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| 1 /* apps/passwd.c */ | |
| 2 | |
| 3 #if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC | |
| 4 # define NO_MD5CRYPT_1 | |
| 5 #endif | |
| 6 | |
| 7 #if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1) | |
| 8 | |
| 9 #include <assert.h> | |
| 10 #include <string.h> | |
| 11 | |
| 12 #include "apps.h" | |
| 13 | |
| 14 #include <openssl/bio.h> | |
| 15 #include <openssl/err.h> | |
| 16 #include <openssl/evp.h> | |
| 17 #include <openssl/rand.h> | |
| 18 #ifndef OPENSSL_NO_DES | |
| 19 # include <openssl/des.h> | |
| 20 #endif | |
| 21 #ifndef NO_MD5CRYPT_1 | |
| 22 # include <openssl/md5.h> | |
| 23 #endif | |
| 24 | |
| 25 | |
| 26 #undef PROG | |
| 27 #define PROG passwd_main | |
| 28 | |
| 29 | |
| 30 static unsigned const char cov_2char[64]={ | |
| 31 /* from crypto/des/fcrypt.c */ | |
| 32 0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35, | |
| 33 0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44, | |
| 34 0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C, | |
| 35 0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54, | |
| 36 0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62, | |
| 37 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A, | |
| 38 0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72, | |
| 39 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A | |
| 40 }; | |
| 41 | |
| 42 static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, | |
| 43 char *passwd, BIO *out, int quiet, int table, int reverse, | |
| 44 size_t pw_maxlen, int usecrypt, int use1, int useapr1); | |
| 45 | |
| 46 /* -crypt - standard Unix password algorithm (default) | |
| 47 * -1 - MD5-based password algorithm | |
| 48 * -apr1 - MD5-based password algorithm, Apache variant | |
| 49 * -salt string - salt | |
| 50 * -in file - read passwords from file | |
| 51 * -stdin - read passwords from stdin | |
| 52 * -noverify - never verify when reading password from terminal | |
| 53 * -quiet - no warnings | |
| 54 * -table - format output as table | |
| 55 * -reverse - switch table columns | |
| 56 */ | |
| 57 | |
| 58 int MAIN(int, char **); | |
| 59 | |
| 60 int MAIN(int argc, char **argv) | |
| 61 { | |
| 62 int ret = 1; | |
| 63 char *infile = NULL; | |
| 64 int in_stdin = 0; | |
| 65 int in_noverify = 0; | |
| 66 char *salt = NULL, *passwd = NULL, **passwds = NULL; | |
| 67 char *salt_malloc = NULL, *passwd_malloc = NULL; | |
| 68 size_t passwd_malloc_size = 0; | |
| 69 int pw_source_defined = 0; | |
| 70 BIO *in = NULL, *out = NULL; | |
| 71 int i, badopt, opt_done; | |
| 72 int passed_salt = 0, quiet = 0, table = 0, reverse = 0; | |
| 73 int usecrypt = 0, use1 = 0, useapr1 = 0; | |
| 74 size_t pw_maxlen = 0; | |
| 75 | |
| 76 apps_startup(); | |
| 77 | |
| 78 if (bio_err == NULL) | |
