2 Unix SMB/CIFS implementation.
4 server side dcerpc core code
6 Copyright (C) Andrew Tridgell 2003-2005
7 Copyright (C) Stefan (metze) Metzmacher 2004-2005
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "auth/auth.h"
25 #include "auth/gensec/gensec.h"
26 #include "../lib/util/dlinklist.h"
27 #include "rpc_server/dcerpc_server.h"
28 #include "rpc_server/dcerpc_server_proto.h"
29 #include "rpc_server/common/proto.h"
30 #include "librpc/rpc/dcerpc_proto.h"
31 #include "system/filesys.h"
32 #include "libcli/security/security.h"
33 #include "param/param.h"
34 #include "../lib/tsocket/tsocket.h"
35 #include "../libcli/named_pipe_auth/npa_tstream.h"
36 #include "smbd/service_stream.h"
37 #include "../lib/tsocket/tsocket.h"
38 #include "lib/socket/socket.h"
39 #include "smbd/process_model.h"
40 #include "lib/messaging/irpc.h"
41 #include "librpc/rpc/rpc_common.h"
42 #include "lib/util/samba_modules.h"
43 #include "librpc/gen_ndr/ndr_dcerpc.h"
45 /* this is only used when the client asks for an unknown interface */
46 #define DUMMY_ASSOC_GROUP 0x0FFFFFFF
48 extern const struct dcesrv_interface dcesrv_mgmt_interface;
52 find an association group given a assoc_group_id
54 static struct dcesrv_assoc_group *dcesrv_assoc_group_find(struct dcesrv_context *dce_ctx,
59 id_ptr = idr_find(dce_ctx->assoc_groups_idr, id);
63 return talloc_get_type_abort(id_ptr, struct dcesrv_assoc_group);
67 take a reference to an existing association group
69 static struct dcesrv_assoc_group *dcesrv_assoc_group_reference(TALLOC_CTX *mem_ctx,
70 struct dcesrv_context *dce_ctx,
73 struct dcesrv_assoc_group *assoc_group;
75 assoc_group = dcesrv_assoc_group_find(dce_ctx, id);
76 if (assoc_group == NULL) {
77 DEBUG(0,(__location__ ": Failed to find assoc_group 0x%08x\n", id));
80 return talloc_reference(mem_ctx, assoc_group);
83 static int dcesrv_assoc_group_destructor(struct dcesrv_assoc_group *assoc_group)
86 ret = idr_remove(assoc_group->dce_ctx->assoc_groups_idr, assoc_group->id);
88 DEBUG(0,(__location__ ": Failed to remove assoc_group 0x%08x\n",
95 allocate a new association group
97 static struct dcesrv_assoc_group *dcesrv_assoc_group_new(TALLOC_CTX *mem_ctx,
98 struct dcesrv_context *dce_ctx)
100 struct dcesrv_assoc_group *assoc_group;
103 assoc_group = talloc_zero(mem_ctx, struct dcesrv_assoc_group);
104 if (assoc_group == NULL) {
108 id = idr_get_new_random(dce_ctx->assoc_groups_idr, assoc_group, UINT16_MAX);
110 talloc_free(assoc_group);
111 DEBUG(0,(__location__ ": Out of association groups!\n"));
115 assoc_group->id = id;
116 assoc_group->dce_ctx = dce_ctx;
118 talloc_set_destructor(assoc_group, dcesrv_assoc_group_destructor);
125 see if two endpoints match
127 static bool endpoints_match(const struct dcerpc_binding *ep1,
128 const struct dcerpc_binding *ep2)
130 enum dcerpc_transport_t t1;
131 enum dcerpc_transport_t t2;
135 t1 = dcerpc_binding_get_transport(ep1);
136 t2 = dcerpc_binding_get_transport(ep2);
138 e1 = dcerpc_binding_get_string_option(ep1, "endpoint");
139 e2 = dcerpc_binding_get_string_option(ep2, "endpoint");
149 if (strcasecmp(e1, e2) != 0) {
157 find an endpoint in the dcesrv_context
159 static struct dcesrv_endpoint *find_endpoint(struct dcesrv_context *dce_ctx,
160 const struct dcerpc_binding *ep_description)
162 struct dcesrv_endpoint *ep;
163 for (ep=dce_ctx->endpoint_list; ep; ep=ep->next) {
164 if (endpoints_match(ep->ep_description, ep_description)) {
172 find a registered context_id from a bind or alter_context
174 static struct dcesrv_connection_context *dcesrv_find_context(struct dcesrv_connection *conn,
177 struct dcesrv_connection_context *c;
178 for (c=conn->contexts;c;c=c->next) {
179 if (c->context_id == context_id) return c;
185 see if a uuid and if_version match to an interface
187 static bool interface_match(const struct dcesrv_interface *if1,
188 const struct dcesrv_interface *if2)
190 return (if1->syntax_id.if_version == if2->syntax_id.if_version &&
191 GUID_equal(&if1->syntax_id.uuid, &if2->syntax_id.uuid));
195 find the interface operations on an endpoint
197 static const struct dcesrv_interface *find_interface(const struct dcesrv_endpoint *endpoint,
198 const struct dcesrv_interface *iface)
200 struct dcesrv_if_list *ifl;
201 for (ifl=endpoint->interface_list; ifl; ifl=ifl->next) {
202 if (interface_match(&(ifl->iface), iface)) {
203 return &(ifl->iface);
210 see if a uuid and if_version match to an interface
212 static bool interface_match_by_uuid(const struct dcesrv_interface *iface,
213 const struct GUID *uuid, uint32_t if_version)
215 return (iface->syntax_id.if_version == if_version &&
216 GUID_equal(&iface->syntax_id.uuid, uuid));
220 find the interface operations on an endpoint by uuid
222 static const struct dcesrv_interface *find_interface_by_uuid(const struct dcesrv_endpoint *endpoint,
223 const struct GUID *uuid, uint32_t if_version)
225 struct dcesrv_if_list *ifl;
226 for (ifl=endpoint->interface_list; ifl; ifl=ifl->next) {
227 if (interface_match_by_uuid(&(ifl->iface), uuid, if_version)) {
228 return &(ifl->iface);
235 find the earlier parts of a fragmented call awaiting reassembily
237 static struct dcesrv_call_state *dcesrv_find_fragmented_call(struct dcesrv_connection *dce_conn, uint16_t call_id)
239 struct dcesrv_call_state *c;
240 for (c=dce_conn->incoming_fragmented_call_list;c;c=c->next) {
241 if (c->pkt.call_id == call_id) {
249 register an interface on an endpoint
251 _PUBLIC_ NTSTATUS dcesrv_interface_register(struct dcesrv_context *dce_ctx,
253 const struct dcesrv_interface *iface,
254 const struct security_descriptor *sd)
256 struct dcesrv_endpoint *ep;
257 struct dcesrv_if_list *ifl;
258 struct dcerpc_binding *binding;
262 status = dcerpc_parse_binding(dce_ctx, ep_name, &binding);
264 if (NT_STATUS_IS_ERR(status)) {
265 DEBUG(0, ("Trouble parsing binding string '%s'\n", ep_name));
269 /* check if this endpoint exists
271 if ((ep=find_endpoint(dce_ctx, binding))==NULL) {
272 ep = talloc_zero(dce_ctx, struct dcesrv_endpoint);
274 return NT_STATUS_NO_MEMORY;
277 ep->ep_description = talloc_move(ep, &binding);
280 /* add mgmt interface */
281 ifl = talloc_zero(ep, struct dcesrv_if_list);
283 return NT_STATUS_NO_MEMORY;
286 memcpy(&(ifl->iface), &dcesrv_mgmt_interface,
287 sizeof(struct dcesrv_interface));
289 DLIST_ADD(ep->interface_list, ifl);
292 /* see if the interface is already registered on te endpoint */
293 if (find_interface(ep, iface)!=NULL) {
294 DEBUG(0,("dcesrv_interface_register: interface '%s' already registered on endpoint '%s'\n",
295 iface->name, ep_name));
296 return NT_STATUS_OBJECT_NAME_COLLISION;
299 /* talloc a new interface list element */
300 ifl = talloc_zero(ep, struct dcesrv_if_list);
302 return NT_STATUS_NO_MEMORY;
305 /* copy the given interface struct to the one on the endpoints interface list */
306 memcpy(&(ifl->iface),iface, sizeof(struct dcesrv_interface));
308 /* if we have a security descriptor given,
309 * we should see if we can set it up on the endpoint
312 /* if there's currently no security descriptor given on the endpoint
315 if (ep->sd == NULL) {
316 ep->sd = security_descriptor_copy(ep, sd);
319 /* if now there's no security descriptor given on the endpoint
320 * something goes wrong, either we failed to copy the security descriptor
321 * or there was already one on the endpoint
323 if (ep->sd != NULL) {
324 DEBUG(0,("dcesrv_interface_register: interface '%s' failed to setup a security descriptor\n"
325 " on endpoint '%s'\n",
326 iface->name, ep_name));
327 if (add_ep) free(ep);
329 return NT_STATUS_OBJECT_NAME_COLLISION;
333 /* finally add the interface on the endpoint */
334 DLIST_ADD(ep->interface_list, ifl);
336 /* if it's a new endpoint add it to the dcesrv_context */
338 DLIST_ADD(dce_ctx->endpoint_list, ep);
341 DEBUG(4,("dcesrv_interface_register: interface '%s' registered on endpoint '%s'\n",
342 iface->name, ep_name));
347 NTSTATUS dcesrv_inherited_session_key(struct dcesrv_connection *p,
348 DATA_BLOB *session_key)
350 if (p->auth_state.session_info->session_key.length) {
351 *session_key = p->auth_state.session_info->session_key;
354 return NT_STATUS_NO_USER_SESSION_KEY;
358 fetch the user session key - may be default (above) or the SMB session key
360 The key is always truncated to 16 bytes
362 _PUBLIC_ NTSTATUS dcesrv_fetch_session_key(struct dcesrv_connection *p,
363 DATA_BLOB *session_key)
365 NTSTATUS status = p->auth_state.session_key(p, session_key);
366 if (!NT_STATUS_IS_OK(status)) {
370 session_key->length = MIN(session_key->length, 16);
376 connect to a dcerpc endpoint
