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 "libcli/smb/smbXcli_base.h"
33 #include "librpc/rpc/dcerpc.h"
34 #include "librpc/rpc/dcerpc_proto.h"
35 #include "auth/credentials/credentials.h"
36 #include "param/param.h"
37 #include "libcli/resolve/resolve.h"
39 struct dcerpc_pipe_connect {
40 struct dcerpc_pipe *pipe;
41 struct dcerpc_binding *binding;
42 const char *pipe_name;
43 const struct ndr_interface_table *interface;
44 struct cli_credentials *creds;
45 struct resolve_context *resolve_ctx;
48 struct pipe_np_smb_state {
49 struct smb_composite_connect conn;
50 struct dcerpc_pipe_connect io;
55 Stage 3 of ncacn_np_smb: Named pipe opened (or not)
57 static void continue_pipe_open_smb(struct composite_context *ctx)
59 struct composite_context *c = talloc_get_type(ctx->async.private_data,
60 struct composite_context);
62 /* receive result of named pipe open request on smb */
63 c->status = dcerpc_pipe_open_smb_recv(ctx);
64 if (!composite_is_ok(c)) return;
71 Stage 2 of ncacn_np_smb: Open a named pipe after successful smb connection
73 static void continue_smb_connect(struct composite_context *ctx)
75 struct composite_context *open_ctx;
76 struct composite_context *c = talloc_get_type(ctx->async.private_data,
77 struct composite_context);
78 struct pipe_np_smb_state *s = talloc_get_type(c->private_data,
79 struct pipe_np_smb_state);
80 struct smbcli_tree *t;
81 struct smbXcli_conn *conn;
82 struct smbXcli_session *session;
83 struct smbXcli_tcon *tcon;
84 uint32_t timeout_msec;
86 /* receive result of smb connect request */
87 c->status = smb_composite_connect_recv(ctx, s->io.pipe->conn);
88 if (!composite_is_ok(c)) return;
90 /* prepare named pipe open parameters */
91 s->io.pipe_name = s->io.binding->endpoint;
94 conn = t->session->transport->conn;
95 session = t->session->smbXcli;
97 smb1cli_tcon_set_id(tcon, t->tid);
98 timeout_msec = t->session->transport->options.request_timeout * 1000;
100 /* if we don't have a binding on this pipe yet, then create one */
101 if (s->io.pipe->binding == NULL) {
102 const char *r = smbXcli_conn_remote_name(conn);
104 SMB_ASSERT(r != NULL);
105 str = talloc_asprintf(s, "ncacn_np:%s", r);
106 if (composite_nomem(str, c)) return;
107 c->status = dcerpc_parse_binding(s->io.pipe, str,
108 &s->io.pipe->binding);
110 if (!composite_is_ok(c)) return;
113 /* send named pipe open request */
114 open_ctx = dcerpc_pipe_open_smb_send(s->io.pipe->conn,
118 if (composite_nomem(open_ctx, c)) return;
120 composite_continue(c, open_ctx, continue_pipe_open_smb, c);
125 Initiate async open of a rpc connection to a rpc pipe on SMB using
126 the binding structure to determine the endpoint and options
128 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)
130 struct composite_context *c;
131 struct pipe_np_smb_state *s;
132 struct composite_context *conn_req;
133 struct smb_composite_connect *conn;
135 /* composite context allocation and setup */
136 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
137 if (c == NULL) return NULL;
139 s = talloc_zero(c, struct pipe_np_smb_state);
140 if (composite_nomem(s, c)) return c;
146 /* prepare smb connection parameters: we're connecting to IPC$ share on
148 conn->in.dest_host = s->io.binding->host;
149 conn->in.dest_ports = lpcfg_smb_ports(lp_ctx);
150 if (s->io.binding->target_hostname == NULL)
151 conn->in.called_name = "*SMBSERVER"; /* FIXME: This is invalid */
153 conn->in.called_name = s->io.binding->target_hostname;
154 conn->in.socket_options = lpcfg_socket_options(lp_ctx);
155 conn->in.service = "IPC$";
156 conn->in.service_type = NULL;
157 conn->in.workgroup = lpcfg_workgroup(lp_ctx);
158 conn->in.gensec_settings = lpcfg_gensec_settings(conn, lp_ctx);
160 lpcfg_smbcli_options(lp_ctx, &conn->in.options);
161 lpcfg_smbcli_session_options(lp_ctx, &conn->in.session_options);
164 * provide proper credentials - user supplied, but allow a
165 * fallback to anonymous if this is an schannel connection
166 * (might be NT4 not allowing machine logins at session
167 * setup) or if asked to do so by the caller (perhaps a SAMR password change?)
