-/*
+/*
ldb database library
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2007
Copyright (C) Simo Sorce <idra@samba.org> 2008
+ Copyright (C) Matthieu Patou <mat@matws.net> 2011
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 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 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/>.
*/
enum la_op {LA_OP_ADD, LA_OP_DEL} op;
struct GUID guid;
char *name;
- char *value;
};
struct replace_context {
const struct dsdb_schema *schema;
struct ldb_module *module;
struct ldb_request *req;
- struct ldb_dn *add_dn;
- struct ldb_dn *del_dn;
+ struct ldb_dn *mod_dn;
struct replace_context *rc;
struct la_op_store *ops;
struct ldb_extended *op_response;
struct ldb_control **op_controls;
+ /*
+ * For futur use
+ * will tell which GC to use for resolving links
+ */
+ char *gc_dns_name;
};
+
+static int handle_verify_name_control(TALLOC_CTX *ctx, struct ldb_context *ldb,
+ struct ldb_control *control, struct la_context *ac)
+{
+ /*
+ * If we are a GC let's remove the control,
+ * if there is a specified GC check that is us.
+ */
+ struct ldb_verify_name_control *lvnc = (struct ldb_verify_name_control *)control->data;
+ if (samdb_is_gc(ldb)) {
+ /* Because we can't easily talloc a struct ldb_dn*/
+ struct ldb_dn **dn = talloc_array(ctx, struct ldb_dn *, 1);
+ int ret = samdb_server_reference_dn(ldb, ctx, dn);
+ const char *dns;
+
+ if (ret != LDB_SUCCESS) {
+ return ldb_operr(ldb);
+ }
+
+ dns = samdb_dn_to_dnshostname(ldb, ctx, *dn);
+ if (!dns) {
+ return ldb_operr(ldb);
+ }
+ if (!lvnc->gc || strcasecmp(dns, lvnc->gc) == 0) {
+ if (!ldb_save_controls(control, ctx, NULL)) {
+ return ldb_operr(ldb);
+ }
+ } else {
+ control->critical = true;
+ }
+ talloc_free(dn);
+ } else {
+ /* For the moment we don't remove the control is this case in order
+ * to fail the request. It's better than having the client thinking
+ * that we honnor its control.
+ * Hopefully only a very small set of usecase should hit this problem.
+ */
+ if (lvnc->gc) {
+ ac->gc_dns_name = talloc_strdup(ac, lvnc->gc);
+ }
+ control->critical = true;
+ }
+
+ return LDB_SUCCESS;
+}
+
static struct la_context *linked_attributes_init(struct ldb_module *module,
struct ldb_request *req)
{
/*
turn a DN into a GUID
*/
-static int la_guid_from_dn(struct la_context *ac, struct ldb_dn *dn, struct GUID *guid)
+static int la_guid_from_dn(struct ldb_module *module,
+ struct ldb_request *parent,
+ struct ldb_dn *dn, struct GUID *guid)
{
- int ret;
NTSTATUS status;
+ int ret;
status = dsdb_get_extended_dn_guid(dn, guid, "GUID");
if (NT_STATUS_IS_OK(status)) {
if (!NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
DEBUG(4,(__location__ ": Unable to parse GUID for dn %s\n",
ldb_dn_get_linearized(dn)));
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_operr(ldb_module_get_ctx(module));
}
- ret = dsdb_find_guid_by_dn(ldb_module_get_ctx(ac->module), dn, guid);
+ ret = dsdb_module_guid_by_dn(module, dn, guid, parent);
if (ret != LDB_SUCCESS) {
DEBUG(4,(__location__ ": Failed to find GUID for dn %s\n",
ldb_dn_get_linearized(dn)));
op_dn = ldb_dn_from_ldb_val(ac, ldb, dn);
if (!op_dn) {
- ldb_asprintf_errstring(ldb,
+ ldb_asprintf_errstring(ldb,
"could not parse attribute as a DN");
return LDB_ERR_INVALID_DN_SYNTAX;
}
os = talloc_zero(ac, struct la_op_store);
if (!os) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
os->op = op;
- ret = la_guid_from_dn(ac, op_dn, &os->guid);
+ ret = la_guid_from_dn(ac->module, ac->req, op_dn, &os->guid);
talloc_free(op_dn);
if (ret == LDB_ERR_NO_SUCH_OBJECT && ac->req->operation == LDB_DELETE) {
/* we are deleting an object, and we've found it has a
os->name = talloc_strdup(os, name);
if (!os->name) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
