* Author: Stefan Metzmacher
*/
-#include "includes.h"
-#include "lib/ldb/include/ldb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "lib/ldb/include/ldb_module.h"
-#include "lib/ldb/include/ldb_private.h"
-#include "dsdb/samdb/samdb.h"
-
-struct dsdb_partition {
- struct ldb_module *module;
- struct dsdb_control_current_partition *ctrl;
-};
-
-struct partition_private_data {
- struct dsdb_partition **partitions;
- struct ldb_dn **replicate;
-};
+#include "dsdb/samdb/ldb_modules/partition.h"
struct part_request {
struct ldb_module *module;
return ac;
}
-#define PARTITION_FIND_OP_NOERROR(module, op) do { \
- while (module && module->ops->op == NULL) module = module->next; \
-} while (0)
-
-#define PARTITION_FIND_OP(module, op) do { \
- PARTITION_FIND_OP_NOERROR(module, op); \
- if (module == NULL) { \
- ldb_asprintf_errstring(ldb_module_get_ctx(module), \
- "Unable to find backend operation for " #op ); \
- return LDB_ERR_OPERATIONS_ERROR; \
- } \
-} while (0)
-
/*
* helper functions to call the next module in chain
* */
-static int partition_request(struct ldb_module *module, struct ldb_request *request)
+int partition_request(struct ldb_module *module, struct ldb_request *request)
{
int ret;
switch (request->operation) {
struct partition_context *ac;
struct ldb_module *module;
struct ldb_request *nreq;
- int ret, i;
+ int ret;
struct partition_private_data *data;
+ struct ldb_control *partition_ctrl;
ac = talloc_get_type(req->context, struct partition_context);
data = talloc_get_type(ac->module->private_data, struct partition_private_data);
LDB_ERR_OPERATIONS_ERROR);
}
+ partition_ctrl = ldb_request_get_control(req, DSDB_CONTROL_CURRENT_PARTITION_OID);
+ if (partition_ctrl && (ac->num_requests == 1 || ares->type == LDB_REPLY_ENTRY)) {
+ /* If we didn't fan this request out to mulitple partitions,
+ * or this is an individual search result, we can
+ * deterministily tell the caller what partition this was
+ * written to (repl_meta_data likes to know) */
+ ret = ldb_reply_add_control(ares,
+ DSDB_CONTROL_CURRENT_PARTITION_OID,
+ false, partition_ctrl->data);
+ if (ret != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ ret);
+ }
+ }
+
if (ares->error != LDB_SUCCESS && !ac->got_success) {
return ldb_module_done(ac->req, ares->controls,
ares->response, ares->error);
return ldb_module_done(ac->req, NULL, NULL,
LDB_ERR_OPERATIONS_ERROR);
}
- for (i=0; data && data->partitions && data->partitions[i]; i++) {
- if (ldb_dn_compare(ares->message->dn, data->partitions[i]->ctrl->dn) == 0) {
- struct ldb_control *part_control;
- /* this is a partition root message - make
- sure it isn't one of our fake root
- entries from a parent partition */
- part_control = ldb_request_get_control(req, DSDB_CONTROL_CURRENT_PARTITION_OID);
- if (part_control && part_control->data != data->partitions[i]->ctrl) {
- DEBUG(6,(__location__ ": Discarding partition mount object %s\n",
- ldb_dn_get_linearized(ares->message->dn)));
- talloc_free(ares);
- return LDB_SUCCESS;
- }
- }
- }
return ldb_module_send_entry(ac->req, ares->message, ares->controls);
if (!data || !data->partitions) {
return ldb_next_request(module, req);
}
-
+
if (req->operation != LDB_SEARCH) {
/* Is this a special DN, we need to replicate to every backend? */
for (i=0; data->replicate && data->replicate[i]; i++) {
/* search */
static int partition_search(struct ldb_module *module, struct ldb_request *req)
{
+ int ret;
struct ldb_control **saved_controls;
/* Find backend */
struct partition_private_data *data = talloc_get_type(module->private_data,
struct ldb_search_options_control *search_options = NULL;
struct dsdb_partition *p;
+ ret = partition_reload_if_required(module, data);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
p = find_partition(data, NULL, req);
if (p != NULL) {
/* the caller specified what partition they want the
*/
if (search_options && (search_options->search_options & LDB_SEARCH_OPTION_PHANTOM_ROOT)) {
- int ret, i;
+ int i;
struct partition_context *ac;
if ((search_options->search_options & ~LDB_SEARCH_OPTION_PHANTOM_ROOT) == 0) {
/* We have processed this flag, so we are done with this control now */
return ret;
}
+ ret = partition_reload_if_required(module, data);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
