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/*
Unix SMB/CIFS implementation.
implement the DRSUpdateRefs call
Copyright (C) Anatoliy Atanasov 2009
Copyright (C) Andrew Tridgell 2009
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 "librpc/gen_ndr/ndr_drsuapi.h"
#include "rpc_server/dcerpc_server.h"
#include "rpc_server/common/common.h"
#include "dsdb/samdb/samdb.h"
#include "lib/ldb/include/ldb_errors.h"
#include "param/param.h"
#include "librpc/gen_ndr/ndr_drsblobs.h"
#include "auth/auth.h"
#include "rpc_server/drsuapi/dcesrv_drsuapi.h"
/*
drsuapi_DsGetNCChanges
*/
static WERROR get_nc_changes_build_object(struct drsuapi_DsReplicaObjectListItemEx *obj,
struct ldb_message *msg,
struct ldb_context *sam_ctx,
struct ldb_dn *ncRoot_dn,
struct dsdb_schema *schema)
{
const struct ldb_val *md_value;
int i;
struct ldb_dn *obj_dn;
if (ldb_dn_compare(ncRoot_dn, msg->dn) == 0) {
obj->is_nc_prefix = true;
obj->parent_object_guid = NULL;
} else {
obj->is_nc_prefix = false;
obj->parent_object_guid = talloc(obj, struct GUID);
*obj->parent_object_guid = samdb_result_guid(msg, "parentGUID");
}
obj->next_object = NULL;
obj->meta_data_ctr = talloc(obj, struct drsuapi_DsReplicaMetaDataCtr);
md_value = ldb_msg_find_ldb_val(msg, "replPropertyMetaData");
if (md_value) {
struct replPropertyMetaDataBlob md;
enum ndr_err_code ndr_err;
ndr_err = ndr_pull_struct_blob(md_value, obj,
lp_iconv_convenience(ldb_get_opaque(sam_ctx, "loadparm")), &md,
(ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return WERR_DS_DRA_INTERNAL_ERROR;
}
if (md.version != 1) {
return WERR_DS_DRA_INTERNAL_ERROR;
}
obj->meta_data_ctr->count = md.ctr.ctr1.count;
obj->meta_data_ctr->meta_data = talloc_array(obj, struct drsuapi_DsReplicaMetaData, md.ctr.ctr1.count);
for (i=0; i<md.ctr.ctr1.count; i++) {
obj->meta_data_ctr->meta_data[i].originating_change_time = md.ctr.ctr1.array[i].originating_change_time;
obj->meta_data_ctr->meta_data[i].version = md.ctr.ctr1.array[i].version;
obj->meta_data_ctr->meta_data[i].originating_invocation_id = md.ctr.ctr1.array[i].originating_invocation_id;
obj->meta_data_ctr->meta_data[i].originating_usn = md.ctr.ctr1.array[i].originating_usn;
}
} else {
obj->meta_data_ctr->meta_data = talloc(obj, struct drsuapi_DsReplicaMetaData);
obj->meta_data_ctr->count = 0;
}
obj->object.identifier = talloc(obj, struct drsuapi_DsReplicaObjectIdentifier);
obj_dn = ldb_msg_find_attr_as_dn(sam_ctx, obj, msg, "distinguishedName");
obj->object.identifier->dn = ldb_dn_get_linearized(obj_dn);
obj->object.identifier->guid = GUID_zero();
ZERO_STRUCT(obj->object.identifier->sid);
obj->object.attribute_ctr.num_attributes = msg->num_elements;
/* Exclude non-replicate attributes from the responce.*/
for (i=0; i<msg->num_elements; i++) {
const struct dsdb_attribute *sa;
sa = dsdb_attribute_by_lDAPDisplayName(schema, msg->elements[i].name);
if (sa && sa->systemFlags & SYSTEM_FLAG_CR_NTDS_NC) {
ldb_msg_remove_attr(msg, msg->elements[i].name);
obj->object.attribute_ctr.num_attributes--;
}
}
obj->object.attribute_ctr.attributes = talloc_array(obj, struct drsuapi_DsReplicaAttribute,
obj->object.attribute_ctr.num_attributes);
for (i=0; i<obj->object.attribute_ctr.num_attributes; i++) {
dsdb_attribute_ldb_to_drsuapi(sam_ctx, schema,&msg->elements[i], obj,
&obj->object.attribute_ctr.attributes[i]);
}
return WERR_OK;
}
/*
drsuapi_DsGetNCChanges
*/
WERROR dcesrv_drsuapi_DsGetNCChanges(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
struct drsuapi_DsGetNCChanges *r)
{
struct ldb_result *site_res;
struct drsuapi_DsReplicaObjectIdentifier *ncRoot;
struct ldb_context *sam_ctx;
