Copyright (C) Andrew Tridgell 2005
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
- ** NOTE! The following LGPL license applies to the ldb
- ** library. This does NOT imply that all of Samba is released
- ** under the LGPL
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 3 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
+ This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
*/
#include "includes.h"
-#include "lib/ldb/include/ldb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "lib/ldb/include/ldb_private.h"
+#include "ldb_module.h"
#include "dsdb/samdb/samdb.h"
-#include "dsdb/common/flags.h"
+#include "dsdb/common/proto.h"
+#include "../libds/common/flags.h"
#include "librpc/gen_ndr/ndr_misc.h"
#include "librpc/gen_ndr/ndr_drsuapi.h"
#include "librpc/gen_ndr/ndr_drsblobs.h"
#include "param/param.h"
+#include "libcli/security/dom_sid.h"
+#include "lib/util/dlinklist.h"
+#include "dsdb/samdb/ldb_modules/util.h"
+#include "lib/util/binsearch.h"
+
+#define W2K3_LINKED_ATTRIBUTES 1
+
+struct replmd_private {
+ TALLOC_CTX *la_ctx;
+ struct la_entry *la_list;
+ TALLOC_CTX *bl_ctx;
+ struct la_backlink *la_backlinks;
+ struct nc_entry {
+ struct nc_entry *prev, *next;
+ struct ldb_dn *dn;
+ uint64_t mod_usn;
+ } *ncs;
+};
+
+struct la_entry {
+ struct la_entry *next, *prev;
+ struct drsuapi_DsReplicaLinkedAttribute *la;
+};
struct replmd_replicated_request {
struct ldb_module *module;
const struct dsdb_schema *schema;
- struct dsdb_extended_replicated_objects *objs;
-
/* the controls we pass down */
struct ldb_control **controls;
+ /* details for the mode where we apply a bunch of inbound replication meessages */
+ bool apply_mode;
uint32_t index_current;
+ struct dsdb_extended_replicated_objects *objs;
struct ldb_message *search_msg;
+
+ uint64_t seq_num;
+
+};
+
+static int replmd_replicated_apply_next(struct replmd_replicated_request *ar);
+
+
+/*
+ initialise the module
+ allocate the private structure and build the list
+ of partition DNs for use by replmd_notify()
+ */
+static int replmd_init(struct ldb_module *module)
+{
+ struct replmd_private *replmd_private;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+
+ replmd_private = talloc_zero(module, struct replmd_private);
+ if (replmd_private == NULL) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ldb_module_set_private(module, replmd_private);
+
+ return ldb_next_init(module);
+}
+
+/*
+ cleanup our per-transaction contexts
+ */
+static void replmd_txn_cleanup(struct replmd_private *replmd_private)
+{
+ talloc_free(replmd_private->la_ctx);
+ replmd_private->la_list = NULL;
+ replmd_private->la_ctx = NULL;
+
+ talloc_free(replmd_private->bl_ctx);
+ replmd_private->la_backlinks = NULL;
+ replmd_private->bl_ctx = NULL;
+}
+
+
+struct la_backlink {
+ struct la_backlink *next, *prev;
+ const char *attr_name;
+ struct GUID forward_guid, target_guid;
+ bool active;
};
+/*
+ process a backlinks we accumulated during a transaction, adding and
+ deleting the backlinks from the target objects
+ */
+static int replmd_process_backlink(struct ldb_module *module, struct la_backlink *bl)
+{
+ struct ldb_dn *target_dn, *source_dn;
+ int ret;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct ldb_message *msg;
+ TALLOC_CTX *tmp_ctx = talloc_new(bl);
+ char *dn_string;
+
+ /*
+ - find DN of target
+ - find DN of source
+ - construct ldb_message
+ - either an add or a delete
+ */
+ ret = dsdb_module_dn_by_guid(module, tmp_ctx, &bl->target_guid, &target_dn);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "Failed to find target DN for linked attribute with GUID %s\n",
+ GUID_string(bl, &bl->target_guid));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = dsdb_module_dn_by_guid(module, tmp_ctx, &bl->forward_guid, &source_dn);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "Failed to find source DN for linked attribute with GUID %s\n",
+ GUID_string(bl, &bl->forward_guid));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ msg = ldb_msg_new(tmp_ctx);
+ if (msg == NULL) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* construct a ldb_message for adding/deleting the backlink */
+ msg->dn = target_dn;
+ dn_string = ldb_dn_get_extended_linearized(tmp_ctx, source_dn, 1);
+ if (!dn_string) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_msg_add_steal_string(msg, bl->attr_name, dn_string);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ msg->elements[0].flags = bl->active?LDB_FLAG_MOD_ADD:LDB_FLAG_MOD_DELETE;
+
+ ret = dsdb_module_modify(module, msg, 0);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "Failed to %s backlink from %s to %s - %s",
+ bl->active?"add":"remove",
+ ldb_dn_get_linearized(source_dn),
+ ldb_dn_get_linearized(target_dn),
+ ldb_errstring(ldb));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ talloc_free(tmp_ctx);
+ return ret;
+}
+
+/*
+ add a backlink to the list of backlinks to add/delete in the prepare
+ commit
+ */
+static int replmd_add_backlink(struct ldb_module *module, const struct dsdb_schema *schema,
+ struct GUID *forward_guid, struct GUID *target_guid,
+ bool active, const struct dsdb_attribute *schema_attr, bool immediate)
+{
+ const struct dsdb_attribute *target_attr;
+ struct la_backlink *bl;
+ struct replmd_private *replmd_private =
+ talloc_get_type_abort(ldb_module_get_private(module), struct replmd_private);
+
+ target_attr = dsdb_attribute_by_linkID(schema, schema_attr->linkID + 1);
+ if (!target_attr) {
+ /*
+ * windows 2003 has a broken schema where the
+ * definition of msDS-IsDomainFor is missing (which is
+ * supposed to be the backlink of the
+ * msDS-HasDomainNCs attribute
+ */
+ return LDB_SUCCESS;
+ }
+
+ /* see if its already in the list */
+ for (bl=replmd_private->la_backlinks; bl; bl=bl->next) {
+ if (GUID_equal(forward_guid, &bl->forward_guid) &&
+ GUID_equal(target_guid, &bl->target_guid) &&
+ (target_attr->lDAPDisplayName == bl->attr_name ||
+ strcmp(target_attr->lDAPDisplayName, bl->attr_name) == 0)) {
+ break;
+ }
+ }
+
+ if (bl) {
+ /* we found an existing one */
+ if (bl->active == active) {
+ return LDB_SUCCESS;
+ }
+ DLIST_REMOVE(replmd_private->la_backlinks, bl);
+ talloc_free(bl);
+ return LDB_SUCCESS;
+ }
+
+ if (replmd_private->bl_ctx == NULL) {
+ replmd_private->bl_ctx = talloc_new(replmd_private);
+ if (replmd_private->bl_ctx == NULL) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ }
+
+ /* its a new one */
+ bl = talloc(replmd_private->bl_ctx, struct la_backlink);
+ if (bl == NULL) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ bl->attr_name = target_attr->lDAPDisplayName;
+ bl->forward_guid = *forward_guid;
+ bl->target_guid = *target_guid;
+ bl->active = active;
+
+ /* the caller may ask for this backlink to be processed
+ immediately */
+ if (immediate) {
+ int ret = replmd_process_backlink(module, bl);
+ talloc_free(bl);
+ return ret;
+ }
+
+ DLIST_ADD(replmd_private->la_backlinks, bl);
+
+ return LDB_SUCCESS;
+}
+
+
+/*
+ * Callback for most write operations in this module:
+ *
+ * notify the repl task that a object has changed. The notifies are
+ * gathered up in the replmd_private structure then written to the
+ * @REPLCHANGED object in each partition during the prepare_commit
+ */
+static int replmd_op_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ int ret;
+ struct replmd_replicated_request *ac =
+ talloc_get_type_abort(req->context, struct replmd_replicated_request);
+ struct replmd_private *replmd_private =
+ talloc_get_type_abort(ldb_module_get_private(ac->module), struct replmd_private);
+ struct nc_entry *modified_partition;
+ struct ldb_control *partition_ctrl;
+ const struct dsdb_control_current_partition *partition;
+
+ struct ldb_control **controls;
+
+ partition_ctrl = ldb_reply_get_control(ares, DSDB_CONTROL_CURRENT_PARTITION_OID);
+
+ /* Remove the 'partition' control from what we pass up the chain */
+ controls = controls_except_specified(ares->controls, ares, partition_ctrl);
+
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, controls,
+ ares->response, ares->error);
+ }
+
+ if (ares->type != LDB_REPLY_DONE) {
+ ldb_set_errstring(ldb_module_get_ctx(ac->module), "Invalid reply type for notify\n!");
+ return ldb_module_done(ac->req, NULL,
+ NULL, LDB_ERR_OPERATIONS_ERROR);
+ }
+
+ if (!partition_ctrl) {
+ return ldb_module_done(ac->req, NULL,
+ NULL, LDB_ERR_OPERATIONS_ERROR);
+ }
+
+ partition = talloc_get_type_abort(partition_ctrl->data,
+ struct dsdb_control_current_partition);
+
+ if (ac->seq_num > 0) {
+ for (modified_partition = replmd_private->ncs; modified_partition;
+ modified_partition = modified_partition->next) {
+ if (ldb_dn_compare(modified_partition->dn, partition->dn) == 0) {
+ break;
+ }
+ }
+
+ if (modified_partition == NULL) {
+ modified_partition = talloc_zero(replmd_private, struct nc_entry);
+ if (!modified_partition) {
+ ldb_oom(ldb_module_get_ctx(ac->module));
+ return ldb_module_done(ac->req, NULL,
+ NULL, LDB_ERR_OPERATIONS_ERROR);
+ }
+ modified_partition->dn = ldb_dn_copy(modified_partition, partition->dn);
+ if (!modified_partition->dn) {
+ ldb_oom(ldb_module_get_ctx(ac->module));
+ return ldb_module_done(ac->req, NULL,
+ NULL, LDB_ERR_OPERATIONS_ERROR);
+ }
+ DLIST_ADD(replmd_private->ncs, modified_partition);
+ }
+
+ if (ac->seq_num > modified_partition->mod_usn) {
+ modified_partition->mod_usn = ac->seq_num;
+ }
+ }
+
+ if (ac->apply_mode) {
+ talloc_free(ares);
+ ac->index_current++;
+
+ ret = replmd_replicated_apply_next(ac);
+ if (ret != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, NULL, NULL, ret);
+ }
+ return ret;
+ } else {
+ /* free the partition control container here, for the
+ * common path. Other cases will have it cleaned up
+ * eventually with the ares */
+ talloc_free(partition_ctrl);
+ return ldb_module_done(ac->req,
+ controls_except_specified(controls, ares, partition_ctrl),
+ ares->response, LDB_SUCCESS);
+ }
+}
+
+
+/*
+ * update a @REPLCHANGED record in each partition if there have been
+ * any writes of replicated data in the partition
+ */
+static int replmd_notify_store(struct ldb_module *module)
+{
+ struct replmd_private *replmd_private =
+ talloc_get_type(ldb_module_get_private(module), struct replmd_private);
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+
+ while (replmd_private->ncs) {
+ int ret;
+ struct nc_entry *modified_partition = replmd_private->ncs;
+
+ ret = dsdb_save_partition_usn(ldb, modified_partition->dn, modified_partition->mod_usn);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to save partition uSN for %s\n",
+ ldb_dn_get_linearized(modified_partition->dn)));
+ return ret;
+ }
+ DLIST_REMOVE(replmd_private->ncs, modified_partition);
+ talloc_free(modified_partition);
+ }
+
+ return LDB_SUCCESS;
+}
+
+
+/*
+ created a replmd_replicated_request context
+ */
static struct replmd_replicated_request *replmd_ctx_init(struct ldb_module *module,
- struct ldb_request *req)
+ struct ldb_request *req)
{
+ struct ldb_context *ldb;
struct replmd_replicated_request *ac;
+ ldb = ldb_module_get_ctx(module);
+
ac = talloc_zero(req, struct replmd_replicated_request);
if (ac == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
return NULL;
}
ac->module = module;
ac->req = req;
+
+ ac->schema = dsdb_get_schema(ldb);
+ if (!ac->schema) {
+ ldb_debug_set(ldb, LDB_DEBUG_FATAL,
+ "replmd_modify: no dsdb_schema loaded");
+ DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
+ return NULL;
+ }
+
return ac;
}
return -1;
}
- return m1->attid - m2->attid;
+ return m1->attid > m2->attid ? 1 : -1;
}
-static void replmd_replPropertyMetaDataCtr1_sort(struct replPropertyMetaDataCtr1 *ctr1,
- const uint32_t *rdn_attid)
+static int replmd_replPropertyMetaDataCtr1_sort(struct replPropertyMetaDataCtr1 *ctr1,
+ const struct dsdb_schema *schema,
+ struct ldb_dn *dn)
{
+ const char *rdn_name;
+ const struct dsdb_attribute *rdn_sa;
+
+ rdn_name = ldb_dn_get_rdn_name(dn);
+ if (!rdn_name) {
+ DEBUG(0,(__location__ ": No rDN for %s?\n", ldb_dn_get_linearized(dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ rdn_sa = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
+ if (rdn_sa == NULL) {
+ DEBUG(0,(__location__ ": No sa found for rDN %s for %s\n", rdn_name, ldb_dn_get_linearized(dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ DEBUG(6,("Sorting rpmd with attid exception %u rDN=%s DN=%s\n",
+ rdn_sa->attributeID_id, rdn_name, ldb_dn_get_linearized(dn)));
+
ldb_qsort(ctr1->array, ctr1->count, sizeof(struct replPropertyMetaData1),
- discard_const_p(void, rdn_attid), (ldb_qsort_cmp_fn_t)replmd_replPropertyMetaData1_attid_sort);
+ discard_const_p(void, &rdn_sa->attributeID_id),
+ (ldb_qsort_cmp_fn_t)replmd_replPropertyMetaData1_attid_sort);
+
+ return LDB_SUCCESS;
}
static int replmd_ldb_message_element_attid_sort(const struct ldb_message_element *e1,
if (!a1 || !a2) {
return strcasecmp(e1->name, e2->name);
}
-
- return a1->attributeID_id - a2->attributeID_id;
+ if (a1->attributeID_id == a2->attributeID_id) {
+ return 0;
+ }
+ return a1->attributeID_id > a2->attributeID_id ? 1 : -1;
}
static void replmd_ldb_message_sort(struct ldb_message *msg,
discard_const_p(void, schema), (ldb_qsort_cmp_fn_t)replmd_ldb_message_element_attid_sort);
}
-static int replmd_op_callback(struct ldb_request *req, struct ldb_reply *ares)
+static int replmd_build_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
+ const struct GUID *invocation_id, uint64_t seq_num,
+ uint64_t local_usn, NTTIME nttime, bool deleted);
+
+
+/*
+ fix up linked attributes in replmd_add.
