source: EcnlProtoTool/trunk/openssl-1.1.0e/apps/passwd.c@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 15.0 KB
Line 
1/*
2 * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 OPENSSL_NO_MD5 || defined CHARSET_EBCDIC
11# define NO_MD5CRYPT_1
12#endif
13
14#if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1)
15
16# include <string.h>
17
18# include "apps.h"
19
20# include <openssl/bio.h>
21# include <openssl/err.h>
22# include <openssl/evp.h>
23# include <openssl/rand.h>
24# ifndef OPENSSL_NO_DES
25# include <openssl/des.h>
26# endif
27# ifndef NO_MD5CRYPT_1
28# include <openssl/md5.h>
29# endif
30
31static unsigned const char cov_2char[64] = {
32 /* from crypto/des/fcrypt.c */
33 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
34 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44,
35 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C,
36 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54,
37 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62,
38 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
39 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72,
40 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A
41};
42
43static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
44 char *passwd, BIO *out, int quiet, int table,
45 int reverse, size_t pw_maxlen, int usecrypt, int use1,
46 int useapr1);
47
48typedef enum OPTION_choice {
49 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
50 OPT_IN,
51 OPT_NOVERIFY, OPT_QUIET, OPT_TABLE, OPT_REVERSE, OPT_APR1,
52 OPT_1, OPT_CRYPT, OPT_SALT, OPT_STDIN
53} OPTION_CHOICE;
54
55OPTIONS passwd_options[] = {
56 {"help", OPT_HELP, '-', "Display this summary"},
57 {"in", OPT_IN, '<', "Pead passwords from file"},
58 {"noverify", OPT_NOVERIFY, '-',
59 "Never verify when reading password from terminal"},
60 {"quiet", OPT_QUIET, '-', "No warnings"},
61 {"table", OPT_TABLE, '-', "Format output as table"},
62 {"reverse", OPT_REVERSE, '-', "Switch table columns"},
63 {"salt", OPT_SALT, 's', "Use provided salt"},
64 {"stdin", OPT_STDIN, '-', "Read passwords from stdin"},
65# ifndef NO_MD5CRYPT_1
66 {"apr1", OPT_APR1, '-', "MD5-based password algorithm, Apache variant"},
67 {"1", OPT_1, '-', "MD5-based password algorithm"},
68# endif
69# ifndef OPENSSL_NO_DES
70 {"crypt", OPT_CRYPT, '-', "Standard Unix password algorithm (default)"},
71# endif
72 {NULL}
73};
74
75int passwd_main(int argc, char **argv)
76{
77 BIO *in = NULL;
78 char *infile = NULL, *salt = NULL, *passwd = NULL, **passwds = NULL;
79 char *salt_malloc = NULL, *passwd_malloc = NULL, *prog;
80 OPTION_CHOICE o;
81 int in_stdin = 0, pw_source_defined = 0;
82#ifndef OPENSSL_NO_UI
83 int in_noverify = 0;
84#endif
85 int passed_salt = 0, quiet = 0, table = 0, reverse = 0;
86 int ret = 1, usecrypt = 0, use1 = 0, useapr1 = 0;
87 size_t passwd_malloc_size = 0, pw_maxlen = 256;
88
89 prog = opt_init(argc, argv, passwd_options);
90 while ((o = opt_next()) != OPT_EOF) {
91 switch (o) {
92 case OPT_EOF:
93 case OPT_ERR:
94 opthelp:
95 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
96 goto end;
97 case OPT_HELP:
98 opt_help(passwd_options);
99 ret = 0;
100 goto end;
101 case OPT_IN:
102 if (pw_source_defined)
103 goto opthelp;
104 infile = opt_arg();
105 pw_source_defined = 1;
106 break;
107 case OPT_NOVERIFY:
108#ifndef OPENSSL_NO_UI
109 in_noverify = 1;
110#endif
111 break;
112 case OPT_QUIET:
113 quiet = 1;
114 break;
115 case OPT_TABLE:
116 table = 1;
117 break;
118 case OPT_REVERSE:
119 reverse = 1;
120 break;
121 case OPT_1:
122 use1 = 1;
123 break;
124 case OPT_APR1:
125 useapr1 = 1;
126 break;
127 case OPT_CRYPT:
128 usecrypt = 1;
129 break;
130 case OPT_SALT:
131 passed_salt = 1;
132 salt = opt_arg();
