1 /*
2 * Copyright 1995-2025 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 #if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
11 /*
12 * On VMS, you need to define this to get the declaration of fileno(). The
13 * value 2 is to make sure no function defined in POSIX-2 is left undefined.
14 */
15 # define _POSIX_C_SOURCE 2
16 #endif
17
18 #ifndef OPENSSL_NO_ENGINE
19 /* We need to use some deprecated APIs */
20 # define OPENSSL_SUPPRESS_DEPRECATED
21 # include <openssl/engine.h>
22 #endif
23
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <sys/types.h>
28 #ifndef OPENSSL_NO_POSIX_IO
29 # include <sys/stat.h>
30 # include <fcntl.h>
31 #endif
32 #include <ctype.h>
33 #include <errno.h>
34 #include <openssl/err.h>
35 #include <openssl/x509.h>
36 #include <openssl/x509v3.h>
37 #include <openssl/http.h>
38 #include <openssl/pem.h>
39 #include <openssl/store.h>
40 #include <openssl/pkcs12.h>
41 #include <openssl/ui.h>
42 #include <openssl/safestack.h>
43 #include <openssl/rsa.h>
44 #include <openssl/rand.h>
45 #include <openssl/bn.h>
46 #include <openssl/ssl.h>
47 #include <openssl/core_names.h>
48 #include "s_apps.h"
49 #include "apps.h"
50
51 #include "internal/sockets.h" /* for openssl_fdset() */
52 #include "internal/e_os.h"
53
54 #ifdef _WIN32
55 static int WIN32_rename(const char *from, const char *to);
56 # define rename(from, to) WIN32_rename((from), (to))
57 #endif
58
59 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
60 # include <conio.h>
61 #endif
62
63 #if defined(OPENSSL_SYS_MSDOS) && !defined(_WIN32) || defined(__BORLANDC__)
64 # define _kbhit kbhit
65 #endif
66
67 static BIO *bio_open_default_(const char *filename, char mode, int format,
68 int quiet);
69
70 #define PASS_SOURCE_SIZE_MAX 4
71
72 DEFINE_STACK_OF(CONF)
73
74 typedef struct {
75 const char *name;
76 unsigned long flag;
77 unsigned long mask;
78 } NAME_EX_TBL;
79
80 static int set_table_opts(unsigned long *flags, const char *arg,
81 const NAME_EX_TBL *in_tbl);
82 static int set_multi_opts(unsigned long *flags, const char *arg,
83 const NAME_EX_TBL *in_tbl);
84 int app_init(long mesgwin);
85
86 #ifndef APP_INIT
app_init(long mesgwin)87 int app_init(long mesgwin)
88 {
89 return 1;
90 }
91 #endif
92
ctx_set_verify_locations(SSL_CTX * ctx,const char * CAfile,int noCAfile,const char * CApath,int noCApath,const char * CAstore,int noCAstore)93 int ctx_set_verify_locations(SSL_CTX *ctx,
94 const char *CAfile, int noCAfile,
95 const char *CApath, int noCApath,
96 const char *CAstore, int noCAstore)
97 {
98 if (CAfile == NULL && CApath == NULL && CAstore == NULL) {
99 if (!noCAfile && SSL_CTX_set_default_verify_file(ctx) <= 0)
100 return 0;
101 if (!noCApath && SSL_CTX_set_default_verify_dir(ctx) <= 0)
102 return 0;
103 if (!noCAstore && SSL_CTX_set_default_verify_store(ctx) <= 0)
104 return 0;
105
106 return 1;
107 }
108
109 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
110 return 0;
111 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
112 return 0;
113 if (CAstore != NULL && !SSL_CTX_load_verify_store(ctx, CAstore))
114 return 0;
115 return 1;
116 }
117
118 #ifndef OPENSSL_NO_CT
119
ctx_set_ctlog_list_file(SSL_CTX * ctx,const char * path)120 int ctx_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
121 {
122 if (path == NULL)
123 return SSL_CTX_set_default_ctlog_list_file(ctx);
124
125 return SSL_CTX_set_ctlog_list_file(ctx, path);
126 }
127
128 #endif
129
130 static unsigned long nmflag = 0;
131 static char nmflag_set = 0;
132
set_nameopt(const char * arg)133 int set_nameopt(const char *arg)
134 {
135 int ret = set_name_ex(&nmflag, arg);
136
137 if (ret)
138 nmflag_set = 1;
139
140 return ret;
141 }
142
get_nameopt(void)143 unsigned long get_nameopt(void)
144 {
145 return
146 nmflag_set ? nmflag : XN_FLAG_SEP_CPLUS_SPC | XN_FLAG_FN_SN
147 | ASN1_STRFLGS_ESC_CTRL
148 | ASN1_STRFLGS_UTF8_CONVERT
149 | ASN1_STRFLGS_DUMP_UNKNOWN
150 | ASN1_STRFLGS_DUMP_DER;
151 }
152
dump_cert_text(BIO * out,X509 * x)153 void dump_cert_text(BIO *out, X509 *x)
154 {
155 print_name(out, "subject=", X509_get_subject_name(x));
156 print_name(out, "issuer=", X509_get_issuer_name(x));
157 }
158
wrap_password_callback(char * buf,int bufsiz,int verify,void * userdata)159 int wrap_password_callback(char *buf, int bufsiz, int verify, void *userdata)
160 {
161 return password_callback(buf, bufsiz, verify, (PW_CB_DATA *)userdata);
162 }
163
164 static char *app_get_pass(const char *arg, int keepbio);
165
get_passwd(const char * pass,const char * desc)166 char *get_passwd(const char *pass, const char *desc)
167 {
168 char *result = NULL;
169
170 if (desc == NULL)
171 desc = "<unknown>";
172 if (!app_passwd(pass, NULL, &result, NULL))
173 BIO_printf(bio_err, "Error getting password for %s\n", desc);
174 if (pass != NULL && result == NULL) {
175 BIO_printf(bio_err,
176 "Trying plain input string (better precede with 'pass:')\n");
177 result = OPENSSL_strdup(pass);
178 if (result == NULL)
179 BIO_printf(bio_err,
180 "Out of memory getting password for %s\n", desc);
181 }
182 return result;
183 }
184
app_passwd(const char * arg1,const char * arg2,char ** pass1,char ** pass2)185 int app_passwd(const char *arg1, const char *arg2, char **pass1, char **pass2)
186 {
187 int same = arg1 != NULL && arg2 != NULL && strcmp(arg1, arg2) == 0;
188
189 if (arg1 != NULL) {
190 *pass1 = app_get_pass(arg1, same);
191 if (*pass1 == NULL)
192 return 0;
193 } else if (pass1 != NULL) {
194 *pass1 = NULL;
195 }
196 if (arg2 != NULL) {
197 *pass2 = app_get_pass(arg2, same ? 2 : 0);
198 if (*pass2 == NULL)
199 return 0;
200 } else if (pass2 != NULL) {
201 *pass2 = NULL;
202 }
203 return 1;
204 }
205
app_get_pass(const char * arg,int keepbio)206 static char *app_get_pass(const char *arg, int keepbio)
207 {
208 static BIO *pwdbio = NULL;
209 char *tmp, tpass[APP_PASS_LEN];
210 int i;
211
212 /* PASS_SOURCE_SIZE_MAX = max number of chars before ':' in below strings */
213 if (CHECK_AND_SKIP_PREFIX(arg, "pass:"))
214 return OPENSSL_strdup(arg);
215 if (CHECK_AND_SKIP_PREFIX(arg, "env:")) {
216 tmp = getenv(arg);
217 if (tmp == NULL) {
218 BIO_printf(bio_err, "No environment variable %s\n", arg);
219 return NULL;
220 }
221 return OPENSSL_strdup(tmp);
222 }
223 if (!keepbio || pwdbio == NULL) {
224 if (CHECK_AND_SKIP_PREFIX(arg, "file:")) {
225 pwdbio = BIO_new_file(arg, "r");
226 if (pwdbio == NULL) {
227 BIO_printf(bio_err, "Can't open file %s\n", arg);
228 return NULL;
229 }
230 #if !defined(_WIN32)
231 /*
232 * Under _WIN32, which covers even Win64 and CE, file
233 * descriptors referenced by BIO_s_fd are not inherited
234 * by child process and therefore below is not an option.
235 * It could have been an option if bss_fd.c was operating
236 * on real Windows descriptors, such as those obtained
237 * with CreateFile.
238 */
239 } else if (CHECK_AND_SKIP_PREFIX(arg, "fd:")) {
240 BIO *btmp;
241
242 i = atoi(arg);
243 if (i >= 0)
244 pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
245 if ((i < 0) || pwdbio == NULL) {
246 BIO_printf(bio_err, "Can't access file descriptor %s\n", arg);
247 return NULL;
248 }
249 /*
250 * Can't do BIO_gets on an fd BIO so add a buffering BIO
251 */
252 btmp = BIO_new(BIO_f_buffer());
253 if (btmp == NULL) {
254 BIO_free_all(pwdbio);
255 pwdbio = NULL;
256 BIO_printf(bio_err, "Out of memory\n");
257 return NULL;
258 }
259 pwdbio = BIO_push(btmp, pwdbio);
260 #endif
261 } else if (strcmp(arg, "stdin") == 0) {
262 unbuffer(stdin);
263 pwdbio = dup_bio_in(FORMAT_TEXT);
264 if (pwdbio == NULL) {
265 BIO_printf(bio_err, "Can't open BIO for stdin\n");
266 return NULL;
267 }
268 } else {
269 /* argument syntax error; do not reveal too much about arg */
270 tmp = strchr(arg, ':');
271 if (tmp == NULL || tmp - arg > PASS_SOURCE_SIZE_MAX)
272 BIO_printf(bio_err,
273 "Invalid password argument, missing ':' within the first %d chars\n",
274 PASS_SOURCE_SIZE_MAX + 1);
275 else
276 BIO_printf(bio_err,
277 "Invalid password argument, starting with \"%.*s\"\n",
278 (int)(tmp - arg + 1), arg);
279 return NULL;
280 }
281 }
282 i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
283 if (keepbio != 1) {
284 BIO_free_all(pwdbio);
285 pwdbio = NULL;
286 }
287 if (i <= 0) {
288 BIO_printf(bio_err, "Error reading password from BIO\n");
289 return NULL;
290 }
291 tmp = strchr(tpass, '\n');
292 if (tmp != NULL)
293 *tmp = 0;
294 return OPENSSL_strdup(tpass);
295 }
296
app_conf_try_string(const CONF * conf,const char * group,const char * name)297 char *app_conf_try_string(const CONF *conf, const char *group, const char *name)
298 {
299 char *res;
300
301 ERR_set_mark();
302 res = NCONF_get_string(conf, group, name);
303 if (res == NULL)
304 ERR_pop_to_mark();
305 else
306 ERR_clear_last_mark();
307 return res;
308 }
309
app_conf_try_number(const CONF * conf,const char * group,const char * name,long * result)310 int app_conf_try_number(const CONF *conf, const char *group, const char *name,
311 long *result)
312 {
313 int ok;
314
315 ERR_set_mark();
316 ok = NCONF_get_number(conf, group, name, result);
317 if (!ok)
318 ERR_pop_to_mark();
319 else
320 ERR_clear_last_mark();
321 return ok;
322 }
323
app_load_config_bio(BIO * in,const char * filename)324 CONF *app_load_config_bio(BIO *in, const char *filename)
325 {
326 long errorline = -1;
327 CONF *conf;
328 int i;
329
330 conf = NCONF_new_ex(app_get0_libctx(), NULL);
331 i = NCONF_load_bio(conf, in, &errorline);
332 if (i > 0)
333 return conf;
334
335 if (errorline <= 0) {
336 BIO_printf(bio_err, "%s: Can't load ", opt_getprog());
337 } else {
338 BIO_printf(bio_err, "%s: Error on line %ld of ", opt_getprog(),
339 errorline);
340 }
341 if (filename != NULL)
342 BIO_printf(bio_err, "config file \"%s\"\n", filename);
343 else
344 BIO_printf(bio_err, "config input");
345
346 NCONF_free(conf);
347 return NULL;
348 }
349
app_load_config_verbose(const char * filename,int verbose)350 CONF *app_load_config_verbose(const char *filename, int verbose)
351 {
352 if (verbose) {
353 if (*filename == '\0')
354 BIO_printf(bio_err, "No configuration used\n");
355 else
356 BIO_printf(bio_err, "Using configuration from %s\n", filename);
357 }
358 return app_load_config_internal(filename, 0);
359 }
360
app_load_config_internal(const char * filename,int quiet)361 CONF *app_load_config_internal(const char *filename, int quiet)
362 {
363 BIO *in;
364 CONF *conf;
365
366 if (filename == NULL || *filename != '\0') {
367 if ((in = bio_open_default_(filename, 'r', FORMAT_TEXT, quiet)) == NULL)
368 return NULL;
369 conf = app_load_config_bio(in, filename);
370 BIO_free(in);
371 } else {
372 /* Return empty config if filename is empty string. */
373 conf = NCONF_new_ex(app_get0_libctx(), NULL);
374 }
375 return conf;
376 }
377
app_load_modules(const CONF * config)378 int app_load_modules(const CONF *config)
379 {
380 CONF *to_free = NULL;
381
382 if (config == NULL)
383 config = to_free = app_load_config_quiet(default_config_file);
384 if (config == NULL)
385 return 1;
386
387 if (CONF_modules_load(config, NULL, 0) <= 0) {
388 BIO_printf(bio_err, "Error configuring OpenSSL modules\n");
389 ERR_print_errors(bio_err);
390 NCONF_free(to_free);
391 return 0;
392 }
393 NCONF_free(to_free);
394 return 1;
395 }
396
add_oid_section(CONF * conf)397 int add_oid_section(CONF *conf)
398 {
399 char *p;
400 STACK_OF(CONF_VALUE) *sktmp;
401 CONF_VALUE *cnf;
402 int i;
403
404 if ((p = app_conf_try_string(conf, NULL, "oid_section")) == NULL)
405 return 1;
406 if ((sktmp = NCONF_get_section(conf, p)) == NULL) {
407 BIO_printf(bio_err, "problem loading oid section %s\n", p);
408 return 0;
409 }
410 for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
411 cnf = sk_CONF_VALUE_value(sktmp, i);
412 if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
413 BIO_printf(bio_err, "problem creating object %s=%s\n",
414 cnf->name, cnf->value);
415 return 0;
416 }
417 }
418 return 1;
419 }
420
app_load_config_modules(const char * configfile)421 CONF *app_load_config_modules(const char *configfile)
422 {
423 CONF *conf = NULL;
424
425 if (configfile != NULL) {
426 if ((conf = app_load_config_verbose(configfile, 1)) == NULL)
427 return NULL;
428 if (configfile != default_config_file && !app_load_modules(conf)) {
429 NCONF_free(conf);
430 conf = NULL;
431 }
432 }
433 return conf;
434 }
435
436 #define IS_HTTP(uri) ((uri) != NULL && HAS_PREFIX(uri, OSSL_HTTP_PREFIX))
437 #define IS_HTTPS(uri) ((uri) != NULL && HAS_PREFIX(uri, OSSL_HTTPS_PREFIX))
438
load_cert_pass(const char * uri,int format,int maybe_stdin,const char * pass,const char * desc)439 X509 *load_cert_pass(const char *uri, int format, int maybe_stdin,
440 const char *pass, const char *desc)
441 {
442 X509 *cert = NULL;
443
444 if (desc == NULL)
445 desc = "certificate";
446 if (IS_HTTPS(uri)) {
447 BIO_printf(bio_err, "Loading %s over HTTPS is unsupported\n", desc);
448 } else if (IS_HTTP(uri)) {
449 cert = X509_load_http(uri, NULL, NULL, 0 /* timeout */);
450 if (cert == NULL) {
451 ERR_print_errors(bio_err);
452 BIO_printf(bio_err, "Unable to load %s from %s\n", desc, uri);
453 }
454 } else {
455 (void)load_key_certs_crls(uri, format, maybe_stdin, pass, desc, 0,
456 NULL, NULL, NULL, &cert, NULL, NULL, NULL);
457 }
458 return cert;
459 }
460
load_crl(const char * uri,int format,int maybe_stdin,const char * desc)461 X509_CRL *load_crl(const char *uri, int format, int maybe_stdin,
462 const char *desc)
463 {
