2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (C) Andrew Tridgell 1992-1998,
5 * Largely re-written : 2005
6 * Copyright (C) Jeremy Allison 1998 - 2005
7 * Copyright (C) Simo Sorce 2010
8 * Copyright (C) Andrew Bartlett 2011
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see <http://www.gnu.org/licenses/>.
25 #include "rpc_client/cli_pipe.h"
26 #include "rpc_server/srv_pipe_internal.h"
28 #include "../libcli/named_pipe_auth/npa_tstream.h"
29 #include "rpc_server/rpc_ncacn_np.h"
30 #include "librpc/gen_ndr/netlogon.h"
31 #include "librpc/gen_ndr/auth.h"
32 #include "../auth/auth_sam_reply.h"
34 #include "rpc_server/rpc_pipes.h"
35 #include "../lib/tsocket/tsocket.h"
36 #include "../lib/util/tevent_ntstatus.h"
37 #include "rpc_contexts.h"
38 #include "rpc_server/rpc_config.h"
39 #include "librpc/ndr/ndr_table.h"
40 #include "rpc_server/rpc_server.h"
43 #define DBGC_CLASS DBGC_RPC_SRV
45 static struct npa_state
*npa_state_init(TALLOC_CTX
*mem_ctx
)
47 struct npa_state
*npa
;
49 npa
= talloc_zero(mem_ctx
, struct npa_state
);
54 npa
->read_queue
= tevent_queue_create(npa
, "npa_cli_read");
55 if (npa
->read_queue
== NULL
) {
56 DEBUG(0, ("tevent_queue_create failed\n"));
60 npa
->write_queue
= tevent_queue_create(npa
, "npa_cli_write");
61 if (npa
->write_queue
== NULL
) {
62 DEBUG(0, ("tevent_queue_create failed\n"));
72 NTSTATUS
make_internal_rpc_pipe_socketpair(TALLOC_CTX
*mem_ctx
,
73 struct tevent_context
*ev_ctx
,
74 struct messaging_context
*msg_ctx
,
75 const char *pipe_name
,
76 const struct ndr_syntax_id
*syntax
,
77 const struct tsocket_address
*remote_address
,
78 const struct auth_session_info
*session_info
,
79 struct npa_state
**pnpa
)
81 TALLOC_CTX
*tmp_ctx
= talloc_stackframe();
82 struct named_pipe_client
*npc
;
83 struct tevent_req
*subreq
;
84 struct npa_state
*npa
;
89 DEBUG(4, ("Create of internal pipe %s requested\n", pipe_name
));
91 npa
= npa_state_init(tmp_ctx
);
93 status
= NT_STATUS_NO_MEMORY
;
97 npa
->file_type
= FILE_TYPE_MESSAGE_MODE_PIPE
;
98 npa
->device_state
= 0xff | 0x0400 | 0x0100;
99 npa
->allocation_size
= 4096;
101 npc
= named_pipe_client_init(npa
,
108 npa
->allocation_size
,
109 NULL
); /* private_data */
111 status
= NT_STATUS_NO_MEMORY
;
114 npa
->private_data
= (void*) npc
;
116 rc
= tstream_npa_socketpair(npa
->file_type
,
122 status
= map_nt_error_from_unix(errno
);
126 npc
->client
= tsocket_address_copy(remote_address
, npc
);
127 if (npc
->client
== NULL
) {
128 status
= NT_STATUS_NO_MEMORY
;
132 npc
->client_name
= tsocket_address_inet_addr_string(npc
->client
, npc
);
133 if (npc
->client_name
== NULL
) {
134 status
= NT_STATUS_NO_MEMORY
;
138 npc
->session_info
= copy_session_info(npc
, session_info
);
139 if (npc
->session_info
== NULL
) {
140 status
= NT_STATUS_NO_MEMORY
;
144 rc
= make_server_pipes_struct(npc
,
154 status
