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s3: remove unused librpc/ndr/sid.c.
[Samba/ekacnet.git] / source3 / nmbd / nmbd_processlogon.c
blobf07628f3ef2acaa2d280798be1c360e17af35f9f
1 /*
2 Unix SMB/CIFS implementation.
3 NBT netbios routines and daemon - version 2
4 Copyright (C) Andrew Tridgell 1994-1998
5 Copyright (C) Luke Kenneth Casson Leighton 1994-1998
6 Copyright (C) Jeremy Allison 1994-2003
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21
22 Revision History:
23
24 */
25
26 #include "includes.h"
27 #include "../libcli/netlogon.h"
28 #include "../libcli/cldap/cldap.h"
29 #include "../lib/tsocket/tsocket.h"
30 #include "../libcli/security/dom_sid.h"
31
32 struct sam_database_info {
33 uint32 index;
34 uint32 serial_lo, serial_hi;
35 uint32 date_lo, date_hi;
36 };
37
38 /**
39 * check whether the client belongs to the hosts
40 * for which initial logon should be delayed...
41 */
42 static bool delay_logon(const char *peer_name, const char *peer_addr)
43 {
44 const char **delay_list = lp_init_logon_delayed_hosts();
45 const char *peer[2];
46
47 if (delay_list == NULL) {
48 return False;
49 }
50
51 peer[0] = peer_name;
52 peer[1] = peer_addr;
53
54 return list_match(delay_list, (const char *)peer, client_match);
55 }
56
57 static void delayed_init_logon_handler(struct event_context *event_ctx,
58 struct timed_event *te,
59 struct timeval now,
60 void *private_data)
61 {
62 struct packet_struct *p = (struct packet_struct *)private_data;
63
64 DEBUG(10, ("delayed_init_logon_handler (%lx): re-queuing packet.\n",
65 (unsigned long)te));
66
67 queue_packet(p);
68
69 TALLOC_FREE(te);
70 }
71
72 struct nmbd_proxy_logon_context {
73 struct cldap_socket *cldap_sock;
74 };
75
76 static struct nmbd_proxy_logon_context *global_nmbd_proxy_logon;
77
78 bool initialize_nmbd_proxy_logon(void)
79 {
80 const char *cldap_server = lp_parm_const_string(-1, "nmbd_proxy_logon",
81 "cldap_server", NULL);
82 struct nmbd_proxy_logon_context *ctx;
83 NTSTATUS status;
84 struct in_addr addr;
85 char addrstr[INET_ADDRSTRLEN];
86 const char *server_str;
87 int ret;
88 struct tsocket_address *server_addr;
89
90 if (!cldap_server) {
91 return true;
92 }
93
94 addr = interpret_addr2(cldap_server);
95 server_str = inet_ntop(AF_INET, &addr,
96 addrstr, sizeof(addrstr));
97 if (!server_str || strcmp("0.0.0.0", server_str) == 0) {
98 DEBUG(0,("Failed to resolve[%s] for nmbd_proxy_logon\n",
99 cldap_server));
100 return false;
101 }
102
103 ctx = talloc_zero(nmbd_event_context(),
104 struct nmbd_proxy_logon_context);
105 if (!ctx) {
106 return false;
107 }
108
109 ret = tsocket_address_inet_from_strings(ctx, "ipv4",
110 server_str, LDAP_PORT,
111 &server_addr);
112 if (ret != 0) {
113 TALLOC_FREE(ctx);
114 status = map_nt_error_from_unix(errno);
115 DEBUG(0,("Failed to create cldap tsocket_address for %s - %s\n",
116 server_str, nt_errstr(status)));
117 return false;
118 }
119
120 /* we create a connected udp socket */
121 status = cldap_socket_init(ctx, nmbd_event_context(), NULL,
122 server_addr, &ctx->cldap_sock);
123 TALLOC_FREE(server_addr);
124 if (!NT_STATUS_IS_OK(status)) {
125 TALLOC_FREE(ctx);
126 DEBUG(0,("failed to create cldap socket for %s: %s\n",
127 server_str, nt_errstr(status)));
128 return false;
129 }
130
131 global_nmbd_proxy_logon = ctx;
132 return true;
133 }
134
135 struct nmbd_proxy_logon_state {
136 struct in_addr local_ip;
137 struct packet_struct *p;