169 s->conn.in.credentials = s->io.creds;
170 if (s->io.binding->flags & (DCERPC_SCHANNEL|DCERPC_ANON_FALLBACK)) {
171 conn->in.fallback_to_anonymous = true;
173 conn->in.fallback_to_anonymous = false;
176 /* send smb connect request */
177 conn_req = smb_composite_connect_send(conn, s->io.pipe->conn,
179 s->io.pipe->conn->event_ctx);
180 if (composite_nomem(conn_req, c)) return c;
182 composite_continue(c, conn_req, continue_smb_connect, c);
188 Receive result of a rpc connection to a rpc pipe on SMB
190 static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb_recv(struct composite_context *c)
192 NTSTATUS status = composite_wait(c);
199 struct pipe_np_smb2_state {
200 struct dcerpc_pipe_connect io;
205 Stage 3 of ncacn_np_smb: Named pipe opened (or not)
207 static void continue_pipe_open_smb2(struct composite_context *ctx)
209 struct composite_context *c = talloc_get_type(ctx->async.private_data,
210 struct composite_context);
212 /* receive result of named pipe open request on smb2 */
213 c->status = dcerpc_pipe_open_smb_recv(ctx);
214 if (!composite_is_ok(c)) return;
221 Stage 2 of ncacn_np_smb2: Open a named pipe after successful smb2 connection
223 static void continue_smb2_connect(struct tevent_req *subreq)
225 struct composite_context *open_req;
226 struct composite_context *c =
227 tevent_req_callback_data(subreq,
228 struct composite_context);
229 struct pipe_np_smb2_state *s = talloc_get_type(c->private_data,
230 struct pipe_np_smb2_state);
232 struct smbXcli_conn *conn;
233 struct smbXcli_session *session;
234 struct smbXcli_tcon *tcon;
235 uint32_t timeout_msec;
237 /* receive result of smb2 connect request */
238 c->status = smb2_connect_recv(subreq, s->io.pipe->conn, &t);
240 if (!composite_is_ok(c)) return;
242 /* prepare named pipe open parameters */
243 s->io.pipe_name = s->io.binding->endpoint;
245 conn = t->session->transport->conn;
246 session = t->session->smbXcli;
248 timeout_msec = t->session->transport->options.request_timeout * 1000;
250 /* if we don't have a binding on this pipe yet, then create one */
251 if (s->io.pipe->binding == NULL) {
252 const char *r = smbXcli_conn_remote_name(conn);
254 SMB_ASSERT(r != NULL);
255 str = talloc_asprintf(s, "ncacn_np:%s", r);
256 if (composite_nomem(str, c)) return;
257 c->status = dcerpc_parse_binding(s->io.pipe, str,
258 &s->io.pipe->binding);
260 if (!composite_is_ok(c)) return;
263 /* send named pipe open request */
264 open_req = dcerpc_pipe_open_smb_send(s->io.pipe->conn,
268 if (composite_nomem(open_req, c)) return;
270 composite_continue(c, open_req, continue_pipe_open_smb2, c);
275 Initiate async open of a rpc connection request on SMB2 using
276 the binding structure to determine the endpoint and options
278 static struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(
280 struct dcerpc_pipe_connect *io,
281 struct loadparm_context *lp_ctx)
283 struct composite_context *c;
284 struct pipe_np_smb2_state *s;
285 struct tevent_req *subreq;
286 struct smbcli_options options;
288 /* composite context allocation and setup */
289 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
290 if (c == NULL) return NULL;
292 s = talloc_zero(c, struct pipe_np_smb2_state);
293 if (composite_nomem(s, c)) return c;
299 * provide proper credentials - user supplied or anonymous in case this is
300 * schannel connection
302 if (s->io.binding->flags & DCERPC_SCHANNEL) {
303 s->io.creds = cli_credentials_init(mem_ctx);
304 if (composite_nomem(s->io.creds, c)) return c;
306 cli_credentials_guess(s->io.creds, lp_ctx);
309 lpcfg_smbcli_options(lp_ctx, &options);
311 /* send smb2 connect request */
312 subreq = smb2_connect_send(s, c->event_ctx,
314 lpcfg_parm_string_list(mem_ctx, lp_ctx, NULL, "smb2", "ports", NULL),
318 0, /* previous_session_id */
320 lpcfg_socket_options(lp_ctx),
321 lpcfg_gensec_settings(mem_ctx, lp_ctx));