133 break;
134 case OPT_STDIN:
135 if (pw_source_defined)
136 goto opthelp;
137 in_stdin = 1;
138 pw_source_defined = 1;
139 break;
140 }
141 }
142 argc = opt_num_rest();
143 argv = opt_rest();
144
145 if (*argv) {
146 if (pw_source_defined)
147 goto opthelp;
148 pw_source_defined = 1;
149 passwds = argv;
150 }
151
152 if (!usecrypt && !use1 && !useapr1) {
153 /* use default */
154 usecrypt = 1;
155 }
156 if (usecrypt + use1 + useapr1 > 1) {
157 /* conflict */
158 goto opthelp;
159 }
160
161# ifdef OPENSSL_NO_DES
162 if (usecrypt)
163 goto opthelp;
164# endif
165# ifdef NO_MD5CRYPT_1
166 if (use1 || useapr1)
167 goto opthelp;
168# endif
169
170 if (infile != NULL && in_stdin) {
171 BIO_printf(bio_err, "%s: Can't combine -in and -stdin\n", prog);
172 goto end;
173 }
174
175 if (infile != NULL || in_stdin) {
176 /*
177 * If in_stdin is true, we know that infile is NULL, and that
178 * bio_open_default() will give us back an alias for stdin.
179 */
180 in = bio_open_default(infile, 'r', FORMAT_TEXT);
181 if (in == NULL)
182 goto end;
183 }
184
185 if (usecrypt)
186 pw_maxlen = 8;
187 else if (use1 || useapr1)
188 pw_maxlen = 256; /* arbitrary limit, should be enough for most
189 * passwords */
190
191 if (passwds == NULL) {
192 /* no passwords on the command line */
193
194 passwd_malloc_size = pw_maxlen + 2;
195 /* longer than necessary so that we can warn about truncation */
196 passwd = passwd_malloc =
197 app_malloc(passwd_malloc_size, "password buffer");
198 }
199
200 if ((in == NULL) && (passwds == NULL)) {
201 if (1) {
202#ifndef OPENSSL_NO_UI
203 /* build a null-terminated list */
204 static char *passwds_static[2] = { NULL, NULL };
205
206 passwds = passwds_static;
207 if (in == NULL)
208 if (EVP_read_pw_string
209 (passwd_malloc, passwd_malloc_size, "Password: ",
210 !(passed_salt || in_noverify)) != 0)
211 goto end;
212 passwds[0] = passwd_malloc;
213 } else {
214#endif
215 BIO_printf(bio_err, "password required\n");
216 goto end;
217 }
218 }
219
220
221 if (in == NULL) {
222 assert(passwds != NULL);
223 assert(*passwds != NULL);
224
225 do { /* loop over list of passwords */
226 passwd = *passwds++;
227 if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, bio_out,
228 quiet, table, reverse, pw_maxlen, usecrypt, use1,
229 useapr1))
230 goto end;
231 }
232 while (*passwds != NULL);
233 } else
234 /* in != NULL */
235 {
236 int done;
237
238 assert(passwd != NULL);
239 do {
240 int r = BIO_gets(in, passwd, pw_maxlen + 1);
241 if (r > 0) {
242 char *c = (strchr(passwd, '\n'));
243 if (c != NULL)
244 *c = 0; /* truncate at newline */
245 else {
246 /* ignore rest of line */
247 char trash[BUFSIZ];
248 do
249 r = BIO_gets(in, trash, sizeof trash);
250 while ((r > 0) && (!strchr(trash, '\n')));
251 }
252
253 if (!do_passwd
254 (passed_salt, &salt, &salt_malloc, passwd, bio_out, quiet,
255 table, reverse, pw_maxlen, usecrypt, use1, useapr1))
256 goto end;
257 }
258 done = (r <= 0);
259 }
260 while (!done);
261 }
262 ret = 0;
263
264 end:
265 ERR_print_errors(bio_err);
266 OPENSSL_free(salt_malloc);
267 OPENSSL_free(passwd_malloc);
268 BIO_free(in);
269 return (ret);
270}
271
272# ifndef NO_MD5CRYPT_1
273/*
274 * MD5-based password algorithm (should probably be available as a library
275 * function; then the static buffer would not be acceptable). For magic
276 * string "1", this should be compatible to the MD5-based BSD password
277 * algorithm. For 'magic' string "apr1", this is compatible to the MD5-based
278 * Apache password algorithm. (Apparently, the Apache password algorithm is
279 * identical except that the 'magic' string was changed -- the laziest
280 * application of the NIH principle I've ever encountered.)