struct ldb_dn *ncRoot_dn;
int ret;
int i;
struct dsdb_schema *schema;
struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
time_t t = time(NULL);
NTTIME now;
struct drsuapi_DsReplicaObjectListItemEx *currentObject;
/*
* connect to the samdb
*/
sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx, dce_call->conn->auth_state.session_info);
if (!sam_ctx) {
return WERR_FOOBAR;
}
/* Check request revision. */
if (r->in.level != 8) {
return WERR_REVISION_MISMATCH;
}
/* Perform access checks. */
if (r->in.req->req8.naming_context == NULL) {
return WERR_DS_DRA_INVALID_PARAMETER;
}
ncRoot = r->in.req->req8.naming_context;
if (ncRoot == NULL) {
return WERR_DS_DRA_BAD_NC;
}
DEBUG(4,("DsGetNSChanges with uSHChanged >= %llu\n",
(unsigned long long)r->in.req->req8.highwatermark.highest_usn));
/* Construct response. */
ncRoot_dn = ldb_dn_new(mem_ctx, sam_ctx, ncRoot->dn);
ret = drsuapi_search_with_extended_dn(sam_ctx, mem_ctx, &site_res,
ncRoot_dn, LDB_SCOPE_SUBTREE, NULL,
"(&(uSNChanged>=%llu)(objectClass=*))",
(unsigned long long)r->in.req->req8.highwatermark.highest_usn);
if (ret != LDB_SUCCESS) {
return WERR_DS_DRA_INTERNAL_ERROR;
}
*r->out.level_out = 6;
r->out.ctr->ctr6.naming_context = talloc(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
*r->out.ctr->ctr6.naming_context = *ncRoot;
/* TODO: linked attributes*/
r->out.ctr->ctr6.linked_attributes_count = 0;
r->out.ctr->ctr6.linked_attributes = NULL;
r->out.ctr->ctr6.object_count = 0;
r->out.ctr->ctr6.more_data = false;
r->out.ctr->ctr6.uptodateness_vector = NULL;
/* Prefix mapping */
schema = dsdb_get_schema(sam_ctx);
if (!schema) {
DEBUG(0,("No schema in sam_ctx\n"));
return WERR_DS_DRA_INTERNAL_ERROR;
}
dsdb_get_oid_mappings_drsuapi(schema, true, mem_ctx, &ctr);
r->out.ctr->ctr6.mapping_ctr = *ctr;
r->out.ctr->ctr6.source_dsa_guid = *(samdb_ntds_objectGUID(sam_ctx));
r->out.ctr->ctr6.source_dsa_invocation_id = *(samdb_ntds_invocation_id(sam_ctx));
r->out.ctr->ctr6.old_highwatermark = r->in.req->req8.highwatermark;
r->out.ctr->ctr6.new_highwatermark = r->in.req->req8.highwatermark;
r->out.ctr->ctr6.first_object = talloc(mem_ctx, struct drsuapi_DsReplicaObjectListItemEx);
currentObject = r->out.ctr->ctr6.first_object;
for(i=0; i<site_res->count; i++) {
int uSN;
WERROR werr;
uSN = ldb_msg_find_attr_as_int(site_res->msgs[i], "uSNChanged", -1);
r->out.ctr->ctr6.object_count++;
if (uSN > r->out.ctr->ctr6.new_highwatermark.highest_usn) {
r->out.ctr->ctr6.new_highwatermark.highest_usn = uSN;
}
werr = get_nc_changes_build_object(currentObject, site_res->msgs[i], sam_ctx, ncRoot_dn, schema);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
if (i == (site_res->count-1)) {
break;
}
currentObject->next_object = talloc(mem_ctx, struct drsuapi_DsReplicaObjectListItemEx);
currentObject = currentObject->next_object;
}
r->out.ctr->ctr6.uptodateness_vector = talloc(mem_ctx, struct drsuapi_DsReplicaCursor2CtrEx);
r->out.ctr->ctr6.uptodateness_vector->version = 2;
r->out.ctr->ctr6.uptodateness_vector->count = 1;
r->out.ctr->ctr6.uptodateness_vector->reserved1 = 0;
r->out.ctr->ctr6.uptodateness_vector->reserved2 = 0;
r->out.ctr->ctr6.uptodateness_vector->cursors = talloc(mem_ctx, struct drsuapi_DsReplicaCursor2);
r->out.ctr->ctr6.uptodateness_vector->cursors[0].source_dsa_invocation_id = *(samdb_ntds_invocation_id(sam_ctx));
r->out.ctr->ctr6.uptodateness_vector->cursors[0].highest_usn = r->out.ctr->ctr6.new_highwatermark.highest_usn;
unix_to_nt_time(&now, t);
r->out.ctr->ctr6.uptodateness_vector->cursors[0].last_sync_success = now;
return WERR_OK;
}
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