59a2ca405eab7e736c839db495f4946f64628085
[ira/wip.git] / source3 / nmbd / nmbd_processlogon.c
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
28 struct sam_database_info {
29         uint32 index;
30         uint32 serial_lo, serial_hi;
31         uint32 date_lo, date_hi;
32 };
33
34 /**
35  * check whether the client belongs to the hosts
36  * for which initial logon should be delayed...
37  */
38 static bool delay_logon(const char *peer_name, const char *peer_addr)
39 {
40         const char **delay_list = lp_init_logon_delayed_hosts();
41         const char *peer[2];
42
43         if (delay_list == NULL) {
44                 return False;
45         }
46
47         peer[0] = peer_name;
48         peer[1] = peer_addr;
49
50         return list_match(delay_list, (const char *)peer, client_match);
51 }
52
53 static void delayed_init_logon_handler(struct event_context *event_ctx,
54                                        struct timed_event *te,
55                                        struct timeval now,
56                                        void *private_data)
57 {
58         struct packet_struct *p = (struct packet_struct *)private_data;
59
60         DEBUG(10, ("delayed_init_logon_handler (%lx): re-queuing packet.\n",
61                    (unsigned long)te));
62
63         queue_packet(p);
64
65         TALLOC_FREE(te);
66 }
67
68 /****************************************************************************
69 Process a domain logon packet
70 **************************************************************************/
71
72 void process_logon_packet(struct packet_struct *p, char *buf,int len, 
73                           const char *mailslot)
74 {
75         struct dgram_packet *dgram = &p->packet.dgram;
76         fstring my_name;
77         fstring reply_name;
78         char outbuf[1024];
79         int code;
80         uint16 token = 0;
81         uint32 ntversion = 0;
82         uint16 lmnttoken = 0;
83         uint16 lm20token = 0;
84         uint32 domainsidsize;
85         bool short_request = False;
86         char *getdc;
87         char *uniuser; /* Unicode user name. */
88         fstring ascuser;
89         char *unicomp; /* Unicode computer name. */
90         size_t size;
91         struct sockaddr_storage ss;
92         const struct sockaddr_storage *pss;
93         struct in_addr ip;
94
95         in_addr_to_sockaddr_storage(&ss, p->ip);
96         pss = iface_ip((struct sockaddr *)&ss);
97         if (!pss) {
98                 DEBUG(5,("process_logon_packet:can't find outgoing interface "
99                         "for packet from IP %s\n",
100                         inet_ntoa(p->ip) ));
101                 return;
102         }
103         ip = ((struct sockaddr_in *)pss)->sin_addr;
104
105         memset(outbuf, 0, sizeof(outbuf));
106
107         if (!lp_domain_logons()) {
108                 DEBUG(5,("process_logon_packet: Logon packet received from IP %s and domain \
109 logons are not enabled.\n", inet_ntoa(p->ip) ));
110                 return;
111         }
112
113         fstrcpy(my_name, global_myname());
114
115         code = get_safe_SVAL(buf,len,buf,0,-1);
116         DEBUG(4,("process_logon_packet: Logon from %s: code = 0x%x\n", inet_ntoa(p->ip), code));
117
118         switch (code) {
119                 case 0:
120                         {
121                                 fstring mach_str, user_str, getdc_str;
122                                 char *q = buf + 2;
123                                 char *machine = q;
124                                 char *user = skip_string(buf,len,machine);
125
126                                 if (!user || PTR_DIFF(user, buf) >= len) {
127                                         DEBUG(0,("process_logon_packet: bad packet\n"));
128                                         return;
129                                 }
130                                 getdc = skip_string(buf,len,user);
131
132                                 if (!getdc || PTR_DIFF(getdc, buf) >= len) {
133                                         DEBUG(0,("process_logon_packet: bad packet\n"));
134                                         return;
135                                 }
136                                 q = skip_string(buf,len,getdc);
137
138                                 if (!q || PTR_DIFF(q + 5, buf) > len) {
139                                         DEBUG(0,("process_logon_packet: bad packet\n"));
140                                         return;
141                                 }
142                                 token = SVAL(q,3);
143
144                                 fstrcpy(reply_name,my_name);
145
146                                 pull_ascii_fstring(mach_str, machine);
147                                 pull_ascii_fstring(user_str, user);
148                                 pull_ascii_fstring(getdc_str, getdc);
149
150                                 DEBUG(5,("process_logon_packet: Domain login request from %s at IP %s user=%s token=%x\n",
151                                         mach_str,inet_ntoa(p->ip),user_str,token));
152
153                                 q = outbuf;
154                                 SSVAL(q, 0, 6);
155                                 q += 2;
156
157                                 fstrcpy(reply_name, "\\\\");
158                                 fstrcat(reply_name, my_name);
159                                 size = push_ascii(q,reply_name,
160                                                 sizeof(outbuf)-PTR_DIFF(q, outbuf),
161                                                 STR_TERMINATE);
162                                 if (size == (size_t)-1) {
163                                         return;
164                                 }
165                                 q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
166
167                                 SSVAL(q, 0, token);
168                                 q += 2;
169
170                                 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
171
172                                 send_mailslot(True, getdc_str,
