2
Unix SMB/CIFS implementation.
4
dcerpc connect functions
6
Copyright (C) Andrew Tridgell 2003
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Copyright (C) Jelmer Vernooij 2004
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
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Copyright (C) Rafal Szczesniak 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "libcli/composite/composite.h"
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#include "libcli/smb_composite/smb_composite.h"
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#include "lib/events/events.h"
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#include "libcli/smb2/smb2.h"
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#include "libcli/smb2/smb2_calls.h"
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#include "librpc/rpc/dcerpc.h"
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#include "librpc/rpc/dcerpc_proto.h"
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#include "auth/credentials/credentials.h"
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#include "param/param.h"
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#include "libcli/resolve/resolve.h"
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struct pipe_np_smb_state {
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struct smb_composite_connect conn;
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struct smbcli_tree *tree;
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struct dcerpc_pipe_connect io;
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Stage 3 of ncacn_np_smb: Named pipe opened (or not)
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static void continue_pipe_open_smb(struct composite_context *ctx)
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struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
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/* receive result of named pipe open request on smb */
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c->status = dcerpc_pipe_open_smb_recv(ctx);
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if (!composite_is_ok(c)) return;
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Stage 2 of ncacn_np_smb: Open a named pipe after successful smb connection
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static void continue_smb_connect(struct composite_context *ctx)
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struct composite_context *open_ctx;
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struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
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struct pipe_np_smb_state *s = talloc_get_type(c->private_data,
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struct pipe_np_smb_state);
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/* receive result of smb connect request */
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c->status = smb_composite_connect_recv(ctx, c);
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if (!composite_is_ok(c)) return;
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/* prepare named pipe open parameters */
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s->tree = s->conn.out.tree;
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s->io.pipe_name = s->io.binding->endpoint;
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/* send named pipe open request */
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open_ctx = dcerpc_pipe_open_smb_send(s->io.pipe, s->tree, s->io.pipe_name);
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if (composite_nomem(open_ctx, c)) return;
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composite_continue(c, open_ctx, continue_pipe_open_smb, c);
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Initiate async open of a rpc connection to a rpc pipe on SMB using
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the binding structure to determine the endpoint and options
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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)
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struct composite_context *c;
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struct pipe_np_smb_state *s;
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struct composite_context *conn_req;
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struct smb_composite_connect *conn;
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/* composite context allocation and setup */
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c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
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if (c == NULL) return NULL;
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s = talloc_zero(c, struct pipe_np_smb_state);
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if (composite_nomem(s, c)) return c;
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/* prepare smb connection parameters: we're connecting to IPC$ share on
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conn->in.dest_host = s->io.binding->host;
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conn->in.dest_ports = lp_smb_ports(lp_ctx);
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if (s->io.binding->target_hostname == NULL)
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conn->in.called_name = "*SMBSERVER"; /* FIXME: This is invalid */
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conn->in.called_name = s->io.binding->target_hostname;
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conn->in.socket_options = lp_socket_options(lp_ctx);
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conn->in.service = "IPC$";
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conn->in.service_type = NULL;
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conn->in.workgroup = lp_workgroup(lp_ctx);
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conn->in.gensec_settings = lp_gensec_settings(conn, lp_ctx);
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conn->in.iconv_convenience = lp_iconv_convenience(lp_ctx);
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lp_smbcli_options(lp_ctx, &conn->in.options);
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lp_smbcli_session_options(lp_ctx, &conn->in.session_options);
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* provide proper credentials - user supplied, but allow a
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* fallback to anonymous if this is an schannel connection
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* (might be NT4 not allowing machine logins at session
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s->conn.in.credentials = s->io.creds;
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if (s->io.binding->flags & DCERPC_SCHANNEL) {
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conn->in.fallback_to_anonymous = true;
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conn->in.fallback_to_anonymous = false;
