2 Unix SMB/CIFS implementation.
4 dcerpc utility functions
6 Copyright (C) Andrew Tridgell 2003
7 Copyright (C) Jelmer Vernooij 2004
8 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
9 Copyright (C) Rafal Szczesniak 2006
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #include "lib/events/events.h"
27 #include "libcli/composite/composite.h"
28 #include "librpc/gen_ndr/ndr_epmapper_c.h"
29 #include "librpc/gen_ndr/ndr_dcerpc.h"
30 #include "librpc/gen_ndr/ndr_misc.h"
31 #include "librpc/rpc/dcerpc_proto.h"
32 #include "auth/credentials/credentials.h"
33 #include "param/param.h"
34 #include "librpc/rpc/rpc_common.h"
37 find a dcerpc call on an interface by name
39 const struct ndr_interface_call
*dcerpc_iface_find_call(const struct ndr_interface_table
*iface
,
43 for (i
=0;i
<iface
->num_calls
;i
++) {
44 if (strcmp(iface
->calls
[i
].name
, name
) == 0) {
45 return &iface
->calls
[i
];
52 push a ncacn_packet into a blob, potentially with auth info
54 NTSTATUS
ncacn_push_auth(DATA_BLOB
*blob
, TALLOC_CTX
*mem_ctx
,
55 struct ncacn_packet
*pkt
,
56 struct dcerpc_auth
*auth_info
)
59 enum ndr_err_code ndr_err
;
61 ndr
= ndr_push_init_ctx(mem_ctx
);
63 return NT_STATUS_NO_MEMORY
;
66 if (!(pkt
->drep
[0] & DCERPC_DREP_LE
)) {
67 ndr
->flags
|= LIBNDR_FLAG_BIGENDIAN
;
70 if (pkt
->pfc_flags
& DCERPC_PFC_FLAG_OBJECT_UUID
) {
71 ndr
->flags
|= LIBNDR_FLAG_OBJECT_PRESENT
;
75 pkt
->auth_length
= auth_info
->credentials
.length
;
80 ndr_err
= ndr_push_ncacn_packet(ndr
, NDR_SCALARS
|NDR_BUFFERS
, pkt
);
81 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
82 return ndr_map_error2ntstatus(ndr_err
);
87 /* the s3 rpc server doesn't handle auth padding in
88 bind requests. Use zero auth padding to keep us
89 working with old servers */
90 uint32_t offset
= ndr
->offset
;
91 ndr_err
= ndr_push_align(ndr
, 16);
92 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
93 return ndr_map_error2ntstatus(ndr_err
);
95 auth_info
->auth_pad_length
= ndr
->offset
- offset
;
97 auth_info
->auth_pad_length
= 0;
99 ndr_err
= ndr_push_dcerpc_auth(ndr
, NDR_SCALARS
|NDR_BUFFERS
, auth_info
);
100 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
101 return ndr_map_error2ntstatus(ndr_err
);
105 *blob
= ndr_push_blob(ndr
);
107 /* fill in the frag length */
108 dcerpc_set_frag_length(blob
, blob
->length
);
114 struct epm_map_binding_state
{
115 struct dcerpc_binding
*binding
;
116 const struct ndr_interface_table
*table
;
117 struct dcerpc_pipe
*pipe
;
118 struct policy_handle handle
;
120 struct epm_twr_t twr
;
121 struct epm_twr_t
*twr_r
;
127 static void continue_epm_recv_binding(struct composite_context
*ctx
);
128 static void continue_epm_map(struct tevent_req
*subreq
);
132 Stage 2 of epm_map_binding: Receive connected rpc pipe and send endpoint
135 static void continue_epm_recv_binding(struct composite_context
*ctx
)
137 struct composite_context
*c
= talloc_get_type(ctx
->async
.private_data
,
138 struct composite_context
);
139 struct epm_map_binding_state
*s
= talloc_get_type(c
->private_data
,
140 struct epm_map_binding_state
);
141 struct tevent_req
*subreq
;
143 /* receive result of rpc pipe connect request */
144 c
->status
= dcerpc_pipe_connect_b_recv(ctx
, c
, &s
->pipe
);
145 if (!composite_is_ok(c
)) return;
147 /* prepare requested binding parameters */
148 s
->binding
->object
= s
->table
->syntax_id
;
150 c
->status
= dcerpc_binding_build_tower(s
->pipe
, s
->binding
, &s
->twr
.tower
);
151 if (!composite_is_ok(c
)) return;
