2 Unix SMB/CIFS implementation.
4 dcerpc connect functions
6 Copyright (C) Andrew Tridgell 2003
7 Copyright (C) Jelmer Vernooij 2004
8 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
9 Copyright (C) Rafal Szczesniak 2005
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/>.
27 #include "libcli/composite/composite.h"
28 #include "libcli/smb_composite/smb_composite.h"
29 #include "lib/events/events.h"
30 #include "libcli/smb2/smb2.h"
31 #include "libcli/smb2/smb2_calls.h"
32 #include "librpc/rpc/dcerpc.h"
33 #include "librpc/rpc/dcerpc_proto.h"
34 #include "auth/credentials/credentials.h"
35 #include "param/param.h"
36 #include "libcli/resolve/resolve.h"
39 struct pipe_np_smb_state {
40 struct smb_composite_connect conn;
41 struct smbcli_tree *tree;
42 struct dcerpc_pipe_connect io;
47 Stage 3 of ncacn_np_smb: Named pipe opened (or not)
49 static void continue_pipe_open_smb(struct composite_context *ctx)
51 struct composite_context *c = talloc_get_type(ctx->async.private_data,
52 struct composite_context);
54 /* receive result of named pipe open request on smb */
55 c->status = dcerpc_pipe_open_smb_recv(ctx);
56 if (!composite_is_ok(c)) return;
63 Stage 2 of ncacn_np_smb: Open a named pipe after successful smb connection
65 static void continue_smb_connect(struct composite_context *ctx)
67 struct composite_context *open_ctx;
68 struct composite_context *c = talloc_get_type(ctx->async.private_data,
69 struct composite_context);
70 struct pipe_np_smb_state *s = talloc_get_type(c->private_data,
71 struct pipe_np_smb_state);
73 /* receive result of smb connect request */
74 c->status = smb_composite_connect_recv(ctx, c);
75 if (!composite_is_ok(c)) return;
77 /* prepare named pipe open parameters */
78 s->tree = s->conn.out.tree;
79 s->io.pipe_name = s->io.binding->endpoint;
81 /* send named pipe open request */
82 open_ctx = dcerpc_pipe_open_smb_send(s->io.pipe, s->tree, s->io.pipe_name);
83 if (composite_nomem(open_ctx, c)) return;
85 composite_continue(c, open_ctx, continue_pipe_open_smb, c);
90 Initiate async open of a rpc connection to a rpc pipe on SMB using
91 the binding structure to determine the endpoint and options
93 static struct composite_context *dcerpc_pipe_connect_ncacn_np_smb_send(TALLOC_CTX *mem_ctx, struct dcerpc_pipe_connect *io, struct loadparm_context *lp_ctx)
95 struct composite_context *c;
96 struct pipe_np_smb_state *s;
97 struct composite_context *conn_req;
98 struct smb_composite_connect *conn;
100 /* composite context allocation and setup */
101 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
102 if (c == NULL) return NULL;
104 s = talloc_zero(c, struct pipe_np_smb_state);
105 if (composite_nomem(s, c)) return c;
111 /* prepare smb connection parameters: we're connecting to IPC$ share on
113 conn->in.dest_host = s->io.binding->host;
114 conn->in.dest_ports = lp_smb_ports(lp_ctx);
115 if (s->io.binding->target_hostname == NULL)
116 conn->in.called_name = "*SMBSERVER"; /* FIXME: This is invalid */
118 conn->in.called_name = s->io.binding->target_hostname;
119 conn->in.service = "IPC$";
120 conn->in.service_type = NULL;
121 conn->in.workgroup = lp_workgroup(lp_ctx);
123 lp_smbcli_options(lp_ctx, &conn->in.options);
126 * provide proper credentials - user supplied, but allow a
127 * fallback to anonymous if this is an schannel connection
128 * (might be NT4 not allowing machine logins at session
131 s->conn.in.credentials = s->io.creds;
132 if (s->io.binding->flags & DCERPC_SCHANNEL) {
133 conn->in.fallback_to_anonymous = true;
135 conn->in.fallback_to_anonymous = false;
138 /* send smb connect request */
139 conn_req = smb_composite_connect_send(conn, s->io.pipe->conn,
140 lp_resolve_context(lp_ctx),
141 s->io.pipe->conn->event_ctx);
142 if (composite_nomem(conn_req, c)) return c;
144 composite_continue(c, conn_req, continue_smb_connect, c);
150 Receive result of a rpc connection to a rpc pipe on SMB
152 static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb_recv(struct composite_context *c)
154 NTSTATUS status = composite_wait(c);
161 struct pipe_np_smb2_state {
