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 37 struct cpw_entry_data { 38 int random_key; 39 int random_password; 40 char *password; 41 krb5_key_data *key_data; 42 }; 43 44 static int 45 set_random_key (krb5_principal principal) 46 { 47 krb5_error_code ret; 48 int i; 49 krb5_keyblock *keys; 50 int num_keys; 51 52 ret = kadm5_randkey_principal(kadm_handle, principal, &keys, &num_keys); 53 if(ret) 54 return ret; 55 for(i = 0; i < num_keys; i++) 56 krb5_free_keyblock_contents(context, &keys[i]); 57 free(keys); 58 return 0; 59 } 60 61 static int 62 set_random_password (krb5_principal principal) 63 { 64 krb5_error_code ret; 65 char pw[128]; 66 67 random_password (pw, sizeof(pw)); 68 ret = kadm5_chpass_principal(kadm_handle, principal, pw); 69 if (ret == 0) { 70 char *princ_name; 71 72 krb5_unparse_name(context, principal, &princ_name); 73 74 printf ("%s's password set to \"%s\"\n", princ_name, pw); 75 free (princ_name); 76 } 77 memset (pw, 0, sizeof(pw)); 78 return ret; 79 } 80 81 static int 82 set_password (krb5_principal principal, char *password) 83 { 84 krb5_error_code ret = 0; 85 char pwbuf[128]; 86 87 if(password == NULL) { 88 char *princ_name; 89 char *prompt; 90 91 krb5_unparse_name(context, principal, &princ_name); 92 asprintf(&prompt, "%s's Password: ", princ_name); 93 free (princ_name); 94 ret = UI_UTIL_read_pw_string(pwbuf, sizeof(pwbuf), prompt, 1); 95 free (prompt); 96 if(ret){ 97 return 0; /* XXX error code? */ 98 } 99 password = pwbuf; 100 } 101 if(ret == 0) 102 ret = kadm5_chpass_principal(kadm_handle, principal, password); 103 memset(pwbuf, 0, sizeof(pwbuf)); 104 return ret; 105 } 106 107 static int 108 set_key_data (krb5_principal principal, krb5_key_data *key_data) 109 { 110 krb5_error_code ret; 111 112 ret = kadm5_chpass_principal_with_key (kadm_handle, principal, 113 3, key_data); 114 return ret; 115 } 116 117 static int 118 do_cpw_entry(krb5_principal principal, void *data) 119 { 120 struct cpw_entry_data *e = data; 121 122 if (e->random_key) 123 return set_random_key (principal); 124 else if (e->random_password) 125 return set_random_password (principal); 126 else if (e->key_data) 127 return set_key_data (principal, e->key_data); 128 else 129 return set_password (principal, e->password); 130 } 131 132 int 133 cpw_entry(struct passwd_options *opt, int argc, char **argv) 134 { 135 krb5_error_code ret = 0; 136 int i; 137 struct cpw_entry_data data; 138 int num; 139 krb5_key_data key_data[3]; 140 141 data.random_key = opt->random_key_flag; 142 data.random_password = opt->random_password_flag; 143 data.password = opt->password_string; 144 data.key_data = NULL; 145 146 num = 0; 147 if (data.random_key) 148 ++num; 149 if (data.random_password) 150 ++num; 151 if (data.password) 152 ++num; 153 if (opt->key_string) 154 ++num; 155 156 if (num > 1) { 157 fprintf (stderr, "give only one of " 158 "--random-key, --random-password, --password, --key\n"); 159 return 1; 160 } 161 162 if (opt->key_string) { 163 const char *error; 164 165 if (parse_des_key (opt->key_string, key_data, &error)) { 166 fprintf (stderr, "failed parsing key \"%s\": %s\n", 167 opt->key_string, error); 168 return 1; 169 } 170 data.key_data = key_data; 171 } 172 173 for(i = 0; i < argc; i++) 174 ret = foreach_principal(argv[i], do_cpw_entry, "cpw", &data); 175 176 if (data.key_data) { 177 int16_t dummy; 178 kadm5_free_key_data (kadm_handle, &dummy, key_data); 179 } 180 181 return ret != 0; 182 } 183