2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client routines
4 * Largely rewritten by Jeremy Allison 2005.
5 * Heavily modified by Simo Sorce 2010.
6 * Copyright Andrew Bartlett 2011.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 #include "../lib/util/tevent_ntstatus.h"
24 #include "librpc/gen_ndr/ndr_epmapper_c.h"
25 #include "../librpc/gen_ndr/ndr_schannel.h"
26 #include "../librpc/gen_ndr/ndr_dssetup.h"
27 #include "../libcli/auth/schannel.h"
28 #include "../libcli/auth/spnego.h"
29 #include "../auth/ntlmssp/ntlmssp.h"
30 #include "auth_generic.h"
31 #include "librpc/gen_ndr/ndr_dcerpc.h"
32 #include "librpc/gen_ndr/ndr_netlogon_c.h"
33 #include "librpc/rpc/dcerpc.h"
36 #include "libsmb/libsmb.h"
37 #include "auth/gensec/gensec.h"
38 #include "auth/credentials/credentials.h"
39 #include "../libcli/smb/smbXcli_base.h"
42 #define DBGC_CLASS DBGC_RPC_CLI
44 /********************************************************************
45 Pipe description for a DEBUG
46 ********************************************************************/
47 static const char *rpccli_pipe_txt(TALLOC_CTX *mem_ctx,
48 struct rpc_pipe_client *cli)
50 char *result = talloc_asprintf(mem_ctx, "host %s", cli->desthost);
57 /********************************************************************
59 ********************************************************************/
61 static uint32 get_rpc_call_id(void)
63 static uint32 call_id = 0;
67 /*******************************************************************
68 Use SMBreadX to get rest of one fragment's worth of rpc data.
69 Reads the whole size or give an error message
70 ********************************************************************/
72 struct rpc_read_state {
73 struct tevent_context *ev;
74 struct rpc_cli_transport *transport;
80 static void rpc_read_done(struct tevent_req *subreq);
82 static struct tevent_req *rpc_read_send(TALLOC_CTX *mem_ctx,
83 struct tevent_context *ev,
84 struct rpc_cli_transport *transport,
85 uint8_t *data, size_t size)
87 struct tevent_req *req, *subreq;
88 struct rpc_read_state *state;
90 req = tevent_req_create(mem_ctx, &state, struct rpc_read_state);
95 state->transport = transport;
100 DEBUG(5, ("rpc_read_send: data_to_read: %u\n", (unsigned int)size));
102 subreq = transport->read_send(state, ev, (uint8_t *)data, size,
104 if (subreq == NULL) {
107 tevent_req_set_callback(subreq, rpc_read_done, req);
115 static void rpc_read_done(struct tevent_req *subreq)
117 struct tevent_req *req = tevent_req_callback_data(
118 subreq, struct tevent_req);
119 struct rpc_read_state *state = tevent_req_data(
120 req, struct rpc_read_state);
124 status = state->transport->read_recv(subreq, &received);
126 if (!NT_STATUS_IS_OK(status)) {
127 tevent_req_nterror(req, status);
131 state->num_read += received;
132 if (state->num_read == state->size) {
133 tevent_req_done(req);
137 subreq = state->transport->read_send(state, state->ev,
138 state->data + state->num_read,
139 state->size - state->num_read,
140 state->transport->priv);
141 if (tevent_req_nomem(subreq, req)) {
144 tevent_req_set_callback(subreq, rpc_read_done, req);
147 static NTSTATUS rpc_read_recv(struct tevent_req *req)
149 return tevent_req_simple_recv_ntstatus(req);
152 struct rpc_write_state {
153 struct tevent_context *ev;
154 struct rpc_cli_transport *transport;
160 static void rpc_write_done(struct tevent_req *subreq);
162 static struct tevent_req *rpc_write_send(TALLOC_CTX *mem_ctx,
163 struct tevent_context *ev,
164 struct rpc_cli_transport *transport,
165 const uint8_t *data, size_t size)
167 struct tevent_req *req, *subreq;
168 struct rpc_write_state *state;
170 req = tevent_req_create(mem_ctx, &state, struct rpc_write_state);
175 state->transport = transport;
178 state->num_written = 0;
180 DEBUG(5, ("rpc_write_send: data_to_write: %u\n", (unsigned int)size));
182 subreq = transport->write_send(state, ev, data, size, transport->priv);
183 if (subreq == NULL) {
186 tevent_req_set_callback(subreq, rpc_write_done, req);
193 static void rpc_write_done(struct tevent_req *subreq)
195 struct tevent_req *req = tevent_req_callback_data(
196 subreq, struct tevent_req);
197 struct rpc_write_state *state = tevent_req_data(
198 req, struct rpc_write_state);
202 status = state->transport->write_recv(subreq, &written);
204 if (!NT_STATUS_IS_OK(status)) {
205 tevent_req_nterror(req, status);
209 state->num_written += written;
211 if (state->num_written == state->size) {
212 tevent_req_done(req);
216 subreq = state->transport->write_send(state, state->ev,
217 state->data + state->num_written,
218 state->size - state->num_written,
219 state->transport->priv);
220 if (tevent_req_nomem(subreq, req)) {
223 tevent_req_set_callback(subreq, rpc_write_done, req);
226 static NTSTATUS rpc_write_recv(struct tevent_req *req)
228 return tevent_req_simple_recv_ntstatus(req);
232 /****************************************************************************
233 Try and get a PDU's worth of data from current_pdu. If not, then read more
235 ****************************************************************************/
237 struct get_complete_frag_state {
238 struct tevent_context *ev;
239 struct rpc_pipe_client *cli;
244 static void get_complete_frag_got_header(struct tevent_req *subreq);
245 static void get_complete_frag_got_rest(struct tevent_req *subreq);
247 static struct tevent_req *get_complete_frag_send(TALLOC_CTX *mem_ctx,
248 struct tevent_context *ev,
249 struct rpc_pipe_client *cli,
252 struct tevent_req *req, *subreq;
253 struct get_complete_frag_state *state;
257 req = tevent_req_create(mem_ctx, &state,
258 struct get_complete_frag_state);
264 state->frag_len = RPC_HEADER_LEN;
267 received = pdu->length;
268 if (received < RPC_HEADER_LEN) {
269 if (!data_blob_realloc(mem_ctx, pdu, RPC_HEADER_LEN)) {
270 status = NT_STATUS_NO_MEMORY;
273 subreq = rpc_read_send(state, state->ev,
274 state->cli->transport,
275 pdu->data + received,
276 RPC_HEADER_LEN - received);
277 if (subreq == NULL) {
278 status = NT_STATUS_NO_MEMORY;
281 tevent_req_set_callback(subreq, get_complete_frag_got_header,
286 state->frag_len = dcerpc_get_frag_length(pdu);
289 * Ensure we have frag_len bytes of data.
291 if (received < state->frag_len) {
292 if (!data_blob_realloc(NULL, pdu, state->frag_len)) {
293 status = NT_STATUS_NO_MEMORY;
296 subreq = rpc_read_send(state, state->ev,
297 state->cli->transport,
298 pdu->data + received,
299 state->frag_len - received);
300 if (subreq == NULL) {
301 status = NT_STATUS_NO_MEMORY;
304 tevent_req_set_callback(subreq, get_complete_frag_got_rest,
309 status = NT_STATUS_OK;
311 if (NT_STATUS_IS_OK(status)) {
312 tevent_req_done(req);
314 tevent_req_nterror(req, status);
316 return tevent_req_post(req, ev);
319 static void get_complete_frag_got_header(struct tevent_req *subreq)
321 struct tevent_req *req = tevent_req_callback_data(
322 subreq, struct tevent_req);
323 struct get_complete_frag_state *state = tevent_req_data(
324 req, struct get_complete_frag_state);
327 status = rpc_read_recv(subreq);
329 if (!NT_STATUS_IS_OK(status)) {
330 tevent_req_nterror(req, status);
334 state->frag_len = dcerpc_get_frag_length(state->pdu);
336 if (!data_blob_realloc(NULL, state->pdu, state->frag_len)) {
337 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
342 * We're here in this piece of code because we've read exactly
343 * RPC_HEADER_LEN bytes into state->pdu.
346 subreq = rpc_read_send(state, state->ev, state->cli->transport,
347 state->pdu->data + RPC_HEADER_LEN,
348 state->frag_len - RPC_HEADER_LEN);
349 if (tevent_req_nomem(subreq, req)) {
352 tevent_req_set_callback(subreq, get_complete_frag_got_rest, req);
355 static void get_complete_frag_got_rest(struct tevent_req *subreq)
357 struct tevent_req *req = tevent_req_callback_data(
358 subreq, struct tevent_req);
361 status = rpc_read_recv(subreq);
363 if (!NT_STATUS_IS_OK(status)) {
364 tevent_req_nterror(req, status);
367 tevent_req_done(req);
370 static NTSTATUS get_complete_frag_recv(struct tevent_req *req)
372 return tevent_req_simple_recv_ntstatus(req);
375 /****************************************************************************
376 Do basic authentication checks on an incoming pdu.
377 ****************************************************************************/
379 static NTSTATUS cli_pipe_validate_current_pdu(TALLOC_CTX *mem_ctx,
380 struct rpc_pipe_client *cli,
381 struct ncacn_packet *pkt,
383 uint8_t expected_pkt_type,
385 DATA_BLOB *reply_pdu)
387 struct dcerpc_response *r;
388 NTSTATUS ret = NT_STATUS_OK;
392 * Point the return values at the real data including the RPC
393 * header. Just in case the caller wants it.
397 /* Ensure we have the correct type. */
398 switch (pkt->ptype) {
399 case DCERPC_PKT_ALTER_RESP:
400 case DCERPC_PKT_BIND_ACK:
402 /* Client code never receives this kind of packets */
406 case DCERPC_PKT_RESPONSE:
408 r = &pkt->u.response;
410 /* Here's where we deal with incoming sign/seal. */
411 ret = dcerpc_check_auth(cli->auth, pkt,
412 &r->stub_and_verifier,
413 DCERPC_RESPONSE_LENGTH,
415 if (!NT_STATUS_IS_OK(ret)) {
419 if (pkt->frag_length < DCERPC_RESPONSE_LENGTH + pad_len) {
420 return NT_STATUS_BUFFER_TOO_SMALL;
423 /* Point the return values at the NDR data. */
424 rdata->data = r->stub_and_verifier.data;
426 if (pkt->auth_length) {
427 /* We've already done integer wrap tests in
428 * dcerpc_check_auth(). */
429 rdata->length = r->stub_and_verifier.length
431 - DCERPC_AUTH_TRAILER_LENGTH
434 rdata->length = r->stub_and_verifier.length;
437 DEBUG(10, ("Got pdu len %lu, data_len %lu, ss_len %u\n",
438 (long unsigned int)pdu->length,
439 (long unsigned int)rdata->length,
440 (unsigned int)pad_len));
443 * If this is the first reply, and the allocation hint is
444 * reasonable, try and set up the reply_pdu DATA_BLOB to the
448 if ((reply_pdu->length == 0) &&
449 r->alloc_hint && (r->alloc_hint < 15*1024*1024)) {
450 if (!data_blob_realloc(mem_ctx, reply_pdu,
452 DEBUG(0, ("reply alloc hint %d too "
453 "large to allocate\n",
454 (int)r->alloc_hint));
455 return NT_STATUS_NO_MEMORY;
461 case DCERPC_PKT_BIND_NAK:
462 DEBUG(1, (__location__ ": Bind NACK received from %s!\n",
463 rpccli_pipe_txt(talloc_tos(), cli)));
464 /* Use this for now... */
465 return NT_STATUS_NETWORK_ACCESS_DENIED;
467 case DCERPC_PKT_FAULT:
469 DEBUG(1, (__location__ ": RPC fault code %s received "
471 dcerpc_errstr(talloc_tos(),
472 pkt->u.fault.status),
473 rpccli_pipe_txt(talloc_tos(), cli)));
475 return dcerpc_fault_to_nt_status(pkt->u.fault.status);
478 DEBUG(0, (__location__ "Unknown packet type %u received "
480 (unsigned int)pkt->ptype,
481 rpccli_pipe_txt(talloc_tos(), cli)));
482 return NT_STATUS_INVALID_INFO_CLASS;
485 if (pkt->ptype != expected_pkt_type) {
486 DEBUG(3, (__location__ ": Connection to %s got an unexpected "
487 "RPC packet type - %u, not %u\n",
488 rpccli_pipe_txt(talloc_tos(), cli),
489 pkt->ptype, expected_pkt_type));
490 return NT_STATUS_INVALID_INFO_CLASS;
493 /* Do this just before return - we don't want to modify any rpc header
494 data before now as we may have needed to do cryptographic actions on
497 if ((pkt->ptype == DCERPC_PKT_BIND_ACK) &&
498 !(pkt->pfc_flags & DCERPC_PFC_FLAG_LAST)) {
499 DEBUG(5, (__location__ ": bug in server (AS/U?), setting "
500 "fragment first/last ON.\n"));
501 pkt->pfc_flags |= DCERPC_PFC_FLAG_FIRST | DCERPC_PFC_FLAG_LAST;
507 /****************************************************************************