for (i=0; data && data->partitions && data->partitions[i]; i++) {
struct ldb_module *next = data->partitions[i]->module;
PARTITION_FIND_OP(next, start_transaction);
return ret;
}
}
+
+ data->in_transaction++;
+
return LDB_SUCCESS;
}
}
}
+ if (data->in_transaction == 0) {
+ DEBUG(0,("partition end transaction mismatch\n"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ data->in_transaction--;
+
return ldb_next_end_trans(module);
}
}
}
+ if (data->in_transaction == 0) {
+ DEBUG(0,("partition del transaction mismatch\n"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ data->in_transaction--;
+
ret = ldb_next_del_trans(module);
if (ret != LDB_SUCCESS) {
final_ret = ret;
return final_ret;
}
+int partition_primary_sequence_number(struct ldb_module *module, TALLOC_CTX *mem_ctx,
+ enum ldb_sequence_type type, uint64_t *seq_number)
+{
+ int ret;
+ struct ldb_result *res;
+ struct ldb_seqnum_request *tseq;
+ struct ldb_request *treq;
+ struct ldb_seqnum_result *seqr;
+ res = talloc_zero(mem_ctx, struct ldb_result);
+ if (res == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ tseq = talloc_zero(res, struct ldb_seqnum_request);
+ if (tseq == NULL) {
+ talloc_free(res);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ tseq->type = type;
+
+ ret = ldb_build_extended_req(&treq, ldb_module_get_ctx(module), res,
+ LDB_EXTENDED_SEQUENCE_NUMBER,
+ tseq,
+ NULL,
+ res,
+ ldb_extended_default_callback,
+ NULL);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(res);
+ return ret;
+ }
+
+ ret = ldb_next_request(module, treq);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(res);
+ return ret;
+ }
+ ret = ldb_wait(treq->handle, LDB_WAIT_ALL);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(res);
+ return ret;
+ }
+
+ seqr = talloc_get_type(res->extended->data,
+ struct ldb_seqnum_result);
+ if (seqr->flags & LDB_SEQ_TIMESTAMP_SEQUENCE) {
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ ldb_set_errstring(ldb_module_get_ctx(module), "Primary backend in partitions module returned a timestamp based seq number (must return a normal number)");
+ talloc_free(res);
+ return ret;
+ } else {
+ *seq_number = seqr->seq_num;
+ }
+ talloc_free(res);
+ return LDB_SUCCESS;
+}
/* FIXME: This function is still semi-async */
static int partition_sequence_number(struct ldb_module *module, struct ldb_request *req)
switch (seq->type) {
case LDB_SEQ_NEXT:
case LDB_SEQ_HIGHEST_SEQ:
- res = talloc_zero(req, struct ldb_result);
- if (res == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
- tseq = talloc_zero(res, struct ldb_seqnum_request);
- if (tseq == NULL) {
- talloc_free(res);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- tseq->type = seq->type;
- ret = ldb_build_extended_req(&treq, ldb_module_get_ctx(module), res,
- LDB_EXTENDED_SEQUENCE_NUMBER,
- tseq,
- NULL,
- res,
- ldb_extended_default_callback,
- NULL);
+ ret = partition_primary_sequence_number(module, req, seq->type, &seq_number);
if (ret != LDB_SUCCESS) {
- talloc_free(res);
return ret;
}
- ret = ldb_next_request(module, treq);
- if (ret != LDB_SUCCESS) {
- talloc_free(res);
- return ret;
- }
- ret = ldb_wait(treq->handle, LDB_WAIT_ALL);
- if (ret != LDB_SUCCESS) {
- talloc_free(res);
- return ret;
- }
-
- seqr = talloc_get_type(res->extended->data,
- struct ldb_seqnum_result);
- if (seqr->flags & LDB_SEQ_TIMESTAMP_SEQUENCE) {
- timestamp_sequence = seqr->seq_num;
- } else {
- seq_number += seqr->seq_num;
- }
- talloc_free(res);
-
/* Skip the lot if 'data' isn't here yet (initialisation) */
for (i=0; data && data->partitions && data->partitions[i]; i++) {
{
struct partition_private_data *data;
struct partition_context *ac;
+ int ret;
data = talloc_get_type(module->private_data, struct partition_private_data);
- if (!data || !data->partitions) {
+ if (!data) {
return ldb_next_request(module, req);
}
+ ret = partition_reload_if_required(module, data);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
if (strcmp(req->op.extended.oid, LDB_EXTENDED_SEQUENCE_NUMBER) == 0) {
return partition_sequence_number(module, req);
}
+ if (strcmp(req->op.extended.oid, DSDB_EXTENDED_CREATE_PARTITION_OID) == 0) {
+ return partition_create(module, req);
+ }
+
/* forward schemaUpdateNow operation to schema_fsmo module*/
if (strcmp(req->op.extended.oid, DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID) == 0) {