138 const char *remote_name;
139 uint8_t remote_name_type;
140 const char *remote_mailslot;
141 struct nbt_netlogon_packet req;
142 struct nbt_netlogon_response resp;
143 struct cldap_netlogon io;
144 };
145
146 static int nmbd_proxy_logon_state_destructor(struct nmbd_proxy_logon_state *s)
147 {
148 s->p->locked = false;
149 free_packet(s->p);
150 return 0;
151 }
152
153 static void nmbd_proxy_logon_done(struct tevent_req *subreq);
154
155 static void nmbd_proxy_logon(struct nmbd_proxy_logon_context *ctx,
156 struct in_addr local_ip,
157 struct packet_struct *p,
158 uint8_t *buf,
159 uint32_t len)
160 {
161 struct nmbd_proxy_logon_state *state;
162 enum ndr_err_code ndr_err;
163 DATA_BLOB blob = data_blob_const(buf, len);
164 const char *computer_name = NULL;
165 const char *mailslot_name = NULL;
166 const char *user_name = NULL;
167 const char *domain_sid = NULL;
168 uint32_t acct_control = 0;
169 uint32_t nt_version = 0;
170 struct tevent_req *subreq;
171 fstring source_name;
172 struct dgram_packet *dgram = &p->packet.dgram;
173
174 state = TALLOC_ZERO_P(ctx, struct nmbd_proxy_logon_state);
175 if (!state) {
176 DEBUG(0,("failed to allocate nmbd_proxy_logon_state\n"));
177 return;
178 }
179
180 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
181 state->remote_name = talloc_strdup(state, source_name);
182 state->remote_name_type = dgram->source_name.name_type,
183 state->local_ip = local_ip;
184 state->p = p;
185
186 ndr_err = ndr_pull_struct_blob(
187 &blob, state, &state->req,
188 (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_packet);
189 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
190 NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
191 DEBUG(0,("failed parse nbt_netlogon_packet: %s\n",
192 nt_errstr(status)));
193 TALLOC_FREE(state);
194 return;
195 }
196
197 if (DEBUGLEVEL >= 10) {
198 DEBUG(10, ("nmbd_proxy_logon:\n"));
199 NDR_PRINT_DEBUG(nbt_netlogon_packet, &state->req);
200 }
201
202 switch (state->req.command) {
203 case LOGON_SAM_LOGON_REQUEST:
204 computer_name = state->req.req.logon.computer_name;
205 user_name = state->req.req.logon.user_name;
206 mailslot_name = state->req.req.logon.mailslot_name;
207 acct_control = state->req.req.logon.acct_control;
208 if (state->req.req.logon.sid_size > 0) {
209 domain_sid = dom_sid_string(state,
210 &state->req.req.logon.sid);
211 if (!domain_sid) {
212 DEBUG(0,("failed to get a string for sid\n"));
213 TALLOC_FREE(state);
214 return;
215 }
216 }
217 nt_version = state->req.req.logon.nt_version;
218 break;
219
220 default:
221 /* this can't happen as the caller already checks the command */
222 break;
223 }
224
225 state->remote_mailslot = mailslot_name;
226
227 if (user_name && strlen(user_name) == 0) {
228 user_name = NULL;
229 }
230
231 if (computer_name && strlen(computer_name) == 0) {
232 computer_name = NULL;
233 }
234
235 /*
236 * as the socket is connected,
237 * we don't need to specify the destination
238 */
239 state->io.in.dest_address = NULL;
240 state->io.in.dest_port = 0;
241 state->io.in.realm = NULL;
242 state->io.in.host = computer_name;
243 state->io.in.user = user_name;
244 state->io.in.domain_guid = NULL;
245 state->io.in.domain_sid = domain_sid;
246 state->io.in.acct_control = acct_control;
247 state->io.in.version = nt_version;
248 state->io.in.map_response = false;
249
250 subreq = cldap_netlogon_send(state,
251 ctx->cldap_sock,
252 &state->io);
253 if (!subreq) {
