2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Almost completely rewritten by (C) Jeremy Allison 2005 - 2010
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 /* this module apparently provides an implementation of DCE/RPC over a
21 * named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
22 * documentation are available (in on-line form) from the X-Open group.
24 * this module should provide a level of abstraction between SMB
25 * and DCE/RPC, while minimising the amount of mallocs, unnecessary
26 * data copies, and network traffic.
31 #include "system/filesys.h"
32 #include "srv_pipe_internal.h"
33 #include "../librpc/gen_ndr/dcerpc.h"
34 #include "../librpc/rpc/rpc_common.h"
35 #include "dcesrv_auth_generic.h"
36 #include "rpc_server.h"
38 #include "smbd/smbd.h"
41 #include "rpc_server/srv_pipe.h"
42 #include "rpc_server/rpc_contexts.h"
43 #include "lib/param/param.h"
44 #include "librpc/ndr/ndr_table.h"
45 #include "auth/gensec/gensec.h"
46 #include "librpc/ndr/ndr_dcerpc.h"
49 #define DBGC_CLASS DBGC_RPC_SRV
52 * Dump everything from the start of the end up of the provided data
53 * into a file, but only at debug level >= 50
55 static void dump_pdu_region(const char *name
, int v
,
56 DATA_BLOB
*data
, size_t start
, size_t end
)
62 if (DEBUGLEVEL
< 50) return;
64 if (start
> data
->length
|| end
> data
->length
|| start
> end
) return;
66 for (i
= 1; i
< 100; i
++) {
68 fname
= talloc_asprintf(talloc_tos(),
72 fname
= talloc_asprintf(talloc_tos(),
79 fd
= open(fname
, O_WRONLY
|O_CREAT
|O_EXCL
, 0644);
80 if (fd
!= -1 || errno
!= EEXIST
) break;
83 sz
= write(fd
, data
->data
+ start
, end
- start
);
85 if ((sz
!= end
- start
) || (i
!= 0) ) {
86 DEBUG(0, ("Error writing/closing %s: %ld!=%ld %d\n",
87 fname
, (unsigned long)sz
,
88 (unsigned long)end
- start
, i
));
90 DEBUG(0,("created %s\n", fname
));
96 static DATA_BLOB
generic_session_key(void)
98 return data_blob_const("SystemLibraryDTC", 16);
101 /*******************************************************************
102 Generate the next PDU to be returned from the data.
103 ********************************************************************/
105 static NTSTATUS
create_next_packet(TALLOC_CTX
*mem_ctx
,
106 struct pipe_auth_data
*auth
,
109 size_t data_sent_length
,
113 union dcerpc_payload u
;
122 ZERO_STRUCT(u
.response
);
124 /* Set up rpc packet pfc flags. */
125 if (data_sent_length
== 0) {
126 pfc_flags
= DCERPC_PFC_FLAG_FIRST
;
131 /* Work out how much we can fit in a single PDU. */
132 data_left
= rdata
->length
- data_sent_length
;
134 /* Ensure there really is data left to send. */
136 DEBUG(0, ("No data left to send !\n"));
137 return NT_STATUS_BUFFER_TOO_SMALL
;
140 status
= dcerpc_guess_sizes(auth
,
141 DCERPC_RESPONSE_LENGTH
,
143 RPC_MAX_PDU_FRAG_LEN
,
144 SERVER_NDR_PADDING_SIZE
,
145 &data_to_send
, &frag_len
,
146 &auth_len
, &pad_len
);
147 if (!NT_STATUS_IS_OK(status
)) {
151 /* Set up the alloc hint. This should be the data left to send. */
152 u
.response
.alloc_hint
= data_left
;
154 /* Work out if this PDU will be the last. */
155 if (data_sent_length
+ data_to_send
>= rdata
->length
) {
156 pfc_flags
|= DCERPC_PFC_FLAG_LAST
;
159 /* Prepare data to be NDR encoded. */
160 u
.response
.stub_and_verifier
=
161 data_blob_const(rdata
->data
+ data_sent_length
, data_to_send
);
163 /* Store the packet in the data stream. */
164 status
= dcerpc_push_ncacn_packet(mem_ctx
, DCERPC_PKT_RESPONSE
,
165 pfc_flags
, auth_len
, call_id
,
167 if (!NT_STATUS_IS_OK(status
)) {
168 DEBUG(0, ("Failed to marshall RPC Packet.\n"));
173 /* Set the proper length on the pdu, including padding.
174 * Only needed if an auth trailer will be appended. */
175 dcerpc_set_frag_length(frag
, frag
->length
177 + DCERPC_AUTH_TRAILER_LENGTH
182 status
= dcerpc_add_auth_footer(auth
, pad_len
, frag
);
183 if (!NT_STATUS_IS_OK(status
)) {
184 data_blob_free(frag
);
189 *pdu_size
= data_to_send
;
193 /*******************************************************************
194 Generate the next PDU to be returned from the data in p->rdata.
195 ********************************************************************/
197 bool create_next_pdu(struct pipes_struct
*p
)
203 * If we're in the fault state, keep returning fault PDU's until
204 * the pipe gets closed. JRA.
206 if (p
->fault_state
) {
207 setup_fault_pdu(p
, NT_STATUS(p
->fault_state
));
211 status
= create_next_packet(p
->mem_ctx
, &p
->auth
,
212 p
->call_id
, &p
->out_data
.rdata
,
213 p
->out_data
.data_sent_length
,
214 &p
->out_data
.frag
, &pdu_size
);
215 if (!NT_STATUS_IS_OK(status
)) {
216 DEBUG(0, ("Failed to create packet with error %s, "
217 "(auth level %u / type %u)\n",
219 (unsigned int)p
->auth
.auth_level
,
220 (unsigned int)p
->auth
.auth_type
));
224 /* Setup the counts for this PDU. */
225 p
->out_data
.data_sent_length
+= pdu_size
;
226 p
->out_data
.current_pdu_sent
= 0;
231 static bool pipe_init_outgoing_data(struct pipes_struct
*p
);
233 /*******************************************************************
234 Marshall a bind_nak pdu.
235 *******************************************************************/
237 static bool setup_bind_nak(struct pipes_struct
*p
, struct ncacn_packet
*pkt
)
240 union dcerpc_payload u
;
242 /* Free any memory in the current return data buffer. */
243 pipe_init_outgoing_data(p
);
246 * Initialize a bind_nak header.
251 u
.bind_nak
.reject_reason
= 0;
254 * Marshall directly into the outgoing PDU space. We
255 * must do this as we need to set to the bind response
256 * header and are never sending more than one PDU here.
