1/* 2 * Copyright (c) 1997 - 2004 Kungliga Tekniska Högskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#include "kadmin_locl.h" 35#include "kadmin-commands.h" 36 37struct cpw_entry_data { 38 int keepold; 39 int random_key; 40 int random_password; 41 char *password; 42 krb5_key_data *key_data; 43}; 44 45static int 46set_random_key (krb5_principal principal, int keepold) 47{ 48 krb5_error_code ret; 49 int i; 50 krb5_keyblock *keys; 51 int num_keys; 52 53 ret = kadm5_randkey_principal_3(kadm_handle, principal, keepold, 0, NULL, 54 &keys, &num_keys); 55 if(ret) 56 return ret; 57 for(i = 0; i < num_keys; i++) 58 krb5_free_keyblock_contents(context, &keys[i]); 59 free(keys); 60 return 0; 61} 62 63static int 64set_random_password (krb5_principal principal, int keepold) 65{ 66 krb5_error_code ret; 67 char pw[128]; 68 69 random_password (pw, sizeof(pw)); 70 ret = kadm5_chpass_principal_3(kadm_handle, principal, keepold, 0, NULL, pw); 71 if (ret == 0) { 72 char *princ_name; 73 74 krb5_unparse_name(context, principal, &princ_name); 75 76 printf ("%s's password set to \"%s\"\n", princ_name, pw); 77 free (princ_name); 78 } 79 memset (pw, 0, sizeof(pw)); 80 return ret; 81} 82 83static int 84set_password (krb5_principal principal, char *password, int keepold) 85{ 86 krb5_error_code ret = 0; 87 char pwbuf[128]; 88 89 if(password == NULL) { 90 char *princ_name; 91 char *prompt; 92 93 krb5_unparse_name(context, principal, &princ_name); 94 asprintf(&prompt, "%s's Password: ", princ_name); 95 free (princ_name); 96 ret = UI_UTIL_read_pw_string_stdio(pwbuf, sizeof(pwbuf), prompt, 1); 97 free (prompt); 98 if(ret){ 99 return 0; /* XXX error code? */ 100 } 101 password = pwbuf; 102 } 103 if(ret == 0) 104 ret = kadm5_chpass_principal_3(kadm_handle, principal, keepold, 0, NULL, 105 password); 106 memset(pwbuf, 0, sizeof(pwbuf)); 107 return ret; 108} 109 110static int 111set_key_data (krb5_principal principal, krb5_key_data *key_data, int keepold) 112{ 113 krb5_error_code ret; 114 115 ret = kadm5_chpass_principal_with_key_3(kadm_handle, principal, keepold, 116 3, key_data); 117 return ret; 118} 119 120static int 121do_cpw_entry(krb5_principal principal, void *data) 122{ 123 struct cpw_entry_data *e = data; 124 125 if (e->random_key) 126 return set_random_key (principal, e->keepold); 127 else if (e->random_password) 128 return set_random_password (principal, e->keepold); 129 else if (e->key_data) 130 return set_key_data (principal, e->key_data, e->keepold); 131 else 132 return set_password (principal, e->password, e->keepold); 133} 134 135int 136cpw_entry(struct passwd_options *opt, int argc, char **argv) 137{ 138 krb5_error_code ret = 0; 139 int i; 140 struct cpw_entry_data data; 141 int num; 142 krb5_key_data key_data[3]; 143 144 data.keepold = opt->keepold_flag; 145 data.random_key = opt->random_key_flag; 146 data.random_password = opt->random_password_flag; 147 data.password = opt->password_string; 148 data.key_data = NULL; 149 150 num = 0; 151 if (data.random_key) 152 ++num; 153 if (data.random_password) 154 ++num; 155 if (data.password) 156 ++num; 157 if (opt->key_string) 158 ++num; 159 160 if (num > 1) { 161 fprintf (stderr, "give only one of " 162 "--random-key, --random-password, --password, --key\n"); 163 return 1; 164 } 165 166 if (opt->key_string) { 167 const char *error; 168 169 if (parse_des_key (opt->key_string, key_data, &error)) { 170 fprintf (stderr, "failed parsing key \"%s\": %s\n", 171 opt->key_string, error); 172 return 1; 173 } 174 data.key_data = key_data; 175 } 176 177 for(i = 0; i < argc; i++) 178 ret = foreach_principal(argv[i], do_cpw_entry, "cpw", &data); 179 180 if (data.key_data) { 181 int16_t dummy; 182 kadm5_free_key_data (kadm_handle, &dummy, key_data); 183 } 184 185 return ret != 0; 186} 187