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/* send smb connect request */
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conn_req = smb_composite_connect_send(conn, s->io.pipe->conn,
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s->io.pipe->conn->event_ctx);
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if (composite_nomem(conn_req, c)) return c;
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composite_continue(c, conn_req, continue_smb_connect, c);
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Receive result of a rpc connection to a rpc pipe on SMB
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static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb_recv(struct composite_context *c)
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NTSTATUS status = composite_wait(c);
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struct pipe_np_smb2_state {
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struct smb2_tree *tree;
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struct dcerpc_pipe_connect io;
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Stage 3 of ncacn_np_smb: Named pipe opened (or not)
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static void continue_pipe_open_smb2(struct composite_context *ctx)
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struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
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/* receive result of named pipe open request on smb2 */
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c->status = dcerpc_pipe_open_smb2_recv(ctx);
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if (!composite_is_ok(c)) return;
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Stage 2 of ncacn_np_smb2: Open a named pipe after successful smb2 connection
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static void continue_smb2_connect(struct composite_context *ctx)
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struct composite_context *open_req;
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struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
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struct pipe_np_smb2_state *s = talloc_get_type(c->private_data,
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struct pipe_np_smb2_state);
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/* receive result of smb2 connect request */
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c->status = smb2_connect_recv(ctx, c, &s->tree);
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if (!composite_is_ok(c)) return;
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/* prepare named pipe open parameters */
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s->io.pipe_name = s->io.binding->endpoint;
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/* send named pipe open request */
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open_req = dcerpc_pipe_open_smb2_send(s->io.pipe, s->tree, s->io.pipe_name);
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if (composite_nomem(open_req, c)) return;
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composite_continue(c, open_req, continue_pipe_open_smb2, c);
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Initiate async open of a rpc connection request on SMB2 using
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the binding structure to determine the endpoint and options
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static struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(
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struct dcerpc_pipe_connect *io,
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struct loadparm_context *lp_ctx)
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struct composite_context *c;
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struct pipe_np_smb2_state *s;
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struct composite_context *conn_req;
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struct smbcli_options options;
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/* composite context allocation and setup */
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c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
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if (c == NULL) return NULL;
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s = talloc_zero(c, struct pipe_np_smb2_state);
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if (composite_nomem(s, c)) return c;
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* provide proper credentials - user supplied or anonymous in case this is
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* schannel connection
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if (s->io.binding->flags & DCERPC_SCHANNEL) {
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s->io.creds = cli_credentials_init(mem_ctx);
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if (composite_nomem(s->io.creds, c)) return c;
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cli_credentials_guess(s->io.creds, lp_ctx);
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lp_smbcli_options(lp_ctx, &options);
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/* send smb2 connect request */
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conn_req = smb2_connect_send(mem_ctx, s->io.binding->host,
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lp_parm_string_list(mem_ctx, lp_ctx, NULL, "smb2", "ports", NULL),
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lp_socket_options(lp_ctx),
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lp_gensec_settings(mem_ctx, lp_ctx)
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composite_continue(c, conn_req, continue_smb2_connect, c);
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Receive result of a rpc connection to a rpc pipe on SMB2
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static NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context *c)
271
NTSTATUS status = composite_wait(c);
278
struct pipe_ip_tcp_state {
279
struct dcerpc_pipe_connect io;
281
const char *target_hostname;
287
Stage 2 of ncacn_ip_tcp: rpc pipe opened (or not)
289
static void continue_pipe_open_ncacn_ip_tcp(struct composite_context *ctx)
291
struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
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/* receive result of named pipe open request on tcp/ip */
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c->status = dcerpc_pipe_open_tcp_recv(ctx);
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if (!composite_is_ok(c)) return;
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Initiate async open of a rpc connection to a rpc pipe on TCP/IP using
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the binding structure to determine the endpoint and options
306