162 struct smb2_tree *tree;
163 struct dcerpc_pipe_connect io;
168 Stage 3 of ncacn_np_smb: Named pipe opened (or not)
170 static void continue_pipe_open_smb2(struct composite_context *ctx)
172 struct composite_context *c = talloc_get_type(ctx->async.private_data,
173 struct composite_context);
175 /* receive result of named pipe open request on smb2 */
176 c->status = dcerpc_pipe_open_smb2_recv(ctx);
177 if (!composite_is_ok(c)) return;
184 Stage 2 of ncacn_np_smb2: Open a named pipe after successful smb2 connection
186 static void continue_smb2_connect(struct composite_context *ctx)
188 struct composite_context *open_req;
189 struct composite_context *c = talloc_get_type(ctx->async.private_data,
190 struct composite_context);
191 struct pipe_np_smb2_state *s = talloc_get_type(c->private_data,
192 struct pipe_np_smb2_state);
194 /* receive result of smb2 connect request */
195 c->status = smb2_connect_recv(ctx, c, &s->tree);
196 if (!composite_is_ok(c)) return;
198 /* prepare named pipe open parameters */
199 s->io.pipe_name = s->io.binding->endpoint;
201 /* send named pipe open request */
202 open_req = dcerpc_pipe_open_smb2_send(s->io.pipe, s->tree, s->io.pipe_name);
203 if (composite_nomem(open_req, c)) return;
205 composite_continue(c, open_req, continue_pipe_open_smb2, c);
210 Initiate async open of a rpc connection request on SMB2 using
211 the binding structure to determine the endpoint and options
213 static struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(
215 struct dcerpc_pipe_connect *io,
216 struct loadparm_context *lp_ctx)
218 struct composite_context *c;
219 struct pipe_np_smb2_state *s;
220 struct composite_context *conn_req;
221 struct smbcli_options options;
223 /* composite context allocation and setup */
224 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
225 if (c == NULL) return NULL;
227 s = talloc_zero(c, struct pipe_np_smb2_state);
228 if (composite_nomem(s, c)) return c;
234 * provide proper credentials - user supplied or anonymous in case this is
235 * schannel connection
237 if (s->io.binding->flags & DCERPC_SCHANNEL) {
238 s->io.creds = cli_credentials_init(mem_ctx);
239 if (composite_nomem(s->io.creds, c)) return c;
241 cli_credentials_guess(s->io.creds, lp_ctx);
244 lp_smbcli_options(lp_ctx, &options);
246 /* send smb2 connect request */
247 conn_req = smb2_connect_send(mem_ctx, s->io.binding->host, "IPC$",
252 composite_continue(c, conn_req, continue_smb2_connect, c);
258 Receive result of a rpc connection to a rpc pipe on SMB2
260 static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context *c)
262 NTSTATUS status = composite_wait(c);
269 struct pipe_ip_tcp_state {
270 struct dcerpc_pipe_connect io;
272 const char *target_hostname;
278 Stage 2 of ncacn_ip_tcp: rpc pipe opened (or not)
280 static void continue_pipe_open_ncacn_ip_tcp(struct composite_context *ctx)
282 struct composite_context *c = talloc_get_type(ctx->async.private_data,
283 struct composite_context);
285 /* receive result of named pipe open request on tcp/ip */
286 c->status = dcerpc_pipe_open_tcp_recv(ctx);
287 if (!composite_is_ok(c)) return;
294 Initiate async open of a rpc connection to a rpc pipe on TCP/IP using
295 the binding structure to determine the endpoint and options
297 static struct composite_context* dcerpc_pipe_connect_ncacn_ip_tcp_send(TALLOC_CTX *mem_ctx,
298 struct dcerpc_pipe_connect *io)
300 struct composite_context *c;
301 struct pipe_ip_tcp_state *s;
302 struct composite_context *pipe_req;
304 /* composite context allocation and setup */
305 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
306 if (c == NULL) return NULL;
308 s = talloc_zero(c, struct pipe_ip_tcp_state);
309 if (composite_nomem(s, c)) return c;
312 /* store input parameters in state structure */
314 s->host = talloc_reference(c, io->binding->host);
315 s->target_hostname = talloc_reference(c, io->binding->target_hostname);
316 /* port number is a binding endpoint here */
317 s->port = atoi(io->binding->endpoint);
319 /* send pipe open request on tcp/ip */
