| /* apps/passwd.c */ |
| |
| #if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC |
| # define NO_MD5CRYPT_1 |
| #endif |
| |
| #if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1) |
| |
| # include <assert.h> |
| # include <string.h> |
| |
| # include "apps.h" |
| |
| # include <openssl/bio.h> |
| # include <openssl/err.h> |
| # include <openssl/evp.h> |
| # include <openssl/rand.h> |
| # ifndef OPENSSL_NO_DES |
| # include <openssl/des.h> |
| # endif |
| # ifndef NO_MD5CRYPT_1 |
| # include <openssl/md5.h> |
| # endif |
| |
| # undef PROG |
| # define PROG passwd_main |
| |
| static unsigned const char cov_2char[64] = { |
| /* from crypto/des/fcrypt.c */ |
| 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, |
| 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, |
| 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, |
| 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, |
| 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62, |
| 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, |
| 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, |
| 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A |
| }; |
| |
| static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, |
| char *passwd, BIO *out, int quiet, int table, |
| int reverse, size_t pw_maxlen, int usecrypt, int use1, |
| int useapr1); |
| |
| /*- |
| * -crypt - standard Unix password algorithm (default) |
| * -1 - MD5-based password algorithm |
| * -apr1 - MD5-based password algorithm, Apache variant |
| * -salt string - salt |
| * -in file - read passwords from file |
| * -stdin - read passwords from stdin |
| * -noverify - never verify when reading password from terminal |
| * -quiet - no warnings |
| * -table - format output as table |
| * -reverse - switch table columns |
| */ |
| |
| int MAIN(int, char **); |
| |
| int MAIN(int argc, char **argv) |
| { |
| int ret = 1; |
| char *infile = NULL; |
| int in_stdin = 0; |
| int in_noverify = 0; |
| char *salt = NULL, *passwd = NULL, **passwds = NULL; |
| char *salt_malloc = NULL, *passwd_malloc = NULL; |
| size_t passwd_malloc_size = 0; |
| int pw_source_defined = 0; |
| BIO *in = NULL, *out = NULL; |
| int i, badopt, opt_done; |
| int passed_salt = 0, quiet = 0, table = 0, reverse = 0; |
| int usecrypt = 0, use1 = 0, useapr1 = 0; |
| size_t pw_maxlen = 0; |
| |
| apps_startup(); |
| |
| if (bio_err == NULL) |
| if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
| BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
| |
| if (!load_config(bio_err, NULL)) |
| goto err; |
| out = BIO_new(BIO_s_file()); |
| if (out == NULL) |
| goto err; |
| BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); |
| # ifdef OPENSSL_SYS_VMS |
| { |
| BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| out = BIO_push(tmpbio, out); |
| } |
| # endif |
| |
| badopt = 0, opt_done = 0; |
| i = 0; |
| while (!badopt && !opt_done && argv[++i] != NULL) { |
| if (strcmp(argv[i], "-crypt") == 0) |
| usecrypt = 1; |
| else if (strcmp(argv[i], "-1") == 0) |
| use1 = 1; |
| else if (strcmp(argv[i], "-apr1") == 0) |
| useapr1 = 1; |
| else if (strcmp(argv[i], "-salt") == 0) { |
| if ((argv[i + 1] != NULL) && (salt == NULL)) { |
| passed_salt = 1; |
| salt = argv[++i]; |
| } else |
| badopt = 1; |
| } else if (strcmp(argv[i], "-in") == 0) { |
| if ((argv[i + 1] != NULL) && !pw_source_defined) { |
| pw_source_defined = 1; |
| infile = argv[++i]; |
| } else |
| badopt = 1; |
| } else if (strcmp(argv[i], "-stdin") == 0) { |