322 if (composite_nomem(subreq, c)) return c;
323 tevent_req_set_callback(subreq, continue_smb2_connect, c);
329 Receive result of a rpc connection to a rpc pipe on SMB2
331 static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context *c)
333 NTSTATUS status = composite_wait(c);
340 struct pipe_ip_tcp_state {
341 struct dcerpc_pipe_connect io;
342 const char *localaddr;
344 const char *target_hostname;
350 Stage 2 of ncacn_ip_tcp: rpc pipe opened (or not)
352 static void continue_pipe_open_ncacn_ip_tcp(struct composite_context *ctx)
354 struct composite_context *c = talloc_get_type(ctx->async.private_data,
355 struct composite_context);
357 /* receive result of named pipe open request on tcp/ip */
358 c->status = dcerpc_pipe_open_tcp_recv(ctx);
359 if (!composite_is_ok(c)) return;
366 Initiate async open of a rpc connection to a rpc pipe on TCP/IP using
367 the binding structure to determine the endpoint and options
369 static struct composite_context* dcerpc_pipe_connect_ncacn_ip_tcp_send(TALLOC_CTX *mem_ctx,
370 struct dcerpc_pipe_connect *io)
372 struct composite_context *c;
373 struct pipe_ip_tcp_state *s;
374 struct composite_context *pipe_req;
376 /* composite context allocation and setup */
377 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
378 if (c == NULL) return NULL;
380 s = talloc_zero(c, struct pipe_ip_tcp_state);
381 if (composite_nomem(s, c)) return c;
384 /* store input parameters in state structure */
386 if (io->binding->localaddress != NULL) {
387 s->localaddr = talloc_strdup(s, io->binding->localaddress);
388 if (composite_nomem(s->localaddr, c)) return c;
390 if (io->binding->host != NULL) {
391 s->host = talloc_strdup(s, io->binding->host);
392 if (composite_nomem(s->host, c)) return c;
394 if (io->binding->target_hostname != NULL) {
395 s->target_hostname = talloc_strdup(s, io->binding->target_hostname);
396 if (composite_nomem(s->target_hostname, c)) return c;
398 /* port number is a binding endpoint here */
399 s->port = atoi(io->binding->endpoint);
401 /* send pipe open request on tcp/ip */
402 pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->localaddr, s->host, s->target_hostname,
403 s->port, io->resolve_ctx);
404 composite_continue(c, pipe_req, continue_pipe_open_ncacn_ip_tcp, c);
410 Receive result of a rpc connection to a rpc pipe on TCP/IP
412 static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp_recv(struct composite_context *c)
414 NTSTATUS status = composite_wait(c);
421 struct pipe_unix_state {
422 struct dcerpc_pipe_connect io;
428 Stage 2 of ncacn_unix: rpc pipe opened (or not)
430 static void continue_pipe_open_ncacn_unix_stream(struct composite_context *ctx)
432 struct composite_context *c = talloc_get_type(ctx->async.private_data,
433 struct composite_context);
435 /* receive result of pipe open request on unix socket */
436 c->status = dcerpc_pipe_open_unix_stream_recv(ctx);
437 if (!composite_is_ok(c)) return;
444 Initiate async open of a rpc connection to a rpc pipe on unix socket using
445 the binding structure to determine the endpoint and options
447 static struct composite_context* dcerpc_pipe_connect_ncacn_unix_stream_send(TALLOC_CTX *mem_ctx,
448 struct dcerpc_pipe_connect *io)
450 struct composite_context *c;
451 struct pipe_unix_state *s;
452 struct composite_context *pipe_req;
454 /* composite context allocation and setup */
455 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
456 if (c == NULL) return NULL;
458 s = talloc_zero(c, struct pipe_unix_state);
459 if (composite_nomem(s, c)) return c;
462 /* prepare pipe open parameters and store them in state structure
463 also, verify whether biding endpoint is not null */
466 if (!io->binding->endpoint) {
467 DEBUG(0, ("Path to unix socket not specified\n"));
468 composite_error(c, NT_STATUS_INVALID_PARAMETER);
