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authorSimo Sorce <idra@samba.org>2006-03-13 21:05:55 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:57:13 -0500
commitb1bf44a4e1190fe41440e731adaab9db14881508 (patch)
tree00c15d4ce28d2f7d509d5c55af03c212e0eff42f /source4/lib/ldb/modules/asq.c
parentb67cf4ce262c834015ffda7bbbc1c62711f097aa (diff)
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r14344: More helpful messages on error for command line specified controls
fixes in paged_results asq -> async (This used to be commit fbd347544001da9e46246eb0b4a8d165ccab15c9)
Diffstat (limited to 'source4/lib/ldb/modules/asq.c')
-rw-r--r--source4/lib/ldb/modules/asq.c388
1 files changed, 377 insertions, 11 deletions
diff --git a/source4/lib/ldb/modules/asq.c b/source4/lib/ldb/modules/asq.c
index 33ba9bed04..1449ece975 100644
--- a/source4/lib/ldb/modules/asq.c
+++ b/source4/lib/ldb/modules/asq.c
@@ -77,9 +77,8 @@ static int build_response(struct ldb_result *res, int result)
}
/* search */
-static int asq_search(struct ldb_module *module, struct ldb_request *req)
+static int asq_search(struct ldb_module *module, struct ldb_control *control, struct ldb_request *req)
{
- struct ldb_control *control;
struct ldb_asq_control *asq_ctrl;
struct ldb_request *base_req;
struct ldb_message_element *el;
@@ -87,13 +86,6 @@ static int asq_search(struct ldb_module *module, struct ldb_request *req)
char **base_attrs;
int i, c, ret;
- /* check if there's a paged request control */
- control = get_control_from_list(req->controls, LDB_CONTROL_ASQ_OID);
- if (control == NULL) {
- /* not found go on */
- return ldb_next_request(module, req);
- }
-
/* pre-allocate a clean result structure */
req->op.search.res = res = talloc_zero(req, struct ldb_result);
if (res == NULL)
@@ -197,15 +189,388 @@ static int asq_search(struct ldb_module *module, struct ldb_request *req)
return build_response(res, ASQ_CTRL_SUCCESS);
}
+struct asq_async_context {
+ struct ldb_module *module;
+ void *up_context;
+ int (*up_callback)(struct ldb_context *, void *, struct ldb_async_result *);
+ int timeout;
+
+ const char * const *req_attrs;
+ char *req_attribute;
+ int asq_ret;
+
+ struct ldb_request *base_req;
+ struct ldb_async_result *base_res;
+
+ struct ldb_request **reqs;
+ int num_reqs;
+ int cur_req;
+
+ struct ldb_control **controls;
+};
+
+static struct ldb_async_handle *init_handle(void *mem_ctx, struct ldb_module *module,
+ void *context,
+ int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
+ int timeout)
+{
+ struct asq_async_context *ac;
+ struct ldb_async_handle *h;
+
+ h = talloc_zero(mem_ctx, 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 asq_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;
+
+ h->state = LDB_ASYNC_INIT;
+ h->status = LDB_SUCCESS;
+
+ ac->module = module;
+ ac->up_context = context;
+ ac->up_callback = callback;
+ ac->timeout = timeout;
+
+ return h;
+}
+
+static int asq_terminate(struct ldb_async_handle *handle)
+{
+ struct asq_async_context *ac;
+ struct ldb_async_result *ares;
+ struct ldb_asq_control *asq;
+ int i;
+
+ ac = talloc_get_type(handle->private_data, struct asq_async_context);
+
+ handle->status = LDB_SUCCESS;
+ handle->state = LDB_ASYNC_DONE;
+
+ ares = talloc_zero(ac, struct ldb_async_result);
+ if (ares == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+
+ ares->type = LDB_REPLY_DONE;
+
+ if (ac->controls) {
+ for (i = 0; ac->controls[i]; i++);
+ ares->controls = talloc_steal(ares, ac->controls);
+ } else {
+ i = 0;
+ }
+
+ ares->controls = talloc_realloc(ares, ares->controls, struct ldb_control *, i + 2);
+
+ if (ares->controls == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+
+ ares->controls[i] = talloc(ares->controls, struct ldb_control);
+ if (ares->controls[i] == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+
+ ares->controls[i]->oid = LDB_CONTROL_ASQ_OID;
+ ares->controls[i]->critical = 0;
+
+ asq = talloc_zero(ares->controls[i], struct ldb_asq_control);
+ if (asq == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+
+ asq->result = ac->asq_ret;
+
+ ares->controls[i]->data = asq;
+
