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 current_user current_user;
35 #define DBGC_CLASS DBGC_RPC_SRV
37 static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
39 AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
44 auth->a_u.auth_ntlmssp_state = NULL;
47 static DATA_BLOB generic_session_key(void)
49 return data_blob("SystemLibraryDTC", 16);
52 /*******************************************************************
53 Generate the next PDU to be returned from the data in p->rdata.
55 ********************************************************************/
57 static bool create_next_pdu_ntlmssp(pipes_struct *p)
59 RPC_HDR_RESP hdr_resp;
60 uint32 ss_padding_len = 0;
61 uint32 data_space_available;
66 RPC_HDR_AUTH auth_info;
67 uint8 auth_type, auth_level;
68 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
71 * If we're in the fault state, keep returning fault PDU's until
72 * the pipe gets closed. JRA.
76 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
80 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
82 /* Change the incoming request header to a response. */
83 p->hdr.pkt_type = RPC_RESPONSE;
85 /* Set up rpc header flags. */
86 if (p->out_data.data_sent_length == 0) {
87 p->hdr.flags = RPC_FLG_FIRST;
93 * Work out how much we can fit in a single PDU.
96 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
99 * Ensure there really is data left to send.
103 DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
107 data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN
108 - RPC_HDR_RESP_LEN - RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
111 * The amount we send is the minimum of the available
112 * space and the amount left to send.
115 data_len = MIN(data_len_left, data_space_available);
118 * Set up the alloc hint. This should be the data left to
122 hdr_resp.alloc_hint = data_len_left;
125 * Work out if this PDU will be the last.
128 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
129 p->hdr.flags |= RPC_FLG_LAST;
130 if (data_len_left % 8) {
131 ss_padding_len = 8 - (data_len_left % 8);
132 DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
138 * Set up the header lengths.
141 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
142 data_len + ss_padding_len +
143 RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
144 p->hdr.auth_len = NTLMSSP_SIG_SIZE;
148 * Init the parse struct to point at the outgoing
152 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
154 /* Store the header in the data stream. */
155 if(!smb_io_rpc_hdr("hdr", &p->hdr, &p->out_data.frag, 0)) {
156 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
157 prs_mem_free(&p->out_data.frag);
161 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
162 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
163 prs_mem_free(&p->out_data.frag);
167 /* Copy the data into the PDU. */
169 if(!prs_append_some_prs_data(&p->out_data.frag, &p->out_data.rdata,
170 p->out_data.data_sent_length, data_len)) {
171 DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
172 prs_mem_free(&p->out_data.frag);
176 /* Copy the sign/seal padding data. */
177 if (ss_padding_len) {
180 memset(pad, '\0', 8);
181 if (!prs_copy_data_in(&p->out_data.frag, pad,
183 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
184 (unsigned int)ss_padding_len));
185 prs_mem_free(&p->out_data.frag);
191 /* Now write out the auth header and null blob. */
192 if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
193 auth_type = RPC_NTLMSSP_AUTH_TYPE;
195 auth_type = RPC_SPNEGO_AUTH_TYPE;
197 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
198 auth_level = RPC_AUTH_LEVEL_PRIVACY;
200 auth_level = RPC_AUTH_LEVEL_INTEGRITY;
203 init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
204 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &p->out_data.frag,
206 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
207 prs_mem_free(&p->out_data.frag);
211 /* Generate the sign blob. */
213 switch (p->auth.auth_level) {
214 case PIPE_AUTH_LEVEL_PRIVACY:
215 /* Data portion is encrypted. */
216 status = ntlmssp_seal_packet(
218 (uint8_t *)prs_data_p(&p->out_data.frag)
219 + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
220 data_len + ss_padding_len,
221 (unsigned char *)prs_data_p(&p->out_data.frag),
222 (size_t)prs_offset(&p->out_data.frag),
224 if (!NT_STATUS_IS_OK(status)) {
225 data_blob_free(&auth_blob);
226 prs_mem_free(&p->out_data.frag);
230 case PIPE_AUTH_LEVEL_INTEGRITY:
231 /* Data is signed. */
232 status = ntlmssp_sign_packet(
234 (unsigned char *)prs_data_p(&p->out_data.frag)
235 + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
236 data_len + ss_padding_len,
237 (unsigned char *)prs_data_p(&p->out_data.frag),
238 (size_t)prs_offset(&p->out_data.frag),
240 if (!NT_STATUS_IS_OK(status)) {
241 data_blob_free(&auth_blob);
242 prs_mem_free(&p->out_data.frag);
247 prs_mem_free(&p->out_data.frag);
251 /* Append the auth blob. */
252 if (!prs_copy_data_in(&p->out_data.frag, (char *)auth_blob.data,
254 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
255 (unsigned int)NTLMSSP_SIG_SIZE));
256 data_blob_free(&auth_blob);
257 prs_mem_free(&p->out_data.frag);
261 data_blob_free(&auth_blob);
264 * Setup the counts for this PDU.
267 p->out_data.data_sent_length += data_len;
268 p->out_data.current_pdu_sent = 0;
273 /*******************************************************************
274 Generate the next PDU to be returned from the data in p->rdata.
275 Return an schannel authenticated fragment.
276 ********************************************************************/
278 static bool create_next_pdu_schannel(pipes_struct *p)
280 RPC_HDR_RESP hdr_resp;
281 uint32 ss_padding_len = 0;
283 uint32 data_space_available;
284 uint32 data_len_left;
288 * If we're in the fault state, keep returning fault PDU's until
289 * the pipe gets closed. JRA.
293 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
297 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
299 /* Change the incoming request header to a response. */
300 p->hdr.pkt_type = RPC_RESPONSE;
302 /* Set up rpc header flags. */
303 if (p->out_data.data_sent_length == 0) {
304 p->hdr.flags = RPC_FLG_FIRST;
310 * Work out how much we can fit in a single PDU.
313 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
316 * Ensure there really is data left to send.
320 DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
324 data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN
325 - RPC_HDR_RESP_LEN - RPC_HDR_AUTH_LEN
326 - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
329 * The amount we send is the minimum of the available
330 * space and the amount left to send.