508 Call a remote api on an arbitrary pipe. takes param, data and setup buffers.
509 ****************************************************************************/
511 struct cli_api_pipe_state {
512 struct tevent_context *ev;
513 struct rpc_cli_transport *transport;
518 static void cli_api_pipe_trans_done(struct tevent_req *subreq);
519 static void cli_api_pipe_write_done(struct tevent_req *subreq);
520 static void cli_api_pipe_read_done(struct tevent_req *subreq);
522 static struct tevent_req *cli_api_pipe_send(TALLOC_CTX *mem_ctx,
523 struct tevent_context *ev,
524 struct rpc_cli_transport *transport,
525 uint8_t *data, size_t data_len,
526 uint32_t max_rdata_len)
528 struct tevent_req *req, *subreq;
529 struct cli_api_pipe_state *state;
532 req = tevent_req_create(mem_ctx, &state, struct cli_api_pipe_state);
537 state->transport = transport;
539 if (max_rdata_len < RPC_HEADER_LEN) {
541 * For a RPC reply we always need at least RPC_HEADER_LEN
542 * bytes. We check this here because we will receive
543 * RPC_HEADER_LEN bytes in cli_trans_sock_send_done.
545 status = NT_STATUS_INVALID_PARAMETER;
549 if (transport->trans_send != NULL) {
550 subreq = transport->trans_send(state, ev, data, data_len,
551 max_rdata_len, transport->priv);
552 if (subreq == NULL) {
555 tevent_req_set_callback(subreq, cli_api_pipe_trans_done, req);
560 * If the transport does not provide a "trans" routine, i.e. for
561 * example the ncacn_ip_tcp transport, do the write/read step here.
564 subreq = rpc_write_send(state, ev, transport, data, data_len);
565 if (subreq == NULL) {
568 tevent_req_set_callback(subreq, cli_api_pipe_write_done, req);
572 tevent_req_nterror(req, status);
573 return tevent_req_post(req, ev);
579 static void cli_api_pipe_trans_done(struct tevent_req *subreq)
581 struct tevent_req *req = tevent_req_callback_data(
582 subreq, struct tevent_req);
583 struct cli_api_pipe_state *state = tevent_req_data(
584 req, struct cli_api_pipe_state);
587 status = state->transport->trans_recv(subreq, state, &state->rdata,
590 if (!NT_STATUS_IS_OK(status)) {
591 tevent_req_nterror(req, status);
594 tevent_req_done(req);
597 static void cli_api_pipe_write_done(struct tevent_req *subreq)
599 struct tevent_req *req = tevent_req_callback_data(
600 subreq, struct tevent_req);
601 struct cli_api_pipe_state *state = tevent_req_data(
602 req, struct cli_api_pipe_state);
605 status = rpc_write_recv(subreq);
607 if (!NT_STATUS_IS_OK(status)) {
608 tevent_req_nterror(req, status);
612 state->rdata = talloc_array(state, uint8_t, RPC_HEADER_LEN);
613 if (tevent_req_nomem(state->rdata, req)) {
618 * We don't need to use rpc_read_send here, the upper layer will cope
619 * with a short read, transport->trans_send could also return less
620 * than state->max_rdata_len.
622 subreq = state->transport->read_send(state, state->ev, state->rdata,
624 state->transport->priv);
625 if (tevent_req_nomem(subreq, req)) {
628 tevent_req_set_callback(subreq, cli_api_pipe_read_done, req);
631 static void cli_api_pipe_read_done(struct tevent_req *subreq)
633 struct tevent_req *req = tevent_req_callback_data(
634 subreq, struct tevent_req);
635 struct cli_api_pipe_state *state = tevent_req_data(
636 req, struct cli_api_pipe_state);
640 status = state->transport->read_recv(subreq, &received);
642 if (!NT_STATUS_IS_OK(status)) {
643 tevent_req_nterror(req, status);
646 state->rdata_len = received;
647 tevent_req_done(req);
650 static NTSTATUS cli_api_pipe_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
651 uint8_t **prdata, uint32_t *prdata_len)
653 struct cli_api_pipe_state *state = tevent_req_data(
654 req, struct cli_api_pipe_state);
657 if (tevent_req_is_nterror(req, &status)) {
661 *prdata = talloc_move(mem_ctx, &state->rdata);
662 *prdata_len = state->rdata_len;
666 /****************************************************************************
667 Send data on an rpc pipe via trans. The data must be the last
668 pdu fragment of an NDR data stream.
670 Receive response data from an rpc pipe, which may be large...
672 Read the first fragment: unfortunately have to use SMBtrans for the first
673 bit, then SMBreadX for subsequent bits.
675 If first fragment received also wasn't the last fragment, continue
676 getting fragments until we _do_ receive the last fragment.
678 Request/Response PDU's look like the following...
680 |<------------------PDU len----------------------------------------------->|
681 |<-HDR_LEN-->|<--REQ LEN------>|.............|<-AUTH_HDRLEN->|<-AUTH_LEN-->|
683 +------------+-----------------+-------------+---------------+-------------+
684 | RPC HEADER | REQ/RESP HEADER | DATA ...... | AUTH_HDR | AUTH DATA |
685 +------------+-----------------+-------------+---------------+-------------+
687 Where the presence of the AUTH_HDR and AUTH DATA are dependent on the
688 signing & sealing being negotiated.
690 ****************************************************************************/
692 struct rpc_api_pipe_state {
693 struct tevent_context *ev;
694 struct rpc_pipe_client *cli;
695 uint8_t expected_pkt_type;
697 DATA_BLOB incoming_frag;
698 struct ncacn_packet *pkt;
702 size_t reply_pdu_offset;
706 static void rpc_api_pipe_trans_done(struct tevent_req *subreq);
707 static void rpc_api_pipe_got_pdu(struct tevent_req *subreq);
708 static void rpc_api_pipe_auth3_done(struct tevent_req *subreq);
710 static struct tevent_req *rpc_api_pipe_send(TALLOC_CTX *mem_ctx,
711 struct tevent_context *ev,
712 struct rpc_pipe_client *cli,
713 DATA_BLOB *data, /* Outgoing PDU */
714 uint8_t expected_pkt_type)
716 struct tevent_req *req, *subreq;
717 struct rpc_api_pipe_state *state;
718 uint16_t max_recv_frag;
721 req = tevent_req_create(mem_ctx, &state, struct rpc_api_pipe_state);
727 state->expected_pkt_type = expected_pkt_type;
728 state->endianess = DCERPC_DREP_LE;
731 * Ensure we're not sending too much.
733 if (data->length > cli->max_xmit_frag) {
734 status = NT_STATUS_INVALID_PARAMETER;
738 DEBUG(5,("rpc_api_pipe: %s\n", rpccli_pipe_txt(talloc_tos(), cli)));
740 if (state->expected_pkt_type == DCERPC_PKT_AUTH3) {
741 subreq = rpc_write_send(state, ev, cli->transport,
742 data->data, data->length);
743 if (subreq == NULL) {
746 tevent_req_set_callback(subreq, rpc_api_pipe_auth3_done, req);
750 /* get the header first, then fetch the rest once we have
751 * the frag_length available */
752 max_recv_frag = RPC_HEADER_LEN;
754 subreq = cli_api_pipe_send(state, ev, cli->transport,
755 data->data, data->length, max_recv_frag);
756 if (subreq == NULL) {
759 tevent_req_set_callback(subreq, rpc_api_pipe_trans_done, req);
763 tevent_req_nterror(req, status);
764 return tevent_req_post(req, ev);
770 static void rpc_api_pipe_auth3_done(struct tevent_req *subreq)
772 struct tevent_req *req =
773 tevent_req_callback_data(subreq,
777 status = rpc_write_recv(subreq);
779 if (!NT_STATUS_IS_OK(status)) {
780 tevent_req_nterror(req, status);
784 tevent_req_done(req);
787 static void rpc_api_pipe_trans_done(struct tevent_req *subreq)
789 struct tevent_req *req = tevent_req_callback_data(
790 subreq, struct tevent_req);
791 struct rpc_api_pipe_state *state = tevent_req_data(
792 req, struct rpc_api_pipe_state);
794 uint8_t *rdata = NULL;
795 uint32_t rdata_len = 0;
797 status = cli_api_pipe_recv(subreq, state, &rdata, &rdata_len);
799 if (!NT_STATUS_IS_OK(status)) {
800 DEBUG(5, ("cli_api_pipe failed: %s\n", nt_errstr(status)));
801 tevent_req_nterror(req, status);
806 DEBUG(3,("rpc_api_pipe: %s failed to return data.\n",
807 rpccli_pipe_txt(talloc_tos(), state->cli)));
808 tevent_req_done(req);
813 * Move data on state->incoming_frag.
