dsdb-schema: do not reload more often than schema_reload_interval
[ddiss/samba.git] / source4 / ldap_server / ldap_backend.c
index 5f9b8221374d20a7958035681a70dc45b2f0bcb2..000d7e28f8144b2baf4c7983f8ab1a1950c66507 100644 (file)
 #include "includes.h"
 #include "ldap_server/ldap_server.h"
 #include "../lib/util/dlinklist.h"
-#include "libcli/ldap/ldap.h"
 #include "auth/credentials/credentials.h"
 #include "auth/gensec/gensec.h"
 #include "param/param.h"
 #include "smbd/service_stream.h"
 #include "dsdb/samdb/samdb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "lib/ldb_wrap.h"
-
-#define VALID_DN_SYNTAX(dn) do {\
-       if (!(dn)) {\
-               return NT_STATUS_NO_MEMORY;\
-       } else if ( ! ldb_dn_validate(dn)) {\
-               result = LDAP_INVALID_DN_SYNTAX;\
-               map_ldb_error(local_ctx, LDB_ERR_INVALID_DN_SYNTAX, &errstr);\
-               goto reply;\
-       }\
-} while(0)
+#include <ldb_errors.h>
+#include <ldb_module.h>
+#include "ldb_wrap.h"
 
 static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
-       const char **errstring)
+       const char *add_err_string, const char **errstring)
 {
        WERROR err;
 
+       /* Certain LDB modules need to return very special WERROR codes. Proof
+        * for them here and if they exist skip the rest of the mapping. */
+       if (add_err_string != NULL) {
+               char *endptr;
+               strtol(add_err_string, &endptr, 16);
+               if (endptr != add_err_string) {
+                       *errstring = add_err_string;
+                       return ldb_err;
+               }
+       }
+
+       /* Otherwise we calculate here a generic, but appropriate WERROR. */
+
        switch (ldb_err) {
        case LDB_SUCCESS:
                err = WERR_OK;
@@ -59,7 +62,7 @@ static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
                err = WERR_DS_TIMELIMIT_EXCEEDED;
        break;
        case LDB_ERR_SIZE_LIMIT_EXCEEDED:
-               err = WERR_DS_SIZE_LIMIT_EXCEEDED;
+               err = WERR_DS_SIZELIMIT_EXCEEDED;
        break;
        case LDB_ERR_COMPARE_FALSE:
                err = WERR_DS_COMPARE_FALSE;
@@ -165,9 +168,9 @@ static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
        break;
        }
 
-       *errstring = talloc_asprintf(mem_ctx, "%08x: %s", W_ERROR_V(err),
-               ldb_strerror(ldb_err));
-       
+       *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
+               add_err_string != NULL ? add_err_string : ldb_strerror(ldb_err));
+
        /* result is 1:1 for now */
        return ldb_err;
 }
@@ -177,13 +180,11 @@ static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
 */
 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn) 
 {
-       conn->ldb = ldb_wrap_connect(conn, 
+       conn->ldb = samdb_connect(conn, 
                                     conn->connection->event.ctx,
                                     conn->lp_ctx,
-                                    lp_sam_url(conn->lp_ctx), 
                                     conn->session_info,
-                                    samdb_credentials(conn, conn->connection->event.ctx, conn->lp_ctx), 
-                                    conn->global_catalog ? LDB_FLG_RDONLY : 0, NULL);
+                                    conn->global_catalog ? LDB_FLG_RDONLY : 0);
        if (conn->ldb == NULL) {
                return NT_STATUS_INTERNAL_DB_CORRUPTION;
        }
@@ -193,9 +194,9 @@ NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
                struct gensec_security_ops **backends = gensec_security_all();
                struct gensec_security_ops **ops
                        = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
-               int i, j = 0;
+               unsigned int i, j = 0;
                for (i = 0; ops && ops[i]; i++) {
-                       if (!lp_parm_bool(conn->lp_ctx,  NULL, "gensec", ops[i]->name, ops[i]->enabled))
+                       if (!lpcfg_parm_bool(conn->lp_ctx,  NULL, "gensec", ops[i]->name, ops[i]->enabled))
                                continue;
 