333 data_len = MIN(data_len_left, data_space_available);
336 * Set up the alloc hint. This should be the data left to
340 hdr_resp.alloc_hint = data_len_left;
343 * Work out if this PDU will be the last.
346 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
347 p->hdr.flags |= RPC_FLG_LAST;
348 if (data_len_left % 8) {
349 ss_padding_len = 8 - (data_len_left % 8);
350 DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
355 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
356 RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
357 p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
360 * Init the parse struct to point at the outgoing
364 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
366 /* Store the header in the data stream. */
367 if(!smb_io_rpc_hdr("hdr", &p->hdr, &p->out_data.frag, 0)) {
368 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
369 prs_mem_free(&p->out_data.frag);
373 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
374 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
375 prs_mem_free(&p->out_data.frag);
379 /* Store the current offset. */
380 data_pos = prs_offset(&p->out_data.frag);
382 /* Copy the data into the PDU. */
384 if(!prs_append_some_prs_data(&p->out_data.frag, &p->out_data.rdata,
385 p->out_data.data_sent_length, data_len)) {
386 DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
387 prs_mem_free(&p->out_data.frag);
391 /* Copy the sign/seal padding data. */
392 if (ss_padding_len) {
394 memset(pad, '\0', 8);
395 if (!prs_copy_data_in(&p->out_data.frag, pad,
397 DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
398 prs_mem_free(&p->out_data.frag);
405 * Schannel processing.
407 RPC_HDR_AUTH auth_info;
408 RPC_AUTH_SCHANNEL_CHK verf;
410 /* Check it's the type of reply we were expecting to decode */
412 init_rpc_hdr_auth(&auth_info,
413 RPC_SCHANNEL_AUTH_TYPE,
414 p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
415 RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
418 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info,
419 &p->out_data.frag, 0)) {
420 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
421 prs_mem_free(&p->out_data.frag);
425 schannel_encode(p->auth.a_u.schannel_auth,
426 p->auth.auth_level, SENDER_IS_ACCEPTOR, &verf,
427 prs_data_p(&p->out_data.frag) + data_pos,
428 data_len + ss_padding_len);
430 if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
431 &verf, &p->out_data.frag, 0)) {
432 prs_mem_free(&p->out_data.frag);
436 p->auth.a_u.schannel_auth->seq_num++;
440 * Setup the counts for this PDU.
443 p->out_data.data_sent_length += data_len;
444 p->out_data.current_pdu_sent = 0;
449 /*******************************************************************
450 Generate the next PDU to be returned from the data in p->rdata.
451 No authentication done.
452 ********************************************************************/
454 static bool create_next_pdu_noauth(pipes_struct *p)
456 RPC_HDR_RESP hdr_resp;
458 uint32 data_space_available;
459 uint32 data_len_left;
462 * If we're in the fault state, keep returning fault PDU's until
463 * the pipe gets closed. JRA.
467 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
471 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
473 /* Change the incoming request header to a response. */
474 p->hdr.pkt_type = RPC_RESPONSE;
476 /* Set up rpc header flags. */
477 if (p->out_data.data_sent_length == 0) {
478 p->hdr.flags = RPC_FLG_FIRST;
484 * Work out how much we can fit in a single PDU.
487 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
490 * Ensure there really is data left to send.
494 DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
498 data_space_available = RPC_MAX_PDU_FRAG_LEN - RPC_HEADER_LEN
502 * The amount we send is the minimum of the available
503 * space and the amount left to send.
506 data_len = MIN(data_len_left, data_space_available);
509 * Set up the alloc hint. This should be the data left to
513 hdr_resp.alloc_hint = data_len_left;
516 * Work out if this PDU will be the last.
519 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
520 p->hdr.flags |= RPC_FLG_LAST;
524 * Set up the header lengths.
527 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
531 * Init the parse struct to point at the outgoing
535 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
537 /* Store the header in the data stream. */
538 if(!smb_io_rpc_hdr("hdr", &p->hdr, &p->out_data.frag, 0)) {
539 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
540 prs_mem_free(&p->out_data.frag);
544 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
545 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
546 prs_mem_free(&p->out_data.frag);
550 /* Copy the data into the PDU. */
552 if(!prs_append_some_prs_data(&p->out_data.frag, &p->out_data.rdata,
553 p->out_data.data_sent_length, data_len)) {
554 DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
555 prs_mem_free(&p->out_data.frag);
560 * Setup the counts for this PDU.
563 p->out_data.data_sent_length += data_len;
564 p->out_data.current_pdu_sent = 0;
569 /*******************************************************************
570 Generate the next PDU to be returned from the data in p->rdata.
571 ********************************************************************/
573 bool create_next_pdu(pipes_struct *p)
575 switch(p->auth.auth_level) {
576 case PIPE_AUTH_LEVEL_NONE:
577 case PIPE_AUTH_LEVEL_CONNECT:
578 /* This is incorrect for auth level connect. Fixme. JRA */
579 return create_next_pdu_noauth(p);
582 switch(p->auth.auth_type) {
583 case PIPE_AUTH_TYPE_NTLMSSP:
584 case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
585 return create_next_pdu_ntlmssp(p);
586 case PIPE_AUTH_TYPE_SCHANNEL:
587 return create_next_pdu_schannel(p);
593 DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
594 (unsigned int)p->auth.auth_level,
595 (unsigned int)p->auth.auth_type));
