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Document CVE-2021-4160
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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
55static 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
67static BIO *bio_open_default_(const char *filename, char mode, int format,
68 int quiet);
69
70#define PASS_SOURCE_SIZE_MAX 4
71
72DEFINE_STACK_OF(CONF)
73
74typedef struct {
75 const char *name;
76 unsigned long flag;
77 unsigned long mask;
78} NAME_EX_TBL;
79
80static int set_table_opts(unsigned long *flags, const char *arg,
81 const NAME_EX_TBL *in_tbl);
82static int set_multi_opts(unsigned long *flags, const char *arg,
83 const NAME_EX_TBL *in_tbl);
84int app_init(long mesgwin);
85
86#ifndef APP_INIT
87int app_init(long mesgwin)
88{
89 return 1;
90}
91#endif
92
93int 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
120int 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
130static unsigned long nmflag = 0;
131static char nmflag_set = 0;
132
133int 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
143unsigned 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
153void 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
159int 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
164static char *app_get_pass(const char *arg, int keepbio);
165
166char *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
185int 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
206static 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
297char *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
310int 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
324CONF *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
350CONF *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
361CONF *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
378int 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
397int 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
421CONF *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
439X509 *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
461X509_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 */
484X509_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 */
513X509_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
548void cleanse(char *str)
549{
550 if (str != NULL)
551 OPENSSL_cleanse(str, strlen(str));
552}
553
554void clear_free(char *str)
555{
556 if (str != NULL)
557 OPENSSL_clear_free(str, strlen(str));
558}
559
560EVP_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 */
579EVP_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
599EVP_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, &params, 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
621EVP_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
627void 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
638void *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
648void *app_malloc_array(size_t n, size_t sz, const char *what)
649{
650 void *vp = OPENSSL_malloc_array(n, sz);
651
652 if (vp == NULL)
653 app_bail_out("%s: Could not allocate %zu*%zu bytes for %s\n",
654 opt_getprog(), n, sz, what);
655 return vp;
656}
657
658char *next_item(char *opt) /* in list separated by comma and/or space */
659{
660 /* advance to separator (comma or whitespace), if any */
661 while (*opt != ',' && !isspace(_UC(*opt)) && *opt != '\0')
662 opt++;
663 if (*opt != '\0') {
664 /* terminate current item */
665 *opt++ = '\0';
666 /* skip over any whitespace after separator */
667 while (isspace(_UC(*opt)))
668 opt++;
669 }
670 return *opt == '\0' ? NULL : opt; /* NULL indicates end of input */
671}
672
673static void warn_cert_msg(const char *uri, X509 *cert, const char *msg)
674{
675 char *subj = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
676
677 BIO_printf(bio_err, "Warning: certificate from '%s' with subject '%s' %s\n",
678 uri, subj, msg);
679 OPENSSL_free(subj);
680}
681
682static void warn_cert(const char *uri, X509 *cert, int warn_EE,
683 X509_VERIFY_PARAM *vpm)
684{
685 uint32_t ex_flags = X509_get_extension_flags(cert);
686 /*
687 * This should not be used as as example for how to verify
688 * certificates. This treats an invalid not before or an invalid
689 * not after time in the certificate as infinitely valid, which
690 * you don't want outside of a toy testing function like this.
691 */
692 int res = X509_cmp_timeframe(vpm, X509_get0_notBefore(cert),
693 X509_get0_notAfter(cert));
694
695 if (res != 0)
696 warn_cert_msg(uri, cert, res > 0 ? "has expired" : "not yet valid");
697 if (warn_EE && (ex_flags & EXFLAG_V1) == 0 && (ex_flags & EXFLAG_CA) == 0)
698 warn_cert_msg(uri, cert, "is not a CA cert");
699}
700
701static void warn_certs(const char *uri, STACK_OF(X509) *certs, int warn_EE,
702 X509_VERIFY_PARAM *vpm)
703{
704 int i;
705
706 for (i = 0; i < sk_X509_num(certs); i++)
707 warn_cert(uri, sk_X509_value(certs, i), warn_EE, vpm);
708}
709
710int load_cert_certs(const char *uri,
711 X509 **pcert, STACK_OF(X509) **pcerts,
712 int exclude_http, const char *pass, const char *desc,
713 X509_VERIFY_PARAM *vpm)
714{
715 int ret = 0;
716 char *pass_string;
717
718 if (desc == NULL)
719 desc = pcerts == NULL ? "certificate" : "certificates";
720 if (exclude_http && (HAS_CASE_PREFIX(uri, "http://")
721 || HAS_CASE_PREFIX(uri, "https://"))) {
722 BIO_printf(bio_err, "error: HTTP retrieval not allowed for %s\n", desc);
723 return ret;
724 }
725 pass_string = get_passwd(pass, desc);
726 ret = load_key_certs_crls(uri, FORMAT_UNDEF, 0, pass_string, desc, 0,
727 NULL, NULL, NULL, pcert, pcerts, NULL, NULL);
728 clear_free(pass_string);
729
730 if (ret) {
731 if (pcert != NULL)
732 warn_cert(uri, *pcert, 0, vpm);
733 if (pcerts != NULL)
734 warn_certs(uri, *pcerts, 1, vpm);
735 } else {
736 if (pcerts != NULL) {
737 OSSL_STACK_OF_X509_free(*pcerts);
738 *pcerts = NULL;
739 }
740 }
741 return ret;
742}
743
744STACK_OF(X509) *load_certs_multifile(char *files, const char *pass,
745 const char *desc, X509_VERIFY_PARAM *vpm)
746{
747 STACK_OF(X509) *certs = NULL;
748 STACK_OF(X509) *result = sk_X509_new_null();
749
750 if (files == NULL)
751 goto err;
752 if (result == NULL)
753 goto oom;
754
755 while (files != NULL) {
756 char *next = next_item(files);
757
758 if (!load_cert_certs(files, NULL, &certs, 0, pass, desc, vpm))
759 goto err;
760 if (!X509_add_certs(result, certs,
761 X509_ADD_FLAG_UP_REF | X509_ADD_FLAG_NO_DUP))
762 goto oom;
763 OSSL_STACK_OF_X509_free(certs);
764 certs = NULL;
765 files = next;
766 }
767 return result;
768
769 oom:
770 BIO_printf(bio_err, "out of memory\n");
771 err:
772 OSSL_STACK_OF_X509_free(certs);
773 OSSL_STACK_OF_X509_free(result);
774 return NULL;
775}
776
777static X509_STORE *sk_X509_to_store(X509_STORE *store /* may be NULL */,
778 const STACK_OF(X509) *certs /* may NULL */)
779{
780 int i;
781
782 if (store == NULL)
783 store = X509_STORE_new();
784 if (store == NULL)
785 return NULL;
786 for (i = 0; i < sk_X509_num(certs); i++) {
787 if (!X509_STORE_add_cert(store, sk_X509_value(certs, i))) {
788 X509_STORE_free(store);
789 return NULL;
790 }
791 }
792 return store;
793}
794
795/*
796 * Create cert store structure with certificates read from given file(s).
797 * Returns pointer to created X509_STORE on success, NULL on error.
798 */
799X509_STORE *load_certstore(char *input, const char *pass, const char *desc,
800 X509_VERIFY_PARAM *vpm)
801{
802 X509_STORE *store = NULL;
803 STACK_OF(X509) *certs = NULL;
804
805 while (input != NULL) {
806 char *next = next_item(input);
807 int ok;
808
809 if (!load_cert_certs(input, NULL, &certs, 1, pass, desc, vpm)) {
810 X509_STORE_free(store);
811 return NULL;
812 }
813 ok = (store = sk_X509_to_store(store, certs)) != NULL;
814 OSSL_STACK_OF_X509_free(certs);
815 certs = NULL;
816 if (!ok)
817 return NULL;
818 input = next;
819 }
820 return store;
821}
822
823/*
824 * Initialize or extend, if *certs != NULL, a certificate stack.
825 * The caller is responsible for freeing *certs if its value is left not NULL.
826 */
827int load_certs(const char *uri, int maybe_stdin, STACK_OF(X509) **certs,
828 const char *pass, const char *desc)
829{
830 int ret, was_NULL = *certs == NULL;
831
832 if (desc == NULL)
833 desc = "certificates";
834 ret = load_key_certs_crls(uri, FORMAT_UNDEF, maybe_stdin, pass, desc, 0,
835 NULL, NULL, NULL, NULL, certs, NULL, NULL);
836
837 if (!ret && was_NULL) {
838 OSSL_STACK_OF_X509_free(*certs);
839 *certs = NULL;
840 }
841 return ret;
842}
843
844/*
845 * Initialize or extend, if *crls != NULL, a certificate stack.
846 * The caller is responsible for freeing *crls if its value is left not NULL.
847 */
848int load_crls(const char *uri, STACK_OF(X509_CRL) **crls,
849 const char *pass, const char *desc)
850{
851 int ret, was_NULL = *crls == NULL;
852
853 if (desc == NULL)
854 desc = "CRLs";
855 ret = load_key_certs_crls(uri, FORMAT_UNDEF, 0, pass, desc, 0,
856 NULL, NULL, NULL, NULL, NULL, NULL, crls);
857
858 if (!ret && was_NULL) {
859 sk_X509_CRL_pop_free(*crls, X509_CRL_free);
860 *crls = NULL;
861 }
862 return ret;
863}
864
865static const char *format2string(int format)
866{
867 switch (format) {
868 case FORMAT_PEM:
869 return "PEM";
870 case FORMAT_ASN1:
871 return "DER";
872 case FORMAT_PVK:
873 return "PVK";
874 case FORMAT_MSBLOB:
875 return "MSBLOB";
876 }
877 return NULL;
878}
879
880/* Set type expectation, but set to 0 if objects of multiple types expected. */
881#define SET_EXPECT(val) \
882 (expect = expect < 0 ? (val) : (expect == (val) ? (val) : 0))
883#define SET_EXPECT1(pvar, val) \
884 if ((pvar) != NULL) { \
885 *(pvar) = NULL; \
886 SET_EXPECT(val); \
887 }
888/* Provide (error msg) text for some of the credential types to be loaded. */
889#define FAIL_NAME \
890 (ppkey != NULL ? "private key" : ppubkey != NULL ? "public key" : \
891 pparams != NULL ? "key parameters" : \
892 pcert != NULL ? "certificate" : pcerts != NULL ? "certificates" : \
893 pcrl != NULL ? "CRL" : pcrls != NULL ? "CRLs" : NULL)
894/*
895 * Load those types of credentials for which the result pointer is not NULL.
896 * Reads from stdin if 'uri' is NULL and 'maybe_stdin' is nonzero.
897 * 'format' parameter may be FORMAT_PEM, FORMAT_ASN1, or 0 for no hint.
898 * desc may contain more detail on the credential(s) to be loaded for error msg
899 * For non-NULL ppkey, pcert, and pcrl the first suitable value found is loaded.
900 * If pcerts is non-NULL and *pcerts == NULL then a new cert list is allocated.
901 * If pcerts is non-NULL then all available certificates are appended to *pcerts
902 * except any certificate assigned to *pcert.
903 * If pcrls is non-NULL and *pcrls == NULL then a new list of CRLs is allocated.
904 * If pcrls is non-NULL then all available CRLs are appended to *pcerts
905 * except any CRL assigned to *pcrl.
906 * In any case (also on error) the caller is responsible for freeing all members
907 * of *pcerts and *pcrls (as far as they are not NULL).
908 */
909int load_key_certs_crls(const char *uri, int format, int maybe_stdin,
910 const char *pass, const char *desc, int quiet,
911 EVP_PKEY **ppkey, EVP_PKEY **ppubkey,
912 EVP_PKEY **pparams,
913 X509 **pcert, STACK_OF(X509) **pcerts,
914 X509_CRL **pcrl, STACK_OF(X509_CRL) **pcrls)
915{
916 PW_CB_DATA uidata;
917 OSSL_STORE_CTX *ctx = NULL;
918 OSSL_LIB_CTX *libctx = app_get0_libctx();
919 const char *propq = app_get0_propq();
920 int ncerts = 0, ncrls = 0, expect = -1;
921 const char *failed = FAIL_NAME;
922 const char *input_type;
923 OSSL_PARAM itp[2];
924 const OSSL_PARAM *params = NULL;
925
926 /* 'failed' describes type of credential to load for potential error msg */
927 if (failed == NULL) {
928 if (!quiet)
929 BIO_printf(bio_err, "Internal error: nothing was requested to load from %s\n",
930 uri != NULL ? uri : "<stdin>");
931 return 0;
932 }
933 /* suppress any extraneous errors left over from failed parse attempts */
934 ERR_set_mark();
935
936 SET_EXPECT1(ppkey, OSSL_STORE_INFO_PKEY);
937 SET_EXPECT1(ppubkey, OSSL_STORE_INFO_PUBKEY);
938 SET_EXPECT1(pparams, OSSL_STORE_INFO_PARAMS);
939 SET_EXPECT1(pcert, OSSL_STORE_INFO_CERT);
940 /*
941 * Up to here, the following holds.
942 * If just one of the ppkey, ppubkey, pparams, and pcert function parameters
943 * is nonzero, expect > 0 indicates which type of credential is expected.
944 * If expect == 0, more than one of them is nonzero (multiple types expected).
