1 /* 2 * Copyright 1995-2022 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 #include <stdio.h> 11 #include <stdlib.h> 12 #include <string.h> 13 #include "apps.h" 14 #include "progs.h" 15 #include <openssl/bio.h> 16 #include <openssl/asn1.h> 17 #include <openssl/err.h> 18 #include <openssl/bn.h> 19 #include <openssl/evp.h> 20 #include <openssl/x509.h> 21 #include <openssl/x509v3.h> 22 #include <openssl/objects.h> 23 #include <openssl/pem.h> 24 #include <openssl/rsa.h> 25 #ifndef OPENSSL_NO_DSA 26 # include <openssl/dsa.h> 27 #endif 28 29 #undef POSTFIX 30 #define POSTFIX ".srl" 31 #define DEFAULT_DAYS 30 /* default cert validity period in days */ 32 #define UNSET_DAYS -2 /* -1 is used for testing expiration checks */ 33 #define EXT_COPY_UNSET -1 34 35 static int callb(int ok, X509_STORE_CTX *ctx); 36 static ASN1_INTEGER *x509_load_serial(const char *CAfile, 37 const char *serialfile, int create); 38 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt); 39 static int print_x509v3_exts(BIO *bio, X509 *x, const char *ext_names); 40 41 typedef enum OPTION_choice { 42 OPT_COMMON, 43 OPT_INFORM, OPT_OUTFORM, OPT_KEYFORM, OPT_REQ, OPT_CAFORM, 44 OPT_CAKEYFORM, OPT_VFYOPT, OPT_SIGOPT, OPT_DAYS, OPT_PASSIN, OPT_EXTFILE, 45 OPT_EXTENSIONS, OPT_IN, OPT_OUT, OPT_KEY, OPT_SIGNKEY, OPT_CA, OPT_CAKEY, 46 OPT_CASERIAL, OPT_SET_SERIAL, OPT_NEW, OPT_FORCE_PUBKEY, OPT_SUBJ, 47 OPT_ADDTRUST, OPT_ADDREJECT, OPT_SETALIAS, OPT_CERTOPT, OPT_DATEOPT, OPT_NAMEOPT, 48 OPT_EMAIL, OPT_OCSP_URI, OPT_SERIAL, OPT_NEXT_SERIAL, 49 OPT_MODULUS, OPT_PUBKEY, OPT_X509TOREQ, OPT_TEXT, OPT_HASH, 50 OPT_ISSUER_HASH, OPT_SUBJECT, OPT_ISSUER, OPT_FINGERPRINT, OPT_DATES, 51 OPT_PURPOSE, OPT_STARTDATE, OPT_ENDDATE, OPT_CHECKEND, OPT_CHECKHOST, 52 OPT_CHECKEMAIL, OPT_CHECKIP, OPT_NOOUT, OPT_TRUSTOUT, OPT_CLRTRUST, 53 OPT_CLRREJECT, OPT_ALIAS, OPT_CACREATESERIAL, OPT_CLREXT, OPT_OCSPID, 54 OPT_SUBJECT_HASH_OLD, OPT_ISSUER_HASH_OLD, OPT_COPY_EXTENSIONS, 55 OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT, OPT_PRESERVE_DATES, 56 OPT_R_ENUM, OPT_PROV_ENUM, OPT_EXT 57 } OPTION_CHOICE; 58 59 const OPTIONS x509_options[] = { 60 OPT_SECTION("General"), 61 {"help", OPT_HELP, '-', "Display this summary"}, 62 63 {"in", OPT_IN, '<', 64 "Certificate input, or CSR input file with -req (default stdin)"}, 65 {"passin", OPT_PASSIN, 's', "Private key and cert file pass-phrase source"}, 66 {"new", OPT_NEW, '-', "Generate a certificate from scratch"}, 67 {"x509toreq", OPT_X509TOREQ, '-', 68 "Output a certification request (rather than a certificate)"}, 69 {"req", OPT_REQ, '-', "Input is a CSR file (rather than a certificate)"}, 70 {"copy_extensions", OPT_COPY_EXTENSIONS, 's', 71 "copy extensions when converting from CSR to x509 or vice versa"}, 72 {"inform", OPT_INFORM, 'f', 73 "CSR input file format (DER or PEM) - default PEM"}, 74 {"vfyopt", OPT_VFYOPT, 's', "CSR verification parameter in n:v form"}, 75 {"key", OPT_KEY, 's', 76 "Key for signing, and to include unless using -force_pubkey"}, 77 {"signkey", OPT_SIGNKEY, 's', 78 "Same as -key"}, 79 {"keyform", OPT_KEYFORM, 'E', 80 "Key input format (ENGINE, other values ignored)"}, 81 {"out", OPT_OUT, '>', "Output file - default stdout"}, 82 {"outform", OPT_OUTFORM, 'f', 83 "Output format (DER or PEM) - default PEM"}, 84 {"nocert", OPT_NOCERT, '-', 85 "No cert output (except for requested printing)"}, 86 {"noout", OPT_NOOUT, '-', "No output (except for requested printing)"}, 87 88 OPT_SECTION("Certificate printing"), 89 {"text", OPT_TEXT, '-', "Print the certificate in text form"}, 90 {"dateopt", OPT_DATEOPT, 's', "Datetime format used for printing. (rfc_822/iso_8601). Default is rfc_822."}, 91 {"certopt", OPT_CERTOPT, 's', "Various certificate text printing options"}, 92 {"fingerprint", OPT_FINGERPRINT, '-', "Print the certificate fingerprint"}, 93 {"alias", OPT_ALIAS, '-', "Print certificate alias"}, 94 {"serial", OPT_SERIAL, '-', "Print serial number value"}, 95 {"startdate", OPT_STARTDATE, '-', "Print the notBefore field"}, 96 {"enddate", OPT_ENDDATE, '-', "Print the notAfter field"}, 97 {"dates", OPT_DATES, '-', "Print both notBefore and notAfter fields"}, 98 {"subject", OPT_SUBJECT, '-', "Print subject DN"}, 99 {"issuer", OPT_ISSUER, '-', "Print issuer DN"}, 100 {"nameopt", OPT_NAMEOPT, 's', 101 "Certificate subject/issuer name printing options"}, 102 {"email", OPT_EMAIL, '-', "Print email address(es)"}, 103 {"hash", OPT_HASH, '-', "Synonym for -subject_hash (for backward compat)"}, 104 {"subject_hash", OPT_HASH, '-', "Print subject hash value"}, 105 #ifndef OPENSSL_NO_MD5 106 {"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-', 107 "Print old-style (MD5) subject hash value"}, 108 #endif 109 {"issuer_hash", OPT_ISSUER_HASH, '-', "Print issuer hash value"}, 110 #ifndef OPENSSL_NO_MD5 111 {"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-', 