ReactOS  0.4.15-dev-2985-g54406bf
dhclient.c
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1 /* $OpenBSD: dhclient.c,v 1.62 2004/12/05 18:35:51 deraadt Exp $ */
2 
3 /*
4  * Copyright 2004 Henning Brauer <henning@openbsd.org>
5  * Copyright (c) 1995, 1996, 1997, 1998, 1999
6  * The Internet Software Consortium. All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  * notice, this list of conditions and the following disclaimer in the
16  * documentation and/or other materials provided with the distribution.
17  * 3. Neither the name of The Internet Software Consortium nor the names
18  * of its contributors may be used to endorse or promote products derived
19  * from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
22  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
23  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25  * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
26  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
29  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
30  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
32  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  * This software has been written for the Internet Software Consortium
36  * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
37  * Enterprises. To learn more about the Internet Software Consortium,
38  * see ``http://www.vix.com/isc''. To learn more about Vixie
39  * Enterprises, see ``http://www.vix.com''.
40  *
41  * This client was substantially modified and enhanced by Elliot Poger
42  * for use on Linux while he was working on the MosquitoNet project at
43  * Stanford.
44  *
45  * The current version owes much to Elliot's Linux enhancements, but
46  * was substantially reorganized and partially rewritten by Ted Lemon
47  * so as to use the same networking framework that the Internet Software
48  * Consortium DHCP server uses. Much system-specific configuration code
49  * was moved into a shell script so that as support for more operating
50  * systems is added, it will not be necessary to port and maintain
51  * system-specific configuration code to these operating systems - instead,
52  * the shell script can invoke the native tools to accomplish the same
53  * purpose.
54  */
55 
56 #include <rosdhcp.h>
57 
58 #define PERIOD 0x2e
59 #define hyphenchar(c) ((c) == 0x2d)
60 #define bslashchar(c) ((c) == 0x5c)
61 #define periodchar(c) ((c) == PERIOD)
62 #define asterchar(c) ((c) == 0x2a)
63 #define alphachar(c) (((c) >= 0x41 && (c) <= 0x5a) || \
64  ((c) >= 0x61 && (c) <= 0x7a))
65 #define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
66 
67 #define borderchar(c) (alphachar(c) || digitchar(c))
68 #define middlechar(c) (borderchar(c) || hyphenchar(c))
69 #define domainchar(c) ((c) > 0x20 && (c) < 0x7f)
70 
71 unsigned long debug_trace_level = 0; /* DEBUG_ULTRA */
72 
75 
76 int log_perror = 1;
77 int privfd;
78 //int nullfd = -1;
79 
80 struct iaddr iaddr_broadcast = { 4, { 255, 255, 255, 255 } };
83 
84 /*
85  * ASSERT_STATE() does nothing now; it used to be
86  * assert (state_is == state_shouldbe).
87  */
88 #define ASSERT_STATE(state_is, state_shouldbe) {}
89 
90 #define TIME_MAX 2147483647
91 
94 int unknown_ok = 1;
95 int routefd;
96 
97 void usage(void);
98 int check_option(struct client_lease *l, int option);
99 int ipv4addrs(char * buf);
100 int res_hnok(const char *dn);
101 char *option_as_string(unsigned int code, unsigned char *data, int len);
102 int fork_privchld(int, int);
103 int check_arp( struct interface_info *ip, struct client_lease *lp );
104 
105 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
106 
108 
109 
110 int
112 {
113  ApiInit();
114  AdapterInit();
115 
116  tzset();
117 
119  sockaddr_broadcast.sin_family = AF_INET;
121  sockaddr_broadcast.sin_addr.s_addr = INADDR_BROADCAST;
122  inaddr_any.s_addr = INADDR_ANY;
124 
126  {
127  DbgPrint("DHCPCSVC: PipeInit() failed!\n");
128  AdapterStop();
129  ApiFree();
130  return 0; // FALSE
131  }
132 
133  return 1; // TRUE
134 }
135 
136 void
138 {
139  // AdapterStop();
140  // ApiFree();
141  /* FIXME: Close pipe and kill pipe thread */
142 }
143 
144 /* XXX Implement me */
145 int check_arp( struct interface_info *ip, struct client_lease *lp ) {
146  return 1;
147 }
148 
149 /*
150  * Individual States:
151  *
152  * Each routine is called from the dhclient_state_machine() in one of
153  * these conditions:
154  * -> entering INIT state
155  * -> recvpacket_flag == 0: timeout in this state
156  * -> otherwise: received a packet in this state
157  *
158  * Return conditions as handled by dhclient_state_machine():
159  * Returns 1, sendpacket_flag = 1: send packet, reset timer.
160  * Returns 1, sendpacket_flag = 0: just reset the timer (wait for a milestone).
161  * Returns 0: finish the nap which was interrupted for no good reason.
162  *
163  * Several per-interface variables are used to keep track of the process:
164  * active_lease: the lease that is being used on the interface
165  * (null pointer if not configured yet).
166  * offered_leases: leases corresponding to DHCPOFFER messages that have
167  * been sent to us by DHCP servers.
168  * acked_leases: leases corresponding to DHCPACK messages that have been
169  * sent to us by DHCP servers.
170  * sendpacket: DHCP packet we're trying to send.
171  * destination: IP address to send sendpacket to
172  * In addition, there are several relevant per-lease variables.
173  * T1_expiry, T2_expiry, lease_expiry: lease milestones
174  * In the active lease, these control the process of renewing the lease;
175  * In leases on the acked_leases list, this simply determines when we
176  * can no longer legitimately use the lease.
