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, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 /* this module apparently provides an implementation of DCE/RPC over a
22 * named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
23 * documentation are available (in on-line form) from the X-Open group.
25 * this module should provide a level of abstraction between SMB
26 * and DCE/RPC, while minimising the amount of mallocs, unnecessary
27 * data copies, and network traffic.
33 extern struct pipe_id_info pipe_names[];
34 extern struct current_user current_user;
37 #define DBGC_CLASS DBGC_RPC_SRV
39 static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
41 AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
46 auth->a_u.auth_ntlmssp_state = NULL;
49 static DATA_BLOB generic_session_key(void)
51 return data_blob("SystemLibraryDTC", 16);
54 /*******************************************************************
55 Generate the next PDU to be returned from the data in p->rdata.
57 ********************************************************************/
59 static BOOL create_next_pdu_ntlmssp(pipes_struct *p)
61 RPC_HDR_RESP hdr_resp;
62 uint32 ss_padding_len = 0;
63 uint32 data_space_available;
66 prs_struct outgoing_pdu;
69 RPC_HDR_AUTH auth_info;
70 uint8 auth_type, auth_level;
71 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
74 * If we're in the fault state, keep returning fault PDU's until
75 * the pipe gets closed. JRA.
79 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
83 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
85 /* Change the incoming request header to a response. */
86 p->hdr.pkt_type = RPC_RESPONSE;
88 /* Set up rpc header flags. */
89 if (p->out_data.data_sent_length == 0) {
90 p->hdr.flags = RPC_FLG_FIRST;
96 * Work out how much we can fit in a single PDU.
99 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
102 * Ensure there really is data left to send.
106 DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
110 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
111 RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
114 * The amount we send is the minimum of the available
115 * space and the amount left to send.
118 data_len = MIN(data_len_left, data_space_available);
121 * Set up the alloc hint. This should be the data left to
125 hdr_resp.alloc_hint = data_len_left;
128 * Work out if this PDU will be the last.
131 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
132 p->hdr.flags |= RPC_FLG_LAST;
133 if (data_len_left % 8) {
134 ss_padding_len = 8 - (data_len_left % 8);
135 DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
141 * Set up the header lengths.
144 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
145 data_len + ss_padding_len +
146 RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
147 p->hdr.auth_len = NTLMSSP_SIG_SIZE;
151 * Init the parse struct to point at the outgoing
155 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
156 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
158 /* Store the header in the data stream. */
159 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
160 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
161 prs_mem_free(&outgoing_pdu);
165 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
166 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
167 prs_mem_free(&outgoing_pdu);
171 /* Copy the data into the PDU. */
173 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
174 DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
175 prs_mem_free(&outgoing_pdu);
179 /* Copy the sign/seal padding data. */
180 if (ss_padding_len) {
183 memset(pad, '\0', 8);
184 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
185 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
186 (unsigned int)ss_padding_len));
187 prs_mem_free(&outgoing_pdu);
193 /* Now write out the auth header and null blob. */
194 if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
195 auth_type = RPC_NTLMSSP_AUTH_TYPE;
197 auth_type = RPC_SPNEGO_AUTH_TYPE;
199 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
200 auth_level = RPC_AUTH_LEVEL_PRIVACY;
202 auth_level = RPC_AUTH_LEVEL_INTEGRITY;
205 init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
206 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
207 DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
208 prs_mem_free(&outgoing_pdu);
212 /* Generate the sign blob. */
214 switch (p->auth.auth_level) {
215 case PIPE_AUTH_LEVEL_PRIVACY:
216 /* Data portion is encrypted. */
217 status = ntlmssp_seal_packet(a->ntlmssp_state,
218 (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
219 data_len + ss_padding_len,
220 (unsigned char *)prs_data_p(&outgoing_pdu),
221 (size_t)prs_offset(&outgoing_pdu),
223 if (!NT_STATUS_IS_OK(status)) {
224 data_blob_free(&auth_blob);
225 prs_mem_free(&outgoing_pdu);
229 case PIPE_AUTH_LEVEL_INTEGRITY:
230 /* Data is signed. */
231 status = ntlmssp_sign_packet(a->ntlmssp_state,
232 (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
233 data_len + ss_padding_len,
234 (unsigned char *)prs_data_p(&outgoing_pdu),
235 (size_t)prs_offset(&outgoing_pdu),
237 if (!NT_STATUS_IS_OK(status)) {
238 data_blob_free(&auth_blob);
239 prs_mem_free(&outgoing_pdu);
244 prs_mem_free(&outgoing_pdu);
248 /* Append the auth blob. */
249 if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
250 DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
251 (unsigned int)NTLMSSP_SIG_SIZE));
252 data_blob_free(&auth_blob);
253 prs_mem_free(&outgoing_pdu);
257 data_blob_free(&auth_blob);
260 * Setup the counts for this PDU.
263 p->out_data.data_sent_length += data_len;
264 p->out_data.current_pdu_len = p->hdr.frag_len;
265 p->out_data.current_pdu_sent = 0;
267 prs_mem_free(&outgoing_pdu);
271 /*******************************************************************
272 Generate the next PDU to be returned from the data in p->rdata.
273 Return an schannel authenticated fragment.
274 ********************************************************************/
276 static BOOL create_next_pdu_schannel(pipes_struct *p)
278 RPC_HDR_RESP hdr_resp;
279 uint32 ss_padding_len = 0;
281 uint32 data_space_available;
282 uint32 data_len_left;
283 prs_struct outgoing_pdu;
287 * If we're in the fault state, keep returning fault PDU's until
288 * the pipe gets closed. JRA.
292 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
296 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
298 /* Change the incoming request header to a response. */
299 p->hdr.pkt_type = RPC_RESPONSE;
301 /* Set up rpc header flags. */
302 if (p->out_data.data_sent_length == 0) {
303 p->hdr.flags = RPC_FLG_FIRST;
309 * Work out how much we can fit in a single PDU.
