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 = lpcfg_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.socket_options = lpcfg_socket_options(lp_ctx);
120 conn->in.service = "IPC$";
121 conn->in.service_type = NULL;
122 conn->in.workgroup = lpcfg_workgroup(lp_ctx);
123 conn->in.gensec_settings = lpcfg_gensec_settings(conn, lp_ctx);
125 lpcfg_smbcli_options(lp_ctx, &conn->in.options);
126 lpcfg_smbcli_session_options(lp_ctx, &conn->in.session_options);
129 * provide proper credentials - user supplied, but allow a
130 * fallback to anonymous if this is an schannel connection
131 * (might be NT4 not allowing machine logins at session
132 * setup) or if asked to do so by the caller (perhaps a SAMR password change?)
134 s->conn.in.credentials = s->io.creds;
135 if (s->io.binding->flags & (DCERPC_SCHANNEL|DCERPC_ANON_FALLBACK)) {
136 conn->in.fallback_to_anonymous = true;
138 conn->in.fallback_to_anonymous = false;
141 /* send smb connect request */
142 conn_req = smb_composite_connect_send(conn, s->io.pipe->conn,
144 s->io.pipe->conn->event_ctx);
145 if (composite_nomem(conn_req, c)) return c;
147 composite_continue(c, conn_req, continue_smb_connect, c);
153 Receive result of a rpc connection to a rpc pipe on SMB
155 static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb_recv(struct composite_context *c)
157 NTSTATUS status = composite_wait(c);
164 struct pipe_np_smb2_state {
165 struct smb2_tree *tree;
166 struct dcerpc_pipe_connect io;
171 Stage 3 of ncacn_np_smb: Named pipe opened (or not)
173 static void continue_pipe_open_smb2(struct composite_context *ctx)
175 struct composite_context *c = talloc_get_type(ctx->async.private_data,
176 struct composite_context);
178 /* receive result of named pipe open request on smb2 */
179 c->status = dcerpc_pipe_open_smb2_recv(ctx);
180 if (!composite_is_ok(c)) return;
187 Stage 2 of ncacn_np_smb2: Open a named pipe after successful smb2 connection
189 static void continue_smb2_connect(struct tevent_req *subreq)
191 struct composite_context *open_req;
192 struct composite_context *c =
193 tevent_req_callback_data(subreq,
194 struct composite_context);
195 struct pipe_np_smb2_state *s = talloc_get_type(c->private_data,
196 struct pipe_np_smb2_state);
198 /* receive result of smb2 connect request */
199 c->status = smb2_connect_recv(subreq, c, &s->tree);
201 if (!composite_is_ok(c)) return;
203 /* prepare named pipe open parameters */
204 s->io.pipe_name = s->io.binding->endpoint;
206 /* send named pipe open request */
207 open_req = dcerpc_pipe_open_smb2_send(s->io.pipe, s->tree, s->io.pipe_name);
208 if (composite_nomem(open_req, c)) return;
210 composite_continue(c, open_req, continue_pipe_open_smb2, c);
215 Initiate async open of a rpc connection request on SMB2 using
216 the binding structure to determine the endpoint and options
218 static struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(
220 struct dcerpc_pipe_connect *io,
221 struct loadparm_context *lp_ctx)
223 struct composite_context *c;
224 struct pipe_np_smb2_state *s;
225 struct tevent_req *subreq;
226 struct smbcli_options options;
228 /* composite context allocation and setup */
229 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
230 if (c == NULL) return NULL;
232 s = talloc_zero(c, struct pipe_np_smb2_state);
233 if (composite_nomem(s, c)) return c;
239 * provide proper credentials - user supplied or anonymous in case this is
240 * schannel connection
242 if (s->io.binding->flags & DCERPC_SCHANNEL) {
243 s->io.creds = cli_credentials_init(mem_ctx);
244 if (composite_nomem(s->io.creds, c)) return c;
246 cli_credentials_guess(s->io.creds, lp_ctx);
249 lpcfg_smbcli_options(lp_ctx, &options);
251 /* send smb2 connect request */
252 subreq = smb2_connect_send(s, c->event_ctx,
254 lpcfg_parm_string_list(mem_ctx, lp_ctx, NULL, "smb2", "ports", NULL),