                        if (ops[i]->sasl_name && ops[i]->server_start) {
@@ -215,7 +216,13 @@ NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
                        }
                }
                talloc_unlink(conn, ops);
-               ldb_set_opaque(conn->ldb, "supportedSASLMechanims", sasl_mechs);
+
+               /* ldb can have a different lifetime to conn, so we
+                  need to ensure that sasl_mechs lives as long as the
+                  ldb does */
+               talloc_steal(conn->ldb, sasl_mechs);
+
+               ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
        }
 
        return NT_STATUS_OK;
@@ -271,6 +278,222 @@ static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
        return NT_STATUS_OK;
 }
 
+static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
+                                    const struct ldb_message *message,
+                                    struct ldb_control **controls,
+                                    void *context)
+{
+       struct ldb_context *ldb = call->conn->ldb;
+       struct ldb_request *req;
+       int ret;
+
+       ret = ldb_msg_sanity_check(ldb, message);
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       ret = ldb_build_add_req(&req, ldb, ldb,
+                                       message,
+                                       controls,
+                                       context,
+                                       ldb_modify_default_callback,
+                                       NULL);
+
+       if (ret != LDB_SUCCESS) return ret;
+
+       if (call->conn->global_catalog) {
+               return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+       }
+       ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+       ret = ldb_transaction_start(ldb);
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       if (!call->conn->is_privileged) {
+               ldb_req_mark_untrusted(req);
+       }
+
+       LDB_REQ_SET_LOCATION(req);
+
+       ret = ldb_request(ldb, req);
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+       }
+
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_transaction_commit(ldb);
+       }
+       else {
+               ldb_transaction_cancel(ldb);
+       }
+
+       talloc_free(req);
+       return ret;
+}
+
+/* create and execute a modify request */
+static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
+                                    const struct ldb_message *message,
+                                    struct ldb_control **controls,
+                                    void *context)
+{
+       struct ldb_context *ldb = call->conn->ldb;
+       struct ldb_request *req;
+       int ret;
+
+       ret = ldb_msg_sanity_check(ldb, message);
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       ret = ldb_build_mod_req(&req, ldb, ldb,
+                                       message,
+                                       controls,
+                                       context,
+                                       ldb_modify_default_callback,
+                                       NULL);
+
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       if (call->conn->global_catalog) {
+               return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+       }
+       ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+       ret = ldb_transaction_start(ldb);
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       if (!call->conn->is_privileged) {
+               ldb_req_mark_untrusted(req);
+       }
+
+       LDB_REQ_SET_LOCATION(req);
+
+       ret = ldb_request(ldb, req);
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+       }
+
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_transaction_commit(ldb);
+       }
+       else {
+               ldb_transaction_cancel(ldb);
+       }
+
+       talloc_free(req);
+       return ret;
+}
+
+/* create and execute a delete request */
+static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
+                                    struct ldb_dn *dn,
+                                    struct ldb_control **controls,
+                                    void *context)
+{
+       struct ldb_context *ldb = call->conn->ldb;
+       struct ldb_request *req;
+       int ret;
+
+       ret = ldb_build_del_req(&req, ldb, ldb,
+                                       dn,
+                                       controls,
+                                       context,
+                                       ldb_modify_default_callback,
+                                       NULL);
+
+       if (ret != LDB_SUCCESS) return ret;
+
+       if (call->conn->global_catalog) {
+               return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+       }
+       ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+       ret = ldb_transaction_start(ldb);
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       if (!call->conn->is_privileged) {
+               ldb_req_mark_untrusted(req);
+       }
+
+       LDB_REQ_SET_LOCATION(req);
+
+       ret = ldb_request(ldb, req);
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+       }
+
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_transaction_commit(ldb);
+       }
+       else {
+               ldb_transaction_cancel(ldb);
+       }
+
+       talloc_free(req);
+       return ret;
+}
+
+static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
+                                       struct ldb_dn *olddn,
+                                       struct ldb_dn *newdn,
+                                       struct ldb_control **controls,
+                                       void *context)
+{
+       struct ldb_context *ldb = call->conn->ldb;
+       struct ldb_request *req;
+       int ret;
+
+       ret = ldb_build_rename_req(&req, ldb, ldb,
+                                       olddn,
+                                       newdn,
+                                       NULL,
+                                       context,
+                                       ldb_modify_default_callback,
+                                       NULL);
+
+       if (ret != LDB_SUCCESS) return ret;
+
+       if (call->conn->global_catalog) {
+               return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+       }
+       ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+       ret = ldb_transaction_start(ldb);
+       if (ret != LDB_SUCCESS) {
+               return ret;
+       }
+
+       if (!call->conn->is_privileged) {
+               ldb_req_mark_untrusted(req);
+       }
+
+       LDB_REQ_SET_LOCATION(req);
+
+       ret = ldb_request(ldb, req);
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+       }
+
+       if (ret == LDB_SUCCESS) {
+               ret = ldb_transaction_commit(ldb);
+       }
+       else {
+               ldb_transaction_cancel(ldb);
+       }
+
+       talloc_free(req);
+       return ret;
+}
+
 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 {
        struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
@@ -292,7 +515,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
        int success_limit = 1;
        int result = -1;
        int ldb_ret = -1;
-       int i, j;
+       unsigned int i, j;
        int extended_type = 1;
 
