2 * Unix SMB/CIFS implementation.
3 * RPC Pipe client / server routines
4 * Almost completely rewritten by (C) Jeremy Allison 2005.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 /* this module apparently provides an implementation of DCE/RPC over a
22 * named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
23 * documentation are available (in on-line form) from the X-Open group.
25 * this module should provide a level of abstraction between SMB
26 * and DCE/RPC, while minimising the amount of mallocs, unnecessary
27 * data copies, and network traffic.
33 extern struct pipe_id_info pipe_names[];
34 extern struct current_user current_user;
37 #define DBGC_CLASS DBGC_RPC_SRV
39 static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
41 AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
46 auth->a_u.auth_ntlmssp_state = NULL;
49 /*******************************************************************
50 Generate the next PDU to be returned from the data in p->rdata.
52 ********************************************************************/
54 static BOOL create_next_pdu_ntlmssp(pipes_struct *p)
56 RPC_HDR_RESP hdr_resp;
57 uint32 ss_padding_len = 0;
58 uint32 data_space_available;
61 prs_struct outgoing_pdu;
64 RPC_HDR_AUTH auth_info;
65 uint8 auth_type, auth_level;
66 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
69 * If we're in the fault state, keep returning fault PDU's until
70 * the pipe gets closed. JRA.
74 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
78 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
80 /* Change the incoming request header to a response. */
81 p->hdr.pkt_type = RPC_RESPONSE;
83 /* Set up rpc header flags. */
84 if (p->out_data.data_sent_length == 0) {
85 p->hdr.flags = RPC_FLG_FIRST;
91 * Work out how much we can fit in a single PDU.
94 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
97 * Ensure there really is data left to send.
101 DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
105 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
106 RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
109 * The amount we send is the minimum of the available
110 * space and the amount left to send.
113 data_len = MIN(data_len_left, data_space_available);
116 * Set up the alloc hint. This should be the data left to
120 hdr_resp.alloc_hint = data_len_left;
123 * Work out if this PDU will be the last.
126 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
127 p->hdr.flags |= RPC_FLG_LAST;
128 if (data_len_left % 8) {
129 ss_padding_len = 8 - (data_len_left % 8);
130 DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
136 * Set up the header lengths.
139 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
140 data_len + ss_padding_len +
141 RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
142 p->hdr.auth_len = NTLMSSP_SIG_SIZE;
146 * Init the parse struct to point at the outgoing
150 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
151 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
153 /* Store the header in the data stream. */
154 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
155 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
156 prs_mem_free(&outgoing_pdu);
160 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
161 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
162 prs_mem_free(&outgoing_pdu);
166 /* Copy the data into the PDU. */
168 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
169 DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
170 prs_mem_free(&outgoing_pdu);
174 /* Copy the sign/seal padding data. */
175 if (ss_padding_len) {
178 memset(pad, '\0', 8);
179 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
180 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
181 (unsigned int)ss_padding_len));
182 prs_mem_free(&outgoing_pdu);
188 /* Now write out the auth header and null blob. */
189 if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
190 auth_type = RPC_NTLMSSP_AUTH_TYPE;
192 auth_type = RPC_SPNEGO_AUTH_TYPE;
194 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
195 auth_level = RPC_AUTH_LEVEL_PRIVACY;
197 auth_level = RPC_AUTH_LEVEL_INTEGRITY;
200 init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
201 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
202 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
203 prs_mem_free(&outgoing_pdu);
207 /* Generate the sign blob. */
209 switch (p->auth.auth_level) {
210 case PIPE_AUTH_LEVEL_PRIVACY:
211 /* Data portion is encrypted. */
212 status = ntlmssp_seal_packet(a->ntlmssp_state,
213 (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
214 data_len + ss_padding_len,
215 (unsigned char *)prs_data_p(&outgoing_pdu),
216 (size_t)prs_offset(&outgoing_pdu),
218 if (!NT_STATUS_IS_OK(status)) {
219 data_blob_free(&auth_blob);
220 prs_mem_free(&outgoing_pdu);
224 case PIPE_AUTH_LEVEL_INTEGRITY:
225 /* Data is signed. */
226 status = ntlmssp_sign_packet(a->ntlmssp_state,
227 (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
228 data_len + ss_padding_len,
229 (unsigned char *)prs_data_p(&outgoing_pdu),
230 (size_t)prs_offset(&outgoing_pdu),
232 if (!NT_STATUS_IS_OK(status)) {
233 data_blob_free(&auth_blob);
234 prs_mem_free(&outgoing_pdu);
239 prs_mem_free(&outgoing_pdu);
243 /* Append the auth blob. */
244 if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
245 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
246 (unsigned int)NTLMSSP_SIG_SIZE));
247 data_blob_free(&auth_blob);
248 prs_mem_free(&outgoing_pdu);
252 data_blob_free(&auth_blob);
255 * Setup the counts for this PDU.
258 p->out_data.data_sent_length += data_len;
259 p->out_data.current_pdu_len = p->hdr.frag_len;
260 p->out_data.current_pdu_sent = 0;
262 prs_mem_free(&outgoing_pdu);
266 /*******************************************************************
267 Generate the next PDU to be returned from the data in p->rdata.
268 Return an schannel authenticated fragment.
269 ********************************************************************/
271 static BOOL create_next_pdu_schannel(pipes_struct *p)
273 RPC_HDR_RESP hdr_resp;
274 uint32 ss_padding_len = 0;
276 uint32 data_space_available;
277 uint32 data_len_left;
278 prs_struct outgoing_pdu;
282 * If we're in the fault state, keep returning fault PDU's until
283 * the pipe gets closed. JRA.
287 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
291 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
293 /* Change the incoming request header to a response. */
294 p->hdr.pkt_type = RPC_RESPONSE;
296 /* Set up rpc header flags. */
297 if (p->out_data.data_sent_length == 0) {
298 p->hdr.flags = RPC_FLG_FIRST;
304 * Work out how much we can fit in a single PDU.