464 X509_CRL *crl = NULL;
465
466 if (desc == NULL)
467 desc = "CRL";
468 if (IS_HTTPS(uri)) {
469 BIO_printf(bio_err, "Loading %s over HTTPS is unsupported\n", desc);
470 } else if (IS_HTTP(uri)) {
471 crl = X509_CRL_load_http(uri, NULL, NULL, 0 /* timeout */);
472 if (crl == NULL) {
473 ERR_print_errors(bio_err);
474 BIO_printf(bio_err, "Unable to load %s from %s\n", desc, uri);
475 }
476 } else {
477 (void)load_key_certs_crls(uri, format, maybe_stdin, NULL, desc, 0,
478 NULL, NULL, NULL, NULL, NULL, &crl, NULL);
479 }
480 return crl;
481 }
482
483 /* Could be simplified if OSSL_STORE supported CSRs, see FR #15725 */
load_csr(const char * file,int format,const char * desc)484 X509_REQ *load_csr(const char *file, int format, const char *desc)
485 {
486 X509_REQ *req = NULL;
487 BIO *in;
488
489 if (format == FORMAT_UNDEF)
490 format = FORMAT_PEM;
491 in = bio_open_default(file, 'r', format);
492 if (in == NULL)
493 goto end;
494
495 if (format == FORMAT_ASN1)
496 req = d2i_X509_REQ_bio(in, NULL);
497 else if (format == FORMAT_PEM)
498 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
499 else
500 print_format_error(format, OPT_FMT_PEMDER);
501
502 end:
503 if (req == NULL) {
504 ERR_print_errors(bio_err);
505 if (desc != NULL)
506 BIO_printf(bio_err, "Unable to load %s\n", desc);
507 }
508 BIO_free(in);
509 return req;
510 }
511
512 /* Better extend OSSL_STORE to support CSRs, see FR #15725 */
load_csr_autofmt(const char * infile,int format,STACK_OF (OPENSSL_STRING)* vfyopts,const char * desc)513 X509_REQ *load_csr_autofmt(const char *infile, int format,
514 STACK_OF(OPENSSL_STRING) *vfyopts, const char *desc)
515 {
516 X509_REQ *csr;
517
518 if (format != FORMAT_UNDEF) {
519 csr = load_csr(infile, format, desc);
520 } else { /* try PEM, then DER */
521 BIO *bio_bak = bio_err;
522
523 bio_err = NULL; /* do not show errors on more than one try */
524 csr = load_csr(infile, FORMAT_PEM, NULL /* desc */);
525 bio_err = bio_bak;
526 if (csr == NULL) {
527 ERR_clear_error();
528 csr = load_csr(infile, FORMAT_ASN1, NULL /* desc */);
529 }
530 if (csr == NULL) {
531 BIO_printf(bio_err, "error: unable to load %s from file '%s'\n",
532 desc, infile);
533 }
534 }
535 if (csr != NULL) {
536 EVP_PKEY *pkey = X509_REQ_get0_pubkey(csr);
537 int ret = do_X509_REQ_verify(csr, pkey, vfyopts);
538
539 if (pkey == NULL || ret < 0)
540 BIO_puts(bio_err, "Warning: error while verifying CSR self-signature\n");
541 else if (ret == 0)
542 BIO_puts(bio_err, "Warning: CSR self-signature does not match the contents\n");
543 return csr;
544 }
545 return csr;
546 }
547
cleanse(char * str)548 void cleanse(char *str)
549 {
550 if (str != NULL)
551 OPENSSL_cleanse(str, strlen(str));
552 }
553
clear_free(char * str)554 void clear_free(char *str)
555 {
556 if (str != NULL)
557 OPENSSL_clear_free(str, strlen(str));
558 }
559
load_key(const char * uri,int format,int may_stdin,const char * pass,ENGINE * e,const char * desc)560 EVP_PKEY *load_key(const char *uri, int format, int may_stdin,
561 const char *pass, ENGINE *e, const char *desc)
562 {
563 EVP_PKEY *pkey = NULL;
564 char *allocated_uri = NULL;
565
566 if (desc == NULL)
567 desc = "private key";
568
569 if (format == FORMAT_ENGINE)
570 uri = allocated_uri = make_engine_uri(e, uri, desc);
571 (void)load_key_certs_crls(uri, format, may_stdin, pass, desc, 0,
572 &pkey, NULL, NULL, NULL, NULL, NULL, NULL);
573
574 OPENSSL_free(allocated_uri);
575 return pkey;
576 }
577
578 /* first try reading public key, on failure resort to loading private key */
load_pubkey(const char * uri,int format,int maybe_stdin,const char * pass,ENGINE * e,const char * desc)579 EVP_PKEY *load_pubkey(const char *uri, int format, int maybe_stdin,
580 const char *pass, ENGINE *e, const char *desc)
581 {
582 EVP_PKEY *pkey = NULL;
583 char *allocated_uri = NULL;
584
585 if (desc == NULL)
586 desc = "public key";
587
588 if (format == FORMAT_ENGINE)
589 uri = allocated_uri = make_engine_uri(e, uri, desc);
590 (void)load_key_certs_crls(uri, format, maybe_stdin, pass, desc, 1,
591 NULL, &pkey, NULL, NULL, NULL, NULL, NULL);
592 if (pkey == NULL)
593 (void)load_key_certs_crls(uri, format, maybe_stdin, pass, desc, 0,
594 &pkey, NULL, NULL, NULL, NULL, NULL, NULL);
595 OPENSSL_free(allocated_uri);
596 return pkey;
597 }
598
load_keyparams_suppress(const char * uri,int format,int maybe_stdin,const char * keytype,const char * desc,int suppress_decode_errors)599 EVP_PKEY *load_keyparams_suppress(const char *uri, int format, int maybe_stdin,
600 const char *keytype, const char *desc,
601 int suppress_decode_errors)
602 {
603 EVP_PKEY *params = NULL;
604
605 if (desc == NULL)
606 desc = "key parameters";
607 (void)load_key_certs_crls(uri, format, maybe_stdin, NULL, desc,
608 suppress_decode_errors,
609 NULL, NULL, ¶ms, NULL, NULL, NULL, NULL);
610 if (params != NULL && keytype != NULL && !EVP_PKEY_is_a(params, keytype)) {
611 ERR_print_errors(bio_err);
612 BIO_printf(bio_err,
613 "Unable to load %s from %s (unexpected parameters type)\n",
614 desc, uri);
615 EVP_PKEY_free(params);
616 params = NULL;
617 }
618 return params;
619 }
620
load_keyparams(const char * uri,int format,int maybe_stdin,const char * keytype,const char * desc)621 EVP_PKEY *load_keyparams(const char *uri, int format, int maybe_stdin,
622 const char *keytype, const char *desc)
623 {
624 return load_keyparams_suppress(uri, format, maybe_stdin, keytype, desc, 0);
625 }
626
app_bail_out(char * fmt,...)627 void app_bail_out(char *fmt, ...)
628 {
629 va_list args;
630
631 va_start(args, fmt);
632 BIO_vprintf(bio_err, fmt, args);
633 va_end(args);
634 ERR_print_errors(bio_err);
635 exit(EXIT_FAILURE);
636 }
637
app_malloc(size_t sz,const char * what)638 void *app_malloc(size_t sz, const char *what)
639 {
640 void *vp = OPENSSL_malloc(sz);
641
642 if (vp == NULL)
643 app_bail_out("%s: Could not allocate %zu bytes for %s\n",
644 opt_getprog(), sz, what);
645 return vp;
646 }
647
next_item(char * opt)648 char *next_item(char *opt) /* in list separated by comma and/or space */
649 {
650 /* advance to separator (comma or whitespace), if any */
651 while (*opt != ',' && !isspace(_UC(*opt)) && *opt != '\0')
652 opt++;
653 if (*opt != '\0') {
654 /* terminate current item */
655 *opt++ = '\0';
656 /* skip over any whitespace after separator */
657 while (isspace(_UC(*opt)))
658 opt++;
659 }
660 return *opt == '\0' ? NULL : opt; /* NULL indicates end of input */
661 }
662
warn_cert_msg(const char * uri,X509 * cert,const char * msg)663 static void warn_cert_msg(const char *uri, X509 *cert, const char *msg)
664 {
665 char *subj = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
666
667 BIO_printf(bio_err, "Warning: certificate from '%s' with subject '%s' %s\n",
668 uri, subj, msg);
669 OPENSSL_free(subj);
670 }
671
warn_cert(const char * uri,X509 * cert,int warn_EE,X509_VERIFY_PARAM * vpm)672 static void warn_cert(const char *uri, X509 *cert, int warn_EE,
673 X509_VERIFY_PARAM *vpm)
674 {
675 uint32_t ex_flags = X509_get_extension_flags(cert);
676 int res = X509_cmp_timeframe(vpm, X509_get0_notBefore(cert),
677 X509_get0_notAfter(cert));
678
679 if (res != 0)
680 warn_cert_msg(uri, cert, res > 0 ? "has expired" : "not yet valid");
681 if (warn_EE && (ex_flags & EXFLAG_V1) == 0 && (ex_flags & EXFLAG_CA) == 0)
682 warn_cert_msg(uri, cert, "is not a CA cert");
683 }
684
warn_certs(const char * uri,STACK_OF (X509)* certs,int warn_EE,X509_VERIFY_PARAM * vpm)685 static void warn_certs(const char *uri, STACK_OF(X509) *certs, int warn_EE,
686 X509_VERIFY_PARAM *vpm)
687 {
688 int i;
689
690 for (i = 0; i < sk_X509_num(certs); i++)
691 warn_cert(uri, sk_X509_value(certs, i), warn_EE, vpm);
692 }
693
load_cert_certs(const char * uri,X509 ** pcert,STACK_OF (X509)** pcerts,int exclude_http,const char * pass,const char * desc,X509_VERIFY_PARAM * vpm)694 int load_cert_certs(const char *uri,
695 X509 **pcert, STACK_OF(X509) **pcerts,
696 int exclude_http, const char *pass, const char *desc,
697 X509_VERIFY_PARAM *vpm)
698 {
699 int ret = 0;
700 char *pass_string;
701
702 if (desc == NULL)
703 desc = pcerts == NULL ? "certificate" : "certificates";
704 if (exclude_http && (HAS_CASE_PREFIX(uri, "http://")
705 || HAS_CASE_PREFIX(uri, "https://"))) {
706 BIO_printf(bio_err, "error: HTTP retrieval not allowed for %s\n", desc);
707 return ret;
708 }
709 pass_string = get_passwd(pass, desc);
710 ret = load_key_certs_crls(uri, FORMAT_UNDEF, 0, pass_string, desc, 0,
711 NULL, NULL, NULL, pcert, pcerts, NULL, NULL);
712 clear_free(pass_string);
713
714 if (ret) {
715 if (pcert != NULL)
716 warn_cert(uri, *pcert, 0, vpm);
717 if (pcerts != NULL)
718 warn_certs(uri, *pcerts, 1, vpm);
719 } else {
720 if (pcerts != NULL) {
721 OSSL_STACK_OF_X509_free(*pcerts);
722 *pcerts = NULL;
723 }
724 }
725 return ret;
726 }
727
STACK_OF(X509)728 STACK_OF(X509) *load_certs_multifile(char *files, const char *pass,
729 const char *desc, X509_VERIFY_PARAM *vpm)
730 {
731 STACK_OF(X509) *certs = NULL;
732 STACK_OF(X509) *result = sk_X509_new_null();
733
734 if (files == NULL)
735 goto err;
736 if (result == NULL)
737 goto oom;
738
739 while (files != NULL) {
740 char *next = next_item(files);
741
742 if (!load_cert_certs(files, NULL, &certs, 0, pass, desc, vpm))
743 goto err;
744 if (!X509_add_certs(result, certs,
745 X509_ADD_FLAG_UP_REF | X509_ADD_FLAG_NO_DUP))
746 goto oom;
747 OSSL_STACK_OF_X509_free(certs);
748 certs = NULL;
749 files = next;
750 }
751 return result;
752
753 oom:
754 BIO_printf(bio_err, "out of memory\n");
755 err:
756 OSSL_STACK_OF_X509_free(certs);
757 OSSL_STACK_OF_X509_free(result);
758 return NULL;
759 }
760
sk_X509_to_store(X509_STORE * store,const STACK_OF (X509)* certs)761 static X509_STORE *sk_X509_to_store(X509_STORE *store /* may be NULL */,
762 const STACK_OF(X509) *certs /* may NULL */)
763 {
764 int i;
765
766 if (store == NULL)
767 store = X509_STORE_new();
768 if (store == NULL)
769 return NULL;
770 for (i = 0; i < sk_X509_num(certs); i++) {
771 if (!X509_STORE_add_cert(store, sk_X509_value(certs, i))) {
772 X509_STORE_free(store);
773 return NULL;
774 }
775 }
776 return store;
777 }
778
779 /*
780 * Create cert store structure with certificates read from given file(s).
781 * Returns pointer to created X509_STORE on success, NULL on error.
782 */
load_certstore(char * input,const char * pass,const char * desc,X509_VERIFY_PARAM * vpm)783 X509_STORE *load_certstore(char *input, const char *pass, const char *desc,
784 X509_VERIFY_PARAM *vpm)
785 {
786 X509_STORE *store = NULL;
787 STACK_OF(X509) *certs = NULL;
788
789 while (input != NULL) {
790 char *next = next_item(input);
791 int ok;
792
793 if (!load_cert_certs(input, NULL, &certs, 1, pass, desc, vpm)) {
794 X509_STORE_free(store);
795 return NULL;
796 }
797 ok = (store = sk_X509_to_store(store, certs)) != NULL;
798 OSSL_STACK_OF_X509_free(certs);
799 certs = NULL;
800 if (!ok)
801 return NULL;
802 input = next;
803 }
804 return store;
805 }
806
807 /*
808 * Initialize or extend, if *certs != NULL, a certificate stack.
809 * The caller is responsible for freeing *certs if its value is left not NULL.
810 */
load_certs(const char * uri,int maybe_stdin,STACK_OF (X509)** certs,const char * pass,const char * desc)811 int load_certs(const char *uri, int maybe_stdin, STACK_OF(X509) **certs,
812 const char *pass, const char *desc)
813 {
814 int ret, was_NULL = *certs == NULL;
815
816 if (desc == NULL)
817 desc = "certificates";
818 ret = load_key_certs_crls(uri, FORMAT_UNDEF, maybe_stdin, pass, desc, 0,
819 NULL, NULL, NULL, NULL, certs, NULL, NULL);
820
821 if (!ret && was_NULL) {
822 OSSL_STACK_OF_X509_free(*certs);
823 *certs = NULL;
824 }
825 return ret;
826 }
827
828 /*
829 * Initialize or extend, if *crls != NULL, a certificate stack.
830 * The caller is responsible for freeing *crls if its value is left not NULL.
831 */
load_crls(const char * uri,STACK_OF (X509_CRL)** crls,const char * pass,const char * desc)832 int load_crls(const char *uri, STACK_OF(X509_CRL) **crls,
833 const char *pass, const char *desc)
834 {
835 int ret, was_NULL = *crls == NULL;
836
837 if (desc == NULL)
838 desc = "CRLs";
839 ret = load_key_certs_crls(uri, FORMAT_UNDEF, 0, pass, desc, 0,
840 NULL, NULL, NULL, NULL, NULL, NULL, crls);
841
842 if (!ret && was_NULL) {
843 sk_X509_CRL_pop_free(*crls, X509_CRL_free);
844 *crls = NULL;
845 }
846 return ret;
847 }
848
format2string(int format)849 static const char *format2string(int format)
850 {
851 switch (format) {
852 case FORMAT_PEM:
853 return "PEM";
854 case FORMAT_ASN1:
855 return "DER";
856 case FORMAT_PVK:
857 return "PVK";
858 case FORMAT_MSBLOB:
859 return "MSBLOB";
860 }
861 return NULL;
862 }
863
864 /* Set type expectation, but set to 0 if objects of multiple types expected. */
865 #define SET_EXPECT(val) \
866 (expect = expect < 0 ? (val) : (expect == (val) ? (val) : 0))
867 #define SET_EXPECT1(pvar, val) \
868 if ((pvar) != NULL) { \
869 *(pvar) = NULL; \
870 SET_EXPECT(val); \
871 }
872 /* Provide (error msg) text for some of the credential types to be loaded. */
873 #define FAIL_NAME \
874 (ppkey != NULL ? "private key" : ppubkey != NULL ? "public key" : \
875 pparams != NULL ? "key parameters" : \
876 pcert != NULL ? "certificate" : pcerts != NULL ? "certificates" : \
877 pcrl != NULL ? "CRL" : pcrls != NULL ? "CRLs" : NULL)
878 /*
879 * Load those types of credentials for which the result pointer is not NULL.
