s4:rpc_server: Move core functions to core library

Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

5 files changed, 2 insertions, 3829 deletions

diff --git a/source4/rpc_server/dcerpc_server.c b/source4/rpc_server/dcerpc_server.c
index 77dc81aeabc..ffdf34f02f8 100644
--- a/source4/rpc_server/dcerpc_server.c
+++ b/source4/rpc_server/dcerpc_server.c
@@ -24,28 +24,16 @@
 #include "auth/auth.h"
 #include "auth/gensec/gensec.h"
 #include "auth/credentials/credentials.h"
-#include "lib/util/dlinklist.h"
 #include "rpc_server/dcerpc_server.h"
 #include "rpc_server/dcerpc_server_proto.h"
-#include "system/filesys.h"
-#include "libcli/security/security.h"
 #include "param/param.h"
-#include "lib/tsocket/tsocket.h"
-#include "libcli/named_pipe_auth/npa_tstream.h"
 #include "smbd/service_stream.h"
 #include "lib/tsocket/tsocket.h"
 #include "lib/socket/socket.h"
 #include "smbd/process_model.h"
-#include "lib/messaging/irpc.h"
-#include "librpc/rpc/rpc_common.h"
 #include "lib/util/samba_modules.h"
-#include "librpc/gen_ndr/ndr_dcerpc.h"
 #include "lib/util/tevent_ntstatus.h"
 
-static NTSTATUS dcesrv_negotiate_contexts(struct dcesrv_call_state *call,
-				const struct dcerpc_bind *b,
-				struct dcerpc_ack_ctx *ack_ctx_list);
-
 /*
   take a reference to an existing association group
  */
@@ -110,7 +98,7 @@ static struct dcesrv_assoc_group *dcesrv_assoc_group_new(struct dcesrv_connectio
 	if (assoc_group == NULL) {
 		return NULL;
 	}
-	
+
 	id = idr_get_new_random(dce_ctx->assoc_groups_idr, assoc_group, UINT16_MAX);
 	if (id == -1) {
 		talloc_free(assoc_group);
@@ -174,2354 +162,6 @@ NTSTATUS dcesrv_assoc_group_find(struct dcesrv_call_state *call)
 	return NT_STATUS_OK;
 }
 
-/*
-  see if two endpoints match
-*/
-static bool endpoints_match(const struct dcerpc_binding *ep1,
-			    const struct dcerpc_binding *ep2)
-{
-	enum dcerpc_transport_t t1;
-	enum dcerpc_transport_t t2;
-	const char *e1;
-	const char *e2;
-
-	t1 = dcerpc_binding_get_transport(ep1);
-	t2 = dcerpc_binding_get_transport(ep2);
-
-	e1 = dcerpc_binding_get_string_option(ep1, "endpoint");
-	e2 = dcerpc_binding_get_string_option(ep2, "endpoint");
-
-	if (t1 != t2) {
-		return false;
-	}
-
-	if (!e1 || !e2) {
-		return e1 == e2;
-	}
-
-	if (strcasecmp(e1, e2) != 0) {
-		return false;
-	}
-
-	return true;
-}
-
-/*
-  find an endpoint in the dcesrv_context
-*/
-static struct dcesrv_endpoint *find_endpoint(struct dcesrv_context *dce_ctx,
-					     const struct dcerpc_binding *ep_description)
-{
-	struct dcesrv_endpoint *ep;
-	for (ep=dce_ctx->endpoint_list; ep; ep=ep->next) {
-		if (endpoints_match(ep->ep_description, ep_description)) {
-			return ep;
-		}
-	}
-	return NULL;
-}
-
-/*
-  find a registered context_id from a bind or alter_context
-*/
-static struct dcesrv_connection_context *dcesrv_find_context(struct dcesrv_connection *conn, 
-							     uint16_t context_id)
-{
-	struct dcesrv_connection_context *c;
-	for (c=conn->contexts;c;c=c->next) {
-		if (c->context_id == context_id) return c;
-	}
-	return NULL;
-}
-
-/*
-  see if a uuid and if_version match to an interface
-*/
-static bool interface_match(const struct dcesrv_interface *if1,
-							const struct dcesrv_interface *if2)
-{
-	return (if1->syntax_id.if_version == if2->syntax_id.if_version && 
-			GUID_equal(&if1->syntax_id.uuid, &if2->syntax_id.uuid));
-}
-
-/*
-  find the interface operations on any endpoint with this binding
-*/
-static const struct dcesrv_interface *find_interface_by_binding(struct dcesrv_context *dce_ctx,
-								struct dcerpc_binding *binding,
-								const struct dcesrv_interface *iface)
-{
-	struct dcesrv_endpoint *ep;
-	for (ep=dce_ctx->endpoint_list; ep; ep=ep->next) {
-		if (endpoints_match(ep->ep_description, binding)) {
-			struct dcesrv_if_list *ifl;
-			for (ifl=ep->interface_list; ifl; ifl=ifl->next) {
-				if (interface_match(&(ifl->iface), iface)) {
-					return &(ifl->iface);
-				}
-			}
-		}
-	}
-	return NULL;
-}
-
-/*
-  see if a uuid and if_version match to an interface
-*/
-static bool interface_match_by_uuid(const struct dcesrv_interface *iface,
-				    const struct GUID *uuid, uint32_t if_version)
-{
-	return (iface->syntax_id.if_version == if_version && 
-			GUID_equal(&iface->syntax_id.uuid, uuid));
-}
-
-/*
-  find the interface operations on an endpoint by uuid
-*/
-const struct dcesrv_interface *find_interface_by_uuid(const struct dcesrv_endpoint *endpoint,
-						      const struct GUID *uuid, uint32_t if_version)
-{
-	struct dcesrv_if_list *ifl;
-	for (ifl=endpoint->interface_list; ifl; ifl=ifl->next) {
-		if (interface_match_by_uuid(&(ifl->iface), uuid, if_version)) {
-			return &(ifl->iface);
-		}
-	}
-	return NULL;
-}
-
-/*
-  find the earlier parts of a fragmented call awaiting reassembily
-*/
-static struct dcesrv_call_state *dcesrv_find_fragmented_call(struct dcesrv_connection *dce_conn, uint32_t call_id)
-{
-	struct dcesrv_call_state *c;
-	for (c=dce_conn->incoming_fragmented_call_list;c;c=c->next) {
-		if (c->pkt.call_id == call_id) {
-			return c;
-		}
-	}
-	return NULL;
-}
-
-/*
-  register an interface on an endpoint
-
-  An endpoint is one unix domain socket (for ncalrpc), one TCP port
-  (for ncacn_ip_tcp) or one (forwarded) named pipe (for ncacn_np).
-
-  Each endpoint can have many interfaces such as netlogon, lsa or
-  samr.  Some have essentially the full set.
-
-  This is driven from the set of interfaces listed in each IDL file
-  via the PIDL generated *__op_init_server() functions.
-*/
-_PUBLIC_ NTSTATUS dcesrv_interface_register(struct dcesrv_context *dce_ctx,
-				   const char *ep_name,
-				   const char *ncacn_np_secondary_endpoint,
-				   const struct dcesrv_interface *iface,
-				   const struct security_descriptor *sd)
-{
-	struct dcesrv_endpoint *ep;
-	struct dcesrv_if_list *ifl;
-	struct dcerpc_binding *binding;
-	struct dcerpc_binding *binding2 = NULL;
-	bool add_ep = false;
-	NTSTATUS status;
-	enum dcerpc_transport_t transport;
-	char *ep_string = NULL;
-	bool use_single_process = true;
-	const char *ep_process_string;
-
-	/*
-	 * If we are not using handles, there is no need for force
-	 * this service into using a single process.
-	 *
-	 * However, due to the way we listen for RPC packets, we can
-	 * only do this if we have a single service per pipe or TCP
-	 * port, so we still force a single combined process for
-	 * ncalrpc.
-	 */
-	if (iface->flags & DCESRV_INTERFACE_FLAGS_HANDLES_NOT_USED) {
-		use_single_process = false;
-	}
-
-	status = dcerpc_parse_binding(dce_ctx, ep_name, &binding);
-
-	if (NT_STATUS_IS_ERR(status)) {
-		DEBUG(0, ("Trouble parsing binding string '%s'\n", ep_name));
-		return status;
-	}
-
-	transport = dcerpc_binding_get_transport(binding);
-	if (transport == NCACN_IP_TCP) {
-		int port;
-		char port_str[6];
-
-		/* 
-		 * First check if there is already a port specified, eg
-		 * for epmapper on ncacn_ip_tcp:[135]
-		 */
-		const char *endpoint
-			= dcerpc_binding_get_string_option(binding,
-							   "endpoint");
-		if (endpoint == NULL) {
-			port = lpcfg_parm_int(dce_ctx->lp_ctx, NULL,
-					      "rpc server port", iface->name, 0);
-			
-			/*
-			 * For RPC services that are not set to use a single
-			 * process, we do not default to using the 'rpc server
-			 * port' because that would cause a double-bind on
-			 * that port.
-			 */
-			if (port == 0 && !use_single_process) {
-				port = lpcfg_rpc_server_port(dce_ctx->lp_ctx);
-			}
-			if (port != 0) {
-				snprintf(port_str, sizeof(port_str), "%u", port);
-				status = dcerpc_binding_set_string_option(binding,
-									  "endpoint",
-									  port_str);
-				if (!NT_STATUS_IS_OK(status)) {
-					return status;
-				}
-			}
-		}
-	}
-
-	if (transport == NCACN_NP && ncacn_np_secondary_endpoint != NULL) {
-		enum dcerpc_transport_t transport2;
-
-		status = dcerpc_parse_binding(dce_ctx,
-					      ncacn_np_secondary_endpoint,
-					      &binding2);
-		if (!NT_STATUS_IS_OK(status)) {
-			DEBUG(0, ("Trouble parsing 2nd binding string '%s'\n",
-				  ncacn_np_secondary_endpoint));
-			return status;
-		}
-
-		transport2 = dcerpc_binding_get_transport(binding2);
-		SMB_ASSERT(transport2 == transport);
-	}
-
-	/* see if the interface is already registered on the endpoint */
-	if (find_interface_by_binding(dce_ctx, binding, iface)!=NULL) {
-		DEBUG(0,("dcesrv_interface_register: interface '%s' already registered on endpoint '%s'\n",
-			 iface->name, ep_name));
-		return NT_STATUS_OBJECT_NAME_COLLISION;
-	}
-
-	/* check if this endpoint exists
-	 */
-	ep = find_endpoint(dce_ctx, binding);
-
-	if (ep != NULL) {
-		/*
-		 * We want a new port on ncacn_ip_tcp for NETLOGON, so
-		 * it can be multi-process.  Other processes can also
-		 * listen on distinct ports, if they have one forced
-		 * in the code above with eg 'rpc server port:drsuapi = 1027'
-		 *
-		 * If we have mulitiple endpoints on port 0, they each
-		 * get an epemeral port (currently by walking up from
-		 * 1024).
-		 *
-		 * Because one endpoint can only have one process
-		 * model, we add a new IP_TCP endpoint for each model.
-		 *
-		 * This works in conjunction with the forced overwrite
-		 * of ep->use_single_process below.
-		 */
-		if (ep->use_single_process != use_single_process
-		    && transport == NCACN_IP_TCP) {
-			add_ep = true;
-		}
-	}
-
-	if (ep == NULL || add_ep) {
-		ep = talloc_zero(dce_ctx, struct dcesrv_endpoint);
-		if (!ep) {
-			return NT_STATUS_NO_MEMORY;
-		}
-		ZERO_STRUCTP(ep);
-		ep->ep_description = talloc_move(ep, &binding);
-		ep->ep_2nd_description = talloc_move(ep, &binding2);
-		add_ep = true;
-
-		/* add mgmt interface */
-		ifl = talloc_zero(ep, struct dcesrv_if_list);
-		if (!ifl) {
-			return NT_STATUS_NO_MEMORY;
-		}
-
-		ifl->iface = dcesrv_get_mgmt_interface();
-
-		DLIST_ADD(ep->interface_list, ifl);
-	}
-
-	/*
-	 * By default don't force into a single process, but if any
-	 * interface on this endpoint on this service uses handles
-	 * (most do), then we must force into single process mode
-	 *
-	 * By overwriting this each time a new interface is added to
-	 * this endpoint, we end up with the most restrictive setting.
-	 */
-	if (use_single_process) {
-		ep->use_single_process = true;
-	}
-
-	/* talloc a new interface list element */
-	ifl = talloc_zero(ep, struct dcesrv_if_list);
-	if (!ifl) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	/* copy the given interface struct to the one on the endpoints interface list */
-	memcpy(&(ifl->iface),iface, sizeof(struct dcesrv_interface));
-
-	/* if we have a security descriptor given,
-	 * we should see if we can set it up on the endpoint
-	 */
-	if (sd != NULL) {
-		/* if there's currently no security descriptor given on the endpoint
-		 * we try to set it
-		 */
-		if (ep->sd == NULL) {
-			ep->sd = security_descriptor_copy(ep, sd);
-		}
-
-		/* if now there's no security descriptor given on the endpoint
-		 * something goes wrong, either we failed to copy the security descriptor
-		 * or there was already one on the endpoint
-		 */
-		if (ep->sd != NULL) {
-			DEBUG(0,("dcesrv_interface_register: interface '%s' failed to setup a security descriptor\n"
-			         "                           on endpoint '%s'\n",
-				iface->name, ep_name));
-			if (add_ep) free(ep);
-			free(ifl);
-			return NT_STATUS_OBJECT_NAME_COLLISION;
-		}
-	}
-
-	/* finally add the interface on the endpoint */
-	DLIST_ADD(ep->interface_list, ifl);
-
-	/* if it's a new endpoint add it to the dcesrv_context */
-	if (add_ep) {
-		DLIST_ADD(dce_ctx->endpoint_list, ep);
-	}
-
-	/* Re-get the string as we may have set a port */
-	ep_string = dcerpc_binding_string(dce_ctx, ep->ep_description);
-
-	if (use_single_process) {
-		ep_process_string = "single process required";
-	} else {
-		ep_process_string = "multi process compatible";
-	}
-
-	DBG_INFO("Interface '%s' registered on endpoint '%s' (%s)\n",
-		 iface->name, ep_string, ep_process_string);
-	TALLOC_FREE(ep_string);
-
-	return NT_STATUS_OK;
-}
-
-static NTSTATUS dcesrv_session_info_session_key(struct dcesrv_auth *auth,
-						DATA_BLOB *session_key)
-{
-	if (auth->session_info == NULL) {
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	if (auth->session_info->session_key.length == 0) {
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	*session_key = auth->session_info->session_key;
-	return NT_STATUS_OK;
-}
-
-static NTSTATUS dcesrv_remote_session_key(struct dcesrv_auth *auth,
-					  DATA_BLOB *session_key)
-{
-	if (auth->auth_type != DCERPC_AUTH_TYPE_NONE) {
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	return dcesrv_session_info_session_key(auth, session_key);
-}
-
-static NTSTATUS dcesrv_local_fixed_session_key(struct dcesrv_auth *auth,
-					       DATA_BLOB *session_key)
-{
-	return dcerpc_generic_session_key(session_key);
-}
-
-/*
- * Fetch the authentication session key if available.
- *
- * This is the key generated by a gensec authentication.
- *
- */
-_PUBLIC_ NTSTATUS dcesrv_auth_session_key(struct dcesrv_call_state *call,
-					  DATA_BLOB *session_key)
-{
-	struct dcesrv_auth *auth = call->auth_state;
-	SMB_ASSERT(auth->auth_finished);
-	return dcesrv_session_info_session_key(auth, session_key);
-}
-
-/*
- * Fetch the transport session key if available.
- * Typically this is the SMB session key
- * or a fixed key for local transports.
- *
- * The key is always truncated to 16 bytes.