+ This involves setting up the right meta-data in extended DN
+ components, and creating backlinks to the object
+ */
+static int replmd_add_fix_la(struct ldb_module *module, struct ldb_message_element *el,
+ uint64_t seq_num, const struct GUID *invocationId, time_t t,
+ struct GUID *guid, const struct dsdb_attribute *sa)
{
- struct replmd_replicated_request *ac;
+ int i;
+ TALLOC_CTX *tmp_ctx = talloc_new(el->values);
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct dsdb_schema *schema = dsdb_get_schema(ldb);
+ NTTIME now;
- ac = talloc_get_type(req->context, struct replmd_replicated_request);
+ unix_to_nt_time(&now, t);
- if (!ares) {
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
- if (ares->error != LDB_SUCCESS) {
- return ldb_module_done(ac->req, ares->controls,
- ares->response, ares->error);
- }
+ for (i=0; i<el->num_values; i++) {
+ struct ldb_val *v = &el->values[i];
+ struct dsdb_dn *dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, v, sa->syntax->ldap_oid);
+ struct GUID target_guid;
+ NTSTATUS status;
+ int ret;
- if (ares->type != LDB_REPLY_DONE) {
- ldb_set_errstring(ac->module->ldb,
- "invalid ldb_reply_type in callback");
- talloc_free(ares);
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
+ ret = replmd_build_la_val(el->values, v, dsdb_dn, invocationId,
+ seq_num, seq_num, now, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /* note that the DN already has the extended
+ components from the extended_dn_store module */
+ status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &target_guid, "GUID");
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = replmd_add_backlink(module, schema, guid, &target_guid, true, sa, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
}
- return ldb_module_done(ac->req, ares->controls,
- ares->response, LDB_SUCCESS);
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
}
+
+/*
+ intercept add requests
+ */
static int replmd_add(struct ldb_module *module, struct ldb_request *req)
{
+ struct ldb_context *ldb;
+ struct ldb_control *control;
struct replmd_replicated_request *ac;
- const struct dsdb_schema *schema;
enum ndr_err_code ndr_err;
struct ldb_request *down_req;
struct ldb_message *msg;
- const struct dsdb_attribute *rdn_attr = NULL;
+ const DATA_BLOB *guid_blob;
struct GUID guid;
- struct ldb_val guid_value;
struct replPropertyMetaDataBlob nmd;
struct ldb_val nmd_value;
- uint64_t seq_num;
const struct GUID *our_invocation_id;
time_t t = time(NULL);
NTTIME now;
char *time_str;
int ret;
uint32_t i, ni=0;
+ bool allow_add_guid = false;
+ bool remove_current_guid = false;
+
+ /* check if there's a show relax control (used by provision to say 'I know what I'm doing') */
+ control = ldb_request_get_control(req, LDB_CONTROL_RELAX_OID);
+ if (control) {
+ allow_add_guid = 1;
+ }
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.add.message->dn)) {
return ldb_next_request(module, req);
}
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "replmd_add\n");
+ ldb = ldb_module_get_ctx(module);
- schema = dsdb_get_schema(module->ldb);
- if (!schema) {
- ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
- "replmd_modify: no dsdb_schema loaded");
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_add\n");
ac = replmd_ctx_init(module, req);
if (!ac) {
return LDB_ERR_OPERATIONS_ERROR;
}
- ac->schema = schema;
-
- if (ldb_msg_find_element(req->op.add.message, "objectGUID") != NULL) {
- ldb_debug_set(module->ldb, LDB_DEBUG_ERROR,
+ guid_blob = ldb_msg_find_ldb_val(req->op.add.message, "objectGUID");
+ if ( guid_blob != NULL ) {
+ if( !allow_add_guid ) {
+ ldb_debug_set(ldb, LDB_DEBUG_ERROR,
"replmd_add: it's not allowed to add an object with objectGUID\n");
- return LDB_ERR_UNWILLING_TO_PERFORM;
+ talloc_free(ac);
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ } else {
+ NTSTATUS status = GUID_from_data_blob(guid_blob,&guid);
+ if ( !NT_STATUS_IS_OK(status)) {
+ ldb_debug_set(ldb, LDB_DEBUG_ERROR,
+ "replmd_add: Unable to parse as a GUID the attribute objectGUID\n");
+ talloc_free(ac);
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+ /* we remove this attribute as it can be a string and will not be treated
+ correctly and then we will readd it latter on in the good format*/
+ remove_current_guid = true;
+ }
+ } else {
+ /* a new GUID */
+ guid = GUID_random();
}
/* Get a sequence number from the backend */
- ret = ldb_sequence_number(module->ldb, LDB_SEQ_NEXT, &seq_num);
+ ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ac->seq_num);
if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
return ret;
}
- /* a new GUID */
- guid = GUID_random();
-
- /* get our invicationId */
- our_invocation_id = samdb_ntds_invocation_id(module->ldb);
+ /* get our invocationId */
+ our_invocation_id = samdb_ntds_invocation_id(ldb);
if (!our_invocation_id) {
- ldb_debug_set(module->ldb, LDB_DEBUG_ERROR,
+ ldb_debug_set(ldb, LDB_DEBUG_ERROR,
"replmd_add: unable to find invocationId\n");
+ talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
/* we have to copy the message as the caller might have it as a const */
msg = ldb_msg_copy_shallow(ac, req->op.add.message);
if (msg == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
+ talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
unix_to_nt_time(&now, t);
time_str = ldb_timestring(msg, t);
if (!time_str) {
+ ldb_oom(ldb);
+ talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
+ if (remove_current_guid) {
+ ldb_msg_remove_attr(msg,"objectGUID");
+ }
/*
* remove autogenerated attributes
*/
ret = ldb_msg_add_string(msg, "whenCreated", time_str);
if (ret != LDB_SUCCESS) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ ldb_oom(ldb);
+ talloc_free(ac);
+ return ret;
}
/* build the replication meta_data */
struct replPropertyMetaData1,
nmd.ctr.ctr1.count);
if (!nmd.ctr.ctr1.array) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
+ talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
if (e->name[0] == '@') continue;
- sa = dsdb_attribute_by_lDAPDisplayName(schema, e->name);
+ sa = dsdb_attribute_by_lDAPDisplayName(ac->schema, e->name);
if (!sa) {
- ldb_debug_set(module->ldb, LDB_DEBUG_ERROR,
+ ldb_debug_set(ldb, LDB_DEBUG_ERROR,
"replmd_add: attribute '%s' not defined in schema\n",
e->name);
+ talloc_free(ac);
return LDB_ERR_NO_SUCH_ATTRIBUTE;
}
- if ((sa->systemFlags & 0x00000001) || (sa->systemFlags & 0x00000004)) {
+ if ((sa->systemFlags & DS_FLAG_ATTR_NOT_REPLICATED) || (sa->systemFlags & DS_FLAG_ATTR_IS_CONSTRUCTED)) {
/* if the attribute is not replicated (0x00000001)
* or constructed (0x00000004) it has no metadata
*/
continue;
}
+#if W2K3_LINKED_ATTRIBUTES
+ if (sa->linkID != 0 && dsdb_functional_level(ldb) > DS_DOMAIN_FUNCTION_2000) {
+ ret = replmd_add_fix_la(module, e, ac->seq_num, our_invocation_id, t, &guid, sa);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+ /* linked attributes are not stored in
+ replPropertyMetaData in FL above w2k */
+ continue;
+ }
+#endif
+
m->attid = sa->attributeID_id;
m->version = 1;
m->originating_change_time = now;
m->originating_invocation_id = *our_invocation_id;
- m->originating_usn = seq_num;
- m->local_usn = seq_num;
+ m->originating_usn = ac->seq_num;
+ m->local_usn = ac->seq_num;
ni++;
-
- if (ldb_attr_cmp(e->name, ldb_dn_get_rdn_name(msg->dn))) {
- rdn_attr = sa;
- }
}
/* fix meta data count */
/*
* sort meta data array, and move the rdn attribute entry to the end
*/
- replmd_replPropertyMetaDataCtr1_sort(&nmd.ctr.ctr1, &rdn_attr->attributeID_id);
+ ret = replmd_replPropertyMetaDataCtr1_sort(&nmd.ctr.ctr1, ac->schema, msg->dn);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
/* generated NDR encoded values */
- ndr_err = ndr_push_struct_blob(&guid_value, msg,
- NULL,
- &guid,
- (ndr_push_flags_fn_t)ndr_push_GUID);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
- }
ndr_err = ndr_push_struct_blob(&nmd_value, msg,
- lp_iconv_convenience(ldb_get_opaque(module->ldb, "loadparm")),
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
&nmd,
(ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
+ talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
/*
* add the autogenerated values
*/
- ret = ldb_msg_add_value(msg, "objectGUID", &guid_value, NULL);
+ ret = dsdb_msg_add_guid(msg, &guid, "objectGUID");
if (ret != LDB_SUCCESS) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ ldb_oom(ldb);
+ talloc_free(ac);
+ return ret;
}
ret = ldb_msg_add_string(msg, "whenChanged", time_str);
if (ret != LDB_SUCCESS) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ ldb_oom(ldb);
+ talloc_free(ac);
+ return ret;
}
- ret = samdb_msg_add_uint64(module->ldb, msg, msg, "uSNCreated", seq_num);
+ ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNCreated", ac->seq_num);
if (ret != LDB_SUCCESS) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ ldb_oom(ldb);
+ talloc_free(ac);
+ return ret;
}
- ret = samdb_msg_add_uint64(module->ldb, msg, msg, "uSNChanged", seq_num);
+ ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNChanged", ac->seq_num);
if (ret != LDB_SUCCESS) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ ldb_oom(ldb);
+ talloc_free(ac);
+ return ret;
}
ret = ldb_msg_add_value(msg, "replPropertyMetaData", &nmd_value, NULL);
if (ret != LDB_SUCCESS) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ ldb_oom(ldb);
+ talloc_free(ac);
+ return ret;
}
/*
* sort the attributes by attid before storing the object
*/
- replmd_ldb_message_sort(msg, schema);
+ replmd_ldb_message_sort(msg, ac->schema);
- ret = ldb_build_add_req(&down_req, module->ldb, ac,
+ ret = ldb_build_add_req(&down_req, ldb, ac,
msg,
req->controls,
ac, replmd_op_callback,
req);
if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
return ret;
}
+ /* mark the control done */
+ if (control) {
+ control->critical = 0;
+ }
+
/* go on with the call chain */
return ldb_next_request(module, down_req);
}
+
+/*
+ * update the replPropertyMetaData for one element
+ */
+static int replmd_update_rpmd_element(struct ldb_context *ldb,
+ struct ldb_message *msg,
+ struct ldb_message_element *el,
+ struct replPropertyMetaDataBlob *omd,
+ const struct dsdb_schema *schema,
+ uint64_t *seq_num,
+ const struct GUID *our_invocation_id,
+ NTTIME now)
+{
+ int i;
+ const struct dsdb_attribute *a;
+ struct replPropertyMetaData1 *md1;
+
+ a = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
+ if (a == NULL) {
+ DEBUG(0,(__location__ ": Unable to find attribute %s in schema\n",
+ el->name));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if ((a->systemFlags & DS_FLAG_ATTR_NOT_REPLICATED) || (a->systemFlags & DS_FLAG_ATTR_IS_CONSTRUCTED)) {
+ return LDB_SUCCESS;
+ }
+
+ for (i=0; i<omd->ctr.ctr1.count; i++) {
+ if (a->attributeID_id == omd->ctr.ctr1.array[i].attid) break;
+ }
+
+#if W2K3_LINKED_ATTRIBUTES
+ if (a->linkID != 0 && dsdb_functional_level(ldb) > DS_DOMAIN_FUNCTION_2000) {
+ /* linked attributes are not stored in
+ replPropertyMetaData in FL above w2k, but we do
+ raise the seqnum for the object */
+ if (*seq_num == 0 &&
+ ldb_sequence_number(ldb, LDB_SEQ_NEXT, seq_num) != LDB_SUCCESS) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ return LDB_SUCCESS;
+ }
+#endif
+
+ if (i == omd->ctr.ctr1.count) {
+ /* we need to add a new one */
+ omd->ctr.ctr1.array = talloc_realloc(msg, omd->ctr.ctr1.array,
+ struct replPropertyMetaData1, omd->ctr.ctr1.count+1);
+ if (omd->ctr.ctr1.array == NULL) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ omd->ctr.ctr1.count++;
+ ZERO_STRUCT(omd->ctr.ctr1.array[i]);
+ }
+
+ /* Get a new sequence number from the backend. We only do this
+ * if we have a change that requires a new
+ * replPropertyMetaData element
+ */
+ if (*seq_num == 0) {
+ int ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, seq_num);
+ if (ret != LDB_SUCCESS) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ }
+
+ md1 = &omd->ctr.ctr1.array[i];
+ md1->version++;
+ md1->attid = a->attributeID_id;
+ md1->originating_change_time = now;
+ md1->originating_invocation_id = *our_invocation_id;
+ md1->originating_usn = *seq_num;
+ md1->local_usn = *seq_num;