880 * Reads from stdin if 'uri' is NULL and 'maybe_stdin' is nonzero.
881 * 'format' parameter may be FORMAT_PEM, FORMAT_ASN1, or 0 for no hint.
882 * desc may contain more detail on the credential(s) to be loaded for error msg
883 * For non-NULL ppkey, pcert, and pcrl the first suitable value found is loaded.
884 * If pcerts is non-NULL and *pcerts == NULL then a new cert list is allocated.
885 * If pcerts is non-NULL then all available certificates are appended to *pcerts
886 * except any certificate assigned to *pcert.
887 * If pcrls is non-NULL and *pcrls == NULL then a new list of CRLs is allocated.
888 * If pcrls is non-NULL then all available CRLs are appended to *pcerts
889 * except any CRL assigned to *pcrl.
890 * In any case (also on error) the caller is responsible for freeing all members
891 * of *pcerts and *pcrls (as far as they are not NULL).
892 */
load_key_certs_crls(const char * uri,int format,int maybe_stdin,const char * pass,const char * desc,int quiet,EVP_PKEY ** ppkey,EVP_PKEY ** ppubkey,EVP_PKEY ** pparams,X509 ** pcert,STACK_OF (X509)** pcerts,X509_CRL ** pcrl,STACK_OF (X509_CRL)** pcrls)893 int load_key_certs_crls(const char *uri, int format, int maybe_stdin,
894 const char *pass, const char *desc, int quiet,
895 EVP_PKEY **ppkey, EVP_PKEY **ppubkey,
896 EVP_PKEY **pparams,
897 X509 **pcert, STACK_OF(X509) **pcerts,
898 X509_CRL **pcrl, STACK_OF(X509_CRL) **pcrls)
899 {
900 PW_CB_DATA uidata;
901 OSSL_STORE_CTX *ctx = NULL;
902 OSSL_LIB_CTX *libctx = app_get0_libctx();
903 const char *propq = app_get0_propq();
904 int ncerts = 0, ncrls = 0, expect = -1;
905 const char *failed = FAIL_NAME;
906 const char *input_type;
907 OSSL_PARAM itp[2];
908 const OSSL_PARAM *params = NULL;
909
910 /* 'failed' describes type of credential to load for potential error msg */
911 if (failed == NULL) {
912 if (!quiet)
913 BIO_printf(bio_err, "Internal error: nothing was requested to load from %s\n",
914 uri != NULL ? uri : "<stdin>");
915 return 0;
916 }
917 /* suppress any extraneous errors left over from failed parse attempts */
918 ERR_set_mark();
919
920 SET_EXPECT1(ppkey, OSSL_STORE_INFO_PKEY);
921 SET_EXPECT1(ppubkey, OSSL_STORE_INFO_PUBKEY);
922 SET_EXPECT1(pparams, OSSL_STORE_INFO_PARAMS);
923 SET_EXPECT1(pcert, OSSL_STORE_INFO_CERT);
924 /*
925 * Up to here, the follwing holds.
926 * If just one of the ppkey, ppubkey, pparams, and pcert function parameters
927 * is nonzero, expect > 0 indicates which type of credential is expected.
928 * If expect == 0, more than one of them is nonzero (multiple types expected).
929 */
930
931 if (pcerts != NULL) {
932 if (*pcerts == NULL && (*pcerts = sk_X509_new_null()) == NULL) {
933 if (!quiet)
934 BIO_printf(bio_err, "Out of memory loading");
935 goto end;
936 }
937 /*
938 * Adapt the 'expect' variable:
939 * set to OSSL_STORE_INFO_CERT if no other type is expected so far,
940 * otherwise set to 0 (indicating that multiple types are expected).
941 */
942 SET_EXPECT(OSSL_STORE_INFO_CERT);
943 }
944 SET_EXPECT1(pcrl, OSSL_STORE_INFO_CRL);
945 if (pcrls != NULL) {
946 if (*pcrls == NULL && (*pcrls = sk_X509_CRL_new_null()) == NULL) {
947 if (!quiet)
948 BIO_printf(bio_err, "Out of memory loading");
949 goto end;
950 }
951 /*
952 * Adapt the 'expect' variable:
953 * set to OSSL_STORE_INFO_CRL if no other type is expected so far,
954 * otherwise set to 0 (indicating that multiple types are expected).
955 */
956 SET_EXPECT(OSSL_STORE_INFO_CRL);
957 }
958
959 uidata.password = pass;
960 uidata.prompt_info = uri;
961
962 if ((input_type = format2string(format)) != NULL) {
963 itp[0] = OSSL_PARAM_construct_utf8_string(OSSL_STORE_PARAM_INPUT_TYPE,
964 (char *)input_type, 0);
965 itp[1] = OSSL_PARAM_construct_end();
966 params = itp;
967 }
968
969 if (uri == NULL) {
970 BIO *bio;
971
972 if (!maybe_stdin) {
973 if (!quiet)
974 BIO_printf(bio_err, "No filename or uri specified for loading\n");
975 goto end;
976 }
977 uri = "<stdin>";
978 unbuffer(stdin);
979 bio = BIO_new_fp(stdin, 0);
980 if (bio != NULL) {
981 ctx = OSSL_STORE_attach(bio, "file", libctx, propq,
982 get_ui_method(), &uidata, params,
983 NULL, NULL);
984 BIO_free(bio);
985 }
986 } else {
987 ctx = OSSL_STORE_open_ex(uri, libctx, propq, get_ui_method(), &uidata,
988 params, NULL, NULL);
989 }
990 if (ctx == NULL) {
991 if (!quiet)
992 BIO_printf(bio_err, "Could not open file or uri for loading");
993 goto end;
994 }
995 /* expect == 0 means here multiple types of credentials are to be loaded */
996 if (expect > 0 && !OSSL_STORE_expect(ctx, expect)) {
997 if (!quiet)
998 BIO_printf(bio_err, "Internal error trying to load");
999 goto end;
1000 }
1001
1002 failed = NULL;
1003 /* from here, failed != NULL only if actually an error has been detected */
1004
1005 while ((ppkey != NULL || ppubkey != NULL || pparams != NULL
1006 || pcert != NULL || pcerts != NULL || pcrl != NULL || pcrls != NULL)
1007 && !OSSL_STORE_eof(ctx)) {
1008 OSSL_STORE_INFO *info = OSSL_STORE_load(ctx);
1009 int type, ok = 1;
1010
1011 /*
1012 * This can happen (for example) if we attempt to load a file with
1013 * multiple different types of things in it - but the thing we just
1014 * tried to load wasn't one of the ones we wanted, e.g. if we're trying
1015 * to load a certificate but the file has both the private key and the
1016 * certificate in it. We just retry until eof.
1017 */
1018 if (info == NULL) {
1019 continue;
1020 }
1021
1022 type = OSSL_STORE_INFO_get_type(info);
1023 switch (type) {
1024 case OSSL_STORE_INFO_PKEY:
1025 if (ppkey != NULL) {
1026 ok = (*ppkey = OSSL_STORE_INFO_get1_PKEY(info)) != NULL;
1027 if (ok)
1028 ppkey = NULL;
1029 break;
1030 }
1031 /*
1032 * An EVP_PKEY with private parts also holds the public parts,
1033 * so if the caller asked for a public key, and we got a private
1034 * key, we can still pass it back.
1035 */
1036 /* fall through */
1037 case OSSL_STORE_INFO_PUBKEY:
1038 if (ppubkey != NULL) {
1039 ok = (*ppubkey = OSSL_STORE_INFO_get1_PUBKEY(info)) != NULL;
1040 if (ok)
1041 ppubkey = NULL;
1042 }
1043 break;
1044 case OSSL_STORE_INFO_PARAMS:
1045 if (pparams != NULL) {
1046 ok = (*pparams = OSSL_STORE_INFO_get1_PARAMS(info)) != NULL;
1047 if (ok)
1048 pparams = NULL;
1049 }
1050 break;
1051 case OSSL_STORE_INFO_CERT:
1052 if (pcert != NULL) {
1053 ok = (*pcert = OSSL_STORE_INFO_get1_CERT(info)) != NULL;
1054 if (ok)
1055 pcert = NULL;
1056 } else if (pcerts != NULL) {
1057 ok = X509_add_cert(*pcerts,
1058 OSSL_STORE_INFO_get1_CERT(info),
1059 X509_ADD_FLAG_DEFAULT);
1060 }
1061 ncerts += ok;
1062 break;
1063 case OSSL_STORE_INFO_CRL:
1064 if (pcrl != NULL) {
1065 ok = (*pcrl = OSSL_STORE_INFO_get1_CRL(info)) != NULL;
1066 if (ok)
1067 pcrl = NULL;
1068 } else if (pcrls != NULL) {
1069 ok = sk_X509_CRL_push(*pcrls, OSSL_STORE_INFO_get1_CRL(info));
1070 }
1071 ncrls += ok;
1072 break;
1073 default:
1074 /* skip any other type; ok stays == 1 */
1075 break;
1076 }
1077 OSSL_STORE_INFO_free(info);
1078 if (!ok) {
1079 failed = OSSL_STORE_INFO_type_string(type);
1080 if (!quiet)
1081 BIO_printf(bio_err, "Error reading");
1082 break;
1083 }
1084 }
1085
1086 end:
1087 OSSL_STORE_close(ctx);
1088
1089 /* see if any of the requested types of credentials was not found */
1090 if (failed == NULL) {
1091 if (ncerts > 0)
1092 pcerts = NULL;
1093 if (ncrls > 0)
1094 pcrls = NULL;
1095 failed = FAIL_NAME;
1096 if (failed != NULL && !quiet)
1097 BIO_printf(bio_err, "Could not find");
1098 }
1099
1100 if (failed != NULL && !quiet) {
1101 unsigned long err = ERR_peek_last_error();
1102
1103 /* continue the error message with the type of credential affected */
1104 if (desc != NULL && strstr(desc, failed) != NULL) {
1105 BIO_printf(bio_err, " %s", desc);
1106 } else {
1107 BIO_printf(bio_err, " %s", failed);
1108 if (desc != NULL)
1109 BIO_printf(bio_err, " of %s", desc);
1110 }
1111 if (uri != NULL)
1112 BIO_printf(bio_err, " from %s", uri);
1113 if (ERR_SYSTEM_ERROR(err)) {
1114 /* provide more readable diagnostic output */
1115 BIO_printf(bio_err, ": %s", strerror(ERR_GET_REASON(err)));
1116 ERR_pop_to_mark();
1117 ERR_set_mark();
1118 }
1119 BIO_printf(bio_err, "\n");
1120 ERR_print_errors(bio_err);
1121 }
1122 if (quiet || failed == NULL)
1123 /* clear any suppressed or spurious errors */
1124 ERR_pop_to_mark();
1125 else
1126 ERR_clear_last_mark();
1127 return failed == NULL;
1128 }
1129
1130 #define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
1131 #define X509V3_EXT_DEFAULT 0 /* Return error for unknown exts */
1132 #define X509V3_EXT_ERROR_UNKNOWN (1L << 16) /* Print error for unknown exts */
1133 #define X509V3_EXT_PARSE_UNKNOWN (2L << 16) /* ASN1 parse unknown extensions */
1134 #define X509V3_EXT_DUMP_UNKNOWN (3L << 16) /* BIO_dump unknown extensions */
1135
1136 #define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1137 X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1138
set_cert_ex(unsigned long * flags,const char * arg)1139 int set_cert_ex(unsigned long *flags, const char *arg)
1140 {
1141 static const NAME_EX_TBL cert_tbl[] = {
1142 {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
1143 {"ca_default", X509_FLAG_CA, 0xffffffffl},
1144 {"no_header", X509_FLAG_NO_HEADER, 0},
1145 {"no_version", X509_FLAG_NO_VERSION, 0},
1146 {"no_serial", X509_FLAG_NO_SERIAL, 0},
1147 {"no_signame", X509_FLAG_NO_SIGNAME, 0},
1148 {"no_validity", X509_FLAG_NO_VALIDITY, 0},
1149 {"no_subject", X509_FLAG_NO_SUBJECT, 0},
1150 {"no_issuer", X509_FLAG_NO_ISSUER, 0},
1151 {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1152 {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1153 {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1154 {"no_aux", X509_FLAG_NO_AUX, 0},
1155 {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1156 {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1157 {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1158 {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1159 {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1160 {NULL, 0, 0}
1161 };
1162 return set_multi_opts(flags, arg, cert_tbl);
1163 }
1164
set_name_ex(unsigned long * flags,const char * arg)1165 int set_name_ex(unsigned long *flags, const char *arg)
1166 {
1167 static const NAME_EX_TBL ex_tbl[] = {
1168 {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1169 {"esc_2254", ASN1_STRFLGS_ESC_2254, 0},
1170 {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1171 {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1172 {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1173 {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1174 {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1175 {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1176 {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1177 {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1178 {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1179 {"compat", XN_FLAG_COMPAT, 0xffffffffL},
1180 {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1181 {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1182 {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1183 {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1184 {"dn_rev", XN_FLAG_DN_REV, 0},
1185 {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1186 {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1187 {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1188 {"align", XN_FLAG_FN_ALIGN, 0},
1189 {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1190 {"space_eq", XN_FLAG_SPC_EQ, 0},
1191 {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1192 {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1193 {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
1194 {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1195 {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1196 {NULL, 0, 0}
1197 };
1198 if (set_multi_opts(flags, arg, ex_tbl) == 0)
1199 return 0;
1200 if (*flags != XN_FLAG_COMPAT
1201 && (*flags & XN_FLAG_SEP_MASK) == 0)
1202 *flags |= XN_FLAG_SEP_CPLUS_SPC;
1203 return 1;
1204 }
1205
set_dateopt(unsigned long * dateopt,const char * arg)1206 int set_dateopt(unsigned long *dateopt, const char *arg)
1207 {
1208 if (OPENSSL_strcasecmp(arg, "rfc_822") == 0)
1209 *dateopt = ASN1_DTFLGS_RFC822;
1210 else if (OPENSSL_strcasecmp(arg, "iso_8601") == 0)
1211 *dateopt = ASN1_DTFLGS_ISO8601;
1212 else
1213 return 0;
1214 return 1;
1215 }
1216
set_ext_copy(int * copy_type,const char * arg)1217 int set_ext_copy(int *copy_type, const char *arg)
1218 {
1219 if (OPENSSL_strcasecmp(arg, "none") == 0)
1220 *copy_type = EXT_COPY_NONE;
1221 else if (OPENSSL_strcasecmp(arg, "copy") == 0)
1222 *copy_type = EXT_COPY_ADD;
1223 else if (OPENSSL_strcasecmp(arg, "copyall") == 0)
1224 *copy_type = EXT_COPY_ALL;
1225 else
1226 return 0;
1227 return 1;
1228 }
1229
copy_extensions(X509 * x,X509_REQ * req,int copy_type)1230 int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1231 {
1232 STACK_OF(X509_EXTENSION) *exts;
1233 int i, ret = 0;
1234
1235 if (x == NULL || req == NULL)
1236 return 0;
1237 if (copy_type == EXT_COPY_NONE)
1238 return 1;
1239 exts = X509_REQ_get_extensions(req);
1240
1241 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1242 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
1243 ASN1_OBJECT *obj = X509_EXTENSION_get_object(ext);
1244 int idx = X509_get_ext_by_OBJ(x, obj, -1);
1245
1246 /* Does extension exist in target? */
1247 if (idx != -1) {
1248 /* If normal copy don't override existing extension */
1249 if (copy_type == EXT_COPY_ADD)
1250 continue;
1251 /* Delete all extensions of same type */
1252 do {
1253 X509_EXTENSION_free(X509_delete_ext(x, idx));
1254 idx = X509_get_ext_by_OBJ(x, obj, -1);
1255 } while (idx != -1);
1256 }
1257 if (!X509_add_ext(x, ext, -1))
1258 goto end;
1259 }
1260 ret = 1;
1261
1262 end:
1263 sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1264 return ret;
1265 }
1266
set_multi_opts(unsigned long * flags,const char * arg,const NAME_EX_TBL * in_tbl)1267 static int set_multi_opts(unsigned long *flags, const char *arg,
1268 const NAME_EX_TBL *in_tbl)
1269 {
1270 STACK_OF(CONF_VALUE) *vals;
1271 CONF_VALUE *val;