258 0, /* previous_session_id */
260 lpcfg_socket_options(lp_ctx),
261 lpcfg_gensec_settings(mem_ctx, lp_ctx));
262 if (composite_nomem(subreq, c)) return c;
263 tevent_req_set_callback(subreq, continue_smb2_connect, c);
269 Receive result of a rpc connection to a rpc pipe on SMB2
271 static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context *c)
273 NTSTATUS status = composite_wait(c);
280 struct pipe_ip_tcp_state {
281 struct dcerpc_pipe_connect io;
282 const char *localaddr;
284 const char *target_hostname;
290 Stage 2 of ncacn_ip_tcp: rpc pipe opened (or not)
292 static void continue_pipe_open_ncacn_ip_tcp(struct composite_context *ctx)
294 struct composite_context *c = talloc_get_type(ctx->async.private_data,
295 struct composite_context);
297 /* receive result of named pipe open request on tcp/ip */
298 c->status = dcerpc_pipe_open_tcp_recv(ctx);
299 if (!composite_is_ok(c)) return;
306 Initiate async open of a rpc connection to a rpc pipe on TCP/IP using
307 the binding structure to determine the endpoint and options
309 static struct composite_context* dcerpc_pipe_connect_ncacn_ip_tcp_send(TALLOC_CTX *mem_ctx,
310 struct dcerpc_pipe_connect *io)
312 struct composite_context *c;
313 struct pipe_ip_tcp_state *s;
314 struct composite_context *pipe_req;
316 /* composite context allocation and setup */
317 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
318 if (c == NULL) return NULL;
320 s = talloc_zero(c, struct pipe_ip_tcp_state);
321 if (composite_nomem(s, c)) return c;
324 /* store input parameters in state structure */
326 s->localaddr = talloc_reference(c, io->binding->localaddress);
327 s->host = talloc_reference(c, io->binding->host);
328 s->target_hostname = talloc_reference(c, io->binding->target_hostname);
329 /* port number is a binding endpoint here */
330 s->port = atoi(io->binding->endpoint);
332 /* send pipe open request on tcp/ip */
333 pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->localaddr, s->host, s->target_hostname,
334 s->port, io->resolve_ctx);
335 composite_continue(c, pipe_req, continue_pipe_open_ncacn_ip_tcp, c);
341 Receive result of a rpc connection to a rpc pipe on TCP/IP
343 static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp_recv(struct composite_context *c)
345 NTSTATUS status = composite_wait(c);
352 struct pipe_unix_state {
353 struct dcerpc_pipe_connect io;
359 Stage 2 of ncacn_unix: rpc pipe opened (or not)
361 static void continue_pipe_open_ncacn_unix_stream(struct composite_context *ctx)
363 struct composite_context *c = talloc_get_type(ctx->async.private_data,
364 struct composite_context);
366 /* receive result of pipe open request on unix socket */
367 c->status = dcerpc_pipe_open_unix_stream_recv(ctx);
368 if (!composite_is_ok(c)) return;
375 Initiate async open of a rpc connection to a rpc pipe on unix socket using
376 the binding structure to determine the endpoint and options
378 static struct composite_context* dcerpc_pipe_connect_ncacn_unix_stream_send(TALLOC_CTX *mem_ctx,
379 struct dcerpc_pipe_connect *io)
381 struct composite_context *c;
382 struct pipe_unix_state *s;
383 struct composite_context *pipe_req;
385 /* composite context allocation and setup */
386 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
387 if (c == NULL) return NULL;
389 s = talloc_zero(c, struct pipe_unix_state);
390 if (composite_nomem(s, c)) return c;
393 /* prepare pipe open parameters and store them in state structure
394 also, verify whether biding endpoint is not null */
397 if (!io->binding->endpoint) {
398 DEBUG(0, ("Path to unix socket not specified\n"));
399 composite_error(c, NT_STATUS_INVALID_PARAMETER);
403 s->path = talloc_strdup(c, io->binding->endpoint); /* path is a binding endpoint here */
404 if (composite_nomem(s->path, c)) return c;
406 /* send pipe open request on unix socket */
