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/*
Unix SMB/CIFS mplementation.
Helper functions for applying replicated objects
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
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 "dsdb/samdb/samdb.h"
#include "lib/ldb/include/ldb_errors.h"
#include "../lib/util/dlinklist.h"
#include "librpc/gen_ndr/ndr_misc.h"
#include "librpc/gen_ndr/ndr_drsuapi.h"
#include "librpc/gen_ndr/ndr_drsblobs.h"
#include "../lib/crypto/crypto.h"
#include "../libcli/drsuapi/drsuapi.h"
#include "libcli/auth/libcli_auth.h"
#include "param/param.h"
static WERROR dsdb_convert_object(struct ldb_context *ldb,
const struct dsdb_schema *schema,
struct dsdb_extended_replicated_objects *ctr,
const struct drsuapi_DsReplicaObjectListItemEx *in,
const DATA_BLOB *gensec_skey,
TALLOC_CTX *mem_ctx,
struct dsdb_extended_replicated_object *out)
{
NTSTATUS nt_status;
enum ndr_err_code ndr_err;
WERROR status;
uint32_t i;
struct ldb_message *msg;
struct replPropertyMetaDataBlob *md;
struct ldb_val guid_value;
NTTIME whenChanged = 0;
time_t whenChanged_t;
const char *whenChanged_s;
const char *rdn_name = NULL;
const struct ldb_val *rdn_value = NULL;
const struct dsdb_attribute *rdn_attr = NULL;
uint32_t rdn_attid;
struct drsuapi_DsReplicaAttribute *name_a = NULL;
struct drsuapi_DsReplicaMetaData *name_d = NULL;
struct replPropertyMetaData1 *rdn_m = NULL;
struct dom_sid *sid = NULL;
uint32_t rid = 0;
int ret;
if (!in->object.identifier) {
return WERR_FOOBAR;
}
if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
return WERR_FOOBAR;
}
if (in->object.attribute_ctr.num_attributes != 0 && !in->meta_data_ctr) {
return WERR_FOOBAR;
}
if (in->object.attribute_ctr.num_attributes != in->meta_data_ctr->count) {
return WERR_FOOBAR;
}
sid = &in->object.identifier->sid;
if (sid->num_auths > 0) {
rid = sid->sub_auths[sid->num_auths - 1];
}
msg = ldb_msg_new(mem_ctx);
W_ERROR_HAVE_NO_MEMORY(msg);
msg->dn = ldb_dn_new(msg, ldb, in->object.identifier->dn);
W_ERROR_HAVE_NO_MEMORY(msg->dn);
rdn_name = ldb_dn_get_rdn_name(msg->dn);
rdn_attr = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
if (!rdn_attr) {
return WERR_FOOBAR;
}
rdn_attid = rdn_attr->attributeID_id;
rdn_value = ldb_dn_get_rdn_val(msg->dn);
msg->num_elements = in->object.attribute_ctr.num_attributes;
msg->elements = talloc_array(msg, struct ldb_message_element,
msg->num_elements);
W_ERROR_HAVE_NO_MEMORY(msg->elements);
md = talloc(mem_ctx, struct replPropertyMetaDataBlob);
W_ERROR_HAVE_NO_MEMORY(md);
md->version = 1;
md->reserved = 0;
md->ctr.ctr1.count = in->meta_data_ctr->count;
md->ctr.ctr1.reserved = 0;
md->ctr.ctr1.array = talloc_array(mem_ctx,
struct replPropertyMetaData1,
md->ctr.ctr1.count + 1); /* +1 because of the RDN attribute */
W_ERROR_HAVE_NO_MEMORY(md->ctr.ctr1.array);
for (i=0; i < in->meta_data_ctr->count; i++) {
struct drsuapi_DsReplicaAttribute *a;
struct drsuapi_DsReplicaMetaData *d;
struct replPropertyMetaData1 *m;
struct ldb_message_element *e;
int j;
a = &in->object.attribute_ctr.attributes[i];
d = &in->meta_data_ctr->meta_data[i];
m = &md->ctr.ctr1.array[i];
e = &msg->elements[i];
for (j=0; j<a->value_ctr.num_values; j++) {
status = drsuapi_decrypt_attribute(a->value_ctr.values[j].blob, gensec_skey, rid, a);
W_ERROR_NOT_OK_RETURN(status);
}
status = dsdb_attribute_drsuapi_to_ldb(ldb, schema, a, msg->elements, e);
W_ERROR_NOT_OK_RETURN(status);
m->attid = a->attid;
m->version = d->version;
m->originating_change_time = d->originating_change_time;
m->originating_invocation_id = d->originating_invocation_id;
m->originating_usn = d->originating_usn;
m->local_usn = 0;
if (d->originating_change_time > whenChanged) {
whenChanged = d->originating_change_time;