112 "Print old-style (MD5) issuer hash value"}, 113 #endif 114 {"ext", OPT_EXT, 's', 115 "Restrict which X.509 extensions to print and/or copy"}, 116 {"ocspid", OPT_OCSPID, '-', 117 "Print OCSP hash values for the subject name and public key"}, 118 {"ocsp_uri", OPT_OCSP_URI, '-', "Print OCSP Responder URL(s)"}, 119 {"purpose", OPT_PURPOSE, '-', "Print out certificate purposes"}, 120 {"pubkey", OPT_PUBKEY, '-', "Print the public key in PEM format"}, 121 {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"}, 122 123 OPT_SECTION("Certificate checking"), 124 {"checkend", OPT_CHECKEND, 'M', 125 "Check whether cert expires in the next arg seconds"}, 126 {OPT_MORE_STR, 1, 1, "Exit 1 (failure) if so, 0 if not"}, 127 {"checkhost", OPT_CHECKHOST, 's', "Check certificate matches host"}, 128 {"checkemail", OPT_CHECKEMAIL, 's', "Check certificate matches email"}, 129 {"checkip", OPT_CHECKIP, 's', "Check certificate matches ipaddr"}, 130 131 OPT_SECTION("Certificate output"), 132 {"set_serial", OPT_SET_SERIAL, 's', 133 "Serial number to use, overrides -CAserial"}, 134 {"next_serial", OPT_NEXT_SERIAL, '-', 135 "Increment current certificate serial number"}, 136 {"days", OPT_DAYS, 'n', 137 "Number of days until newly generated certificate expires - default 30"}, 138 {"preserve_dates", OPT_PRESERVE_DATES, '-', 139 "Preserve existing validity dates"}, 140 {"subj", OPT_SUBJ, 's', "Set or override certificate subject (and issuer)"}, 141 {"force_pubkey", OPT_FORCE_PUBKEY, '<', 142 "Place the given key in new certificate"}, 143 {"clrext", OPT_CLREXT, '-', 144 "Do not take over any extensions from the source certificate or request"}, 145 {"extfile", OPT_EXTFILE, '<', "Config file with X509V3 extensions to add"}, 146 {"extensions", OPT_EXTENSIONS, 's', 147 "Section of extfile to use - default: unnamed section"}, 148 {"sigopt", OPT_SIGOPT, 's', "Signature parameter, in n:v form"}, 149 {"badsig", OPT_BADSIG, '-', 150 "Corrupt last byte of certificate signature (for test)"}, 151 {"", OPT_MD, '-', "Any supported digest, used for signing and printing"}, 152 153 OPT_SECTION("Micro-CA"), 154 {"CA", OPT_CA, '<', 155 "Use the given CA certificate, conflicts with -key"}, 156 {"CAform", OPT_CAFORM, 'F', "CA cert format (PEM/DER/P12); has no effect"}, 157 {"CAkey", OPT_CAKEY, 's', "The corresponding CA key; default is -CA arg"}, 158 {"CAkeyform", OPT_CAKEYFORM, 'E', 159 "CA key format (ENGINE, other values ignored)"}, 160 {"CAserial", OPT_CASERIAL, 's', 161 "File that keeps track of CA-generated serial number"}, 162 {"CAcreateserial", OPT_CACREATESERIAL, '-', 163 "Create CA serial number file if it does not exist"}, 164 165 OPT_SECTION("Certificate trust output"), 166 {"trustout", OPT_TRUSTOUT, '-', "Mark certificate PEM output as trusted"}, 167 {"setalias", OPT_SETALIAS, 's', "Set certificate alias (nickname)"}, 168 {"clrtrust", OPT_CLRTRUST, '-', "Clear all trusted purposes"}, 169 {"addtrust", OPT_ADDTRUST, 's', "Trust certificate for a given purpose"}, 170 {"clrreject", OPT_CLRREJECT, '-', 171 "Clears all the prohibited or rejected uses of the certificate"}, 172 {"addreject", OPT_ADDREJECT, 's', 173 "Reject certificate for a given purpose"}, 174 175 OPT_R_OPTIONS, 176 #ifndef OPENSSL_NO_ENGINE 177 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 178 #endif 179 OPT_PROV_OPTIONS, 180 {NULL} 181 }; 182 183 static void warn_copying(ASN1_OBJECT *excluded, const char *names) 184 { 185 const char *sn = OBJ_nid2sn(OBJ_obj2nid(excluded)); 186 187 if (names != NULL && strstr(names, sn) != NULL) 188 BIO_printf(bio_err, 189 "Warning: -ext should not specify copying %s extension to CSR; ignoring this\n", 190 sn); 191 } 192 193 static X509_REQ *x509_to_req(X509 *cert, int ext_copy, const char *names) 194 { 195 const STACK_OF(X509_EXTENSION) *cert_exts = X509_get0_extensions(cert); 196 int i, n = sk_X509_EXTENSION_num(cert_exts /* may be NULL */); 197 ASN1_OBJECT *skid = OBJ_nid2obj(NID_subject_key_identifier); 198 ASN1_OBJECT *akid = OBJ_nid2obj(NID_authority_key_identifier); 199 STACK_OF(X509_EXTENSION) *exts; 200 X509_REQ *req = X509_to_X509_REQ(cert, NULL, NULL); 201 202 if (req == NULL) 203 return NULL; 204 205 /* 206 * Filter out SKID and AKID extensions, which make no sense in a CSR. 207 * If names is not NULL, copy only those extensions listed there. 