407 pipe_req = dcerpc_pipe_open_unix_stream_send(s->io.pipe->conn, s->path);
408 composite_continue(c, pipe_req, continue_pipe_open_ncacn_unix_stream, c);
414 Receive result of a rpc connection to a pipe on unix socket
416 static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream_recv(struct composite_context *c)
418 NTSTATUS status = composite_wait(c);
425 struct pipe_ncalrpc_state {
426 struct dcerpc_pipe_connect io;
429 static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c);
432 Stage 2 of ncalrpc: rpc pipe opened (or not)
434 static void continue_pipe_open_ncalrpc(struct composite_context *ctx)
436 struct composite_context *c = talloc_get_type(ctx->async.private_data,
437 struct composite_context);
439 /* receive result of pipe open request on ncalrpc */
440 c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
441 if (!composite_is_ok(c)) return;
448 Initiate async open of a rpc connection request on NCALRPC using
449 the binding structure to determine the endpoint and options
451 static struct composite_context* dcerpc_pipe_connect_ncalrpc_send(TALLOC_CTX *mem_ctx,
452 struct dcerpc_pipe_connect *io, struct loadparm_context *lp_ctx)
454 struct composite_context *c;
455 struct pipe_ncalrpc_state *s;
456 struct composite_context *pipe_req;
458 /* composite context allocation and setup */
459 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
460 if (c == NULL) return NULL;
462 s = talloc_zero(c, struct pipe_ncalrpc_state);
463 if (composite_nomem(s, c)) return c;
466 /* store input parameters in state structure */
469 /* send pipe open request */
470 pipe_req = dcerpc_pipe_open_pipe_send(s->io.pipe->conn, lpcfg_ncalrpc_dir(lp_ctx),
471 s->io.binding->endpoint);
472 composite_continue(c, pipe_req, continue_pipe_open_ncalrpc, c);
478 Receive result of a rpc connection to a rpc pipe on NCALRPC
480 static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c)
482 NTSTATUS status = composite_wait(c);
489 struct pipe_connect_state {
490 struct dcerpc_pipe *pipe;
491 struct dcerpc_binding *binding;
492 const struct ndr_interface_table *table;
493 struct cli_credentials *credentials;
494 struct loadparm_context *lp_ctx;
498 static void continue_map_binding(struct composite_context *ctx);
499 static void continue_connect(struct composite_context *c, struct pipe_connect_state *s);
500 static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx);
501 static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx);
502 static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx);
503 static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx);
504 static void continue_pipe_connect_ncalrpc(struct composite_context *ctx);
505 static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s);
506 static void continue_pipe_auth(struct composite_context *ctx);
510 Stage 2 of pipe_connect_b: Receive result of endpoint mapping
512 static void continue_map_binding(struct composite_context *ctx)
514 struct composite_context *c = talloc_get_type(ctx->async.private_data,
515 struct composite_context);
516 struct pipe_connect_state *s = talloc_get_type(c->private_data,
517 struct pipe_connect_state);
519 c->status = dcerpc_epm_map_binding_recv(ctx);
520 if (!composite_is_ok(c)) return;
522 DEBUG(4,("Mapped to DCERPC endpoint %s\n", s->binding->endpoint));
524 continue_connect(c, s);
529 Stage 2 of pipe_connect_b: Continue connection after endpoint is known
531 static void continue_connect(struct composite_context *c, struct pipe_connect_state *s)
533 struct dcerpc_pipe_connect pc;
535 /* potential exits to another stage by sending an async request */
536 struct composite_context *ncacn_np_smb2_req;
537 struct composite_context *ncacn_np_smb_req;
538 struct composite_context *ncacn_ip_tcp_req;
539 struct composite_context *ncacn_unix_req;
540 struct composite_context *ncalrpc_req;
542 /* dcerpc pipe connect input parameters */