281 */
282static char *md5crypt(const char *passwd, const char *magic, const char *salt)
283{
284 /* "$apr1$..salt..$.......md5hash..........\0" */
285 static char out_buf[6 + 9 + 24 + 2];
286 unsigned char buf[MD5_DIGEST_LENGTH];
287 char *salt_out;
288 int n;
289 unsigned int i;
290 EVP_MD_CTX *md = NULL, *md2 = NULL;
291 size_t passwd_len, salt_len, magic_len;
292
293 passwd_len = strlen(passwd);
294 out_buf[0] = '$';
295 out_buf[1] = 0;
296 magic_len = strlen(magic);
297
298 if (magic_len > 4) /* assert it's "1" or "apr1" */
299 return NULL;
300
301 OPENSSL_strlcat(out_buf, magic, sizeof out_buf);
302 OPENSSL_strlcat(out_buf, "$", sizeof out_buf);
303 OPENSSL_strlcat(out_buf, salt, sizeof out_buf);
304
305 if (strlen(out_buf) > 6 + 8) /* assert "$apr1$..salt.." */
306 return NULL;
307
308 salt_out = out_buf + 2 + magic_len;
309 salt_len = strlen(salt_out);
310
311 if (salt_len > 8)
312 return NULL;
313
314 md = EVP_MD_CTX_new();
315 if (md == NULL
316 || !EVP_DigestInit_ex(md, EVP_md5(), NULL)
317 || !EVP_DigestUpdate(md, passwd, passwd_len)
318 || !EVP_DigestUpdate(md, "$", 1)
319 || !EVP_DigestUpdate(md, magic, magic_len)
320 || !EVP_DigestUpdate(md, "$", 1)
321 || !EVP_DigestUpdate(md, salt_out, salt_len))
322 goto err;
323
324 md2 = EVP_MD_CTX_new();
325 if (md2 == NULL
326 || !EVP_DigestInit_ex(md2, EVP_md5(), NULL)
327 || !EVP_DigestUpdate(md2, passwd, passwd_len)
328 || !EVP_DigestUpdate(md2, salt_out, salt_len)
329 || !EVP_DigestUpdate(md2, passwd, passwd_len)
330 || !EVP_DigestFinal_ex(md2, buf, NULL))
331 goto err;
332
333 for (i = passwd_len; i > sizeof buf; i -= sizeof buf) {
334 if (!EVP_DigestUpdate(md, buf, sizeof buf))
335 goto err;
336 }
337 if (!EVP_DigestUpdate(md, buf, i))
338 goto err;
339
340 n = passwd_len;
341 while (n) {
342 if (!EVP_DigestUpdate(md, (n & 1) ? "\0" : passwd, 1))
343 goto err;
344 n >>= 1;
345 }
346 if (!EVP_DigestFinal_ex(md, buf, NULL))
347 return NULL;
348
349 for (i = 0; i < 1000; i++) {
350 if (!EVP_DigestInit_ex(md2, EVP_md5(), NULL))
351 goto err;
352 if (!EVP_DigestUpdate(md2,
353 (i & 1) ? (unsigned const char *)passwd : buf,
354 (i & 1) ? passwd_len : sizeof buf))
355 goto err;
356 if (i % 3) {
357 if (!EVP_DigestUpdate(md2, salt_out, salt_len))
358 goto err;
359 }
360 if (i % 7) {
361 if (!EVP_DigestUpdate(md2, passwd, passwd_len))
362 goto err;
363 }
364 if (!EVP_DigestUpdate(md2,
365 (i & 1) ? buf : (unsigned const char *)passwd,
366 (i & 1) ? sizeof buf : passwd_len))
367 goto err;
368 if (!EVP_DigestFinal_ex(md2, buf, NULL))
369 goto err;
370 }
371 EVP_MD_CTX_free(md2);
372 EVP_MD_CTX_free(md);
373 md2 = NULL;
374 md = NULL;
375
376 {
377 /* transform buf into output string */
378 unsigned char buf_perm[sizeof buf];
379 int dest, source;
380 char *output;
381
382 /* silly output permutation */
383 for (dest = 0, source = 0; dest < 14;