        DEBUG(10, ("SearchRequest"));
@@ -303,7 +526,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
        basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
-       VALID_DN_SYNTAX(basedn);
+       NT_STATUS_HAVE_NO_MEMORY(basedn);
 
        DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
        DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
@@ -326,7 +549,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
                        break;
                default:
                        result = LDAP_PROTOCOL_ERROR;
-                       map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR,
+                       map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
                                &errstr);
                        errstr = talloc_asprintf(local_ctx,
                                "%s. Invalid scope", errstr);
@@ -375,6 +598,8 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
                        search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
                        ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
                }
+       } else {
+               ldb_request_add_control(lreq, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
        }
 
        extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
@@ -390,6 +615,12 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 
        ldb_set_timeout(samdb, lreq, req->timelimit);
 
+       if (!call->conn->is_privileged) {
+               ldb_req_mark_untrusted(lreq);
+       }
+
+       LDB_REQ_SET_LOCATION(lreq);
+
        ldb_ret = ldb_request(samdb, lreq);
 
        if (ldb_ret != LDB_SUCCESS) {
@@ -431,6 +662,28 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 queue_reply:
                        ldapsrv_queue_reply(call, ent_r);
                }
+
+               /* Send back referrals if they do exist (search operations) */
+               if (res->refs != NULL) {
+                       char **ref;
+                       struct ldap_SearchResRef *ent_ref;
+
+                       for (ref = res->refs; *ref != NULL; ++ref) {
+                               ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
+                               NT_STATUS_HAVE_NO_MEMORY(ent_r);
+
+                               /* Better to have the whole referrals kept here,
+                                * than to find someone further up didn't put
+                                * a value in the right spot in the talloc tree
+                                */
+                               talloc_steal(ent_r, *ref);
+
+                               ent_ref = &ent_r->msg->r.SearchResultReference;
+                               ent_ref->referral = *ref;
+
+                               ldapsrv_queue_reply(call, ent_r);
+                       }
+               }
        }
 
 reply:
@@ -454,7 +707,8 @@ reply:
                }
        } else {
                DEBUG(10,("SearchRequest: error\n"));
-               result = map_ldb_error(local_ctx, ldb_ret, &errstr);
+               result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+                                      &errstr);
        }
 
        done->resultcode = result;
@@ -478,16 +732,17 @@ static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
        const char *errstr = NULL;
        int result = LDAP_SUCCESS;
        int ldb_ret;
-       int i,j;
+       unsigned int i,j;
+       struct ldb_result *res = NULL;
 