}
if (a->attid == DRSUAPI_ATTRIBUTE_name) {
name_a = a;
name_d = d;
rdn_m = &md->ctr.ctr1.array[md->ctr.ctr1.count];
}
}
if (rdn_m) {
ret = ldb_msg_add_value(msg, rdn_attr->lDAPDisplayName, rdn_value, NULL);
if (ret != LDB_SUCCESS) {
return WERR_FOOBAR;
}
rdn_m->attid = rdn_attid;
rdn_m->version = name_d->version;
rdn_m->originating_change_time = name_d->originating_change_time;
rdn_m->originating_invocation_id = name_d->originating_invocation_id;
rdn_m->originating_usn = name_d->originating_usn;
rdn_m->local_usn = 0;
md->ctr.ctr1.count++;
}
whenChanged_t = nt_time_to_unix(whenChanged);
whenChanged_s = ldb_timestring(msg, whenChanged_t);
W_ERROR_HAVE_NO_MEMORY(whenChanged_s);
ndr_err = ndr_push_struct_blob(&guid_value, msg,
lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
&in->object.identifier->guid,
(ndr_push_flags_fn_t)ndr_push_GUID);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
nt_status = ndr_map_error2ntstatus(ndr_err);
return ntstatus_to_werror(nt_status);
}
out->msg = msg;
out->guid_value = guid_value;
out->when_changed = whenChanged_s;
out->meta_data = md;
return WERR_OK;
}
WERROR dsdb_extended_replicated_objects_commit(struct ldb_context *ldb,
const char *partition_dn,
const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr,
uint32_t object_count,
const struct drsuapi_DsReplicaObjectListItemEx *first_object,
uint32_t linked_attributes_count,
const struct drsuapi_DsReplicaLinkedAttribute *linked_attributes,
const struct repsFromTo1 *source_dsa,
const struct drsuapi_DsReplicaCursor2CtrEx *uptodateness_vector,
const DATA_BLOB *gensec_skey,
TALLOC_CTX *mem_ctx,
struct dsdb_extended_replicated_objects **_out)
{
WERROR status;
const struct dsdb_schema *schema;
struct dsdb_extended_replicated_objects *out;
struct ldb_result *ext_res;
const struct drsuapi_DsReplicaObjectListItemEx *cur;
uint32_t i;
int ret;
schema = dsdb_get_schema(ldb);
if (!schema) {
return WERR_DS_SCHEMA_NOT_LOADED;
}
status = dsdb_verify_oid_mappings_drsuapi(schema, mapping_ctr);
W_ERROR_NOT_OK_RETURN(status);
out = talloc_zero(mem_ctx, struct dsdb_extended_replicated_objects);
W_ERROR_HAVE_NO_MEMORY(out);
out->version = DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION;
out->partition_dn = ldb_dn_new(out, ldb, partition_dn);
W_ERROR_HAVE_NO_MEMORY(out->partition_dn);
out->source_dsa = source_dsa;
out->uptodateness_vector= uptodateness_vector;
out->num_objects = object_count;
out->objects = talloc_array(out,
struct dsdb_extended_replicated_object,
out->num_objects);
W_ERROR_HAVE_NO_MEMORY(out->objects);
for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
if (i == out->num_objects) {
return WERR_FOOBAR;
}
status = dsdb_convert_object(ldb, schema, out, cur, gensec_skey, out->objects, &out->objects[i]);
W_ERROR_NOT_OK_RETURN(status);
}
if (i != out->num_objects) {
return WERR_FOOBAR;
}
/* TODO: handle linked attributes */
/* wrap the extended operation in a transaction
See [MS-DRSR] 3.3.2 Transactions
*/
ret = ldb_transaction_start(ldb);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ " Failed to start transaction\n"));
talloc_free(out);
return WERR_FOOBAR;
}
ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, out, &ext_res);
if (ret != LDB_SUCCESS) {
DEBUG(0,("Failed to apply records: %s: %s\n",
ldb_errstring(ldb), ldb_strerror(ret)));
talloc_free(out);
ldb_transaction_cancel(ldb);
return WERR_FOOBAR;
}
talloc_free(ext_res);
ret = ldb_transaction_commit(ldb);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ " Failed to commit transaction\n"));
talloc_free(out);
return WERR_FOOBAR;
}
if (_out) {
*_out = out;
} else {
talloc_free(out);
}
return WERR_OK;
}
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