307 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
310 * Ensure there really is data left to send.
314 DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
318 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
319 RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
322 * The amount we send is the minimum of the available
323 * space and the amount left to send.
326 data_len = MIN(data_len_left, data_space_available);
329 * Set up the alloc hint. This should be the data left to
333 hdr_resp.alloc_hint = data_len_left;
336 * Work out if this PDU will be the last.
339 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
340 p->hdr.flags |= RPC_FLG_LAST;
341 if (data_len_left % 8) {
342 ss_padding_len = 8 - (data_len_left % 8);
343 DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
348 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
349 RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
350 p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
353 * Init the parse struct to point at the outgoing
357 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
358 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
360 /* Store the header in the data stream. */
361 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
362 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
363 prs_mem_free(&outgoing_pdu);
367 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
368 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
369 prs_mem_free(&outgoing_pdu);
373 /* Store the current offset. */
374 data_pos = prs_offset(&outgoing_pdu);
376 /* Copy the data into the PDU. */
378 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
379 DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
380 prs_mem_free(&outgoing_pdu);
384 /* Copy the sign/seal padding data. */
385 if (ss_padding_len) {
387 memset(pad, '\0', 8);
388 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
389 DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
390 prs_mem_free(&outgoing_pdu);
397 * Schannel processing.
400 RPC_HDR_AUTH auth_info;
401 RPC_AUTH_SCHANNEL_CHK verf;
403 data = prs_data_p(&outgoing_pdu) + data_pos;
404 /* Check it's the type of reply we were expecting to decode */
406 init_rpc_hdr_auth(&auth_info,
407 RPC_SCHANNEL_AUTH_TYPE,
408 p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
409 RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
412 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
413 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
414 prs_mem_free(&outgoing_pdu);
418 schannel_encode(p->auth.a_u.schannel_auth,
421 &verf, data, data_len + ss_padding_len);
423 if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
424 &verf, &outgoing_pdu, 0)) {
425 prs_mem_free(&outgoing_pdu);
429 p->auth.a_u.schannel_auth->seq_num++;
433 * Setup the counts for this PDU.
436 p->out_data.data_sent_length += data_len;
437 p->out_data.current_pdu_len = p->hdr.frag_len;
438 p->out_data.current_pdu_sent = 0;
440 prs_mem_free(&outgoing_pdu);
444 /*******************************************************************
445 Generate the next PDU to be returned from the data in p->rdata.
446 No authentication done.
447 ********************************************************************/
449 static BOOL create_next_pdu_noauth(pipes_struct *p)
451 RPC_HDR_RESP hdr_resp;
453 uint32 data_space_available;
454 uint32 data_len_left;
455 prs_struct outgoing_pdu;
458 * If we're in the fault state, keep returning fault PDU's until
459 * the pipe gets closed. JRA.
463 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
467 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
469 /* Change the incoming request header to a response. */
470 p->hdr.pkt_type = RPC_RESPONSE;
472 /* Set up rpc header flags. */
473 if (p->out_data.data_sent_length == 0) {
474 p->hdr.flags = RPC_FLG_FIRST;
480 * Work out how much we can fit in a single PDU.
483 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
486 * Ensure there really is data left to send.
490 DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
494 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
497 * The amount we send is the minimum of the available
498 * space and the amount left to send.
501 data_len = MIN(data_len_left, data_space_available);
504 * Set up the alloc hint. This should be the data left to
508 hdr_resp.alloc_hint = data_len_left;
511 * Work out if this PDU will be the last.
514 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
515 p->hdr.flags |= RPC_FLG_LAST;
519 * Set up the header lengths.
522 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
526 * Init the parse struct to point at the outgoing
530 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
531 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
533 /* Store the header in the data stream. */
534 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
535 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
536 prs_mem_free(&outgoing_pdu);
540 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
541 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
542 prs_mem_free(&outgoing_pdu);
546 /* Copy the data into the PDU. */
548 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
549 DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
550 prs_mem_free(&outgoing_pdu);
555 * Setup the counts for this PDU.
558 p->out_data.data_sent_length += data_len;
559 p->out_data.current_pdu_len = p->hdr.frag_len;
560 p->out_data.current_pdu_sent = 0;
562 prs_mem_free(&outgoing_pdu);
566 /*******************************************************************
567 Generate the next PDU to be returned from the data in p->rdata.
568 ********************************************************************/
570 BOOL create_next_pdu(pipes_struct *p)
572 switch(p->auth.auth_level) {
573 case PIPE_AUTH_LEVEL_NONE:
574 case PIPE_AUTH_LEVEL_CONNECT:
575 /* This is incorrect for auth level connect. Fixme. JRA */
576 return create_next_pdu_noauth(p);
579 switch(p->auth.auth_type) {
580 case PIPE_AUTH_TYPE_NTLMSSP:
581 case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
582 return create_next_pdu_ntlmssp(p);
583 case PIPE_AUTH_TYPE_SCHANNEL:
584 return create_next_pdu_schannel(p);
590 DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
591 (unsigned int)p->auth.auth_level,
592 (unsigned int)p->auth.auth_type));
