Cosmetic corrections for the DSDB module
[ira/wip.git] / source4 / dsdb / samdb / ldb_modules / schema_fsmo.c
index 2acc5c0af4a6d29114a7515994f8582affd72290..0266654811ffd511deb71d994447c6b11a13b3dc 100644 (file)
 #include "librpc/gen_ndr/ndr_misc.h"
 #include "librpc/gen_ndr/ndr_drsuapi.h"
 #include "librpc/gen_ndr/ndr_drsblobs.h"
-#include "lib/util/dlinklist.h"
+#include "../lib/util/dlinklist.h"
 #include "param/param.h"
 
+static int generate_objectClasses(struct ldb_context *ldb, struct ldb_message *msg,
+                                 const struct dsdb_schema *schema);
+static int generate_attributeTypes(struct ldb_context *ldb, struct ldb_message *msg,
+                                  const struct dsdb_schema *schema);
+static int generate_dITContentRules(struct ldb_context *ldb, struct ldb_message *msg,
+                                   const struct dsdb_schema *schema);
+
+static const struct {
+       const char *attr;
+       int (*fn)(struct ldb_context *, struct ldb_message *, const struct dsdb_schema *);
+} generated_attrs[] = {
+       {
+               .attr = "objectClasses",
+               .fn = generate_objectClasses
+       },
+       {
+               .attr = "attributeTypes",
+               .fn = generate_attributeTypes
+       },
+       {
+               .attr = "dITContentRules",
+               .fn = generate_dITContentRules
+       }
+};
+
+struct schema_fsmo_private_data {
+       struct ldb_dn *aggregate_dn;
+};
+
+struct schema_fsmo_search_data {
+       struct ldb_module *module;
+       struct ldb_request *req;
+
+       const struct dsdb_schema *schema;
+};
+
 static int schema_fsmo_init(struct ldb_module *module)
 {
        TALLOC_CTX *mem_ctx;
@@ -39,10 +75,7 @@ static int schema_fsmo_init(struct ldb_module *module)
        struct dsdb_schema *schema;
        char *error_string = NULL;
        int ret;
-
-       if (dsdb_get_schema(module->ldb)) {
-               return ldb_next_init(module);
-       }
+       struct schema_fsmo_private_data *data;
 
        schema_dn = samdb_schema_dn(module->ldb);
        if (!schema_dn) {
@@ -52,6 +85,25 @@ static int schema_fsmo_init(struct ldb_module *module)
                return ldb_next_init(module);
        }
 
+       data = talloc(module, struct schema_fsmo_private_data);
+       if (data == NULL) {
+               ldb_oom(module->ldb);
+               return LDB_ERR_OPERATIONS_ERROR;
+       }
+
+       /* Check to see if this is a result on the CN=Aggregate schema */
+       data->aggregate_dn = ldb_dn_copy(data, schema_dn);
+       if (!ldb_dn_add_child_fmt(data->aggregate_dn, "CN=Aggregate")) {
+               ldb_oom(module->ldb);
+               return LDB_ERR_OPERATIONS_ERROR;
+       }
+
+       module->private_data = data;
+
+       if (dsdb_get_schema(module->ldb)) {
+               return ldb_next_init(module);
+       }
+
        mem_ctx = talloc_new(module);
        if (!mem_ctx) {
                ldb_oom(module->ldb);
@@ -75,6 +127,7 @@ static int schema_fsmo_init(struct ldb_module *module)
                                       "schema_fsmo_init: dsdb_schema load failed: %s",
                                       error_string);
                talloc_free(mem_ctx);
+               return ret;
        }
 
        /* dsdb_set_schema() steal schema into the ldb_context */
@@ -101,6 +154,16 @@ static int schema_fsmo_add(struct ldb_module *module, struct ldb_request *req)
        uint32_t id32;
        WERROR status;
 
+       /* special objects should always go through */
+       if (ldb_dn_is_special(req->op.add.message->dn)) {
+               return ldb_next_request(module, req);
+       }
+
+       /* replicated update should always go through */
+       if (ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
+               return ldb_next_request(module, req);
+       }
+
        schema = dsdb_get_schema(module->ldb);
        if (!schema) {
                return ldb_next_request(module, req);
@@ -150,7 +213,6 @@ static int schema_fsmo_add(struct ldb_module *module, struct ldb_request *req)
 
 static int schema_fsmo_extended(struct ldb_module *module, struct ldb_request *req)
 {
-       WERROR status;
        struct ldb_dn *schema_dn;
        struct dsdb_schema *schema;
        char *error_string = NULL;
@@ -209,9 +271,165 @@ static int schema_fsmo_extended(struct ldb_module *module, struct ldb_request *r
        return LDB_SUCCESS;
 }
 
