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/*
* Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "ktutil_locl.h"
RCSID("$Id: add.c,v 1.5 2002/09/10 19:26:52 joda Exp $");
int
kt_add(int argc, char **argv)
{
krb5_error_code ret;
krb5_keytab keytab;
krb5_keytab_entry entry;
char buf[128];
char *principal_string = NULL;
int kvno = -1;
char *enctype_string = NULL;
krb5_enctype enctype;
char *password_string = NULL;
int salt_flag = 1;
int random_flag = 0;
int help_flag = 0;
struct getargs args[] = {
{ "principal", 'p', arg_string, NULL, "principal of key", "principal"},
{ "kvno", 'V', arg_integer, NULL, "key version of key" },
{ "enctype", 'e', arg_string, NULL, "encryption type of key" },
{ "password", 'w', arg_string, NULL, "password for key"},
{ "salt", 's', arg_negative_flag, NULL, "no salt" },
{ "random", 'r', arg_flag, NULL, "generate random key" },
{ "help", 'h', arg_flag, NULL }
};
int num_args = sizeof(args) / sizeof(args[0]);
int optind = 0;
int i = 0;
args[i++].value = &principal_string;
args[i++].value = &kvno;
args[i++].value = &enctype_string;
args[i++].value = &password_string;
args[i++].value = &salt_flag;
args[i++].value = &random_flag;
args[i++].value = &help_flag;
if(getarg(args, num_args, argc, argv, &optind)) {
arg_printusage(args, num_args, "ktutil add", "");
return 1;
}
if(help_flag) {
arg_printusage(args, num_args, "ktutil add", "");
return 1;
}
if((keytab = ktutil_open_keytab()) == NULL)
return 1;
memset(&entry, 0, sizeof(entry));
if(principal_string == NULL) {
printf("Principal: ");
if (fgets(buf, sizeof(buf), stdin) == NULL)
return 1;
buf[strcspn(buf, "\r\n")] = '\0';
principal_string = buf;
}
ret = krb5_parse_name(context, principal_string, &entry.principal);
if(ret) {
krb5_warn(context, ret, "%s", principal_string);
goto out;
}
if(enctype_string == NULL) {
printf("Encryption type: ");
if (fgets(buf, sizeof(buf), stdin) == NULL)
goto out;
buf[strcspn(buf, "\r\n")] = '\0';
enctype_string = buf;
}
ret = krb5_string_to_enctype(context, enctype_string, &enctype);
if(ret) {
int t;
if(sscanf(enctype_string, "%d", &t) == 1)
enctype = t;
else {
krb5_warn(context, ret, "%s", enctype_string);
goto out;
}
}
if(kvno == -1) {
printf("Key version: ");
if (fgets(buf, sizeof(buf), stdin) == NULL)
goto out;
buf[strcspn(buf, "\r\n")] = '\0';
kvno = atoi(buf);
}
if(password_string == NULL && random_flag == 0) {
if(des_read_pw_string(buf, sizeof(buf), "Password: ", 1))
goto out;
password_string = buf;
}
if(password_string) {
if (!salt_flag) {
krb5_salt salt;
krb5_data pw;
salt.salttype = KRB5_PW_SALT;
salt.saltvalue.data = NULL;
salt.saltvalue.length = 0;
pw.data = (void*)password_string;
pw.length = strlen(password_string);
krb5_string_to_key_data_salt(context, enctype, pw, salt,
&entry.keyblock);
} else {
krb5_string_to_key(context, enctype, password_string,
entry.principal, &entry.keyblock);
}
memset (password_string, 0, strlen(password_string));
} else {
krb5_generate_random_keyblock(context, enctype, &entry.keyblock);
}
entry.vno = kvno;
entry.timestamp = time (NULL);
ret = krb5_kt_add_entry(context, keytab, &entry);
if(ret)
krb5_warn(context, ret, "add");
out:
krb5_kt_free_entry(context, &entry);
krb5_kt_close(context, keytab);
return 0;
}
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