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/*
Unix SMB/CIFS implementation.
Minimal ktutil for selftest
Copyright (C) Ralph Boehme <slow@samba.org> 2016
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "krb5_wrap/krb5_samba.h"
static void smb_krb5_err(TALLOC_CTX *mem_ctx,
krb5_context context,
int exit_code,
krb5_error_code code,
const char *msg)
{
char *krb5_err_str = smb_get_krb5_error_message(context,
code,
mem_ctx);
printf("%s: %s\n", msg, krb5_err_str ? krb5_err_str : "UNKNOWN");
talloc_free(mem_ctx);
exit(exit_code);
}
int main (int argc, char **argv)
{
TALLOC_CTX *mem_ctx = talloc_init("ktutil");
krb5_context context;
krb5_keytab keytab;
krb5_kt_cursor cursor;
krb5_keytab_entry entry;
krb5_error_code ret;
char *keytab_name = NULL;
if (mem_ctx == NULL) {
printf("talloc_init() failed\n");
exit(1);
}
if (argc != 2) {
printf("Usage: %s KEYTAB\n", argv[0]);
exit(1);
}
keytab_name = argv[1];
ret = smb_krb5_init_context_common(&context);
if (ret) {
DBG_ERR("kerberos init context failed (%s)\n",
error_message(ret));
smb_krb5_err(mem_ctx, context, 1, ret, "krb5_context");
}
ret = smb_krb5_kt_open_relative(context, keytab_name, false, &keytab);
if (ret) {
smb_krb5_err(mem_ctx, context, 1, ret, "open keytab");
}
ret = krb5_kt_start_seq_get(context, keytab, &cursor);
if (ret) {
smb_krb5_err(mem_ctx, context, 1, ret, "krb5_kt_start_seq_get");
}
for (ret = krb5_kt_next_entry(context, keytab, &entry, &cursor);
ret == 0;
ret = krb5_kt_next_entry(context, keytab, &entry, &cursor))
{
char *principal = NULL;
char *enctype_str = NULL;
krb5_enctype enctype = smb_krb5_kt_get_enctype_from_entry(&entry);
ret = smb_krb5_unparse_name(mem_ctx,
context,
entry.principal,
&principal);
if (ret) {
smb_krb5_err(mem_ctx, context, 1, ret, "krb5_enctype_to_string");
}
ret = smb_krb5_enctype_to_string(context,
enctype,
&enctype_str);
if (ret) {
printf("%s (%d)\n", principal, (int)enctype);
} else {
printf("%s (%s)\n", principal, enctype_str);
}
TALLOC_FREE(principal);
SAFE_FREE(enctype_str);
smb_krb5_kt_free_entry(context, &entry);
}
ret = krb5_kt_end_seq_get(context, keytab, &cursor);
if (ret) {
smb_krb5_err(mem_ctx, context, 1, ret, "krb5_kt_end_seq_get");
}
ret = krb5_kt_close(context, keytab);
if (ret) {
smb_krb5_err(mem_ctx, context, 1, ret, "krb5_kt_close");
}
krb5_free_context(context);
talloc_free(mem_ctx);
return 0;
}
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