599 /*******************************************************************
600 Process an NTLMSSP authentication response.
601 If this function succeeds, the user has been authenticated
602 and their domain, name and calling workstation stored in
604 *******************************************************************/
606 static bool pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
608 DATA_BLOB session_key, reply;
610 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
613 DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n",
614 get_pipe_name_from_iface(&p->syntax)));
618 /* this has to be done as root in order to verify the password */
620 status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
623 /* Don't generate a reply. */
624 data_blob_free(&reply);
626 if (!NT_STATUS_IS_OK(status)) {
630 /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
631 ensure the underlying NTLMSSP flags are also set. If not we should
634 if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
635 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
636 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
637 "but client declined signing.\n",
638 get_pipe_name_from_iface(&p->syntax)));
642 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
643 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
644 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
645 "but client declined sealing.\n",
646 get_pipe_name_from_iface(&p->syntax)));
651 DEBUG(5, ("pipe_ntlmssp_verify_final: OK: user: %s domain: %s "
652 "workstation: %s\n", a->ntlmssp_state->user,
653 a->ntlmssp_state->domain, a->ntlmssp_state->workstation));
655 if (a->server_info->ptok == NULL) {
656 DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
660 TALLOC_FREE(p->server_info);
662 p->server_info = copy_serverinfo(p, a->server_info);
663 if (p->server_info == NULL) {
664 DEBUG(0, ("copy_serverinfo failed\n"));
669 * We're an authenticated bind over smb, so the session key needs to
670 * be set to "SystemLibraryDTC". Weird, but this is what Windows
671 * does. See the RPC-SAMBA3SESSIONKEY.
674 session_key = generic_session_key();
675 if (session_key.data == NULL) {
679 ret = server_info_set_session_key(p->server_info, session_key);
681 data_blob_free(&session_key);
686 /*******************************************************************
687 The switch table for the pipe names and the functions to handle them.
688 *******************************************************************/
695 struct ndr_syntax_id rpc_interface;
696 const struct api_struct *cmds;
700 static struct rpc_table *rpc_lookup;
701 static int rpc_lookup_size;
703 /*******************************************************************
704 This is the "stage3" NTLMSSP response after a bind request and reply.
705 *******************************************************************/
707 bool api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
709 RPC_HDR_AUTH auth_info;
715 DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
717 if (p->hdr.auth_len == 0) {
718 DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
722 /* 4 bytes padding. */
723 if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
724 DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
729 * Decode the authentication verifier response.
732 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
733 DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
737 if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
738 DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
739 (unsigned int)auth_info.auth_type ));
743 blob = data_blob(NULL,p->hdr.auth_len);
745 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
746 DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
747 (unsigned int)p->hdr.auth_len ));
752 * The following call actually checks the challenge/response data.
753 * for correctness against the given DOMAIN\user name.
756 if (!pipe_ntlmssp_verify_final(p, &blob)) {
760 data_blob_free(&blob);
762 p->pipe_bound = True;
768 data_blob_free(&blob);
769 free_pipe_ntlmssp_auth_data(&p->auth);
770 p->auth.a_u.auth_ntlmssp_state = NULL;
775 /*******************************************************************
776 Marshall a bind_nak pdu.
777 *******************************************************************/
779 static bool setup_bind_nak(pipes_struct *p)
784 /* Free any memory in the current return data buffer. */
785 prs_mem_free(&p->out_data.rdata);
788 * Marshall directly into the outgoing PDU space. We
789 * must do this as we need to set to the bind response
790 * header and are never sending more than one PDU here.
793 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
796 * Initialize a bind_nak header.
799 init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
800 p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
803 * Marshall the header into the outgoing PDU.
806 if(!smb_io_rpc_hdr("", &nak_hdr, &p->out_data.frag, 0)) {
807 DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
808 prs_mem_free(&p->out_data.frag);
813 * Now add the reject reason.
816 if(!prs_uint16("reject code", &p->out_data.frag, 0, &zero)) {
817 prs_mem_free(&p->out_data.frag);
821 p->out_data.data_sent_length = 0;
822 p->out_data.current_pdu_sent = 0;
824 if (p->auth.auth_data_free_func) {
825 (*p->auth.auth_data_free_func)(&p->auth);
827 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
828 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
829 p->pipe_bound = False;
834 /*******************************************************************
835 Marshall a fault pdu.
836 *******************************************************************/
838 bool setup_fault_pdu(pipes_struct *p, NTSTATUS status)
841 RPC_HDR_RESP hdr_resp;
842 RPC_HDR_FAULT fault_resp;
844 /* Free any memory in the current return data buffer. */
845 prs_mem_free(&p->out_data.rdata);
848 * Marshall directly into the outgoing PDU space. We
849 * must do this as we need to set to the bind response
850 * header and are never sending more than one PDU here.
853 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
856 * Initialize a fault header.
859 init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
860 p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
863 * Initialize the HDR_RESP and FAULT parts of the PDU.
866 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
868 fault_resp.status = status;
869 fault_resp.reserved = 0;
872 * Marshall the header into the outgoing PDU.
875 if(!smb_io_rpc_hdr("", &fault_hdr, &p->out_data.frag, 0)) {
876 DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
877 prs_mem_free(&p->out_data.frag);
881 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &p->out_data.frag, 0)) {
882 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
883 prs_mem_free(&p->out_data.frag);
887 if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &p->out_data.frag, 0)) {
888 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
889 prs_mem_free(&p->out_data.frag);
893 p->out_data.data_sent_length = 0;
894 p->out_data.current_pdu_sent = 0;
900 /*******************************************************************
901 Marshall a cancel_ack pdu.
902 We should probably check the auth-verifier here.
903 *******************************************************************/
905 bool setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
907 prs_struct outgoing_pdu;
908 RPC_HDR ack_reply_hdr;
910 /* Free any memory in the current return data buffer. */
911 prs_mem_free(&p->out_data.rdata);
914 * Marshall directly into the outgoing PDU space. We
915 * must do this as we need to set to the bind response
916 * header and are never sending more than one PDU here.
919 prs_init_empty( &outgoing_pdu, p->mem_ctx, MARSHALL);
920 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
923 * Initialize a cancel_ack header.
926 init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
927 p->hdr.call_id, RPC_HEADER_LEN, 0);
930 * Marshall the header into the outgoing PDU.