| 79 if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
| 80 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); | |
| 81 | |
| 82 if (!load_config(bio_err, NULL)) | |
| 83 goto err; | |
| 84 out = BIO_new(BIO_s_file()); | |
| 85 if (out == NULL) | |
| 86 goto err; | |
| 87 BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); | |
| 88 #ifdef OPENSSL_SYS_VMS | |
| 89 { | |
| 90 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
| 91 out = BIO_push(tmpbio, out); | |
| 92 } | |
| 93 #endif | |
| 94 | |
| 95 badopt = 0, opt_done = 0; | |
| 96 i = 0; | |
| 97 while (!badopt && !opt_done && argv[++i] != NULL) | |
| 98 { | |
| 99 if (strcmp(argv[i], "-crypt") == 0) | |
| 100 usecrypt = 1; | |
| 101 else if (strcmp(argv[i], "-1") == 0) | |
| 102 use1 = 1; | |
| 103 else if (strcmp(argv[i], "-apr1") == 0) | |
| 104 useapr1 = 1; | |
| 105 else if (strcmp(argv[i], "-salt") == 0) | |
| 106 { | |
| 107 if ((argv[i+1] != NULL) && (salt == NULL)) | |
| 108 { | |
| 109 passed_salt = 1; | |
| 110 salt = argv[++i]; | |
| 111 } | |
| 112 else | |
| 113 badopt = 1; | |
| 114 } | |
| 115 else if (strcmp(argv[i], "-in") == 0) | |
| 116 { | |
| 117 if ((argv[i+1] != NULL) && !pw_source_defined) | |
| 118 { | |
| 119 pw_source_defined = 1; | |
| 120 infile = argv[++i]; | |
| 121 } | |
| 122 else | |
| 123 badopt = 1; | |
| 124 } | |
| 125 else if (strcmp(argv[i], "-stdin") == 0) | |
| 126 { | |
| 127 if (!pw_source_defined) | |
| 128 { | |
| 129 pw_source_defined = 1; | |
| 130 in_stdin = 1; | |
| 131 } | |
| 132 else | |
| 133 badopt = 1; | |
| 134 } | |
| 135 else if (strcmp(argv[i], "-noverify") == 0) | |
| 136 in_noverify = 1; | |
| 137 else if (strcmp(argv[i], "-quiet") == 0) | |
| 138 quiet = 1; | |
| 139 else if (strcmp(argv[i], "-table") == 0) | |
| 140 table = 1; | |
| 141 else if (strcmp(argv[i], "-reverse") == 0) | |
| 142 reverse = 1; | |
| 143 else if (argv[i][0] == '-') | |
| 144 badopt = 1; | |
| 145 else if (!pw_source_defined) | |
| 146 /* non-option arguments, use as passwords */ | |
| 147 { | |
| 148 pw_source_defined = 1; | |
| 149 passwds = &argv[i]; | |
| 150 opt_done = 1; | |
| 151 } | |
| 152 else | |
| 153 badopt = 1; | |
| 154 } | |
| 155 | |
| 156 if (!usecrypt && !use1 && !useapr1) /* use default */ | |
| 157 usecrypt = 1; | |
| 158 if (usecrypt + use1 + useapr1 > 1) /* conflict */ | |
| 159 badopt = 1; | |
| 160 | |
| 161 /* reject unsupported algorithms */ | |
| 162 #ifdef OPENSSL_NO_DES | |
| 163 if (usecrypt) badopt = 1; | |
| 164 #endif | |
| 165 #ifdef NO_MD5CRYPT_1 | |
| 166 if (use1 || useapr1) badopt = 1; | |
| 167 #endif | |
| 168 | |
| 169 if (badopt) | |
| 170 { | |
| 171 BIO_printf(bio_err, "Usage: passwd [options] [passwords]\n"); | |
| 172 BIO_printf(bio_err, "where options are\n"); | |
| 173 #ifndef OPENSSL_NO_DES | |
| 174 BIO_printf(bio_err, "-crypt standard Unix password a
lgorithm (default)\n"); | |