378 _PUBLIC_ NTSTATUS dcesrv_endpoint_connect(struct dcesrv_context *dce_ctx,
380 const struct dcesrv_endpoint *ep,
381 struct auth_session_info *session_info,
382 struct tevent_context *event_ctx,
383 struct imessaging_context *msg_ctx,
384 struct server_id server_id,
385 uint32_t state_flags,
386 struct dcesrv_connection **_p)
388 struct dcesrv_connection *p;
391 return NT_STATUS_ACCESS_DENIED;
394 p = talloc_zero(mem_ctx, struct dcesrv_connection);
395 NT_STATUS_HAVE_NO_MEMORY(p);
397 if (!talloc_reference(p, session_info)) {
399 return NT_STATUS_NO_MEMORY;
402 p->dce_ctx = dce_ctx;
404 p->packet_log_dir = lpcfg_lock_directory(dce_ctx->lp_ctx);
405 p->auth_state.session_info = session_info;
406 p->auth_state.session_key = dcesrv_generic_session_key;
407 p->event_ctx = event_ctx;
408 p->msg_ctx = msg_ctx;
409 p->server_id = server_id;
410 p->state_flags = state_flags;
411 p->allow_bind = true;
412 p->max_recv_frag = 5840;
413 p->max_xmit_frag = 5840;
420 move a call from an existing linked list to the specified list. This
421 prevents bugs where we forget to remove the call from a previous
424 static void dcesrv_call_set_list(struct dcesrv_call_state *call,
425 enum dcesrv_call_list list)
427 switch (call->list) {
428 case DCESRV_LIST_NONE:
430 case DCESRV_LIST_CALL_LIST:
431 DLIST_REMOVE(call->conn->call_list, call);
433 case DCESRV_LIST_FRAGMENTED_CALL_LIST:
434 DLIST_REMOVE(call->conn->incoming_fragmented_call_list, call);
436 case DCESRV_LIST_PENDING_CALL_LIST:
437 DLIST_REMOVE(call->conn->pending_call_list, call);
442 case DCESRV_LIST_NONE:
444 case DCESRV_LIST_CALL_LIST:
445 DLIST_ADD_END(call->conn->call_list, call);
447 case DCESRV_LIST_FRAGMENTED_CALL_LIST:
448 DLIST_ADD_END(call->conn->incoming_fragmented_call_list, call);
450 case DCESRV_LIST_PENDING_CALL_LIST:
451 DLIST_ADD_END(call->conn->pending_call_list, call);
456 static void dcesrv_call_disconnect_after(struct dcesrv_call_state *call,
459 if (call->conn->terminate != NULL) {
463 call->conn->allow_bind = false;
464 call->conn->allow_alter = false;
465 call->conn->allow_auth3 = false;
466 call->conn->allow_request = false;
468 call->terminate_reason = talloc_strdup(call, reason);
469 if (call->terminate_reason == NULL) {
470 call->terminate_reason = __location__;
475 return a dcerpc bind_nak
477 static NTSTATUS dcesrv_bind_nak(struct dcesrv_call_state *call, uint32_t reason)
479 struct ncacn_packet pkt;
480 struct dcerpc_bind_nak_version version;
481 struct data_blob_list_item *rep;
483 static const uint8_t _pad[3] = { 0, };
486 * We add the call to the pending_call_list
487 * in order to defer the termination.
489 dcesrv_call_disconnect_after(call, "dcesrv_bind_nak");
491 /* setup a bind_nak */
492 dcesrv_init_hdr(&pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
494 pkt.call_id = call->pkt.call_id;
495 pkt.ptype = DCERPC_PKT_BIND_NAK;
496 pkt.pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST;
497 pkt.u.bind_nak.reject_reason = reason;
498 version.rpc_vers = 5;
499 version.rpc_vers_minor = 0;
500 pkt.u.bind_nak.num_versions = 1;
501 pkt.u.bind_nak.versions = &version;
502 pkt.u.bind_nak._pad = data_blob_const(_pad, sizeof(_pad));
504 rep = talloc_zero(call, struct data_blob_list_item);
506 return NT_STATUS_NO_MEMORY;
509 status = ncacn_push_auth(&rep->blob, call, &pkt, NULL);
510 if (!NT_STATUS_IS_OK(status)) {
514 dcerpc_set_frag_length(&rep->blob, rep->blob.length);
516 DLIST_ADD_END(call->replies, rep);
517 dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
519 if (call->conn->call_list && call->conn->call_list->replies) {
520 if (call->conn->transport.report_output_data) {
521 call->conn->transport.report_output_data(call->conn);
528 static NTSTATUS dcesrv_fault_disconnect(struct dcesrv_call_state *call,
532 * We add the call to the pending_call_list
533 * in order to defer the termination.
535 dcesrv_call_disconnect_after(call, "dcesrv_fault_disconnect");
537 return dcesrv_fault_with_flags(call, fault_code,
538 DCERPC_PFC_FLAG_DID_NOT_EXECUTE);
541 static int dcesrv_connection_context_destructor(struct dcesrv_connection_context *c)
543 DLIST_REMOVE(c->conn->contexts, c);
545 if (c->iface && c->iface->unbind) {
546 c->iface->unbind(c, c->iface);
553 static void dcesrv_prepare_context_auth(struct dcesrv_call_state *dce_call)
555 struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
556 const struct dcesrv_endpoint *endpoint = dce_call->conn->endpoint;
557 enum dcerpc_transport_t transport =
558 dcerpc_binding_get_transport(endpoint->ep_description);
559 struct dcesrv_connection_context *context = dce_call->context;
560 const struct dcesrv_interface *iface = context->iface;
562 context->min_auth_level = DCERPC_AUTH_LEVEL_NONE;
564 if (transport == NCALRPC) {
565 context->allow_connect = true;
570 * allow overwrite per interface
571 * allow dcerpc auth level connect:<interface>
573 context->allow_connect = lpcfg_allow_dcerpc_auth_level_connect(lp_ctx);
574 context->allow_connect = lpcfg_parm_bool(lp_ctx, NULL,
575 "allow dcerpc auth level connect",
577 context->allow_connect);
580 NTSTATUS dcesrv_interface_bind_require_integrity(struct dcesrv_call_state *dce_call,
581 const struct dcesrv_interface *iface)
583 if (dce_call->context == NULL) {
584 return NT_STATUS_INTERNAL_ERROR;
587 dce_call->context->min_auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
591 NTSTATUS dcesrv_interface_bind_require_privacy(struct dcesrv_call_state *dce_call,
592 const struct dcesrv_interface *iface)
594 if (dce_call->context == NULL) {
595 return NT_STATUS_INTERNAL_ERROR;
598 dce_call->context->min_auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
602 _PUBLIC_ NTSTATUS dcesrv_interface_bind_reject_connect(struct dcesrv_call_state *dce_call,
603 const struct dcesrv_interface *iface)
605 struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
606 const struct dcesrv_endpoint *endpoint = dce_call->conn->endpoint;
607 enum dcerpc_transport_t transport =
608 dcerpc_binding_get_transport(endpoint->ep_description);
609 struct dcesrv_connection_context *context = dce_call->context;
611 if (context == NULL) {
612 return NT_STATUS_INTERNAL_ERROR;
615 if (transport == NCALRPC) {
616 context->allow_connect = true;
621 * allow overwrite per interface
622 * allow dcerpc auth level connect:<interface>
624 context->allow_connect = false;
625 context->allow_connect = lpcfg_parm_bool(lp_ctx, NULL,
626 "allow dcerpc auth level connect",
628 context->allow_connect);
632 _PUBLIC_ NTSTATUS dcesrv_interface_bind_allow_connect(struct dcesrv_call_state *dce_call,
633 const struct dcesrv_interface *iface)
635 struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
636 const struct dcesrv_endpoint *endpoint = dce_call->conn->endpoint;
637 enum dcerpc_transport_t transport =
638 dcerpc_binding_get_transport(endpoint->ep_description);
639 struct dcesrv_connection_context *context = dce_call->context;
641 if (context == NULL) {
642 return NT_STATUS_INTERNAL_ERROR;
645 if (transport == NCALRPC) {
646 context->allow_connect = true;
651 * allow overwrite per interface
652 * allow dcerpc auth level connect:<interface>
654 context->allow_connect = true;
655 context->allow_connect = lpcfg_parm_bool(lp_ctx, NULL,
656 "allow dcerpc auth level connect",
658 context->allow_connect);
663 handle a bind request
665 static NTSTATUS dcesrv_bind(struct dcesrv_call_state *call)
667 uint32_t if_version, transfer_syntax_version;
668 struct GUID uuid, *transfer_syntax_uuid;
669 struct ncacn_packet pkt;
670 struct data_blob_list_item *rep;
672 uint32_t result=0, reason=0;
674 const struct dcesrv_interface *iface;
675 uint32_t extra_flags = 0;
676 uint16_t max_req = 0;
677 uint16_t max_rep = 0;
678 const char *ep_prefix = "";
679 const char *endpoint = NULL;
681 status = dcerpc_verify_ncacn_packet_header(&call->pkt,
683 call->pkt.u.bind.auth_info.length,
684 0, /* required flags */
685 DCERPC_PFC_FLAG_FIRST |
686 DCERPC_PFC_FLAG_LAST |
687 DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN |
688 0x08 | /* this is not defined, but should be ignored */
689 DCERPC_PFC_FLAG_CONC_MPX |
690 DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
691 DCERPC_PFC_FLAG_MAYBE |
692 DCERPC_PFC_FLAG_OBJECT_UUID);
693 if (!NT_STATUS_IS_OK(status)) {
694 return dcesrv_bind_nak(call,
695 DCERPC_BIND_NAK_REASON_PROTOCOL_VERSION_NOT_SUPPORTED);
698 /* max_recv_frag and max_xmit_frag result always in the same value! */
699 max_req = MIN(call->pkt.u.bind.max_xmit_frag,
700 call->pkt.u.bind.max_recv_frag);
702 * The values are between 2048 and 5840 tested against Windows 2012R2
703 * via ncacn_ip_tcp on port 135.