933 if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
934 DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
935 prs_mem_free(&outgoing_pdu);
939 p->out_data.data_sent_length = 0;
940 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
941 p->out_data.current_pdu_sent = 0;
943 prs_mem_free(&outgoing_pdu);
948 /*******************************************************************
949 Ensure a bind request has the correct abstract & transfer interface.
950 Used to reject unknown binds from Win2k.
951 *******************************************************************/
953 bool check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
954 RPC_IFACE* transfer, uint32 context_id)
957 struct pipe_rpc_fns *context_fns;
959 DEBUG(3,("check_bind_req for %s\n",
960 get_pipe_name_from_iface(&p->syntax)));
962 /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
964 for (i=0; i<rpc_lookup_size; i++) {
965 DEBUGADD(10, ("checking %s\n", rpc_lookup[i].pipe.clnt));
966 if (ndr_syntax_id_equal(
967 abstract, &rpc_lookup[i].rpc_interface)
968 && ndr_syntax_id_equal(
969 transfer, &ndr_transfer_syntax)) {
974 if (i == rpc_lookup_size) {
978 context_fns = SMB_MALLOC_P(struct pipe_rpc_fns);
979 if (context_fns == NULL) {
980 DEBUG(0,("check_bind_req: malloc() failed!\n"));
984 context_fns->cmds = rpc_lookup[i].cmds;
985 context_fns->n_cmds = rpc_lookup[i].n_cmds;
986 context_fns->context_id = context_id;
988 /* add to the list of open contexts */
990 DLIST_ADD( p->contexts, context_fns );
995 /*******************************************************************
996 Register commands to an RPC pipe
997 *******************************************************************/
999 NTSTATUS rpc_srv_register(int version, const char *clnt, const char *srv,
1000 const struct ndr_interface_table *iface,
1001 const struct api_struct *cmds, int size)
1003 struct rpc_table *rpc_entry;
1005 if (!clnt || !srv || !cmds) {
1006 return NT_STATUS_INVALID_PARAMETER;
1009 if (version != SMB_RPC_INTERFACE_VERSION) {
1010 DEBUG(0,("Can't register rpc commands!\n"
1011 "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
1012 ", while this version of samba uses version %d!\n",
1013 version,SMB_RPC_INTERFACE_VERSION));
1014 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1019 * we still need to make sure that don't register the same commands twice!!!
1024 /* We use a temporary variable because this call can fail and
1025 rpc_lookup will still be valid afterwards. It could then succeed if
1026 called again later */
1028 rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
1029 if (NULL == rpc_entry) {
1031 DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
1032 return NT_STATUS_NO_MEMORY;
1034 rpc_lookup = rpc_entry;
1037 rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
1038 ZERO_STRUCTP(rpc_entry);
1039 rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
1040 rpc_entry->pipe.srv = SMB_STRDUP(srv);
1041 rpc_entry->rpc_interface = iface->syntax_id;
1042 rpc_entry->cmds = cmds;
1043 rpc_entry->n_cmds = size;
1045 return NT_STATUS_OK;
1049 * Is a named pipe known?
1050 * @param[in] cli_filename The pipe name requested by the client
1051 * @result Do we want to serve this?
1053 bool is_known_pipename(const char *cli_filename, struct ndr_syntax_id *syntax)
1055 const char *pipename = cli_filename;
1058 if (strnequal(pipename, "\\PIPE\\", 6)) {
1062 if (*pipename == '\\') {
1066 if (lp_disable_spoolss() && strequal(pipename, "spoolss")) {
1067 DEBUG(10, ("refusing spoolss access\n"));
1071 for (i=0; i<rpc_lookup_size; i++) {
1072 if (strequal(pipename, rpc_lookup[i].pipe.clnt)) {
1073 *syntax = rpc_lookup[i].rpc_interface;
1078 DEBUG(10, ("is_known_pipename: %s unknown\n", cli_filename));
1082 /*******************************************************************
1083 Handle a SPNEGO krb5 bind auth.
1084 *******************************************************************/
1086 static bool pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
1087 DATA_BLOB *psecblob, prs_struct *pout_auth)
1092 /*******************************************************************
1093 Handle the first part of a SPNEGO bind auth.
1094 *******************************************************************/
1096 static bool pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
1097 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1103 char *OIDs[ASN1_MAX_OIDS];
1106 bool got_kerberos_mechanism = false;
1107 AUTH_NTLMSSP_STATE *a = NULL;
1108 RPC_HDR_AUTH auth_info;
1110 ZERO_STRUCT(secblob);
1112 ZERO_STRUCT(response);
1114 /* Grab the SPNEGO blob. */
1115 blob = data_blob(NULL,p->hdr.auth_len);
1117 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1118 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
1119 (unsigned int)p->hdr.auth_len ));
1123 if (blob.data[0] != ASN1_APPLICATION(0)) {
1127 /* parse out the OIDs and the first sec blob */
1128 if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
1129 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
1133 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
1134 got_kerberos_mechanism = true;
1137 for (i=0;OIDs[i];i++) {
1138 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
1139 TALLOC_FREE(OIDs[i]);
1141 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
1143 if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || USE_KERBEROS_KEYTAB) ) {
1144 bool ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
1145 data_blob_free(&secblob);
1146 data_blob_free(&blob);
1150 if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
1151 /* Free any previous auth type. */
1152 free_pipe_ntlmssp_auth_data(&p->auth);
1155 if (!got_kerberos_mechanism) {
1156 /* Initialize the NTLM engine. */
1157 status = auth_ntlmssp_start(&a);
1158 if (!NT_STATUS_IS_OK(status)) {
1163 * Pass the first security blob of data to it.
1164 * This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
1165 * which means we need another packet to complete the bind.