945 */
946
947 if (pcerts != NULL) {
948 if (*pcerts == NULL && (*pcerts = sk_X509_new_null()) == NULL) {
949 if (!quiet)
950 BIO_printf(bio_err, "Out of memory loading");
951 goto end;
952 }
953 /*
954 * Adapt the 'expect' variable:
955 * set to OSSL_STORE_INFO_CERT if no other type is expected so far,
956 * otherwise set to 0 (indicating that multiple types are expected).
957 */
958 SET_EXPECT(OSSL_STORE_INFO_CERT);
959 }
960 SET_EXPECT1(pcrl, OSSL_STORE_INFO_CRL);
961 if (pcrls != NULL) {
962 if (*pcrls == NULL && (*pcrls = sk_X509_CRL_new_null()) == NULL) {
963 if (!quiet)
964 BIO_printf(bio_err, "Out of memory loading");
965 goto end;
966 }
967 /*
968 * Adapt the 'expect' variable:
969 * set to OSSL_STORE_INFO_CRL if no other type is expected so far,
970 * otherwise set to 0 (indicating that multiple types are expected).
971 */
972 SET_EXPECT(OSSL_STORE_INFO_CRL);
973 }
974
975 uidata.password = pass;
976 uidata.prompt_info = uri;
977
978 if ((input_type = format2string(format)) != NULL) {
979 itp[0] = OSSL_PARAM_construct_utf8_string(OSSL_STORE_PARAM_INPUT_TYPE,
980 (char *)input_type, 0);
981 itp[1] = OSSL_PARAM_construct_end();
982 params = itp;
983 }
984
985 if (uri == NULL) {
986 BIO *bio;
987
988 if (!maybe_stdin) {
989 if (!quiet)
990 BIO_printf(bio_err, "No filename or uri specified for loading\n");
991 goto end;
992 }
993 uri = "<stdin>";
994 unbuffer(stdin);
995 bio = BIO_new_fp(stdin, 0);
996 if (bio != NULL) {
997 ctx = OSSL_STORE_attach(bio, "file", libctx, propq,
998 get_ui_method(), &uidata, params,
999 NULL, NULL);
1000 BIO_free(bio);
1001 }
1002 } else {
1003 ctx = OSSL_STORE_open_ex(uri, libctx, propq, get_ui_method(), &uidata,
1004 params, NULL, NULL);
1005 }
1006 if (ctx == NULL) {
1007 if (!quiet)
1008 BIO_printf(bio_err, "Could not open file or uri for loading");
1009 goto end;
1010 }
1011 /* expect == 0 means here multiple types of credentials are to be loaded */
1012 if (expect > 0 && !OSSL_STORE_expect(ctx, expect)) {
1013 if (!quiet)
1014 BIO_printf(bio_err, "Internal error trying to load");
1015 goto end;
1016 }
1017
1018 failed = NULL;
1019 /* from here, failed != NULL only if actually an error has been detected */
1020
1021 while ((ppkey != NULL || ppubkey != NULL || pparams != NULL
1022 || pcert != NULL || pcerts != NULL || pcrl != NULL || pcrls != NULL)
1023 && !OSSL_STORE_eof(ctx)) {
1024 OSSL_STORE_INFO *info = OSSL_STORE_load(ctx);
1025 int type, ok = 1;
1026
1027 /*
1028 * This can happen (for example) if we attempt to load a file with
1029 * multiple different types of things in it - but the thing we just
1030 * tried to load wasn't one of the ones we wanted, e.g. if we're trying
1031 * to load a certificate but the file has both the private key and the
1032 * certificate in it. We just retry until eof.
1033 */
1034 if (info == NULL) {
1035 continue;
1036 }
1037
1038 type = OSSL_STORE_INFO_get_type(info);
1039 switch (type) {
1040 case OSSL_STORE_INFO_PKEY:
1041 if (ppkey != NULL) {
1042 ok = (*ppkey = OSSL_STORE_INFO_get1_PKEY(info)) != NULL;
1043 if (ok)
1044 ppkey = NULL;
1045 break;
1046 }
1047 /*
1048 * An EVP_PKEY with private parts also holds the public parts,
1049 * so if the caller asked for a public key, and we got a private
1050 * key, we can still pass it back.
1051 */
1052 /* fall through */
1053 case OSSL_STORE_INFO_PUBKEY:
1054 if (ppubkey != NULL) {
1055 ok = (*ppubkey = OSSL_STORE_INFO_get1_PUBKEY(info)) != NULL;
1056 if (ok)
1057 ppubkey = NULL;
1058 }
1059 break;
1060 case OSSL_STORE_INFO_PARAMS:
1061 if (pparams != NULL) {
1062 ok = (*pparams = OSSL_STORE_INFO_get1_PARAMS(info)) != NULL;
1063 if (ok)
1064 pparams = NULL;
1065 }
1066 break;
1067 case OSSL_STORE_INFO_CERT:
1068 if (pcert != NULL) {
1069 ok = (*pcert = OSSL_STORE_INFO_get1_CERT(info)) != NULL;
1070 if (ok)
1071 pcert = NULL;
1072 } else if (pcerts != NULL) {
1073 ok = X509_add_cert(*pcerts,
1074 OSSL_STORE_INFO_get1_CERT(info),
1075 X509_ADD_FLAG_DEFAULT);
1076 }
1077 ncerts += ok;
1078 break;
1079 case OSSL_STORE_INFO_CRL:
1080 if (pcrl != NULL) {
1081 ok = (*pcrl = OSSL_STORE_INFO_get1_CRL(info)) != NULL;
1082 if (ok)
1083 pcrl = NULL;
1084 } else if (pcrls != NULL) {
1085 ok = sk_X509_CRL_push(*pcrls, OSSL_STORE_INFO_get1_CRL(info));
1086 }
1087 ncrls += ok;
1088 break;
1089 default:
1090 /* skip any other type; ok stays == 1 */
1091 break;
1092 }
1093 OSSL_STORE_INFO_free(info);
1094 if (!ok) {
1095 failed = OSSL_STORE_INFO_type_string(type);
1096 if (!quiet)
1097 BIO_printf(bio_err, "Error reading");
1098 break;
1099 }
1100 }
1101
1102 end:
1103 OSSL_STORE_close(ctx);
1104
1105 /* see if any of the requested types of credentials was not found */
1106 if (failed == NULL) {
1107 if (ncerts > 0)
1108 pcerts = NULL;
1109 if (ncrls > 0)
1110 pcrls = NULL;
1111 failed = FAIL_NAME;
1112 if (failed != NULL && !quiet)
1113 BIO_printf(bio_err, "Could not find");
1114 }
1115
1116 if (failed != NULL && !quiet) {
1117 unsigned long err = ERR_peek_last_error();
1118
1119 /* continue the error message with the type of credential affected */
1120 if (desc != NULL && strstr(desc, failed) != NULL) {
1121 BIO_printf(bio_err, " %s", desc);
1122 } else {
1123 BIO_printf(bio_err, " %s", failed);
1124 if (desc != NULL)
1125 BIO_printf(bio_err, " of %s", desc);
1126 }
1127 if (uri != NULL)
1128 BIO_printf(bio_err, " from %s", uri);
1129 if (ERR_SYSTEM_ERROR(err)) {
1130 /* provide more readable diagnostic output */
1131 BIO_printf(bio_err, ": %s", strerror(ERR_GET_REASON(err)));
1132 ERR_pop_to_mark();
1133 ERR_set_mark();
1134 }
1135 BIO_printf(bio_err, "\n");
1136 ERR_print_errors(bio_err);
1137 }
1138 if (quiet || failed == NULL)
1139 /* clear any suppressed or spurious errors */
1140 ERR_pop_to_mark();
1141 else
1142 ERR_clear_last_mark();
1143 return failed == NULL;
1144}
1145
1146#define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
1147#define X509V3_EXT_DEFAULT 0 /* Return error for unknown exts */
1148#define X509V3_EXT_ERROR_UNKNOWN (1L << 16) /* Print error for unknown exts */
1149#define X509V3_EXT_PARSE_UNKNOWN (2L << 16) /* ASN1 parse unknown extensions */
1150#define X509V3_EXT_DUMP_UNKNOWN (3L << 16) /* BIO_dump unknown extensions */
1151
1152#define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1153 X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1154
1155int set_cert_ex(unsigned long *flags, const char *arg)
1156{
1157 static const NAME_EX_TBL cert_tbl[] = {
1158 {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
1159 {"ca_default", X509_FLAG_CA, 0xffffffffl},
1160 {"no_header", X509_FLAG_NO_HEADER, 0},
1161 {"no_version", X509_FLAG_NO_VERSION, 0},
1162 {"no_serial", X509_FLAG_NO_SERIAL, 0},
1163 {"no_signame", X509_FLAG_NO_SIGNAME, 0},
1164 {"no_validity", X509_FLAG_NO_VALIDITY, 0},
1165 {"no_subject", X509_FLAG_NO_SUBJECT, 0},
1166 {"no_issuer", X509_FLAG_NO_ISSUER, 0},
1167 {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1168 {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1169 {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1170 {"no_aux", X509_FLAG_NO_AUX, 0},
1171 {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1172 {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1173 {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1174 {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1175 {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1176 {NULL, 0, 0}
1177 };
1178 return set_multi_opts(flags, arg, cert_tbl);
1179}
1180
1181int set_name_ex(unsigned long *flags, const char *arg)
1182{
1183 static const NAME_EX_TBL ex_tbl[] = {
1184 {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1185 {"esc_2254", ASN1_STRFLGS_ESC_2254, 0},
1186 {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1187 {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1188 {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1189 {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1190 {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1191 {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1192 {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1193 {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1194 {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1195 {"compat", XN_FLAG_COMPAT, 0xffffffffL},
1196 {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1197 {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1198 {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1199 {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1200 {"dn_rev", XN_FLAG_DN_REV, 0},
1201 {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1202 {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1203 {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1204 {"align", XN_FLAG_FN_ALIGN, 0},
1205 {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1206 {"space_eq", XN_FLAG_SPC_EQ, 0},
1207 {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1208 {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1209 {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
1210 {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1211 {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1212 {NULL, 0, 0}
1213 };
1214 if (set_multi_opts(flags, arg, ex_tbl) == 0)
1215 return 0;
1216 if (*flags != XN_FLAG_COMPAT
1217 && (*flags & XN_FLAG_SEP_MASK) == 0)
1218 *flags |= XN_FLAG_SEP_CPLUS_SPC;
1219 return 1;
1220}
1221
1222int set_dateopt(unsigned long *dateopt, const char *arg)
1223{
1224 if (OPENSSL_strcasecmp(arg, "rfc_822") == 0)
1225 *dateopt = ASN1_DTFLGS_RFC822;
1226 else if (OPENSSL_strcasecmp(arg, "iso_8601") == 0)
1227 *dateopt = ASN1_DTFLGS_ISO8601;
1228 else
1229 return 0;
1230 return 1;
1231}
1232
1233int set_ext_copy(int *copy_type, const char *arg)
1234{
1235 if (OPENSSL_strcasecmp(arg, "none") == 0)
1236 *copy_type = EXT_COPY_NONE;
1237 else if (OPENSSL_strcasecmp(arg, "copy") == 0)
1238 *copy_type = EXT_COPY_ADD;
1239 else if (OPENSSL_strcasecmp(arg, "copyall") == 0)
1240 *copy_type = EXT_COPY_ALL;
1241 else
1242 return 0;
1243 return 1;
1244}
1245
1246int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1247{
1248 STACK_OF(X509_EXTENSION) *exts;
1249 int i, ret = 0;
1250
1251 if (x == NULL || req == NULL)
1252 return 0;
1253 if (copy_type == EXT_COPY_NONE)
1254 return 1;
1255 exts = X509_REQ_get_extensions(req);
1256
1257 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1258 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
1259 ASN1_OBJECT *obj = X509_EXTENSION_get_object(ext);
1260 int idx = X509_get_ext_by_OBJ(x, obj, -1);
1261
1262 /* Does extension exist in target? */
1263 if (idx != -1) {
1264 /* If normal copy don't override existing extension */
1265 if (copy_type == EXT_COPY_ADD)
1266 continue;
1267 /* Delete all extensions of same type */
1268 do {
1269 X509_EXTENSION_free(X509_delete_ext(x, idx));
1270 idx = X509_get_ext_by_OBJ(x, obj, -1);
1271 } while (idx != -1);
1272 }
1273 if (!X509_add_ext(x, ext, -1))
1274 goto end;
1275 }
1276 ret = 1;
1277
1278 end:
1279 sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1280 return ret;
1281}
1282
1283static int set_multi_opts(unsigned long *flags, const char *arg,
1284 const NAME_EX_TBL *in_tbl)
1285{
1286 STACK_OF(CONF_VALUE) *vals;
1287 CONF_VALUE *val;
1288 int i, ret = 1;
1289
1290 if (!arg)
1291 return 0;
1292 vals = X509V3_parse_list(arg);
1293 for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1294 val = sk_CONF_VALUE_value(vals, i);