static struct composite_context* dcerpc_pipe_connect_ncacn_ip_tcp_send(TALLOC_CTX *mem_ctx,
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struct dcerpc_pipe_connect *io)
309
struct composite_context *c;
310
struct pipe_ip_tcp_state *s;
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struct composite_context *pipe_req;
313
/* composite context allocation and setup */
314
c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
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if (c == NULL) return NULL;
317
s = talloc_zero(c, struct pipe_ip_tcp_state);
318
if (composite_nomem(s, c)) return c;
321
/* store input parameters in state structure */
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s->host = talloc_reference(c, io->binding->host);
324
s->target_hostname = talloc_reference(c, io->binding->target_hostname);
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/* port number is a binding endpoint here */
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s->port = atoi(io->binding->endpoint);
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/* send pipe open request on tcp/ip */
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pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->host, s->target_hostname,
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s->port, io->resolve_ctx);
331
composite_continue(c, pipe_req, continue_pipe_open_ncacn_ip_tcp, c);
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Receive result of a rpc connection to a rpc pipe on TCP/IP
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static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp_recv(struct composite_context *c)
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NTSTATUS status = composite_wait(c);
348
struct pipe_unix_state {
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struct dcerpc_pipe_connect io;
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Stage 2 of ncacn_unix: rpc pipe opened (or not)
357
static void continue_pipe_open_ncacn_unix_stream(struct composite_context *ctx)
359
struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
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/* receive result of pipe open request on unix socket */
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c->status = dcerpc_pipe_open_unix_stream_recv(ctx);
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if (!composite_is_ok(c)) return;
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Initiate async open of a rpc connection to a rpc pipe on unix socket using
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the binding structure to determine the endpoint and options
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static struct composite_context* dcerpc_pipe_connect_ncacn_unix_stream_send(TALLOC_CTX *mem_ctx,
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struct dcerpc_pipe_connect *io)
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struct composite_context *c;
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struct pipe_unix_state *s;
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struct composite_context *pipe_req;
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/* composite context allocation and setup */
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c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
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if (c == NULL) return NULL;
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s = talloc_zero(c, struct pipe_unix_state);
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if (composite_nomem(s, c)) return c;
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/* prepare pipe open parameters and store them in state structure
390
also, verify whether biding endpoint is not null */
393
if (!io->binding->endpoint) {
394
DEBUG(0, ("Path to unix socket not specified\n"));
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composite_error(c, NT_STATUS_INVALID_PARAMETER);
399
s->path = talloc_strdup(c, io->binding->endpoint); /* path is a binding endpoint here */
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if (composite_nomem(s->path, c)) return c;
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/* send pipe open request on unix socket */
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pipe_req = dcerpc_pipe_open_unix_stream_send(s->io.pipe->conn, s->path);
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composite_continue(c, pipe_req, continue_pipe_open_ncacn_unix_stream, c);
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Receive result of a rpc connection to a pipe on unix socket
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static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream_recv(struct composite_context *c)
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NTSTATUS status = composite_wait(c);
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struct pipe_ncalrpc_state {
422
struct dcerpc_pipe_connect io;
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static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c);
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Stage 2 of ncalrpc: rpc pipe opened (or not)
430
static void continue_pipe_open_ncalrpc(struct composite_context *ctx)
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struct composite_context *c = talloc_get_type(ctx->async.private_data,
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struct composite_context);
435
/* receive result of pipe open request on ncalrpc */
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c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
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if (!composite_is_ok(c)) return;
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Initiate async open of a rpc connection request on NCALRPC using
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the binding structure to determine the endpoint and options
447
static struct composite_context* dcerpc_pipe_connect_ncalrpc_send(TALLOC_CTX *mem_ctx,
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struct dcerpc_pipe_connect *io, struct loadparm_context *lp_ctx)
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struct composite_context *c;
451
struct pipe_ncalrpc_state *s;
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struct composite_context *pipe_req;
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/* composite context allocation and setup */
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c = composite_create(mem_ctx, io->pipe->conn->event_ctx);
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if (c == NULL) return NULL;
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s = talloc_zero(c, struct pipe_ncalrpc_state);
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if (composite_nomem(s, c)) return c;
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/* store input parameters in state structure */
465
/* send pipe open request */
466
pipe_req = dcerpc_pipe_open_pipe_send(s->io.pipe->conn, lp_ncalrpc_dir(lp_ctx),