+
+ return LDB_SUCCESS;
+}
+
+/*
+ * update the replPropertyMetaData object each time we modify an
+ * object. This is needed for DRS replication, as the merge on the
+ * client is based on this object
+ */
+static int replmd_update_rpmd(struct ldb_module *module,
+ const struct dsdb_schema *schema,
+ struct ldb_message *msg, uint64_t *seq_num,
+ time_t t)
+{
+ const struct ldb_val *omd_value;
+ enum ndr_err_code ndr_err;
+ struct replPropertyMetaDataBlob omd;
+ int i;
+ NTTIME now;
+ const struct GUID *our_invocation_id;
+ int ret;
+ const char *attrs[] = { "replPropertyMetaData" , NULL };
+ struct ldb_result *res;
+ struct ldb_context *ldb;
+
+ ldb = ldb_module_get_ctx(module);
+
+ our_invocation_id = samdb_ntds_invocation_id(ldb);
+ if (!our_invocation_id) {
+ /* this happens during an initial vampire while
+ updating the schema */
+ DEBUG(5,("No invocationID - skipping replPropertyMetaData update\n"));
+ return LDB_SUCCESS;
+ }
+
+ unix_to_nt_time(&now, t);
+
+ /* search for the existing replPropertyMetaDataBlob */
+ ret = dsdb_search_dn_with_deleted(ldb, msg, &res, msg->dn, attrs);
+ if (ret != LDB_SUCCESS || res->count != 1) {
+ DEBUG(0,(__location__ ": Object %s failed to find replPropertyMetaData\n",
+ ldb_dn_get_linearized(msg->dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+
+ omd_value = ldb_msg_find_ldb_val(res->msgs[0], "replPropertyMetaData");
+ if (!omd_value) {
+ DEBUG(0,(__location__ ": Object %s does not have a replPropertyMetaData attribute\n",
+ ldb_dn_get_linearized(msg->dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ndr_err = ndr_pull_struct_blob(omd_value, msg,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")), &omd,
+ (ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(0,(__location__ ": Failed to parse replPropertyMetaData for %s\n",
+ ldb_dn_get_linearized(msg->dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (omd.version != 1) {
+ DEBUG(0,(__location__ ": bad version %u in replPropertyMetaData for %s\n",
+ omd.version, ldb_dn_get_linearized(msg->dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ for (i=0; i<msg->num_elements; i++) {
+ ret = replmd_update_rpmd_element(ldb, msg, &msg->elements[i], &omd, schema, seq_num,
+ our_invocation_id, now);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+
+ /*
+ * replmd_update_rpmd_element has done an update if the
+ * seq_num is set
+ */
+ if (*seq_num != 0) {
+ struct ldb_val *md_value;
+ struct ldb_message_element *el;
+
+ md_value = talloc(msg, struct ldb_val);
+ if (md_value == NULL) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = replmd_replPropertyMetaDataCtr1_sort(&omd.ctr.ctr1, schema, msg->dn);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ndr_err = ndr_push_struct_blob(md_value, msg,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
+ &omd,
+ (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(0,(__location__ ": Failed to marshall replPropertyMetaData for %s\n",
+ ldb_dn_get_linearized(msg->dn)));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = ldb_msg_add_empty(msg, "replPropertyMetaData", LDB_FLAG_MOD_REPLACE, &el);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to add updated replPropertyMetaData %s\n",
+ ldb_dn_get_linearized(msg->dn)));
+ return ret;
+ }
+
+ el->num_values = 1;
+ el->values = md_value;
+ }
+
+ return LDB_SUCCESS;
+}
+
+
+struct parsed_dn {
+ struct dsdb_dn *dsdb_dn;
+ struct GUID *guid;
+ struct ldb_val *v;
+};
+
+static int parsed_dn_compare(struct parsed_dn *pdn1, struct parsed_dn *pdn2)
+{
+ return GUID_compare(pdn1->guid, pdn2->guid);
+}
+
+static struct parsed_dn *parsed_dn_find(struct parsed_dn *pdn, int count, struct GUID *guid)
+{
+ struct parsed_dn *ret;
+ BINARY_ARRAY_SEARCH(pdn, count, guid, guid, GUID_compare, ret);
+ return ret;
+}
+
+/*
+ get a series of message element values as an array of DNs and GUIDs
+ the result is sorted by GUID
+ */
+static int get_parsed_dns(struct ldb_module *module, TALLOC_CTX *mem_ctx,
+ struct ldb_message_element *el, struct parsed_dn **pdn,
+ const char *ldap_oid)
+{
+ int i;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+
+ if (el == NULL) {
+ *pdn = NULL;
+ return LDB_SUCCESS;
+ }
+
+ (*pdn) = talloc_array(mem_ctx, struct parsed_dn, el->num_values);
+ if (!*pdn) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ for (i=0; i<el->num_values; i++) {
+ struct ldb_val *v = &el->values[i];
+ NTSTATUS status;
+ struct ldb_dn *dn;
+ struct parsed_dn *p;
+
+ p = &(*pdn)[i];
+
+ p->dsdb_dn = dsdb_dn_parse(*pdn, ldb, v, ldap_oid);
+ if (p->dsdb_dn == NULL) {
+ return LDB_ERR_INVALID_DN_SYNTAX;
+ }
+
+ dn = p->dsdb_dn->dn;
+
+ p->guid = talloc(*pdn, struct GUID);
+ if (p->guid == NULL) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ status = dsdb_get_extended_dn_guid(dn, p->guid, "GUID");
+ if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+ /* we got a DN without a GUID - go find the GUID */
+ int ret = dsdb_find_guid_by_dn(ldb, dn, p->guid);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "Unable to find GUID for DN %s\n",
+ ldb_dn_get_linearized(dn));
+ return ret;
+ }
+ } else if (!NT_STATUS_IS_OK(status)) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* keep a pointer to the original ldb_val */
+ p->v = v;
+ }
+
+ qsort(*pdn, el->num_values, sizeof((*pdn)[0]), (comparison_fn_t)parsed_dn_compare);
+
+ return LDB_SUCCESS;
+}
+
+/*
+ build a new extended DN, including all meta data fields
+
+ DELETED = 1 or missing
+ RMD_ADDTIME = originating_add_time
+ RMD_INVOCID = originating_invocation_id
+ RMD_CHANGETIME = originating_change_time
+ RMD_ORIGINATING_USN = originating_usn
+ RMD_LOCAL_USN = local_usn
+ RMD_VERSION = version
+ */
+static int replmd_build_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
+ const struct GUID *invocation_id, uint64_t seq_num,
+ uint64_t local_usn, NTTIME nttime, bool deleted)
+{
+ struct ldb_dn *dn = dsdb_dn->dn;
+ const char *tstring, *usn_string;
+ struct ldb_val tval;
+ struct ldb_val iid;
+ struct ldb_val usnv, local_usnv;
+ struct ldb_val vers;
+ NTSTATUS status;
+ int ret;
+ const char *dnstring;
+
+ tstring = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)nttime);
+ if (!tstring) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ tval = data_blob_string_const(tstring);
+
+ usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)seq_num);
+ if (!usn_string) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ usnv = data_blob_string_const(usn_string);
+
+ usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)local_usn);
+ if (!usn_string) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ local_usnv = data_blob_string_const(usn_string);
+
+ vers = data_blob_string_const("0");
+
+ status = GUID_to_ndr_blob(invocation_id, dn, &iid);
+ if (!NT_STATUS_IS_OK(status)) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (deleted) {
+ struct ldb_val dv;
+ dv = data_blob_string_const("1");
+ ret = ldb_dn_set_extended_component(dn, "DELETED", &dv);
+ } else {
+ ret = ldb_dn_set_extended_component(dn, "DELETED", NULL);
+ }
+ if (ret != LDB_SUCCESS) return ret;
+ ret = ldb_dn_set_extended_component(dn, "RMD_ADDTIME", &tval);
+ if (ret != LDB_SUCCESS) return ret;
+ ret = ldb_dn_set_extended_component(dn, "RMD_INVOCID", &iid);
+ if (ret != LDB_SUCCESS) return ret;
+ ret = ldb_dn_set_extended_component(dn, "RMD_CHANGETIME", &tval);
+ if (ret != LDB_SUCCESS) return ret;
+ ret = ldb_dn_set_extended_component(dn, "RMD_LOCAL_USN", &local_usnv);
+ if (ret != LDB_SUCCESS) return ret;
+ ret = ldb_dn_set_extended_component(dn, "RMD_ORIGINATING_USN", &usnv);
+ if (ret != LDB_SUCCESS) return ret;
+ ret = ldb_dn_set_extended_component(dn, "RMD_VERSION", &vers);
+ if (ret != LDB_SUCCESS) return ret;
+
+ dnstring = dsdb_dn_get_extended_linearized(mem_ctx, dsdb_dn, 1);
+ if (dnstring == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ *v = data_blob_string_const(dnstring);
+
+ return LDB_SUCCESS;
+}
+
+static int replmd_update_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
+ struct dsdb_dn *old_dsdb_dn, const struct GUID *invocation_id,
+ uint64_t seq_num, uint64_t local_usn, NTTIME nttime, bool deleted);
+
+/*
+ check if any links need upgrading from w2k format
+ */
+static int replmd_check_upgrade_links(struct parsed_dn *dns, uint32_t count, const struct GUID *invocation_id)
+{
+ int i;
+ for (i=0; i<count; i++) {
+ NTSTATUS status;
+ uint32_t version;
+ int ret;
+
+ status = dsdb_get_extended_dn_uint32(dns[i].dsdb_dn->dn, &version, "RMD_VERSION");
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+ continue;
+ }
+
+ /* it's an old one that needs upgrading */
+ ret = replmd_update_la_val(dns, dns[i].v, dns[i].dsdb_dn, dns[i].dsdb_dn, invocation_id,
+ 1, 1, 0, false);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+ return LDB_SUCCESS;
+}
+
+/*
+ update an extended DN, including all meta data fields
+
+ see replmd_build_la_val for value names
+ */
+static int replmd_update_la_val(TALLOC_CTX *mem_ctx, struct ldb_val *v, struct dsdb_dn *dsdb_dn,
+ struct dsdb_dn *old_dsdb_dn, const struct GUID *invocation_id,
+ uint64_t seq_num, uint64_t local_usn, NTTIME nttime, bool deleted)
+{
+ struct ldb_dn *dn = dsdb_dn->dn;
+ const char *tstring, *usn_string;
+ struct ldb_val tval;
+ struct ldb_val iid;
+ struct ldb_val usnv, local_usnv;
+ struct ldb_val vers;
+ const struct ldb_val *old_addtime, *old_version;
+ NTSTATUS status;
+ int ret;
+ const char *dnstring;
+
+ tstring = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)nttime);
+ if (!tstring) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ tval = data_blob_string_const(tstring);
+
+ usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)seq_num);
+ if (!usn_string) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ usnv = data_blob_string_const(usn_string);
+
+ usn_string = talloc_asprintf(mem_ctx, "%llu", (unsigned long long)local_usn);
+ if (!usn_string) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ local_usnv = data_blob_string_const(usn_string);
+
+ status = GUID_to_ndr_blob(invocation_id, dn, &iid);
+ if (!NT_STATUS_IS_OK(status)) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (deleted) {
+ struct ldb_val dv;
+ dv = data_blob_string_const("1");
+ ret = ldb_dn_set_extended_component(dn, "DELETED", &dv);
+ } else {
+ ret = ldb_dn_set_extended_component(dn, "DELETED", NULL);
+ }
+ if (ret != LDB_SUCCESS) return ret;
+
+ /* get the ADDTIME from the original */
+ old_addtime = ldb_dn_get_extended_component(old_dsdb_dn->dn, "RMD_ADDTIME");
+ if (old_addtime == NULL) {
+ old_addtime = &tval;
+ }
+ if (dsdb_dn != old_dsdb_dn) {
+ ret = ldb_dn_set_extended_component(dn, "RMD_ADDTIME", old_addtime);
+ if (ret != LDB_SUCCESS) return ret;
+ }
+
+ /* use our invocation id */
+ ret = ldb_dn_set_extended_component(dn, "RMD_INVOCID", &iid);
+ if (ret != LDB_SUCCESS) return ret;
+
+ /* changetime is the current time */
+ ret = ldb_dn_set_extended_component(dn, "RMD_CHANGETIME", &tval);
+ if (ret != LDB_SUCCESS) return ret;
+
+ /* update the USN */
+ ret = ldb_dn_set_extended_component(dn, "RMD_ORIGINATING_USN", &usnv);
+ if (ret != LDB_SUCCESS) return ret;
+
+ ret = ldb_dn_set_extended_component(dn, "RMD_LOCAL_USN", &local_usnv);
+ if (ret != LDB_SUCCESS) return ret;
+
+ /* increase the version by 1 */
+ old_version = ldb_dn_get_extended_component(old_dsdb_dn->dn, "RMD_VERSION");
+ if (old_version == NULL) {
+ vers = data_blob_string_const("0");
+ } else {
+ char *vstring;
+ vstring = talloc_strndup(dn, (const char *)old_version->data, old_version->length);
+ if (!vstring) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ vstring = talloc_asprintf(dn, "%lu",
+ (unsigned long)strtoul(vstring, NULL, 0)+1);
+ vers = data_blob_string_const(vstring);
+ }
+ ret = ldb_dn_set_extended_component(dn, "RMD_VERSION", &vers);
+ if (ret != LDB_SUCCESS) return ret;
+
+ dnstring = dsdb_dn_get_extended_linearized(mem_ctx, dsdb_dn, 1);
+ if (dnstring == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ *v = data_blob_string_const(dnstring);
+
+ return LDB_SUCCESS;
+}
+
+/*
+ handle adding a linked attribute