= map_nt_error_from_unix(error
);
158 npc
->write_queue
= tevent_queue_create(npc
, "npa_server_write_queue");
159 if (npc
->write_queue
== NULL
) {
160 status
= NT_STATUS_NO_MEMORY
;
164 subreq
= dcerpc_read_ncacn_packet_send(npc
, npc
->ev
, npc
->tstream
);
165 if (subreq
== NULL
) {
166 DEBUG(2, ("Failed to start receving packets\n"));
167 status
= NT_STATUS_PIPE_BROKEN
;
170 tevent_req_set_callback(subreq
, named_pipe_packet_process
, npc
);
172 *pnpa
= talloc_steal(mem_ctx
, npa
);
173 status
= NT_STATUS_OK
;
175 talloc_free(tmp_ctx
);
179 /****************************************************************************
180 Make an internal namedpipes structure
181 ****************************************************************************/
183 struct pipes_struct
*make_internal_rpc_pipe_p(TALLOC_CTX
*mem_ctx
,
184 const struct ndr_syntax_id
*syntax
,
185 const struct tsocket_address
*remote_address
,
186 const struct auth_session_info
*session_info
,
187 struct messaging_context
*msg_ctx
)
189 struct pipes_struct
*p
;
190 struct pipe_rpc_fns
*context_fns
;
191 const char *pipe_name
;
193 const struct ndr_interface_table
*table
;
195 table
= ndr_table_by_uuid(&syntax
->uuid
);
197 DEBUG(0,("unknown interface\n"));
201 pipe_name
= dcerpc_default_transport_endpoint(mem_ctx
, NCACN_NP
, table
);
203 DEBUG(4,("Create pipe requested %s\n", pipe_name
));
205 ret
= make_base_pipes_struct(mem_ctx
, msg_ctx
, pipe_name
,
206 NCALRPC
, RPC_LITTLE_ENDIAN
,
207 remote_address
, NULL
, &p
);
209 DEBUG(0,("ERROR! no memory for pipes_struct!\n"));
213 if (!init_pipe_handles(p
, syntax
)) {
214 DEBUG(0,("open_rpc_pipe_p: init_pipe_handles failed.\n"));
219 p
->session_info
= copy_session_info(p
, session_info
);
220 if (p
->session_info
== NULL
) {
221 DEBUG(0, ("open_rpc_pipe_p: copy_serverinfo failed\n"));
222 close_policy_by_pipe(p
);
227 context_fns
= talloc(p
, struct pipe_rpc_fns
);
228 if (context_fns
== NULL
) {
229 DEBUG(0,("talloc() failed!\n"));
234 context_fns
->next
= context_fns
->prev
= NULL
;
235 context_fns
->n_cmds
= rpc_srv_get_pipe_num_cmds(syntax
);
236 context_fns
->cmds
= rpc_srv_get_pipe_cmds(syntax
);
237 context_fns
->context_id
= 0;
238 context_fns
->syntax
= *syntax
;
240 /* add to the list of open contexts */
241 DLIST_ADD(p
->contexts
, context_fns
);
243 DEBUG(4,("Created internal pipe %s\n", pipe_name
));
248 static NTSTATUS
rpcint_dispatch(struct pipes_struct
*p
,
251 const DATA_BLOB
*in_data
,
254 struct pipe_rpc_fns
*fns
= find_pipe_fns_by_context(p
->contexts
, 0);
255 uint32_t num_cmds
= fns
->n_cmds
;
256 const struct api_struct
*cmds
= fns
->cmds
;
263 for (i
= 0; i
< num_cmds
; i
++) {
264 if (cmds
[i
].opnum
== opnum
&& cmds
[i
].fn
!= NULL
) {
270 return NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE
;
273 p
->in_data
.data
= *in_data
;
274 p
->out_data
.rdata
= data_blob_null