| 175 #endif | |
| 176 #ifndef NO_MD5CRYPT_1 | |
| 177 BIO_printf(bio_err, "-1 MD5-based password algor
ithm\n"); | |
| 178 BIO_printf(bio_err, "-apr1 MD5-based password algor
ithm, Apache variant\n"); | |
| 179 #endif | |
| 180 BIO_printf(bio_err, "-salt string use provided salt\n"); | |
| 181 BIO_printf(bio_err, "-in file read passwords from file
\n"); | |
| 182 BIO_printf(bio_err, "-stdin read passwords from stdi
n\n"); | |
| 183 BIO_printf(bio_err, "-noverify never verify when readin
g password from terminal\n"); | |
| 184 BIO_printf(bio_err, "-quiet no warnings\n"); | |
| 185 BIO_printf(bio_err, "-table format output as table\n
"); | |
| 186 BIO_printf(bio_err, "-reverse switch table columns\n")
; | |
| 187 | |
| 188 goto err; | |
| 189 } | |
| 190 | |
| 191 if ((infile != NULL) || in_stdin) | |
| 192 { | |
| 193 in = BIO_new(BIO_s_file()); | |
| 194 if (in == NULL) | |
| 195 goto err; | |
| 196 if (infile != NULL) | |
| 197 { | |
| 198 assert(in_stdin == 0); | |
| 199 if (BIO_read_filename(in, infile) <= 0) | |
| 200 goto err; | |
| 201 } | |
| 202 else | |
| 203 { | |
| 204 assert(in_stdin); | |
| 205 BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 if (usecrypt) | |
| 210 pw_maxlen = 8; | |
| 211 else if (use1 || useapr1) | |
| 212 pw_maxlen = 256; /* arbitrary limit, should be enough for most p
asswords */ | |
| 213 | |
| 214 if (passwds == NULL) | |
| 215 { | |
| 216 /* no passwords on the command line */ | |
| 217 | |
| 218 passwd_malloc_size = pw_maxlen + 2; | |
| 219 /* longer than necessary so that we can warn about truncation */ | |
| 220 passwd = passwd_malloc = OPENSSL_malloc(passwd_malloc_size); | |
| 221 if (passwd_malloc == NULL) | |
| 222 goto err; | |
| 223 } | |
| 224 | |
| 225 if ((in == NULL) && (passwds == NULL)) | |
| 226 { | |
| 227 /* build a null-terminated list */ | |
| 228 static char *passwds_static[2] = {NULL, NULL}; | |
| 229 | |
| 230 passwds = passwds_static; | |
| 231 if (in == NULL) | |
| 232 if (EVP_read_pw_string(passwd_malloc, passwd_malloc_size
, "Password: ", !(passed_salt || in_noverify)) != 0) | |
| 233 goto err; | |
| 234 passwds[0] = passwd_malloc; | |
| 235 } | |
| 236 | |
| 237 if (in == NULL) | |
| 238 { | |
| 239 assert(passwds != NULL); | |
| 240 assert(*passwds != NULL); | |
| 241 | |
| 242 do /* loop over list of passwords */ | |
| 243 { | |
| 244 passwd = *passwds++; | |
| 245 if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd,
out, | |
| 246 quiet, table, reverse, pw_maxlen, usecrypt, use1
, useapr1)) | |
| 247 goto err; | |
| 248 } | |
| 249 while (*passwds != NULL); | |
| 250 } | |
| 251 else | |
| 252 /* in != NULL */ | |
| 253 { | |
| 254 int done; | |
| 255 | |
| 256 assert (passwd != NULL); | |
| 257 do | |
| 258 { | |
| 259 int r = BIO_gets(in, passwd, pw_maxlen + 1); | |
| 260 if (r > 0) | |
| 261 { | |
