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/*
Unix SMB/CIFS implementation.
dump the remote SAM using rpc samsync operations
Copyright (C) Guenther Deschner 2008.
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 "libnet/libnet.h"
#ifdef HAVE_KRB5
/****************************************************************
****************************************************************/
static int keytab_close(struct libnet_keytab_context *ctx)
{
if (!ctx) {
return 0;
}
if (ctx->keytab && ctx->context) {
krb5_kt_close(ctx->context, ctx->keytab);
}
if (ctx->context) {
krb5_free_context(ctx->context);
}
if (ctx->ads) {
ads_destroy(&ctx->ads);
}
TALLOC_FREE(ctx);
return 0;
}
/****************************************************************
****************************************************************/
krb5_error_code libnet_keytab_init(TALLOC_CTX *mem_ctx,
const char *keytab_name,
struct libnet_keytab_context **ctx)
{
krb5_error_code ret = 0;
krb5_context context = NULL;
krb5_keytab keytab = NULL;
const char *keytab_string = NULL;
struct libnet_keytab_context *r;
r = TALLOC_ZERO_P(mem_ctx, struct libnet_keytab_context);
if (!r) {
return ENOMEM;
}
talloc_set_destructor(r, keytab_close);
initialize_krb5_error_table();
ret = krb5_init_context(&context);
if (ret) {
DEBUG(1,("keytab_init: could not krb5_init_context: %s\n",
error_message(ret)));
return ret;
}
ret = smb_krb5_open_keytab(context, keytab_name, true, &keytab);
if (ret) {
DEBUG(1,("keytab_init: smb_krb5_open_keytab failed (%s)\n",
error_message(ret)));
krb5_free_context(context);
return ret;
}
ret = smb_krb5_keytab_name(mem_ctx, context, keytab, &keytab_string);
if (ret) {
krb5_kt_close(context, keytab);
krb5_free_context(context);
return ret;
}
r->context = context;
r->keytab = keytab;
r->keytab_name = keytab_string;
*ctx = r;
return 0;
}
/****************************************************************
****************************************************************/
krb5_error_code libnet_keytab_add(struct libnet_keytab_context *ctx)
{
#if defined(ENCTYPE_ARCFOUR_HMAC)
krb5_error_code ret = 0;
krb5_enctype enctypes[2] = { ENCTYPE_ARCFOUR_HMAC, 0 };
int i;
for (i=0; i<ctx->count; i++) {
struct libnet_keytab_entry *entry = &ctx->entries[i];
krb5_data password;
password.data = (char *)entry->password.data;
password.length = entry->password.length;
ret = smb_krb5_kt_add_entry_ext(ctx->context,
ctx->keytab,
entry->kvno,
entry->principal,
enctypes,
password,
true,
true);
if (ret) {
DEBUG(1,("libnet_keytab_add: "
"Failed to add entry to keytab file\n"));
return ret;
}
}
return ret;
#else
return -1;
#endif /* defined(ENCTYPE_ARCFOUR_HMAC) */
}
#endif /* HAVE_KRB5 */
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