153 /* with some nice pretty paper around it of course */
154 s
->r
.in
.object
= &s
->guid
;
155 s
->r
.in
.map_tower
= &s
->twr
;
156 s
->r
.in
.entry_handle
= &s
->handle
;
157 s
->r
.in
.max_towers
= 1;
158 s
->r
.out
.entry_handle
= &s
->handle
;
159 s
->r
.out
.num_towers
= &s
->num_towers
;
161 /* send request for an endpoint mapping - a rpc request on connected pipe */
162 subreq
= dcerpc_epm_Map_r_send(s
, c
->event_ctx
,
163 s
->pipe
->binding_handle
,
165 if (composite_nomem(subreq
, c
)) return;
167 tevent_req_set_callback(subreq
, continue_epm_map
, c
);
172 Stage 3 of epm_map_binding: Receive endpoint mapping and provide binding details
174 static void continue_epm_map(struct tevent_req
*subreq
)
176 struct composite_context
*c
= tevent_req_callback_data(subreq
,
177 struct composite_context
);
178 struct epm_map_binding_state
*s
= talloc_get_type(c
->private_data
,
179 struct epm_map_binding_state
);
181 /* receive result of a rpc request */
182 c
->status
= dcerpc_epm_Map_r_recv(subreq
, s
);
184 if (!composite_is_ok(c
)) return;
186 /* check the details */
187 if (s
->r
.out
.result
!= 0 || *s
->r
.out
.num_towers
!= 1) {
188 composite_error(c
, NT_STATUS_PORT_UNREACHABLE
);
192 s
->twr_r
= s
->r
.out
.towers
[0].twr
;
193 if (s
->twr_r
== NULL
) {
194 composite_error(c
, NT_STATUS_PORT_UNREACHABLE
);
198 if (s
->twr_r
->tower
.num_floors
!= s
->twr
.tower
.num_floors
||
199 s
->twr_r
->tower
.floors
[3].lhs
.protocol
!= s
->twr
.tower
.floors
[3].lhs
.protocol
) {
200 composite_error(c
, NT_STATUS_PORT_UNREACHABLE
);
204 /* get received endpoint */
205 s
->binding
->endpoint
= talloc_reference(s
->binding
,
206 dcerpc_floor_get_rhs_data(c
, &s
->twr_r
->tower
.floors
[3]));
207 if (composite_nomem(s
->binding
->endpoint
, c
)) return;
214 Request for endpoint mapping of dcerpc binding - try to request for endpoint
215 unless there is default one.
217 struct composite_context
*dcerpc_epm_map_binding_send(TALLOC_CTX
*mem_ctx
,
218 struct dcerpc_binding
*binding
,
219 const struct ndr_interface_table
*table
,
220 struct tevent_context
*ev
,
221 struct loadparm_context
*lp_ctx
)
223 struct composite_context
*c
;
224 struct epm_map_binding_state
*s
;
225 struct composite_context
*pipe_connect_req
;
226 struct cli_credentials
*anon_creds
;
229 struct dcerpc_binding
*epmapper_binding
;
236 /* composite context allocation and setup */
237 c
= composite_create(mem_ctx
, ev
);
242 s
= talloc_zero(c
, struct epm_map_binding_state
);
243 if (composite_nomem(s
, c
)) return c
;
246 s
->binding
= binding
;
249 /* anonymous credentials for rpc connection used to get endpoint mapping */
250 anon_creds
= cli_credentials_init(mem_ctx
);
251 cli_credentials_set_anonymous(anon_creds
);
254 First, check if there is a default endpoint specified in the IDL
257 struct dcerpc_binding
*default_binding
;
259 /* Find one of the default pipes for this interface */
260 for (i
= 0; i
< table
->endpoints
->count
; i
++) {
261 status
= dcerpc_parse_binding(mem_ctx
, table
->endpoints
->names
[i
], &default_binding
);
263 if (NT_STATUS_IS_OK(status
)) {
264 if (binding
->transport
== NCA_UNKNOWN
)
265 binding
->transport
= default_binding
->transport
;
266 if (default_binding
->transport
== binding
->transport
&&
267 default_binding
->endpoint
) {
268 binding
->endpoint
= talloc_reference(binding
, default_binding
->endpoint
);
269 talloc_free(default_binding
);
275 talloc_free(default_binding
);
281 epmapper_binding
= talloc_zero(c
, struct dcerpc_binding
);
