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 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 /* this module apparently provides an implementation of DCE/RPC over a
21 * named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
22 * documentation are available (in on-line form) from the X-Open group.
24 * this module should provide a level of abstraction between SMB
25 * and DCE/RPC, while minimising the amount of mallocs, unnecessary
26 * data copies, and network traffic.
32 extern struct pipe_id_info pipe_names[];
33 extern struct current_user current_user;
36 #define DBGC_CLASS DBGC_RPC_SRV
38 static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
40 AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
45 auth->a_u.auth_ntlmssp_state = NULL;
48 /*******************************************************************
49 Generate the next PDU to be returned from the data in p->rdata.
51 ********************************************************************/
53 static BOOL create_next_pdu_ntlmssp(pipes_struct *p)
55 RPC_HDR_RESP hdr_resp;
56 uint32 ss_padding_len = 0;
57 uint32 data_space_available;
60 prs_struct outgoing_pdu;
63 RPC_HDR_AUTH auth_info;
64 uint8 auth_type, auth_level;
65 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
68 * If we're in the fault state, keep returning fault PDU's until
69 * the pipe gets closed. JRA.
73 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
77 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
79 /* Change the incoming request header to a response. */
80 p->hdr.pkt_type = RPC_RESPONSE;
82 /* Set up rpc header flags. */
83 if (p->out_data.data_sent_length == 0) {
84 p->hdr.flags = RPC_FLG_FIRST;
90 * Work out how much we can fit in a single PDU.
93 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
96 * Ensure there really is data left to send.
100 DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
104 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
105 RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
108 * The amount we send is the minimum of the available
109 * space and the amount left to send.
112 data_len = MIN(data_len_left, data_space_available);
115 * Set up the alloc hint. This should be the data left to
119 hdr_resp.alloc_hint = data_len_left;
122 * Work out if this PDU will be the last.
125 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
126 p->hdr.flags |= RPC_FLG_LAST;
127 if (data_len_left % 8) {
128 ss_padding_len = 8 - (data_len_left % 8);
129 DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
135 * Set up the header lengths.
138 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
139 data_len + ss_padding_len +
140 RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
141 p->hdr.auth_len = NTLMSSP_SIG_SIZE;
145 * Init the parse struct to point at the outgoing
149 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
150 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
152 /* Store the header in the data stream. */
153 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
154 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
155 prs_mem_free(&outgoing_pdu);
159 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
160 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
161 prs_mem_free(&outgoing_pdu);
165 /* Copy the data into the PDU. */
167 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
168 DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
169 prs_mem_free(&outgoing_pdu);
173 /* Copy the sign/seal padding data. */
174 if (ss_padding_len) {
177 memset(pad, '\0', 8);
178 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
179 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
180 (unsigned int)ss_padding_len));
181 prs_mem_free(&outgoing_pdu);
187 /* Now write out the auth header and null blob. */
188 if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
189 auth_type = RPC_NTLMSSP_AUTH_TYPE;
191 auth_type = RPC_SPNEGO_AUTH_TYPE;
193 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
194 auth_level = RPC_AUTH_LEVEL_PRIVACY;
196 auth_level = RPC_AUTH_LEVEL_INTEGRITY;
199 init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
200 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
201 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
202 prs_mem_free(&outgoing_pdu);
206 /* Generate the sign blob. */
208 switch (p->auth.auth_level) {
209 case PIPE_AUTH_LEVEL_PRIVACY:
210 /* Data portion is encrypted. */
211 status = ntlmssp_seal_packet(a->ntlmssp_state,
212 (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
213 data_len + ss_padding_len,
214 (unsigned char *)prs_data_p(&outgoing_pdu),
215 (size_t)prs_offset(&outgoing_pdu),
217 if (!NT_STATUS_IS_OK(status)) {
218 data_blob_free(&auth_blob);
219 prs_mem_free(&outgoing_pdu);
223 case PIPE_AUTH_LEVEL_INTEGRITY:
224 /* Data is signed. */
225 status = ntlmssp_sign_packet(a->ntlmssp_state,
226 (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
227 data_len + ss_padding_len,
228 (unsigned char *)prs_data_p(&outgoing_pdu),
229 (size_t)prs_offset(&outgoing_pdu),
231 if (!NT_STATUS_IS_OK(status)) {
232 data_blob_free(&auth_blob);
233 prs_mem_free(&outgoing_pdu);
238 prs_mem_free(&outgoing_pdu);
242 /* Append the auth blob. */
243 if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
244 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
245 (unsigned int)NTLMSSP_SIG_SIZE));
246 data_blob_free(&auth_blob);
247 prs_mem_free(&outgoing_pdu);
251 data_blob_free(&auth_blob);
254 * Setup the counts for this PDU.
257 p->out_data.data_sent_length += data_len;
258 p->out_data.current_pdu_len = p->hdr.frag_len;
259 p->out_data.current_pdu_sent = 0;
261 prs_mem_free(&outgoing_pdu);
265 /*******************************************************************
266 Generate the next PDU to be returned from the data in p->rdata.
267 Return an schannel authenticated fragment.
268 ********************************************************************/
270 static BOOL create_next_pdu_schannel(pipes_struct *p)
272 RPC_HDR_RESP hdr_resp;
273 uint32 ss_padding_len = 0;
275 uint32 data_space_available;
276 uint32 data_len_left;
277 prs_struct outgoing_pdu;
281 * If we're in the fault state, keep returning fault PDU's until
282 * the pipe gets closed. JRA.
286 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
290 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
292 /* Change the incoming request header to a response. */
293 p->hdr.pkt_type = RPC_RESPONSE;
295 /* Set up rpc header flags. */
296 if (p->out_data.data_sent_length == 0) {
297 p->hdr.flags = RPC_FLG_FIRST;
303 * Work out how much we can fit in a single PDU.