| 262 char *c = (strchr(passwd, '\n')) ; | |
| 263 if (c != NULL) | |
| 264 *c = 0; /* truncate at newline */ | |
| 265 else | |
| 266 { | |
| 267 /* ignore rest of line */ | |
| 268 char trash[BUFSIZ]; | |
| 269 do | |
| 270 r = BIO_gets(in, trash, sizeof t
rash); | |
| 271 while ((r > 0) && (!strchr(trash, '\n'))
); | |
| 272 } | |
| 273 | |
| 274 if (!do_passwd(passed_salt, &salt, &salt_malloc,
passwd, out, | |
| 275 quiet, table, reverse, pw_maxlen, usecry
pt, use1, useapr1)) | |
| 276 goto err; | |
| 277 } | |
| 278 done = (r <= 0); | |
| 279 } | |
| 280 while (!done); | |
| 281 } | |
| 282 ret = 0; | |
| 283 | |
| 284 err: | |
| 285 ERR_print_errors(bio_err); | |
| 286 if (salt_malloc) | |
| 287 OPENSSL_free(salt_malloc); | |
| 288 if (passwd_malloc) | |
| 289 OPENSSL_free(passwd_malloc); | |
| 290 if (in) | |
| 291 BIO_free(in); | |
| 292 if (out) | |
| 293 BIO_free_all(out); | |
| 294 apps_shutdown(); | |
| 295 OPENSSL_EXIT(ret); | |
| 296 } | |
| 297 | |
| 298 | |
| 299 #ifndef NO_MD5CRYPT_1 | |
| 300 /* MD5-based password algorithm (should probably be available as a library | |
| 301 * function; then the static buffer would not be acceptable). | |
| 302 * For magic string "1", this should be compatible to the MD5-based BSD | |
| 303 * password algorithm. | |
| 304 * For 'magic' string "apr1", this is compatible to the MD5-based Apache | |
| 305 * password algorithm. | |
| 306 * (Apparently, the Apache password algorithm is identical except that the | |
| 307 * 'magic' string was changed -- the laziest application of the NIH principle | |
| 308 * I've ever encountered.) | |
| 309 */ | |
| 310 static char *md5crypt(const char *passwd, const char *magic, const char *salt) | |
| 311 { | |
| 312 static char out_buf[6 + 9 + 24 + 2]; /* "$apr1$..salt..$.......md5hash..
........\0" */ | |
| 313 unsigned char buf[MD5_DIGEST_LENGTH]; | |
| 314 char *salt_out; | |
| 315 int n; | |
| 316 unsigned int i; | |
| 317 EVP_MD_CTX md,md2; | |
| 318 size_t passwd_len, salt_len; | |
| 319 | |
| 320 passwd_len = strlen(passwd); | |
| 321 out_buf[0] = '$'; | |
| 322 out_buf[1] = 0; | |
| 323 assert(strlen(magic) <= 4); /* "1" or "apr1" */ | |
| 324 strncat(out_buf, magic, 4); | |
| 325 strncat(out_buf, "$", 1); | |
| 326 strncat(out_buf, salt, 8); | |
| 327 assert(strlen(out_buf) <= 6 + 8); /* "$apr1$..salt.." */ | |
| 328 salt_out = out_buf + 2 + strlen(magic); | |
| 329 salt_len = strlen(salt_out); | |
| 330 assert(salt_len <= 8); | |
| 331 | |
| 332 EVP_MD_CTX_init(&md); | |
| 333 EVP_DigestInit_ex(&md,EVP_md5(), NULL); | |
| 334 EVP_DigestUpdate(&md, passwd, passwd_len); | |
| 335 EVP_DigestUpdate(&md, "$", 1); | |
| 336 EVP_DigestUpdate(&md, magic, strlen(magic)); | |
| 337 EVP_DigestUpdate(&md, "$", 1); | |
| 338 EVP_DigestUpdate(&md, salt_out, salt_len); | |
| 339 | |
| 340 EVP_MD_CTX_init(&md2); | |
| 341 EVP_DigestInit_ex(&md2,EVP_md5(), NULL); | |
