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/*
* Copyright (c) 1997 - 2001 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: copy.c,v 1.9 2003/01/16 18:59:03 lha Exp $");
static krb5_boolean
compare_keyblock(const krb5_keyblock *a, const krb5_keyblock *b)
{
if(a->keytype != b->keytype ||
a->keyvalue.length != b->keyvalue.length ||
memcmp(a->keyvalue.data, b->keyvalue.data, a->keyvalue.length) != 0)
return FALSE;
return TRUE;
}
static int
kt_copy_int (const char *from, const char *to)
{
krb5_error_code ret;
krb5_keytab src_keytab, dst_keytab;
krb5_kt_cursor cursor;
krb5_keytab_entry entry, dummy;
ret = krb5_kt_resolve (context, from, &src_keytab);
if (ret) {
krb5_warn (context, ret, "resolving src keytab `%s'", from);
return 1;
}
ret = krb5_kt_resolve (context, to, &dst_keytab);
if (ret) {
krb5_kt_close (context, src_keytab);
krb5_warn (context, ret, "resolving dst keytab `%s'", to);
return 1;
}
ret = krb5_kt_start_seq_get (context, src_keytab, &cursor);
if (ret) {
krb5_warn (context, ret, "krb5_kt_start_seq_get %s", keytab_string);
goto out;
}
if (verbose_flag)
fprintf(stderr, "copying %s to %s\n", from, to);
while((ret = krb5_kt_next_entry(context, src_keytab,
&entry, &cursor)) == 0) {
char *name_str;
char *etype_str;
krb5_unparse_name (context, entry.principal, &name_str);
krb5_enctype_to_string(context, entry.keyblock.keytype, &etype_str);
ret = krb5_kt_get_entry(context, dst_keytab,
entry.principal,
entry.vno,
entry.keyblock.keytype,
&dummy);
if(ret == 0) {
/* this entry is already in the new keytab, so no need to
copy it; if the keyblocks are not the same, something
is weird, so complain about that */
if(!compare_keyblock(&entry.keyblock, &dummy.keyblock)) {
krb5_warnx(context, "entry with different keyvalue "
"already exists for %s, keytype %s, kvno %d",
name_str, etype_str, entry.vno);
}
krb5_kt_free_entry(context, &dummy);
krb5_kt_free_entry (context, &entry);
free(name_str);
free(etype_str);
continue;
} else if(ret != KRB5_KT_NOTFOUND) {
krb5_warn(context, ret, "krb5_kt_get_entry(%s)", name_str);
krb5_kt_free_entry (context, &entry);
free(name_str);
free(etype_str);
break;
}
if (verbose_flag)
fprintf (stderr, "copying %s, keytype %s, kvno %d\n", name_str,
etype_str, entry.vno);
ret = krb5_kt_add_entry (context, dst_keytab, &entry);
krb5_kt_free_entry (context, &entry);
if (ret) {
krb5_warn (context, ret, "krb5_kt_add_entry(%s)", name_str);
free(name_str);
free(etype_str);
break;
}
free(name_str);
free(etype_str);
}
krb5_kt_end_seq_get (context, src_keytab, &cursor);
out:
krb5_kt_close (context, src_keytab);
krb5_kt_close (context, dst_keytab);
return 0;
}
int
kt_copy (int argc, char **argv)
{
int help_flag = 0;
int optind = 0;
struct getargs args[] = {
{ "help", 'h', arg_flag, NULL}
};
int num_args = sizeof(args) / sizeof(args[0]);
int i = 0;
args[i++].value = &help_flag;
if(getarg(args, num_args, argc, argv, &optind)) {
arg_printusage(args, num_args, "ktutil copy",
"keytab-src keytab-dest");
return 1;
}
if (help_flag) {
arg_printusage(args, num_args, "ktutil copy",
"keytab-src keytab-dest");
return 1;
}
argv += optind;
argc -= optind;
if (argc != 2) {
arg_printusage(args, num_args, "ktutil copy",
"keytab-src keytab-dest");
return 1;
}
return kt_copy_int(argv[0], argv[1]);
}
#ifndef KEYFILE
#define KEYFILE SYSCONFDIR "/srvtab"
#endif
/* copy to from v4 srvtab, just short for copy */
static int
conv(int srvconv, int argc, char **argv)
{
int help_flag = 0;
char *srvtab = KEYFILE;
int optind = 0;
char kt4[1024], kt5[1024];
char *name;
struct getargs args[] = {
{ "srvtab", 's', arg_string, NULL},
{ "help", 'h', arg_flag, NULL}
};
int num_args = sizeof(args) / sizeof(args[0]);
int i = 0;
args[i++].value = &srvtab;
args[i++].value = &help_flag;
if(srvconv)
name = "ktutil srvconvert";
else
name = "ktutil srvcreate";
if(getarg(args, num_args, argc, argv, &optind)){
arg_printusage(args, num_args, name, "");
return 1;
}
if(help_flag){
arg_printusage(args, num_args, name, "");
return 0;
}
argc -= optind;
argv += optind;
if (argc != 0) {
arg_printusage(args, num_args, name, "");
return 1;
}
snprintf(kt4, sizeof(kt4), "krb4:%s", srvtab);
if(srvconv) {
if(keytab_string != NULL)
return kt_copy_int(kt4, keytab_string);
else {
krb5_kt_default_modify_name(context, kt5, sizeof(kt5));
return kt_copy_int(kt4, kt5);
}
} else {
if(keytab_string != NULL)
return kt_copy_int(keytab_string, kt4);
krb5_kt_default_name(context, kt5, sizeof(kt5));
return kt_copy_int(kt5, kt4);
}
}
int
srvconv(int argc, char **argv)
{
return conv(1, argc, argv);
}
int
srvcreate(int argc, char **argv)
{
return conv(0, argc, argv);
}
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