815 state->incoming_frag.data = talloc_move(state, &rdata);
816 state->incoming_frag.length = rdata_len;
817 if (!state->incoming_frag.data) {
818 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
822 /* Ensure we have enough data for a pdu. */
823 subreq = get_complete_frag_send(state, state->ev, state->cli,
824 &state->incoming_frag);
825 if (tevent_req_nomem(subreq, req)) {
828 tevent_req_set_callback(subreq, rpc_api_pipe_got_pdu, req);
831 static void rpc_api_pipe_got_pdu(struct tevent_req *subreq)
833 struct tevent_req *req = tevent_req_callback_data(
834 subreq, struct tevent_req);
835 struct rpc_api_pipe_state *state = tevent_req_data(
836 req, struct rpc_api_pipe_state);
838 DATA_BLOB rdata = data_blob_null;
840 status = get_complete_frag_recv(subreq);
842 if (!NT_STATUS_IS_OK(status)) {
843 DEBUG(5, ("get_complete_frag failed: %s\n",
845 tevent_req_nterror(req, status);
849 state->pkt = talloc(state, struct ncacn_packet);
851 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
855 status = dcerpc_pull_ncacn_packet(state->pkt,
856 &state->incoming_frag,
859 if (!NT_STATUS_IS_OK(status)) {
860 tevent_req_nterror(req, status);
864 if (state->incoming_frag.length != state->pkt->frag_length) {
865 DEBUG(5, ("Incorrect pdu length %u, expected %u\n",
866 (unsigned int)state->incoming_frag.length,
867 (unsigned int)state->pkt->frag_length));
868 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
872 status = cli_pipe_validate_current_pdu(state,
873 state->cli, state->pkt,
874 &state->incoming_frag,
875 state->expected_pkt_type,
879 DEBUG(10,("rpc_api_pipe: got frag len of %u at offset %u: %s\n",
880 (unsigned)state->incoming_frag.length,
881 (unsigned)state->reply_pdu_offset,
884 if (!NT_STATUS_IS_OK(status)) {
885 tevent_req_nterror(req, status);
889 if ((state->pkt->pfc_flags & DCERPC_PFC_FLAG_FIRST)
890 && (state->pkt->drep[0] != DCERPC_DREP_LE)) {
892 * Set the data type correctly for big-endian data on the
895 DEBUG(10,("rpc_api_pipe: On %s PDU data format is "
897 rpccli_pipe_txt(talloc_tos(), state->cli)));
898 state->endianess = 0x00; /* BIG ENDIAN */
901 * Check endianness on subsequent packets.
903 if (state->endianess != state->pkt->drep[0]) {
904 DEBUG(0,("rpc_api_pipe: Error : Endianness changed from %s to "
906 state->endianess?"little":"big",
907 state->pkt->drep[0]?"little":"big"));
908 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
912 /* Now copy the data portion out of the pdu into rbuf. */
913 if (state->reply_pdu.length < state->reply_pdu_offset + rdata.length) {
914 if (!data_blob_realloc(NULL, &state->reply_pdu,
915 state->reply_pdu_offset + rdata.length)) {
916 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
921 memcpy(state->reply_pdu.data + state->reply_pdu_offset,
922 rdata.data, rdata.length);
923 state->reply_pdu_offset += rdata.length;
925 /* reset state->incoming_frag, there is no need to free it,
926 * it will be reallocated to the right size the next time
928 state->incoming_frag.length = 0;
930 if (state->pkt->pfc_flags & DCERPC_PFC_FLAG_LAST) {
931 /* make sure the pdu length is right now that we
932 * have all the data available (alloc hint may
933 * have allocated more than was actually used) */
934 state->reply_pdu.length = state->reply_pdu_offset;
935 DEBUG(10,("rpc_api_pipe: %s returned %u bytes.\n",
936 rpccli_pipe_txt(talloc_tos(), state->cli),
937 (unsigned)state->reply_pdu.length));
938 tevent_req_done(req);
942 subreq = get_complete_frag_send(state, state->ev, state->cli,
943 &state->incoming_frag);
944 if (tevent_req_nomem(subreq, req)) {
947 tevent_req_set_callback(subreq, rpc_api_pipe_got_pdu, req);
950 static NTSTATUS rpc_api_pipe_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
951 struct ncacn_packet **pkt,
952 DATA_BLOB *reply_pdu)
954 struct rpc_api_pipe_state *state = tevent_req_data(
955 req, struct rpc_api_pipe_state);
958 if (tevent_req_is_nterror(req, &status)) {
962 /* return data to caller and assign it ownership of memory */
964 reply_pdu->data = talloc_move(mem_ctx, &state->reply_pdu.data);
965 reply_pdu->length = state->reply_pdu.length;
966 state->reply_pdu.length = 0;
968 data_blob_free(&state->reply_pdu);
972 *pkt = talloc_steal(mem_ctx, state->pkt);
978 /*******************************************************************
979 Creates NTLMSSP auth bind.
980 ********************************************************************/
982 static NTSTATUS create_generic_auth_rpc_bind_req(struct rpc_pipe_client *cli,
984 DATA_BLOB *auth_token)
986 struct gensec_security *gensec_security;
987 DATA_BLOB null_blob = data_blob_null;
989 gensec_security = talloc_get_type_abort(cli->auth->auth_ctx,
990 struct gensec_security);
992 DEBUG(5, ("create_generic_auth_rpc_bind_req: generate first token\n"));
993 return gensec_update(gensec_security, mem_ctx, NULL, null_blob, auth_token);
996 /*******************************************************************
997 Creates schannel auth bind.
998 ********************************************************************/
1000 static NTSTATUS create_schannel_auth_rpc_bind_req(struct rpc_pipe_client *cli,
1001 DATA_BLOB *auth_token)
1004 struct NL_AUTH_MESSAGE r;
1006 /* Use lp_workgroup() if domain not specified */
1008 if (!cli->auth->domain || !cli->auth->domain[0]) {
1009 cli->auth->domain = talloc_strdup(cli, lp_workgroup());
1010 if (cli->auth->domain == NULL) {
1011 return NT_STATUS_NO_MEMORY;
1016 * Now marshall the data into the auth parse_struct.
1019 r.MessageType = NL_NEGOTIATE_REQUEST;
1020 r.Flags = NL_FLAG_OEM_NETBIOS_DOMAIN_NAME |
1021 NL_FLAG_OEM_NETBIOS_COMPUTER_NAME;
1022 r.oem_netbios_domain.a = cli->auth->domain;
1023 r.oem_netbios_computer.a = lp_netbios_name();
1025 status = dcerpc_push_schannel_bind(cli, &r, auth_token);
1026 if (!NT_STATUS_IS_OK(status)) {
1030 return NT_STATUS_OK;
1033 /*******************************************************************
1034 Creates the internals of a DCE/RPC bind request or alter context PDU.
1035 ********************************************************************/
1037 static NTSTATUS create_bind_or_alt_ctx_internal(TALLOC_CTX *mem_ctx,
1038 enum dcerpc_pkt_type ptype,
1040 const struct ndr_syntax_id *abstract,
1041 const struct ndr_syntax_id *transfer,
1042 const DATA_BLOB *auth_info,
1045 uint16 auth_len = auth_info->length;
1047 union dcerpc_payload u;
1048 struct dcerpc_ctx_list ctx_list;
1051 auth_len -= DCERPC_AUTH_TRAILER_LENGTH;
1054 ctx_list.context_id = 0;
1055 ctx_list.num_transfer_syntaxes = 1;
1056 ctx_list.abstract_syntax = *abstract;
1057 ctx_list.transfer_syntaxes = (struct ndr_syntax_id *)discard_const(transfer);
1059 u.bind.max_xmit_frag = RPC_MAX_PDU_FRAG_LEN;
1060 u.bind.max_recv_frag = RPC_MAX_PDU_FRAG_LEN;
1061 u.bind.assoc_group_id = 0x0;
1062 u.bind.num_contexts = 1;
1063 u.bind.ctx_list = &ctx_list;
1064 u.bind.auth_info = *auth_info;
1066 status = dcerpc_push_ncacn_packet(mem_ctx,
1068 DCERPC_PFC_FLAG_FIRST |
1069 DCERPC_PFC_FLAG_LAST,
1074 if (!NT_STATUS_IS_OK(status)) {
1075 DEBUG(0, ("Failed to marshall bind/alter ncacn_packet.\n"));
1079 return NT_STATUS_OK;
1082 /*******************************************************************
1083 Creates a DCE/RPC bind request.
1084 ********************************************************************/
1086 static NTSTATUS create_rpc_bind_req(TALLOC_CTX *mem_ctx,
1087 struct rpc_pipe_client *cli,
1088 struct pipe_auth_data *auth,
1090 const struct ndr_syntax_id *abstract,
1091 const struct ndr_syntax_id *transfer,
1094 DATA_BLOB auth_token = data_blob_null;
1095 DATA_BLOB auth_info = data_blob_null;
1096 NTSTATUS ret = NT_STATUS_OK;
1098 switch (auth->auth_type) {
1099 case DCERPC_AUTH_TYPE_SCHANNEL:
1100 ret = create_schannel_auth_rpc_bind_req(cli, &auth_token);
1101 if (!NT_STATUS_IS_OK(ret)) {
1106 case DCERPC_AUTH_TYPE_NTLMSSP:
1107 case DCERPC_AUTH_TYPE_KRB5:
1108 case DCERPC_AUTH_TYPE_SPNEGO:
1109 ret = create_generic_auth_rpc_bind_req(cli, mem_ctx, &auth_token);
1111 if (!NT_STATUS_IS_OK(ret) &&
1112 !NT_STATUS_EQUAL(ret, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1117 case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
1118 auth_token = data_blob_talloc(mem_ctx,
1119 "NCALRPC_AUTH_TOKEN",
1123 case DCERPC_AUTH_TYPE_NONE:
1127 /* "Can't" happen. */
1128 return NT_STATUS_INVALID_INFO_CLASS;
1131 if (auth_token.length != 0) {
1132 ret = dcerpc_push_dcerpc_auth(cli,
1135 0, /* auth_pad_length */
1136 1, /* auth_context_id */
1139 if (!NT_STATUS_IS_OK(ret)) {
1142 data_blob_free(&auth_token);
1145 ret = create_bind_or_alt_ctx_internal(mem_ctx,
1155 /*******************************************************************
1157 Does an rpc request on a pipe. Incoming data is NDR encoded in in_data.
1158 Reply is NDR encoded in out_data. Splits the data stream into RPC PDU's
1159 and deals with signing/sealing details.