173                                                 outbuf,PTR_DIFF(q,outbuf),
174                                                 global_myname(), 0x0,
175                                                 mach_str,
176                                                 dgram->source_name.name_type,
177                                                 p->ip, ip, p->port);
178                                 break;
179                         }
180
181                 case LOGON_PRIMARY_QUERY:
182                         {
183                                 fstring mach_str, getdc_str;
184                                 fstring source_name;
185                                 char *q = buf + 2;
186                                 char *machine = q;
187
188                                 if (!lp_domain_master()) {
189                                         /* We're not Primary Domain Controller -- ignore this */
190                                         return;
191                                 }
192
193                                 getdc = skip_string(buf,len,machine);
194
195                                 if (!getdc || PTR_DIFF(getdc, buf) >= len) {
196                                         DEBUG(0,("process_logon_packet: bad packet\n"));
197                                         return;
198                                 }
199                                 q = skip_string(buf,len,getdc);
200
201                                 if (!q || PTR_DIFF(q, buf) >= len) {
202                                         DEBUG(0,("process_logon_packet: bad packet\n"));
203                                         return;
204                                 }
205                                 q = ALIGN2(q, buf);
206
207                                 /* At this point we can work out if this is a W9X or NT style
208                                    request. Experiments show that the difference is wether the
209                                    packet ends here. For a W9X request we now end with a pair of
210                                    bytes (usually 0xFE 0xFF) whereas with NT we have two further
211                                    strings - the following is a simple way of detecting this */
212
213                                 if (len - PTR_DIFF(q, buf) <= 3) {
214                                         short_request = True;
215                                 } else {
216                                         unicomp = q;
217
218                                         if (PTR_DIFF(q, buf) >= len) {
219                                                 DEBUG(0,("process_logon_packet: bad packet\n"));
220                                                 return;
221                                         }
222
223                                         /* A full length (NT style) request */
224                                         q = skip_unibuf(unicomp, PTR_DIFF(buf + len, unicomp));
225
226                                         if (PTR_DIFF(q, buf) >= len) {
227                                                 DEBUG(0,("process_logon_packet: bad packet\n"));
228                                                 return;
229                                         }
230
231                                         if (len - PTR_DIFF(q, buf) > 8) {
232                                                 /* with NT5 clients we can sometimes
233                                                         get additional data - a length specificed string
234                                                         containing the domain name, then 16 bytes of
235                                                         data (no idea what it is) */
236                                                 int dom_len = CVAL(q, 0);
237                                                 q++;
238                                                 if (dom_len != 0) {
239                                                         q += dom_len + 1;
240                                                 }
241                                                 q += 16;
242                                         }
243
244                                         if (PTR_DIFF(q + 8, buf) > len) {
245                                                 DEBUG(0,("process_logon_packet: bad packet\n"));
246                                                 return;
247                                         }
248
249                                         ntversion = IVAL(q, 0);
250                                         lmnttoken = SVAL(q, 4);
251                                         lm20token = SVAL(q, 6);
252                                 }
253
254                                 /* Construct reply. */
255                                 q = outbuf;
256                                 SSVAL(q, 0, NETLOGON_RESPONSE_FROM_PDC);
257                                 q += 2;
258
259                                 fstrcpy(reply_name,my_name);
260                                 size = push_ascii(q, reply_name,
261                                                 sizeof(outbuf)-PTR_DIFF(q, outbuf),
262                                                 STR_TERMINATE);
263                                 if (size == (size_t)-1) {
264                                         return;
265                                 }
266                                 q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
267
268                                 /* PDC and domain name */
269                                 if (!short_request) {
270                                         /* Make a full reply */
271                                         q = ALIGN2(q, outbuf);
272
273                                         q += dos_PutUniCode(q, my_name,
274                                                 sizeof(outbuf) - PTR_DIFF(q, outbuf),
275                                                 True); /* PDC name */
276                                         q += dos_PutUniCode(q, lp_workgroup(),