1295 if (!set_table_opts(flags, val->name, in_tbl))
1296 ret = 0;
1297 }
1298 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1299 return ret;
1300}
1301
1302static int set_table_opts(unsigned long *flags, const char *arg,
1303 const NAME_EX_TBL *in_tbl)
1304{
1305 char c;
1306 const NAME_EX_TBL *ptbl;
1307
1308 c = arg[0];
1309 if (c == '-') {
1310 c = 0;
1311 arg++;
1312 } else if (c == '+') {
1313 c = 1;
1314 arg++;
1315 } else {
1316 c = 1;
1317 }
1318
1319 for (ptbl = in_tbl; ptbl->name; ptbl++) {
1320 if (OPENSSL_strcasecmp(arg, ptbl->name) == 0) {
1321 *flags &= ~ptbl->mask;
1322 if (c)
1323 *flags |= ptbl->flag;
1324 else
1325 *flags &= ~ptbl->flag;
1326 return 1;
1327 }
1328 }
1329 return 0;
1330}
1331
1332void print_name(BIO *out, const char *title, const X509_NAME *nm)
1333{
1334 char *buf;
1335 char mline = 0;
1336 int indent = 0;
1337 unsigned long lflags = get_nameopt();
1338
1339 if (out == NULL)
1340 return;
1341 if (title != NULL)
1342 BIO_puts(out, title);
1343 if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1344 mline = 1;
1345 indent = 4;
1346 }
1347 if (lflags == XN_FLAG_COMPAT) {
1348 buf = X509_NAME_oneline(nm, 0, 0);
1349 BIO_puts(out, buf);
1350 BIO_puts(out, "\n");
1351 OPENSSL_free(buf);
1352 } else {
1353 if (mline)
1354 BIO_puts(out, "\n");
1355 X509_NAME_print_ex(out, nm, indent, lflags);
1356 BIO_puts(out, "\n");
1357 }
1358}
1359
1360void print_bignum_var(BIO *out, const BIGNUM *in, const char *var,
1361 int len, unsigned char *buffer)
1362{
1363 BIO_printf(out, " static unsigned char %s_%d[] = {", var, len);
1364 if (BN_is_zero(in)) {
1365 BIO_printf(out, "\n 0x00");
1366 } else {
1367 int i, l;
1368
1369 l = BN_bn2bin(in, buffer);
1370 for (i = 0; i < l; i++) {
1371 BIO_printf(out, (i % 10) == 0 ? "\n " : " ");
1372 if (i < l - 1)
1373 BIO_printf(out, "0x%02X,", buffer[i]);
1374 else
1375 BIO_printf(out, "0x%02X", buffer[i]);
1376 }
1377 }
1378 BIO_printf(out, "\n };\n");
1379}
1380
1381void print_array(BIO *out, const char *title, int len, const unsigned char *d)
1382{
1383 int i;
1384
1385 BIO_printf(out, "unsigned char %s[%d] = {", title, len);
1386 for (i = 0; i < len; i++) {
1387 if ((i % 10) == 0)
1388 BIO_printf(out, "\n ");
1389 if (i < len - 1)
1390 BIO_printf(out, "0x%02X, ", d[i]);
1391 else
1392 BIO_printf(out, "0x%02X", d[i]);
1393 }
1394 BIO_printf(out, "\n};\n");
1395}
1396
1397X509_STORE *setup_verify(const char *CAfile, int noCAfile,
1398 const char *CApath, int noCApath,
1399 const char *CAstore, int noCAstore)
1400{
1401 X509_STORE *store = X509_STORE_new();
1402 X509_LOOKUP *lookup;
1403 OSSL_LIB_CTX *libctx = app_get0_libctx();
1404 const char *propq = app_get0_propq();
1405
1406 if (store == NULL)
1407 goto end;
1408
1409 if (CAfile != NULL || !noCAfile) {
1410 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1411 if (lookup == NULL)
1412 goto end;
1413 if (CAfile != NULL) {
1414 if (X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_PEM,
1415 libctx, propq) <= 0) {
1416 ERR_clear_error();
1417 if (X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_ASN1,
1418 libctx, propq) <= 0) {
1419 BIO_printf(bio_err, "Error loading file %s\n", CAfile);
1420 goto end;
1421 }
1422 }
1423 } else {
1424 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT,
1425 libctx, propq);
1426 }
1427 }
1428
1429 if (CApath != NULL || !noCApath) {
1430 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1431 if (lookup == NULL)
1432 goto end;
1433 if (CApath != NULL) {
1434 if (X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM) <= 0) {
1435 BIO_printf(bio_err, "Error loading directory %s\n", CApath);
1436 goto end;
1437 }
1438 } else {
1439 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1440 }
1441 }
1442
1443 if (CAstore != NULL || !noCAstore) {
1444 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_store());
1445 if (lookup == NULL)
1446 goto end;
1447 if (!X509_LOOKUP_add_store_ex(lookup, CAstore, libctx, propq)) {
1448 if (CAstore != NULL)
1449 BIO_printf(bio_err, "Error loading store URI %s\n", CAstore);
1450 goto end;
1451 }
1452 }
1453
1454 ERR_clear_error();
1455 return store;
1456 end:
1457 ERR_print_errors(bio_err);
1458 X509_STORE_free(store);
1459 return NULL;
1460}
1461
1462static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
1463{
1464 const char *n;
1465
1466 n = a[DB_serial];
1467 while (*n == '0')
1468 n++;
1469 return OPENSSL_LH_strhash(n);
1470}
1471
1472static int index_serial_cmp(const OPENSSL_CSTRING *a,
1473 const OPENSSL_CSTRING *b)
1474{
1475 const char *aa, *bb;
1476
1477 for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1478 for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1479 return strcmp(aa, bb);
1480}
1481
1482static int index_name_qual(char **a)
1483{
1484 return (a[0][0] == 'V');
1485}
1486
1487static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
1488{
1489 return OPENSSL_LH_strhash(a[DB_name]);
1490}
1491
1492int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
1493{
1494 return strcmp(a[DB_name], b[DB_name]);
1495}
1496
1497static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
1498static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
1499static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
1500static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
1501#undef BSIZE
1502#define BSIZE 256
1503BIGNUM *load_serial(const char *serialfile, int *exists, int create,
1504 ASN1_INTEGER **retai)
1505{
1506 BIO *in = NULL;
1507 BIGNUM *ret = NULL;
1508 char buf[1024];
1509 ASN1_INTEGER *ai = NULL;
1510
1511 ai = ASN1_INTEGER_new();
1512 if (ai == NULL)
1513 goto err;
1514
1515 in = BIO_new_file(serialfile, "r");
1516 if (exists != NULL)
1517 *exists = in != NULL;
1518 if (in == NULL) {
1519 if (!create) {
1520 perror(serialfile);
1521 goto err;
1522 }
1523 ERR_clear_error();
1524 ret = BN_new();
1525 if (ret == NULL) {
1526 BIO_printf(bio_err, "Out of memory\n");
1527 } else if (!rand_serial(ret, ai)) {
1528 BIO_printf(bio_err, "Error creating random number to store in %s\n",
1529 serialfile);
1530 BN_free(ret);
1531 ret = NULL;
1532 }
1533 } else {
1534 if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1535 BIO_printf(bio_err, "Unable to load number from %s\n",
1536 serialfile);
1537 goto err;
1538 }
1539 ret = ASN1_INTEGER_to_BN(ai, NULL);
1540 if (ret == NULL) {
1541 BIO_printf(bio_err, "Error converting number from bin to BIGNUM\n");
1542 goto err;
1543 }
1544 }
1545
1546 if (ret != NULL && retai != NULL) {
1547 *retai = ai;
1548 ai = NULL;
1549 }
1550 err:
1551 if (ret == NULL)
1552 ERR_print_errors(bio_err);
1553 BIO_free(in);
1554 ASN1_INTEGER_free(ai);
1555 return ret;
1556}
1557
1558int save_serial(const char *serialfile, const char *suffix,
1559 const BIGNUM *serial, ASN1_INTEGER **retai)
1560{
1561 char buf[1][BSIZE];
1562 BIO *out = NULL;
1563 int ret = 0;
1564 ASN1_INTEGER *ai = NULL;
1565 size_t j;
1566
1567 if (suffix == NULL)
1568 j = strlen(serialfile);
1569 else
1570 j = strlen(serialfile) + strlen(suffix) + 1;
1571 if (j >= BSIZE) {
1572 BIO_printf(bio_err, "File name too long\n");
1573 goto err;
1574 }
1575
1576 if (suffix == NULL) {
1577 OPENSSL_strlcpy(buf[0], serialfile, BSIZE);
1578 } else {
1579#ifndef OPENSSL_SYS_VMS
1580 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, suffix);
1581#else
1582 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, suffix);
1583#endif
1584 }
1585 out = BIO_new_file(buf[0], "w");
1586 if (out == NULL) {
1587 goto err;
1588 }
1589
1590 if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1591 BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1592 goto err;
1593 }
1594 i2a_ASN1_INTEGER(out, ai);
1595 BIO_puts(out, "\n");
1596 ret = 1;
1597 if (retai) {
1598 *retai = ai;
1599 ai = NULL;
1600 }
1601 err:
1602 if (!ret)
1603 ERR_print_errors(bio_err);
1604 BIO_free_all(out);
1605 ASN1_INTEGER_free(ai);
1606 return ret;
1607}
1608
1609int rotate_serial(const char *serialfile, const char *new_suffix,
1610 const char *old_suffix)
1611{
1612 char buf[2][BSIZE];
1613 size_t i, j;
1614
1615 i = strlen(serialfile) + strlen(old_suffix);
1616 j = strlen(serialfile) + strlen(new_suffix);
1617 if (i > j)
1618 j = i;
1619 if (j + 1 >= BSIZE) {
1620 BIO_printf(bio_err, "File name too long\n");
1621 goto err;
1622 }
1623#ifndef OPENSSL_SYS_VMS
1624 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, new_suffix);
1625 BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", serialfile, old_suffix);
1626#else
1627 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, new_suffix);
1628 BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", serialfile, old_suffix);
1629#endif
1630 if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
1631#ifdef ENOTDIR
1632 && errno != ENOTDIR
1633#endif
1634 ) {
1635 BIO_printf(bio_err,
1636 "Unable to rename %s to %s\n", serialfile, buf[1]);
1637 perror("reason");
1638 goto err;
1639 }
1640 if (rename(buf[0], serialfile) < 0) {
1641 BIO_printf(bio_err,
1642 "Unable to rename %s to %s\n", buf[0], serialfile);
1643 perror("reason");
1644 rename(buf[1], serialfile);
1645 goto err;
1646 }
1647 return 1;
1648 err:
1649 ERR_print_errors(bio_err);
1650 return 0;
1651}
1652
1653int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1654{
1655 BIGNUM *btmp;
1656 int ret = 0;
1657
1658 btmp = b == NULL ? BN_new() : b;
1659 if (btmp == NULL)
1660 return 0;
1661
1662 if (!BN_rand(btmp, SERIAL_RAND_BITS, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))
1663 goto error;
1664 if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1665 goto error;
1666
1667 ret = 1;
1668
1669 error:
1670
1671 if (btmp != b)
1672 BN_free(btmp);
1673
1674 return ret;
1675}
1676
1677CA_DB *load_index(const char *dbfile, DB_ATTR *db_attr)
1678{
1679 CA_DB *retdb = NULL;
1680 TXT_DB *tmpdb = NULL;
1681 BIO *in;
1682 CONF *dbattr_conf = NULL;
1683 char buf[BSIZE];
1684#ifndef OPENSSL_NO_POSIX_IO
1685 FILE *dbfp;
1686 struct stat dbst;
1687#endif
1688
1689 in = BIO_new_file(dbfile, "r");
1690 if (in == NULL)
1691 goto err;
1692
1693#ifndef OPENSSL_NO_POSIX_IO
1694 BIO_get_fp(in, &dbfp);
1695 if (fstat(fileno(dbfp), &dbst) == -1) {
1696 ERR_raise_data(ERR_LIB_SYS, errno,
1697 "calling fstat(%s)", dbfile);
1698 goto err;
1699 }
1700#endif
1701
1702 if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
1703 goto err;
1704
1705#ifndef OPENSSL_SYS_VMS
1706 BIO_snprintf(buf, sizeof(buf), "%s.attr", dbfile);
1707#else
1708 BIO_snprintf(buf, sizeof(buf), "%s-attr", dbfile);
1709#endif
1710 dbattr_conf = app_load_config_quiet(buf);
1711
1712 retdb = app_malloc(sizeof(*retdb), "new DB");
1713 retdb->db = tmpdb;
1714 tmpdb = NULL;
1715 if (db_attr)
1716 retdb->attributes = *db_attr;
1717 else
1718 retdb->attributes.unique_subject = 1;
1719
1720 if (dbattr_conf != NULL) {
1721 char *p = app_conf_try_string(dbattr_conf, NULL, "unique_subject");
1722
1723 if (p != NULL)
1724 retdb->attributes.unique_subject = parse_yesno(p, 1);
1725 }
1726
1727 retdb->dbfname = OPENSSL_strdup(dbfile);
1728 if (retdb->dbfname == NULL)
1729 goto err;
1730
1731#ifndef OPENSSL_NO_POSIX_IO
1732 retdb->dbst = dbst;
1733#endif
1734
1735 err:
1736 ERR_print_errors(bio_err);
1737 NCONF_free(dbattr_conf);
1738 TXT_DB_free(tmpdb);
1739 BIO_free_all(in);
1740 return retdb;
1741}
1742
1743/*
1744 * Returns > 0 on success, <= 0 on error
1745 */
1746int index_index(CA_DB *db)
1747{