1160 ********************************************************************/
1162 struct rpc_api_pipe_req_state {
1163 struct tevent_context *ev;
1164 struct rpc_pipe_client *cli;
1167 DATA_BLOB *req_data;
1168 uint32_t req_data_sent;
1170 DATA_BLOB reply_pdu;
1173 static void rpc_api_pipe_req_write_done(struct tevent_req *subreq);
1174 static void rpc_api_pipe_req_done(struct tevent_req *subreq);
1175 static NTSTATUS prepare_next_frag(struct rpc_api_pipe_req_state *state,
1176 bool *is_last_frag);
1178 struct tevent_req *rpc_api_pipe_req_send(TALLOC_CTX *mem_ctx,
1179 struct tevent_context *ev,
1180 struct rpc_pipe_client *cli,
1182 DATA_BLOB *req_data)
1184 struct tevent_req *req, *subreq;
1185 struct rpc_api_pipe_req_state *state;
1189 req = tevent_req_create(mem_ctx, &state,
1190 struct rpc_api_pipe_req_state);
1196 state->op_num = op_num;
1197 state->req_data = req_data;
1198 state->req_data_sent = 0;
1199 state->call_id = get_rpc_call_id();
1200 state->reply_pdu = data_blob_null;
1201 state->rpc_out = data_blob_null;
1203 if (cli->max_xmit_frag < DCERPC_REQUEST_LENGTH
1204 + RPC_MAX_SIGN_SIZE) {
1205 /* Server is screwed up ! */
1206 status = NT_STATUS_INVALID_PARAMETER;
1210 status = prepare_next_frag(state, &is_last_frag);
1211 if (!NT_STATUS_IS_OK(status)) {
1216 subreq = rpc_api_pipe_send(state, ev, state->cli,
1218 DCERPC_PKT_RESPONSE);
1219 if (subreq == NULL) {
1222 tevent_req_set_callback(subreq, rpc_api_pipe_req_done, req);
1224 subreq = rpc_write_send(state, ev, cli->transport,
1225 state->rpc_out.data,
1226 state->rpc_out.length);
1227 if (subreq == NULL) {
1230 tevent_req_set_callback(subreq, rpc_api_pipe_req_write_done,
1236 tevent_req_nterror(req, status);
1237 return tevent_req_post(req, ev);
1243 static NTSTATUS prepare_next_frag(struct rpc_api_pipe_req_state *state,
1246 size_t data_sent_thistime;
1253 union dcerpc_payload u;
1255 data_left = state->req_data->length - state->req_data_sent;
1257 status = dcerpc_guess_sizes(state->cli->auth,
1258 DCERPC_REQUEST_LENGTH, data_left,
1259 state->cli->max_xmit_frag,
1260 CLIENT_NDR_PADDING_SIZE,
1261 &data_sent_thistime,
1262 &frag_len, &auth_len, &pad_len);
1263 if (!NT_STATUS_IS_OK(status)) {
1267 if (state->req_data_sent == 0) {
1268 flags = DCERPC_PFC_FLAG_FIRST;
1271 if (data_sent_thistime == data_left) {
1272 flags |= DCERPC_PFC_FLAG_LAST;
1275 data_blob_free(&state->rpc_out);
1277 ZERO_STRUCT(u.request);
1279 u.request.alloc_hint = state->req_data->length;
1280 u.request.context_id = 0;
1281 u.request.opnum = state->op_num;
1283 status = dcerpc_push_ncacn_packet(state,
1290 if (!NT_STATUS_IS_OK(status)) {
1294 /* explicitly set frag_len here as dcerpc_push_ncacn_packet() can't
1295 * compute it right for requests because the auth trailer is missing
1297 dcerpc_set_frag_length(&state->rpc_out, frag_len);
1299 /* Copy in the data. */
1300 if (!data_blob_append(NULL, &state->rpc_out,
1301 state->req_data->data + state->req_data_sent,
1302 data_sent_thistime)) {
1303 return NT_STATUS_NO_MEMORY;
1306 switch (state->cli->auth->auth_level) {
1307 case DCERPC_AUTH_LEVEL_NONE:
1308 case DCERPC_AUTH_LEVEL_CONNECT:
1309 case DCERPC_AUTH_LEVEL_PACKET:
1311 case DCERPC_AUTH_LEVEL_INTEGRITY:
1312 case DCERPC_AUTH_LEVEL_PRIVACY:
1313 status = dcerpc_add_auth_footer(state->cli->auth, pad_len,
1315 if (!NT_STATUS_IS_OK(status)) {
1320 return NT_STATUS_INVALID_PARAMETER;
1323 state->req_data_sent += data_sent_thistime;
1324 *is_last_frag = ((flags & DCERPC_PFC_FLAG_LAST) != 0);
1329 static void rpc_api_pipe_req_write_done(struct tevent_req *subreq)
1331 struct tevent_req *req = tevent_req_callback_data(
1332 subreq, struct tevent_req);
1333 struct rpc_api_pipe_req_state *state = tevent_req_data(
1334 req, struct rpc_api_pipe_req_state);
1338 status = rpc_write_recv(subreq);
1339 TALLOC_FREE(subreq);
1340 if (!NT_STATUS_IS_OK(status)) {
1341 tevent_req_nterror(req, status);
1345 status = prepare_next_frag(state, &is_last_frag);
1346 if (!NT_STATUS_IS_OK(status)) {
1347 tevent_req_nterror(req, status);
1352 subreq = rpc_api_pipe_send(state, state->ev, state->cli,
1354 DCERPC_PKT_RESPONSE);
1355 if (tevent_req_nomem(subreq, req)) {
1358 tevent_req_set_callback(subreq, rpc_api_pipe_req_done, req);
1360 subreq = rpc_write_send(state, state->ev,
1361 state->cli->transport,
1362 state->rpc_out.data,
1363 state->rpc_out.length);
1364 if (tevent_req_nomem(subreq, req)) {
1367 tevent_req_set_callback(subreq, rpc_api_pipe_req_write_done,
1372 static void rpc_api_pipe_req_done(struct tevent_req *subreq)
1374 struct tevent_req *req = tevent_req_callback_data(
1375 subreq, struct tevent_req);
1376 struct rpc_api_pipe_req_state *state = tevent_req_data(
1377 req, struct rpc_api_pipe_req_state);
1380 status = rpc_api_pipe_recv(subreq, state, NULL, &state->reply_pdu);
1381 TALLOC_FREE(subreq);
1382 if (!NT_STATUS_IS_OK(status)) {
1383 tevent_req_nterror(req, status);
1386 tevent_req_done(req);
1389 NTSTATUS rpc_api_pipe_req_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
1390 DATA_BLOB *reply_pdu)
1392 struct rpc_api_pipe_req_state *state = tevent_req_data(
1393 req, struct rpc_api_pipe_req_state);
1396 if (tevent_req_is_nterror(req, &status)) {
1398 * We always have to initialize to reply pdu, even if there is
1399 * none. The rpccli_* caller routines expect this.
1401 *reply_pdu = data_blob_null;
1405 /* return data to caller and assign it ownership of memory */
1406 reply_pdu->data = talloc_move(mem_ctx, &state->reply_pdu.data);
1407 reply_pdu->length = state->reply_pdu.length;
1408 state->reply_pdu.length = 0;
1410 return NT_STATUS_OK;
1413 /****************************************************************************
1414 Check the rpc bind acknowledge response.
1415 ****************************************************************************/
1417 static bool check_bind_response(const struct dcerpc_bind_ack *r,
1418 const struct ndr_syntax_id *transfer)
1420 struct dcerpc_ack_ctx ctx;
1422 if (r->secondary_address_size == 0) {
1423 DEBUG(4,("Ignoring length check -- ASU bug (server didn't fill in the pipe name correctly)"));
1426 if (r->num_results < 1 || !r->ctx_list) {
1430 ctx = r->ctx_list[0];
1432 /* check the transfer syntax */
1433 if ((ctx.syntax.if_version != transfer->if_version) ||
1434 (memcmp(&ctx.syntax.uuid, &transfer->uuid, sizeof(transfer->uuid)) !=0)) {
1435 DEBUG(2,("bind_rpc_pipe: transfer syntax differs\n"));
1439 if (r->num_results != 0x1 || ctx.result != 0) {
1440 DEBUG(2,("bind_rpc_pipe: bind denied results: %d reason: %x\n",
1441 r->num_results, ctx.reason));
1444 DEBUG(5,("check_bind_response: accepted!\n"));
1448 /*******************************************************************
1449 Creates a DCE/RPC bind authentication response.
1450 This is the packet that is sent back to the server once we
1451 have received a BIND-ACK, to finish the third leg of
1452 the authentication handshake.
1453 ********************************************************************/
1455 static NTSTATUS create_rpc_bind_auth3(TALLOC_CTX *mem_ctx,
1456 struct rpc_pipe_client *cli,
1458 enum dcerpc_AuthType auth_type,
1459 enum dcerpc_AuthLevel auth_level,
1460 DATA_BLOB *pauth_blob,
1464 union dcerpc_payload u;
1468 status = dcerpc_push_dcerpc_auth(mem_ctx,
1471 0, /* auth_pad_length */
1472 1, /* auth_context_id */
1474 &u.auth3.auth_info);
1475 if (!NT_STATUS_IS_OK(status)) {
1479 status = dcerpc_push_ncacn_packet(mem_ctx,
1481 DCERPC_PFC_FLAG_FIRST |
1482 DCERPC_PFC_FLAG_LAST,
1487 data_blob_free(&u.auth3.auth_info);
1488 if (!NT_STATUS_IS_OK(status)) {
1489 DEBUG(0,("create_bind_or_alt_ctx_internal: failed to marshall RPC_HDR_RB.\n"));
1493 return NT_STATUS_OK;
1496 /*******************************************************************
1497 Creates a DCE/RPC bind alter context authentication request which
1498 may contain a spnego auth blobl
1499 ********************************************************************/
1501 static NTSTATUS create_rpc_alter_context(TALLOC_CTX *mem_ctx,
1502 enum dcerpc_AuthType auth_type,
1503 enum dcerpc_AuthLevel auth_level,
1505 const struct ndr_syntax_id *abstract,
1506 const struct ndr_syntax_id *transfer,
1507 const DATA_BLOB *pauth_blob, /* spnego auth blob already created. */
1510 DATA_BLOB auth_info;
1513 status = dcerpc_push_dcerpc_auth(mem_ctx,
1516 0, /* auth_pad_length */
1517 1, /* auth_context_id */
1520 if (!NT_STATUS_IS_OK(status)) {
1524 status = create_bind_or_alt_ctx_internal(mem_ctx,
1531 data_blob_free(&auth_info);
1535 /****************************************************************************
1537 ****************************************************************************/
1539 struct rpc_pipe_bind_state {
1540 struct tevent_context *ev;
1541 struct rpc_pipe_client *cli;
1544 uint32_t rpc_call_id;
1545 struct netr_Authenticator auth;
1546 struct netr_Authenticator return_auth;
1547 struct netlogon_creds_CredentialState *creds;
1548 union netr_Capabilities capabilities;
1549 struct netr_LogonGetCapabilities r;
1552 static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq);
1553 static void rpc_pipe_bind_step_two_trigger(struct tevent_req *req);
1554 static NTSTATUS rpc_bind_next_send(struct tevent_req *req,
1555 struct rpc_pipe_bind_state *state,
1556 DATA_BLOB *credentials);
1557 static NTSTATUS rpc_bind_finish_send(struct tevent_req *req,
1558 struct rpc_pipe_bind_state *state,
1559 DATA_BLOB *credentials);
1561 struct tevent_req *rpc_pipe_bind_send(TALLOC_CTX *mem_ctx,
1562 struct tevent_context *ev,
1563 struct rpc_pipe_client *cli,
1564 struct pipe_auth_data *auth)
1566 struct tevent_req *req, *subreq;
1567 struct rpc_pipe_bind_state *state;
1570 req = tevent_req_create(mem_ctx, &state, struct rpc_pipe_bind_state);
1575 DEBUG(5,("Bind RPC Pipe: %s auth_type %u, auth_level %u\n",
1576 rpccli_pipe_txt(talloc_tos(), cli),
1577 (unsigned int)auth->auth_type,
1578 (unsigned int)auth->auth_level ));
1582 state->rpc_call_id = get_rpc_call_id();
1584 cli->auth = talloc_move(cli, &auth);
1586 /* Marshall the outgoing data. */
1587 status = create_rpc_bind_req(state, cli,
1590 &cli->abstract_syntax,
1591 &cli->transfer_syntax,
1594 if (!NT_STATUS_IS_OK(status) &&
1595 !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1599 subreq = rpc_api_pipe_send(state, ev, cli, &state->rpc_out,
1600 DCERPC_PKT_BIND_ACK);
1601 if (subreq == NULL) {
1604 tevent_req_set_callback(subreq, rpc_pipe_bind_step_one_done, req);
1608 tevent_req_nterror(req, status);
1609 return tevent_req_post(req, ev);
1615 static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq)
1617 struct tevent_req *req = tevent_req_callback_data(
1618 subreq, struct tevent_req);
1619 struct rpc_pipe_bind_state *state = tevent_req_data(
1620 req, struct rpc_pipe_bind_state);
1621 struct pipe_auth_data *pauth = state->cli->auth;
1622 struct gensec_security *gensec_security;
1623 struct ncacn_packet *pkt = NULL;
1624 struct dcerpc_auth auth;
1625 DATA_BLOB auth_token = data_blob_null;
1628 status = rpc_api_pipe_recv(subreq, talloc_tos(), &pkt, NULL);
1629 TALLOC_FREE(subreq);
1630 if (!NT_STATUS_IS_OK(status)) {
1631 DEBUG(3, ("rpc_pipe_bind: %s bind request returned %s\n",
1632 rpccli_pipe_txt(talloc_tos(), state->cli),
1633 nt_errstr(status)));
1634 tevent_req_nterror(req, status);
1639 tevent_req_done(req);
1643 if (!check_bind_response(&pkt->u.bind_ack, &state->cli->transfer_syntax)) {
1644 DEBUG(2, ("rpc_pipe_bind: check_bind_response failed.\n"));
1645 tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
1649 state->cli->max_xmit_frag = pkt->u.bind_ack.max_xmit_frag;
1650 state->cli->max_recv_frag = pkt->u.bind_ack.max_recv_frag;
1652 switch(pauth->auth_type) {
1654 case DCERPC_AUTH_TYPE_NONE:
1655 case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
1656 /* Bind complete. */
1657 tevent_req_done(req);
1660 case DCERPC_AUTH_TYPE_SCHANNEL:
1661 rpc_pipe_bind_step_two_trigger(req);
1664 case DCERPC_AUTH_TYPE_NTLMSSP:
1665 case DCERPC_AUTH_TYPE_SPNEGO:
1666 case DCERPC_AUTH_TYPE_KRB5:
1667 /* Paranoid lenght checks */
1668 if (pkt->frag_length < DCERPC_AUTH_TRAILER_LENGTH
1669 + pkt->auth_length) {
1670 tevent_req_nterror(req,
1671 NT_STATUS_INFO_LENGTH_MISMATCH);
1674 /* get auth credentials */
1675 status = dcerpc_pull_dcerpc_auth(talloc_tos(),
1676 &pkt->u.bind_ack.auth_info,
1678 if (!NT_STATUS_IS_OK(status)) {
1679 DEBUG(0, ("Failed to pull dcerpc auth: %s.\n",
1680 nt_errstr(status)));
1681 tevent_req_nterror(req, status);
1691 * For authenticated binds we may need to do 3 or 4 leg binds.