/* Do deletes before adds */
struct la_context *ac;
const char *attr_name;
struct ldb_control *ctrl;
+ unsigned int i, j;
+ struct ldb_control *control;
int ret;
- int i, j;
ldb = ldb_module_get_ctx(module);
return ldb_next_request(module, req);
}
+ ac = linked_attributes_init(module, req);
+ if (!ac) {
+ return ldb_operr(ldb);
+ }
+
+ control = ldb_request_get_control(req, LDB_CONTROL_VERIFY_NAME_OID);
+ if (control != NULL && control->data != NULL) {
+ ret = handle_verify_name_control(req, ldb, control, ac);
+ if (ret != LDB_SUCCESS) {
+ return ldb_operr(ldb);
+ }
+ }
+
if (!(ctrl = ldb_request_get_control(req, DSDB_CONTROL_APPLY_LINKS))) {
/* don't do anything special for linked attributes, repl_meta_data has done it */
+ talloc_free(ac);
return ldb_next_request(module, req);
}
ctrl->critical = false;
- ac = linked_attributes_init(module, req);
- if (!ac) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
if (!ac->schema) {
/* without schema, this doesn't make any sense */
talloc_free(ac);
return ldb_next_request(module, req);
}
+
/* Need to ensure we only have forward links being specified */
for (i=0; i < req->op.add.message->num_elements; i++) {
const struct ldb_message_element *el = &req->op.add.message->elements[i];
const struct dsdb_attribute *schema_attr
= dsdb_attribute_by_lDAPDisplayName(ac->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;
+ ldb_asprintf_errstring(ldb,
+ "%s: attribute %s is not a valid attribute in schema",
+ __FUNCTION__,
+ el->name);
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
- /* We have a valid attribute, now find out if it is a forward link */
- if ((schema_attr->linkID == 0)) {
+
+ /* this could be a link with no partner, in which case
+ there is no special work to do */
+ if (schema_attr->linkID == 0) {
continue;
}
- if ((schema_attr->linkID & 1) == 1) {
- unsigned int functional_level;
-
- functional_level = dsdb_functional_level(ldb);
- SMB_ASSERT(functional_level > DS_DOMAIN_FUNCTION_2000);
- }
-
+ /* this part of the code should only be handling forward links */
+ SMB_ASSERT((schema_attr->linkID & 1) == 0);
+
/* Even link IDs are for the originating attribute */
- target_attr = dsdb_attribute_by_linkID(ac->schema, schema_attr->linkID + 1);
+ target_attr = dsdb_attribute_by_linkID(ac->schema, schema_attr->linkID ^ 1);
if (!target_attr) {
/*
* windows 2003 has a broken schema where
struct replace_context *rc;
struct la_context *ac;
const char *attr_name;
- int i, j;
+ unsigned int i, j;
int ret = LDB_SUCCESS;
ac = talloc_get_type(req->context, struct la_context);
case LDB_REPLY_ENTRY:
if (ldb_dn_compare(ares->message->dn, ac->req->op.mod.message->dn) != 0) {
- ldb_asprintf_errstring(ldb,
- "linked_attributes: %s is not the DN we were looking for",
+ ldb_asprintf_errstring(ldb,
+ "linked_attributes: %s is not the DN we were looking for",
ldb_dn_get_linearized(ares->message->dn));
/* Guh? We only asked for this DN */
talloc_free(ares);
LDB_ERR_OPERATIONS_ERROR);
}
- ac->add_dn = ac->del_dn = talloc_steal(ac, ares->message->dn);
+ ac->mod_dn = talloc_steal(ac, ares->message->dn);
/* We don't populate 'rc' for ADD - it can't be deleting elements anyway */
for (i = 0; rc && i < rc->num_elements; i++) {
schema_attr = dsdb_attribute_by_lDAPDisplayName(ac->schema, rc->el[i].name);
if (!schema_attr) {
ldb_asprintf_errstring(ldb,
- "attribute %s is not a valid attribute in schema",
+ "%s: attribute %s is not a valid attribute in schema",
+ __FUNCTION__,
rc->el[i].name);
talloc_free(ares);
return ldb_module_done(ac->req, NULL, NULL,
continue;
}
- target_attr = dsdb_attribute_by_linkID(ac->schema, schema_attr->linkID + 1);
+ target_attr = dsdb_attribute_by_linkID(ac->schema, schema_attr->linkID ^ 1);