-*/
-_PUBLIC_ NTSTATUS dcesrv_transport_session_key(struct dcesrv_call_state *call,
-					       DATA_BLOB *session_key)
-{
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	SMB_ASSERT(auth->auth_finished);
-
-	if (auth->session_key_fn == NULL) {
-		return NT_STATUS_NO_USER_SESSION_KEY;
-	}
-
-	status = auth->session_key_fn(auth, session_key);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	session_key->length = MIN(session_key->length, 16);
-
-	return NT_STATUS_OK;
-}
-
-static struct dcesrv_auth *dcesrv_auth_create(struct dcesrv_connection *conn)
-{
-	const struct dcesrv_endpoint *ep = conn->endpoint;
-	enum dcerpc_transport_t transport =
-		dcerpc_binding_get_transport(ep->ep_description);
-	struct dcesrv_auth *auth = NULL;
-
-	auth = talloc_zero(conn, struct dcesrv_auth);
-	if (auth == NULL) {
-		return NULL;
-	}
-
-	switch (transport) {
-	case NCACN_NP:
-		auth->session_key_fn = dcesrv_remote_session_key;
-		break;
-	case NCALRPC:
-	case NCACN_UNIX_STREAM:
-		auth->session_key_fn = dcesrv_local_fixed_session_key;
-		break;
-	default:
-		/*
-		 * All other's get a NULL pointer, which
-		 * results in NT_STATUS_NO_USER_SESSION_KEY
-		 */
-		break;
-	}
-
-	return auth;
-}
-
-/*
-  connect to a dcerpc endpoint
-*/
-_PUBLIC_ NTSTATUS dcesrv_endpoint_connect(struct dcesrv_context *dce_ctx,
-				TALLOC_CTX *mem_ctx,
-				const struct dcesrv_endpoint *ep,
-				struct auth_session_info *session_info,
-				struct tevent_context *event_ctx,
-				uint32_t state_flags,
-				struct dcesrv_connection **_p)
-{
-	struct dcesrv_auth *auth = NULL;
-	struct dcesrv_connection *p;
-
-	if (!session_info) {
-		return NT_STATUS_ACCESS_DENIED;
-	}
-
-	p = talloc_zero(mem_ctx, struct dcesrv_connection);
-	NT_STATUS_HAVE_NO_MEMORY(p);
-
-	p->dce_ctx = dce_ctx;
-	p->endpoint = ep;
-	p->packet_log_dir = lpcfg_lock_directory(dce_ctx->lp_ctx);
-	p->event_ctx = event_ctx;
-	p->state_flags = state_flags;
-	p->allow_bind = true;
-	p->max_recv_frag = 5840;
-	p->max_xmit_frag = 5840;
-	p->max_total_request_size = DCERPC_NCACN_REQUEST_DEFAULT_MAX_SIZE;
-
-	p->support_hdr_signing = lpcfg_parm_bool(dce_ctx->lp_ctx,
-						 NULL,
-						 "dcesrv",
-						 "header signing",
-						 true);
-	p->max_auth_states = lpcfg_parm_ulong(dce_ctx->lp_ctx,
-					      NULL,
-					      "dcesrv",
-					      "max auth states",
-					      2049);
-
-	auth = dcesrv_auth_create(p);
-	if (auth == NULL) {
-		talloc_free(p);
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	auth->session_info = talloc_reference(auth, session_info);
-	if (auth->session_info == NULL) {
-		talloc_free(p);
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	p->default_auth_state = auth;
-
-	/*
-	 * For now we only support NDR32.
-	 */
-	p->preferred_transfer = &ndr_transfer_syntax_ndr;
-
-	*_p = p;
-	return NT_STATUS_OK;
-}
-
-/*
-  move a call from an existing linked list to the specified list. This
-  prevents bugs where we forget to remove the call from a previous
-  list when moving it.
- */
-static void dcesrv_call_set_list(struct dcesrv_call_state *call, 
-				 enum dcesrv_call_list list)
-{
-	switch (call->list) {
-	case DCESRV_LIST_NONE:
-		break;
-	case DCESRV_LIST_CALL_LIST:
-		DLIST_REMOVE(call->conn->call_list, call);
-		break;
-	case DCESRV_LIST_FRAGMENTED_CALL_LIST:
-		DLIST_REMOVE(call->conn->incoming_fragmented_call_list, call);
-		break;
-	case DCESRV_LIST_PENDING_CALL_LIST:
-		DLIST_REMOVE(call->conn->pending_call_list, call);
-		break;
-	}
-	call->list = list;
-	switch (list) {
-	case DCESRV_LIST_NONE:
-		break;
-	case DCESRV_LIST_CALL_LIST:
-		DLIST_ADD_END(call->conn->call_list, call);
-		break;
-	case DCESRV_LIST_FRAGMENTED_CALL_LIST:
-		DLIST_ADD_END(call->conn->incoming_fragmented_call_list, call);
-		break;
-	case DCESRV_LIST_PENDING_CALL_LIST:
-		DLIST_ADD_END(call->conn->pending_call_list, call);
-		break;
-	}
-}
-
-static void dcesrv_call_disconnect_after(struct dcesrv_call_state *call,
-					 const char *reason)
-{
-	struct dcesrv_auth *a = NULL;
-
-	if (call->conn->terminate != NULL) {
-		return;
-	}
-
-	call->conn->allow_bind = false;
-	call->conn->allow_alter = false;
-
-	call->conn->default_auth_state->auth_invalid = true;
-
-	for (a = call->conn->auth_states; a != NULL; a = a->next) {
-		a->auth_invalid = true;
-	}
-
-	call->terminate_reason = talloc_strdup(call, reason);
-	if (call->terminate_reason == NULL) {
-		call->terminate_reason = __location__;
-	}
-}
-
-/*
-  return a dcerpc bind_nak
-*/
-static NTSTATUS dcesrv_bind_nak(struct dcesrv_call_state *call, uint32_t reason)
-{
-	struct ncacn_packet pkt;
-	struct dcerpc_bind_nak_version version;
-	struct data_blob_list_item *rep;
-	NTSTATUS status;
-	static const uint8_t _pad[3] = { 0, };
-
-	/*
-	 * We add the call to the pending_call_list
-	 * in order to defer the termination.
-	 */
-	dcesrv_call_disconnect_after(call, "dcesrv_bind_nak");
-
-	/* setup a bind_nak */
-	dcesrv_init_hdr(&pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
-	pkt.auth_length = 0;
-	pkt.call_id = call->pkt.call_id;
-	pkt.ptype = DCERPC_PKT_BIND_NAK;
-	pkt.pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST;
-	pkt.u.bind_nak.reject_reason = reason;
-	version.rpc_vers = 5;
-	version.rpc_vers_minor = 0;
-	pkt.u.bind_nak.num_versions = 1;
-	pkt.u.bind_nak.versions = &version;
-	pkt.u.bind_nak._pad = data_blob_const(_pad, sizeof(_pad));
-
-	rep = talloc_zero(call, struct data_blob_list_item);
-	if (!rep) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	status = dcerpc_ncacn_push_auth(&rep->blob, call, &pkt, NULL);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	dcerpc_set_frag_length(&rep->blob, rep->blob.length);
-
-	DLIST_ADD_END(call->replies, rep);
-	dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
-
-	if (call->conn->call_list && call->conn->call_list->replies) {
-		if (call->conn->transport.report_output_data) {
-			call->conn->transport.report_output_data(call->conn);
-		}
-	}
-
-	return NT_STATUS_OK;	
-}
-
-static NTSTATUS dcesrv_fault_disconnect(struct dcesrv_call_state *call,
-				 uint32_t fault_code)
-{
-	/*
-	 * We add the call to the pending_call_list
-	 * in order to defer the termination.
-	 */
-	dcesrv_call_disconnect_after(call, "dcesrv_fault_disconnect");
-
-	return dcesrv_fault_with_flags(call, fault_code,
-				       DCERPC_PFC_FLAG_DID_NOT_EXECUTE);
-}
-
-static int dcesrv_connection_context_destructor(struct dcesrv_connection_context *c)
-{
-	DLIST_REMOVE(c->conn->contexts, c);
-
-	if (c->iface && c->iface->unbind) {
-		c->iface->unbind(c, c->iface);
-		c->iface = NULL;
-	}
-
-	return 0;
-}
-
-static void dcesrv_prepare_context_auth(struct dcesrv_call_state *dce_call)
-{
-	struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
-	const struct dcesrv_endpoint *endpoint = dce_call->conn->endpoint;
-	enum dcerpc_transport_t transport =
-		dcerpc_binding_get_transport(endpoint->ep_description);
-	struct dcesrv_connection_context *context = dce_call->context;
-	const struct dcesrv_interface *iface = context->iface;
-
-	context->min_auth_level = DCERPC_AUTH_LEVEL_NONE;
-
-	if (transport == NCALRPC) {
-		context->allow_connect = true;
-		return;
-	}
-
-	/*
-	 * allow overwrite per interface
-	 * allow dcerpc auth level connect:<interface>
-	 */
-	context->allow_connect = lpcfg_allow_dcerpc_auth_level_connect(lp_ctx);
-	context->allow_connect = lpcfg_parm_bool(lp_ctx, NULL,
-					"allow dcerpc auth level connect",
-					iface->name,
-					context->allow_connect);
-}
-
-NTSTATUS dcesrv_interface_bind_require_integrity(struct dcesrv_connection_context *context,
-						 const struct dcesrv_interface *iface)
-{
-	/*
-	 * For connection oriented DCERPC DCERPC_AUTH_LEVEL_PACKET (4)
-	 * has the same behavior as DCERPC_AUTH_LEVEL_INTEGRITY (5).
-	 */
-	context->min_auth_level = DCERPC_AUTH_LEVEL_PACKET;
-	return NT_STATUS_OK;
-}
-
-NTSTATUS dcesrv_interface_bind_require_privacy(struct dcesrv_connection_context *context,
-					       const struct dcesrv_interface *iface)
-{
-	context->min_auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
-	return NT_STATUS_OK;
-}
-
-_PUBLIC_ NTSTATUS dcesrv_interface_bind_reject_connect(struct dcesrv_connection_context *context,
-						       const struct dcesrv_interface *iface)
-{
-	struct loadparm_context *lp_ctx = context->conn->dce_ctx->lp_ctx;
-	const struct dcesrv_endpoint *endpoint = context->conn->endpoint;
-	enum dcerpc_transport_t transport =
-		dcerpc_binding_get_transport(endpoint->ep_description);
-
-	if (transport == NCALRPC) {
-		context->allow_connect = true;
-		return NT_STATUS_OK;
-	}
-
-	/*
-	 * allow overwrite per interface
-	 * allow dcerpc auth level connect:<interface>
-	 */
-	context->allow_connect = false;
-	context->allow_connect = lpcfg_parm_bool(lp_ctx, NULL,
-					"allow dcerpc auth level connect",
-					iface->name,
-					context->allow_connect);
-	return NT_STATUS_OK;
-}
-
-_PUBLIC_ NTSTATUS dcesrv_interface_bind_allow_connect(struct dcesrv_connection_context *context,
-						      const struct dcesrv_interface *iface)
-{
-	struct loadparm_context *lp_ctx = context->conn->dce_ctx->lp_ctx;
-	const struct dcesrv_endpoint *endpoint = context->conn->endpoint;
-	enum dcerpc_transport_t transport =
-		dcerpc_binding_get_transport(endpoint->ep_description);
-
-	if (transport == NCALRPC) {
-		context->allow_connect = true;
-		return NT_STATUS_OK;
-	}
-
-	/*
-	 * allow overwrite per interface
-	 * allow dcerpc auth level connect:<interface>
-	 */
-	context->allow_connect = true;
-	context->allow_connect = lpcfg_parm_bool(lp_ctx, NULL,
-					"allow dcerpc auth level connect",
-					iface->name,
-					context->allow_connect);
-	return NT_STATUS_OK;
-}
-
-struct dcesrv_conn_auth_wait_context {
-	struct tevent_req *req;
-	bool done;
-	NTSTATUS status;
-};
-
-struct dcesrv_conn_auth_wait_state {
-	uint8_t dummy;
-};
-
-static struct tevent_req *dcesrv_conn_auth_wait_send(TALLOC_CTX *mem_ctx,
-						     struct tevent_context *ev,
-						     void *private_data)
-{
-	struct dcesrv_conn_auth_wait_context *auth_wait =
-		talloc_get_type_abort(private_data,
-		struct dcesrv_conn_auth_wait_context);
-	struct tevent_req *req = NULL;
-	struct dcesrv_conn_auth_wait_state *state = NULL;
-
-	req = tevent_req_create(mem_ctx, &state,
-				struct dcesrv_conn_auth_wait_state);
-	if (req == NULL) {
-		return NULL;
-	}
-	auth_wait->req = req;
-
-	tevent_req_defer_callback(req, ev);
-
-	if (!auth_wait->done) {
-		return req;
-	}
-
-	if (tevent_req_nterror(req, auth_wait->status)) {
-		return tevent_req_post(req, ev);
-	}
-
-	tevent_req_done(req);
-	return tevent_req_post(req, ev);
-}
-
-static NTSTATUS dcesrv_conn_auth_wait_recv(struct tevent_req *req)
-{
-	return tevent_req_simple_recv_ntstatus(req);
-}
-
-static NTSTATUS dcesrv_conn_auth_wait_setup(struct dcesrv_connection *conn)
-{
-	struct dcesrv_conn_auth_wait_context *auth_wait = NULL;
-
-	if (conn->wait_send != NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-
-	auth_wait = talloc_zero(conn, struct dcesrv_conn_auth_wait_context);
-	if (auth_wait == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	conn->wait_private = auth_wait;
-	conn->wait_send = dcesrv_conn_auth_wait_send;
-	conn->wait_recv = dcesrv_conn_auth_wait_recv;
-	return NT_STATUS_OK;
-}
-
-static void dcesrv_conn_auth_wait_finished(struct dcesrv_connection *conn,
-					   NTSTATUS status)
-{
-	struct dcesrv_conn_auth_wait_context *auth_wait =
-		talloc_get_type_abort(conn->wait_private,
-		struct dcesrv_conn_auth_wait_context);
-
-	auth_wait->done = true;
-	auth_wait->status = status;
-
-	if (auth_wait->req == NULL) {
-		return;
-	}
-
-	if (tevent_req_nterror(auth_wait->req, status)) {
-		return;
-	}
-
-	tevent_req_done(auth_wait->req);
-}
-
-static NTSTATUS dcesrv_auth_reply(struct dcesrv_call_state *call);
-
-static void dcesrv_bind_done(struct tevent_req *subreq);
-
-/*
-  handle a bind request
-*/
-static NTSTATUS dcesrv_bind(struct dcesrv_call_state *call)
-{
-	struct dcesrv_connection *conn = call->conn;
-	struct ncacn_packet *pkt = &call->ack_pkt;
-	NTSTATUS status;
-	uint32_t extra_flags = 0;
-	uint16_t max_req = 0;
-	uint16_t max_rep = 0;
-	struct dcerpc_binding *ep_2nd_description = NULL;
-	const char *endpoint = NULL;
-	struct dcesrv_auth *auth = call->auth_state;
-	struct dcerpc_ack_ctx *ack_ctx_list = NULL;
-	struct dcerpc_ack_ctx *ack_features = NULL;
-	struct tevent_req *subreq = NULL;
-	size_t i;
-
-	status = dcerpc_verify_ncacn_packet_header(&call->pkt,
-			DCERPC_PKT_BIND,
-			call->pkt.u.bind.auth_info.length,
-			0, /* required flags */
-			DCERPC_PFC_FLAG_FIRST |
-			DCERPC_PFC_FLAG_LAST |
-			DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN |
-			0x08 | /* this is not defined, but should be ignored */
-			DCERPC_PFC_FLAG_CONC_MPX |
-			DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
-			DCERPC_PFC_FLAG_MAYBE |
-			DCERPC_PFC_FLAG_OBJECT_UUID);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_bind_nak(call,
-			DCERPC_BIND_NAK_REASON_PROTOCOL_VERSION_NOT_SUPPORTED);
-	}
-
-	/* max_recv_frag and max_xmit_frag result always in the same value! */
-	max_req = MIN(call->pkt.u.bind.max_xmit_frag,
-		      call->pkt.u.bind.max_recv_frag);
-	/*
-	 * The values are between 2048 and 5840 tested against Windows 2012R2
-	 * via ncacn_ip_tcp on port 135.
-	 */
-	max_req = MAX(2048, max_req);
-	max_rep = MIN(max_req, call->conn->max_recv_frag);
-	/* They are truncated to an 8 byte boundary. */
-	max_rep &= 0xFFF8;
-
-	/* max_recv_frag and max_xmit_frag result always in the same value! */
-	call->conn->max_recv_frag = max_rep;
-	call->conn->max_xmit_frag = max_rep;
-
-	status = call->conn->dce_ctx->callbacks.assoc_group.find(call);
-	if (!NT_STATUS_IS_OK(status)) {
-		DBG_NOTICE("Failed to find assoc_group 0x%08x: %s\n",
-			   call->pkt.u.bind.assoc_group_id, nt_errstr(status));
-		return dcesrv_bind_nak(call, 0);
-	}
-
-	if (call->pkt.u.bind.num_contexts < 1) {
-		return dcesrv_bind_nak(call, 0);
-	}
-
-	ack_ctx_list = talloc_zero_array(call, struct dcerpc_ack_ctx,
-					 call->pkt.u.bind.num_contexts);
-	if (ack_ctx_list == NULL) {
-		return dcesrv_bind_nak(call, 0);
-	}
-
-	/*
-	 * Set some sane defaults (required by dcesrv_negotiate_contexts()/
-	 * dcesrv_check_or_create_context()) and do some protocol validation
-	 * and set sane defaults.