1272 int i, ret = 1;
1273
1274 if (!arg)
1275 return 0;
1276 vals = X509V3_parse_list(arg);
1277 for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1278 val = sk_CONF_VALUE_value(vals, i);
1279 if (!set_table_opts(flags, val->name, in_tbl))
1280 ret = 0;
1281 }
1282 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1283 return ret;
1284 }
1285
set_table_opts(unsigned long * flags,const char * arg,const NAME_EX_TBL * in_tbl)1286 static int set_table_opts(unsigned long *flags, const char *arg,
1287 const NAME_EX_TBL *in_tbl)
1288 {
1289 char c;
1290 const NAME_EX_TBL *ptbl;
1291
1292 c = arg[0];
1293 if (c == '-') {
1294 c = 0;
1295 arg++;
1296 } else if (c == '+') {
1297 c = 1;
1298 arg++;
1299 } else {
1300 c = 1;
1301 }
1302
1303 for (ptbl = in_tbl; ptbl->name; ptbl++) {
1304 if (OPENSSL_strcasecmp(arg, ptbl->name) == 0) {
1305 *flags &= ~ptbl->mask;
1306 if (c)
1307 *flags |= ptbl->flag;
1308 else
1309 *flags &= ~ptbl->flag;
1310 return 1;
1311 }
1312 }
1313 return 0;
1314 }
1315
print_name(BIO * out,const char * title,const X509_NAME * nm)1316 void print_name(BIO *out, const char *title, const X509_NAME *nm)
1317 {
1318 char *buf;
1319 char mline = 0;
1320 int indent = 0;
1321 unsigned long lflags = get_nameopt();
1322
1323 if (out == NULL)
1324 return;
1325 if (title != NULL)
1326 BIO_puts(out, title);
1327 if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1328 mline = 1;
1329 indent = 4;
1330 }
1331 if (lflags == XN_FLAG_COMPAT) {
1332 buf = X509_NAME_oneline(nm, 0, 0);
1333 BIO_puts(out, buf);
1334 BIO_puts(out, "\n");
1335 OPENSSL_free(buf);
1336 } else {
1337 if (mline)
1338 BIO_puts(out, "\n");
1339 X509_NAME_print_ex(out, nm, indent, lflags);
1340 BIO_puts(out, "\n");
1341 }
1342 }
1343
print_bignum_var(BIO * out,const BIGNUM * in,const char * var,int len,unsigned char * buffer)1344 void print_bignum_var(BIO *out, const BIGNUM *in, const char *var,
1345 int len, unsigned char *buffer)
1346 {
1347 BIO_printf(out, " static unsigned char %s_%d[] = {", var, len);
1348 if (BN_is_zero(in)) {
1349 BIO_printf(out, "\n 0x00");
1350 } else {
1351 int i, l;
1352
1353 l = BN_bn2bin(in, buffer);
1354 for (i = 0; i < l; i++) {
1355 BIO_printf(out, (i % 10) == 0 ? "\n " : " ");
1356 if (i < l - 1)
1357 BIO_printf(out, "0x%02X,", buffer[i]);
1358 else
1359 BIO_printf(out, "0x%02X", buffer[i]);
1360 }
1361 }
1362 BIO_printf(out, "\n };\n");
1363 }
1364
print_array(BIO * out,const char * title,int len,const unsigned char * d)1365 void print_array(BIO *out, const char *title, int len, const unsigned char *d)
1366 {
1367 int i;
1368
1369 BIO_printf(out, "unsigned char %s[%d] = {", title, len);
1370 for (i = 0; i < len; i++) {
1371 if ((i % 10) == 0)
1372 BIO_printf(out, "\n ");
1373 if (i < len - 1)
1374 BIO_printf(out, "0x%02X, ", d[i]);
1375 else
1376 BIO_printf(out, "0x%02X", d[i]);
1377 }
1378 BIO_printf(out, "\n};\n");
1379 }
1380
setup_verify(const char * CAfile,int noCAfile,const char * CApath,int noCApath,const char * CAstore,int noCAstore)1381 X509_STORE *setup_verify(const char *CAfile, int noCAfile,
1382 const char *CApath, int noCApath,
1383 const char *CAstore, int noCAstore)
1384 {
1385 X509_STORE *store = X509_STORE_new();
1386 X509_LOOKUP *lookup;
1387 OSSL_LIB_CTX *libctx = app_get0_libctx();
1388 const char *propq = app_get0_propq();
1389
1390 if (store == NULL)
1391 goto end;
1392
1393 if (CAfile != NULL || !noCAfile) {
1394 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1395 if (lookup == NULL)
1396 goto end;
1397 if (CAfile != NULL) {
1398 if (X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_PEM,
1399 libctx, propq) <= 0) {
1400 ERR_clear_error();
1401 if (X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_ASN1,
1402 libctx, propq) <= 0) {
1403 BIO_printf(bio_err, "Error loading file %s\n", CAfile);
1404 goto end;
1405 }
1406 }
1407 } else {
1408 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT,
1409 libctx, propq);
1410 }
1411 }
1412
1413 if (CApath != NULL || !noCApath) {
1414 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1415 if (lookup == NULL)
1416 goto end;
1417 if (CApath != NULL) {
1418 if (X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM) <= 0) {
1419 BIO_printf(bio_err, "Error loading directory %s\n", CApath);
1420 goto end;
1421 }
1422 } else {
1423 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1424 }
1425 }
1426
1427 if (CAstore != NULL || !noCAstore) {
1428 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_store());
1429 if (lookup == NULL)
1430 goto end;
1431 if (!X509_LOOKUP_add_store_ex(lookup, CAstore, libctx, propq)) {
1432 if (CAstore != NULL)
1433 BIO_printf(bio_err, "Error loading store URI %s\n", CAstore);
1434 goto end;
1435 }
1436 }
1437
1438 ERR_clear_error();
1439 return store;
1440 end:
1441 ERR_print_errors(bio_err);
1442 X509_STORE_free(store);
1443 return NULL;
1444 }
1445
index_serial_hash(const OPENSSL_CSTRING * a)1446 static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
1447 {
1448 const char *n;
1449
1450 n = a[DB_serial];
1451 while (*n == '0')
1452 n++;
1453 return OPENSSL_LH_strhash(n);
1454 }
1455
index_serial_cmp(const OPENSSL_CSTRING * a,const OPENSSL_CSTRING * b)1456 static int index_serial_cmp(const OPENSSL_CSTRING *a,
1457 const OPENSSL_CSTRING *b)
1458 {
1459 const char *aa, *bb;
1460
1461 for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1462 for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1463 return strcmp(aa, bb);
1464 }
1465
index_name_qual(char ** a)1466 static int index_name_qual(char **a)
1467 {
1468 return (a[0][0] == 'V');
1469 }
1470
index_name_hash(const OPENSSL_CSTRING * a)1471 static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
1472 {
1473 return OPENSSL_LH_strhash(a[DB_name]);
1474 }
1475
index_name_cmp(const OPENSSL_CSTRING * a,const OPENSSL_CSTRING * b)1476 int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
1477 {
1478 return strcmp(a[DB_name], b[DB_name]);
1479 }
1480
IMPLEMENT_LHASH_HASH_FN(index_serial,OPENSSL_CSTRING)1481 static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
1482 static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
1483 static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
1484 static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
1485 #undef BSIZE
1486 #define BSIZE 256
1487 BIGNUM *load_serial(const char *serialfile, int *exists, int create,
1488 ASN1_INTEGER **retai)
1489 {
1490 BIO *in = NULL;
1491 BIGNUM *ret = NULL;
1492 char buf[1024];
1493 ASN1_INTEGER *ai = NULL;
1494
1495 ai = ASN1_INTEGER_new();
1496 if (ai == NULL)
1497 goto err;
1498
1499 in = BIO_new_file(serialfile, "r");
1500 if (exists != NULL)
1501 *exists = in != NULL;
1502 if (in == NULL) {
1503 if (!create) {
1504 perror(serialfile);
1505 goto err;
1506 }
1507 ERR_clear_error();
1508 ret = BN_new();
1509 if (ret == NULL) {
1510 BIO_printf(bio_err, "Out of memory\n");
1511 } else if (!rand_serial(ret, ai)) {
1512 BIO_printf(bio_err, "Error creating random number to store in %s\n",
1513 serialfile);
1514 BN_free(ret);
1515 ret = NULL;
1516 }
1517 } else {
1518 if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1519 BIO_printf(bio_err, "Unable to load number from %s\n",
1520 serialfile);
1521 goto err;
1522 }
1523 ret = ASN1_INTEGER_to_BN(ai, NULL);
1524 if (ret == NULL) {
1525 BIO_printf(bio_err, "Error converting number from bin to BIGNUM\n");
1526 goto err;
1527 }
1528 }
1529
1530 if (ret != NULL && retai != NULL) {
1531 *retai = ai;
1532 ai = NULL;
1533 }
1534 err:
1535 if (ret == NULL)
1536 ERR_print_errors(bio_err);
1537 BIO_free(in);
1538 ASN1_INTEGER_free(ai);
1539 return ret;
1540 }
1541
save_serial(const char * serialfile,const char * suffix,const BIGNUM * serial,ASN1_INTEGER ** retai)1542 int save_serial(const char *serialfile, const char *suffix,
1543 const BIGNUM *serial, ASN1_INTEGER **retai)
1544 {
1545 char buf[1][BSIZE];
1546 BIO *out = NULL;
1547 int ret = 0;
1548 ASN1_INTEGER *ai = NULL;
1549 int j;
1550
1551 if (suffix == NULL)
1552 j = strlen(serialfile);
1553 else
1554 j = strlen(serialfile) + strlen(suffix) + 1;
1555 if (j >= BSIZE) {
1556 BIO_printf(bio_err, "File name too long\n");
1557 goto err;
1558 }
1559
1560 if (suffix == NULL) {
1561 OPENSSL_strlcpy(buf[0], serialfile, BSIZE);
1562 } else {
1563 #ifndef OPENSSL_SYS_VMS
1564 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, suffix);
1565 #else
1566 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, suffix);
1567 #endif
1568 }
1569 out = BIO_new_file(buf[0], "w");
1570 if (out == NULL) {
1571 goto err;
1572 }
1573
1574 if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1575 BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1576 goto err;
1577 }
1578 i2a_ASN1_INTEGER(out, ai);
1579 BIO_puts(out, "\n");
1580 ret = 1;
1581 if (retai) {
1582 *retai = ai;
1583 ai = NULL;
1584 }
1585 err:
1586 if (!ret)
1587 ERR_print_errors(bio_err);
1588 BIO_free_all(out);
1589 ASN1_INTEGER_free(ai);
1590 return ret;
1591 }
1592
rotate_serial(const char * serialfile,const char * new_suffix,const char * old_suffix)1593 int rotate_serial(const char *serialfile, const char *new_suffix,
1594 const char *old_suffix)
1595 {
1596 char buf[2][BSIZE];
1597 int i, j;
1598
1599 i = strlen(serialfile) + strlen(old_suffix);
1600 j = strlen(serialfile) + strlen(new_suffix);
1601 if (i > j)
1602 j = i;
1603 if (j + 1 >= BSIZE) {
1604 BIO_printf(bio_err, "File name too long\n");
1605 goto err;
1606 }
1607 #ifndef OPENSSL_SYS_VMS
1608 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, new_suffix);
1609 BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", serialfile, old_suffix);
1610 #else
1611 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, new_suffix);
1612 BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", serialfile, old_suffix);
1613 #endif
1614 if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
1615 #ifdef ENOTDIR
1616 && errno != ENOTDIR
1617 #endif
1618 ) {
1619 BIO_printf(bio_err,
1620 "Unable to rename %s to %s\n", serialfile, buf[1]);
1621 perror("reason");
1622 goto err;
1623 }
1624 if (rename(buf[0], serialfile) < 0) {
1625 BIO_printf(bio_err,
1626 "Unable to rename %s to %s\n", buf[0], serialfile);
1627 perror("reason");
1628 rename(buf[1], serialfile);
1629 goto err;
1630 }
1631 return 1;
1632 err:
1633 ERR_print_errors(bio_err);
1634 return 0;
1635 }
1636
rand_serial(BIGNUM * b,ASN1_INTEGER * ai)1637 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1638 {
1639 BIGNUM *btmp;
1640 int ret = 0;
1641
1642 btmp = b == NULL ? BN_new() : b;
1643 if (btmp == NULL)
1644 return 0;
1645
1646 if (!BN_rand(btmp, SERIAL_RAND_BITS, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))
1647 goto error;
1648 if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1649 goto error;
1650
1651 ret = 1;
1652
1653 error:
1654
1655 if (btmp != b)
1656 BN_free(btmp);
1657
1658 return ret;
1659 }
1660
load_index(const char * dbfile,DB_ATTR * db_attr)1661 CA_DB *load_index(const char *dbfile, DB_ATTR *db_attr)
1662 {
1663 CA_DB *retdb = NULL;
1664 TXT_DB *tmpdb = NULL;
1665 BIO *in;
1666 CONF *dbattr_conf = NULL;
1667 char buf[BSIZE];
1668 #ifndef OPENSSL_NO_POSIX_IO
1669 FILE *dbfp;
1670 struct stat dbst;
1671 #endif
1672
1673 in = BIO_new_file(dbfile, "r");
1674 if (in == NULL)
1675 goto err;
1676
1677 #ifndef OPENSSL_NO_POSIX_IO
1678 BIO_get_fp(in, &dbfp);
1679 if (fstat(fileno(dbfp), &dbst) == -1) {
1680 ERR_raise_data(ERR_LIB_SYS, errno,
1681 "calling fstat(%s)", dbfile);
1682 goto err;
1683 }
1684 #endif
1685
1686 if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
1687 goto err;
1688
1689 #ifndef OPENSSL_SYS_VMS
1690 BIO_snprintf(buf, sizeof(buf), "%s.attr", dbfile);
1691 #else
1692 BIO_snprintf(buf, sizeof(buf), "%s-attr", dbfile);
1693 #endif
1694 dbattr_conf = app_load_config_quiet(buf);
1695
1696 retdb = app_malloc(sizeof(*retdb), "new DB");
1697 retdb->db = tmpdb;
1698 tmpdb = NULL;
1699 if (db_attr)
1700 retdb->attributes = *db_attr;
1701 else
1702 retdb->attributes.unique_subject = 1;
1703
1704 if (dbattr_conf != NULL) {
1705 char *p = app_conf_try_string(dbattr_conf, NULL, "unique_subject");
1706
1707 if (p != NULL)
1708 retdb->attributes.unique_subject = parse_yesno(p, 1);
1709 }
1710
1711 retdb->dbfname = OPENSSL_strdup(dbfile);
1712 if (retdb->dbfname == NULL)
1713 goto err;
1714
1715 #ifndef OPENSSL_NO_POSIX_IO
1716 retdb->dbst = dbst;
1717 #endif
1718
1719 err:
1720 ERR_print_errors(bio_err);
1721 NCONF_free(dbattr_conf);
1722 TXT_DB_free(tmpdb);
1723 BIO_free_all(in);
1724 return retdb;
1725 }
1726
1727 /*
1728 * Returns > 0 on success, <= 0 on error
1729 */
index_index(CA_DB * db)1730 int index_index(CA_DB *db)
1731 {
1732 if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1733 LHASH_HASH_FN(index_serial),
1734 LHASH_COMP_FN(index_serial))) {
1735 BIO_printf(bio_err,
1736 "Error creating serial number index:(%ld,%ld,%ld)\n",
1737 db->db->error, db->db->arg1, db->db->arg2);
1738 goto err;
1739 }
1740
1741 if (db->attributes.unique_subject
1742 && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1743 LHASH_HASH_FN(index_name),
1744 LHASH_COMP_FN(index_name))) {
1745 BIO_printf(bio_err, "Error creating name index:(%ld,%ld,%ld)\n",
1746 db->db->error, db->db->arg1, db->db->arg2);
1747 goto err;
1748 }
1749 return 1;
1750 err:
1751 ERR_print_errors(bio_err);
1752 return 0;
1753 }
1754
save_index(const char * dbfile,const char * suffix,CA_DB * db)1755 int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1756 {
1757 char buf[3][BSIZE];
1758 BIO *out;
1759 int j;
1760
1761 j = strlen(dbfile) + strlen(suffix);
1762 if (j + 6 >= BSIZE) {
1763 BIO_printf(bio_err, "File name too long\n");
1764 goto err;
1765 }
1766 #ifndef OPENSSL_SYS_VMS
1767 BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr", dbfile);
1768 BIO_snprintf(buf[1], sizeof(buf[1]), "%s.attr.%s", dbfile, suffix);
1769 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, suffix);
1770 #else
1771 BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr", dbfile);
1772 BIO_snprintf(buf[1], sizeof(buf[1]), "%s-attr-%s", dbfile, suffix);
1773 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, suffix);