if (!target_attr) {
/*
* windows 2003 has a broken schema where
/* Determine the effect of the modification */
/* Apply the modify to the linked entry */
+ struct ldb_control *control;
struct ldb_context *ldb;
- int i, j;
+ unsigned int i, j;
struct la_context *ac;
struct ldb_request *search_req;
const char **attrs;
struct ldb_control *ctrl;
-
int ret;
ldb = ldb_module_get_ctx(module);
return ldb_next_request(module, req);
}
+ ac = linked_attributes_init(module, req);
+ if (!ac) {
+ return ldb_operr(ldb);
+ }
+
+ control = ldb_request_get_control(req, LDB_CONTROL_VERIFY_NAME_OID);
+ if (control != NULL && control->data != NULL) {
+ ret = handle_verify_name_control(req, ldb, control, ac);
+ if (ret != LDB_SUCCESS) {
+ return ldb_operr(ldb);
+ }
+ }
+
if (!(ctrl = ldb_request_get_control(req, DSDB_CONTROL_APPLY_LINKS))) {
/* don't do anything special for linked attributes, repl_meta_data has done it */
+ talloc_free(ac);
return ldb_next_request(module, req);
}
ctrl->critical = false;
- ac = linked_attributes_init(module, req);
- if (!ac) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
if (!ac->schema) {
/* without schema, this doesn't make any sense */
return ldb_next_request(module, req);
ac->rc = talloc_zero(ac, struct replace_context);
if (!ac->rc) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
for (i=0; i < req->op.mod.message->num_elements; i++) {
const struct dsdb_attribute *schema_attr
= dsdb_attribute_by_lDAPDisplayName(ac->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;
+ ldb_asprintf_errstring(ldb,
+ "%s: attribute %s is not a valid attribute in schema",
+ __FUNCTION__,
+ el->name);
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
/* We have a valid attribute, now find out if it is a forward link
(Even link IDs are for the originating attribute) */
continue;
}
- if ((schema_attr->linkID & 1) == 1) {
- unsigned int functional_level;
-
- functional_level = dsdb_functional_level(ldb);
- SMB_ASSERT(functional_level > DS_DOMAIN_FUNCTION_2000);
- }
+ /* this part of the code should only be handling forward links */
+ SMB_ASSERT((schema_attr->linkID & 1) == 0);
+
/* Now find the target attribute */
- target_attr = dsdb_attribute_by_linkID(ac->schema, schema_attr->linkID + 1);
+ target_attr = dsdb_attribute_by_linkID(ac->schema, schema_attr->linkID ^ 1);
if (!target_attr) {
/*
* windows 2003 has a broken schema where
}
attr_name = target_attr->lDAPDisplayName;
-
+
switch (el->flags & LDB_FLAG_MOD_MASK) {
case LDB_FLAG_MOD_REPLACE:
/* treat as just a normal add the delete part is handled by the callback */
struct ldb_message_element,
ac->rc->num_elements +1);
if (!search_el) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
ac->rc->el = search_el;
ac->rc->num_elements++;
}
}
-
+
if (ac->ops || ac->rc->el) {
/* both replace and delete without values are handled in the callback
* after the search on the entry to be modified is performed */
-
+
attrs = talloc_array(ac->rc, const char *, ac->rc->num_elements + 1);
if (!attrs) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
for (i = 0; ac->rc && i < ac->rc->num_elements; i++) {
attrs[i] = ac->rc->el[i].name;
}
attrs[i] = NULL;
-
+
/* The callback does all the hard work here */
ret = ldb_build_search_req(&search_req, ldb, ac,
req->op.mod.message->dn,
NULL,
ac, la_mod_search_callback,
req);
+ LDB_REQ_SET_LOCATION(search_req);
/* We need to figure out our own extended DN, to fill in as the backlink target */
if (ret == LDB_SUCCESS) {
- ret = ldb_request_add_control(search_req,
- LDB_CONTROL_EXTENDED_DN_OID,
- false, NULL);
+ ret = dsdb_request_add_controls(search_req,
+ DSDB_SEARCH_SHOW_DELETED |
+ DSDB_SEARCH_SHOW_EXTENDED_DN);
}
if (ret == LDB_SUCCESS) {
talloc_steal(search_req, attrs);
-
+