259 status
= dcerpc_push_ncacn_packet(p
->mem_ctx
,
261 DCERPC_PFC_FLAG_FIRST
|
262 DCERPC_PFC_FLAG_LAST
,
267 if (!NT_STATUS_IS_OK(status
)) {
271 p
->out_data
.data_sent_length
= 0;
272 p
->out_data
.current_pdu_sent
= 0;
274 TALLOC_FREE(p
->auth
.auth_ctx
);
275 p
->auth
.auth_level
= DCERPC_AUTH_LEVEL_NONE
;
276 p
->auth
.auth_type
= DCERPC_AUTH_TYPE_NONE
;
277 p
->pipe_bound
= False
;
282 /*******************************************************************
283 Marshall a fault pdu.
284 *******************************************************************/
286 bool setup_fault_pdu(struct pipes_struct
*p
, NTSTATUS fault_status
)
289 union dcerpc_payload u
;
291 /* Free any memory in the current return data buffer. */
292 pipe_init_outgoing_data(p
);
295 * Initialize a fault header.
300 u
.fault
.status
= NT_STATUS_V(fault_status
);
301 u
.fault
._pad
= data_blob_talloc_zero(p
->mem_ctx
, 4);
304 * Marshall directly into the outgoing PDU space. We
305 * must do this as we need to set to the bind response
306 * header and are never sending more than one PDU here.
309 status
= dcerpc_push_ncacn_packet(p
->mem_ctx
,
311 DCERPC_PFC_FLAG_FIRST
|
312 DCERPC_PFC_FLAG_LAST
|
313 DCERPC_PFC_FLAG_DID_NOT_EXECUTE
,
318 if (!NT_STATUS_IS_OK(status
)) {
322 p
->out_data
.data_sent_length
= 0;
323 p
->out_data
.current_pdu_sent
= 0;
328 /*******************************************************************
329 Ensure a bind request has the correct abstract & transfer interface.
330 Used to reject unknown binds from Win2k.
331 *******************************************************************/
333 static bool check_bind_req(struct pipes_struct
*p
,
334 struct ndr_syntax_id
* abstract
,
335 struct ndr_syntax_id
* transfer
,
338 struct pipe_rpc_fns
*context_fns
;
341 DEBUG(3,("check_bind_req for %s\n",
342 ndr_interface_name(&abstract
->uuid
,
343 abstract
->if_version
)));
345 /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
346 if (rpc_srv_pipe_exists_by_id(abstract
) &&
347 ndr_syntax_id_equal(transfer
, &ndr_transfer_syntax_ndr
)) {
348 DEBUG(3, ("check_bind_req: %s -> %s rpc service\n",
349 rpc_srv_get_pipe_cli_name(abstract
),
350 rpc_srv_get_pipe_srv_name(abstract
)));
355 ok
= init_pipe_handles(p
, abstract
);
357 DEBUG(1, ("Failed to init pipe handles!\n"));
361 context_fns
= talloc(p
, struct pipe_rpc_fns
);
362 if (context_fns
== NULL
) {
363 DEBUG(0,("check_bind_req: talloc() failed!\n"));
367 context_fns
->next
= context_fns
->prev
= NULL
;
368 context_fns
->n_cmds
= rpc_srv_get_pipe_num_cmds(abstract
);
369 context_fns
->cmds
= rpc_srv_get_pipe_cmds(abstract
);
370 context_fns
->context_id
= context_id
;
371 context_fns
->syntax
= *abstract
;
373 /* add to the list of open contexts */
375 DLIST_ADD( p
->contexts
, context_fns
);
381 * Is a named pipe known?
382 * @param[in] pipename Just the filename
383 * @result Do we want to serve this?
385 bool is_known_pipename(const char *pipename
, struct ndr_syntax_id
*syntax
)
389 if (lp_disable_spoolss() && strequal(pipename
, "spoolss")) {
390 DEBUG(10, ("refusing spoolss access\n"));
394 if (rpc_srv_get_pipe_interface_by_cli_name(pipename
, syntax
)) {
398 status
= smb_probe_module("rpc", pipename
);
399 if (!NT_STATUS_IS_OK(status
)) {
400 DEBUG(10, ("is_known_pipename: %s unknown\n", pipename
));
403 DEBUG(10, ("is_known_pipename: %s loaded dynamically\n", pipename
));
406 * Scan the list again for the interface id
408 if (rpc_srv_get_pipe_interface_by_cli_name(pipename
, syntax
)) {
412 DEBUG(10, ("is_known_pipename: pipe %s did not register itself!\n",
418 /*******************************************************************
419 Handle an NTLMSSP bind auth.
420 *******************************************************************/
422 static bool pipe_auth_generic_bind(struct pipes_struct
*p
,
423 struct ncacn_packet
*pkt
,
424 struct dcerpc_auth
*auth_info
,
427 TALLOC_CTX
*mem_ctx
= pkt
;
428 struct gensec_security
*gensec_security
= NULL
;
431 status
= auth_generic_server_authtype_start(p
,
432 auth_info
->auth_type
,
433 auth_info
->auth_level
,
434 &auth_info
->credentials
,
438 if (!NT_STATUS_EQUAL(status
, NT_STATUS_OK
)) {
439 DEBUG(0, (__location__
": auth_generic_server_authtype_start failed: %s\n",
444 /* Make sure data is bound to the memctx, to be freed the caller */
445 talloc_steal(mem_ctx
, response
->data
);
447 p
->auth
.auth_ctx
= gensec_security
;
448 p
->auth
.auth_type
= auth_info
->auth_type
;
450 if (pkt
->pfc_flags
& DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN
) {
451 p
->auth
.client_hdr_signing
= true;
452 p
->auth
.hdr_signing
= gensec_have_feature(gensec_security
,
453 GENSEC_FEATURE_SIGN_PKT_HEADER
);
456 if (p
->auth
.hdr_signing
) {
457 gensec_want_feature(gensec_security
,
458 GENSEC_FEATURE_SIGN_PKT_HEADER
);
464 /*******************************************************************
465 Process an NTLMSSP authentication response.
466 If this function succeeds, the user has been authenticated
467 and their domain, name and calling workstation stored in
469 *******************************************************************/
471 static bool pipe_auth_generic_verify_final(TALLOC_CTX
*mem_ctx
,
472 struct gensec_security
*gensec_security
,
473 enum dcerpc_AuthLevel auth_level
,
474 struct auth_session_info
**session_info
)
479 DEBUG(5, (__location__
": checking user details\n"));
481 /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
482 ensure the underlying NTLMSSP flags are also set. If not we should
485 status
= auth_generic_server_check_flags(gensec_security
,
487 DCERPC_AUTH_LEVEL_INTEGRITY
),
489 DCERPC_AUTH_LEVEL_PRIVACY
));
490 if (!NT_STATUS_IS_OK(status
)) {
491 DEBUG(0, (__location__
": Client failed to negotatie proper "
492 "security for rpc connection\n"));
496 TALLOC_FREE(*session_info
);
498 status
= auth_generic_server_get_user_info(gensec_security
,
499 mem_ctx
, session_info
);
500 if (!NT_STATUS_IS_OK(status
)) {
501 DEBUG(0, (__location__
": failed to obtain the server info "
502 "for authenticated user: %s\n", nt_errstr(status
)));
506 if ((*session_info
)->security_token
== NULL
) {
507 DEBUG(1, ("Auth module failed to provide nt_user_token\n"));
512 * We're an authenticated bind over smb, so the session key needs to
513 * be set to "SystemLibraryDTC". Weird, but this is what Windows
514 * does. See the RPC-SAMBA3SESSIONKEY.