208 */ 209 warn_copying(skid, names); 210 warn_copying(akid, names); 211 if ((exts = sk_X509_EXTENSION_new_reserve(NULL, n)) == NULL) 212 goto err; 213 for (i = 0; i < n; i++) { 214 X509_EXTENSION *ex = sk_X509_EXTENSION_value(cert_exts, i); 215 ASN1_OBJECT *obj = X509_EXTENSION_get_object(ex); 216 217 if (OBJ_cmp(obj, skid) != 0 && OBJ_cmp(obj, akid) != 0 218 && !sk_X509_EXTENSION_push(exts, ex)) 219 goto err; 220 } 221 222 if (sk_X509_EXTENSION_num(exts) > 0) { 223 if (ext_copy != EXT_COPY_UNSET && ext_copy != EXT_COPY_NONE 224 && !X509_REQ_add_extensions(req, exts)) { 225 BIO_printf(bio_err, "Error copying extensions from certificate\n"); 226 goto err; 227 } 228 } 229 sk_X509_EXTENSION_free(exts); 230 return req; 231 232 err: 233 sk_X509_EXTENSION_free(exts); 234 X509_REQ_free(req); 235 return NULL; 236 } 237 238 static int self_signed(X509_STORE *ctx, X509 *cert) 239 { 240 X509_STORE_CTX *xsc = X509_STORE_CTX_new(); 241 int ret = 0; 242 243 if (xsc == NULL || !X509_STORE_CTX_init(xsc, ctx, cert, NULL)) { 244 BIO_printf(bio_err, "Error initialising X509 store\n"); 245 } else { 246 X509_STORE_CTX_set_flags(xsc, X509_V_FLAG_CHECK_SS_SIGNATURE); 247 ret = X509_verify_cert(xsc) > 0; 248 } 249 X509_STORE_CTX_free(xsc); 250 return ret; 251 } 252 253 int x509_main(int argc, char **argv) 254 { 255 ASN1_INTEGER *sno = NULL; 256 ASN1_OBJECT *objtmp = NULL; 257 BIO *out = NULL; 258 CONF *extconf = NULL; 259 int ext_copy = EXT_COPY_UNSET; 260 X509V3_CTX ext_ctx; 261 EVP_PKEY *privkey = NULL, *CAkey = NULL, *pubkey = NULL; 262 EVP_PKEY *pkey; 263 int newcert = 0; 264 char *subj = NULL, *digest = NULL; 265 X509_NAME *fsubj = NULL; 266 const unsigned long chtype = MBSTRING_ASC; 267 const int multirdn = 1; 268 STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL; 269 STACK_OF(OPENSSL_STRING) *sigopts = NULL, *vfyopts = NULL; 270 X509 *x = NULL, *xca = NULL, *issuer_cert; 271 X509_REQ *req = NULL, *rq = NULL; 272 X509_STORE *ctx = NULL; 273 char *CAkeyfile = NULL, *CAserial = NULL, *pubkeyfile = NULL, *alias = NULL; 274 char *checkhost = NULL, *checkemail = NULL, *checkip = NULL; 275 char *ext_names = NULL; 276 char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL; 277 char *infile = NULL, *outfile = NULL, *privkeyfile = NULL, *CAfile = NULL; 278 char *prog; 279 int days = UNSET_DAYS; /* not explicitly set */ 280 int x509toreq = 0, modulus = 0, print_pubkey = 0, pprint = 0; 281 int CAformat = FORMAT_UNDEF, CAkeyformat = FORMAT_UNDEF; 282 unsigned long dateopt = ASN1_DTFLGS_RFC822; 283 int fingerprint = 0, reqfile = 0, checkend = 0; 284 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyformat = FORMAT_UNDEF; 285 int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0; 286 int noout = 0, CA_createserial = 0, email = 0; 287 int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0; 288 int ret = 1, i, j, num = 0, badsig = 0, clrext = 0, nocert = 0; 289 int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0, ext = 0; 290 int enddate = 0; 291 time_t checkoffset = 0; 292 unsigned long certflag = 0; 293 int preserve_dates = 0; 294 OPTION_CHOICE o; 295 ENGINE *e = NULL; 296 #ifndef OPENSSL_NO_MD5 297 int subject_hash_old = 0, issuer_hash_old = 0; 298 #endif 299 300 ctx = X509_STORE_new(); 301 if (ctx == NULL) 302 goto end; 303 X509_STORE_set_verify_cb(ctx, callb); 304 305 prog = opt_init(argc, argv, x509_options); 306 while ((o = opt_next()) != OPT_EOF) { 307 switch (o) { 308 case OPT_EOF: 309 case OPT_ERR: 310 opthelp: 311 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 312 goto end; 313 case OPT_HELP: 314 opt_help(x509_options); 315 ret = 0; 316 goto end; 317 case OPT_INFORM: 318 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) 319 goto opthelp; 320 break; 321 case OPT_IN: 322 infile = opt_arg(); 323 break; 324 case OPT_OUTFORM: 325 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat)) 326 goto opthelp; 327 break; 328 case OPT_KEYFORM: 329 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyformat)) 330 goto opthelp; 331 break; 332 case OPT_CAFORM: 333 if (!opt_format(opt_arg(), OPT_FMT_ANY, &CAformat)) 334 goto opthelp; 335 break; 336 case OPT_CAKEYFORM: 337 if (!opt_format(opt_arg(), OPT_FMT_ANY, &CAkeyformat)) 338 goto opthelp; 339 break; 340 case OPT_OUT: 341 outfile = opt_arg(); 342 break; 343 case OPT_REQ: 344 reqfile = 1; 345 break; 346 347 case OPT_DATEOPT: 348 if (!set_dateopt(&dateopt, opt_arg())) { 349 BIO_printf(bio_err, 350 "Invalid date format: %s\n", opt_arg()); 351 goto end; 352 } 353 break; 354 case OPT_COPY_EXTENSIONS: 355 if (!set_ext_copy(&ext_copy, opt_arg())) { 356 BIO_printf(bio_err, 357 "Invalid extension copy option: %s\n", opt_arg()); 358 goto end; 359 } 360 break; 361 362 case OPT_SIGOPT: 363 if (!sigopts) 364 sigopts = sk_OPENSSL_STRING_new_null(); 365 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg())) 366 goto opthelp; 367 break; 368 case OPT_VFYOPT: 369 if (!vfyopts) 370 vfyopts = sk_OPENSSL_STRING_new_null(); 371 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg())) 372 goto opthelp; 373 break; 374 case OPT_DAYS: 375 days = atoi(opt_arg()); 376 if (days < -1) { 377 BIO_printf(bio_err, "%s: -days parameter arg must be >= -1\n", 378 prog); 379 goto end; 380 } 381 break; 382 case OPT_PASSIN: 383 passinarg = opt_arg(); 384 break; 385 case OPT_EXTFILE: 386 extfile = opt_arg(); 387 break; 