320 pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->host, s->target_hostname,
321 s->port, io->resolve_ctx);
322 composite_continue(c, pipe_req, continue_pipe_open_ncacn_ip_tcp, c);
328 Receive result of a rpc connection to a rpc pipe on TCP/IP
330 static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp_recv(struct composite_context *c)
332 NTSTATUS status = composite_wait(c);
339 struct pipe_unix_state {
340 struct dcerpc_pipe_connect io;
346 Stage 2 of ncacn_unix: rpc pipe opened (or not)
348 static void continue_pipe_open_ncacn_unix_stream(struct composite_context *ctx)
350 struct composite_context *c = talloc_get_type(ctx->async.private_data,
351 struct composite_context);
353 /* receive result of pipe open request on unix socket */
354 c->status = dcerpc_pipe_open_unix_stream_recv(ctx);
355 if (!composite_is_ok(c)) return;
362 Initiate async open of a rpc connection to a rpc pipe on unix socket using
363 the binding structure to determine the endpoint and options
365 static struct composite_context* dcerpc_pipe_connect_ncacn_unix_stream_send(TALLOC_CTX *mem_ctx,
366 struct dcerpc_pipe_connect *io)
368 struct composite_context *c;
369 struct pipe_unix_state *s;
370 struct composite_context *pipe_req;
372 /* composite context allocation and setup */
373 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
374 if (c == NULL) return NULL;
376 s = talloc_zero(c, struct pipe_unix_state);
377 if (composite_nomem(s, c)) return c;
380 /* prepare pipe open parameters and store them in state structure
381 also, verify whether biding endpoint is not null */
384 if (!io->binding->endpoint) {
385 DEBUG(0, ("Path to unix socket not specified\n"));
386 composite_error(c, NT_STATUS_INVALID_PARAMETER);
390 s->path = talloc_strdup(c, io->binding->endpoint); /* path is a binding endpoint here */
391 if (composite_nomem(s->path, c)) return c;
393 /* send pipe open request on unix socket */
394 pipe_req = dcerpc_pipe_open_unix_stream_send(s->io.pipe->conn, s->path);
395 composite_continue(c, pipe_req, continue_pipe_open_ncacn_unix_stream, c);
401 Receive result of a rpc connection to a pipe on unix socket
403 static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream_recv(struct composite_context *c)
405 NTSTATUS status = composite_wait(c);
412 struct pipe_ncalrpc_state {
413 struct dcerpc_pipe_connect io;
416 static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c);
419 Stage 2 of ncalrpc: rpc pipe opened (or not)
421 static void continue_pipe_open_ncalrpc(struct composite_context *ctx)
423 struct composite_context *c = talloc_get_type(ctx->async.private_data,
424 struct composite_context);
426 /* receive result of pipe open request on ncalrpc */
427 c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
428 if (!composite_is_ok(c)) return;
435 Initiate async open of a rpc connection request on NCALRPC using
436 the binding structure to determine the endpoint and options
438 static struct composite_context* dcerpc_pipe_connect_ncalrpc_send(TALLOC_CTX *mem_ctx,
439 struct dcerpc_pipe_connect *io, struct loadparm_context *lp_ctx)
441 struct composite_context *c;
442 struct pipe_ncalrpc_state *s;
443 struct composite_context *pipe_req;
445 /* composite context allocation and setup */
446 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
447 if (c == NULL) return NULL;
449 s = talloc_zero(c, struct pipe_ncalrpc_state);
450 if (composite_nomem(s, c)) return c;
453 /* store input parameters in state structure */
456 /* send pipe open request */
457 pipe_req = dcerpc_pipe_open_pipe_send(s->io.pipe->conn, lp_ncalrpc_dir(lp_ctx),
458 s->io.binding->endpoint);
459 composite_continue(c, pipe_req, continue_pipe_open_ncalrpc, c);
465 Receive result of a rpc connection to a rpc pipe on NCALRPC
467 static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c)
469 NTSTATUS status = composite_wait(c);
476 struct pipe_connect_state {
477 struct dcerpc_pipe *pipe;
478 struct dcerpc_binding *binding;
479 const struct ndr_interface_table *table;
480 struct cli_credentials *credentials;
481 struct loadparm_context *lp_ctx;