| 342 EVP_DigestUpdate(&md2, passwd, passwd_len); | |
| 343 EVP_DigestUpdate(&md2, salt_out, salt_len); | |
| 344 EVP_DigestUpdate(&md2, passwd, passwd_len); | |
| 345 EVP_DigestFinal_ex(&md2, buf, NULL); | |
| 346 | |
| 347 for (i = passwd_len; i > sizeof buf; i -= sizeof buf) | |
| 348 EVP_DigestUpdate(&md, buf, sizeof buf); | |
| 349 EVP_DigestUpdate(&md, buf, i); | |
| 350 | |
| 351 n = passwd_len; | |
| 352 while (n) | |
| 353 { | |
| 354 EVP_DigestUpdate(&md, (n & 1) ? "\0" : passwd, 1); | |
| 355 n >>= 1; | |
| 356 } | |
| 357 EVP_DigestFinal_ex(&md, buf, NULL); | |
| 358 | |
| 359 for (i = 0; i < 1000; i++) | |
| 360 { | |
| 361 EVP_DigestInit_ex(&md2,EVP_md5(), NULL); | |
| 362 EVP_DigestUpdate(&md2, (i & 1) ? (unsigned const char *) passwd
: buf, | |
| 363 (i & 1) ? passwd_len : sizeof buf); | |
| 364 if (i % 3) | |
| 365 EVP_DigestUpdate(&md2, salt_out, salt_len); | |
| 366 if (i % 7) | |
| 367 EVP_DigestUpdate(&md2, passwd, passwd_len); | |
| 368 EVP_DigestUpdate(&md2, (i & 1) ? buf : (unsigned const char *) p
asswd, | |
| 369 (i & 1) ? sizeof buf : passwd_len); | |
| 370 EVP_DigestFinal_ex(&md2, buf, NULL); | |
| 371 } | |
| 372 EVP_MD_CTX_cleanup(&md2); | |
| 373 | |
| 374 { | |
| 375 /* transform buf into output string */ | |
| 376 | |
| 377 unsigned char buf_perm[sizeof buf]; | |
| 378 int dest, source; | |
| 379 char *output; | |
| 380 | |
| 381 /* silly output permutation */ | |
| 382 for (dest = 0, source = 0; dest < 14; dest++, source = (source +
6) % 17) | |
| 383 buf_perm[dest] = buf[source]; | |
| 384 buf_perm[14] = buf[5]; | |
| 385 buf_perm[15] = buf[11]; | |
| 386 #ifndef PEDANTIC /* Unfortunately, this generates a "no effect" warning */ | |
| 387 assert(16 == sizeof buf_perm); | |
| 388 #endif | |
| 389 | |
| 390 output = salt_out + salt_len; | |
| 391 assert(output == out_buf + strlen(out_buf)); | |
| 392 | |
| 393 *output++ = '$'; | |
| 394 | |
| 395 for (i = 0; i < 15; i += 3) | |
| 396 { | |
| 397 *output++ = cov_2char[buf_perm[i+2] & 0x3f]; | |
| 398 *output++ = cov_2char[((buf_perm[i+1] & 0xf) << 2) | | |
| 399 (buf_perm[i+2] >> 6)]; | |
| 400 *output++ = cov_2char[((buf_perm[i] & 3) << 4) | | |
| 401 (buf_perm[i+1] >> 4)]; | |
| 402 *output++ = cov_2char[buf_perm[i] >> 2]; | |
| 403 } | |
| 404 assert(i == 15); | |
| 405 *output++ = cov_2char[buf_perm[i] & 0x3f]; | |
| 406 *output++ = cov_2char[buf_perm[i] >> 6]; | |
| 407 *output = 0; | |
| 408 assert(strlen(out_buf) < sizeof(out_buf)); | |
| 409 } | |
| 410 EVP_MD_CTX_cleanup(&md); | |
| 411 | |
| 412 return out_buf; | |
| 413 } | |
| 414 #endif | |
| 415 | |
| 416 | |
| 417 static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, | |
| 418 char *passwd, BIO *out, int quiet, int table, int reverse, | |
| 419 size_t pw_maxlen, int usecrypt, int use1, int useapr1) | |
| 420 { | |