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s->io.binding->endpoint);
468
composite_continue(c, pipe_req, continue_pipe_open_ncalrpc, c);
474
Receive result of a rpc connection to a rpc pipe on NCALRPC
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static NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c)
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NTSTATUS status = composite_wait(c);
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struct pipe_connect_state {
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struct dcerpc_pipe *pipe;
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struct dcerpc_binding *binding;
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const struct ndr_interface_table *table;
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struct cli_credentials *credentials;
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struct loadparm_context *lp_ctx;
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static void continue_map_binding(struct composite_context *ctx);
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static void continue_connect(struct composite_context *c, struct pipe_connect_state *s);
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static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx);
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static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx);
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static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx);
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static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx);
500
static void continue_pipe_connect_ncalrpc(struct composite_context *ctx);
501
static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s);
502
static void continue_pipe_auth(struct composite_context *ctx);
506
Stage 2 of pipe_connect_b: Receive result of endpoint mapping
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static void continue_map_binding(struct composite_context *ctx)
510
struct composite_context *c = talloc_get_type(ctx->async.private_data,
511
struct composite_context);
512
struct pipe_connect_state *s = talloc_get_type(c->private_data,
513
struct pipe_connect_state);
515
c->status = dcerpc_epm_map_binding_recv(ctx);
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if (!composite_is_ok(c)) return;
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DEBUG(2,("Mapped to DCERPC endpoint %s\n", s->binding->endpoint));
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continue_connect(c, s);
525
Stage 2 of pipe_connect_b: Continue connection after endpoint is known
527
static void continue_connect(struct composite_context *c, struct pipe_connect_state *s)
529
struct dcerpc_pipe_connect pc;
531
/* potential exits to another stage by sending an async request */
532
struct composite_context *ncacn_np_smb2_req;
533
struct composite_context *ncacn_np_smb_req;
534
struct composite_context *ncacn_ip_tcp_req;
535
struct composite_context *ncacn_unix_req;
536
struct composite_context *ncalrpc_req;
538
/* dcerpc pipe connect input parameters */
540
pc.binding = s->binding;
541
pc.interface = s->table;
542
pc.creds = s->credentials;
543
pc.resolve_ctx = lp_resolve_context(s->lp_ctx);
545
/* connect dcerpc pipe depending on required transport */
546
switch (s->binding->transport) {
548
if (pc.binding->flags & DCERPC_SMB2) {
549
/* new varient of SMB a.k.a. SMB2 */
550
ncacn_np_smb2_req = dcerpc_pipe_connect_ncacn_np_smb2_send(c, &pc, s->lp_ctx);
551
composite_continue(c, ncacn_np_smb2_req, continue_pipe_connect_ncacn_np_smb2, c);
555
/* good old ordinary SMB */
556
ncacn_np_smb_req = dcerpc_pipe_connect_ncacn_np_smb_send(c, &pc, s->lp_ctx);
557
composite_continue(c, ncacn_np_smb_req, continue_pipe_connect_ncacn_np_smb, c);
563
ncacn_ip_tcp_req = dcerpc_pipe_connect_ncacn_ip_tcp_send(c, &pc);
564
composite_continue(c, ncacn_ip_tcp_req, continue_pipe_connect_ncacn_ip_tcp, c);
567
case NCACN_UNIX_STREAM:
568
ncacn_unix_req = dcerpc_pipe_connect_ncacn_unix_stream_send(c, &pc);
569
composite_continue(c, ncacn_unix_req, continue_pipe_connect_ncacn_unix, c);
573
ncalrpc_req = dcerpc_pipe_connect_ncalrpc_send(c, &pc, s->lp_ctx);
574
composite_continue(c, ncalrpc_req, continue_pipe_connect_ncalrpc, c);
578
/* looks like a transport we don't support now */
579
composite_error(c, NT_STATUS_NOT_SUPPORTED);
585
Stage 3 of pipe_connect_b: Receive result of pipe connect request on
588
static void continue_pipe_connect_ncacn_np_smb2(struct composite_context *ctx)
590
struct composite_context *c = talloc_get_type(ctx->async.private_data,
591
struct composite_context);
592
struct pipe_connect_state *s = talloc_get_type(c->private_data,
593
struct pipe_connect_state);
595
c->status = dcerpc_pipe_connect_ncacn_np_smb2_recv(ctx);
596
if (!composite_is_ok(c)) return;
598
continue_pipe_connect(c, s);
603
Stage 3 of pipe_connect_b: Receive result of pipe connect request on
606
static void continue_pipe_connect_ncacn_np_smb(struct composite_context *ctx)
608
struct composite_context *c = talloc_get_type(ctx->async.private_data,
609
struct composite_context);
610
struct pipe_connect_state *s = talloc_get_type(c->private_data,
611
struct pipe_connect_state);
613
c->status = dcerpc_pipe_connect_ncacn_np_smb_recv(ctx);
614
if (!composite_is_ok(c)) return;
616
continue_pipe_connect(c, s);
621
Stage 3 of pipe_connect_b: Receive result of pipe connect request on tcp/ip
623
static void continue_pipe_connect_ncacn_ip_tcp(struct composite_context *ctx)
625
struct composite_context *c = talloc_get_type(ctx->async.private_data,
626
struct composite_context);
627
struct pipe_connect_state *s = talloc_get_type(c->private_data,
628
struct pipe_connect_state);
630
c->status = dcerpc_pipe_connect_ncacn_ip_tcp_recv(ctx);
631
if (!composite_is_ok(c)) return;
633
continue_pipe_connect(c, s);
638
Stage 3 of pipe_connect_b: Receive result of pipe connect request on unix socket
640
static void continue_pipe_connect_ncacn_unix(struct composite_context *ctx)
642
struct composite_context *c = talloc_get_type(ctx->async.private_data,
643
struct composite_context);
644
struct pipe_connect_state *s = talloc_get_type(c->private_data,
645
struct pipe_connect_state);
647
c->status = dcerpc_pipe_connect_ncacn_unix_stream_recv(ctx);
648
if (!composite_is_ok(c)) return;
650
continue_pipe_connect(c, s);
655
Stage 3 of pipe_connect_b: Receive result of pipe connect request on local rpc
657
static void continue_pipe_connect_ncalrpc(struct composite_context *ctx)
659
struct composite_context *c = talloc_get_type(ctx->async.private_data,
660
struct composite_context);
661
struct pipe_connect_state *s = talloc_get_type(c->private_data,
662
struct pipe_connect_state);
664
c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
665
if (!composite_is_ok(c)) return;
667
continue_pipe_connect(c, s);
672
Stage 4 of pipe_connect_b: Start an authentication on connected dcerpc pipe
673
depending on credentials and binding flags passed.