705 max_req = MAX(2048, max_req);
706 max_rep = MIN(max_req, call->conn->max_recv_frag);
707 /* They are truncated to an 8 byte boundary. */
710 /* max_recv_frag and max_xmit_frag result always in the same value! */
711 call->conn->max_recv_frag = max_rep;
712 call->conn->max_xmit_frag = max_rep;
715 if provided, check the assoc_group is valid
717 if (call->pkt.u.bind.assoc_group_id != 0 &&
718 lpcfg_parm_bool(call->conn->dce_ctx->lp_ctx, NULL, "dcesrv","assoc group checking", true) &&
719 dcesrv_assoc_group_find(call->conn->dce_ctx, call->pkt.u.bind.assoc_group_id) == NULL) {
720 return dcesrv_bind_nak(call, 0);
723 if (call->pkt.u.bind.num_contexts < 1 ||
724 call->pkt.u.bind.ctx_list[0].num_transfer_syntaxes < 1) {
725 return dcesrv_bind_nak(call, 0);
728 context_id = call->pkt.u.bind.ctx_list[0].context_id;
730 /* you can't bind twice on one context */
731 if (dcesrv_find_context(call->conn, context_id) != NULL) {
732 return dcesrv_bind_nak(call, 0);
735 if_version = call->pkt.u.bind.ctx_list[0].abstract_syntax.if_version;
736 uuid = call->pkt.u.bind.ctx_list[0].abstract_syntax.uuid;
738 transfer_syntax_version = call->pkt.u.bind.ctx_list[0].transfer_syntaxes[0].if_version;
739 transfer_syntax_uuid = &call->pkt.u.bind.ctx_list[0].transfer_syntaxes[0].uuid;
740 if (!GUID_equal(&ndr_transfer_syntax_ndr.uuid, transfer_syntax_uuid) != 0 ||
741 ndr_transfer_syntax_ndr.if_version != transfer_syntax_version) {
742 char *uuid_str = GUID_string(call, transfer_syntax_uuid);
743 /* we only do NDR encoded dcerpc */
744 DEBUG(0,("Non NDR transfer syntax requested - %s\n", uuid_str));
745 talloc_free(uuid_str);
746 return dcesrv_bind_nak(call, 0);
749 iface = find_interface_by_uuid(call->conn->endpoint, &uuid, if_version);
751 char *uuid_str = GUID_string(call, &uuid);
752 DEBUG(2,("Request for unknown dcerpc interface %s/%d\n", uuid_str, if_version));
753 talloc_free(uuid_str);
755 /* we don't know about that interface */
756 result = DCERPC_BIND_PROVIDER_REJECT;
757 reason = DCERPC_BIND_REASON_ASYNTAX;
761 /* add this context to the list of available context_ids */
762 struct dcesrv_connection_context *context = talloc_zero(call->conn,
763 struct dcesrv_connection_context);
764 if (context == NULL) {
765 return dcesrv_bind_nak(call, 0);
767 context->conn = call->conn;
768 context->iface = iface;
769 context->context_id = context_id;
770 if (call->pkt.u.bind.assoc_group_id != 0) {
771 context->assoc_group = dcesrv_assoc_group_reference(context,
773 call->pkt.u.bind.assoc_group_id);
775 context->assoc_group = dcesrv_assoc_group_new(context, call->conn->dce_ctx);
777 if (context->assoc_group == NULL) {
778 talloc_free(context);
779 return dcesrv_bind_nak(call, 0);
781 context->private_data = NULL;
782 DLIST_ADD(call->conn->contexts, context);
783 call->context = context;
784 talloc_set_destructor(context, dcesrv_connection_context_destructor);
786 dcesrv_prepare_context_auth(call);
788 status = iface->bind(call, iface, if_version);
789 if (!NT_STATUS_IS_OK(status)) {
790 char *uuid_str = GUID_string(call, &uuid);
791 DEBUG(2,("Request for dcerpc interface %s/%d rejected: %s\n",
792 uuid_str, if_version, nt_errstr(status)));
793 talloc_free(uuid_str);
794 /* we don't want to trigger the iface->unbind() hook */
795 context->iface = NULL;
796 talloc_free(call->context);
797 call->context = NULL;
798 return dcesrv_bind_nak(call, 0);
802 if ((call->pkt.pfc_flags & DCERPC_PFC_FLAG_CONC_MPX) &&
803 (call->state_flags & DCESRV_CALL_STATE_FLAG_MULTIPLEXED)) {
804 call->context->conn->state_flags |= DCESRV_CALL_STATE_FLAG_MULTIPLEXED;
805 extra_flags |= DCERPC_PFC_FLAG_CONC_MPX;
808 if (call->state_flags & DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL) {
809 call->context->conn->state_flags |= DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL;
812 /* handle any authentication that is being requested */
813 if (!dcesrv_auth_bind(call)) {
814 talloc_free(call->context);
815 call->context = NULL;
816 return dcesrv_bind_nak(call, DCERPC_BIND_REASON_INVALID_AUTH_TYPE);
819 /* setup a bind_ack */
820 dcesrv_init_hdr(&pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
822 pkt.call_id = call->pkt.call_id;
823 pkt.ptype = DCERPC_PKT_BIND_ACK;
824 pkt.pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST | extra_flags;
825 pkt.u.bind_ack.max_xmit_frag = call->conn->max_xmit_frag;
826 pkt.u.bind_ack.max_recv_frag = call->conn->max_recv_frag;
829 make it possible for iface->bind() to specify the assoc_group_id
830 This helps the openchange mapiproxy plugin to work correctly.
835 pkt.u.bind_ack.assoc_group_id = call->context->assoc_group->id;
837 pkt.u.bind_ack.assoc_group_id = DUMMY_ASSOC_GROUP;
841 endpoint = dcerpc_binding_get_string_option(
842 call->conn->endpoint->ep_description,
846 if (endpoint == NULL) {
850 if (strncasecmp(endpoint, "\\pipe\\", 6) == 0) {
852 * TODO: check if this is really needed
854 * Or if we should fix this in our idl files.
856 ep_prefix = "\\PIPE\\";
860 pkt.u.bind_ack.secondary_address = talloc_asprintf(call, "%s%s",
863 if (pkt.u.bind_ack.secondary_address == NULL) {
864 TALLOC_FREE(call->context);
865 return NT_STATUS_NO_MEMORY;
867 pkt.u.bind_ack.num_results = 1;
868 pkt.u.bind_ack.ctx_list = talloc_zero(call, struct dcerpc_ack_ctx);
869 if (!pkt.u.bind_ack.ctx_list) {
870 talloc_free(call->context);
871 call->context = NULL;
872 return NT_STATUS_NO_MEMORY;
874 pkt.u.bind_ack.ctx_list[0].result = result;
875 pkt.u.bind_ack.ctx_list[0].reason.value = reason;
876 pkt.u.bind_ack.ctx_list[0].syntax = ndr_transfer_syntax_ndr;
877 pkt.u.bind_ack.auth_info = data_blob(NULL, 0);
879 status = dcesrv_auth_bind_ack(call, &pkt);
880 if (!NT_STATUS_IS_OK(status)) {
881 talloc_free(call->context);
882 call->context = NULL;
883 return dcesrv_bind_nak(call, 0);
886 rep = talloc_zero(call, struct data_blob_list_item);
888 talloc_free(call->context);
889 call->context = NULL;
890 return NT_STATUS_NO_MEMORY;
893 status = ncacn_push_auth(&rep->blob, call, &pkt,
894 call->out_auth_info);
895 if (!NT_STATUS_IS_OK(status)) {
896 talloc_free(call->context);
897 call->context = NULL;
901 dcerpc_set_frag_length(&rep->blob, rep->blob.length);
903 DLIST_ADD_END(call->replies, rep);
904 dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
906 if (call->conn->call_list && call->conn->call_list->replies) {
907 if (call->conn->transport.report_output_data) {
908 call->conn->transport.report_output_data(call->conn);
917 handle a auth3 request
919 static NTSTATUS dcesrv_auth3(struct dcesrv_call_state *call)
923 if (!call->conn->allow_auth3) {
924 return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
927 if (call->conn->auth_state.auth_finished) {
928 return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
931 status = dcerpc_verify_ncacn_packet_header(&call->pkt,
933 call->pkt.u.auth3.auth_info.length,
934 0, /* required flags */
935 DCERPC_PFC_FLAG_FIRST |
936 DCERPC_PFC_FLAG_LAST |
937 DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN |
938 0x08 | /* this is not defined, but should be ignored */
939 DCERPC_PFC_FLAG_CONC_MPX |
940 DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
941 DCERPC_PFC_FLAG_MAYBE |
942 DCERPC_PFC_FLAG_OBJECT_UUID);
943 if (!NT_STATUS_IS_OK(status)) {
944 return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
947 /* handle the auth3 in the auth code */
948 if (!dcesrv_auth_auth3(call)) {
949 return dcesrv_fault(call, DCERPC_FAULT_OTHER);
954 /* we don't send a reply to a auth3 request, except by a
961 handle a bind request
963 static NTSTATUS dcesrv_alter_new_context(struct dcesrv_call_state *call, uint32_t context_id)