517 ret
= session_info_set_session_key((*session_info
), generic_session_key());
519 DEBUG(0, ("Failed to set session key!\n"));
526 static NTSTATUS
pipe_auth_verify_final(struct pipes_struct
*p
)
528 struct gensec_security
*gensec_security
;
530 switch (p
->auth
.auth_type
) {
531 case DCERPC_AUTH_TYPE_NTLMSSP
:
532 case DCERPC_AUTH_TYPE_KRB5
:
533 case DCERPC_AUTH_TYPE_SPNEGO
:
534 gensec_security
= talloc_get_type_abort(p
->auth
.auth_ctx
,
535 struct gensec_security
);
536 if (!pipe_auth_generic_verify_final(p
, gensec_security
,
539 return NT_STATUS_ACCESS_DENIED
;
543 DEBUG(0, (__location__
": incorrect auth type (%u).\n",
544 (unsigned int)p
->auth
.auth_type
));
545 return NT_STATUS_ACCESS_DENIED
;
548 p
->pipe_bound
= true;
553 /*******************************************************************
554 Respond to a pipe bind request.
555 *******************************************************************/
557 static bool api_pipe_bind_req(struct pipes_struct
*p
,
558 struct ncacn_packet
*pkt
)
560 struct dcerpc_auth auth_info
;
562 unsigned int auth_type
= DCERPC_AUTH_TYPE_NONE
;
564 struct ndr_syntax_id id
;
565 uint8_t pfc_flags
= 0;
566 union dcerpc_payload u
;
567 struct dcerpc_ack_ctx bind_ack_ctx
;
568 DATA_BLOB auth_resp
= data_blob_null
;
569 DATA_BLOB auth_blob
= data_blob_null
;
570 const struct ndr_interface_table
*table
;
572 /* No rebinds on a bound pipe - use alter context. */
574 DEBUG(2,("Rejecting bind request on bound rpc connection\n"));
575 return setup_bind_nak(p
, pkt
);
578 if (pkt
->u
.bind
.num_contexts
== 0) {
579 DEBUG(0, ("api_pipe_bind_req: no rpc contexts around\n"));
584 * Try and find the correct pipe name to ensure
585 * that this is a pipe name we support.
587 id
= pkt
->u
.bind
.ctx_list
[0].abstract_syntax
;
589 table
= ndr_table_by_uuid(&id
.uuid
);
591 DEBUG(0,("unknown interface\n"));
595 if (rpc_srv_pipe_exists_by_id(&id
)) {
596 DEBUG(3, ("api_pipe_bind_req: %s -> %s rpc service\n",
597 rpc_srv_get_pipe_cli_name(&id
),
598 rpc_srv_get_pipe_srv_name(&id
)));
600 status
= smb_probe_module(
601 "rpc", dcerpc_default_transport_endpoint(pkt
,
604 if (NT_STATUS_IS_ERR(status
)) {
605 DEBUG(3,("api_pipe_bind_req: Unknown rpc service name "
606 "%s in bind request.\n",
607 ndr_interface_name(&id
.uuid
,
610 return setup_bind_nak(p
, pkt
);
613 if (rpc_srv_get_pipe_interface_by_cli_name(
614 dcerpc_default_transport_endpoint(pkt
,
617 DEBUG(3, ("api_pipe_bind_req: %s -> %s rpc service\n",
618 rpc_srv_get_pipe_cli_name(&id
),
619 rpc_srv_get_pipe_srv_name(&id
)));
621 DEBUG(0, ("module %s doesn't provide functions for "
623 ndr_interface_name(&id
.uuid
,
625 ndr_interface_name(&id
.uuid
,
627 return setup_bind_nak(p
, pkt
);
631 DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__
));
633 if (pkt
->u
.bind
.assoc_group_id
!= 0) {
634 assoc_gid
= pkt
->u
.bind
.assoc_group_id
;
640 * Create the bind response struct.
643 /* If the requested abstract synt uuid doesn't match our client pipe,
644 reject the bind_ack & set the transfer interface synt to all 0's,
645 ver 0 (observed when NT5 attempts to bind to abstract interfaces
647 Needed when adding entries to a DACL from NT5 - SK */
649 if (check_bind_req(p
,
650 &pkt
->u
.bind
.ctx_list
[0].abstract_syntax
,
651 &pkt
->u
.bind
.ctx_list
[0].transfer_syntaxes
[0],
652 pkt
->u
.bind
.ctx_list
[0].context_id
)) {
654 bind_ack_ctx
.result
= 0;
655 bind_ack_ctx
.reason
.value
= 0;
656 bind_ack_ctx
.syntax
= pkt
->u
.bind
.ctx_list
[0].transfer_syntaxes
[0];
658 p
->pipe_bound
= False
;
659 /* Rejection reason: abstract syntax not supported */
660 bind_ack_ctx
.result
= DCERPC_BIND_PROVIDER_REJECT
;
661 bind_ack_ctx
.reason
.value
= DCERPC_BIND_REASON_ASYNTAX
;
662 bind_ack_ctx
.syntax
= ndr_syntax_id_null
;
666 * Check if this is an authenticated bind request.
668 if (pkt
->auth_length
) {
669 /* Quick length check. Won't catch a bad auth footer,
670 * prevents overrun. */
672 if (pkt
->frag_length
< RPC_HEADER_LEN
+
673 DCERPC_AUTH_TRAILER_LENGTH
+
675 DEBUG(0,("api_pipe_bind_req: auth_len (%u) "
676 "too long for fragment %u.\n",
677 (unsigned int)pkt
->auth_length
,
678 (unsigned int)pkt
->frag_length
));
683 * Decode the authentication verifier.