;
277 p
->in_data
.data
= data_blob_null
;
279 data_blob_free(&p
->out_data
.rdata
);
280 talloc_free_children(p
->mem_ctx
);
281 return NT_STATUS_RPC_CALL_FAILED
;
284 if (p
->fault_state
) {
287 status
= NT_STATUS(p
->fault_state
);
289 data_blob_free(&p
->out_data
.rdata
);
290 talloc_free_children(p
->mem_ctx
);
294 *out_data
= p
->out_data
.rdata
;
295 talloc_steal(mem_ctx
, out_data
->data
);
296 p
->out_data
.rdata
= data_blob_null
;
298 talloc_free_children(p
->mem_ctx
);
302 struct rpcint_bh_state
{
303 struct pipes_struct
*p
;
306 static bool rpcint_bh_is_connected(struct dcerpc_binding_handle
*h
)
308 struct rpcint_bh_state
*hs
= dcerpc_binding_handle_data(h
,
309 struct rpcint_bh_state
);
318 static uint32_t rpcint_bh_set_timeout(struct dcerpc_binding_handle
*h
,
321 /* TODO: implement timeouts */
325 struct rpcint_bh_raw_call_state
{
331 static struct tevent_req
*rpcint_bh_raw_call_send(TALLOC_CTX
*mem_ctx
,
332 struct tevent_context
*ev
,
333 struct dcerpc_binding_handle
*h
,
334 const struct GUID
*object
,
337 const uint8_t *in_data
,
340 struct rpcint_bh_state
*hs
=
341 dcerpc_binding_handle_data(h
,
342 struct rpcint_bh_state
);
343 struct tevent_req
*req
;
344 struct rpcint_bh_raw_call_state
*state
;
348 req
= tevent_req_create(mem_ctx
, &state
,
349 struct rpcint_bh_raw_call_state
);
353 state
->in_data
.data
= discard_const_p(uint8_t, in_data
);
354 state
->in_data
.length
= in_length
;
356 ok
= rpcint_bh_is_connected(h
);
358 tevent_req_nterror(req
, NT_STATUS_CONNECTION_DISCONNECTED
);
359 return tevent_req_post(req
, ev
);
362 /* TODO: allow async */
363 status
= rpcint_dispatch(hs
->p
, state
, opnum
,
366 if (!NT_STATUS_IS_OK(status
)) {
367 tevent_req_nterror(req
, status
);
368 return tevent_req_post(req
, ev
);
371 tevent_req_done(req
);
372 return tevent_req_post(req
, ev
);
375 static NTSTATUS
rpcint_bh_raw_call_recv(struct tevent_req
*req
,
381 struct rpcint_bh_raw_call_state
*state
=
383 struct rpcint_bh_raw_call_state
);
386 if (tevent_req_is_nterror(req
, &status
)) {
387 tevent_req_received(req
);
391 *out_data
= talloc_move(mem_ctx
, &state
->out_data
.data
);
392 *out_length
= state
->out_data
.length
;
394 tevent_req_received(req
);
398 struct rpcint_bh_disconnect_state
{
402 static struct tevent_req
*rpcint_bh_disconnect_send(TALLOC_CTX
*mem_ctx
,
403 struct tevent_context
*ev
,
404 struct dcerpc_binding_handle
*h
)
406 struct rpcint_bh_state
*hs
= dcerpc_binding_handle_data(h
,
407 struct rpcint_bh_state
);
408 struct tevent_req
*req
;
409 struct rpcint_bh_disconnect_state
*state
;
412 req
= tevent_req_create(mem_ctx
, &state
,
413 struct rpcint_bh_disconnect_state
);
418 ok
= rpcint_bh_is_connected(h
);
420 tevent_req_nterror(req
, NT_STATUS_CONNECTION_DISCONNECTED
);
421 return tevent_req_post(req
, ev
);
425 * TODO: do a real async disconnect ...
