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samba-mirror/source4/kdc/hdb-samba4-plugin.c
Andrew Bartlett e758f41113 kdc: Add belts-and-braces check that we fail if the hdb version changes
This checks both if host system run-time Heimdal has changed version,
and that the build-time version is supported.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-By: Jelmer Vernooij <jelmer@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Jan 20 22:26:49 CET 2014 on sn-devel-104
2014-01-20 22:26:49 +01:00

107 lines
3.2 KiB
C

/*
Unix SMB/CIFS implementation.
KDC Server startup
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-20011
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 "kdc/kdc-glue.h"
#include "kdc/db-glue.h"
#include "lib/util/samba_util.h"
#include "lib/param/param.h"
#include "source4/lib/events/events.h"
static krb5_error_code hdb_samba4_create(krb5_context context, struct HDB **db, const char *arg)
{
NTSTATUS nt_status;
void *ptr;
struct samba_kdc_base_context *base_ctx;
if (sscanf(arg, "&%p", &ptr) == 1) {
base_ctx = talloc_get_type_abort(ptr, struct samba_kdc_base_context);
} else if (arg[0] == '\0' || file_exist(arg)) {
/* This mode for use in kadmin, rather than in Samba */
setup_logging("hdb_samba4", DEBUG_DEFAULT_STDERR);
base_ctx = talloc_zero(NULL, struct samba_kdc_base_context);
if (!base_ctx) {
return ENOMEM;
}
base_ctx->ev_ctx = s4_event_context_init(base_ctx);
base_ctx->lp_ctx = loadparm_init_global(false);
if (arg[0]) {
lpcfg_load(base_ctx->lp_ctx, arg);
} else {
lpcfg_load_default(base_ctx->lp_ctx);
}
} else {
return EINVAL;
}
/* The global kdc_mem_ctx and kdc_lp_ctx, Disgusting, ugly hack, but it means one less private hook */
nt_status = hdb_samba4_create_kdc(base_ctx, context, db);
if (NT_STATUS_IS_OK(nt_status)) {
return 0;
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ERROR_DS_INCOMPATIBLE_VERSION)) {
return EINVAL;
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_CANT_ACCESS_DOMAIN_INFO)) {
krb5_set_error_message(context, EINVAL, "Failed to open Samba4 LDB at %s", lpcfg_private_path(base_ctx, base_ctx->lp_ctx, "sam.ldb"));
} else {
krb5_set_error_message(context, EINVAL, "Failed to connect to Samba4 DB: %s (%s)", get_friendly_nt_error_msg(nt_status), nt_errstr(nt_status));
}
return EINVAL;
}
#if (HDB_INTERFACE_VERSION != 8 && HDB_INTERFACE_VERSION != 7)
#error "Unsupported Heimdal HDB version"
#endif
#if HDB_INTERFACE_VERSION >= 8
static krb5_error_code hdb_samba4_init(krb5_context context, void **ctx)
{
*ctx = NULL;
return 0;
}
static void hdb_samba4_fini(void *ctx)
{
}
#endif
/* Only used in the hdb-backed keytab code
* for a keytab of 'samba4&<address>' or samba4, to find
* kpasswd's key in the main DB, and to
* copy all the keys into a file (libnet_keytab_export)
*
* The <address> is the string form of a pointer to a talloced struct hdb_samba_context
*/
struct hdb_method hdb_samba4_interface = {
HDB_INTERFACE_VERSION,
#if HDB_INTERFACE_VERSION >= 8
.init = hdb_samba4_init,
.fini = hdb_samba4_fini,
#endif
.prefix = "samba4",
.create = hdb_samba4_create
};