277                                                 sizeof(outbuf) - PTR_DIFF(q, outbuf),
278                                                 True); /* Domain name*/
279                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
280                                                 return;
281                                         }
282                                         SIVAL(q, 0, 1); /* our nt version */
283                                         SSVAL(q, 4, 0xffff); /* our lmnttoken */
284                                         SSVAL(q, 6, 0xffff); /* our lm20token */
285                                         q += 8;
286                                 }
287
288                                 /* RJS, 21-Feb-2000, we send a short reply if the request was short */
289
290                                 pull_ascii_fstring(mach_str, machine);
291
292                                 DEBUG(5,("process_logon_packet: GETDC request from %s at IP %s, \
293 reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
294                                         mach_str,inet_ntoa(p->ip), reply_name, lp_workgroup(),
295                                         NETLOGON_RESPONSE_FROM_PDC, (uint32)ntversion, (uint32)lmnttoken,
296                                         (uint32)lm20token ));
297
298                                 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
299
300                                 pull_ascii_fstring(getdc_str, getdc);
301                                 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
302
303                                 send_mailslot(True, getdc_str,
304                                         outbuf,PTR_DIFF(q,outbuf),
305                                         global_myname(), 0x0,
306                                         source_name,
307                                         dgram->source_name.name_type,
308                                         p->ip, ip, p->port);
309                                 return;
310                         }
311
312                 case LOGON_SAM_LOGON_REQUEST:
313
314                         {
315                                 fstring getdc_str;
316                                 fstring source_name;
317                                 char *source_addr;
318                                 char *q = buf + 2;
319                                 fstring asccomp;
320
321                                 q += 2;
322
323                                 if (PTR_DIFF(q, buf) >= len) {
324                                         DEBUG(0,("process_logon_packet: bad packet\n"));
325                                         return;
326                                 }
327
328                                 unicomp = q;
329                                 uniuser = skip_unibuf(unicomp, PTR_DIFF(buf+len, unicomp));
330
331                                 if (PTR_DIFF(uniuser, buf) >= len) {
332                                         DEBUG(0,("process_logon_packet: bad packet\n"));
333                                         return;
334                                 }
335
336                                 getdc = skip_unibuf(uniuser,PTR_DIFF(buf+len, uniuser));
337
338                                 if (PTR_DIFF(getdc, buf) >= len) {
339                                         DEBUG(0,("process_logon_packet: bad packet\n"));
340                                         return;
341                                 }
342
343                                 q = skip_string(buf,len,getdc);
344
345                                 if (!q || PTR_DIFF(q + 8, buf) >= len) {
346                                         DEBUG(0,("process_logon_packet: bad packet\n"));
347                                         return;
348                                 }
349
350                                 q += 4; /* Account Control Bits - indicating username type */
351                                 domainsidsize = IVAL(q, 0);
352                                 q += 4;
353
354                                 DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST sidsize %d, len = %d\n", domainsidsize, len));
355
356                                 if (domainsidsize < (len - PTR_DIFF(q, buf)) && (domainsidsize != 0)) {
357                                         q += domainsidsize;
358                                         q = ALIGN4(q, buf);
359                                 }
360
361                                 DEBUG(5,("process_logon_packet: len = %d PTR_DIFF(q, buf) = %ld\n", len, (unsigned long)PTR_DIFF(q, buf) ));
362
363                                 if (len - PTR_DIFF(q, buf) > 8) {
364                                         /* with NT5 clients we can sometimes
365                                                 get additional data - a length specificed string
366                                                 containing the domain name, then 16 bytes of
367                                                 data (no idea what it is) */
368                                         int dom_len = CVAL(q, 0);
369                                         q++;
370                                         if (dom_len < (len - PTR_DIFF(q, buf)) && (dom_len != 0)) {
371                                                 q += dom_len + 1;
372                                         }
373                                         q += 16;
374                                 }
375
376                                 if (PTR_DIFF(q + 8, buf) > len) {
377                                         DEBUG(0,("process_logon_packet: bad packet\n"));
378                                         return;
379                                 }
380
381                                 ntversion = IVAL(q, 0);
382                                 lmnttoken = SVAL(q, 4);
383                                 lm20token = SVAL(q, 6);
384                                 q += 8;
385
386                                 DEBUG(3,("process_logon_packet: LOGON_SAM_LOGON_REQUEST sidsize %d ntv %d\n", domainsidsize, ntversion));
387
388                                 /*