312 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
315 * Ensure there really is data left to send.
319 DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
323 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
324 RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
327 * The amount we send is the minimum of the available
328 * space and the amount left to send.
331 data_len = MIN(data_len_left, data_space_available);
334 * Set up the alloc hint. This should be the data left to
338 hdr_resp.alloc_hint = data_len_left;
341 * Work out if this PDU will be the last.
344 if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
345 p->hdr.flags |= RPC_FLG_LAST;
346 if (data_len_left % 8) {
347 ss_padding_len = 8 - (data_len_left % 8);
348 DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
353 p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
354 RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
355 p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
358 * Init the parse struct to point at the outgoing
362 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
363 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
365 /* Store the header in the data stream. */
366 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
367 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
368 prs_mem_free(&outgoing_pdu);
372 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
373 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
374 prs_mem_free(&outgoing_pdu);
378 /* Store the current offset. */
379 data_pos = prs_offset(&outgoing_pdu);
381 /* Copy the data into the PDU. */
383 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
384 DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
385 prs_mem_free(&outgoing_pdu);
389 /* Copy the sign/seal padding data. */
390 if (ss_padding_len) {
392 memset(pad, '\0', 8);
393 if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
394 DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
395 prs_mem_free(&outgoing_pdu);
402 * Schannel processing.
405 RPC_HDR_AUTH auth_info;
406 RPC_AUTH_SCHANNEL_CHK verf;
408 data = prs_data_p(&outgoing_pdu) + data_pos;
409 /* Check it's the type of reply we were expecting to decode */
411 init_rpc_hdr_auth(&auth_info,
412 RPC_SCHANNEL_AUTH_TYPE,
413 p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
414 RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
417 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
418 DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
419 prs_mem_free(&outgoing_pdu);
423 schannel_encode(p->auth.a_u.schannel_auth,
426 &verf, data, data_len + ss_padding_len);
428 if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
429 &verf, &outgoing_pdu, 0)) {
430 prs_mem_free(&outgoing_pdu);
434 p->auth.a_u.schannel_auth->seq_num++;
438 * Setup the counts for this PDU.
441 p->out_data.data_sent_length += data_len;
442 p->out_data.current_pdu_len = p->hdr.frag_len;
443 p->out_data.current_pdu_sent = 0;
445 prs_mem_free(&outgoing_pdu);
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;
460 prs_struct outgoing_pdu;
463 * If we're in the fault state, keep returning fault PDU's until
464 * the pipe gets closed. JRA.
468 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
472 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
474 /* Change the incoming request header to a response. */
475 p->hdr.pkt_type = RPC_RESPONSE;
477 /* Set up rpc header flags. */
478 if (p->out_data.data_sent_length == 0) {
479 p->hdr.flags = RPC_FLG_FIRST;
485 * Work out how much we can fit in a single PDU.
488 data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
491 * Ensure there really is data left to send.
495 DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
499 data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_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( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
536 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
538 /* Store the header in the data stream. */
539 if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
540 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR.\n"));
541 prs_mem_free(&outgoing_pdu);
545 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
546 DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
547 prs_mem_free(&outgoing_pdu);
551 /* Copy the data into the PDU. */
553 if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, 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(&outgoing_pdu);
560 * Setup the counts for this PDU.
563 p->out_data.data_sent_length += data_len;
564 p->out_data.current_pdu_len = p->hdr.frag_len;
565 p->out_data.current_pdu_sent = 0;
567 prs_mem_free(&outgoing_pdu);
571 /*******************************************************************
572 Generate the next PDU to be returned from the data in p->rdata.
573 ********************************************************************/
575 BOOL create_next_pdu(pipes_struct *p)
577 switch(p->auth.auth_level) {
578 case PIPE_AUTH_LEVEL_NONE:
579 case PIPE_AUTH_LEVEL_CONNECT:
580 /* This is incorrect for auth level connect. Fixme. JRA */
581 return create_next_pdu_noauth(p);
584 switch(p->auth.auth_type) {
585 case PIPE_AUTH_TYPE_NTLMSSP:
586 case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
587 return create_next_pdu_ntlmssp(p);
588 case PIPE_AUTH_TYPE_SCHANNEL:
589 return create_next_pdu_schannel(p);
595 DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
596 (unsigned int)p->auth.auth_level,
597 (unsigned int)p->auth.auth_type));
601 /*******************************************************************
602 Process an NTLMSSP authentication response.
603 If this function succeeds, the user has been authenticated
604 and their domain, name and calling workstation stored in
606 *******************************************************************/
608 static BOOL pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
612 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
614 DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
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 if (a->server_info->ptok == NULL) {
631 DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
632 p->pipe_user.nt_user_token = NULL;
636 /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
637 ensure the underlying NTLMSSP flags are also set. If not we should
640 if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
641 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
642 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
643 "but client declined signing.\n",
648 if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
649 if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
650 DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
651 "but client declined sealing.\n",
657 DEBUG(5,("pipe_ntlmssp_verify_final: OK: user: %s domain: %s workstation: %s\n",
658 a->ntlmssp_state->user, a->ntlmssp_state->domain,
659 a->ntlmssp_state->workstation));
662 * Store the UNIX credential data (uid/gid pair) in the pipe structure.