-	 */
-	for (i = 0; i < call->pkt.u.bind.num_contexts; i++) {
-		const struct dcerpc_ctx_list *c = &call->pkt.u.bind.ctx_list[i];
-		struct dcerpc_ack_ctx *a = &ack_ctx_list[i];
-		bool is_feature = false;
-		uint64_t features = 0;
-
-		if (c->num_transfer_syntaxes == 0) {
-			return dcesrv_bind_nak(call, 0);
-		}
-
-		a->result = DCERPC_BIND_ACK_RESULT_PROVIDER_REJECTION;
-		a->reason.value = DCERPC_BIND_ACK_REASON_ABSTRACT_SYNTAX_NOT_SUPPORTED;
-
-		/*
-		 * It's only treated as bind time feature request, if the first
-		 * transfer_syntax matches, all others are ignored.
-		 */
-		is_feature = dcerpc_extract_bind_time_features(c->transfer_syntaxes[0],
-							       &features);
-		if (!is_feature) {
-			continue;
-		}
-
-		if (ack_features != NULL) {
-			/*
-			 * Only one bind time feature context is allowed.
-			 */
-			return dcesrv_bind_nak(call, 0);
-		}
-		ack_features = a;
-
-		a->result = DCERPC_BIND_ACK_RESULT_NEGOTIATE_ACK;
-		a->reason.negotiate = 0;
-		if (features & DCERPC_BIND_TIME_SECURITY_CONTEXT_MULTIPLEXING) {
-			if (call->conn->max_auth_states != 0) {
-				a->reason.negotiate |=
-				DCERPC_BIND_TIME_SECURITY_CONTEXT_MULTIPLEXING;
-			}
-		}
-		if (features & DCERPC_BIND_TIME_KEEP_CONNECTION_ON_ORPHAN) {
-			a->reason.negotiate |=
-				DCERPC_BIND_TIME_KEEP_CONNECTION_ON_ORPHAN;
-		}
-
-		call->conn->assoc_group->bind_time_features = a->reason.negotiate;
-	}
-
-	/*
-	 * Try to negotiate one new presentation context.
-	 *
-	 * Deep in here we locate the iface (by uuid) that the client
-	 * requested, from the list of interfaces on the
-	 * call->conn->endpoint, and call iface->bind() on that iface.
-	 *
-	 * call->conn was set up at the accept() of the socket, and
-	 * call->conn->endpoint has a list of interfaces restricted to
-	 * this port or pipe.
-	 */
-	status = dcesrv_negotiate_contexts(call, &call->pkt.u.bind, ack_ctx_list);
-	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROTOCOL_ERROR)) {
-		return dcesrv_bind_nak(call, 0);
-	}
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	/*
-	 * At this point we still don't know which interface (eg
-	 * netlogon, lsa, drsuapi) the caller requested in this bind!
-	 * The most recently added context is available as the first
-	 * element in the linked list at call->conn->contexts, that is
-	 * call->conn->contexts->iface, but they may not have
-	 * requested one at all!
-	 */
-
-	if ((call->pkt.pfc_flags & DCERPC_PFC_FLAG_CONC_MPX) &&
-	    (call->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
-		call->conn->state_flags |= DCESRV_CALL_STATE_FLAG_MULTIPLEXED;
-		extra_flags |= DCERPC_PFC_FLAG_CONC_MPX;
-	}
-
-	if (call->state_flags & DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL) {
-		call->conn->state_flags |= DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL;
-	}
-
-	/*
-	 * After finding the interface and setting up the NDR
-	 * transport negotiation etc, handle any authentication that
-	 * is being requested.
-	 */
-	if (!dcesrv_auth_bind(call)) {
-
-		if (auth->auth_level == DCERPC_AUTH_LEVEL_NONE) {
-			/*
-			 * With DCERPC_AUTH_LEVEL_NONE, we get the
-			 * reject_reason in auth->auth_context_id.
-			 */
-			return dcesrv_bind_nak(call, auth->auth_context_id);
-		}
-
-		/*
-		 * This must a be a temporary failure e.g. talloc or invalid
-		 * configuration, e.g. no machine account.
-		 */
-		return dcesrv_bind_nak(call,
-				DCERPC_BIND_NAK_REASON_TEMPORARY_CONGESTION);
-	}
-
-	/* setup a bind_ack */
-	dcesrv_init_hdr(pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
-	pkt->auth_length = 0;
-	pkt->call_id = call->pkt.call_id;
-	pkt->ptype = DCERPC_PKT_BIND_ACK;
-	pkt->pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST | extra_flags;
-	pkt->u.bind_ack.max_xmit_frag = call->conn->max_xmit_frag;
-	pkt->u.bind_ack.max_recv_frag = call->conn->max_recv_frag;
-	pkt->u.bind_ack.assoc_group_id = call->conn->assoc_group->id;
-
-	ep_2nd_description = call->conn->endpoint->ep_2nd_description;
-	if (ep_2nd_description == NULL) {
-		ep_2nd_description = call->conn->endpoint->ep_description;
-	}
-
-	endpoint = dcerpc_binding_get_string_option(
-				ep_2nd_description,
-				"endpoint");
-	if (endpoint == NULL) {
-		endpoint = "";
-	}
-
-	pkt->u.bind_ack.secondary_address = endpoint;
-	pkt->u.bind_ack.num_results = call->pkt.u.bind.num_contexts;
-	pkt->u.bind_ack.ctx_list = ack_ctx_list;
-	pkt->u.bind_ack.auth_info = data_blob_null;
-
-	status = dcesrv_auth_prepare_bind_ack(call, pkt);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_bind_nak(call, 0);
-	}
-
-	if (auth->auth_finished) {
-		return dcesrv_auth_reply(call);
-	}
-
-	subreq = gensec_update_send(call, call->event_ctx,
-				    auth->gensec_security,
-				    call->in_auth_info.credentials);
-	if (subreq == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-	tevent_req_set_callback(subreq, dcesrv_bind_done, call);
-
-	return dcesrv_conn_auth_wait_setup(conn);
-}
-
-static void dcesrv_bind_done(struct tevent_req *subreq)
-{
-	struct dcesrv_call_state *call =
-		tevent_req_callback_data(subreq,
-		struct dcesrv_call_state);
-	struct dcesrv_connection *conn = call->conn;
-	NTSTATUS status;
-
-	status = gensec_update_recv(subreq, call,
-				    &call->out_auth_info->credentials);
-	TALLOC_FREE(subreq);
-
-	status = dcesrv_auth_complete(call, status);
-	if (!NT_STATUS_IS_OK(status)) {
-		status = dcesrv_bind_nak(call, 0);
-		dcesrv_conn_auth_wait_finished(conn, status);
-		return;
-	}
-
-	status = dcesrv_auth_reply(call);
-	dcesrv_conn_auth_wait_finished(conn, status);
-	return;
-}
-
-static NTSTATUS dcesrv_auth_reply(struct dcesrv_call_state *call)
-{
-	struct ncacn_packet *pkt = &call->ack_pkt;
-	struct data_blob_list_item *rep = NULL;
-	NTSTATUS status;
-
-	rep = talloc_zero(call, struct data_blob_list_item);
-	if (!rep) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	status = dcerpc_ncacn_push_auth(&rep->blob,
-					call,
-					pkt,
-					call->out_auth_info);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	dcerpc_set_frag_length(&rep->blob, rep->blob.length);
-
-	DLIST_ADD_END(call->replies, rep);
-	dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
-
-	if (call->conn->call_list && call->conn->call_list->replies) {
-		if (call->conn->transport.report_output_data) {
-			call->conn->transport.report_output_data(call->conn);
-		}
-	}
-
-	return NT_STATUS_OK;
-}
-
-
-static void dcesrv_auth3_done(struct tevent_req *subreq);
-
-/*
-  handle a auth3 request
-*/
-static NTSTATUS dcesrv_auth3(struct dcesrv_call_state *call)
-{
-	struct dcesrv_connection *conn = call->conn;
-	struct dcesrv_auth *auth = call->auth_state;
-	struct tevent_req *subreq = NULL;
-	NTSTATUS status;
-
-	if (!auth->auth_started) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	if (auth->auth_finished) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	status = dcerpc_verify_ncacn_packet_header(&call->pkt,
-			DCERPC_PKT_AUTH3,
-			call->pkt.u.auth3.auth_info.length,
-			0, /* required flags */
-			DCERPC_PFC_FLAG_FIRST |
-			DCERPC_PFC_FLAG_LAST |
-			DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN |
-			0x08 | /* this is not defined, but should be ignored */
-			DCERPC_PFC_FLAG_CONC_MPX |
-			DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
-			DCERPC_PFC_FLAG_MAYBE |
-			DCERPC_PFC_FLAG_OBJECT_UUID);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	/* handle the auth3 in the auth code */
-	if (!dcesrv_auth_prepare_auth3(call)) {
-		/*
-		 * we don't send a reply to a auth3 request,
-		 * except by a fault.
-		 *
-		 * In anycase we mark the connection as
-		 * invalid.
-		 */
-		auth->auth_invalid = true;
-		if (call->fault_code != 0) {
-			return dcesrv_fault_disconnect(call, call->fault_code);
-		}
-		TALLOC_FREE(call);
-		return NT_STATUS_OK;
-	}
-
-	subreq = gensec_update_send(call, call->event_ctx,
-				    auth->gensec_security,
-				    call->in_auth_info.credentials);
-	if (subreq == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-	tevent_req_set_callback(subreq, dcesrv_auth3_done, call);
-
-	return dcesrv_conn_auth_wait_setup(conn);
-}
-
-static void dcesrv_auth3_done(struct tevent_req *subreq)
-{
-	struct dcesrv_call_state *call =
-		tevent_req_callback_data(subreq,
-		struct dcesrv_call_state);
-	struct dcesrv_connection *conn = call->conn;
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	status = gensec_update_recv(subreq, call,
-				    &call->out_auth_info->credentials);
-	TALLOC_FREE(subreq);
-
-	status = dcesrv_auth_complete(call, status);
-	if (!NT_STATUS_IS_OK(status)) {
-		/*
-		 * we don't send a reply to a auth3 request,
-		 * except by a fault.
-		 *
-		 * In anycase we mark the connection as
-		 * invalid.
-		 */
-		auth->auth_invalid = true;
-		if (call->fault_code != 0) {
-			status = dcesrv_fault_disconnect(call, call->fault_code);
-			dcesrv_conn_auth_wait_finished(conn, status);
-			return;
-		}
-		TALLOC_FREE(call);
-		dcesrv_conn_auth_wait_finished(conn, NT_STATUS_OK);
-		return;
-	}
-
-	/*
-	 * we don't send a reply to a auth3 request.
-	 */
-	TALLOC_FREE(call);
-	dcesrv_conn_auth_wait_finished(conn, NT_STATUS_OK);
-	return;
-}
-
-
-static NTSTATUS dcesrv_check_or_create_context(struct dcesrv_call_state *call,
-				const struct dcerpc_bind *b,
-				const struct dcerpc_ctx_list *ctx,
-				struct dcerpc_ack_ctx *ack,
-				bool validate_only,
-				const struct ndr_syntax_id *supported_transfer)
-{
-	uint32_t if_version;
-	struct dcesrv_connection_context *context;
-	const struct dcesrv_interface *iface;
-	struct GUID uuid;
-	NTSTATUS status;
-	const struct ndr_syntax_id *selected_transfer = NULL;
-	size_t i;
-	bool ok;
-
-	if (b == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-	if (ctx == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-	if (ctx->num_transfer_syntaxes < 1) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-	if (ack == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-	if (supported_transfer == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-
-	switch (ack->result) {
-	case DCERPC_BIND_ACK_RESULT_ACCEPTANCE:
-	case DCERPC_BIND_ACK_RESULT_NEGOTIATE_ACK:
-		/*
-		 * We is already completed.
-		 */
-		return NT_STATUS_OK;
-	default:
-		break;
-	}
-
-	ack->result = DCERPC_BIND_ACK_RESULT_PROVIDER_REJECTION;
-	ack->reason.value = DCERPC_BIND_ACK_REASON_ABSTRACT_SYNTAX_NOT_SUPPORTED;
-
-	if_version = ctx->abstract_syntax.if_version;
-	uuid = ctx->abstract_syntax.uuid;
-
-	iface = find_interface_by_uuid(call->conn->endpoint, &uuid, if_version);
-	if (iface == NULL) {
-		char *uuid_str = GUID_string(call, &uuid);
-		DEBUG(2,("Request for unknown dcerpc interface %s/%d\n", uuid_str, if_version));
-		talloc_free(uuid_str);
-		/*
-		 * We report this only via ack->result
-		 */
-		return NT_STATUS_OK;
-	}
-
-	ack->result = DCERPC_BIND_ACK_RESULT_PROVIDER_REJECTION;
-	ack->reason.value = DCERPC_BIND_ACK_REASON_TRANSFER_SYNTAXES_NOT_SUPPORTED;
-
-	if (validate_only) {
-		/*
-		 * We report this only via ack->result
-		 */
-		return NT_STATUS_OK;
-	}
-
-	for (i = 0; i < ctx->num_transfer_syntaxes; i++) {
-		/*
-		 * we only do NDR encoded dcerpc for now.
-		 */
-		ok = ndr_syntax_id_equal(&ctx->transfer_syntaxes[i],
-					 supported_transfer);
-		if (ok) {
-			selected_transfer = supported_transfer;
-			break;
-		}
-	}
-
-	context = dcesrv_find_context(call->conn, ctx->context_id);
-	if (context != NULL) {
-		ok = ndr_syntax_id_equal(&context->iface->syntax_id,
-					 &ctx->abstract_syntax);
-		if (!ok) {
-			return NT_STATUS_RPC_PROTOCOL_ERROR;
-		}
-
-		if (selected_transfer != NULL) {
-			ok = ndr_syntax_id_equal(&context->transfer_syntax,
-						 selected_transfer);
-			if (!ok) {
-				return NT_STATUS_RPC_PROTOCOL_ERROR;
-			}
-
-			ack->result = DCERPC_BIND_ACK_RESULT_ACCEPTANCE;
-			ack->reason.value = DCERPC_BIND_ACK_REASON_NOT_SPECIFIED;
-			ack->syntax = context->transfer_syntax;
-		}
-
-		/*
-		 * We report this only via ack->result
-		 */
-		return NT_STATUS_OK;
-	}
-
-	if (selected_transfer == NULL) {
-		/*
-		 * We report this only via ack->result
-		 */
-		return NT_STATUS_OK;
-	}
-
-	ack->result = DCERPC_BIND_ACK_RESULT_USER_REJECTION;
-	ack->reason.value = DCERPC_BIND_ACK_REASON_LOCAL_LIMIT_EXCEEDED;
-
-	/* add this context to the list of available context_ids */
-	context = talloc_zero(call->conn, struct dcesrv_connection_context);
-	if (context == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-	context->conn = call->conn;
-	context->context_id = ctx->context_id;
-	context->iface = iface;
-	context->transfer_syntax = *selected_transfer;
-	DLIST_ADD(call->conn->contexts, context);
-	call->context = context;
-	talloc_set_destructor(context, dcesrv_connection_context_destructor);
-
-	dcesrv_prepare_context_auth(call);
-
-	/*
-	 * Multiplex is supported by default
-	 */
-	call->state_flags |= DCESRV_CALL_STATE_FLAG_MULTIPLEXED;
-
-	status = iface->bind(context, iface);
-	call->context = NULL;
-	if (!NT_STATUS_IS_OK(status)) {
-		/* we don't want to trigger the iface->unbind() hook */
-		context->iface = NULL;
-		talloc_free(context);
-		/*
-		 * We report this only via ack->result
-		 */
-		return NT_STATUS_OK;
-	}
-
-	ack->result = DCERPC_BIND_ACK_RESULT_ACCEPTANCE;
-	ack->reason.value = DCERPC_BIND_ACK_REASON_NOT_SPECIFIED;
-	ack->syntax = context->transfer_syntax;
-	return NT_STATUS_OK;
-}
-
-static NTSTATUS dcesrv_negotiate_contexts(struct dcesrv_call_state *call,
-				const struct dcerpc_bind *b,
-				struct dcerpc_ack_ctx *ack_ctx_list)
-{
-	NTSTATUS status;
-	size_t i;
-	bool validate_only = false;
-	bool preferred_ndr32;
-
-	/*
-	 * Try to negotiate one new presentation context,
-	 * using our preferred transfer syntax.
-	 */
-	for (i = 0; i < b->num_contexts; i++) {
-		const struct dcerpc_ctx_list *c = &b->ctx_list[i];
-		struct dcerpc_ack_ctx *a = &ack_ctx_list[i];
-
-		status = dcesrv_check_or_create_context(call, b, c, a,
-						validate_only,
-						call->conn->preferred_transfer);
-		if (!NT_STATUS_IS_OK(status)) {
-			return status;
-		}
-
-		if (a->result == DCERPC_BIND_ACK_RESULT_ACCEPTANCE) {
-			/*
-			 * We managed to negotiate one context.
