2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Copyright (C) Andrew Tridgell 1992-1998,
5 * Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
6 * Copyright (C) Paul Ashton 1998.
7 * Copyright (C) Jeremy Allison 1999.
8 * Copyright (C) Andrew Bartlett 2003.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #define DBGC_CLASS DBGC_RPC_CLI
30 extern struct pipe_id_info pipe_names
[];
32 /* convert pipe auth flags into the RPC auth type and level */
34 void get_auth_type_level(int pipe_auth_flags
, int *auth_type
, int *auth_level
)
38 if (pipe_auth_flags
& AUTH_PIPE_SEAL
) {
39 *auth_level
= RPC_PIPE_AUTH_SEAL_LEVEL
;
40 } else if (pipe_auth_flags
& AUTH_PIPE_SIGN
) {
41 *auth_level
= RPC_PIPE_AUTH_SIGN_LEVEL
;
44 if (pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
45 *auth_type
= NETSEC_AUTH_TYPE
;
46 } else if (pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
47 *auth_type
= NTLMSSP_AUTH_TYPE
;
51 /********************************************************************
53 ********************************************************************/
55 static uint32
get_rpc_call_id(void)
57 static uint32 call_id
= 0;
61 /*******************************************************************
62 Use SMBreadX to get rest of one fragment's worth of rpc data.
63 ********************************************************************/
65 static BOOL
rpc_read(struct cli_state
*cli
, int pipe_idx
, prs_struct
*rdata
, uint32 data_to_read
, uint32
*rdata_offset
)
67 size_t size
= (size_t)cli
->max_recv_frag
;
68 int stream_offset
= 0;
71 int extra_data_size
= ((int)*rdata_offset
) + ((int)data_to_read
) - (int)prs_data_size(rdata
);
73 DEBUG(5,("rpc_read: data_to_read: %u rdata offset: %u extra_data_size: %d\n",
74 (int)data_to_read
, (unsigned int)*rdata_offset
, extra_data_size
));
77 * Grow the buffer if needed to accommodate the data to be read.
80 if (extra_data_size
> 0) {
81 if(!prs_force_grow(rdata
, (uint32
)extra_data_size
)) {
82 DEBUG(0,("rpc_read: Failed to grow parse struct by %d bytes.\n", extra_data_size
));
85 DEBUG(5,("rpc_read: grew buffer by %d bytes to %u\n", extra_data_size
, prs_data_size(rdata
) ));
88 pdata
= prs_data_p(rdata
) + *rdata_offset
;
90 do /* read data using SMBreadX */
95 if (size
> (size_t)data_to_read
)
96 size
= (size_t)data_to_read
;
98 num_read
= (int)cli_read(cli
, cli
->nt_pipe_fnum
[pipe_idx
], pdata
, (off_t
)stream_offset
, size
);
100 DEBUG(5,("rpc_read: num_read = %d, read offset: %d, to read: %d\n",
101 num_read
, stream_offset
, data_to_read
));
103 if (cli_is_dos_error(cli
)) {
104 cli_dos_error(cli
, &eclass
, &ecode
);
105 if (eclass
!= ERRDOS
&& ecode
!= ERRmoredata
) {
106 DEBUG(0,("rpc_read: Error %d/%u in cli_read\n",
107 eclass
, (unsigned int)ecode
));
112 data_to_read
-= num_read
;
113 stream_offset
+= num_read
;
116 } while (num_read
> 0 && data_to_read
> 0);
117 /* && err == (0x80000000 | STATUS_BUFFER_OVERFLOW)); */
120 * Update the current offset into rdata by the amount read.
122 *rdata_offset
+= stream_offset
;
127 /****************************************************************************
128 Checks the header. This will set the endian bit in the rdata prs_struct. JRA.
129 ****************************************************************************/
131 static BOOL
rpc_check_hdr(prs_struct
*rdata
, RPC_HDR
*rhdr
,
132 BOOL
*first
, BOOL
*last
, uint32
*len
)
134 DEBUG(5,("rpc_check_hdr: rdata->data_size = %u\n", (uint32
)prs_data_size(rdata
) ));
136 /* Next call sets endian bit. */
138 if(!smb_io_rpc_hdr("rpc_hdr ", rhdr
, rdata
, 0)) {
139 DEBUG(0,("rpc_check_hdr: Failed to unmarshall RPC_HDR.\n"));
143 if (prs_offset(rdata
) != RPC_HEADER_LEN
) {
144 DEBUG(0,("rpc_check_hdr: offset was %x, should be %x.\n", prs_offset(rdata
), RPC_HEADER_LEN
));
148 (*first
) = ((rhdr
->flags
& RPC_FLG_FIRST
) != 0);
149 (*last
) = ((rhdr
->flags
& RPC_FLG_LAST
) != 0);
150 (*len
) = (uint32
)rhdr
->frag_len
- prs_data_size(rdata
);
152 return (rhdr
->pkt_type
!= RPC_FAULT
);
155 /****************************************************************************
156 Verify data on an rpc pipe.
157 The VERIFY & SEAL code is only executed on packets that look like this :
159 Request/Response PDU's look like the following...
161 |<------------------PDU len----------------------------------------------->|
162 |<-HDR_LEN-->|<--REQ LEN------>|.............|<-AUTH_HDRLEN->|<-AUTH_LEN-->|
164 +------------+-----------------+-------------+---------------+-------------+
165 | RPC HEADER | REQ/RESP HEADER | DATA ...... | AUTH_HDR | AUTH DATA |
166 +------------+-----------------+-------------+---------------+-------------+
168 Never on bind requests/responses.
169 ****************************************************************************/
171 static BOOL
rpc_auth_pipe(struct cli_state
*cli
, prs_struct
*rdata
,
172 uint32 fragment_start
, int len
, int auth_len
, uint8 pkt_type
,
173 int *pauth_padding_len
)
177 * The following is that length of the data we must sign or seal.
178 * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
179 * preceeding the auth_data.
182 int data_len
= len
- RPC_HEADER_LEN
- RPC_HDR_RESP_LEN
- RPC_HDR_AUTH_LEN
- auth_len
;
185 * The start of the data to sign/seal is just after the RPC headers.