427 * For now the caller needs to free pipes_struct
431 tevent_req_done(req
);
432 return tevent_req_post(req
, ev
);
435 static NTSTATUS
rpcint_bh_disconnect_recv(struct tevent_req
*req
)
439 if (tevent_req_is_nterror(req
, &status
)) {
440 tevent_req_received(req
);
444 tevent_req_received(req
);
448 static bool rpcint_bh_ref_alloc(struct dcerpc_binding_handle
*h
)
453 static void rpcint_bh_do_ndr_print(struct dcerpc_binding_handle
*h
,
455 const void *_struct_ptr
,
456 const struct ndr_interface_call
*call
)
458 void *struct_ptr
= discard_const(_struct_ptr
);
460 if (DEBUGLEVEL
< 11) {
464 if (ndr_flags
& NDR_IN
) {
465 ndr_print_function_debug(call
->ndr_print
,
470 if (ndr_flags
& NDR_OUT
) {
471 ndr_print_function_debug(call
->ndr_print
,
478 static const struct dcerpc_binding_handle_ops rpcint_bh_ops
= {
480 .is_connected
= rpcint_bh_is_connected
,
481 .set_timeout
= rpcint_bh_set_timeout
,
482 .raw_call_send
= rpcint_bh_raw_call_send
,
483 .raw_call_recv
= rpcint_bh_raw_call_recv
,
484 .disconnect_send
= rpcint_bh_disconnect_send
,
485 .disconnect_recv
= rpcint_bh_disconnect_recv
,
487 .ref_alloc
= rpcint_bh_ref_alloc
,
488 .do_ndr_print
= rpcint_bh_do_ndr_print
,
491 static NTSTATUS
rpcint_binding_handle_ex(TALLOC_CTX
*mem_ctx
,
492 const struct ndr_syntax_id
*abstract_syntax
,
493 const struct ndr_interface_table
*ndr_table
,
494 const struct tsocket_address
*remote_address
,
495 const struct auth_session_info
*session_info
,
496 struct messaging_context
*msg_ctx
,
497 struct dcerpc_binding_handle
**binding_handle
)
499 struct dcerpc_binding_handle
*h
;
500 struct rpcint_bh_state
*hs
;
503 abstract_syntax
= &ndr_table
->syntax_id
;
506 h
= dcerpc_binding_handle_create(mem_ctx
,
511 struct rpcint_bh_state
,
514 return NT_STATUS_NO_MEMORY
;
516 hs
->p
= make_internal_rpc_pipe_p(hs
,
523 return NT_STATUS_NO_MEMORY
;
530 * @brief Create a new DCERPC Binding Handle which uses a local dispatch function.
532 * @param[in] mem_ctx The memory context to use.
534 * @param[in] ndr_table Normally the ndr_table_<name>.
536 * @param[in] remote_address The info about the connected client.
538 * @param[in] serversupplied_info The server supplied authentication function.
540 * @param[in] msg_ctx The messaging context that can be used by the server
542 * @param[out] binding_handle A pointer to store the connected
543 * dcerpc_binding_handle
545 * @return NT_STATUS_OK on success, a corresponding NT status if an
549 * struct dcerpc_binding_handle *winreg_binding;
552 * status = rpcint_binding_handle(tmp_ctx,
560 NTSTATUS
rpcint_binding_handle(TALLOC_CTX
*mem_ctx
,
561 const struct ndr_interface_table
*ndr_table
,
562 const struct tsocket_address
*remote_address
,
563 const struct auth_session_info
*session_info
,
564 struct messaging_context
*msg_ctx
,
565 struct dcerpc_binding_handle
**binding_handle
)
567 return rpcint_binding_handle_ex(mem_ctx
, NULL
, ndr_table
, remote_address
,
568 session_info
, msg_ctx
, binding_handle
);
574 * @brief Create a new RPC client context which uses a local transport.
576 * This creates a local transport. It is a shortcut to directly call the server
577 * functions and avoid marshalling.
578 * NOTE: this function should be used only by rpc_pipe_open_interface()
580 * @param[in] mem_ctx The memory context to use.
582 * @param[in] abstract_syntax Normally the syntax_id of the autogenerated
585 * @param[in] serversupplied_info The server supplied authentication function.
