2 * Unix SMB/CIFS implementation.
3 * RPC client transport over named pipes
4 * Copyright (C) Volker Lendecke 2009
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 #define DBGC_CLASS DBGC_RPC_CLI
25 struct rpc_transport_np_state
{
26 struct cli_state
*cli
;
27 const char *pipe_name
;
31 static int rpc_transport_np_state_destructor(struct rpc_transport_np_state
*s
)
34 ret
= cli_close(s
->cli
, s
->fnum
);
36 DEBUG(1, ("rpc_transport_np_state_destructor: cli_close "
37 "failed on pipe %s. Error was %s\n", s
->pipe_name
,
40 DEBUG(10, ("rpc_pipe_destructor: closed %s\n", s
->pipe_name
));
42 * We can't do much on failure
47 struct rpc_np_write_state
{
52 static void rpc_np_write_done(struct async_req
*subreq
);
54 static struct tevent_req
*rpc_np_write_send(TALLOC_CTX
*mem_ctx
,
55 struct event_context
*ev
,
56 const uint8_t *data
, size_t size
,
59 struct rpc_transport_np_state
*np_transport
= talloc_get_type_abort(
60 priv
, struct rpc_transport_np_state
);
61 struct tevent_req
*req
;
62 struct async_req
*subreq
;
63 struct rpc_np_write_state
*state
;
65 req
= tevent_req_create(mem_ctx
, &state
, struct rpc_np_write_state
);
71 subreq
= cli_write_andx_send(mem_ctx
, ev
, np_transport
->cli
,
73 8, /* 8 means message mode. */
78 subreq
->async
.fn
= rpc_np_write_done
;
79 subreq
->async
.priv
= req
;
86 static void rpc_np_write_done(struct async_req
*subreq
)
88 struct tevent_req
*req
= talloc_get_type_abort(
89 subreq
->async
.priv
, struct tevent_req
);
90 struct rpc_np_write_state
*state
= tevent_req_data(
91 req
, struct rpc_np_write_state
);
94 status
= cli_write_andx_recv(subreq
, &state
->written
);
96 if (!NT_STATUS_IS_OK(status
)) {
97 tevent_req_nterror(req
, status
);
100 tevent_req_done(req
);
103 static NTSTATUS
rpc_np_write_recv(struct tevent_req
*req
, ssize_t
*pwritten
)
105 struct rpc_np_write_state
*state
= tevent_req_data(
106 req
, struct rpc_np_write_state
);
109 if (tevent_req_is_nterror(req
, &status
)) {
112 *pwritten
= state
->written
;
116 struct rpc_np_read_state
{
122 static void rpc_np_read_done(struct async_req
*subreq
);
124 static struct tevent_req
*rpc_np_read_send(TALLOC_CTX
*mem_ctx
,
125 struct event_context
*ev
,
126 uint8_t *data
, size_t size
,
129 struct rpc_transport_np_state
*np_transport
= talloc_get_type_abort(
130 priv
, struct rpc_transport_np_state
);
131 struct tevent_req
*req
;
132 struct async_req
*subreq
;
133 struct rpc_np_read_state
*state
;
135 req
= tevent_req_create(mem_ctx
, &state
, struct rpc_np_read_state
);
142 subreq
= cli_read_andx_send(mem_ctx
, ev
, np_transport
->cli
,
143 np_transport
->fnum
, 0, size
);
144 if (subreq
== NULL
) {
147 subreq
->async
.fn
= rpc_np_read_done
;
148 subreq
->async
.priv
= req
;
155 static void rpc_np_read_done(struct async_req
*subreq
)
157 struct tevent_req
*req
= talloc_get_type_abort(
158 subreq
->async
.priv
, struct tevent_req
);
159 struct rpc_np_read_state
*state
= tevent_req_data(
160 req
, struct rpc_np_read_state
);
164 status
= cli_read_andx_recv(subreq
, &state
->received
, &rcvbuf
);
166 * We can't TALLOC_FREE(subreq) as usual here, as rcvbuf still is a
169 if (NT_STATUS_EQUAL(status
, NT_STATUS_BUFFER_TOO_SMALL
)) {
170 status
= NT_STATUS_OK
;
172 if (!NT_STATUS_IS_OK(status
)) {
174 tevent_req_nterror(req
, status
);
178 if (state
->received
> state
->size
) {
180 tevent_req_nterror(req
, NT_STATUS_INVALID_NETWORK_RESPONSE
);
184 memcpy(state
->data
, rcvbuf
, state
->received
);
185 tevent_req_done(req
);
188 static NTSTATUS
rpc_np_read_recv(struct tevent_req
*req
, ssize_t
*preceived
)
190 struct rpc_np_read_state
*state
= tevent_req_data(
191 req
, struct rpc_np_read_state
);
194 if (tevent_req_is_nterror(req
, &status
)) {
197 *preceived
= state
->received
;
201 struct rpc_np_trans_state
{
207 static void rpc_np_trans_done(struct async_req
*subreq
);
209 static struct tevent_req
*rpc_np_trans_send(TALLOC_CTX
*mem_ctx
,
210 struct event_context
*ev
,
211 uint8_t *data
, size_t data_len
,
212 uint32_t max_rdata_len
,
215 struct rpc_transport_np_state
*np_transport
= talloc_get_type_abort(
216 priv
, struct rpc_transport_np_state
);
217 struct tevent_req
*req
;
218 struct async_req
*subreq
;
219 struct rpc_np_trans_state
*state
;
221 req
= tevent_req_create(mem_ctx
, &state
, struct rpc_np_trans_state
);
226 SSVAL(state
->setup
+0, 0, TRANSACT_DCERPCCMD
);
227 SSVAL(state
->setup