282 if (composite_nomem(epmapper_binding
, c
)) return c
;
284 /* basic endpoint mapping data */
285 epmapper_binding
->transport
= binding
->transport
;
286 epmapper_binding
->host
= talloc_reference(epmapper_binding
, binding
->host
);
287 epmapper_binding
->target_hostname
= epmapper_binding
->host
;
288 epmapper_binding
->options
= NULL
;
289 epmapper_binding
->localaddress
= talloc_reference(epmapper_binding
, binding
->localaddress
);
290 epmapper_binding
->flags
= 0;
291 epmapper_binding
->assoc_group_id
= 0;
292 epmapper_binding
->endpoint
= NULL
;
294 /* initiate rpc pipe connection */
295 pipe_connect_req
= dcerpc_pipe_connect_b_send(c
, epmapper_binding
,
297 anon_creds
, c
->event_ctx
,
299 if (composite_nomem(pipe_connect_req
, c
)) return c
;
301 composite_continue(c
, pipe_connect_req
, continue_epm_recv_binding
, c
);
307 Receive result of endpoint mapping request
309 NTSTATUS
dcerpc_epm_map_binding_recv(struct composite_context
*c
)
311 NTSTATUS status
= composite_wait(c
);
319 Get endpoint mapping for rpc connection
321 _PUBLIC_ NTSTATUS
dcerpc_epm_map_binding(TALLOC_CTX
*mem_ctx
, struct dcerpc_binding
*binding
,
322 const struct ndr_interface_table
*table
, struct tevent_context
*ev
,
323 struct loadparm_context
*lp_ctx
)
325 struct composite_context
*c
;
327 c
= dcerpc_epm_map_binding_send(mem_ctx
, binding
, table
, ev
, lp_ctx
);
328 return dcerpc_epm_map_binding_recv(c
);
332 struct pipe_auth_state
{
333 struct dcerpc_pipe
*pipe
;
334 struct dcerpc_binding
*binding
;
335 const struct ndr_interface_table
*table
;
336 struct loadparm_context
*lp_ctx
;
337 struct cli_credentials
*credentials
;
341 static void continue_auth_schannel(struct composite_context
*ctx
);
342 static void continue_auth(struct composite_context
*ctx
);
343 static void continue_auth_none(struct composite_context
*ctx
);
344 static void continue_ntlmssp_connection(struct composite_context
*ctx
);
345 static void continue_spnego_after_wrong_pass(struct composite_context
*ctx
);
349 Stage 2 of pipe_auth: Receive result of schannel bind request
351 static void continue_auth_schannel(struct composite_context
*ctx
)
353 struct composite_context
*c
= talloc_get_type(ctx
->async
.private_data
,
354 struct composite_context
);
356 c
->status
= dcerpc_bind_auth_schannel_recv(ctx
);
357 if (!composite_is_ok(c
)) return;
364 Stage 2 of pipe_auth: Receive result of authenticated bind request
366 static void continue_auth(struct composite_context
*ctx
)
368 struct composite_context
*c
= talloc_get_type(ctx
->async
.private_data
,
369 struct composite_context
);
371 c
->status
= dcerpc_bind_auth_recv(ctx
);
372 if (!composite_is_ok(c
)) return;
377 Stage 2 of pipe_auth: Receive result of authenticated bind request, but handle fallbacks:
380 static void continue_auth_auto(struct composite_context
*ctx
)
382 struct composite_context
*c
= talloc_get_type(ctx
->async
.private_data
,
383 struct composite_context
);
384 struct pipe_auth_state
*s
= talloc_get_type(c
->private_data
, struct pipe_auth_state
);
385 struct composite_context
*sec_conn_req
;
387 c
->status
= dcerpc_bind_auth_recv(ctx
);
388 if (NT_STATUS_EQUAL(c
->status
, NT_STATUS_INVALID_PARAMETER
)) {
390 * Retry with NTLMSSP auth as fallback
391 * send a request for secondary rpc connection
393 sec_conn_req
= dcerpc_secondary_connection_send(s
->pipe
,
395 composite_continue(c
, sec_conn_req
, continue_ntlmssp_connection
, c
);
397 } else if (NT_STATUS_EQUAL(c
->status
, NT_STATUS_LOGON_FAILURE
)) {
398 if (cli_credentials_wrong_password(s