        DEBUG(10, ("ModifyRequest"));
-       DEBUGADD(10, (" dn: %s", req->dn));
+       DEBUGADD(10, (" dn: %s\n", req->dn));
 
        local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
        dn = ldb_dn_new(local_ctx, samdb, req->dn);
-       VALID_DN_SYNTAX(dn);
+       NT_STATUS_HAVE_NO_MEMORY(dn);
 
        DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 
@@ -512,7 +767,7 @@ static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
                        default:
                                result = LDAP_PROTOCOL_ERROR;
                                map_ldb_error(local_ctx,
-                                       LDB_ERR_PROTOCOL_ERROR, &errstr);
+                                       LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
                                errstr = talloc_asprintf(local_ctx,
                                        "%s. Invalid LDAP_MODIFY_* type", errstr);
                                goto reply;
@@ -534,26 +789,11 @@ static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
                                NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 
                                for (j=0; j < msg->elements[i].num_values; j++) {
-                                       if (!(req->mods[i].attrib.values[j].length > 0)) {
-                                               result = LDAP_OTHER;
-
-                                               map_ldb_error(local_ctx,
-                                                       LDB_ERR_OTHER, &errstr);
-                                               errstr = talloc_asprintf(local_ctx,
-                                                       "%s. Empty attribute values not allowed", errstr);
-                                               goto reply;
-                                       }
                                        msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
                                        msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;                   
                                }
                        }
                }
-       } else {
-               result = LDAP_OTHER;
-               map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
-               errstr = talloc_asprintf(local_ctx,
-                       "%s. No mods are not allowed", errstr);
-               goto reply;
        }
 
 reply:
@@ -561,16 +801,26 @@ reply:
        NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 
        if (result == LDAP_SUCCESS) {
-               ldb_ret = ldb_modify(samdb, msg);
-               result = map_ldb_error(local_ctx, ldb_ret, &errstr);
+               res = talloc_zero(local_ctx, struct ldb_result);
+               NT_STATUS_HAVE_NO_MEMORY(res);
+               ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
+               result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+                                      &errstr);
        }
 
-       modify_result = &modify_reply->msg->r.AddResponse;
+       modify_result = &modify_reply->msg->r.ModifyResponse;
        modify_result->dn = NULL;
-       modify_result->resultcode = result;
-       modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
-       modify_result->referral = NULL;
-
+       if ((res != NULL) && (res->refs != NULL)) {
+               modify_result->resultcode = map_ldb_error(local_ctx,
+                                                         LDB_ERR_REFERRAL,
+                                                         NULL, &errstr);
+               modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
+               modify_result->referral = talloc_strdup(call, *res->refs);
+       } else {
+               modify_result->resultcode = result;
+               modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
+               modify_result->referral = NULL;
+       }
        talloc_free(local_ctx);
 
        ldapsrv_queue_reply(call, modify_reply);
@@ -590,16 +840,17 @@ static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
        const char *errstr = NULL;
        int result = LDAP_SUCCESS;
        int ldb_ret;
-       int i,j;
+       unsigned int i,j;
+       struct ldb_result *res = NULL;
 
        DEBUG(10, ("AddRequest"));
-       DEBUGADD(10, (" dn: %s", req->dn));
+       DEBUGADD(10, (" dn: %s\n", req->dn));
 
        local_ctx = talloc_named(call, 0, "AddRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
        dn = ldb_dn_new(local_ctx, samdb, req->dn);
-       VALID_DN_SYNTAX(dn);
+       NT_STATUS_HAVE_NO_MEMORY(dn);
 
        DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 
@@ -628,48 +879,37 @@ static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
                                NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 
                                for (j=0; j < msg->elements[i].num_values; j++) {
-                                       if (!(req->attributes[i].values[j].length > 0)) {
-                                               result = LDAP_OTHER;
-                                               map_ldb_error(local_ctx,
-                                                       LDB_ERR_OTHER, &errstr);
-                                               errstr = talloc_asprintf(local_ctx,
-                                                       "%s. Empty attribute values not allowed", errstr);
-                                               goto reply;
-                                       }
                                        msg->elements[i].values[j].length = req->attributes[i].values[j].length;
                                        msg->elements[i].values[j].data = req->attributes[i].values[j].data;                    
                                }
-                       } else {
-                               result = LDAP_OTHER;
-                               map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
-                               errstr = talloc_asprintf(local_ctx,
-                                       "%s. No attribute values are not allowed", errstr);
-                               goto reply;
                        }
                }
-       } else {
-               result = LDAP_OTHER;
-               map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
-               errstr = talloc_asprintf(local_ctx, 
-                       "%s. No attributes are not allowed", errstr);
-               goto reply;
        }
 
-reply:
        add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
        NT_STATUS_HAVE_NO_MEMORY(add_reply);
 
        if (result == LDAP_SUCCESS) {
-               ldb_ret = ldb_add(samdb, msg);
-               result = map_ldb_error(local_ctx, ldb_ret, &errstr);
+               res = talloc_zero(local_ctx, struct ldb_result);
+               NT_STATUS_HAVE_NO_MEMORY(res);
+               ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
+               result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+                                      &errstr);
        }
 
        add_result = &add_reply->msg->r.AddResponse;
        add_result->dn = NULL;
-       add_result->resultcode = result;
-       add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
-       add_result->referral = NULL;
-
+       if ((res != NULL) && (res->refs != NULL)) {
+               add_result->resultcode =  map_ldb_error(local_ctx,
+                                                       LDB_ERR_REFERRAL, NULL,
+                                                       &errstr);
+               add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
+               add_result->referral = talloc_strdup(call, *res->refs);
+       } else {
+               add_result->resultcode = result;
+               add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
+               add_result->referral = NULL;
+       }
        talloc_free(local_ctx);
 
        ldapsrv_queue_reply(call, add_reply);
@@ -688,32 +928,43 @@ static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
        const char *errstr = NULL;
        int result = LDAP_SUCCESS;
        int ldb_ret;
+       struct ldb_result *res = NULL;
 
        DEBUG(10, ("DelRequest"));
-       DEBUGADD(10, (" dn: %s", req->dn));
+       DEBUGADD(10, (" dn: %s\n", req->dn));
 
        local_ctx = talloc_named(call, 0, "DelRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
        dn = ldb_dn_new(local_ctx, samdb, req->dn);
-       VALID_DN_SYNTAX(dn);
+       NT_STATUS_HAVE_NO_MEMORY(dn);
 
        DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 
-reply:
        del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
        NT_STATUS_HAVE_NO_MEMORY(del_reply);
 
        if (result == LDAP_SUCCESS) {
-               ldb_ret = ldb_delete(samdb, dn);
-               result = map_ldb_error(local_ctx, ldb_ret, &errstr);
+               res = talloc_zero(local_ctx, struct ldb_result);
+               NT_STATUS_HAVE_NO_MEMORY(res);
+               ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
+               result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+                                      &errstr);
        }
 
        del_result = &del_reply->msg->r.DelResponse;
        del_result->dn = NULL;
-       del_result->resultcode = result;
-       del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
-       del_result->referral = NULL;
+       if ((res != NULL) && (res->refs != NULL)) {
+               del_result->resultcode = map_ldb_error(local_ctx,
+                                                      LDB_ERR_REFERRAL, NULL,
+                                                      &errstr);
+               del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
+               del_result->referral = talloc_strdup(call, *res->refs);
+       } else {
+               del_result->resultcode = result;
+               del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
+               del_result->referral = NULL;
+       }
 
        talloc_free(local_ctx);
 