306 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
309 * Ensure there really is data left to send.
313 DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
317 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
318 RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
321 * The amount we send is the minimum of the available
322 * space and the amount left to send.
325 data_len = MIN(data_len_left, data_space_available);
328 * Set up the alloc hint. This should be the data left to
332 hdr_resp.alloc_hint = data_len_left;
335 * Work out if this PDU will be the last.
338 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
339 p->hdr.flags |= RPC_FLG_LAST;
340 if (data_len_left % 8) {
341 ss_padding_len = 8 - (data_len_left % 8);
342 DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
347 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
348 RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
349 p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
352 * Init the parse struct to point at the outgoing
356 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
357 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
359 /* Store the header in the data stream. */
360 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
361 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
362 prs_mem_free(&outgoing_pdu);
366 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
367 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
368 prs_mem_free(&outgoing_pdu);
372 /* Store the current offset. */
373 data_pos = prs_offset(&outgoing_pdu);
375 /* Copy the data into the PDU. */
377 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
378 DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
379 prs_mem_free(&outgoing_pdu);
383 /* Copy the sign/seal padding data. */
384 if (ss_padding_len) {
386 memset(pad, '\0', 8);
387 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
388 DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
389 prs_mem_free(&outgoing_pdu);
396 * Schannel processing.
399 RPC_HDR_AUTH auth_info;
400 RPC_AUTH_SCHANNEL_CHK verf;
402 data = prs_data_p(&outgoing_pdu) + data_pos;
403 /* Check it's the type of reply we were expecting to decode */
405 init_rpc_hdr_auth(&auth_info,
406 RPC_SCHANNEL_AUTH_TYPE,
407 p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
408 RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
411 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
412 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
413 prs_mem_free(&outgoing_pdu);
417 schannel_encode(p->auth.a_u.schannel_auth,
420 &verf, data, data_len + ss_padding_len);
422 if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
423 &verf, &outgoing_pdu, 0)) {
424 prs_mem_free(&outgoing_pdu);
428 p->auth.a_u.schannel_auth->seq_num++;
432 * Setup the counts for this PDU.
435 p->out_data.data_sent_length += data_len;
436 p->out_data.current_pdu_len = p->hdr.frag_len;
437 p->out_data.current_pdu_sent = 0;
439 prs_mem_free(&outgoing_pdu);
443 /*******************************************************************
444 Generate the next PDU to be returned from the data in p->rdata.
445 No authentication done.
446 ********************************************************************/
448 static BOOL create_next_pdu_noauth(pipes_struct *p)
450 RPC_HDR_RESP hdr_resp;
452 uint32 data_space_available;
453 uint32 data_len_left;
454 prs_struct outgoing_pdu;
457 * If we're in the fault state, keep returning fault PDU's until
458 * the pipe gets closed. JRA.
462 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
466 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
468 /* Change the incoming request header to a response. */
469 p->hdr.pkt_type = RPC_RESPONSE;
471 /* Set up rpc header flags. */
472 if (p->out_data.data_sent_length == 0) {
473 p->hdr.flags = RPC_FLG_FIRST;
479 * Work out how much we can fit in a single PDU.
482 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
485 * Ensure there really is data left to send.
489 DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
493 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
496 * The amount we send is the minimum of the available
497 * space and the amount left to send.
500 data_len = MIN(data_len_left, data_space_available);
503 * Set up the alloc hint. This should be the data left to
507 hdr_resp.alloc_hint = data_len_left;
510 * Work out if this PDU will be the last.
513 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
514 p->hdr.flags |= RPC_FLG_LAST;
518 * Set up the header lengths.
521 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
525 * Init the parse struct to point at the outgoing
529 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
530 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
532 /* Store the header in the data stream. */
533 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
534 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
535 prs_mem_free(&outgoing_pdu);
539 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
540 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
541 prs_mem_free(&outgoing_pdu);
545 /* Copy the data into the PDU. */
547 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
548 DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
549 prs_mem_free(&outgoing_pdu);
554 * Setup the counts for this PDU.
557 p->out_data.data_sent_length += data_len;
558 p->out_data.current_pdu_len = p->hdr.frag_len;
559 p->out_data.current_pdu_sent = 0;
561 prs_mem_free(&outgoing_pdu);
565 /*******************************************************************
566 Generate the next PDU to be returned from the data in p->rdata.
567 ********************************************************************/
569 BOOL create_next_pdu(pipes_struct *p)
571 switch(p->auth.auth_level) {
572 case PIPE_AUTH_LEVEL_NONE:
573 case PIPE_AUTH_LEVEL_CONNECT:
574 /* This is incorrect for auth level connect. Fixme. JRA */
575 return create_next_pdu_noauth(p);
578 switch(p->auth.auth_type) {
579 case PIPE_AUTH_TYPE_NTLMSSP:
580 case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
581 return create_next_pdu_ntlmssp(p);
582 case PIPE_AUTH_TYPE_SCHANNEL:
583 return create_next_pdu_schannel(p);
589 DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
590 (unsigned int)p->auth.auth_level,
591 (unsigned int)p->auth.auth_type));