ret = ldb_next_request(module, search_req);
}
}
static int linked_attributes_fix_links(struct ldb_module *module,
+ struct GUID self_guid,
struct ldb_dn *old_dn, struct ldb_dn *new_dn,
struct ldb_message_element *el, struct dsdb_schema *schema,
- const struct dsdb_attribute *schema_attr)
+ const struct dsdb_attribute *schema_attr,
+ struct ldb_request *parent)
{
- unsigned int i;
+ unsigned int i, j;
TALLOC_CTX *tmp_ctx = talloc_new(module);
struct ldb_context *ldb = ldb_module_get_ctx(module);
const struct dsdb_attribute *target;
const char *attrs[2];
+ int ret;
target = dsdb_attribute_by_linkID(schema, schema_attr->linkID ^ 1);
if (target == NULL) {
for (i=0; i<el->num_values; i++) {
struct dsdb_dn *dsdb_dn;
- unsigned int j;
- int ret;
struct ldb_result *res;
struct ldb_message *msg;
struct ldb_message_element *el2;
+ struct GUID link_guid;
dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, &el->values[i], schema_attr->syntax->ldap_oid);
if (dsdb_dn == NULL) {
return LDB_ERR_INVALID_DN_SYNTAX;
}
- ret = dsdb_module_search_dn(module, tmp_ctx, &res, dsdb_dn->dn,
- attrs,
- DSDB_SEARCH_SHOW_DELETED |
- DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
- DSDB_SEARCH_REVEAL_INTERNALS);
+ ret = la_guid_from_dn(module, parent, dsdb_dn->dn, &link_guid);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - GUID not found - %s",
+ el->name, target->lDAPDisplayName,
+ ldb_dn_get_linearized(old_dn),
+ ldb_dn_get_linearized(dsdb_dn->dn),
+ ldb_errstring(ldb));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /*
+ * 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_FLAG_NEXT_MODULE |
+ DSDB_SEARCH_SEARCH_ALL_PARTITIONS |
+ DSDB_SEARCH_SHOW_RECYCLED |
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT |
+ DSDB_SEARCH_REVEAL_INTERNALS,
+ parent,
+ "objectGUID=%s", GUID_string(tmp_ctx, &link_guid));
if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - remote not found - %s",
+ ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - target GUID %s not found - %s",
el->name, target->lDAPDisplayName,
ldb_dn_get_linearized(old_dn),
ldb_dn_get_linearized(dsdb_dn->dn),
+ GUID_string(tmp_ctx, &link_guid),
ldb_errstring(ldb));
talloc_free(tmp_ctx);
return ret;
}
msg = res->msgs[0];
- if (msg->num_elements != 1 ||
- ldb_attr_cmp(msg->elements[0].name, target->lDAPDisplayName) != 0) {
- ldb_set_errstring(ldb, "Bad msg elements in linked_attributes_fix_links");
+ if (msg->num_elements == 0) {
+ /* Forward link without backlink remaining - nothing to do here */
+ continue;
+ } else if (msg->num_elements != 1) {
+ ldb_asprintf_errstring(ldb, "Bad msg elements - got %u elements, expected one element to be returned in linked_attributes_fix_links for %s",
+ msg->num_elements, ldb_dn_get_linearized(msg->dn));
+ talloc_free(tmp_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ if (ldb_attr_cmp(msg->elements[0].name, target->lDAPDisplayName) != 0) {
+ ldb_asprintf_errstring(ldb, "Bad returned attribute in linked_attributes_fix_links: got %s, expected %s for %s", msg->elements[0].name, target->lDAPDisplayName, ldb_dn_get_linearized(msg->dn));
talloc_free(tmp_ctx);
return LDB_ERR_OPERATIONS_ERROR;
}
/* find our DN in the values */
for (j=0; j<el2->num_values; j++) {
struct dsdb_dn *dsdb_dn2;
+ struct GUID link_guid;
+
dsdb_dn2 = dsdb_dn_parse(msg, ldb, &el2->values[j], target->syntax->ldap_oid);
if (dsdb_dn2 == NULL) {
talloc_free(tmp_ctx);
return LDB_ERR_INVALID_DN_SYNTAX;
}
- if (ldb_dn_compare(old_dn, dsdb_dn2->dn) != 0) {
+
+ ret = la_guid_from_dn(module, parent, dsdb_dn2->dn, &link_guid);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ /*
+ * By comparing using the GUID we ensure that
+ * even if somehow the name has got out of
+ * sync, this rename will fix it.