485 static void continue_map_binding(struct composite_context *ctx);
486 static void continue_connect(struct composite_context *c, struct pipe_connect_state *s);
487 static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx);
488 static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx);
489 static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx);
490 static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx);
491 static void continue_pipe_connect_ncalrpc(struct composite_context *ctx);
492 static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s);
493 static void continue_pipe_auth(struct composite_context *ctx);
497 Stage 2 of pipe_connect_b: Receive result of endpoint mapping
499 static void continue_map_binding(struct composite_context *ctx)
501 struct composite_context *c = talloc_get_type(ctx->async.private_data,
502 struct composite_context);
503 struct pipe_connect_state *s = talloc_get_type(c->private_data,
504 struct pipe_connect_state);
506 c->status = dcerpc_epm_map_binding_recv(ctx);
507 if (!composite_is_ok(c)) return;
509 DEBUG(2,("Mapped to DCERPC endpoint %s\n", s->binding->endpoint));
511 continue_connect(c, s);
516 Stage 2 of pipe_connect_b: Continue connection after endpoint is known
518 static void continue_connect(struct composite_context *c, struct pipe_connect_state *s)
520 struct dcerpc_pipe_connect pc;
522 /* potential exits to another stage by sending an async request */
523 struct composite_context *ncacn_np_smb2_req;
524 struct composite_context *ncacn_np_smb_req;
525 struct composite_context *ncacn_ip_tcp_req;
526 struct composite_context *ncacn_unix_req;
527 struct composite_context *ncalrpc_req;
529 /* dcerpc pipe connect input parameters */
531 pc.binding = s->binding;
532 pc.interface = s->table;
533 pc.creds = s->credentials;
534 pc.resolve_ctx = lp_resolve_context(s->lp_ctx);
536 /* connect dcerpc pipe depending on required transport */
537 switch (s->binding->transport) {
539 if (pc.binding->flags & DCERPC_SMB2) {
540 /* new varient of SMB a.k.a. SMB2 */
541 ncacn_np_smb2_req = dcerpc_pipe_connect_ncacn_np_smb2_send(c, &pc, s->lp_ctx);
542 composite_continue(c, ncacn_np_smb2_req, continue_pipe_connect_ncacn_np_smb2, c);
546 /* good old ordinary SMB */
547 ncacn_np_smb_req = dcerpc_pipe_connect_ncacn_np_smb_send(c, &pc, s->lp_ctx);
548 composite_continue(c, ncacn_np_smb_req, continue_pipe_connect_ncacn_np_smb, c);
554 ncacn_ip_tcp_req = dcerpc_pipe_connect_ncacn_ip_tcp_send(c, &pc);
555 composite_continue(c, ncacn_ip_tcp_req, continue_pipe_connect_ncacn_ip_tcp, c);
558 case NCACN_UNIX_STREAM:
559 ncacn_unix_req = dcerpc_pipe_connect_ncacn_unix_stream_send(c, &pc);
560 composite_continue(c, ncacn_unix_req, continue_pipe_connect_ncacn_unix, c);
564 ncalrpc_req = dcerpc_pipe_connect_ncalrpc_send(c, &pc, s->lp_ctx);
565 composite_continue(c, ncalrpc_req, continue_pipe_connect_ncalrpc, c);
569 /* looks like a transport we don't support now */
570 composite_error(c, NT_STATUS_NOT_SUPPORTED);
576 Stage 3 of pipe_connect_b: Receive result of pipe connect request on
579 static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx)
581 struct composite_context *c = talloc_get_type(ctx->async.private_data,
582 struct composite_context);
583 struct pipe_connect_state *s = talloc_get_type(c->private_data,
584 struct pipe_connect_state);
586 c->status = dcerpc_pipe_connect_ncacn_np_smb2_recv(ctx);
587 if (!composite_is_ok(c)) return;
589 continue_pipe_connect(c, s);
594 Stage 3 of pipe_connect_b: Receive result of pipe connect request on
597 static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx)
599 struct composite_context *c = talloc_get_type(ctx->async.private_data,
600 struct composite_context);
601 struct pipe_connect_state *s = talloc_get_type(c->private_data,
602 struct pipe_connect_state);
604 c->status = dcerpc_pipe_connect_ncacn_np_smb_recv(ctx);
605 if (!composite_is_ok(c)) return;
607 continue_pipe_connect(c, s);
612 Stage 3 of pipe_connect_b: Receive result of pipe connect request on tcp/ip
614 static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx)