596 /*******************************************************************
597 Process an NTLMSSP authentication response.
598 If this function succeeds, the user has been authenticated
599 and their domain, name and calling workstation stored in
601 *******************************************************************/
603 static BOOL pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
607 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
609 DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
613 memset(p->user_name, '\0', sizeof(p->user_name));
614 memset(p->pipe_user_name, '\0', sizeof(p->pipe_user_name));
615 memset(p->domain, '\0', sizeof(p->domain));
616 memset(p->wks, '\0', sizeof(p->wks));
618 /* Set up for non-authenticated user. */
619 TALLOC_FREE(p->pipe_user.nt_user_token);
620 p->pipe_user.ut.ngroups = 0;
621 SAFE_FREE( p->pipe_user.ut.groups);
623 /* this has to be done as root in order to verify the password */
625 status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
628 /* Don't generate a reply. */
629 data_blob_free(&reply);
631 if (!NT_STATUS_IS_OK(status)) {
635 /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
636 ensure the underlying NTLMSSP flags are also set. If not we should
639 if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
640 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
641 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
642 "but client declined signing.\n",
647 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
648 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
649 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
650 "but client declined sealing.\n",
656 fstrcpy(p->user_name, a->ntlmssp_state->user);
657 fstrcpy(p->pipe_user_name, a->server_info->unix_name);
658 fstrcpy(p->domain, a->ntlmssp_state->domain);
659 fstrcpy(p->wks, a->ntlmssp_state->workstation);
661 DEBUG(5,("pipe_ntlmssp_verify_final: OK: user: %s domain: %s workstation: %s\n",
662 p->user_name, p->domain, p->wks));
665 * Store the UNIX credential data (uid/gid pair) in the pipe structure.
668 p->pipe_user.ut.uid = a->server_info->uid;
669 p->pipe_user.ut.gid = a->server_info->gid;
672 * Copy the session key from the ntlmssp state.
675 data_blob_free(&p->session_key);
676 p->session_key = data_blob(a->ntlmssp_state->session_key.data, a->ntlmssp_state->session_key.length);
677 if (!p->session_key.data) {
681 p->pipe_user.ut.ngroups = a->server_info->n_groups;
682 if (p->pipe_user.ut.ngroups) {
683 if (!(p->pipe_user.ut.groups = memdup(a->server_info->groups,
684 sizeof(gid_t) * p->pipe_user.ut.ngroups))) {
685 DEBUG(0,("pipe_ntlmssp_verify_final: failed to memdup group list to p->pipe_user.groups\n"));
686 data_blob_free(&p->session_key);
691 if (a->server_info->ptok) {
692 p->pipe_user.nt_user_token =
693 dup_nt_token(NULL, a->server_info->ptok);
694 if (!p->pipe_user.nt_user_token) {
695 DEBUG(1,("pipe_ntlmssp_verify_final: dup_nt_token failed.\n"));
696 data_blob_free(&p->session_key);
697 SAFE_FREE(p->pipe_user.ut.groups);
702 DEBUG(1,("pipe_ntlmssp_verify_final: Error: Authmodule failed to provide nt_user_token\n"));
703 data_blob_free(&p->session_key);
704 SAFE_FREE(p->pipe_user.ut.groups);
711 /*******************************************************************
712 The switch table for the pipe names and the functions to handle them.
713 *******************************************************************/
720 struct api_struct *cmds;
724 static struct rpc_table *rpc_lookup;
725 static int rpc_lookup_size;
727 /*******************************************************************
728 This is the "stage3" NTLMSSP response after a bind request and reply.
729 *******************************************************************/
731 BOOL api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
733 RPC_HDR_AUTH auth_info;
739 DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
741 if (p->hdr.auth_len == 0) {
742 DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
746 /* 4 bytes padding. */
747 if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
748 DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
753 * Decode the authentication verifier response.
756 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
757 DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
761 if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
762 DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
763 (unsigned int)auth_info.auth_type ));
767 blob = data_blob(NULL,p->hdr.auth_len);
769 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
770 DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
771 (unsigned int)p->hdr.auth_len ));
776 * The following call actually checks the challenge/response data.
777 * for correctness against the given DOMAIN\user name.
780 if (!pipe_ntlmssp_verify_final(p, &blob)) {
784 data_blob_free(&blob);
786 p->pipe_bound = True;
792 data_blob_free(&blob);
793 free_pipe_ntlmssp_auth_data(&p->auth);
794 p->auth.a_u.auth_ntlmssp_state = NULL;
799 /*******************************************************************
800 Marshall a bind_nak pdu.
801 *******************************************************************/
803 static BOOL setup_bind_nak(pipes_struct *p)
805 prs_struct outgoing_rpc;
809 /* Free any memory in the current return data buffer. */
810 prs_mem_free(&p->out_data.rdata);
813 * Marshall directly into the outgoing PDU space. We
814 * must do this as we need to set to the bind response
815 * header and are never sending more than one PDU here.
818 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
819 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
822 * Initialize a bind_nak header.
825 init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
826 p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
829 * Marshall the header into the outgoing PDU.
832 if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
833 DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
834 prs_mem_free(&outgoing_rpc);
839 * Now add the reject reason.
842 if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
843 prs_mem_free(&outgoing_rpc);
847 p->out_data.data_sent_length = 0;
848 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
849 p->out_data.current_pdu_sent = 0;
851 if (p->auth.auth_data_free_func) {
852 (*p->auth.auth_data_free_func)(&p->auth);
854 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
855 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
856 p->pipe_bound = False;
861 /*******************************************************************
862 Marshall a fault pdu.
863 *******************************************************************/
865 BOOL setup_fault_pdu(pipes_struct *p, NTSTATUS status)
867 prs_struct outgoing_pdu;
869 RPC_HDR_RESP hdr_resp;
870 RPC_HDR_FAULT fault_resp;
872 /* Free any memory in the current return data buffer. */
873 prs_mem_free(&p->out_data.rdata);
876 * Marshall directly into the outgoing PDU space. We
877 * must do this as we need to set to the bind response
878 * header and are never sending more than one PDU here.
881 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
882 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
885 * Initialize a fault header.
888 init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
889 p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
892 * Initialize the HDR_RESP and FAULT parts of the PDU.
895 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
897 fault_resp.status = status;
898 fault_resp.reserved = 0;
901 * Marshall the header into the outgoing PDU.