+ *
+ * If somehow we don't have a GUID on the DN
+ * in the DB, the la_guid_from_dn call will be
+ * more costly, but still give us a GUID.
+ * dbcheck will fix this if run.
+ */
+ if (!GUID_equal(&self_guid, &link_guid)) {
continue;
}
+
ret = ldb_dn_update_components(dsdb_dn2->dn, new_dn);
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
}
- ret = dsdb_module_modify(module, msg, DSDB_MODIFY_RELAX);
+ /* we may be putting multiple values in an attribute -
+ disable checking for this attribute */
+ el2->flags |= LDB_FLAG_INTERNAL_DISABLE_SINGLE_VALUE_CHECK;
+
+ ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE, parent);
if (ret != LDB_SUCCESS) {
ldb_asprintf_errstring(ldb, "Linked attribute %s->%s between %s and %s - update failed - %s",
el->name, target->lDAPDisplayName,
struct ldb_result *res;
struct ldb_message *msg;
unsigned int i;
- int ret;
struct ldb_context *ldb = ldb_module_get_ctx(module);
struct dsdb_schema *schema;
+ int ret;
+ struct GUID guid;
+
/*
- load the current msg
- find any linked attributes
- modify the target linked attributes with the new DN
*/
ret = dsdb_module_search_dn(module, req, &res, req->op.rename.olddn,
- NULL, DSDB_SEARCH_SHOW_DELETED);
+ NULL,
+ DSDB_FLAG_NEXT_MODULE |
+ DSDB_SEARCH_SHOW_EXTENDED_DN |
+ DSDB_SEARCH_SHOW_RECYCLED, req);
if (ret != LDB_SUCCESS) {
return ret;
}
schema = dsdb_get_schema(ldb, res);
if (!schema) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
msg = res->msgs[0];
+ ret = la_guid_from_dn(module, req, msg->dn, &guid);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
for (i=0; i<msg->num_elements; i++) {
struct ldb_message_element *el = &msg->elements[i];
const struct dsdb_attribute *schema_attr
if (!schema_attr || schema_attr->linkID == 0) {
continue;
}
- ret = linked_attributes_fix_links(module, msg->dn, req->op.rename.newdn, el,
- schema, schema_attr);
+ ret = linked_attributes_fix_links(module, guid, msg->dn, req->op.rename.newdn, el,
+ schema, schema_attr, req);
if (ret != LDB_SUCCESS) {
talloc_free(res);
return ret;
structure */
static int la_queue_mod_request(struct la_context *ac)
{
- struct la_private *la_private =
+ struct la_private *la_private =
talloc_get_type(ldb_module_get_private(ac->module), struct la_private);
if (la_private == NULL) {
ldb_debug(ldb_module_get_ctx(ac->module), LDB_DEBUG_ERROR, __location__ ": No la_private transaction setup\n");
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_operr(ldb_module_get_ctx(ac->module));
}
talloc_steal(la_private, ac);
/* Having done the original operation, then try to fix up all the linked attributes for modify and delete */
static int la_mod_del_callback(struct ldb_request *req, struct ldb_reply *ares)
{
- int ret;
struct la_context *ac;
struct ldb_context *ldb;
+ int ret;
ac = talloc_get_type(req->context, struct la_context);
ldb = ldb_module_get_ctx(ac->module);
return ldb_module_done(ac->req, NULL, NULL,
LDB_ERR_OPERATIONS_ERROR);
}
-
+
ac->op_controls = talloc_steal(ac, ares->controls);
ac->op_response = talloc_steal(ac, ares->response);
/* If we have modfies to make, this is the time to do them for modify and delete */
ret = la_queue_mod_request(ac);
-
+
if (ret != LDB_SUCCESS) {
return ldb_module_done(ac->req, NULL, NULL, ret);
}
*/
static int la_add_callback(struct ldb_request *req, struct ldb_reply *ares)
{
- int ret;
struct la_context *ac;
struct ldb_context *ldb;
+ int ret;
