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freebsd/crypto/heimdal/admin/srvconvert.c
2000-01-09 20:58:00 +00:00

182 lines
5.0 KiB
C

/*
* Copyright (c) 1997, 1998, 1999 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: srvconvert.c,v 1.11 2000/01/02 03:56:21 assar Exp $");
/* convert a version 4 srvtab to a version 5 keytab */
#ifndef KEYFILE
#define KEYFILE "/etc/srvtab"
#endif
static char *srvtab = KEYFILE;
static int help_flag;
static int verbose;
static struct getargs args[] = {
{ "srvtab", 's', arg_string, &srvtab, "srvtab to convert", "file" },
{ "help", 'h', arg_flag, &help_flag },
{ "verbose", 'v', arg_flag, &verbose },
};
static int num_args = sizeof(args) / sizeof(args[0]);
int
srvconv(int argc, char **argv)
{
krb5_error_code ret;
int optind = 0;
int fd;
krb5_storage *sp;
if(getarg(args, num_args, argc, argv, &optind)){
arg_printusage(args, num_args, "ktutil srvconvert", "");
return 1;
}
if(help_flag){
arg_printusage(args, num_args, "ktutil srvconvert", "");
return 0;
}
argc -= optind;
argv += optind;
if (argc != 0) {
arg_printusage(args, num_args, "ktutil srvconvert", "");
return 1;
}
fd = open(srvtab, O_RDONLY);
if(fd < 0){
krb5_warn(context, errno, "%s", srvtab);
return 1;
}
sp = krb5_storage_from_fd(fd);
if(sp == NULL){
close(fd);
return 1;
}
while(1){
char *service, *instance, *realm;
int8_t kvno;
des_cblock key;
krb5_keytab_entry entry;
ret = krb5_ret_stringz(sp, &service);
if(ret == KRB5_CC_END) {
ret = 0;
break;
}
if(ret) {
krb5_warn(context, ret, "reading service");
break;
}
ret = krb5_ret_stringz(sp, &instance);
if(ret) {
krb5_warn(context, ret, "reading instance");
free(service);
break;
}
ret = krb5_ret_stringz(sp, &realm);
if(ret) {
krb5_warn(context, ret, "reading realm");
free(service);
free(instance);
break;
}
ret = krb5_425_conv_principal(context, service, instance, realm,
&entry.principal);
free(service);
free(instance);
free(realm);
if (ret) {
krb5_warn(context, ret, "krb5_425_conv_principal (%s.%s@%s)",
service, instance, realm);
break;
}
ret = krb5_ret_int8(sp, &kvno);
if(ret) {
krb5_warn(context, ret, "reading kvno");
krb5_free_principal(context, entry.principal);
break;
}
ret = sp->fetch(sp, key, 8);
if(ret < 0){
krb5_warn(context, errno, "reading key");
krb5_free_principal(context, entry.principal);
break;
}
if(ret < 8) {
krb5_warn(context, errno, "end of file while reading key");
krb5_free_principal(context, entry.principal);
break;
}
entry.vno = kvno;
entry.timestamp = time (NULL);
entry.keyblock.keyvalue.data = key;
entry.keyblock.keyvalue.length = 8;
if(verbose){
char *p;
ret = krb5_unparse_name(context, entry.principal, &p);
if(ret){
krb5_warn(context, ret, "krb5_unparse_name");
krb5_free_principal(context, entry.principal);
break;
} else{
fprintf(stderr, "Storing keytab for %s\n", p);
free(p);
}
}
entry.keyblock.keytype = ETYPE_DES_CBC_MD5;
ret = krb5_kt_add_entry(context, keytab, &entry);
entry.keyblock.keytype = ETYPE_DES_CBC_MD4;
ret = krb5_kt_add_entry(context, keytab, &entry);
entry.keyblock.keytype = ETYPE_DES_CBC_CRC;
ret = krb5_kt_add_entry(context, keytab, &entry);
krb5_free_principal(context, entry.principal);
if(ret) {
krb5_warn(context, ret, "krb5_kt_add_entry");
break;
}
}
krb5_storage_free(sp);
close(fd);
return ret;
}