1774 #endif
1775 out = BIO_new_file(buf[0], "w");
1776 if (out == NULL) {
1777 perror(dbfile);
1778 BIO_printf(bio_err, "Unable to open '%s'\n", dbfile);
1779 goto err;
1780 }
1781 j = TXT_DB_write(out, db->db);
1782 BIO_free(out);
1783 if (j <= 0)
1784 goto err;
1785
1786 out = BIO_new_file(buf[1], "w");
1787 if (out == NULL) {
1788 perror(buf[2]);
1789 BIO_printf(bio_err, "Unable to open '%s'\n", buf[2]);
1790 goto err;
1791 }
1792 BIO_printf(out, "unique_subject = %s\n",
1793 db->attributes.unique_subject ? "yes" : "no");
1794 BIO_free(out);
1795
1796 return 1;
1797 err:
1798 ERR_print_errors(bio_err);
1799 return 0;
1800 }
1801
rotate_index(const char * dbfile,const char * new_suffix,const char * old_suffix)1802 int rotate_index(const char *dbfile, const char *new_suffix,
1803 const char *old_suffix)
1804 {
1805 char buf[5][BSIZE];
1806 int i, j;
1807
1808 i = strlen(dbfile) + strlen(old_suffix);
1809 j = strlen(dbfile) + strlen(new_suffix);
1810 if (i > j)
1811 j = i;
1812 if (j + 6 >= BSIZE) {
1813 BIO_printf(bio_err, "File name too long\n");
1814 goto err;
1815 }
1816 #ifndef OPENSSL_SYS_VMS
1817 BIO_snprintf(buf[4], sizeof(buf[4]), "%s.attr", dbfile);
1818 BIO_snprintf(buf[3], sizeof(buf[3]), "%s.attr.%s", dbfile, old_suffix);
1819 BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr.%s", dbfile, new_suffix);
1820 BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", dbfile, old_suffix);
1821 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, new_suffix);
1822 #else
1823 BIO_snprintf(buf[4], sizeof(buf[4]), "%s-attr", dbfile);
1824 BIO_snprintf(buf[3], sizeof(buf[3]), "%s-attr-%s", dbfile, old_suffix);
1825 BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr-%s", dbfile, new_suffix);
1826 BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", dbfile, old_suffix);
1827 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, new_suffix);
1828 #endif
1829 if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
1830 #ifdef ENOTDIR
1831 && errno != ENOTDIR
1832 #endif
1833 ) {
1834 BIO_printf(bio_err, "Unable to rename %s to %s\n", dbfile, buf[1]);
1835 perror("reason");
1836 goto err;
1837 }
1838 if (rename(buf[0], dbfile) < 0) {
1839 BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[0], dbfile);
1840 perror("reason");
1841 rename(buf[1], dbfile);
1842 goto err;
1843 }
1844 if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
1845 #ifdef ENOTDIR
1846 && errno != ENOTDIR
1847 #endif
1848 ) {
1849 BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[4], buf[3]);
1850 perror("reason");
1851 rename(dbfile, buf[0]);
1852 rename(buf[1], dbfile);
1853 goto err;
1854 }
1855 if (rename(buf[2], buf[4]) < 0) {
1856 BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[2], buf[4]);
1857 perror("reason");
1858 rename(buf[3], buf[4]);
1859 rename(dbfile, buf[0]);
1860 rename(buf[1], dbfile);
1861 goto err;
1862 }
1863 return 1;
1864 err:
1865 ERR_print_errors(bio_err);
1866 return 0;
1867 }
1868
free_index(CA_DB * db)1869 void free_index(CA_DB *db)
1870 {
1871 if (db) {
1872 TXT_DB_free(db->db);
1873 OPENSSL_free(db->dbfname);
1874 OPENSSL_free(db);
1875 }
1876 }
1877
parse_yesno(const char * str,int def)1878 int parse_yesno(const char *str, int def)
1879 {
1880 if (str) {
1881 switch (*str) {
1882 case 'f': /* false */
1883 case 'F': /* FALSE */
1884 case 'n': /* no */
1885 case 'N': /* NO */
1886 case '0': /* 0 */
1887 return 0;
1888 case 't': /* true */
1889 case 'T': /* TRUE */
1890 case 'y': /* yes */
1891 case 'Y': /* YES */
1892 case '1': /* 1 */
1893 return 1;
1894 }
1895 }
1896 return def;
1897 }
1898
1899 /*
1900 * name is expected to be in the format /type0=value0/type1=value1/type2=...
1901 * where + can be used instead of / to form multi-valued RDNs if canmulti
1902 * and characters may be escaped by \
1903 */
parse_name(const char * cp,int chtype,int canmulti,const char * desc)1904 X509_NAME *parse_name(const char *cp, int chtype, int canmulti,
1905 const char *desc)
1906 {
1907 int nextismulti = 0;
1908 char *work;
1909 X509_NAME *n;
1910
1911 if (*cp++ != '/') {
1912 BIO_printf(bio_err,
1913 "%s: %s name is expected to be in the format "
1914 "/type0=value0/type1=value1/type2=... where characters may "
1915 "be escaped by \\. This name is not in that format: '%s'\n",
1916 opt_getprog(), desc, --cp);
1917 return NULL;
1918 }
1919
1920 n = X509_NAME_new();
1921 if (n == NULL) {
1922 BIO_printf(bio_err, "%s: Out of memory\n", opt_getprog());
1923 return NULL;
1924 }
1925 work = OPENSSL_strdup(cp);
1926 if (work == NULL) {
1927 BIO_printf(bio_err, "%s: Error copying %s name input\n",
1928 opt_getprog(), desc);
1929 goto err;
1930 }
1931
1932 while (*cp != '\0') {
1933 char *bp = work;
1934 char *typestr = bp;
1935 unsigned char *valstr;
1936 int nid;
1937 int ismulti = nextismulti;
1938
1939 nextismulti = 0;
1940
1941 /* Collect the type */
1942 while (*cp != '\0' && *cp != '=')
1943 *bp++ = *cp++;
1944 *bp++ = '\0';
1945 if (*cp == '\0') {
1946 BIO_printf(bio_err,
1947 "%s: Missing '=' after RDN type string '%s' in %s name string\n",
1948 opt_getprog(), typestr, desc);
1949 goto err;
1950 }
1951 ++cp;
1952
1953 /* Collect the value. */
1954 valstr = (unsigned char *)bp;
1955 for (; *cp != '\0' && *cp != '/'; *bp++ = *cp++) {
1956 /* unescaped '+' symbol string signals further member of multiRDN */
1957 if (canmulti && *cp == '+') {
1958 nextismulti = 1;
1959 break;
1960 }
1961 if (*cp == '\\' && *++cp == '\0') {
1962 BIO_printf(bio_err,
1963 "%s: Escape character at end of %s name string\n",
1964 opt_getprog(), desc);
1965 goto err;
1966 }
1967 }
1968 *bp++ = '\0';
1969
1970 /* If not at EOS (must be + or /), move forward. */
1971 if (*cp != '\0')
1972 ++cp;
1973
1974 /* Parse */
1975 nid = OBJ_txt2nid(typestr);
1976 if (nid == NID_undef) {
1977 BIO_printf(bio_err,
1978 "%s warning: Skipping unknown %s name attribute \"%s\"\n",
1979 opt_getprog(), desc, typestr);
1980 if (ismulti)
1981 BIO_printf(bio_err,
1982 "%s hint: a '+' in a value string needs be escaped using '\\' else a new member of a multi-valued RDN is expected\n",
1983 opt_getprog());
1984 continue;
1985 }
1986 if (*valstr == '\0') {
1987 BIO_printf(bio_err,
1988 "%s warning: No value provided for %s name attribute \"%s\", skipped\n",
1989 opt_getprog(), desc, typestr);
1990 continue;
1991 }
1992 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1993 valstr, strlen((char *)valstr),
1994 -1, ismulti ? -1 : 0)) {
1995 ERR_print_errors(bio_err);
1996 BIO_printf(bio_err,
1997 "%s: Error adding %s name attribute \"/%s=%s\"\n",
1998 opt_getprog(), desc, typestr, valstr);
1999 goto err;
2000 }
2001 }
2002
2003 OPENSSL_free(work);
2004 return n;
2005
2006 err:
2007 X509_NAME_free(n);
2008 OPENSSL_free(work);
2009 return NULL;
2010 }
2011
2012 /*
2013 * Read whole contents of a BIO into an allocated memory buffer and return
2014 * it.
2015 */
2016
bio_to_mem(unsigned char ** out,int maxlen,BIO * in)2017 int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
2018 {
2019 BIO *mem;
2020 int len, ret;
2021 unsigned char tbuf[1024];
2022
2023 mem = BIO_new(BIO_s_mem());
2024 if (mem == NULL)
2025 return -1;
2026 for (;;) {
2027 if ((maxlen != -1) && maxlen < 1024)
2028 len = maxlen;
2029 else
2030 len = 1024;
2031 len = BIO_read(in, tbuf, len);
2032 if (len < 0) {
2033 BIO_free(mem);
2034 return -1;
2035 }
2036 if (len == 0)
2037 break;
2038 if (BIO_write(mem, tbuf, len) != len) {
2039 BIO_free(mem);
2040 return -1;
2041 }
2042 if (maxlen != -1)
2043 maxlen -= len;
2044
2045 if (maxlen == 0)
2046 break;
2047 }
2048 ret = BIO_get_mem_data(mem, (char **)out);
2049 BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
2050 BIO_free(mem);
2051 return ret;
2052 }
2053
pkey_ctrl_string(EVP_PKEY_CTX * ctx,const char * value)2054 int pkey_ctrl_string(EVP_PKEY_CTX *ctx, const char *value)
2055 {
2056 int rv = 0;
2057 char *stmp, *vtmp = NULL;
2058
2059 stmp = OPENSSL_strdup(value);
2060 if (stmp == NULL)
2061 return -1;
2062 vtmp = strchr(stmp, ':');
2063 if (vtmp == NULL)
2064 goto err;
2065
2066 *vtmp = 0;
2067 vtmp++;
2068 rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
2069
2070 err:
2071 OPENSSL_free(stmp);
2072 return rv;
2073 }
2074
nodes_print(const char * name,STACK_OF (X509_POLICY_NODE)* nodes)2075 static void nodes_print(const char *name, STACK_OF(X509_POLICY_NODE) *nodes)
2076 {
2077 X509_POLICY_NODE *node;
2078 int i;
2079
2080 BIO_printf(bio_err, "%s Policies:", name);
2081 if (nodes) {
2082 BIO_puts(bio_err, "\n");
2083 for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2084 node = sk_X509_POLICY_NODE_value(nodes, i);
2085 X509_POLICY_NODE_print(bio_err, node, 2);
2086 }
2087 } else {
2088 BIO_puts(bio_err, " <empty>\n");
2089 }
2090 }
2091
policies_print(X509_STORE_CTX * ctx)2092 void policies_print(X509_STORE_CTX *ctx)
2093 {
2094 X509_POLICY_TREE *tree;
2095 int explicit_policy;
2096
2097 tree = X509_STORE_CTX_get0_policy_tree(ctx);
2098 explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2099
2100 BIO_printf(bio_err, "Require explicit Policy: %s\n",
2101 explicit_policy ? "True" : "False");
2102
2103 nodes_print("Authority", X509_policy_tree_get0_policies(tree));
2104 nodes_print("User", X509_policy_tree_get0_user_policies(tree));
2105 }
2106
2107 /*-
2108 * next_protos_parse parses a comma separated list of strings into a string
2109 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
2110 * outlen: (output) set to the length of the resulting buffer on success.
2111 * err: (maybe NULL) on failure, an error message line is written to this BIO.
2112 * in: a NUL terminated string like "abc,def,ghi"
2113 *
2114 * returns: a malloc'd buffer or NULL on failure.
2115 */
next_protos_parse(size_t * outlen,const char * in)2116 unsigned char *next_protos_parse(size_t *outlen, const char *in)
2117 {
2118 size_t len;
2119 unsigned char *out;
2120 size_t i, start = 0;
2121 size_t skipped = 0;
2122
2123 len = strlen(in);
2124 if (len == 0 || len >= 65535)
2125 return NULL;
2126
2127 out = app_malloc(len + 1, "NPN buffer");
2128 for (i = 0; i <= len; ++i) {
2129 if (i == len || in[i] == ',') {
2130 /*
2131 * Zero-length ALPN elements are invalid on the wire, we could be
2132 * strict and reject the entire string, but just ignoring extra
2133 * commas seems harmless and more friendly.
2134 *
2135 * Every comma we skip in this way puts the input buffer another
2136 * byte ahead of the output buffer, so all stores into the output
2137 * buffer need to be decremented by the number commas skipped.
2138 */
2139 if (i == start) {
2140 ++start;
2141 ++skipped;
2142 continue;
2143 }
2144 if (i - start > 255) {
2145 OPENSSL_free(out);
2146 return NULL;
2147 }
2148 out[start - skipped] = (unsigned char)(i - start);
2149 start = i + 1;
2150 } else {
2151 out[i + 1 - skipped] = in[i];
2152 }
2153 }
2154
2155 if (len <= skipped) {
2156 OPENSSL_free(out);
2157 return NULL;
2158 }
2159
2160 *outlen = len + 1 - skipped;
2161 return out;
2162 }
2163
check_cert_attributes(BIO * bio,X509 * x,const char * checkhost,const char * checkemail,const char * checkip,int print)2164 int check_cert_attributes(BIO *bio, X509 *x, const char *checkhost,
2165 const char *checkemail, const char *checkip,
2166 int print)
2167 {
2168 int valid_host = 0;
2169 int valid_mail = 0;
2170 int valid_ip = 0;
2171 int ret = 1;
2172
2173 if (x == NULL)
2174 return 0;
2175
2176 if (checkhost != NULL) {
2177 valid_host = X509_check_host(x, checkhost, 0, 0, NULL);
2178 if (print)
2179 BIO_printf(bio, "Hostname %s does%s match certificate\n",
2180 checkhost, valid_host == 1 ? "" : " NOT");
2181 ret = ret && valid_host > 0;
2182 }
2183
2184 if (checkemail != NULL) {
2185 valid_mail = X509_check_email(x, checkemail, 0, 0);
2186 if (print)
2187 BIO_printf(bio, "Email %s does%s match certificate\n",
2188 checkemail, valid_mail ? "" : " NOT");
2189 ret = ret && valid_mail > 0;
2190 }
2191
2192 if (checkip != NULL) {
2193 valid_ip = X509_check_ip_asc(x, checkip, 0);
2194 if (print)
2195 BIO_printf(bio, "IP %s does%s match certificate\n",
2196 checkip, valid_ip ? "" : " NOT");
2197 ret = ret && valid_ip > 0;
2198 }
2199
2200 return ret;
2201 }
2202
do_pkey_ctx_init(EVP_PKEY_CTX * pkctx,STACK_OF (OPENSSL_STRING)* opts)2203 static int do_pkey_ctx_init(EVP_PKEY_CTX *pkctx, STACK_OF(OPENSSL_STRING) *opts)
2204 {
2205 int i;
2206
2207 if (opts == NULL)
2208 return 1;
2209
2210 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
2211 char *opt = sk_OPENSSL_STRING_value(opts, i);
2212
2213 if (pkey_ctrl_string(pkctx, opt) <= 0) {
2214 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
2215 ERR_print_errors(bio_err);
2216 return 0;
2217 }
2218 }
2219
2220 return 1;
2221 }
2222
do_x509_init(X509 * x,STACK_OF (OPENSSL_STRING)* opts)2223 static int do_x509_init(X509 *x, STACK_OF(OPENSSL_STRING) *opts)
2224 {
2225 int i;
2226
2227 if (opts == NULL)
2228 return 1;
2229
2230 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
2231 char *opt = sk_OPENSSL_STRING_value(opts, i);
2232
2233 if (x509_ctrl_string(x, opt) <= 0) {
2234 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
2235 ERR_print_errors(bio_err);
2236 return 0;
2237 }
2238 }
2239
2240 return 1;
2241 }
2242
do_x509_req_init(X509_REQ * x,STACK_OF (OPENSSL_STRING)* opts)2243 static int do_x509_req_init(X509_REQ *x, STACK_OF(OPENSSL_STRING) *opts)
2244 {
2245 int i;
2246
2247 if (opts == NULL)
2248 return 1;
2249
2250 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
2251 char *opt = sk_OPENSSL_STRING_value(opts, i);
2252
2253 if (x509_req_ctrl_string(x, opt) <= 0) {
2254 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
2255 ERR_print_errors(bio_err);
2256 return 0;
2257 }
2258 }
2259
2260 return 1;
2261 }
2262
do_sign_init(EVP_MD_CTX * ctx,EVP_PKEY * pkey,const char * md,STACK_OF (OPENSSL_STRING)* sigopts)2263 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
2264 const char *md, STACK_OF(OPENSSL_STRING) *sigopts)
2265 {
2266 EVP_PKEY_CTX *pkctx = NULL;
2267 char def_md[80];
2268
2269 if (ctx == NULL)
2270 return 0;
2271 /*
2272 * EVP_PKEY_get_default_digest_name() returns 2 if the digest is mandatory
2273 * for this algorithm.