ac = talloc_get_type(req->context, struct la_context);
ldb = ldb_module_get_ctx(ac->module);
return ldb_module_done(ac->req, NULL, NULL,
LDB_ERR_OPERATIONS_ERROR);
}
-
+
if (ac->ops) {
struct ldb_request *search_req;
static const char *attrs[] = { NULL };
-
+
/* The callback does all the hard work here - we need
* the objectGUID and SID of the added record */
ret = ldb_build_search_req(&search_req, ldb, ac,
NULL,
ac, la_mod_search_callback,
ac->req);
-
+ LDB_REQ_SET_LOCATION(search_req);
+
if (ret == LDB_SUCCESS) {
- ret = ldb_request_add_control(search_req,
- LDB_CONTROL_EXTENDED_DN_OID,
- false, NULL);
+ ret = dsdb_request_add_controls(search_req,
+ DSDB_SEARCH_SHOW_DELETED |
+ DSDB_SEARCH_SHOW_EXTENDED_DN);
}
if (ret != LDB_SUCCESS) {
return ldb_module_done(ac->req, NULL, NULL,
ac->op_response = talloc_steal(ac, ares->response);
return ldb_next_request(ac->module, search_req);
-
+
} else {
return ldb_module_done(ac->req, ares->controls,
ares->response, ares->error);
static int la_down_req(struct la_context *ac)
{
struct ldb_request *down_req;
- int ret;
struct ldb_context *ldb;
+ int ret;
ldb = ldb_module_get_ctx(ac->module);
ac->req->controls,
ac, la_add_callback,
ac->req);
+ LDB_REQ_SET_LOCATION(down_req);
break;
case LDB_MODIFY:
ret = ldb_build_mod_req(&down_req, ldb, ac,
ac->req->controls,
ac, la_mod_del_callback,
ac->req);
+ LDB_REQ_SET_LOCATION(down_req);
break;
default:
ret = LDB_ERR_OPERATIONS_ERROR;
use the GUID part of an extended DN to find the target DN, in case
it has moved
*/
-static int la_find_dn_target(struct ldb_module *module, struct la_context *ac,
+static int la_find_dn_target(struct ldb_module *module, struct la_context *ac,
struct GUID *guid, struct ldb_dn **dn)
{
- return dsdb_find_dn_by_guid(ldb_module_get_ctx(ac->module), ac, guid, dn);
+ return dsdb_module_dn_by_guid(ac->module, ac, guid, dn, ac->req);
}
/* apply one la_context op change */
struct ldb_context *ldb;
int ret;
+ if (ac->mod_dn == NULL) {
+ /* we didn't find the DN that we searched for */
+ return LDB_SUCCESS;
+ }
+
ldb = ldb_module_get_ctx(ac->module);
/* Create the modify request */
new_msg = ldb_msg_new(ac);
if (!new_msg) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
ret = la_find_dn_target(module, ac, &op->guid, &new_msg->dn);
}
ret_el->values = talloc_array(new_msg, struct ldb_val, 1);
if (!ret_el->values) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
ret_el->num_values = 1;
- if (op->op == LA_OP_ADD) {
- ret_el->values[0] = data_blob_string_const(ldb_dn_get_extended_linearized(new_msg, ac->add_dn, 1));
- } else {
- ret_el->values[0] = data_blob_string_const(ldb_dn_get_extended_linearized(new_msg, ac->del_dn, 1));
- }
+ ret_el->values[0] = data_blob_string_const(ldb_dn_get_extended_linearized(new_msg, ac->mod_dn, 1));
+
+ /* a backlink should never be single valued. Unfortunately the
+ exchange schema has a attribute
+ msExchBridgeheadedLocalConnectorsDNBL which is single
+ valued and a backlink. We need to cope with that by
+ ignoring the single value flag */
+ ret_el->flags |= LDB_FLAG_INTERNAL_DISABLE_SINGLE_VALUE_CHECK;
#if 0
ldb_debug(ldb, LDB_DEBUG_WARNING,
- "link on %s %s: %s %s\n",
- ldb_dn_get_linearized(new_msg->dn), ret_el->name,
+ "link on %s %s: %s %s\n",
+ ldb_dn_get_linearized(new_msg->dn), ret_el->name,
ret_el->values[0].data, ac->ops->op == LA_OP_ADD ? "added" : "deleted");
-#endif
+#endif
if (DEBUGLVL(4)) {
