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-rw-r--r--source4/dsdb/samdb/ldb_modules/partition.c193
1 files changed, 189 insertions, 4 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/partition.c b/source4/dsdb/samdb/ldb_modules/partition.c
index 6f41513200..f523119e21 100644
--- a/source4/dsdb/samdb/ldb_modules/partition.c
+++ b/source4/dsdb/samdb/ldb_modules/partition.c
@@ -44,6 +44,43 @@ struct partition_private_data {
struct partition **partitions;
};
+struct partition_async_context {
+ struct ldb_module *module;
+ struct ldb_request *orig_req;
+
+ struct ldb_request **search_req;
+ BOOL *finished_search;
+ int num_searches;
+};
+
+static struct ldb_async_handle *partition_init_handle(struct ldb_request *req, struct ldb_module *module)
+{
+ struct partition_async_context *ac;
+ struct ldb_async_handle *h;
+
+ h = talloc_zero(req, struct ldb_async_handle);
+ if (h == NULL) {
+ ldb_set_errstring(module->ldb, talloc_asprintf(module, "Out of Memory"));
+ return NULL;
+ }
+
+ h->module = module;
+
+ ac = talloc_zero(h, struct partition_async_context);
+ if (ac == NULL) {
+ ldb_set_errstring(module->ldb, talloc_asprintf(module, "Out of Memory"));
+ talloc_free(h);
+ return NULL;
+ }
+
+ h->private_data = (void *)ac;
+
+ ac->module = module;
+ ac->orig_req = req;
+
+ return h;
+}
+
struct ldb_module *make_module_for_next_request(TALLOC_CTX *mem_ctx,
struct ldb_context *ldb,
struct ldb_module *module)
@@ -81,17 +118,98 @@ struct ldb_module *find_backend(struct ldb_module *module, struct ldb_request *r
return module;
};
+static int partition_send_search(struct partition_async_context *ac, struct ldb_module *partition)
+{
+ int ret;
+ struct ldb_module *next = make_module_for_next_request(ac->module, ac->module->ldb, partition);
+
+ ac->search_req = talloc_realloc(ac, ac->search_req,
+ struct ldb_request *, ac->num_searches + 1);
+ if (!ac->search_req) {
+ ldb_set_errstring(ac->module->ldb, talloc_asprintf(ac->module->ldb, "Out of memory!"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac->search_req[ac->num_searches] = talloc(ac, struct ldb_request);
+ if (ac->search_req[ac->num_searches] == NULL) {
+ ldb_set_errstring(ac->module->ldb, talloc_asprintf(ac->module->ldb, "Out of memory!"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ *ac->search_req[ac->num_searches] = *ac->orig_req; /* copy the request */
+
+ /* Spray off search requests to all backends */
+ ret = ldb_next_request(next, ac->search_req[ac->num_searches]);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ac->num_searches++;
+ return LDB_SUCCESS;
+}
+
/* search */
static int partition_search(struct ldb_module *module, struct ldb_request *req)
{
/* Find backend */
- struct ldb_module *backend = find_backend(module, req, req->op.search.base);
-
+ struct partition_private_data *data = talloc_get_type(module->private_data,
+ struct partition_private_data);
/* issue request */
/* (later) consider if we should be searching multiple
* partitions (for 'invisible' partition behaviour */
- return ldb_next_request(backend, req);
+ if (ldb_get_opaque(module->ldb, "global_catalog")) {
+ int ret, i;
+ struct ldb_async_handle *h;
+ struct partition_async_context *ac;
+
+ h = partition_init_handle(req, module);
+ if (!h) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ /* return our own handle to deal with this call */
+ req->async.handle = h;
+
+ ac = talloc_get_type(h->private_data, struct partition_async_context);
+
+ ac->orig_req = req;
+ ac->num_searches = 0;
+
+ for (i=0; data && data->partitions && data->partitions[i]; i++) {
+ /* Find all partitions under the search base */
+ if (ldb_dn_compare_base(module->ldb,
+ req->op.search.base,
+ data->partitions[i]->dn) == 0) {
+ ret = partition_send_search(ac, data->partitions[i]->module);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+ }
+
+ /* Perhaps we didn't match any partitions. Try the main partition, then all partitions */
+ if (ac->num_searches == 0) {
+ ret = partition_send_search(ac, module->next);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ for (i=0; data && data->partitions && data->partitions[i]; i++) {
+ ret = partition_send_search(ac, data->partitions[i]->module);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+ }
+
+ ac->finished_search = talloc_zero_array(ac, BOOL, ac->num_searches);
+ if (!ac->finished_search) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ return LDB_SUCCESS;
+ } else {
+ struct ldb_module *backend = find_backend(module, req, req->op.search.base);
+
+ return ldb_next_request(backend, req);
+ }
}
/* add */
@@ -400,6 +518,72 @@ static int partition_init(struct ldb_module *module)
return ldb_next_init(module);
}
+static int partition_async_wait_none(struct ldb_async_handle *handle) {
+ struct partition_async_context *ac;
+ int ret;
+ int i;
+
+ if (!handle || !handle->private_data) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (handle->state == LDB_ASYNC_DONE) {
+ return handle->status;
+ }
+
+ handle->state = LDB_ASYNC_PENDING;
+ handle->status = LDB_SUCCESS;
+
+ ac = talloc_get_type(handle->private_data, struct partition_async_context);
+
+ for (i=0; i < ac->num_searches; i++) {
+ ret = ldb_async_wait(ac->search_req[i]->async.handle, LDB_WAIT_NONE);
+
+ if (ret != LDB_SUCCESS) {
+ handle->status = ret;
+ goto done;
+ }
+ if (ac->search_req[i]->async.handle->status != LDB_SUCCESS) {
+ handle->status = ac->search_req[i]->async.handle->status;
+ goto done;
+ }
+
+ if (ac->search_req[i]->async.handle->state != LDB_ASYNC_DONE) {
+ return LDB_SUCCESS;
+ }
+ }
+
+ ret = LDB_SUCCESS;
+
+done:
+ handle->state = LDB_ASYNC_DONE;
+ return ret;
+}
+
+
+static int partition_async_wait_all(struct ldb_async_handle *handle) {
+
+ int ret;
+
+ while (handle->state != LDB_ASYNC_DONE) {
+ ret = partition_async_wait_none(handle);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+
+ return handle->status;
+}
+
+static int partition_async_wait(struct ldb_async_handle *handle, enum ldb_async_wait_type type)
+{
+ if (type == LDB_WAIT_ALL) {
+ return partition_async_wait_all(handle);
+ } else {
+ return partition_async_wait_none(handle);
+ }
+}
+
static const struct ldb_module_ops partition_ops = {
.name = "partition",
.init_context = partition_init,
@@ -411,7 +595,8 @@ static const struct ldb_module_ops partition_ops = {
.start_transaction = partition_start_trans,
.end_transaction = partition_end_trans,
.del_transaction = partition_del_trans,
- .sequence_number = partition_sequence_number
+ .sequence_number = partition_sequence_number,
+ .async_wait = partition_async_wait
};
int ldb_partition_init(void)