685 status
= dcerpc_pull_dcerpc_auth(pkt
,
686 &pkt
->u
.bind
.auth_info
,
687 &auth_info
, p
->endian
);
688 if (!NT_STATUS_IS_OK(status
)) {
689 DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n"));
693 auth_type
= auth_info
.auth_type
;
695 /* Work out if we have to sign or seal etc. */
696 switch (auth_info
.auth_level
) {
697 case DCERPC_AUTH_LEVEL_INTEGRITY
:
698 p
->auth
.auth_level
= DCERPC_AUTH_LEVEL_INTEGRITY
;
700 case DCERPC_AUTH_LEVEL_PRIVACY
:
701 p
->auth
.auth_level
= DCERPC_AUTH_LEVEL_PRIVACY
;
703 case DCERPC_AUTH_LEVEL_CONNECT
:
704 p
->auth
.auth_level
= DCERPC_AUTH_LEVEL_CONNECT
;
707 DEBUG(0, ("Unexpected auth level (%u).\n",
708 (unsigned int)auth_info
.auth_level
));
713 case DCERPC_AUTH_TYPE_NTLMSSP
:
714 if (!pipe_auth_generic_bind(p
, pkt
,
715 &auth_info
, &auth_resp
)) {
721 case DCERPC_AUTH_TYPE_SCHANNEL
:
722 if (!pipe_auth_generic_bind(p
, pkt
,
723 &auth_info
, &auth_resp
)) {
726 if (!session_info_set_session_key(p
->session_info
, generic_session_key())) {
727 DEBUG(0, ("session_info_set_session_key failed\n"));
730 p
->pipe_bound
= true;
733 case DCERPC_AUTH_TYPE_SPNEGO
:
734 case DCERPC_AUTH_TYPE_KRB5
:
735 if (!pipe_auth_generic_bind(p
, pkt
,
736 &auth_info
, &auth_resp
)) {
741 case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM
:
742 if (p
->transport
== NCALRPC
&& p
->ncalrpc_as_system
) {
743 TALLOC_FREE(p
->session_info
);
745 status
= make_session_info_system(p
,
747 if (!NT_STATUS_IS_OK(status
)) {
751 auth_resp
= data_blob_talloc(pkt
,
755 p
->auth
.auth_type
= DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM
;
756 p
->pipe_bound
= true;
762 case DCERPC_AUTH_TYPE_NONE
:
766 DEBUG(0, ("Unknown auth type %x requested.\n", auth_type
));
771 if (auth_type
== DCERPC_AUTH_TYPE_NONE
) {
772 /* Unauthenticated bind request. */
773 /* We're finished - no more packets. */
774 p
->auth
.auth_type
= DCERPC_AUTH_TYPE_NONE
;
775 /* We must set the pipe auth_level here also. */
776 p
->auth
.auth_level
= DCERPC_AUTH_LEVEL_NONE
;
777 p
->pipe_bound
= True
;
778 /* The session key was initialized from the SMB
779 * session in make_internal_rpc_pipe_p */
782 ZERO_STRUCT(u
.bind_ack
);
783 u
.bind_ack
.max_xmit_frag
= RPC_MAX_PDU_FRAG_LEN
;
784 u
.bind_ack
.max_recv_frag
= RPC_MAX_PDU_FRAG_LEN
;
785 u
.bind_ack
.assoc_group_id
= assoc_gid
;
787 /* name has to be \PIPE\xxxxx */
788 u
.bind_ack
.secondary_address
=
789 talloc_asprintf(pkt
, "\\PIPE\\%s",
790 rpc_srv_get_pipe_srv_name(&id
));
791 if (!u
.bind_ack
.secondary_address
) {
792 DEBUG(0, ("Out of memory!\n"));
795 u
.bind_ack
.secondary_address_size
=
796 strlen(u
.bind_ack
.secondary_address
) + 1;
798 u
.bind_ack
.num_results
= 1;
799 u
.bind_ack
.ctx_list
= &bind_ack_ctx
;
801 /* NOTE: We leave the auth_info empty so we can calculate the padding
802 * later and then append the auth_info --simo */
805 * Marshall directly into the outgoing PDU space. We
806 * must do this as we need to set to the bind response
807 * header and are never sending more than one PDU here.
810 pfc_flags
= DCERPC_PFC_FLAG_FIRST
| DCERPC_PFC_FLAG_LAST
;
812 if (p
->auth
.hdr_signing
) {
813 pfc_flags
|= DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN
;
816 status
= dcerpc_push_ncacn_packet(p
->mem_ctx
,
823 if (!NT_STATUS_IS_OK(status
)) {
824 DEBUG(0, ("Failed to marshall bind_ack packet. (%s)\n",
828 if (auth_resp
.length
) {
830 status
= dcerpc_push_dcerpc_auth(pkt
,
832 auth_info
.auth_level
,
834 1, /* auth_context_id */
837 if (!NT_STATUS_IS_OK(status
)) {
838 DEBUG(0, ("Marshalling of dcerpc_auth failed.\n"));
843 /* Now that we have the auth len store it into the right place in
844 * the dcerpc header */
845 dcerpc_set_frag_length(&p
->out_data
.frag
,
846 p
->out_data
.frag
.length
+ auth_blob
.length
);
848 if (auth_blob
.length
) {
850 if (!data_blob_append(p
->mem_ctx
, &p
->out_data
.frag
,
851 auth_blob
.data
, auth_blob
.length
)) {
852 DEBUG(0, ("Append of auth info failed.\n"));
858 * Setup the lengths for the initial reply.
861 p
->out_data
.data_sent_length
= 0;
862 p
->out_data
.current_pdu_sent
= 0;
864 TALLOC_FREE(auth_blob
.data
);
869 data_blob_free(&p
->out_data
.frag
);
870 TALLOC_FREE(auth_blob
.data
);
871 return setup_bind_nak(p
, pkt
);
874 /*******************************************************************
875 This is the "stage3" response after a bind request and reply.
876 *******************************************************************/
878 bool api_pipe_bind_auth3(struct pipes_struct
*p
, struct ncacn_packet
*pkt
)
880 struct dcerpc_auth auth_info
;
881 DATA_BLOB response
= data_blob_null
;
882 struct gensec_security
*gensec_security
;
885 DEBUG(5, ("api_pipe_bind_auth3: decode request. %d\n", __LINE__
));
887 if (pkt
->auth_length
== 0) {
888 DEBUG(1, ("No auth field sent for bind request!\n"));
892 /* Ensure there's enough data for an authenticated request. */
893 if (pkt
->frag_length
< RPC_HEADER_LEN
894 + DCERPC_AUTH_TRAILER_LENGTH
895 + pkt
->auth_length
) {
896 DEBUG(1,("api_pipe_ntlmssp_auth_process: auth_len "
897 "%u is too large.\n",
898 (unsigned int)pkt
->auth_length
));
903 * Decode the authentication verifier response.