587 * @param[in] remote_address The client address information.
589 * @param[in] msg_ctx The messaging context to use.
591 * @param[out] presult A pointer to store the connected rpc client pipe.
593 * @return NT_STATUS_OK on success, a corresponding NT status if an
596 NTSTATUS
rpc_pipe_open_internal(TALLOC_CTX
*mem_ctx
,
597 const struct ndr_syntax_id
*abstract_syntax
,
598 const struct auth_session_info
*session_info
,
599 const struct tsocket_address
*remote_address
,
600 struct messaging_context
*msg_ctx
,
601 struct rpc_pipe_client
**presult
)
603 struct rpc_pipe_client
*result
;
606 result
= talloc_zero(mem_ctx
, struct rpc_pipe_client
);
607 if (result
== NULL
) {
608 return NT_STATUS_NO_MEMORY
;
611 result
->abstract_syntax
= *abstract_syntax
;
612 result
->transfer_syntax
= ndr_transfer_syntax_ndr
;
614 if (remote_address
== NULL
) {
615 struct tsocket_address
*local
;
618 rc
= tsocket_address_inet_from_strings(mem_ctx
,
625 return NT_STATUS_NO_MEMORY
;
628 remote_address
= local
;
631 result
->max_xmit_frag
= -1;
632 result
->max_recv_frag
= -1;
634 status
= rpcint_binding_handle_ex(result
,
640 &result
->binding_handle
);
641 if (!NT_STATUS_IS_OK(status
)) {
650 /****************************************************************************
651 * External pipes functions
652 ***************************************************************************/
654 NTSTATUS
make_external_rpc_pipe(TALLOC_CTX
*mem_ctx
,
655 const char *pipe_name
,
656 const struct tsocket_address
*local_address
,
657 const struct tsocket_address
*remote_address
,
658 const struct auth_session_info
*session_info
,
659 struct npa_state
**pnpa
)
661 TALLOC_CTX
*tmp_ctx
= talloc_stackframe();
662 struct auth_session_info_transport
*session_info_t
;
663 struct tevent_context
*ev_ctx
;
664 struct tevent_req
*subreq
;
665 const char *socket_np_dir
;
666 const char *socket_dir
;
667 struct npa_state
*npa
;
673 npa
= npa_state_init(tmp_ctx
);
675 status
= NT_STATUS_NO_MEMORY
;
679 socket_dir
= lp_parm_const_string(GLOBAL_SECTION_SNUM
,
683 if (socket_dir
== NULL
) {
684 DEBUG(0, ("external_rpc_pipe: socket_dir not set\n"));
685 status
= NT_STATUS_PIPE_NOT_AVAILABLE
;
689 socket_np_dir
= talloc_asprintf(tmp_ctx
, "%s/np", socket_dir
);
690 if (socket_np_dir
== NULL
) {
691 DEBUG(0, ("talloc_asprintf failed\n"));
692 status
= NT_STATUS_NO_MEMORY
;
696 session_info_t
= talloc_zero(tmp_ctx
,
697 struct auth_session_info_transport
);
698 if (session_info_t
== NULL
) {
699 DEBUG(0, ("talloc failed\n"));
700 status
= NT_STATUS_NO_MEMORY
;
704 session_info_t
->session_info
= copy_session_info(session_info_t
,
706 if (session_info_t
->session_info
== NULL
) {
707 DEBUG(0, ("copy_session_info failed\n"));
708 status
= NT_STATUS_NO_MEMORY
;
712 ev_ctx
= s3_tevent_context_init(tmp_ctx
);
713 if (ev_ctx
== NULL
) {
714 DEBUG(0, ("s3_tevent_context_init failed\n"));
715 status
= NT_STATUS_NO_MEMORY
;
720 subreq
= tstream_npa_connect_send(tmp_ctx
,
724 remote_address
, /* client_addr */
725 NULL
, /* client_name */
726 local_address
, /* server_addr */
727 NULL
, /* server_name */
729 if (subreq
== NULL
) {
731 DEBUG(0, ("tstream_npa_connect_send to %s for pipe %s and "