187 char *reply_data
= prs_data_p(rdata
) + fragment_start
+ RPC_HEADER_LEN
+ RPC_HDR_REQ_LEN
;
189 RPC_HDR_AUTH rhdr_auth
;
191 char *dp
= prs_data_p(rdata
) + fragment_start
+ len
-
192 RPC_HDR_AUTH_LEN
- auth_len
;
193 prs_struct auth_verf
;
195 *pauth_padding_len
= 0;
198 if (cli
->pipe_auth_flags
== 0) {
199 /* move along, nothing to see here */
203 DEBUG(2, ("No authenticaton header recienved on reply, but this pipe is authenticated\n"));
207 DEBUG(5,("rpc_auth_pipe: pkt_type: %d len: %d auth_len: %d NTLMSSP %s schannel %s sign %s seal %s \n",
208 pkt_type
, len
, auth_len
,
209 BOOLSTR(cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
),
210 BOOLSTR(cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
),
211 BOOLSTR(cli
->pipe_auth_flags
& AUTH_PIPE_SIGN
),
212 BOOLSTR(cli
->pipe_auth_flags
& AUTH_PIPE_SEAL
)));
214 if (dp
- prs_data_p(rdata
) > prs_data_size(rdata
)) {
215 DEBUG(0,("rpc_auth_pipe: schannel auth data > data size !\n"));
219 DEBUG(10,("rpc_auth_pipe: packet:\n"));
220 dump_data(100, dp
, auth_len
);
222 prs_init(&auth_verf
, 0, cli
->mem_ctx
, UNMARSHALL
);
224 /* The endinness must be preserved. JRA. */
225 prs_set_endian_data( &auth_verf
, rdata
->bigendian_data
);
227 /* Point this new parse struct at the auth section of the main
228 parse struct - rather than copying it. Avoids needing to
229 free it on every error
231 prs_give_memory(&auth_verf
, dp
, RPC_HDR_AUTH_LEN
+ auth_len
, False
/* not dynamic */);
232 prs_set_offset(&auth_verf
, 0);
237 if (!smb_io_rpc_hdr_auth("auth_hdr", &rhdr_auth
, &auth_verf
, 0)) {
238 DEBUG(0, ("rpc_auth_pipe: Could not parse auth header\n"));
242 /* Let the caller know how much padding at the end of the data */
243 *pauth_padding_len
= rhdr_auth
.padding
;
245 /* Check it's the type of reply we were expecting to decode */
247 get_auth_type_level(cli
->pipe_auth_flags
, &auth_type
, &auth_level
);
248 if (rhdr_auth
.auth_type
!= auth_type
) {
249 DEBUG(0, ("BAD auth type %d (should be %d)\n",
250 rhdr_auth
.auth_type
, auth_type
));
254 if (rhdr_auth
.auth_level
!= auth_level
) {
255 DEBUG(0, ("BAD auth level %d (should be %d)\n",
256 rhdr_auth
.auth_level
, auth_level
));
261 if (pkt_type
== RPC_BINDACK
) {
262 if (cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
263 /* copy the next auth_len bytes into a buffer for
266 DATA_BLOB ntlmssp_verf
= data_blob(NULL
, auth_len
);
269 /* save the reply away, for use a little later */
270 prs_copy_data_out((char *)ntlmssp_verf
.data
, &auth_verf
, auth_len
);
272 store_ok
= (NT_STATUS_IS_OK(ntlmssp_store_response(cli
->ntlmssp_pipe_state
,
275 data_blob_free(&ntlmssp_verf
);
278 else if (cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
279 /* nothing to do here - we don't seem to be able to
280 validate the bindack based on VL's comments */
285 if (cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
288 if ((cli
->pipe_auth_flags
& AUTH_PIPE_SIGN
) ||
289 (cli
->pipe_auth_flags
& AUTH_PIPE_SEAL
)) {
290 if (auth_len
!= RPC_AUTH_NTLMSSP_CHK_LEN
) {
291 DEBUG(0,("rpc_auth_pipe: wrong ntlmssp auth len %d\n", auth_len
));
294 sig
= data_blob(NULL
, auth_len
);
295 prs_copy_data_out((char *)sig
.data
, &auth_verf
, auth_len
);
299 * Unseal any sealed data in the PDU, not including the
300 * 8 byte auth_header or the auth_data.
304 * Now unseal and check the auth verifier in the auth_data at
305 * the end of the packet.
308 if (cli
->pipe_auth_flags
& AUTH_PIPE_SEAL
) {
310 DEBUG(1, ("Can't unseal - data_len < 0!!\n"));
313 nt_status
= ntlmssp_unseal_packet(cli
->ntlmssp_pipe_state
,
314 (unsigned char *)reply_data
, data_len
,
317 else if (cli
->pipe_auth_flags
& AUTH_PIPE_SIGN
) {
318 nt_status
= ntlmssp_check_packet(cli
->ntlmssp_pipe_state
,
319 (const unsigned char *)reply_data
, data_len
,
323 data_blob_free(&sig
);
325 if (!NT_STATUS_IS_OK(nt_status
)) {
326 DEBUG(0, ("rpc_auth_pipe: could not validate "
327 "incoming NTLMSSP packet!\n"));
332 if (cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
333 RPC_AUTH_NETSEC_CHK chk
;
335 if ( (auth_len
!= RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN
)
336 && (auth_len
!= RPC_AUTH_NETSEC_SIGN_ONLY_CHK_LEN
) )
338 DEBUG(0,("rpc_auth_pipe: wrong schannel auth len %d\n", auth_len
));
342 /* can't seal with no nonce */
343 if ( (cli
->pipe_auth_flags
& AUTH_PIPE_SEAL
)
344 && (auth_len
!= RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN
) )
346 DEBUG(0,("rpc_auth_pipe: sealing not supported with schannel auth len %d\n", auth_len
));
351 if (!smb_io_rpc_auth_netsec_chk("schannel_auth_sign", auth_len
, &chk
, &auth_verf
, 0))
353 DEBUG(0, ("rpc_auth_pipe: schannel unmarshalling "
354 "RPC_AUTH_NETSECK_CHK failed\n"));
358 if (!netsec_decode(&cli
->auth_info
,
359 cli
->pipe_auth_flags
,
361 &chk
, reply_data
, data_len
)) {
362 DEBUG(0, ("rpc_auth_pipe: Could not decode schannel\n"));
366 cli
->auth_info
.seq_num
++;
373 /****************************************************************************
374 Send data on an rpc pipe via trans, which *must* be the last fragment.
375 receive response data from an rpc pipe, which may be large...
377 Read the first fragment: unfortunately have to use SMBtrans for the first
378 bit, then SMBreadX for subsequent bits.
380 If first fragment received also wasn't the last fragment, continue
381 getting fragments until we _do_ receive the last fragment.
383 Request/Response PDU's look like the following...
385 |<------------------PDU len----------------------------------------------->|
386 |<-HDR_LEN-->|<--REQ LEN------>|.............|<-AUTH_HDRLEN->|<-AUTH_LEN-->|
388 +------------+-----------------+-------------+---------------+-------------+
389 | RPC HEADER | REQ/RESP HEADER | DATA ...... | AUTH_HDR | AUTH DATA |
390 +------------+-----------------+-------------+---------------+-------------+
392 Where the presence of the AUTH_HDR and AUTH are dependent on the
393 signing & sealing being negotiated.