665 p->pipe_user.ut.uid = a->server_info->uid;
666 p->pipe_user.ut.gid = a->server_info->gid;
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 data_blob_free(&p->session_key);
675 p->session_key = generic_session_key();
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 *)
683 memdup(a->server_info->groups,
684 sizeof(gid_t) * p->pipe_user.ut.ngroups))) {
685 DEBUG(0,("pipe_ntlmssp_verify_final: failed to memdup group list to p->pipe_user.groups\n"));
686 data_blob_free(&p->session_key);
691 if (!a->server_info->ptok) {
692 DEBUG(1,("pipe_ntlmssp_verify_final: Error: Authmodule failed to provide nt_user_token\n"));
693 data_blob_free(&p->session_key);
694 SAFE_FREE(p->pipe_user.ut.groups);
698 p->pipe_user.nt_user_token = dup_nt_token(NULL, a->server_info->ptok);
699 if (!p->pipe_user.nt_user_token) {
700 DEBUG(1,("pipe_ntlmssp_verify_final: dup_nt_token failed.\n"));
701 data_blob_free(&p->session_key);
702 SAFE_FREE(p->pipe_user.ut.groups);
709 /*******************************************************************
710 The switch table for the pipe names and the functions to handle them.
711 *******************************************************************/
718 struct api_struct *cmds;
722 static struct rpc_table *rpc_lookup;
723 static int rpc_lookup_size;
725 /*******************************************************************
726 This is the "stage3" NTLMSSP response after a bind request and reply.
727 *******************************************************************/
729 BOOL api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
731 RPC_HDR_AUTH auth_info;
737 DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
739 if (p->hdr.auth_len == 0) {
740 DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
744 /* 4 bytes padding. */
745 if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
746 DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
751 * Decode the authentication verifier response.
754 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
755 DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
759 if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
760 DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
761 (unsigned int)auth_info.auth_type ));
765 blob = data_blob(NULL,p->hdr.auth_len);
767 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
768 DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
769 (unsigned int)p->hdr.auth_len ));
774 * The following call actually checks the challenge/response data.
775 * for correctness against the given DOMAIN\user name.
778 if (!pipe_ntlmssp_verify_final(p, &blob)) {
782 data_blob_free(&blob);
784 p->pipe_bound = True;
790 data_blob_free(&blob);
791 free_pipe_ntlmssp_auth_data(&p->auth);
792 p->auth.a_u.auth_ntlmssp_state = NULL;
797 /*******************************************************************
798 Marshall a bind_nak pdu.
799 *******************************************************************/
801 static BOOL setup_bind_nak(pipes_struct *p)
803 prs_struct outgoing_rpc;
807 /* Free any memory in the current return data buffer. */
808 prs_mem_free(&p->out_data.rdata);
811 * Marshall directly into the outgoing PDU space. We
812 * must do this as we need to set to the bind response
813 * header and are never sending more than one PDU here.
816 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
817 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
820 * Initialize a bind_nak header.
823 init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
824 p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
827 * Marshall the header into the outgoing PDU.
830 if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
831 DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
832 prs_mem_free(&outgoing_rpc);
837 * Now add the reject reason.
840 if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
841 prs_mem_free(&outgoing_rpc);
845 p->out_data.data_sent_length = 0;
846 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
847 p->out_data.current_pdu_sent = 0;
849 if (p->auth.auth_data_free_func) {
850 (*p->auth.auth_data_free_func)(&p->auth);
852 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
853 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
854 p->pipe_bound = False;
859 /*******************************************************************
860 Marshall a fault pdu.
861 *******************************************************************/
863 BOOL setup_fault_pdu(pipes_struct *p, NTSTATUS status)
865 prs_struct outgoing_pdu;
867 RPC_HDR_RESP hdr_resp;
868 RPC_HDR_FAULT fault_resp;
870 /* Free any memory in the current return data buffer. */
871 prs_mem_free(&p->out_data.rdata);
874 * Marshall directly into the outgoing PDU space. We
875 * must do this as we need to set to the bind response
876 * header and are never sending more than one PDU here.
879 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
880 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
883 * Initialize a fault header.
886 init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
887 p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
890 * Initialize the HDR_RESP and FAULT parts of the PDU.
893 memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
895 fault_resp.status = status;
896 fault_resp.reserved = 0;
899 * Marshall the header into the outgoing PDU.
902 if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
903 DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
904 prs_mem_free(&outgoing_pdu);
908 if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
909 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
910 prs_mem_free(&outgoing_pdu);
914 if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
915 DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\n"));
916 prs_mem_free(&outgoing_pdu);
920 p->out_data.data_sent_length = 0;
921 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
922 p->out_data.current_pdu_sent = 0;
924 prs_mem_free(&outgoing_pdu);
929 /*******************************************************************
930 Marshall a cancel_ack pdu.
931 We should probably check the auth-verifier here.
932 *******************************************************************/
934 BOOL setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
936 prs_struct outgoing_pdu;
937 RPC_HDR ack_reply_hdr;
939 /* Free any memory in the current return data buffer. */
940 prs_mem_free(&p->out_data.rdata);
943 * Marshall directly into the outgoing PDU space. We
944 * must do this as we need to set to the bind response
945 * header and are never sending more than one PDU here.
948 prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
949 prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
952 * Initialize a cancel_ack header.
955 init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
956 p->hdr.call_id, RPC_HEADER_LEN, 0);
959 * Marshall the header into the outgoing PDU.