-			 *
-			 * => we're done.
-			 */
-			validate_only = true;
-		}
-	}
-
-	preferred_ndr32 = ndr_syntax_id_equal(&ndr_transfer_syntax_ndr,
-					call->conn->preferred_transfer);
-	if (preferred_ndr32) {
-		/*
-		 * We're done.
-		 */
-		return NT_STATUS_OK;
-	}
-
-	/*
-	 * Try to negotiate one new presentation context,
-	 * using NDR 32 as fallback.
-	 */
-	for (i = 0; i < b->num_contexts; i++) {
-		const struct dcerpc_ctx_list *c = &b->ctx_list[i];
-		struct dcerpc_ack_ctx *a = &ack_ctx_list[i];
-
-		status = dcesrv_check_or_create_context(call, b, c, a,
-						validate_only,
-						&ndr_transfer_syntax_ndr);
-		if (!NT_STATUS_IS_OK(status)) {
-			return status;
-		}
-
-		if (a->result == DCERPC_BIND_ACK_RESULT_ACCEPTANCE) {
-			/*
-			 * We managed to negotiate one context.
-			 *
-			 * => we're done.
-			 */
-			validate_only = true;
-		}
-	}
-
-	return NT_STATUS_OK;
-}
-
-static void dcesrv_alter_done(struct tevent_req *subreq);
-
-/*
-  handle a alter context request
-*/
-static NTSTATUS dcesrv_alter(struct dcesrv_call_state *call)
-{
-	struct dcesrv_connection *conn = call->conn;
-	NTSTATUS status;
-	bool auth_ok = false;
-	struct ncacn_packet *pkt = &call->ack_pkt;
-	uint32_t extra_flags = 0;
-	struct dcesrv_auth *auth = call->auth_state;
-	struct dcerpc_ack_ctx *ack_ctx_list = NULL;
-	struct tevent_req *subreq = NULL;
-	size_t i;
-
-	if (!call->conn->allow_alter) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	status = dcerpc_verify_ncacn_packet_header(&call->pkt,
-			DCERPC_PKT_ALTER,
-			call->pkt.u.alter.auth_info.length,
-			0, /* required flags */
-			DCERPC_PFC_FLAG_FIRST |
-			DCERPC_PFC_FLAG_LAST |
-			DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN |
-			0x08 | /* this is not defined, but should be ignored */
-			DCERPC_PFC_FLAG_CONC_MPX |
-			DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
-			DCERPC_PFC_FLAG_MAYBE |
-			DCERPC_PFC_FLAG_OBJECT_UUID);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	auth_ok = dcesrv_auth_alter(call);
-	if (!auth_ok) {
-		if (call->fault_code != 0) {
-			return dcesrv_fault_disconnect(call, call->fault_code);
-		}
-	}
-
-	if (call->pkt.u.alter.num_contexts < 1) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	ack_ctx_list = talloc_zero_array(call, struct dcerpc_ack_ctx,
-					 call->pkt.u.alter.num_contexts);
-	if (ack_ctx_list == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	/*
-	 * Set some sane defaults (required by dcesrv_negotiate_contexts()/
-	 * dcesrv_check_or_create_context()) and do some protocol validation
-	 * and set sane defaults.
-	 */
-	for (i = 0; i < call->pkt.u.alter.num_contexts; i++) {
-		const struct dcerpc_ctx_list *c = &call->pkt.u.alter.ctx_list[i];
-		struct dcerpc_ack_ctx *a = &ack_ctx_list[i];
-
-		if (c->num_transfer_syntaxes == 0) {
-			return dcesrv_fault_disconnect(call,
-					DCERPC_NCA_S_PROTO_ERROR);
-		}
-
-		a->result = DCERPC_BIND_ACK_RESULT_PROVIDER_REJECTION;
-		a->reason.value = DCERPC_BIND_ACK_REASON_ABSTRACT_SYNTAX_NOT_SUPPORTED;
-	}
-
-	/*
-	 * Try to negotiate one new presentation context.
-	 */
-	status = dcesrv_negotiate_contexts(call, &call->pkt.u.alter, ack_ctx_list);
-	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROTOCOL_ERROR)) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	if ((call->pkt.pfc_flags & DCERPC_PFC_FLAG_CONC_MPX) &&
-	    (call->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
-		call->conn->state_flags |= DCESRV_CALL_STATE_FLAG_MULTIPLEXED;
-		extra_flags |= DCERPC_PFC_FLAG_CONC_MPX;
-	}
-
-	if (call->state_flags & DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL) {
-		call->conn->state_flags |= DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL;
-	}
-
-	/* handle any authentication that is being requested */
-	if (!auth_ok) {
-		if (call->in_auth_info.auth_type != auth->auth_type) {
-			return dcesrv_fault_disconnect(call,
-					DCERPC_FAULT_SEC_PKG_ERROR);
-		}
-		return dcesrv_fault_disconnect(call, DCERPC_FAULT_ACCESS_DENIED);
-	}
-
-	dcesrv_init_hdr(pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
-	pkt->auth_length = 0;
-	pkt->call_id = call->pkt.call_id;
-	pkt->ptype = DCERPC_PKT_ALTER_RESP;
-	pkt->pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST | extra_flags;
-	pkt->u.alter_resp.max_xmit_frag = call->conn->max_xmit_frag;
-	pkt->u.alter_resp.max_recv_frag = call->conn->max_recv_frag;
-	pkt->u.alter_resp.assoc_group_id = call->conn->assoc_group->id;
-	pkt->u.alter_resp.secondary_address = "";
-	pkt->u.alter_resp.num_results = call->pkt.u.alter.num_contexts;
-	pkt->u.alter_resp.ctx_list = ack_ctx_list;
-	pkt->u.alter_resp.auth_info = data_blob_null;
-
-	status = dcesrv_auth_prepare_alter_ack(call, pkt);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_fault_disconnect(call, DCERPC_FAULT_SEC_PKG_ERROR);
-	}
-
-	if (auth->auth_finished) {
-		return dcesrv_auth_reply(call);
-	}
-
-	subreq = gensec_update_send(call, call->event_ctx,
-				    auth->gensec_security,
-				    call->in_auth_info.credentials);
-	if (subreq == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-	tevent_req_set_callback(subreq, dcesrv_alter_done, call);
-
-	return dcesrv_conn_auth_wait_setup(conn);
-}
-
-static void dcesrv_alter_done(struct tevent_req *subreq)
-{
-	struct dcesrv_call_state *call =
-		tevent_req_callback_data(subreq,
-		struct dcesrv_call_state);
-	struct dcesrv_connection *conn = call->conn;
-	NTSTATUS status;
-
-	status = gensec_update_recv(subreq, call,
-				    &call->out_auth_info->credentials);
-	TALLOC_FREE(subreq);
-
-	status = dcesrv_auth_complete(call, status);
-	if (!NT_STATUS_IS_OK(status)) {
-		status = dcesrv_fault_disconnect(call, DCERPC_FAULT_SEC_PKG_ERROR);
-		dcesrv_conn_auth_wait_finished(conn, status);
-		return;
-	}
-
-	status = dcesrv_auth_reply(call);
-	dcesrv_conn_auth_wait_finished(conn, status);
-	return;
-}
-
-/*
-  possibly save the call for inspection with ndrdump
- */
-static void dcesrv_save_call(struct dcesrv_call_state *call, const char *why)
-{
-#ifdef DEVELOPER
-	char *fname;
-	const char *dump_dir;
-	dump_dir = lpcfg_parm_string(call->conn->dce_ctx->lp_ctx, NULL, "dcesrv", "stubs directory");
-	if (!dump_dir) {
-		return;
-	}
-	fname = talloc_asprintf(call, "%s/RPC-%s-%u-%s.dat",
-				dump_dir,
-				call->context->iface->name,
-				call->pkt.u.request.opnum,
-				why);
-	if (file_save(fname, call->pkt.u.request.stub_and_verifier.data, call->pkt.u.request.stub_and_verifier.length)) {
-		DEBUG(0,("RPC SAVED %s\n", fname));
-	}
-	talloc_free(fname);
-#endif
-}
-
-static NTSTATUS dcesrv_check_verification_trailer(struct dcesrv_call_state *call)
-{
-	TALLOC_CTX *frame = talloc_stackframe();
-	const uint32_t bitmask1 = call->conn->client_hdr_signing ?
-		DCERPC_SEC_VT_CLIENT_SUPPORTS_HEADER_SIGNING : 0;
-	const struct dcerpc_sec_vt_pcontext pcontext = {
-		.abstract_syntax = call->context->iface->syntax_id,
-		.transfer_syntax = call->context->transfer_syntax,
-	};
-	const struct dcerpc_sec_vt_header2 header2 =
-		dcerpc_sec_vt_header2_from_ncacn_packet(&call->pkt);
-	enum ndr_err_code ndr_err;
-	struct dcerpc_sec_verification_trailer *vt = NULL;
-	NTSTATUS status = NT_STATUS_OK;
-	bool ok;
-
-	SMB_ASSERT(call->pkt.ptype == DCERPC_PKT_REQUEST);
-
-	ndr_err = ndr_pop_dcerpc_sec_verification_trailer(call->ndr_pull,
-							  frame, &vt);
-	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
-		status = ndr_map_error2ntstatus(ndr_err);
-		goto done;
-	}
-
-	ok = dcerpc_sec_verification_trailer_check(vt, &bitmask1,
-						   &pcontext, &header2);
-	if (!ok) {
-		status = NT_STATUS_ACCESS_DENIED;
-		goto done;
-	}
-done:
-	TALLOC_FREE(frame);
-	return status;
-}
-
-/*
-  handle a dcerpc request packet
-*/
-static NTSTATUS dcesrv_request(struct dcesrv_call_state *call)
-{
-	const struct dcesrv_endpoint *endpoint = call->conn->endpoint;
-	struct dcesrv_auth *auth = call->auth_state;
-	enum dcerpc_transport_t transport =
-		dcerpc_binding_get_transport(endpoint->ep_description);
-	struct ndr_pull *pull;
-	NTSTATUS status;
-
-	if (!auth->auth_finished) {
-		return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-	}
-
-	/* if authenticated, and the mech we use can't do async replies, don't use them... */
-	if (auth->gensec_security != NULL &&
-	    !gensec_have_feature(auth->gensec_security, GENSEC_FEATURE_ASYNC_REPLIES)) {
-		call->state_flags &= ~DCESRV_CALL_STATE_FLAG_MAY_ASYNC;
-	}
-
-	if (call->context == NULL) {
-		return dcesrv_fault_with_flags(call, DCERPC_NCA_S_UNKNOWN_IF,
-					DCERPC_PFC_FLAG_DID_NOT_EXECUTE);
-	}
-
-	switch (auth->auth_level) {
-	case DCERPC_AUTH_LEVEL_NONE:
-	case DCERPC_AUTH_LEVEL_PACKET:
-	case DCERPC_AUTH_LEVEL_INTEGRITY:
-	case DCERPC_AUTH_LEVEL_PRIVACY:
-		break;
-	default:
-		if (!call->context->allow_connect) {
-			char *addr;
-
-			addr = tsocket_address_string(call->conn->remote_address,
-						      call);
-
-			DEBUG(2, ("%s: restrict auth_level_connect access "
-				  "to [%s] with auth[type=0x%x,level=0x%x] "
-				  "on [%s] from [%s]\n",
-				  __func__, call->context->iface->name,
-				  auth->auth_type,
-				  auth->auth_level,
-				  derpc_transport_string_by_transport(transport),
-				  addr));
-			return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
-		}
-		break;
-	}
-
-	if (auth->auth_level < call->context->min_auth_level) {
-		char *addr;
-
-		addr = tsocket_address_string(call->conn->remote_address, call);
-
-		DEBUG(2, ("%s: restrict access by min_auth_level[0x%x] "
-			  "to [%s] with auth[type=0x%x,level=0x%x] "
-			  "on [%s] from [%s]\n",
-			  __func__,
-			  call->context->min_auth_level,
-			  call->context->iface->name,
-			  auth->auth_type,
-			  auth->auth_level,
-			  derpc_transport_string_by_transport(transport),
-			  addr));
-		return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
-	}
-
-	pull = ndr_pull_init_blob(&call->pkt.u.request.stub_and_verifier, call);
-	NT_STATUS_HAVE_NO_MEMORY(pull);
-
-	pull->flags |= LIBNDR_FLAG_REF_ALLOC;
-
-	call->ndr_pull	= pull;
-
-	if (!(call->pkt.drep[0] & DCERPC_DREP_LE)) {
-		pull->flags |= LIBNDR_FLAG_BIGENDIAN;
-	}
-
-	status = dcesrv_check_verification_trailer(call);
-	if (!NT_STATUS_IS_OK(status)) {
-		uint32_t faultcode = DCERPC_FAULT_OTHER;
-		if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
-			faultcode = DCERPC_FAULT_ACCESS_DENIED;
-		}
-		DEBUG(10, ("dcesrv_check_verification_trailer failed: %s\n",
-			   nt_errstr(status)));
-		return dcesrv_fault(call, faultcode);
-	}
-
-	/* unravel the NDR for the packet */
-	status = call->context->iface->ndr_pull(call, call, pull, &call->r);
-	if (!NT_STATUS_IS_OK(status)) {
-		uint8_t extra_flags = 0;
-		if (call->fault_code == DCERPC_FAULT_OP_RNG_ERROR) {
-			/* we got an unknown call */
-			DEBUG(3,(__location__ ": Unknown RPC call %u on %s\n",
-				 call->pkt.u.request.opnum,
-				 call->context->iface->name));
-			dcesrv_save_call(call, "unknown");
-			extra_flags |= DCERPC_PFC_FLAG_DID_NOT_EXECUTE;
-		} else {
-			dcesrv_save_call(call, "pullfail");
-		}
-		return dcesrv_fault_with_flags(call, call->fault_code, extra_flags);
-	}
-
-	if (pull->offset != pull->data_size) {
-		dcesrv_save_call(call, "extrabytes");
-		DEBUG(3,("Warning: %d extra bytes in incoming RPC request\n", 
-			 pull->data_size - pull->offset));
-	}
-
-	/* call the dispatch function */
-	status = call->context->iface->dispatch(call, call, call->r);
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(5,("dcerpc fault in call %s:%02x - %s\n",
-			 call->context->iface->name,
-			 call->pkt.u.request.opnum,
-			 dcerpc_errstr(pull, call->fault_code)));
-		return dcesrv_fault(call, call->fault_code);
-	}
-
-	/* add the call to the pending list */
-	dcesrv_call_set_list(call, DCESRV_LIST_PENDING_CALL_LIST);
-
-	if (call->state_flags & DCESRV_CALL_STATE_FLAG_ASYNC) {
-		return NT_STATUS_OK;
-	}
-
-	return dcesrv_reply(call);
-}
-
-
-/*
-  remove the call from the right list when freed
- */
-static int dcesrv_call_dequeue(struct dcesrv_call_state *call)
-{
-	dcesrv_call_set_list(call, DCESRV_LIST_NONE);
-	return 0;
-}
-
-_PUBLIC_ const struct tsocket_address *dcesrv_connection_get_local_address(struct dcesrv_connection *conn)
-{
-	return conn->local_address;
-}
-
-_PUBLIC_ const struct tsocket_address *dcesrv_connection_get_remote_address(struct dcesrv_connection *conn)
-{
-	return conn->remote_address;
-}
-
-/*
-  process some input to a dcerpc endpoint server.