254 DEBUG(0,("failed to send cldap netlogon call\n"));
255 TALLOC_FREE(state);
256 return;
257 }
258 tevent_req_set_callback(subreq, nmbd_proxy_logon_done, state);
259
260 /* we reply async */
261 state->p->locked = true;
262 talloc_set_destructor(state, nmbd_proxy_logon_state_destructor);
263 }
264
265 static void nmbd_proxy_logon_done(struct tevent_req *subreq)
266 {
267 struct nmbd_proxy_logon_state *state =
268 tevent_req_callback_data(subreq,
269 struct nmbd_proxy_logon_state);
270 NTSTATUS status;
271 DATA_BLOB response = data_blob_null;
272
273 status = cldap_netlogon_recv(subreq, state, &state->io);
274 if (!NT_STATUS_IS_OK(status)) {
275 DEBUG(0,("failed to recv cldap netlogon call: %s\n",
276 nt_errstr(status)));
277 TALLOC_FREE(state);
278 return;
279 }
280
281 status = push_netlogon_samlogon_response(&response, state,
282 &state->io.out.netlogon);
283 if (!NT_STATUS_IS_OK(status)) {
284 DEBUG(0,("failed to push netlogon_samlogon_response: %s\n",
285 nt_errstr(status)));
286 TALLOC_FREE(state);
287 return;
288 }
289
290 send_mailslot(true, state->remote_mailslot,
291 (char *)response.data, response.length,
292 global_myname(), 0x0,
293 state->remote_name,
294 state->remote_name_type,
295 state->p->ip,
296 state->local_ip,
297 state->p->port);
298 TALLOC_FREE(state);
299 }
300
301 /****************************************************************************
302 Process a domain logon packet
303 **************************************************************************/
304
305 void process_logon_packet(struct packet_struct *p, char *buf,int len,
306 const char *mailslot)
307 {
308 struct dgram_packet *dgram = &p->packet.dgram;
309 fstring my_name;
310 fstring reply_name;
311 char outbuf[1024];
312 int code;
313 uint16 token = 0;
314 uint32 ntversion = 0;
315 uint16 lmnttoken = 0;
316 uint16 lm20token = 0;
317 uint32 domainsidsize;
318 bool short_request = False;
319 char *getdc;
320 char *uniuser; /* Unicode user name. */
321 fstring ascuser;
322 char *unicomp; /* Unicode computer name. */
323 size_t size;
324 struct sockaddr_storage ss;
325 const struct sockaddr_storage *pss;
326 struct in_addr ip;
327
328 in_addr_to_sockaddr_storage(&ss, p->ip);
329 pss = iface_ip((struct sockaddr *)&ss);
330 if (!pss) {
331 DEBUG(5,("process_logon_packet:can't find outgoing interface "
332 "for packet from IP %s\n",
333 inet_ntoa(p->ip) ));
334 return;
335 }
336 ip = ((struct sockaddr_in *)pss)->sin_addr;
337
338 memset(outbuf, 0, sizeof(outbuf));
339
340 if (!lp_domain_logons()) {
341 DEBUG(5,("process_logon_packet: Logon packet received from IP %s and domain \
342 logons are not enabled.\n", inet_ntoa(p->ip) ));
343 return;
344 }
345
346 fstrcpy(my_name, global_myname());
347
348 code = get_safe_SVAL(buf,len,buf,0,-1);
349 DEBUG(4,("process_logon_packet: Logon from %s: code = 0x%x\n", inet_ntoa(p->ip), code));
350
351 switch (code) {
352 case 0:
353 {
354 fstring mach_str, user_str, getdc_str;
355 char *q = buf + 2;
356 char *machine = q;
357 char *user = skip_string(buf,len,machine);
358
359 if (!user || PTR_DIFF(user, buf) >= len) {
360 DEBUG(0,("process_logon_packet: bad packet\n"));
361 return;
362 }
363 getdc = skip_string(buf,len,user);
364
365 if (!getdc || PTR_DIFF(getdc, buf) >= len) {
366 DEBUG(0,("process_logon_packet: bad packet\n"));
367 return;
368 }
369 q = skip_string(buf,len,getdc);
370
371 if (!q || PTR_DIFF(q + 5, buf) > len) {
372 DEBUG(0,("process_logon_packet: bad packet\n"));
