |
682 | ||
c2e4e5d2 RL |
683 | if (!RUN_ONCE(&err_init, err_do_init)) |
684 | return NULL; | |
8509dcc9 AG |
685 | |
686 | state = CRYPTO_THREAD_get_local(&err_thread_local); | |
687 | ||
688 | if (state == NULL) { | |
689 | state = OPENSSL_zalloc(sizeof(*state)); | |
690 | if (state == NULL) | |
691 | return NULL; | |
692 | ||
af6de400 BE |
693 | if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE) |
694 | || !CRYPTO_THREAD_set_local(&err_thread_local, state)) { | |
8509dcc9 AG |
695 | ERR_STATE_free(state); |
696 | return NULL; | |
0f113f3e | 697 | } |
0fc32b07 MC |
698 | |
699 | /* Ignore failures from these */ | |
f672aee4 | 700 | OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); |
0f113f3e | 701 | } |
8509dcc9 AG |
702 | |
703 | return state; | |
0f113f3e | 704 | } |
d02b48c6 | 705 | |
6b691a5c | 706 | int ERR_get_next_error_library(void) |
0f113f3e | 707 | { |
3e47caff RS |
708 | int ret; |
709 | ||
c2e4e5d2 RL |
710 | if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { |
711 | return 0; | |
712 | } | |
7b8e12d2 AG |
713 | |
714 | CRYPTO_THREAD_write_lock(err_string_lock); | |
3e47caff | 715 | ret = int_err_library_number++; |
7b8e12d2 | 716 | CRYPTO_THREAD_unlock(err_string_lock); |
3e47caff | 717 | return ret; |
0f113f3e | 718 | } |
58964a49 | 719 | |
6b691a5c | 720 | void ERR_set_error_data(char *data, int flags) |
0f113f3e MC |
721 | { |
722 | ERR_STATE *es; | |
723 | int i; | |
58964a49 | 724 | |
0f113f3e | 725 | es = ERR_get_state(); |
4fc426b7 BE |
726 | if (es == NULL) |
727 | return; | |
58964a49 | 728 | |
0f113f3e MC |
729 | i = es->top; |
730 | if (i == 0) | |
731 | i = ERR_NUM_ERRORS - 1; | |
58964a49 | 732 | |
0f113f3e MC |
733 | err_clear_data(es, i); |
734 | es->err_data[i] = data; | |
735 | es->err_data_flags[i] = flags; | |
736 | } | |
58964a49 | 737 | |
4565c3e3 | 738 | void ERR_add_error_data(int num, ...) |
0f113f3e MC |
739 | { |
740 | va_list args; | |
741 | va_start(args, num); | |
742 | ERR_add_error_vdata(num, args); | |
743 | va_end(args); | |
744 | } | |
78c45722 DSH |
745 | |
746 | void ERR_add_error_vdata(int num, va_list args) | |
0f113f3e MC |
747 | { |
748 | int i, n, s; | |
749 | char *str, *p, *a; | |
750 | ||
751 | s = 80; | |
752 | str = OPENSSL_malloc(s + 1); | |
753 | if (str == NULL) | |
754 | return; | |
755 | str[0] = '\0'; | |
756 | ||
757 | n = 0; | |
758 | for (i = 0; i < num; i++) { | |
759 | a = va_arg(args, char *); | |
e2dba64c RS |
760 | if (a == NULL) |
761 | a = "<NULL>"; | |
0791bef0 RS |
762 | n += strlen(a); |
763 | if (n > s) { | |
764 | s = n + 20; | |
765 | p = OPENSSL_realloc(str, s + 1); | |
766 | if (p == NULL) { | |
767 | OPENSSL_free(str); | |
768 | return; | |
0f113f3e | 769 | } |
0791bef0 | 770 | str = p; |
0f113f3e | 771 | } |
0791bef0 | 772 | OPENSSL_strlcat(str, a, (size_t)s + 1); |
0f113f3e MC |
773 | } |
774 | ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING); | |
775 | } | |
54f64516 RL |
776 | |
777 | int ERR_set_mark(void) | |
0f113f3e MC |
778 | { |
779 | ERR_STATE *es; | |
54f64516 | 780 | |
0f113f3e | 781 | es = ERR_get_state(); |
4fc426b7 BE |
782 | if (es == NULL) |
783 | return 0; | |
54f64516 | 784 | |
0f113f3e MC |
785 | if (es->bottom == es->top) |
786 | return 0; | |
787 | es->err_flags[es->top] |= ERR_FLAG_MARK; | |
788 | return 1; | |
789 | } | |
54f64516 RL |
790 | |
791 | int ERR_pop_to_mark(void) | |
0f113f3e MC |
792 | { |
793 | ERR_STATE *es; | |
794 | ||
795 | es = ERR_get_state(); | |
4fc426b7 BE |
796 | if (es == NULL) |
797 | return 0; | |
0f113f3e MC |
798 | |
799 | while (es->bottom != es->top | |
800 | && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) { | |
801 | err_clear(es, es->top); | |
802 | es->top -= 1; | |
803 | if (es->top == -1) | |
804 | es->top = ERR_NUM_ERRORS - 1; | |
805 | } | |
806 | ||
807 | if (es->bottom == es->top) | |
808 | return 0; | |
809 | es->err_flags[es->top] &= ~ERR_FLAG_MARK; | |
810 | return 1; | |
811 | } |