962 if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
963 DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
964 prs_mem_free(&outgoing_pdu);
968 p->out_data.data_sent_length = 0;
969 p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
970 p->out_data.current_pdu_sent = 0;
972 prs_mem_free(&outgoing_pdu);
977 /*******************************************************************
978 Ensure a bind request has the correct abstract & transfer interface.
979 Used to reject unknown binds from Win2k.
980 *******************************************************************/
982 BOOL check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
983 RPC_IFACE* transfer, uint32 context_id)
985 char *pipe_name = p->name;
989 fstrcpy(pname,"\\PIPE\\");
990 fstrcat(pname,pipe_name);
992 DEBUG(3,("check_bind_req for %s\n", pname));
994 /* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
996 for ( i=0; pipe_names[i].client_pipe; i++ ) {
997 DEBUG(10,("checking %s\n", pipe_names[i].client_pipe));
998 if ( strequal(pipe_names[i].client_pipe, pname)
999 && (abstract->version == pipe_names[i].abstr_syntax.version)
1000 && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct GUID)) == 0)
1001 && (transfer->version == pipe_names[i].trans_syntax.version)
1002 && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct GUID)) == 0) ) {
1003 struct api_struct *fns = NULL;
1005 PIPE_RPC_FNS *context_fns;
1007 if ( !(context_fns = SMB_MALLOC_P(PIPE_RPC_FNS)) ) {
1008 DEBUG(0,("check_bind_req: malloc() failed!\n"));
1012 /* save the RPC function table associated with this bind */
1014 get_pipe_fns(i, &fns, &n_fns);
1016 context_fns->cmds = fns;
1017 context_fns->n_cmds = n_fns;
1018 context_fns->context_id = context_id;
1020 /* add to the list of open contexts */
1022 DLIST_ADD( p->contexts, context_fns );
1028 if(pipe_names[i].client_pipe == NULL) {
1035 /*******************************************************************
1036 Register commands to an RPC pipe
1037 *******************************************************************/
1039 NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
1041 struct rpc_table *rpc_entry;
1043 if (!clnt || !srv || !cmds) {
1044 return NT_STATUS_INVALID_PARAMETER;
1047 if (version != SMB_RPC_INTERFACE_VERSION) {
1048 DEBUG(0,("Can't register rpc commands!\n"
1049 "You tried to register a rpc module with SMB_RPC_INTERFACE_VERSION %d"
1050 ", while this version of samba uses version %d!\n",
1051 version,SMB_RPC_INTERFACE_VERSION));
1052 return NT_STATUS_OBJECT_TYPE_MISMATCH;
1057 * we still need to make sure that don't register the same commands twice!!!
1062 /* We use a temporary variable because this call can fail and
1063 rpc_lookup will still be valid afterwards. It could then succeed if
1064 called again later */
1066 rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
1067 if (NULL == rpc_entry) {
1069 DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
1070 return NT_STATUS_NO_MEMORY;
1072 rpc_lookup = rpc_entry;
1075 rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
1076 ZERO_STRUCTP(rpc_entry);
1077 rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
1078 rpc_entry->pipe.srv = SMB_STRDUP(srv);
1079 rpc_entry->cmds = SMB_REALLOC_ARRAY(rpc_entry->cmds, struct api_struct, rpc_entry->n_cmds + size);
1080 if (!rpc_entry->cmds) {
1081 return NT_STATUS_NO_MEMORY;
1083 memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds, size * sizeof(struct api_struct));
1084 rpc_entry->n_cmds += size;
1086 return NT_STATUS_OK;
1089 /*******************************************************************
1090 Handle a SPNEGO krb5 bind auth.
1091 *******************************************************************/
1093 static BOOL pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
1094 DATA_BLOB *psecblob, prs_struct *pout_auth)
1099 /*******************************************************************
1100 Handle the first part of a SPNEGO bind auth.
1101 *******************************************************************/
1103 static BOOL pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
1104 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1110 char *OIDs[ASN1_MAX_OIDS];
1113 BOOL got_kerberos_mechanism = False;
1114 AUTH_NTLMSSP_STATE *a = NULL;
1115 RPC_HDR_AUTH auth_info;
1117 ZERO_STRUCT(secblob);
1119 ZERO_STRUCT(response);
1121 /* Grab the SPNEGO blob. */
1122 blob = data_blob(NULL,p->hdr.auth_len);
1124 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1125 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
1126 (unsigned int)p->hdr.auth_len ));
1130 if (blob.data[0] != ASN1_APPLICATION(0)) {
1134 /* parse out the OIDs and the first sec blob */
1135 if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
1136 DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
1140 if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
1141 got_kerberos_mechanism = True;
1144 for (i=0;OIDs[i];i++) {
1145 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
1148 DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
1150 if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
1151 BOOL ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
1152 data_blob_free(&secblob);
1153 data_blob_free(&blob);
1157 if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
1158 /* Free any previous auth type. */
1159 free_pipe_ntlmssp_auth_data(&p->auth);
1162 /* Initialize the NTLM engine. */
1163 status = auth_ntlmssp_start(&a);
1164 if (!NT_STATUS_IS_OK(status)) {
1169 * Pass the first security blob of data to it.
1170 * This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
1171 * which means we need another packet to complete the bind.
1174 status = auth_ntlmssp_update(a, secblob, &chal);
1176 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1177 DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
1181 /* Generate the response blob we need for step 2 of the bind. */
1182 response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
1184 /* Copy the blob into the pout_auth parse struct */
1185 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1186 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1187 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
1191 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1192 DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
1196 p->auth.a_u.auth_ntlmssp_state = a;
1197 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1198 p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
1200 data_blob_free(&blob);
1201 data_blob_free(&secblob);
1202 data_blob_free(&chal);
1203 data_blob_free(&response);
1205 /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
1210 data_blob_free(&blob);
1211 data_blob_free(&secblob);
1212 data_blob_free(&chal);
1213 data_blob_free(&response);
1215 p->auth.a_u.auth_ntlmssp_state = NULL;
1220 /*******************************************************************
1221 Handle the second part of a SPNEGO bind auth.
1222 *******************************************************************/
1224 static BOOL pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
1225 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1227 RPC_HDR_AUTH auth_info;
1228 DATA_BLOB spnego_blob;
1229 DATA_BLOB auth_blob;
1230 DATA_BLOB auth_reply;
1232 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1234 ZERO_STRUCT(spnego_blob);
1235 ZERO_STRUCT(auth_blob);
1236 ZERO_STRUCT(auth_reply);
1237 ZERO_STRUCT(response);
1239 if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
1240 DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
1244 /* Grab the SPNEGO blob. */
1245 spnego_blob = data_blob(NULL,p->hdr.auth_len);
1247 if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
1248 DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
1249 (unsigned int)p->hdr.auth_len ));
1253 if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
1254 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
1258 if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
1259 DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
1264 * The following call actually checks the challenge/response data.