904 if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
905 DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
906 prs_mem_free(&outgoing_pdu);
910 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
911 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
912 prs_mem_free(&outgoing_pdu);
916 if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
917 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
918 prs_mem_free(&outgoing_pdu);
922 p->out_data.data_sent_length = 0;
923 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
924 p->out_data.current_pdu_sent = 0;
926 prs_mem_free(&outgoing_pdu);
931 /*******************************************************************
932 Marshall a cancel_ack pdu.
933 We should probably check the auth-verifier here.
934 *******************************************************************/
936 BOOL setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
938 prs_struct outgoing_pdu;
939 RPC_HDR ack_reply_hdr;
941 /* Free any memory in the current return data buffer. */
942 prs_mem_free(&p->out_data.rdata);
945 * Marshall directly into the outgoing PDU space. We
946 * must do this as we need to set to the bind response
947 * header and are never sending more than one PDU here.
950 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
951 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
954 * Initialize a cancel_ack header.
957 init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
958 p->hdr.call_id, RPC_HEADER_LEN, 0);
961 * Marshall the header into the outgoing PDU.
964 if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
965 DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
966 prs_mem_free(&outgoing_pdu);
970 p->out_data.data_sent_length = 0;
971 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
972 p->out_data.current_pdu_sent = 0;
974 prs_mem_free(&outgoing_pdu);
979 /*******************************************************************
980 Ensure a bind request has the correct abstract & transfer interface.
981 Used to reject unknown binds from Win2k.
982 *******************************************************************/
984 BOOL check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
985 RPC_IFACE* transfer, uint32 context_id)
987 char *pipe_name = p->name;
991 fstrcpy(pname,"\\PIPE\\");
992 fstrcat(pname,pipe_name);
994 DEBUG(3,("check_bind_req for %s\n", pname));
996 /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
998 for ( i=0; pipe_names[i].client_pipe; i++ ) {
999 DEBUG(10,("checking %s\n", pipe_names[i].client_pipe));
1000 if ( strequal(pipe_names[i].client_pipe, pname)
1001 && (abstract->version == pipe_names[i].abstr_syntax.version)
1002 && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct uuid)) == 0)
1003 && (transfer->version == pipe_names[i].trans_syntax.version)
1004 && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct uuid)) == 0) ) {
1005 struct api_struct *fns = NULL;
1007 PIPE_RPC_FNS *context_fns;
1009 if ( !(context_fns = SMB_MALLOC_P(PIPE_RPC_FNS)) ) {
1010 DEBUG(0,("check_bind_req: malloc() failed!\n"));
1014 /* save the RPC function table associated with this bind */
1016 get_pipe_fns(i, &fns, &n_fns);
1018 context_fns->cmds = fns;
1019 context_fns->n_cmds = n_fns;
1020 context_fns->context_id = context_id;
1022 /* add to the list of open contexts */
1024 DLIST_ADD( p->contexts, context_fns );
1030 if(pipe_names[i].client_pipe == NULL) {
1037 /*******************************************************************
1038 Register commands to an RPC pipe
1039 *******************************************************************/
1041 NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
1043 struct rpc_table *rpc_entry;
1045 if (!clnt || !srv || !cmds) {
1046 return NT_STATUS_INVALID_PARAMETER;
1049 if (version != SMB_RPC_INTERFACE_VERSION) {
1050 DEBUG(0,("Can't register rpc commands!\n"
1051 "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
1052 ", while this version of samba uses version %d!\n",
1053 version,SMB_RPC_INTERFACE_VERSION));
1054 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1059 * we still need to make sure that don't register the same commands twice!!!
1064 /* We use a temporary variable because this call can fail and
1065 rpc_lookup will still be valid afterwards. It could then succeed if
1066 called again later */
1068 rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
1069 if (NULL == rpc_entry) {
1071 DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
1072 return NT_STATUS_NO_MEMORY;
1074 rpc_lookup = rpc_entry;
1077 rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
1078 ZERO_STRUCTP(rpc_entry);
1079 rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
1080 rpc_entry->pipe.srv = SMB_STRDUP(srv);
1081 rpc_entry->cmds = SMB_REALLOC_ARRAY(rpc_entry->cmds, struct api_struct, rpc_entry->n_cmds + size);
1082 if (!rpc_entry->cmds) {
1083 return NT_STATUS_NO_MEMORY;
1085 memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds, size * sizeof(struct api_struct));
1086 rpc_entry->n_cmds += size;
1088 return NT_STATUS_OK;
1091 /*******************************************************************
1092 Handle a SPNEGO krb5 bind auth.
1093 *******************************************************************/
1095 static BOOL pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
1096 DATA_BLOB *psecblob, prs_struct *pout_auth)
1101 /*******************************************************************
1102 Handle the first part of a SPNEGO bind auth.
1103 *******************************************************************/
1105 static BOOL pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
1106 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1112 char *OIDs[ASN1_MAX_OIDS];
1115 BOOL got_kerberos_mechanism = False;
1116 AUTH_NTLMSSP_STATE *a = NULL;
1117 RPC_HDR_AUTH auth_info;
1119 ZERO_STRUCT(secblob);
1121 ZERO_STRUCT(response);
1123 /* Grab the SPNEGO blob. */
1124 blob = data_blob(NULL,p->hdr.auth_len);
1126 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1127 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
1128 (unsigned int)p->hdr.auth_len ));
1132 if (blob.data[0] != ASN1_APPLICATION(0)) {
1136 /* parse out the OIDs and the first sec blob */
1137 if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
1138 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
1142 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
1143 got_kerberos_mechanism = True;
1146 for (i=0;OIDs[i];i++) {
1147 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
1150 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
1152 if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
1153 BOOL ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
1154 data_blob_free(&secblob);
1155 data_blob_free(&blob);
1159 if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
1160 /* Free any previous auth type. */
1161 free_pipe_ntlmssp_auth_data(&p->auth);
1164 /* Initialize the NTLM engine. */
1165 status = auth_ntlmssp_start(&a);
1166 if (!NT_STATUS_IS_OK(status)) {
1171 * Pass the first security blob of data to it.