544 pc.binding = s->binding;
546 pc.interface = s->table;
547 pc.creds = s->credentials;
548 pc.resolve_ctx = lpcfg_resolve_context(s->lp_ctx);
550 /* connect dcerpc pipe depending on required transport */
551 switch (s->binding->transport) {
553 if (pc.binding->flags & DCERPC_SMB2) {
554 /* new varient of SMB a.k.a. SMB2 */
555 ncacn_np_smb2_req = dcerpc_pipe_connect_ncacn_np_smb2_send(c, &pc, s->lp_ctx);
556 composite_continue(c, ncacn_np_smb2_req, continue_pipe_connect_ncacn_np_smb2, c);
560 /* good old ordinary SMB */
561 ncacn_np_smb_req = dcerpc_pipe_connect_ncacn_np_smb_send(c, &pc, s->lp_ctx);
562 composite_continue(c, ncacn_np_smb_req, continue_pipe_connect_ncacn_np_smb, c);
568 ncacn_ip_tcp_req = dcerpc_pipe_connect_ncacn_ip_tcp_send(c, &pc);
569 composite_continue(c, ncacn_ip_tcp_req, continue_pipe_connect_ncacn_ip_tcp, c);
572 case NCACN_UNIX_STREAM:
573 ncacn_unix_req = dcerpc_pipe_connect_ncacn_unix_stream_send(c, &pc);
574 composite_continue(c, ncacn_unix_req, continue_pipe_connect_ncacn_unix, c);
578 ncalrpc_req = dcerpc_pipe_connect_ncalrpc_send(c, &pc, s->lp_ctx);
579 composite_continue(c, ncalrpc_req, continue_pipe_connect_ncalrpc, c);
583 /* looks like a transport we don't support now */
584 composite_error(c, NT_STATUS_NOT_SUPPORTED);
590 Stage 3 of pipe_connect_b: Receive result of pipe connect request on
593 static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx)
595 struct composite_context *c = talloc_get_type(ctx->async.private_data,
596 struct composite_context);
597 struct pipe_connect_state *s = talloc_get_type(c->private_data,
598 struct pipe_connect_state);
600 c->status = dcerpc_pipe_connect_ncacn_np_smb2_recv(ctx);
601 if (!composite_is_ok(c)) return;
603 continue_pipe_connect(c, s);
608 Stage 3 of pipe_connect_b: Receive result of pipe connect request on
611 static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx)
613 struct composite_context *c = talloc_get_type(ctx->async.private_data,
614 struct composite_context);
615 struct pipe_connect_state *s = talloc_get_type(c->private_data,
616 struct pipe_connect_state);
618 c->status = dcerpc_pipe_connect_ncacn_np_smb_recv(ctx);
619 if (!composite_is_ok(c)) return;
621 continue_pipe_connect(c, s);
626 Stage 3 of pipe_connect_b: Receive result of pipe connect request on tcp/ip
628 static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx)
630 struct composite_context *c = talloc_get_type(ctx->async.private_data,
631 struct composite_context);
632 struct pipe_connect_state *s = talloc_get_type(c->private_data,
633 struct pipe_connect_state);
635 c->status = dcerpc_pipe_connect_ncacn_ip_tcp_recv(ctx);
636 if (!composite_is_ok(c)) return;
638 continue_pipe_connect(c, s);
643 Stage 3 of pipe_connect_b: Receive result of pipe connect request on unix socket
645 static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx)
647 struct composite_context *c = talloc_get_type(ctx->async.private_data,
648 struct composite_context);
649 struct pipe_connect_state *s = talloc_get_type(c->private_data,
650 struct pipe_connect_state);
652 c->status = dcerpc_pipe_connect_ncacn_unix_stream_recv(ctx);
653 if (!composite_is_ok(c)) return;
655 continue_pipe_connect(c, s);
660 Stage 3 of pipe_connect_b: Receive result of pipe connect request on local rpc
662 static void continue_pipe_connect_ncalrpc(struct composite_context *ctx)
664 struct composite_context *c = talloc_get_type(ctx->async.private_data,
665 struct composite_context);
666 struct pipe_connect_state *s = talloc_get_type(c->private_data,
667 struct pipe_connect_state);
669 c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
670 if (!composite_is_ok(c)) return;
672 continue_pipe_connect(c, s);
677 Stage 4 of pipe_connect_b: Start an authentication on connected dcerpc pipe
678 depending on credentials and binding flags passed.