373 return;
374 }
375 token = SVAL(q,3);
376
377 fstrcpy(reply_name,my_name);
378
379 pull_ascii_fstring(mach_str, machine);
380 pull_ascii_fstring(user_str, user);
381 pull_ascii_fstring(getdc_str, getdc);
382
383 DEBUG(5,("process_logon_packet: Domain login request from %s at IP %s user=%s token=%x\n",
384 mach_str,inet_ntoa(p->ip),user_str,token));
385
386 q = outbuf;
387 SSVAL(q, 0, 6);
388 q += 2;
389
390 fstrcpy(reply_name, "\\\\");
391 fstrcat(reply_name, my_name);
392 size = push_ascii(q,reply_name,
393 sizeof(outbuf)-PTR_DIFF(q, outbuf),
394 STR_TERMINATE);
395 if (size == (size_t)-1) {
396 return;
397 }
398 q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
399
400 SSVAL(q, 0, token);
401 q += 2;
402
403 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
404
405 send_mailslot(True, getdc_str,
406 outbuf,PTR_DIFF(q,outbuf),
407 global_myname(), 0x0,
408 mach_str,
409 dgram->source_name.name_type,
410 p->ip, ip, p->port);
411 break;
412 }
413
414 case LOGON_PRIMARY_QUERY:
415 {
416 fstring mach_str, getdc_str;
417 fstring source_name;
418 char *q = buf + 2;
419 char *machine = q;
420
421 if (!lp_domain_master()) {
422 /* We're not Primary Domain Controller -- ignore this */
423 return;
424 }
425
426 getdc = skip_string(buf,len,machine);
427
428 if (!getdc || PTR_DIFF(getdc, buf) >= len) {
429 DEBUG(0,("process_logon_packet: bad packet\n"));
430 return;
431 }
432 q = skip_string(buf,len,getdc);
433
434 if (!q || PTR_DIFF(q, buf) >= len) {
435 DEBUG(0,("process_logon_packet: bad packet\n"));
436 return;
437 }
438 q = ALIGN2(q, buf);
439
440 /* At this point we can work out if this is a W9X or NT style
441 request. Experiments show that the difference is wether the
442 packet ends here. For a W9X request we now end with a pair of
443 bytes (usually 0xFE 0xFF) whereas with NT we have two further
444 strings - the following is a simple way of detecting this */
445
446 if (len - PTR_DIFF(q, buf) <= 3) {
447 short_request = True;
448 } else {
449 unicomp = q;
450
451 if (PTR_DIFF(q, buf) >= len) {
452 DEBUG(0,("process_logon_packet: bad packet\n"));
453 return;
454 }
455
456 /* A full length (NT style) request */
457 q = skip_unibuf(unicomp, PTR_DIFF(buf + len, unicomp));
458
459 if (PTR_DIFF(q, buf) >= len) {
460 DEBUG(0,("process_logon_packet: bad packet\n"));
461 return;
462 }
463
464 if (len - PTR_DIFF(q, buf) > 8) {
465 /* with NT5 clients we can sometimes
466 get additional data - a length specificed string
467 containing the domain name, then 16 bytes of
468 data (no idea what it is) */
469 int dom_len = CVAL(q, 0);
470 q++;
471 if (dom_len != 0) {
472 q += dom_len + 1;
473 }
474 q += 16;
475 }
476
477 if (PTR_DIFF(q + 8, buf) > len) {
478 DEBUG(0,("process_logon_packet: bad packet\n"));
479 return;
480 }
481
482 ntversion = IVAL(q, 0);
483 lmnttoken = SVAL(q, 4);
484 lm20token = SVAL(q, 6);
485 }
486
487 /* Construct reply. */
488 q = outbuf;
489 SSVAL(q, 0, NETLOGON_RESPONSE_FROM_PDC);
490 q += 2;
491
492 fstrcpy(reply_name,my_name);
493 size = push_ascii(q, reply_name,
494 sizeof(outbuf)-PTR_DIFF(q, outbuf),
495 STR_TERMINATE);
496 if (size == (size_t)-1) {
497 return;
498 }
499 q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
500
501 /* PDC and domain name */
502 if (!short_request) {
503 /* Make a full reply */
504 q = ALIGN2(q, outbuf);
505
506 q += dos_PutUniCode(q, my_name,
507 sizeof(outbuf) - PTR_DIFF(q, outbuf),
508 True); /* PDC name */