+ */
+static int replmd_modify_la_add(struct ldb_module *module,
+ struct dsdb_schema *schema,
+ struct ldb_message *msg,
+ struct ldb_message_element *el,
+ struct ldb_message_element *old_el,
+ const struct dsdb_attribute *schema_attr,
+ uint64_t seq_num,
+ time_t t,
+ struct GUID *msg_guid)
+{
+ int i;
+ struct parsed_dn *dns, *old_dns;
+ TALLOC_CTX *tmp_ctx = talloc_new(msg);
+ int ret;
+ struct ldb_val *new_values = NULL;
+ unsigned int num_new_values = 0;
+ unsigned old_num_values = old_el?old_el->num_values:0;
+ const struct GUID *invocation_id;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ NTTIME now;
+
+ unix_to_nt_time(&now, t);
+
+ ret = get_parsed_dns(module, tmp_ctx, el, &dns, schema_attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = get_parsed_dns(module, tmp_ctx, old_el, &old_dns, schema_attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ invocation_id = samdb_ntds_invocation_id(ldb);
+ if (!invocation_id) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = replmd_check_upgrade_links(old_dns, old_num_values, invocation_id);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /* for each new value, see if it exists already with the same GUID */
+ for (i=0; i<el->num_values; i++) {
+ struct parsed_dn *p = parsed_dn_find(old_dns, old_num_values, dns[i].guid);
+ if (p == NULL) {
+ /* this is a new linked attribute value */
+ new_values = talloc_realloc(tmp_ctx, new_values, struct ldb_val, num_new_values+1);
+ if (new_values == NULL) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = replmd_build_la_val(new_values, &new_values[num_new_values], dns[i].dsdb_dn,
+ invocation_id, seq_num, seq_num, now, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ num_new_values++;
+ } else {
+ /* this is only allowed if the GUID was
+ previously deleted. */
+ const struct ldb_val *v;
+ v = ldb_dn_get_extended_component(p->dsdb_dn->dn, "DELETED");
+ if (v == NULL) {
+ ldb_asprintf_errstring(ldb, "Attribute %s already exists for target GUID %s",
+ el->name, GUID_string(tmp_ctx, p->guid));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
+ }
+ ret = replmd_update_la_val(old_el->values, p->v, dns[i].dsdb_dn, p->dsdb_dn,
+ invocation_id, seq_num, seq_num, now, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ ret = replmd_add_backlink(module, schema, msg_guid, dns[i].guid, true, schema_attr, true);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ /* add the new ones on to the end of the old values, constructing a new el->values */
+ el->values = talloc_realloc(msg->elements, old_el?old_el->values:NULL,
+ struct ldb_val,
+ old_num_values+num_new_values);
+ if (el->values == NULL) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ memcpy(&el->values[old_num_values], new_values, num_new_values*sizeof(struct ldb_val));
+ el->num_values = old_num_values + num_new_values;
+
+ talloc_steal(msg->elements, el->values);
+ talloc_steal(el->values, new_values);
+
+ talloc_free(tmp_ctx);
+
+ /* we now tell the backend to replace all existing values
+ with the one we have constructed */
+ el->flags = LDB_FLAG_MOD_REPLACE;
+
+ return LDB_SUCCESS;
+}
+
+
+/*
+ handle deleting all active linked attributes
+ */
+static int replmd_modify_la_delete(struct ldb_module *module,
+ struct dsdb_schema *schema,
+ struct ldb_message *msg,
+ struct ldb_message_element *el,
+ struct ldb_message_element *old_el,
+ const struct dsdb_attribute *schema_attr,
+ uint64_t seq_num,
+ time_t t,
+ struct GUID *msg_guid)
+{
+ int i;
+ struct parsed_dn *dns, *old_dns;
+ TALLOC_CTX *tmp_ctx = talloc_new(msg);
+ int ret;
+ const struct GUID *invocation_id;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ NTTIME now;
+
+ unix_to_nt_time(&now, t);
+
+ /* check if there is nothing to delete */
+ if ((!old_el || old_el->num_values == 0) &&
+ el->num_values == 0) {
+ return LDB_SUCCESS;
+ }
+
+ if (!old_el || old_el->num_values == 0) {
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ }
+
+ ret = get_parsed_dns(module, tmp_ctx, el, &dns, schema_attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = get_parsed_dns(module, tmp_ctx, old_el, &old_dns, schema_attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ invocation_id = samdb_ntds_invocation_id(ldb);
+ if (!invocation_id) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = replmd_check_upgrade_links(old_dns, old_el->num_values, invocation_id);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ el->values = NULL;
+
+ /* see if we are being asked to delete any links that
+ don't exist or are already deleted */
+ for (i=0; i<el->num_values; i++) {
+ struct parsed_dn *p = &dns[i];
+ struct parsed_dn *p2;
+ const struct ldb_val *v;
+
+ p2 = parsed_dn_find(old_dns, old_el->num_values, p->guid);
+ if (!p2) {
+ ldb_asprintf_errstring(ldb, "Attribute %s doesn't exist for target GUID %s",
+ el->name, GUID_string(tmp_ctx, p->guid));
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ }
+ v = ldb_dn_get_extended_component(p2->dsdb_dn->dn, "DELETED");
+ if (v) {
+ ldb_asprintf_errstring(ldb, "Attribute %s already deleted for target GUID %s",
+ el->name, GUID_string(tmp_ctx, p->guid));
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ }
+ }
+
+ /* for each new value, see if it exists already with the same GUID
+ if it is not already deleted and matches the delete list then delete it
+ */
+ for (i=0; i<old_el->num_values; i++) {
+ struct parsed_dn *p = &old_dns[i];
+ const struct ldb_val *v;
+
+ if (dns && parsed_dn_find(dns, el->num_values, p->guid) == NULL) {
+ continue;
+ }
+
+ v = ldb_dn_get_extended_component(p->dsdb_dn->dn, "DELETED");
+ if (v != NULL) continue;
+
+ ret = replmd_update_la_val(old_el->values, p->v, p->dsdb_dn, p->dsdb_dn,
+ invocation_id, seq_num, seq_num, now, true);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = replmd_add_backlink(module, schema, msg_guid, old_dns[i].guid, false, schema_attr, true);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ el->values = talloc_steal(msg->elements, old_el->values);
+ el->num_values = old_el->num_values;
+
+ talloc_free(tmp_ctx);
+
+ /* we now tell the backend to replace all existing values
+ with the one we have constructed */
+ el->flags = LDB_FLAG_MOD_REPLACE;
+
+ return LDB_SUCCESS;
+}
+
+/*
+ handle replacing a linked attribute
+ */
+static int replmd_modify_la_replace(struct ldb_module *module,
+ struct dsdb_schema *schema,
+ struct ldb_message *msg,
+ struct ldb_message_element *el,
+ struct ldb_message_element *old_el,
+ const struct dsdb_attribute *schema_attr,
+ uint64_t seq_num,
+ time_t t,
+ struct GUID *msg_guid)
+{
+ int i;
+ struct parsed_dn *dns, *old_dns;
+ TALLOC_CTX *tmp_ctx = talloc_new(msg);
+ int ret;
+ const struct GUID *invocation_id;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct ldb_val *new_values = NULL;
+ uint32_t num_new_values = 0;
+ unsigned old_num_values = old_el?old_el->num_values:0;
+ NTTIME now;
+
+ unix_to_nt_time(&now, t);
+
+ /* check if there is nothing to replace */
+ if ((!old_el || old_el->num_values == 0) &&
+ el->num_values == 0) {
+ return LDB_SUCCESS;
+ }
+
+ ret = get_parsed_dns(module, tmp_ctx, el, &dns, schema_attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = get_parsed_dns(module, tmp_ctx, old_el, &old_dns, schema_attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ invocation_id = samdb_ntds_invocation_id(ldb);
+ if (!invocation_id) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = replmd_check_upgrade_links(old_dns, old_num_values, invocation_id);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /* mark all the old ones as deleted */
+ for (i=0; i<old_num_values; i++) {
+ struct parsed_dn *old_p = &old_dns[i];
+ struct parsed_dn *p;
+ const struct ldb_val *v;
+
+ v = ldb_dn_get_extended_component(old_p->dsdb_dn->dn, "DELETED");
+ if (v) continue;
+
+ ret = replmd_add_backlink(module, schema, msg_guid, old_dns[i].guid, false, schema_attr, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ p = parsed_dn_find(dns, el->num_values, old_p->guid);
+ if (p) {
+ /* we don't delete it if we are re-adding it */
+ continue;
+ }
+
+ ret = replmd_update_la_val(old_el->values, old_p->v, old_p->dsdb_dn, old_p->dsdb_dn,
+ invocation_id, seq_num, seq_num, now, true);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ /* for each new value, either update its meta-data, or add it
+ * to old_el
+ */
+ for (i=0; i<el->num_values; i++) {
+ struct parsed_dn *p = &dns[i], *old_p;
+
+ if (old_dns &&
+ (old_p = parsed_dn_find(old_dns,
+ old_num_values, p->guid)) != NULL) {
+ /* update in place */
+ ret = replmd_update_la_val(old_el->values, old_p->v, old_p->dsdb_dn,
+ old_p->dsdb_dn, invocation_id,
+ seq_num, seq_num, now, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ } else {
+ /* add a new one */
+ new_values = talloc_realloc(tmp_ctx, new_values, struct ldb_val,
+ num_new_values+1);
+ if (new_values == NULL) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = replmd_build_la_val(new_values, &new_values[num_new_values], dns[i].dsdb_dn,
+ invocation_id, seq_num, seq_num, now, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ num_new_values++;
+ }
+
+ ret = replmd_add_backlink(module, schema, msg_guid, dns[i].guid, true, schema_attr, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ /* add the new values to the end of old_el */
+ if (num_new_values != 0) {
+ el->values = talloc_realloc(msg->elements, old_el?old_el->values:NULL,
+ struct ldb_val, old_num_values+num_new_values);
+ if (el->values == NULL) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ memcpy(&el->values[old_num_values], &new_values[0],
+ sizeof(struct ldb_val)*num_new_values);
+ el->num_values = old_num_values + num_new_values;
+ talloc_steal(msg->elements, new_values);
+ } else {
+ el->values = old_el->values;
+ el->num_values = old_el->num_values;
+ talloc_steal(msg->elements, el->values);
+ }
+
+ talloc_free(tmp_ctx);
+
+ /* we now tell the backend to replace all existing values
+ with the one we have constructed */
+ el->flags = LDB_FLAG_MOD_REPLACE;
+
+ return LDB_SUCCESS;
+}
+
+
+/*
+ handle linked attributes in modify requests
+ */
+static int replmd_modify_handle_linked_attribs(struct ldb_module *module,
+ struct ldb_message *msg,
+ uint64_t seq_num, time_t t)
+{
+ struct ldb_result *res;
+ int ret, i;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct ldb_message *old_msg;
+ struct dsdb_schema *schema = dsdb_get_schema(ldb);
+ struct GUID old_guid;
+
+ if (seq_num == 0) {
+ /* there the replmd_update_rpmd code has already
+ * checked and saw that there are no linked
+ * attributes */
+ return LDB_SUCCESS;
+ }
+
+#if !W2K3_LINKED_ATTRIBUTES
+ return LDB_SUCCESS;
+#endif
+
+ if (dsdb_functional_level(ldb) == DS_DOMAIN_FUNCTION_2000) {
+ /* don't do anything special for linked attributes */
+ return LDB_SUCCESS;
+ }
+
+ ret = dsdb_module_search_dn(module, msg, &res, msg->dn, NULL,
+ DSDB_SEARCH_SHOW_DELETED |
+ DSDB_SEARCH_REVEAL_INTERNALS |
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ old_msg = res->msgs[0];
+
+ old_guid = samdb_result_guid(old_msg, "objectGUID");
+
+ for (i=0; i<msg->num_elements; i++) {
+ struct ldb_message_element *el = &msg->elements[i];
+ struct ldb_message_element *old_el, *new_el;
+ const struct dsdb_attribute *schema_attr
+ = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
+ if (!schema_attr) {
+ ldb_asprintf_errstring(ldb,
+ "attribute %s is not a valid attribute in schema", el->name);
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
+ }
+ if (schema_attr->linkID == 0) {
+ continue;
+ }
+ if ((schema_attr->linkID & 1) == 1) {
+ /* Odd is for the target. Illegal to modify */
+ ldb_asprintf_errstring(ldb,
+ "attribute %s must not be modified directly, it is a linked attribute", el->name);
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+ old_el = ldb_msg_find_element(old_msg, el->name);
+ switch (el->flags & LDB_FLAG_MOD_MASK) {
+ case LDB_FLAG_MOD_REPLACE:
+ ret = replmd_modify_la_replace(module, schema, msg, el, old_el, schema_attr, seq_num, t, &old_guid);
+ break;
+ case LDB_FLAG_MOD_DELETE:
+ ret = replmd_modify_la_delete(module, schema, msg, el, old_el, schema_attr, seq_num, t, &old_guid);
+ break;
+ case LDB_FLAG_MOD_ADD:
+ ret = replmd_modify_la_add(module, schema, msg, el, old_el, schema_attr, seq_num, t, &old_guid);
+ break;
+ default:
+ ldb_asprintf_errstring(ldb,
+ "invalid flags 0x%x for %s linked attribute",
+ el->flags, el->name);
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ if (old_el) {
+ ldb_msg_remove_attr(old_msg, el->name);
+ }
+ ldb_msg_add_empty(old_msg, el->name, 0, &new_el);
+ new_el->num_values = el->num_values;
+ new_el->values = el->values;
+
+ /* TODO: this relises a bit too heavily on the exact
+ behaviour of ldb_msg_find_element and
+ ldb_msg_remove_element */
+ old_el = ldb_msg_find_element(msg, el->name);
+ if (old_el != el) {
+ ldb_msg_remove_element(msg, old_el);
+ i--;
+ }
+ }
+
+ talloc_free(res);
+ return ret;
+}
+
+
+
static int replmd_modify(struct ldb_module *module, struct ldb_request *req)
{
+ struct ldb_context *ldb;
struct replmd_replicated_request *ac;
- const struct dsdb_schema *schema;
struct ldb_request *down_req;
struct ldb_message *msg;
- int ret;
time_t t = time(NULL);
- uint64_t seq_num;
+ int ret;
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.mod.message->dn)) {
return ldb_next_request(module, req);
}
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "replmd_modify\n");
+ ldb = ldb_module_get_ctx(module);
- schema = dsdb_get_schema(module->ldb);
- if (!schema) {
- ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
- "replmd_modify: no dsdb_schema loaded");
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_modify\n");
ac = replmd_ctx_init(module, req);
if (!ac) {
return LDB_ERR_OPERATIONS_ERROR;
}
- ac->schema = schema;
-
/* we have to copy the message as the caller might have it as a const */
msg = ldb_msg_copy_shallow(ac, req->op.mod.message);
if (msg == NULL) {
+ ldb_oom(ldb);
talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
+ ret = replmd_update_rpmd(module, ac->schema, msg, &ac->seq_num, t);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+
+ ret = replmd_modify_handle_linked_attribs(module, msg, ac->seq_num, t);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+
/* TODO:
- * - get the whole old object
- * - if the old object doesn't exist report an error
- * - give an error when a readonly attribute should
- * be modified
- * - merge the changed into the old object
- * if the caller set values to the same value
- * ignore the attribute, return success when no
- * attribute was changed
- * - calculate the new replPropertyMetaData attribute
+ * - replace the old object with the newly constructed one
*/
- if (add_time_element(msg, "whenChanged", t) != LDB_SUCCESS) {
+ ret = ldb_build_mod_req(&down_req, ldb, ac,
+ msg,
+ req->controls,
+ ac, replmd_op_callback,
+ req);
+ if (ret != LDB_SUCCESS) {
talloc_free(ac);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ret;
}
+ talloc_steal(down_req, msg);
- /* Get a sequence number from the backend */
- ret = ldb_sequence_number(module->ldb, LDB_SEQ_NEXT, &seq_num);
- if (ret == LDB_SUCCESS) {
- if (add_uint64_element(msg, "uSNChanged", seq_num) != LDB_SUCCESS) {
+ /* we only change whenChanged and uSNChanged if the seq_num
+ has changed */
+ if (ac->seq_num != 0) {
+ if (add_time_element(msg, "whenChanged", t) != LDB_SUCCESS) {
talloc_free(ac);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ret;
}
+
+ if (add_uint64_element(msg, "uSNChanged", ac->seq_num) != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+ }
+
+ /* go on with the call chain */
+ return ldb_next_request(module, down_req);
+}
+
+static int replmd_rename_callback(struct ldb_request *req, struct ldb_reply *ares);
+
+/*
+ handle a rename request
+
+ On a rename we need to do an extra ldb_modify which sets the
+ whenChanged and uSNChanged attributes. We do this in a callback after the success.
+ */
+static int replmd_rename(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_context *ldb;
+ struct replmd_replicated_request *ac;
+ int ret;
+ struct ldb_request *down_req;
+
+ /* do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.mod.message->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ ldb = ldb_module_get_ctx(module);
+
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_rename\n");
+
+ ac = replmd_ctx_init(module, req);
+ if (!ac) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_build_rename_req(&down_req, ldb, ac,
+ ac->req->op.rename.olddn,
+ ac->req->op.rename.newdn,
+ ac->req->controls,
+ ac, replmd_rename_callback,
+ ac->req);
+
+ if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+
+ /* go on with the call chain */
+ return ldb_next_request(module, down_req);
+}
+
+/* After the rename is compleated, update the whenchanged etc */
+static int replmd_rename_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ struct ldb_context *ldb;
+ struct replmd_replicated_request *ac;
+ struct ldb_request *down_req;
+ struct ldb_message *msg;
+ time_t t = time(NULL);
+ int ret;
+
+ ac = talloc_get_type(req->context, struct replmd_replicated_request);
+ ldb = ldb_module_get_ctx(ac->module);
+
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
+
+ if (ares->type != LDB_REPLY_DONE) {
+ ldb_set_errstring(ldb,
+ "invalid ldb_reply_type in callback");
+ talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+
+ /* Get a sequence number from the backend */
+ ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ac->seq_num);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
/* TODO:
- * - sort the attributes by attid with replmd_ldb_message_sort()
* - replace the old object with the newly constructed one
*/
- ret = ldb_build_mod_req(&down_req, module->ldb, ac,
+ msg = ldb_msg_new(ac);
+ if (msg == NULL) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ msg->dn = ac->req->op.rename.newdn;
+
+ ret = ldb_build_mod_req(&down_req, ldb, ac,
msg,
req->controls,
ac, replmd_op_callback,
req);
+
if (ret != LDB_SUCCESS) {
+ talloc_free(ac);
return ret;
}
talloc_steal(down_req, msg);
- /* go on with the call chain */
- return ldb_next_request(module, down_req);
+ if (add_time_element(msg, "whenChanged", t) != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+
+ if (add_uint64_element(msg, "uSNChanged", ac->seq_num) != LDB_SUCCESS) {
+ talloc_free(ac);
+ return ret;
+ }
+
+ /* go on with the call chain - do the modify after the rename */
+ return ldb_next_request(ac->module, down_req);
}
-static int replmd_replicated_request_error(struct replmd_replicated_request *ar, int ret)
+/* remove forwards and backlinks as needed when an object
+ is deleted */
+static int replmd_delete_remove_link(struct ldb_module *module,
+ struct dsdb_schema *schema,
+ struct ldb_dn *dn,
+ struct ldb_message_element *el,
+ const struct dsdb_attribute *sa)
{
- return ret;
+ int i;
+ TALLOC_CTX *tmp_ctx = talloc_new(module);
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+
+ for (i=0; i<el->num_values; i++) {
+ struct dsdb_dn *dsdb_dn;
+ NTSTATUS status;
+ int ret;
+ struct GUID guid2;
+ struct ldb_message *msg;
+ const struct dsdb_attribute *target_attr;
+ struct ldb_message_element *el2;
+ struct ldb_val dn_val;
+
+ if (dsdb_dn_is_deleted_val(&el->values[i])) {
+ continue;
+ }
+
+ dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, &el->values[i], sa->syntax->ldap_oid);
+ if (!dsdb_dn) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &guid2, "GUID");
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* remove the link */
+ msg = ldb_msg_new(tmp_ctx);
+ if (!msg) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+
+ msg->dn = dsdb_dn->dn;
+
+ target_attr = dsdb_attribute_by_linkID(schema, sa->linkID ^ 1);
+ if (target_attr == NULL) {
+ continue;
+ }
+
+ ret = ldb_msg_add_empty(msg, target_attr->lDAPDisplayName, LDB_FLAG_MOD_DELETE, &el2);
+ if (ret != LDB_SUCCESS) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ dn_val = data_blob_string_const(ldb_dn_get_linearized(dn));
+ el2->values = &dn_val;
+ el2->num_values = 1;
+
+ ret = dsdb_module_modify(module, msg, 0);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
}
-static int replmd_replicated_request_werror(struct replmd_replicated_request *ar, WERROR status)
+
+/*
+ handle update of replication meta data for deletion of objects
+
+ This also handles the mapping of delete to a rename operation
+ to allow deletes to be replicated.
+ */
+static int replmd_delete(struct ldb_module *module, struct ldb_request *req)
{
int ret = LDB_ERR_OTHER;
- /* TODO: do some error mapping */
- return ret;
-}
+ bool retb;
+ struct ldb_dn *old_dn, *new_dn;
+ const char *rdn_name;
+ const struct ldb_val *rdn_value, *new_rdn_value;
+ struct GUID guid;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct dsdb_schema *schema = dsdb_get_schema(ldb);
+ struct ldb_message *msg, *old_msg;
+ struct ldb_message_element *el;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_result *res, *parent_res;
+ const char *preserved_attrs[] = {
+ /* yes, this really is a hard coded list. See MS-ADTS
+ section 3.1.1.5.5.1.1 */
+ "nTSecurityDescriptor", "attributeID", "attributeSyntax", "dNReferenceUpdate", "dNSHostName",
+ "flatName", "governsID", "groupType", "instanceType", "lDAPDisplayName", "legacyExchangeDN",
+ "isDeleted", "isRecycled", "lastKnownParent", "msDS-LastKnownRDN", "mS-DS-CreatorSID",
+ "mSMQOwnerID", "nCName", "objectClass", "distinguishedName", "objectGUID", "objectSid",
+ "oMSyntax", "proxiedObjectName", "name", "replPropertyMetaData", "sAMAccountName",
+ "securityIdentifier", "sIDHistory", "subClassOf", "systemFlags", "trustPartner", "trustDirection",
+ "trustType", "trustAttributes", "userAccountControl", "uSNChanged", "uSNCreated", "whenCreate",
+ NULL};
+ uint32_t el_count = 0;
+ int i;
+
+ tmp_ctx = talloc_new(ldb);
+
+ old_dn = ldb_dn_copy(tmp_ctx, req->op.del.dn);
+
+ /* we need the complete msg off disk, so we can work out which
+ attributes need to be removed */
+ ret = dsdb_module_search_dn(module, tmp_ctx, &res, old_dn, NULL,
+ DSDB_SEARCH_SHOW_DELETED |
+ DSDB_SEARCH_REVEAL_INTERNALS |
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ old_msg = res->msgs[0];
-static int replmd_replicated_apply_next(struct replmd_replicated_request *ar);
+ /* work out where we will be renaming this object to */
+ ret = dsdb_get_deleted_objects_dn(ldb, tmp_ctx, old_dn, &new_dn);
+ if (ret != LDB_SUCCESS) {
+ /* this is probably an attempted delete on a partition
+ * that doesn't allow delete operations, such as the
+ * schema partition */
+ ldb_asprintf_errstring(ldb, "No Deleted Objects container for DN %s",
+ ldb_dn_get_linearized(old_dn));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
-static int replmd_replicated_apply_add_callback(struct ldb_request *req,
- struct ldb_reply *ares)
-{
- struct replmd_replicated_request *ar = talloc_get_type(req->context,
- struct replmd_replicated_request);
- int ret;
+ rdn_name = ldb_dn_get_rdn_name(old_dn);
+ rdn_value = ldb_dn_get_rdn_val(old_dn);
+ /* get the objects GUID from the search we just did */
+ guid = samdb_result_guid(old_msg, "objectGUID");
- if (!ares) {
- return ldb_module_done(ar->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
+ /* Add a formatted child */
+ retb = ldb_dn_add_child_fmt(new_dn, "%s=%s\\0ADEL:%s",
+ rdn_name,
+ rdn_value->data,
+ GUID_string(tmp_ctx, &guid));
+ if (!retb) {
+ DEBUG(0,(__location__ ": Unable to add a formatted child to dn: %s",
+ ldb_dn_get_linearized(new_dn)));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
}
- if (ares->error != LDB_SUCCESS) {
- return ldb_module_done(ar->req, ares->controls,
- ares->response, ares->error);
+
+ /*
+ now we need to modify the object in the following ways:
+
+ - add isDeleted=TRUE
+ - update rDN and name, with new rDN
+ - remove linked attributes
+ - remove objectCategory and sAMAccountType
+ - remove attribs not on the preserved list
+ - preserved if in above list, or is rDN
+ - remove all linked attribs from this object
+ - remove all links from other objects to this object
+ - add lastKnownParent
+ - update replPropertyMetaData?