395 ****************************************************************************/
397 static BOOL
rpc_api_pipe(struct cli_state
*cli
, int pipe_idx
, prs_struct
*data
, prs_struct
*rdata
,
398 uint8 expected_pkt_type
)
402 uint32 rparam_len
= 0;
407 char *pdata
= data
? prs_data_p(data
) : NULL
;
408 uint32 data_len
= data
? prs_offset(data
) : 0;
410 uint32 rdata_len
= 0;
411 uint32 current_offset
= 0;
412 uint32 fragment_start
= 0;
413 uint32 max_data
= cli
->max_xmit_frag
? cli
->max_xmit_frag
: 1024;
414 int auth_padding_len
= 0;
416 /* Create setup parameters - must be in native byte order. */
418 setup
[0] = TRANSACT_DCERPCCMD
;
419 setup
[1] = cli
->nt_pipe_fnum
[pipe_idx
]; /* Pipe file handle. */
421 DEBUG(5,("rpc_api_pipe: fnum:%x\n", (int)cli
->nt_pipe_fnum
[pipe_idx
]));
423 /* Send the RPC request and receive a response. For short RPC
424 calls (about 1024 bytes or so) the RPC request and response
425 appears in a SMBtrans request and response. Larger RPC
426 responses are received further on. */
428 if (!cli_api_pipe(cli
, "\\PIPE\\",
429 setup
, 2, 0, /* Setup, length, max */
430 NULL
, 0, 0, /* Params, length, max */
431 pdata
, data_len
, max_data
, /* data, length, max */
432 &rparam
, &rparam_len
, /* return params, len */
433 &prdata
, &rdata_len
)) /* return data, len */
435 DEBUG(0, ("cli_pipe: return critical error. Error was %s\n", cli_errstr(cli
)));
439 /* Throw away returned params - we know we won't use them. */
443 if (prdata
== NULL
) {
444 DEBUG(0,("rpc_api_pipe: pipe %x failed to return data.\n",
445 (int)cli
->nt_pipe_fnum
[pipe_idx
]));
450 * Give this memory as dynamically allocated to the return parse
454 prs_give_memory(rdata
, prdata
, rdata_len
, True
);
455 current_offset
= rdata_len
;
457 /* This next call sets the endian bit correctly in rdata. */
459 if (!rpc_check_hdr(rdata
, &rhdr
, &first
, &last
, &len
)) {
464 if (rhdr
.pkt_type
== RPC_BINDACK
) {
465 if (!last
&& !first
) {
466 DEBUG(5,("rpc_api_pipe: bug in server (AS/U?), setting fragment first/last ON.\n"));
472 if (rhdr
.pkt_type
== RPC_BINDNACK
) {
473 DEBUG(3, ("Bind NACK received on pipe %x!\n", (int)cli
->nt_pipe_fnum
[pipe_idx
]));
478 if (rhdr
.pkt_type
== RPC_RESPONSE
) {
479 RPC_HDR_RESP rhdr_resp
;
480 if(!smb_io_rpc_hdr_resp("rpc_hdr_resp", &rhdr_resp
, rdata
, 0)) {
481 DEBUG(5,("rpc_api_pipe: failed to unmarshal RPC_HDR_RESP.\n"));
487 if (rhdr
.pkt_type
!= expected_pkt_type
) {
488 DEBUG(3, ("Connection to pipe %x got an unexpected RPC packet type - %d, not %d\n", (int)cli
->nt_pipe_fnum
[pipe_idx
], rhdr
.pkt_type
, expected_pkt_type
));
493 DEBUG(5,("rpc_api_pipe: len left: %u smbtrans read: %u\n",
494 (unsigned int)len
, (unsigned int)rdata_len
));
496 /* check if data to be sent back was too large for one SMBtrans */
497 /* err status is only informational: the _real_ check is on the
501 /* || err == (0x80000000 | STATUS_BUFFER_OVERFLOW)) */
503 /* Read the remaining part of the first response fragment */
505 if (!rpc_read(cli
, pipe_idx
, rdata
, len
, ¤t_offset
)) {
512 * Now we have a complete PDU, check the auth struct if any was sent.
515 if(!rpc_auth_pipe(cli
, rdata
, fragment_start
, rhdr
.frag_len
,
516 rhdr
.auth_len
, rhdr
.pkt_type
, &auth_padding_len
)) {
521 if (rhdr
.auth_len
!= 0) {
523 * Drop the auth footers from the current offset.
524 * We need this if there are more fragments.
525 * The auth footers consist of the auth_data and the
526 * preceeding 8 byte auth_header.
528 current_offset
-= (auth_padding_len
+ RPC_HDR_AUTH_LEN
+ rhdr
.auth_len
);
532 * Only one rpc fragment, and it has been read.
536 DEBUG(6,("rpc_api_pipe: fragment first and last both set\n"));
541 * Read more fragments using SMBreadX until we get one with the
546 RPC_HDR_RESP rhdr_resp
;
548 char hdr_data
[RPC_HEADER_LEN
+RPC_HDR_RESP_LEN
];
554 * First read the header of the next PDU.
557 prs_init(&hps
, 0, cli
->mem_ctx
, UNMARSHALL
);
558 prs_give_memory(&hps
, hdr_data
, sizeof(hdr_data
), False
);
560 num_read
= cli_read(cli
, cli
->nt_pipe_fnum
[pipe_idx
], hdr_data
, 0, RPC_HEADER_LEN
+RPC_HDR_RESP_LEN
);
561 if (cli_is_dos_error(cli
)) {
562 cli_dos_error(cli
, &eclass
, &ecode
);
563 if (eclass
!= ERRDOS
&& ecode
!= ERRmoredata
) {
564 DEBUG(0,("rpc_api_pipe: cli_read error : %d/%d\n", eclass
, ecode
));
569 DEBUG(5,("rpc_api_pipe: read header (size:%d)\n", num_read
));
571 if (num_read
!= RPC_HEADER_LEN
+RPC_HDR_RESP_LEN
) {
572 DEBUG(0,("rpc_api_pipe: Error : requested %d bytes, got %d.\n",
573 RPC_HEADER_LEN
+RPC_HDR_RESP_LEN
, num_read
));
577 /* This call sets the endianness in hps. */
579 if (!rpc_check_hdr(&hps
, &rhdr
, &first
, &last
, &len
))
582 /* Ensure the endianness in rdata is set correctly - must be same as hps. */
584 if (hps
.bigendian_data
!= rdata
->bigendian_data
) {
585 DEBUG(0,("rpc_api_pipe: Error : Endianness changed from %s to %s\n",
586 rdata
->bigendian_data
? "big" : "little",
587 hps
.bigendian_data
? "big" : "little" ));
591 if(!smb_io_rpc_hdr_resp("rpc_hdr_resp", &rhdr_resp
, &hps
, 0)) {
592 DEBUG(0,("rpc_api_pipe: Error in unmarshalling RPC_HDR_RESP.\n"));
597 DEBUG(0,("rpc_api_pipe: secondary PDU rpc header has 'first' set !\n"));
602 * Now read the rest of the PDU.
605 if (!rpc_read(cli
, pipe_idx
, rdata
, len
, ¤t_offset
)) {
610 fragment_start
= current_offset
- len
- RPC_HEADER_LEN
- RPC_HDR_RESP_LEN
;
613 * Verify any authentication footer.
617 if(!rpc_auth_pipe(cli
, rdata
, fragment_start
, rhdr
.frag_len
,
618 rhdr
.auth_len
, rhdr
.pkt_type
, &auth_padding_len
)) {
623 if (rhdr
.auth_len
!= 0 ) {
626 * Drop the auth footers from the current offset.
627 * The auth footers consist of the auth_data and the
628 * preceeding 8 byte auth_header.
629 * We need this if there are more fragments.
631 current_offset
-= (auth_padding_len
+ RPC_HDR_AUTH_LEN
+ rhdr
.auth_len
);
638 /*******************************************************************
639 creates a DCE/RPC bind request
641 - initialises the parse structure.
642 - dynamically allocates the header data structure
643 - caller is expected to free the header data structure once used.
645 ********************************************************************/
647 static NTSTATUS
create_rpc_bind_req(struct cli_state
*cli
, prs_struct
*rpc_out
,
649 RPC_IFACE
*abstract
, RPC_IFACE
*transfer
,
650 const char *my_name
, const char *domain
)
654 RPC_HDR_AUTH hdr_auth
;
656 int auth_type
, auth_level
;
657 size_t saved_hdr_offset
= 0;
659 prs_struct auth_info
;
660 prs_init(&auth_info
, RPC_HDR_AUTH_LEN
, /* we will need at least this much */
661 prs_get_mem_context(rpc_out
), MARSHALL
);
663 if (cli
->pipe_auth_flags
) {
664 get_auth_type_level(cli
->pipe_auth_flags
, &auth_type
, &auth_level
);
667 * Create the auth structs we will marshall.