| if (!pw_source_defined) { |
| pw_source_defined = 1; |
| in_stdin = 1; |
| } else |
| badopt = 1; |
| } else if (strcmp(argv[i], "-noverify") == 0) |
| in_noverify = 1; |
| else if (strcmp(argv[i], "-quiet") == 0) |
| quiet = 1; |
| else if (strcmp(argv[i], "-table") == 0) |
| table = 1; |
| else if (strcmp(argv[i], "-reverse") == 0) |
| reverse = 1; |
| else if (argv[i][0] == '-') |
| badopt = 1; |
| else if (!pw_source_defined) |
| /* non-option arguments, use as passwords */ |
| { |
| pw_source_defined = 1; |
| passwds = &argv[i]; |
| opt_done = 1; |
| } else |
| badopt = 1; |
| } |
| |
| if (!usecrypt && !use1 && !useapr1) /* use default */ |
| usecrypt = 1; |
| if (usecrypt + use1 + useapr1 > 1) /* conflict */ |
| badopt = 1; |
| |
| /* reject unsupported algorithms */ |
| # ifdef OPENSSL_NO_DES |
| if (usecrypt) |
| badopt = 1; |
| # endif |
| # ifdef NO_MD5CRYPT_1 |
| if (use1 || useapr1) |
| badopt = 1; |
| # endif |
| |
| if (badopt) { |
| BIO_printf(bio_err, "Usage: passwd [options] [passwords]\n"); |
| BIO_printf(bio_err, "where options are\n"); |
| # ifndef OPENSSL_NO_DES |
| BIO_printf(bio_err, |
| "-crypt standard Unix password algorithm (default)\n"); |
| # endif |
| # ifndef NO_MD5CRYPT_1 |
| BIO_printf(bio_err, |
| "-1 MD5-based password algorithm\n"); |
| BIO_printf(bio_err, |
| "-apr1 MD5-based password algorithm, Apache variant\n"); |
| # endif |
| BIO_printf(bio_err, "-salt string use provided salt\n"); |
| BIO_printf(bio_err, "-in file read passwords from file\n"); |
| BIO_printf(bio_err, "-stdin read passwords from stdin\n"); |
| BIO_printf(bio_err, |
| "-noverify never verify when reading password from terminal\n"); |
| BIO_printf(bio_err, "-quiet no warnings\n"); |
| BIO_printf(bio_err, "-table format output as table\n"); |
| BIO_printf(bio_err, "-reverse switch table columns\n"); |
| |
| goto err; |
| } |
| |
| if ((infile != NULL) || in_stdin) { |
| in = BIO_new(BIO_s_file()); |
| if (in == NULL) |
| goto err; |
| if (infile != NULL) { |
| assert(in_stdin == 0); |
| if (BIO_read_filename(in, infile) <= 0) |
| goto err; |
| } else { |
| assert(in_stdin); |
| BIO_set_fp(in, stdin, BIO_NOCLOSE); |
| } |
| } |
| |
| if (usecrypt) |
| pw_maxlen = 8; |
| else if (use1 || useapr1) |
| pw_maxlen = 256; /* arbitrary limit, should be enough for most |
| * passwords */ |
| |
| if (passwds == NULL) { |
| /* no passwords on the command line */ |
| |
| passwd_malloc_size = pw_maxlen + 2; |
| /* |
| * longer than necessary so that we can warn about truncation |
| */ |
| passwd = passwd_malloc = OPENSSL_malloc(passwd_malloc_size); |
| if (passwd_malloc == NULL) |
| goto err; |
| } |
| |
| if ((in == NULL) && (passwds == NULL)) { |
| /* build a null-terminated list */ |
| static char *passwds_static[2] = { NULL, NULL }; |
| |
| passwds = passwds_static; |
| if (in == NULL) |
| if (EVP_read_pw_string |
| (passwd_malloc, passwd_malloc_size, "Password: ", |
| !(passed_salt || in_noverify)) != 0) |
| goto err; |
| passwds[0] = passwd_malloc; |
| } |
| |
| if (in == NULL) { |
| assert(passwds != NULL); |
| assert(*passwds != NULL); |
| |
| do { /* loop over list of passwords */ |
| passwd = *passwds++; |
| if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, out, |
| quiet, table, reverse, pw_maxlen, usecrypt, use1, |
| useapr1)) |
| goto err; |
| } |
| while (*passwds != NULL); |
| } else |
| /* in != NULL */ |
| { |
| int done; |
| |
| assert(passwd != NULL); |
| do { |
| int r = BIO_gets(in, passwd, pw_maxlen + 1); |
| if (r > 0) { |