1694 switch(pauth->auth_type) {
1696 case DCERPC_AUTH_TYPE_NONE:
1697 case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
1698 case DCERPC_AUTH_TYPE_SCHANNEL:
1699 /* Bind complete. */
1700 tevent_req_done(req);
1703 case DCERPC_AUTH_TYPE_NTLMSSP:
1704 case DCERPC_AUTH_TYPE_KRB5:
1705 case DCERPC_AUTH_TYPE_SPNEGO:
1706 gensec_security = talloc_get_type_abort(pauth->auth_ctx,
1707 struct gensec_security);
1708 status = gensec_update(gensec_security, state, NULL,
1709 auth.credentials, &auth_token);
1710 if (NT_STATUS_EQUAL(status,
1711 NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1712 status = rpc_bind_next_send(req, state,
1714 } else if (NT_STATUS_IS_OK(status)) {
1715 if (auth_token.length == 0) {
1716 /* Bind complete. */
1717 tevent_req_done(req);
1720 status = rpc_bind_finish_send(req, state,
1729 if (!NT_STATUS_IS_OK(status)) {
1730 tevent_req_nterror(req, status);
1735 DEBUG(0,("cli_finish_bind_auth: unknown auth type %u\n",
1736 (unsigned int)state->cli->auth->auth_type));
1737 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
1740 static void rpc_pipe_bind_step_two_done(struct tevent_req *subreq);
1742 static void rpc_pipe_bind_step_two_trigger(struct tevent_req *req)
1744 struct rpc_pipe_bind_state *state =
1745 tevent_req_data(req,
1746 struct rpc_pipe_bind_state);
1747 struct dcerpc_binding_handle *b = state->cli->binding_handle;
1748 struct schannel_state *schannel_auth =
1749 talloc_get_type_abort(state->cli->auth->auth_ctx,
1750 struct schannel_state);
1751 struct tevent_req *subreq;
1753 if (schannel_auth == NULL ||
1754 !ndr_syntax_id_equal(&state->cli->abstract_syntax,
1755 &ndr_table_netlogon.syntax_id)) {
1756 tevent_req_done(req);
1760 ZERO_STRUCT(state->return_auth);
1762 state->creds = netlogon_creds_copy(state, schannel_auth->creds);
1763 if (state->creds == NULL) {
1764 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
1768 netlogon_creds_client_authenticator(state->creds, &state->auth);
1770 state->r.in.server_name = state->cli->srv_name_slash;
1771 state->r.in.computer_name = state->creds->computer_name;
1772 state->r.in.credential = &state->auth;
1773 state->r.in.query_level = 1;
1774 state->r.in.return_authenticator = &state->return_auth;
1776 state->r.out.capabilities = &state->capabilities;
1777 state->r.out.return_authenticator = &state->return_auth;
1779 subreq = dcerpc_netr_LogonGetCapabilities_r_send(talloc_tos(),
1783 if (subreq == NULL) {
1784 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
1788 tevent_req_set_callback(subreq, rpc_pipe_bind_step_two_done, req);
1792 static void rpc_pipe_bind_step_two_done(struct tevent_req *subreq)
1794 struct tevent_req *req =
1795 tevent_req_callback_data(subreq,
1797 struct rpc_pipe_bind_state *state =
1798 tevent_req_data(req,
1799 struct rpc_pipe_bind_state);
1802 status = dcerpc_netr_LogonGetCapabilities_r_recv(subreq, talloc_tos());
1803 TALLOC_FREE(subreq);
1804 if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
1805 if (state->cli->dc && state->cli->dc->negotiate_flags &
1806 NETLOGON_NEG_SUPPORTS_AES) {
1807 DEBUG(5, ("AES is not supported and the error was %s\n",
1808 nt_errstr(status)));
1809 tevent_req_nterror(req,
1810 NT_STATUS_INVALID_NETWORK_RESPONSE);
1814 /* This is probably NT */
1815 DEBUG(5, ("We are checking against an NT - %s\n",
1816 nt_errstr(status)));
1817 tevent_req_done(req);
1819 } else if (!NT_STATUS_IS_OK(status)) {
1820 DEBUG(0, ("dcerpc_netr_LogonGetCapabilities_r_recv failed with %s\n",
1821 nt_errstr(status)));
1822 tevent_req_nterror(req, status);
1826 if (NT_STATUS_EQUAL(state->r.out.result, NT_STATUS_NOT_IMPLEMENTED)) {
1827 if (state->creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
1828 /* This means AES isn't supported. */
1829 DEBUG(5, ("AES is not supported and the error was %s\n",
1830 nt_errstr(state->r.out.result)));
1831 tevent_req_nterror(req,
1832 NT_STATUS_INVALID_NETWORK_RESPONSE);
1836 /* This is probably an old Samba version */
1837 DEBUG(5, ("We are checking against an old Samba version - %s\n",
1838 nt_errstr(state->r.out.result)));
1839 tevent_req_done(req);
1843 /* We need to check the credential state here, cause win2k3 and earlier
1844 * returns NT_STATUS_NOT_IMPLEMENTED */
1845 if (!netlogon_creds_client_check(state->creds,
1846 &state->r.out.return_authenticator->cred)) {
1848 * Server replied with bad credential. Fail.
1850 DEBUG(0,("rpc_pipe_bind_step_two_done: server %s "
1851 "replied with bad credential\n",
1852 state->cli->desthost));
1853 tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
1857 TALLOC_FREE(state->cli->dc);
1858 state->cli->dc = talloc_steal(state->cli, state->creds);
1860 if (!NT_STATUS_IS_OK(state->r.out.result)) {
1861 DEBUG(0, ("dcerpc_netr_LogonGetCapabilities_r_recv failed with %s\n",
1862 nt_errstr(state->r.out.result)));
1863 tevent_req_nterror(req, state->r.out.result);
1867 if (state->creds->negotiate_flags !=
1868 state->r.out.capabilities->server_capabilities) {
1869 DEBUG(0, ("The client capabilities don't match the server "
1870 "capabilities: local[0x%08X] remote[0x%08X]\n",
1871 state->creds->negotiate_flags,
1872 state->capabilities.server_capabilities));
1873 tevent_req_nterror(req,
1874 NT_STATUS_INVALID_NETWORK_RESPONSE);
1878 /* TODO: Add downgrade dectection. */
1880 tevent_req_done(req);
1884 static NTSTATUS rpc_bind_next_send(struct tevent_req *req,
1885 struct rpc_pipe_bind_state *state,
1886 DATA_BLOB *auth_token)
1888 struct pipe_auth_data *auth = state->cli->auth;
1889 struct tevent_req *subreq;
1892 /* Now prepare the alter context pdu. */
1893 data_blob_free(&state->rpc_out);
1895 status = create_rpc_alter_context(state,
1899 &state->cli->abstract_syntax,
1900 &state->cli->transfer_syntax,
1903 if (!NT_STATUS_IS_OK(status)) {
1907 subreq = rpc_api_pipe_send(state, state->ev, state->cli,
1908 &state->rpc_out, DCERPC_PKT_ALTER_RESP);
1909 if (subreq == NULL) {
1910 return NT_STATUS_NO_MEMORY;
1912 tevent_req_set_callback(subreq, rpc_pipe_bind_step_one_done, req);
1913 return NT_STATUS_OK;
1916 static NTSTATUS rpc_bind_finish_send(struct tevent_req *req,
1917 struct rpc_pipe_bind_state *state,
1918 DATA_BLOB *auth_token)
1920 struct pipe_auth_data *auth = state->cli->auth;
1921 struct tevent_req *subreq;
1924 state->auth3 = true;
1926 /* Now prepare the auth3 context pdu. */
1927 data_blob_free(&state->rpc_out);
1929 status = create_rpc_bind_auth3(state, state->cli,
1935 if (!NT_STATUS_IS_OK(status)) {
1939 subreq = rpc_api_pipe_send(state, state->ev, state->cli,
1940 &state->rpc_out, DCERPC_PKT_AUTH3);
1941 if (subreq == NULL) {
1942 return NT_STATUS_NO_MEMORY;
1944 tevent_req_set_callback(subreq, rpc_pipe_bind_step_one_done, req);
1945 return NT_STATUS_OK;
1948 NTSTATUS rpc_pipe_bind_recv(struct tevent_req *req)
1950 return tevent_req_simple_recv_ntstatus(req);
1953 NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
1954 struct pipe_auth_data *auth)
1956 TALLOC_CTX *frame = talloc_stackframe();
1957 struct tevent_context *ev;
1958 struct tevent_req *req;
1959 NTSTATUS status = NT_STATUS_OK;
1961 ev = samba_tevent_context_init(frame);
1963 status = NT_STATUS_NO_MEMORY;
1967 req = rpc_pipe_bind_send(frame, ev, cli, auth);
1969 status = NT_STATUS_NO_MEMORY;
1973 if (!tevent_req_poll(req, ev)) {
1974 status = map_nt_error_from_unix(errno);
1978 status = rpc_pipe_bind_recv(req);
1984 #define RPCCLI_DEFAULT_TIMEOUT 10000 /* 10 seconds. */
1986 unsigned int rpccli_set_timeout(struct rpc_pipe_client *rpc_cli,
1987 unsigned int timeout)
1991 if (rpc_cli->transport == NULL) {
1992 return RPCCLI_DEFAULT_TIMEOUT;
1995 if (rpc_cli->transport->set_timeout == NULL) {
1996 return RPCCLI_DEFAULT_TIMEOUT;
1999 old = rpc_cli->transport->set_timeout(rpc_cli->transport->priv, timeout);
2001 return RPCCLI_DEFAULT_TIMEOUT;
2007 bool rpccli_is_connected(struct rpc_pipe_client *rpc_cli)
2009 if (rpc_cli == NULL) {
2013 if (rpc_cli->transport == NULL) {
2017 return rpc_cli->transport->is_connected(rpc_cli->transport->priv);
2020 struct rpccli_bh_state {
2021 struct rpc_pipe_client *rpc_cli;
2024 static bool rpccli_bh_is_connected(struct dcerpc_binding_handle *h)
2026 struct rpccli_bh_state *hs = dcerpc_binding_handle_data(h,
2027 struct rpccli_bh_state);
2029 return rpccli_is_connected(hs->rpc_cli);
2032 static uint32_t rpccli_bh_set_timeout(struct dcerpc_binding_handle *h,
2035 struct rpccli_bh_state *hs = dcerpc_binding_handle_data(h,
2036 struct rpccli_bh_state);
2038 return rpccli_set_timeout(hs->rpc_cli, timeout);