965 uint32_t if_version, transfer_syntax_version;
966 struct dcesrv_connection_context *context;
967 const struct dcesrv_interface *iface;
968 struct GUID uuid, *transfer_syntax_uuid;
971 if_version = call->pkt.u.alter.ctx_list[0].abstract_syntax.if_version;
972 uuid = call->pkt.u.alter.ctx_list[0].abstract_syntax.uuid;
974 transfer_syntax_version = call->pkt.u.alter.ctx_list[0].transfer_syntaxes[0].if_version;
975 transfer_syntax_uuid = &call->pkt.u.alter.ctx_list[0].transfer_syntaxes[0].uuid;
976 if (!GUID_equal(transfer_syntax_uuid, &ndr_transfer_syntax_ndr.uuid) ||
977 ndr_transfer_syntax_ndr.if_version != transfer_syntax_version) {
978 /* we only do NDR encoded dcerpc */
979 return NT_STATUS_RPC_PROTSEQ_NOT_SUPPORTED;
982 iface = find_interface_by_uuid(call->conn->endpoint, &uuid, if_version);
984 char *uuid_str = GUID_string(call, &uuid);
985 DEBUG(2,("Request for unknown dcerpc interface %s/%d\n", uuid_str, if_version));
986 talloc_free(uuid_str);
987 return NT_STATUS_RPC_PROTSEQ_NOT_SUPPORTED;
990 /* add this context to the list of available context_ids */
991 context = talloc_zero(call->conn, struct dcesrv_connection_context);
992 if (context == NULL) {
993 return NT_STATUS_NO_MEMORY;
995 context->conn = call->conn;
996 context->iface = iface;
997 context->context_id = context_id;
998 if (call->pkt.u.alter.assoc_group_id != 0) {
999 context->assoc_group = dcesrv_assoc_group_reference(context,
1000 call->conn->dce_ctx,
1001 call->pkt.u.alter.assoc_group_id);
1003 context->assoc_group = dcesrv_assoc_group_new(context, call->conn->dce_ctx);
1005 if (context->assoc_group == NULL) {
1006 talloc_free(context);
1007 call->context = NULL;
1008 return NT_STATUS_NO_MEMORY;
1010 context->private_data = NULL;
1011 DLIST_ADD(call->conn->contexts, context);
1012 call->context = context;
1013 talloc_set_destructor(context, dcesrv_connection_context_destructor);
1015 dcesrv_prepare_context_auth(call);
1017 status = iface->bind(call, iface, if_version);
1018 if (!NT_STATUS_IS_OK(status)) {
1019 /* we don't want to trigger the iface->unbind() hook */
1020 context->iface = NULL;
1021 talloc_free(context);
1022 call->context = NULL;
1026 return NT_STATUS_OK;
1029 /* setup and send an alter_resp */
1030 static NTSTATUS dcesrv_alter_resp(struct dcesrv_call_state *call,
1034 struct ncacn_packet pkt;
1035 uint32_t extra_flags = 0;
1036 struct data_blob_list_item *rep = NULL;
1039 dcesrv_init_hdr(&pkt, lpcfg_rpc_big_endian(call->conn->dce_ctx->lp_ctx));
1040 pkt.auth_length = 0;
1041 pkt.call_id = call->pkt.call_id;
1042 pkt.ptype = DCERPC_PKT_ALTER_RESP;
1044 if ((call->pkt.pfc_flags & DCERPC_PFC_FLAG_CONC_MPX) &&
1045 call->context->conn->state_flags &
1046 DCESRV_CALL_STATE_FLAG_MULTIPLEXED) {
1047 extra_flags |= DCERPC_PFC_FLAG_CONC_MPX;
1049 if (call->state_flags & DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL) {
1050 call->context->conn->state_flags |=
1051 DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL;
1054 pkt.pfc_flags = DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST | extra_flags;
1055 pkt.u.alter_resp.max_xmit_frag = call->conn->max_xmit_frag;
1056 pkt.u.alter_resp.max_recv_frag = call->conn->max_recv_frag;
1058 pkt.u.alter_resp.assoc_group_id = call->context->assoc_group->id;
1060 pkt.u.alter_resp.assoc_group_id = 0;
1062 pkt.u.alter_resp.num_results = 1;
1063 pkt.u.alter_resp.ctx_list = talloc_zero(call, struct dcerpc_ack_ctx);
1064 if (!pkt.u.alter_resp.ctx_list) {
1065 return NT_STATUS_NO_MEMORY;
1067 pkt.u.alter_resp.ctx_list[0].result = result;
1068 pkt.u.alter_resp.ctx_list[0].reason.value = reason;
1069 pkt.u.alter_resp.ctx_list[0].syntax = ndr_transfer_syntax_ndr;
1070 pkt.u.alter_resp.auth_info = data_blob(NULL, 0);
1071 pkt.u.alter_resp.secondary_address = "";
1073 status = dcesrv_auth_alter_ack(call, &pkt);
1074 if (!NT_STATUS_IS_OK(status)) {
1075 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)
1076 || NT_STATUS_EQUAL(status, NT_STATUS_LOGON_FAILURE)
1077 || NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
1078 || NT_STATUS_EQUAL(status, NT_STATUS_WRONG_PASSWORD)) {
1079 return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
1081 return dcesrv_fault(call, 0);
1084 rep = talloc_zero(call, struct data_blob_list_item);
1086 return NT_STATUS_NO_MEMORY;
1089 status = ncacn_push_auth(&rep->blob, call, &pkt, call->out_auth_info);
1090 if (!NT_STATUS_IS_OK(status)) {
1094 dcerpc_set_frag_length(&rep->blob, rep->blob.length);
1096 DLIST_ADD_END(call->replies, rep);
1097 dcesrv_call_set_list(call, DCESRV_LIST_CALL_LIST);
1099 if (call->conn->call_list && call->conn->call_list->replies) {
1100 if (call->conn->transport.report_output_data) {
1101 call->conn->transport.report_output_data(call->conn);
1105 return NT_STATUS_OK;
1109 handle a alter context request
1111 static NTSTATUS dcesrv_alter(struct dcesrv_call_state *call)
1114 uint32_t context_id;
1116 if (!call->conn->allow_alter) {
1117 return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
1120 status = dcerpc_verify_ncacn_packet_header(&call->pkt,
1122 call->pkt.u.alter.auth_info.length,
1123 0, /* required flags */
1124 DCERPC_PFC_FLAG_FIRST |
1125 DCERPC_PFC_FLAG_LAST |
1126 DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN |
1127 0x08 | /* this is not defined, but should be ignored */
1128 DCERPC_PFC_FLAG_CONC_MPX |
1129 DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
1130 DCERPC_PFC_FLAG_MAYBE |
1131 DCERPC_PFC_FLAG_OBJECT_UUID);
1132 if (!NT_STATUS_IS_OK(status)) {
1133 return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
1136 /* handle any authentication that is being requested */
1137 if (!dcesrv_auth_alter(call)) {
1138 /* TODO: work out the right reject code */
1139 return dcesrv_alter_resp(call,
1140 DCERPC_BIND_PROVIDER_REJECT,
1141 DCERPC_BIND_REASON_ASYNTAX);
1144 context_id = call->pkt.u.alter.ctx_list[0].context_id;
1146 /* see if they are asking for a new interface */
1147 call->context = dcesrv_find_context(call->conn, context_id);
1148 if (!call->context) {
1149 status = dcesrv_alter_new_context(call, context_id);
1150 if (!NT_STATUS_IS_OK(status)) {
1151 return dcesrv_alter_resp(call,
1152 DCERPC_BIND_PROVIDER_REJECT,
1153 DCERPC_BIND_REASON_ASYNTAX);
1157 if (call->pkt.u.alter.assoc_group_id != 0 &&
1158 lpcfg_parm_bool(call->conn->dce_ctx->lp_ctx, NULL, "dcesrv","assoc group checking", true) &&
1159 call->pkt.u.alter.assoc_group_id != call->context->assoc_group->id) {
1160 DEBUG(0,(__location__ ": Failed attempt to use new assoc_group in alter context (0x%08x 0x%08x)\n",
1161 call->context->assoc_group->id, call->pkt.u.alter.assoc_group_id));
1162 /* TODO: can they ask for a new association group? */
1163 return dcesrv_alter_resp(call,
1164 DCERPC_BIND_PROVIDER_REJECT,
1165 DCERPC_BIND_REASON_ASYNTAX);
1168 return dcesrv_alter_resp(call,
1169 DCERPC_BIND_ACK_RESULT_ACCEPTANCE,
1170 DCERPC_BIND_ACK_REASON_NOT_SPECIFIED);
1174 possibly save the call for inspection with ndrdump
1176 static void dcesrv_save_call(struct dcesrv_call_state *call, const char *why)
1180 const char *dump_dir;
1181 dump_dir = lpcfg_parm_string(call->conn->dce_ctx->lp_ctx, NULL, "dcesrv", "stubs directory");
1185 fname = talloc_asprintf(call, "%s/RPC-%s-%u-%s.dat",
1187 call->context->iface->name,
1188 call->pkt.u.request.opnum,
1190 if (file_save(fname, call->pkt.u.request.stub_and_verifier.data, call->pkt.u.request.stub_and_verifier.length)) {
1191 DEBUG(0,("RPC SAVED %s\n", fname));
1197 static NTSTATUS dcesrv_check_verification_trailer(struct dcesrv_call_state *call)
1199 TALLOC_CTX *frame = talloc_stackframe();
1200 const uint32_t bitmask1 = call->conn->auth_state.client_hdr_signing ?