384 dest++, source = (source + 6) % 17)
385 buf_perm[dest] = buf[source];
386 buf_perm[14] = buf[5];
387 buf_perm[15] = buf[11];
388# ifndef PEDANTIC /* Unfortunately, this generates a "no
389 * effect" warning */
390 assert(16 == sizeof buf_perm);
391# endif
392
393 output = salt_out + salt_len;
394 assert(output == out_buf + strlen(out_buf));
395
396 *output++ = '$';
397
398 for (i = 0; i < 15; i += 3) {
399 *output++ = cov_2char[buf_perm[i + 2] & 0x3f];
400 *output++ = cov_2char[((buf_perm[i + 1] & 0xf) << 2) |
401 (buf_perm[i + 2] >> 6)];
402 *output++ = cov_2char[((buf_perm[i] & 3) << 4) |
403 (buf_perm[i + 1] >> 4)];
404 *output++ = cov_2char[buf_perm[i] >> 2];
405 }
406 assert(i == 15);
407 *output++ = cov_2char[buf_perm[i] & 0x3f];
408 *output++ = cov_2char[buf_perm[i] >> 6];
409 *output = 0;
410 assert(strlen(out_buf) < sizeof(out_buf));
411 }
412
413 return out_buf;
414
415 err:
416 EVP_MD_CTX_free(md2);
417 EVP_MD_CTX_free(md);
418 return NULL;
419}
420# endif
421
422static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
423 char *passwd, BIO *out, int quiet, int table,
424 int reverse, size_t pw_maxlen, int usecrypt, int use1,
425 int useapr1)
426{
427 char *hash = NULL;
428
429 assert(salt_p != NULL);
430 assert(salt_malloc_p != NULL);
431
432 /* first make sure we have a salt */
433 if (!passed_salt) {
434# ifndef OPENSSL_NO_DES
435 if (usecrypt) {
436 if (*salt_malloc_p == NULL) {
437 *salt_p = *salt_malloc_p = app_malloc(3, "salt buffer");
438 }
439 if (RAND_bytes((unsigned char *)*salt_p, 2) <= 0)
440 goto end;
441 (*salt_p)[0] = cov_2char[(*salt_p)[0] & 0x3f]; /* 6 bits */
442 (*salt_p)[1] = cov_2char[(*salt_p)[1] & 0x3f]; /* 6 bits */
443 (*salt_p)[2] = 0;
444# ifdef CHARSET_EBCDIC
445 ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will convert back
446 * to ASCII */
447# endif
448 }
449# endif /* !OPENSSL_NO_DES */
450
451# ifndef NO_MD5CRYPT_1
452 if (use1 || useapr1) {
453 int i;
454
455 if (*salt_malloc_p == NULL) {
456 *salt_p = *salt_malloc_p = app_malloc(9, "salt buffer");
457 }
458 if (RAND_bytes((unsigned char *)*salt_p, 8) <= 0)
459 goto end;
460
461 for (i = 0; i < 8; i++)
462 (*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /* 6 bits */
463 (*salt_p)[8] = 0;
464 }
465# endif /* !NO_MD5CRYPT_1 */
466 }
467
468 assert(*salt_p != NULL);
469
470 /* truncate password if necessary */
471 if ((strlen(passwd) > pw_maxlen)) {
472 if (!quiet)
473 /*
474 * XXX: really we should know how to print a size_t, not cast it
475 */
476 BIO_printf(bio_err,
477 "Warning: truncating password to %u characters\n",
478 (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 end:
503 return 0;
504}
505#else
506
507int passwd_main(int argc, char **argv)
508{
509 BIO_printf(bio_err, "Program not available.\n");
510 return (1);
511}
512#endif
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