1265 * for correctness against the given DOMAIN\user name.
1268 if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
1272 data_blob_free(&spnego_blob);
1273 data_blob_free(&auth_blob);
1275 /* Generate the spnego "accept completed" blob - no incoming data. */
1276 response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
1278 /* Copy the blob into the pout_auth parse struct */
1279 init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1280 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1281 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
1285 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1286 DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
1290 data_blob_free(&auth_reply);
1291 data_blob_free(&response);
1293 p->pipe_bound = True;
1299 data_blob_free(&spnego_blob);
1300 data_blob_free(&auth_blob);
1301 data_blob_free(&auth_reply);
1302 data_blob_free(&response);
1304 free_pipe_ntlmssp_auth_data(&p->auth);
1305 p->auth.a_u.auth_ntlmssp_state = NULL;
1310 /*******************************************************************
1311 Handle an schannel bind auth.
1312 *******************************************************************/
1314 static BOOL pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1315 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1317 RPC_HDR_AUTH auth_info;
1318 RPC_AUTH_SCHANNEL_NEG neg;
1319 RPC_AUTH_VERIFIER auth_verifier;
1321 struct dcinfo *pdcinfo;
1324 if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
1325 DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
1330 * The neg.myname key here must match the remote computer name
1331 * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
1332 * operations that use credentials.
1336 ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
1340 DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
1344 p->auth.a_u.schannel_auth = TALLOC_P(p->pipe_state_mem_ctx, struct schannel_auth_struct);
1345 if (!p->auth.a_u.schannel_auth) {
1346 TALLOC_FREE(pdcinfo);
1350 memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
1351 memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
1352 sizeof(pdcinfo->sess_key));
1354 TALLOC_FREE(pdcinfo);
1356 p->auth.a_u.schannel_auth->seq_num = 0;
1359 * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
1360 * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
1361 * struct of the person who opened the pipe. I need to test this further. JRA.
1363 * VL. As we are mapping this to guest set the generic key
1364 * "SystemLibraryDTC" key here. It's a bit difficult to test against
1365 * W2k3, as it does not allow schannel binds against SAMR and LSA
1369 data_blob_free(&p->session_key);
1370 p->session_key = generic_session_key();
1371 if (p->session_key.data == NULL) {
1372 DEBUG(0, ("pipe_schannel_auth_bind: Could not alloc session"
1377 init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1378 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1379 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1383 /*** SCHANNEL verifier ***/
1385 init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
1386 if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
1387 DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
1391 prs_align(pout_auth);
1394 if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
1398 DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
1399 neg.domain, neg.myname));
1401 /* We're finished with this bind - no more packets. */
1402 p->auth.auth_data_free_func = NULL;
1403 p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
1405 if (!set_current_user_guest(&p->pipe_user)) {
1406 DEBUG(1, ("pipe_schannel_auth_bind: Could not set guest "
1411 p->pipe_bound = True;
1416 /*******************************************************************
1417 Handle an NTLMSSP bind auth.
1418 *******************************************************************/
1420 static BOOL pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
1421 RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
1423 RPC_HDR_AUTH auth_info;
1427 AUTH_NTLMSSP_STATE *a = NULL;
1430 ZERO_STRUCT(response);
1432 /* Grab the NTLMSSP blob. */
1433 blob = data_blob(NULL,p->hdr.auth_len);
1435 if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
1436 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
1437 (unsigned int)p->hdr.auth_len ));
1441 if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
1442 DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
1446 /* We have an NTLMSSP blob. */
1447 status = auth_ntlmssp_start(&a);
1448 if (!NT_STATUS_IS_OK(status)) {
1449 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
1450 nt_errstr(status) ));
1454 status = auth_ntlmssp_update(a, blob, &response);
1455 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1456 DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
1457 nt_errstr(status) ));
1461 data_blob_free(&blob);
1463 /* Copy the blob into the pout_auth parse struct */
1464 init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
1465 if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
1466 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
1470 if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
1471 DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
1475 p->auth.a_u.auth_ntlmssp_state = a;
1476 p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
1477 p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
1479 data_blob_free(&blob);
1480 data_blob_free(&response);
1482 DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
1484 /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
1489 data_blob_free(&blob);
1490 data_blob_free(&response);
1492 free_pipe_ntlmssp_auth_data(&p->auth);
1493 p->auth.a_u.auth_ntlmssp_state = NULL;
1497 /*******************************************************************
1498 Respond to a pipe bind request.
1499 *******************************************************************/
1501 BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
1505 RPC_HDR_AUTH auth_info;
1507 fstring ack_pipe_name;
1508 prs_struct out_hdr_ba;
1509 prs_struct out_auth;
1510 prs_struct outgoing_rpc;
1513 unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
1515 /* No rebinds on a bound pipe - use alter context. */
1516 if (p->pipe_bound) {
1517 DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound pipe %s.\n", p->pipe_srv_name));
1518 return setup_bind_nak(p);
1521 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1524 * Marshall directly into the outgoing PDU space. We
1525 * must do this as we need to set to the bind response
1526 * header and are never sending more than one PDU here.
1529 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1532 * Setup the memory to marshall the ba header, and the
1536 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1537 DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
1538 prs_mem_free(&outgoing_rpc);
1542 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1543 DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
1544 prs_mem_free(&outgoing_rpc);
1545 prs_mem_free(&out_hdr_ba);
1549 DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
1552 * Try and find the correct pipe name to ensure
1553 * that this is a pipe name we support.