1748 if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1749 LHASH_HASH_FN(index_serial),
1750 LHASH_COMP_FN(index_serial))) {
1751 BIO_printf(bio_err,
1752 "Error creating serial number index:(%ld,%ld,%ld)\n",
1753 db->db->error, db->db->arg1, db->db->arg2);
1754 goto err;
1755 }
1756
1757 if (db->attributes.unique_subject
1758 && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1759 LHASH_HASH_FN(index_name),
1760 LHASH_COMP_FN(index_name))) {
1761 BIO_printf(bio_err, "Error creating name index:(%ld,%ld,%ld)\n",
1762 db->db->error, db->db->arg1, db->db->arg2);
1763 goto err;
1764 }
1765 return 1;
1766 err:
1767 ERR_print_errors(bio_err);
1768 return 0;
1769}
1770
1771int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1772{
1773 char buf[3][BSIZE];
1774 BIO *out;
1775 int j;
1776
1777 j = (int)(strlen(dbfile) + strlen(suffix));
1778 if (j + 6 >= BSIZE) {
1779 BIO_printf(bio_err, "File name too long\n");
1780 goto err;
1781 }
1782#ifndef OPENSSL_SYS_VMS
1783 BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr", dbfile);
1784 BIO_snprintf(buf[1], sizeof(buf[1]), "%s.attr.%s", dbfile, suffix);
1785 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, suffix);
1786#else
1787 BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr", dbfile);
1788 BIO_snprintf(buf[1], sizeof(buf[1]), "%s-attr-%s", dbfile, suffix);
1789 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, suffix);
1790#endif
1791 out = BIO_new_file(buf[0], "w");
1792 if (out == NULL) {
1793 perror(dbfile);
1794 BIO_printf(bio_err, "Unable to open '%s'\n", dbfile);
1795 goto err;
1796 }
1797 j = TXT_DB_write(out, db->db);
1798 BIO_free(out);
1799 if (j <= 0)
1800 goto err;
1801
1802 out = BIO_new_file(buf[1], "w");
1803 if (out == NULL) {
1804 perror(buf[2]);
1805 BIO_printf(bio_err, "Unable to open '%s'\n", buf[2]);
1806 goto err;
1807 }
1808 BIO_printf(out, "unique_subject = %s\n",
1809 db->attributes.unique_subject ? "yes" : "no");
1810 BIO_free(out);
1811
1812 return 1;
1813 err:
1814 ERR_print_errors(bio_err);
1815 return 0;
1816}
1817
1818int rotate_index(const char *dbfile, const char *new_suffix,
1819 const char *old_suffix)
1820{
1821 char buf[5][BSIZE];
1822 size_t i, j;
1823
1824 i = strlen(dbfile) + strlen(old_suffix);
1825 j = strlen(dbfile) + strlen(new_suffix);
1826 if (i > j)
1827 j = i;
1828 if (j + 6 >= BSIZE) {
1829 BIO_printf(bio_err, "File name too long\n");
1830 goto err;
1831 }
1832#ifndef OPENSSL_SYS_VMS
1833 BIO_snprintf(buf[4], sizeof(buf[4]), "%s.attr", dbfile);
1834 BIO_snprintf(buf[3], sizeof(buf[3]), "%s.attr.%s", dbfile, old_suffix);
1835 BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr.%s", dbfile, new_suffix);
1836 BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", dbfile, old_suffix);
1837 BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, new_suffix);
1838#else
1839 BIO_snprintf(buf[4], sizeof(buf[4]), "%s-attr", dbfile);
1840 BIO_snprintf(buf[3], sizeof(buf[3]), "%s-attr-%s", dbfile, old_suffix);
1841 BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr-%s", dbfile, new_suffix);
1842 BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", dbfile, old_suffix);
1843 BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, new_suffix);
1844#endif
1845 if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
1846#ifdef ENOTDIR
1847 && errno != ENOTDIR
1848#endif
1849 ) {
1850 BIO_printf(bio_err, "Unable to rename %s to %s\n", dbfile, buf[1]);
1851 perror("reason");
1852 goto err;
1853 }
1854 if (rename(buf[0], dbfile) < 0) {
1855 BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[0], dbfile);
1856 perror("reason");
1857 rename(buf[1], dbfile);
1858 goto err;
1859 }
1860 if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
1861#ifdef ENOTDIR
1862 && errno != ENOTDIR
1863#endif
1864 ) {
1865 BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[4], buf[3]);
1866 perror("reason");
1867 rename(dbfile, buf[0]);
1868 rename(buf[1], dbfile);
1869 goto err;
1870 }
1871 if (rename(buf[2], buf[4]) < 0) {
1872 BIO_printf(bio_err, "Unable to rename %s to %s\n", buf[2], buf[4]);
1873 perror("reason");
1874 rename(buf[3], buf[4]);
1875 rename(dbfile, buf[0]);
1876 rename(buf[1], dbfile);
1877 goto err;
1878 }
1879 return 1;
1880 err:
1881 ERR_print_errors(bio_err);
1882 return 0;
1883}
1884
1885void free_index(CA_DB *db)
1886{
1887 if (db) {
1888 TXT_DB_free(db->db);
1889 OPENSSL_free(db->dbfname);
1890 OPENSSL_free(db);
1891 }
1892}
1893
1894int parse_yesno(const char *str, int def)
1895{
1896 if (str) {
1897 switch (*str) {
1898 case 'f': /* false */
1899 case 'F': /* FALSE */
1900 case 'n': /* no */
1901 case 'N': /* NO */
1902 case '0': /* 0 */
1903 return 0;
1904 case 't': /* true */
1905 case 'T': /* TRUE */
1906 case 'y': /* yes */
1907 case 'Y': /* YES */
1908 case '1': /* 1 */
1909 return 1;
1910 }
1911 }
1912 return def;
1913}
1914
1915/*
1916 * name is expected to be in the format /type0=value0/type1=value1/type2=...
1917 * where + can be used instead of / to form multi-valued RDNs if canmulti
1918 * and characters may be escaped by \
1919 */
1920X509_NAME *parse_name(const char *cp, int chtype, int canmulti,
1921 const char *desc)
1922{
1923 int nextismulti = 0;
1924 char *work;
1925 X509_NAME *n;
1926
1927 if (*cp++ != '/') {
1928 BIO_printf(bio_err,
1929 "%s: %s name is expected to be in the format "
1930 "/type0=value0/type1=value1/type2=... where characters may "
1931 "be escaped by \\. This name is not in that format: '%s'\n",
1932 opt_getprog(), desc, --cp);
1933 return NULL;
1934 }
1935
1936 n = X509_NAME_new();
1937 if (n == NULL) {
1938 BIO_printf(bio_err, "%s: Out of memory\n", opt_getprog());
1939 return NULL;
1940 }
1941 work = OPENSSL_strdup(cp);
1942 if (work == NULL) {
1943 BIO_printf(bio_err, "%s: Error copying %s name input\n",
1944 opt_getprog(), desc);
1945 goto err;
1946 }
1947
1948 while (*cp != '\0') {
1949 char *bp = work;
1950 char *typestr = bp;
1951 unsigned char *valstr;
1952 int nid;
1953 int ismulti = nextismulti;
1954
1955 nextismulti = 0;
1956
1957 /* Collect the type */
1958 while (*cp != '\0' && *cp != '=')
1959 *bp++ = *cp++;
1960 *bp++ = '\0';
1961 if (*cp == '\0') {
1962 BIO_printf(bio_err,
1963 "%s: Missing '=' after RDN type string '%s' in %s name string\n",
1964 opt_getprog(), typestr, desc);
1965 goto err;
1966 }
1967 ++cp;
1968
1969 /* Collect the value. */
1970 valstr = (unsigned char *)bp;
1971 for (; *cp != '\0' && *cp != '/'; *bp++ = *cp++) {
1972 /* unescaped '+' symbol string signals further member of multiRDN */
1973 if (canmulti && *cp == '+') {
1974 nextismulti = 1;
1975 break;
1976 }
1977 if (*cp == '\\' && *++cp == '\0') {
1978 BIO_printf(bio_err,
1979 "%s: Escape character at end of %s name string\n",
1980 opt_getprog(), desc);
1981 goto err;
1982 }
1983 }
1984 *bp++ = '\0';
1985
1986 /* If not at EOS (must be + or /), move forward. */
1987 if (*cp != '\0')
1988 ++cp;
1989
1990 /* Parse */
1991 nid = OBJ_txt2nid(typestr);
1992 if (nid == NID_undef) {
1993 BIO_printf(bio_err,
1994 "%s warning: Skipping unknown %s name attribute \"%s\"\n",
1995 opt_getprog(), desc, typestr);
1996 if (ismulti)
1997 BIO_printf(bio_err,
1998 "%s hint: a '+' in a value string needs be escaped using '\\' else a new member of a multi-valued RDN is expected\n",
1999 opt_getprog());
2000 continue;
2001 }
2002 if (*valstr == '\0') {
2003 BIO_printf(bio_err,
2004 "%s warning: No value provided for %s name attribute \"%s\", skipped\n",
2005 opt_getprog(), desc, typestr);
2006 continue;
2007 }
2008 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
2009 valstr, (int)strlen((char *)valstr),
2010 -1, ismulti ? -1 : 0)) {
2011 ERR_print_errors(bio_err);
2012 BIO_printf(bio_err,
2013 "%s: Error adding %s name attribute \"/%s=%s\"\n",
2014 opt_getprog(), desc, typestr, valstr);
2015 goto err;
2016 }
2017 }
2018
2019 OPENSSL_free(work);
2020 return n;
2021
2022 err:
2023 X509_NAME_free(n);
2024 OPENSSL_free(work);
2025 return NULL;
2026}
2027
2028/*
2029 * Read whole contents of a BIO into an allocated memory buffer and return
2030 * it.
2031 */
2032
2033int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
2034{
2035 BIO *mem;
2036 int len, ret;
2037 unsigned char tbuf[1024];
2038
2039 mem = BIO_new(BIO_s_mem());
2040 if (mem == NULL)
2041 return -1;
2042 for (;;) {
2043 if ((maxlen != -1) && maxlen < 1024)
2044 len = maxlen;
2045 else
2046 len = 1024;
2047 len = BIO_read(in, tbuf, len);
2048 if (len < 0) {
2049 BIO_free(mem);
2050 return -1;
2051 }
2052 if (len == 0)
2053 break;
2054 if (BIO_write(mem, tbuf, len) != len) {
2055 BIO_free(mem);
2056 return -1;
2057 }
2058 if (maxlen != -1)
2059 maxlen -= len;
2060
2061 if (maxlen == 0)
2062 break;
2063 }
2064 ret = BIO_get_mem_data(mem, (char **)out);
2065 BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
2066 BIO_free(mem);
2067 return ret;
2068}
2069
2070int pkey_ctrl_string(EVP_PKEY_CTX *ctx, const char *value)
2071{
2072 int rv = 0;
2073 char *stmp, *vtmp = NULL;
2074
2075 stmp = OPENSSL_strdup(value);
2076 if (stmp == NULL)
2077 return -1;
2078 vtmp = strchr(stmp, ':');
2079 if (vtmp == NULL)
2080 goto err;
2081
2082 *vtmp = 0;
2083 vtmp++;
2084 rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
2085
2086 err:
2087 OPENSSL_free(stmp);
2088 return rv;
2089}
2090
2091static void nodes_print(const char *name, STACK_OF(X509_POLICY_NODE) *nodes)
2092{
2093 X509_POLICY_NODE *node;
2094 int i;
2095
2096 BIO_printf(bio_err, "%s Policies:", name);
2097 if (nodes) {
2098 BIO_puts(bio_err, "\n");
2099 for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2100 node = sk_X509_POLICY_NODE_value(nodes, i);
2101 X509_POLICY_NODE_print(bio_err, node, 2);
2102 }
2103 } else {
2104 BIO_puts(bio_err, " <empty>\n");
2105 }
2106}
2107
2108void policies_print(X509_STORE_CTX *ctx)
2109{
2110 X509_POLICY_TREE *tree;
2111 int explicit_policy;
2112
2113 tree = X509_STORE_CTX_get0_policy_tree(ctx);
2114 explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2115
2116 BIO_printf(bio_err, "Require explicit Policy: %s\n",
2117 explicit_policy ? "True" : "False");
2118
2119 nodes_print("Authority", X509_policy_tree_get0_policies(tree));
2120 nodes_print("User", X509_policy_tree_get0_user_policies(tree));
2121}
2122
2123/*-
2124 * next_protos_parse parses a comma separated list of strings into a string
2125 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
2126 * outlen: (output) set to the length of the resulting buffer on success.
2127 * err: (maybe NULL) on failure, an error message line is written to this BIO.
2128 * in: a NUL terminated string like "abc,def,ghi"
2129 *
2130 * returns: a malloc'd buffer or NULL on failure.
2131 */
2132unsigned char *next_protos_parse(size_t *outlen, const char *in)
2133{
2134 size_t len;
2135 unsigned char *out;
2136 size_t i, start = 0;
2137 size_t skipped = 0;
2138
2139 len = strlen(in);
2140 if (len == 0 || len >= 65535)
2141 return NULL;
2142
2143 out = app_malloc(len + 1, "NPN buffer");
2144 for (i = 0; i <= len; ++i) {
2145 if (i == len || in[i] == ',') {
2146 /*
2147 * Zero-length ALPN elements are invalid on the wire, we could be
2148 * strict and reject the entire string, but just ignoring extra
2149 * commas seems harmless and more friendly.
2150 *
2151 * Every comma we skip in this way puts the input buffer another
2152 * byte ahead of the output buffer, so all stores into the output
2153 * buffer need to be decremented by the number commas skipped.