472 s->path = talloc_strdup(c, io->binding->endpoint); /* path is a binding endpoint here */
473 if (composite_nomem(s->path, c)) return c;
475 /* send pipe open request on unix socket */
476 pipe_req = dcerpc_pipe_open_unix_stream_send(s->io.pipe->conn, s->path);
477 composite_continue(c, pipe_req, continue_pipe_open_ncacn_unix_stream, c);
483 Receive result of a rpc connection to a pipe on unix socket
485 static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream_recv(struct composite_context *c)
487 NTSTATUS status = composite_wait(c);
494 struct pipe_ncalrpc_state {
495 struct dcerpc_pipe_connect io;
498 static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c);
501 Stage 2 of ncalrpc: rpc pipe opened (or not)
503 static void continue_pipe_open_ncalrpc(struct composite_context *ctx)
505 struct composite_context *c = talloc_get_type(ctx->async.private_data,
506 struct composite_context);
508 /* receive result of pipe open request on ncalrpc */
509 c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
510 if (!composite_is_ok(c)) return;
517 Initiate async open of a rpc connection request on NCALRPC using
518 the binding structure to determine the endpoint and options
520 static struct composite_context* dcerpc_pipe_connect_ncalrpc_send(TALLOC_CTX *mem_ctx,
521 struct dcerpc_pipe_connect *io, struct loadparm_context *lp_ctx)
523 struct composite_context *c;
524 struct pipe_ncalrpc_state *s;
525 struct composite_context *pipe_req;
527 /* composite context allocation and setup */
528 c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
529 if (c == NULL) return NULL;
531 s = talloc_zero(c, struct pipe_ncalrpc_state);
532 if (composite_nomem(s, c)) return c;
535 /* store input parameters in state structure */
538 /* send pipe open request */
539 pipe_req = dcerpc_pipe_open_pipe_send(s->io.pipe->conn, lpcfg_ncalrpc_dir(lp_ctx),
540 s->io.binding->endpoint);
541 composite_continue(c, pipe_req, continue_pipe_open_ncalrpc, c);
547 Receive result of a rpc connection to a rpc pipe on NCALRPC
549 static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c)
551 NTSTATUS status = composite_wait(c);
558 struct pipe_connect_state {
559 struct dcerpc_pipe *pipe;
560 struct dcerpc_binding *binding;
561 const struct ndr_interface_table *table;
562 struct cli_credentials *credentials;
563 struct loadparm_context *lp_ctx;
567 static void continue_map_binding(struct composite_context *ctx);
568 static void continue_connect(struct composite_context *c, struct pipe_connect_state *s);
569 static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx);
570 static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx);
571 static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx);
572 static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx);
573 static void continue_pipe_connect_ncalrpc(struct composite_context *ctx);
574 static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s);
575 static void continue_pipe_auth(struct composite_context *ctx);
579 Stage 2 of pipe_connect_b: Receive result of endpoint mapping
581 static void continue_map_binding(struct composite_context *ctx)
583 struct composite_context *c = talloc_get_type(ctx->async.private_data,
584 struct composite_context);
585 struct pipe_connect_state *s = talloc_get_type(c->private_data,
586 struct pipe_connect_state);
588 c->status = dcerpc_epm_map_binding_recv(ctx);
589 if (!composite_is_ok(c)) return;
591 DEBUG(4,("Mapped to DCERPC endpoint %s\n", s->binding->endpoint));
593 continue_connect(c, s);
598 Stage 2 of pipe_connect_b: Continue connection after endpoint is known
600 static void continue_connect(struct composite_context *c, struct pipe_connect_state *s)
602 struct dcerpc_pipe_connect pc;
604 /* potential exits to another stage by sending an async request */
605 struct composite_context *ncacn_np_smb2_req;