1557 for (i = 0; i < rpc_lookup_size; i++) {
1558 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1559 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1560 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1561 fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1566 if (i == rpc_lookup_size) {
1567 if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
1568 DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
1570 prs_mem_free(&outgoing_rpc);
1571 prs_mem_free(&out_hdr_ba);
1572 prs_mem_free(&out_auth);
1574 return setup_bind_nak(p);
1577 for (i = 0; i < rpc_lookup_size; i++) {
1578 if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
1579 DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
1580 rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
1581 fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
1586 if (i == rpc_lookup_size) {
1587 DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
1592 /* decode the bind request */
1593 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1594 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
1598 /* name has to be \PIPE\xxxxx */
1599 fstrcpy(ack_pipe_name, "\\PIPE\\");
1600 fstrcat(ack_pipe_name, p->pipe_srv_name);
1602 DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
1605 * Check if this is an authenticated bind request.
1608 if (p->hdr.auth_len) {
1610 * Decode the authentication verifier.
1613 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1614 DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1618 auth_type = auth_info.auth_type;
1620 /* Work out if we have to sign or seal etc. */
1621 switch (auth_info.auth_level) {
1622 case RPC_AUTH_LEVEL_INTEGRITY:
1623 p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
1625 case RPC_AUTH_LEVEL_PRIVACY:
1626 p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
1629 DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
1630 (unsigned int)auth_info.auth_level ));
1634 ZERO_STRUCT(auth_info);
1637 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1640 case RPC_NTLMSSP_AUTH_TYPE:
1641 if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1647 case RPC_SCHANNEL_AUTH_TYPE:
1648 if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
1653 case RPC_SPNEGO_AUTH_TYPE:
1654 if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
1659 case RPC_ANONYMOUS_AUTH_TYPE:
1660 /* Unauthenticated bind request. */
1661 /* Get the authenticated pipe user from current_user */
1662 if (!copy_current_user(&p->pipe_user, ¤t_user)) {
1663 DEBUG(10, ("Could not copy current user\n"));
1666 /* We're finished - no more packets. */
1667 p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
1668 /* We must set the pipe auth_level here also. */
1669 p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
1670 p->pipe_bound = True;
1671 /* The session key was initialized from the SMB
1672 * session in make_internal_rpc_pipe_p */
1676 DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
1681 * Create the bind response struct.
1684 /* If the requested abstract synt uuid doesn't match our client pipe,
1685 reject the bind_ack & set the transfer interface synt to all 0's,
1686 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1688 Needed when adding entries to a DACL from NT5 - SK */
1690 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1691 hdr_rb.rpc_context[0].context_id )) {
1692 init_rpc_hdr_ba(&hdr_ba,
1693 RPC_MAX_PDU_FRAG_LEN,
1694 RPC_MAX_PDU_FRAG_LEN,
1698 &hdr_rb.rpc_context[0].transfer[0]);
1700 RPC_IFACE null_interface;
1701 ZERO_STRUCT(null_interface);
1702 /* Rejection reason: abstract syntax not supported */
1703 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1704 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1705 ack_pipe_name, 0x1, 0x2, 0x1,
1707 p->pipe_bound = False;
1714 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1715 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
1720 * Create the header, now we know the length.
1723 if (prs_offset(&out_auth)) {
1724 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1727 init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
1729 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1733 * Marshall the header into the outgoing PDU.
1736 if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1737 DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
1742 * Now add the RPC_HDR_BA and any auth needed.
1745 if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1746 DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
1750 if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1751 DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
1756 * Setup the lengths for the initial reply.
1759 p->out_data.data_sent_length = 0;
1760 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1761 p->out_data.current_pdu_sent = 0;
1763 prs_mem_free(&out_hdr_ba);
1764 prs_mem_free(&out_auth);
1770 prs_mem_free(&outgoing_rpc);
1771 prs_mem_free(&out_hdr_ba);
1772 prs_mem_free(&out_auth);
1773 return setup_bind_nak(p);
1776 /****************************************************************************
1777 Deal with an alter context call. Can be third part of 3 leg auth request for
1779 ****************************************************************************/
1781 BOOL api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
1785 RPC_HDR_AUTH auth_info;
1787 fstring ack_pipe_name;
1788 prs_struct out_hdr_ba;
1789 prs_struct out_auth;
1790 prs_struct outgoing_rpc;
1793 prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
1796 * Marshall directly into the outgoing PDU space. We
1797 * must do this as we need to set to the bind response
1798 * header and are never sending more than one PDU here.
1801 prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
1804 * Setup the memory to marshall the ba header, and the
1808 if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
1809 DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
1810 prs_mem_free(&outgoing_rpc);
1814 if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
1815 DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
1816 prs_mem_free(&outgoing_rpc);
1817 prs_mem_free(&out_hdr_ba);
1821 DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
1823 /* decode the alter context request */
1824 if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
1825 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
1829 /* secondary address CAN be NULL
1830 * as the specs say it's ignored.
1831 * It MUST be NULL to have the spoolss working.
1833 fstrcpy(ack_pipe_name,"");
1835 DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
1838 * Check if this is an authenticated alter context request.
1841 if (p->hdr.auth_len != 0) {
1843 * Decode the authentication verifier.
1846 if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
1847 DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
1852 * Currently only the SPNEGO auth type uses the alter ctx
1853 * response in place of the NTLMSSP auth3 type.
1856 if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
1857 /* We can only finish if the pipe is unbound. */
1858 if (!p->pipe_bound) {
1859 if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
1867 ZERO_STRUCT(auth_info);
1870 assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
1873 * Create the bind response struct.