1201 DCERPC_SEC_VT_CLIENT_SUPPORTS_HEADER_SIGNING : 0;
1202 const struct dcerpc_sec_vt_pcontext pcontext = {
1203 .abstract_syntax = call->context->iface->syntax_id,
1204 .transfer_syntax = ndr_transfer_syntax_ndr,
1206 const struct dcerpc_sec_vt_header2 header2 =
1207 dcerpc_sec_vt_header2_from_ncacn_packet(&call->pkt);
1208 enum ndr_err_code ndr_err;
1209 struct dcerpc_sec_verification_trailer *vt = NULL;
1210 NTSTATUS status = NT_STATUS_OK;
1213 SMB_ASSERT(call->pkt.ptype == DCERPC_PKT_REQUEST);
1215 ndr_err = ndr_pop_dcerpc_sec_verification_trailer(call->ndr_pull,
1217 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1218 status = ndr_map_error2ntstatus(ndr_err);
1222 ok = dcerpc_sec_verification_trailer_check(vt, &bitmask1,
1223 &pcontext, &header2);
1225 status = NT_STATUS_ACCESS_DENIED;
1234 handle a dcerpc request packet
1236 static NTSTATUS dcesrv_request(struct dcesrv_call_state *call)
1238 const struct dcesrv_endpoint *endpoint = call->conn->endpoint;
1239 enum dcerpc_transport_t transport =
1240 dcerpc_binding_get_transport(endpoint->ep_description);
1241 struct ndr_pull *pull;
1243 struct dcesrv_connection_context *context;
1245 if (!call->conn->allow_request) {
1246 return dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
1249 /* if authenticated, and the mech we use can't do async replies, don't use them... */
1250 if (call->conn->auth_state.gensec_security &&
1251 !gensec_have_feature(call->conn->auth_state.gensec_security, GENSEC_FEATURE_ASYNC_REPLIES)) {
1252 call->state_flags &= ~DCESRV_CALL_STATE_FLAG_MAY_ASYNC;
1255 context = dcesrv_find_context(call->conn, call->pkt.u.request.context_id);
1256 if (context == NULL) {
1257 return dcesrv_fault(call, DCERPC_FAULT_UNK_IF);
1260 switch (call->conn->auth_state.auth_level) {
1261 case DCERPC_AUTH_LEVEL_NONE:
1262 case DCERPC_AUTH_LEVEL_INTEGRITY:
1263 case DCERPC_AUTH_LEVEL_PRIVACY:
1266 if (!context->allow_connect) {
1269 addr = tsocket_address_string(call->conn->remote_address,
1272 DEBUG(2, ("%s: restrict auth_level_connect access "
1273 "to [%s] with auth[type=0x%x,level=0x%x] "
1274 "on [%s] from [%s]\n",
1275 __func__, context->iface->name,
1276 call->conn->auth_state.auth_type,
1277 call->conn->auth_state.auth_level,
1278 derpc_transport_string_by_transport(transport),
1280 return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
1285 if (call->conn->auth_state.auth_level < context->min_auth_level) {
1288 addr = tsocket_address_string(call->conn->remote_address, call);
1290 DEBUG(2, ("%s: restrict access by min_auth_level[0x%x] "
1291 "to [%s] with auth[type=0x%x,level=0x%x] "
1292 "on [%s] from [%s]\n",
1294 context->min_auth_level,
1295 context->iface->name,
1296 call->conn->auth_state.auth_type,
1297 call->conn->auth_state.auth_level,
1298 derpc_transport_string_by_transport(transport),
1300 return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
1303 pull = ndr_pull_init_blob(&call->pkt.u.request.stub_and_verifier, call);
1304 NT_STATUS_HAVE_NO_MEMORY(pull);
1306 pull->flags |= LIBNDR_FLAG_REF_ALLOC;
1308 call->context = context;
1309 call->ndr_pull = pull;
1311 if (!(call->pkt.drep[0] & DCERPC_DREP_LE)) {
1312 pull->flags |= LIBNDR_FLAG_BIGENDIAN;
1315 status = dcesrv_check_verification_trailer(call);
1316 if (!NT_STATUS_IS_OK(status)) {
1317 uint32_t faultcode = DCERPC_FAULT_OTHER;
1318 if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
1319 faultcode = DCERPC_FAULT_ACCESS_DENIED;
1321 DEBUG(10, ("dcesrv_check_verification_trailer failed: %s\n",
1322 nt_errstr(status)));
1323 return dcesrv_fault(call, faultcode);
1326 /* unravel the NDR for the packet */
1327 status = context->iface->ndr_pull(call, call, pull, &call->r);
1328 if (!NT_STATUS_IS_OK(status)) {
1329 if (call->fault_code == DCERPC_FAULT_OP_RNG_ERROR) {
1330 /* we got an unknown call */
1331 DEBUG(3,(__location__ ": Unknown RPC call %u on %s\n",
1332 call->pkt.u.request.opnum, context->iface->name));
1333 dcesrv_save_call(call, "unknown");
1335 dcesrv_save_call(call, "pullfail");
1337 return dcesrv_fault(call, call->fault_code);
1340 if (pull->offset != pull->data_size) {
1341 dcesrv_save_call(call, "extrabytes");
1342 DEBUG(3,("Warning: %d extra bytes in incoming RPC request\n",
1343 pull->data_size - pull->offset));
1346 /* call the dispatch function */
1347 status = context->iface->dispatch(call, call, call->r);
1348 if (!NT_STATUS_IS_OK(status)) {
1349 DEBUG(5,("dcerpc fault in call %s:%02x - %s\n",
1350 context->iface->name,
1351 call->pkt.u.request.opnum,
1352 dcerpc_errstr(pull, call->fault_code)));
1353 return dcesrv_fault(call, call->fault_code);
1356 /* add the call to the pending list */
1357 dcesrv_call_set_list(call, DCESRV_LIST_PENDING_CALL_LIST);
1359 if (call->state_flags & DCESRV_CALL_STATE_FLAG_ASYNC) {
1360 return NT_STATUS_OK;
1363 return dcesrv_reply(call);
1368 remove the call from the right list when freed
1370 static int dcesrv_call_dequeue(struct dcesrv_call_state *call)
1372 dcesrv_call_set_list(call, DCESRV_LIST_NONE);
1376 _PUBLIC_ const struct tsocket_address *dcesrv_connection_get_local_address(struct dcesrv_connection *conn)
1378 return conn->local_address;
1381 _PUBLIC_ const struct tsocket_address *dcesrv_connection_get_remote_address(struct dcesrv_connection *conn)
1383 return conn->remote_address;
1387 process some input to a dcerpc endpoint server.
1389 static NTSTATUS dcesrv_process_ncacn_packet(struct dcesrv_connection *dce_conn,
1390 struct ncacn_packet *pkt,
1394 struct dcesrv_call_state *call;
1396 call = talloc_zero(dce_conn, struct dcesrv_call_state);
1398 data_blob_free(&blob);
1400 return NT_STATUS_NO_MEMORY;
1402 call->conn = dce_conn;
1403 call->event_ctx = dce_conn->event_ctx;
1404 call->msg_ctx = dce_conn->msg_ctx;
1405 call->state_flags = call->conn->state_flags;
1406 call->time = timeval_current();
1407 call->list = DCESRV_LIST_NONE;
1409 talloc_steal(call, pkt);
1410 talloc_steal(call, blob.data);
1413 talloc_set_destructor(call, dcesrv_call_dequeue);
1415 if (call->conn->allow_bind) {
1417 * Only one bind is possible per connection
1419 call->conn->allow_bind = false;
1420 return dcesrv_bind(call);
1423 /* we have to check the signing here, before combining the
1425 if (call->pkt.ptype == DCERPC_PKT_REQUEST) {
1426 if (!call->conn->allow_request) {
1427 return dcesrv_fault_disconnect(call,
1428 DCERPC_NCA_S_PROTO_ERROR);
1431 status = dcerpc_verify_ncacn_packet_header(&call->pkt,
1433 call->pkt.u.request.stub_and_verifier.length,
1434 0, /* required_flags */
1435 DCERPC_PFC_FLAG_FIRST |
1436 DCERPC_PFC_FLAG_LAST |
1437 DCERPC_PFC_FLAG_PENDING_CANCEL |
1438 0x08 | /* this is not defined, but should be ignored */
1439 DCERPC_PFC_FLAG_CONC_MPX |
1440 DCERPC_PFC_FLAG_DID_NOT_EXECUTE |
1441 DCERPC_PFC_FLAG_MAYBE |
1442 DCERPC_PFC_FLAG_OBJECT_UUID);
1443 if (!NT_STATUS_IS_OK(status)) {
1444 return dcesrv_fault_disconnect(call,
1445 DCERPC_NCA_S_PROTO_ERROR);
1448 if (!dcesrv_auth_request(call, &blob)) {
1449 return dcesrv_fault(call, DCERPC_FAULT_ACCESS_DENIED);
1453 /* see if this is a continued packet */
1454 if (call->pkt.ptype == DCERPC_PKT_REQUEST &&
1455 !(call->pkt.pfc_flags & DCERPC_PFC_FLAG_FIRST)) {
1456 struct dcesrv_call_state *call2 = call;
1457 uint32_t alloc_size;
1459 /* this is a continuation of an existing call - find the call
1460 then tack it on the end */
1461 call = dcesrv_find_fragmented_call(dce_conn, call2->pkt.call_id);
1463 return dcesrv_fault_disconnect(call2,
1464 DCERPC_NCA_S_PROTO_ERROR);
1467 if (call->pkt.ptype != call2->pkt.ptype) {
1468 /* trying to play silly buggers are we? */
1469 return dcesrv_fault_disconnect(call,
1470 DCERPC_NCA_S_PROTO_ERROR);
1472 if (memcmp(call->pkt.drep, call2->pkt.drep, sizeof(pkt->drep)) != 0) {
1473 return dcesrv_fault_disconnect(call,
1474 DCERPC_NCA_S_PROTO_ERROR);
1476 if (call->pkt.call_id != call2->pkt.call_id) {
1477 return dcesrv_fault_disconnect(call,
1478 DCERPC_NCA_S_PROTO_ERROR);
1480 if (call->pkt.u.request.context_id != call2->pkt.u.request.context_id) {
1481 return dcesrv_fault_disconnect(call,
1482 DCERPC_NCA_S_PROTO_ERROR);
1484 if (call->pkt.u.request.opnum != call2->pkt.u.request.opnum) {
1485 return dcesrv_fault_disconnect(call,