2154 */
2155 if (i == start) {
2156 ++start;
2157 ++skipped;
2158 continue;
2159 }
2160 if (i - start > 255) {
2161 OPENSSL_free(out);
2162 return NULL;
2163 }
2164 out[start - skipped] = (unsigned char)(i - start);
2165 start = i + 1;
2166 } else {
2167 out[i + 1 - skipped] = in[i];
2168 }
2169 }
2170
2171 if (len <= skipped) {
2172 OPENSSL_free(out);
2173 return NULL;
2174 }
2175
2176 *outlen = len + 1 - skipped;
2177 return out;
2178}
2179
2180int check_cert_attributes(BIO *bio, X509 *x, const char *checkhost,
2181 const char *checkemail, const char *checkip,
2182 int print)
2183{
2184 int valid_host = 0;
2185 int valid_mail = 0;
2186 int valid_ip = 0;
2187 int ret = 1;
2188
2189 if (x == NULL)
2190 return 0;
2191
2192 if (checkhost != NULL) {
2193 valid_host = X509_check_host(x, checkhost, 0, 0, NULL);
2194 if (print)
2195 BIO_printf(bio, "Hostname %s does%s match certificate\n",
2196 checkhost, valid_host == 1 ? "" : " NOT");
2197 ret = ret && valid_host > 0;
2198 }
2199
2200 if (checkemail != NULL) {
2201 valid_mail = X509_check_email(x, checkemail, 0, 0);
2202 if (print)
2203 BIO_printf(bio, "Email %s does%s match certificate\n",
2204 checkemail, valid_mail ? "" : " NOT");
2205 ret = ret && valid_mail > 0;
2206 }
2207
2208 if (checkip != NULL) {
2209 valid_ip = X509_check_ip_asc(x, checkip, 0);
2210 if (print)
2211 BIO_printf(bio, "IP %s does%s match certificate\n",
2212 checkip, valid_ip ? "" : " NOT");
2213 ret = ret && valid_ip > 0;
2214 }
2215
2216 return ret;
2217}
2218
2219static int do_pkey_ctx_init(EVP_PKEY_CTX *pkctx, STACK_OF(OPENSSL_STRING) *opts)
2220{
2221 int i;
2222
2223 if (opts == NULL)
2224 return 1;
2225
2226 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
2227 char *opt = sk_OPENSSL_STRING_value(opts, i);
2228
2229 if (pkey_ctrl_string(pkctx, opt) <= 0) {
2230 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
2231 ERR_print_errors(bio_err);
2232 return 0;
2233 }
2234 }
2235
2236 return 1;
2237}
2238
2239static int do_x509_init(X509 *x, STACK_OF(OPENSSL_STRING) *opts)
2240{
2241 int i;
2242
2243 if (opts == NULL)
2244 return 1;
2245
2246 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
2247 char *opt = sk_OPENSSL_STRING_value(opts, i);
2248
2249 if (x509_ctrl_string(x, opt) <= 0) {
2250 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
2251 ERR_print_errors(bio_err);
2252 return 0;
2253 }
2254 }
2255
2256 return 1;
2257}
2258
2259static int do_x509_req_init(X509_REQ *x, STACK_OF(OPENSSL_STRING) *opts)
2260{
2261 int i;
2262
2263 if (opts == NULL)
2264 return 1;
2265
2266 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
2267 char *opt = sk_OPENSSL_STRING_value(opts, i);
2268
2269 if (x509_req_ctrl_string(x, opt) <= 0) {
2270 BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
2271 ERR_print_errors(bio_err);
2272 return 0;
2273 }
2274 }
2275
2276 return 1;
2277}
2278
2279static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
2280 const char *md, STACK_OF(OPENSSL_STRING) *sigopts)
2281{
2282 EVP_PKEY_CTX *pkctx = NULL;
2283 char def_md[80];
2284
2285 if (ctx == NULL)
2286 return 0;
2287 /*
2288 * EVP_PKEY_get_default_digest_name() returns 2 if the digest is mandatory
2289 * for this algorithm.
2290 */
2291 if (EVP_PKEY_get_default_digest_name(pkey, def_md, sizeof(def_md)) == 2
2292 && strcmp(def_md, "UNDEF") == 0) {
2293 /* The signing algorithm requires there to be no digest */
2294 md = NULL;
2295 }
2296
2297 return EVP_DigestSignInit_ex(ctx, &pkctx, md, app_get0_libctx(),
2298 app_get0_propq(), pkey, NULL)
2299 && do_pkey_ctx_init(pkctx, sigopts);
2300}
2301
2302static int adapt_keyid_ext(X509 *cert, X509V3_CTX *ext_ctx,
2303 const char *name, const char *value, int add_default)
2304{
2305 const STACK_OF(X509_EXTENSION) *exts = X509_get0_extensions(cert);
2306 X509_EXTENSION *new_ext = X509V3_EXT_nconf(NULL, ext_ctx, name, value);
2307 int idx, rv = 0;
2308
2309 if (new_ext == NULL)
2310 return rv;
2311
2312 idx = X509v3_get_ext_by_OBJ(exts, X509_EXTENSION_get_object(new_ext), -1);
2313 if (idx >= 0) {
2314 X509_EXTENSION *found_ext = X509v3_get_ext(exts, idx);
2315 ASN1_OCTET_STRING *encoded = X509_EXTENSION_get_data(found_ext);
2316 int disabled = ASN1_STRING_length(encoded) <= 2; /* indicating "none" */
2317
2318 if (disabled) {
2319 X509_delete_ext(cert, idx);
2320 X509_EXTENSION_free(found_ext);
2321 } /* else keep existing key identifier, which might be outdated */
2322 rv = 1;
2323 } else {
2324 rv = !add_default || X509_add_ext(cert, new_ext, -1);
2325 }
2326 X509_EXTENSION_free(new_ext);
2327 return rv;
2328}
2329
2330int cert_matches_key(const X509 *cert, const EVP_PKEY *pkey)
2331{
2332 int match;
2333
2334 ERR_set_mark();
2335 match = X509_check_private_key(cert, pkey);
2336 ERR_pop_to_mark();
2337 return match;
2338}
2339
2340/* Ensure RFC 5280 compliance, adapt keyIDs as needed, and sign the cert info */
2341int do_X509_sign(X509 *cert, int force_v1, EVP_PKEY *pkey, const char *md,
2342 STACK_OF(OPENSSL_STRING) *sigopts, X509V3_CTX *ext_ctx)
2343{
2344 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
2345 int self_sign;
2346 int rv = 0;
2347
2348 if (!force_v1) {
2349 if (!X509_set_version(cert, X509_VERSION_3))
2350 goto end;
2351
2352 /*
2353 * Add default SKID before AKID such that AKID can make use of it
2354 * in case the certificate is self-signed
2355 */
2356 /* Prevent X509_V_ERR_MISSING_SUBJECT_KEY_IDENTIFIER */
2357 if (!adapt_keyid_ext(cert, ext_ctx, "subjectKeyIdentifier", "hash", 1))
2358 goto end;
2359 /* Prevent X509_V_ERR_MISSING_AUTHORITY_KEY_IDENTIFIER */
2360 self_sign = cert_matches_key(cert, pkey);
2361 if (!adapt_keyid_ext(cert, ext_ctx, "authorityKeyIdentifier",
2362 "keyid, issuer", !self_sign))
2363 goto end;
2364 }
2365 /* May add further measures for ensuring RFC 5280 compliance, see #19805 */
2366
2367 if (mctx != NULL && do_sign_init(mctx, pkey, md, sigopts) > 0)
2368 rv = (X509_sign_ctx(cert, mctx) > 0);
2369 end:
2370 EVP_MD_CTX_free(mctx);
2371 return rv;
2372}
2373
2374/* Sign the certificate request info */
2375int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const char *md,
2376 STACK_OF(OPENSSL_STRING) *sigopts)
2377{
2378 int rv = 0;
2379 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
2380
2381 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
2382 rv = (X509_REQ_sign_ctx(x, mctx) > 0);
2383 EVP_MD_CTX_free(mctx);
2384 return rv;
2385}
2386
2387/* Sign the CRL info */
2388int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const char *md,
2389 STACK_OF(OPENSSL_STRING) *sigopts)
2390{
2391 int rv = 0;
2392 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
2393
2394 if (do_sign_init(mctx, pkey, md, sigopts) > 0)
2395 rv = (X509_CRL_sign_ctx(x, mctx) > 0);
2396 EVP_MD_CTX_free(mctx);
2397 return rv;
2398}
2399
2400/*
2401 * do_X509_verify returns 1 if the signature is valid,
2402 * 0 if the signature check fails, or -1 if error occurs.
2403 */
2404int do_X509_verify(X509 *x, EVP_PKEY *pkey, STACK_OF(OPENSSL_STRING) *vfyopts)
2405{
2406 int rv = 0;
2407
2408 if (do_x509_init(x, vfyopts) > 0)
2409 rv = X509_verify(x, pkey);
2410 else
2411 rv = -1;
2412 return rv;
2413}
2414
2415/*
2416 * do_X509_REQ_verify returns 1 if the signature is valid,
2417 * 0 if the signature check fails, or -1 if error occurs.
2418 */
2419int do_X509_REQ_verify(X509_REQ *x, EVP_PKEY *pkey,
2420 STACK_OF(OPENSSL_STRING) *vfyopts)
2421{
2422 int rv = 0;
2423
2424 if (do_x509_req_init(x, vfyopts) > 0)
2425 rv = X509_REQ_verify_ex(x, pkey, app_get0_libctx(), app_get0_propq());
2426 else
2427 rv = -1;
2428 return rv;
2429}
2430
2431/* Get first http URL from a DIST_POINT structure */
2432
2433static const char *get_dp_url(DIST_POINT *dp)
2434{
2435 GENERAL_NAMES *gens;
2436 GENERAL_NAME *gen;
2437 int i, gtype;
2438 ASN1_STRING *uri;
2439
2440 if (!dp->distpoint || dp->distpoint->type != 0)
2441 return NULL;
2442 gens = dp->distpoint->name.fullname;
2443 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
2444 gen = sk_GENERAL_NAME_value(gens, i);
2445 uri = GENERAL_NAME_get0_value(gen, &gtype);
2446 if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
2447 const char *uptr = (const char *)ASN1_STRING_get0_data(uri);
2448
2449 if (IS_HTTP(uptr)) /* can/should not use HTTPS here */
2450 return uptr;
2451 }
2452 }
2453 return NULL;
2454}
2455
2456/*
2457 * Look through a CRLDP structure and attempt to find an http URL to
2458 * downloads a CRL from.
2459 */
2460
2461static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
2462{
2463 int i;
2464 const char *urlptr = NULL;
2465
2466 for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
2467 DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
2468
2469 urlptr = get_dp_url(dp);
2470 if (urlptr != NULL)
2471 return load_crl(urlptr, FORMAT_UNDEF, 0, "CRL via CDP");
2472 }
2473 return NULL;
2474}
2475
2476/*
2477 * Example of downloading CRLs from CRLDP:
2478 * not usable for real world as it always downloads and doesn't cache anything.