1168 status = auth_ntlmssp_update(a, secblob, &chal);
1170 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1171 DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
1175 /* Generate the response blob we need for step 2 of the bind. */
1176 response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
1179 * SPNEGO negotiate down to NTLMSSP. The subsequent
1180 * code to process follow-up packets is not complete
1183 response = spnego_gen_auth_response(NULL,
1184 NT_STATUS_MORE_PROCESSING_REQUIRED,
1188 /* Copy the blob into the pout_auth parse struct */
1189 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1190 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1191 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
1195 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1196 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
1200 p->auth.a_u.auth_ntlmssp_state = a;
1201 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1202 p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
1204 data_blob_free(&blob);
1205 data_blob_free(&secblob);
1206 data_blob_free(&chal);
1207 data_blob_free(&response);
1209 /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
1214 data_blob_free(&blob);
1215 data_blob_free(&secblob);
1216 data_blob_free(&chal);
1217 data_blob_free(&response);
1219 p->auth.a_u.auth_ntlmssp_state = NULL;
1224 /*******************************************************************
1225 Handle the second part of a SPNEGO bind auth.
1226 *******************************************************************/
1228 static bool pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
1229 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1231 RPC_HDR_AUTH auth_info;
1232 DATA_BLOB spnego_blob;
1233 DATA_BLOB auth_blob;
1234 DATA_BLOB auth_reply;
1236 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1238 ZERO_STRUCT(spnego_blob);
1239 ZERO_STRUCT(auth_blob);
1240 ZERO_STRUCT(auth_reply);
1241 ZERO_STRUCT(response);
1244 * NB. If we've negotiated down from krb5 to NTLMSSP we'll currently
1245 * fail here as 'a' == NULL.
1247 if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
1248 DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
1252 /* Grab the SPNEGO blob. */
1253 spnego_blob = data_blob(NULL,p->hdr.auth_len);
1255 if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
1256 DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
1257 (unsigned int)p->hdr.auth_len ));
1261 if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
1262 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
1266 if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
1267 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
1272 * The following call actually checks the challenge/response data.
1273 * for correctness against the given DOMAIN\user name.
1276 if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
1280 data_blob_free(&spnego_blob);
1281 data_blob_free(&auth_blob);
1283 /* Generate the spnego "accept completed" blob - no incoming data. */
1284 response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
1286 /* Copy the blob into the pout_auth parse struct */
1287 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1288 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1289 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
1293 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1294 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
1298 data_blob_free(&auth_reply);
1299 data_blob_free(&response);
1301 p->pipe_bound = True;
1307 data_blob_free(&spnego_blob);
1308 data_blob_free(&auth_blob);
1309 data_blob_free(&auth_reply);
1310 data_blob_free(&response);
1312 free_pipe_ntlmssp_auth_data(&p->auth);
1313 p->auth.a_u.auth_ntlmssp_state = NULL;
1318 /*******************************************************************
1319 Handle an schannel bind auth.
1320 *******************************************************************/
1322 static bool pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1323 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1325 RPC_HDR_AUTH auth_info;
1326 RPC_AUTH_SCHANNEL_NEG neg;
1327 RPC_AUTH_VERIFIER auth_verifier;
1329 struct dcinfo *pdcinfo;
1331 DATA_BLOB session_key;
1333 if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
1334 DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
1339 * The neg.myname key here must match the remote computer name
1340 * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
1341 * operations that use credentials.
1345 ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
1349 DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
1353 p->auth.a_u.schannel_auth = talloc(p, struct schannel_auth_struct);
1354 if (!p->auth.a_u.schannel_auth) {
1355 TALLOC_FREE(pdcinfo);
1359 memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
1360 memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
1361 sizeof(pdcinfo->sess_key));
1363 TALLOC_FREE(pdcinfo);
1365 p->auth.a_u.schannel_auth->seq_num = 0;
1368 * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
1369 * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
1370 * struct of the person who opened the pipe. I need to test this further. JRA.
1372 * VL. As we are mapping this to guest set the generic key
1373 * "SystemLibraryDTC" key here. It's a bit difficult to test against
1374 * W2k3, as it does not allow schannel binds against SAMR and LSA
1378 session_key = generic_session_key();
1379 if (session_key.data == NULL) {
1380 DEBUG(0, ("pipe_schannel_auth_bind: Could not alloc session"
1385 ret = server_info_set_session_key(p->server_info, session_key);
1387 data_blob_free(&session_key);
1390 DEBUG(0, ("server_info_set_session_key failed\n"));
1394 init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1395 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1396 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1400 /*** SCHANNEL verifier ***/
1402 init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
1403 if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
1404 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
1408 prs_align(pout_auth);
1411 if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
1415 DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
1416 neg.domain, neg.myname));
1418 /* We're finished with this bind - no more packets. */
1419 p->auth.auth_data_free_func = NULL;
1420 p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
1422 p->pipe_bound = True;
1427 /*******************************************************************
1428 Handle an NTLMSSP bind auth.
1429 *******************************************************************/
1431 static bool pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1432 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1434 RPC_HDR_AUTH auth_info;
1438 AUTH_NTLMSSP_STATE *a = NULL;
1441 ZERO_STRUCT(response);
1443 /* Grab the NTLMSSP blob. */
1444 blob = data_blob(NULL,p->hdr.auth_len);
1446 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1447 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
1448 (unsigned int)p->hdr.auth_len ));
1452 if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
1453 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
1457 /* We have an NTLMSSP blob. */
1458 status = auth_ntlmssp_start(&a);
1459 if (!NT_STATUS_IS_OK(status)) {
1460 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
1461 nt_errstr(status) ));
1465 status = auth_ntlmssp_update(a, blob, &response);
1466 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1467 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
1468 nt_errstr(status) ));
1472 data_blob_free(&blob);
1474 /* Copy the blob into the pout_auth parse struct */
1475 init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1476 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1477 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1481 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1482 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
1486 p->auth.a_u.auth_ntlmssp_state = a;
1487 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1488 p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
1490 data_blob_free(&blob);
1491 data_blob_free(&response);
1493 DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
1495 /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
1500 data_blob_free(&blob);
1501 data_blob_free(&response);
1503 free_pipe_ntlmssp_auth_data(&p->auth);
1504 p->auth.a_u.auth_ntlmssp_state = NULL;
1508 /*******************************************************************
1509 Respond to a pipe bind request.
1510 *******************************************************************/
1512 bool api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
1516 RPC_HDR_AUTH auth_info;
1518 fstring ack_pipe_name;
1519 prs_struct out_hdr_ba;
1520 prs_struct out_auth;
1523 unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
1525 /* No rebinds on a bound pipe - use alter context. */
1526 if (p->pipe_bound) {
1527 DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound "
1528 "pipe %s.\n", get_pipe_name_from_iface(&p->syntax)));
1529 return setup_bind_nak(p);
1532 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
1535 * Marshall directly into the outgoing PDU space. We
1536 * must do this as we need to set to the bind response
1537 * header and are never sending more than one PDU here.