680 static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s)
682 struct composite_context *auth_bind_req;
684 s->pipe->binding = s->binding;
685 if (!talloc_reference(s->pipe, s->binding)) {
686 composite_error(c, NT_STATUS_NO_MEMORY);
690 auth_bind_req = dcerpc_pipe_auth_send(s->pipe, s->binding, s->table,
691 s->credentials, s->lp_ctx);
692 composite_continue(c, auth_bind_req, continue_pipe_auth, c);
697 Stage 5 of pipe_connect_b: Receive result of pipe authentication request
698 and say if all went ok
700 static void continue_pipe_auth(struct composite_context *ctx)
702 struct composite_context *c = talloc_get_type(ctx->async.private_data,
703 struct composite_context);
704 struct pipe_connect_state *s = talloc_get_type(c->private_data, struct pipe_connect_state);
706 c->status = dcerpc_pipe_auth_recv(ctx, s, &s->pipe);
707 if (!composite_is_ok(c)) return;
714 handle timeouts of a dcerpc connect
716 static void dcerpc_connect_timeout_handler(struct tevent_context *ev, struct tevent_timer *te,
717 struct timeval t, void *private_data)
719 struct composite_context *c = talloc_get_type(private_data, struct composite_context);
720 composite_error(c, NT_STATUS_IO_TIMEOUT);
724 start a request to open a rpc connection to a rpc pipe, using
725 specified binding structure to determine the endpoint and options
727 _PUBLIC_ struct composite_context* dcerpc_pipe_connect_b_send(TALLOC_CTX *parent_ctx,
728 struct dcerpc_binding *binding,
729 const struct ndr_interface_table *table,
730 struct cli_credentials *credentials,
731 struct tevent_context *ev,
732 struct loadparm_context *lp_ctx)
734 struct composite_context *c;
735 struct pipe_connect_state *s;
736 struct tevent_context *new_ev = NULL;
738 /* composite context allocation and setup */
739 c = composite_create(parent_ctx, ev);
744 talloc_steal(c, new_ev);
746 s = talloc_zero(c, struct pipe_connect_state);
747 if (composite_nomem(s, c)) return c;
750 /* initialise dcerpc pipe structure */
751 s->pipe = dcerpc_pipe_init(c, ev);
752 if (composite_nomem(s->pipe, c)) return c;
754 if (DEBUGLEVEL >= 10)
755 s->pipe->conn->packet_log_dir = lpcfg_lockdir(lp_ctx);
757 /* store parameters in state structure */
758 s->binding = binding;
760 s->credentials = credentials;
763 tevent_add_timer(c->event_ctx, c,
764 timeval_current_ofs(DCERPC_REQUEST_TIMEOUT, 0),
765 dcerpc_connect_timeout_handler, c);
767 switch (s->binding->transport) {
769 struct composite_context *binding_req;
770 binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
771 s->pipe->conn->event_ctx,
773 composite_continue(c, binding_req, continue_map_binding, c);
780 if (!s->binding->endpoint) {
781 struct composite_context *binding_req;
782 binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
783 s->pipe->conn->event_ctx,
785 composite_continue(c, binding_req, continue_map_binding, c);
793 continue_connect(c, s);
799 receive result of a request to open a rpc connection to a rpc pipe
801 _PUBLIC_ NTSTATUS dcerpc_pipe_connect_b_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
802 struct dcerpc_pipe **p)
805 struct pipe_connect_state *s;
807 status = composite_wait(c);
809 if (NT_STATUS_IS_OK(status)) {
810 s = talloc_get_type(c->private_data, struct pipe_connect_state);
811 talloc_steal(mem_ctx, s->pipe);
820 open a rpc connection to a rpc pipe, using the specified
821 binding structure to determine the endpoint and options - sync version
823 _PUBLIC_ NTSTATUS dcerpc_pipe_connect_b(TALLOC_CTX *parent_ctx,
824 struct dcerpc_pipe **pp,
825 struct dcerpc_binding *binding,
826 const struct ndr_interface_table *table,
827 struct cli_credentials *credentials,
828 struct tevent_context *ev,
829 struct loadparm_context *lp_ctx)
831 struct composite_context *c;
833 c = dcerpc_pipe_connect_b_send(parent_ctx, binding, table,
834 credentials, ev, lp_ctx);
835 return dcerpc_pipe_connect_b_recv(c, parent_ctx, pp);
839 struct pipe_conn_state {
840 struct dcerpc_pipe *pipe;
844 static void continue_pipe_connect_b(struct composite_context *ctx);
848 Initiate rpc connection to a rpc pipe, using the specified string
849 binding to determine the endpoint and options.