1172 * This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
1173 * which means we need another packet to complete the bind.
1176 status = auth_ntlmssp_update(a, secblob, &chal);
1178 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1179 DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
1183 /* Generate the response blob we need for step 2 of the bind. */
1184 response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
1186 /* Copy the blob into the pout_auth parse struct */
1187 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1188 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1189 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
1193 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1194 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
1198 p->auth.a_u.auth_ntlmssp_state = a;
1199 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1200 p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
1202 data_blob_free(&blob);
1203 data_blob_free(&secblob);
1204 data_blob_free(&chal);
1205 data_blob_free(&response);
1207 /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
1212 data_blob_free(&blob);
1213 data_blob_free(&secblob);
1214 data_blob_free(&chal);
1215 data_blob_free(&response);
1217 p->auth.a_u.auth_ntlmssp_state = NULL;
1222 /*******************************************************************
1223 Handle the second part of a SPNEGO bind auth.
1224 *******************************************************************/
1226 static BOOL pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
1227 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1229 RPC_HDR_AUTH auth_info;
1230 DATA_BLOB spnego_blob;
1231 DATA_BLOB auth_blob;
1232 DATA_BLOB auth_reply;
1234 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1236 ZERO_STRUCT(spnego_blob);
1237 ZERO_STRUCT(auth_blob);
1238 ZERO_STRUCT(auth_reply);
1239 ZERO_STRUCT(response);
1241 if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
1242 DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
1246 /* Grab the SPNEGO blob. */
1247 spnego_blob = data_blob(NULL,p->hdr.auth_len);
1249 if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
1250 DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
1251 (unsigned int)p->hdr.auth_len ));
1255 if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
1256 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
1260 if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
1261 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
1266 * The following call actually checks the challenge/response data.
1267 * for correctness against the given DOMAIN\user name.
1270 if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
1274 data_blob_free(&spnego_blob);
1275 data_blob_free(&auth_blob);
1277 /* Generate the spnego "accept completed" blob - no incoming data. */
1278 response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
1280 /* Copy the blob into the pout_auth parse struct */
1281 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1282 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1283 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
1287 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1288 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
1292 data_blob_free(&auth_reply);
1293 data_blob_free(&response);
1295 p->pipe_bound = True;
1301 data_blob_free(&spnego_blob);
1302 data_blob_free(&auth_blob);
1303 data_blob_free(&auth_reply);
1304 data_blob_free(&response);
1306 free_pipe_ntlmssp_auth_data(&p->auth);
1307 p->auth.a_u.auth_ntlmssp_state = NULL;
1312 /*******************************************************************
1313 Handle an schannel bind auth.
1314 *******************************************************************/
1316 static BOOL pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1317 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1319 RPC_HDR_AUTH auth_info;
1320 RPC_AUTH_SCHANNEL_NEG neg;
1321 RPC_AUTH_VERIFIER auth_verifier;
1323 struct dcinfo *pdcinfo;
1326 if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
1327 DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
1332 * The neg.myname key here must match the remote computer name
1333 * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
1334 * operations that use credentials.
1338 ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
1342 DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
1346 p->auth.a_u.schannel_auth = TALLOC_P(p->pipe_state_mem_ctx, struct schannel_auth_struct);
1347 if (!p->auth.a_u.schannel_auth) {
1348 TALLOC_FREE(pdcinfo);
1352 memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
1353 memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
1354 sizeof(pdcinfo->sess_key));
1356 TALLOC_FREE(pdcinfo);
1358 p->auth.a_u.schannel_auth->seq_num = 0;
1361 * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
1362 * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
1363 * struct of the person who opened the pipe. I need to test this further. JRA.
1366 init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1367 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1368 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1372 /*** SCHANNEL verifier ***/
1374 init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
1375 if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
1376 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
1380 prs_align(pout_auth);
1383 if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
1387 DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
1388 neg.domain, neg.myname));
1390 /* We're finished with this bind - no more packets. */
1391 p->auth.auth_data_free_func = NULL;
1392 p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
1394 p->pipe_bound = True;
1399 /*******************************************************************
1400 Handle an NTLMSSP bind auth.
1401 *******************************************************************/
1403 static BOOL pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1404 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1406 RPC_HDR_AUTH auth_info;
1410 AUTH_NTLMSSP_STATE *a = NULL;
1413 ZERO_STRUCT(response);
1415 /* Grab the NTLMSSP blob. */
1416 blob = data_blob(NULL,p->hdr.auth_len);
1418 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1419 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
1420 (unsigned int)p->hdr.auth_len ));
1424 if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
1425 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
1429 /* We have an NTLMSSP blob. */
1430 status = auth_ntlmssp_start(&a);
1431 if (!NT_STATUS_IS_OK(status)) {
1432 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
1433 nt_errstr(status) ));
1437 status = auth_ntlmssp_update(a, blob, &response);
1438 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1439 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
1440 nt_errstr(status) ));
1444 data_blob_free(&blob);
1446 /* Copy the blob into the pout_auth parse struct */
1447 init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1448 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1449 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1453 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1454 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
1458 p->auth.a_u.auth_ntlmssp_state = a;
1459 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1460 p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
1462 data_blob_free(&blob);
1463 data_blob_free(&response);
1465 DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
1467 /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
1472 data_blob_free(&blob);
1473 data_blob_free(&response);
1475 free_pipe_ntlmssp_auth_data(&p->auth);
1476 p->auth.a_u.auth_ntlmssp_state = NULL;
1480 /*******************************************************************
1481 Respond to a pipe bind request.
1482 *******************************************************************/
1484 BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
1488 RPC_HDR_AUTH auth_info;
1490 fstring ack_pipe_name;
1491 prs_struct out_hdr_ba;
1492 prs_struct out_auth;
1493 prs_struct outgoing_rpc;
1496 unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
1498 /* No rebinds on a bound pipe - use alter context. */
1499 if (p->pipe_bound) {
1500 DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound pipe %s.\n", p->pipe_srv_name));
1501 return setup_bind_nak(p);
1504 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1507 * Marshall directly into the outgoing PDU space. We
1508 * must do this as we need to set to the bind response
1509 * header and are never sending more than one PDU here.