2274 */
2275 if (EVP_PKEY_get_default_digest_name(pkey, def_md, sizeof(def_md)) == 2
2276 && strcmp(def_md, "UNDEF") == 0) {
2277 /* The signing algorithm requires there to be no digest */
2278 md = NULL;
2279 }
2280
2281 return EVP_DigestSignInit_ex(ctx, &pkctx, md, app_get0_libctx(),
2282 app_get0_propq(), pkey, NULL)
2283 && do_pkey_ctx_init(pkctx, sigopts);
2284 }
2285
adapt_keyid_ext(X509 * cert,X509V3_CTX * ext_ctx,const char * name,const char * value,int add_default)2286 static int adapt_keyid_ext(X509 *cert, X509V3_CTX *ext_ctx,
2287 const char *name, const char *value, int add_default)
2288 {
2289 const STACK_OF(X509_EXTENSION) *exts = X509_get0_extensions(cert);
2290 X509_EXTENSION *new_ext = X509V3_EXT_nconf(NULL, ext_ctx, name, value);
2291 int idx, rv = 0;
2292
2293 if (new_ext == NULL)
2294 return rv;
2295
2296 idx = X509v3_get_ext_by_OBJ(exts, X509_EXTENSION_get_object(new_ext), -1);
2297 if (idx >= 0) {
2298 X509_EXTENSION *found_ext = X509v3_get_ext(exts, idx);
2299 ASN1_OCTET_STRING *encoded = X509_EXTENSION_get_data(found_ext);
2300 int disabled = ASN1_STRING_length(encoded) <= 2; /* indicating "none" */
2301
2302 if (disabled) {
2303 X509_delete_ext(cert, idx);
2304 X509_EXTENSION_free(found_ext);
2305 } /* else keep existing key identifier, which might be outdated */
2306 rv = 1;
2307 } else {
2308 rv = !add_default || X509_add_ext(cert, new_ext, -1);
2309 }
2310 X509_EXTENSION_free(new_ext);
2311 return rv;
2312 }
2313
cert_matches_key(const X509 * cert,const EVP_PKEY * pkey)2314 int cert_matches_key(const X509 *cert, const EVP_PKEY *pkey)
2315 {
2316 int match;
2317
2318 ERR_set_mark();
2319 match = X509_check_private_key(cert, pkey);
2320 ERR_pop_to_mark();
2321 return match;
2322 }
2323
2324 /* Ensure RFC 5280 compliance, adapt keyIDs as needed, and sign the cert info */
do_X509_sign(X509 * cert,int force_v1,EVP_PKEY * pkey,const char * md,STACK_OF (OPENSSL_STRING)* sigopts,X509V3_CTX * ext_ctx)2325 int do_X509_sign(X509 *cert, int force_v1, EVP_PKEY *pkey, const char *md,
2326 STACK_OF(OPENSSL_STRING) *sigopts, X509V3_CTX *ext_ctx)
2327 {
2328 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
2329 int self_sign;
2330 int rv = 0;
2331
2332 if (!force_v1) {
2333 if (!X509_set_version(cert, X509_VERSION_3))
2334 goto end;
2335
2336 /*
2337 * Add default SKID before AKID such that AKID can make use of it
2338 * in case the certificate is self-signed
2339 */
2340 /* Prevent X509_V_ERR_MISSING_SUBJECT_KEY_IDENTIFIER */
2341 if (!adapt_keyid_ext(cert, ext_ctx, "subjectKeyIdentifier", "hash", 1))
2342 goto end;
2343 /* Prevent X509_V_ERR_MISSING_AUTHORITY_KEY_IDENTIFIER */
2344 self_sign = cert_matches_key(cert, pkey);
2345 if (!adapt_keyid_ext(cert, ext_ctx, "authorityKeyIdentifier",
2346 "keyid, issuer", !self_sign))
2347 goto end;
2348 }
2349 /* May add further measures for ensuring RFC 5280 compliance, see #19805 */
2350
2351 if (mctx != NULL && do_sign_init(mctx, pkey, md, sigopts) > 0)
2352 rv = (X509_sign_ctx(cert, mctx) > 0);
2353 end:
2354 EVP_MD_CTX_free(mctx);
2355 return rv;
2356 }
2357
2358 /* Sign the certificate request info */
do_X509_REQ_sign(X509_REQ * x,EVP_PKEY * pkey,const char * md,STACK_OF (OPENSSL_STRING)* sigopts)2359 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const char *md,
2360 STACK_OF(OPENSSL_STRING) *sigopts)
2361 {
2362 int rv = 0;
2363 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
2364
2365 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
2366 rv = (X509_REQ_sign_ctx(x, mctx) > 0);
2367 EVP_MD_CTX_free(mctx);
2368 return rv;
2369 }
2370
2371 /* Sign the CRL info */
do_X509_CRL_sign(X509_CRL * x,EVP_PKEY * pkey,const char * md,STACK_OF (OPENSSL_STRING)* sigopts)2372 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const char *md,
2373 STACK_OF(OPENSSL_STRING) *sigopts)
2374 {
2375 int rv = 0;
2376 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
2377
2378 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
2379 rv = (X509_CRL_sign_ctx(x, mctx) > 0);
2380 EVP_MD_CTX_free(mctx);
2381 return rv;
2382 }
2383
2384 /*
2385 * do_X509_verify returns 1 if the signature is valid,
2386 * 0 if the signature check fails, or -1 if error occurs.
2387 */
do_X509_verify(X509 * x,EVP_PKEY * pkey,STACK_OF (OPENSSL_STRING)* vfyopts)2388 int do_X509_verify(X509 *x, EVP_PKEY *pkey, STACK_OF(OPENSSL_STRING) *vfyopts)
2389 {
2390 int rv = 0;
2391
2392 if (do_x509_init(x, vfyopts) > 0)
2393 rv = X509_verify(x, pkey);
2394 else
2395 rv = -1;
2396 return rv;
2397 }
2398
2399 /*
2400 * do_X509_REQ_verify returns 1 if the signature is valid,
2401 * 0 if the signature check fails, or -1 if error occurs.
2402 */
do_X509_REQ_verify(X509_REQ * x,EVP_PKEY * pkey,STACK_OF (OPENSSL_STRING)* vfyopts)2403 int do_X509_REQ_verify(X509_REQ *x, EVP_PKEY *pkey,
2404 STACK_OF(OPENSSL_STRING) *vfyopts)
2405 {
2406 int rv = 0;
2407
2408 if (do_x509_req_init(x, vfyopts) > 0)
2409 rv = X509_REQ_verify_ex(x, pkey, app_get0_libctx(), app_get0_propq());
2410 else
2411 rv = -1;
2412 return rv;
2413 }
2414
2415 /* Get first http URL from a DIST_POINT structure */
2416
get_dp_url(DIST_POINT * dp)2417 static const char *get_dp_url(DIST_POINT *dp)
2418 {
2419 GENERAL_NAMES *gens;
2420 GENERAL_NAME *gen;
2421 int i, gtype;
2422 ASN1_STRING *uri;
2423
2424 if (!dp->distpoint || dp->distpoint->type != 0)
2425 return NULL;
2426 gens = dp->distpoint->name.fullname;
2427 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
2428 gen = sk_GENERAL_NAME_value(gens, i);
2429 uri = GENERAL_NAME_get0_value(gen, >ype);
2430 if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
2431 const char *uptr = (const char *)ASN1_STRING_get0_data(uri);
2432
2433 if (IS_HTTP(uptr)) /* can/should not use HTTPS here */
2434 return uptr;
2435 }
2436 }
2437 return NULL;
2438 }
2439
2440 /*
2441 * Look through a CRLDP structure and attempt to find an http URL to
2442 * downloads a CRL from.
2443 */
2444
load_crl_crldp(STACK_OF (DIST_POINT)* crldp)2445 static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
2446 {
2447 int i;
2448 const char *urlptr = NULL;
2449
2450 for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
2451 DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
2452
2453 urlptr = get_dp_url(dp);
2454 if (urlptr != NULL)
2455 return load_crl(urlptr, FORMAT_UNDEF, 0, "CRL via CDP");
2456 }
2457 return NULL;
2458 }
2459
2460 /*
2461 * Example of downloading CRLs from CRLDP:
2462 * not usable for real world as it always downloads and doesn't cache anything.
2463 */
2464
STACK_OF(X509_CRL)2465 static STACK_OF(X509_CRL) *crls_http_cb(const X509_STORE_CTX *ctx,
2466 const X509_NAME *nm)
2467 {
2468 X509 *x;
2469 STACK_OF(X509_CRL) *crls = NULL;
2470 X509_CRL *crl;
2471 STACK_OF(DIST_POINT) *crldp;
2472
2473 crls = sk_X509_CRL_new_null();
2474 if (!crls)
2475 return NULL;
2476 x = X509_STORE_CTX_get_current_cert(ctx);
2477 crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
2478 crl = load_crl_crldp(crldp);
2479 sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2480
2481 if (crl == NULL || !sk_X509_CRL_push(crls, crl))
2482 goto error;
2483
2484 /* Try to download delta CRL */
2485 crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
2486 crl = load_crl_crldp(crldp);
2487 sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2488
2489 if (crl != NULL && !sk_X509_CRL_push(crls, crl))
2490 goto error;
2491
2492 return crls;
2493
2494 error:
2495 X509_CRL_free(crl);
2496 sk_X509_CRL_free(crls);
2497 return NULL;
2498 }
2499
store_setup_crl_download(X509_STORE * st)2500 void store_setup_crl_download(X509_STORE *st)
2501 {
2502 X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
2503 }
2504
2505 #if !defined(OPENSSL_NO_SOCK) && !defined(OPENSSL_NO_HTTP)
tls_error_hint(void)2506 static const char *tls_error_hint(void)
2507 {
2508 unsigned long err = ERR_peek_error();
2509
2510 if (ERR_GET_LIB(err) != ERR_LIB_SSL)
2511 err = ERR_peek_last_error();
2512 if (ERR_GET_LIB(err) != ERR_LIB_SSL)
2513 return NULL; /* likely no TLS error */
2514
2515 switch (ERR_GET_REASON(err)) {
2516 case SSL_R_WRONG_VERSION_NUMBER:
2517 return "The server does not support (a suitable version of) TLS";
2518 case SSL_R_UNKNOWN_PROTOCOL:
2519 return "The server does not support HTTPS";
2520 case SSL_R_CERTIFICATE_VERIFY_FAILED:
2521 return "Cannot authenticate server via its TLS certificate, likely due to mismatch with our trusted TLS certs or missing revocation status";
2522 case SSL_AD_REASON_OFFSET + TLS1_AD_UNKNOWN_CA:
2523 return "Server did not accept our TLS certificate, likely due to mismatch with server's trust anchor or missing revocation status";
2524 case SSL_AD_REASON_OFFSET + SSL3_AD_HANDSHAKE_FAILURE:
2525 return "TLS handshake failure. Possibly the server requires our TLS certificate but did not receive it";
2526 default:
2527 return NULL; /* no hint available for TLS error */
2528 }
2529 }
2530
http_tls_shutdown(BIO * bio)2531 static BIO *http_tls_shutdown(BIO *bio)
2532 {
2533 if (bio != NULL) {
2534 BIO *cbio;
2535 const char *hint = tls_error_hint();
2536
2537 if (hint != NULL)
2538 BIO_printf(bio_err, "%s\n", hint);
2539 (void)ERR_set_mark();
2540 BIO_ssl_shutdown(bio);
2541 cbio = BIO_pop(bio); /* connect+HTTP BIO */
2542 BIO_free(bio); /* SSL BIO */
2543 (void)ERR_pop_to_mark(); /* hide SSL_R_READ_BIO_NOT_SET etc. */
2544 bio = cbio;
2545 }
2546 return bio;
2547 }
2548
2549 /* HTTP callback function that supports TLS connection also via HTTPS proxy */
app_http_tls_cb(BIO * bio,void * arg,int connect,int detail)2550 BIO *app_http_tls_cb(BIO *bio, void *arg, int connect, int detail)
2551 {
2552 APP_HTTP_TLS_INFO *info = (APP_HTTP_TLS_INFO *)arg;
2553 SSL_CTX *ssl_ctx = info->ssl_ctx;
2554
2555 if (ssl_ctx == NULL) /* not using TLS */
2556 return bio;
2557 if (connect) {
2558 SSL *ssl;
2559 BIO *sbio = NULL;
2560 X509_STORE *ts = SSL_CTX_get_cert_store(ssl_ctx);
2561 X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
2562 const char *host = vpm == NULL ? NULL :
2563 X509_VERIFY_PARAM_get0_host(vpm, 0 /* first hostname */);
2564
2565 /* adapt after fixing callback design flaw, see #17088 */
2566 if ((info->use_proxy
2567 && !OSSL_HTTP_proxy_connect(bio, info->server, info->port,
2568 NULL, NULL, /* no proxy credentials */
2569 info->timeout, bio_err, opt_getprog()))
2570 || (sbio = BIO_new(BIO_f_ssl())) == NULL) {
2571 return NULL;
2572 }
2573 if ((ssl = SSL_new(ssl_ctx)) == NULL) {
2574 BIO_free(sbio);
2575 return NULL;
2576 }
2577
2578 if (vpm != NULL)
2579 SSL_set_tlsext_host_name(ssl, host /* may be NULL */);
2580
2581 SSL_set_connect_state(ssl);
2582 BIO_set_ssl(sbio, ssl, BIO_CLOSE);
2583
2584 bio = BIO_push(sbio, bio);
2585 } else { /* disconnect from TLS */
2586 bio = http_tls_shutdown(bio);
2587 }
2588 return bio;
2589 }
2590
APP_HTTP_TLS_INFO_free(APP_HTTP_TLS_INFO * info)2591 void APP_HTTP_TLS_INFO_free(APP_HTTP_TLS_INFO *info)
2592 {
2593 if (info != NULL) {
2594 SSL_CTX_free(info->ssl_ctx);
2595 OPENSSL_free(info);
2596 }
2597 }
2598
app_http_get_asn1(const char * url,const char * proxy,const char * no_proxy,SSL_CTX * ssl_ctx,const STACK_OF (CONF_VALUE)* headers,long timeout,const char * expected_content_type,const ASN1_ITEM * it)2599 ASN1_VALUE *app_http_get_asn1(const char *url, const char *proxy,
2600 const char *no_proxy, SSL_CTX *ssl_ctx,
2601 const STACK_OF(CONF_VALUE) *headers,
2602 long timeout, const char *expected_content_type,
2603 const ASN1_ITEM *it)
2604 {
2605 APP_HTTP_TLS_INFO info;
2606 char *server;
2607 char *port;
2608 int use_ssl;
2609 BIO *mem;
2610 ASN1_VALUE *resp = NULL;
2611
2612 if (url == NULL || it == NULL) {
2613 ERR_raise(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER);
2614 return NULL;
2615 }
2616
2617 if (!OSSL_HTTP_parse_url(url, &use_ssl, NULL /* userinfo */, &server, &port,
2618 NULL /* port_num, */, NULL, NULL, NULL))
2619 return NULL;
2620 if (use_ssl && ssl_ctx == NULL) {
2621 ERR_raise_data(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER,
2622 "missing SSL_CTX");
2623 goto end;
2624 }
2625 if (!use_ssl && ssl_ctx != NULL) {
2626 ERR_raise_data(ERR_LIB_HTTP, ERR_R_PASSED_INVALID_ARGUMENT,
2627 "SSL_CTX given but use_ssl == 0");
2628 goto end;
2629 }
2630
2631 info.server = server;
2632 info.port = port;
2633 info.use_proxy = /* workaround for callback design flaw, see #17088 */
2634 OSSL_HTTP_adapt_proxy(proxy, no_proxy, server, use_ssl) != NULL;
2635 info.timeout = timeout;
2636 info.ssl_ctx = ssl_ctx;
2637 mem = OSSL_HTTP_get(url, proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