509 q += dos_PutUniCode(q, lp_workgroup(),
510 sizeof(outbuf) - PTR_DIFF(q, outbuf),
511 True); /* Domain name*/
512 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
513 return;
514 }
515 SIVAL(q, 0, 1); /* our nt version */
516 SSVAL(q, 4, 0xffff); /* our lmnttoken */
517 SSVAL(q, 6, 0xffff); /* our lm20token */
518 q += 8;
519 }
520
521 /* RJS, 21-Feb-2000, we send a short reply if the request was short */
522
523 pull_ascii_fstring(mach_str, machine);
524
525 DEBUG(5,("process_logon_packet: GETDC request from %s at IP %s, \
526 reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
527 mach_str,inet_ntoa(p->ip), reply_name, lp_workgroup(),
528 NETLOGON_RESPONSE_FROM_PDC, (uint32)ntversion, (uint32)lmnttoken,
529 (uint32)lm20token ));
530
531 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
532
533 pull_ascii_fstring(getdc_str, getdc);
534 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
535
536 send_mailslot(True, getdc_str,
537 outbuf,PTR_DIFF(q,outbuf),
538 global_myname(), 0x0,
539 source_name,
540 dgram->source_name.name_type,
541 p->ip, ip, p->port);
542 return;
543 }
544
545 case LOGON_SAM_LOGON_REQUEST:
546
547 {
548 fstring getdc_str;
549 fstring source_name;
550 char *source_addr;
551 char *q = buf + 2;
552 fstring asccomp;
553
554 if (global_nmbd_proxy_logon) {
555 nmbd_proxy_logon(global_nmbd_proxy_logon,
556 ip, p, (uint8_t *)buf, len);
557 return;
558 }
559
560 q += 2;
561
562 if (PTR_DIFF(q, buf) >= len) {
563 DEBUG(0,("process_logon_packet: bad packet\n"));
564 return;
565 }
566
567 unicomp = q;
568 uniuser = skip_unibuf(unicomp, PTR_DIFF(buf+len, unicomp));
569
570 if (PTR_DIFF(uniuser, buf) >= len) {
571 DEBUG(0,("process_logon_packet: bad packet\n"));
572 return;
573 }
574
575 getdc = skip_unibuf(uniuser,PTR_DIFF(buf+len, uniuser));
576
577 if (PTR_DIFF(getdc, buf) >= len) {
578 DEBUG(0,("process_logon_packet: bad packet\n"));
579 return;
580 }
581
582 q = skip_string(buf,len,getdc);
583
584 if (!q || PTR_DIFF(q + 8, buf) >= len) {
585 DEBUG(0,("process_logon_packet: bad packet\n"));
586 return;
587 }
588
589 q += 4; /* Account Control Bits - indicating username type */
590 domainsidsize = IVAL(q, 0);
591 q += 4;
592
593 DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST sidsize %d, len = %d\n", domainsidsize, len));
594
595 if (domainsidsize < (len - PTR_DIFF(q, buf)) && (domainsidsize != 0)) {
596 q += domainsidsize;
597 q = ALIGN4(q, buf);
598 }
599
600 DEBUG(5,("process_logon_packet: len = %d PTR_DIFF(q, buf) = %ld\n", len, (unsigned long)PTR_DIFF(q, buf) ));
601
602 if (len - PTR_DIFF(q, buf) > 8) {
603 /* with NT5 clients we can sometimes
604 get additional data - a length specificed string
605 containing the domain name, then 16 bytes of
606 data (no idea what it is) */
607 int dom_len = CVAL(q, 0);
608 q++;
609 if (dom_len < (len - PTR_DIFF(q, buf)) && (dom_len != 0)) {
610 q += dom_len + 1;
611 }
612 q += 16;
613 }
614
615 if (PTR_DIFF(q + 8, buf) > len) {
616 DEBUG(0,("process_logon_packet: bad packet\n"));
617 return;
618 }
619
620 ntversion = IVAL(q, 0);
621 lmnttoken = SVAL(q, 4);
622 lm20token = SVAL(q, 6);
623 q += 8;
624
625 DEBUG(3,("process_logon_packet: LOGON_SAM_LOGON_REQUEST sidsize %d ntv %d\n", domainsidsize, ntversion));
626
627 /*
628 * we respond regadless of whether the machine is in our password
629 * database. If it isn't then we let smbd send an appropriate error.
630 * Let's ignore the SID.