+1, 0, np_transport
->fnum
);
229 subreq
= cli_trans_send(
230 state
, ev
, np_transport
->cli
, SMBtrans
,
231 "\\PIPE\\", 0, 0, 0, state
->setup
, 2, 0,
232 NULL
, 0, 0, data
, data_len
, max_rdata_len
);
233 if (subreq
== NULL
) {
236 subreq
->async
.fn
= rpc_np_trans_done
;
237 subreq
->async
.priv
= req
;
245 static void rpc_np_trans_done(struct async_req
*subreq
)
247 struct tevent_req
*req
= talloc_get_type_abort(
248 subreq
->async
.priv
, struct tevent_req
);
249 struct rpc_np_trans_state
*state
= tevent_req_data(
250 req
, struct rpc_np_trans_state
);
253 status
= cli_trans_recv(subreq
, state
, NULL
, NULL
, NULL
, NULL
,
254 &state
->rdata
, &state
->rdata_len
);
256 if (!NT_STATUS_IS_OK(status
)) {
257 tevent_req_nterror(req
, status
);
260 tevent_req_done(req
);
263 static NTSTATUS
rpc_np_trans_recv(struct tevent_req
*req
, TALLOC_CTX
*mem_ctx
,
264 uint8_t **prdata
, uint32_t *prdata_len
)
266 struct rpc_np_trans_state
*state
= tevent_req_data(
267 req
, struct rpc_np_trans_state
);
270 if (tevent_req_is_nterror(req
, &status
)) {
273 *prdata
= talloc_move(mem_ctx
, &state
->rdata
);
274 *prdata_len
= state
->rdata_len
;
278 struct rpc_transport_np_init_state
{
279 struct rpc_cli_transport
*transport
;
280 struct rpc_transport_np_state
*transport_np
;
283 static void rpc_transport_np_init_pipe_open(struct async_req
*subreq
);
285 struct async_req
*rpc_transport_np_init_send(TALLOC_CTX
*mem_ctx
,
286 struct event_context
*ev
,
287 struct cli_state
*cli
,
288 const struct ndr_syntax_id
*abstract_syntax
)
290 struct async_req
*result
, *subreq
;
291 struct rpc_transport_np_init_state
*state
;
293 if (!async_req_setup(mem_ctx
, &result
, &state
,
294 struct rpc_transport_np_init_state
)) {
298 state
->transport
= talloc(state
, struct rpc_cli_transport
);
299 if (state
->transport
== NULL
) {
302 state
->transport_np
= talloc(state
->transport
,
303 struct rpc_transport_np_state
);
304 if (state
->transport_np
== NULL
) {
307 state
->transport
->priv
= state
->transport_np
;
309 state
->transport_np
->pipe_name
= get_pipe_name_from_iface(
311 state
->transport_np
->cli
= cli
;
313 subreq
= cli_ntcreate_send(
314 state
, ev
, cli
, state
->transport_np
->pipe_name
, 0,
315 DESIRED_ACCESS_PIPE
, 0, FILE_SHARE_READ
|FILE_SHARE_WRITE
,
317 if (subreq
== NULL
) {
320 subreq
->async
.fn
= rpc_transport_np_init_pipe_open
;
321 subreq
->async
.priv
= result
;
329 static void rpc_transport_np_init_pipe_open(struct async_req
*subreq
)
331 struct async_req
*req
= talloc_get_type_abort(
332 subreq
->async
.priv
, struct async_req
);
333 struct rpc_transport_np_init_state
*state
= talloc_get_type_abort(
334 req
->private_data
, struct rpc_transport_np_init_state
);
337 status
= cli_ntcreate_recv(subreq
, &state
->transport_np
->fnum
);
339 if (!NT_STATUS_IS_OK(status
)) {
340 async_req_nterror(req
, status
);
344 talloc_set_destructor(state
->transport_np
,
345 rpc_transport_np_state_destructor
);
349 NTSTATUS
rpc_transport_np_init_recv(struct async_req
*req
,
351 struct rpc_cli_transport
**presult
)
353 struct rpc_transport_np_init_state
*state
= talloc_get_type_abort(
354 req
->private_data
, struct rpc_transport_np_init_state
);
357 if (async_req_is_nterror(req
, &status
)) {
361 state
->transport
->write_send
= rpc_np_write_send
;
362 state
->transport
->write_recv
= rpc_np_write_recv
;
363 state
->transport
->read_send
= rpc_np_read_send
;
364 state
->transport
->read_recv
= rpc_np_read_recv
;
365 state
->transport
->trans_send
= rpc_np_trans_send
;
366 state
->transport
->trans_recv
= rpc_np_trans_recv
;
368 *presult
= talloc_move(mem_ctx
, &state
->transport
);
372 NTSTATUS
rpc_transport_np_init(TALLOC_CTX
*mem_ctx
, struct cli_state
*cli
,
373 const struct ndr_syntax_id
*abstract_syntax
,
374 struct rpc_cli_transport
**presult
)
376 TALLOC_CTX
*frame
= talloc_stackframe();
377 struct event_context
*ev
;
378 struct async_req
*req
;
381 ev
= event_context_init(frame
);
383 status
= NT_STATUS_NO_MEMORY
;
387 req
= rpc_transport_np_init_send(frame
, ev
, cli
, abstract_syntax
);
389 status
= NT_STATUS_NO_MEMORY
;
393 while (req
->state
< ASYNC_REQ_DONE
) {
397 status
= rpc_transport_np_init_recv(req
, mem_ctx
, presult
);
403 struct cli_state
*rpc_pipe_np_smb_conn(struct rpc_pipe_client
*p
)
405 struct rpc_transport_np_state
*state
= talloc_get_type(
406 p
->transport
->priv
, struct rpc_transport_np_state
);