+
+ see MS-ADTS "Tombstone Requirements" section 3.1.1.5.5.1.1
+ */
+
+ msg = ldb_msg_new(tmp_ctx);
+ if (msg == NULL) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
}
- if (ares->type != LDB_REPLY_DONE) {
- ldb_set_errstring(ar->module->ldb, "Invalid reply type\n!");
- return ldb_module_done(ar->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
+ msg->dn = old_dn;
+
+ ret = ldb_msg_add_string(msg, "isDeleted", "TRUE");
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to add isDeleted string to the msg\n"));
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
+
+ /* we need the storage form of the parent GUID */
+ ret = dsdb_module_search_dn(module, tmp_ctx, &parent_res,
+ ldb_dn_get_parent(tmp_ctx, old_dn), NULL,
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
+ DSDB_SEARCH_REVEAL_INTERNALS);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ ret = ldb_msg_add_steal_string(msg, "lastKnownParent",
+ ldb_dn_get_extended_linearized(tmp_ctx, parent_res->msgs[0]->dn, 1));
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to add lastKnownParent string to the msg\n"));
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
+
+ /* work out which of the old attributes we will be removing */
+ for (i=0; i<old_msg->num_elements; i++) {
+ const struct dsdb_attribute *sa;
+ el = &old_msg->elements[i];
+ sa = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
+ if (!sa) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ if (ldb_attr_cmp(el->name, rdn_name) == 0) {
+ /* don't remove the rDN */
+ continue;
+ }
+
+ if (sa->linkID) {
+ ret = replmd_delete_remove_link(module, schema, old_dn, el, sa);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ }
+
+ if (!sa->linkID && ldb_attr_in_list(preserved_attrs, el->name)) {
+ continue;
+ }
+
+ ret = ldb_msg_add_empty(msg, el->name, LDB_FLAG_MOD_DELETE, &el);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ ldb_module_oom(module);
+ return ret;
+ }
}
- talloc_free(ares);
- ar->index_current++;
+ /* work out what the new rdn value is, for updating the
+ rDN and name fields */
+ new_rdn_value = ldb_dn_get_rdn_val(new_dn);
+ ret = ldb_msg_add_value(msg, rdn_name, new_rdn_value, &el);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ el->flags = LDB_FLAG_MOD_REPLACE;
+
+ el = ldb_msg_find_element(old_msg, "name");
+ if (el) {
+ ret = ldb_msg_add_value(msg, "name", new_rdn_value, &el);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ el->flags = LDB_FLAG_MOD_REPLACE;
+ }
+
+ ret = dsdb_module_modify(module, msg, 0);
+ if (ret != LDB_SUCCESS){
+ ldb_asprintf_errstring(ldb, "replmd_delete: Failed to modify object %s in delete - %s",
+ ldb_dn_get_linearized(old_dn), ldb_errstring(ldb));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /* now rename onto the new DN */
+ ret = dsdb_module_rename(module, old_dn, new_dn, 0);
+ if (ret != LDB_SUCCESS){
+ DEBUG(0,(__location__ ": Failed to rename object from '%s' to '%s' - %s\n",
+ ldb_dn_get_linearized(old_dn),
+ ldb_dn_get_linearized(new_dn),
+ ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ talloc_free(tmp_ctx);
+
+ return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
+}
- ret = replmd_replicated_apply_next(ar);
- if (ret != LDB_SUCCESS) {
- return ldb_module_done(ar->req, NULL, NULL, ret);
- }
- return LDB_SUCCESS;
+
+static int replmd_replicated_request_error(struct replmd_replicated_request *ar, int ret)
+{
+ return ret;
+}
+
+static int replmd_replicated_request_werror(struct replmd_replicated_request *ar, WERROR status)
+{
+ int ret = LDB_ERR_OTHER;
+ /* TODO: do some error mapping */
+ return ret;
}
static int replmd_replicated_apply_add(struct replmd_replicated_request *ar)
{
+ struct ldb_context *ldb;
struct ldb_request *change_req;
enum ndr_err_code ndr_err;
struct ldb_message *msg;
struct replPropertyMetaDataBlob *md;
struct ldb_val md_value;
uint32_t i;
- uint64_t seq_num;
int ret;
/*
* same name exist
*/
+ ldb = ldb_module_get_ctx(ar->module);
msg = ar->objs->objects[ar->index_current].msg;
md = ar->objs->objects[ar->index_current].meta_data;
- ret = ldb_sequence_number(ar->module->ldb, LDB_SEQ_NEXT, &seq_num);
+ ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ar->seq_num);
if (ret != LDB_SUCCESS) {
return replmd_replicated_request_error(ar, ret);
}
return replmd_replicated_request_error(ar, ret);
}
- ret = samdb_msg_add_uint64(ar->module->ldb, msg, msg, "uSNCreated", seq_num);
+ ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNCreated", ar->seq_num);
if (ret != LDB_SUCCESS) {
return replmd_replicated_request_error(ar, ret);
}
- ret = samdb_msg_add_uint64(ar->module->ldb, msg, msg, "uSNChanged", seq_num);
+ ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNChanged", ar->seq_num);
if (ret != LDB_SUCCESS) {
return replmd_replicated_request_error(ar, ret);
}
+ /* remove any message elements that have zero values */
+ for (i=0; i<msg->num_elements; i++) {
+ struct ldb_message_element *el = &msg->elements[i];
+
+ if (el->num_values == 0) {
+ DEBUG(4,(__location__ ": Removing attribute %s with num_values==0\n",
+ el->name));
+ memmove(el, el+1, sizeof(*el)*(msg->num_elements - (i+1)));
+ msg->num_elements--;
+ i--;
+ continue;
+ }
+ }
+
/*
* the meta data array is already sorted by the caller
*/
for (i=0; i < md->ctr.ctr1.count; i++) {
- md->ctr.ctr1.array[i].local_usn = seq_num;
+ md->ctr.ctr1.array[i].local_usn = ar->seq_num;
}
ndr_err = ndr_push_struct_blob(&md_value, msg,
- lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")),
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
md,
(ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
replmd_ldb_message_sort(msg, ar->schema);
+ if (DEBUGLVL(4)) {
+ char *s = ldb_ldif_message_string(ldb, ar, LDB_CHANGETYPE_ADD, msg);
+ DEBUG(4, ("DRS replication add message:\n%s\n", s));
+ talloc_free(s);
+ }
+
ret = ldb_build_add_req(&change_req,
- ar->module->ldb,
+ ldb,
ar,
msg,
ar->controls,
ar,
- replmd_replicated_apply_add_callback,
+ replmd_op_callback,
ar->req);
if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
return ldb_next_request(ar->module, change_req);
}
-static int replmd_replPropertyMetaData1_conflict_compare(struct replPropertyMetaData1 *m1,
- struct replPropertyMetaData1 *m2)
+/*
+ return true if an update is newer than an existing entry
+ see section 5.11 of MS-ADTS
+*/
+static bool replmd_update_is_newer(const struct GUID *current_invocation_id,
+ const struct GUID *update_invocation_id,
+ uint32_t current_version,
+ uint32_t update_version,
+ NTTIME current_change_time,
+ NTTIME update_change_time)
{
- int ret;
-
- if (m1->version != m2->version) {
- return m1->version - m2->version;
+ if (update_version != current_version) {
+ return update_version > current_version;
}
-
- if (m1->originating_change_time != m2->originating_change_time) {
- return m1->originating_change_time - m2->originating_change_time;
+ if (update_change_time > current_change_time) {
+ return true;
}
-
- ret = GUID_compare(&m1->originating_invocation_id, &m2->originating_invocation_id);
- if (ret != 0) {
- return ret;
+ if (update_change_time == current_change_time) {
+ return GUID_compare(update_invocation_id, current_invocation_id) > 0;
}
-
- return m1->originating_usn - m2->originating_usn;
+ return false;
}
-static int replmd_replicated_apply_merge_callback(struct ldb_request *req,
- struct ldb_reply *ares)
+static bool replmd_replPropertyMetaData1_is_newer(struct replPropertyMetaData1 *cur_m,
+ struct replPropertyMetaData1 *new_m)
{
- struct replmd_replicated_request *ar = talloc_get_type(req->context,
- struct replmd_replicated_request);
- int ret;
-
- if (!ares) {
- return ldb_module_done(ar->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
- if (ares->error != LDB_SUCCESS) {
- return ldb_module_done(ar->req, ares->controls,
- ares->response, ares->error);
- }
-
- if (ares->type != LDB_REPLY_DONE) {
- ldb_set_errstring(ar->module->ldb, "Invalid reply type\n!");
- return ldb_module_done(ar->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
-
- talloc_free(ares);
- ar->index_current++;
-
- ret = replmd_replicated_apply_next(ar);
- if (ret != LDB_SUCCESS) {
- return ldb_module_done(ar->req, NULL, NULL, ret);
- }
-
- return LDB_SUCCESS;
+ return replmd_update_is_newer(&cur_m->originating_invocation_id,
+ &new_m->originating_invocation_id,
+ cur_m->version,
+ new_m->version,
+ cur_m->originating_change_time,
+ new_m->originating_change_time);
}
static int replmd_replicated_apply_merge(struct replmd_replicated_request *ar)
{
+ struct ldb_context *ldb;
struct ldb_request *change_req;
enum ndr_err_code ndr_err;
struct ldb_message *msg;
struct ldb_val nmd_value;
uint32_t i,j,ni=0;
uint32_t removed_attrs = 0;
- uint64_t seq_num;
int ret;
+ ldb = ldb_module_get_ctx(ar->module);
msg = ar->objs->objects[ar->index_current].msg;
rmd = ar->objs->objects[ar->index_current].meta_data;
ZERO_STRUCT(omd);
omd.version = 1;
/*
- * TODO: add rename conflict handling
+ * TODO: check repl data is correct after a rename
*/
if (ldb_dn_compare(msg->dn, ar->search_msg->dn) != 0) {
- ldb_debug_set(ar->module->ldb, LDB_DEBUG_FATAL, "replmd_replicated_apply_merge[%u]: rename not supported",
- ar->index_current);
- ldb_debug(ar->module->ldb, LDB_DEBUG_FATAL, "%s => %s\n",
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_replicated_request rename %s => %s\n",
ldb_dn_get_linearized(ar->search_msg->dn),
ldb_dn_get_linearized(msg->dn));
- return replmd_replicated_request_werror(ar, WERR_NOT_SUPPORTED);
- }
-
- ret = ldb_sequence_number(ar->module->ldb, LDB_SEQ_NEXT, &seq_num);
- if (ret != LDB_SUCCESS) {
- return replmd_replicated_request_error(ar, ret);
+ /* we can't use dsdb_module_rename() here as we need
+ the rename call to be intercepted by this module, to
+ allow it to process linked attribute changes */
+ if (ldb_rename(ldb, ar->search_msg->dn, msg->dn) != LDB_SUCCESS) {
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "replmd_replicated_request rename %s => %s failed - %s\n",
+ ldb_dn_get_linearized(ar->search_msg->dn),
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ldb));
+ return replmd_replicated_request_werror(ar, WERR_DS_DRA_DB_ERROR);
+ }
}
/* find existing meta data */
omd_value = ldb_msg_find_ldb_val(ar->search_msg, "replPropertyMetaData");
if (omd_value) {
ndr_err = ndr_pull_struct_blob(omd_value, ar,
- lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")), &omd,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")), &omd,
(ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
for (i=0; i < rmd->ctr.ctr1.count; i++) {
bool found = false;
- rmd->ctr.ctr1.array[i].local_usn = seq_num;
-
for (j=0; j < ni; j++) {
- int cmp;
+ bool cmp;
if (rmd->ctr.ctr1.array[i].attid != nmd.ctr.ctr1.array[j].attid) {
continue;
}
- cmp = replmd_replPropertyMetaData1_conflict_compare(&rmd->ctr.ctr1.array[i],
- &nmd.ctr.ctr1.array[j]);
- if (cmp > 0) {
+ cmp = replmd_replPropertyMetaData1_is_newer(&nmd.ctr.ctr1.array[j],
+ &rmd->ctr.ctr1.array[i]);
+ if (cmp) {
/* replace the entry */
nmd.ctr.ctr1.array[j] = rmd->ctr.ctr1.array[i];
found = true;
break;
}
+ DEBUG(1,("Discarding older DRS attribute update to %s on %s from %s\n",
+ msg->elements[i-removed_attrs].name,
+ ldb_dn_get_linearized(msg->dn),
+ GUID_string(ar, &rmd->ctr.ctr1.array[i].originating_invocation_id)));
+
/* we don't want to apply this change so remove the attribute */
ldb_msg_remove_element(msg, &msg->elements[i-removed_attrs]);
removed_attrs++;
*
* sort the new meta data array
*/
- {
- struct replPropertyMetaData1 *rdn_p;
- uint32_t rdn_idx = omd.ctr.ctr1.count - 1;
-
- rdn_p = &nmd.ctr.ctr1.array[rdn_idx];