595 /*******************************************************************
596 Process an NTLMSSP authentication response.
597 If this function succeeds, the user has been authenticated
598 and their domain, name and calling workstation stored in
600 *******************************************************************/
602 static BOOL pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
606 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
608 DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
612 memset(p->user_name, '\0', sizeof(p->user_name));
613 memset(p->pipe_user_name, '\0', sizeof(p->pipe_user_name));
614 memset(p->domain, '\0', sizeof(p->domain));
615 memset(p->wks, '\0', sizeof(p->wks));
617 /* Set up for non-authenticated user. */
618 TALLOC_FREE(p->pipe_user.nt_user_token);
619 p->pipe_user.ut.ngroups = 0;
620 SAFE_FREE( p->pipe_user.ut.groups);
622 /* this has to be done as root in order to verify the password */
624 status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
627 /* Don't generate a reply. */
628 data_blob_free(&reply);
630 if (!NT_STATUS_IS_OK(status)) {
634 /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
635 ensure the underlying NTLMSSP flags are also set. If not we should
638 if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
639 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
640 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
641 "but client declined signing.\n",
646 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
647 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
648 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
649 "but client declined sealing.\n",
655 fstrcpy(p->user_name, a->ntlmssp_state->user);
656 fstrcpy(p->pipe_user_name, a->server_info->unix_name);
657 fstrcpy(p->domain, a->ntlmssp_state->domain);
658 fstrcpy(p->wks, a->ntlmssp_state->workstation);
660 DEBUG(5,("pipe_ntlmssp_verify_final: OK: user: %s domain: %s workstation: %s\n",
661 p->user_name, p->domain, p->wks));
664 * Store the UNIX credential data (uid/gid pair) in the pipe structure.
667 p->pipe_user.ut.uid = a->server_info->uid;
668 p->pipe_user.ut.gid = a->server_info->gid;
671 * Copy the session key from the ntlmssp state.
674 data_blob_free(&p->session_key);
675 p->session_key = data_blob(a->ntlmssp_state->session_key.data, a->ntlmssp_state->session_key.length);
676 if (!p->session_key.data) {
680 p->pipe_user.ut.ngroups = a->server_info->n_groups;
681 if (p->pipe_user.ut.ngroups) {
682 if (!(p->pipe_user.ut.groups = (gid_t *)memdup(a->server_info->groups,
683 sizeof(gid_t) * p->pipe_user.ut.ngroups))) {
684 DEBUG(0,("failed to memdup group list to p->pipe_user.groups\n"));
689 if (a->server_info->ptok) {
690 p->pipe_user.nt_user_token =
691 dup_nt_token(NULL, a->server_info->ptok);
693 DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
694 p->pipe_user.nt_user_token = NULL;
701 /*******************************************************************
702 The switch table for the pipe names and the functions to handle them.
703 *******************************************************************/
710 struct api_struct *cmds;
714 static struct rpc_table *rpc_lookup;
715 static int rpc_lookup_size;
717 /*******************************************************************
718 This is the "stage3" NTLMSSP response after a bind request and reply.
719 *******************************************************************/
721 BOOL api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
723 RPC_HDR_AUTH auth_info;
729 DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
731 if (p->hdr.auth_len == 0) {
732 DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
736 /* 4 bytes padding. */
737 if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
738 DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
743 * Decode the authentication verifier response.
746 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
747 DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
751 if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
752 DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
753 (unsigned int)auth_info.auth_type ));
757 blob = data_blob(NULL,p->hdr.auth_len);
759 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
760 DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
761 (unsigned int)p->hdr.auth_len ));
766 * The following call actually checks the challenge/response data.
767 * for correctness against the given DOMAIN\user name.
770 if (!pipe_ntlmssp_verify_final(p, &blob)) {
774 data_blob_free(&blob);
776 p->pipe_bound = True;
782 data_blob_free(&blob);
783 free_pipe_ntlmssp_auth_data(&p->auth);
784 p->auth.a_u.auth_ntlmssp_state = NULL;
789 /*******************************************************************
790 Marshall a bind_nak pdu.
791 *******************************************************************/
793 static BOOL setup_bind_nak(pipes_struct *p)
795 prs_struct outgoing_rpc;
799 /* Free any memory in the current return data buffer. */
800 prs_mem_free(&p->out_data.rdata);
803 * Marshall directly into the outgoing PDU space. We
804 * must do this as we need to set to the bind response
805 * header and are never sending more than one PDU here.
808 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
809 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
812 * Initialize a bind_nak header.
815 init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
816 p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
819 * Marshall the header into the outgoing PDU.
822 if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
823 DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
824 prs_mem_free(&outgoing_rpc);
829 * Now add the reject reason.
832 if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
833 prs_mem_free(&outgoing_rpc);
837 p->out_data.data_sent_length = 0;
838 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
839 p->out_data.current_pdu_sent = 0;
841 if (p->auth.auth_data_free_func) {
842 (*p->auth.auth_data_free_func)(&p->auth);
844 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
845 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
846 p->pipe_bound = False;
851 /*******************************************************************
852 Marshall a fault pdu.
853 *******************************************************************/
855 BOOL setup_fault_pdu(pipes_struct *p, NTSTATUS status)
857 prs_struct outgoing_pdu;
859 RPC_HDR_RESP hdr_resp;
860 RPC_HDR_FAULT fault_resp;
862 /* Free any memory in the current return data buffer. */
863 prs_mem_free(&p->out_data.rdata);
866 * Marshall directly into the outgoing PDU space. We
867 * must do this as we need to set to the bind response
868 * header and are never sending more than one PDU here.
871 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
872 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
875 * Initialize a fault header.
878 init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
879 p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
882 * Initialize the HDR_RESP and FAULT parts of the PDU.
885 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
887 fault_resp.status = status;
888 fault_resp.reserved = 0;
891 * Marshall the header into the outgoing PDU.
894 if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
895 DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
896 prs_mem_free(&outgoing_pdu);
900 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
901 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
902 prs_mem_free(&outgoing_pdu);
906 if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
907 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
908 prs_mem_free(&outgoing_pdu);
912 p->out_data.data_sent_length = 0;
913 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
914 p->out_data.current_pdu_sent = 0;
916 prs_mem_free(&outgoing_pdu);
921 /*******************************************************************
922 Marshall a cancel_ack pdu.
923 We should probably check the auth-verifier here.
924 *******************************************************************/
926 BOOL setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
928 prs_struct outgoing_pdu;
929 RPC_HDR ack_reply_hdr;
931 /* Free any memory in the current return data buffer. */
932 prs_mem_free(&p->out_data.rdata);
935 * Marshall directly into the outgoing PDU space. We
936 * must do this as we need to set to the bind response
937 * header and are never sending more than one PDU here.