-*/
-static NTSTATUS dcesrv_process_ncacn_packet(struct dcesrv_connection *dce_conn,
-					    struct ncacn_packet *pkt,
-					    DATA_BLOB blob)
-{
-	NTSTATUS status;
-	struct dcesrv_call_state *call;
-	struct dcesrv_call_state *existing = NULL;
-	size_t num_auth_ctx = 0;
-	enum dcerpc_AuthType auth_type = 0;
-	enum dcerpc_AuthLevel auth_level = 0;
-	uint32_t auth_context_id = 0;
-
-	call = talloc_zero(dce_conn, struct dcesrv_call_state);
-	if (!call) {
-		data_blob_free(&blob);
-		talloc_free(pkt);
-		return NT_STATUS_NO_MEMORY;
-	}
-	call->conn		= dce_conn;
-	call->event_ctx		= dce_conn->event_ctx;
-	call->state_flags	= call->conn->state_flags;
-	call->time		= timeval_current();
-	call->list              = DCESRV_LIST_NONE;
-
-	talloc_steal(call, pkt);
-	talloc_steal(call, blob.data);
-	call->pkt = *pkt;
-
-	if (dce_conn->max_auth_states == 0) {
-		call->auth_state = dce_conn->default_auth_state;
-	} else if (call->pkt.auth_length == 0) {
-		if (call->pkt.ptype == DCERPC_PKT_REQUEST &&
-		    dce_conn->default_auth_level_connect != NULL)
-		{
-			call->auth_state = dce_conn->default_auth_level_connect;
-		} else {
-			call->auth_state = dce_conn->default_auth_state;
-		}
-	}
-
-	if (call->auth_state == NULL) {
-		struct dcesrv_auth *a = NULL;
-
-		auth_type = dcerpc_get_auth_type(&blob);
-		auth_level = dcerpc_get_auth_level(&blob);
-		auth_context_id = dcerpc_get_auth_context_id(&blob);
-
-		if (call->pkt.ptype == DCERPC_PKT_REQUEST) {
-			dce_conn->default_auth_level_connect = NULL;
-			if (auth_level == DCERPC_AUTH_LEVEL_CONNECT) {
-				dce_conn->got_explicit_auth_level_connect = true;
-			}
-		}
-
-		for (a = dce_conn->auth_states; a != NULL; a = a->next) {
-			num_auth_ctx++;
-
-			if (a->auth_type != auth_type) {
-				continue;
-			}
-			if (a->auth_finished && a->auth_level != auth_level) {
-				continue;
-			}
-			if (a->auth_context_id != auth_context_id) {
-				continue;
-			}
-
-			DLIST_PROMOTE(dce_conn->auth_states, a);
-			call->auth_state = a;
-			break;
-		}
-	}
-
-	if (call->auth_state == NULL) {
-		struct dcesrv_auth *a = NULL;
-
-		if (num_auth_ctx >= dce_conn->max_auth_states) {
-			return dcesrv_fault_disconnect(call,
-					DCERPC_NCA_S_PROTO_ERROR);
-		}
-
-		a = dcesrv_auth_create(dce_conn);
-		if (a == NULL) {
-			talloc_free(call);
-			return NT_STATUS_NO_MEMORY;
-		}
-		DLIST_ADD(dce_conn->auth_states, a);
-		if (call->pkt.ptype == DCERPC_PKT_REQUEST) {
-			/*
-			 * This can never be valid.
-			 */
-			a->auth_invalid = true;
-		}
-		call->auth_state = a;
-	}
-
-	talloc_set_destructor(call, dcesrv_call_dequeue);
-
-	if (call->conn->allow_bind) {
-		/*
-		 * Only one bind is possible per connection
-		 */
-		call->conn->allow_bind = false;
-		return dcesrv_bind(call);
-	}
-
-	/* we have to check the signing here, before combining the
-	   pdus */
-	if (call->pkt.ptype == DCERPC_PKT_REQUEST) {
-		dcesrv_default_auth_state_prepare_request(call);
-
-		if (call->auth_state->auth_started &&
-		    !call->auth_state->auth_finished) {
-			return dcesrv_fault_disconnect(call,
-					DCERPC_NCA_S_PROTO_ERROR);
-		}
-
-		status = dcerpc_verify_ncacn_packet_header(&call->pkt,
-				DCERPC_PKT_REQUEST,
-				call->pkt.u.request.stub_and_verifier.length,
-				0, /* required_flags */
-				DCERPC_PFC_FLAG_FIRST |
-				DCERPC_PFC_FLAG_LAST |
-				DCERPC_PFC_FLAG_PENDING_CANCEL |
-				0x08 | /* this is not defined, but should be ignored */
-				DCERPC_PFC_FLAG_CONC_MPX |
-				DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
-				DCERPC_PFC_FLAG_MAYBE |
-				DCERPC_PFC_FLAG_OBJECT_UUID);
-		if (!NT_STATUS_IS_OK(status)) {
-			return dcesrv_fault_disconnect(call,
-					DCERPC_NCA_S_PROTO_ERROR);
-		}
-
-		if (call->pkt.frag_length > DCERPC_FRAG_MAX_SIZE) {
-			/*
-			 * We don't use dcesrv_fault_disconnect()
-			 * here, because we don't want to set
-			 * DCERPC_PFC_FLAG_DID_NOT_EXECUTE
-			 *
-			 * Note that we don't check against the negotiated
-			 * max_recv_frag, but a hard coded value.
-			 */
-			dcesrv_call_disconnect_after(call,
-				"dcesrv_auth_request - frag_length too large");
-			return dcesrv_fault(call,
-					DCERPC_NCA_S_PROTO_ERROR);
-		}
-
-		if (call->pkt.pfc_flags & DCERPC_PFC_FLAG_FIRST) {
-			if (dce_conn->pending_call_list != NULL) {
-				/*
-				 * concurrent requests are only allowed
-				 * if DCERPC_PFC_FLAG_CONC_MPX was negotiated.
-				 */
-				if (!(dce_conn->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
-					dcesrv_call_disconnect_after(call,
-						"dcesrv_auth_request - "
-						"existing pending call without CONN_MPX");
-					return dcesrv_fault(call,
-						DCERPC_NCA_S_PROTO_ERROR);
-				}
-			}
-			/* only one request is possible in the fragmented list */
-			if (dce_conn->incoming_fragmented_call_list != NULL) {
-				if (!(dce_conn->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
-					/*
-					 * Without DCERPC_PFC_FLAG_CONC_MPX
-					 * we need to return the FAULT on the
-					 * already existing call.
-					 *
-					 * This is important to get the
-					 * call_id and context_id right.
-					 */
-					TALLOC_FREE(call);
-					call = dce_conn->incoming_fragmented_call_list;
-				}
-				dcesrv_call_disconnect_after(call,
-					"dcesrv_auth_request - "
-					"existing fragmented call");
-				return dcesrv_fault(call,
-						DCERPC_NCA_S_PROTO_ERROR);
-			}
-			if (call->pkt.pfc_flags & DCERPC_PFC_FLAG_PENDING_CANCEL) {
-				return dcesrv_fault_disconnect(call,
-						DCERPC_FAULT_NO_CALL_ACTIVE);
-			}
-			call->context = dcesrv_find_context(call->conn,
-						call->pkt.u.request.context_id);
-			if (call->context == NULL) {
-				return dcesrv_fault_with_flags(call, DCERPC_NCA_S_UNKNOWN_IF,
-					DCERPC_PFC_FLAG_DID_NOT_EXECUTE);
-			}
-		} else {
-			const struct dcerpc_request *nr = &call->pkt.u.request;
-			const struct dcerpc_request *er = NULL;
-			int cmp;
-
-			existing = dcesrv_find_fragmented_call(dce_conn,
-							call->pkt.call_id);
-			if (existing == NULL) {
-				dcesrv_call_disconnect_after(call,
-					"dcesrv_auth_request - "
-					"no existing fragmented call");
-				return dcesrv_fault(call,
-						DCERPC_NCA_S_PROTO_ERROR);
-			}
-			er = &existing->pkt.u.request;
-
-			if (call->pkt.ptype != existing->pkt.ptype) {
-				/* trying to play silly buggers are we? */
-				return dcesrv_fault_disconnect(existing,
-						DCERPC_NCA_S_PROTO_ERROR);
-			}
-			cmp = memcmp(call->pkt.drep, existing->pkt.drep,
-				     sizeof(pkt->drep));
-			if (cmp != 0) {
-				return dcesrv_fault_disconnect(existing,
-						DCERPC_NCA_S_PROTO_ERROR);
-			}
-			if (nr->context_id != er->context_id)  {
-				return dcesrv_fault_disconnect(existing,
-						DCERPC_NCA_S_PROTO_ERROR);
-			}
-			if (nr->opnum != er->opnum)  {
-				return dcesrv_fault_disconnect(existing,
-						DCERPC_NCA_S_PROTO_ERROR);
-			}
-		}
-	}
-
-	if (call->pkt.ptype == DCERPC_PKT_REQUEST) {
-		bool ok;
-		uint8_t payload_offset = DCERPC_REQUEST_LENGTH;
-
-		if (call->pkt.pfc_flags & DCERPC_PFC_FLAG_OBJECT_UUID) {
-			payload_offset += 16;
-		}
-
-		ok = dcesrv_auth_pkt_pull(call, &blob,
-					  0, /* required_flags */
-					  DCERPC_PFC_FLAG_FIRST |
-					  DCERPC_PFC_FLAG_LAST |
-					  DCERPC_PFC_FLAG_PENDING_CANCEL |
-					  0x08 | /* this is not defined, but should be ignored */
-					  DCERPC_PFC_FLAG_CONC_MPX |
-					  DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
-					  DCERPC_PFC_FLAG_MAYBE |
-					  DCERPC_PFC_FLAG_OBJECT_UUID,
-					  payload_offset,
-					  &call->pkt.u.request.stub_and_verifier);
-		if (!ok) {
-			/*
-			 * We don't use dcesrv_fault_disconnect()
-			 * here, because we don't want to set
-			 * DCERPC_PFC_FLAG_DID_NOT_EXECUTE
-			 */
-			dcesrv_call_disconnect_after(call,
-						"dcesrv_auth_request - failed");
-			if (call->fault_code == 0) {
-				call->fault_code = DCERPC_FAULT_ACCESS_DENIED;
-			}
-			return dcesrv_fault(call, call->fault_code);
-		}
-	}
-
-	/* see if this is a continued packet */
-	if (existing != NULL) {
-		struct dcerpc_request *er = &existing->pkt.u.request;
-		const struct dcerpc_request *nr = &call->pkt.u.request;
-		size_t available;
-		size_t alloc_size;
-		size_t alloc_hint;
-
-		/*
-		 * Up to 4 MByte are allowed by all fragments
-		 */
-		available = dce_conn->max_total_request_size;
-		if (er->stub_and_verifier.length > available) {
-			dcesrv_call_disconnect_after(existing,
-				"dcesrv_auth_request - existing payload too large");
-			return dcesrv_fault(existing, DCERPC_FAULT_ACCESS_DENIED);
-		}
-		available -= er->stub_and_verifier.length;
-		if (nr->alloc_hint > available) {
-			dcesrv_call_disconnect_after(existing,
-				"dcesrv_auth_request - alloc hint too large");
-			return dcesrv_fault(existing, DCERPC_FAULT_ACCESS_DENIED);
-		}
-		if (nr->stub_and_verifier.length > available) {
-			dcesrv_call_disconnect_after(existing,
-				"dcesrv_auth_request - new payload too large");
-			return dcesrv_fault(existing, DCERPC_FAULT_ACCESS_DENIED);
-		}
-		alloc_hint = er->stub_and_verifier.length + nr->alloc_hint;
-		/* allocate at least 1 byte */
-		alloc_hint = MAX(alloc_hint, 1);
-		alloc_size = er->stub_and_verifier.length +
-			     nr->stub_and_verifier.length;
-		alloc_size = MAX(alloc_size, alloc_hint);
-
-		er->stub_and_verifier.data =
-			talloc_realloc(existing,
-				       er->stub_and_verifier.data,
-				       uint8_t, alloc_size);
-		if (er->stub_and_verifier.data == NULL) {
-			TALLOC_FREE(call);
-			return dcesrv_fault_with_flags(existing,
-						       DCERPC_FAULT_OUT_OF_RESOURCES,
-						       DCERPC_PFC_FLAG_DID_NOT_EXECUTE);
-		}
-		memcpy(er->stub_and_verifier.data +
-		       er->stub_and_verifier.length,
-		       nr->stub_and_verifier.data,
-		       nr->stub_and_verifier.length);
-		er->stub_and_verifier.length += nr->stub_and_verifier.length;
-
-		existing->pkt.pfc_flags |= (call->pkt.pfc_flags & DCERPC_PFC_FLAG_LAST);
-
-		TALLOC_FREE(call);
-		call = existing;
-	}
-
-	/* this may not be the last pdu in the chain - if its isn't then
-	   just put it on the incoming_fragmented_call_list and wait for the rest */
-	if (call->pkt.ptype == DCERPC_PKT_REQUEST &&
-	    !(call->pkt.pfc_flags & DCERPC_PFC_FLAG_LAST)) {
-		/*
-		 * Up to 4 MByte are allowed by all fragments
-		 */
-		if (call->pkt.u.request.alloc_hint > dce_conn->max_total_request_size) {
-			dcesrv_call_disconnect_after(call,
-				"dcesrv_auth_request - initial alloc hint too large");
-			return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
-		}
-		dcesrv_call_set_list(call, DCESRV_LIST_FRAGMENTED_CALL_LIST);
-		return NT_STATUS_OK;
-	} 
-	
-	/* This removes any fragments we may have had stashed away */
-	dcesrv_call_set_list(call, DCESRV_LIST_NONE);
-
-	switch (call->pkt.ptype) {
-	case DCERPC_PKT_BIND:
-		status = dcesrv_bind_nak(call,
-			DCERPC_BIND_NAK_REASON_NOT_SPECIFIED);
-		break;
-	case DCERPC_PKT_AUTH3:
-		status = dcesrv_auth3(call);
-		break;
-	case DCERPC_PKT_ALTER:
-		status = dcesrv_alter(call);
-		break;
-	case DCERPC_PKT_REQUEST:
-		status = dcesrv_request(call);
-		break;
-	case DCERPC_PKT_CO_CANCEL:
-	case DCERPC_PKT_ORPHANED:
-		/*
-		 * Window just ignores CO_CANCEL and ORPHANED,
-		 * so we do...
-		 */
-		status = NT_STATUS_OK;
-		TALLOC_FREE(call);
-		break;
-	case DCERPC_PKT_BIND_ACK:
-	case DCERPC_PKT_BIND_NAK:
-	case DCERPC_PKT_ALTER_RESP:
-	case DCERPC_PKT_RESPONSE:
-	case DCERPC_PKT_FAULT:
-	case DCERPC_PKT_SHUTDOWN:
-	default:
-		status = dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
-		break;
-	}
-
-	/* if we are going to be sending a reply then add
-	   it to the list of pending calls. We add it to the end to keep the call
-	   list in the order we will answer */
-	if (!NT_STATUS_IS_OK(status)) {
-		talloc_free(call);
-	}
-
-	return status;
-}
-
-_PUBLIC_ NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
-				      struct loadparm_context *lp_ctx,
-				      const char **endpoint_servers,
-				      struct dcesrv_context_callbacks *cb,
-				      struct dcesrv_context **_dce_ctx)
-{
-	NTSTATUS status;
-	struct dcesrv_context *dce_ctx;
-	int i;
-
-	if (!endpoint_servers) {
-		DEBUG(0,("dcesrv_init_context: no endpoint servers configured\n"));
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-
-	dce_ctx = talloc_zero(mem_ctx, struct dcesrv_context);
-	NT_STATUS_HAVE_NO_MEMORY(dce_ctx);
-
-	if (uid_wrapper_enabled()) {
-		setenv("UID_WRAPPER_MYUID", "1", 1);
-	}
-	dce_ctx->initial_euid = geteuid();
-	if (uid_wrapper_enabled()) {
-		unsetenv("UID_WRAPPER_MYUID");
-	}
-
-	dce_ctx->endpoint_list	= NULL;
-	dce_ctx->lp_ctx = lp_ctx;
-	dce_ctx->assoc_groups_idr = idr_init(dce_ctx);
-	NT_STATUS_HAVE_NO_MEMORY(dce_ctx->assoc_groups_idr);
-	dce_ctx->broken_connections = NULL;
-	if (cb != NULL) {
-		dce_ctx->callbacks = *cb;
-	}
-
-	for (i=0;endpoint_servers[i];i++) {
-		const struct dcesrv_endpoint_server *ep_server;
-
-		ep_server = dcesrv_ep_server_byname(endpoint_servers[i]);
-		if (!ep_server) {
-			DEBUG(0,("dcesrv_init_context: failed to find endpoint server = '%s'\n", endpoint_servers[i]));
-			return NT_STATUS_INTERNAL_ERROR;
-		}
-
-		status = ep_server->init_server(dce_ctx, ep_server);
-		if (!NT_STATUS_IS_OK(status)) {
-			DEBUG(0,("dcesrv_init_context: failed to init endpoint server = '%s': %s\n", endpoint_servers[i],
-				nt_errstr(status)));
-			return status;
-		}
-	}
-
-	*_dce_ctx = dce_ctx;
-	return NT_STATUS_OK;
-}
-
-/* the list of currently registered DCERPC endpoint servers.
- */
-static struct ep_server {
-	struct dcesrv_endpoint_server *ep_server;
-} *ep_servers = NULL;
-static int num_ep_servers;
-
-/*
-  register a DCERPC endpoint server. 
-
-  The 'name' can be later used by other backends to find the operations
-  structure for this backend.  