606 struct composite_context *ncacn_np_smb_req;
607 struct composite_context *ncacn_ip_tcp_req;
608 struct composite_context *ncacn_unix_req;
609 struct composite_context *ncalrpc_req;
611 /* dcerpc pipe connect input parameters */
613 pc.binding = s->binding;
615 pc.interface = s->table;
616 pc.creds = s->credentials;
617 pc.resolve_ctx = lpcfg_resolve_context(s->lp_ctx);
619 /* connect dcerpc pipe depending on required transport */
620 switch (s->binding->transport) {
622 if (pc.binding->flags & DCERPC_SMB2) {
623 /* new varient of SMB a.k.a. SMB2 */
624 ncacn_np_smb2_req = dcerpc_pipe_connect_ncacn_np_smb2_send(c, &pc, s->lp_ctx);
625 composite_continue(c, ncacn_np_smb2_req, continue_pipe_connect_ncacn_np_smb2, c);
629 /* good old ordinary SMB */
630 ncacn_np_smb_req = dcerpc_pipe_connect_ncacn_np_smb_send(c, &pc, s->lp_ctx);
631 composite_continue(c, ncacn_np_smb_req, continue_pipe_connect_ncacn_np_smb, c);
637 ncacn_ip_tcp_req = dcerpc_pipe_connect_ncacn_ip_tcp_send(c, &pc);
638 composite_continue(c, ncacn_ip_tcp_req, continue_pipe_connect_ncacn_ip_tcp, c);
641 case NCACN_UNIX_STREAM:
642 ncacn_unix_req = dcerpc_pipe_connect_ncacn_unix_stream_send(c, &pc);
643 composite_continue(c, ncacn_unix_req, continue_pipe_connect_ncacn_unix, c);
647 ncalrpc_req = dcerpc_pipe_connect_ncalrpc_send(c, &pc, s->lp_ctx);
648 composite_continue(c, ncalrpc_req, continue_pipe_connect_ncalrpc, c);
652 /* looks like a transport we don't support now */
653 composite_error(c, NT_STATUS_NOT_SUPPORTED);
659 Stage 3 of pipe_connect_b: Receive result of pipe connect request on
662 static void continue_pipe_connect_ncacn_np_smb2(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_ncacn_np_smb2_recv(ctx);
670 if (!composite_is_ok(c)) return;
672 continue_pipe_connect(c, s);
677 Stage 3 of pipe_connect_b: Receive result of pipe connect request on
680 static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx)
682 struct composite_context *c = talloc_get_type(ctx->async.private_data,
683 struct composite_context);
684 struct pipe_connect_state *s = talloc_get_type(c->private_data,
685 struct pipe_connect_state);
687 c->status = dcerpc_pipe_connect_ncacn_np_smb_recv(ctx);
688 if (!composite_is_ok(c)) return;
690 continue_pipe_connect(c, s);
695 Stage 3 of pipe_connect_b: Receive result of pipe connect request on tcp/ip
697 static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx)
699 struct composite_context *c = talloc_get_type(ctx->async.private_data,
700 struct composite_context);
701 struct pipe_connect_state *s = talloc_get_type(c->private_data,
702 struct pipe_connect_state);
704 c->status = dcerpc_pipe_connect_ncacn_ip_tcp_recv(ctx);
705 if (!composite_is_ok(c)) return;
707 continue_pipe_connect(c, s);
712 Stage 3 of pipe_connect_b: Receive result of pipe connect request on unix socket
714 static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx)
716 struct composite_context *c = talloc_get_type(ctx->async.private_data,
717 struct composite_context);
718 struct pipe_connect_state *s = talloc_get_type(c->private_data,
719 struct pipe_connect_state);
721 c->status = dcerpc_pipe_connect_ncacn_unix_stream_recv(ctx);
722 if (!composite_is_ok(c)) return;
724 continue_pipe_connect(c, s);
729 Stage 3 of pipe_connect_b: Receive result of pipe connect request on local rpc
731 static void continue_pipe_connect_ncalrpc(struct composite_context *ctx)
733 struct composite_context *c = talloc_get_type(ctx->async.private_data,
734 struct composite_context);
735 struct pipe_connect_state *s = talloc_get_type(c->private_data,
736 struct pipe_connect_state);
738 c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
739 if (!composite_is_ok(c)) return;
741 continue_pipe_connect(c, s);
746 Stage 4 of pipe_connect_b: Start an authentication on connected dcerpc pipe
747 depending on credentials and binding flags passed.