+ ares->controls[i + 1] = NULL;
+
+ ac->up_callback(ac->module->ldb, ac->up_context, ares);
+
+ return LDB_SUCCESS;
+}
+
+static int asq_base_callback(struct ldb_context *ldb, void *context, struct ldb_async_result *ares)
+{
+ struct asq_async_context *ac;
+
+ if (!context || !ares) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "NULL Context or Result in callback"));
+ goto error;
+ }
+
+ ac = talloc_get_type(context, struct asq_async_context);
+
+ /* we are interested only in the single reply (base search) we receive here */
+ if (ares->type == LDB_REPLY_ENTRY) {
+ ac->base_res = talloc_steal(ac, ares);
+ } else {
+ talloc_free(ares);
+ }
+
+ return LDB_SUCCESS;
+error:
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
+
+static int asq_reqs_callback(struct ldb_context *ldb, void *context, struct ldb_async_result *ares)
+{
+ struct asq_async_context *ac;
+
+ if (!context || !ares) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "NULL Context or Result in callback"));
+ goto error;
+ }
+
+ ac = talloc_get_type(context, struct asq_async_context);
+
+ /* we are interested only in the single reply (base search) we receive here */
+ if (ares->type == LDB_REPLY_ENTRY) {
+
+ /* pass the message up to the original callback as we
+ * do not have to elaborate on it any further */
+ return ac->up_callback(ac->module->ldb, ac->up_context, ares);
+
+ } else { /* ignore any REFERRAL or DONE reply */
+ talloc_free(ares);
+ }
+
+ return LDB_SUCCESS;
+error:
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
+
+static int asq_search_async(struct ldb_module *module, struct ldb_control *control, struct ldb_request *req)
+{
+ struct ldb_asq_control *asq_ctrl;
+ struct asq_async_context *ac;
+ struct ldb_async_handle *h;
+ char **base_attrs;
+ int ret;
+
+ req->async.handle = NULL;
+
+ if (!req->async.callback || !req->async.context) {
+ ldb_set_errstring(module->ldb, talloc_asprintf(module,
+ "Async interface called with NULL callback function or NULL context"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ asq_ctrl = talloc_get_type(control->data, struct ldb_asq_control);
+ if (!asq_ctrl) {
+ return LDB_ERR_PROTOCOL_ERROR;
+ }
+
+ h = init_handle(req, module, req->async.context, req->async.callback, req->async.timeout);
+ if (!h) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac = talloc_get_type(h->private_data, struct asq_async_context);
+
+ req->async.handle = h;
+
+ /* check the search is well formed */
+ if (req->op.search.scope != LDB_SCOPE_BASE) {
+ ac->asq_ret = ASQ_CTRL_UNWILLING_TO_PERFORM;
+ return asq_terminate(h);
+ }
+
+ ac->req_attrs = req->op.search.attrs;
+ ac->req_attribute = talloc_strdup(ac, asq_ctrl->source_attribute);
+ if (ac->req_attribute == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+
+ /* get the object to retrieve the DNs to search */
+ ac->base_req = talloc_zero(req, struct ldb_request);
+ if (ac->base_req == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+ ac->base_req->operation = req->operation;
+ ac->base_req->op.search.base = req->op.search.base;
+ ac->base_req->op.search.scope = LDB_SCOPE_BASE;
+ ac->base_req->op.search.tree = req->op.search.tree;
+ base_attrs = talloc_array(ac->base_req, char *, 2);
+ if (base_attrs == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+ base_attrs[0] = talloc_strdup(base_attrs, asq_ctrl->source_attribute);
+ if (base_attrs[0] == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+ base_attrs[1] = NULL;
+ ac->base_req->op.search.attrs = (const char * const *)base_attrs;
+ ac->base_req->creds = req->creds;
+
+ ac->base_req->async.context = ac;
+ ac->base_req->async.callback = asq_base_callback;
+ ac->base_req->async.timeout = req->async.timeout;
+
+ ret = ldb_request(module->ldb, ac->base_req);
+
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ return LDB_SUCCESS;
+}
+
+static int asq_async_requests(struct ldb_async_handle *handle) {
+ struct asq_async_context *ac;
+ struct ldb_message_element *el;
+ int i;
+
+ ac = talloc_get_type(handle->private_data, struct asq_async_context);
+
+ /* look up the DNs */
+ el = ldb_msg_find_element(ac->base_res->message, ac->req_attribute);