388 case OPT_R_CASES: 389 if (!opt_rand(o)) 390 goto end; 391 break; 392 case OPT_PROV_CASES: 393 if (!opt_provider(o)) 394 goto end; 395 break; 396 case OPT_EXTENSIONS: 397 extsect = opt_arg(); 398 break; 399 case OPT_KEY: 400 case OPT_SIGNKEY: 401 privkeyfile = opt_arg(); 402 break; 403 case OPT_CA: 404 CAfile = opt_arg(); 405 break; 406 case OPT_CAKEY: 407 CAkeyfile = opt_arg(); 408 break; 409 case OPT_CASERIAL: 410 CAserial = opt_arg(); 411 break; 412 case OPT_SET_SERIAL: 413 if (sno != NULL) { 414 BIO_printf(bio_err, "Serial number supplied twice\n"); 415 goto opthelp; 416 } 417 if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL) 418 goto opthelp; 419 break; 420 case OPT_NEW: 421 newcert = 1; 422 break; 423 case OPT_FORCE_PUBKEY: 424 pubkeyfile = opt_arg(); 425 break; 426 case OPT_SUBJ: 427 subj = opt_arg(); 428 break; 429 case OPT_ADDTRUST: 430 if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL) 431 goto end; 432 if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) { 433 BIO_printf(bio_err, "%s: Invalid trust object value %s\n", 434 prog, opt_arg()); 435 goto opthelp; 436 } 437 sk_ASN1_OBJECT_push(trust, objtmp); 438 trustout = 1; 439 break; 440 case OPT_ADDREJECT: 441 if (reject == NULL && (reject = sk_ASN1_OBJECT_new_null()) == NULL) 442 goto end; 443 if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) { 444 BIO_printf(bio_err, "%s: Invalid reject object value %s\n", 445 prog, opt_arg()); 446 goto opthelp; 447 } 448 sk_ASN1_OBJECT_push(reject, objtmp); 449 trustout = 1; 450 break; 451 case OPT_SETALIAS: 452 alias = opt_arg(); 453 trustout = 1; 454 break; 455 case OPT_CERTOPT: 456 if (!set_cert_ex(&certflag, opt_arg())) 457 goto opthelp; 458 break; 459 case OPT_NAMEOPT: 460 if (!set_nameopt(opt_arg())) 461 goto opthelp; 462 break; 463 case OPT_ENGINE: 464 e = setup_engine(opt_arg(), 0); 465 break; 466 case OPT_EMAIL: 467 email = ++num; 468 break; 469 case OPT_OCSP_URI: 470 ocsp_uri = ++num; 471 break; 472 case OPT_SERIAL: 473 serial = ++num; 474 break; 475 case OPT_NEXT_SERIAL: 476 next_serial = ++num; 477 break; 478 case OPT_MODULUS: 479 modulus = ++num; 480 break; 481 case OPT_PUBKEY: 482 print_pubkey = ++num; 483 break; 484 case OPT_X509TOREQ: 485 x509toreq = 1; 486 break; 487 case OPT_TEXT: 488 text = ++num; 489 break; 490 case OPT_SUBJECT: 491 subject = ++num; 492 break; 493 case OPT_ISSUER: 494 issuer = ++num; 495 break; 496 case OPT_FINGERPRINT: 497 fingerprint = ++num; 498 break; 499 case OPT_HASH: 500 subject_hash = ++num; 501 break; 502 case OPT_ISSUER_HASH: 503 issuer_hash = ++num; 504 break; 505 case OPT_PURPOSE: 506 pprint = ++num; 507 break; 508 case OPT_STARTDATE: 509 startdate = ++num; 510 break; 511 case OPT_ENDDATE: 512 enddate = ++num; 513 break; 514 case OPT_NOOUT: 515 noout = ++num; 516 break; 517 case OPT_EXT: 518 ext = ++num; 519 ext_names = opt_arg(); 520 break; 521 case OPT_NOCERT: 522 nocert = 1; 523 break; 524 case OPT_TRUSTOUT: 525 trustout = 1; 526 break; 527 case OPT_CLRTRUST: 528 clrtrust = ++num; 529 break; 530 case OPT_CLRREJECT: 531 clrreject = ++num; 532 break; 533 case OPT_ALIAS: 534 aliasout = ++num; 535 break; 536 case OPT_CACREATESERIAL: 537 CA_createserial = 1; 538 break; 539 case OPT_CLREXT: 540 clrext = 1; 541 break; 542 case OPT_OCSPID: 543 ocspid = ++num; 544 break; 545 case OPT_BADSIG: 546 badsig = 1; 547 break; 548 #ifndef OPENSSL_NO_MD5 549 case OPT_SUBJECT_HASH_OLD: 550 subject_hash_old = ++num; 551 break; 552 case OPT_ISSUER_HASH_OLD: 553 issuer_hash_old = ++num; 554 break; 555 #else 556 case OPT_SUBJECT_HASH_OLD: 557 case OPT_ISSUER_HASH_OLD: 558 break; 559 #endif 560 case OPT_DATES: 561 startdate = ++num; 562 enddate = ++num; 563 break; 564 case OPT_CHECKEND: 565 checkend = 1; 566 { 567 ossl_intmax_t temp = 0; 568 if (!opt_intmax(opt_arg(), &temp)) 569 goto opthelp; 570 checkoffset = (time_t)temp; 571 if ((ossl_intmax_t)checkoffset != temp) { 572 BIO_printf(bio_err, "%s: Checkend time out of range %s\n", 573 prog, opt_arg()); 574 goto opthelp; 575 } 576 } 577 break; 578 case OPT_CHECKHOST: 579 checkhost = opt_arg(); 580 break; 581 case OPT_CHECKEMAIL: 582 checkemail = opt_arg(); 583 break; 584 case OPT_CHECKIP: 585 checkip = opt_arg(); 586 break; 587 case OPT_PRESERVE_DATES: 588 preserve_dates = 1; 589 break; 590 case OPT_MD: 591 digest = opt_unknown(); 592 break; 593 } 594 } 595 596 /* No extra arguments. */ 597 argc = opt_num_rest(); 598 if (argc != 0) 599 goto opthelp; 600 601 if (!app_RAND_load()) 602 goto end; 603 604 if (preserve_dates && days != UNSET_DAYS) { 605 BIO_printf(bio_err, "Cannot use -preserve_dates with -days option\n"); 606 goto end; 607 } 608 if (days == UNSET_DAYS) 609 days = DEFAULT_DAYS; 610 611 if (!app_passwd(passinarg, NULL, &passin, NULL)) { 612 BIO_printf(bio_err, "Error getting password\n"); 613 goto end; 614 } 615 616 if (!X509_STORE_set_default_paths_ex(ctx, app_get0_libctx(), 617 app_get0_propq())) 618 goto end; 619 620 if (newcert && infile != NULL) { 621 BIO_printf(bio_err, "The -in option cannot be used with -new\n"); 622 goto end; 623 } 624 if (newcert && reqfile) { 625 BIO_printf(bio_err, 626 "The -req option cannot be used with -new\n"); 627 goto end; 628 } 629 if (privkeyfile != NULL) { 630 privkey = load_key(privkeyfile, keyformat, 0, passin, e, "private key"); 631 if (privkey == NULL) 632 goto end; 633 } 634 if (pubkeyfile != NULL) { 635 if ((pubkey = load_pubkey(pubkeyfile, keyformat, 0, NULL, e, 636 "explicitly set public key")) == NULL) 637 goto end; 638 } 639 640 if (newcert) { 641 if (subj == NULL) { 642 BIO_printf(bio_err, 643 "The -new option requires a subject to be set using -subj\n"); 644 goto end; 645 } 646 if (privkeyfile == NULL && pubkeyfile == NULL) { 647 BIO_printf(bio_err, 648 "The -new option requires using the -key or -force_pubkey option\n"); 649 goto end; 650 } 651 } 652 if (subj != NULL 653 && (fsubj = parse_name(subj, chtype, multirdn, "subject")) == NULL) 654 goto end; 655 656 if (CAkeyfile == NULL) 657 CAkeyfile = CAfile; 658 if (CAfile != NULL) { 659 if (privkeyfile != NULL) { 660 BIO_printf(bio_err, "Cannot use both -key/-signkey and -CA option\n"); 661 goto end; 662 } 663 } else { 664 #define WARN_NO_CA(opt) BIO_printf(bio_err, \ 665 "Warning: ignoring " opt " option since -CA option is not given\n"); 666 if (CAkeyfile != NULL) 667 WARN_NO_CA("-CAkey"); 668 if (CAkeyformat != FORMAT_UNDEF) 669 WARN_NO_CA("-CAkeyform"); 670 if (CAformat != FORMAT_UNDEF) 671 WARN_NO_CA("-CAform"); 672 if (CAserial != NULL) 673 WARN_NO_CA("-CAserial"); 674 if (CA_createserial) 675 WARN_NO_CA("-CAcreateserial"); 676 } 677 678 if (extfile == NULL) { 679 if (extsect != NULL) 680 BIO_printf(bio_err, 681 "Warning: ignoring -extensions option without -extfile\n"); 682 } else { 683 X509V3_CTX ctx2; 684 685 if ((extconf = app_load_config(extfile)) == NULL) 686 goto end; 687 if (extsect == NULL) { 688 extsect = NCONF_get_string(extconf, "default", "extensions"); 689 if (extsect == NULL) { 690 ERR_clear_error(); 691 extsect = "default"; 692 } 693 } 694 X509V3_set_ctx_test(&ctx2); 695 X509V3_set_nconf(&ctx2, extconf); 696 if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) { 697 BIO_printf(bio_err, 698 "Error checking extension section %s\n", extsect); 699 goto end; 700 } 701 } 702 703 if (reqfile) { 704 req = load_csr(infile, informat, "certificate request input"); 705 if (req == NULL) 706 goto end; 707 708 if ((pkey = X509_REQ_get0_pubkey(req)) == NULL) { 709 BIO_printf(bio_err, "Error unpacking public key from CSR\n"); 710 goto end; 711 } 712 i = do_X509_REQ_verify(req, pkey, vfyopts); 713 if (i <= 0) { 714 BIO_printf(bio_err, i < 0 715 ? "Error while verifying certificate request self-signature\n" 716 : "Certificate request self-signature did not match the contents\n"); 717 goto end; 718 } 719 BIO_printf(bio_err, "Certificate request self-signature ok\n"); 720 721 print_name(bio_err, "subject=", X509_REQ_get_subject_name(req)); 722 } else if (!x509toreq && ext_copy != EXT_COPY_UNSET) { 723 BIO_printf(bio_err, "Warning: ignoring -copy_extensions since neither -x509toreq nor -req is given\n"); 724 } 725 726 if (reqfile || newcert) { 727 if (preserve_dates) 728 BIO_printf(bio_err, 729 "Warning: ignoring -preserve_dates option with -req or -new\n"); 730 preserve_dates = 0; 731 if (privkeyfile == NULL && CAkeyfile == NULL) { 732 BIO_printf(bio_err, 733 "We need a private key to sign with, use -key or -CAkey or -CA with private key\n"); 734 goto end; 735 } 736 if ((x = X509_new_ex(app_get0_libctx(), app_get0_propq())) == NULL) 737 goto end; 738 if (CAfile == NULL && sno == NULL) { 739 sno = ASN1_INTEGER_new(); 740 if (sno == NULL || !rand_serial(NULL, sno)) 741 goto end; 742 } 743 if (req != NULL && ext_copy != EXT_COPY_UNSET) { 744 if (clrext && ext_copy != EXT_COPY_NONE) { 745 BIO_printf(bio_err, "Must not use -clrext together with -copy_extensions\n"); 746 goto end; 747 } else if (!copy_extensions(x, req, ext_copy)) { 748 BIO_printf(bio_err, "Error copying extensions from request\n"); 749 goto end; 750 } 751 } 752 } else { 753 x = load_cert_pass(infile, informat, 1, passin, "certificate"); 754 if (x == NULL) 755 goto end; 756 } 757 if ((fsubj != NULL || req != NULL) 758 && !X509_set_subject_name(x, fsubj != NULL ? fsubj : 759 X509_REQ_get_subject_name(req))) 760 goto end; 761 if ((pubkey != NULL || privkey != NULL || req != NULL) 762 && !X509_set_pubkey(x, pubkey != NULL ? pubkey : 763 privkey != NULL ? privkey : 764 X509_REQ_get0_pubkey(req))) 765 goto end; 766 767 if (CAfile != NULL) { 768 xca = load_cert_pass(CAfile, CAformat, 1, passin, "CA certificate"); 769 if (xca == NULL) 770 goto end; 771 } 772 773 out = bio_open_default(outfile, 