2041 struct rpccli_bh_raw_call_state {
2047 static void rpccli_bh_raw_call_done(struct tevent_req *subreq);
2049 static struct tevent_req *rpccli_bh_raw_call_send(TALLOC_CTX *mem_ctx,
2050 struct tevent_context *ev,
2051 struct dcerpc_binding_handle *h,
2052 const struct GUID *object,
2055 const uint8_t *in_data,
2058 struct rpccli_bh_state *hs = dcerpc_binding_handle_data(h,
2059 struct rpccli_bh_state);
2060 struct tevent_req *req;
2061 struct rpccli_bh_raw_call_state *state;
2063 struct tevent_req *subreq;
2065 req = tevent_req_create(mem_ctx, &state,
2066 struct rpccli_bh_raw_call_state);
2070 state->in_data.data = discard_const_p(uint8_t, in_data);
2071 state->in_data.length = in_length;
2073 ok = rpccli_bh_is_connected(h);
2075 tevent_req_nterror(req, NT_STATUS_CONNECTION_DISCONNECTED);
2076 return tevent_req_post(req, ev);
2079 subreq = rpc_api_pipe_req_send(state, ev, hs->rpc_cli,
2080 opnum, &state->in_data);
2081 if (tevent_req_nomem(subreq, req)) {
2082 return tevent_req_post(req, ev);
2084 tevent_req_set_callback(subreq, rpccli_bh_raw_call_done, req);
2089 static void rpccli_bh_raw_call_done(struct tevent_req *subreq)
2091 struct tevent_req *req =
2092 tevent_req_callback_data(subreq,
2094 struct rpccli_bh_raw_call_state *state =
2095 tevent_req_data(req,
2096 struct rpccli_bh_raw_call_state);
2099 state->out_flags = 0;
2101 /* TODO: support bigendian responses */
2103 status = rpc_api_pipe_req_recv(subreq, state, &state->out_data);
2104 TALLOC_FREE(subreq);
2105 if (!NT_STATUS_IS_OK(status)) {
2106 tevent_req_nterror(req, status);
2110 tevent_req_done(req);
2113 static NTSTATUS rpccli_bh_raw_call_recv(struct tevent_req *req,
2114 TALLOC_CTX *mem_ctx,
2117 uint32_t *out_flags)
2119 struct rpccli_bh_raw_call_state *state =
2120 tevent_req_data(req,
2121 struct rpccli_bh_raw_call_state);
2124 if (tevent_req_is_nterror(req, &status)) {
2125 tevent_req_received(req);
2129 *out_data = talloc_move(mem_ctx, &state->out_data.data);
2130 *out_length = state->out_data.length;
2131 *out_flags = state->out_flags;
2132 tevent_req_received(req);
2133 return NT_STATUS_OK;
2136 struct rpccli_bh_disconnect_state {
2140 static struct tevent_req *rpccli_bh_disconnect_send(TALLOC_CTX *mem_ctx,
2141 struct tevent_context *ev,
2142 struct dcerpc_binding_handle *h)
2144 struct rpccli_bh_state *hs = dcerpc_binding_handle_data(h,
2145 struct rpccli_bh_state);
2146 struct tevent_req *req;
2147 struct rpccli_bh_disconnect_state *state;
2150 req = tevent_req_create(mem_ctx, &state,
2151 struct rpccli_bh_disconnect_state);
2156 ok = rpccli_bh_is_connected(h);
2158 tevent_req_nterror(req, NT_STATUS_CONNECTION_DISCONNECTED);
2159 return tevent_req_post(req, ev);
2163 * TODO: do a real async disconnect ...
2165 * For now the caller needs to free rpc_cli
2169 tevent_req_done(req);
2170 return tevent_req_post(req, ev);
2173 static NTSTATUS rpccli_bh_disconnect_recv(struct tevent_req *req)
2177 if (tevent_req_is_nterror(req, &status)) {
2178 tevent_req_received(req);
2182 tevent_req_received(req);
2183 return NT_STATUS_OK;
2186 static bool rpccli_bh_ref_alloc(struct dcerpc_binding_handle *h)
2191 static void rpccli_bh_do_ndr_print(struct dcerpc_binding_handle *h,
2193 const void *_struct_ptr,
2194 const struct ndr_interface_call *call)
2196 void *struct_ptr = discard_const(_struct_ptr);
2198 if (DEBUGLEVEL < 10) {
2202 if (ndr_flags & NDR_IN) {
2203 ndr_print_function_debug(call->ndr_print,
2208 if (ndr_flags & NDR_OUT) {
2209 ndr_print_function_debug(call->ndr_print,
2216 static const struct dcerpc_binding_handle_ops rpccli_bh_ops = {
2218 .is_connected = rpccli_bh_is_connected,
2219 .set_timeout = rpccli_bh_set_timeout,
2220 .raw_call_send = rpccli_bh_raw_call_send,
2221 .raw_call_recv = rpccli_bh_raw_call_recv,
2222 .disconnect_send = rpccli_bh_disconnect_send,
2223 .disconnect_recv = rpccli_bh_disconnect_recv,
2225 .ref_alloc = rpccli_bh_ref_alloc,
2226 .do_ndr_print = rpccli_bh_do_ndr_print,
2229 /* initialise a rpc_pipe_client binding handle */
2230 struct dcerpc_binding_handle *rpccli_bh_create(struct rpc_pipe_client *c)
2232 struct dcerpc_binding_handle *h;
2233 struct rpccli_bh_state *hs;
2235 h = dcerpc_binding_handle_create(c,
2240 struct rpccli_bh_state,
2250 NTSTATUS rpccli_ncalrpc_bind_data(TALLOC_CTX *mem_ctx,
2251 struct pipe_auth_data **presult)
2253 struct pipe_auth_data *result;
2255 result = talloc(mem_ctx, struct pipe_auth_data);
2256 if (result == NULL) {
2257 return NT_STATUS_NO_MEMORY;
2260 result->auth_type = DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM;
2261 result->auth_level = DCERPC_AUTH_LEVEL_CONNECT;
2263 result->user_name = talloc_strdup(result, "");
2264 result->domain = talloc_strdup(result, "");
2265 if ((result->user_name == NULL) || (result->domain == NULL)) {
2266 TALLOC_FREE(result);
2267 return NT_STATUS_NO_MEMORY;
2271 return NT_STATUS_OK;
2274 NTSTATUS rpccli_anon_bind_data(TALLOC_CTX *mem_ctx,
2275 struct pipe_auth_data **presult)
2277 struct pipe_auth_data *result;
2279 result = talloc(mem_ctx, struct pipe_auth_data);
2280 if (result == NULL) {
2281 return NT_STATUS_NO_MEMORY;
2284 result->auth_type = DCERPC_AUTH_TYPE_NONE;
2285 result->auth_level = DCERPC_AUTH_LEVEL_NONE;
2287 result->user_name = talloc_strdup(result, "");
2288 result->domain = talloc_strdup(result, "");
2289 if ((result->user_name == NULL) || (result->domain == NULL)) {
2290 TALLOC_FREE(result);
2291 return NT_STATUS_NO_MEMORY;
2295 return NT_STATUS_OK;
2298 static NTSTATUS rpccli_generic_bind_data(TALLOC_CTX *mem_ctx,
2299 enum dcerpc_AuthType auth_type,
2300 enum dcerpc_AuthLevel auth_level,
2302 const char *target_service,
2304 const char *username,
2305 const char *password,
2306 enum credentials_use_kerberos use_kerberos,
2307 struct pipe_auth_data **presult)
2309 struct auth_generic_state *auth_generic_ctx;
2310 struct pipe_auth_data *result;
2313 result = talloc(mem_ctx, struct pipe_auth_data);
2314 if (result == NULL) {
2315 return NT_STATUS_NO_MEMORY;
2318 result->auth_type = auth_type;
2319 result->auth_level = auth_level;
2321 result->user_name = talloc_strdup(result, username);
2322 result->domain = talloc_strdup(result, domain);
2323 if ((result->user_name == NULL) || (result->domain == NULL)) {
2324 status = NT_STATUS_NO_MEMORY;
2328 status = auth_generic_client_prepare(result,
2330 if (!NT_STATUS_IS_OK(status)) {
2334 status = auth_generic_set_username(auth_generic_ctx, username);
2335 if (!NT_STATUS_IS_OK(status)) {
2339 status = auth_generic_set_domain(auth_generic_ctx, domain);
2340 if (!NT_STATUS_IS_OK(status)) {
2344 status = auth_generic_set_password(auth_generic_ctx, password);
2345 if (!NT_STATUS_IS_OK(status)) {
2349 status = gensec_set_target_service(auth_generic_ctx->gensec_security, target_service);
2350 if (!NT_STATUS_IS_OK(status)) {
2354 status = gensec_set_target_hostname(auth_generic_ctx->gensec_security, server);
2355 if (!NT_STATUS_IS_OK(status)) {
2359 cli_credentials_set_kerberos_state(auth_generic_ctx->credentials, use_kerberos);
2361 status = auth_generic_client_start_by_authtype(auth_generic_ctx, auth_type, auth_level);
2362 if (!NT_STATUS_IS_OK(status)) {
2366 result->auth_ctx = talloc_move(result, &auth_generic_ctx->gensec_security);
2367 talloc_free(auth_generic_ctx);
2369 return NT_STATUS_OK;
2372 TALLOC_FREE(result);
2376 static NTSTATUS rpccli_schannel_bind_data(TALLOC_CTX *mem_ctx,
2378 enum dcerpc_AuthLevel auth_level,
2379 struct netlogon_creds_CredentialState *creds,
2380 struct pipe_auth_data **presult)
2382 struct schannel_state *schannel_auth;
2383 struct pipe_auth_data *result;
2385 result = talloc(mem_ctx, struct pipe_auth_data);
2386 if (result == NULL) {
2387 return NT_STATUS_NO_MEMORY;
2390 result->auth_type = DCERPC_AUTH_TYPE_SCHANNEL;
2391 result->auth_level = auth_level;
2393 result->user_name = talloc_strdup(result, "");
2394 result->domain = talloc_strdup(result, domain);
2395 if ((result->user_name == NULL) || (result->domain == NULL)) {
2399 schannel_auth = talloc_zero(result, struct schannel_state);
2400 if (schannel_auth == NULL) {
2404 schannel_auth->state = SCHANNEL_STATE_START;
2405 schannel_auth->initiator = true;
2406 schannel_auth->creds = netlogon_creds_copy(schannel_auth, creds);
2407 if (schannel_auth->creds == NULL) {
2411 result->auth_ctx = schannel_auth;
2413 return NT_STATUS_OK;
2416 TALLOC_FREE(result);
2417 return NT_STATUS_NO_MEMORY;
2421 * Create an rpc pipe client struct, connecting to a tcp port.