675
static void continue_pipe_connect(struct composite_context *c, struct pipe_connect_state *s)
677
struct composite_context *auth_bind_req;
679
s->pipe->binding = s->binding;
680
if (!talloc_reference(s->pipe, s->binding)) {
681
composite_error(c, NT_STATUS_NO_MEMORY);
685
auth_bind_req = dcerpc_pipe_auth_send(s->pipe, s->binding, s->table,
686
s->credentials, s->lp_ctx);
687
composite_continue(c, auth_bind_req, continue_pipe_auth, c);
692
Stage 5 of pipe_connect_b: Receive result of pipe authentication request
693
and say if all went ok
695
static void continue_pipe_auth(struct composite_context *ctx)
697
struct composite_context *c = talloc_get_type(ctx->async.private_data,
698
struct composite_context);
699
struct pipe_connect_state *s = talloc_get_type(c->private_data, struct pipe_connect_state);
701
c->status = dcerpc_pipe_auth_recv(ctx, s, &s->pipe);
702
if (!composite_is_ok(c)) return;
709
handle timeouts of a dcerpc connect
711
static void dcerpc_connect_timeout_handler(struct tevent_context *ev, struct tevent_timer *te,
712
struct timeval t, void *private_data)
714
struct composite_context *c = talloc_get_type(private_data, struct composite_context);
715
composite_error(c, NT_STATUS_IO_TIMEOUT);
719
start a request to open a rpc connection to a rpc pipe, using
720
specified binding structure to determine the endpoint and options
722
_PUBLIC_ struct composite_context* dcerpc_pipe_connect_b_send(TALLOC_CTX *parent_ctx,
723
struct dcerpc_binding *binding,
724
const struct ndr_interface_table *table,
725
struct cli_credentials *credentials,
726
struct tevent_context *ev,
727
struct loadparm_context *lp_ctx)
729
struct composite_context *c;
730
struct pipe_connect_state *s;
731
struct tevent_context *new_ev = NULL;
733
/* composite context allocation and setup */
734
c = composite_create(parent_ctx, ev);
739
talloc_steal(c, new_ev);
741
s = talloc_zero(c, struct pipe_connect_state);
742
if (composite_nomem(s, c)) return c;
745
/* initialise dcerpc pipe structure */
746
s->pipe = dcerpc_pipe_init(c, ev, lp_iconv_convenience(lp_ctx));
747
if (composite_nomem(s->pipe, c)) return c;
749
if (DEBUGLEVEL >= 10)
750
s->pipe->conn->packet_log_dir = lp_lockdir(lp_ctx);
752
/* store parameters in state structure */
753
s->binding = binding;
755
s->credentials = credentials;
758
event_add_timed(c->event_ctx, c,
759
timeval_current_ofs(DCERPC_REQUEST_TIMEOUT, 0),
760
dcerpc_connect_timeout_handler, c);
762
switch (s->binding->transport) {
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);
775
if (!s->binding->endpoint) {
776
struct composite_context *binding_req;
777
binding_req = dcerpc_epm_map_binding_send(c, s->binding, s->table,
778
s->pipe->conn->event_ctx,
780
composite_continue(c, binding_req, continue_map_binding, c);
788
continue_connect(c, s);
794
receive result of a request to open a rpc connection to a rpc pipe
796
_PUBLIC_ NTSTATUS dcerpc_pipe_connect_b_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
797
struct dcerpc_pipe **p)
800
struct pipe_connect_state *s;
802
status = composite_wait(c);
804
if (NT_STATUS_IS_OK(status)) {
805
s = talloc_get_type(c->private_data, struct pipe_connect_state);
806
talloc_steal(mem_ctx, s->pipe);
815
open a rpc connection to a rpc pipe, using the specified
816
binding structure to determine the endpoint and options - sync version