@@ -733,60 +984,65 @@ static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
        const char *errstr = NULL;
        int result = LDAP_SUCCESS;
        int ldb_ret;
+       struct ldb_result *res = NULL;
 
        DEBUG(10, ("ModifyDNRequest"));
        DEBUGADD(10, (" dn: %s", req->dn));
-       DEBUGADD(10, (" newrdn: %s", req->newrdn));
+       DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
 
        local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
        olddn = ldb_dn_new(local_ctx, samdb, req->dn);
-       VALID_DN_SYNTAX(olddn);
+       NT_STATUS_HAVE_NO_MEMORY(olddn);
 
        newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
-       VALID_DN_SYNTAX(newrdn);
+       NT_STATUS_HAVE_NO_MEMORY(newrdn);
 
        DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
        DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 
-       if (ldb_dn_get_comp_num(newrdn) != 1) {
-               result = LDAP_INVALID_DN_SYNTAX;
-               map_ldb_error(local_ctx, LDB_ERR_INVALID_DN_SYNTAX, &errstr);
+       if (ldb_dn_get_comp_num(newrdn) == 0) {
+               result = LDAP_PROTOCOL_ERROR;
+               map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
+                             &errstr);
+               goto reply;
+       }
+
+       if (ldb_dn_get_comp_num(newrdn) > 1) {
+               result = LDAP_NAMING_VIOLATION;
+               map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
+                             &errstr);
                goto reply;
        }
 
        /* we can't handle the rename if we should not remove the old dn */
        if (!req->deleteolddn) {
                result = LDAP_UNWILLING_TO_PERFORM;
-               map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, &errstr);
+               map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
+                             &errstr);
                errstr = talloc_asprintf(local_ctx,
                        "%s. Old RDN must be deleted", errstr);
                goto reply;
        }
 
        if (req->newsuperior) {
-               parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
-               VALID_DN_SYNTAX(parentdn);
                DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
-               
-               if (ldb_dn_get_comp_num(parentdn) < 1) {
-                       result = LDAP_AFFECTS_MULTIPLE_DSAS;
-                       map_ldb_error(local_ctx, LDB_ERR_AFFECTS_MULTIPLE_DSAS,
-                               &errstr);
-                       errstr = talloc_asprintf(local_ctx,
-                               "%s. Error new Superior DN invalid", errstr);
-                       goto reply;
-               }
+               parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
        }
 
        if (!parentdn) {
                parentdn = ldb_dn_get_parent(local_ctx, olddn);
-               NT_STATUS_HAVE_NO_MEMORY(parentdn);
+       }
+       if (!parentdn) {
+               result = LDAP_NO_SUCH_OBJECT;
+               map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
+               goto reply;
        }
 
        if ( ! ldb_dn_add_child(parentdn, newrdn)) {
                result = LDAP_OTHER;
+               map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
                goto reply;
        }
        newdn = parentdn;
@@ -796,15 +1052,26 @@ reply:
        NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 
        if (result == LDAP_SUCCESS) {
-               ldb_ret = ldb_rename(samdb, olddn, newdn);
-               result = map_ldb_error(local_ctx, ldb_ret, &errstr);
+               res = talloc_zero(local_ctx, struct ldb_result);
+               NT_STATUS_HAVE_NO_MEMORY(res);
+               ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
+               result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+                                      &errstr);
        }
 
        modifydn = &modifydn_r->msg->r.ModifyDNResponse;
        modifydn->dn = NULL;
-       modifydn->resultcode = result;
-       modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
-       modifydn->referral = NULL;
+       if ((res != NULL) && (res->refs != NULL)) {
+               modifydn->resultcode = map_ldb_error(local_ctx,
+                                                    LDB_ERR_REFERRAL, NULL,
+                                                    &errstr);;
+               modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
+               modifydn->referral = talloc_strdup(call, *res->refs);
+       } else {
+               modifydn->resultcode = result;
+               modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
+               modifydn->referral = NULL;
+       }
 
        talloc_free(local_ctx);
 