-
-*/
-_PUBLIC_ NTSTATUS dcerpc_register_ep_server(const struct dcesrv_endpoint_server *ep_server)
-{
-	
-	if (dcesrv_ep_server_byname(ep_server->name) != NULL) {
-		/* its already registered! */
-		DEBUG(0,("DCERPC endpoint server '%s' already registered\n", 
-			 ep_server->name));
-		return NT_STATUS_OBJECT_NAME_COLLISION;
-	}
-
-	ep_servers = realloc_p(ep_servers, struct ep_server, num_ep_servers+1);
-	if (!ep_servers) {
-		smb_panic("out of memory in dcerpc_register");
-	}
-
-	ep_servers[num_ep_servers].ep_server = smb_xmemdup(ep_server, sizeof(*ep_server));
-	ep_servers[num_ep_servers].ep_server->name = smb_xstrdup(ep_server->name);
-
-	num_ep_servers++;
-
-	DEBUG(3,("DCERPC endpoint server '%s' registered\n", 
-		 ep_server->name));
-
-	return NT_STATUS_OK;
-}
-
-/*
-  return the operations structure for a named backend of the specified type
-*/
-_PUBLIC_ const struct dcesrv_endpoint_server *dcesrv_ep_server_byname(const char *name)
-{
-	int i;
-
-	for (i=0;i<num_ep_servers;i++) {
-		if (strcmp(ep_servers[i].ep_server->name, name) == 0) {
-			return ep_servers[i].ep_server;
-		}
-	}
-
-	return NULL;
-}
-
 void dcerpc_server_init(struct loadparm_context *lp_ctx)
 {
 	static bool initialized;
@@ -2543,245 +183,6 @@ void dcerpc_server_init(struct loadparm_context *lp_ctx)
 	talloc_free(shared_init);
 }
 
-/*
-  return the DCERPC module version, and the size of some critical types
-  This can be used by endpoint server modules to either detect compilation errors, or provide
-  multiple implementations for different smbd compilation options in one module
-*/
-const struct dcesrv_critical_sizes *dcerpc_module_version(void)
-{
-	static const struct dcesrv_critical_sizes critical_sizes = {
-		DCERPC_MODULE_VERSION,
-		sizeof(struct dcesrv_context),
-		sizeof(struct dcesrv_endpoint),
-		sizeof(struct dcesrv_endpoint_server),
-		sizeof(struct dcesrv_interface),
-		sizeof(struct dcesrv_if_list),
-		sizeof(struct dcesrv_connection),
-		sizeof(struct dcesrv_call_state),
-		sizeof(struct dcesrv_auth),
-		sizeof(struct dcesrv_handle)
-	};
-
-	return &critical_sizes;
-}
-
-_PUBLIC_ void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
-{
-	struct dcesrv_context *dce_ctx = dce_conn->dce_ctx;
-	struct dcesrv_auth *a = NULL;
-
-	dce_conn->wait_send = NULL;
-	dce_conn->wait_recv = NULL;
-	dce_conn->wait_private = NULL;
-
-	dce_conn->allow_bind = false;
-	dce_conn->allow_alter = false;
-
-	dce_conn->default_auth_state->auth_invalid = true;
-
-	for (a = dce_conn->auth_states; a != NULL; a = a->next) {
-		a->auth_invalid = true;
-	}
-
-	if (dce_conn->pending_call_list == NULL) {
-		char *full_reason = talloc_asprintf(dce_conn, "dcesrv: %s", reason);
-
-		DLIST_REMOVE(dce_ctx->broken_connections, dce_conn);
-		dce_conn->transport.terminate_connection(dce_conn,
-					full_reason ? full_reason : reason);
-		return;
-	}
-
-	if (dce_conn->terminate != NULL) {
-		return;
-	}
-
-	DEBUG(3,("dcesrv: terminating connection due to '%s' deferred due to pending calls\n",
-		 reason));
-	dce_conn->terminate = talloc_strdup(dce_conn, reason);
-	if (dce_conn->terminate == NULL) {
-		dce_conn->terminate = "dcesrv: deferred terminating connection - no memory";
-	}
-	DLIST_ADD_END(dce_ctx->broken_connections, dce_conn);
-}
-
-_PUBLIC_ void dcesrv_cleanup_broken_connections(struct dcesrv_context *dce_ctx)
-{
-	struct dcesrv_connection *cur, *next;
-
-	next = dce_ctx->broken_connections;
-	while (next != NULL) {
-		cur = next;
-		next = cur->next;
-
-		if (cur->state_flags & DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL) {
-			struct dcesrv_connection_context *context_cur, *context_next;
-
-			context_next = cur->contexts;
-			while (context_next != NULL) {
-				context_cur = context_next;
-				context_next = context_cur->next;
-
-				dcesrv_connection_context_destructor(context_cur);
-			}
-		}
-
-		dcesrv_terminate_connection(cur, cur->terminate);
-	}
-}
-
-/* We need this include to be able to compile on some plateforms
- * (ie. freebsd 7.2) as it seems that <sys/uio.h> is not included
- * correctly.
- * It has to be that deep because otherwise we have a conflict on
- * const struct dcesrv_interface declaration.
- * This is mostly due to socket_wrapper defining #define bind swrap_bind
- * which conflict with the bind used before.
- */
-#include "system/network.h"
-
-struct dcesrv_sock_reply_state {
-	struct dcesrv_connection *dce_conn;
-	struct dcesrv_call_state *call;
-	struct iovec iov;
-};
-
-static void dcesrv_sock_reply_done(struct tevent_req *subreq);
-static void dcesrv_call_terminate_step1(struct tevent_req *subreq);
-
-_PUBLIC_ void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn)
-{
-	struct dcesrv_call_state *call;
-
-	call = dce_conn->call_list;
-	if (!call || !call->replies) {
-		return;
-	}
-
-	while (call->replies) {
-		struct data_blob_list_item *rep = call->replies;
-		struct dcesrv_sock_reply_state *substate;
-		struct tevent_req *subreq;
-
-		substate = talloc_zero(call, struct dcesrv_sock_reply_state);
-		if (!substate) {
-			dcesrv_terminate_connection(dce_conn, "no memory");
-			return;
-		}
-
-		substate->dce_conn = dce_conn;
-		substate->call = NULL;
-
-		DLIST_REMOVE(call->replies, rep);
-
-		if (call->replies == NULL && call->terminate_reason == NULL) {
-			substate->call = call;
-		}
-
-		substate->iov.iov_base = (void *) rep->blob.data;
-		substate->iov.iov_len = rep->blob.length;
-
-		subreq = tstream_writev_queue_send(substate,
-						   dce_conn->event_ctx,
-						   dce_conn->stream,
-						   dce_conn->send_queue,
-						   &substate->iov, 1);
-		if (!subreq) {
-			dcesrv_terminate_connection(dce_conn, "no memory");
-			return;
-		}
-		tevent_req_set_callback(subreq, dcesrv_sock_reply_done,
-					substate);
-	}
-
-	if (call->terminate_reason != NULL) {
-		struct tevent_req *subreq;
-
-		subreq = tevent_queue_wait_send(call,
-						dce_conn->event_ctx,
-						dce_conn->send_queue);
-		if (!subreq) {
-			dcesrv_terminate_connection(dce_conn, __location__);
-			return;
-		}
-		tevent_req_set_callback(subreq, dcesrv_call_terminate_step1,
-					call);
-	}
-
-	DLIST_REMOVE(call->conn->call_list, call);
-	call->list = DCESRV_LIST_NONE;
-}
-
-static void dcesrv_sock_reply_done(struct tevent_req *subreq)
-{
-	struct dcesrv_sock_reply_state *substate = tevent_req_callback_data(subreq,
-						struct dcesrv_sock_reply_state);
-	int ret;
-	int sys_errno;
-	NTSTATUS status;
-	struct dcesrv_call_state *call = substate->call;
-
-	ret = tstream_writev_queue_recv(subreq, &sys_errno);
-	TALLOC_FREE(subreq);
-	if (ret == -1) {
-		status = map_nt_error_from_unix_common(sys_errno);
-		dcesrv_terminate_connection(substate->dce_conn, nt_errstr(status));
-		return;
-	}
-
-	talloc_free(substate);
-	if (call) {
-		talloc_free(call);
-	}
-}
-
-static void dcesrv_call_terminate_step2(struct tevent_req *subreq);
-
-static void dcesrv_call_terminate_step1(struct tevent_req *subreq)
-{
-	struct dcesrv_call_state *call = tevent_req_callback_data(subreq,
-						struct dcesrv_call_state);
-	bool ok;
-	struct timeval tv;
-
-	/* make sure we stop send queue before removing subreq */
-	tevent_queue_stop(call->conn->send_queue);
-
-	ok = tevent_queue_wait_recv(subreq);
-	TALLOC_FREE(subreq);
-	if (!ok) {
-		dcesrv_terminate_connection(call->conn, __location__);
-		return;
-	}
-
-	/* disconnect after 200 usecs */
-	tv = timeval_current_ofs_usec(200);
-	subreq = tevent_wakeup_send(call, call->conn->event_ctx, tv);
-	if (subreq == NULL) {
-		dcesrv_terminate_connection(call->conn, __location__);
-		return;
-	}
-	tevent_req_set_callback(subreq, dcesrv_call_terminate_step2,
-				call);
-}
-
-static void dcesrv_call_terminate_step2(struct tevent_req *subreq)
-{
-	struct dcesrv_call_state *call = tevent_req_callback_data(subreq,
-						struct dcesrv_call_state);
-	bool ok;
-
-	ok = tevent_wakeup_recv(subreq);
-	TALLOC_FREE(subreq);
-	if (!ok) {
-		dcesrv_terminate_connection(call->conn, __location__);
-		return;
-	}
-
-	dcesrv_terminate_connection(call->conn, call->terminate_reason);
-}
-
 struct dcesrv_socket_context {
 	const struct dcesrv_endpoint *endpoint;
 	struct dcesrv_context *dcesrv_ctx;
@@ -2921,107 +322,6 @@ static void dcesrv_sock_accept(struct stream_connection *srv_conn)
 	return;
 }
 
-static void dcesrv_conn_wait_done(struct tevent_req *subreq);
-
-static void dcesrv_read_fragment_done(struct tevent_req *subreq)
-{
-	struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
-					     struct dcesrv_connection);
-	struct dcesrv_context *dce_ctx = dce_conn->dce_ctx;
-	struct ncacn_packet *pkt;
-	DATA_BLOB buffer;
-	NTSTATUS status;
-
-	if (dce_conn->terminate) {
-		/*
-		 * if the current connection is broken
-		 * we need to clean it up before any other connection
-		 */
-		dcesrv_terminate_connection(dce_conn, dce_conn->terminate);
-		dcesrv_cleanup_broken_connections(dce_ctx);
-		return;
-	}
-
-	dcesrv_cleanup_broken_connections(dce_ctx);
-
-	status = dcerpc_read_ncacn_packet_recv(subreq, dce_conn,
-					       &pkt, &buffer);
-	TALLOC_FREE(subreq);
-	if (!NT_STATUS_IS_OK(status)) {
-		dcesrv_terminate_connection(dce_conn, nt_errstr(status));
-		return;
-	}
-
-	status = dcesrv_process_ncacn_packet(dce_conn, pkt, buffer);
-	if (!NT_STATUS_IS_OK(status)) {
-		dcesrv_terminate_connection(dce_conn, nt_errstr(status));
-		return;
-	}
-
-	/*
-	 * This is used to block the connection during
-	 * pending authentication.
-	 */
-	if (dce_conn->wait_send != NULL) {
-		subreq = dce_conn->wait_send(dce_conn,
-					     dce_conn->event_ctx,
-					     dce_conn->wait_private);
-		if (!subreq) {
-			status = NT_STATUS_NO_MEMORY;
-			dcesrv_terminate_connection(dce_conn, nt_errstr(status));
-			return;
-		}
-		tevent_req_set_callback(subreq, dcesrv_conn_wait_done, dce_conn);
-		return;
-	}
-
-	subreq = dcerpc_read_ncacn_packet_send(dce_conn,
-					       dce_conn->event_ctx,
-					       dce_conn->stream);
-	if (!subreq) {
-		status = NT_STATUS_NO_MEMORY;
-		dcesrv_terminate_connection(dce_conn, nt_errstr(status));
-		return;
-	}
-	tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dce_conn);
-}
-
-static void dcesrv_conn_wait_done(struct tevent_req *subreq)
-{
-	struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
-					     struct dcesrv_connection);
-	struct dcesrv_context *dce_ctx = dce_conn->dce_ctx;
-	NTSTATUS status;
-
-	if (dce_conn->terminate) {
-		/*
-		 * if the current connection is broken
-		 * we need to clean it up before any other connection
-		 */
-		dcesrv_terminate_connection(dce_conn, dce_conn->terminate);
-		dcesrv_cleanup_broken_connections(dce_ctx);
-		return;
-	}
-
-	dcesrv_cleanup_broken_connections(dce_ctx);
-
-	status = dce_conn->wait_recv(subreq);
-	dce_conn->wait_send = NULL;
-	dce_conn->wait_recv = NULL;
-	dce_conn->wait_private = NULL;
-	TALLOC_FREE(subreq);
-	if (!NT_STATUS_IS_OK(status)) {
-		dcesrv_terminate_connection(dce_conn, nt_errstr(status));
-		return;
-	}
-
-	status = dcesrv_connection_loop_start(dce_conn);
-	if (!NT_STATUS_IS_OK(status)) {
-		dcesrv_terminate_connection(dce_conn, nt_errstr(status));
-		return;
-	}
-}
-
 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
 {
 	struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
@@ -3318,68 +618,6 @@ NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
 	}
 }
 
-
-/**
- * retrieve credentials from a dce_call
- */
-_PUBLIC_ struct cli_credentials *dcesrv_call_credentials(struct dcesrv_call_state *dce_call)
-{
-	struct dcesrv_auth *auth = dce_call->auth_state;
-	SMB_ASSERT(auth->auth_finished);
-	return auth->session_info->credentials;
-}
-
-/**
- * returns true if this is an authenticated call
- */
-_PUBLIC_ bool dcesrv_call_authenticated(struct dcesrv_call_state *dce_call)
-{
-	struct dcesrv_auth *auth = dce_call->auth_state;
-	enum security_user_level level;
-	SMB_ASSERT(auth->auth_finished);
-	level = security_session_user_level(auth->session_info, NULL);
-	return level >= SECURITY_USER;
-}
-
-/**
- * retrieve account_name for a dce_call
- */
-_PUBLIC_ const char *dcesrv_call_account_name(struct dcesrv_call_state *dce_call)
-{
-	struct dcesrv_auth *auth = dce_call->auth_state;
-	SMB_ASSERT(auth->auth_finished);
-	return auth->session_info->info->account_name;
-}
-
-/**
- * retrieve session_info from a dce_call
- */
-_PUBLIC_ struct auth_session_info *dcesrv_call_session_info(struct dcesrv_call_state *dce_call)
-{
-	struct dcesrv_auth *auth = dce_call->auth_state;
-	SMB_ASSERT(auth->auth_finished);
-	return auth->session_info;
-}
-
-/**
- * retrieve auth type/level from a dce_call
- */
-_PUBLIC_ void dcesrv_call_auth_info(struct dcesrv_call_state *dce_call,
-				    enum dcerpc_AuthType *auth_type,
-				    enum dcerpc_AuthLevel *auth_level)
-{
-	struct dcesrv_auth *auth = dce_call->auth_state;
-
-	SMB_ASSERT(auth->auth_finished);
-
-	if (auth_type != NULL) {
-		*auth_type = auth->auth_type;
-	}
-	if (auth_level != NULL) {
-		*auth_level = auth->auth_level;
-	}
-}
-
 _PUBLIC_ struct imessaging_context *dcesrv_imessaging_context(
 					struct dcesrv_connection *conn)
 {
@@ -3471,18 +709,3 @@ void dcesrv_transport_terminate_connection(struct dcesrv_connection *dce_conn,
 				      struct stream_connection);
 	stream_terminate_connection(srv_conn, reason);
 }
-
-_PUBLIC_ NTSTATUS dcesrv_connection_loop_start(struct dcesrv_connection *conn)
-{
-	struct tevent_req *subreq;
-
-	subreq = dcerpc_read_ncacn_packet_send(conn,
-					       conn->event_ctx,
-					       conn->stream);
-	if (subreq == NULL) {
-		return NT_STATUS_NO_MEMORY;
-	}
-	tevent_req_set_callback(subreq, dcesrv_read_fragment_done, conn);
-
-	return NT_STATUS_OK;
-}
diff --git a/source4/rpc_server/dcesrv_auth.c b/source4/rpc_server/dcesrv_auth.c
deleted file mode 100644
index 87bc76d2780..00000000000
--- a/source4/rpc_server/dcesrv_auth.c
+++ /dev/null
@@ -1,664 +0,0 @@
-/* 
-   Unix SMB/CIFS implementation.
-
-   server side dcerpc authentication code
-
-   Copyright (C) Andrew Tridgell 2003
-   Copyright (C) Stefan (metze) Metzmacher 2004
-
-   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/>.