2479 */
2480
2481static STACK_OF(X509_CRL) *crls_http_cb(const X509_STORE_CTX *ctx,
2482 const X509_NAME *nm)
2483{
2484 X509 *x;
2485 STACK_OF(X509_CRL) *crls = NULL;
2486 X509_CRL *crl;
2487 STACK_OF(DIST_POINT) *crldp;
2488
2489 crls = sk_X509_CRL_new_null();
2490 if (!crls)
2491 return NULL;
2492 x = X509_STORE_CTX_get_current_cert(ctx);
2493 crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
2494 crl = load_crl_crldp(crldp);
2495 sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2496
2497 if (crl == NULL || !sk_X509_CRL_push(crls, crl))
2498 goto error;
2499
2500 /* Try to download delta CRL */
2501 crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
2502 crl = load_crl_crldp(crldp);
2503 sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2504
2505 if (crl != NULL && !sk_X509_CRL_push(crls, crl))
2506 goto error;
2507
2508 return crls;
2509
2510error:
2511 X509_CRL_free(crl);
2512 sk_X509_CRL_free(crls);
2513 return NULL;
2514}
2515
2516void store_setup_crl_download(X509_STORE *st)
2517{
2518 X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
2519}
2520
2521#if !defined(OPENSSL_NO_SOCK) && !defined(OPENSSL_NO_HTTP)
2522static const char *tls_error_hint(void)
2523{
2524 unsigned long err = ERR_peek_error();
2525
2526 if (ERR_GET_LIB(err) != ERR_LIB_SSL)
2527 err = ERR_peek_last_error();
2528 if (ERR_GET_LIB(err) != ERR_LIB_SSL)
2529 return NULL; /* likely no TLS error */
2530
2531 switch (ERR_GET_REASON(err)) {
2532 case SSL_R_WRONG_VERSION_NUMBER:
2533 return "The server does not support (a suitable version of) TLS";
2534 case SSL_R_UNKNOWN_PROTOCOL:
2535 return "The server does not support HTTPS";
2536 case SSL_R_CERTIFICATE_VERIFY_FAILED:
2537 return "Cannot authenticate server via its TLS certificate, likely due to mismatch with our trusted TLS certs or missing revocation status";
2538 case SSL_AD_REASON_OFFSET + TLS1_AD_UNKNOWN_CA:
2539 return "Server did not accept our TLS certificate, likely due to mismatch with server's trust anchor or missing revocation status";
2540 case SSL_AD_REASON_OFFSET + SSL3_AD_HANDSHAKE_FAILURE:
2541 return "TLS handshake failure. Possibly the server requires our TLS certificate but did not receive it";
2542 default:
2543 return NULL; /* no hint available for TLS error */
2544 }
2545}
2546
2547static BIO *http_tls_shutdown(BIO *bio)
2548{
2549 if (bio != NULL) {
2550 BIO *cbio;
2551 const char *hint = tls_error_hint();
2552
2553 if (hint != NULL)
2554 BIO_printf(bio_err, "%s\n", hint);
2555 (void)ERR_set_mark();
2556 BIO_ssl_shutdown(bio);
2557 cbio = BIO_pop(bio); /* connect+HTTP BIO */
2558 BIO_free(bio); /* SSL BIO */
2559 (void)ERR_pop_to_mark(); /* hide SSL_R_READ_BIO_NOT_SET etc. */
2560 bio = cbio;
2561 }
2562 return bio;
2563}
2564
2565/* HTTP callback function that supports TLS connection also via HTTPS proxy */
2566BIO *app_http_tls_cb(BIO *bio, void *arg, int connect, int detail)
2567{
2568 APP_HTTP_TLS_INFO *info = (APP_HTTP_TLS_INFO *)arg;
2569 SSL_CTX *ssl_ctx = info->ssl_ctx;
2570
2571 if (ssl_ctx == NULL) /* not using TLS */
2572 return bio;
2573 if (connect) {
2574 SSL *ssl;
2575 BIO *sbio = NULL;
2576 X509_STORE *ts = SSL_CTX_get_cert_store(ssl_ctx);
2577 X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
2578 const char *host = vpm == NULL ? NULL :
2579 X509_VERIFY_PARAM_get0_host(vpm, 0 /* first hostname */);
2580
2581 /* adapt after fixing callback design flaw, see #17088 */
2582 if ((info->use_proxy
2583 && !OSSL_HTTP_proxy_connect(bio, info->server, info->port,
2584 NULL, NULL, /* no proxy credentials */
2585 info->timeout, bio_err, opt_getprog()))
2586 || (sbio = BIO_new(BIO_f_ssl())) == NULL) {
2587 return NULL;
2588 }
2589 if ((ssl = SSL_new(ssl_ctx)) == NULL) {
2590 BIO_free(sbio);
2591 return NULL;
2592 }
2593
2594 if (vpm != NULL)
2595 SSL_set_tlsext_host_name(ssl, host /* may be NULL */);
2596
2597 SSL_set_connect_state(ssl);
2598 BIO_set_ssl(sbio, ssl, BIO_CLOSE);
2599
2600 bio = BIO_push(sbio, bio);
2601 } else { /* disconnect from TLS */
2602 bio = http_tls_shutdown(bio);
2603 }
2604 return bio;
2605}
2606
2607void APP_HTTP_TLS_INFO_free(APP_HTTP_TLS_INFO *info)
2608{
2609 if (info != NULL) {
2610 SSL_CTX_free(info->ssl_ctx);
2611 OPENSSL_free(info);
2612 }
2613}
2614
2615ASN1_VALUE *app_http_get_asn1(const char *url, const char *proxy,
2616 const char *no_proxy, SSL_CTX *ssl_ctx,
2617 const STACK_OF(CONF_VALUE) *headers,
2618 long timeout, const char *expected_content_type,
2619 const ASN1_ITEM *it)
2620{
2621 APP_HTTP_TLS_INFO info;
2622 char *server;
2623 char *port;
2624 int use_ssl;
2625 BIO *mem;
2626 ASN1_VALUE *resp = NULL;
2627
2628 if (url == NULL || it == NULL) {
2629 ERR_raise(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER);
2630 return NULL;
2631 }
2632
2633 if (!OSSL_HTTP_parse_url(url, &use_ssl, NULL /* userinfo */, &server, &port,
2634 NULL /* port_num, */, NULL, NULL, NULL))
2635 return NULL;
2636 if (use_ssl && ssl_ctx == NULL) {
2637 ERR_raise_data(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER,
2638 "missing SSL_CTX");
2639 goto end;
2640 }
2641 if (!use_ssl && ssl_ctx != NULL) {
2642 ERR_raise_data(ERR_LIB_HTTP, ERR_R_PASSED_INVALID_ARGUMENT,
2643 "SSL_CTX given but use_ssl == 0");
2644 goto end;
2645 }
2646
2647 info.server = server;
2648 info.port = port;
2649 info.use_proxy = /* workaround for callback design flaw, see #17088 */
2650 OSSL_HTTP_adapt_proxy(proxy, no_proxy, server, use_ssl) != NULL;
2651 info.timeout = timeout;
2652 info.ssl_ctx = ssl_ctx;
2653 mem = OSSL_HTTP_get(url, proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
2654 app_http_tls_cb, &info, 0 /* buf_size */, headers,
2655 expected_content_type, 1 /* expect_asn1 */,
2656 OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout);
2657 resp = ASN1_item_d2i_bio(it, mem, NULL);
2658 BIO_free(mem);
2659
2660 end:
2661 OPENSSL_free(server);
2662 OPENSSL_free(port);
2663 return resp;
2664
2665}
2666
2667ASN1_VALUE *app_http_post_asn1(const char *host, const char *port,
2668 const char *path, const char *proxy,
2669 const char *no_proxy, SSL_CTX *ssl_ctx,
2670 const STACK_OF(CONF_VALUE) *headers,
2671 const char *content_type,
2672 ASN1_VALUE *req, const ASN1_ITEM *req_it,
2673 const char *expected_content_type,
2674 long timeout, const ASN1_ITEM *rsp_it)
2675{
2676 int use_ssl = ssl_ctx != NULL;
2677 APP_HTTP_TLS_INFO info;
2678 BIO *rsp, *req_mem = ASN1_item_i2d_mem_bio(req_it, req);
2679 ASN1_VALUE *res;
2680
2681 if (req_mem == NULL)
2682 return NULL;
2683
2684 info.server = host;
2685 info.port = port;
2686 info.use_proxy = /* workaround for callback design flaw, see #17088 */
2687 OSSL_HTTP_adapt_proxy(proxy, no_proxy, host, use_ssl) != NULL;
2688 info.timeout = timeout;
2689 info.ssl_ctx = ssl_ctx;
2690 rsp = OSSL_HTTP_transfer(NULL, host, port, path, use_ssl,
2691 proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
2692 app_http_tls_cb, &info,
2693 0 /* buf_size */, headers, content_type, req_mem,
2694 expected_content_type, 1 /* expect_asn1 */,
2695 OSSL_HTTP_DEFAULT_MAX_RESP_LEN, timeout,
2696 0 /* keep_alive */);
2697 BIO_free(req_mem);
2698 res = ASN1_item_d2i_bio(rsp_it, rsp, NULL);
2699 BIO_free(rsp);
2700 return res;
2701}
2702
2703#endif
2704
2705/*
2706 * Platform-specific sections
2707 */
2708#if defined(_WIN32)
2709# ifdef fileno
2710# undef fileno
2711# define fileno(a) (int)_fileno(a)
2712# endif
2713
2714# include <windows.h>
2715# include <tchar.h>
2716
2717static int WIN32_rename(const char *from, const char *to)
2718{
2719 TCHAR *tfrom = NULL, *tto;
2720 DWORD err;
2721 int ret = 0;
2722
2723 if (sizeof(TCHAR) == 1) {
2724 tfrom = (TCHAR *)from;
2725 tto = (TCHAR *)to;
2726 } else { /* UNICODE path */
2727 size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
2728
2729 tfrom = malloc(sizeof(*tfrom) * (flen + tlen));
2730 if (tfrom == NULL)
2731 goto err;
2732 tto = tfrom + flen;
2733# if !defined(_WIN32_WCE) || _WIN32_WCE >= 101
2734 if (!MultiByteToWideChar(CP_ACP, 0, from, (int)flen, (WCHAR *)tfrom, (int)flen))
2735# endif
2736 for (i = 0; i < flen; i++)
2737 tfrom[i] = (TCHAR)from[i];
2738# if !defined(_WIN32_WCE) || _WIN32_WCE >= 101
2739 if (!MultiByteToWideChar(CP_ACP, 0, to, (int)tlen, (WCHAR *)tto, (int)tlen))
2740# endif
2741 for (i = 0; i < tlen; i++)
2742 tto[i] = (TCHAR)to[i];
2743 }
2744
2745 if (MoveFile(tfrom, tto))
2746 goto ok;
2747 err = GetLastError();
2748 if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
2749 if (DeleteFile(tto) && MoveFile(tfrom, tto))
2750 goto ok;
2751 err = GetLastError();
2752 }
2753 if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
2754 errno = ENOENT;
2755 else if (err == ERROR_ACCESS_DENIED)
2756 errno = EACCES;
2757 else
2758 errno = EINVAL; /* we could map more codes... */
2759 err:
2760 ret = -1;
2761 ok:
2762 if (tfrom != NULL && tfrom != (TCHAR *)from)
2763 free(tfrom);
2764 return ret;
2765}
2766#endif
2767
2768/* app_tminterval section */
2769#if defined(_WIN32)
2770double app_tminterval(int stop, int usertime)
2771{
2772 FILETIME now;
2773 double ret = 0;
2774 static ULARGE_INTEGER tmstart;
2775 static int warning = 1;
2776 int use_GetSystemTime = 1;
2777# ifdef _WIN32_WINNT
2778 static HANDLE proc = NULL;
2779
2780 if (proc == NULL) {
2781 if (check_winnt())
2782 proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
2783 GetCurrentProcessId());
2784 if (proc == NULL)
2785 proc = (HANDLE) - 1;
2786 }
2787
2788 if (usertime && proc != (HANDLE) - 1) {
2789 FILETIME junk;
2790
2791 GetProcessTimes(proc, &junk, &junk, &junk, &now);
2792 use_GetSystemTime = 0;
2793 }
2794# endif
2795 if (use_GetSystemTime) {
2796 SYSTEMTIME systime;
2797
2798 if (usertime && warning) {
2799 BIO_printf(bio_err, "To get meaningful results, run "
2800 "this program on idle system.\n");
2801 warning = 0;
2802 }
2803 GetSystemTime(&systime);
2804 SystemTimeToFileTime(&systime, &now);
2805 }
2806
2807 if (stop == TM_START) {
2808 tmstart.u.LowPart = now.dwLowDateTime;
2809 tmstart.u.HighPart = now.dwHighDateTime;
2810 } else {
2811 ULARGE_INTEGER tmstop;
2812
2813 tmstop.u.LowPart = now.dwLowDateTime;
2814 tmstop.u.HighPart = now.dwHighDateTime;
2815
2816 ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
2817 }
2818
2819 return ret;
2820}
2821#elif defined(OPENSSL_SYS_VXWORKS)
2822# include <time.h>
2823
2824double app_tminterval(int stop, int usertime)
2825{
2826 double ret = 0;
2827# ifdef CLOCK_REALTIME
2828 static struct timespec tmstart;
2829 struct timespec now;
2830# else
2831 static unsigned long tmstart;
2832 unsigned long now;
2833# endif
2834 static int warning = 1;
2835
2836 if (usertime && warning) {
2837 BIO_printf(bio_err, "To get meaningful results, run "
2838 "this program on idle system.\n");
2839 warning = 0;
2840 }
2841# ifdef CLOCK_REALTIME
2842 clock_gettime(CLOCK_REALTIME, &now);
2843 if (stop == TM_START)
2844 tmstart = now;
2845 else
2846 ret = ((now.tv_sec + now.tv_nsec * 1e-9)
2847 - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
2848# else
2849 now = tickGet();
2850 if (stop == TM_START)
2851 tmstart = now;
2852 else
2853 ret = (now - tmstart) / (double)sysClkRateGet();
2854# endif
2855 return ret;
2856}
2857
2858#elif defined(_SC_CLK_TCK) /* by means of unistd.h */
2859# include <sys/times.h>
2860
2861double app_tminterval(int stop, int usertime)
2862{
2863 double ret = 0;
2864 struct tms rus;
2865 clock_t now = times(&rus);
2866 static clock_t tmstart;
2867
2868 if (usertime)
2869 now = rus.tms_utime;
2870
2871 if (stop == TM_START) {
2872 tmstart = now;
2873 } else {
2874 long int tck = sysconf(_SC_CLK_TCK);
2875
2876 ret = (now - tmstart) / (double)tck;
2877 }
2878
2879 return ret;
2880}
2881
2882#else
2883# include <sys/time.h>
2884# include <sys/resource.h>
2885
2886double app_tminterval(int stop, int usertime)
2887{
2888 double ret = 0;
2889 struct rusage rus;
2890 struct timeval now;
2891 static struct timeval tmstart;
2892
2893 if (usertime)
2894 getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
2895 else
2896 gettimeofday(&now, NULL);
2897
2898 if (stop == TM_START)
2899 tmstart = now;
2900 else
2901 ret = ((now.tv_sec + now.tv_usec * 1e-6)
2902 - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
2903
2904 return ret;
2905}
2906#endif
2907
2908int app_access(const char *name, int flag)
2909{
2910#ifdef _WIN32
2911 return _access(name, flag);
2912#else
2913 return access(name, flag);
2914#endif
2915}
2916
2917int app_isdir(const char *name)
2918{
2919 return opt_isdir(name);
2920}
2921
2922/* raw_read|write section */
2923#if defined(__VMS)
2924# include "vms_term_sock.h"
2925static int stdin_sock = -1;
2926
2927static void close_stdin_sock(void)
2928{
2929 TerminalSocket(TERM_SOCK_DELETE, &stdin_sock);
2930}
2931
2932int fileno_stdin(void)
2933{
2934 if (stdin_sock == -1) {
2935 TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
2936 atexit(close_stdin_sock);
2937 }
2938
2939 return stdin_sock;
2940}
2941#else
2942int fileno_stdin(void)
2943{
2944 return fileno(stdin);
2945}
2946#endif
2947
2948int fileno_stdout(void)
2949{
2950 return fileno(stdout);
2951}
2952
2953#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
2954int raw_read_stdin(void *buf, int siz)
2955{
2956 DWORD n;
2957
2958 if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
2959 return n;
2960 else
2961 return -1;
2962}
2963#elif defined(__VMS)
2964# include <sys/socket.h>
2965
2966int raw_read_stdin(void *buf, int siz)
2967{
2968 return recv(fileno_stdin(), buf, siz, 0);
2969}
2970#else
2971int raw_read_stdin(void *buf, int siz)
2972{
2973 return read(fileno_stdin(), buf, siz);
2974}
2975#endif
2976
2977#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
2978int raw_write_stdout(const void *buf, int siz)
2979{
2980 DWORD n;
2981
2982 if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
2983 return n;
2984 else
2985 return -1;
2986}
2987#elif defined(OPENSSL_SYS_TANDEM) && defined(OPENSSL_THREADS) \
2988 && defined(_SPT_MODEL_)
2989int raw_write_stdout(const void *buf, int siz)
2990{
2991 return write(fileno(stdout), (void *)buf, siz);
2992}
2993#else
2994int raw_write_stdout(const void *buf, int siz)
2995{
2996 return write(fileno_stdout(), buf, siz);
2997}
2998#endif
2999
3000/*
3001 * Centralized handling of input and output files with format specification
3002 * The format is meant to show what the input and output is supposed to be,
3003 * and is therefore a show of intent more than anything else. However, it
3004 * does impact behavior on some platforms, such as differentiating between
3005 * text and binary input/output on non-Unix platforms
3006 */
3007BIO *dup_bio_in(int format)
3008{
3009 return BIO_new_fp(stdin,
3010 BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
3011}
3012
3013BIO *dup_bio_out(int format)
3014{
3015 BIO *b = BIO_new_fp(stdout,
3016 BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
3017
3018#ifdef OPENSSL_SYS_VMS
3019 if (b != NULL && FMT_istext(format)) {
3020 BIO *btmp = BIO_new(BIO_f_linebuffer());
3021
3022 if (btmp == NULL) {
3023 BIO_free(b);
3024 return NULL;
3025 }
3026 b = BIO_push(btmp, b);
3027 }
3028#endif
3029
3030 return b;
3031}
3032
3033BIO *dup_bio_err(int format)
3034{
3035 BIO *b = BIO_new_fp(stderr,
3036 BIO_NOCLOSE | (FMT_istext(format) ? BIO_FP_TEXT : 0));
3037
3038#ifdef OPENSSL_SYS_VMS
3039 if (b != NULL && FMT_istext(format)) {
3040 BIO *btmp = BIO_new(BIO_f_linebuffer());
3041
3042 if (btmp == NULL) {
3043 BIO_free(b);
3044 return NULL;
3045 }
3046 b = BIO_push(btmp, b);
3047 }
3048#endif
3049 return b;
3050}
3051
3052void unbuffer(FILE *fp)
3053{
3054/*
3055 * On VMS, setbuf() will only take 32-bit pointers, and a compilation
3056 * with /POINTER_SIZE=64 will give off a MAYLOSEDATA2 warning here.