return partition_extended_schema_update_now( module, req );
return partition_send_all(module, ac, req);
}
-static int partition_sort_compare(const void *v1, const void *v2)
-{
- const struct dsdb_partition *p1;
- const struct dsdb_partition *p2;
-
- p1 = *((struct dsdb_partition * const*)v1);
- p2 = *((struct dsdb_partition * const*)v2);
-
- return ldb_dn_compare(p1->ctrl->dn, p2->ctrl->dn);
-}
-
-static int partition_init(struct ldb_module *module)
-{
- int ret, i;
- TALLOC_CTX *mem_ctx = talloc_new(module);
- const char *attrs[] = { "partition", "replicateEntries", "modules", NULL };
- struct ldb_result *res;
- struct ldb_message *msg;
- struct ldb_message_element *partition_attributes;
- struct ldb_message_element *replicate_attributes;
- struct ldb_message_element *modules_attributes;
-
- struct partition_private_data *data;
-
- if (!mem_ctx) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- data = talloc(mem_ctx, struct partition_private_data);
- if (data == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ret = ldb_search(ldb_module_get_ctx(module), mem_ctx, &res,
- ldb_dn_new(mem_ctx, ldb_module_get_ctx(module), "@PARTITION"),
- LDB_SCOPE_BASE, attrs, NULL);
- if (ret != LDB_SUCCESS) {
- talloc_free(mem_ctx);
- return ret;
- }
- if (res->count == 0) {
- talloc_free(mem_ctx);
- return ldb_next_init(module);
- }
-
- if (res->count > 1) {
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
-
- msg = res->msgs[0];
-
- partition_attributes = ldb_msg_find_element(msg, "partition");
- if (!partition_attributes) {
- ldb_set_errstring(ldb_module_get_ctx(module), "partition_init: no partitions specified");
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
- data->partitions = talloc_array(data, struct dsdb_partition *, partition_attributes->num_values + 1);
- if (!data->partitions) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- for (i=0; i < partition_attributes->num_values; i++) {
- char *base = talloc_strdup(data->partitions, (char *)partition_attributes->values[i].data);
- char *p = strchr(base, ':');
- const char *backend;
-
- if (!p) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "invalid form for partition record (missing ':'): %s", base);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
- p[0] = '\0';
- p++;
- if (!p[0]) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "invalid form for partition record (missing backend database): %s", base);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
- data->partitions[i] = talloc(data->partitions, struct dsdb_partition);
- if (!data->partitions[i]) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- data->partitions[i]->ctrl = talloc(data->partitions[i], struct dsdb_control_current_partition);
- if (!data->partitions[i]->ctrl) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- data->partitions[i]->ctrl->version = DSDB_CONTROL_CURRENT_PARTITION_VERSION;
- data->partitions[i]->ctrl->dn = ldb_dn_new(data->partitions[i], ldb_module_get_ctx(module), base);
- if (!data->partitions[i]->ctrl->dn) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: invalid DN in partition record: %s", base);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
-
- backend = samdb_relative_path(ldb_module_get_ctx(module),
- data->partitions[i],
- p);
- if (!backend) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: unable to determine an relative path for partition: %s", base);
- talloc_free(mem_ctx);
- }
- ret = ldb_connect_backend(ldb_module_get_ctx(module), backend, NULL, &data->partitions[i]->module);
- if (ret != LDB_SUCCESS) {
- talloc_free(mem_ctx);
- return ret;
- }
- }
- data->partitions[i] = NULL;
-
- /* sort these into order, most to least specific */
- qsort(data->partitions, partition_attributes->num_values,
- sizeof(*data->partitions), partition_sort_compare);
-
- for (i=0; data->partitions[i]; i++) {
- struct ldb_request *req;
- req = talloc_zero(mem_ctx, struct ldb_request);
- if (req == NULL) {
- ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR, "partition: Out of memory!\n");
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- req->operation = LDB_REQ_REGISTER_PARTITION;
- req->op.reg_partition.dn = data->partitions[i]->ctrl->dn;
- req->callback = ldb_op_default_callback;