940 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
941 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
944 * Initialize a cancel_ack header.
947 init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
948 p->hdr.call_id, RPC_HEADER_LEN, 0);
951 * Marshall the header into the outgoing PDU.
954 if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
955 DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
956 prs_mem_free(&outgoing_pdu);
960 p->out_data.data_sent_length = 0;
961 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
962 p->out_data.current_pdu_sent = 0;
964 prs_mem_free(&outgoing_pdu);
969 /*******************************************************************
970 Ensure a bind request has the correct abstract & transfer interface.
971 Used to reject unknown binds from Win2k.
972 *******************************************************************/
974 BOOL check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
975 RPC_IFACE* transfer, uint32 context_id)
977 char *pipe_name = p->name;
981 fstrcpy(pname,"\\PIPE\\");
982 fstrcat(pname,pipe_name);
984 DEBUG(3,("check_bind_req for %s\n", pname));
986 /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
988 for ( i=0; pipe_names[i].client_pipe; i++ ) {
989 DEBUG(10,("checking %s\n", pipe_names[i].client_pipe));
990 if ( strequal(pipe_names[i].client_pipe, pname)
991 && (abstract->version == pipe_names[i].abstr_syntax.version)
992 && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct GUID)) == 0)
993 && (transfer->version == pipe_names[i].trans_syntax.version)
994 && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct GUID)) == 0) ) {
995 struct api_struct *fns = NULL;
997 PIPE_RPC_FNS *context_fns;
999 if ( !(context_fns = SMB_MALLOC_P(PIPE_RPC_FNS)) ) {
1000 DEBUG(0,("check_bind_req: malloc() failed!\n"));
1004 /* save the RPC function table associated with this bind */
1006 get_pipe_fns(i, &fns, &n_fns);
1008 context_fns->cmds = fns;
1009 context_fns->n_cmds = n_fns;
1010 context_fns->context_id = context_id;
1012 /* add to the list of open contexts */
1014 DLIST_ADD( p->contexts, context_fns );
1020 if(pipe_names[i].client_pipe == NULL) {
1027 /*******************************************************************
1028 Register commands to an RPC pipe
1029 *******************************************************************/
1031 NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
1033 struct rpc_table *rpc_entry;
1035 if (!clnt || !srv || !cmds) {
1036 return NT_STATUS_INVALID_PARAMETER;
1039 if (version != SMB_RPC_INTERFACE_VERSION) {
1040 DEBUG(0,("Can't register rpc commands!\n"
1041 "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
1042 ", while this version of samba uses version %d!\n",
1043 version,SMB_RPC_INTERFACE_VERSION));
1044 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1049 * we still need to make sure that don't register the same commands twice!!!
1054 /* We use a temporary variable because this call can fail and
1055 rpc_lookup will still be valid afterwards. It could then succeed if
1056 called again later */
1058 rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
1059 if (NULL == rpc_entry) {
1061 DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
1062 return NT_STATUS_NO_MEMORY;
1064 rpc_lookup = rpc_entry;
1067 rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
1068 ZERO_STRUCTP(rpc_entry);
1069 rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
1070 rpc_entry->pipe.srv = SMB_STRDUP(srv);
1071 rpc_entry->cmds = SMB_REALLOC_ARRAY(rpc_entry->cmds, struct api_struct, rpc_entry->n_cmds + size);
1072 if (!rpc_entry->cmds) {
1073 return NT_STATUS_NO_MEMORY;
1075 memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds, size * sizeof(struct api_struct));
1076 rpc_entry->n_cmds += size;
1078 return NT_STATUS_OK;
1081 /*******************************************************************
1082 Handle a SPNEGO krb5 bind auth.
1083 *******************************************************************/
1085 static BOOL pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
1086 DATA_BLOB *psecblob, prs_struct *pout_auth)
1091 /*******************************************************************
1092 Handle the first part of a SPNEGO bind auth.
1093 *******************************************************************/
1095 static BOOL pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
1096 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1102 char *OIDs[ASN1_MAX_OIDS];
1105 BOOL got_kerberos_mechanism = False;
1106 AUTH_NTLMSSP_STATE *a = NULL;
1107 RPC_HDR_AUTH auth_info;
1109 ZERO_STRUCT(secblob);
1111 ZERO_STRUCT(response);
1113 /* Grab the SPNEGO blob. */
1114 blob = data_blob(NULL,p->hdr.auth_len);
1116 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1117 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
1118 (unsigned int)p->hdr.auth_len ));
1122 if (blob.data[0] != ASN1_APPLICATION(0)) {
1126 /* parse out the OIDs and the first sec blob */
1127 if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
1128 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
1132 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
1133 got_kerberos_mechanism = True;
1136 for (i=0;OIDs[i];i++) {
1137 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
1140 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
1142 if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
1143 BOOL ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
1144 data_blob_free(&secblob);
1145 data_blob_free(&blob);
1149 if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
1150 /* Free any previous auth type. */
1151 free_pipe_ntlmssp_auth_data(&p->auth);
1154 /* Initialize the NTLM engine. */
1155 status = auth_ntlmssp_start(&a);
1156 if (!NT_STATUS_IS_OK(status)) {
1161 * Pass the first security blob of data to it.
1162 * This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
1163 * which means we need another packet to complete the bind.