+static int generate_objectClasses(struct ldb_context *ldb, struct ldb_message *msg,
+                                 const struct dsdb_schema *schema) 
+{
+       const struct dsdb_class *class;
+       int ret;
+
+       for (class = schema->classes; class; class = class->next) {
+               ret = ldb_msg_add_string(msg, "objectClasses", schema_class_to_description(msg, class));
+               if (ret != LDB_SUCCESS) {
+                       return ret;
+               }
+       }
+       return LDB_SUCCESS;
+}
+static int generate_attributeTypes(struct ldb_context *ldb, struct ldb_message *msg,
+                                 const struct dsdb_schema *schema) 
+{
+       const struct dsdb_attribute *attribute;
+       int ret;
+       
+       for (attribute = schema->attributes; attribute; attribute = attribute->next) {
+               ret = ldb_msg_add_string(msg, "attributeTypes", schema_attribute_to_description(msg, attribute));
+               if (ret != LDB_SUCCESS) {
+                       return ret;
+               }
+       }
+       return LDB_SUCCESS;
+}
+
+static int generate_dITContentRules(struct ldb_context *ldb, struct ldb_message *msg,
+                                   const struct dsdb_schema *schema) 
+{
+       const struct dsdb_class *class;
+       int ret;
+
+       for (class = schema->classes; class; class = class->next) {
+               if (class->auxiliaryClass || class->systemAuxiliaryClass) {
+                       char *ditcontentrule = schema_class_to_dITContentRule(msg, class, schema);
+                       if (!ditcontentrule) {
+                               ldb_oom(ldb);
+                               return LDB_ERR_OPERATIONS_ERROR;
+                       }
+                       ret = ldb_msg_add_steal_string(msg, "dITContentRules", ditcontentrule);
+                       if (ret != LDB_SUCCESS) {
+                               return ret;
+                       }
+               }
+       }
+       return LDB_SUCCESS;
+}
+
+
+
+/* Add objectClasses, attributeTypes and dITContentRules from the
+   schema object (they are not stored in the database)
+ */
+static int schema_fsmo_search_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+       struct schema_fsmo_search_data *ac;
+       struct schema_fsmo_private_data *mc;
+       int i, ret;
+
+       ac = talloc_get_type(req->context, struct schema_fsmo_search_data);
+       mc = talloc_get_type(ac->module->private_data, struct schema_fsmo_private_data);
+
+       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);
+       }
+       /* Only entries are interesting, and we handle the case of the parent seperatly */
+
+       switch (ares->type) {
+       case LDB_REPLY_ENTRY:
+
+               if (ldb_dn_compare(ares->message->dn, mc->aggregate_dn) != 0) {
+                       return ldb_module_send_entry(ac->req, ares->message);
+               }
+
+               for (i=0; i < ARRAY_SIZE(generated_attrs); i++) {
+                       if (ldb_attr_in_list(ac->req->op.search.attrs, generated_attrs[i].attr)) {
+                               ret = generated_attrs[i].fn(ac->module->ldb, ares->message, ac->schema);
+                               if (ret != LDB_SUCCESS) {
+                                       return ret;
+                               }
+                       }
+               }
+
+               return ldb_module_send_entry(ac->req, ares->message);
+
+       case LDB_REPLY_REFERRAL:
+
+               return ldb_module_send_referral(ac->req, ares->referral);
+
+       case LDB_REPLY_DONE:
+
+               return ldb_module_done(ac->req, ares->controls,
+                                       ares->response, ares->error);
+       }
+
+       return LDB_SUCCESS;
+}
+
+/* search */
+static int schema_fsmo_search(struct ldb_module *module, struct ldb_request *req)
+{
+       int i, ret;
+       struct schema_fsmo_search_data *search_context;
+       struct ldb_request *down_req;
+       struct dsdb_schema *schema = dsdb_get_schema(module->ldb);
+
+       if (!schema || !module->private_data) {
+               /* If there is no schema, there is little we can do */
+               return ldb_next_request(module, req);
+       }
+       for (i=0; i < ARRAY_SIZE(generated_attrs); i++) {
+               if (ldb_attr_in_list(req->op.search.attrs, generated_attrs[i].attr)) {
+                       break;
+               }
+       }
+       if (i == ARRAY_SIZE(generated_attrs)) {
+               /* No request for a generated attr found, nothing to
+                * see here, move along... */
+               return ldb_next_request(module, req);
+       }
+
+       search_context = talloc(req, struct schema_fsmo_search_data);
+       if (!search_context) {
+               ldb_oom(module->ldb);
+               return LDB_ERR_OPERATIONS_ERROR;
+       }
+
+       search_context->module = module;
+       search_context->req = req;
+       search_context->schema = schema;
+
+       ret = ldb_build_search_req_ex(&down_req, module->ldb, search_context,
+                                       req->op.search.base,
+                                       req->op.search.scope,
+                                       req->op.search.tree,
+                                       req->op.search.attrs,
+                                       req->controls,
+                                       search_context, schema_fsmo_search_callback,
+                                       req);
+       if (ret != LDB_SUCCESS) {
+               return LDB_ERR_OPERATIONS_ERROR;
+       }
+
+       return ldb_next_request(module, down_req);
+}
+
+
 _PUBLIC_ const struct ldb_module_ops ldb_schema_fsmo_module_ops = {
        .name           = "schema_fsmo",
        .init_context   = schema_fsmo_init,
        .add            = schema_fsmo_add,
-       .extended       = schema_fsmo_extended
+       .extended       = schema_fsmo_extended,
+       .search         = schema_fsmo_search
 };