'w', outformat); 774 if (out == NULL) 775 goto end; 776 777 if (!noout || text || next_serial) 778 OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3"); 779 780 if (alias) 781 X509_alias_set1(x, (unsigned char *)alias, -1); 782 783 if (clrtrust) 784 X509_trust_clear(x); 785 if (clrreject) 786 X509_reject_clear(x); 787 788 if (trust != NULL) { 789 for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) 790 X509_add1_trust_object(x, sk_ASN1_OBJECT_value(trust, i)); 791 } 792 793 if (reject != NULL) { 794 for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) 795 X509_add1_reject_object(x, sk_ASN1_OBJECT_value(reject, i)); 796 } 797 798 if (clrext && ext_names != NULL) 799 BIO_printf(bio_err, "Warning: Ignoring -ext since -clrext is given\n"); 800 for (i = X509_get_ext_count(x) - 1; i >= 0; i--) { 801 X509_EXTENSION *ex = X509_get_ext(x, i); 802 const char *sn = OBJ_nid2sn(OBJ_obj2nid(X509_EXTENSION_get_object(ex))); 803 804 if (clrext || (ext_names != NULL && strstr(ext_names, sn) == NULL)) 805 X509_EXTENSION_free(X509_delete_ext(x, i)); 806 } 807 808 issuer_cert = x; 809 if (CAfile != NULL) { 810 issuer_cert = xca; 811 if (sno == NULL) 812 sno = x509_load_serial(CAfile, CAserial, CA_createserial); 813 if (sno == NULL) 814 goto end; 815 if (!x509toreq && !reqfile && !newcert && !self_signed(ctx, x)) 816 goto end; 817 } 818 819 if (sno != NULL && !X509_set_serialNumber(x, sno)) 820 goto end; 821 822 if (reqfile || newcert || privkey != NULL || CAfile != NULL) { 823 if (!preserve_dates && !set_cert_times(x, NULL, NULL, days)) 824 goto end; 825 if (!X509_set_issuer_name(x, X509_get_subject_name(issuer_cert))) 826 goto end; 827 } 828 829 X509V3_set_ctx(&ext_ctx, issuer_cert, x, NULL, NULL, X509V3_CTX_REPLACE); 830 /* prepare fallback for AKID, but only if issuer cert equals subject cert */ 831 if (CAfile == NULL) { 832 if (!X509V3_set_issuer_pkey(&ext_ctx, privkey)) 833 goto end; 834 } 835 if (extconf != NULL && !x509toreq) { 836 X509V3_set_nconf(&ext_ctx, extconf); 837 if (!X509V3_EXT_add_nconf(extconf, &ext_ctx, extsect, x)) { 838 BIO_printf(bio_err, 839 "Error adding extensions from section %s\n", extsect); 840 goto end; 841 } 842 } 843 844 /* At this point the contents of the certificate x have been finished. */ 845 846 pkey = X509_get0_pubkey(x); 847 if ((print_pubkey != 0 || modulus != 0) && pkey == NULL) { 848 BIO_printf(bio_err, "Error getting public key\n"); 849 goto end; 850 } 851 852 if (x509toreq) { /* also works in conjunction with -req */ 853 if (privkey == NULL) { 854 BIO_printf(bio_err, "Must specify request signing key using -key\n"); 855 goto end; 856 } 857 if (clrext && ext_copy != EXT_COPY_NONE) { 858 BIO_printf(bio_err, "Must not use -clrext together with -copy_extensions\n"); 859 goto end; 860 } 861 if ((rq = x509_to_req(x, ext_copy, ext_names)) == NULL) 862 goto end; 863 if (extconf != NULL) { 864 X509V3_set_nconf(&ext_ctx, extconf); 865 if (!X509V3_EXT_REQ_add_nconf(extconf, &ext_ctx, extsect, rq)) { 866 BIO_printf(bio_err, 867 "Error adding request extensions from section %s\n", extsect); 868 goto end; 869 } 870 } 871 if (!do_X509_REQ_sign(rq, privkey, digest, sigopts)) 872 goto end; 873 if (!noout) { 874 if (outformat == FORMAT_ASN1) { 875 X509_REQ_print_ex(out, rq, get_nameopt(), X509_FLAG_COMPAT); 876 i = i2d_X509_bio(out, x); 877 } else { 878 i = PEM_write_bio_X509_REQ(out, rq); 879 } 880 if (!i) { 881 BIO_printf(bio_err, 882 "Unable to write certificate request\n"); 883 goto end; 884 } 885 } 886 noout = 1; 887 } else if (privkey != NULL) { 888 if (!do_X509_sign(x, privkey, digest, sigopts, &ext_ctx)) 889 goto end; 890 } else if (CAfile != NULL) { 891 if ((CAkey = load_key(CAkeyfile, CAkeyformat, 892 0, passin, e, "CA private key")) == NULL) 893 goto end; 894 if (!X509_check_private_key(xca, CAkey)) { 895 BIO_printf(bio_err, 896 "CA certificate and CA private key do not match\n"); 897 goto end; 898 } 899 900 if (!do_X509_sign(x, CAkey, digest, sigopts, &ext_ctx)) 901 goto end; 902 } 903 if (badsig) { 904 const ASN1_BIT_STRING *signature; 905 906 X509_get0_signature(&signature, NULL, x); 907 corrupt_signature(signature); 908 } 909 910 /* Process print options in the given order, as indicated by index i */ 911 for (i = 1; i <= num; i++) { 912 if (i == issuer) { 913 print_name(out, "issuer=", X509_get_issuer_name(x)); 914 } else if (i == subject) { 915 print_name(out, "subject=", X509_get_subject_name(x)); 916 } else if (i == serial) { 917 BIO_printf(out, "serial="); 918 i2a_ASN1_INTEGER(out, X509_get0_serialNumber(x)); 919 BIO_printf(out, "\n"); 920 } else if (i == next_serial) { 921 ASN1_INTEGER *ser; 922 BIGNUM *bnser = ASN1_INTEGER_to_BN(X509_get0_serialNumber(x), NULL); 923 924 if (bnser == NULL) 925 goto end; 926 if (!BN_add_word(bnser, 1) 927 || (ser = BN_to_ASN1_INTEGER(bnser, NULL)) == NULL) { 928 BN_free(bnser); 