2638 app_http_tls_cb, &info, 0 /* buf_size */, headers,
2639 expected_content_type, 1 /* expect_asn1 */,
2640 OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout);
2641 resp = ASN1_item_d2i_bio(it, mem, NULL);
2642 BIO_free(mem);
2643
2644 end:
2645 OPENSSL_free(server);
2646 OPENSSL_free(port);
2647 return resp;
2648
2649 }
2650
app_http_post_asn1(const char * host,const char * port,const char * path,const char * proxy,const char * no_proxy,SSL_CTX * ssl_ctx,const STACK_OF (CONF_VALUE)* headers,const char * content_type,ASN1_VALUE * req,const ASN1_ITEM * req_it,const char * expected_content_type,long timeout,const ASN1_ITEM * rsp_it)2651 ASN1_VALUE *app_http_post_asn1(const char *host, const char *port,
2652 const char *path, const char *proxy,
2653 const char *no_proxy, SSL_CTX *ssl_ctx,
2654 const STACK_OF(CONF_VALUE) *headers,
2655 const char *content_type,
2656 ASN1_VALUE *req, const ASN1_ITEM *req_it,
2657 const char *expected_content_type,
2658 long timeout, const ASN1_ITEM *rsp_it)
2659 {
2660 int use_ssl = ssl_ctx != NULL;
2661 APP_HTTP_TLS_INFO info;
2662 BIO *rsp, *req_mem = ASN1_item_i2d_mem_bio(req_it, req);
2663 ASN1_VALUE *res;
2664
2665 if (req_mem == NULL)
2666 return NULL;
2667
2668 info.server = host;
2669 info.port = port;
2670 info.use_proxy = /* workaround for callback design flaw, see #17088 */
2671 OSSL_HTTP_adapt_proxy(proxy, no_proxy, host, use_ssl) != NULL;
2672 info.timeout = timeout;
2673 info.ssl_ctx = ssl_ctx;
2674 rsp = OSSL_HTTP_transfer(NULL, host, port, path, use_ssl,
2675 proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
2676 app_http_tls_cb, &info,
2677 0 /* buf_size */, headers, content_type, req_mem,
2678 expected_content_type, 1 /* expect_asn1 */,
2679 OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout,
2680 0 /* keep_alive */);
2681 BIO_free(req_mem);
2682 res = ASN1_item_d2i_bio(rsp_it, rsp, NULL);
2683 BIO_free(rsp);
2684 return res;
2685 }
2686
2687 #endif
2688
2689 /*
2690 * Platform-specific sections
2691 */
2692 #if defined(_WIN32)
2693 # ifdef fileno
2694 # undef fileno
2695 # define fileno(a) (int)_fileno(a)
2696 # endif
2697
2698 # include <windows.h>
2699 # include <tchar.h>
2700
WIN32_rename(const char * from,const char * to)2701 static int WIN32_rename(const char *from, const char *to)
2702 {
2703 TCHAR *tfrom = NULL, *tto;
2704 DWORD err;
2705 int ret = 0;
2706
2707 if (sizeof(TCHAR) == 1) {
2708 tfrom = (TCHAR *)from;
2709 tto = (TCHAR *)to;
2710 } else { /* UNICODE path */
2711 size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
2712
2713 tfrom = malloc(sizeof(*tfrom) * (flen + tlen));
2714 if (tfrom == NULL)
2715 goto err;
2716 tto = tfrom + flen;
2717 # if !defined(_WIN32_WCE) || _WIN32_WCE >= 101
2718 if (!MultiByteToWideChar(CP_ACP, 0, from, flen, (WCHAR *)tfrom, flen))
2719 # endif
2720 for (i = 0; i < flen; i++)
2721 tfrom[i] = (TCHAR)from[i];
2722 # if !defined(_WIN32_WCE) || _WIN32_WCE >= 101
2723 if (!MultiByteToWideChar(CP_ACP, 0, to, tlen, (WCHAR *)tto, tlen))
2724 # endif
2725 for (i = 0; i < tlen; i++)
2726 tto[i] = (TCHAR)to[i];
2727 }
2728
2729 if (MoveFile(tfrom, tto))
2730 goto ok;
2731 err = GetLastError();
2732 if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
2733 if (DeleteFile(tto) && MoveFile(tfrom, tto))
2734 goto ok;
2735 err = GetLastError();
2736 }
2737 if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
2738 errno = ENOENT;
2739 else if (err == ERROR_ACCESS_DENIED)
2740 errno = EACCES;
2741 else
2742 errno = EINVAL; /* we could map more codes... */
2743 err:
2744 ret = -1;
2745 ok:
2746 if (tfrom != NULL && tfrom != (TCHAR *)from)
2747 free(tfrom);
2748 return ret;
2749 }
2750 #endif
2751
2752 /* app_tminterval section */
2753 #if defined(_WIN32)
app_tminterval(int stop,int usertime)2754 double app_tminterval(int stop, int usertime)
2755 {
2756 FILETIME now;
2757 double ret = 0;
2758 static ULARGE_INTEGER tmstart;
2759 static int warning = 1;
2760 int use_GetSystemTime = 1;
2761 # ifdef _WIN32_WINNT
2762 static HANDLE proc = NULL;
2763
2764 if (proc == NULL) {
2765 if (check_winnt())
2766 proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
2767 GetCurrentProcessId());
2768 if (proc == NULL)
2769 proc = (HANDLE) - 1;
2770 }
2771
2772 if (usertime && proc != (HANDLE) - 1) {
2773 FILETIME junk;
2774
2775 GetProcessTimes(proc, &junk, &junk, &junk, &now);
2776 use_GetSystemTime = 0;
2777 }
2778 # endif
2779 if (use_GetSystemTime) {
2780 SYSTEMTIME systime;
2781
2782 if (usertime && warning) {
2783 BIO_printf(bio_err, "To get meaningful results, run "
2784 "this program on idle system.\n");
2785 warning = 0;
2786 }
2787 GetSystemTime(&systime);
2788 SystemTimeToFileTime(&systime, &now);
2789 }
2790
2791 if (stop == TM_START) {
2792 tmstart.u.LowPart = now.dwLowDateTime;
2793 tmstart.u.HighPart = now.dwHighDateTime;
2794 } else {
2795 ULARGE_INTEGER tmstop;
2796
2797 tmstop.u.LowPart = now.dwLowDateTime;
2798 tmstop.u.HighPart = now.dwHighDateTime;
2799
2800 ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
2801 }
2802
2803 return ret;
2804 }
2805 #elif defined(OPENSSL_SYS_VXWORKS)
2806 # include <time.h>
2807
app_tminterval(int stop,int usertime)2808 double app_tminterval(int stop, int usertime)
2809 {
2810 double ret = 0;
2811 # ifdef CLOCK_REALTIME
2812 static struct timespec tmstart;
2813 struct timespec now;
2814 # else
2815 static unsigned long tmstart;
2816 unsigned long now;
2817 # endif
2818 static int warning = 1;
2819
2820 if (usertime && warning) {
2821 BIO_printf(bio_err, "To get meaningful results, run "
2822 "this program on idle system.\n");
2823 warning = 0;
2824 }
2825 # ifdef CLOCK_REALTIME
2826 clock_gettime(CLOCK_REALTIME, &now);
2827 if (stop == TM_START)
2828 tmstart = now;
2829 else
2830 ret = ((now.tv_sec + now.tv_nsec * 1e-9)
2831 - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
2832 # else
2833 now = tickGet();
2834 if (stop == TM_START)
2835 tmstart = now;
2836 else
2837 ret = (now - tmstart) / (double)sysClkRateGet();
2838 # endif
2839 return ret;
2840 }
2841
2842 #elif defined(_SC_CLK_TCK) /* by means of unistd.h */
2843 # include <sys/times.h>
2844
app_tminterval(int stop,int usertime)2845 double app_tminterval(int stop, int usertime)
2846 {
2847 double ret = 0;
2848 struct tms rus;
2849 clock_t now = times(&rus);
2850 static clock_t tmstart;
2851
2852 if (usertime)
2853 now = rus.tms_utime;
2854
2855 if (stop == TM_START) {
2856 tmstart = now;
2857 } else {
2858 long int tck = sysconf(_SC_CLK_TCK);
2859
2860 ret = (now - tmstart) / (double)tck;
2861 }
2862
2863 return ret;
2864 }
2865
2866 #else
2867 # include <sys/time.h>
2868 # include <sys/resource.h>
2869
app_tminterval(int stop,int usertime)2870 double app_tminterval(int stop, int usertime)
2871 {
2872 double ret = 0;
2873 struct rusage rus;
2874 struct timeval now;
2875 static struct timeval tmstart;
2876
2877 if (usertime)
2878 getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
2879 else
2880 gettimeofday(&now, NULL);
2881
2882 if (stop == TM_START)
2883 tmstart = now;
2884 else
2885 ret = ((now.tv_sec + now.tv_usec * 1e-6)
2886 - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
2887
2888 return ret;
2889 }
2890 #endif
2891
app_access(const char * name,int flag)2892 int app_access(const char *name, int flag)
2893 {
2894 #ifdef _WIN32
2895 return _access(name, flag);
2896 #else
2897 return access(name, flag);
2898 #endif
2899 }
2900
app_isdir(const char * name)2901 int app_isdir(const char *name)
2902 {
2903 return opt_isdir(name);
2904 }
2905
2906 /* raw_read|write section */
2907 #if defined(__VMS)
2908 # include "vms_term_sock.h"
2909 static int stdin_sock = -1;
2910
close_stdin_sock(void)2911 static void close_stdin_sock(void)
2912 {
2913 TerminalSocket(TERM_SOCK_DELETE, &stdin_sock);
2914 }
2915
fileno_stdin(void)2916 int fileno_stdin(void)
2917 {
2918 if (stdin_sock == -1) {
2919 TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
2920 atexit(close_stdin_sock);
2921 }
2922
2923 return stdin_sock;
2924 }
2925 #else
fileno_stdin(void)2926 int fileno_stdin(void)
2927 {
2928 return fileno(stdin);
2929 }
2930 #endif
2931
fileno_stdout(void)2932 int fileno_stdout(void)
2933 {
2934 return fileno(stdout);
2935 }
2936
2937 #if defined(_WIN32) && defined(STD_INPUT_HANDLE)
raw_read_stdin(void * buf,int siz)2938 int raw_read_stdin(void *buf, int siz)
2939 {
2940 DWORD n;
2941
2942 if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
2943 return n;
2944 else
2945 return -1;
2946 }
2947 #elif defined(__VMS)
2948 # include <sys/socket.h>
2949
raw_read_stdin(void * buf,int siz)2950 int raw_read_stdin(void *buf, int siz)
2951 {
2952 return recv(fileno_stdin(), buf, siz, 0);
2953 }
2954 #else
raw_read_stdin(void * buf,int siz)2955 int raw_read_stdin(void *buf, int siz)
2956 {
2957 return read(fileno_stdin(), buf, siz);
2958 }
2959 #endif
2960
2961 #if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
raw_write_stdout(const void * buf,int siz)2962 int raw_write_stdout(const void *buf, int siz)
2963 {
2964 DWORD n;
2965
2966 if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
2967 return n;
2968 else
2969 return -1;
2970 }
2971 #elif defined(OPENSSL_SYS_TANDEM) && defined(OPENSSL_THREADS) \
2972 && defined(_SPT_MODEL_)
raw_write_stdout(const void * buf,int siz)2973 int raw_write_stdout(const void *buf, int siz)
2974 {
2975 return write(fileno(stdout), (void *)buf, siz);
2976 }
2977 #else
raw_write_stdout(const void * buf,int siz)2978 int raw_write_stdout(const void *buf, int siz)
2979 {
2980 return write(fileno_stdout(), buf, siz);
2981 }
2982 #endif
2983
2984 /*
2985 * Centralized handling of input and output files with format specification
2986 * The format is meant to show what the input and output is supposed to be,
2987 * and is therefore a show of intent more than anything else. However, it
2988 * does impact behavior on some platforms, such as differentiating between
2989 * text and binary input/output on non-Unix platforms
2990 */
dup_bio_in(int format)2991 BIO *dup_bio_in(int format)
2992 {
2993 return BIO_new_fp(stdin,
2994 BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
2995 }
2996
dup_bio_out(int format)2997 BIO *dup_bio_out(int format)
2998 {
2999 BIO *b = BIO_new_fp(stdout,
3000 BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
3001 void *prefix = NULL;
3002
3003 if (b == NULL)
3004 return NULL;
3005
3006 #ifdef OPENSSL_SYS_VMS
3007 if (FMT_istext(format))
3008 b = BIO_push(BIO_new(BIO_f_linebuffer()), b);
3009 #endif
3010
3011 if (FMT_istext(format)
3012 && (prefix = getenv("HARNESS_OSSL_PREFIX")) != NULL) {
3013 b = BIO_push(BIO_new(BIO_f_prefix()), b);
3014 BIO_set_prefix(b, prefix);
3015 }
3016
3017 return b;
3018 }
3019
dup_bio_err(int format)3020 BIO *dup_bio_err(int format)
3021 {
3022 BIO *b = BIO_new_fp(stderr,
3023 BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
3024
3025 #ifdef OPENSSL_SYS_VMS
3026 if (b != NULL && FMT_istext(format))
3027 b = BIO_push(BIO_new(BIO_f_linebuffer()), b);
3028 #endif
3029 return b;
3030 }
3031
unbuffer(FILE * fp)3032 void unbuffer(FILE *fp)
3033 {
3034 /*
3035 * On VMS, setbuf() will only take 32-bit pointers, and a compilation
3036 * with /POINTER_SIZE=64 will give off a MAYLOSEDATA2 warning here.
3037 * However, we trust that the C RTL will never give us a FILE pointer
3038 * above the first 4 GB of memory, so we simply turn off the warning
3039 * temporarily.
3040 */
3041 #if defined(OPENSSL_SYS_VMS) && defined(__DECC)
3042 # pragma environment save
3043 # pragma message disable maylosedata2
3044 #endif
3045 setbuf(fp, NULL);
3046 #if defined(OPENSSL_SYS_VMS) && defined(__DECC)
3047 # pragma environment restore
3048 #endif
3049 }
3050
modestr(char mode,int format)3051 static const char *modestr(char mode, int format)
3052 {
3053 OPENSSL_assert(mode == 'a' || mode == 'r' || mode == 'w');
3054
3055 switch (mode) {
3056 case 'a':
3057 return FMT_istext(format) ? "a" : "ab";
3058 case 'r':
3059 return FMT_istext(format) ? "r" : "rb";
3060 case 'w':
3061 return FMT_istext(format) ? "w" : "wb";
3062 }
3063 /* The assert above should make sure we never reach this point */
3064 return NULL;
3065 }
3066
modeverb(char mode)3067 static const char *modeverb(char mode)
3068 {
3069 switch (mode) {
3070 case 'a':
3071 return "appending";
3072 case 'r':
3073 return "reading";
3074 case 'w':
3075 return "writing";
3076 }
3077 return "(doing something)";
3078 }
3079
3080 /*
3081 * Open a file for writing, owner-read-only.