->credentials
)) {
400 * Retry SPNEGO with a better password
401 * send a request for secondary rpc connection
403 sec_conn_req
= dcerpc_secondary_connection_send(s
->pipe
,
405 composite_continue(c
, sec_conn_req
, continue_spnego_after_wrong_pass
, c
);
410 if (!composite_is_ok(c
)) return;
416 Stage 3 of pipe_auth (fallback to NTLMSSP case): Receive secondary
417 rpc connection (the first one can't be used any more, due to the
418 bind nak) and perform authenticated bind request
420 static void continue_ntlmssp_connection(struct composite_context
*ctx
)
422 struct composite_context
*c
;
423 struct pipe_auth_state
*s
;
424 struct composite_context
*auth_req
;
425 struct dcerpc_pipe
*p2
;
428 c
= talloc_get_type(ctx
->async
.private_data
, struct composite_context
);
429 s
= talloc_get_type(c
->private_data
, struct pipe_auth_state
);
431 /* receive secondary rpc connection */
432 c
->status
= dcerpc_secondary_connection_recv(ctx
, &p2
);
433 if (!composite_is_ok(c
)) return;
436 /* this is a rather strange situation. When
437 we come into the routine, s is a child of s->pipe, and
438 when we created p2 above, it also became a child of
441 Now we want p2 to be a parent of s->pipe, and we want s to
442 be a parent of both of them! If we don't do this very
443 carefully we end up creating a talloc loop
446 /* we need the new contexts to hang off the same context
447 that s->pipe is on, but the only way to get that is
448 via talloc_parent() */
449 pp
= talloc_parent(s
->pipe
);
451 /* promote s to be at the top */
454 /* and put p2 under s */
457 /* now put s->pipe under p2 */
458 talloc_steal(p2
, s
->pipe
);
462 /* initiate a authenticated bind */
463 auth_req
= dcerpc_bind_auth_send(c
, s
->pipe
, s
->table
,
465 lpcfg_gensec_settings(c
, s
->lp_ctx
),
466 DCERPC_AUTH_TYPE_NTLMSSP
,
467 dcerpc_auth_level(s
->pipe
->conn
),
468 s
->table
->authservices
->names
[0]);
469 composite_continue(c
, auth_req
, continue_auth
, c
);
473 Stage 3 of pipe_auth (retry on wrong password): Receive secondary
474 rpc connection (the first one can't be used any more, due to the
475 bind nak) and perform authenticated bind request
477 static void continue_spnego_after_wrong_pass(struct composite_context
*ctx
)
479 struct composite_context
*c
;
480 struct pipe_auth_state
*s
;
481 struct composite_context
*auth_req
;
482 struct dcerpc_pipe
*p2
;
484 c
= talloc_get_type(ctx
->async
.private_data
, struct composite_context
);
485 s
= talloc_get_type(c
->private_data
, struct pipe_auth_state
);
487 /* receive secondary rpc connection */
488 c
->status
= dcerpc_secondary_connection_recv(ctx
, &p2
);
489 if (!composite_is_ok(c
)) return;
492 talloc_steal(p2
, s
->pipe
);
495 /* initiate a authenticated bind */
496 auth_req
= dcerpc_bind_auth_send(c
, s
->pipe
, s
->table
,
498 lpcfg_gensec_settings(c
, s
->lp_ctx
),
499 DCERPC_AUTH_TYPE_SPNEGO
,
500 dcerpc_auth_level(s
->pipe
->conn
),
501 s
->table
->authservices
->names
[0]);
502 composite_continue(c
, auth_req
, continue_auth
, c
);
507 Stage 2 of pipe_auth: Receive result of non-authenticated bind request
509 static void continue_auth_none(struct composite_context
*ctx
)
511 struct composite_context
*c
= talloc_get_type(ctx
->async
.private_data
,
512 struct composite_context
);
514 c
->status
= dcerpc_bind_auth_none_recv(ctx
);
515 if (!composite_is_ok(c
)) return;
522 Request to perform an authenticated bind if required. Authentication
523 is determined using credentials passed and binding flags.