818
_PUBLIC_ NTSTATUS dcerpc_pipe_connect_b(TALLOC_CTX *parent_ctx,
819
struct dcerpc_pipe **pp,
820
struct dcerpc_binding *binding,
821
const struct ndr_interface_table *table,
822
struct cli_credentials *credentials,
823
struct tevent_context *ev,
824
struct loadparm_context *lp_ctx)
826
struct composite_context *c;
828
c = dcerpc_pipe_connect_b_send(parent_ctx, binding, table,
829
credentials, ev, lp_ctx);
830
return dcerpc_pipe_connect_b_recv(c, parent_ctx, pp);
834
struct pipe_conn_state {
835
struct dcerpc_pipe *pipe;
839
static void continue_pipe_connect_b(struct composite_context *ctx);
843
Initiate rpc connection to a rpc pipe, using the specified string
844
binding to determine the endpoint and options.
845
The string is to be parsed to a binding structure first.
847
_PUBLIC_ struct composite_context* dcerpc_pipe_connect_send(TALLOC_CTX *parent_ctx,
849
const struct ndr_interface_table *table,
850
struct cli_credentials *credentials,
851
struct tevent_context *ev, struct loadparm_context *lp_ctx)
853
struct composite_context *c;
854
struct pipe_conn_state *s;
855
struct dcerpc_binding *b;
856
struct composite_context *pipe_conn_req;
858
/* composite context allocation and setup */
859
c = composite_create(parent_ctx, ev);
864
s = talloc_zero(c, struct pipe_conn_state);
865
if (composite_nomem(s, c)) return c;
868
/* parse binding string to the structure */
869
c->status = dcerpc_parse_binding(c, binding, &b);
870
if (!NT_STATUS_IS_OK(c->status)) {
871
DEBUG(0, ("Failed to parse dcerpc binding '%s'\n", binding));
872
composite_error(c, c->status);
876
DEBUG(3, ("Using binding %s\n", dcerpc_binding_string(c, b)));
879
start connecting to a rpc pipe after binding structure
882
pipe_conn_req = dcerpc_pipe_connect_b_send(c, b, table,
883
credentials, ev, lp_ctx);
884
composite_continue(c, pipe_conn_req, continue_pipe_connect_b, c);
890
Stage 2 of pipe_connect: Receive result of actual pipe connect request
891
and say if we're done ok
893
static void continue_pipe_connect_b(struct composite_context *ctx)
895
struct composite_context *c = talloc_get_type(ctx->async.private_data,
896
struct composite_context);
897
struct pipe_conn_state *s = talloc_get_type(c->private_data,
898
struct pipe_conn_state);
900
c->status = dcerpc_pipe_connect_b_recv(ctx, c, &s->pipe);
901
talloc_steal(s, s->pipe);
902
if (!composite_is_ok(c)) return;
909
Receive result of pipe connect (using binding string) request
910
and return connected pipe structure.
912
NTSTATUS dcerpc_pipe_connect_recv(struct composite_context *c,
914
struct dcerpc_pipe **pp)
917
struct pipe_conn_state *s;
919
status = composite_wait(c);
920
if (NT_STATUS_IS_OK(status)) {
921
s = talloc_get_type(c->private_data, struct pipe_conn_state);
922
*pp = talloc_steal(mem_ctx, s->pipe);
930
Open a rpc connection to a rpc pipe, using the specified string
931
binding to determine the endpoint and options - sync version
933
_PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx,
934
struct dcerpc_pipe **pp,
936
const struct ndr_interface_table *table,
937
struct cli_credentials *credentials,
938
struct tevent_context *ev,
939
struct loadparm_context *lp_ctx)
941
struct composite_context *c;
942
c = dcerpc_pipe_connect_send(parent_ctx, binding,
943
table, credentials, ev, lp_ctx);
944
return dcerpc_pipe_connect_recv(c, parent_ctx, pp);