749 static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s)
751 struct composite_context *auth_bind_req;
753 s->pipe->binding = dcerpc_binding_dup(s->pipe, s->binding);
754 if (composite_nomem(s->pipe->binding, c)) {
758 auth_bind_req = dcerpc_pipe_auth_send(s->pipe, s->binding, s->table,
759 s->credentials, s->lp_ctx);
760 composite_continue(c, auth_bind_req, continue_pipe_auth, c);
765 Stage 5 of pipe_connect_b: Receive result of pipe authentication request
766 and say if all went ok
768 static void continue_pipe_auth(struct composite_context *ctx)
770 struct composite_context *c = talloc_get_type(ctx->async.private_data,
771 struct composite_context);
772 struct pipe_connect_state *s = talloc_get_type(c->private_data, struct pipe_connect_state);
774 c->status = dcerpc_pipe_auth_recv(ctx, s, &s->pipe);
775 if (!composite_is_ok(c)) return;
782 handle timeouts of a dcerpc connect
784 static void dcerpc_connect_timeout_handler(struct tevent_context *ev, struct tevent_timer *te,
785 struct timeval t, void *private_data)
787 struct composite_context *c = talloc_get_type_abort(private_data,
788 struct composite_context);
789 struct pipe_connect_state *s = talloc_get_type_abort(c->private_data, struct pipe_connect_state);
790 if (!s->pipe->inhibit_timeout_processing) {
791 composite_error(c, NT_STATUS_IO_TIMEOUT);
793 s->pipe->timed_out = true;
798 start a request to open a rpc connection to a rpc pipe, using
799 specified binding structure to determine the endpoint and options
801 _PUBLIC_ struct composite_context* dcerpc_pipe_connect_b_send(TALLOC_CTX *parent_ctx,
802 struct dcerpc_binding *binding,
803 const struct ndr_interface_table *table,
804 struct cli_credentials *credentials,
805 struct tevent_context *ev,
806 struct loadparm_context *lp_ctx)
808 struct composite_context *c;
809 struct pipe_connect_state *s;
811 /* composite context allocation and setup */
812 c = composite_create(parent_ctx, ev);
817 s = talloc_zero(c, struct pipe_connect_state);
818 if (composite_nomem(s, c)) return c;
821 /* initialise dcerpc pipe structure */
822 s->pipe = dcerpc_pipe_init(c, ev);
823 if (composite_nomem(s->pipe, c)) return c;
825 if (DEBUGLEVEL >= 10)
826 s->pipe->conn->packet_log_dir = lpcfg_lock_directory(lp_ctx);
828 /* store parameters in state structure */
829 s->binding = binding;
831 s->credentials = credentials;
834 s->pipe->timed_out = false;
835 s->pipe->inhibit_timeout_processing = false;
837 tevent_add_timer(c->event_ctx, c,
838 timeval_current_ofs(DCERPC_REQUEST_TIMEOUT, 0),
839 dcerpc_connect_timeout_handler, c);
841 switch (s->binding->transport) {
843 struct composite_context *binding_req;
844 binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
845 s->pipe->conn->event_ctx,
847 composite_continue(c, binding_req, continue_map_binding, c);
854 if (!s->binding->endpoint) {
855 struct composite_context *binding_req;
856 binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
857 s->pipe->conn->event_ctx,
859 composite_continue(c, binding_req, continue_map_binding, c);
867 continue_connect(c, s);
873 receive result of a request to open a rpc connection to a rpc pipe
875 _PUBLIC_ NTSTATUS dcerpc_pipe_connect_b_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
876 struct dcerpc_pipe **p)
879 struct pipe_connect_state *s;
881 status = composite_wait(c);
883 if (NT_STATUS_IS_OK(status)) {
884 s = talloc_get_type(c->private_data, struct pipe_connect_state);
885 talloc_steal(mem_ctx, s->pipe);
894 open a rpc connection to a rpc pipe, using the specified
895 binding structure to determine the endpoint and options - sync version
897 _PUBLIC_ NTSTATUS dcerpc_pipe_connect_b(TALLOC_CTX *parent_ctx,
898 struct dcerpc_pipe **pp,
899 struct dcerpc_binding *binding,
900 const struct ndr_interface_table *table,
901 struct cli_credentials *credentials,
902 struct tevent_context *ev,
903 struct loadparm_context *lp_ctx)
905 struct composite_context *c;
907 c = dcerpc_pipe_connect_b_send(parent_ctx, binding, table,
908 credentials, ev, lp_ctx);
909 return dcerpc_pipe_connect_b_recv(c, parent_ctx, pp);
913 struct pipe_conn_state {
914 struct dcerpc_pipe *pipe;
918 static void continue_pipe_connect_b(struct composite_context *ctx);
922 Initiate rpc connection to a rpc pipe, using the specified string
923 binding to determine the endpoint and options.