-
- ldb_set_timeout(ldb_module_get_ctx(module), req, 0);
-
- req->handle = ldb_handle_new(req, ldb_module_get_ctx(module));
- if (req->handle == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ret = ldb_request(ldb_module_get_ctx(module), req);
- if (ret == LDB_SUCCESS) {
- ret = ldb_wait(req->handle, LDB_WAIT_ALL);
- }
- if (ret != LDB_SUCCESS) {
- ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR, "partition: Unable to register partition with rootdse!\n");
- talloc_free(mem_ctx);
- return LDB_ERR_OTHER;
- }
- talloc_free(req);
- }
-
- replicate_attributes = ldb_msg_find_element(msg, "replicateEntries");
- if (!replicate_attributes) {
- data->replicate = NULL;
- } else {
- data->replicate = talloc_array(data, struct ldb_dn *, replicate_attributes->num_values + 1);
- if (!data->replicate) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- for (i=0; i < replicate_attributes->num_values; i++) {
- data->replicate[i] = ldb_dn_from_ldb_val(data->replicate, ldb_module_get_ctx(module), &replicate_attributes->values[i]);
- if (!ldb_dn_validate(data->replicate[i])) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "invalid DN in partition replicate record: %s",
- replicate_attributes->values[i].data);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
- }
- data->replicate[i] = NULL;
- }
-
- /* Make the private data available to any searches the modules may trigger in initialisation */
- module->private_data = data;
- talloc_steal(module, data);
-
- modules_attributes = ldb_msg_find_element(msg, "modules");
- if (modules_attributes) {
- for (i=0; i < modules_attributes->num_values; i++) {
- struct ldb_dn *base_dn;
- int partition_idx;
- struct dsdb_partition *partition = NULL;
- const char **modules = NULL;
-
- char *base = talloc_strdup(data->partitions, (char *)modules_attributes->values[i].data);
- char *p = strchr(base, ':');
- if (!p) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "invalid form for partition module record (missing ':'): %s", base);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
- p[0] = '\0';
- p++;
- if (!p[0]) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "invalid form for partition module record (missing backend database): %s", base);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
-
- modules = ldb_modules_list_from_string(ldb_module_get_ctx(module), mem_ctx,
- p);
-
- base_dn = ldb_dn_new(mem_ctx, ldb_module_get_ctx(module), base);
- if (!ldb_dn_validate(base_dn)) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- for (partition_idx = 0; data->partitions[partition_idx]; partition_idx++) {
- if (ldb_dn_compare(data->partitions[partition_idx]->ctrl->dn, base_dn) == 0) {
- partition = data->partitions[partition_idx];
- break;
- }
- }
-
- if (!partition) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "invalid form for partition module record (no such partition): %s", base);
- talloc_free(mem_ctx);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
-
- ret = ldb_load_modules_list(ldb_module_get_ctx(module), modules, partition->module, &partition->module);
- if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "loading backend for %s failed: %s",
- base, ldb_errstring(ldb_module_get_ctx(module)));
- talloc_free(mem_ctx);
- return ret;
- }
- ret = ldb_init_module_chain(ldb_module_get_ctx(module), partition->module);
- if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ldb_module_get_ctx(module),
- "partition_init: "
- "initialising backend for %s failed: %s",
- base, ldb_errstring(ldb_module_get_ctx(module)));
- talloc_free(mem_ctx);
- return ret;
- }
- }
- }
-
- ret = ldb_mod_register_control(module, LDB_CONTROL_DOMAIN_SCOPE_OID);
- if (ret != LDB_SUCCESS) {
- ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
- "partition: Unable to register control with rootdse!\n");
- return ret;
- }
-
- ret = ldb_mod_register_control(module, LDB_CONTROL_SEARCH_OPTIONS_OID);
- if (ret != LDB_SUCCESS) {
- ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
- "partition: Unable to register control with rootdse!\n");
- return ret;
- }
-
- talloc_free(mem_ctx);
- return ldb_next_init(module);
-}
-
_PUBLIC_ const struct ldb_module_ops ldb_partition_module_ops = {
.name = "partition",
.init_context = partition_init,
git.samba.org / ira / wip.git / blobdiff