1512 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1515 * Setup the memory to marshall the ba header, and the
1519 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1520 DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
1521 prs_mem_free(&outgoing_rpc);
1525 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1526 DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
1527 prs_mem_free(&outgoing_rpc);
1528 prs_mem_free(&out_hdr_ba);
1532 DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
1535 * Try and find the correct pipe name to ensure
1536 * that this is a pipe name we support.
1540 for (i = 0; i < rpc_lookup_size; i++) {
1541 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1542 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1543 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1544 fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1549 if (i == rpc_lookup_size) {
1550 if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
1551 DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
1553 prs_mem_free(&outgoing_rpc);
1554 prs_mem_free(&out_hdr_ba);
1555 prs_mem_free(&out_auth);
1557 return setup_bind_nak(p);
1560 for (i = 0; i < rpc_lookup_size; i++) {
1561 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1562 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1563 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1564 fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1569 if (i == rpc_lookup_size) {
1570 DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
1575 /* decode the bind request */
1576 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1577 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
1581 /* name has to be \PIPE\xxxxx */
1582 fstrcpy(ack_pipe_name, "\\PIPE\\");
1583 fstrcat(ack_pipe_name, p->pipe_srv_name);
1585 DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
1588 * Check if this is an authenticated bind request.
1591 if (p->hdr.auth_len) {
1593 * Decode the authentication verifier.
1596 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1597 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1601 auth_type = auth_info.auth_type;
1603 /* Work out if we have to sign or seal etc. */
1604 switch (auth_info.auth_level) {
1605 case RPC_AUTH_LEVEL_INTEGRITY:
1606 p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
1608 case RPC_AUTH_LEVEL_PRIVACY:
1609 p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
1612 DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
1613 (unsigned int)auth_info.auth_level ));
1617 ZERO_STRUCT(auth_info);
1620 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1623 case RPC_NTLMSSP_AUTH_TYPE:
1624 if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1630 case RPC_SCHANNEL_AUTH_TYPE:
1631 if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1636 case RPC_SPNEGO_AUTH_TYPE:
1637 if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
1642 case RPC_ANONYMOUS_AUTH_TYPE:
1643 /* Unauthenticated bind request. */
1644 /* We're finished - no more packets. */
1645 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
1646 /* We must set the pipe auth_level here also. */
1647 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
1648 p->pipe_bound = True;
1652 DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
1657 * Create the bind response struct.
1660 /* If the requested abstract synt uuid doesn't match our client pipe,
1661 reject the bind_ack & set the transfer interface synt to all 0's,
1662 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1664 Needed when adding entries to a DACL from NT5 - SK */
1666 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1667 hdr_rb.rpc_context[0].context_id )) {
1668 init_rpc_hdr_ba(&hdr_ba,
1669 RPC_MAX_PDU_FRAG_LEN,
1670 RPC_MAX_PDU_FRAG_LEN,
1674 &hdr_rb.rpc_context[0].transfer[0]);
1676 RPC_IFACE null_interface;
1677 ZERO_STRUCT(null_interface);
1678 /* Rejection reason: abstract syntax not supported */
1679 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1680 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1681 ack_pipe_name, 0x1, 0x2, 0x1,
1683 p->pipe_bound = False;
1690 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1691 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
1696 * Create the header, now we know the length.
1699 if (prs_offset(&out_auth)) {
1700 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1703 init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
1705 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1709 * Marshall the header into the outgoing PDU.
1712 if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1713 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
1718 * Now add the RPC_HDR_BA and any auth needed.
1721 if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1722 DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
1726 if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1727 DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
1732 * Setup the lengths for the initial reply.
1735 p->out_data.data_sent_length = 0;
1736 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1737 p->out_data.current_pdu_sent = 0;
1739 prs_mem_free(&out_hdr_ba);
1740 prs_mem_free(&out_auth);
1746 prs_mem_free(&outgoing_rpc);
1747 prs_mem_free(&out_hdr_ba);
1748 prs_mem_free(&out_auth);
1749 return setup_bind_nak(p);
1752 /****************************************************************************
1753 Deal with an alter context call. Can be third part of 3 leg auth request for
1755 ****************************************************************************/
1757 BOOL api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
1761 RPC_HDR_AUTH auth_info;
1763 fstring ack_pipe_name;
1764 prs_struct out_hdr_ba;
1765 prs_struct out_auth;
1766 prs_struct outgoing_rpc;
1769 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1772 * Marshall directly into the outgoing PDU space. We
1773 * must do this as we need to set to the bind response
1774 * header and are never sending more than one PDU here.
1777 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1780 * Setup the memory to marshall the ba header, and the
1784 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1785 DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
1786 prs_mem_free(&outgoing_rpc);
1790 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1791 DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
1792 prs_mem_free(&outgoing_rpc);
1793 prs_mem_free(&out_hdr_ba);
1797 DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
1799 /* decode the alter context request */
1800 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1801 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
1805 /* secondary address CAN be NULL
1806 * as the specs say it's ignored.
1807 * It MUST be NULL to have the spoolss working.
1809 fstrcpy(ack_pipe_name,"");
1811 DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
1814 * Check if this is an authenticated alter context request.