389                                  * we respond regadless of whether the machine is in our password 
390                                  * database. If it isn't then we let smbd send an appropriate error.
391                                  * Let's ignore the SID.
392                                  */
393                                 pull_ucs2_fstring(ascuser, uniuser);
394                                 pull_ucs2_fstring(asccomp, unicomp);
395                                 DEBUG(5,("process_logon_packet: LOGON_SAM_LOGON_REQUEST user %s\n", ascuser));
396
397                                 fstrcpy(reply_name, "\\\\"); /* Here it wants \\LOGONSERVER. */
398                                 fstrcat(reply_name, my_name);
399
400                                 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",
401                                         asccomp,inet_ntoa(p->ip), ascuser, reply_name, lp_workgroup(),
402                                 LOGON_SAM_LOGON_RESPONSE ,lmnttoken));
403
404                                 /* Construct reply. */
405
406                                 q = outbuf;
407                                 /* we want the simple version unless we are an ADS PDC..which means  */
408                                 /* never, at least for now */
409                                 if ((ntversion < 11) || (SEC_ADS != lp_security()) || (ROLE_DOMAIN_PDC != lp_server_role())) {
410                                         if (SVAL(uniuser, 0) == 0) {
411                                                 SSVAL(q, 0, LOGON_SAM_LOGON_USER_UNKNOWN);      /* user unknown */
412                                         } else {
413                                                 SSVAL(q, 0, LOGON_SAM_LOGON_RESPONSE);
414                                         }
415
416                                         q += 2;
417
418                                         q += dos_PutUniCode(q, reply_name,
419                                                 sizeof(outbuf) - PTR_DIFF(q, outbuf),
420                                                 True);
421                                         q += dos_PutUniCode(q, ascuser,
422                                                 sizeof(outbuf) - PTR_DIFF(q, outbuf),
423                                                 True);
424                                         q += dos_PutUniCode(q, lp_workgroup(),
425                                                 sizeof(outbuf) - PTR_DIFF(q, outbuf),
426                                                 True);
427                                 }
428 #ifdef HAVE_ADS
429                                 else {
430                                         struct GUID domain_guid;
431                                         UUID_FLAT flat_guid;
432                                         char *domain;
433                                         char *hostname;
434                                         char *component, *dc, *q1;
435                                         char *q_orig = q;
436                                         int str_offset;
437                                         char *saveptr = NULL;
438
439                                         domain = get_mydnsdomname(talloc_tos());
440                                         if (!domain) {
441                                                 DEBUG(2,
442                                                 ("get_mydnsdomname failed.\n"));
443                                                 return;
444                                         }
445                                         hostname = get_myname(talloc_tos());
446                                         if (!hostname) {
447                                                 DEBUG(2,
448                                                 ("get_myname failed.\n"));
449                                                 return;
450                                         }
451
452                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
453                                                 return;
454                                         }
455                                         if (SVAL(uniuser, 0) == 0) {
456                                                 SIVAL(q, 0, LOGON_SAM_LOGON_USER_UNKNOWN_EX);   /* user unknown */
457                                         } else {
458                                                 SIVAL(q, 0, LOGON_SAM_LOGON_RESPONSE_EX);
459                                         }
460                                         q += 4;
461
462                                         SIVAL(q, 0, NBT_SERVER_PDC|NBT_SERVER_GC|NBT_SERVER_LDAP|NBT_SERVER_DS|
463                                                 NBT_SERVER_KDC|NBT_SERVER_TIMESERV|NBT_SERVER_CLOSEST|NBT_SERVER_WRITABLE);
464                                         q += 4;
465
466                                         /* Push Domain GUID */
467                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < UUID_FLAT_SIZE) {
468                                                 return;
469                                         }
470                                         if (False == secrets_fetch_domain_guid(domain, &domain_guid)) {
471                                                 DEBUG(2, ("Could not fetch DomainGUID for %s\n", domain));
472                                                 return;
473                                         }
474
475                                         smb_uuid_pack(domain_guid, &flat_guid);
476                                         memcpy(q, &flat_guid.info, UUID_FLAT_SIZE);
477                                         q += UUID_FLAT_SIZE;
478
479                                         /* Forest */
480                                         str_offset = q - q_orig;
481                                         dc = domain;
482                                         q1 = q;
483                                         while ((component = strtok_r(dc, ".", &saveptr)) != NULL) {
484                                                 dc = NULL;