1486 DCERPC_NCA_S_PROTO_ERROR);
1489 alloc_size = call->pkt.u.request.stub_and_verifier.length +
1490 call2->pkt.u.request.stub_and_verifier.length;
1491 if (call->pkt.u.request.alloc_hint > alloc_size) {
1492 alloc_size = call->pkt.u.request.alloc_hint;
1495 call->pkt.u.request.stub_and_verifier.data =
1496 talloc_realloc(call,
1497 call->pkt.u.request.stub_and_verifier.data,
1498 uint8_t, alloc_size);
1499 if (!call->pkt.u.request.stub_and_verifier.data) {
1500 return dcesrv_fault(call2, DCERPC_FAULT_OTHER);
1502 memcpy(call->pkt.u.request.stub_and_verifier.data +
1503 call->pkt.u.request.stub_and_verifier.length,
1504 call2->pkt.u.request.stub_and_verifier.data,
1505 call2->pkt.u.request.stub_and_verifier.length);
1506 call->pkt.u.request.stub_and_verifier.length +=
1507 call2->pkt.u.request.stub_and_verifier.length;
1509 call->pkt.pfc_flags |= (call2->pkt.pfc_flags & DCERPC_PFC_FLAG_LAST);
1514 /* this may not be the last pdu in the chain - if its isn't then
1515 just put it on the incoming_fragmented_call_list and wait for the rest */
1516 if (call->pkt.ptype == DCERPC_PKT_REQUEST &&
1517 !(call->pkt.pfc_flags & DCERPC_PFC_FLAG_LAST)) {
1518 dcesrv_call_set_list(call, DCESRV_LIST_FRAGMENTED_CALL_LIST);
1519 return NT_STATUS_OK;
1522 /* This removes any fragments we may have had stashed away */
1523 dcesrv_call_set_list(call, DCESRV_LIST_NONE);
1525 switch (call->pkt.ptype) {
1526 case DCERPC_PKT_BIND:
1527 status = dcesrv_bind_nak(call,
1528 DCERPC_BIND_NAK_REASON_NOT_SPECIFIED);
1530 case DCERPC_PKT_AUTH3:
1531 status = dcesrv_auth3(call);
1533 case DCERPC_PKT_ALTER:
1534 status = dcesrv_alter(call);
1536 case DCERPC_PKT_REQUEST:
1537 status = dcesrv_request(call);
1540 status = dcesrv_fault_disconnect(call, DCERPC_NCA_S_PROTO_ERROR);
1544 /* if we are going to be sending a reply then add
1545 it to the list of pending calls. We add it to the end to keep the call
1546 list in the order we will answer */
1547 if (!NT_STATUS_IS_OK(status)) {
1554 _PUBLIC_ NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
1555 struct loadparm_context *lp_ctx,
1556 const char **endpoint_servers, struct dcesrv_context **_dce_ctx)
1559 struct dcesrv_context *dce_ctx;
1562 if (!endpoint_servers) {
1563 DEBUG(0,("dcesrv_init_context: no endpoint servers configured\n"));
1564 return NT_STATUS_INTERNAL_ERROR;
1567 dce_ctx = talloc_zero(mem_ctx, struct dcesrv_context);
1568 NT_STATUS_HAVE_NO_MEMORY(dce_ctx);
1570 if (uid_wrapper_enabled()) {
1571 setenv("UID_WRAPPER_MYUID", "1", 1);
1573 dce_ctx->initial_euid = geteuid();
1574 if (uid_wrapper_enabled()) {
1575 unsetenv("UID_WRAPPER_MYUID");
1578 dce_ctx->endpoint_list = NULL;
1579 dce_ctx->lp_ctx = lp_ctx;
1580 dce_ctx->assoc_groups_idr = idr_init(dce_ctx);
1581 NT_STATUS_HAVE_NO_MEMORY(dce_ctx->assoc_groups_idr);
1582 dce_ctx->broken_connections = NULL;
1584 for (i=0;endpoint_servers[i];i++) {
1585 const struct dcesrv_endpoint_server *ep_server;
1587 ep_server = dcesrv_ep_server_byname(endpoint_servers[i]);
1589 DEBUG(0,("dcesrv_init_context: failed to find endpoint server = '%s'\n", endpoint_servers[i]));
1590 return NT_STATUS_INTERNAL_ERROR;
1593 status = ep_server->init_server(dce_ctx, ep_server);
1594 if (!NT_STATUS_IS_OK(status)) {
1595 DEBUG(0,("dcesrv_init_context: failed to init endpoint server = '%s': %s\n", endpoint_servers[i],
1596 nt_errstr(status)));
1601 *_dce_ctx = dce_ctx;
1602 return NT_STATUS_OK;
1605 /* the list of currently registered DCERPC endpoint servers.
1607 static struct ep_server {
1608 struct dcesrv_endpoint_server *ep_server;
1609 } *ep_servers = NULL;
1610 static int num_ep_servers;
1613 register a DCERPC endpoint server.
1615 The 'name' can be later used by other backends to find the operations
1616 structure for this backend.
1618 The 'type' is used to specify whether this is for a disk, printer or IPC$ share
1620 _PUBLIC_ NTSTATUS dcerpc_register_ep_server(const void *_ep_server)
1622 const struct dcesrv_endpoint_server *ep_server = _ep_server;
1624 if (dcesrv_ep_server_byname(ep_server->name) != NULL) {
1625 /* its already registered! */
1626 DEBUG(0,("DCERPC endpoint server '%s' already registered\n",
1628 return NT_STATUS_OBJECT_NAME_COLLISION;
1631 ep_servers = realloc_p(ep_servers, struct ep_server, num_ep_servers+1);
1633 smb_panic("out of memory in dcerpc_register");
1636 ep_servers[num_ep_servers].ep_server = smb_xmemdup(ep_server, sizeof(*ep_server));
1637 ep_servers[num_ep_servers].ep_server->name = smb_xstrdup(ep_server->name);
1641 DEBUG(3,("DCERPC endpoint server '%s' registered\n",
1644 return NT_STATUS_OK;
1648 return the operations structure for a named backend of the specified type
1650 const struct dcesrv_endpoint_server *dcesrv_ep_server_byname(const char *name)
1654 for (i=0;i<num_ep_servers;i++) {
1655 if (strcmp(ep_servers[i].ep_server->name, name) == 0) {
1656 return ep_servers[i].ep_server;
1663 void dcerpc_server_init(struct loadparm_context *lp_ctx)
1665 static bool initialized;
1666 #define _MODULE_PROTO(init) extern NTSTATUS init(void);
1667 STATIC_dcerpc_server_MODULES_PROTO;
1668 init_module_fn static_init[] = { STATIC_dcerpc_server_MODULES };
1669 init_module_fn *shared_init;
1676 shared_init = load_samba_modules(NULL, "dcerpc_server");
1678 run_init_functions(static_init);
1679 run_init_functions(shared_init);
1681 talloc_free(shared_init);
1685 return the DCERPC module version, and the size of some critical types
1686 This can be used by endpoint server modules to either detect compilation errors, or provide
1687 multiple implementations for different smbd compilation options in one module
1689 const struct dcesrv_critical_sizes *dcerpc_module_version(void)
1691 static const struct dcesrv_critical_sizes critical_sizes = {
1692 DCERPC_MODULE_VERSION,
1693 sizeof(struct dcesrv_context),
1694 sizeof(struct dcesrv_endpoint),
1695 sizeof(struct dcesrv_endpoint_server),
1696 sizeof(struct dcesrv_interface),
1697 sizeof(struct dcesrv_if_list),
1698 sizeof(struct dcesrv_connection),
1699 sizeof(struct dcesrv_call_state),
1700 sizeof(struct dcesrv_auth),
1701 sizeof(struct dcesrv_handle)
1704 return &critical_sizes;
1707 static void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn, const char *reason)
1709 struct dcesrv_context *dce_ctx = dce_conn->dce_ctx;
1710 struct stream_connection *srv_conn;
1711 srv_conn = talloc_get_type(dce_conn->transport.private_data,
1712 struct stream_connection);
1714 dce_conn->allow_bind = false;
1715 dce_conn->allow_auth3 = false;
1716 dce_conn->allow_alter = false;
1717 dce_conn->allow_request = false;
1719 if (dce_conn->pending_call_list == NULL) {
1720 char *full_reason = talloc_asprintf(dce_conn, "dcesrv: %s", reason);
1722 DLIST_REMOVE(dce_ctx->broken_connections, dce_conn);
1723 stream_terminate_connection(srv_conn, full_reason ? full_reason : reason);
1727 if (dce_conn->terminate != NULL) {
1731 DEBUG(3,("dcesrv: terminating connection due to '%s' defered due to pending calls\n",
1733 dce_conn->terminate = talloc_strdup(dce_conn, reason);
1734 if (dce_conn->terminate == NULL) {
1735 dce_conn->terminate = "dcesrv: defered terminating connection - no memory";
1737 DLIST_ADD_END(dce_ctx->broken_connections, dce_conn);
1740 static void dcesrv_cleanup_broken_connections(struct dcesrv_context *dce_ctx)
1742 struct dcesrv_connection *cur, *next;
1744 next = dce_ctx->broken_connections;
1745 while (next != NULL) {
1749 if (cur->state_flags & DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL) {
1750 struct dcesrv_connection_context *context_cur, *context_next;
1752 context_next = cur->contexts;
1753 while (context_next != NULL) {
1754 context_cur = context_next;
1755 context_next = context_cur->next;
1757 dcesrv_connection_context_destructor(context_cur);
1761 dcesrv_terminate_connection(cur, cur->terminate);
1765 /* We need this include to be able to compile on some plateforms
1766 * (ie. freebsd 7.2) as it seems that <sys/uio.h> is not included
1768 * It has to be that deep because otherwise we have a conflict on
1769 * const struct dcesrv_interface declaration.
1770 * This is mostly due to socket_wrapper defining #define bind swrap_bind
1771 * which conflict with the bind used before.