1541 * Setup the memory to marshall the ba header, and the
1545 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1546 DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
1547 prs_mem_free(&p->out_data.frag);
1551 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1552 DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
1553 prs_mem_free(&p->out_data.frag);
1554 prs_mem_free(&out_hdr_ba);
1558 DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
1560 ZERO_STRUCT(hdr_rb);
1562 /* decode the bind request */
1564 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1565 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB "
1570 if (hdr_rb.num_contexts == 0) {
1571 DEBUG(0, ("api_pipe_bind_req: no rpc contexts around\n"));
1576 * Try and find the correct pipe name to ensure
1577 * that this is a pipe name we support.
1580 for (i = 0; i < rpc_lookup_size; i++) {
1581 if (ndr_syntax_id_equal(&rpc_lookup[i].rpc_interface,
1582 &hdr_rb.rpc_context[0].abstract)) {
1583 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1584 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1589 if (i == rpc_lookup_size) {
1592 status = smb_probe_module(
1593 "rpc", get_pipe_name_from_iface(
1594 &hdr_rb.rpc_context[0].abstract));
1596 if (NT_STATUS_IS_ERR(status)) {
1597 DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
1598 get_pipe_name_from_iface(&hdr_rb.rpc_context[0].abstract)));
1599 prs_mem_free(&p->out_data.frag);
1600 prs_mem_free(&out_hdr_ba);
1601 prs_mem_free(&out_auth);
1603 return setup_bind_nak(p);
1606 for (i = 0; i < rpc_lookup_size; i++) {
1607 if (strequal(rpc_lookup[i].pipe.clnt,
1608 get_pipe_name_from_iface(&p->syntax))) {
1609 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1610 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1615 if (i == rpc_lookup_size) {
1616 DEBUG(0, ("module %s doesn't provide functions for "
1618 get_pipe_name_from_iface(&p->syntax),
1619 get_pipe_name_from_iface(&p->syntax)));
1624 /* name has to be \PIPE\xxxxx */
1625 fstrcpy(ack_pipe_name, "\\PIPE\\");
1626 fstrcat(ack_pipe_name, rpc_lookup[i].pipe.srv);
1628 DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
1631 * Check if this is an authenticated bind request.
1634 if (p->hdr.auth_len) {
1636 * Decode the authentication verifier.
1639 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1640 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1644 auth_type = auth_info.auth_type;
1646 /* Work out if we have to sign or seal etc. */
1647 switch (auth_info.auth_level) {
1648 case RPC_AUTH_LEVEL_INTEGRITY:
1649 p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
1651 case RPC_AUTH_LEVEL_PRIVACY:
1652 p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
1655 DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
1656 (unsigned int)auth_info.auth_level ));
1660 ZERO_STRUCT(auth_info);
1663 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1666 case RPC_NTLMSSP_AUTH_TYPE:
1667 if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1673 case RPC_SCHANNEL_AUTH_TYPE:
1674 if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1679 case RPC_SPNEGO_AUTH_TYPE:
1680 if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
1685 case RPC_ANONYMOUS_AUTH_TYPE:
1686 /* Unauthenticated bind request. */
1687 /* We're finished - no more packets. */
1688 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
1689 /* We must set the pipe auth_level here also. */
1690 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
1691 p->pipe_bound = True;
1692 /* The session key was initialized from the SMB
1693 * session in make_internal_rpc_pipe_p */
1697 DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
1702 * Create the bind response struct.
1705 /* If the requested abstract synt uuid doesn't match our client pipe,
1706 reject the bind_ack & set the transfer interface synt to all 0's,
1707 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1709 Needed when adding entries to a DACL from NT5 - SK */
1711 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1712 hdr_rb.rpc_context[0].context_id )) {
1713 init_rpc_hdr_ba(&hdr_ba,
1714 RPC_MAX_PDU_FRAG_LEN,
1715 RPC_MAX_PDU_FRAG_LEN,
1719 &hdr_rb.rpc_context[0].transfer[0]);
1721 RPC_IFACE null_interface;
1722 ZERO_STRUCT(null_interface);
1723 /* Rejection reason: abstract syntax not supported */
1724 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1725 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1726 ack_pipe_name, 0x1, 0x2, 0x1,
1728 p->pipe_bound = False;
1735 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1736 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
1741 * Create the header, now we know the length.
1744 if (prs_offset(&out_auth)) {
1745 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1748 init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
1750 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1754 * Marshall the header into the outgoing PDU.
1757 if(!smb_io_rpc_hdr("", &p->hdr, &p->out_data.frag, 0)) {
1758 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
1763 * Now add the RPC_HDR_BA and any auth needed.
1766 if(!prs_append_prs_data(&p->out_data.frag, &out_hdr_ba)) {
1767 DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
1771 if (auth_len && !prs_append_prs_data( &p->out_data.frag, &out_auth)) {
1772 DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
1777 * Setup the lengths for the initial reply.
1780 p->out_data.data_sent_length = 0;
1781 p->out_data.current_pdu_sent = 0;
1783 prs_mem_free(&out_hdr_ba);
1784 prs_mem_free(&out_auth);
1790 prs_mem_free(&p->out_data.frag);
1791 prs_mem_free(&out_hdr_ba);
1792 prs_mem_free(&out_auth);
1793 return setup_bind_nak(p);
1796 /****************************************************************************
1797 Deal with an alter context call. Can be third part of 3 leg auth request for
1799 ****************************************************************************/
1801 bool api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
1805 RPC_HDR_AUTH auth_info;
1807 fstring ack_pipe_name;
1808 prs_struct out_hdr_ba;
1809 prs_struct out_auth;
1812 prs_init_empty(&p->out_data.frag, p->mem_ctx, MARSHALL);
1815 * Marshall directly into the outgoing PDU space. We
1816 * must do this as we need to set to the bind response
1817 * header and are never sending more than one PDU here.