1876 /* If the requested abstract synt uuid doesn't match our client pipe,
1877 reject the bind_ack & set the transfer interface synt to all 0's,
1878 ver 0 (observed when NT5 attempts to bind to abstract interfaces
1880 Needed when adding entries to a DACL from NT5 - SK */
1882 if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
1883 hdr_rb.rpc_context[0].context_id )) {
1884 init_rpc_hdr_ba(&hdr_ba,
1885 RPC_MAX_PDU_FRAG_LEN,
1886 RPC_MAX_PDU_FRAG_LEN,
1890 &hdr_rb.rpc_context[0].transfer[0]);
1892 RPC_IFACE null_interface;
1893 ZERO_STRUCT(null_interface);
1894 /* Rejection reason: abstract syntax not supported */
1895 init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
1896 RPC_MAX_PDU_FRAG_LEN, assoc_gid,
1897 ack_pipe_name, 0x1, 0x2, 0x1,
1899 p->pipe_bound = False;
1906 if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
1907 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
1912 * Create the header, now we know the length.
1915 if (prs_offset(&out_auth)) {
1916 auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
1919 init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
1921 RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
1925 * Marshall the header into the outgoing PDU.
1928 if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
1929 DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
1934 * Now add the RPC_HDR_BA and any auth needed.
1937 if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
1938 DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
1942 if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
1943 DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
1948 * Setup the lengths for the initial reply.
1951 p->out_data.data_sent_length = 0;
1952 p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
1953 p->out_data.current_pdu_sent = 0;
1955 prs_mem_free(&out_hdr_ba);
1956 prs_mem_free(&out_auth);
1962 prs_mem_free(&outgoing_rpc);
1963 prs_mem_free(&out_hdr_ba);
1964 prs_mem_free(&out_auth);
1965 return setup_bind_nak(p);
1968 /****************************************************************************
1969 Deal with NTLMSSP sign & seal processing on an RPC request.
1970 ****************************************************************************/
1972 BOOL api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
1973 uint32 *p_ss_padding_len, NTSTATUS *pstatus)
1975 RPC_HDR_AUTH auth_info;
1976 uint32 auth_len = p->hdr.auth_len;
1977 uint32 save_offset = prs_offset(rpc_in);
1978 AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
1979 unsigned char *data = NULL;
1981 unsigned char *full_packet_data = NULL;
1982 size_t full_packet_data_len;
1983 DATA_BLOB auth_blob;
1985 *pstatus = NT_STATUS_OK;
1987 if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
1992 *pstatus = NT_STATUS_INVALID_PARAMETER;
1996 /* Ensure there's enough data for an authenticated request. */
1997 if ((auth_len > RPC_MAX_SIGN_SIZE) ||
1998 (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
1999 DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
2000 (unsigned int)auth_len ));
2001 *pstatus = NT_STATUS_INVALID_PARAMETER;
2006 * We need the full packet data + length (minus auth stuff) as well as the packet data + length
2007 * after the RPC header.
2008 * We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
2009 * functions as NTLMv2 checks the rpc headers also.
2012 data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
2013 data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
2015 full_packet_data = p->in_data.current_in_pdu;
2016 full_packet_data_len = p->hdr.frag_len - auth_len;
2018 /* Pull the auth header and the following data into a blob. */
2019 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2020 DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
2021 (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
2022 *pstatus = NT_STATUS_INVALID_PARAMETER;
2026 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2027 DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
2028 *pstatus = NT_STATUS_INVALID_PARAMETER;
2032 auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
2033 auth_blob.length = auth_len;
2035 switch (p->auth.auth_level) {
2036 case PIPE_AUTH_LEVEL_PRIVACY:
2037 /* Data is encrypted. */
2038 *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
2041 full_packet_data_len,
2043 if (!NT_STATUS_IS_OK(*pstatus)) {
2047 case PIPE_AUTH_LEVEL_INTEGRITY:
2048 /* Data is signed. */
2049 *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
2052 full_packet_data_len,
2054 if (!NT_STATUS_IS_OK(*pstatus)) {
2059 *pstatus = NT_STATUS_INVALID_PARAMETER;
2064 * Return the current pointer to the data offset.
2067 if(!prs_set_offset(rpc_in, save_offset)) {
2068 DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
2069 (unsigned int)save_offset ));
2070 *pstatus = NT_STATUS_INVALID_PARAMETER;
2075 * Remember the padding length. We must remove it from the real data
2076 * stream once the sign/seal is done.
2079 *p_ss_padding_len = auth_info.auth_pad_len;
2084 /****************************************************************************
2085 Deal with schannel processing on an RPC request.
2086 ****************************************************************************/
2088 BOOL api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
2092 uint32 save_offset = prs_offset(rpc_in);
2093 RPC_HDR_AUTH auth_info;
2094 RPC_AUTH_SCHANNEL_CHK schannel_chk;
2096 auth_len = p->hdr.auth_len;
2098 if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
2099 DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
2104 * The following is that length of the data we must verify or unseal.
2105 * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
2106 * preceeding the auth_data.
2109 if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
2110 DEBUG(0,("Incorrect frag %u, auth %u.\n",
2111 (unsigned int)p->hdr.frag_len,
2112 (unsigned int)auth_len ));
2116 data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
2117 RPC_HDR_AUTH_LEN - auth_len;
2119 DEBUG(5,("data %d auth %d\n", data_len, auth_len));
2121 if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
2122 DEBUG(0,("cannot move offset to %u.\n",
2123 (unsigned int)RPC_HDR_REQ_LEN + data_len ));
2127 if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
2128 DEBUG(0,("failed to unmarshall RPC_HDR_AUTH.\n"));
2132 if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
2133 DEBUG(0,("Invalid auth info %d on schannel\n",
2134 auth_info.auth_type));
2138 if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
2139 DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
2143 if (!schannel_decode(p->auth.a_u.schannel_auth,
2145 SENDER_IS_INITIATOR,
2147 prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
2148 DEBUG(3,("failed to decode PDU\n"));
2153 * Return the current pointer to the data offset.
