1 /* 2 * Copyright (c) 1997 - 2004 Kungliga Tekniska H�gskolan 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 RCSID("$Id: cpw.c 16755 2006-02-18 23:30:32Z lha $"); 38 39 struct cpw_entry_data { 40 int random_key; 41 int random_password; 42 char *password; 43 krb5_key_data *key_data; 44 }; 45 46 static int 47 set_random_key (krb5_principal principal) 48 { 49 krb5_error_code ret; 50 int i; 51 krb5_keyblock *keys; 52 int num_keys; 53 54 ret = kadm5_randkey_principal(kadm_handle, principal, &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 63 static int 64 set_random_password (krb5_principal principal) 65 { 66 krb5_error_code ret; 67 char pw[128]; 68 69 random_password (pw, sizeof(pw)); 70 ret = kadm5_chpass_principal(kadm_handle, principal, 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 83 static int 84 set_password (krb5_principal principal, char *password) 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(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(kadm_handle, principal, password); 105 memset(pwbuf, 0, sizeof(pwbuf)); 106 return ret; 107 } 108 109 static int 110 set_key_data (krb5_principal principal, krb5_key_data *key_data) 111 { 112 krb5_error_code ret; 113 114 ret = kadm5_chpass_principal_with_key (kadm_handle, principal, 115 3, key_data); 116 return ret; 117 } 118 119 static int 120 do_cpw_entry(krb5_principal principal, void *data) 121 { 122 struct cpw_entry_data *e = data; 123 124 if (e->random_key) 125 return set_random_key (principal); 126 else if (e->random_password) 127 return set_random_password (principal); 128 else if (e->key_data) 129 return set_key_data (principal, e->key_data); 130 else 131 return set_password (principal, e->password); 132 } 133 134 int 135 cpw_entry(struct passwd_options *opt, int argc, char **argv) 136 { 137 krb5_error_code ret = 0; 138 int i; 139 struct cpw_entry_data data; 140 int num; 141 krb5_key_data key_data[3]; 142 143 data.random_key = opt->random_key_flag; 144 data.random_password = opt->random_password_flag; 145 data.password = opt->password_string; 146 data.key_data = NULL; 147 148 num = 0; 149 if (data.random_key) 150 ++num; 151 if (data.random_password) 152 ++num; 153 if (data.password) 154 ++num; 155 if (opt->key_string) 156 ++num; 157 158 if (num > 1) { 159 fprintf (stderr, "give only one of " 160 "--random-key, --random-password, --password, --key\n"); 161 return 1; 162 } 163 164 if (opt->key_string) { 165 const char *error; 166 167 if (parse_des_key (opt->key_string, key_data, &error)) { 168 fprintf (stderr, "failed parsing key \"%s\": %s\n", 169 opt->key_string, error); 170 return 1; 171 } 172 data.key_data = key_data; 173 } 174 175 for(i = 0; i < argc; i++) 176 ret = foreach_principal(argv[i], do_cpw_entry, "cpw", &data); 177 178 if (data.key_data) { 179 int16_t dummy; 180 kadm5_free_key_data (kadm_handle, &dummy, key_data); 181 } 182 183 return ret != 0; 184 } 185