3057 * However, we trust that the C RTL will never give us a FILE pointer
3058 * above the first 4 GB of memory, so we simply turn off the warning
3059 * temporarily.
3060 */
3061#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
3062# pragma environment save
3063# pragma message disable maylosedata2
3064#endif
3065 setbuf(fp, NULL);
3066#if defined(OPENSSL_SYS_VMS) && defined(__DECC)
3067# pragma environment restore
3068#endif
3069}
3070
3071static const char *modestr(char mode, int format)
3072{
3073 OPENSSL_assert(mode == 'a' || mode == 'r' || mode == 'w');
3074
3075 switch (mode) {
3076 case 'a':
3077 return FMT_istext(format) ? "a" : "ab";
3078 case 'r':
3079 return FMT_istext(format) ? "r" : "rb";
3080 case 'w':
3081 return FMT_istext(format) ? "w" : "wb";
3082 }
3083 /* The assert above should make sure we never reach this point */
3084 return NULL;
3085}
3086
3087static const char *modeverb(char mode)
3088{
3089 switch (mode) {
3090 case 'a':
3091 return "appending";
3092 case 'r':
3093 return "reading";
3094 case 'w':
3095 return "writing";
3096 }
3097 return "(doing something)";
3098}
3099
3100/*
3101 * Open a file for writing, owner-read-only.
3102 */
3103BIO *bio_open_owner(const char *filename, int format, int private)
3104{
3105 FILE *fp = NULL;
3106 BIO *b = NULL;
3107 int textmode, bflags;
3108#ifndef OPENSSL_NO_POSIX_IO
3109 int fd = -1, mode;
3110#endif
3111
3112 if (!private || filename == NULL || strcmp(filename, "-") == 0)
3113 return bio_open_default(filename, 'w', format);
3114
3115 textmode = FMT_istext(format);
3116#ifndef OPENSSL_NO_POSIX_IO
3117 mode = O_WRONLY;
3118# ifdef O_CREAT
3119 mode |= O_CREAT;
3120# endif
3121# ifdef O_TRUNC
3122 mode |= O_TRUNC;
3123# endif
3124 if (!textmode) {
3125# ifdef O_BINARY
3126 mode |= O_BINARY;
3127# elif defined(_O_BINARY)
3128 mode |= _O_BINARY;
3129# endif
3130 }
3131
3132# ifdef OPENSSL_SYS_VMS
3133 /*
3134 * VMS doesn't have O_BINARY, it just doesn't make sense. But,
3135 * it still needs to know that we're going binary, or fdopen()
3136 * will fail with "invalid argument"... so we tell VMS what the
3137 * context is.
3138 */
3139 if (!textmode)
3140 fd = open(filename, mode, 0600, "ctx=bin");
3141 else
3142# endif
3143 fd = open(filename, mode, 0600);
3144 if (fd < 0)
3145 goto err;
3146 fp = fdopen(fd, modestr('w', format));
3147#else /* OPENSSL_NO_POSIX_IO */
3148 /* Have stdio but not Posix IO, do the best we can */
3149 fp = fopen(filename, modestr('w', format));
3150#endif /* OPENSSL_NO_POSIX_IO */
3151 if (fp == NULL)
3152 goto err;
3153 bflags = BIO_CLOSE;
3154 if (textmode)
3155 bflags |= BIO_FP_TEXT;
3156 b = BIO_new_fp(fp, bflags);
3157 if (b != NULL)
3158 return b;
3159
3160 err:
3161 BIO_printf(bio_err, "%s: Can't open \"%s\" for writing, %s\n",
3162 opt_getprog(), filename, strerror(errno));
3163 ERR_print_errors(bio_err);
3164 /* If we have fp, then fdopen took over fd, so don't close both. */
3165 if (fp != NULL)
3166 fclose(fp);
3167#ifndef OPENSSL_NO_POSIX_IO
3168 else if (fd >= 0)
3169 close(fd);
3170#endif
3171 return NULL;
3172}
3173
3174static BIO *bio_open_default_(const char *filename, char mode, int format,
3175 int quiet)
3176{
3177 BIO *ret;
3178
3179 if (filename == NULL || strcmp(filename, "-") == 0) {
3180 ret = mode == 'r' ? dup_bio_in(format) : dup_bio_out(format);
3181 if (quiet) {
3182 ERR_clear_error();
3183 return ret;
3184 }
3185 if (ret != NULL)
3186 return ret;
3187 BIO_printf(bio_err,
3188 "Can't open %s, %s\n",
3189 mode == 'r' ? "stdin" : "stdout", strerror(errno));
3190 } else {
3191 ret = BIO_new_file(filename, modestr(mode, format));
3192 if (quiet) {
3193 ERR_clear_error();
3194 return ret;
3195 }
3196 if (ret != NULL)
3197 return ret;
3198 BIO_printf(bio_err,
3199 "Can't open \"%s\" for %s, %s\n",
3200 filename, modeverb(mode), strerror(errno));
3201 }
3202 ERR_print_errors(bio_err);
3203 return NULL;
3204}
3205
3206BIO *bio_open_default(const char *filename, char mode, int format)
3207{
3208 return bio_open_default_(filename, mode, format, 0);
3209}
3210
3211BIO *bio_open_default_quiet(const char *filename, char mode, int format)
3212{
3213 return bio_open_default_(filename, mode, format, 1);
3214}
3215
3216int mem_bio_to_file(BIO *in, const char *filename, int format, int private)
3217{
3218 int rv = 0, ret = 0;
3219 BIO *out = NULL;
3220 BUF_MEM *mem_buffer = NULL;
3221
3222 rv = BIO_get_mem_ptr(in, &mem_buffer);
3223 if (rv <= 0) {
3224 BIO_puts(bio_err, "Error reading mem buffer\n");
3225 goto end;
3226 }
3227 out = bio_open_owner(filename, format, private);
3228 if (out == NULL)
3229 goto end;
3230 rv = BIO_write(out, mem_buffer->data, (int)mem_buffer->length);
3231 if (rv < 0 || (size_t)rv != mem_buffer->length)
3232 BIO_printf(bio_err, "Error writing to output file: '%s'\n", filename);
3233 else
3234 ret = 1;
3235end:
3236 if (!ret)
3237 ERR_print_errors(bio_err);
3238 BIO_free_all(out);
3239 return ret;
3240}
3241
3242void wait_for_async(SSL *s)
3243{
3244 /* On Windows select only works for sockets, so we simply don't wait */
3245#ifndef OPENSSL_SYS_WINDOWS
3246 int width = 0;
3247 fd_set asyncfds;
3248 OSSL_ASYNC_FD *fds;
3249 size_t numfds;
3250 size_t i;
3251
3252 if (!SSL_get_all_async_fds(s, NULL, &numfds))
3253 return;
3254 if (numfds == 0)
3255 return;
3256 fds = app_malloc_array(numfds, sizeof(*fds), "allocate async fds");
3257 if (!SSL_get_all_async_fds(s, fds, &numfds)) {
3258 OPENSSL_free(fds);
3259 return;
3260 }
3261
3262 FD_ZERO(&asyncfds);
3263 for (i = 0; i < numfds; i++) {
3264 if (width <= (int)fds[i])
3265 width = (int)fds[i] + 1;
3266 openssl_fdset((int)fds[i], &asyncfds);
3267 }
3268 select(width, (void *)&asyncfds, NULL, NULL, NULL);
3269 OPENSSL_free(fds);
3270#endif
3271}
3272
3273/* if OPENSSL_SYS_WINDOWS is defined then so is OPENSSL_SYS_MSDOS */
3274#if defined(OPENSSL_SYS_MSDOS)
3275int has_stdin_waiting(void)
3276{
3277# if defined(OPENSSL_SYS_WINDOWS)
3278 HANDLE inhand = GetStdHandle(STD_INPUT_HANDLE);
3279 DWORD events = 0;
3280 INPUT_RECORD inputrec;
3281 DWORD insize = 1;
3282 BOOL peeked;
3283
3284 if (inhand == INVALID_HANDLE_VALUE) {
3285 return 0;
3286 }
3287
3288 peeked = PeekConsoleInput(inhand, &inputrec, insize, &events);
3289 if (!peeked) {
3290 /* Probably redirected input? _kbhit() does not work in this case */
3291 if (!feof(stdin)) {
3292 return 1;
3293 }
3294 return 0;
3295 }
3296# endif
3297 return _kbhit();
3298}
3299#endif
3300
3301/* Corrupt a signature by modifying final byte */
3302void corrupt_signature(const ASN1_STRING *signature)
3303{
3304 unsigned char *s = signature->data;
3305
3306 s[signature->length - 1] ^= 0x1;
3307}
3308
3309int check_cert_time_string(const char *time, const char *desc)
3310{
3311 if (time == NULL || strcmp(time, "today") == 0
3312 || ASN1_TIME_set_string_X509(NULL, time))
3313 return 1;
3314 BIO_printf(bio_err,
3315 "%s is invalid, it should be \"today\" or have format [CC]YYMMDDHHMMSSZ\n",
3316 desc);
3317 return 0;
3318}
3319
3320int set_cert_times(X509 *x, const char *startdate, const char *enddate,
3321 int days, int strict_compare_times)
3322{
3323 if (!check_cert_time_string(startdate, "start date"))
3324 return 0;
3325 if (!check_cert_time_string(enddate, "end date"))
3326 return 0;
3327 if (startdate == NULL || strcmp(startdate, "today") == 0) {
3328 if (X509_gmtime_adj(X509_getm_notBefore(x), 0) == NULL) {
3329 BIO_printf(bio_err, "Error setting notBefore certificate field\n");
3330 return 0;
3331 }
3332 } else {
3333 if (!ASN1_TIME_set_string_X509(X509_getm_notBefore(x), startdate)) {
3334 BIO_printf(bio_err, "Error setting notBefore certificate field\n");
3335 return 0;
3336 }
3337 }
3338 if (enddate != NULL && strcmp(enddate, "today") == 0) {
3339 enddate = NULL;
3340 days = 0;
3341 }
3342 if (enddate == NULL) {
3343 if (X509_time_adj_ex(X509_getm_notAfter(x), days, 0, NULL) == NULL) {
3344 BIO_printf(bio_err, "Error setting notAfter certificate field\n");
3345 return 0;
3346 }
3347 } else if (!ASN1_TIME_set_string_X509(X509_getm_notAfter(x), enddate)) {
3348 BIO_printf(bio_err, "Error setting notAfter certificate field\n");
3349 return 0;
3350 }
3351 if (ASN1_TIME_compare(X509_get0_notAfter(x), X509_get0_notBefore(x)) < 0) {
3352 BIO_printf(bio_err, "%s: end date before start date\n",
3353 strict_compare_times ? "Error" : "Warning");
3354 if (strict_compare_times)
3355 return 0;
3356 }
3357 return 1;
3358}
3359
3360int set_crl_lastupdate(X509_CRL *crl, const char *lastupdate)
3361{
3362 int ret = 0;
3363 ASN1_TIME *tm = ASN1_TIME_new();
3364
3365 if (tm == NULL)
3366 goto end;
3367
3368 if (lastupdate == NULL) {
3369 if (X509_gmtime_adj(tm, 0) == NULL)
3370 goto end;
3371 } else {
3372 if (!ASN1_TIME_set_string_X509(tm, lastupdate))
3373 goto end;
3374 }
3375
3376 if (!X509_CRL_set1_lastUpdate(crl, tm))
3377 goto end;
3378
3379 ret = 1;
3380end:
3381 ASN1_TIME_free(tm);