| 421 char *hash = NULL; | |
| 422 | |
| 423 assert(salt_p != NULL); | |
| 424 assert(salt_malloc_p != NULL); | |
| 425 | |
| 426 /* first make sure we have a salt */ | |
| 427 if (!passed_salt) | |
| 428 { | |
| 429 #ifndef OPENSSL_NO_DES | |
| 430 if (usecrypt) | |
| 431 { | |
| 432 if (*salt_malloc_p == NULL) | |
| 433 { | |
| 434 *salt_p = *salt_malloc_p = OPENSSL_malloc(3); | |
| 435 if (*salt_malloc_p == NULL) | |
| 436 goto err; | |
| 437 } | |
| 438 if (RAND_pseudo_bytes((unsigned char *)*salt_p, 2) < 0) | |
| 439 goto err; | |
| 440 (*salt_p)[0] = cov_2char[(*salt_p)[0] & 0x3f]; /* 6 bits
*/ | |
| 441 (*salt_p)[1] = cov_2char[(*salt_p)[1] & 0x3f]; /* 6 bits
*/ | |
| 442 (*salt_p)[2] = 0; | |
| 443 #ifdef CHARSET_EBCDIC | |
| 444 ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will con
vert | |
| 445 * back to ASCII */ | |
| 446 #endif | |
| 447 } | |
| 448 #endif /* !OPENSSL_NO_DES */ | |
| 449 | |
| 450 #ifndef NO_MD5CRYPT_1 | |
| 451 if (use1 || useapr1) | |
| 452 { | |
| 453 int i; | |
| 454 | |
| 455 if (*salt_malloc_p == NULL) | |
| 456 { | |
| 457 *salt_p = *salt_malloc_p = OPENSSL_malloc(9); | |
| 458 if (*salt_malloc_p == NULL) | |
| 459 goto err; | |
| 460 } | |
| 461 if (RAND_pseudo_bytes((unsigned char *)*salt_p, 8) < 0) | |
| 462 goto err; | |
| 463 | |
| 464 for (i = 0; i < 8; i++) | |
| 465 (*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /
* 6 bits */ | |
| 466 (*salt_p)[8] = 0; | |
| 467 } | |
| 468 #endif /* !NO_MD5CRYPT_1 */ | |
| 469 } | |
| 470 | |
| 471 assert(*salt_p != NULL); | |
| 472 | |
| 473 /* truncate password if necessary */ | |
| 474 if ((strlen(passwd) > pw_maxlen)) | |
| 475 { | |
| 476 if (!quiet) | |
| 477 /* XXX: really we should know how to print a size_t, not
cast it */ | |
| 478 BIO_printf(bio_err, "Warning: truncating password to %u
characters\n", (unsigned)pw_maxlen); | |
| 479 passwd[pw_maxlen] = 0; | |
| 480 } | |
| 481 assert(strlen(passwd) <= pw_maxlen); | |
| 482 | |
| 483 /* now compute password hash */ | |
| 484 #ifndef OPENSSL_NO_DES | |
| 485 if (usecrypt) | |
| 486 hash = DES_crypt(passwd, *salt_p); | |
| 487 #endif | |
| 488 #ifndef NO_MD5CRYPT_1 | |
| 489 if (use1 || useapr1) | |
| 490 hash = md5crypt(passwd, (use1 ? "1" : "apr1"), *salt_p); | |
| 491 #endif | |
| 492 assert(hash != NULL); | |
| 493 | |
| 494 if (table && !reverse) | |
| 495 BIO_printf(out, "%s\t%s\n", passwd, hash); | |
| 496 else if (table && reverse) | |
| 497 BIO_printf(out, "%s\t%s\n", hash, passwd); | |
| 498 else | |
| 499 BIO_printf(out, "%s\n", hash); | |
| 500 return 1; | |
| 501 | |
| 502 err: | |
| 503 return 0; | |
| 504 } | |
| 505 #else | |
| 506 | |
| 507 int MAIN(int argc, char **argv) | |
| 508 { | |
| 509 fputs("Program not available.\n", stderr) | |
| 510 OPENSSL_EXIT(1); | |
| 511 } | |
| 512 #endif | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master