1773 #include "system/network.h"
1775 struct dcesrv_sock_reply_state {
1776 struct dcesrv_connection *dce_conn;
1777 struct dcesrv_call_state *call;
1781 static void dcesrv_sock_reply_done(struct tevent_req *subreq);
1782 static void dcesrv_call_terminate_step1(struct tevent_req *subreq);
1784 static void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn)
1786 struct dcesrv_call_state *call;
1788 call = dce_conn->call_list;
1789 if (!call || !call->replies) {
1793 while (call->replies) {
1794 struct data_blob_list_item *rep = call->replies;
1795 struct dcesrv_sock_reply_state *substate;
1796 struct tevent_req *subreq;
1798 substate = talloc_zero(call, struct dcesrv_sock_reply_state);
1800 dcesrv_terminate_connection(dce_conn, "no memory");
1804 substate->dce_conn = dce_conn;
1805 substate->call = NULL;
1807 DLIST_REMOVE(call->replies, rep);
1809 if (call->replies == NULL && call->terminate_reason == NULL) {
1810 substate->call = call;
1813 substate->iov.iov_base = (void *) rep->blob.data;
1814 substate->iov.iov_len = rep->blob.length;
1816 subreq = tstream_writev_queue_send(substate,
1817 dce_conn->event_ctx,
1819 dce_conn->send_queue,
1822 dcesrv_terminate_connection(dce_conn, "no memory");
1825 tevent_req_set_callback(subreq, dcesrv_sock_reply_done,
1829 if (call->terminate_reason != NULL) {
1830 struct tevent_req *subreq;
1832 subreq = tevent_queue_wait_send(call,
1833 dce_conn->event_ctx,
1834 dce_conn->send_queue);
1836 dcesrv_terminate_connection(dce_conn, __location__);
1839 tevent_req_set_callback(subreq, dcesrv_call_terminate_step1,
1843 DLIST_REMOVE(call->conn->call_list, call);
1844 call->list = DCESRV_LIST_NONE;
1847 static void dcesrv_sock_reply_done(struct tevent_req *subreq)
1849 struct dcesrv_sock_reply_state *substate = tevent_req_callback_data(subreq,
1850 struct dcesrv_sock_reply_state);
1854 struct dcesrv_call_state *call = substate->call;
1856 ret = tstream_writev_queue_recv(subreq, &sys_errno);
1857 TALLOC_FREE(subreq);
1859 status = map_nt_error_from_unix_common(sys_errno);
1860 dcesrv_terminate_connection(substate->dce_conn, nt_errstr(status));
1864 talloc_free(substate);
1870 static void dcesrv_call_terminate_step2(struct tevent_req *subreq);
1872 static void dcesrv_call_terminate_step1(struct tevent_req *subreq)
1874 struct dcesrv_call_state *call = tevent_req_callback_data(subreq,
1875 struct dcesrv_call_state);
1879 /* make sure we stop send queue before removing subreq */
1880 tevent_queue_stop(call->conn->send_queue);
1882 ok = tevent_queue_wait_recv(subreq);
1883 TALLOC_FREE(subreq);
1885 dcesrv_terminate_connection(call->conn, __location__);
1889 /* disconnect after 200 usecs */
1890 tv = timeval_current_ofs_usec(200);
1891 subreq = tevent_wakeup_send(call, call->conn->event_ctx, tv);
1892 if (subreq == NULL) {
1893 dcesrv_terminate_connection(call->conn, __location__);
1896 tevent_req_set_callback(subreq, dcesrv_call_terminate_step2,
1900 static void dcesrv_call_terminate_step2(struct tevent_req *subreq)
1902 struct dcesrv_call_state *call = tevent_req_callback_data(subreq,
1903 struct dcesrv_call_state);
1906 ok = tevent_wakeup_recv(subreq);
1907 TALLOC_FREE(subreq);
1909 dcesrv_terminate_connection(call->conn, __location__);
1913 dcesrv_terminate_connection(call->conn, call->terminate_reason);
1916 struct dcesrv_socket_context {
1917 const struct dcesrv_endpoint *endpoint;
1918 struct dcesrv_context *dcesrv_ctx;
1922 static void dcesrv_read_fragment_done(struct tevent_req *subreq);
1924 static void dcesrv_sock_accept(struct stream_connection *srv_conn)
1927 struct dcesrv_socket_context *dcesrv_sock =
1928 talloc_get_type(srv_conn->private_data, struct dcesrv_socket_context);
1929 enum dcerpc_transport_t transport =
1930 dcerpc_binding_get_transport(dcesrv_sock->endpoint->ep_description);
1931 struct dcesrv_connection *dcesrv_conn = NULL;
1933 struct tevent_req *subreq;
1934 struct loadparm_context *lp_ctx = dcesrv_sock->dcesrv_ctx->lp_ctx;
1936 dcesrv_cleanup_broken_connections(dcesrv_sock->dcesrv_ctx);
1938 if (!srv_conn->session_info) {
1939 status = auth_anonymous_session_info(srv_conn,
1941 &srv_conn->session_info);
1942 if (!NT_STATUS_IS_OK(status)) {
1943 DEBUG(0,("dcesrv_sock_accept: auth_anonymous_session_info failed: %s\n",
1944 nt_errstr(status)));
1945 stream_terminate_connection(srv_conn, nt_errstr(status));
1950 status = dcesrv_endpoint_connect(dcesrv_sock->dcesrv_ctx,
1952 dcesrv_sock->endpoint,
1953 srv_conn->session_info,
1954 srv_conn->event.ctx,
1956 srv_conn->server_id,
1957 DCESRV_CALL_STATE_FLAG_MAY_ASYNC,
1959 if (!NT_STATUS_IS_OK(status)) {
1960 DEBUG(0,("dcesrv_sock_accept: dcesrv_endpoint_connect failed: %s\n",
1961 nt_errstr(status)));
1962 stream_terminate_connection(srv_conn, nt_errstr(status));
1966 dcesrv_conn->transport.private_data = srv_conn;
1967 dcesrv_conn->transport.report_output_data = dcesrv_sock_report_output_data;
1969 TALLOC_FREE(srv_conn->event.fde);
1971 dcesrv_conn->send_queue = tevent_queue_create(dcesrv_conn, "dcesrv send queue");
1972 if (!dcesrv_conn->send_queue) {
1973 status = NT_STATUS_NO_MEMORY;
1974 DEBUG(0,("dcesrv_sock_accept: tevent_queue_create(%s)\n",
1975 nt_errstr(status)));
1976 stream_terminate_connection(srv_conn, nt_errstr(status));
1980 if (transport == NCACN_NP) {
1981 dcesrv_conn->auth_state.session_key = dcesrv_inherited_session_key;
1982 dcesrv_conn->stream = talloc_move(dcesrv_conn,
1983 &srv_conn->tstream);
1985 ret = tstream_bsd_existing_socket(dcesrv_conn,
1986 socket_get_fd(srv_conn->socket),
1987 &dcesrv_conn->stream);
1989 status = map_nt_error_from_unix_common(errno);
1990 DEBUG(0, ("dcesrv_sock_accept: "
1991 "failed to setup tstream: %s\n",
1992 nt_errstr(status)));
1993 stream_terminate_connection(srv_conn, nt_errstr(status));
1996 socket_set_flags(srv_conn->socket, SOCKET_FLAG_NOCLOSE);
1999 dcesrv_conn->local_address = srv_conn->local_address;
2000 dcesrv_conn->remote_address = srv_conn->remote_address;
2002 if (transport == NCALRPC) {
2006 ret = getpeereid(socket_get_fd(srv_conn->socket), &uid, &gid);
2008 status = map_nt_error_from_unix_common(errno);
2009 DEBUG(0, ("dcesrv_sock_accept: "
2010 "getpeereid() failed for NCALRPC: %s\n",
2011 nt_errstr(status)));
2012 stream_terminate_connection(srv_conn, nt_errstr(status));
2015 if (uid == dcesrv_conn->dce_ctx->initial_euid) {
2016 struct tsocket_address *r = NULL;
2018 ret = tsocket_address_unix_from_path(dcesrv_conn,
2019 "/root/ncalrpc_as_system",
2022 status = map_nt_error_from_unix_common(errno);
2023 DEBUG(0, ("dcesrv_sock_accept: "
2024 "tsocket_address_unix_from_path() failed for NCALRPC: %s\n",
2025 nt_errstr(status)));
2026 stream_terminate_connection(srv_conn, nt_errstr(status));
2029 dcesrv_conn->remote_address = r;
2033 srv_conn->private_data = dcesrv_conn;
2035 irpc_add_name(srv_conn->msg_ctx, "rpc_server");
2037 subreq = dcerpc_read_ncacn_packet_send(dcesrv_conn,
2038 dcesrv_conn->event_ctx,
2039 dcesrv_conn->stream);
2041 status = NT_STATUS_NO_MEMORY;
2042 DEBUG(0,("dcesrv_sock_accept: dcerpc_read_fragment_buffer_send(%s)\n",
2043 nt_errstr(status)));
2044 stream_terminate_connection(srv_conn, nt_errstr(status));
2047 tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dcesrv_conn);
2052 static void dcesrv_read_fragment_done(struct tevent_req *subreq)
2054 struct dcesrv_connection *dce_conn = tevent_req_callback_data(subreq,
2055 struct dcesrv_connection);
2056 struct dcesrv_context *dce_ctx = dce_conn->dce_ctx;
2057 struct ncacn_packet *pkt;
2061 if (dce_conn->terminate) {
2063 * if the current connection is broken
2064 * we need to clean it up before any other connection
2066 dcesrv_terminate_connection(dce_conn, dce_conn->terminate);
2067 dcesrv_cleanup_broken_connections(dce_ctx);
2071 dcesrv_cleanup_broken_connections(dce_ctx);
2073 status = dcerpc_read_ncacn_packet_recv(subreq, dce_conn,
2075 TALLOC_FREE(subreq);
2076 if (!NT_STATUS_IS_OK(status)) {
2077 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
2081 status = dcesrv_process_ncacn_packet(dce_conn, pkt, buffer);
2082 if (!NT_STATUS_IS_OK(status)) {
2083 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
2087 subreq = dcerpc_read_ncacn_packet_send(dce_conn,
2088 dce_conn->event_ctx,
2091 status = NT_STATUS_NO_MEMORY;
2092 dcesrv_terminate_connection(dce_conn, nt_errstr(status));
2095 tevent_req_set_callback(subreq, dcesrv_read_fragment_done, dce_conn);
2098 static void dcesrv_sock_recv(struct stream_connection *conn, uint16_t flags)
2100 struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
2101 struct dcesrv_connection);
2102 dcesrv_terminate_connection(dce_conn, "dcesrv_sock_recv triggered");
2105 static void dcesrv_sock_send(struct stream_connection *conn, uint16_t flags)
2107 struct dcesrv_connection *dce_conn = talloc_get_type(conn->private_data,
2108 struct dcesrv_connection);
2109 dcesrv_terminate_connection(dce_conn, "dcesrv_sock_send triggered");
2113 static const struct stream_server_ops dcesrv_stream_ops = {
2115 .accept_connection = dcesrv_sock_accept,
2116 .recv_handler = dcesrv_sock_recv,
2117 .send_handler = dcesrv_sock_send,
2120 static NTSTATUS dcesrv_add_ep_unix(struct dcesrv_context *dce_ctx,
2121 struct loadparm_context *lp_ctx,
2122 struct dcesrv_endpoint *e,
2123 struct tevent_context *event_ctx, const struct model_ops *model_ops)
2125 struct dcesrv_socket_context *dcesrv_sock;
2128 const char *endpoint;
2130 dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
2131 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
2133 /* remember the endpoint of this socket */
2134 dcesrv_sock->endpoint = e;
2135 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
2137 endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
2139 status = stream_setup_socket(dcesrv_sock, event_ctx, lp_ctx,
2140 model_ops, &dcesrv_stream_ops,
2141 "unix", endpoint, &port,
2142 lpcfg_socket_options(lp_ctx),
2144 if (!NT_STATUS_IS_OK(status)) {
2145 DEBUG(0,("service_setup_stream_socket(path=%s) failed - %s\n",
2146 endpoint, nt_errstr(status)));
2152 static NTSTATUS dcesrv_add_ep_ncalrpc(struct dcesrv_context *dce_ctx,
2153 struct loadparm_context *lp_ctx,
2154 struct dcesrv_endpoint *e,
2155 struct tevent_context *event_ctx, const struct model_ops *model_ops)
2157 struct dcesrv_socket_context *dcesrv_sock;
2161 const char *endpoint;
2163 endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
2165 if (endpoint == NULL) {
2167 * No identifier specified: use DEFAULT.
