1 /* 2 * Copyright 1995-2024 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/err.h> 17 #include <openssl/x509.h> 18 #include <openssl/x509v3.h> 19 #include <openssl/pem.h> 20 21 typedef enum OPTION_choice { 22 OPT_COMMON, 23 OPT_INFORM, OPT_IN, OPT_OUTFORM, OPT_OUT, OPT_KEYFORM, OPT_KEY, 24 OPT_ISSUER, OPT_LASTUPDATE, OPT_NEXTUPDATE, OPT_FINGERPRINT, 25 OPT_CRLNUMBER, OPT_BADSIG, OPT_GENDELTA, OPT_CAPATH, OPT_CAFILE, OPT_CASTORE, 26 OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE, OPT_VERIFY, OPT_DATEOPT, OPT_TEXT, OPT_HASH, 27 OPT_HASH_OLD, OPT_NOOUT, OPT_NAMEOPT, OPT_MD, OPT_PROV_ENUM 28 } OPTION_CHOICE; 29 30 const OPTIONS crl_options[] = { 31 OPT_SECTION("General"), 32 {"help", OPT_HELP, '-', "Display this summary"}, 33 {"verify", OPT_VERIFY, '-', "Verify CRL signature"}, 34 35 OPT_SECTION("Input"), 36 {"in", OPT_IN, '<', "Input file - default stdin"}, 37 {"inform", OPT_INFORM, 'F', "CRL input format (DER or PEM); has no effect"}, 38 {"key", OPT_KEY, '<', "CRL signing Private key to use"}, 39 {"keyform", OPT_KEYFORM, 'F', "Private key file format (DER/PEM/P12); has no effect"}, 40 41 OPT_SECTION("Output"), 42 {"out", OPT_OUT, '>', "output file - default stdout"}, 43 {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"}, 44 {"dateopt", OPT_DATEOPT, 's', "Datetime format used for printing. (rfc_822/iso_8601). Default is rfc_822."}, 45 {"text", OPT_TEXT, '-', "Print out a text format version"}, 46 {"hash", OPT_HASH, '-', "Print hash value"}, 47 #ifndef OPENSSL_NO_MD5 48 {"hash_old", OPT_HASH_OLD, '-', "Print old-style (MD5) hash value"}, 49 #endif 50 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"}, 51 {"", OPT_MD, '-', "Any supported digest"}, 52 53 OPT_SECTION("CRL"), 54 {"issuer", OPT_ISSUER, '-', "Print issuer DN"}, 55 {"lastupdate", OPT_LASTUPDATE, '-', "Set lastUpdate field"}, 56 {"nextupdate", OPT_NEXTUPDATE, '-', "Set nextUpdate field"}, 57 {"noout", OPT_NOOUT, '-', "No CRL output"}, 58 {"fingerprint", OPT_FINGERPRINT, '-', "Print the crl fingerprint"}, 59 {"crlnumber", OPT_CRLNUMBER, '-', "Print CRL number"}, 60 {"badsig", OPT_BADSIG, '-', "Corrupt last byte of loaded CRL signature (for test)" }, 61 {"gendelta", OPT_GENDELTA, '<', "Other CRL to compare/diff to the Input one"}, 62 63 OPT_SECTION("Certificate"), 64 {"CApath", OPT_CAPATH, '/', "Verify CRL using certificates in dir"}, 65 {"CAfile", OPT_CAFILE, '<', "Verify CRL using certificates in file name"}, 66 {"CAstore", OPT_CASTORE, ':', "Verify CRL using certificates in store URI"}, 67 {"no-CAfile", OPT_NOCAFILE, '-', 68 "Do not load the default certificates file"}, 69 {"no-CApath", OPT_NOCAPATH, '-', 70 "Do not load certificates from the default certificates directory"}, 71 {"no-CAstore", OPT_NOCASTORE, '-', 72 "Do not load certificates from the default certificates store"}, 73 OPT_PROV_OPTIONS, 74 {NULL} 75 }; 76 77 int crl_main(int argc, char **argv) 78 { 79 X509_CRL *x = NULL; 80 BIO *out = NULL; 81 X509_STORE *store = NULL; 82 X509_STORE_CTX *ctx = NULL; 83 X509_LOOKUP *lookup = NULL; 84 X509_OBJECT *xobj = NULL; 85 EVP_PKEY *pkey; 86 EVP_MD *digest = (EVP_MD *)EVP_sha1(); 87 char *infile = NULL, *outfile = NULL, *crldiff = NULL, *keyfile = NULL; 88 char *digestname = NULL; 89 const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL, *prog; 90 OPTION_CHOICE o; 91 int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout = 0; 92 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyformat = FORMAT_UNDEF; 93 int ret = 1, num = 0, badsig = 0, fingerprint = 0, crlnumber = 0; 94 int text = 0, do_ver = 0, noCAfile = 0, noCApath = 0, noCAstore = 0; 95 unsigned long dateopt = ASN1_DTFLGS_RFC822; 96 int i; 97 #ifndef OPENSSL_NO_MD5 98 int hash_old = 0; 99 #endif 100 101 opt_set_unknown_name("digest"); 102 prog = opt_init(argc, argv, crl_options); 103 while ((o = opt_next()) != OPT_EOF) { 104 switch (o) { 105 case OPT_EOF: 106 case OPT_ERR: 107 opthelp: 108 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 109 goto end; 110 case OPT_HELP: 111 opt_help(crl_options); 112 ret = 0; 113 goto end; 114 case OPT_INFORM: 115 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) 116 goto opthelp; 117 break; 118 case OPT_IN: 119 infile = opt_arg(); 120 break; 121 case OPT_OUTFORM: 122 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) 123 goto opthelp; 124 break; 125 case OPT_OUT: 126 outfile = opt_arg(); 127 break; 128 case OPT_KEYFORM: 129 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyformat)) 130 goto opthelp; 131 break; 132 case OPT_KEY: 133 keyfile = opt_arg(); 134 break; 135 case OPT_GENDELTA: 136 crldiff = opt_arg(); 137 break; 138 case OPT_CAPATH: 139 CApath = opt_arg(); 140 do_ver = 1; 141 break; 142 case OPT_CAFILE: 143 CAfile = opt_arg(); 144 do_ver = 1; 145 break; 146 case OPT_CASTORE: 147 CAstore = opt_arg(); 148 do_ver = 1; 149 break; 150 case OPT_NOCAPATH: 151 noCApath = 1; 152 break; 153 case OPT_NOCAFILE: 154 noCAfile = 1; 155 break; 156 case OPT_NOCASTORE: 157 noCAstore = 1; 158 break; 159 case OPT_HASH_OLD: 160 #ifndef OPENSSL_NO_MD5 161 hash_old = ++num; 162 #endif 163 break; 164 case OPT_VERIFY: 165 do_ver = 1; 166 break; 167 case OPT_DATEOPT: 168 if (!set_dateopt(&dateopt, opt_arg())) 169 goto opthelp; 170 break; 171 case OPT_TEXT: 172 text = 1; 173 break; 174 case OPT_HASH: 175 hash = ++num; 176 break; 177 case OPT_ISSUER: 178 issuer = ++num; 179 break; 180 case OPT_LASTUPDATE: 181 lastupdate = ++num; 182 break; 183 case OPT_NEXTUPDATE: 184 nextupdate = ++num; 185 break; 186 case OPT_NOOUT: 187 noout = 1; 188 break; 189 case OPT_FINGERPRINT: 190 fingerprint = ++num; 191 break; 192 case OPT_CRLNUMBER: 193 crlnumber = ++num; 194 break; 195 case OPT_BADSIG: 196 badsig = 1; 197 break; 198 case OPT_NAMEOPT: 199 if (!set_nameopt(opt_arg())) 200 goto opthelp; 201 break; 202 case OPT_MD: 203 digestname = opt_unknown(); 204 break; 205 case OPT_PROV_CASES: 206 if (!opt_provider(o)) 207 goto end; 208 break; 209 } 210 } 211 212 /* No remaining args. */ 213 if (!opt_check_rest_arg(NULL)) 214 goto opthelp; 215 216 if (!opt_md(digestname, &digest)) 217 goto opthelp; 218 x = load_crl(infile, informat, 1, "CRL"); 219 if (x == NULL) 220 goto end; 221 222 if (do_ver) { 223 if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath, 224 CAstore, noCAstore)) == NULL) 225 goto end; 226 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file()); 227 if (lookup == NULL) 228 goto end; 229 ctx = X509_STORE_CTX_new(); 230 if (ctx == NULL || !X509_STORE_CTX_init(ctx, store, NULL, NULL)) { 231 BIO_printf(bio_err, "Error initialising X509 store\n"); 232 goto end; 233 } 234 235 xobj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509, 236 X509_CRL_get_issuer(x)); 237 if (xobj == NULL) { 238 BIO_printf(bio_err, "Error getting CRL issuer certificate\n"); 239 goto end; 240 } 241 pkey = X509_get_pubkey(X509_OBJECT_get0_X509(xobj)); 242 X509_OBJECT_free(xobj); 243 if (pkey == NULL) { 244 BIO_printf(bio_err, "Error getting CRL issuer public key\n"); 245 goto end; 246 } 247 i = X509_CRL_verify(x, pkey); 248 EVP_PKEY_free(pkey); 