return LDB_ERR_OTHER;
}
+/*
+ lock the database for read - use by ltdb_search and ltdb_sequence_number
+*/
+int ltdb_lock_read(struct ldb_module *module)
+{
+ struct ltdb_private *ltdb = (struct ltdb_private *)module->private_data;
+ if (ltdb->in_transaction == 0) {
+ return tdb_lockall_read(ltdb->tdb);
+ }
+ return 0;
+}
+
+/*
+ unlock the database after a ltdb_lock_read()
+*/
+int ltdb_unlock_read(struct ldb_module *module)
+{
+ struct ltdb_private *ltdb = (struct ltdb_private *)module->private_data;
+ if (ltdb->in_transaction == 0) {
+ return tdb_unlockall_read(ltdb->tdb);
+ }
+ return 0;
+}
+
/*
form a TDB_DATA for a record key
/*
return sequenceNumber from @BASEINFO
*/
-static int ltdb_sequence_number(struct ldb_module *module,
- struct ldb_request *req)
+static int ltdb_sequence_number(struct ltdb_context *ctx,
+ struct ldb_extended **ext)
{
+ struct ldb_module *module = ctx->module;
+ struct ldb_request *req = ctx->req;
TALLOC_CTX *tmp_ctx;
+ struct ldb_seqnum_request *seq;
+ struct ldb_seqnum_result *res;
struct ldb_message *msg = NULL;
struct ldb_dn *dn;
const char *date;
- int tret;
+ int ret;
+ seq = talloc_get_type(req->op.extended.data,
+ struct ldb_seqnum_request);
+ if (seq == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ req->handle->state = LDB_ASYNC_PENDING;
+
+ if (ltdb_lock_read(module) != 0) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ res = talloc_zero(req, struct ldb_seqnum_result);
+ if (res == NULL) {
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ goto done;
+ }
tmp_ctx = talloc_new(req);
if (tmp_ctx == NULL) {
- talloc_free(tmp_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ goto done;
}
dn = ldb_dn_new(tmp_ctx, module->ldb, LTDB_BASEINFO);
msg = talloc(tmp_ctx, struct ldb_message);
if (msg == NULL) {
- talloc_free(tmp_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ goto done;
}
- req->op.seq_num.flags = 0;
-
- tret = ltdb_search_dn1(module, dn, msg);
- if (tret != LDB_SUCCESS) {
- talloc_free(tmp_ctx);
- /* zero is as good as anything when we don't know */
- req->op.seq_num.seq_num = 0;
- return tret;
+ ret = ltdb_search_dn1(module, dn, msg);
+ if (ret != LDB_SUCCESS) {
+ goto done;
}
- switch (req->op.seq_num.type) {
+ switch (seq->type) {
case LDB_SEQ_HIGHEST_SEQ:
- req->op.seq_num.seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0);
+ res->seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0);
break;
case LDB_SEQ_NEXT:
- req->op.seq_num.seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0);
- req->op.seq_num.seq_num++;
+ res->seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0);
+ res->seq_num++;
break;
case LDB_SEQ_HIGHEST_TIMESTAMP:
date = ldb_msg_find_attr_as_string(msg, LTDB_MOD_TIMESTAMP, NULL);
if (date) {
- req->op.seq_num.seq_num = ldb_string_to_time(date);
+ res->seq_num = ldb_string_to_time(date);
} else {
- req->op.seq_num.seq_num = 0;
+ res->seq_num = 0;
/* zero is as good as anything when we don't know */
}
break;
}
- talloc_free(tmp_ctx);
+ *ext = talloc_zero(req, struct ldb_extended);
+ if (*ext == NULL) {
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ goto done;
+ }
+ (*ext)->oid = LDB_EXTENDED_SEQUENCE_NUMBER;
+ (*ext)->data = talloc_steal(*ext, res);
- return LDB_SUCCESS;
+ ret = LDB_SUCCESS;
+
+done:
+ talloc_free(tmp_ctx);
+ ltdb_unlock_read(module);
+ return ret;
}
void ltdb_request_done(struct ldb_request *req, int error)
ltdb_request_done(ctx->req, LDB_ERR_TIME_LIMIT_EXCEEDED);
}
+static void ltdb_request_extended_done(struct ldb_request *req,
+ struct ldb_extended *ext,
+ int error)
+{
+ struct ldb_reply *ares;
+
+ /* if we already returned an error just return */
+ if (req->handle->status != LDB_SUCCESS) {
+ return;
+ }
+
+ ares = talloc_zero(req, struct ldb_reply);
+ if (!ares) {
+ ldb_oom(req->handle->ldb);
+ req->callback(req, NULL);
+ return;
+ }
+ ares->type = LDB_REPLY_DONE;
+ ares->response = ext;
+ ares->error = error;
+
+ req->callback(req, ares);
+}
+
+static void ltdb_handle_extended(struct ltdb_context *ctx)
+{
+ struct ldb_extended *ext = NULL;
+ int ret;
+
+ if (strcmp(ctx->req->op.extended.oid,
+ LDB_EXTENDED_SEQUENCE_NUMBER) == 0) {
+ /* get sequence number */
+ ret = ltdb_sequence_number(ctx, &ext);
+ } else {
+ /* not recognized */
+ ret = LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION;
+ }
+
+ ltdb_request_extended_done(ctx->req, ext, ret);
+}
+
static void ltdb_callback(struct event_context *ev,
struct timed_event *te,
struct timeval t,
case LDB_RENAME:
ret = ltdb_rename(ctx);
break;
+ case LDB_EXTENDED:
+ ltdb_handle_extended(ctx);
+ return;
default:
/* no other op supported */
ret = LDB_ERR_UNWILLING_TO_PERFORM;
.modify = ltdb_handle_request,
.del = ltdb_handle_request,
.rename = ltdb_handle_request,
-/* .request = ltdb_handle_request, */
+ .extended = ltdb_handle_request,
.start_transaction = ltdb_start_trans,
.end_transaction = ltdb_end_trans,
.del_transaction = ltdb_del_trans,
- .sequence_number = ltdb_sequence_number
};
/*
git.samba.org / jra / samba / .git / blobdiff