2169 * TODO: DO NOT hardcode this value anywhere else. Rather, specify
2170 * no endpoint and let the epmapper worry about it.
2172 endpoint = "DEFAULT";
2173 status = dcerpc_binding_set_string_option(e->ep_description,
2176 if (!NT_STATUS_IS_OK(status)) {
2177 DEBUG(0,("dcerpc_binding_set_string_option() failed - %s\n",
2178 nt_errstr(status)));
2183 full_path = talloc_asprintf(dce_ctx, "%s/%s", lpcfg_ncalrpc_dir(lp_ctx),
2186 dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
2187 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
2189 /* remember the endpoint of this socket */
2190 dcesrv_sock->endpoint = e;
2191 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
2193 status = stream_setup_socket(dcesrv_sock, event_ctx, lp_ctx,
2194 model_ops, &dcesrv_stream_ops,
2195 "unix", full_path, &port,
2196 lpcfg_socket_options(lp_ctx),
2198 if (!NT_STATUS_IS_OK(status)) {
2199 DEBUG(0,("service_setup_stream_socket(identifier=%s,path=%s) failed - %s\n",
2200 endpoint, full_path, nt_errstr(status)));
2205 static NTSTATUS dcesrv_add_ep_np(struct dcesrv_context *dce_ctx,
2206 struct loadparm_context *lp_ctx,
2207 struct dcesrv_endpoint *e,
2208 struct tevent_context *event_ctx, const struct model_ops *model_ops)
2210 struct dcesrv_socket_context *dcesrv_sock;
2212 const char *endpoint;
2214 endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
2215 if (endpoint == NULL) {
2216 DEBUG(0, ("Endpoint mandatory for named pipes\n"));
2217 return NT_STATUS_INVALID_PARAMETER;
2220 dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
2221 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
2223 /* remember the endpoint of this socket */
2224 dcesrv_sock->endpoint = e;
2225 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
2227 status = tstream_setup_named_pipe(dce_ctx, event_ctx, lp_ctx,
2228 model_ops, &dcesrv_stream_ops,
2231 if (!NT_STATUS_IS_OK(status)) {
2232 DEBUG(0,("stream_setup_named_pipe(pipe=%s) failed - %s\n",
2233 endpoint, nt_errstr(status)));
2237 return NT_STATUS_OK;
2241 add a socket address to the list of events, one event per dcerpc endpoint
2243 static NTSTATUS add_socket_rpc_tcp_iface(struct dcesrv_context *dce_ctx, struct dcesrv_endpoint *e,
2244 struct tevent_context *event_ctx, const struct model_ops *model_ops,
2245 const char *address)
2247 struct dcesrv_socket_context *dcesrv_sock;
2250 const char *endpoint;
2253 endpoint = dcerpc_binding_get_string_option(e->ep_description, "endpoint");
2254 if (endpoint != NULL) {
2255 port = atoi(endpoint);
2258 dcesrv_sock = talloc_zero(event_ctx, struct dcesrv_socket_context);
2259 NT_STATUS_HAVE_NO_MEMORY(dcesrv_sock);
2261 /* remember the endpoint of this socket */
2262 dcesrv_sock->endpoint = e;
2263 dcesrv_sock->dcesrv_ctx = talloc_reference(dcesrv_sock, dce_ctx);
2265 status = stream_setup_socket(dcesrv_sock, event_ctx, dce_ctx->lp_ctx,
2266 model_ops, &dcesrv_stream_ops,
2267 "ip", address, &port,
2268 lpcfg_socket_options(dce_ctx->lp_ctx),
2270 if (!NT_STATUS_IS_OK(status)) {
2271 DEBUG(0,("service_setup_stream_socket(address=%s,port=%u) failed - %s\n",
2272 address, port, nt_errstr(status)));
2276 snprintf(port_str, sizeof(port_str), "%u", port);
2278 status = dcerpc_binding_set_string_option(e->ep_description,
2279 "endpoint", port_str);
2280 if (!NT_STATUS_IS_OK(status)) {
2281 DEBUG(0,("dcerpc_binding_set_string_option(endpoint, %s) failed - %s\n",
2282 port_str, nt_errstr(status)));
2286 return NT_STATUS_OK;
2289 #include "lib/socket/netif.h" /* Included here to work around the fact that socket_wrapper redefines bind() */
2291 static NTSTATUS dcesrv_add_ep_tcp(struct dcesrv_context *dce_ctx,
2292 struct loadparm_context *lp_ctx,
2293 struct dcesrv_endpoint *e,
2294 struct tevent_context *event_ctx, const struct model_ops *model_ops)
2298 /* Add TCP/IP sockets */
2299 if (lpcfg_interfaces(lp_ctx) && lpcfg_bind_interfaces_only(lp_ctx)) {
2302 struct interface *ifaces;
2304 load_interface_list(dce_ctx, lp_ctx, &ifaces);
2306 num_interfaces = iface_list_count(ifaces);
2307 for(i = 0; i < num_interfaces; i++) {
2308 const char *address = iface_list_n_ip(ifaces, i);
2309 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, address);
2310 NT_STATUS_NOT_OK_RETURN(status);
2316 wcard = iface_list_wildcard(dce_ctx);
2317 NT_STATUS_HAVE_NO_MEMORY(wcard);
2318 for (i=0; wcard[i]; i++) {
2319 status = add_socket_rpc_tcp_iface(dce_ctx, e, event_ctx, model_ops, wcard[i]);
2320 if (NT_STATUS_IS_OK(status)) {
2325 if (num_binds == 0) {
2326 return NT_STATUS_INVALID_PARAMETER_MIX;
2330 return NT_STATUS_OK;
2333 NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
2334 struct loadparm_context *lp_ctx,
2335 struct dcesrv_endpoint *e,
2336 struct tevent_context *event_ctx,
2337 const struct model_ops *model_ops)
2339 enum dcerpc_transport_t transport =
2340 dcerpc_binding_get_transport(e->ep_description);
2342 switch (transport) {
2343 case NCACN_UNIX_STREAM:
2344 return dcesrv_add_ep_unix(dce_ctx, lp_ctx, e, event_ctx, model_ops);
2347 return dcesrv_add_ep_ncalrpc(dce_ctx, lp_ctx, e, event_ctx, model_ops);
2350 return dcesrv_add_ep_tcp(dce_ctx, lp_ctx, e, event_ctx, model_ops);
2353 return dcesrv_add_ep_np(dce_ctx, lp_ctx, e, event_ctx, model_ops);
2356 return NT_STATUS_NOT_SUPPORTED;
2362 * retrieve credentials from a dce_call
2364 _PUBLIC_ struct cli_credentials *dcesrv_call_credentials(struct dcesrv_call_state *dce_call)
2366 return dce_call->conn->auth_state.session_info->credentials;
2370 * returns true if this is an authenticated call
2372 _PUBLIC_ bool dcesrv_call_authenticated(struct dcesrv_call_state *dce_call)
2374 enum security_user_level level;
2375 level = security_session_user_level(dce_call->conn->auth_state.session_info, NULL);
2376 return level >= SECURITY_USER;
2380 * retrieve account_name for a dce_call
2382 _PUBLIC_ const char *dcesrv_call_account_name(struct dcesrv_call_state *dce_call)
2384 return dce_call->context->conn->auth_state.session_info->info->account_name;