1821 * Setup the memory to marshall the ba header, and the
1825 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1826 DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
1827 prs_mem_free(&p->out_data.frag);
1831 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1832 DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
1833 prs_mem_free(&p->out_data.frag);
1834 prs_mem_free(&out_hdr_ba);
1838 ZERO_STRUCT(hdr_rb);
1840 DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
1842 /* decode the alter context request */
1843 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1844 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
1848 /* secondary address CAN be NULL
1849 * as the specs say it's ignored.
1850 * It MUST be NULL to have the spoolss working.
1852 fstrcpy(ack_pipe_name,"");
1854 DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
1857 * Check if this is an authenticated alter context request.
1860 if (p->hdr.auth_len != 0) {
1862 * Decode the authentication verifier.
1865 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1866 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1871 * Currently only the SPNEGO auth type uses the alter ctx
1872 * response in place of the NTLMSSP auth3 type.
1875 if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
1876 /* We can only finish if the pipe is unbound. */
1877 if (!p->pipe_bound) {
1878 if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
1886 ZERO_STRUCT(auth_info);
1889 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1892 * Create the bind response struct.
1895 /* If the requested abstract synt uuid doesn't match our client pipe,
1896 reject the bind_ack & set the transfer interface synt to all 0's,
1897 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1899 Needed when adding entries to a DACL from NT5 - SK */
1901 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1902 hdr_rb.rpc_context[0].context_id )) {
1903 init_rpc_hdr_ba(&hdr_ba,
1904 RPC_MAX_PDU_FRAG_LEN,
1905 RPC_MAX_PDU_FRAG_LEN,
1909 &hdr_rb.rpc_context[0].transfer[0]);
1911 RPC_IFACE null_interface;
1912 ZERO_STRUCT(null_interface);
1913 /* Rejection reason: abstract syntax not supported */
1914 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1915 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1916 ack_pipe_name, 0x1, 0x2, 0x1,
1918 p->pipe_bound = False;
1925 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1926 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
1931 * Create the header, now we know the length.
1934 if (prs_offset(&out_auth)) {
1935 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1938 init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
1940 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1944 * Marshall the header into the outgoing PDU.
1947 if(!smb_io_rpc_hdr("", &p->hdr, &p->out_data.frag, 0)) {
1948 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
1953 * Now add the RPC_HDR_BA and any auth needed.
1956 if(!prs_append_prs_data(&p->out_data.frag, &out_hdr_ba)) {
1957 DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
1961 if (auth_len && !prs_append_prs_data(&p->out_data.frag, &out_auth)) {
1962 DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
1967 * Setup the lengths for the initial reply.
1970 p->out_data.data_sent_length = 0;
1971 p->out_data.current_pdu_sent = 0;
1973 prs_mem_free(&out_hdr_ba);
1974 prs_mem_free(&out_auth);
1980 prs_mem_free(&p->out_data.frag);
1981 prs_mem_free(&out_hdr_ba);
1982 prs_mem_free(&out_auth);
1983 return setup_bind_nak(p);
1986 /****************************************************************************
1987 Deal with NTLMSSP sign & seal processing on an RPC request.
1988 ****************************************************************************/
1990 bool api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
1991 uint32 *p_ss_padding_len, NTSTATUS *pstatus)
1993 RPC_HDR_AUTH auth_info;
1994 uint32 auth_len = p->hdr.auth_len;
1995 uint32 save_offset = prs_offset(rpc_in);
1996 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1997 unsigned char *data = NULL;
1999 unsigned char *full_packet_data = NULL;
2000 size_t full_packet_data_len;
2001 DATA_BLOB auth_blob;
2003 *pstatus = NT_STATUS_OK;
2005 if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
2010 *pstatus = NT_STATUS_INVALID_PARAMETER;
2014 /* Ensure there's enough data for an authenticated request. */
2015 if ((auth_len > RPC_MAX_SIGN_SIZE) ||
2016 (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
2017 DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
2018 (unsigned int)auth_len ));
2019 *pstatus = NT_STATUS_INVALID_PARAMETER;
2024 * We need the full packet data + length (minus auth stuff) as well as the packet data + length
2025 * after the RPC header.
2026 * We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
2027 * functions as NTLMv2 checks the rpc headers also.
2030 data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
2031 data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
2033 full_packet_data = p->in_data.current_in_pdu;
2034 full_packet_data_len = p->hdr.frag_len - auth_len;
2036 /* Pull the auth header and the following data into a blob. */
2037 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2038 DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
2039 (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
2040 *pstatus = NT_STATUS_INVALID_PARAMETER;
2044 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2045 DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
2046 *pstatus = NT_STATUS_INVALID_PARAMETER;
2050 auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
2051 auth_blob.length = auth_len;
2053 switch (p->auth.auth_level) {
2054 case PIPE_AUTH_LEVEL_PRIVACY:
2055 /* Data is encrypted. */
2056 *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
2059 full_packet_data_len,
2061 if (!NT_STATUS_IS_OK(*pstatus)) {
2065 case PIPE_AUTH_LEVEL_INTEGRITY:
2066 /* Data is signed. */
2067 *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
2070 full_packet_data_len,
2072 if (!NT_STATUS_IS_OK(*pstatus)) {
2077 *pstatus = NT_STATUS_INVALID_PARAMETER;
2082 * Return the current pointer to the data offset.
2085 if(!prs_set_offset(rpc_in, save_offset)) {
2086 DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
2087 (unsigned int)save_offset ));
2088 *pstatus = NT_STATUS_INVALID_PARAMETER;
2093 * Remember the padding length. We must remove it from the real data
2094 * stream once the sign/seal is done.
2097 *p_ss_padding_len = auth_info.auth_pad_len;
2102 /****************************************************************************
2103 Deal with schannel processing on an RPC request.
2104 ****************************************************************************/
2106 bool api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
2110 uint32 save_offset = prs_offset(rpc_in);
2111 RPC_HDR_AUTH auth_info;
2112 RPC_AUTH_SCHANNEL_CHK schannel_chk;
2114 auth_len = p->hdr.auth_len;
2116 if (auth_len < RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN ||
2117 auth_len > RPC_HEADER_LEN +
2121 DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
2126 * The following is that length of the data we must verify or unseal.