906 status
= dcerpc_pull_dcerpc_auth(pkt
,
907 &pkt
->u
.auth3
.auth_info
,
908 &auth_info
, p
->endian
);
909 if (!NT_STATUS_IS_OK(status
)) {
910 DEBUG(1, ("Failed to unmarshall dcerpc_auth.\n"));
914 /* We must NEVER look at auth_info->auth_pad_len here,
915 * as old Samba client code gets it wrong and sends it
919 if (auth_info
.auth_type
!= p
->auth
.auth_type
) {
920 DEBUG(1, ("Auth type mismatch! Client sent %d, "
921 "but auth was started as type %d!\n",
922 auth_info
.auth_type
, p
->auth
.auth_type
));
926 switch (auth_info
.auth_type
) {
927 case DCERPC_AUTH_TYPE_NTLMSSP
:
928 case DCERPC_AUTH_TYPE_KRB5
:
929 case DCERPC_AUTH_TYPE_SPNEGO
:
930 gensec_security
= talloc_get_type_abort(p
->auth
.auth_ctx
,
931 struct gensec_security
);
932 status
= auth_generic_server_step(gensec_security
,
933 pkt
, &auth_info
.credentials
,
937 DEBUG(1, (__location__
": incorrect auth type (%u).\n",
938 (unsigned int)auth_info
.auth_type
));
942 if (NT_STATUS_EQUAL(status
,
943 NT_STATUS_MORE_PROCESSING_REQUIRED
) ||
945 DEBUG(1, (__location__
": This was supposed to be the final "
946 "leg, but crypto machinery claims a response is "
947 "needed, aborting auth!\n"));
948 data_blob_free(&response
);
951 if (!NT_STATUS_IS_OK(status
)) {
952 DEBUG(2, ("Auth failed (%s)\n", nt_errstr(status
)));
956 /* Now verify auth was indeed successful and extract server info */
957 status
= pipe_auth_verify_final(p
);
958 if (!NT_STATUS_IS_OK(status
)) {
959 DEBUG(2, ("Auth Verify failed (%s)\n", nt_errstr(status
)));
967 TALLOC_FREE(p
->auth
.auth_ctx
);
971 /****************************************************************************
972 Deal with an alter context call. Can be third part of 3 leg auth request for
974 ****************************************************************************/
976 static bool api_pipe_alter_context(struct pipes_struct
*p
,
977 struct ncacn_packet
*pkt
)
979 struct dcerpc_auth auth_info
;
982 union dcerpc_payload u
;
983 struct dcerpc_ack_ctx bind_ack_ctx
;
984 DATA_BLOB auth_resp
= data_blob_null
;
985 DATA_BLOB auth_blob
= data_blob_null
;
987 struct gensec_security
*gensec_security
;
989 DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__
));
991 if (pkt
->u
.bind
.assoc_group_id
!= 0) {
992 assoc_gid
= pkt
->u
.bind
.assoc_group_id
;
998 * Create the bind response struct.
1001 /* If the requested abstract synt uuid doesn't match our client pipe,
1002 reject the bind_ack & set the transfer interface synt to all 0's,
1003 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1005 Needed when adding entries to a DACL from NT5 - SK */
1007 if (check_bind_req(p
,
1008 &pkt
->u
.bind
.ctx_list
[0].abstract_syntax
,
1009 &pkt
->u
.bind
.ctx_list
[0].transfer_syntaxes
[0],
1010 pkt
->u
.bind
.ctx_list
[0].context_id
)) {
1012 bind_ack_ctx
.result
= 0;
1013 bind_ack_ctx
.reason
.value
= 0;
1014 bind_ack_ctx
.syntax
= pkt
->u
.bind
.ctx_list
[0].transfer_syntaxes
[0];
1016 p
->pipe_bound
= False
;
1017 /* Rejection reason: abstract syntax not supported */
1018 bind_ack_ctx
.result
= DCERPC_BIND_PROVIDER_REJECT
;
1019 bind_ack_ctx
.reason
.value
= DCERPC_BIND_REASON_ASYNTAX
;
1020 bind_ack_ctx
.syntax
= ndr_syntax_id_null
;
1024 * Check if this is an authenticated alter context request.
1026 if (pkt
->auth_length
) {
1027 /* Quick length check. Won't catch a bad auth footer,
1028 * prevents overrun. */
1030 if (pkt
->frag_length
< RPC_HEADER_LEN
+
1031 DCERPC_AUTH_TRAILER_LENGTH
+
1033 DEBUG(0,("api_pipe_alter_context: auth_len (%u) "
1034 "too long for fragment %u.\n",
1035 (unsigned int)pkt
->auth_length
,
1036 (unsigned int)pkt
->frag_length
));
1040 status
= dcerpc_pull_dcerpc_auth(pkt
,
1041 &pkt
->u
.bind
.auth_info
,
1042 &auth_info
, p
->endian
);
1043 if (!NT_STATUS_IS_OK(status
)) {
1044 DEBUG(0, ("Unable to unmarshall dcerpc_auth.\n"));
1048 /* We can only finish if the pipe is unbound for now */
1049 if (p
->pipe_bound
) {
1050 DEBUG(0, (__location__
": Pipe already bound, "
1051 "Altering Context not yet supported!\n"));
1055 if (auth_info
.auth_type
!= p
->auth
.auth_type
) {
1056 DEBUG(0, ("Auth type mismatch! Client sent %d, "
1057 "but auth was started as type %d!\n",
1058 auth_info
.auth_type
, p
->auth
.auth_type
));
1063 switch (auth_info
.auth_type
) {
1064 case DCERPC_AUTH_TYPE_SPNEGO
:
1065 case DCERPC_AUTH_TYPE_KRB5
:
1066 case DCERPC_AUTH_TYPE_NTLMSSP
:
1067 gensec_security
= talloc_get_type_abort(p
->auth
.auth_ctx
,
1068 struct gensec_security
);
1069 status
= auth_generic_server_step(gensec_security
,
1071 &auth_info
.credentials
,
1076 DEBUG(3, (__location__
": Usupported auth type (%d) "
1077 "in alter-context call\n",
1078 auth_info
.auth_type
));
1082 if (NT_STATUS_IS_OK(status
)) {
1083 /* third leg of auth, verify auth info */
1084 status
= pipe_auth_verify_final(p
);
1085 if (!NT_STATUS_IS_OK(status
)) {
1086 DEBUG(0, ("Auth Verify failed (%s)\n",
1087 nt_errstr(status
)));
1090 } else if (NT_STATUS_EQUAL(status
,
1091 NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
1092 DEBUG(10, ("More auth legs required.\n"));
1094 DEBUG(0, ("Auth step returned an error (%s)\n",
1095 nt_errstr(status
)));
1100 ZERO_STRUCT(u
.alter_resp
);
1101 u
.alter_resp
.max_xmit_frag
= RPC_MAX_PDU_FRAG_LEN
;
1102 u
.alter_resp
.max_recv_frag
= RPC_MAX_PDU_FRAG_LEN
;
1103 u
.alter_resp
.assoc_group_id
= assoc_gid
;
1105 /* secondary address CAN be NULL
1106 * as the specs say it's ignored.