670 init_rpc_hdr_auth(&hdr_auth
, auth_type
, auth_level
, 0x00, 1);
673 * Now marshall the data into the temporary parse_struct.
676 if(!smb_io_rpc_hdr_auth("hdr_auth", &hdr_auth
, &auth_info
, 0)) {
677 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_HDR_AUTH.\n"));
678 prs_mem_free(&auth_info
);
679 return NT_STATUS_NO_MEMORY
;
681 saved_hdr_offset
= prs_offset(&auth_info
);
684 if (cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
687 DATA_BLOB null_blob
= data_blob(NULL
, 0);
690 DEBUG(5, ("Processing NTLMSSP Negotiate\n"));
691 nt_status
= ntlmssp_update(cli
->ntlmssp_pipe_state
,
695 if (!NT_STATUS_EQUAL(nt_status
,
696 NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
697 prs_mem_free(&auth_info
);
701 /* Auth len in the rpc header doesn't include auth_header. */
702 auth_len
= request
.length
;
703 prs_copy_data_in(&auth_info
, (char *)request
.data
, request
.length
);
705 DEBUG(5, ("NTLMSSP Negotiate:\n"));
706 dump_data(5, (const char *)request
.data
, request
.length
);
708 data_blob_free(&request
);
710 } else if (cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
711 RPC_AUTH_NETSEC_NEG netsec_neg
;
713 /* Use lp_workgroup() if domain not specified */
715 if (!domain
|| !domain
[0]) {
716 DEBUG(10,("create_rpc_bind_req: no domain; assuming my own\n"));
717 domain
= lp_workgroup();
720 init_rpc_auth_netsec_neg(&netsec_neg
, domain
, my_name
);
723 * Now marshall the data into the temporary parse_struct.
726 if(!smb_io_rpc_auth_netsec_neg("netsec_neg",
727 &netsec_neg
, &auth_info
, 0)) {
728 DEBUG(0,("Failed to marshall RPC_AUTH_NETSEC_NEG.\n"));
729 prs_mem_free(&auth_info
);
730 return NT_STATUS_NO_MEMORY
;
733 /* Auth len in the rpc header doesn't include auth_header. */
734 auth_len
= prs_offset(&auth_info
) - saved_hdr_offset
;
737 /* Create the request RPC_HDR */
738 init_rpc_hdr(&hdr
, RPC_BIND
, 0x3, rpc_call_id
,
739 RPC_HEADER_LEN
+ RPC_HDR_RB_LEN
+ prs_offset(&auth_info
),
742 if(!smb_io_rpc_hdr("hdr" , &hdr
, rpc_out
, 0)) {
743 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_HDR.\n"));
744 prs_mem_free(&auth_info
);
745 return NT_STATUS_NO_MEMORY
;
748 /* create the bind request RPC_HDR_RB */
749 init_rpc_hdr_rb(&hdr_rb
, MAX_PDU_FRAG_LEN
, MAX_PDU_FRAG_LEN
, 0x0,
750 0x1, 0x0, 0x1, abstract
, transfer
);
752 /* Marshall the bind request data */
753 if(!smb_io_rpc_hdr_rb("", &hdr_rb
, rpc_out
, 0)) {
754 DEBUG(0,("create_rpc_bind_req: failed to marshall RPC_HDR_RB.\n"));
755 prs_mem_free(&auth_info
);
756 return NT_STATUS_NO_MEMORY
;
760 * Grow the outgoing buffer to store any auth info.
764 if(!prs_append_prs_data( rpc_out
, &auth_info
)) {
765 DEBUG(0,("create_rpc_bind_req: failed to grow parse struct to add auth.\n"));
766 prs_mem_free(&auth_info
);
767 return NT_STATUS_NO_MEMORY
;
770 prs_mem_free(&auth_info
);
774 /*******************************************************************
775 Creates a DCE/RPC bind authentication response.
776 This is the packet that is sent back to the server once we
777 have received a BIND-ACK, to finish the third leg of
778 the authentication handshake.
779 ********************************************************************/
781 static NTSTATUS
create_rpc_bind_resp(struct cli_state
*cli
,
787 RPC_HDR_AUTHA hdr_autha
;
788 DATA_BLOB ntlmssp_null_response
= data_blob(NULL
, 0);
789 DATA_BLOB ntlmssp_reply
;
790 int auth_type
, auth_level
;
792 /* The response is picked up from the internal cache,
793 where it was placed by the rpc_auth_pipe() code */
794 nt_status
= ntlmssp_update(cli
->ntlmssp_pipe_state
,
795 ntlmssp_null_response
,
798 if (!NT_STATUS_EQUAL(nt_status
, NT_STATUS_MORE_PROCESSING_REQUIRED
)) {
802 /* Create the request RPC_HDR */
803 init_rpc_hdr(&hdr
, RPC_BINDRESP
, 0x0, rpc_call_id
,
804 RPC_HEADER_LEN
+ RPC_HDR_AUTHA_LEN
+ ntlmssp_reply
.length
,
805 ntlmssp_reply
.length
);
808 if(!smb_io_rpc_hdr("hdr", &hdr
, rpc_out
, 0)) {
809 DEBUG(0,("create_rpc_bind_resp: failed to marshall RPC_HDR.\n"));
810 data_blob_free(&ntlmssp_reply
);
811 return NT_STATUS_NO_MEMORY
;
814 get_auth_type_level(cli
->pipe_auth_flags
, &auth_type
, &auth_level
);
816 /* Create the request RPC_HDR_AUTHA */
817 init_rpc_hdr_autha(&hdr_autha
, MAX_PDU_FRAG_LEN
, MAX_PDU_FRAG_LEN
,
818 auth_type
, auth_level
, 0x00);
820 if(!smb_io_rpc_hdr_autha("hdr_autha", &hdr_autha
, rpc_out
, 0)) {
821 DEBUG(0,("create_rpc_bind_resp: failed to marshall RPC_HDR_AUTHA.\n"));
822 data_blob_free(&ntlmssp_reply
);
823 return NT_STATUS_NO_MEMORY
;
827 * Append the auth data to the outgoing buffer.
830 if(!prs_copy_data_in(rpc_out
, (char *)ntlmssp_reply
.data
, ntlmssp_reply
.length
)) {
831 DEBUG(0,("create_rpc_bind_req: failed to grow parse struct to add auth.\n"));
832 data_blob_free(&ntlmssp_reply
);
833 return NT_STATUS_NO_MEMORY
;
836 data_blob_free(&ntlmssp_reply
);
841 /*******************************************************************
842 Creates a DCE/RPC request.
843 ********************************************************************/
845 static uint32
create_rpc_request(prs_struct
*rpc_out
, uint8 op_num
, int data_len
, int auth_len
, uint8 flags
, uint32 oldid
, uint32 data_left
)
850 uint32 callid
= oldid
? oldid
: get_rpc_call_id();
852 DEBUG(5,("create_rpc_request: opnum: 0x%x data_len: 0x%x\n", op_num
, data_len
));
854 /* create the rpc header RPC_HDR */
855 init_rpc_hdr(&hdr
, RPC_REQUEST
, flags
,
856 callid
, data_len
, auth_len
);
859 * The alloc hint should be the amount of data, not including
860 * RPC headers & footers.