| char *c = (strchr(passwd, '\n')); |
| if (c != NULL) |
| *c = 0; /* truncate at newline */ |
| else { |
| /* ignore rest of line */ |
| char trash[BUFSIZ]; |
| do |
| r = BIO_gets(in, trash, sizeof trash); |
| while ((r > 0) && (!strchr(trash, '\n'))); |
| } |
| |
| if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, out, |
| quiet, table, reverse, pw_maxlen, usecrypt, |
| use1, useapr1)) |
| goto err; |
| } |
| done = (r <= 0); |
| } |
| while (!done); |
| } |
| ret = 0; |
| |
| err: |
| ERR_print_errors(bio_err); |
| if (salt_malloc) |
| OPENSSL_free(salt_malloc); |
| if (passwd_malloc) |
| OPENSSL_free(passwd_malloc); |
| if (in) |
| BIO_free(in); |
| if (out) |
| BIO_free_all(out); |
| apps_shutdown(); |
| OPENSSL_EXIT(ret); |
| } |
| |
| # ifndef NO_MD5CRYPT_1 |
| /* |
| * MD5-based password algorithm (should probably be available as a library |
| * function; then the static buffer would not be acceptable). For magic |
| * string "1", this should be compatible to the MD5-based BSD password |
| * algorithm. For 'magic' string "apr1", this is compatible to the MD5-based |
| * Apache password algorithm. (Apparently, the Apache password algorithm is |
| * identical except that the 'magic' string was changed -- the laziest |
| * application of the NIH principle I've ever encountered.) |
| */ |
| static char *md5crypt(const char *passwd, const char *magic, const char *salt) |
| { |
| /* "$apr1$..salt..$.......md5hash..........\0" */ |
| static char out_buf[6 + 9 + 24 + 2]; |
| unsigned char buf[MD5_DIGEST_LENGTH]; |
| char *salt_out; |
| int n; |
| unsigned int i; |
| EVP_MD_CTX md, md2; |
| size_t passwd_len, salt_len; |
| |
| passwd_len = strlen(passwd); |
| out_buf[0] = '$'; |
| out_buf[1] = 0; |
| assert(strlen(magic) <= 4); /* "1" or "apr1" */ |
| strncat(out_buf, magic, 4); |
| strncat(out_buf, "$", 1); |
| strncat(out_buf, salt, 8); |
| assert(strlen(out_buf) <= 6 + 8); /* "$apr1$..salt.." */ |
| salt_out = out_buf + 2 + strlen(magic); |
| salt_len = strlen(salt_out); |
| assert(salt_len <= 8); |
| |
| EVP_MD_CTX_init(&md); |
| EVP_DigestInit_ex(&md, EVP_md5(), NULL); |
| EVP_DigestUpdate(&md, passwd, passwd_len); |
| EVP_DigestUpdate(&md, "$", 1); |
| EVP_DigestUpdate(&md, magic, strlen(magic)); |
| EVP_DigestUpdate(&md, "$", 1); |
| EVP_DigestUpdate(&md, salt_out, salt_len); |
| |
| EVP_MD_CTX_init(&md2); |
| EVP_DigestInit_ex(&md2, EVP_md5(), NULL); |
| EVP_DigestUpdate(&md2, passwd, passwd_len); |
| EVP_DigestUpdate(&md2, salt_out, salt_len); |
| EVP_DigestUpdate(&md2, passwd, passwd_len); |
| EVP_DigestFinal_ex(&md2, buf, NULL); |
| |
| for (i = passwd_len; i > sizeof buf; i -= sizeof buf) |
| EVP_DigestUpdate(&md, buf, sizeof buf); |
| EVP_DigestUpdate(&md, buf, i); |
| |
| n = passwd_len; |
| while (n) { |
| EVP_DigestUpdate(&md, (n & 1) ? "\0" : passwd, 1); |
| n >>= 1; |
| } |
| EVP_DigestFinal_ex(&md, buf, NULL); |
| |
| for (i = 0; i < 1000; i++) { |
| EVP_DigestInit_ex(&md2, EVP_md5(), NULL); |
| EVP_DigestUpdate(&md2, (i & 1) ? (unsigned const char *)passwd : buf, |
| (i & 1) ? passwd_len : sizeof buf); |
| if (i % 3) |
| EVP_DigestUpdate(&md2, salt_out, salt_len); |
| if (i % 7) |
| EVP_DigestUpdate(&md2, passwd, passwd_len); |
| EVP_DigestUpdate(&md2, (i & 1) ? buf : (unsigned const char *)passwd, |
| (i & 1) ? sizeof buf : passwd_len); |
| EVP_DigestFinal_ex(&md2, buf, NULL); |
| } |
| EVP_MD_CTX_cleanup(&md2); |
| |
| { |
| /* transform buf into output string */ |
| |
| unsigned char buf_perm[sizeof buf]; |
| int dest, source; |