2156 if(!prs_set_offset(rpc_in, save_offset)) {
2157 DEBUG(0,("failed to set offset back to %u\n",
2158 (unsigned int)save_offset ));
2162 /* The sequence number gets incremented on both send and receive. */
2163 p->auth.a_u.schannel_auth->seq_num++;
2166 * Remember the padding length. We must remove it from the real data
2167 * stream once the sign/seal is done.
2170 *p_ss_padding_len = auth_info.auth_pad_len;
2175 /****************************************************************************
2176 Find the set of RPC functions associated with this context_id
2177 ****************************************************************************/
2179 static PIPE_RPC_FNS* find_pipe_fns_by_context( PIPE_RPC_FNS *list, uint32 context_id )
2181 PIPE_RPC_FNS *fns = NULL;
2182 PIPE_RPC_FNS *tmp = NULL;
2185 DEBUG(0,("find_pipe_fns_by_context: ERROR! No context list for pipe!\n"));
2189 for (tmp=list; tmp; tmp=tmp->next ) {
2190 if ( tmp->context_id == context_id )
2199 /****************************************************************************
2201 ****************************************************************************/
2203 void free_pipe_rpc_context( PIPE_RPC_FNS *list )
2205 PIPE_RPC_FNS *tmp = list;
2217 /****************************************************************************
2218 Find the correct RPC function to call for this request.
2219 If the pipe is authenticated then become the correct UNIX user
2220 before doing the call.
2221 ****************************************************************************/
2223 BOOL api_pipe_request(pipes_struct *p)
2226 BOOL changed_user = False;
2227 PIPE_RPC_FNS *pipe_fns;
2229 if (p->pipe_bound) {
2230 if(!become_authenticated_pipe_user(p)) {
2231 prs_mem_free(&p->out_data.rdata);
2234 changed_user = True;
2237 DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
2239 /* get the set of RPC functions for this context */
2241 pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
2244 set_current_rpc_talloc(p->mem_ctx);
2245 ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
2246 set_current_rpc_talloc(NULL);
2249 DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
2250 p->hdr_req.context_id, p->name));
2254 unbecome_authenticated_pipe_user();
2260 /*******************************************************************
2261 Calls the underlying RPC function for a named pipe.
2262 ********************************************************************/
2264 BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
2265 const struct api_struct *api_rpc_cmds, int n_cmds)
2269 uint32 offset1, offset2;
2271 /* interpret the command */
2272 DEBUG(4,("api_rpcTNP: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
2274 slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
2275 prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
2277 for (fn_num = 0; fn_num < n_cmds; fn_num++) {
2278 if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
2279 DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
2284 if (fn_num == n_cmds) {
2286 * For an unknown RPC just return a fault PDU but
2287 * return True to allow RPC's on the pipe to continue
2288 * and not put the pipe into fault state. JRA.
2290 DEBUG(4, ("unknown\n"));
2291 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2295 offset1 = prs_offset(&p->out_data.rdata);
2297 DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
2298 fn_num, api_rpc_cmds[fn_num].fn));
2299 /* do the actual command */
2300 if(!api_rpc_cmds[fn_num].fn(p)) {
2301 DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
2302 prs_mem_free(&p->out_data.rdata);
2306 if (p->bad_handle_fault_state) {
2307 DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
2308 p->bad_handle_fault_state = False;
2309 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
2313 if (p->rng_fault_state) {
2314 DEBUG(4, ("api_rpcTNP: rng fault return\n"));
2315 p->rng_fault_state = False;
2316 setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
2320 slprintf(name, sizeof(name)-1, "out_%s", rpc_name);
2321 offset2 = prs_offset(&p->out_data.rdata);
2322 prs_set_offset(&p->out_data.rdata, offset1);
2323 prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
2324 prs_set_offset(&p->out_data.rdata, offset2);
2326 DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
2328 /* Check for buffer underflow in rpc parsing */
2330 if ((DEBUGLEVEL >= 10) &&
2331 (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
2332 size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
2333 char *data = (char *)SMB_MALLOC(data_len);
2335 DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
2337 prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
2346 /*******************************************************************
2347 *******************************************************************/
2349 void get_pipe_fns( int idx, struct api_struct **fns, int *n_fns )
2351 struct api_struct *cmds = NULL;
2356 lsa_get_pipe_fns( &cmds, &n_cmds );
2359 lsa_ds_get_pipe_fns( &cmds, &n_cmds );
2362 samr_get_pipe_fns( &cmds, &n_cmds );
2365 netlog_get_pipe_fns( &cmds, &n_cmds );
2368 srvsvc_get_pipe_fns( &cmds, &n_cmds );
2371 wkssvc_get_pipe_fns( &cmds, &n_cmds );
2374 winreg_get_pipe_fns( &cmds, &n_cmds );
2377 spoolss_get_pipe_fns( &cmds, &n_cmds );
2380 netdfs_get_pipe_fns( &cmds, &n_cmds );
2383 svcctl2_get_pipe_fns( &cmds, &n_cmds );
2386 eventlog2_get_pipe_fns( &cmds, &n_cmds );
2389 unixinfo_get_pipe_fns( &cmds, &n_cmds );
2392 ntsvcs_get_pipe_fns( &cmds, &n_cmds );
2396 rpcecho_get_pipe_fns( &cmds, &n_cmds );
2400 epmapper_get_pipe_fns( &cmds, &n_cmds );
2403 DEBUG(0,("get_pipe_fns: Unknown pipe index! [%d]\n", idx));