2423 static NTSTATUS rpc_pipe_open_tcp_port(TALLOC_CTX *mem_ctx, const char *host,
2424 const struct sockaddr_storage *ss_addr,
2426 const struct ndr_interface_table *table,
2427 struct rpc_pipe_client **presult)
2429 struct rpc_pipe_client *result;
2430 struct sockaddr_storage addr;
2434 result = talloc_zero(mem_ctx, struct rpc_pipe_client);
2435 if (result == NULL) {
2436 return NT_STATUS_NO_MEMORY;
2439 result->abstract_syntax = table->syntax_id;
2440 result->transfer_syntax = ndr_transfer_syntax_ndr;
2442 result->desthost = talloc_strdup(result, host);
2443 result->srv_name_slash = talloc_asprintf_strupper_m(
2444 result, "\\\\%s", result->desthost);
2445 if ((result->desthost == NULL) || (result->srv_name_slash == NULL)) {
2446 status = NT_STATUS_NO_MEMORY;
2450 result->max_xmit_frag = RPC_MAX_PDU_FRAG_LEN;
2451 result->max_recv_frag = RPC_MAX_PDU_FRAG_LEN;
2453 if (ss_addr == NULL) {
2454 if (!resolve_name(host, &addr, NBT_NAME_SERVER, false)) {
2455 status = NT_STATUS_NOT_FOUND;
2462 status = open_socket_out(&addr, port, 60*1000, &fd);
2463 if (!NT_STATUS_IS_OK(status)) {
2466 set_socket_options(fd, lp_socket_options());
2468 status = rpc_transport_sock_init(result, fd, &result->transport);
2469 if (!NT_STATUS_IS_OK(status)) {
2474 result->transport->transport = NCACN_IP_TCP;
2476 result->binding_handle = rpccli_bh_create(result);
2477 if (result->binding_handle == NULL) {
2478 TALLOC_FREE(result);
2479 return NT_STATUS_NO_MEMORY;
2483 return NT_STATUS_OK;
2486 TALLOC_FREE(result);
2491 * Determine the tcp port on which a dcerpc interface is listening
2492 * for the ncacn_ip_tcp transport via the endpoint mapper of the
2495 static NTSTATUS rpc_pipe_get_tcp_port(const char *host,
2496 const struct sockaddr_storage *addr,
2497 const struct ndr_interface_table *table,
2501 struct rpc_pipe_client *epm_pipe = NULL;
2502 struct dcerpc_binding_handle *epm_handle = NULL;
2503 struct pipe_auth_data *auth = NULL;
2504 struct dcerpc_binding *map_binding = NULL;
2505 struct dcerpc_binding *res_binding = NULL;
2506 struct epm_twr_t *map_tower = NULL;
2507 struct epm_twr_t *res_towers = NULL;
2508 struct policy_handle *entry_handle = NULL;
2509 uint32_t num_towers = 0;
2510 uint32_t max_towers = 1;
2511 struct epm_twr_p_t towers;
2512 TALLOC_CTX *tmp_ctx = talloc_stackframe();
2513 uint32_t result = 0;
2515 if (pport == NULL) {
2516 status = NT_STATUS_INVALID_PARAMETER;
2520 if (ndr_syntax_id_equal(&table->syntax_id,
2521 &ndr_table_epmapper.syntax_id)) {
2523 return NT_STATUS_OK;
2526 /* open the connection to the endpoint mapper */
2527 status = rpc_pipe_open_tcp_port(tmp_ctx, host, addr, 135,
2528 &ndr_table_epmapper,
2531 if (!NT_STATUS_IS_OK(status)) {
2534 epm_handle = epm_pipe->binding_handle;
2536 status = rpccli_anon_bind_data(tmp_ctx, &auth);
2537 if (!NT_STATUS_IS_OK(status)) {
2541 status = rpc_pipe_bind(epm_pipe, auth);
2542 if (!NT_STATUS_IS_OK(status)) {
2546 /* create tower for asking the epmapper */
2548 map_binding = talloc_zero(tmp_ctx, struct dcerpc_binding);
2549 if (map_binding == NULL) {
2550 status = NT_STATUS_NO_MEMORY;
2554 map_binding->transport = NCACN_IP_TCP;
2555 map_binding->object = table->syntax_id;
2556 map_binding->host = host; /* needed? */
2557 map_binding->endpoint = "0"; /* correct? needed? */
2559 map_tower = talloc_zero(tmp_ctx, struct epm_twr_t);
2560 if (map_tower == NULL) {
2561 status = NT_STATUS_NO_MEMORY;
2565 status = dcerpc_binding_build_tower(tmp_ctx, map_binding,
2566 &(map_tower->tower));
2567 if (!NT_STATUS_IS_OK(status)) {
2571 /* allocate further parameters for the epm_Map call */
2573 res_towers = talloc_array(tmp_ctx, struct epm_twr_t, max_towers);
2574 if (res_towers == NULL) {
2575 status = NT_STATUS_NO_MEMORY;
2578 towers.twr = res_towers;
2580 entry_handle = talloc_zero(tmp_ctx, struct policy_handle);
2581 if (entry_handle == NULL) {
2582 status = NT_STATUS_NO_MEMORY;
2586 /* ask the endpoint mapper for the port */
2588 status = dcerpc_epm_Map(epm_handle,
2590 discard_const_p(struct GUID,
2591 &(table->syntax_id.uuid)),
2599 if (!NT_STATUS_IS_OK(status)) {
2603 if (result != EPMAPPER_STATUS_OK) {
2604 status = NT_STATUS_UNSUCCESSFUL;
2608 if (num_towers != 1) {
2609 status = NT_STATUS_UNSUCCESSFUL;
2613 /* extract the port from the answer */
2615 status = dcerpc_binding_from_tower(tmp_ctx,
2616 &(towers.twr->tower),
2618 if (!NT_STATUS_IS_OK(status)) {
2622 /* are further checks here necessary? */
2623 if (res_binding->transport != NCACN_IP_TCP) {
2624 status = NT_STATUS_UNSUCCESSFUL;
2628 *pport = (uint16_t)atoi(res_binding->endpoint);
2631 TALLOC_FREE(tmp_ctx);
2636 * Create a rpc pipe client struct, connecting to a host via tcp.
2637 * The port is determined by asking the endpoint mapper on the given
2640 NTSTATUS rpc_pipe_open_tcp(TALLOC_CTX *mem_ctx, const char *host,
2641 const struct sockaddr_storage *addr,
2642 const struct ndr_interface_table *table,
2643 struct rpc_pipe_client **presult)
2648 status = rpc_pipe_get_tcp_port(host, addr, table, &port);
2649 if (!NT_STATUS_IS_OK(status)) {
2653 return rpc_pipe_open_tcp_port(mem_ctx, host, addr, port,
2657 /********************************************************************
2658 Create a rpc pipe client struct, connecting to a unix domain socket
2659 ********************************************************************/
2660 NTSTATUS rpc_pipe_open_ncalrpc(TALLOC_CTX *mem_ctx, const char *socket_path,
2661 const struct ndr_interface_table *table,
2662 struct rpc_pipe_client **presult)
2664 struct rpc_pipe_client *result;
2665 struct sockaddr_un addr;
2670 result = talloc_zero(mem_ctx, struct rpc_pipe_client);
2671 if (result == NULL) {
2672 return NT_STATUS_NO_MEMORY;
2675 result->abstract_syntax = table->syntax_id;
2676 result->transfer_syntax = ndr_transfer_syntax_ndr;
2678 result->desthost = get_myname(result);
2679 result->srv_name_slash = talloc_asprintf_strupper_m(
2680 result, "\\\\%s", result->desthost);
2681 if ((result->desthost == NULL) || (result->srv_name_slash == NULL)) {
2682 status = NT_STATUS_NO_MEMORY;
2686 result->max_xmit_frag = RPC_MAX_PDU_FRAG_LEN;
2687 result->max_recv_frag = RPC_MAX_PDU_FRAG_LEN;
2689 fd = socket(AF_UNIX, SOCK_STREAM, 0);
2691 status = map_nt_error_from_unix(errno);
2696 addr.sun_family = AF_UNIX;
2697 strlcpy(addr.sun_path, socket_path, sizeof(addr.sun_path));
2698 salen = sizeof(struct sockaddr_un);
2700 if (connect(fd, (struct sockaddr *)(void *)&addr, salen) == -1) {
2701 DEBUG(0, ("connect(%s) failed: %s\n", socket_path,
2704 return map_nt_error_from_unix(errno);
2707 status = rpc_transport_sock_init(result, fd, &result->transport);
2708 if (!NT_STATUS_IS_OK(status)) {
2713 result->transport->transport = NCALRPC;
2715 result->binding_handle = rpccli_bh_create(result);
2716 if (result->binding_handle == NULL) {
2717 TALLOC_FREE(result);
2718 return NT_STATUS_NO_MEMORY;
2722 return NT_STATUS_OK;
2725 TALLOC_FREE(result);
2729 struct rpc_pipe_client_np_ref {
2730 struct cli_state *cli;
2731 struct rpc_pipe_client *pipe;
2734 static int rpc_pipe_client_np_ref_destructor(struct rpc_pipe_client_np_ref *np_ref)
2736 DLIST_REMOVE(np_ref->cli->pipe_list, np_ref->pipe);
2740 /****************************************************************************
2741 Open a named pipe over SMB to a remote server.
2743 * CAVEAT CALLER OF THIS FUNCTION:
2744 * The returned rpc_pipe_client saves a copy of the cli_state cli pointer,
2745 * so be sure that this function is called AFTER any structure (vs pointer)
2746 * assignment of the cli. In particular, libsmbclient does structure
2747 * assignments of cli, which invalidates the data in the returned
2748 * rpc_pipe_client if this function is called before the structure assignment
2751 ****************************************************************************/
2753 static NTSTATUS rpc_pipe_open_np(struct cli_state *cli,
2754 const struct ndr_interface_table *table,
2755 struct rpc_pipe_client **presult)
2757 struct rpc_pipe_client *result;
2759 struct rpc_pipe_client_np_ref *np_ref;
2761 /* sanity check to protect against crashes */
2764 return NT_STATUS_INVALID_HANDLE;
2767 result = talloc_zero(NULL, struct rpc_pipe_client);
2768 if (result == NULL) {
2769 return NT_STATUS_NO_MEMORY;
2772 result->abstract_syntax = table->syntax_id;
2773 result->transfer_syntax = ndr_transfer_syntax_ndr;
2774 result->desthost = talloc_strdup(result, smbXcli_conn_remote_name(cli->conn));
2775 result->srv_name_slash = talloc_asprintf_strupper_m(
2776 result, "\\\\%s", result->desthost);
2778 result->max_xmit_frag = RPC_MAX_PDU_FRAG_LEN;
2779 result->max_recv_frag = RPC_MAX_PDU_FRAG_LEN;
2781 if ((result->desthost == NULL) || (result->srv_name_slash == NULL)) {
2782 TALLOC_FREE(result);
2783 return NT_STATUS_NO_MEMORY;
2786 status = rpc_transport_np_init(result, cli, table,
2787 &result->transport);
2788 if (!NT_STATUS_IS_OK(status)) {
2789 TALLOC_FREE(result);
2793 result->transport->transport = NCACN_NP;
2795 np_ref = talloc(result->transport, struct rpc_pipe_client_np_ref);
2796 if (np_ref == NULL) {
2797 TALLOC_FREE(result);
2798 return NT_STATUS_NO_MEMORY;
2801 np_ref->pipe = result;
2803 DLIST_ADD(np_ref->cli->pipe_list, np_ref->pipe);
2804 talloc_set_destructor(np_ref, rpc_pipe_client_np_ref_destructor);
2806 result->binding_handle = rpccli_bh_create(result);
2807 if (result->binding_handle == NULL) {
2808 TALLOC_FREE(result);
2809 return NT_STATUS_NO_MEMORY;
2813 return NT_STATUS_OK;
2816 /****************************************************************************
