249 lines
6.6 KiB
C
249 lines
6.6 KiB
C
/*
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* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "ktutil_locl.h"
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RCSID("$Id: copy.c,v 1.7 2001/05/11 00:54:01 assar Exp $");
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static krb5_boolean
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compare_keyblock(const krb5_keyblock *a, const krb5_keyblock *b)
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{
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if(a->keytype != b->keytype ||
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a->keyvalue.length != b->keyvalue.length ||
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memcmp(a->keyvalue.data, b->keyvalue.data, a->keyvalue.length) != 0)
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return FALSE;
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return TRUE;
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}
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static int
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kt_copy_int (const char *from, const char *to)
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{
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krb5_error_code ret;
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krb5_keytab src_keytab, dst_keytab;
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krb5_kt_cursor cursor;
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krb5_keytab_entry entry, dummy;
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ret = krb5_kt_resolve (context, from, &src_keytab);
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if (ret) {
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krb5_warn (context, ret, "resolving src keytab `%s'", from);
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return 1;
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}
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ret = krb5_kt_resolve (context, to, &dst_keytab);
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if (ret) {
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krb5_kt_close (context, src_keytab);
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krb5_warn (context, ret, "resolving dst keytab `%s'", to);
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return 1;
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}
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ret = krb5_kt_start_seq_get (context, src_keytab, &cursor);
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if (ret) {
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krb5_warn (context, ret, "krb5_kt_start_seq_get %s", keytab_string);
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goto out;
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}
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if (verbose_flag)
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fprintf(stderr, "copying %s to %s\n", from, to);
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while((ret = krb5_kt_next_entry(context, src_keytab,
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&entry, &cursor)) == 0) {
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char *name_str;
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char *etype_str;
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krb5_unparse_name (context, entry.principal, &name_str);
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krb5_enctype_to_string(context, entry.keyblock.keytype, &etype_str);
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ret = krb5_kt_get_entry(context, dst_keytab,
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entry.principal,
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entry.vno,
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entry.keyblock.keytype,
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&dummy);
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if(ret == 0) {
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/* this entry is already in the new keytab, so no need to
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copy it; if the keyblocks are not the same, something
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is weird, so complain about that */
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if(!compare_keyblock(&entry.keyblock, &dummy.keyblock)) {
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krb5_warnx(context, "entry with different keyvalue "
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"already exists for %s, keytype %s, kvno %d",
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name_str, etype_str, entry.vno);
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}
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krb5_kt_free_entry(context, &dummy);
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krb5_kt_free_entry (context, &entry);
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free(name_str);
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free(etype_str);
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continue;
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} else if(ret != KRB5_KT_NOTFOUND) {
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krb5_warn(context, ret, "krb5_kt_get_entry(%s)", name_str);
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krb5_kt_free_entry (context, &entry);
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free(name_str);
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free(etype_str);
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break;
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}
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if (verbose_flag)
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fprintf (stderr, "copying %s, keytype %s, kvno %d\n", name_str,
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etype_str, entry.vno);
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ret = krb5_kt_add_entry (context, dst_keytab, &entry);
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krb5_kt_free_entry (context, &entry);
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if (ret) {
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krb5_warn (context, ret, "krb5_kt_add_entry(%s)", name_str);
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free(name_str);
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free(etype_str);
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break;
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}
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free(name_str);
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free(etype_str);
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}
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krb5_kt_end_seq_get (context, src_keytab, &cursor);
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out:
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krb5_kt_close (context, src_keytab);
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krb5_kt_close (context, dst_keytab);
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return 0;
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}
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int
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kt_copy (int argc, char **argv)
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{
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int help_flag = 0;
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int optind = 0;
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struct getargs args[] = {
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{ "help", 'h', arg_flag, NULL}
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};
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int num_args = sizeof(args) / sizeof(args[0]);
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int i = 0;
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args[i++].value = &help_flag;
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args[i++].value = &verbose_flag;
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if(getarg(args, num_args, argc, argv, &optind)) {
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arg_printusage(args, num_args, "ktutil copy",
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"keytab-src keytab-dest");
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return 1;
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}
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if (help_flag) {
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arg_printusage(args, num_args, "ktutil copy",
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"keytab-src keytab-dest");
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return 1;
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}
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argv += optind;
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argc -= optind;
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if (argc != 2) {
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arg_printusage(args, num_args, "ktutil copy",
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"keytab-src keytab-dest");
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return 1;
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}
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return kt_copy_int(argv[0], argv[1]);
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}
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#ifndef KEYFILE
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#define KEYFILE "/etc/srvtab"
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#endif
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/* copy to from v4 srvtab, just short for copy */
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static int
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conv(int srvconv, int argc, char **argv)
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{
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int help_flag = 0;
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char *srvtab = KEYFILE;
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int optind = 0;
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char kt4[1024], kt5[1024];
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char *name;
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struct getargs args[] = {
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{ "srvtab", 's', arg_string, NULL},
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{ "help", 'h', arg_flag, NULL}
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};
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int num_args = sizeof(args) / sizeof(args[0]);
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int i = 0;
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args[i++].value = &srvtab;
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args[i++].value = &help_flag;
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if(srvconv)
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name = "ktutil srvconvert";
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else
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name = "ktutil srvcreate";
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if(getarg(args, num_args, argc, argv, &optind)){
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arg_printusage(args, num_args, name, "");
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return 1;
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}
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if(help_flag){
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arg_printusage(args, num_args, name, "");
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return 0;
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}
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argc -= optind;
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argv += optind;
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if (argc != 0) {
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arg_printusage(args, num_args, name, "");
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return 1;
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}
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snprintf(kt4, sizeof(kt4), "krb4:%s", srvtab);
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if(srvconv) {
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if(keytab_string != NULL)
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return kt_copy_int(kt4, keytab_string);
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else {
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krb5_kt_default_modify_name(context, kt5, sizeof(kt5));
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return kt_copy_int(kt4, kt5);
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}
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} else {
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if(keytab_string != NULL)
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return kt_copy_int(keytab_string, kt4);
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krb5_kt_default_name(context, kt5, sizeof(kt5));
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return kt_copy_int(kt5, kt4);
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}
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}
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int
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srvconv(int argc, char **argv)
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{
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return conv(1, argc, argv);
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}
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int
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srvcreate(int argc, char **argv)
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{
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return conv(0, argc, argv);
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}
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