924 The string is to be parsed to a binding structure first.
926 _PUBLIC_ struct composite_context* dcerpc_pipe_connect_send(TALLOC_CTX *parent_ctx,
928 const struct ndr_interface_table *table,
929 struct cli_credentials *credentials,
930 struct tevent_context *ev, struct loadparm_context *lp_ctx)
932 struct composite_context *c;
933 struct pipe_conn_state *s;
934 struct dcerpc_binding *b;
935 struct composite_context *pipe_conn_req;
937 /* composite context allocation and setup */
938 c = composite_create(parent_ctx, ev);
943 s = talloc_zero(c, struct pipe_conn_state);
944 if (composite_nomem(s, c)) return c;
947 /* parse binding string to the structure */
948 c->status = dcerpc_parse_binding(c, binding, &b);
949 if (!NT_STATUS_IS_OK(c->status)) {
950 DEBUG(0, ("Failed to parse dcerpc binding '%s'\n", binding));
951 composite_error(c, c->status);
955 DEBUG(3, ("Using binding %s\n", dcerpc_binding_string(c, b)));
958 start connecting to a rpc pipe after binding structure
961 pipe_conn_req = dcerpc_pipe_connect_b_send(c, b, table,
962 credentials, ev, lp_ctx);
963 composite_continue(c, pipe_conn_req, continue_pipe_connect_b, c);
969 Stage 2 of pipe_connect: Receive result of actual pipe connect request
970 and say if we're done ok
972 static void continue_pipe_connect_b(struct composite_context *ctx)
974 struct composite_context *c = talloc_get_type(ctx->async.private_data,
975 struct composite_context);
976 struct pipe_conn_state *s = talloc_get_type(c->private_data,
977 struct pipe_conn_state);
979 c->status = dcerpc_pipe_connect_b_recv(ctx, c, &s->pipe);
980 talloc_steal(s, s->pipe);
981 if (!composite_is_ok(c)) return;
988 Receive result of pipe connect (using binding string) request
989 and return connected pipe structure.
991 NTSTATUS dcerpc_pipe_connect_recv(struct composite_context *c,
993 struct dcerpc_pipe **pp)
996 struct pipe_conn_state *s;
998 status = composite_wait(c);
999 if (NT_STATUS_IS_OK(status)) {
1000 s = talloc_get_type(c->private_data, struct pipe_conn_state);
1001 *pp = talloc_steal(mem_ctx, s->pipe);
1009 Open a rpc connection to a rpc pipe, using the specified string
1010 binding to determine the endpoint and options - sync version
1012 _PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx,
1013 struct dcerpc_pipe **pp,
1014 const char *binding,
1015 const struct ndr_interface_table *table,
1016 struct cli_credentials *credentials,
1017 struct tevent_context *ev,
1018 struct loadparm_context *lp_ctx)
1020 struct composite_context *c;
1021 c = dcerpc_pipe_connect_send(parent_ctx, binding,
1022 table, credentials, ev, lp_ctx);
1023 return dcerpc_pipe_connect_recv(c, parent_ctx, pp);