1166 status = auth_ntlmssp_update(a, secblob, &chal);
1168 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1169 DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
1173 /* Generate the response blob we need for step 2 of the bind. */
1174 response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
1176 /* Copy the blob into the pout_auth parse struct */
1177 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1178 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1179 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
1183 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1184 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
1188 p->auth.a_u.auth_ntlmssp_state = a;
1189 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1190 p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
1192 data_blob_free(&blob);
1193 data_blob_free(&secblob);
1194 data_blob_free(&chal);
1195 data_blob_free(&response);
1197 /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
1202 data_blob_free(&blob);
1203 data_blob_free(&secblob);
1204 data_blob_free(&chal);
1205 data_blob_free(&response);
1207 p->auth.a_u.auth_ntlmssp_state = NULL;
1212 /*******************************************************************
1213 Handle the second part of a SPNEGO bind auth.
1214 *******************************************************************/
1216 static BOOL pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
1217 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1219 RPC_HDR_AUTH auth_info;
1220 DATA_BLOB spnego_blob;
1221 DATA_BLOB auth_blob;
1222 DATA_BLOB auth_reply;
1224 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1226 ZERO_STRUCT(spnego_blob);
1227 ZERO_STRUCT(auth_blob);
1228 ZERO_STRUCT(auth_reply);
1229 ZERO_STRUCT(response);
1231 if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
1232 DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
1236 /* Grab the SPNEGO blob. */
1237 spnego_blob = data_blob(NULL,p->hdr.auth_len);
1239 if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
1240 DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
1241 (unsigned int)p->hdr.auth_len ));
1245 if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
1246 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
1250 if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
1251 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
1256 * The following call actually checks the challenge/response data.
1257 * for correctness against the given DOMAIN\user name.
1260 if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
1264 data_blob_free(&spnego_blob);
1265 data_blob_free(&auth_blob);
1267 /* Generate the spnego "accept completed" blob - no incoming data. */
1268 response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
1270 /* Copy the blob into the pout_auth parse struct */
1271 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1272 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1273 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
1277 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1278 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
1282 data_blob_free(&auth_reply);
1283 data_blob_free(&response);
1285 p->pipe_bound = True;
1291 data_blob_free(&spnego_blob);
1292 data_blob_free(&auth_blob);
1293 data_blob_free(&auth_reply);
1294 data_blob_free(&response);
1296 free_pipe_ntlmssp_auth_data(&p->auth);
1297 p->auth.a_u.auth_ntlmssp_state = NULL;
1302 /*******************************************************************
1303 Handle an schannel bind auth.
1304 *******************************************************************/
1306 static BOOL pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1307 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1309 RPC_HDR_AUTH auth_info;
1310 RPC_AUTH_SCHANNEL_NEG neg;
1311 RPC_AUTH_VERIFIER auth_verifier;
1313 struct dcinfo *pdcinfo;
1316 if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
1317 DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
1322 * The neg.myname key here must match the remote computer name
1323 * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
1324 * operations that use credentials.
1328 ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
1332 DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
1336 p->auth.a_u.schannel_auth = TALLOC_P(p->pipe_state_mem_ctx, struct schannel_auth_struct);
1337 if (!p->auth.a_u.schannel_auth) {
1338 TALLOC_FREE(pdcinfo);
1342 memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
1343 memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
1344 sizeof(pdcinfo->sess_key));
1346 TALLOC_FREE(pdcinfo);
1348 p->auth.a_u.schannel_auth->seq_num = 0;
1351 * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
1352 * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
1353 * struct of the person who opened the pipe. I need to test this further. JRA.
1356 init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1357 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1358 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1362 /*** SCHANNEL verifier ***/
1364 init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
1365 if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
1366 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
1370 prs_align(pout_auth);
1373 if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
1377 DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
1378 neg.domain, neg.myname));
1380 /* We're finished with this bind - no more packets. */
1381 p->auth.auth_data_free_func = NULL;
1382 p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
1384 p->pipe_bound = True;
1389 /*******************************************************************
1390 Handle an NTLMSSP bind auth.
1391 *******************************************************************/
1393 static BOOL pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1394 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1396 RPC_HDR_AUTH auth_info;
1400 AUTH_NTLMSSP_STATE *a = NULL;
1403 ZERO_STRUCT(response);
1405 /* Grab the NTLMSSP blob. */
1406 blob = data_blob(NULL,p->hdr.auth_len);
1408 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1409 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
1410 (unsigned int)p->hdr.auth_len ));
1414 if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
1415 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
1419 /* We have an NTLMSSP blob. */
1420 status = auth_ntlmssp_start(&a);
1421 if (!NT_STATUS_IS_OK(status)) {
1422 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
1423 nt_errstr(status) ));
1427 status = auth_ntlmssp_update(a, blob, &response);
1428 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1429 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
1430 nt_errstr(status) ));
1434 data_blob_free(&blob);
1436 /* Copy the blob into the pout_auth parse struct */
1437 init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1438 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1439 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1443 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1444 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
1448 p->auth.a_u.auth_ntlmssp_state = a;
1449 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1450 p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
1452 data_blob_free(&blob);
1453 data_blob_free(&response);
1455 DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
1457 /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
1462 data_blob_free(&blob);
1463 data_blob_free(&response);
1465 free_pipe_ntlmssp_auth_data(&p->auth);
1466 p->auth.a_u.auth_ntlmssp_state = NULL;
1470 /*******************************************************************
1471 Respond to a pipe bind request.
1472 *******************************************************************/
1474 BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
1478 RPC_HDR_AUTH auth_info;
1480 fstring ack_pipe_name;
1481 prs_struct out_hdr_ba;
1482 prs_struct out_auth;
1483 prs_struct outgoing_rpc;
1486 unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
1488 /* No rebinds on a bound pipe - use alter context. */
1489 if (p->pipe_bound) {
1490 DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound pipe %s.\n", p->pipe_srv_name));
1491 return setup_bind_nak(p);
1494 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1497 * Marshall directly into the outgoing PDU space. We
1498 * must do this as we need to set to the bind response
1499 * header and are never sending more than one PDU here.