616 struct composite_context *c = talloc_get_type(ctx->async.private_data,
617 struct composite_context);
618 struct pipe_connect_state *s = talloc_get_type(c->private_data,
619 struct pipe_connect_state);
621 c->status = dcerpc_pipe_connect_ncacn_ip_tcp_recv(ctx);
622 if (!composite_is_ok(c)) return;
624 continue_pipe_connect(c, s);
629 Stage 3 of pipe_connect_b: Receive result of pipe connect request on unix socket
631 static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx)
633 struct composite_context *c = talloc_get_type(ctx->async.private_data,
634 struct composite_context);
635 struct pipe_connect_state *s = talloc_get_type(c->private_data,
636 struct pipe_connect_state);
638 c->status = dcerpc_pipe_connect_ncacn_unix_stream_recv(ctx);
639 if (!composite_is_ok(c)) return;
641 continue_pipe_connect(c, s);
646 Stage 3 of pipe_connect_b: Receive result of pipe connect request on local rpc
648 static void continue_pipe_connect_ncalrpc(struct composite_context *ctx)
650 struct composite_context *c = talloc_get_type(ctx->async.private_data,
651 struct composite_context);
652 struct pipe_connect_state *s = talloc_get_type(c->private_data,
653 struct pipe_connect_state);
655 c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
656 if (!composite_is_ok(c)) return;
658 continue_pipe_connect(c, s);
663 Stage 4 of pipe_connect_b: Start an authentication on connected dcerpc pipe
664 depending on credentials and binding flags passed.
666 static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s)
668 struct composite_context *auth_bind_req;
670 s->pipe->binding = s->binding;
671 if (!talloc_reference(s->pipe, s->binding)) {
672 composite_error(c, NT_STATUS_NO_MEMORY);
676 auth_bind_req = dcerpc_pipe_auth_send(s->pipe, s->binding, s->table,
677 s->credentials, s->lp_ctx);
678 composite_continue(c, auth_bind_req, continue_pipe_auth, c);
683 Stage 5 of pipe_connect_b: Receive result of pipe authentication request
684 and say if all went ok
686 static void continue_pipe_auth(struct composite_context *ctx)
688 struct composite_context *c = talloc_get_type(ctx->async.private_data,
689 struct composite_context);
690 struct pipe_connect_state *s = talloc_get_type(c->private_data, struct pipe_connect_state);
692 c->status = dcerpc_pipe_auth_recv(ctx, s, &s->pipe);
693 if (!composite_is_ok(c)) return;
700 handle timeouts of a dcerpc connect
702 static void dcerpc_connect_timeout_handler(struct event_context *ev, struct timed_event *te,
703 struct timeval t, void *private)
705 struct composite_context *c = talloc_get_type(private, struct composite_context);
706 composite_error(c, NT_STATUS_IO_TIMEOUT);
710 start a request to open a rpc connection to a rpc pipe, using
711 specified binding structure to determine the endpoint and options
713 _PUBLIC_ struct composite_context* dcerpc_pipe_connect_b_send(TALLOC_CTX *parent_ctx,
714 struct dcerpc_binding *binding,
715 const struct ndr_interface_table *table,
716 struct cli_credentials *credentials,
717 struct event_context *ev,
718 struct loadparm_context *lp_ctx)
720 struct composite_context *c;
721 struct pipe_connect_state *s;
722 struct event_context *new_ev = NULL;
724 /* composite context allocation and setup */
725 c = composite_create(parent_ctx, ev);
730 talloc_steal(c, new_ev);
732 s = talloc_zero(c, struct pipe_connect_state);
733 if (composite_nomem(s, c)) return c;
736 /* initialise dcerpc pipe structure */
737 s->pipe = dcerpc_pipe_init(c, ev, lp_iconv_convenience(lp_ctx));
738 if (composite_nomem(s->pipe, c)) return c;
740 /* store parameters in state structure */
741 s->binding = binding;
743 s->credentials = credentials;
746 event_add_timed(c->event_ctx, c,
747 timeval_current_ofs(DCERPC_REQUEST_TIMEOUT, 0),
748 dcerpc_connect_timeout_handler, c);
750 switch (s->binding->transport) {
752 struct composite_context *binding_req;
753 binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
754 s->pipe->conn->event_ctx,
756 composite_continue(c, binding_req, continue_map_binding, c);
763 if (!s->binding->endpoint) {
764 struct composite_context *binding_req;