732 "user %s\\%s failed\n",
733 socket_np_dir
, pipe_name
, session_info_t
->session_info
->info
->domain_name
,
734 session_info_t
->session_info
->info
->account_name
));
735 status
= NT_STATUS_OBJECT_NAME_NOT_FOUND
;
738 ok
= tevent_req_poll(subreq
, ev_ctx
);
741 DEBUG(0, ("tevent_req_poll to %s for pipe %s and user %s\\%s "
742 "failed for tstream_npa_connect: %s\n",
745 session_info_t
->session_info
->info
->domain_name
,
746 session_info_t
->session_info
->info
->account_name
,
748 status
= NT_STATUS_OBJECT_NAME_NOT_FOUND
;
752 rc
= tstream_npa_connect_recv(subreq
,
758 &npa
->allocation_size
);
763 if (errno
== ENOENT
) {
767 DEBUG(l
, ("tstream_npa_connect_recv to %s for pipe %s and "
768 "user %s\\%s failed: %s\n",
771 session_info_t
->session_info
->info
->domain_name
,
772 session_info_t
->session_info
->info
->account_name
,
773 strerror(sys_errno
)));
774 status
= NT_STATUS_OBJECT_NAME_NOT_FOUND
;
778 *pnpa
= talloc_steal(mem_ctx
, npa
);
779 status
= NT_STATUS_OK
;
781 talloc_free(tmp_ctx
);
786 struct np_proxy_state
*make_external_rpc_pipe_p(TALLOC_CTX
*mem_ctx
,
787 const char *pipe_name
,
788 const struct tsocket_address
*local_address
,
789 const struct tsocket_address
*remote_address
,
790 const struct auth_session_info
*session_info
)
792 struct np_proxy_state
*result
;
794 const char *socket_dir
;
795 struct tevent_context
*ev
;
796 struct tevent_req
*subreq
;
797 struct auth_session_info_transport
*session_info_t
;
802 result
= talloc(mem_ctx
, struct np_proxy_state
);
803 if (result
== NULL
) {
804 DEBUG(0, ("talloc failed\n"));
808 result
->read_queue
= tevent_queue_create(result
, "np_read");
809 if (result
->read_queue
== NULL
) {
810 DEBUG(0, ("tevent_queue_create failed\n"));
814 result
->write_queue
= tevent_queue_create(result
, "np_write");
815 if (result
->write_queue
== NULL
) {
816 DEBUG(0, ("tevent_queue_create failed\n"));
820 ev
= s3_tevent_context_init(talloc_tos());
822 DEBUG(0, ("s3_tevent_context_init failed\n"));
826 socket_dir
= lp_parm_const_string(
827 GLOBAL_SECTION_SNUM
, "external_rpc_pipe", "socket_dir",
829 if (socket_dir
== NULL
) {
830 DEBUG(0, ("external_rpc_pipe:socket_dir not set\n"));
833 socket_np_dir
= talloc_asprintf(talloc_tos(), "%s/np", socket_dir
);
834 if (socket_np_dir
== NULL
) {
835 DEBUG(0, ("talloc_asprintf failed\n"));
839 session_info_t
= talloc_zero(talloc_tos(), struct auth_session_info_transport
);
840 if (session_info_t
== NULL
) {
841 DEBUG(0, ("talloc failed\n"));
845 session_info_t
->session_info
= copy_session_info(session_info_t
,
847 if (session_info_t
->session_info
== NULL
) {
848 DEBUG(0, ("copy_session_info failed\n"));
853 subreq
= tstream_npa_connect_send(talloc_tos(), ev
,
856 remote_address
, /* client_addr */
857 NULL
, /* client_name */
858 local_address
, /* server_addr */
859 NULL
, /* server_name */
861 if (subreq
== NULL
) {
863 DEBUG(0, ("tstream_npa_connect_send to %s for pipe %s and "
864 "user %s\\%s failed\n",
865 socket_np_dir
, pipe_name
, session_info_t
->session_info
->info
->domain_name
,
866 session_info_t
->session_info
->info
->account_name
));
869 ok
= tevent_req_poll(subreq
, ev
);