864 alloc_hint
= data_len
- RPC_HEADER_LEN
- RPC_HDR_AUTH_LEN
- auth_len
;
866 alloc_hint
= data_len
- RPC_HEADER_LEN
;
868 DEBUG(10,("create_rpc_request: data_len: %x auth_len: %x alloc_hint: %x\n",
869 data_len
, auth_len
, alloc_hint
));
871 /* Create the rpc request RPC_HDR_REQ */
872 init_rpc_hdr_req(&hdr_req
, alloc_hint
, op_num
);
875 if(!smb_io_rpc_hdr("hdr ", &hdr
, rpc_out
, 0))
878 if(!smb_io_rpc_hdr_req("hdr_req", &hdr_req
, rpc_out
, 0))
881 if (prs_offset(rpc_out
) != RPC_HEADER_LEN
+ RPC_HDR_REQ_LEN
)
887 /*******************************************************************
888 Puts an auth header into an rpc request.
889 ********************************************************************/
891 static BOOL
create_auth_hdr(prs_struct
*outgoing_packet
,
893 int auth_level
, int padding
)
895 RPC_HDR_AUTH hdr_auth
;
897 init_rpc_hdr_auth(&hdr_auth
, auth_type
, auth_level
,
899 if(!smb_io_rpc_hdr_auth("hdr_auth", &hdr_auth
,
900 outgoing_packet
, 0)) {
901 DEBUG(0,("create_auth_hdr:Failed to marshal RPC_HDR_AUTH.\n"));
908 * Send a request on an RPC pipe and get a response.
910 * @param data NDR contents of the request to be sent.
911 * @param rdata Unparsed NDR response data.
914 BOOL
rpc_api_pipe_req(struct cli_state
*cli
, int pipe_idx
, uint8 op_num
,
915 prs_struct
*data
, prs_struct
*rdata
)
917 uint32 auth_len
, real_auth_len
, auth_hdr_len
, max_data
, data_left
, data_sent
;
927 if (cli
->pipe_auth_flags
& AUTH_PIPE_SIGN
) {
928 if (cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
929 auth_len
= RPC_AUTH_NTLMSSP_CHK_LEN
;
931 if (cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
932 auth_len
= RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN
;
934 auth_hdr_len
= RPC_HDR_AUTH_LEN
;
938 * calc how much actual data we can send in a PDU fragment
940 max_data
= cli
->max_xmit_frag
- RPC_HEADER_LEN
- RPC_HDR_REQ_LEN
-
941 auth_hdr_len
- auth_len
- 8;
943 for (data_left
= prs_offset(data
), data_sent
= 0; data_left
> 0;) {
944 prs_struct outgoing_packet
;
946 uint32 data_len
, send_size
;
948 uint32 auth_padding
= 0;
952 * how much will we send this time
954 send_size
= MIN(data_left
, max_data
);
956 if (!prs_init(&sec_blob
, send_size
, /* will need at least this much */
957 cli
->mem_ctx
, MARSHALL
)) {
958 DEBUG(0,("Could not malloc %u bytes",
959 send_size
+auth_padding
));
963 if(!prs_append_some_prs_data(&sec_blob
, data
,
964 data_sent
, send_size
)) {
965 DEBUG(0,("Failed to append data to netsec blob\n"));
966 prs_mem_free(&sec_blob
);
971 * NT expects the data that is sealed to be 8-byte
972 * aligned. The padding must be encrypted as well and
973 * taken into account when generating the
974 * authentication verifier. The amount of padding must
975 * be stored in the auth header.
978 if (cli
->pipe_auth_flags
) {
979 size_t data_and_padding_size
;
982 prs_align_uint64(&sec_blob
);
984 get_auth_type_level(cli
->pipe_auth_flags
, &auth_type
, &auth_level
);
986 data_and_padding_size
= prs_offset(&sec_blob
);
987 auth_padding
= data_and_padding_size
- send_size
;
989 /* insert the auth header */
991 if(!create_auth_hdr(&sec_blob
, auth_type
, auth_level
, auth_padding
)) {
992 prs_mem_free(&sec_blob
);
996 /* create an NTLMSSP signature */
997 if (cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
999 * Seal the outgoing data if requested.
1001 if (cli
->pipe_auth_flags
& AUTH_PIPE_SEAL
) {
1003 nt_status
= ntlmssp_seal_packet(cli
->ntlmssp_pipe_state
,
1004 (unsigned char*)prs_data_p(&sec_blob
),
1005 data_and_padding_size
,
1007 if (!NT_STATUS_IS_OK(nt_status
)) {
1008 prs_mem_free(&sec_blob
);
1012 else if (cli
->pipe_auth_flags
& AUTH_PIPE_SIGN
) {
1014 nt_status
= ntlmssp_sign_packet(cli
->ntlmssp_pipe_state
,
1015 (unsigned char*)prs_data_p(&sec_blob
),
1016 data_and_padding_size
, &sign_blob
);
1017 if (!NT_STATUS_IS_OK(nt_status
)) {
1018 prs_mem_free(&sec_blob
);
1024 /* write auth footer onto the packet */
1025 real_auth_len
= sign_blob
.length
;
1027 prs_copy_data_in(&sec_blob
, (char *)sign_blob
.data
, sign_blob
.length
);
1028 data_blob_free(&sign_blob
);
1031 else if (cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
1032 size_t parse_offset_marker
;
1033 RPC_AUTH_NETSEC_CHK verf
;
1034 DEBUG(10,("SCHANNEL seq_num=%d\n", cli
->auth_info
.seq_num
));
1036 netsec_encode(&cli
->auth_info
,
1037 cli
->pipe_auth_flags
,
1038 SENDER_IS_INITIATOR
,
1040 prs_data_p(&sec_blob
),
1041 data_and_padding_size
);
1043 cli
->auth_info
.seq_num
++;
1045 /* write auth footer onto the packet */
1047 parse_offset_marker
= prs_offset(&sec_blob
);
1048 if (!smb_io_rpc_auth_netsec_chk("", RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN
,
1049 &verf
, &sec_blob
, 0))
1051 prs_mem_free(&sec_blob
);
1054 real_auth_len
= prs_offset(&sec_blob
) - parse_offset_marker
;
1058 data_len
= RPC_HEADER_LEN
+ RPC_HDR_REQ_LEN
+ prs_offset(&sec_blob
);
1061 * Malloc parse struct to hold it (and enough for alignments).
1063 if(!prs_init(&outgoing_packet
, data_len
+ 8,
1064 cli
->mem_ctx
, MARSHALL
)) {
1065 DEBUG(0,("rpc_api_pipe_req: Failed to malloc %u bytes.\n", (unsigned int)data_len
));
1069 if (data_left
== prs_offset(data
))
1070 flags
|= RPC_FLG_FIRST
;
1072 if (data_left
<= max_data
)
1073 flags
|= RPC_FLG_LAST
;
1075 * Write out the RPC header and the request header.