@@ -828,13 +1095,13 @@ static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
        int ldb_ret;
 
        DEBUG(10, ("CompareRequest"));
-       DEBUGADD(10, (" dn: %s", req->dn));
+       DEBUGADD(10, (" dn: %s\n", req->dn));
 
        local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
        dn = ldb_dn_new(local_ctx, samdb, req->dn);
-       VALID_DN_SYNTAX(dn);
+       NT_STATUS_HAVE_NO_MEMORY(dn);
 
        DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
        filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute, 
@@ -845,7 +1112,6 @@ static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 
        attrs[0] = NULL;
 
-reply:
        compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
        NT_STATUS_HAVE_NO_MEMORY(compare_r);
 
@@ -853,7 +1119,8 @@ reply:
                ldb_ret = ldb_search(samdb, local_ctx, &res,
                                     dn, LDB_SCOPE_BASE, attrs, "%s", filter);
                if (ldb_ret != LDB_SUCCESS) {
-                       result = map_ldb_error(local_ctx, ldb_ret, &errstr);
+                       result = map_ldb_error(local_ctx, ldb_ret,
+                                              ldb_errstring(samdb), &errstr);
                        DEBUG(10,("CompareRequest: error: %s\n", errstr));
                } else if (res->count == 0) {
                        DEBUG(10,("CompareRequest: doesn't matched\n"));
@@ -865,7 +1132,7 @@ reply:
                        errstr = NULL;
                } else if (res->count > 1) {
                        result = LDAP_OTHER;
-                       map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
+                       map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
                        errstr = talloc_asprintf(local_ctx,
                                "%s. Too many objects match!", errstr);
                        DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
@@ -893,8 +1160,11 @@ static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 
 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 {
-       int i;
+       unsigned int i;
        struct ldap_message *msg = call->request;
+       struct ldb_context *samdb = call->conn->ldb;
+       NTSTATUS status;
+       time_t *lastts;
        /* Check for undecoded critical extensions */
        for (i=0; msg->controls && msg->controls[i]; i++) {
                if (!msg->controls_decoded[i] && 
@@ -913,9 +1183,11 @@ NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
        case LDAP_TAG_SearchRequest:
                return ldapsrv_SearchRequest(call);
        case LDAP_TAG_ModifyRequest:
-               return ldapsrv_ModifyRequest(call);
+               status = ldapsrv_ModifyRequest(call);
+               break;
        case LDAP_TAG_AddRequest:
-               return ldapsrv_AddRequest(call);
+               status = ldapsrv_AddRequest(call);
+               break;
        case LDAP_TAG_DelRequest:
                return ldapsrv_DelRequest(call);
        case LDAP_TAG_ModifyDNRequest:
@@ -927,6 +1199,22 @@ NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
        case LDAP_TAG_ExtendedRequest:
                return ldapsrv_ExtendedRequest(call);
        default:
-               return ldapsrv_unwilling(call, 2);
+               return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
+       }
+
+       if (NT_STATUS_IS_OK(status)) {
+               lastts = (time_t *)ldb_get_opaque(samdb, DSDB_OPAQUE_LAST_SCHEMA_UPDATE_MSG_OPAQUE_NAME);
+               if (lastts && !*lastts) {
+                       DEBUG(10, ("Schema update now was requested, fullfilling the request ts = %d\n", lastts));
+                       /*
+                       * Just requesting the schema will do the trick
+                       * as the delay for reload is experied, we will have a reload
+                       * from the schema as expected as we are not yet in a transaction!
+                       */
+                       dsdb_get_schema(samdb, NULL);
+                       *lastts = time(NULL);
+                       ldb_set_opaque(samdb, DSDB_OPAQUE_LAST_SCHEMA_UPDATE_MSG_OPAQUE_NAME, lastts);
+               }
        }
+       return status;
 }