872 DEBUG(0, ("tevent_req_poll to %s for pipe %s and user %s\\%s "
873 "failed for tstream_npa_connect: %s\n",
874 socket_np_dir
, pipe_name
, session_info_t
->session_info
->info
->domain_name
,
875 session_info_t
->session_info
->info
->account_name
,
880 ret
= tstream_npa_connect_recv(subreq
, &sys_errno
,
884 &result
->device_state
,
885 &result
->allocation_size
);
889 if (errno
== ENOENT
) {
892 DEBUG(l
, ("tstream_npa_connect_recv to %s for pipe %s and "
893 "user %s\\%s failed: %s\n",
894 socket_np_dir
, pipe_name
, session_info_t
->session_info
->info
->domain_name
,
895 session_info_t
->session_info
->info
->account_name
,
896 strerror(sys_errno
)));
907 static NTSTATUS
rpc_pipe_open_external(TALLOC_CTX
*mem_ctx
,
908 const char *pipe_name
,
909 const struct ndr_interface_table
*table
,
910 const struct auth_session_info
*session_info
,
911 struct rpc_pipe_client
**_result
)
913 struct tsocket_address
*local
, *remote
;
914 struct rpc_pipe_client
*result
= NULL
;
915 struct np_proxy_state
*proxy_state
= NULL
;
916 struct pipe_auth_data
*auth
;
920 /* this is an internal connection, fake up ip addresses */
921 ret
= tsocket_address_inet_from_strings(talloc_tos(), "ip",
924 return NT_STATUS_NO_MEMORY
;
926 ret
= tsocket_address_inet_from_strings(talloc_tos(), "ip",
929 return NT_STATUS_NO_MEMORY
;
932 proxy_state
= make_external_rpc_pipe_p(mem_ctx
, pipe_name
,
933 local
, remote
, session_info
);
935 DEBUG(1, ("Unable to make proxy_state for connection to %s.\n", pipe_name
));
936 return NT_STATUS_UNSUCCESSFUL
;
939 result
= talloc_zero(mem_ctx
, struct rpc_pipe_client
);
940 if (result
== NULL
) {
941 status
= NT_STATUS_NO_MEMORY
;
945 result
->abstract_syntax
= table
->syntax_id
;
946 result
->transfer_syntax
= ndr_transfer_syntax_ndr
;
948 result
->desthost
= get_myname(result
);
949 result
->srv_name_slash
= talloc_asprintf_strupper_m(
950 result
, "\\\\%s", result
->desthost
);
951 if ((result
->desthost
== NULL
) || (result
->srv_name_slash
== NULL
)) {
952 status
= NT_STATUS_NO_MEMORY
;
956 result
->max_xmit_frag
= RPC_MAX_PDU_FRAG_LEN
;
957 result
->max_recv_frag
= RPC_MAX_PDU_FRAG_LEN
;
959 status
= rpc_transport_tstream_init(result
,
962 if (!NT_STATUS_IS_OK(status
)) {
966 result
->binding_handle
= rpccli_bh_create(result
, NULL
, table
);
967 if (result
->binding_handle
== NULL
) {
968 status
= NT_STATUS_NO_MEMORY
;
969 DEBUG(0, ("Failed to create binding handle.\n"));
973 result
->auth
= talloc_zero(result
, struct pipe_auth_data
);
975 status
= NT_STATUS_NO_MEMORY
;
978 result
->auth
->auth_type
= DCERPC_AUTH_TYPE_NONE
;
979 result
->auth
->auth_level
= DCERPC_AUTH_LEVEL_NONE
;
981 status
= rpccli_anon_bind_data(result
, &auth
);
982 if (!NT_STATUS_IS_OK(status
)) {
983 DEBUG(0, ("Failed to initialize anonymous bind.\n"));
987 status
= rpc_pipe_bind(result
, auth
);
988 if (!NT_STATUS_IS_OK(status
)) {
989 DEBUG(0, ("Failed to bind external pipe.\n"));
994 if (!NT_STATUS_IS_OK(status
)) {
997 TALLOC_FREE(proxy_state
);
1003 * @brief Create a new RPC client context which uses a local dispatch function
1004 * or a remote transport, depending on rpc_server configuration for the
1007 * @param[in] mem_ctx The memory context to use.