631 */
632 pull_ucs2_fstring(ascuser, uniuser);
633 pull_ucs2_fstring(asccomp, unicomp);
634 DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST user %s\n", ascuser));
635
636 fstrcpy(reply_name, "\\\\"); /* Here it wants \\LOGONSERVER. */
637 fstrcat(reply_name, my_name);
638
639 DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
640 asccomp,inet_ntoa(p->ip), ascuser, reply_name, lp_workgroup(),
641 LOGON_SAM_LOGON_RESPONSE ,lmnttoken));
642
643 /* Construct reply. */
644
645 q = outbuf;
646 /* we want the simple version unless we are an ADS PDC..which means */
647 /* never, at least for now */
648 if ((ntversion < 11) || (SEC_ADS != lp_security()) || (ROLE_DOMAIN_PDC != lp_server_role())) {
649 if (SVAL(uniuser, 0) == 0) {
650 SSVAL(q, 0, LOGON_SAM_LOGON_USER_UNKNOWN); /* user unknown */
651 } else {
652 SSVAL(q, 0, LOGON_SAM_LOGON_RESPONSE);
653 }
654
655 q += 2;
656
657 q += dos_PutUniCode(q, reply_name,
658 sizeof(outbuf) - PTR_DIFF(q, outbuf),
659 True);
660 q += dos_PutUniCode(q, ascuser,
661 sizeof(outbuf) - PTR_DIFF(q, outbuf),
662 True);
663 q += dos_PutUniCode(q, lp_workgroup(),
664 sizeof(outbuf) - PTR_DIFF(q, outbuf),
665 True);
666 }
667 #ifdef HAVE_ADS
668 else {
669 struct GUID domain_guid;
670 UUID_FLAT flat_guid;
671 char *domain;
672 char *hostname;
673 char *component, *dc, *q1;
674 char *q_orig = q;
675 int str_offset;
676 char *saveptr = NULL;
677
678 domain = get_mydnsdomname(talloc_tos());
679 if (!domain) {
680 DEBUG(2,
681 ("get_mydnsdomname failed.\n"));
682 return;
683 }
684 hostname = get_myname(talloc_tos());
685 if (!hostname) {
686 DEBUG(2,
687 ("get_myname failed.\n"));
688 return;
689 }
690
691 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
692 return;
693 }
694 if (SVAL(uniuser, 0) == 0) {
695 SIVAL(q, 0, LOGON_SAM_LOGON_USER_UNKNOWN_EX); /* user unknown */
696 } else {
697 SIVAL(q, 0, LOGON_SAM_LOGON_RESPONSE_EX);
698 }
699 q += 4;
700
701 SIVAL(q, 0, NBT_SERVER_PDC|NBT_SERVER_GC|NBT_SERVER_LDAP|NBT_SERVER_DS|
702 NBT_SERVER_KDC|NBT_SERVER_TIMESERV|NBT_SERVER_CLOSEST|NBT_SERVER_WRITABLE);
703 q += 4;
704
705 /* Push Domain GUID */
706 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < UUID_FLAT_SIZE) {
707 return;
708 }
709 if (False == secrets_fetch_domain_guid(domain, &domain_guid)) {
710 DEBUG(2, ("Could not fetch DomainGUID for %s\n", domain));
711 return;
712 }
713
714 smb_uuid_pack(domain_guid, &flat_guid);
715 memcpy(q, &flat_guid.info, UUID_FLAT_SIZE);
716 q += UUID_FLAT_SIZE;
717
718 /* Forest */
719 str_offset = q - q_orig;
720 dc = domain;
721 q1 = q;
722 while ((component = strtok_r(dc, ".", &saveptr)) != NULL) {
723 dc = NULL;
724 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 1) {
725 return;
726 }
727 size = push_ascii(&q[1], component,
728 sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
729 0);
730 if (size == (size_t)-1 || size > 0xff) {
731 return;
732 }
733 SCVAL(q, 0, size);
734 q += (size + 1);
735 }
736
737 /* Unk0 */
738 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 4) {
739 return;
740 }
741 SCVAL(q, 0, 0);
742 q++;
743
744 /* Domain */
745 SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
746 SCVAL(q, 1, str_offset & 0xFF);
747 q += 2;
748
749 /* Hostname */
750 size = push_ascii(&q[1], hostname,
751 sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
752 0);
753 if (size == (size_t)-1 || size > 0xff) {
754 return;
755 }
756 SCVAL(q, 0, size);
757 q += (size + 1);
758
759 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 3) {
760 return;
761 }
762
763 SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
764 SCVAL(q, 1, str_offset & 0xFF);
765 q += 2;
766
767 /* NETBIOS of domain */
768 size = push_ascii(&q[1], lp_workgroup(),
769 sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
770 STR_UPPER);
771 if (size == (size_t)-1 || size > 0xff) {