1107 * It MUST be NULL to have the spoolss working.
1109 u
.alter_resp
.secondary_address
= "";
1110 u
.alter_resp
.secondary_address_size
= 1;
1112 u
.alter_resp
.num_results
= 1;
1113 u
.alter_resp
.ctx_list
= &bind_ack_ctx
;
1115 /* NOTE: We leave the auth_info empty so we can calculate the padding
1116 * later and then append the auth_info --simo */
1119 * Marshall directly into the outgoing PDU space. We
1120 * must do this as we need to set to the bind response
1121 * header and are never sending more than one PDU here.
1124 status
= dcerpc_push_ncacn_packet(p
->mem_ctx
,
1125 DCERPC_PKT_ALTER_RESP
,
1126 DCERPC_PFC_FLAG_FIRST
|
1127 DCERPC_PFC_FLAG_LAST
,
1132 if (!NT_STATUS_IS_OK(status
)) {
1133 DEBUG(0, ("Failed to marshall bind_ack packet. (%s)\n",
1134 nt_errstr(status
)));
1137 if (auth_resp
.length
) {
1139 /* Work out any padding needed before the auth footer. */
1140 pad_len
= p
->out_data
.frag
.length
% SERVER_NDR_PADDING_SIZE
;
1142 pad_len
= SERVER_NDR_PADDING_SIZE
- pad_len
;
1143 DEBUG(10, ("auth pad_len = %u\n",
1144 (unsigned int)pad_len
));
1147 status
= dcerpc_push_dcerpc_auth(pkt
,
1148 auth_info
.auth_type
,
1149 auth_info
.auth_level
,
1151 1, /* auth_context_id */
1154 if (!NT_STATUS_IS_OK(status
)) {
1155 DEBUG(0, ("Marshalling of dcerpc_auth failed.\n"));
1160 /* Now that we have the auth len store it into the right place in
1161 * the dcerpc header */
1162 dcerpc_set_frag_length(&p
->out_data
.frag
,
1163 p
->out_data
.frag
.length
+
1164 pad_len
+ auth_blob
.length
);
1166 if (auth_resp
.length
) {
1168 char pad
[SERVER_NDR_PADDING_SIZE
];
1169 memset(pad
, '\0', SERVER_NDR_PADDING_SIZE
);
1170 if (!data_blob_append(p
->mem_ctx
,
1173 DEBUG(0, ("api_pipe_bind_req: failed to add "
1174 "%u bytes of pad data.\n",
1175 (unsigned int)pad_len
));
1180 if (!data_blob_append(p
->mem_ctx
, &p
->out_data
.frag
,
1181 auth_blob
.data
, auth_blob
.length
)) {
1182 DEBUG(0, ("Append of auth info failed.\n"));
1188 * Setup the lengths for the initial reply.
1191 p
->out_data
.data_sent_length
= 0;
1192 p
->out_data
.current_pdu_sent
= 0;
1194 TALLOC_FREE(auth_blob
.data
);
1199 data_blob_free(&p
->out_data
.frag
);
1200 TALLOC_FREE(auth_blob
.data
);
1201 return setup_bind_nak(p
, pkt
);
1204 static bool api_rpcTNP(struct pipes_struct
*p
, struct ncacn_packet
*pkt
,
1205 const struct api_struct
*api_rpc_cmds
, int n_cmds
,
1206 const struct ndr_syntax_id
*syntax
);
1208 static bool srv_pipe_check_verification_trailer(struct pipes_struct
*p
,
1209 struct ncacn_packet
*pkt
,
1210 struct pipe_rpc_fns
*pipe_fns
)
1212 TALLOC_CTX
*frame
= talloc_stackframe();
1213 struct dcerpc_sec_verification_trailer
*vt
= NULL
;
1214 const uint32_t bitmask1
=
1215 p
->auth
.client_hdr_signing
? DCERPC_SEC_VT_CLIENT_SUPPORTS_HEADER_SIGNING
: 0;
1216 const struct dcerpc_sec_vt_pcontext pcontext
= {
1217 .abstract_syntax
= pipe_fns
->syntax
,
1218 .transfer_syntax
= ndr_transfer_syntax_ndr
,
1220 const struct dcerpc_sec_vt_header2 header2
=
1221 dcerpc_sec_vt_header2_from_ncacn_packet(pkt
);
1222 struct ndr_pull
*ndr
;
1223 enum ndr_err_code ndr_err
;
1226 ndr
= ndr_pull_init_blob(&p
->in_data
.data
, frame
);
1231 ndr_err
= ndr_pop_dcerpc_sec_verification_trailer(ndr
, frame
, &vt
);
1232 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
1236 ret
= dcerpc_sec_verification_trailer_check(vt
, &bitmask1
,
1237 &pcontext
, &header2
);
1243 /****************************************************************************
1244 Find the correct RPC function to call for this request.
1245 If the pipe is authenticated then become the correct UNIX user
1246 before doing the call.
1247 ****************************************************************************/
1249 static bool api_pipe_request(struct pipes_struct
*p
,
1250 struct ncacn_packet
*pkt
)
1252 TALLOC_CTX
*frame
= talloc_stackframe();
1254 struct pipe_rpc_fns
*pipe_fns
;
1256 if (!p
->pipe_bound
) {
1257 DEBUG(1, ("Pipe not bound!\n"));
1258 data_blob_free(&p
->out_data
.rdata
);
1263 /* get the set of RPC functions for this context */
1264 pipe_fns
= find_pipe_fns_by_context(p
->contexts
,
1265 pkt
->u
.request
.context_id
);
1266 if (pipe_fns
== NULL
) {
1267 DEBUG(0, ("No rpc function table associated with context "
1269 pkt
->u
.request
.context_id
));
1270 data_blob_free(&p
->out_data
.rdata
);
1275 if (!srv_pipe_check_verification_trailer(p
, pkt
, pipe_fns
)) {
1276 DEBUG(1, ("srv_pipe_check_verification_trailer: failed\n"));
1277 setup_fault_pdu(p
, NT_STATUS(DCERPC_FAULT_ACCESS_DENIED
));
1278 data_blob_free(&p
->out_data
.rdata
);
1283 if (!become_authenticated_pipe_user(p
->session_info
)) {
1284 DEBUG(1, ("Failed to become pipe user!\n"));
1285 data_blob_free(&p
->out_data
.rdata
);
1290 DEBUG(5, ("Requested %s rpc service\n",
1291 ndr_interface_name(&pipe_fns
->syntax
.uuid
,
1292 pipe_fns
->syntax
.if_version
)));
1294 ret
= api_rpcTNP(p
, pkt
, pipe_fns
->cmds
, pipe_fns
->n_cmds
,
1296 unbecome_authenticated_pipe_user();