| char *output; |
| |
| /* silly output permutation */ |
| for (dest = 0, source = 0; dest < 14; |
| dest++, source = (source + 6) % 17) |
| buf_perm[dest] = buf[source]; |
| buf_perm[14] = buf[5]; |
| buf_perm[15] = buf[11]; |
| # ifndef PEDANTIC /* Unfortunately, this generates a "no |
| * effect" warning */ |
| assert(16 == sizeof buf_perm); |
| # endif |
| |
| output = salt_out + salt_len; |
| assert(output == out_buf + strlen(out_buf)); |
| |
| *output++ = '$'; |
| |
| for (i = 0; i < 15; i += 3) { |
| *output++ = cov_2char[buf_perm[i + 2] & 0x3f]; |
| *output++ = cov_2char[((buf_perm[i + 1] & 0xf) << 2) | |
| (buf_perm[i + 2] >> 6)]; |
| *output++ = cov_2char[((buf_perm[i] & 3) << 4) | |
| (buf_perm[i + 1] >> 4)]; |
| *output++ = cov_2char[buf_perm[i] >> 2]; |
| } |
| assert(i == 15); |
| *output++ = cov_2char[buf_perm[i] & 0x3f]; |
| *output++ = cov_2char[buf_perm[i] >> 6]; |
| *output = 0; |
| assert(strlen(out_buf) < sizeof(out_buf)); |
| } |
| EVP_MD_CTX_cleanup(&md); |
| |
| return out_buf; |
| } |
| # endif |
| |
| static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, |
| char *passwd, BIO *out, int quiet, int table, |
| int reverse, size_t pw_maxlen, int usecrypt, int use1, |
| int useapr1) |
| { |
| char *hash = NULL; |
| |
| assert(salt_p != NULL); |
| assert(salt_malloc_p != NULL); |
| |
| /* first make sure we have a salt */ |
| if (!passed_salt) { |
| # ifndef OPENSSL_NO_DES |
| if (usecrypt) { |
| if (*salt_malloc_p == NULL) { |
| *salt_p = *salt_malloc_p = OPENSSL_malloc(3); |
| if (*salt_malloc_p == NULL) |
| goto err; |
| } |
| if (RAND_pseudo_bytes((unsigned char *)*salt_p, 2) < 0) |
| goto err; |
| (*salt_p)[0] = cov_2char[(*salt_p)[0] & 0x3f]; /* 6 bits */ |
| (*salt_p)[1] = cov_2char[(*salt_p)[1] & 0x3f]; /* 6 bits */ |
| (*salt_p)[2] = 0; |
| # ifdef CHARSET_EBCDIC |
| ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will convert back |
| * to ASCII */ |
| # endif |
| } |
| # endif /* !OPENSSL_NO_DES */ |
| |
| # ifndef NO_MD5CRYPT_1 |
| if (use1 || useapr1) { |
| int i; |
| |
| if (*salt_malloc_p == NULL) { |
| *salt_p = *salt_malloc_p = OPENSSL_malloc(9); |
| if (*salt_malloc_p == NULL) |
| goto err; |
| } |
| if (RAND_pseudo_bytes((unsigned char *)*salt_p, 8) < 0) |
| goto err; |
| |
| for (i = 0; i < 8; i++) |
| (*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /* 6 bits */ |
| (*salt_p)[8] = 0; |
| } |
| # endif /* !NO_MD5CRYPT_1 */ |
| } |
| |
| assert(*salt_p != NULL); |
| |
| /* truncate password if necessary */ |
| if ((strlen(passwd) > pw_maxlen)) { |
| if (!quiet) |
| /* |
| * XXX: really we should know how to print a size_t, not cast it |
| */ |
| BIO_printf(bio_err, |
| "Warning: truncating password to %u characters\n", |
| (unsigned)pw_maxlen); |
| passwd[pw_maxlen] = 0; |
| } |
| assert(strlen(passwd) <= pw_maxlen); |
| |
| /* now compute password hash */ |
| # ifndef OPENSSL_NO_DES |
| if (usecrypt) |
| hash = DES_crypt(passwd, *salt_p); |
| # endif |
| # ifndef NO_MD5CRYPT_1 |
| if (use1 || useapr1) |
| hash = md5crypt(passwd, (use1 ? "1" : "apr1"), *salt_p); |
| # endif |
| assert(hash != NULL); |
| |
| if (table && !reverse) |
| BIO_printf(out, "%s\t%s\n", passwd, hash); |
| else if (table && reverse) |
| BIO_printf(out, "%s\t%s\n", hash, passwd); |
| else |
| BIO_printf(out, "%s\n", hash); |
| return 1; |
| |
| err: |
| return 0; |
| } |
| #else |
| |
| int MAIN(int argc, char **argv) |
| { |
| fputs("Program not available.\n", stderr) |
| OPENSSL_EXIT(1); |
| } |
| #endif |