1817 if (p->hdr.auth_len != 0) {
1819 * Decode the authentication verifier.
1822 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1823 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1828 * Currently only the SPNEGO auth type uses the alter ctx
1829 * response in place of the NTLMSSP auth3 type.
1832 if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
1833 /* We can only finish if the pipe is unbound. */
1834 if (!p->pipe_bound) {
1835 if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
1843 ZERO_STRUCT(auth_info);
1846 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1849 * Create the bind response struct.
1852 /* If the requested abstract synt uuid doesn't match our client pipe,
1853 reject the bind_ack & set the transfer interface synt to all 0's,
1854 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1856 Needed when adding entries to a DACL from NT5 - SK */
1858 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1859 hdr_rb.rpc_context[0].context_id )) {
1860 init_rpc_hdr_ba(&hdr_ba,
1861 RPC_MAX_PDU_FRAG_LEN,
1862 RPC_MAX_PDU_FRAG_LEN,
1866 &hdr_rb.rpc_context[0].transfer[0]);
1868 RPC_IFACE null_interface;
1869 ZERO_STRUCT(null_interface);
1870 /* Rejection reason: abstract syntax not supported */
1871 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1872 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1873 ack_pipe_name, 0x1, 0x2, 0x1,
1875 p->pipe_bound = False;
1882 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1883 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
1888 * Create the header, now we know the length.
1891 if (prs_offset(&out_auth)) {
1892 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1895 init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
1897 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1901 * Marshall the header into the outgoing PDU.
1904 if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1905 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
1910 * Now add the RPC_HDR_BA and any auth needed.
1913 if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1914 DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
1918 if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1919 DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
1924 * Setup the lengths for the initial reply.
1927 p->out_data.data_sent_length = 0;
1928 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1929 p->out_data.current_pdu_sent = 0;
1931 prs_mem_free(&out_hdr_ba);
1932 prs_mem_free(&out_auth);
1938 prs_mem_free(&outgoing_rpc);
1939 prs_mem_free(&out_hdr_ba);
1940 prs_mem_free(&out_auth);
1941 return setup_bind_nak(p);
1944 /****************************************************************************
1945 Deal with NTLMSSP sign & seal processing on an RPC request.
1946 ****************************************************************************/
1948 BOOL api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
1949 uint32 *p_ss_padding_len, NTSTATUS *pstatus)
1951 RPC_HDR_AUTH auth_info;
1952 uint32 auth_len = p->hdr.auth_len;
1953 uint32 save_offset = prs_offset(rpc_in);
1954 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1955 unsigned char *data = NULL;
1957 unsigned char *full_packet_data = NULL;
1958 size_t full_packet_data_len;
1959 DATA_BLOB auth_blob;
1961 *pstatus = NT_STATUS_OK;
1963 if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
1968 *pstatus = NT_STATUS_INVALID_PARAMETER;
1972 /* Ensure there's enough data for an authenticated request. */
1973 if ((auth_len > RPC_MAX_SIGN_SIZE) ||
1974 (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
1975 DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
1976 (unsigned int)auth_len ));
1977 *pstatus = NT_STATUS_INVALID_PARAMETER;
1982 * We need the full packet data + length (minus auth stuff) as well as the packet data + length
1983 * after the RPC header.
1984 * We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
1985 * functions as NTLMv2 checks the rpc headers also.
1988 data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
1989 data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
1991 full_packet_data = p->in_data.current_in_pdu;
1992 full_packet_data_len = p->hdr.frag_len - auth_len;
1994 /* Pull the auth header and the following data into a blob. */
1995 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
1996 DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
1997 (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
1998 *pstatus = NT_STATUS_INVALID_PARAMETER;
2002 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2003 DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
2004 *pstatus = NT_STATUS_INVALID_PARAMETER;
2008 auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
2009 auth_blob.length = auth_len;
2011 switch (p->auth.auth_level) {
2012 case PIPE_AUTH_LEVEL_PRIVACY:
2013 /* Data is encrypted. */
2014 *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
2017 full_packet_data_len,
2019 if (!NT_STATUS_IS_OK(*pstatus)) {
2023 case PIPE_AUTH_LEVEL_INTEGRITY:
2024 /* Data is signed. */
2025 *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
2028 full_packet_data_len,
2030 if (!NT_STATUS_IS_OK(*pstatus)) {
2035 *pstatus = NT_STATUS_INVALID_PARAMETER;
2040 * Return the current pointer to the data offset.
2043 if(!prs_set_offset(rpc_in, save_offset)) {
2044 DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
2045 (unsigned int)save_offset ));
2046 *pstatus = NT_STATUS_INVALID_PARAMETER;
2051 * Remember the padding length. We must remove it from the real data
2052 * stream once the sign/seal is done.
2055 *p_ss_padding_len = auth_info.auth_pad_len;
2060 /****************************************************************************
2061 Deal with schannel processing on an RPC request.
2062 ****************************************************************************/
2064 BOOL api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
2068 uint32 save_offset = prs_offset(rpc_in);
2069 RPC_HDR_AUTH auth_info;
2070 RPC_AUTH_SCHANNEL_CHK schannel_chk;
2072 auth_len = p->hdr.auth_len;
2074 if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
2075 DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
2080 * The following is that length of the data we must verify or unseal.
2081 * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
2082 * preceeding the auth_data.