+ /* no values found */
+ if (el == NULL) {
+ ac->asq_ret = ASQ_CTRL_SUCCESS;
+ return asq_terminate(handle);
+ }
+
+ /* build up the requests call chain */
+ ac->num_reqs = el->num_values;
+ ac->cur_req = 0;
+ ac->reqs = talloc_array(ac, struct ldb_request *, ac->num_reqs);
+ if (ac->reqs == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ for (i = 0; i < el->num_values; i++) {
+
+ ac->reqs[i] = talloc_zero(ac->reqs, struct ldb_request);
+ if (ac->reqs[i] == NULL)
+ return LDB_ERR_OPERATIONS_ERROR;
+ ac->reqs[i]->operation = LDB_ASYNC_SEARCH;
+ ac->reqs[i]->op.search.base = ldb_dn_explode(ac->reqs[i], (const char *)el->values[i].data);
+ if (ac->reqs[i]->op.search.base == NULL) {
+ ac->asq_ret = ASQ_CTRL_INVALID_ATTRIBUTE_SYNTAX;
+ return asq_terminate(handle);
+ }
+ ac->reqs[i]->op.search.scope = LDB_SCOPE_BASE;
+ ac->reqs[i]->op.search.tree = ac->base_req->op.search.tree;
+ ac->reqs[i]->op.search.attrs = ac->req_attrs;
+ ac->reqs[i]->creds = ac->base_req->creds;
+
+ ac->reqs[i]->async.context = ac;
+ ac->reqs[i]->async.callback = asq_reqs_callback;
+ ac->reqs[i]->async.timeout = ac->base_req->async.timeout;
+ }
+
+ return LDB_SUCCESS;
+}
+
+static int asq_async_wait(struct ldb_async_handle *handle, enum ldb_async_wait_type type)
+{
+ struct asq_async_context *ac;
+ int ret;
+
+ if (!handle || !handle->private_data) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (handle->state == LDB_ASYNC_DONE) {
+ return handle->status;
+ }
+
+ handle->state = LDB_ASYNC_PENDING;
+
+ ac = talloc_get_type(handle->private_data, struct asq_async_context);
+
+ if (type == LDB_WAIT_ALL) {
+ while (ac->base_req->async.handle->state != LDB_ASYNC_DONE) {
+ ret = ldb_async_wait(ac->base_req->async.handle, type);
+ if (ret != LDB_SUCCESS) goto error;
+ }
+
+ ret = asq_async_requests(handle);
+ if (ret != LDB_SUCCESS) goto error;
+
+ for (; ac->cur_req < ac->num_reqs; ac->cur_req++) {
+ ret = ldb_request(ac->module->ldb, ac->reqs[ac->cur_req]);
+ if (ret != LDB_SUCCESS) goto error;
+
+ while (ac->reqs[ac->cur_req]->async.handle->state != LDB_ASYNC_DONE) {
+ ret = ldb_async_wait(ac->reqs[ac->cur_req]->async.handle, type);
+ if (ret != LDB_SUCCESS) goto error;
+ }
+ }
+
+ return asq_terminate(handle);
+ }
+
+ /* type == LDB_WAIT_NONE */
+
+ if (ac->base_req->async.handle->state != LDB_ASYNC_DONE) {
+ ret = ldb_async_wait(ac->base_req->async.handle, type);
+ if (ret != LDB_SUCCESS) goto error;
+
+ if (ac->base_req->async.handle->state != LDB_ASYNC_DONE) {
+ return ret;
+ }
+ }
+
+ if (ac->reqs == NULL) {
+ /* need to build up the reqs array before calling out */
+ ret = asq_async_requests(handle);
+ if (ret != LDB_SUCCESS) goto error;
+ }
+
+ if (ac->cur_req < ac->num_reqs) {
+
+ if (ac->reqs[ac->cur_req]->async.handle == NULL) {
+ ret = ldb_request(ac->module->ldb, ac->reqs[ac->cur_req]);
+ if (ret != LDB_SUCCESS) goto error;
+ }
+
+ if (ac->reqs[ac->cur_req]->async.handle->state != LDB_ASYNC_DONE) {
+ ret = ldb_async_wait(ac->reqs[ac->cur_req]->async.handle, type);
+ if (ret != LDB_SUCCESS) goto error;
+ }
+
+ if (ac->reqs[ac->cur_req]->async.handle->state == LDB_ASYNC_DONE) {
+ ac->cur_req++;
+ }
+
+ return handle->status;
+ }
+
+ return asq_terminate(handle);
+
+error:
+ handle->state = LDB_ASYNC_DONE;
+ handle->status = ret;
+ return ret;
+}
+
static int asq(struct ldb_module *module, struct ldb_request *req)
{
+ struct ldb_control *control;
+
+ /* check if there's a paged request control */
+ control = get_control_from_list(req->controls, LDB_CONTROL_ASQ_OID);
+ if (control == NULL) {
+ /* not found go on */
+ return ldb_next_request(module, req);
+ }
+
switch (req->operation) {
case LDB_REQ_SEARCH:
- return asq_search(module, req);
+ return asq_search(module, control, req);
+
+ case LDB_ASYNC_SEARCH:
+ return asq_search_async(module, control, req);
default:
- return ldb_next_request(module, req);
+ return LDB_ERR_PROTOCOL_ERROR;
}
}
@@ -232,6 +597,7 @@ static int asq_init(struct ldb_module *module)
static const struct ldb_module_ops asq_ops = {
.name = "asq",
.request = asq,
+ .async_wait = asq_async_wait,
.init_context = asq_init
};