525 struct composite_context
*dcerpc_pipe_auth_send(struct dcerpc_pipe
*p
,
526 struct dcerpc_binding
*binding
,
527 const struct ndr_interface_table
*table
,
528 struct cli_credentials
*credentials
,
529 struct loadparm_context
*lp_ctx
)
531 struct composite_context
*c
;
532 struct pipe_auth_state
*s
;
533 struct composite_context
*auth_schannel_req
;
534 struct composite_context
*auth_req
;
535 struct composite_context
*auth_none_req
;
536 struct dcecli_connection
*conn
;
539 /* composite context allocation and setup */
540 c
= composite_create(p
, p
->conn
->event_ctx
);
541 if (c
== NULL
) return NULL
;
543 s
= talloc_zero(c
, struct pipe_auth_state
);
544 if (composite_nomem(s
, c
)) return c
;
547 /* store parameters in state structure */
548 s
->binding
= binding
;
550 s
->credentials
= credentials
;
554 conn
= s
->pipe
->conn
;
555 conn
->flags
= binding
->flags
;
558 conn
->flags
|= DCERPC_DEBUG_PRINT_BOTH
;
561 /* remember the binding string for possible secondary connections */
562 conn
->binding_string
= dcerpc_binding_string(p
, binding
);
564 if (cli_credentials_is_anonymous(s
->credentials
)) {
565 auth_none_req
= dcerpc_bind_auth_none_send(c
, s
->pipe
, s
->table
);
566 composite_continue(c
, auth_none_req
, continue_auth_none
, c
);
570 if ((binding
->flags
& DCERPC_SCHANNEL
) &&
571 !cli_credentials_get_netlogon_creds(s
->credentials
)) {
572 /* If we don't already have netlogon credentials for
573 * the schannel bind, then we have to get these
575 auth_schannel_req
= dcerpc_bind_auth_schannel_send(c
, s
->pipe
, s
->table
,
576 s
->credentials
, s
->lp_ctx
,
577 dcerpc_auth_level(conn
));
578 composite_continue(c
, auth_schannel_req
, continue_auth_schannel
, c
);
583 * we rely on the already authenticated CIFS connection
584 * if not doing sign or seal
586 if (conn
->transport
.transport
== NCACN_NP
&&
587 !(s
->binding
->flags
& (DCERPC_SIGN
|DCERPC_SEAL
))) {
588 auth_none_req
= dcerpc_bind_auth_none_send(c
, s
->pipe
, s
->table
);
589 composite_continue(c
, auth_none_req
, continue_auth_none
, c
);
594 /* Perform an authenticated DCE-RPC bind
596 if (!(conn
->flags
& (DCERPC_SIGN
|DCERPC_SEAL
))) {
598 we are doing an authenticated connection,
599 but not using sign or seal. We must force
600 the CONNECT dcerpc auth type as a NONE auth
601 type doesn't allow authentication
602 information to be passed.
604 conn
->flags
|= DCERPC_CONNECT
;
607 if (s
->binding
->flags
& DCERPC_AUTH_SPNEGO
) {
608 auth_type
= DCERPC_AUTH_TYPE_SPNEGO
;
610 } else if (s
->binding
->flags
& DCERPC_AUTH_KRB5
) {
611 auth_type
= DCERPC_AUTH_TYPE_KRB5
;
613 } else if (s
->binding
->flags
& DCERPC_SCHANNEL
) {
614 auth_type
= DCERPC_AUTH_TYPE_SCHANNEL
;
616 } else if (s
->binding
->flags
& DCERPC_AUTH_NTLM
) {
617 auth_type
= DCERPC_AUTH_TYPE_NTLMSSP
;
620 /* try SPNEGO with fallback to NTLMSSP */
621 auth_req
= dcerpc_bind_auth_send(c
, s
->pipe
, s
->table
,
623 lpcfg_gensec_settings(c
, s
->lp_ctx
),
624 DCERPC_AUTH_TYPE_SPNEGO
,
625 dcerpc_auth_level(conn
),
626 s
->table
->authservices
->names
[0]);
627 composite_continue(c
, auth_req
, continue_auth_auto
, c
);
631 auth_req
= dcerpc_bind_auth_send(c
, s
->pipe
, s
->table
,
633 lpcfg_gensec_settings(c
, s
->lp_ctx
),
635 dcerpc_auth_level(conn
),
636 s
->table
->authservices
->names
[0]);
637 composite_continue(c
, auth_req
, continue_auth
, c
);
643 Receive result of authenticated bind request on dcerpc pipe
645 This returns *p, which may be different to the one originally