929 goto end; 930 } 931 BN_free(bnser); 932 i2a_ASN1_INTEGER(out, ser); 933 ASN1_INTEGER_free(ser); 934 BIO_puts(out, "\n"); 935 } else if (i == email || i == ocsp_uri) { 936 STACK_OF(OPENSSL_STRING) *emlst = 937 i == email ? X509_get1_email(x) : X509_get1_ocsp(x); 938 939 for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++) 940 BIO_printf(out, "%s\n", sk_OPENSSL_STRING_value(emlst, j)); 941 X509_email_free(emlst); 942 } else if (i == aliasout) { 943 unsigned char *alstr = X509_alias_get0(x, NULL); 944 945 if (alstr) 946 BIO_printf(out, "%s\n", alstr); 947 else 948 BIO_puts(out, "<No Alias>\n"); 949 } else if (i == subject_hash) { 950 BIO_printf(out, "%08lx\n", X509_subject_name_hash(x)); 951 #ifndef OPENSSL_NO_MD5 952 } else if (i == subject_hash_old) { 953 BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x)); 954 #endif 955 } else if (i == issuer_hash) { 956 BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x)); 957 #ifndef OPENSSL_NO_MD5 958 } else if (i == issuer_hash_old) { 959 BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x)); 960 #endif 961 } else if (i == pprint) { 962 BIO_printf(out, "Certificate purposes:\n"); 963 for (j = 0; j < X509_PURPOSE_get_count(); j++) 964 purpose_print(out, x, X509_PURPOSE_get0(j)); 965 } else if (i == modulus) { 966 BIO_printf(out, "Modulus="); 967 if (EVP_PKEY_is_a(pkey, "RSA") || EVP_PKEY_is_a(pkey, "RSA-PSS")) { 968 BIGNUM *n = NULL; 969 970 /* Every RSA key has an 'n' */ 971 EVP_PKEY_get_bn_param(pkey, "n", &n); 972 BN_print(out, n); 973 BN_free(n); 974 } else if (EVP_PKEY_is_a(pkey, "DSA")) { 975 BIGNUM *dsapub = NULL; 976 977 /* Every DSA key has a 'pub' */ 978 EVP_PKEY_get_bn_param(pkey, "pub", &dsapub); 979 BN_print(out, dsapub); 980 BN_free(dsapub); 981 } else { 982 BIO_printf(out, "No modulus for this public key type"); 983 } 984 BIO_printf(out, "\n"); 985 } else if (i == print_pubkey) { 986 PEM_write_bio_PUBKEY(out, pkey); 987 } else if (i == text) { 988 X509_print_ex(out, x, get_nameopt(), certflag); 989 } else if (i == startdate) { 990 BIO_puts(out, "notBefore="); 991 ASN1_TIME_print_ex(out, X509_get0_notBefore(x), dateopt); 992 BIO_puts(out, "\n"); 993 } else if (i == enddate) { 994 BIO_puts(out, "notAfter="); 995 ASN1_TIME_print_ex(out, X509_get0_notAfter(x), dateopt); 996 BIO_puts(out, "\n"); 997 } else if (i == fingerprint) { 998 unsigned int n; 999 unsigned char md[EVP_MAX_MD_SIZE]; 1000 const char *fdigname = digest; 1001 EVP_MD *fdig; 1002 int digres; 1003 1004 if (fdigname == NULL) 1005 fdigname = "SHA1"; 1006 1007 if ((fdig = EVP_MD_fetch(app_get0_libctx(), fdigname, 1008 app_get0_propq())) == NULL) { 1009 BIO_printf(bio_err, "Unknown digest\n"); 1010 goto end; 1011 } 1012 digres = X509_digest(x, fdig, md, &n); 1013 EVP_MD_free(fdig); 1014 if (!digres) { 1015 BIO_printf(bio_err, "Out of memory\n"); 1016 goto end; 1017 } 1018 1019 BIO_printf(out, "%s Fingerprint=", fdigname); 1020 for (j = 0; j < (int)n; j++) 1021 BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n) ? '\n' : ':'); 1022 } else if (i == ocspid) { 1023 X509_ocspid_print(out, x); 1024 } else if (i == ext) { 1025 print_x509v3_exts(out, x, ext_names); 1026 } 1027 } 1028 1029 if (checkend) { 1030 time_t tcheck = time(NULL) + checkoffset; 1031 1032 ret = X509_cmp_time(X509_get0_notAfter(x), &tcheck) < 0; 1033 if (ret) 1034 BIO_printf(out, "Certificate will expire\n"); 1035 else 1036 BIO_printf(out, "Certificate will not expire\n"); 1037 goto end; 1038 } 1039 1040 print_cert_checks(out, x, checkhost, checkemail, checkip); 1041 1042 if (noout || nocert) { 1043 ret = 0; 1044 goto end; 1045 } 1046 1047 if (outformat == FORMAT_ASN1) { 1048 i = i2d_X509_bio(out, x); 1049 } else if (outformat == FORMAT_PEM) { 1050 if (trustout) 1051 i = PEM_write_bio_X509_AUX(out, x); 1052 else 1053 i = PEM_write_bio_X509(out, x); 1054 } else { 1055 BIO_printf(bio_err, "Bad output format specified for outfile\n"); 1056 goto end; 1057 } 1058 if (!i) { 1059 BIO_printf(bio_err, "Unable to write certificate\n"); 1060 goto end; 1061 } 1062 ret = 0; 1063 1064 end: 1065 if (ret != 0) 1066 ERR_print_errors(bio_err); 1067 NCONF_free(extconf); 1068 BIO_free_all(out); 1069 X509_STORE_free(ctx); 1070 X509_NAME_free(fsubj); 1071 X509_REQ_free(req); 1072 X509_free(x); 1073 X509_free(xca); 1074 EVP_PKEY_free(privkey); 1075 EVP_PKEY_free(CAkey); 1076 EVP_PKEY_free(pubkey); 1077 sk_OPENSSL_STRING_free(sigopts); 1078 sk_OPENSSL_STRING_free(vfyopts); 1079 X509_REQ_free(rq); 1080 ASN1_INTEGER_free(sno); 1081 sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free); 1082 sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free); 1083 release_engine(e); 1084 clear_free(passin); 1085 return ret; 1086 } 1087 1088 static ASN1_INTEGER *x509_load_serial(const char *CAfile, 1089 const char *serialfile, int create) 1090 { 1091 char *buf = NULL; 1092 ASN1_INTEGER *bs = NULL; 1093 BIGNUM *serial = NULL; 1094 int defaultfile = 0, file_exists; 1095 1096 if (serialfile == NULL) { 1097 const char *p = strrchr(CAfile, '.'); 1098 size_t len = p != NULL ? (size_t)(p - CAfile) : strlen(CAfile); 1099 1100 buf = app_malloc(len + sizeof(POSTFIX), "serial# buffer"); 1101 memcpy(buf, CAfile, len); 1102 memcpy(buf + len, POSTFIX, sizeof(POSTFIX)); 1103 serialfile = buf; 1104 defaultfile = 1; 1105 } 1106 1107 serial = load_serial(serialfile, &file_exists, create || defaultfile, NULL); 1108 if (serial == NULL) 1109 goto end; 1110 1111 if (!BN_add_word(serial, 1)) { 1112 BIO_printf(bio_err, "Serial number increment failure\n"); 1113 goto end; 1114 } 1115 1116 if (file_exists || create) 1117 save_serial(serialfile, NULL, serial, &bs); 1118 else 1119 bs = BN_to_ASN1_INTEGER(serial, NULL); 1120 1121 end: 1122 OPENSSL_free(buf); 1123 BN_free(serial); 1124 return bs; 1125 } 1126 1127 static int callb(int ok, X509_STORE_CTX *ctx) 1128 { 1129 int err; 1130 X509 *err_cert; 1131 1132 /* 1133 * It is ok to use a self-signed certificate. This case will catch both 1134 * the initial ok == 0 and the final ok == 1 calls to this function. 1135 */ 1136 err = X509_STORE_CTX_get_error(ctx); 1137 if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) 1138 return 1; 1139 1140 /* 1141 * BAD we should have gotten an error. Normally if everything worked 1142 * X509_STORE_CTX_get_error(ctx) will still be set to 1143 * DEPTH_ZERO_SELF_.... 1144 */ 1145 if (ok) { 1146 BIO_printf(bio_err, 1147 "Error with certificate to be certified - should be self-signed\n"); 1148 return 0; 1149 } else { 1150 err_cert = X509_STORE_CTX_get_current_cert(ctx); 1151 print_name(bio_err, "subject=", X509_get_subject_name(err_cert)); 1152 BIO_printf(bio_err, 1153 "Error with certificate - error %d at depth %d\n%s\n", err, 1154 X509_STORE_CTX_get_error_depth(ctx), 1155 X509_verify_cert_error_string(err)); 1156 return 1; 1157 } 1158 } 1159 1160 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt) 1161 { 1162 int id, i, idret; 1163 const char *pname; 1164 id = X509_PURPOSE_get_id(pt); 1165 pname = X509_PURPOSE_get0_name(pt); 1166 for (i = 0; i < 2; i++) { 1167 idret = X509_check_purpose(cert, id, i); 1168 BIO_printf(bio, "%s%s : ", pname, i ? " CA" : ""); 1169 if (idret == 1) 1170 BIO_printf(bio, "Yes\n"); 1171 else if (idret == 0) 1172 BIO_printf(bio, "No\n"); 1173 else 1174 BIO_printf(bio, "Yes (WARNING code=%d)\n", idret); 1175 } 1176 return 1; 1177 } 1178 1179 static int parse_ext_names(char *names, const char **result) 1180 { 1181 char *p, *q; 1182 int cnt = 0, len = 0; 1183 1184 p = q = names; 1185 len = strlen(names); 1186 1187 while (q - names <= len) { 1188 if (*q != ',' && *q != '\0') { 1189 q++; 1190 continue; 1191 } 1192 if (p != q) { 1193 /* found */ 1194 if (result != NULL) { 1195 result[cnt] = p; 1196 *q = '\0'; 1197 } 1198 cnt++; 1199 } 1200 p = ++q; 1201 } 1202 1203 return cnt; 1204 } 1205 1206 static int print_x509v3_exts(BIO *bio, X509 *x, const char *ext_names) 1207 { 1208 const STACK_OF(X509_EXTENSION) *exts = NULL; 1209 STACK_OF(X509_EXTENSION) *exts2 = NULL; 1210 X509_EXTENSION *ext = NULL; 1211 ASN1_OBJECT *obj; 1212 int i, j, ret = 0, num, nn = 0; 1213 const char *sn, **names = NULL; 1214 char *tmp_ext_names = NULL; 1215 1216 exts = X509_get0_extensions(x); 1217 if ((num = sk_X509_EXTENSION_num(exts)) <= 0) { 1218 BIO_printf(bio_err, "No extensions in certificate\n"); 1219 ret = 1; 1220 goto end; 1221 } 1222 1223 /* parse comma separated ext name string */ 1224 if ((tmp_ext_names = OPENSSL_strdup(ext_names)) == NULL) 1225 goto end; 1226 if ((nn = parse_ext_names(tmp_ext_names, NULL)) == 0) { 1227 BIO_printf(bio, "Invalid extension names: %s\n", ext_names); 1228 goto end; 1229 } 1230 if ((names = OPENSSL_malloc(sizeof(char *) * nn)) == NULL) 1231 goto end; 1232 parse_ext_names(tmp_ext_names, names); 1233 1234 for (i = 0; i < num; i++) { 1235 ext = sk_X509_EXTENSION_value(exts, i); 1236 1237 /* check if this ext is what we want */ 1238 obj = X509_EXTENSION_get_object(ext); 1239 sn = OBJ_nid2sn(OBJ_obj2nid(obj)); 1240 if (sn == NULL || strcmp(sn, "UNDEF") == 0) 1241 continue; 1242 1243 for (j = 0; j < nn; j++) { 1244 if (strcmp(sn, names[j]) == 0) { 1245 /* push the extension into a new stack */ 1246 if (exts2 == NULL 1247 && (exts2 = sk_X509_EXTENSION_new_null()) == NULL) 1248 goto end; 1249 if (!sk_X509_EXTENSION_push(exts2, ext)) 1250 goto end; 1251 } 1252 } 1253 } 1254 1255 if (!sk_X509_EXTENSION_num(exts2)) { 1256 BIO_printf(bio, "No extensions matched with %s\n", ext_names); 1257 ret = 1; 1258 goto end; 1259 } 1260 1261 ret = X509V3_extensions_print(bio, NULL, exts2, 0, 0); 1262 end: 1263 sk_X509_EXTENSION_free(exts2); 1264 OPENSSL_free(names); 1265 OPENSSL_free(tmp_ext_names); 1266 return ret; 1267 } 1268