485                                                 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 1) {
486                                                         return;
487                                                 }
488                                                 size = push_ascii(&q[1], component,
489                                                         sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
490                                                         0);
491                                                 if (size == (size_t)-1 || size > 0xff) {
492                                                         return;
493                                                 }
494                                                 SCVAL(q, 0, size);
495                                                 q += (size + 1);
496                                         }
497
498                                         /* Unk0 */
499                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 4) {
500                                                 return;
501                                         }
502                                         SCVAL(q, 0, 0);
503                                         q++;
504
505                                         /* Domain */
506                                         SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
507                                         SCVAL(q, 1, str_offset & 0xFF);
508                                         q += 2;
509
510                                         /* Hostname */
511                                         size = push_ascii(&q[1], hostname,
512                                                         sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
513                                                         0);
514                                         if (size == (size_t)-1 || size > 0xff) {
515                                                 return;
516                                         }
517                                         SCVAL(q, 0, size);
518                                         q += (size + 1);
519
520                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 3) {
521                                                 return;
522                                         }
523
524                                         SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
525                                         SCVAL(q, 1, str_offset & 0xFF);
526                                         q += 2;
527
528                                         /* NETBIOS of domain */
529                                         size = push_ascii(&q[1], lp_workgroup(),
530                                                         sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
531                                                         STR_UPPER);
532                                         if (size == (size_t)-1 || size > 0xff) {
533                                                 return;
534                                         }
535                                         SCVAL(q, 0, size);
536                                         q += (size + 1);
537
538                                         /* Unk1 */
539                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 2) {
540                                                 return;
541                                         }
542
543                                         SCVAL(q, 0, 0);
544                                         q++;
545
546                                         /* NETBIOS of hostname */
547                                         size = push_ascii(&q[1], my_name,
548                                                         sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
549                                                         0);
550                                         if (size == (size_t)-1 || size > 0xff) {
551                                                 return;
552                                         }
553                                         SCVAL(q, 0, size);
554                                         q += (size + 1);
555
556                                         /* Unk2 */
557                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 4) {
558                                                 return;
559                                         }
560
561                                         SCVAL(q, 0, 0);
562                                         q++;
563
564                                         /* User name */
565                                         if (SVAL(uniuser, 0) != 0) {
566                                                 size = push_ascii(&q[1], ascuser,
567                                                         sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
568                                                         0);
569                                                 if (size == (size_t)-1 || size > 0xff) {
570                                                         return;
571                                                 }
572                                                 SCVAL(q, 0, size);
573                                                 q += (size + 1);
574                                         }
575
576                                         q_orig = q;
577                                         /* Site name */
578                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 1) {
579                                                 return;
580                                         }
581                                         size = push_ascii(&q[1], "Default-First-Site-Name",
582                                                         sizeof(outbuf) - PTR_DIFF(q+1, outbuf),
583                                                         0);
584                                         if (size == (size_t)-1 || size > 0xff) {