-*/
-
-#include "includes.h"
-#include "rpc_server/dcerpc_server.h"
-#include "rpc_server/dcerpc_server_proto.h"
-#include "librpc/gen_ndr/ndr_dcerpc.h"
-#include "auth/credentials/credentials.h"
-#include "auth/gensec/gensec.h"
-#include "auth/auth.h"
-#include "param/param.h"
-#include "librpc/rpc/rpc_common.h"
-
-static NTSTATUS dcesrv_auth_negotiate_hdr_signing(struct dcesrv_call_state *call,
-						  struct ncacn_packet *pkt)
-{
-	struct dcesrv_connection *dce_conn = call->conn;
-	struct dcesrv_auth *a = NULL;
-
-	if (!(call->pkt.pfc_flags & DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN)) {
-		return NT_STATUS_OK;
-	}
-
-	if (dce_conn->client_hdr_signing) {
-		if (dce_conn->negotiated_hdr_signing && pkt != NULL) {
-			pkt->pfc_flags |= DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN;
-		}
-		return NT_STATUS_OK;
-	}
-
-	dce_conn->client_hdr_signing = true;
-	dce_conn->negotiated_hdr_signing = dce_conn->support_hdr_signing;
-
-	if (!dce_conn->negotiated_hdr_signing) {
-		return NT_STATUS_OK;
-	}
-
-	if (pkt != NULL) {
-		pkt->pfc_flags |= DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN;
-	}
-
-	a = call->conn->default_auth_state;
-	if (a->gensec_security != NULL) {
-		gensec_want_feature(a->gensec_security,
-				    GENSEC_FEATURE_SIGN_PKT_HEADER);
-	}
-
-	for (a = call->conn->auth_states; a != NULL; a = a->next) {
-		if (a->gensec_security == NULL) {
-			continue;
-		}
-
-		gensec_want_feature(a->gensec_security,
-				    GENSEC_FEATURE_SIGN_PKT_HEADER);
-	}
-
-	return NT_STATUS_OK;
-}
-
-static bool dcesrv_auth_prepare_gensec(struct dcesrv_call_state *call)
-{
-	struct dcesrv_connection *dce_conn = call->conn;
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	if (auth->auth_started) {
-		return false;
-	}
-
-	auth->auth_started = true;
-
-	if (auth->auth_invalid) {
-		return false;
-	}
-
-	if (auth->auth_finished) {
-		return false;
-	}
-
-	if (auth->gensec_security != NULL) {
-		return false;
-	}
-
-	switch (call->in_auth_info.auth_level) {
-	case DCERPC_AUTH_LEVEL_CONNECT:
-	case DCERPC_AUTH_LEVEL_CALL:
-	case DCERPC_AUTH_LEVEL_PACKET:
-	case DCERPC_AUTH_LEVEL_INTEGRITY:
-	case DCERPC_AUTH_LEVEL_PRIVACY:
-		/*
-		 * We evaluate auth_type only if auth_level was valid
-		 */
-		break;
-	default:
-		/*
-		 * Setting DCERPC_AUTH_LEVEL_NONE,
-		 * gives the caller the reject_reason
-		 * as auth_context_id.
-		 *
-		 * Note: DCERPC_AUTH_LEVEL_NONE == 1
-		 */
-		auth->auth_type = DCERPC_AUTH_TYPE_NONE;
-		auth->auth_level = DCERPC_AUTH_LEVEL_NONE;
-		auth->auth_context_id = DCERPC_BIND_NAK_REASON_NOT_SPECIFIED;
-		return false;
-	}
-
-	auth->auth_type = call->in_auth_info.auth_type;
-	auth->auth_level = call->in_auth_info.auth_level;
-	auth->auth_context_id = call->in_auth_info.auth_context_id;
-
-	status = call->conn->dce_ctx->callbacks.auth.gensec_prepare(auth,
-						call,
-						&auth->gensec_security);
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(1, ("Failed to call samba_server_gensec_start %s\n",
-			  nt_errstr(status)));
-		return false;
-	}
-
-	/*
-	 * We have to call this because we set the target_service for
-	 * Kerberos to NULL above, and in any case we wish to log a
-	 * more specific service target.
-	 *
-	 */
-	status = gensec_set_target_service_description(auth->gensec_security,
-						       "DCE/RPC");
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(1, ("Failed to call gensec_set_target_service_description %s\n",
-			  nt_errstr(status)));
-		return false;
-	}
-
-	if (call->conn->remote_address != NULL) {
-		status = gensec_set_remote_address(auth->gensec_security,
-						call->conn->remote_address);
-		if (!NT_STATUS_IS_OK(status)) {
-			DEBUG(1, ("Failed to call gensec_set_remote_address() %s\n",
-				  nt_errstr(status)));
-			return false;
-		}
-	}
-
-	if (call->conn->local_address != NULL) {
-		status = gensec_set_local_address(auth->gensec_security,
-						  call->conn->local_address);
-		if (!NT_STATUS_IS_OK(status)) {
-			DEBUG(1, ("Failed to call gensec_set_local_address() %s\n",
-				  nt_errstr(status)));
-			return false;
-		}
-	}
-
-	status = gensec_start_mech_by_authtype(auth->gensec_security, auth->auth_type,
-					       auth->auth_level);
-	if (!NT_STATUS_IS_OK(status)) {
-		const char *backend_name =
-			gensec_get_name_by_authtype(auth->gensec_security,
-						    auth->auth_type);
-
-		DEBUG(3, ("Failed to start GENSEC mechanism for DCERPC server: "
-			  "auth_type=%d (%s), auth_level=%d: %s\n",
-			  (int)auth->auth_type, backend_name,
-			  (int)auth->auth_level,
-			  nt_errstr(status)));
-
-		/*
-		 * Setting DCERPC_AUTH_LEVEL_NONE,
-		 * gives the caller the reject_reason
-		 * as auth_context_id.
-		 *
-		 * Note: DCERPC_AUTH_LEVEL_NONE == 1
-		 */
-		auth->auth_type = DCERPC_AUTH_TYPE_NONE;
-		auth->auth_level = DCERPC_AUTH_LEVEL_NONE;
-		if (backend_name != NULL) {
-			auth->auth_context_id =
-				DCERPC_BIND_NAK_REASON_INVALID_CHECKSUM;
-		} else {
-			auth->auth_context_id =
-				DCERPC_BIND_NAK_REASON_INVALID_AUTH_TYPE;
-		}
-		return false;
-	}
-
-	if (dce_conn->negotiated_hdr_signing) {
-		gensec_want_feature(auth->gensec_security,
-				    GENSEC_FEATURE_SIGN_PKT_HEADER);
-	}
-
-	return true;
-}
-
-static void dcesrv_default_auth_state_finish_bind(struct dcesrv_call_state *call)
-{
-	SMB_ASSERT(call->pkt.ptype == DCERPC_PKT_BIND);
-
-	if (call->auth_state == call->conn->default_auth_state) {
-		return;
-	}
-
-	if (call->conn->default_auth_state->auth_started) {
-		return;
-	}
-
-	if (call->conn->default_auth_state->auth_invalid) {
-		return;
-	}
-
-	call->conn->default_auth_state->auth_type = DCERPC_AUTH_TYPE_NONE;
-	call->conn->default_auth_state->auth_level = DCERPC_AUTH_LEVEL_NONE;
-	call->conn->default_auth_state->auth_context_id = 0;
-	call->conn->default_auth_state->auth_started = true;
-	call->conn->default_auth_state->auth_finished = true;
-
-	/*
-	 *
-	 * We defer log_successful_dcesrv_authz_event()
-	 * to dcesrv_default_auth_state_prepare_request()
-	 *
-	 * As we don't want to trigger authz_events
-	 * just for alter_context requests without authentication
-	 */
-}
-
-void dcesrv_default_auth_state_prepare_request(struct dcesrv_call_state *call)
-{
-	struct dcesrv_connection *dce_conn = call->conn;
-	struct dcesrv_auth *auth = call->auth_state;
-
-	if (auth->auth_audited) {
-		return;
-	}
-
-	if (call->pkt.ptype != DCERPC_PKT_REQUEST) {
-		return;
-	}
-
-	if (auth != dce_conn->default_auth_state) {
-		return;
-	}
-
-	if (auth->auth_invalid) {
-		return;
-	}
-
-	if (!auth->auth_finished) {
-		return;
-	}
-
-	if (!call->conn->dce_ctx->callbacks.log.successful_authz) {
-		return;
-	}
-
-	call->conn->dce_ctx->callbacks.log.successful_authz(call);
-}
-
-/*
-  parse any auth information from a dcerpc bind request
-  return false if we can't handle the auth request for some
-  reason (in which case we send a bind_nak)
-*/
-bool dcesrv_auth_bind(struct dcesrv_call_state *call)
-{
-	struct ncacn_packet *pkt = &call->pkt;
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	if (pkt->auth_length == 0) {
-		auth->auth_type = DCERPC_AUTH_TYPE_NONE;
-		auth->auth_level = DCERPC_AUTH_LEVEL_NONE;
-		auth->auth_context_id = 0;
-		auth->auth_started = true;
-
-		if (call->conn->dce_ctx->callbacks.log.successful_authz) {
-			call->conn->dce_ctx->callbacks.log.successful_authz(call);
-		}
-
-		return true;
-	}
-
-	status = dcerpc_pull_auth_trailer(pkt, call, &pkt->u.bind.auth_info,
-					  &call->in_auth_info,
-					  NULL, true);
-	if (!NT_STATUS_IS_OK(status)) {
-		/*
-		 * Setting DCERPC_AUTH_LEVEL_NONE,
-		 * gives the caller the reject_reason
-		 * as auth_context_id.
-		 *
-		 * Note: DCERPC_AUTH_LEVEL_NONE == 1
-		 */
-		auth->auth_type = DCERPC_AUTH_TYPE_NONE;
-		auth->auth_level = DCERPC_AUTH_LEVEL_NONE;
-		auth->auth_context_id =
-			DCERPC_BIND_NAK_REASON_PROTOCOL_VERSION_NOT_SUPPORTED;
-		return false;
-	}
-
-	return dcesrv_auth_prepare_gensec(call);
-}
-
-NTSTATUS dcesrv_auth_complete(struct dcesrv_call_state *call, NTSTATUS status)
-{
-	struct dcesrv_auth *auth = call->auth_state;
-	const char *pdu = "<unknown>";
-
-	switch (call->pkt.ptype) {
-	case DCERPC_PKT_BIND:
-		pdu = "BIND";
-		break;
-	case DCERPC_PKT_ALTER:
-		pdu = "ALTER";
-		break;
-	case DCERPC_PKT_AUTH3:
-		pdu = "AUTH3";
-		if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
-			DEBUG(4, ("GENSEC not finished at at %s\n", pdu));
-			return NT_STATUS_RPC_SEC_PKG_ERROR;
-		}
-		break;
-	default:
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-
-	if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
-		return NT_STATUS_OK;
-	}
-
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(4, ("GENSEC mech rejected the incoming authentication "
-			  "at %s: %s\n", pdu, nt_errstr(status)));
-		return status;
-	}
-
-	status = gensec_session_info(auth->gensec_security,
-				     auth,
-				     &auth->session_info);
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(1, ("Failed to establish session_info: %s\n",
-			  nt_errstr(status)));
-		return status;
-	}
-	auth->auth_finished = true;
-
-	if (auth->auth_level == DCERPC_AUTH_LEVEL_CONNECT &&
-	    !call->conn->got_explicit_auth_level_connect)
-	{
-		call->conn->default_auth_level_connect = auth;
-	}
-
-	if (call->pkt.ptype != DCERPC_PKT_AUTH3) {
-		return NT_STATUS_OK;
-	}
-
-	if (call->out_auth_info->credentials.length != 0) {
-		DEBUG(4, ("GENSEC produced output token (len=%zu) at %s\n",
-			  call->out_auth_info->credentials.length, pdu));
-		return NT_STATUS_RPC_SEC_PKG_ERROR;
-	}
-
-	return NT_STATUS_OK;
-}
-
-/*
-  add any auth information needed in a bind ack, and process the authentication
-  information found in the bind.
-*/
-NTSTATUS dcesrv_auth_prepare_bind_ack(struct dcesrv_call_state *call, struct ncacn_packet *pkt)
-{
-	struct dcesrv_connection *dce_conn = call->conn;
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	status = dcesrv_auth_negotiate_hdr_signing(call, pkt);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	dce_conn->allow_alter = true;
-	dcesrv_default_auth_state_finish_bind(call);
-
-	if (call->pkt.auth_length == 0) {
-		auth->auth_finished = true;
-		return NT_STATUS_OK;
-	}
-
-	/* We can't work without an existing gensec state */
-	if (auth->gensec_security == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-
-	call->_out_auth_info = (struct dcerpc_auth) {
-		.auth_type = auth->auth_type,
-		.auth_level = auth->auth_level,
-		.auth_context_id = auth->auth_context_id,
-	};
-	call->out_auth_info = &call->_out_auth_info;
-
-	return NT_STATUS_OK;
-}
-
-/*
-  process the final stage of a auth request
-*/
-bool dcesrv_auth_prepare_auth3(struct dcesrv_call_state *call)
-{
-	struct ncacn_packet *pkt = &call->pkt;
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	if (pkt->auth_length == 0) {
-		return false;
-	}
-
-	if (auth->auth_finished) {
-		return false;
-	}
-
-	/* We can't work without an existing gensec state */
-	if (auth->gensec_security == NULL) {
-		return false;
-	}
-
-	status = dcerpc_pull_auth_trailer(pkt, call, &pkt->u.auth3.auth_info,
-					  &call->in_auth_info, NULL, true);
-	if (!NT_STATUS_IS_OK(status)) {
-		/*
-		 * Windows returns DCERPC_NCA_S_FAULT_REMOTE_NO_MEMORY
-		 * instead of DCERPC_NCA_S_PROTO_ERROR.
-		 */
-		call->fault_code = DCERPC_NCA_S_FAULT_REMOTE_NO_MEMORY;
-		return false;
-	}
-
-	if (call->in_auth_info.auth_type != auth->auth_type) {
-		return false;
-	}
-
-	if (call->in_auth_info.auth_level != auth->auth_level) {
-		return false;
-	}
-
-	if (call->in_auth_info.auth_context_id != auth->auth_context_id) {
-		return false;
-	}
-
-	call->_out_auth_info = (struct dcerpc_auth) {
-		.auth_type = auth->auth_type,
-		.auth_level = auth->auth_level,
-		.auth_context_id = auth->auth_context_id,
-	};
-	call->out_auth_info = &call->_out_auth_info;
-
-	return true;
-}
-
-/*
-  parse any auth information from a dcerpc alter request
-  return false if we can't handle the auth request for some 
-  reason (in which case we send a bind_nak (is this true for here?))
-*/
-bool dcesrv_auth_alter(struct dcesrv_call_state *call)
-{
-	struct ncacn_packet *pkt = &call->pkt;
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	/* on a pure interface change there is no auth blob */
-	if (pkt->auth_length == 0) {
-		if (!auth->auth_finished) {
-			return false;
-		}
-		return true;
-	}
-
-	if (auth->auth_finished) {
-		call->fault_code = DCERPC_FAULT_ACCESS_DENIED;
-		return false;
-	}
-
-	status = dcerpc_pull_auth_trailer(pkt, call, &pkt->u.alter.auth_info,
-					  &call->in_auth_info, NULL, true);
-	if (!NT_STATUS_IS_OK(status)) {
-		call->fault_code = DCERPC_NCA_S_PROTO_ERROR;
-		return false;
-	}
-
-	if (!auth->auth_started) {
-		bool ok;
-
-		ok = dcesrv_auth_prepare_gensec(call);
-		if (!ok) {
-			call->fault_code = DCERPC_FAULT_ACCESS_DENIED;
-			return false;
-		}
-
-		return true;
-	}
-
-	if (call->in_auth_info.auth_type == DCERPC_AUTH_TYPE_NONE) {
-		call->fault_code = DCERPC_FAULT_ACCESS_DENIED;
-		return false;
-	}
-
-	if (call->in_auth_info.auth_type != auth->auth_type) {
-		return false;
-	}
-
-	if (call->in_auth_info.auth_level != auth->auth_level) {
-		return false;
-	}
-
-	if (call->in_auth_info.auth_context_id != auth->auth_context_id) {
-		return false;
-	}
-
-	return true;
-}
-
-/*
-  add any auth information needed in a alter ack, and process the authentication
-  information found in the alter.