3082 */
bio_open_owner(const char * filename,int format,int private)3083 BIO *bio_open_owner(const char *filename, int format, int private)
3084 {
3085 FILE *fp = NULL;
3086 BIO *b = NULL;
3087 int textmode, bflags;
3088 #ifndef OPENSSL_NO_POSIX_IO
3089 int fd = -1, mode;
3090 #endif
3091
3092 if (!private || filename == NULL || strcmp(filename, "-") == 0)
3093 return bio_open_default(filename, 'w', format);
3094
3095 textmode = FMT_istext(format);
3096 #ifndef OPENSSL_NO_POSIX_IO
3097 mode = O_WRONLY;
3098 # ifdef O_CREAT
3099 mode |= O_CREAT;
3100 # endif
3101 # ifdef O_TRUNC
3102 mode |= O_TRUNC;
3103 # endif
3104 if (!textmode) {
3105 # ifdef O_BINARY
3106 mode |= O_BINARY;
3107 # elif defined(_O_BINARY)
3108 mode |= _O_BINARY;
3109 # endif
3110 }
3111
3112 # ifdef OPENSSL_SYS_VMS
3113 /*
3114 * VMS doesn't have O_BINARY, it just doesn't make sense. But,
3115 * it still needs to know that we're going binary, or fdopen()
3116 * will fail with "invalid argument"... so we tell VMS what the
3117 * context is.
3118 */
3119 if (!textmode)
3120 fd = open(filename, mode, 0600, "ctx=bin");
3121 else
3122 # endif
3123 fd = open(filename, mode, 0600);
3124 if (fd < 0)
3125 goto err;
3126 fp = fdopen(fd, modestr('w', format));
3127 #else /* OPENSSL_NO_POSIX_IO */
3128 /* Have stdio but not Posix IO, do the best we can */
3129 fp = fopen(filename, modestr('w', format));
3130 #endif /* OPENSSL_NO_POSIX_IO */
3131 if (fp == NULL)
3132 goto err;
3133 bflags = BIO_CLOSE;
3134 if (textmode)
3135 bflags |= BIO_FP_TEXT;
3136 b = BIO_new_fp(fp, bflags);
3137 if (b != NULL)
3138 return b;
3139
3140 err:
3141 BIO_printf(bio_err, "%s: Can't open \"%s\" for writing, %s\n",
3142 opt_getprog(), filename, strerror(errno));
3143 ERR_print_errors(bio_err);
3144 /* If we have fp, then fdopen took over fd, so don't close both. */
3145 if (fp != NULL)
3146 fclose(fp);
3147 #ifndef OPENSSL_NO_POSIX_IO
3148 else if (fd >= 0)
3149 close(fd);
3150 #endif
3151 return NULL;
3152 }
3153
bio_open_default_(const char * filename,char mode,int format,int quiet)3154 static BIO *bio_open_default_(const char *filename, char mode, int format,
3155 int quiet)
3156 {
3157 BIO *ret;
3158
3159 if (filename == NULL || strcmp(filename, "-") == 0) {
3160 ret = mode == 'r' ? dup_bio_in(format) : dup_bio_out(format);
3161 if (quiet) {
3162 ERR_clear_error();
3163 return ret;
3164 }
3165 if (ret != NULL)
3166 return ret;
3167 BIO_printf(bio_err,
3168 "Can't open %s, %s\n",
3169 mode == 'r' ? "stdin" : "stdout", strerror(errno));
3170 } else {
3171 ret = BIO_new_file(filename, modestr(mode, format));
3172 if (quiet) {
3173 ERR_clear_error();
3174 return ret;
3175 }
3176 if (ret != NULL)
3177 return ret;
3178 BIO_printf(bio_err,
3179 "Can't open \"%s\" for %s, %s\n",
3180 filename, modeverb(mode), strerror(errno));
3181 }
3182 ERR_print_errors(bio_err);
3183 return NULL;
3184 }
3185
bio_open_default(const char * filename,char mode,int format)3186 BIO *bio_open_default(const char *filename, char mode, int format)
3187 {
3188 return bio_open_default_(filename, mode, format, 0);
3189 }
3190
bio_open_default_quiet(const char * filename,char mode,int format)3191 BIO *bio_open_default_quiet(const char *filename, char mode, int format)
3192 {
3193 return bio_open_default_(filename, mode, format, 1);
3194 }
3195
mem_bio_to_file(BIO * in,const char * filename,int format,int private)3196 int mem_bio_to_file(BIO *in, const char *filename, int format, int private)
3197 {
3198 int rv = 0, ret = 0;
3199 BIO *out = NULL;
3200 BUF_MEM *mem_buffer = NULL;
3201
3202 rv = BIO_get_mem_ptr(in, &mem_buffer);
3203 if (rv <= 0) {
3204 BIO_puts(bio_err, "Error reading mem buffer\n");
3205 goto end;
3206 }
3207 out = bio_open_owner(filename, format, private);
3208 if (out == NULL)
3209 goto end;
3210 rv = BIO_write(out, mem_buffer->data, mem_buffer->length);
3211 if (rv < 0 || (size_t)rv != mem_buffer->length)
3212 BIO_printf(bio_err, "Error writing to output file: '%s'\n", filename);
3213 else
3214 ret = 1;
3215 end:
3216 if (!ret)
3217 ERR_print_errors(bio_err);
3218 BIO_free_all(out);
3219 return ret;
3220 }
3221
wait_for_async(SSL * s)3222 void wait_for_async(SSL *s)
3223 {
3224 /* On Windows select only works for sockets, so we simply don't wait */
3225 #ifndef OPENSSL_SYS_WINDOWS
3226 int width = 0;
3227 fd_set asyncfds;
3228 OSSL_ASYNC_FD *fds;
3229 size_t numfds;
3230 size_t i;
3231
3232 if (!SSL_get_all_async_fds(s, NULL, &numfds))
3233 return;
3234 if (numfds == 0)
3235 return;
3236 fds = app_malloc(sizeof(OSSL_ASYNC_FD) * numfds, "allocate async fds");
3237 if (!SSL_get_all_async_fds(s, fds, &numfds)) {
3238 OPENSSL_free(fds);
3239 return;
3240 }
3241
3242 FD_ZERO(&asyncfds);
3243 for (i = 0; i < numfds; i++) {
3244 if (width <= (int)fds[i])
3245 width = (int)fds[i] + 1;
3246 openssl_fdset((int)fds[i], &asyncfds);
3247 }
3248 select(width, (void *)&asyncfds, NULL, NULL, NULL);
3249 OPENSSL_free(fds);
3250 #endif
3251 }
3252
3253 /* if OPENSSL_SYS_WINDOWS is defined then so is OPENSSL_SYS_MSDOS */
3254 #if defined(OPENSSL_SYS_MSDOS)
has_stdin_waiting(void)3255 int has_stdin_waiting(void)
3256 {
3257 # if defined(OPENSSL_SYS_WINDOWS)
3258 HANDLE inhand = GetStdHandle(STD_INPUT_HANDLE);
3259 DWORD events = 0;
3260 INPUT_RECORD inputrec;
3261 DWORD insize = 1;
3262 BOOL peeked;
3263
3264 if (inhand == INVALID_HANDLE_VALUE) {
3265 return 0;
3266 }
3267
3268 peeked = PeekConsoleInput(inhand, &inputrec, insize, &events);
3269 if (!peeked) {
3270 /* Probably redirected input? _kbhit() does not work in this case */
3271 if (!feof(stdin)) {
3272 return 1;
3273 }
3274 return 0;
3275 }
3276 # endif
3277 return _kbhit();
3278 }
3279 #endif
3280
3281 /* Corrupt a signature by modifying final byte */
corrupt_signature(const ASN1_STRING * signature)3282 void corrupt_signature(const ASN1_STRING *signature)
3283 {
3284 unsigned char *s = signature->data;
3285
3286 s[signature->length - 1] ^= 0x1;
3287 }
3288
check_cert_time_string(const char * time,const char * desc)3289 int check_cert_time_string(const char *time, const char *desc)
3290 {
3291 if (time == NULL || strcmp(time, "today") == 0
3292 || ASN1_TIME_set_string_X509(NULL, time))
3293 return 1;
3294 BIO_printf(bio_err,
3295 "%s is invalid, it should be \"today\" or have format [CC]YYMMDDHHMMSSZ\n",
3296 desc);
3297 return 0;
3298 }
3299
set_cert_times(X509 * x,const char * startdate,const char * enddate,int days,int strict_compare_times)3300 int set_cert_times(X509 *x, const char *startdate, const char *enddate,
3301 int days, int strict_compare_times)
3302 {
3303 if (!check_cert_time_string(startdate, "start date"))
3304 return 0;
3305 if (!check_cert_time_string(enddate, "end date"))
3306 return 0;
3307 if (startdate == NULL || strcmp(startdate, "today") == 0) {
3308 if (X509_gmtime_adj(X509_getm_notBefore(x), 0) == NULL) {
3309 BIO_printf(bio_err, "Error setting notBefore certificate field\n");
3310 return 0;
3311 }
3312 } else {
3313 if (!ASN1_TIME_set_string_X509(X509_getm_notBefore(x), startdate)) {
3314 BIO_printf(bio_err, "Error setting notBefore certificate field\n");
3315 return 0;
3316 }
3317 }
3318 if (enddate != NULL && strcmp(enddate, "today") == 0) {
3319 enddate = NULL;
3320 days = 0;
3321 }
3322 if (enddate == NULL) {
3323 if (X509_time_adj_ex(X509_getm_notAfter(x), days, 0, NULL) == NULL) {
3324 BIO_printf(bio_err, "Error setting notAfter certificate field\n");
3325 return 0;
3326 }
3327 } else if (!ASN1_TIME_set_string_X509(X509_getm_notAfter(x), enddate)) {
3328 BIO_printf(bio_err, "Error setting notAfter certificate field\n");
3329 return 0;
3330 }
3331 if (ASN1_TIME_compare(X509_get0_notAfter(x), X509_get0_notBefore(x)) < 0) {
3332 BIO_printf(bio_err, "%s: end date before start date\n",
3333 strict_compare_times ? "Error" : "Warning");
3334 if (strict_compare_times)
3335 return 0;
3336 }
3337 return 1;
3338 }
3339
set_crl_lastupdate(X509_CRL * crl,const char * lastupdate)3340 int set_crl_lastupdate(X509_CRL *crl, const char *lastupdate)
3341 {
3342 int ret = 0;
3343 ASN1_TIME *tm = ASN1_TIME_new();
3344
3345 if (tm == NULL)
3346 goto end;
3347
3348 if (lastupdate == NULL) {
3349 if (X509_gmtime_adj(tm, 0) == NULL)
3350 goto end;
3351 } else {
3352 if (!ASN1_TIME_set_string_X509(tm, lastupdate))
3353 goto end;
3354 }
3355
3356 if (!X509_CRL_set1_lastUpdate(crl, tm))
3357 goto end;
3358
3359 ret = 1;
3360 end:
3361 ASN1_TIME_free(tm);
3362 return ret;
3363 }
3364
set_crl_nextupdate(X509_CRL * crl,const char * nextupdate,long days,long hours,long secs)3365 int set_crl_nextupdate(X509_CRL *crl, const char *nextupdate,
3366 long days, long hours, long secs)
3367 {
3368 int ret = 0;
3369 ASN1_TIME *tm = ASN1_TIME_new();
3370
3371 if (tm == NULL)
3372 goto end;
3373
3374 if (nextupdate == NULL) {
3375 if (X509_time_adj_ex(tm, days, hours * 60 * 60 + secs, NULL) == NULL)
3376 goto end;
3377 } else {
3378 if (!ASN1_TIME_set_string_X509(tm, nextupdate))
3379 goto end;
3380 }
3381
3382 if (!X509_CRL_set1_nextUpdate(crl, tm))
3383 goto end;
3384
3385 ret = 1;
3386 end:
3387 ASN1_TIME_free(tm);
3388 return ret;
3389 }
3390
make_uppercase(char * string)3391 void make_uppercase(char *string)
3392 {
3393 int i;
3394
3395 for (i = 0; string[i] != '\0'; i++)
3396 string[i] = toupper((unsigned char)string[i]);
3397 }
3398
app_params_new_from_opts(STACK_OF (OPENSSL_STRING)* opts,const OSSL_PARAM * paramdefs)3399 OSSL_PARAM *app_params_new_from_opts(STACK_OF(OPENSSL_STRING) *opts,
3400 const OSSL_PARAM *paramdefs)
3401 {
3402 OSSL_PARAM *params = NULL;
3403 size_t sz = (size_t)sk_OPENSSL_STRING_num(opts);
3404 size_t params_n;
3405 char *opt = "", *stmp, *vtmp = NULL;
3406 int found = 1;
3407
3408 if (opts == NULL)
3409 return NULL;
3410
3411 params = OPENSSL_zalloc(sizeof(OSSL_PARAM) * (sz + 1));
3412 if (params == NULL)
3413 return NULL;
3414
3415 for (params_n = 0; params_n < sz; params_n++) {
3416 opt = sk_OPENSSL_STRING_value(opts, (int)params_n);
3417 if ((stmp = OPENSSL_strdup(opt)) == NULL
3418 || (vtmp = strchr(stmp, ':')) == NULL)
3419 goto err;
3420 /* Replace ':' with 0 to terminate the string pointed to by stmp */
3421 *vtmp = 0;
3422 /* Skip over the separator so that vmtp points to the value */
3423 vtmp++;
3424 if (!OSSL_PARAM_allocate_from_text(¶ms[params_n], paramdefs,
3425 stmp, vtmp, strlen(vtmp), &found))
3426 goto err;
3427 OPENSSL_free(stmp);
3428 }
3429 params[params_n] = OSSL_PARAM_construct_end();
3430 return params;
3431 err:
3432 OPENSSL_free(stmp);
3433 BIO_printf(bio_err, "Parameter %s '%s'\n", found ? "error" : "unknown",
3434 opt);
3435 ERR_print_errors(bio_err);
3436 app_params_free(params);
3437 return NULL;
3438 }
3439
app_params_free(OSSL_PARAM * params)3440 void app_params_free(OSSL_PARAM *params)
3441 {
3442 int i;
3443
3444 if (params != NULL) {
3445 for (i = 0; params[i].key != NULL; ++i)
3446 OPENSSL_free(params[i].data);
3447 OPENSSL_free(params);
3448 }
3449 }
3450
app_keygen(EVP_PKEY_CTX * ctx,const char * alg,int bits,int verbose)3451 EVP_PKEY *app_keygen(EVP_PKEY_CTX *ctx, const char *alg, int bits, int verbose)
3452 {
3453 EVP_PKEY *res = NULL;
3454
3455 if (verbose && alg != NULL) {
3456 BIO_printf(bio_err, "Generating %s key", alg);
3457 if (bits > 0)
3458 BIO_printf(bio_err, " with %d bits\n", bits);
3459 else
3460 BIO_printf(bio_err, "\n");
3461 }
3462 if (!RAND_status())
3463 BIO_printf(bio_err, "Warning: generating random key material may take a long time\n"
3464 "if the system has a poor entropy source\n");
3465 if (EVP_PKEY_keygen(ctx, &res) <= 0)
3466 BIO_printf(bio_err, "%s: Error generating %s key\n", opt_getprog(),
3467 alg != NULL ? alg : "asymmetric");
3468 return res;
3469 }
3470
app_paramgen(EVP_PKEY_CTX * ctx,const char * alg)3471 EVP_PKEY *app_paramgen(EVP_PKEY_CTX *ctx, const char *alg)
3472 {
3473 EVP_PKEY *res = NULL;
3474
3475 if (!RAND_status())
3476 BIO_printf(bio_err, "Warning: generating random key parameters may take a long time\n"
3477 "if the system has a poor entropy source\n");
3478 if (EVP_PKEY_paramgen(ctx, &res) <= 0)
3479 BIO_printf(bio_err, "%s: Generating %s key parameters failed\n",
3480 opt_getprog(), alg != NULL ? alg : "asymmetric");
3481 return res;
3482 }
3483
3484 /*
3485 * Return non-zero if the legacy path is still an option.
3486 * This decision is based on the global command line operations and the
3487 * behaviour thus far.
3488 */
opt_legacy_okay(void)3489 int opt_legacy_okay(void)
3490 {
3491 int provider_options = opt_provider_option_given();
3492 int libctx = app_get0_libctx() != NULL || app_get0_propq() != NULL;
3493
3494 /*
3495 * Having a provider option specified or a custom library context or
3496 * property query, is a sure sign we're not using legacy.
3497 */
3498 if (provider_options || libctx)
3499 return 0;
3500 return 1;
3501 }
3502