2127 * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
2128 * preceeding the auth_data.
2131 if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
2132 DEBUG(0,("Incorrect frag %u, auth %u.\n",
2133 (unsigned int)p->hdr.frag_len,
2134 (unsigned int)auth_len ));
2138 data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
2139 RPC_HDR_AUTH_LEN - auth_len;
2141 DEBUG(5,("data %d auth %d\n", data_len, auth_len));
2143 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2144 DEBUG(0,("cannot move offset to %u.\n",
2145 (unsigned int)RPC_HDR_REQ_LEN + data_len ));
2149 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2150 DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
2154 if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
2155 DEBUG(0,("Invalid auth info %d on schannel\n",
2156 auth_info.auth_type));
2160 if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
2161 DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
2165 if (!schannel_decode(p->auth.a_u.schannel_auth,
2167 SENDER_IS_INITIATOR,
2169 prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
2170 DEBUG(3,("failed to decode PDU\n"));
2175 * Return the current pointer to the data offset.
2178 if(!prs_set_offset(rpc_in, save_offset)) {
2179 DEBUG(0,("failed to set offset back to %u\n",
2180 (unsigned int)save_offset ));
2184 /* The sequence number gets incremented on both send and receive. */
2185 p->auth.a_u.schannel_auth->seq_num++;
2188 * Remember the padding length. We must remove it from the real data
2189 * stream once the sign/seal is done.
2192 *p_ss_padding_len = auth_info.auth_pad_len;
2197 /****************************************************************************
2198 Find the set of RPC functions associated with this context_id
2199 ****************************************************************************/
2201 static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
2203 PIPE_RPC_FNS *fns = NULL;
2206 DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
2210 for (fns=list; fns; fns=fns->next ) {
2211 if ( fns->context_id == context_id )
2217 /****************************************************************************
2219 ****************************************************************************/
2221 void free_pipe_rpc_context( PIPE_RPC_FNS *list )
2223 PIPE_RPC_FNS *tmp = list;
2235 static bool api_rpcTNP(pipes_struct *p,
2236 const struct api_struct *api_rpc_cmds, int n_cmds);
2238 /****************************************************************************
2239 Find the correct RPC function to call for this request.
2240 If the pipe is authenticated then become the correct UNIX user
2241 before doing the call.
2242 ****************************************************************************/
2244 bool api_pipe_request(pipes_struct *p)
2247 bool changed_user = False;
2248 PIPE_RPC_FNS *pipe_fns;
2250 if (p->pipe_bound &&
2251 ((p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) ||
2252 (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
2253 if(!become_authenticated_pipe_user(p)) {
2254 prs_mem_free(&p->out_data.rdata);
2257 changed_user = True;
2260 DEBUG(5, ("Requested \\PIPE\\%s\n",
2261 get_pipe_name_from_iface(&p->syntax)));
2263 /* get the set of RPC functions for this context */
2265 pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
2268 TALLOC_CTX *frame = talloc_stackframe();
2269 ret = api_rpcTNP(p, pipe_fns->cmds, pipe_fns->n_cmds);
2273 DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
2274 p->hdr_req.context_id,
2275 get_pipe_name_from_iface(&p->syntax)));
2279 unbecome_authenticated_pipe_user();
2285 /*******************************************************************
2286 Calls the underlying RPC function for a named pipe.
2287 ********************************************************************/
2289 static bool api_rpcTNP(pipes_struct *p,
2290 const struct api_struct *api_rpc_cmds, int n_cmds)
2293 uint32 offset1, offset2;
2295 /* interpret the command */
2296 DEBUG(4,("api_rpcTNP: %s op 0x%x - ",
2297 get_pipe_name_from_iface(&p->syntax), p->hdr_req.opnum));
2299 if (DEBUGLEVEL >= 50) {
2301 slprintf(name, sizeof(name)-1, "in_%s",
2302 get_pipe_name_from_iface(&p->syntax));
2303 prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
2306 for (fn_num = 0; fn_num < n_cmds; fn_num++) {
2307 if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
2308 DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
2313 if (fn_num == n_cmds) {
2315 * For an unknown RPC just return a fault PDU but
2316 * return True to allow RPC's on the pipe to continue
2317 * and not put the pipe into fault state. JRA.
2319 DEBUG(4, ("unknown\n"));
2320 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2324 offset1 = prs_offset(&p->out_data.rdata);
2326 DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
2327 fn_num, api_rpc_cmds[fn_num].fn));
2328 /* do the actual command */
2329 if(!api_rpc_cmds[fn_num].fn(p)) {
2330 DEBUG(0,("api_rpcTNP: %s: %s failed.\n",
2331 get_pipe_name_from_iface(&p->syntax),
2332 api_rpc_cmds[fn_num].name));
2333 prs_mem_free(&p->out_data.rdata);
2337 if (p->bad_handle_fault_state) {
2338 DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
2339 p->bad_handle_fault_state = False;
2340 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
2344 if (p->rng_fault_state) {
2345 DEBUG(4, ("api_rpcTNP: rng fault return\n"));
2346 p->rng_fault_state = False;
2347 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2351 offset2 = prs_offset(&p->out_data.rdata);
2352 prs_set_offset(&p->out_data.rdata, offset1);
2353 if (DEBUGLEVEL >= 50) {
2355 slprintf(name, sizeof(name)-1, "out_%s",
2356 get_pipe_name_from_iface(&p->syntax));
2357 prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
2359 prs_set_offset(&p->out_data.rdata, offset2);
2361 DEBUG(5,("api_rpcTNP: called %s successfully\n",
2362 get_pipe_name_from_iface(&p->syntax)));
2364 /* Check for buffer underflow in rpc parsing */
2366 if ((DEBUGLEVEL >= 10) &&
2367 (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
2368 size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
2369 char *data = (char *)SMB_MALLOC(data_len);
2371 DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
2373 prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);