1009 * @param[in] abstract_syntax Normally the syntax_id of the autogenerated
1012 * @param[in] serversupplied_info The server supplied authentication function.
1014 * @param[in] remote_address The client address information.
1016 * @param[in] msg_ctx The messaging context to use.
1018 * @param[out] presult A pointer to store the connected rpc client pipe.
1020 * @return NT_STATUS_OK on success, a corresponding NT status if an
1024 * struct rpc_pipe_client *winreg_pipe;
1027 * status = rpc_pipe_open_interface(tmp_ctx,
1028 * &ndr_table_winreg.syntax_id,
1035 NTSTATUS
rpc_pipe_open_interface(TALLOC_CTX
*mem_ctx
,
1036 const struct ndr_interface_table
*table
,
1037 const struct auth_session_info
*session_info
,
1038 const struct tsocket_address
*remote_address
,
1039 struct messaging_context
*msg_ctx
,
1040 struct rpc_pipe_client
**cli_pipe
)
1042 struct rpc_pipe_client
*cli
= NULL
;
1043 enum rpc_service_mode_e pipe_mode
;
1044 const char *pipe_name
;
1046 TALLOC_CTX
*tmp_ctx
;
1048 if (cli_pipe
!= NULL
) {
1049 if (rpccli_is_connected(*cli_pipe
)) {
1050 return NT_STATUS_OK
;
1052 TALLOC_FREE(*cli_pipe
);
1056 tmp_ctx
= talloc_stackframe();
1057 if (tmp_ctx
== NULL
) {
1058 return NT_STATUS_NO_MEMORY
;
1061 pipe_name
= dcerpc_default_transport_endpoint(mem_ctx
, NCACN_NP
, table
);
1062 if (pipe_name
== NULL
) {
1063 DEBUG(1, ("Unable to find pipe name to forward %s to.\n", table
->name
));
1064 status
= NT_STATUS_INVALID_PARAMETER
;
1068 while (pipe_name
[0] == '\\') {
1072 DEBUG(5, ("Connecting to %s pipe.\n", pipe_name
));
1074 pipe_mode
= rpc_service_mode(pipe_name
);
1076 switch (pipe_mode
) {
1077 case RPC_SERVICE_MODE_EMBEDDED
:
1078 status
= rpc_pipe_open_internal(tmp_ctx
,
1079 &table
->syntax_id
, session_info
,
1080 remote_address
, msg_ctx
,
1082 if (!NT_STATUS_IS_OK(status
)) {
1086 case RPC_SERVICE_MODE_EXTERNAL
:
1087 /* It would be nice to just use rpc_pipe_open_ncalrpc() but
1088 * for now we need to use the special proxy setup to connect
1091 status
= rpc_pipe_open_external(tmp_ctx
,
1095 if (!NT_STATUS_IS_OK(status
)) {
1099 case RPC_SERVICE_MODE_DISABLED
:
1100 status
= NT_STATUS_NOT_IMPLEMENTED
;
1101 DEBUG(0, ("Service pipe %s is disabled in config file: %s",
1102 pipe_name
, nt_errstr(status
)));
1106 status
= NT_STATUS_OK
;
1108 if (NT_STATUS_IS_OK(status
) && cli_pipe
!= NULL
) {
1109 *cli_pipe
= talloc_move(mem_ctx
, &cli
);
1111 TALLOC_FREE(tmp_ctx
);