772 return;
773 }
774 SCVAL(q, 0, size);
775 q += (size + 1);
776
777 /* Unk1 */
778 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 2) {
779 return;
780 }
781
782 SCVAL(q, 0, 0);
783 q++;
784
785 /* NETBIOS of hostname */
786 size = push_ascii(&q[1], my_name,
787 sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
788 0);
789 if (size == (size_t)-1 || size > 0xff) {
790 return;
791 }
792 SCVAL(q, 0, size);
793 q += (size + 1);
794
795 /* Unk2 */
796 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 4) {
797 return;
798 }
799
800 SCVAL(q, 0, 0);
801 q++;
802
803 /* User name */
804 if (SVAL(uniuser, 0) != 0) {
805 size = push_ascii(&q[1], ascuser,
806 sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
807 0);
808 if (size == (size_t)-1 || size > 0xff) {
809 return;
810 }
811 SCVAL(q, 0, size);
812 q += (size + 1);
813 }
814
815 q_orig = q;
816 /* Site name */
817 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 1) {
818 return;
819 }
820 size = push_ascii(&q[1], "Default-First-Site-Name",
821 sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
822 0);
823 if (size == (size_t)-1 || size > 0xff) {
824 return;
825 }
826 SCVAL(q, 0, size);
827 q += (size + 1);
828
829 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 18) {
830 return;
831 }
832
833 /* Site name (2) */
834 str_offset = q - q_orig;
835 SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
836 SCVAL(q, 1, str_offset & 0xFF);
837 q += 2;
838
839 SCVAL(q, 0, PTR_DIFF(q,q1));
840 SCVAL(q, 1, 0x10); /* unknown */
841
842 SIVAL(q, 0, 0x00000002);
843 q += 4; /* unknown */
844 SIVAL(q, 0, ntohl(ip.s_addr));
845 q += 4;
846 SIVAL(q, 0, 0x00000000);
847 q += 4; /* unknown */
848 SIVAL(q, 0, 0x00000000);
849 q += 4; /* unknown */
850 }
851 #endif
852
853 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
854 return;
855 }
856
857 /* tell the client what version we are */
858 SIVAL(q, 0, ((ntversion < 11) || (SEC_ADS != lp_security())) ? 1 : 13);
859 /* our ntversion */
860 SSVAL(q, 4, 0xffff); /* our lmnttoken */
861 SSVAL(q, 6, 0xffff); /* our lm20token */
862 q += 8;
863
864 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
865
866 pull_ascii_fstring(getdc_str, getdc);
867 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
868 source_addr = SMB_STRDUP(inet_ntoa(dgram->header.source_ip));
869 if (source_addr == NULL) {
870 DEBUG(3, ("out of memory copying client"
871 " address string\n"));
872 return;
873 }
874
875 /*
876 * handle delay.
877 * packets requeued after delay are marked as
878 * locked.
879 */
880 if ((p->locked == False) &&
881 (strlen(ascuser) == 0) &&
882 delay_logon(source_name, source_addr))
883 {
884 struct timeval when;
885
886 DEBUG(3, ("process_logon_packet: "
887 "delaying initial logon "
888 "reply for client %s(%s) for "
889 "%u milliseconds\n",
890 source_name, source_addr,
891 lp_init_logon_delay()));
892
893 when = timeval_current_ofs(0,
894 lp_init_logon_delay() * 1000);
895 p->locked = true;
896 event_add_timed(nmbd_event_context(),
897 NULL,
898 when,
899 delayed_init_logon_handler,
900 p);
901 } else {
902 DEBUG(3, ("process_logon_packet: "
903 "processing delayed initial "
904 "logon reply for client "
905 "%s(%s)\n",
906 source_name, source_addr));
907
908 p->locked = false;
909 send_mailslot(true, getdc,
910 outbuf,PTR_DIFF(q,outbuf),
911 global_myname(), 0x0,
912 source_name,
913 dgram->source_name.name_type,
914 p->ip, ip, p->port);
915 }
916
917 SAFE_FREE(source_addr);
918
919 break;
920 }
921
922 /* Announce change to UAS or SAM. Send by the domain controller when a
923 replication event is required. */
924
925 case NETLOGON_ANNOUNCE_UAS:
926 DEBUG(5, ("Got NETLOGON_ANNOUNCE_UAS\n"));
927 break;
928
929 default:
930 DEBUG(3,("process_logon_packet: Unknown domain request %d\n",code));
931 return;
932 }
933 }