1077 if(!(callid
= create_rpc_request(&outgoing_packet
, op_num
,
1078 data_len
, real_auth_len
, flags
,
1079 callid
, data_left
))) {
1080 DEBUG(0,("rpc_api_pipe_req: Failed to create RPC request.\n"));
1081 prs_mem_free(&outgoing_packet
);
1082 prs_mem_free(&sec_blob
);
1086 prs_append_prs_data(&outgoing_packet
, &sec_blob
);
1087 prs_mem_free(&sec_blob
);
1089 DEBUG(100,("data_len: %x data_calc_len: %x\n", data_len
,
1090 prs_offset(&outgoing_packet
)));
1092 if (flags
& RPC_FLG_LAST
)
1093 ret
= rpc_api_pipe(cli
, pipe_idx
, &outgoing_packet
,
1094 rdata
, RPC_RESPONSE
);
1096 cli_write(cli
, cli
->nt_pipe_fnum
[pipe_idx
], 0x0008,
1097 prs_data_p(&outgoing_packet
),
1098 data_sent
, data_len
);
1100 prs_mem_free(&outgoing_packet
);
1101 data_sent
+= send_size
;
1102 data_left
-= send_size
;
1104 /* Also capture received data */
1105 slprintf(dump_name
, sizeof(dump_name
) - 1, "reply_%s",
1106 cli_pipe_get_name(cli
));
1107 prs_dump(dump_name
, op_num
, rdata
);
1112 /****************************************************************************
1113 Set the handle state.
1114 ****************************************************************************/
1116 static BOOL
rpc_pipe_set_hnd_state(struct cli_state
*cli
, int pipe_idx
, const char *pipe_name
, uint16 device_state
)
1118 BOOL state_set
= False
;
1120 uint16 setup
[2]; /* only need 2 uint16 setup parameters */
1121 char *rparam
= NULL
;
1123 uint32 rparam_len
, rdata_len
;
1125 if (pipe_name
== NULL
)
1128 DEBUG(5,("Set Handle state Pipe[%x]: %s - device state:%x\n",
1129 cli
->nt_pipe_fnum
[pipe_idx
], pipe_name
, device_state
));
1131 /* create parameters: device state */
1132 SSVAL(param
, 0, device_state
);
1134 /* create setup parameters. */
1136 setup
[1] = cli
->nt_pipe_fnum
[pipe_idx
]; /* pipe file handle. got this from an SMBOpenX. */
1138 /* send the data on \PIPE\ */
1139 if (cli_api_pipe(cli
, "\\PIPE\\",
1140 setup
, 2, 0, /* setup, length, max */
1141 param
, 2, 0, /* param, length, max */
1142 NULL
, 0, 1024, /* data, length, max */
1143 &rparam
, &rparam_len
, /* return param, length */
1144 &rdata
, &rdata_len
)) /* return data, length */
1146 DEBUG(5, ("Set Handle state: return OK\n"));
1156 /****************************************************************************
1157 check the rpc bind acknowledge response
1158 ****************************************************************************/
1160 int get_pipe_index( const char *pipe_name
)
1164 while (pipe_names
[pipe_idx
].client_pipe
!= NULL
) {
1165 if (strequal(pipe_name
, pipe_names
[pipe_idx
].client_pipe
))
1174 /****************************************************************************
1175 check the rpc bind acknowledge response
1176 ****************************************************************************/
1178 const char* get_pipe_name_from_index( const int pipe_index
)
1181 if ( (pipe_index
< 0) || (pipe_index
>= PI_MAX_PIPES
) )
1184 return pipe_names
[pipe_index
].client_pipe
;
1187 /****************************************************************************
1188 Check to see if this pipe index points to one of
1189 the pipes only supported by Win2k
1190 ****************************************************************************/
1192 BOOL
is_win2k_pipe( const int pipe_idx
)
1203 /****************************************************************************
1204 check the rpc bind acknowledge response
1205 ****************************************************************************/
1207 static BOOL
valid_pipe_name(const int pipe_idx
, RPC_IFACE
*abstract
, RPC_IFACE
*transfer
)
1209 if ( pipe_idx
>= PI_MAX_PIPES
) {
1210 DEBUG(0,("valid_pipe_name: Programmer error! Invalid pipe index [%d]\n",
1215 DEBUG(5,("Bind Abstract Syntax: "));
1216 dump_data(5, (char*)&(pipe_names
[pipe_idx
].abstr_syntax
),
1217 sizeof(pipe_names
[pipe_idx
].abstr_syntax
));
1218 DEBUG(5,("Bind Transfer Syntax: "));
1219 dump_data(5, (char*)&(pipe_names
[pipe_idx
].trans_syntax
),
1220 sizeof(pipe_names
[pipe_idx
].trans_syntax
));
1222 /* copy the required syntaxes out so we can do the right bind */
1224 *transfer
= pipe_names
[pipe_idx
].trans_syntax
;
1225 *abstract
= pipe_names
[pipe_idx
].abstr_syntax
;
1230 /****************************************************************************
1231 check the rpc bind acknowledge response
1232 ****************************************************************************/
1234 static BOOL
check_bind_response(RPC_HDR_BA
*hdr_ba
, const int pipe_idx
, RPC_IFACE
*transfer
)
1236 if ( hdr_ba
->addr
.len
== 0) {
1237 DEBUG(4,("Ignoring length check -- ASU bug (server didn't fill in the pipe name correctly)"));
1241 # if 0 /* JERRY -- apparently ASU forgets to fill in the server pipe name sometimes */
1242 if ( !strequal(hdr_ba
->addr
.str
, pipe_names
[pipe_idx
].client_pipe
) &&
1243 !strequal(hdr_ba
->addr
.str
, pipe_names
[pipe_idx
].server_pipe
) )
1245 DEBUG(4,("bind_rpc_pipe: pipe_name %s != expected pipe %s. oh well!\n",
1246 pipe_names
[i
].server_pipe
,hdr_ba
->addr
.str
));
1250 DEBUG(5,("bind_rpc_pipe: server pipe_name found: %s\n", pipe_names
[i
].server_pipe
));
1252 if (pipe_names
[pipe_idx
].server_pipe
== NULL
) {
1253 DEBUG(2,("bind_rpc_pipe: pipe name %s unsupported\n", hdr_ba
->addr
.str
));
1258 /* check the transfer syntax */
1259 if ((hdr_ba
->transfer
.version
!= transfer
->version
) ||
1260 (memcmp(&hdr_ba
->transfer
.uuid
, &transfer
->uuid
, sizeof(transfer
->uuid
)) !=0)) {
1261 DEBUG(2,("bind_rpc_pipe: transfer syntax differs\n"));
1265 /* lkclXXXX only accept one result: check the result(s) */
1266 if (hdr_ba
->res
.num_results
!= 0x1 || hdr_ba
->res
.result
!= 0) {
1267 DEBUG(2,("bind_rpc_pipe: bind denied results: %d reason: %x\n",
1268 hdr_ba
->res
.num_results
, hdr_ba
->res
.reason
));
1271 DEBUG(5,("bind_rpc_pipe: accepted!\n"));
1275 /****************************************************************************