585                                                 return;
586                                         }
587                                         SCVAL(q, 0, size);
588                                         q += (size + 1);
589
590                                         if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 18) {
591                                                 return;
592                                         }
593
594                                         /* Site name (2) */
595                                         str_offset = q - q_orig;
596                                         SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
597                                         SCVAL(q, 1, str_offset & 0xFF);
598                                         q += 2;
599
600                                         SCVAL(q, 0, PTR_DIFF(q,q1));
601                                         SCVAL(q, 1, 0x10); /* unknown */
602
603                                         SIVAL(q, 0, 0x00000002);
604                                         q += 4; /* unknown */
605                                         SIVAL(q, 0, ntohl(ip.s_addr));
606                                         q += 4;
607                                         SIVAL(q, 0, 0x00000000);
608                                         q += 4; /* unknown */
609                                         SIVAL(q, 0, 0x00000000);
610                                         q += 4; /* unknown */
611                                 }
612 #endif
613
614                                 if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
615                                         return;
616                                 }
617
618                                 /* tell the client what version we are */
619                                 SIVAL(q, 0, ((ntversion < 11) || (SEC_ADS != lp_security())) ? 1 : 13); 
620                                 /* our ntversion */
621                                 SSVAL(q, 4, 0xffff); /* our lmnttoken */
622                                 SSVAL(q, 6, 0xffff); /* our lm20token */
623                                 q += 8;
624
625                                 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
626
627                                 pull_ascii_fstring(getdc_str, getdc);
628                                 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
629                                 source_addr = SMB_STRDUP(inet_ntoa(dgram->header.source_ip));
630                                 if (source_addr == NULL) {
631                                         DEBUG(3, ("out of memory copying client"
632                                                   " address string\n"));
633                                         return;
634                                 }
635
636                                 /*
637                                  * handle delay.
638                                  * packets requeued after delay are marked as
639                                  * locked.
640                                  */
641                                 if ((p->locked == False) &&
642                                     (strlen(ascuser) == 0) &&
643                                     delay_logon(source_name, source_addr))
644                                 {
645                                         struct timeval when;
646
647                                         DEBUG(3, ("process_logon_packet: "
648                                                   "delaying initial logon "
649                                                   "reply for client %s(%s) for "
650                                                   "%u milliseconds\n",
651                                                   source_name, source_addr,
652                                                   lp_init_logon_delay()));
653
654                                         when = timeval_current_ofs(0,
655                                                 lp_init_logon_delay() * 1000);
656                                         p->locked = true;
657                                         event_add_timed(nmbd_event_context(),
658                                                         NULL,
659                                                         when,
660                                                         delayed_init_logon_handler,
661                                                         p);
662                                 } else {
663                                         DEBUG(3, ("process_logon_packet: "
664                                                   "processing delayed initial "
665                                                   "logon reply for client "
666                                                   "%s(%s)\n",
667                                                   source_name, source_addr));
668
669                                         p->locked = false;
670                                         send_mailslot(true, getdc,
671                                                 outbuf,PTR_DIFF(q,outbuf),
672                                                 global_myname(), 0x0,
673                                                 source_name,
674                                                 dgram->source_name.name_type,
675                                                 p->ip, ip, p->port);
676                                 }
677
678                                 SAFE_FREE(source_addr);
679
680                                 break;
681                         }
682
683                 /* Announce change to UAS or SAM.  Send by the domain controller when a
684                 replication event is required. */
685
686                 case NETLOGON_ANNOUNCE_UAS:
687                         DEBUG(5, ("Got NETLOGON_ANNOUNCE_UAS\n"));
688                         break;
689
690                 default:
691                         DEBUG(3,("process_logon_packet: Unknown domain request %d\n",code));
692                         return;
693         }
694 }