249 if (i < 0) 250 goto end; 251 if (i == 0) { 252 BIO_printf(bio_err, "verify failure\n"); 253 goto end; 254 } else 255 BIO_printf(bio_err, "verify OK\n"); 256 } 257 258 if (crldiff != NULL) { 259 X509_CRL *newcrl, *delta; 260 if (!keyfile) { 261 BIO_puts(bio_err, "Missing CRL signing key\n"); 262 goto end; 263 } 264 newcrl = load_crl(crldiff, informat, 0, "other CRL"); 265 if (!newcrl) 266 goto end; 267 pkey = load_key(keyfile, keyformat, 0, NULL, NULL, "CRL signing key"); 268 if (pkey == NULL) { 269 X509_CRL_free(newcrl); 270 goto end; 271 } 272 delta = X509_CRL_diff(x, newcrl, pkey, digest, 0); 273 X509_CRL_free(newcrl); 274 EVP_PKEY_free(pkey); 275 if (delta) { 276 X509_CRL_free(x); 277 x = delta; 278 } else { 279 BIO_puts(bio_err, "Error creating delta CRL\n"); 280 goto end; 281 } 282 } 283 284 if (badsig) { 285 const ASN1_BIT_STRING *sig; 286 287 X509_CRL_get0_signature(x, &sig, NULL); 288 corrupt_signature(sig); 289 } 290 291 if (num) { 292 for (i = 1; i <= num; i++) { 293 if (issuer == i) { 294 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x)); 295 } 296 if (crlnumber == i) { 297 ASN1_INTEGER *crlnum; 298 299 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL); 300 BIO_printf(bio_out, "crlNumber="); 301 if (crlnum) { 302 BIO_puts(bio_out, "0x"); 303 i2a_ASN1_INTEGER(bio_out, crlnum); 304 ASN1_INTEGER_free(crlnum); 305 } else { 306 BIO_puts(bio_out, "<NONE>"); 307 } 308 BIO_printf(bio_out, "\n"); 309 } 310 if (hash == i) { 311 int ok; 312 unsigned long hash_value = 313 X509_NAME_hash_ex(X509_CRL_get_issuer(x), app_get0_libctx(), 314 app_get0_propq(), &ok); 315 316 if (num > 1) 317 BIO_printf(bio_out, "issuer name hash="); 318 if (ok) { 319 BIO_printf(bio_out, "%08lx\n", hash_value); 320 } else { 321 BIO_puts(bio_out, "<ERROR>"); 322 goto end; 323 } 324 } 325 #ifndef OPENSSL_NO_MD5 326 if (hash_old == i) { 327 if (num > 1) 328 BIO_printf(bio_out, "issuer name old hash="); 329 BIO_printf(bio_out, "%08lx\n", 330 X509_NAME_hash_old(X509_CRL_get_issuer(x))); 331 } 332 #endif 333 if (lastupdate == i) { 334 BIO_printf(bio_out, "lastUpdate="); 335 ASN1_TIME_print_ex(bio_out, X509_CRL_get0_lastUpdate(x), dateopt); 336 BIO_printf(bio_out, "\n"); 337 } 338 if (nextupdate == i) { 339 BIO_printf(bio_out, "nextUpdate="); 340 if (X509_CRL_get0_nextUpdate(x)) 341 ASN1_TIME_print_ex(bio_out, X509_CRL_get0_nextUpdate(x), dateopt); 342 else 343 BIO_printf(bio_out, "NONE"); 344 BIO_printf(bio_out, "\n"); 345 } 346 if (fingerprint == i) { 347 int j; 348 unsigned int n; 349 unsigned char md[EVP_MAX_MD_SIZE]; 350 351 if (!X509_CRL_digest(x, digest, md, &n)) { 352 BIO_printf(bio_err, "out of memory\n"); 353 goto end; 354 } 355 BIO_printf(bio_out, "%s Fingerprint=", 356 EVP_MD_get0_name(digest)); 357 for (j = 0; j < (int)n; j++) { 358 BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n) 359 ? '\n' : ':'); 360 } 361 } 362 } 363 } 364 out = bio_open_default(outfile, 'w', outformat); 365 if (out == NULL) 366 goto end; 367 368 if (text) 369 X509_CRL_print_ex(out, x, get_nameopt()); 370 371 if (noout) { 372 ret = 0; 373 goto end; 374 } 375 376 if (outformat == FORMAT_ASN1) 377 i = (int)i2d_X509_CRL_bio(out, x); 378 else 379 i = PEM_write_bio_X509_CRL(out, x); 380 if (!i) { 381 BIO_printf(bio_err, "unable to write CRL\n"); 382 goto end; 383 } 384 ret = 0; 385 386 end: 387 if (ret != 0) 388 ERR_print_errors(bio_err); 389 BIO_free_all(out); 390 EVP_MD_free(digest); 391 X509_CRL_free(x); 392 X509_STORE_CTX_free(ctx); 393 X509_STORE_free(store); 394 return ret; 395 } 396