- replmd_replPropertyMetaDataCtr1_sort(&nmd.ctr.ctr1, &rdn_p->attid);
- }
-
- /* create the meta data value */
- ndr_err = ndr_push_struct_blob(&nmd_value, msg,
- lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")),
- &nmd,
- (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
- return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
+ ret = replmd_replPropertyMetaDataCtr1_sort(&nmd.ctr.ctr1, ar->schema, msg->dn);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
/*
* check if some replicated attributes left, otherwise skip the ldb_modify() call
*/
if (msg->num_elements == 0) {
- ldb_debug(ar->module->ldb, LDB_DEBUG_TRACE, "replmd_replicated_apply_merge[%u]: skip replace\n",
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_replicated_apply_merge[%u]: skip replace\n",
ar->index_current);
ar->index_current++;
return replmd_replicated_apply_next(ar);
}
- ldb_debug(ar->module->ldb, LDB_DEBUG_TRACE, "replmd_replicated_apply_merge[%u]: replace %u attributes\n",
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_replicated_apply_merge[%u]: replace %u attributes\n",
ar->index_current, msg->num_elements);
+ ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &ar->seq_num);
+ if (ret != LDB_SUCCESS) {
+ return replmd_replicated_request_error(ar, ret);
+ }
+
+ for (i=0; i<ni; i++) {
+ nmd.ctr.ctr1.array[i].local_usn = ar->seq_num;
+ }
+
+ /* create the meta data value */
+ ndr_err = ndr_push_struct_blob(&nmd_value, msg,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
+ &nmd,
+ (ndr_push_flags_fn_t)ndr_push_replPropertyMetaDataBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
+ return replmd_replicated_request_werror(ar, ntstatus_to_werror(nt_status));
+ }
+
/*
* when we know that we'll modify the record, add the whenChanged, uSNChanged
* and replPopertyMetaData attributes
if (ret != LDB_SUCCESS) {
return replmd_replicated_request_error(ar, ret);
}
- ret = samdb_msg_add_uint64(ar->module->ldb, msg, msg, "uSNChanged", seq_num);
+ ret = samdb_msg_add_uint64(ldb, msg, msg, "uSNChanged", ar->seq_num);
if (ret != LDB_SUCCESS) {
return replmd_replicated_request_error(ar, ret);
}
msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
}
+ if (DEBUGLVL(4)) {
+ char *s = ldb_ldif_message_string(ldb, ar, LDB_CHANGETYPE_MODIFY, msg);
+ DEBUG(4, ("DRS replication modify message:\n%s\n", s));
+ talloc_free(s);
+ }
+
ret = ldb_build_mod_req(&change_req,
- ar->module->ldb,
+ ldb,
ar,
msg,
ar->controls,
ar,
- replmd_replicated_apply_merge_callback,
+ replmd_op_callback,
ar->req);
if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
static int replmd_replicated_apply_next(struct replmd_replicated_request *ar)
{
+ struct ldb_context *ldb;
int ret;
char *tmp_str;
char *filter;
struct ldb_request *search_req;
+ struct ldb_search_options_control *options;
if (ar->index_current >= ar->objs->num_objects) {
- /* done with it, go to the last op */
+ /* done with it, go to next stage */
return replmd_replicated_uptodate_vector(ar);
}
+ ldb = ldb_module_get_ctx(ar->module);
ar->search_msg = NULL;
tmp_str = ldb_binary_encode(ar, ar->objs->objects[ar->index_current].guid_value);
talloc_free(tmp_str);
ret = ldb_build_search_req(&search_req,
- ar->module->ldb,
+ ldb,
ar,
- ar->objs->partition_dn,
+ NULL,
LDB_SCOPE_SUBTREE,
filter,
NULL,
ar,
replmd_replicated_apply_search_callback,
ar->req);
+
+ ret = ldb_request_add_control(search_req, LDB_CONTROL_SHOW_DELETED_OID, true, NULL);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ /* we need to cope with cross-partition links, so search for
+ the GUID over all partitions */
+ options = talloc(search_req, struct ldb_search_options_control);
+ if (options == NULL) {
+ DEBUG(0, (__location__ ": out of memory\n"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
+
+ ret = ldb_request_add_control(search_req,
+ LDB_CONTROL_SEARCH_OPTIONS_OID,
+ true, options);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
if (ret != LDB_SUCCESS) return replmd_replicated_request_error(ar, ret);
return ldb_next_request(ar->module, search_req);
static int replmd_replicated_uptodate_modify_callback(struct ldb_request *req,
struct ldb_reply *ares)
{
+ struct ldb_context *ldb;
struct replmd_replicated_request *ar = talloc_get_type(req->context,
struct replmd_replicated_request);
+ ldb = ldb_module_get_ctx(ar->module);
if (!ares) {
return ldb_module_done(ar->req, NULL, NULL,
}
if (ares->type != LDB_REPLY_DONE) {
- ldb_set_errstring(ar->module->ldb, "Invalid reply type\n!");
+ ldb_set_errstring(ldb, "Invalid reply type\n!");
return ldb_module_done(ar->req, NULL, NULL,
LDB_ERR_OPERATIONS_ERROR);
}
return ldb_module_done(ar->req, NULL, NULL, LDB_SUCCESS);
}
-static int replmd_drsuapi_DsReplicaCursor2_compare(const struct drsuapi_DsReplicaCursor2 *c1,
- const struct drsuapi_DsReplicaCursor2 *c2)
-{
- return GUID_compare(&c1->source_dsa_invocation_id, &c2->source_dsa_invocation_id);
-}
-
static int replmd_replicated_uptodate_modify(struct replmd_replicated_request *ar)
{
+ struct ldb_context *ldb;
struct ldb_request *change_req;
enum ndr_err_code ndr_err;
struct ldb_message *msg;
struct ldb_val *nrf_value = NULL;
struct ldb_message_element *nrf_el = NULL;
uint32_t i,j,ni=0;
- uint64_t seq_num;
bool found = false;
time_t t = time(NULL);
NTTIME now;
int ret;
+ ldb = ldb_module_get_ctx(ar->module);
ruv = ar->objs->uptodateness_vector;
ZERO_STRUCT(ouv);
ouv.version = 2;
unix_to_nt_time(&now, t);
- /*
- * we use the next sequence number for our own highest_usn
- * because we will do a modify request and this will increment
- * our highest_usn
- */
- ret = ldb_sequence_number(ar->module->ldb, LDB_SEQ_NEXT, &seq_num);
- if (ret != LDB_SUCCESS) {
- return replmd_replicated_request_error(ar, ret);
- }
-
/*
* first create the new replUpToDateVector
*/
ouv_value = ldb_msg_find_ldb_val(ar->search_msg, "replUpToDateVector");
if (ouv_value) {
ndr_err = ndr_pull_struct_blob(ouv_value, ar,
- lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")), &ouv,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")), &ouv,
(ndr_pull_flags_fn_t)ndr_pull_replUpToDateVectorBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
}
/* get our invocation_id if we have one already attached to the ldb */
- our_invocation_id = samdb_ntds_invocation_id(ar->module->ldb);
+ our_invocation_id = samdb_ntds_invocation_id(ldb);
/* merge in the source_dsa vector is available */
for (i=0; (ruv && i < ruv->count); i++) {
*/
qsort(nuv.ctr.ctr2.cursors, nuv.ctr.ctr2.count,
sizeof(struct drsuapi_DsReplicaCursor2),
- (comparison_fn_t)replmd_drsuapi_DsReplicaCursor2_compare);
+ (comparison_fn_t)drsuapi_DsReplicaCursor2_compare);
/*
* create the change ldb_message
msg->dn = ar->search_msg->dn;
ndr_err = ndr_push_struct_blob(&nuv_value, msg,
- lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")),
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
&nuv,
(ndr_push_flags_fn_t)ndr_push_replUpToDateVectorBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
trf = talloc(ar, struct repsFromToBlob);
if (!trf) return replmd_replicated_request_werror(ar, WERR_NOMEM);
- ndr_err = ndr_pull_struct_blob(&orf_el->values[i], trf, lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")), trf,
+ ndr_err = ndr_pull_struct_blob(&orf_el->values[i], trf, lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")), trf,
(ndr_pull_flags_fn_t)ndr_pull_repsFromToBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
/* we now fill the value which is already attached to ldb_message */
ndr_err = ndr_push_struct_blob(nrf_value, msg,
- lp_iconv_convenience(ldb_get_opaque(ar->module->ldb, "loadparm")),
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
&nrf,
(ndr_push_flags_fn_t)ndr_push_repsFromToBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
*/
nrf_el->flags = LDB_FLAG_MOD_REPLACE;
+ if (DEBUGLVL(4)) {
+ char *s = ldb_ldif_message_string(ldb, ar, LDB_CHANGETYPE_MODIFY, msg);
+ DEBUG(4, ("DRS replication uptodate modify message:\n%s\n", s));
+ talloc_free(s);
+ }
+
/* prepare the ldb_modify() request */
ret = ldb_build_mod_req(&change_req,
- ar->module->ldb,
+ ldb,
ar,
msg,
ar->controls,
static int replmd_replicated_uptodate_vector(struct replmd_replicated_request *ar)
{
+ struct ldb_context *ldb;
int ret;
static const char *attrs[] = {
"replUpToDateVector",
};
struct ldb_request *search_req;
+ ldb = ldb_module_get_ctx(ar->module);
ar->search_msg = NULL;
ret = ldb_build_search_req(&search_req,
- ar->module->ldb,
+ ldb,
ar,
ar->objs->partition_dn,
LDB_SCOPE_BASE,
return ldb_next_request(ar->module, search_req);
}
+
+
static int replmd_extended_replicated_objects(struct ldb_module *module, struct ldb_request *req)
{
+ struct ldb_context *ldb;
struct dsdb_extended_replicated_objects *objs;
struct replmd_replicated_request *ar;
struct ldb_control **ctrls;
- int ret;
+ int ret, i;
+ struct replmd_private *replmd_private =
+ talloc_get_type(ldb_module_get_private(module), struct replmd_private);
+
+ ldb = ldb_module_get_ctx(module);
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "replmd_extended_replicated_objects\n");
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "replmd_extended_replicated_objects\n");
objs = talloc_get_type(req->op.extended.data, struct dsdb_extended_replicated_objects);
if (!objs) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "replmd_extended_replicated_objects: invalid extended data\n");
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "replmd_extended_replicated_objects: invalid extended data\n");
return LDB_ERR_PROTOCOL_ERROR;
}
if (objs->version != DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "replmd_extended_replicated_objects: extended data invalid version [%u != %u]\n",
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "replmd_extended_replicated_objects: extended data invalid version [%u != %u]\n",
objs->version, DSDB_EXTENDED_REPLICATED_OBJECTS_VERSION);
return LDB_ERR_PROTOCOL_ERROR;
}
if (!ar)
return LDB_ERR_OPERATIONS_ERROR;
+ /* Set the flags to have the replmd_op_callback run over the full set of objects */
+ ar->apply_mode = true;
ar->objs = objs;
- ar->schema = dsdb_get_schema(module->ldb);
+ ar->schema = dsdb_get_schema(ldb);
if (!ar->schema) {
- ldb_debug_set(module->ldb, LDB_DEBUG_FATAL, "replmd_ctx_init: no loaded schema found\n");
+ ldb_debug_set(ldb, LDB_DEBUG_FATAL, "replmd_ctx_init: no loaded schema found\n");
talloc_free(ar);
+ DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
return LDB_ERR_CONSTRAINT_VIOLATION;
}
ar->controls = req->controls;
req->controls = ctrls;
+ DEBUG(4,("linked_attributes_count=%u\n", objs->linked_attributes_count));
+
+ /* save away the linked attributes for the end of the
+ transaction */
+ for (i=0; i<ar->objs->linked_attributes_count; i++) {
+ struct la_entry *la_entry;
+
+ if (replmd_private->la_ctx == NULL) {
+ replmd_private->la_ctx = talloc_new(replmd_private);
+ }
+ la_entry = talloc(replmd_private->la_ctx, struct la_entry);
+ if (la_entry == NULL) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ la_entry->la = talloc(la_entry, struct drsuapi_DsReplicaLinkedAttribute);
+ if (la_entry->la == NULL) {
+ talloc_free(la_entry);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ *la_entry->la = ar->objs->linked_attributes[i];
+
+ /* we need to steal the non-scalars so they stay
+ around until the end of the transaction */
+ talloc_steal(la_entry->la, la_entry->la->identifier);
+ talloc_steal(la_entry->la, la_entry->la->value.blob);
+
+ DLIST_ADD(replmd_private->la_list, la_entry);
+ }
+
return replmd_replicated_apply_next(ar);
}
+/*
+ process one linked attribute structure
+ */