646 supllied, as it rebinds to a new pipe due to authentication fallback
649 NTSTATUS
dcerpc_pipe_auth_recv(struct composite_context
*c
, TALLOC_CTX
*mem_ctx
,
650 struct dcerpc_pipe
**p
)
654 struct pipe_auth_state
*s
= talloc_get_type(c
->private_data
,
655 struct pipe_auth_state
);
656 status
= composite_wait(c
);
657 if (!NT_STATUS_IS_OK(status
)) {
658 char *uuid_str
= GUID_string(s
->pipe
, &s
->table
->syntax_id
.uuid
);
659 DEBUG(0, ("Failed to bind to uuid %s for %s %s\n", uuid_str
,
660 dcerpc_binding_string(uuid_str
, s
->binding
), nt_errstr(status
)));
661 talloc_free(uuid_str
);
663 talloc_steal(mem_ctx
, s
->pipe
);
673 Perform an authenticated bind if needed - sync version
675 This may change *p, as it rebinds to a new pipe due to authentication fallback
677 _PUBLIC_ NTSTATUS
dcerpc_pipe_auth(TALLOC_CTX
*mem_ctx
,
678 struct dcerpc_pipe
**p
,
679 struct dcerpc_binding
*binding
,
680 const struct ndr_interface_table
*table
,
681 struct cli_credentials
*credentials
,
682 struct loadparm_context
*lp_ctx
)
684 struct composite_context
*c
;
686 c
= dcerpc_pipe_auth_send(*p
, binding
, table
, credentials
, lp_ctx
);
687 return dcerpc_pipe_auth_recv(c
, mem_ctx
, p
);
691 NTSTATUS
dcerpc_generic_session_key(struct dcecli_connection
*c
,
692 DATA_BLOB
*session_key
)
694 /* this took quite a few CPU cycles to find ... */
695 session_key
->data
= discard_const_p(unsigned char, "SystemLibraryDTC");
696 session_key
->length
= 16;
701 fetch the user session key - may be default (above) or the SMB session key
703 The key is always truncated to 16 bytes
705 _PUBLIC_ NTSTATUS
dcerpc_fetch_session_key(struct dcerpc_pipe
*p
,
706 DATA_BLOB
*session_key
)
709 status
= p
->conn
->security_state
.session_key(p
->conn
, session_key
);
710 if (!NT_STATUS_IS_OK(status
)) {
714 session_key
->length
= MIN(session_key
->length
, 16);
721 log a rpc packet in a format suitable for ndrdump. This is especially useful
722 for sealed packets, where ethereal cannot easily see the contents
724 this triggers on a debug level of >= 10
726 _PUBLIC_
void dcerpc_log_packet(const char *lockdir
,
727 const struct ndr_interface_table
*ndr
,
728 uint32_t opnum
, uint32_t flags
,
729 const DATA_BLOB
*pkt
)
731 const int num_examples
= 20;
734 if (lockdir
== NULL
) return;
736 for (i
=0;i
<num_examples
;i
++) {
738 asprintf(&name
, "%s/rpclog/%s-%u.%d.%s",
739 lockdir
, ndr
->name
, opnum
, i
,
740 (flags
&NDR_IN
)?"in":"out");
744 if (!file_exist(name
)) {
745 if (file_save(name
, pkt
->data
, pkt
->length
)) {
746 DEBUG(10,("Logged rpc packet to %s\n", name
));
758 create a secondary context from a primary connection
760 this uses dcerpc_alter_context() to create a new dcerpc context_id
762 _PUBLIC_ NTSTATUS
dcerpc_secondary_context(struct dcerpc_pipe
*p
,
763 struct dcerpc_pipe
**pp2
,
764 const struct ndr_interface_table
*table
)
767 struct dcerpc_pipe
*p2
;
769 p2
= talloc_zero(p
, struct dcerpc_pipe
);
771 return NT_STATUS_NO_MEMORY
;
773 p2
->conn
= talloc_reference(p2
, p
->conn
);
774 p2
->request_timeout
= p
->request_timeout
;
776 p2
->context_id
= ++p
->conn
->next_context_id
;
778 p2
->syntax
= table
->syntax_id
;
780 p2
->transfer_syntax
= p
->transfer_syntax
;
782 p2
->binding
= talloc_reference(p2
, p
->binding
);
784 p2
->binding_handle
= dcerpc_pipe_binding_handle(p2
);
785 if (p2
->binding_handle
== NULL
) {
787 return NT_STATUS_NO_MEMORY
;
790 status
= dcerpc_alter_context(p2
, p2
, &p2
->syntax
, &p2
->transfer_syntax
);
791 if (!NT_STATUS_IS_OK(status
)) {