1276 Create and send the third packet in an RPC auth.
1277 ****************************************************************************/
1279 static BOOL
rpc_send_auth_reply(struct cli_state
*cli
, int pipe_idx
, prs_struct
*rdata
, uint32 rpc_call_id
)
1284 prs_init(&rpc_out
, RPC_HEADER_LEN
+ RPC_HDR_AUTHA_LEN
, /* need at least this much */
1285 cli
->mem_ctx
, MARSHALL
);
1287 if (!NT_STATUS_IS_OK(create_rpc_bind_resp(cli
, rpc_call_id
,
1292 if ((ret
= cli_write(cli
, cli
->nt_pipe_fnum
[pipe_idx
], 0x8, prs_data_p(&rpc_out
),
1293 0, (size_t)prs_offset(&rpc_out
))) != (ssize_t
)prs_offset(&rpc_out
)) {
1294 DEBUG(0,("rpc_send_auth_reply: cli_write failed. Return was %d\n", (int)ret
));
1295 prs_mem_free(&rpc_out
);
1299 prs_mem_free(&rpc_out
);
1303 /****************************************************************************
1305 ****************************************************************************/
1307 static BOOL
rpc_pipe_bind(struct cli_state
*cli
, int pipe_idx
, const char *my_name
)
1314 char buffer
[MAX_PDU_FRAG_LEN
];
1316 if ( (pipe_idx
< 0) || (pipe_idx
>= PI_MAX_PIPES
) )
1319 DEBUG(5,("Bind RPC Pipe[%x]: %s\n", cli
->nt_pipe_fnum
[pipe_idx
], pipe_names
[pipe_idx
].client_pipe
));
1321 if (!valid_pipe_name(pipe_idx
, &abstract
, &transfer
))
1324 prs_init(&rpc_out
, 0, cli
->mem_ctx
, MARSHALL
);
1327 * Use the MAX_PDU_FRAG_LEN buffer to store the bind request.
1330 prs_give_memory( &rpc_out
, buffer
, sizeof(buffer
), False
);
1332 rpc_call_id
= get_rpc_call_id();
1334 if (cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
) {
1338 DEBUG(5, ("NTLMSSP authenticated pipe selected\n"));
1340 nt_status
= ntlmssp_client_start(&cli
->ntlmssp_pipe_state
);
1342 if (!NT_STATUS_IS_OK(nt_status
))
1345 /* Currently the NTLMSSP code does not implement NTLM2 correctly for signing or sealing */
1347 cli
->ntlmssp_pipe_state
->neg_flags
&= ~NTLMSSP_NEGOTIATE_NTLM2
;
1349 nt_status
= ntlmssp_set_username(cli
->ntlmssp_pipe_state
,
1351 if (!NT_STATUS_IS_OK(nt_status
))
1354 nt_status
= ntlmssp_set_domain(cli
->ntlmssp_pipe_state
,
1356 if (!NT_STATUS_IS_OK(nt_status
))
1359 if (cli
->pwd
.null_pwd
) {
1360 nt_status
= ntlmssp_set_password(cli
->ntlmssp_pipe_state
,
1362 if (!NT_STATUS_IS_OK(nt_status
))
1365 pwd_get_cleartext(&cli
->pwd
, password
);
1366 nt_status
= ntlmssp_set_password(cli
->ntlmssp_pipe_state
,
1368 if (!NT_STATUS_IS_OK(nt_status
))
1372 if (cli
->pipe_auth_flags
& AUTH_PIPE_SIGN
) {
1373 cli
->ntlmssp_pipe_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SIGN
;
1376 if (cli
->pipe_auth_flags
& AUTH_PIPE_SEAL
) {
1377 cli
->ntlmssp_pipe_state
->neg_flags
|= NTLMSSP_NEGOTIATE_SEAL
;
1379 } else if (cli
->pipe_auth_flags
& AUTH_PIPE_NETSEC
) {
1380 cli
->auth_info
.seq_num
= 0;
1383 /* Marshall the outgoing data. */
1384 create_rpc_bind_req(cli
, &rpc_out
, rpc_call_id
,
1385 &abstract
, &transfer
,
1386 global_myname(), cli
->domain
);
1388 /* Initialize the incoming data struct. */
1389 prs_init(&rdata
, 0, cli
->mem_ctx
, UNMARSHALL
);
1391 /* send data on \PIPE\. receive a response */
1392 if (rpc_api_pipe(cli
, pipe_idx
, &rpc_out
, &rdata
, RPC_BINDACK
)) {
1395 DEBUG(5, ("rpc_pipe_bind: rpc_api_pipe returned OK.\n"));
1397 if(!smb_io_rpc_hdr_ba("", &hdr_ba
, &rdata
, 0)) {
1398 DEBUG(0,("rpc_pipe_bind: Failed to unmarshall RPC_HDR_BA.\n"));
1399 prs_mem_free(&rdata
);
1403 if(!check_bind_response(&hdr_ba
, pipe_idx
, &transfer
)) {
1404 DEBUG(2,("rpc_pipe_bind: check_bind_response failed.\n"));
1405 prs_mem_free(&rdata
);
1409 cli
->max_xmit_frag
= hdr_ba
.bba
.max_tsize
;
1410 cli
->max_recv_frag
= hdr_ba
.bba
.max_rsize
;
1413 * If we're doing NTLMSSP auth we need to send a reply to
1414 * the bind-ack to complete the 3-way challenge response
1418 if ((cli
->pipe_auth_flags
& AUTH_PIPE_NTLMSSP
)
1419 && !rpc_send_auth_reply(cli
, pipe_idx
, &rdata
, rpc_call_id
)) {
1420 DEBUG(0,("rpc_pipe_bind: rpc_send_auth_reply failed.\n"));
1421 prs_mem_free(&rdata
);
1424 prs_mem_free(&rdata
);
1431 /****************************************************************************
1433 ****************************************************************************/
1435 BOOL
cli_nt_session_open(struct cli_state
*cli
, const int pipe_idx
)
1439 /* At the moment we can't have more than one pipe open over
1440 a cli connection. )-: */
1442 SMB_ASSERT(cli
->nt_pipe_fnum
[pipe_idx
] == 0);
1444 /* The pipe index must fall within our array */
1446 SMB_ASSERT((pipe_idx
>= 0) && (pipe_idx
< PI_MAX_PIPES
));
1448 if (cli
->capabilities
& CAP_NT_SMBS
) {
1449 if ((fnum
= cli_nt_create(cli
, &pipe_names
[pipe_idx
].client_pipe
[5], DESIRED_ACCESS_PIPE
)) == -1) {
1450 DEBUG(0,("cli_nt_session_open: cli_nt_create failed on pipe %s to machine %s. Error was %s\n",
1451 &pipe_names
[pipe_idx
].client_pipe
[5], cli
->desthost
, cli_errstr(cli
)));
1455 cli
->nt_pipe_fnum
[pipe_idx
] = (uint16
)fnum
;
1457 if ((fnum
= cli_open(cli
, pipe_names
[pipe_idx
].client_pipe
, O_CREAT
|O_RDWR
, DENY_NONE
)) == -1) {
1458 DEBUG(1,("cli_nt_session_open: cli_open failed on pipe %s to machine %s. Error was %s\n",
1459 pipe_names
[pipe_idx
].client_pipe
, cli
->desthost
, cli_errstr(cli
)));
1463 cli
->nt_pipe_fnum
[pipe_idx
] = (uint16
)fnum
;
1465 /**************** Set Named Pipe State ***************/
1466 if (!rpc_pipe_set_hnd_state(cli
, pipe_idx
, pipe_names
[pipe_idx
].client_pipe
, 0x4300)) {
1467 DEBUG(0,("cli_nt_session_open: pipe hnd state failed. Error was %s\n",
1469 cli_close(cli
, cli
->nt_pipe_fnum
[pipe_idx
]);
1470 cli
->nt_pipe_fnum
[pipe_idx
] = 0;
1475 /******************* bind request on pipe *****************/
1477 if (!rpc_pipe_bind(cli
, pipe_idx
, global_myname())) {
1478 DEBUG(2,("cli_nt_session_open: rpc bind to %s failed\n",
1479 get_pipe_name_from_index(pipe_idx
)));
1480 cli_close(cli
, cli
->nt_pipe_fnum
[pipe_idx
]);
1481 cli
->nt_pipe_fnum
[pipe_idx
] = 0;
1485 cli
->pipe_idx
= pipe_idx
;
1488 * Setup the remote server name prefixed by \ and the machine account name.