1502 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1505 * Setup the memory to marshall the ba header, and the
1509 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1510 DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
1511 prs_mem_free(&outgoing_rpc);
1515 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1516 DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
1517 prs_mem_free(&outgoing_rpc);
1518 prs_mem_free(&out_hdr_ba);
1522 DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
1525 * Try and find the correct pipe name to ensure
1526 * that this is a pipe name we support.
1530 for (i = 0; i < rpc_lookup_size; i++) {
1531 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1532 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1533 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1534 fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1539 if (i == rpc_lookup_size) {
1540 if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
1541 DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
1543 prs_mem_free(&outgoing_rpc);
1544 prs_mem_free(&out_hdr_ba);
1545 prs_mem_free(&out_auth);
1547 return setup_bind_nak(p);
1550 for (i = 0; i < rpc_lookup_size; i++) {
1551 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1552 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1553 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1554 fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1559 if (i == rpc_lookup_size) {
1560 DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
1565 /* decode the bind request */
1566 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1567 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
1571 /* name has to be \PIPE\xxxxx */
1572 fstrcpy(ack_pipe_name, "\\PIPE\\");
1573 fstrcat(ack_pipe_name, p->pipe_srv_name);
1575 DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
1578 * Check if this is an authenticated bind request.
1581 if (p->hdr.auth_len) {
1583 * Decode the authentication verifier.
1586 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1587 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1591 auth_type = auth_info.auth_type;
1593 /* Work out if we have to sign or seal etc. */
1594 switch (auth_info.auth_level) {
1595 case RPC_AUTH_LEVEL_INTEGRITY:
1596 p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
1598 case RPC_AUTH_LEVEL_PRIVACY:
1599 p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
1602 DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
1603 (unsigned int)auth_info.auth_level ));
1607 ZERO_STRUCT(auth_info);
1610 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1613 case RPC_NTLMSSP_AUTH_TYPE:
1614 if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1620 case RPC_SCHANNEL_AUTH_TYPE:
1621 if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1626 case RPC_SPNEGO_AUTH_TYPE:
1627 if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
1632 case RPC_ANONYMOUS_AUTH_TYPE:
1633 /* Unauthenticated bind request. */
1634 /* Get the authenticated pipe user from current_user */
1635 if (!copy_current_user(&p->pipe_user, ¤t_user)) {
1636 DEBUG(10, ("Could not copy current user\n"));
1639 /* We're finished - no more packets. */
1640 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
1641 /* We must set the pipe auth_level here also. */
1642 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
1643 p->pipe_bound = True;
1644 /* The session key was initialized from the SMB
1645 * session in make_internal_rpc_pipe_p */
1649 DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
1654 * Create the bind response struct.
1657 /* If the requested abstract synt uuid doesn't match our client pipe,
1658 reject the bind_ack & set the transfer interface synt to all 0's,
1659 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1661 Needed when adding entries to a DACL from NT5 - SK */
1663 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1664 hdr_rb.rpc_context[0].context_id )) {
1665 init_rpc_hdr_ba(&hdr_ba,
1666 RPC_MAX_PDU_FRAG_LEN,
1667 RPC_MAX_PDU_FRAG_LEN,
1671 &hdr_rb.rpc_context[0].transfer[0]);
1673 RPC_IFACE null_interface;
1674 ZERO_STRUCT(null_interface);
1675 /* Rejection reason: abstract syntax not supported */
1676 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1677 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1678 ack_pipe_name, 0x1, 0x2, 0x1,
1680 p->pipe_bound = False;
1687 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1688 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
1693 * Create the header, now we know the length.
1696 if (prs_offset(&out_auth)) {
1697 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1700 init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
1702 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1706 * Marshall the header into the outgoing PDU.
1709 if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1710 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
1715 * Now add the RPC_HDR_BA and any auth needed.
1718 if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1719 DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
1723 if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1724 DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
1729 * Setup the lengths for the initial reply.
1732 p->out_data.data_sent_length = 0;
1733 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1734 p->out_data.current_pdu_sent = 0;
1736 prs_mem_free(&out_hdr_ba);
1737 prs_mem_free(&out_auth);
1743 prs_mem_free(&outgoing_rpc);
1744 prs_mem_free(&out_hdr_ba);
1745 prs_mem_free(&out_auth);
1746 return setup_bind_nak(p);
1749 /****************************************************************************
1750 Deal with an alter context call. Can be third part of 3 leg auth request for
1752 ****************************************************************************/
1754 BOOL api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
1758 RPC_HDR_AUTH auth_info;
1760 fstring ack_pipe_name;
1761 prs_struct out_hdr_ba;
1762 prs_struct out_auth;
1763 prs_struct outgoing_rpc;
1766 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1769 * Marshall directly into the outgoing PDU space. We
1770 * must do this as we need to set to the bind response
1771 * header and are never sending more than one PDU here.
1774 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1777 * Setup the memory to marshall the ba header, and the
1781 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1782 DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
1783 prs_mem_free(&outgoing_rpc);
1787 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1788 DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
1789 prs_mem_free(&outgoing_rpc);
1790 prs_mem_free(&out_hdr_ba);
1794 DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
1796 /* decode the alter context request */
1797 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1798 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
1802 /* secondary address CAN be NULL
1803 * as the specs say it's ignored.
1804 * It MUST be NULL to have the spoolss working.
1806 fstrcpy(ack_pipe_name,"");
1808 DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
1811 * Check if this is an authenticated alter context request.
1814 if (p->hdr.auth_len != 0) {
1816 * Decode the authentication verifier.