850 The string is to be parsed to a binding structure first.
852 _PUBLIC_ struct composite_context* dcerpc_pipe_connect_send(TALLOC_CTX *parent_ctx,
854 const struct ndr_interface_table *table,
855 struct cli_credentials *credentials,
856 struct tevent_context *ev, struct loadparm_context *lp_ctx)
858 struct composite_context *c;
859 struct pipe_conn_state *s;
860 struct dcerpc_binding *b;
861 struct composite_context *pipe_conn_req;
863 /* composite context allocation and setup */
864 c = composite_create(parent_ctx, ev);
869 s = talloc_zero(c, struct pipe_conn_state);
870 if (composite_nomem(s, c)) return c;
873 /* parse binding string to the structure */
874 c->status = dcerpc_parse_binding(c, binding, &b);
875 if (!NT_STATUS_IS_OK(c->status)) {
876 DEBUG(0, ("Failed to parse dcerpc binding '%s'\n", binding));
877 composite_error(c, c->status);
881 DEBUG(3, ("Using binding %s\n", dcerpc_binding_string(c, b)));
884 start connecting to a rpc pipe after binding structure
887 pipe_conn_req = dcerpc_pipe_connect_b_send(c, b, table,
888 credentials, ev, lp_ctx);
889 composite_continue(c, pipe_conn_req, continue_pipe_connect_b, c);
895 Stage 2 of pipe_connect: Receive result of actual pipe connect request
896 and say if we're done ok
898 static void continue_pipe_connect_b(struct composite_context *ctx)
900 struct composite_context *c = talloc_get_type(ctx->async.private_data,
901 struct composite_context);
902 struct pipe_conn_state *s = talloc_get_type(c->private_data,
903 struct pipe_conn_state);
905 c->status = dcerpc_pipe_connect_b_recv(ctx, c, &s->pipe);
906 talloc_steal(s, s->pipe);
907 if (!composite_is_ok(c)) return;
914 Receive result of pipe connect (using binding string) request
915 and return connected pipe structure.
917 NTSTATUS dcerpc_pipe_connect_recv(struct composite_context *c,
919 struct dcerpc_pipe **pp)
922 struct pipe_conn_state *s;
924 status = composite_wait(c);
925 if (NT_STATUS_IS_OK(status)) {
926 s = talloc_get_type(c->private_data, struct pipe_conn_state);
927 *pp = talloc_steal(mem_ctx, s->pipe);
935 Open a rpc connection to a rpc pipe, using the specified string
936 binding to determine the endpoint and options - sync version
938 _PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx,
939 struct dcerpc_pipe **pp,
941 const struct ndr_interface_table *table,
942 struct cli_credentials *credentials,
943 struct tevent_context *ev,
944 struct loadparm_context *lp_ctx)
946 struct composite_context *c;
947 c = dcerpc_pipe_connect_send(parent_ctx, binding,
948 table, credentials, ev, lp_ctx);
949 return dcerpc_pipe_connect_recv(c, parent_ctx, pp);