2817 Open a pipe to a remote server.
2818 ****************************************************************************/
2820 static NTSTATUS cli_rpc_pipe_open(struct cli_state *cli,
2821 enum dcerpc_transport_t transport,
2822 const struct ndr_interface_table *table,
2823 struct rpc_pipe_client **presult)
2825 switch (transport) {
2827 return rpc_pipe_open_tcp(NULL,
2828 smbXcli_conn_remote_name(cli->conn),
2829 smbXcli_conn_remote_sockaddr(cli->conn),
2832 return rpc_pipe_open_np(cli, table, presult);
2834 return NT_STATUS_NOT_IMPLEMENTED;
2838 /****************************************************************************
2839 Open a named pipe to an SMB server and bind anonymously.
2840 ****************************************************************************/
2842 NTSTATUS cli_rpc_pipe_open_noauth_transport(struct cli_state *cli,
2843 enum dcerpc_transport_t transport,
2844 const struct ndr_interface_table *table,
2845 struct rpc_pipe_client **presult)
2847 struct rpc_pipe_client *result;
2848 struct pipe_auth_data *auth;
2851 status = cli_rpc_pipe_open(cli, transport, table, &result);
2852 if (!NT_STATUS_IS_OK(status)) {
2856 status = rpccli_anon_bind_data(result, &auth);
2857 if (!NT_STATUS_IS_OK(status)) {
2858 DEBUG(0, ("rpccli_anon_bind_data returned %s\n",
2859 nt_errstr(status)));
2860 TALLOC_FREE(result);
2865 * This is a bit of an abstraction violation due to the fact that an
2866 * anonymous bind on an authenticated SMB inherits the user/domain
2867 * from the enclosing SMB creds
2870 TALLOC_FREE(auth->user_name);
2871 TALLOC_FREE(auth->domain);
2873 auth->user_name = talloc_strdup(auth, cli->user_name);
2874 auth->domain = talloc_strdup(auth, cli->domain);
2876 if (transport == NCACN_NP) {
2877 struct smbXcli_session *session;
2879 if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
2880 session = cli->smb2.session;
2882 session = cli->smb1.session;
2885 status = smbXcli_session_application_key(session, auth,
2886 &auth->transport_session_key);
2887 if (!NT_STATUS_IS_OK(status)) {
2888 auth->transport_session_key = data_blob_null;
2892 if ((auth->user_name == NULL) || (auth->domain == NULL)) {
2893 TALLOC_FREE(result);
2894 return NT_STATUS_NO_MEMORY;
2897 status = rpc_pipe_bind(result, auth);
2898 if (!NT_STATUS_IS_OK(status)) {
2900 if (ndr_syntax_id_equal(&table->syntax_id,
2901 &ndr_table_dssetup.syntax_id)) {
2902 /* non AD domains just don't have this pipe, avoid
2903 * level 0 statement in that case - gd */
2906 DEBUG(lvl, ("cli_rpc_pipe_open_noauth: rpc_pipe_bind for pipe "
2907 "%s failed with error %s\n",
2908 get_pipe_name_from_syntax(talloc_tos(),
2910 nt_errstr(status) ));
2911 TALLOC_FREE(result);
2915 DEBUG(10,("cli_rpc_pipe_open_noauth: opened pipe %s to machine "
2916 "%s and bound anonymously.\n",
2917 get_pipe_name_from_syntax(talloc_tos(), &table->syntax_id),
2921 return NT_STATUS_OK;
2924 /****************************************************************************
2925 ****************************************************************************/
2927 NTSTATUS cli_rpc_pipe_open_noauth(struct cli_state *cli,
2928 const struct ndr_interface_table *table,
2929 struct rpc_pipe_client **presult)
2931 return cli_rpc_pipe_open_noauth_transport(cli, NCACN_NP,
2935 /****************************************************************************
2936 Open a named pipe to an SMB server and bind using the mech specified
2937 ****************************************************************************/
2939 NTSTATUS cli_rpc_pipe_open_generic_auth(struct cli_state *cli,
2940 const struct ndr_interface_table *table,
2941 enum dcerpc_transport_t transport,
2942 enum dcerpc_AuthType auth_type,
2943 enum dcerpc_AuthLevel auth_level,
2946 const char *username,
2947 const char *password,
2948 struct rpc_pipe_client **presult)
2950 struct rpc_pipe_client *result;
2951 struct pipe_auth_data *auth = NULL;
2952 const char *target_service = table->authservices->names[0];
2956 status = cli_rpc_pipe_open(cli, transport, table, &result);
2957 if (!NT_STATUS_IS_OK(status)) {
2961 status = rpccli_generic_bind_data(result,
2962 auth_type, auth_level,
2963 server, target_service,
2964 domain, username, password,
2965 CRED_AUTO_USE_KERBEROS,
2967 if (!NT_STATUS_IS_OK(status)) {
2968 DEBUG(0, ("rpccli_generic_bind_data returned %s\n",
2969 nt_errstr(status)));
2973 status = rpc_pipe_bind(result, auth);
2974 if (!NT_STATUS_IS_OK(status)) {
2975 DEBUG(0, ("cli_rpc_pipe_open_generic_auth: cli_rpc_pipe_bind failed with error %s\n",
2976 nt_errstr(status) ));
2980 DEBUG(10,("cli_rpc_pipe_open_generic_auth: opened pipe %s to "
2981 "machine %s and bound as user %s\\%s.\n", table->name,
2982 result->desthost, domain, username));
2985 return NT_STATUS_OK;
2989 TALLOC_FREE(result);
2993 /****************************************************************************
2995 Open a named pipe to an SMB server and bind using schannel (bind type 68)
2996 using session_key. sign and seal.
2998 The *pdc will be stolen onto this new pipe
2999 ****************************************************************************/
3001 NTSTATUS cli_rpc_pipe_open_schannel_with_key(struct cli_state *cli,
3002 const struct ndr_interface_table *table,
3003 enum dcerpc_transport_t transport,
3004 enum dcerpc_AuthLevel auth_level,
3006 struct netlogon_creds_CredentialState **pdc,
3007 struct rpc_pipe_client **presult)
3009 struct rpc_pipe_client *result;
3010 struct pipe_auth_data *auth;
3013 status = cli_rpc_pipe_open(cli, transport, table, &result);
3014 if (!NT_STATUS_IS_OK(status)) {
3018 status = rpccli_schannel_bind_data(result, domain, auth_level,
3020 if (!NT_STATUS_IS_OK(status)) {
3021 DEBUG(0, ("rpccli_schannel_bind_data returned %s\n",
3022 nt_errstr(status)));
3023 TALLOC_FREE(result);
3027 status = rpc_pipe_bind(result, auth);
3028 if (!NT_STATUS_IS_OK(status)) {
3029 DEBUG(0, ("cli_rpc_pipe_open_schannel_with_key: "
3030 "cli_rpc_pipe_bind failed with error %s\n",
3031 nt_errstr(status) ));
3032 TALLOC_FREE(result);
3037 * The credentials on a new netlogon pipe are the ones we are passed
3038 * in - copy them over
3040 if (result->dc == NULL) {
3041 result->dc = netlogon_creds_copy(result, *pdc);
3042 if (result->dc == NULL) {
3043 TALLOC_FREE(result);
3044 return NT_STATUS_NO_MEMORY;
3048 DEBUG(10,("cli_rpc_pipe_open_schannel_with_key: opened pipe %s to machine %s "
3049 "for domain %s and bound using schannel.\n",
3050 get_pipe_name_from_syntax(talloc_tos(), &table->syntax_id),
3051 result->desthost, domain));
3054 return NT_STATUS_OK;
3057 NTSTATUS cli_rpc_pipe_open_spnego(struct cli_state *cli,
3058 const struct ndr_interface_table *table,
3059 enum dcerpc_transport_t transport,
3061 enum dcerpc_AuthLevel auth_level,
3064 const char *username,
3065 const char *password,
3066 struct rpc_pipe_client **presult)
3068 struct rpc_pipe_client *result;
3069 struct pipe_auth_data *auth = NULL;
3070 const char *target_service = table->authservices->names[0];
3073 enum credentials_use_kerberos use_kerberos;
3075 if (strcmp(oid, GENSEC_OID_KERBEROS5) == 0) {
3076 use_kerberos = CRED_MUST_USE_KERBEROS;
3077 } else if (strcmp(oid, GENSEC_OID_NTLMSSP) == 0) {
3078 use_kerberos = CRED_DONT_USE_KERBEROS;
3080 return NT_STATUS_INVALID_PARAMETER;
3083 status = cli_rpc_pipe_open(cli, transport, table, &result);
3084 if (!NT_STATUS_IS_OK(status)) {
3088 status = rpccli_generic_bind_data(result,
3089 DCERPC_AUTH_TYPE_SPNEGO, auth_level,
3090 server, target_service,
3091 domain, username, password,
3094 if (!NT_STATUS_IS_OK(status)) {
3095 DEBUG(0, ("rpccli_generic_bind_data returned %s\n",
3096 nt_errstr(status)));
3100 status = rpc_pipe_bind(result, auth);
3101 if (!NT_STATUS_IS_OK(status)) {
3102 DEBUG(0, ("cli_rpc_pipe_open_spnego: cli_rpc_pipe_bind failed with error %s\n",
3103 nt_errstr(status) ));
3107 DEBUG(10,("cli_rpc_pipe_open_spnego: opened pipe %s to "
3108 "machine %s.\n", table->name,
3112 return NT_STATUS_OK;
3116 TALLOC_FREE(result);
3120 NTSTATUS cli_get_session_key(TALLOC_CTX *mem_ctx,
3121 struct rpc_pipe_client *cli,
3122 DATA_BLOB *session_key)
3125 struct pipe_auth_data *a;
3126 struct schannel_state *schannel_auth;
3127 struct gensec_security *gensec_security;
3128 DATA_BLOB sk = data_blob_null;
3129 bool make_dup = false;
3131 if (!session_key || !cli) {
3132 return NT_STATUS_INVALID_PARAMETER;
3138 return NT_STATUS_INVALID_PARAMETER;
3141 switch (cli->auth->auth_type) {
3142 case DCERPC_AUTH_TYPE_SCHANNEL:
3143 schannel_auth = talloc_get_type_abort(a->auth_ctx,
3144 struct schannel_state);
3145 sk = data_blob_const(schannel_auth->creds->session_key, 16);
3148 case DCERPC_AUTH_TYPE_SPNEGO:
3149 case DCERPC_AUTH_TYPE_NTLMSSP:
3150 case DCERPC_AUTH_TYPE_KRB5:
3151 gensec_security = talloc_get_type_abort(a->auth_ctx,
3152 struct gensec_security);
3153 status = gensec_session_key(gensec_security, mem_ctx, &sk);
3154 if (!NT_STATUS_IS_OK(status)) {
3159 case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
3160 case DCERPC_AUTH_TYPE_NONE:
3161 sk = data_blob_const(a->transport_session_key.data,
3162 a->transport_session_key.length);
3170 return NT_STATUS_NO_USER_SESSION_KEY;
3174 *session_key = data_blob_dup_talloc(mem_ctx, sk);
3179 return NT_STATUS_OK;