3382 return ret;
3383}
3384
3385int set_crl_nextupdate(X509_CRL *crl, const char *nextupdate,
3386 long days, long hours, long secs)
3387{
3388 int ret = 0;
3389 ASN1_TIME *tm = ASN1_TIME_new();
3390
3391 if (tm == NULL)
3392 goto end;
3393
3394 if (nextupdate == NULL) {
3395 if (X509_time_adj_ex(tm, days, hours * 60 * 60 + secs, NULL) == NULL)
3396 goto end;
3397 } else {
3398 if (!ASN1_TIME_set_string_X509(tm, nextupdate))
3399 goto end;
3400 }
3401
3402 if (!X509_CRL_set1_nextUpdate(crl, tm))
3403 goto end;
3404
3405 ret = 1;
3406end:
3407 ASN1_TIME_free(tm);
3408 return ret;
3409}
3410
3411void make_uppercase(char *string)
3412{
3413 int i;
3414
3415 for (i = 0; string[i] != '\0'; i++)
3416 string[i] = toupper((unsigned char)string[i]);
3417}
3418
3419OSSL_PARAM *app_params_new_from_opts(STACK_OF(OPENSSL_STRING) *opts,
3420 const OSSL_PARAM *paramdefs)
3421{
3422 OSSL_PARAM *params = NULL;
3423 size_t sz = (size_t)sk_OPENSSL_STRING_num(opts);
3424 size_t params_n;
3425 char *opt = "", *stmp, *vtmp = NULL;
3426 int found = 1;
3427
3428 if (opts == NULL)
3429 return NULL;
3430
3431 params = OPENSSL_calloc(sz + 1, sizeof(OSSL_PARAM));
3432 if (params == NULL)
3433 return NULL;
3434
3435 for (params_n = 0; params_n < sz; params_n++) {
3436 opt = sk_OPENSSL_STRING_value(opts, (int)params_n);
3437 if ((stmp = OPENSSL_strdup(opt)) == NULL
3438 || (vtmp = strchr(stmp, ':')) == NULL)
3439 goto err;
3440 /* Replace ':' with 0 to terminate the string pointed to by stmp */
3441 *vtmp = 0;
3442 /* Skip over the separator so that vmtp points to the value */
3443 vtmp++;
3444 if (!OSSL_PARAM_allocate_from_text(&params[params_n], paramdefs,
3445 stmp, vtmp, strlen(vtmp), &found))
3446 goto err;
3447 OPENSSL_free(stmp);
3448 }
3449 params[params_n] = OSSL_PARAM_construct_end();
3450 return params;
3451err:
3452 OPENSSL_free(stmp);
3453 BIO_printf(bio_err, "Parameter %s '%s'\n", found ? "error" : "unknown",
3454 opt);
3455 ERR_print_errors(bio_err);
3456 app_params_free(params);
3457 return NULL;
3458}
3459
3460void app_params_free(OSSL_PARAM *params)
3461{
3462 int i;
3463
3464 if (params != NULL) {
3465 for (i = 0; params[i].key != NULL; ++i)
3466 OPENSSL_free(params[i].data);
3467 OPENSSL_free(params);
3468 }
3469}
3470
3471EVP_PKEY *app_keygen(EVP_PKEY_CTX *ctx, const char *alg, int bits, int verbose)
3472{
3473 EVP_PKEY *res = NULL;
3474
3475 if (verbose && alg != NULL) {
3476 BIO_printf(bio_err, "Generating %s key", alg);
3477 if (bits > 0)
3478 BIO_printf(bio_err, " with %d bits\n", bits);
3479 else
3480 BIO_printf(bio_err, "\n");
3481 }
3482 if (!RAND_status())
3483 BIO_printf(bio_err, "Warning: generating random key material may take a long time\n"
3484 "if the system has a poor entropy source\n");
3485 if (EVP_PKEY_keygen(ctx, &res) <= 0)
3486 BIO_printf(bio_err, "%s: Error generating %s key\n", opt_getprog(),
3487 alg != NULL ? alg : "asymmetric");
3488 return res;
3489}
3490
3491EVP_PKEY *app_paramgen(EVP_PKEY_CTX *ctx, const char *alg)
3492{
3493 EVP_PKEY *res = NULL;
3494
3495 if (!RAND_status())
3496 BIO_printf(bio_err, "Warning: generating random key parameters may take a long time\n"
3497 "if the system has a poor entropy source\n");
3498 if (EVP_PKEY_paramgen(ctx, &res) <= 0)
3499 BIO_printf(bio_err, "%s: Generating %s key parameters failed\n",
3500 opt_getprog(), alg != NULL ? alg : "asymmetric");
3501 return res;
3502}
3503
3504/*
3505 * Return non-zero if the legacy path is still an option.
3506 * This decision is based on the global command line operations and the
3507 * behaviour thus far.
3508 */
3509int opt_legacy_okay(void)
3510{
3511 int provider_options = opt_provider_option_given();
3512 int libctx = app_get0_libctx() != NULL || app_get0_propq() != NULL;
3513
3514 /*
3515 * Having a provider option specified or a custom library context or
3516 * property query, is a sure sign we're not using legacy.
3517 */
3518 if (provider_options || libctx)
3519 return 0;
3520 return 1;
3521}
3522
3523#define MAX_KEY_SIZE 2048 /* Hope nobody needs mac key longer than 2048 bytes */
3524
3525/*
3526 * Implementations of mac algorithms only support getting a key via the
3527 * key and hexkey parameters. This function processes additional parameters
3528 * for reading a key from an environment variable or from a file or stdin
3529 * and forms a key or hexkey parameter with the read key.
3530 * Leaves other parameters unchanged.
3531 * Allocates a string with a new parameter and returns a pointer to this
3532 * string, the calling code must free this string by calling OPENSSL_clear_free.
3533 * Returns NULL in case of an error.
3534 */
3535char *process_additional_mac_key_arguments(const char *arg)
3536{
3537 static BIO *keybio = NULL;
3538 char *val = NULL, *inbuf = NULL, *outbuf = NULL;
3539 int total_read = 0;
3540 int n;
3541 char dummy;
3542 int too_long;
3543
3544 if (CHECK_AND_SKIP_PREFIX(arg, "keyenv:")) {
3545 if (strlen(arg) == 0) {
3546 BIO_printf(bio_err, "Empty environment variable name\n");
3547 return NULL;
3548 }
3549 val = getenv(arg);
3550 if (val == NULL) {
3551 BIO_printf(bio_err, "No environment variable %s\n", arg);
3552 return NULL;
3553 }
3554 outbuf = app_malloc(strlen("key:") + strlen(val) + 1, "MACOPT KEYENV");
3555 strcpy(outbuf, "key:");
3556 strcat(outbuf, val);
3557 return outbuf;
3558 }
3559
3560 if (CHECK_AND_SKIP_PREFIX(arg, "keyenvhex:")) {
3561 if (strlen(arg) == 0) {
3562 BIO_printf(bio_err, "Empty environment variable name\n");
3563 return NULL;
3564 }
3565 val = getenv(arg);
3566 if (val == NULL) {
3567 BIO_printf(bio_err, "No environment variable %s\n", arg);
3568 return NULL;
3569 }
3570 outbuf = app_malloc(strlen("hexkey:") + strlen(val) + 1, "MACOPT KEYENVHEX");
3571 strcpy(outbuf, "hexkey:");
3572 strcat(outbuf, val);
3573 return outbuf;
3574 }
3575
3576 if (CHECK_AND_SKIP_PREFIX(arg, "keyfile:")) {
3577 if (strlen(arg) == 0) {
3578 BIO_printf(bio_err, "Empty key file name\n");
3579 return NULL;
3580 }
3581 keybio = BIO_new_file(arg, "rb");
3582 if (keybio == NULL) {
3583 BIO_printf(bio_err, "Can't open file %s\n", arg);
3584 return NULL;
3585 }
3586 inbuf = app_malloc(MAX_KEY_SIZE, "MACOPT KEYFILE");
3587 while (total_read < MAX_KEY_SIZE) {
3588 n = BIO_read(keybio, inbuf + total_read, MAX_KEY_SIZE - total_read);
3589 if (n < 0) {
3590 BIO_printf(bio_err, "Can't read file %s\n", arg);
3591 OPENSSL_clear_free(inbuf, MAX_KEY_SIZE);
3592 BIO_free(keybio);
3593 return NULL;
3594 }
3595 if (n == 0) /* EOF */
3596 break;
3597 total_read += n;
3598 }
3599 too_long = (total_read == MAX_KEY_SIZE && BIO_read(keybio, &dummy, 1) > 0);
3600 BIO_free(keybio);
3601 if (total_read == 0 || too_long) {
3602 /* File is empty or longer than MAX_KEY_SIZE */
3603 BIO_printf(bio_err, (too_long) ? "File %s is too long\n" : "File %s is empty\n", arg);
3604 OPENSSL_clear_free(inbuf, MAX_KEY_SIZE);
3605 return NULL;
3606 }
3607 outbuf = app_malloc(strlen("hexkey:") + total_read * 2 + 1, "MACOPT KEYFILE");
3608 strcpy(outbuf, "hexkey:");
3609 OPENSSL_buf2hexstr_ex(outbuf + strlen("hexkey:"), total_read * 2 + 1,
3610 NULL, (unsigned char *)inbuf, total_read, '\0');
3611 OPENSSL_clear_free(inbuf, MAX_KEY_SIZE);
3612 return outbuf;
3613 }
3614
3615 if (strcmp(arg, "keystdin") == 0) {
3616 inbuf = get_str_from_file(NULL);
3617 if (inbuf == NULL)
3618 return NULL;
3619 if (strlen(inbuf) == 0) {
3620 BIO_printf(bio_err, "Empty key\n");
3621 clear_free(inbuf);
3622 return NULL;
3623 }
3624 outbuf = app_malloc(strlen("key:") + strlen(inbuf) + 1, "MACOPT KEYSTDIN");
3625 strcpy(outbuf, "key:");
3626 strcat(outbuf, inbuf);
3627 clear_free(inbuf);
3628 return outbuf;
3629 }
3630
3631 return OPENSSL_strdup(arg);
3632}
3633
3634/*
3635 * Read one line from file.
3636 * Allocates a string with the data read and returns a pointer to this
3637 * string, the calling code must free this string.
3638 * If filename == NULL, read from standard input.
3639 * Returns NULL in case of any error.
3640 */
3641char *get_str_from_file(const char *filename)
3642{
3643 static BIO *bio = NULL;
3644 int n;
3645 char *buf = NULL;
3646 char *tmp;
3647
3648 if (filename == NULL) {
3649 unbuffer(stdin);
3650 bio = dup_bio_in(FORMAT_TEXT);
3651 if (bio == NULL) {
3652 BIO_printf(bio_err, "Can't open BIO for stdin\n");
3653 return NULL;
3654 }
3655 } else {
3656 bio = BIO_new_file(filename, "r");
3657 if (bio == NULL) {
3658 BIO_printf(bio_err, "Can't open file %s\n", filename);
3659 return NULL;
3660 }
3661 }
3662 buf = app_malloc(MAX_KEY_SIZE, "get_str_from_file");
3663 memset(buf, 0, MAX_KEY_SIZE);
3664 n = BIO_gets(bio, buf, MAX_KEY_SIZE - 1);
3665 BIO_free_all(bio);
3666 bio = NULL;
3667 if (n <= 0) {
3668 BIO_printf(bio_err, "Error reading from %s\n", filename);
3669 return NULL;
3670 }
3671 tmp = strchr(buf, '\n');
3672 if (tmp != NULL)
3673 *tmp = 0;
3674 return buf;
3675}
Mirror of https://github.com/openssl/openssl.git