DEBUG(4,("Applying linked attribute change:\n%s\n",
ldb_ldif_message_string(ldb, op, LDB_CHANGETYPE_MODIFY, new_msg)));
}
- ret = dsdb_module_modify(module, new_msg, 0);
+ ret = dsdb_module_modify(module, new_msg, DSDB_FLAG_NEXT_MODULE, ac->req);
if (ret != LDB_SUCCESS) {
- ldb_debug(ldb, LDB_DEBUG_WARNING, "Failed to apply linked attribute change '%s'\n%s\n",
+ ldb_debug(ldb, LDB_DEBUG_WARNING, __location__ ": failed to apply linked attribute change '%s'\n%s\n",
ldb_errstring(ldb),
ldb_ldif_message_string(ldb, op, LDB_CHANGETYPE_MODIFY, new_msg));
}
/*
- we hook into the transaction operations to allow us to
+ 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 target is created, as long as the target is created
talloc_free(la_private);
la_private = talloc(module, struct la_private);
if (la_private == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb_module_get_ctx(module));
}
la_private->la_list = NULL;
ldb_module_set_private(module, la_private);
*/
static int linked_attributes_prepare_commit(struct ldb_module *module)
{
- struct la_private *la_private =
+ struct la_private *la_private =
talloc_get_type(ldb_module_get_private(module), struct la_private);
struct la_context *ac;
/* 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 (ac = la_private->la_list; ac && ac->next; ac=ac->next) ;
- for (; ac; ac=ac->prev) {
+ /* Start at the end of the list - so we can start
+ * there, but ensure we don't create a loop by NULLing
+ * it out in the first element */
+ ac = DLIST_TAIL(la_private->la_list);
+
+ for (; ac; ac=DLIST_PREV(ac)) {
int ret;
ac->req = NULL;
ret = la_do_mod_request(module, ac);
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed mod request ret=%d\n", ret));
talloc_free(la_private);
- ldb_module_set_private(module, NULL);
+ ldb_module_set_private(module, NULL);
return ret;
}
}
talloc_free(la_private);
- ldb_module_set_private(module, NULL);
+ ldb_module_set_private(module, NULL);
return ldb_next_prepare_commit(module);
}
static int linked_attributes_del_transaction(struct ldb_module *module)
{
- struct la_private *la_private =
+ struct la_private *la_private =
talloc_get_type(ldb_module_get_private(module), struct la_private);
talloc_free(la_private);
ldb_module_set_private(module, NULL);
return ldb_next_del_trans(module);
}
+static int linked_attributes_ldb_init(struct ldb_module *module)
+{
+ int ret;
-_PUBLIC_ const struct ldb_module_ops ldb_linked_attributes_module_ops = {
+ ret = ldb_mod_register_control(module, LDB_CONTROL_VERIFY_NAME_OID);
+ if (ret != LDB_SUCCESS) {
+ ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
+ "verify_name: Unable to register control with rootdse!\n");
+ return ldb_operr(ldb_module_get_ctx(module));
+ }
+
+ return ldb_next_init(module);
+}
+
+
+static const struct ldb_module_ops ldb_linked_attributes_module_ops = {
.name = "linked_attributes",
.add = linked_attributes_add,
.modify = linked_attributes_modify,
.rename = linked_attributes_rename,
+ .init_context = linked_attributes_ldb_init,
.start_transaction = linked_attributes_start_transaction,
.prepare_commit = linked_attributes_prepare_commit,
.del_transaction = linked_attributes_del_transaction,
};
+
+int ldb_linked_attributes_module_init(const char *version)
+{
+ LDB_MODULE_CHECK_VERSION(version);
+ return ldb_register_module(&ldb_linked_attributes_module_ops);
+}
git.samba.org / kai / samba.git / blobdiff