1819 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1820 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1825 * Currently only the SPNEGO auth type uses the alter ctx
1826 * response in place of the NTLMSSP auth3 type.
1829 if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
1830 /* We can only finish if the pipe is unbound. */
1831 if (!p->pipe_bound) {
1832 if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
1840 ZERO_STRUCT(auth_info);
1843 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1846 * Create the bind response struct.
1849 /* If the requested abstract synt uuid doesn't match our client pipe,
1850 reject the bind_ack & set the transfer interface synt to all 0's,
1851 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1853 Needed when adding entries to a DACL from NT5 - SK */
1855 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1856 hdr_rb.rpc_context[0].context_id )) {
1857 init_rpc_hdr_ba(&hdr_ba,
1858 RPC_MAX_PDU_FRAG_LEN,
1859 RPC_MAX_PDU_FRAG_LEN,
1863 &hdr_rb.rpc_context[0].transfer[0]);
1865 RPC_IFACE null_interface;
1866 ZERO_STRUCT(null_interface);
1867 /* Rejection reason: abstract syntax not supported */
1868 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1869 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1870 ack_pipe_name, 0x1, 0x2, 0x1,
1872 p->pipe_bound = False;
1879 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1880 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
1885 * Create the header, now we know the length.
1888 if (prs_offset(&out_auth)) {
1889 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1892 init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
1894 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1898 * Marshall the header into the outgoing PDU.
1901 if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1902 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
1907 * Now add the RPC_HDR_BA and any auth needed.
1910 if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1911 DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
1915 if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1916 DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
1921 * Setup the lengths for the initial reply.
1924 p->out_data.data_sent_length = 0;
1925 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1926 p->out_data.current_pdu_sent = 0;
1928 prs_mem_free(&out_hdr_ba);
1929 prs_mem_free(&out_auth);
1935 prs_mem_free(&outgoing_rpc);
1936 prs_mem_free(&out_hdr_ba);
1937 prs_mem_free(&out_auth);
1938 return setup_bind_nak(p);
1941 /****************************************************************************
1942 Deal with NTLMSSP sign & seal processing on an RPC request.
1943 ****************************************************************************/
1945 BOOL api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
1946 uint32 *p_ss_padding_len, NTSTATUS *pstatus)
1948 RPC_HDR_AUTH auth_info;
1949 uint32 auth_len = p->hdr.auth_len;
1950 uint32 save_offset = prs_offset(rpc_in);
1951 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1952 unsigned char *data = NULL;
1954 unsigned char *full_packet_data = NULL;
1955 size_t full_packet_data_len;
1956 DATA_BLOB auth_blob;
1958 *pstatus = NT_STATUS_OK;
1960 if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
1965 *pstatus = NT_STATUS_INVALID_PARAMETER;
1969 /* Ensure there's enough data for an authenticated request. */
1970 if ((auth_len > RPC_MAX_SIGN_SIZE) ||
1971 (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
1972 DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
1973 (unsigned int)auth_len ));
1974 *pstatus = NT_STATUS_INVALID_PARAMETER;
1979 * We need the full packet data + length (minus auth stuff) as well as the packet data + length
1980 * after the RPC header.
1981 * We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
1982 * functions as NTLMv2 checks the rpc headers also.
1985 data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
1986 data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
1988 full_packet_data = p->in_data.current_in_pdu;
1989 full_packet_data_len = p->hdr.frag_len - auth_len;
1991 /* Pull the auth header and the following data into a blob. */
1992 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
1993 DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
1994 (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
1995 *pstatus = NT_STATUS_INVALID_PARAMETER;
1999 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2000 DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
2001 *pstatus = NT_STATUS_INVALID_PARAMETER;
2005 auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
2006 auth_blob.length = auth_len;
2008 switch (p->auth.auth_level) {
2009 case PIPE_AUTH_LEVEL_PRIVACY:
2010 /* Data is encrypted. */
2011 *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
2014 full_packet_data_len,
2016 if (!NT_STATUS_IS_OK(*pstatus)) {
2020 case PIPE_AUTH_LEVEL_INTEGRITY:
2021 /* Data is signed. */
2022 *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
2025 full_packet_data_len,
2027 if (!NT_STATUS_IS_OK(*pstatus)) {
2032 *pstatus = NT_STATUS_INVALID_PARAMETER;
2037 * Return the current pointer to the data offset.
2040 if(!prs_set_offset(rpc_in, save_offset)) {
2041 DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
2042 (unsigned int)save_offset ));
2043 *pstatus = NT_STATUS_INVALID_PARAMETER;
2048 * Remember the padding length. We must remove it from the real data
2049 * stream once the sign/seal is done.
2052 *p_ss_padding_len = auth_info.auth_pad_len;
2057 /****************************************************************************
2058 Deal with schannel processing on an RPC request.
2059 ****************************************************************************/
2061 BOOL api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
2065 uint32 save_offset = prs_offset(rpc_in);
2066 RPC_HDR_AUTH auth_info;
2067 RPC_AUTH_SCHANNEL_CHK schannel_chk;
2069 auth_len = p->hdr.auth_len;
2071 if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
2072 DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
2077 * The following is that length of the data we must verify or unseal.
2078 * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
2079 * preceeding the auth_data.
2082 if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
2083 DEBUG(0,("Incorrect frag %u, auth %u.\n",
2084 (unsigned int)p->hdr.frag_len,
2085 (unsigned int)auth_len ));
2089 data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
2090 RPC_HDR_AUTH_LEN - auth_len;
2092 DEBUG(5,("data %d auth %d\n", data_len, auth_len));
2094 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2095 DEBUG(0,("cannot move offset to %u.\n",
2096 (unsigned int)RPC_HDR_REQ_LEN + data_len ));
2100 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2101 DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
2105 if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
2106 DEBUG(0,("Invalid auth info %d on schannel\n",
2107 auth_info.auth_type));
2111 if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
2112 DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
2116 if (!schannel_decode(p->auth.a_u.schannel_auth,
2118 SENDER_IS_INITIATOR,
2120 prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
2121 DEBUG(3,("failed to decode PDU\n"));
2126 * Return the current pointer to the data offset.
