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authorAnatoliy Atanasov <anatoliy.atanasov@postpath.com>2009-09-02 17:39:28 +0300
committerAndrew Tridgell <tridge@samba.org>2009-09-03 19:10:49 +1000
commit38995d7cbb0c3143eb1fea0215863321349c7bbe (patch)
treed8b13ea342b02fb0e74189ee9126c79329b8b970
parent957a9285c22c5f4412154bd84a82d66fe759b0f5 (diff)
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First attempt to implement dcesrv_drsuapi_DsGetNCChanges
So far it returns the ctr6 responce without proper linked attributes support and metadata. A couple of improvements are the filter in the search uses '(uSNChanged>=N)', added extended dn search support, non-replicated attributes are excluded from the result.
-rw-r--r--source4/rpc_server/drsuapi/dcesrv_drsuapi.c205
1 files changed, 204 insertions, 1 deletions
diff --git a/source4/rpc_server/drsuapi/dcesrv_drsuapi.c b/source4/rpc_server/drsuapi/dcesrv_drsuapi.c
index 6af8ea50b5..3fef3eba70 100644
--- a/source4/rpc_server/drsuapi/dcesrv_drsuapi.c
+++ b/source4/rpc_server/drsuapi/dcesrv_drsuapi.c
@@ -236,6 +236,66 @@ static WERROR dcesrv_drsuapi_DsReplicaSync(struct dcesrv_call_state *dce_call, T
return WERR_OK;
}
+int drsuapi_search_with_extended_dn(struct ldb_context *ldb,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_result **_res,
+ struct ldb_dn *basedn,
+ enum ldb_scope scope,
+ const char * const *attrs,
+ const char *format, ...)
+{
+ va_list ap;
+ int ret;
+ struct ldb_request *req;
+ char *filter;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_result *res;
+
+ tmp_ctx = talloc_new(mem_ctx);
+
+ res = talloc_zero(tmp_ctx, struct ldb_result);
+ if (!res) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ va_start(ap, format);
+ filter = talloc_vasprintf(tmp_ctx, format, ap);
+ va_end(ap);
+
+ if (filter == NULL) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = ldb_build_search_req(&req, ldb, tmp_ctx,
+ basedn,
+ scope,
+ filter,
+ attrs,
+ NULL,
+ res,
+ ldb_search_default_callback,
+ NULL);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = ldb_request_add_control(req, LDB_CONTROL_EXTENDED_DN_OID, true, NULL);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ret = ldb_request(ldb, req);
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+ }
+
+ talloc_free(req);
+ *_res = res;
+ return ret;
+}
+
/*
drsuapi_DsGetNCChanges
@@ -243,7 +303,150 @@ static WERROR dcesrv_drsuapi_DsReplicaSync(struct dcesrv_call_state *dce_call, T
static WERROR dcesrv_drsuapi_DsGetNCChanges(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
struct drsuapi_DsGetNCChanges *r)
{
- DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
+ struct ldb_result *site_res;
+ struct drsuapi_DsReplicaObjectIdentifier *ncRoot;
+ struct drsuapi_bind_state *b_state;
+ struct ldb_dn *ncRoot_dn;
+ int ret;
+ int i;
+ int j;
+ int uSN;
+ struct dsdb_schema *schema;
+ struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
+ time_t t = time(NULL);
+ NTTIME now;
+ struct drsuapi_DsReplicaObjectListItemEx *currentObject;
+ struct dom_sid *zero_sid;
+ struct ldb_dn *obj_dn;
+
+ b_state = talloc_zero(mem_ctx, struct drsuapi_bind_state);
+ W_ERROR_HAVE_NO_MEMORY(b_state);
+ zero_sid = talloc_zero(mem_ctx, struct dom_sid);
+ /*
+ * connect to the samdb
+ */
+ b_state->sam_ctx = samdb_connect(b_state, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx, dce_call->conn->auth_state.session_info);
+ if (!b_state->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;
+ }
+
+ /* Construct response. */
+ ncRoot_dn = ldb_dn_new(mem_ctx, b_state->sam_ctx, ncRoot->dn);
+ ret = drsuapi_search_with_extended_dn(b_state->sam_ctx, mem_ctx, &site_res,
+ ncRoot_dn, LDB_SCOPE_SUBTREE, NULL,
+ "(&(uSNChanged>=%lld)(objectClass=*))", 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(b_state->sam_ctx);
+ if (!schema) {
+ DEBUG(0,("No schema in b_state->sam_ctx"));
+ }
+
+ 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(b_state->sam_ctx));
+ r->out.ctr->ctr6.source_dsa_invocation_id = *(samdb_ntds_invocation_id(b_state->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++) {
+ 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;
+ }
+
+ if (ldb_dn_compare(ncRoot_dn, site_res->msgs[i]->dn) == 0) {
+ currentObject->is_nc_prefix = true;
+ currentObject->parent_object_guid = NULL;
+ } else {
+ currentObject->is_nc_prefix = false;
+ currentObject->parent_object_guid = talloc(mem_ctx, struct GUID);
+ *currentObject->parent_object_guid = samdb_result_guid(site_res->msgs[i], "parentGUID");
+ }
+ currentObject->next_object = NULL;
+ /* TODO: MetaData vector*/
+ currentObject->meta_data_ctr = talloc(mem_ctx, struct drsuapi_DsReplicaMetaDataCtr);
+ currentObject->meta_data_ctr->meta_data = talloc(mem_ctx, struct drsuapi_DsReplicaMetaData);
+ currentObject->meta_data_ctr->count = 0;
+ currentObject->object.identifier = talloc(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
+ obj_dn = ldb_msg_find_attr_as_dn(b_state->sam_ctx, mem_ctx, site_res->msgs[i], "distinguishedName");
+ currentObject->object.identifier->dn = ldb_dn_get_linearized(obj_dn);
+ currentObject->object.identifier->guid = GUID_zero();
+ currentObject->object.identifier->sid = *zero_sid;
+
+ currentObject->object.attribute_ctr.num_attributes = site_res->msgs[i]->num_elements;
+ /* Exclude non-replicate attributes from the responce.*/
+ for (j=0; j<site_res->msgs[i]->num_elements; j++) {
+ const struct dsdb_attribute *sa;
+ sa = dsdb_attribute_by_lDAPDisplayName(schema, site_res->msgs[i]->elements[j].name);
+ if (sa && sa->systemFlags & 0x00000001) {
+ ldb_msg_remove_attr(site_res->msgs[i], site_res->msgs[i]->elements[j].name);
+ currentObject->object.attribute_ctr.num_attributes--;
+ }
+ }
+ currentObject->object.attribute_ctr.attributes = talloc_array(mem_ctx, struct drsuapi_DsReplicaAttribute,
+ currentObject->object.attribute_ctr.num_attributes);
+ for (j=0; j<currentObject->object.attribute_ctr.num_attributes; j++) {
+ dsdb_attribute_ldb_to_drsuapi(b_state->sam_ctx, schema,&site_res->msgs[i]->elements[j], mem_ctx,
+ &currentObject->object.attribute_ctr.attributes[j]);
+ }
+
+ 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(b_state->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;
}