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/*
Unix SMB/CIFS Implementation.
DSDB replication service - repl secret handling
Copyright (C) Andrew Tridgell 2010
Copyright (C) Andrew Bartlett 2010
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 "ldb_module.h"
#include "dsdb/samdb/samdb.h"
#include "samba/service.h"
#include "dsdb/repl/drepl_service.h"
#include "param/param.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_DRS_REPL
struct repl_secret_state {
const char *user_dn;
};
/*
called when a repl secret has completed
*/
static void drepl_repl_secret_callback(struct dreplsrv_service *service,
WERROR werr,
enum drsuapi_DsExtendedError ext_err,
void *cb_data)
{
struct repl_secret_state *state = talloc_get_type_abort(cb_data, struct repl_secret_state);
if (!W_ERROR_IS_OK(werr)) {
if (W_ERROR_EQUAL(werr, WERR_DS_DRA_SECRETS_DENIED)) {
DEBUG(3,(__location__ ": repl secret disallowed for user "
"%s - not in allowed replication group\n",
state->user_dn));
} else {
DEBUG(3,(__location__ ": repl secret failed for user %s - %s: extended_ret[0x%X]\n",
state->user_dn, win_errstr(werr), ext_err));
}
} else {
DEBUG(3,(__location__ ": repl secret completed OK for '%s'\n", state->user_dn));
}
talloc_free(state);
}
/**
* Called when the auth code wants us to try and replicate
* a users secrets
*/
void drepl_repl_secret(struct dreplsrv_service *service,
const char *user_dn)
{
WERROR werr;
struct ldb_dn *nc_dn, *nc_root, *source_dsa_dn;
struct dreplsrv_partition *p;
struct GUID *source_dsa_guid;
struct repl_secret_state *state;
int ret;
state = talloc_zero(service, struct repl_secret_state);
if (state == NULL) {
/* nothing to do, no return value */
return;
}
/* keep a copy for logging in the callback */
state->user_dn = talloc_strdup(state, user_dn);
nc_dn = ldb_dn_new(state, service->samdb, user_dn);
if (!ldb_dn_validate(nc_dn)) {
DEBUG(0,(__location__ ": Failed to parse user_dn '%s'\n", user_dn));
talloc_free(state);
return;
}
/* work out which partition this is in */
ret = dsdb_find_nc_root(service->samdb, state, nc_dn, &nc_root);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to find nc_root for user_dn '%s'\n", user_dn));
talloc_free(state);
return;
}
/* find the partition in our list */
for (p=service->partitions; p; p=p->next) {
if (ldb_dn_compare(p->dn, nc_root) == 0) {
break;
}
}
if (p == NULL) {
DEBUG(0,(__location__ ": Failed to find partition for nc_root '%s'\n", ldb_dn_get_linearized(nc_root)));
talloc_free(state);
return;
}
if (p->sources == NULL) {
DEBUG(0,(__location__ ": No sources for nc_root '%s' for user_dn '%s'\n",
ldb_dn_get_linearized(nc_root), user_dn));
talloc_free(state);
return;
}
/* use the first source, for no particularly good reason */
source_dsa_guid = &p->sources->repsFrom1->source_dsa_obj_guid;
source_dsa_dn = ldb_dn_new(state, service->samdb,
talloc_asprintf(state, "<GUID=%s>",
GUID_string(state, source_dsa_guid)));
if (!ldb_dn_validate(source_dsa_dn)) {
DEBUG(0,(__location__ ": Invalid source DSA GUID '%s' for user_dn '%s'\n",
GUID_string(state, source_dsa_guid), user_dn));
talloc_free(state);
return;
}
werr = drepl_request_extended_op(service,
nc_dn,
source_dsa_dn,
DRSUAPI_EXOP_REPL_SECRET,
0,
p->sources->repsFrom1->highwatermark.highest_usn,
drepl_repl_secret_callback, state);
if (!W_ERROR_IS_OK(werr)) {
DEBUG(2,(__location__ ": Failed to setup secret replication for user_dn '%s'\n", user_dn));
talloc_free(state);
return;
}
DEBUG(3,(__location__ ": started secret replication for %s\n", user_dn));
}
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