-*/
-NTSTATUS dcesrv_auth_prepare_alter_ack(struct dcesrv_call_state *call, struct ncacn_packet *pkt)
-{
-	struct dcesrv_auth *auth = call->auth_state;
-	NTSTATUS status;
-
-	status = dcesrv_auth_negotiate_hdr_signing(call, pkt);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	/* on a pure interface change there is no auth_info structure
-	   setup */
-	if (call->pkt.auth_length == 0) {
-		return NT_STATUS_OK;
-	}
-
-	if (auth->gensec_security == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-
-	call->_out_auth_info = (struct dcerpc_auth) {
-		.auth_type = auth->auth_type,
-		.auth_level = auth->auth_level,
-		.auth_context_id = auth->auth_context_id,
-	};
-	call->out_auth_info = &call->_out_auth_info;
-
-	return NT_STATUS_OK;
-}
-
-/*
-  check credentials on a packet
-*/
-bool dcesrv_auth_pkt_pull(struct dcesrv_call_state *call,
-			  DATA_BLOB *full_packet,
-			  uint8_t required_flags,
-			  uint8_t optional_flags,
-			  uint8_t payload_offset,
-			  DATA_BLOB *payload_and_verifier)
-{
-	struct ncacn_packet *pkt = &call->pkt;
-	struct dcesrv_auth *auth = call->auth_state;
-	const struct dcerpc_auth tmp_auth = {
-		.auth_type = auth->auth_type,
-		.auth_level = auth->auth_level,
-		.auth_context_id = auth->auth_context_id,
-	};
-	NTSTATUS status;
-
-	if (!auth->auth_started) {
-		return false;
-	}
-
-	if (!auth->auth_finished) {
-		call->fault_code = DCERPC_NCA_S_PROTO_ERROR;
-		return false;
-	}
-
-	if (auth->auth_invalid) {
-		return false;
-	}
-
-	status = dcerpc_ncacn_pull_pkt_auth(&tmp_auth,
-					    auth->gensec_security,
-					    call,
-					    pkt->ptype,
-					    required_flags,
-					    optional_flags,
-					    payload_offset,
-					    payload_and_verifier,
-					    full_packet,
-					    pkt);
-	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROTOCOL_ERROR)) {
-		call->fault_code = DCERPC_NCA_S_PROTO_ERROR;
-		return false;
-	}
-	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_UNSUPPORTED_AUTHN_LEVEL)) {
-		call->fault_code = DCERPC_NCA_S_UNSUPPORTED_AUTHN_LEVEL;
-		return false;
-	}
-	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_SEC_PKG_ERROR)) {
-		call->fault_code = DCERPC_FAULT_SEC_PKG_ERROR;
-		return false;
-	}
-	if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
-		call->fault_code = DCERPC_FAULT_ACCESS_DENIED;
-		return false;
-	}
-	if (!NT_STATUS_IS_OK(status)) {
-		return false;
-	}
-
-	return true;
-}
-
-/* 
-   push a signed or sealed dcerpc request packet into a blob
-*/
-bool dcesrv_auth_pkt_push(struct dcesrv_call_state *call,
-			  DATA_BLOB *blob, size_t sig_size,
-			  uint8_t payload_offset,
-			  const DATA_BLOB *payload,
-			  const struct ncacn_packet *pkt)
-{
-	struct dcesrv_auth *auth = call->auth_state;
-	const struct dcerpc_auth tmp_auth = {
-		.auth_type = auth->auth_type,
-		.auth_level = auth->auth_level,
-		.auth_context_id = auth->auth_context_id,
-	};
-	NTSTATUS status;
-
-	status = dcerpc_ncacn_push_pkt_auth(&tmp_auth,
-					    auth->gensec_security,
-					    call, blob, sig_size,
-					    payload_offset,
-					    payload,
-					    pkt);
-	return NT_STATUS_IS_OK(status);
-}
diff --git a/source4/rpc_server/dcesrv_mgmt.c b/source4/rpc_server/dcesrv_mgmt.c
deleted file mode 100644
index e520a34f0bd..00000000000
--- a/source4/rpc_server/dcesrv_mgmt.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/* 
-   Unix SMB/CIFS implementation.
-
-   endpoint server for the mgmt pipe
-
-   Copyright (C) Jelmer Vernooij 2006
-   
-   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/>.
-*/
-
-#include "includes.h"
-#include "rpc_server/dcerpc_server.h"
-#include "rpc_server/dcerpc_server_proto.h"
-#include "librpc/gen_ndr/ndr_mgmt.h"
-
-#define DCESRV_INTERFACE_MGMT_BIND(context, iface) \
-       dcesrv_interface_mgmt_bind(context, iface)
-/*
- * This #define allows the mgmt interface to accept invalid
- * association groups, because association groups are to coordinate
- * handles, and handles are not used in mgmt. This in turn avoids
- * the need to coordinate these across multiple possible NETLOGON
- * processes, as an mgmt interface is added to each
- */
-
-#define DCESRV_INTERFACE_MGMT_FLAGS DCESRV_INTERFACE_FLAGS_HANDLES_NOT_USED
-
-static NTSTATUS dcesrv_interface_mgmt_bind(struct dcesrv_connection_context *context,
-					     const struct dcesrv_interface *iface)
-{
-	return dcesrv_interface_bind_allow_connect(context, iface);
-}
-
-/* 
-  mgmt_inq_if_ids 
-*/
-static WERROR dcesrv_mgmt_inq_if_ids(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-		       struct mgmt_inq_if_ids *r)
-{
-	const struct dcesrv_endpoint *ep = dce_call->conn->endpoint;
-	struct dcesrv_if_list *l;
-	struct rpc_if_id_vector_t *vector;
-
-	vector = *r->out.if_id_vector = talloc(mem_ctx, struct rpc_if_id_vector_t);
-	vector->count = 0;
-	vector->if_id = NULL;
-	for (l = ep->interface_list; l; l = l->next) {
-		vector->count++;
-		vector->if_id = talloc_realloc(mem_ctx, vector->if_id, struct ndr_syntax_id_p, vector->count);
-		vector->if_id[vector->count-1].id = &l->iface.syntax_id;
-	}
-	return WERR_OK;
-}
-
-
-/* 
-  mgmt_inq_stats 
-*/
-static WERROR dcesrv_mgmt_inq_stats(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-		       struct mgmt_inq_stats *r)
-{
-	if (r->in.max_count != MGMT_STATS_ARRAY_MAX_SIZE)
-		return WERR_NOT_SUPPORTED;
-
-	r->out.statistics->count = r->in.max_count;
-	r->out.statistics->statistics = talloc_array(mem_ctx, uint32_t, r->in.max_count);
-	/* FIXME */
-	r->out.statistics->statistics[MGMT_STATS_CALLS_IN] = 0;
-	r->out.statistics->statistics[MGMT_STATS_CALLS_OUT] = 0;
-	r->out.statistics->statistics[MGMT_STATS_PKTS_IN] = 0;
-	r->out.statistics->statistics[MGMT_STATS_PKTS_OUT] = 0;
-
-	return WERR_OK;
-}
-
-
-/* 
-  mgmt_is_server_listening 
-*/
-static uint32_t dcesrv_mgmt_is_server_listening(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-		       struct mgmt_is_server_listening *r)
-{
-	*r->out.status = 0;
-	return 1;
-}
-
-
-/* 
-  mgmt_stop_server_listening 
-*/
-static WERROR dcesrv_mgmt_stop_server_listening(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-		       struct mgmt_stop_server_listening *r)
-{
-	return WERR_ACCESS_DENIED;
-}
-
-
-/* 
-  mgmt_inq_princ_name 
-*/
-static WERROR dcesrv_mgmt_inq_princ_name(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-		       struct mgmt_inq_princ_name *r)
-{
-	DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
-}
-
-
-/* include the generated boilerplate */
-#include "librpc/gen_ndr/ndr_mgmt_s.c"
-
-const struct dcesrv_interface dcesrv_get_mgmt_interface(void)
-{
-	return dcesrv_mgmt_interface;
-}
diff --git a/source4/rpc_server/dcesrv_reply.c b/source4/rpc_server/dcesrv_reply.c
deleted file mode 100644
index b1abd9d87ab..00000000000
--- a/source4/rpc_server/dcesrv_reply.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
-   Unix SMB/CIFS implementation.
-
-   server side dcerpc common code
-
-   Copyright (C) Andrew Tridgell 2003-2010
-   Copyright (C) Stefan (metze) Metzmacher 2004-2005
-
-   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/>.
-*/
-
-#include "includes.h"
-#include "auth/gensec/gensec.h"
-#include "lib/util/dlinklist.h"
-#include "rpc_server/dcerpc_server.h"
-#include "rpc_server/dcerpc_server_proto.h"
-#include "param/param.h"
-#include "librpc/rpc/rpc_common.h"
-
-/*
-  move a call from an existing linked list to the specified list. This
-  prevents bugs where we forget to remove the call from a previous
-  list when moving it.
- */
-static void dcesrv_call_set_list(struct dcesrv_call_state *call,
-				 enum dcesrv_call_list list)
-{
-	switch (call->list) {
-	case DCESRV_LIST_NONE:
-		break;
-	case DCESRV_LIST_CALL_LIST:
-		DLIST_REMOVE(call->conn->call_list, call);
-		break;
-	case DCESRV_LIST_FRAGMENTED_CALL_LIST:
-		DLIST_REMOVE(call->conn->incoming_fragmented_call_list, call);
-		break;
-	case DCESRV_LIST_PENDING_CALL_LIST:
-		DLIST_REMOVE(call->conn->pending_call_list, call);
-		break;
-	}
-	call->list = list;
-	switch (list) {
-	case DCESRV_LIST_NONE:
-		break;
-	case DCESRV_LIST_CALL_LIST:
-		DLIST_ADD_END(call->conn->call_list, call);
-		break;
-	case DCESRV_LIST_FRAGMENTED_CALL_LIST:
-		DLIST_ADD_END(call->conn->incoming_fragmented_call_list, call);
-		break;
-	case DCESRV_LIST_PENDING_CALL_LIST:
-		DLIST_ADD_END(call->conn->pending_call_list, call);
-		break;
-	}
-}
-
-
-void dcesrv_init_hdr(struct ncacn_packet *pkt, bool bigendian)
-{
-	pkt->rpc_vers = 5;
-	pkt->rpc_vers_minor = 0;
-	if (bigendian) {
-		pkt->drep[0] = 0;
-	} else {
-		pkt->drep[0] = DCERPC_DREP_LE;
-	}
-	pkt->drep[1] = 0;
-	pkt->drep[2] = 0;
-	pkt->drep[3] = 0;
-}
-
-
-/*
-  return a dcerpc fault
-*/
-NTSTATUS dcesrv_fault_with_flags(struct dcesrv_call_state *call,
-				 uint32_t fault_code,
-				 uint8_t extra_flags)
-{
-	struct ncacn_packet pkt;
-	struct data_blob_list_item *rep;
-	NTSTATUS status;
-
-	/* setup a fault */
-	dcesrv_init_hdr(&pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
-	pkt.auth_length = 0;
-	pkt.call_id = call->pkt.call_id;
-	pkt.ptype = DCERPC_PKT_FAULT;
-	pkt.pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST | extra_flags;
-	pkt.u.fault.alloc_hint = 24;
-	if (call->context != NULL) {
-		pkt.u.fault.context_id = call->context->context_id;
-	} else {
-		pkt.u.fault.context_id = 0;
-	}
-	pkt.u.fault.cancel_count = 0;
-	pkt.u.fault.flags = 0;
-	pkt.u.fault.status = fault_code;
-	pkt.u.fault.reserved = 0;
-	pkt.u.fault.error_and_verifier = data_blob_null;
-
-	rep = talloc_zero(call, struct data_blob_list_item);
-	if (!rep) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	status = dcerpc_ncacn_push_auth(&rep->blob, call, &pkt, NULL);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
-	}
-
-	dcerpc_set_frag_length(&rep->blob, rep->blob.length);
-
-	DLIST_ADD_END(call->replies, rep);
-	dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
-
-	if (call->conn->call_list && call->conn->call_list->replies) {
-		if (call->conn->transport.report_output_data) {
-			call->conn->transport.report_output_data(call->conn);
-		}
-	}
-
-	return NT_STATUS_OK;
-}
-
-NTSTATUS dcesrv_fault(struct dcesrv_call_state *call, uint32_t fault_code)
-{
-	return dcesrv_fault_with_flags(call, fault_code, 0);
-}
-
-_PUBLIC_ NTSTATUS dcesrv_reply(struct dcesrv_call_state *call)
-{
-	struct ndr_push *push;
-	NTSTATUS status;
-	DATA_BLOB stub;
-	uint32_t total_length, chunk_size;
-	struct dcesrv_connection_context *context = call->context;
-	struct dcesrv_auth *auth = call->auth_state;
-	size_t sig_size = 0;
-
-	/* call the reply function */
-	status = context->iface->reply(call, call, call->r);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_fault(call, call->fault_code);
-	}
-
-	/* form the reply NDR */
-	push = ndr_push_init_ctx(call);
-	NT_STATUS_HAVE_NO_MEMORY(push);
-
-	/* carry over the pointer count to the reply in case we are
-	   using full pointer. See NDR specification for full
-	   pointers */
-	push->ptr_count = call->ndr_pull->ptr_count;
-
-	if (lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx)) {
-		push->flags |= LIBNDR_FLAG_BIGENDIAN;
-	}
-
-	status = context->iface->ndr_push(call, call, push, call->r);
-	if (!NT_STATUS_IS_OK(status)) {
-		return dcesrv_fault(call, call->fault_code);
-	}
-
-	stub = ndr_push_blob(push);
-
-	total_length = stub.length;
-
-	/* we can write a full max_recv_frag size, minus the dcerpc
-	   request header size */
-	chunk_size = call->conn->max_xmit_frag;
-	chunk_size -= DCERPC_REQUEST_LENGTH;
-	if (auth->auth_finished && auth->gensec_security != NULL) {
-		size_t max_payload = chunk_size;
-
-		max_payload -= DCERPC_AUTH_TRAILER_LENGTH;
-		max_payload -= (max_payload % DCERPC_AUTH_PAD_ALIGNMENT);
-
-		sig_size = gensec_sig_size(auth->gensec_security,
-					   max_payload);
-		if (sig_size) {
-			chunk_size -= DCERPC_AUTH_TRAILER_LENGTH;
-			chunk_size -= sig_size;
-		}
-	}
-	chunk_size -= (chunk_size % DCERPC_AUTH_PAD_ALIGNMENT);
-
-	do {
-		uint32_t length;
-		struct data_blob_list_item *rep;
-		struct ncacn_packet pkt;
-		bool ok;
-
-		rep = talloc_zero(call, struct data_blob_list_item);
-		NT_STATUS_HAVE_NO_MEMORY(rep);
-
-		length = MIN(chunk_size, stub.length);
-
-		/* form the dcerpc response packet */
-		dcesrv_init_hdr(&pkt,
-				lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
-		pkt.auth_length = 0;
-		pkt.call_id = call->pkt.call_id;
-		pkt.ptype = DCERPC_PKT_RESPONSE;
-		pkt.pfc_flags = 0;
-		if (stub.length == total_length) {
-			pkt.pfc_flags |= DCERPC_PFC_FLAG_FIRST;
-		}
-		if (length == stub.length) {
-			pkt.pfc_flags |= DCERPC_PFC_FLAG_LAST;
-		}
-		pkt.u.response.alloc_hint = stub.length;
-		/*
-		 * bug for bug, feature for feature...
-		 *
-		 * Windows truncates the context_id with & 0xFF,
-		 * so we do.
-		 */
-		pkt.u.response.context_id = context->context_id & 0xFF;
-		pkt.u.response.cancel_count = 0;
-		pkt.u.response.stub_and_verifier.data = stub.data;
-		pkt.u.response.stub_and_verifier.length = length;
-
-		ok = dcesrv_auth_pkt_push(call, &rep->blob, sig_size,
-					  DCERPC_RESPONSE_LENGTH,
-					  &pkt.u.response.stub_and_verifier,
-					  &pkt);
-		if (!ok) {
-			return dcesrv_fault(call, DCERPC_FAULT_OTHER);
-		}
-
-		dcerpc_set_frag_length(&rep->blob, rep->blob.length);
-
-		DLIST_ADD_END(call->replies, rep);
-
-		stub.data += length;
-		stub.length -= length;
-	} while (stub.length != 0);
-
-	/* move the call from the pending to the finished calls list */
-	dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
-
-	if (call->conn->call_list && call->conn->call_list->replies) {
-		if (call->conn->transport.report_output_data) {
-			call->conn->transport.report_output_data(call->conn);
-		}
-	}
-
-	return NT_STATUS_OK;
-}
diff --git a/source4/rpc_server/wscript_build b/source4/rpc_server/wscript_build
index 66cea942087..8d896c1722f 100644
--- a/source4/rpc_server/wscript_build
+++ b/source4/rpc_server/wscript_build
@@ -22,7 +22,7 @@ bld.SAMBA_SUBSYSTEM('DCERPC_COMMON',
 	)
 
 bld.SAMBA_LIBRARY('dcerpc_server',
-	source='dcerpc_server.c dcesrv_auth.c dcesrv_mgmt.c handles.c dcesrv_reply.c',
+	source='dcerpc_server.c handles.c',
 	pc_files='dcerpc_server.pc',
 	deps='LIBCLI_AUTH ndr samba_server_gensec service auth',
 	public_deps='dcerpc dcerpc-server-core',