1302 /*******************************************************************
1303 Calls the underlying RPC function for a named pipe.
1304 ********************************************************************/
1306 static bool api_rpcTNP(struct pipes_struct
*p
, struct ncacn_packet
*pkt
,
1307 const struct api_struct
*api_rpc_cmds
, int n_cmds
,
1308 const struct ndr_syntax_id
*syntax
)
1312 const struct ndr_interface_table
*table
;
1314 /* interpret the command */
1315 DEBUG(4,("api_rpcTNP: %s op 0x%x - ",
1316 ndr_interface_name(&syntax
->uuid
, syntax
->if_version
),
1317 pkt
->u
.request
.opnum
));
1319 table
= ndr_table_by_uuid(&syntax
->uuid
);
1320 if (table
== NULL
) {
1321 DEBUG(0,("unknown interface\n"));
1325 if (DEBUGLEVEL
>= 50) {
1327 slprintf(name
, sizeof(name
)-1, "in_%s",
1328 dcerpc_default_transport_endpoint(pkt
, NCACN_NP
, table
));
1329 dump_pdu_region(name
, pkt
->u
.request
.opnum
,
1330 &p
->in_data
.data
, 0,
1331 p
->in_data
.data
.length
);
1334 for (fn_num
= 0; fn_num
< n_cmds
; fn_num
++) {
1335 if (api_rpc_cmds
[fn_num
].opnum
== pkt
->u
.request
.opnum
&&
1336 api_rpc_cmds
[fn_num
].fn
!= NULL
) {
1337 DEBUG(3, ("api_rpcTNP: rpc command: %s\n",
1338 api_rpc_cmds
[fn_num
].name
));
1343 if (fn_num
== n_cmds
) {
1345 * For an unknown RPC just return a fault PDU but
1346 * return True to allow RPC's on the pipe to continue
1347 * and not put the pipe into fault state. JRA.
1349 DEBUG(4, ("unknown\n"));
1350 setup_fault_pdu(p
, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR
));
1354 offset1
= p
->out_data
.rdata
.length
;
1356 DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
1357 fn_num
, api_rpc_cmds
[fn_num
].fn
));
1358 /* do the actual command */
1359 if(!api_rpc_cmds
[fn_num
].fn(p
)) {
1360 DEBUG(0,("api_rpcTNP: %s: %s failed.\n",
1361 ndr_interface_name(&syntax
->uuid
, syntax
->if_version
),
1362 api_rpc_cmds
[fn_num
].name
));
1363 data_blob_free(&p
->out_data
.rdata
);
1367 if (p
->fault_state
) {
1368 DEBUG(4,("api_rpcTNP: fault(%d) return.\n", p
->fault_state
));
1369 setup_fault_pdu(p
, NT_STATUS(p
->fault_state
));
1374 if (DEBUGLEVEL
>= 50) {
1376 slprintf(name
, sizeof(name
)-1, "out_%s",
1377 dcerpc_default_transport_endpoint(pkt
, NCACN_NP
, table
));
1378 dump_pdu_region(name
, pkt
->u
.request
.opnum
,
1379 &p
->out_data
.rdata
, offset1
,
1380 p
->out_data
.rdata
.length
);
1383 DEBUG(5,("api_rpcTNP: called %s successfully\n",
1384 ndr_interface_name(&syntax
->uuid
, syntax
->if_version
)));
1386 /* Check for buffer underflow in rpc parsing */
1387 if ((DEBUGLEVEL
>= 10) &&
1388 (pkt
->frag_length
< p
->in_data
.data
.length
)) {
1389 DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
1390 dump_data(10, p
->in_data
.data
.data
+ pkt
->frag_length
,
1391 p
->in_data
.data
.length
- pkt
->frag_length
);
1397 /****************************************************************************
1398 Initialise an outgoing packet.
1399 ****************************************************************************/
1401 static bool pipe_init_outgoing_data(struct pipes_struct
*p
)
1403 output_data
*o_data
= &p
->out_data
;
1405 /* Reset the offset counters. */
1406 o_data
->data_sent_length
= 0;
1407 o_data
->current_pdu_sent
= 0;
1409 data_blob_free(&o_data
->frag
);
1411 /* Free any memory in the current return data buffer. */
1412 data_blob_free(&o_data
->rdata
);
1417 /****************************************************************************
1418 Sets the fault state on incoming packets.
1419 ****************************************************************************/
1421 void set_incoming_fault(struct pipes_struct
*p
)
1423 data_blob_free(&p
->in_data
.data
);
1424 p
->in_data
.pdu_needed_len
= 0;
1425 p
->in_data
.pdu
.length
= 0;
1426 p
->fault_state
= DCERPC_FAULT_CANT_PERFORM
;
1428 DEBUG(10, ("Setting fault state\n"));
1431 static NTSTATUS
dcesrv_auth_request(struct pipe_auth_data
*auth
,
1432 struct ncacn_packet
*pkt
,
1436 size_t hdr_size
= DCERPC_REQUEST_LENGTH
;
1439 DEBUG(10, ("Checking request auth.\n"));
1441 if (pkt
->pfc_flags
& DCERPC_PFC_FLAG_OBJECT_UUID
) {
1445 /* in case of sealing this function will unseal the data in place */
1446 status
= dcerpc_check_auth(auth
, pkt
,
1447 &pkt
->u
.request
.stub_and_verifier
,
1450 if (!NT_STATUS_IS_OK(status
)) {
1455 /* remove padding and auth trailer,
1456 * this way the caller will get just the data */
1457 if (pkt
->auth_length
) {
1458 size_t trail_len
= pad_len
1459 + DCERPC_AUTH_TRAILER_LENGTH
1461 if (pkt
->u
.request
.stub_and_verifier
.length
< trail_len
) {
1462 return NT_STATUS_INFO_LENGTH_MISMATCH
;
1464 pkt
->u
.request
.stub_and_verifier
.length
-= trail_len
;
1467 return NT_STATUS_OK
;
1470 /****************************************************************************
1471 Processes a request pdu. This will do auth processing if needed, and
1472 appends the data into the complete stream if the LAST flag is not set.