1491 fstrcpy(cli
->srv_name_slash
, "\\\\");
1492 fstrcat(cli
->srv_name_slash
, cli
->desthost
);
1493 strupper_m(cli
->srv_name_slash
);
1495 fstrcpy(cli
->clnt_name_slash
, "\\\\");
1496 fstrcat(cli
->clnt_name_slash
, global_myname());
1497 strupper_m(cli
->clnt_name_slash
);
1499 fstrcpy(cli
->mach_acct
, global_myname());
1500 fstrcat(cli
->mach_acct
, "$");
1501 strupper_m(cli
->mach_acct
);
1503 /* Remember which pipe we're talking to */
1504 fstrcpy(cli
->pipe_name
, pipe_names
[pipe_idx
].client_pipe
);
1510 /****************************************************************************
1511 Open a session to the NETLOGON pipe using schannel.
1513 (Assumes that the netlogon pipe is already open)
1514 ****************************************************************************/
1516 NTSTATUS
cli_nt_establish_netlogon(struct cli_state
*cli
, int sec_chan
,
1517 const uchar trust_password
[16])
1520 uint32 neg_flags
= NETLOGON_NEG_AUTH2_FLAGS
;
1523 cli_nt_netlogon_netsec_session_close(cli
);
1525 if (lp_client_schannel() != False
)
1526 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
1528 result
= cli_nt_setup_creds(cli
, sec_chan
, trust_password
,
1531 if (!NT_STATUS_IS_OK(result
)) {
1532 cli_nt_session_close(cli
);
1536 if ((lp_client_schannel() == True
) &&
1537 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
1539 DEBUG(3, ("Server did not offer schannel\n"));
1540 cli_nt_session_close(cli
);
1541 return NT_STATUS_UNSUCCESSFUL
;
1544 if ((lp_client_schannel() == False
) ||
1545 ((neg_flags
& NETLOGON_NEG_SCHANNEL
) == 0)) {
1546 return NT_STATUS_OK
;
1548 /* keep the existing connection to NETLOGON open */
1552 /* Server offered schannel, so try it. */
1554 memcpy(cli
->auth_info
.sess_key
, cli
->sess_key
,
1555 sizeof(cli
->auth_info
.sess_key
));
1557 cli
->saved_netlogon_pipe_fnum
= cli
->nt_pipe_fnum
[PI_NETLOGON
];
1559 cli
->pipe_auth_flags
= AUTH_PIPE_NETSEC
;
1560 cli
->pipe_auth_flags
|= AUTH_PIPE_SIGN
;
1561 cli
->pipe_auth_flags
|= AUTH_PIPE_SEAL
;
1563 if (cli
->capabilities
& CAP_NT_SMBS
) {
1565 /* The secure channel connection must be opened on the same
1566 session (TCP connection) as the one the challenge was
1568 if ((fnum
= cli_nt_create(cli
, PIPE_NETLOGON_PLAIN
,
1569 DESIRED_ACCESS_PIPE
)) == -1) {
1570 DEBUG(0,("cli_nt_create failed to %s machine %s. "
1572 PIPE_NETLOGON
, cli
->desthost
,
1574 return NT_STATUS_UNSUCCESSFUL
;
1577 cli
->nt_pipe_fnum
[PI_NETLOGON
] = (uint16
)fnum
;
1579 if ((fnum
= cli_open(cli
, PIPE_NETLOGON
,
1580 O_CREAT
|O_RDWR
, DENY_NONE
)) == -1) {
1581 DEBUG(0,("cli_open failed on pipe %s to machine %s. "
1583 PIPE_NETLOGON
, cli
->desthost
,
1585 return NT_STATUS_UNSUCCESSFUL
;
1588 cli
->nt_pipe_fnum
[PI_NETLOGON
] = (uint16
)fnum
;
1590 /**************** Set Named Pipe State ***************/
1591 if (!rpc_pipe_set_hnd_state(cli
, PI_NETLOGON
, PIPE_NETLOGON
, 0x4300)) {
1592 DEBUG(0,("Pipe hnd state failed. Error was %s\n",
1594 cli_close(cli
, cli
->nt_pipe_fnum
[PI_NETLOGON
]);
1595 return NT_STATUS_UNSUCCESSFUL
;
1599 if (!rpc_pipe_bind(cli
, PI_NETLOGON
, global_myname())) {
1600 DEBUG(2,("rpc bind to %s failed\n", PIPE_NETLOGON
));
1601 cli_close(cli
, cli
->nt_pipe_fnum
[PI_NETLOGON
]);
1602 return NT_STATUS_UNSUCCESSFUL
;
1605 return NT_STATUS_OK
;
1609 NTSTATUS
cli_nt_setup_netsec(struct cli_state
*cli
, int sec_chan
, int auth_flags
,
1610 const uchar trust_password
[16])
1613 uint32 neg_flags
= NETLOGON_NEG_AUTH2_FLAGS
;
1614 cli
->pipe_auth_flags
= 0;
1616 if (lp_client_schannel() == False
) {
1617 return NT_STATUS_OK
;
1620 if (!cli_nt_session_open(cli
, PI_NETLOGON
)) {
1621 DEBUG(0, ("Could not initialise %s\n",
1622 get_pipe_name_from_index(PI_NETLOGON
)));
1623 return NT_STATUS_UNSUCCESSFUL
;
1626 neg_flags
|= NETLOGON_NEG_SCHANNEL
;
1628 result
= cli_nt_setup_creds(cli
, sec_chan
, trust_password
,
1631 if (!(neg_flags
& NETLOGON_NEG_SCHANNEL
)
1632 && lp_client_schannel() == True
) {
1633 DEBUG(1, ("Could not negotiate SCHANNEL with the DC!\n"));
1634 result
= NT_STATUS_UNSUCCESSFUL
;
1637 if (!NT_STATUS_IS_OK(result
)) {
1638 ZERO_STRUCT(cli
->auth_info
.sess_key
);
1639 ZERO_STRUCT(cli
->sess_key
);
1640 cli
->pipe_auth_flags
= 0;
1641 cli_nt_session_close(cli
);
1645 memcpy(cli
->auth_info
.sess_key
, cli
->sess_key
,
1646 sizeof(cli
->auth_info
.sess_key
));
1648 cli
->saved_netlogon_pipe_fnum
= cli
->nt_pipe_fnum
[PI_NETLOGON
];
1649 cli
->nt_pipe_fnum
[PI_NETLOGON
] = 0;
1651 /* doing schannel, not per-user auth */
1652 cli
->pipe_auth_flags
= auth_flags
;
1654 return NT_STATUS_OK
;
1657 const char *cli_pipe_get_name(struct cli_state
*cli
)
1659 return cli
->pipe_name
;