2129 if(!prs_set_offset(rpc_in, save_offset)) {
2130 DEBUG(0,("failed to set offset back to %u\n",
2131 (unsigned int)save_offset ));
2135 /* The sequence number gets incremented on both send and receive. */
2136 p->auth.a_u.schannel_auth->seq_num++;
2139 * Remember the padding length. We must remove it from the real data
2140 * stream once the sign/seal is done.
2143 *p_ss_padding_len = auth_info.auth_pad_len;
2148 /****************************************************************************
2149 Return a user struct for a pipe user.
2150 ****************************************************************************/
2152 struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
2154 if (p->pipe_bound &&
2155 (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP ||
2156 (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2157 memcpy(user, &p->pipe_user, sizeof(struct current_user));
2159 memcpy(user, ¤t_user, sizeof(struct current_user));
2165 /****************************************************************************
2166 Find the set of RPC functions associated with this context_id
2167 ****************************************************************************/
2169 static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
2171 PIPE_RPC_FNS *fns = NULL;
2172 PIPE_RPC_FNS *tmp = NULL;
2175 DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
2179 for (tmp=list; tmp; tmp=tmp->next ) {
2180 if ( tmp->context_id == context_id )
2189 /****************************************************************************
2191 ****************************************************************************/
2193 void free_pipe_rpc_context( PIPE_RPC_FNS *list )
2195 PIPE_RPC_FNS *tmp = list;
2207 /****************************************************************************
2208 Find the correct RPC function to call for this request.
2209 If the pipe is authenticated then become the correct UNIX user
2210 before doing the call.
2211 ****************************************************************************/
2213 BOOL api_pipe_request(pipes_struct *p)
2216 BOOL changed_user = False;
2217 PIPE_RPC_FNS *pipe_fns;
2219 if (p->pipe_bound &&
2220 ((p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) ||
2221 (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2222 if(!become_authenticated_pipe_user(p)) {
2223 prs_mem_free(&p->out_data.rdata);
2226 changed_user = True;
2229 DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
2231 /* get the set of RPC functions for this context */
2233 pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
2236 TALLOC_CTX *frame = talloc_stackframe();
2237 ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
2241 DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
2242 p->hdr_req.context_id, p->name));
2246 unbecome_authenticated_pipe_user();
2252 /*******************************************************************
2253 Calls the underlying RPC function for a named pipe.
2254 ********************************************************************/
2256 BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
2257 const struct api_struct *api_rpc_cmds, int n_cmds)
2261 uint32 offset1, offset2;
2263 /* interpret the command */
2264 DEBUG(4,("api_rpcTNP: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
2266 slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
2267 prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
2269 for (fn_num = 0; fn_num < n_cmds; fn_num++) {
2270 if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
2271 DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
2276 if (fn_num == n_cmds) {
2278 * For an unknown RPC just return a fault PDU but
2279 * return True to allow RPC's on the pipe to continue
2280 * and not put the pipe into fault state. JRA.
2282 DEBUG(4, ("unknown\n"));
2283 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2287 offset1 = prs_offset(&p->out_data.rdata);
2289 DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
2290 fn_num, api_rpc_cmds[fn_num].fn));
2291 /* do the actual command */
2292 if(!api_rpc_cmds[fn_num].fn(p)) {
2293 DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
2294 prs_mem_free(&p->out_data.rdata);
2298 if (p->bad_handle_fault_state) {
2299 DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
2300 p->bad_handle_fault_state = False;
2301 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
2305 if (p->rng_fault_state) {
2306 DEBUG(4, ("api_rpcTNP: rng fault return\n"));
2307 p->rng_fault_state = False;
2308 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2312 slprintf(name, sizeof(name)-1, "out_%s", rpc_name);
2313 offset2 = prs_offset(&p->out_data.rdata);
2314 prs_set_offset(&p->out_data.rdata, offset1);
2315 prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
2316 prs_set_offset(&p->out_data.rdata, offset2);
2318 DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
2320 /* Check for buffer underflow in rpc parsing */
2322 if ((DEBUGLEVEL >= 10) &&
2323 (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
2324 size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
2325 char *data = (char *)SMB_MALLOC(data_len);
2327 DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
2329 prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
2338 /*******************************************************************
2339 *******************************************************************/
2341 void get_pipe_fns( int idx, struct api_struct **fns, int *n_fns )
2343 struct api_struct *cmds = NULL;
2348 lsa_get_pipe_fns( &cmds, &n_cmds );
2351 lsa_ds_get_pipe_fns( &cmds, &n_cmds );
2354 samr_get_pipe_fns( &cmds, &n_cmds );
2357 netlog_get_pipe_fns( &cmds, &n_cmds );
2360 srvsvc2_get_pipe_fns( &cmds, &n_cmds );
2363 wkssvc_get_pipe_fns( &cmds, &n_cmds );
2366 winreg_get_pipe_fns( &cmds, &n_cmds );
2369 spoolss_get_pipe_fns( &cmds, &n_cmds );
2372 netdfs_get_pipe_fns( &cmds, &n_cmds );
2375 svcctl2_get_pipe_fns( &cmds, &n_cmds );
2378 eventlog2_get_pipe_fns( &cmds, &n_cmds );
2381 ntsvcs_get_pipe_fns( &cmds, &n_cmds );
2385 rpcecho_get_pipe_fns( &cmds, &n_cmds );
2389 DEBUG(0,("get_pipe_fns: Unknown pipe index! [%d]\n", idx));