2085 if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
2086 DEBUG(0,("Incorrect frag %u, auth %u.\n",
2087 (unsigned int)p->hdr.frag_len,
2088 (unsigned int)auth_len ));
2092 data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
2093 RPC_HDR_AUTH_LEN - auth_len;
2095 DEBUG(5,("data %d auth %d\n", data_len, auth_len));
2097 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2098 DEBUG(0,("cannot move offset to %u.\n",
2099 (unsigned int)RPC_HDR_REQ_LEN + data_len ));
2103 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2104 DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
2108 if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
2109 DEBUG(0,("Invalid auth info %d on schannel\n",
2110 auth_info.auth_type));
2114 if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
2115 DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
2119 if (!schannel_decode(p->auth.a_u.schannel_auth,
2121 SENDER_IS_INITIATOR,
2123 prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
2124 DEBUG(3,("failed to decode PDU\n"));
2129 * Return the current pointer to the data offset.
2132 if(!prs_set_offset(rpc_in, save_offset)) {
2133 DEBUG(0,("failed to set offset back to %u\n",
2134 (unsigned int)save_offset ));
2138 /* The sequence number gets incremented on both send and receive. */
2139 p->auth.a_u.schannel_auth->seq_num++;
2142 * Remember the padding length. We must remove it from the real data
2143 * stream once the sign/seal is done.
2146 *p_ss_padding_len = auth_info.auth_pad_len;
2151 /****************************************************************************
2152 Return a user struct for a pipe user.
2153 ****************************************************************************/
2155 struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
2157 if (p->pipe_bound &&
2158 (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP ||
2159 (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2160 memcpy(user, &p->pipe_user, sizeof(struct current_user));
2162 memcpy(user, ¤t_user, sizeof(struct current_user));
2168 /****************************************************************************
2169 Find the set of RPC functions associated with this context_id
2170 ****************************************************************************/
2172 static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
2174 PIPE_RPC_FNS *fns = NULL;
2175 PIPE_RPC_FNS *tmp = NULL;
2178 DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
2182 for (tmp=list; tmp; tmp=tmp->next ) {
2183 if ( tmp->context_id == context_id )
2192 /****************************************************************************
2194 ****************************************************************************/
2196 void free_pipe_rpc_context( PIPE_RPC_FNS *list )
2198 PIPE_RPC_FNS *tmp = list;
2210 /****************************************************************************
2211 Find the correct RPC function to call for this request.
2212 If the pipe is authenticated then become the correct UNIX user
2213 before doing the call.
2214 ****************************************************************************/
2216 BOOL api_pipe_request(pipes_struct *p)
2219 BOOL changed_user = False;
2220 PIPE_RPC_FNS *pipe_fns;
2222 if (p->pipe_bound &&
2223 ((p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) ||
2224 (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2225 if(!become_authenticated_pipe_user(p)) {
2226 prs_mem_free(&p->out_data.rdata);
2229 changed_user = True;
2232 DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
2234 /* get the set of RPC functions for this context */
2236 pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
2239 set_current_rpc_talloc(p->mem_ctx);
2240 ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
2241 set_current_rpc_talloc(NULL);
2244 DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
2245 p->hdr_req.context_id, p->name));
2249 unbecome_authenticated_pipe_user();
2255 /*******************************************************************
2256 Calls the underlying RPC function for a named pipe.
2257 ********************************************************************/
2259 BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
2260 const struct api_struct *api_rpc_cmds, int n_cmds)
2264 uint32 offset1, offset2;
2266 /* interpret the command */
2267 DEBUG(4,("api_rpcTNP: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
2269 slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
2270 prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
2272 for (fn_num = 0; fn_num < n_cmds; fn_num++) {
2273 if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
2274 DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
2279 if (fn_num == n_cmds) {
2281 * For an unknown RPC just return a fault PDU but
2282 * return True to allow RPC's on the pipe to continue
2283 * and not put the pipe into fault state. JRA.
2285 DEBUG(4, ("unknown\n"));
2286 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2290 offset1 = prs_offset(&p->out_data.rdata);
2292 DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
2293 fn_num, api_rpc_cmds[fn_num].fn));
2294 /* do the actual command */
2295 if(!api_rpc_cmds[fn_num].fn(p)) {
2296 DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
2297 prs_mem_free(&p->out_data.rdata);
2301 if (p->bad_handle_fault_state) {
2302 DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
2303 p->bad_handle_fault_state = False;
2304 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
2308 slprintf(name, sizeof(name)-1, "out_%s", rpc_name);
2309 offset2 = prs_offset(&p->out_data.rdata);
2310 prs_set_offset(&p->out_data.rdata, offset1);
2311 prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
2312 prs_set_offset(&p->out_data.rdata, offset2);
2314 DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
2316 /* Check for buffer underflow in rpc parsing */
2318 if ((DEBUGLEVEL >= 10) &&
2319 (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
2320 size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
2321 char *data = SMB_MALLOC(data_len);
2323 DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
2325 prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
2334 /*******************************************************************
2335 *******************************************************************/
2337 void get_pipe_fns( int idx, struct api_struct **fns, int *n_fns )
2339 struct api_struct *cmds = NULL;
2344 lsa_get_pipe_fns( &cmds, &n_cmds );
2347 lsa_ds_get_pipe_fns( &cmds, &n_cmds );
2350 samr_get_pipe_fns( &cmds, &n_cmds );
2353 netlog_get_pipe_fns( &cmds, &n_cmds );
2356 srvsvc_get_pipe_fns( &cmds, &n_cmds );
2359 wkssvc_get_pipe_fns( &cmds, &n_cmds );
2362 reg_get_pipe_fns( &cmds, &n_cmds );
2365 spoolss_get_pipe_fns( &cmds, &n_cmds );
2368 netdfs_get_pipe_fns( &cmds, &n_cmds );
2371 svcctl_get_pipe_fns( &cmds, &n_cmds );
2374 eventlog_get_pipe_fns( &cmds, &n_cmds );
2377 ntsvcs_get_pipe_fns( &cmds, &n_cmds );
2381 echo_get_pipe_fns( &cmds, &n_cmds );
2385 DEBUG(0,("get_pipe_fns: Unknown pipe index! [%d]\n", idx));