765 binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
766 s->pipe->conn->event_ctx,
768 composite_continue(c, binding_req, continue_map_binding, c);
776 continue_connect(c, s);
782 receive result of a request to open a rpc connection to a rpc pipe
784 _PUBLIC_ NTSTATUS dcerpc_pipe_connect_b_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
785 struct dcerpc_pipe **p)
788 struct pipe_connect_state *s;
790 status = composite_wait(c);
792 if (NT_STATUS_IS_OK(status)) {
793 s = talloc_get_type(c->private_data, struct pipe_connect_state);
794 talloc_steal(mem_ctx, s->pipe);
803 open a rpc connection to a rpc pipe, using the specified
804 binding structure to determine the endpoint and options - sync version
806 _PUBLIC_ NTSTATUS dcerpc_pipe_connect_b(TALLOC_CTX *parent_ctx,
807 struct dcerpc_pipe **pp,
808 struct dcerpc_binding *binding,
809 const struct ndr_interface_table *table,
810 struct cli_credentials *credentials,
811 struct event_context *ev,
812 struct loadparm_context *lp_ctx)
814 struct composite_context *c;
816 c = dcerpc_pipe_connect_b_send(parent_ctx, binding, table,
817 credentials, ev, lp_ctx);
818 return dcerpc_pipe_connect_b_recv(c, parent_ctx, pp);
822 struct pipe_conn_state {
823 struct dcerpc_pipe *pipe;
827 static void continue_pipe_connect_b(struct composite_context *ctx);
831 Initiate rpc connection to a rpc pipe, using the specified string
832 binding to determine the endpoint and options.
833 The string is to be parsed to a binding structure first.
835 _PUBLIC_ struct composite_context* dcerpc_pipe_connect_send(TALLOC_CTX *parent_ctx,
837 const struct ndr_interface_table *table,
838 struct cli_credentials *credentials,
839 struct event_context *ev, struct loadparm_context *lp_ctx)
841 struct composite_context *c;
842 struct pipe_conn_state *s;
843 struct dcerpc_binding *b;
844 struct composite_context *pipe_conn_req;
846 /* composite context allocation and setup */
847 c = composite_create(parent_ctx, ev);
852 s = talloc_zero(c, struct pipe_conn_state);
853 if (composite_nomem(s, c)) return c;
856 /* parse binding string to the structure */
857 c->status = dcerpc_parse_binding(c, binding, &b);
858 if (!NT_STATUS_IS_OK(c->status)) {
859 DEBUG(0, ("Failed to parse dcerpc binding '%s'\n", binding));
860 composite_error(c, c->status);
864 DEBUG(3, ("Using binding %s\n", dcerpc_binding_string(c, b)));
867 start connecting to a rpc pipe after binding structure
870 pipe_conn_req = dcerpc_pipe_connect_b_send(c, b, table,
871 credentials, ev, lp_ctx);
872 composite_continue(c, pipe_conn_req, continue_pipe_connect_b, c);
878 Stage 2 of pipe_connect: Receive result of actual pipe connect request
879 and say if we're done ok
881 static void continue_pipe_connect_b(struct composite_context *ctx)
883 struct composite_context *c = talloc_get_type(ctx->async.private_data,
884 struct composite_context);
885 struct pipe_conn_state *s = talloc_get_type(c->private_data,
886 struct pipe_conn_state);
888 c->status = dcerpc_pipe_connect_b_recv(ctx, c, &s->pipe);
889 talloc_steal(s, s->pipe);
890 if (!composite_is_ok(c)) return;
897 Receive result of pipe connect (using binding string) request
898 and return connected pipe structure.
900 NTSTATUS dcerpc_pipe_connect_recv(struct composite_context *c,
902 struct dcerpc_pipe **pp)
905 struct pipe_conn_state *s;
907 status = composite_wait(c);
908 if (NT_STATUS_IS_OK(status)) {
909 s = talloc_get_type(c->private_data, struct pipe_conn_state);
910 *pp = talloc_steal(mem_ctx, s->pipe);
918 Open a rpc connection to a rpc pipe, using the specified string
919 binding to determine the endpoint and options - sync version
921 _PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx,
922 struct dcerpc_pipe **pp,
924 const struct ndr_interface_table *table,
925 struct cli_credentials *credentials,
926 struct event_context *ev,
927 struct loadparm_context *lp_ctx)
929 struct composite_context *c;
930 c = dcerpc_pipe_connect_send(parent_ctx, binding,
931 table, credentials, ev, lp_ctx);
932 return dcerpc_pipe_connect_recv(c, parent_ctx, pp);