+static int replmd_process_linked_attribute(struct ldb_module *module,
+ struct la_entry *la_entry)
+{
+ struct drsuapi_DsReplicaLinkedAttribute *la = la_entry->la;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct dsdb_schema *schema = dsdb_get_schema(ldb);
+ struct ldb_message *msg;
+ TALLOC_CTX *tmp_ctx = talloc_new(la_entry);
+ int ret;
+ const struct dsdb_attribute *attr;
+ struct dsdb_dn *dsdb_dn;
+ uint64_t seq_num = 0;
+ struct drsuapi_DsReplicaAttribute drs;
+ struct drsuapi_DsAttributeValue val;
+ struct ldb_message_element new_el, *old_el;
+ WERROR status;
+ time_t t = time(NULL);
+ struct ldb_result *res;
+ const char *attrs[2];
+ struct parsed_dn *pdn_list, *pdn;
+ struct GUID guid;
+ NTSTATUS ntstatus;
+ bool active = (la->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)?true:false;
+ const struct GUID *our_invocation_id;
+
+ drs.value_ctr.num_values = 1;
+ drs.value_ctr.values = &val;
+ val.blob = la->value.blob;
+
+/*
+linked_attributes[0]:
+ &objs->linked_attributes[i]: struct drsuapi_DsReplicaLinkedAttribute
+ identifier : *
+ identifier: struct drsuapi_DsReplicaObjectIdentifier
+ __ndr_size : 0x0000003a (58)
+ __ndr_size_sid : 0x00000000 (0)
+ guid : 8e95b6a9-13dd-4158-89db-3220a5be5cc7
+ sid : S-0-0
+ __ndr_size_dn : 0x00000000 (0)
+ dn : ''
+ attid : DRSUAPI_ATTRIBUTE_member (0x1F)
+ value: struct drsuapi_DsAttributeValue
+ __ndr_size : 0x0000007e (126)
+ blob : *
+ blob : DATA_BLOB length=126
+ flags : 0x00000001 (1)
+ 1: DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE
+ originating_add_time : Wed Sep 2 22:20:01 2009 EST
+ meta_data: struct drsuapi_DsReplicaMetaData
+ version : 0x00000015 (21)
+ originating_change_time : Wed Sep 2 23:39:07 2009 EST
+ originating_invocation_id: 794640f3-18cf-40ee-a211-a93992b67a64
+ originating_usn : 0x000000000001e19c (123292)
+
+(for cases where the link is to a normal DN)
+ &target: struct drsuapi_DsReplicaObjectIdentifier3
+ __ndr_size : 0x0000007e (126)
+ __ndr_size_sid : 0x0000001c (28)
+ guid : 7639e594-db75-4086-b0d4-67890ae46031
+ sid : S-1-5-21-2848215498-2472035911-1947525656-19924
+ __ndr_size_dn : 0x00000022 (34)
+ dn : 'CN=UOne,OU=TestOU,DC=vsofs8,DC=com'
+ */
+
+ /* find the attribute being modified */
+ attr = dsdb_attribute_by_attributeID_id(schema, la->attid);
+ if (attr == NULL) {
+ DEBUG(0, (__location__ ": Unable to find attributeID 0x%x\n", la->attid));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ attrs[0] = attr->lDAPDisplayName;
+ attrs[1] = NULL;
+
+ /* get the existing message from the db for the object with
+ this GUID, returning attribute being modified. We will then
+ use this msg as the basis for a modify call */
+ ret = dsdb_module_search(module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE, attrs,
+ DSDB_SEARCH_SEARCH_ALL_PARTITIONS |
+ DSDB_SEARCH_SHOW_DELETED |
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
+ DSDB_SEARCH_REVEAL_INTERNALS,
+ "objectGUID=%s", GUID_string(tmp_ctx, &la->identifier->guid));
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ if (res->count != 1) {
+ ldb_asprintf_errstring(ldb, "DRS linked attribute for GUID %s - DN not found",
+ GUID_string(tmp_ctx, &la->identifier->guid));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_NO_SUCH_OBJECT;
+ }
+ msg = res->msgs[0];
+
+ if (msg->num_elements == 0) {
+ ret = ldb_msg_add_empty(msg, attr->lDAPDisplayName, LDB_FLAG_MOD_REPLACE, &old_el);
+ if (ret != LDB_SUCCESS) {
+ ldb_module_oom(module);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ } else {
+ old_el = &msg->elements[0];
+ old_el->flags = LDB_FLAG_MOD_REPLACE;
+ }
+
+ /* parse the existing links */
+ ret = get_parsed_dns(module, tmp_ctx, old_el, &pdn_list, attr->syntax->ldap_oid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /* get our invocationId */
+ our_invocation_id = samdb_ntds_invocation_id(ldb);
+ if (!our_invocation_id) {
+ ldb_debug_set(ldb, LDB_DEBUG_ERROR, __location__ ": unable to find invocationId\n");
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = replmd_check_upgrade_links(pdn_list, old_el->num_values, our_invocation_id);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ status = attr->syntax->drsuapi_to_ldb(ldb, schema, attr, &drs, tmp_ctx, &new_el);
+ if (!W_ERROR_IS_OK(status)) {
+ ldb_asprintf_errstring(ldb, "Failed to parsed linked attribute blob for %s on %s\n",
+ old_el->name, ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (new_el.num_values != 1) {
+ ldb_asprintf_errstring(ldb, "Failed to find value in linked attribute blob for %s on %s\n",
+ old_el->name, ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, &new_el.values[0], attr->syntax->ldap_oid);
+ if (!dsdb_dn) {
+ ldb_asprintf_errstring(ldb, "Failed to parse DN in linked attribute blob for %s on %s\n",
+ old_el->name, ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ntstatus = dsdb_get_extended_dn_guid(dsdb_dn->dn, &guid, "GUID");
+ if (!NT_STATUS_IS_OK(ntstatus)) {
+ ldb_asprintf_errstring(ldb, "Failed to find GUID in linked attribute blob for %s on %s\n",
+ old_el->name, ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* see if this link already exists */
+ pdn = parsed_dn_find(pdn_list, old_el->num_values, &guid);
+ if (pdn != NULL) {
+ /* see if this update is newer than what we have already */
+ struct GUID invocation_id = GUID_zero();
+ uint32_t version = 0;
+ NTTIME change_time = 0;
+ bool was_active = ldb_dn_get_extended_component(pdn->dsdb_dn->dn, "DELETED") == NULL;
+
+ dsdb_get_extended_dn_guid(pdn->dsdb_dn->dn, &invocation_id, "RMD_INVOCID");
+ dsdb_get_extended_dn_uint32(pdn->dsdb_dn->dn, &version, "RMD_VERSION");
+ dsdb_get_extended_dn_nttime(pdn->dsdb_dn->dn, &change_time, "RMD_CHANGETIME");
+
+ if (!replmd_update_is_newer(&invocation_id,
+ &la->meta_data.originating_invocation_id,
+ version,
+ la->meta_data.version,
+ change_time,
+ la->meta_data.originating_change_time)) {
+ DEBUG(1,("Discarding older DRS linked attribute update to %s on %s from %s\n",
+ old_el->name, ldb_dn_get_linearized(msg->dn),
+ GUID_string(tmp_ctx, &la->meta_data.originating_invocation_id)));
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
+ }
+
+ /* get a seq_num for this change */
+ ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &seq_num);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ if (was_active) {
+ /* remove the existing backlink */
+ ret = replmd_add_backlink(module, schema, &la->identifier->guid, &guid, false, attr, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ ret = replmd_update_la_val(tmp_ctx, pdn->v, dsdb_dn, pdn->dsdb_dn,
+ &la->meta_data.originating_invocation_id,
+ la->meta_data.originating_usn, seq_num,
+ la->meta_data.originating_change_time,
+ !active);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ if (active) {
+ /* add the new backlink */
+ ret = replmd_add_backlink(module, schema, &la->identifier->guid, &guid, true, attr, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+ } else {
+ /* get a seq_num for this change */
+ ret = ldb_sequence_number(ldb, LDB_SEQ_NEXT, &seq_num);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ old_el->values = talloc_realloc(msg->elements, old_el->values,
+ struct ldb_val, old_el->num_values+1);
+ if (!old_el->values) {
+ ldb_module_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ old_el->num_values++;
+
+ ret = replmd_build_la_val(tmp_ctx, &old_el->values[old_el->num_values-1], dsdb_dn,
+ &la->meta_data.originating_invocation_id,
+ la->meta_data.originating_usn, seq_num,
+ la->meta_data.originating_change_time,
+ (la->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)?false:true);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ if (active) {
+ ret = replmd_add_backlink(module, schema, &la->identifier->guid, &guid,
+ true, attr, false);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+ }
+
+ /* we only change whenChanged and uSNChanged if the seq_num
+ has changed */
+ if (add_time_element(msg, "whenChanged", t) != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (add_uint64_element(msg, "uSNChanged", seq_num) != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = dsdb_module_modify(module, msg, 0);
+ if (ret != LDB_SUCCESS) {
+ ldb_debug(ldb, LDB_DEBUG_WARNING, "Failed to apply linked attribute change '%s' %s\n",
+ ldb_errstring(ldb),
+ ldb_ldif_message_string(ldb, tmp_ctx, LDB_CHANGETYPE_MODIFY, msg));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ talloc_free(tmp_ctx);
+
+ return ret;
+}
+
static int replmd_extended(struct ldb_module *module, struct ldb_request *req)
{
if (strcmp(req->op.extended.oid, DSDB_EXTENDED_REPLICATED_OBJECTS_OID) == 0) {
return ldb_next_request(module, req);
}
+
+/*
+ we hook into the transaction operations to allow us to
+ perform the linked attribute updates at the end of the whole
+ transaction. This allows a forward linked attribute to be created
+ before the object is created. During a vampire, w2k8 sends us linked
+ attributes before the objects they are part of.
+ */
+static int replmd_start_transaction(struct ldb_module *module)
+{
+ /* create our private structure for this transaction */
+ struct replmd_private *replmd_private = talloc_get_type(ldb_module_get_private(module),
+ struct replmd_private);
+ replmd_txn_cleanup(replmd_private);
+
+ /* free any leftover mod_usn records from cancelled
+ transactions */
+ while (replmd_private->ncs) {
+ struct nc_entry *e = replmd_private->ncs;
+ DLIST_REMOVE(replmd_private->ncs, e);
+ talloc_free(e);
+ }
+
+ return ldb_next_start_trans(module);
+}
+
+/*
+ on prepare commit we loop over our queued la_context structures and
+ apply each of them
+ */
+static int replmd_prepare_commit(struct ldb_module *module)
+{
+ struct replmd_private *replmd_private =
+ talloc_get_type(ldb_module_get_private(module), struct replmd_private);
+ struct la_entry *la, *prev;
+ struct la_backlink *bl;
+ int ret;
+
+ /* walk the list backwards, to do the first entry first, as we
+ * added the entries with DLIST_ADD() which puts them at the
+ * start of the list */
+ for (la = replmd_private->la_list; la && la->next; la=la->next) ;
+
+ for (; la; la=prev) {
+ prev = la->prev;
+ DLIST_REMOVE(replmd_private->la_list, la);
+ ret = replmd_process_linked_attribute(module, la);
+ if (ret != LDB_SUCCESS) {
+ replmd_txn_cleanup(replmd_private);
+ return ret;
+ }
+ }
+
+ /* process our backlink list, creating and deleting backlinks
+ as necessary */
+ for (bl=replmd_private->la_backlinks; bl; bl=bl->next) {
+ ret = replmd_process_backlink(module, bl);
+ if (ret != LDB_SUCCESS) {
+ replmd_txn_cleanup(replmd_private);
+ return ret;
+ }
+ }
+
+ replmd_txn_cleanup(replmd_private);
+
+ /* possibly change @REPLCHANGED */
+ ret = replmd_notify_store(module);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ return ldb_next_prepare_commit(module);
+}
+
+static int replmd_del_transaction(struct ldb_module *module)
+{
+ struct replmd_private *replmd_private =
+ talloc_get_type(ldb_module_get_private(module), struct replmd_private);
+ replmd_txn_cleanup(replmd_private);
+
+ return ldb_next_del_trans(module);
+}
+
+
_PUBLIC_ const struct ldb_module_ops ldb_repl_meta_data_module_ops = {
.name = "repl_meta_data",
- .add = replmd_add,
- .modify = replmd_modify,
- .extended = replmd_extended,
+ .init_context = replmd_init,
+ .add = replmd_add,
+ .modify = replmd_modify,
+ .rename = replmd_rename,
+ .del = replmd_delete,
+ .extended = replmd_extended,
+ .start_transaction = replmd_start_transaction,
+ .prepare_commit = replmd_prepare_commit,
+ .del_transaction = replmd_del_transaction,
};
git.samba.org / nivanova / samba-autobuild / .git / blobdiff