1473 ****************************************************************************/
1475 static bool process_request_pdu(struct pipes_struct
*p
, struct ncacn_packet
*pkt
)
1479 struct dcerpc_sec_vt_header2 hdr2
;
1481 if (!p
->pipe_bound
) {
1482 DEBUG(0,("process_request_pdu: rpc request with no bind.\n"));
1483 set_incoming_fault(p
);
1487 hdr2
= dcerpc_sec_vt_header2_from_ncacn_packet(pkt
);
1488 if (pkt
->pfc_flags
& DCERPC_PFC_FLAG_FIRST
) {
1491 if (!dcerpc_sec_vt_header2_equal(&hdr2
, &p
->header2
)) {
1492 set_incoming_fault(p
);
1497 /* Store the opnum */
1498 p
->opnum
= pkt
->u
.request
.opnum
;
1500 status
= dcesrv_auth_request(&p
->auth
, pkt
, &p
->in_data
.pdu
);
1501 if (!NT_STATUS_IS_OK(status
)) {
1502 DEBUG(0, ("Failed to check packet auth. (%s)\n",
1503 nt_errstr(status
)));
1504 set_incoming_fault(p
);
1508 data
= pkt
->u
.request
.stub_and_verifier
;
1511 * Check the data length doesn't go over the 15Mb limit.
1512 * increased after observing a bug in the Windows NT 4.0 SP6a
1513 * spoolsv.exe when the response to a GETPRINTERDRIVER2 RPC
1514 * will not fit in the initial buffer of size 0x1068 --jerry 22/01/2002
1517 if (p
->in_data
.data
.length
+ data
.length
> MAX_RPC_DATA_SIZE
) {
1518 DEBUG(0, ("process_request_pdu: "
1519 "rpc data buffer too large (%u) + (%u)\n",
1520 (unsigned int)p
->in_data
.data
.length
,
1521 (unsigned int)data
.length
));
1522 set_incoming_fault(p
);
1527 * Append the data portion into the buffer and return.
1531 if (!data_blob_append(p
->mem_ctx
, &p
->in_data
.data
,
1532 data
.data
, data
.length
)) {
1533 DEBUG(0, ("Unable to append data size %u "
1534 "to parse buffer of size %u.\n",
1535 (unsigned int)data
.length
,
1536 (unsigned int)p
->in_data
.data
.length
));
1537 set_incoming_fault(p
);
1542 if (!(pkt
->pfc_flags
& DCERPC_PFC_FLAG_LAST
)) {
1547 * Ok - we finally have a complete RPC stream.
1548 * Call the rpc command to process it.
1550 if (!pipe_init_outgoing_data(p
)) {
1554 return api_pipe_request(p
, pkt
);
1557 void process_complete_pdu(struct pipes_struct
*p
, struct ncacn_packet
*pkt
)
1561 /* Store the call_id */
1562 p
->call_id
= pkt
->call_id
;
1564 DEBUG(10, ("Processing packet type %u\n", (unsigned int)pkt
->ptype
));
1566 switch (pkt
->ptype
) {
1567 case DCERPC_PKT_REQUEST
:
1568 reply
= process_request_pdu(p
, pkt
);
1571 case DCERPC_PKT_PING
: /* CL request - ignore... */
1572 DEBUG(0, ("Error - Connectionless packet type %u received\n",
1573 (unsigned int)pkt
->ptype
));
1576 case DCERPC_PKT_RESPONSE
: /* No responses here. */
1577 DEBUG(0, ("Error - DCERPC_PKT_RESPONSE received from client"));
1580 case DCERPC_PKT_FAULT
:
1581 case DCERPC_PKT_WORKING
:
1582 /* CL request - reply to a ping when a call in process. */
1583 case DCERPC_PKT_NOCALL
:
1584 /* CL - server reply to a ping call. */
1585 case DCERPC_PKT_REJECT
:
1586 case DCERPC_PKT_ACK
:
1587 case DCERPC_PKT_CL_CANCEL
:
1588 case DCERPC_PKT_FACK
:
1589 case DCERPC_PKT_CANCEL_ACK
:
1590 DEBUG(0, ("Error - Connectionless packet type %u received\n",
1591 (unsigned int)pkt
->ptype
));
1594 case DCERPC_PKT_BIND
:
1596 * We assume that a pipe bind is only in one pdu.
1598 if (pipe_init_outgoing_data(p
)) {
1599 reply
= api_pipe_bind_req(p
, pkt
);
1603 case DCERPC_PKT_BIND_ACK
:
1604 case DCERPC_PKT_BIND_NAK
:
1605 DEBUG(0, ("Error - DCERPC_PKT_BINDACK/DCERPC_PKT_BINDNACK "
1606 "packet type %u received.\n",
1607 (unsigned int)pkt
->ptype
));
1611 case DCERPC_PKT_ALTER
:
1613 * We assume that a pipe bind is only in one pdu.
1615 if (pipe_init_outgoing_data(p
)) {
1616 reply
= api_pipe_alter_context(p
, pkt
);
1620 case DCERPC_PKT_ALTER_RESP
:
1621 DEBUG(0, ("Error - DCERPC_PKT_ALTER_RESP received: "
1622 "Should only be server -> client.\n"));
1625 case DCERPC_PKT_AUTH3
:
1627 * The third packet in an auth exchange.
1629 if (pipe_init_outgoing_data(p
)) {
1630 reply
= api_pipe_bind_auth3(p
, pkt
);
1634 case DCERPC_PKT_SHUTDOWN
:
1635 DEBUG(0, ("Error - DCERPC_PKT_SHUTDOWN received: "
1636 "Should only be server -> client.\n"));
1639 case DCERPC_PKT_CO_CANCEL
:
1640 /* For now just free all client data and continue
1642 DEBUG(3,("process_complete_pdu: DCERPC_PKT_CO_CANCEL."
1643 " Abandoning rpc call.\n"));
1644 /* As we never do asynchronous RPC serving, we can
1645 * never cancel a call (as far as I know).
1646 * If we ever did we'd have to send a cancel_ack reply.
1647 * For now, just free all client data and continue
1653 /* Enable this if we're doing async rpc. */
1654 /* We must check the outstanding callid matches. */
1655 if (pipe_init_outgoing_data(p
)) {
1656 /* Send a cancel_ack PDU reply. */
1657 /* We should probably check the auth-verifier here. */
1658 reply
= setup_cancel_ack_reply(p
, pkt
);
1663 case DCERPC_PKT_ORPHANED
:
1664 /* We should probably check the auth-verifier here.
1665 * For now just free all client data and continue
1667 DEBUG(3, ("process_complete_pdu: DCERPC_PKT_ORPHANED."
1668 " Abandoning rpc call.\n"));
1673 DEBUG(0, ("process_complete_pdu: "
1674 "Unknown rpc type = %u received.\n",
1675 (unsigned int)pkt
->ptype
));
1680 DEBUG(3,("DCE/RPC fault sent!"));
1681 set_incoming_fault(p
);
1682 setup_fault_pdu(p
, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR
));
1684 /* pkt and p->in_data.pdu.data freed by caller */