177  */
178 
179 void
180 state_reboot(void *ipp)
181 {
182  struct interface_info *ip = ipp;
183  ULONG foo = (ULONG) GetTickCount();
184 
185  /* If we don't remember an active lease, go straight to INIT. */
186  if (!ip->client->active || ip->client->active->is_bootp) {
187  state_init(ip);
188  return;
189  }
190 
191  /* We are in the rebooting state. */
192  ip->client->state = S_REBOOTING;
193 
194  /* make_request doesn't initialize xid because it normally comes
195  from the DHCPDISCOVER, but we haven't sent a DHCPDISCOVER,
196  so pick an xid now. */
197  ip->client->xid = RtlRandom(&foo);
198 
199  /* Make a DHCPREQUEST packet, and set appropriate per-interface
200  flags. */
201  make_request(ip, ip->client->active);
202  ip->client->destination = iaddr_broadcast;
203  time(&ip->client->first_sending);
204  ip->client->interval = ip->client->config->initial_interval;
205 
206  /* Zap the medium list... */
207  ip->client->medium = NULL;
208 
209  /* Send out the first DHCPREQUEST packet. */
210  send_request(ip);
211 }
212 
213 /*
214  * Called when a lease has completely expired and we've
215  * been unable to renew it.
216  */
217 void
218 state_init(void *ipp)
219 {
220  struct interface_info *ip = ipp;
221 
223 
224  /* Make a DHCPDISCOVER packet, and set appropriate per-interface
225  flags. */
226  make_discover(ip, ip->client->active);
227  ip->client->xid = ip->client->packet.xid;
228  ip->client->destination = iaddr_broadcast;
229  ip->client->state = S_SELECTING;
230  time(&ip->client->first_sending);
231  ip->client->interval = ip->client->config->initial_interval;
232 
233  /* Add an immediate timeout to cause the first DHCPDISCOVER packet
234  to go out. */
235  send_discover(ip);
236 }
237 
238 /*
239  * state_selecting is called when one or more DHCPOFFER packets
240  * have been received and a configurable period of time has passed.
241  */
242 void
243 state_selecting(void *ipp)
244 {
245  struct interface_info *ip = ipp;
246  struct client_lease *lp, *next, *picked;
248 
250 
251  time(&cur_time);
252 
253  /* Cancel state_selecting and send_discover timeouts, since either
254  one could have got us here. */
257 
258  /* We have received one or more DHCPOFFER packets. Currently,
259  the only criterion by which we judge leases is whether or
260  not we get a response when we arp for them. */
261  picked = NULL;
262  for (lp = ip->client->offered_leases; lp; lp = next) {
263  next = lp->next;
264 
265  /* Check to see if we got an ARPREPLY for the address
266  in this particular lease. */
267  if (!picked) {
268  if( !check_arp(ip,lp) ) goto freeit;
269  picked = lp;
270  picked->next = NULL;
271  } else {
272 freeit:
273  free_client_lease(lp);
274  }
275  }
276  ip->client->offered_leases = NULL;
277 
278  /* If we just tossed all the leases we were offered, go back
279  to square one. */
280  if (!picked) {
281  ip->client->state = S_INIT;
282  state_init(ip);
283  return;
284  }
285 
286  /* If it was a BOOTREPLY, we can just take the address right now. */
287  if (!picked->options[DHO_DHCP_MESSAGE_TYPE].len) {
288  ip->client->new = picked;
289 
290  /* Make up some lease expiry times
291  XXX these should be configurable. */
292  ip->client->new->expiry = cur_time + 12000;
293  ip->client->new->renewal += cur_time + 8000;
294  ip->client->new->rebind += cur_time + 10000;
295 
296  ip->client->state = S_REQUESTING;
297 
298  /* Bind to the address we received. */
299  bind_lease(ip);
300  return;
301  }
302 
303  /* Go to the REQUESTING state. */
304  ip->client->destination = iaddr_broadcast;
305  ip->client->state = S_REQUESTING;
306  ip->client->first_sending = cur_time;
307  ip->client->interval = ip->client->config->initial_interval;
308 
309  /* Make a DHCPREQUEST packet from the lease we picked. */
310  make_request(ip, picked);
311  ip->client->xid = ip->client->packet.xid;
312 
313  /* Toss the lease we picked - we'll get it back in a DHCPACK. */
314  free_client_lease(picked);
315 
316  /* Add an immediate timeout to send the first DHCPREQUEST packet. */
317  send_request(ip);
318 }
319 
320 /* state_requesting is called when we receive a DHCPACK message after
321  having sent out one or more DHCPREQUEST packets. */
322 
323 void
325 {
326  struct interface_info *ip = packet->interface;
327  struct client_lease *lease;
329 
330  time(&cur_time);
331 
332  /* If we're not receptive to an offer right now, or if the offer
333  has an unrecognizable transaction id, then just drop it. */
334  if (packet->interface->client->xid != packet->raw->xid ||
335  (packet->interface->hw_address.hlen != packet->raw->hlen) ||
336  (memcmp(packet->interface->hw_address.haddr,
337  packet->raw->chaddr, packet->raw->hlen)))
338  return;
339 
340  if (ip->client->state != S_REBOOTING &&
341  ip->client->state != S_REQUESTING &&
342  ip->client->state != S_RENEWING &&
343  ip->client->state != S_REBINDING)
344  return;
345 
346  note("DHCPACK from %s", piaddr(packet->client_addr));
347 
348  lease = packet_to_lease(packet);
349  if (!lease) {
350  note("packet_to_lease failed.");
351  return;
352  }
353 
354  ip->client->new = lease;
355 
356  /* Stop resending DHCPREQUEST. */
358 
359  /* Figure out the lease time. */
360  if (ip->client->new->options[DHO_DHCP_LEASE_TIME].data)
361  ip->client->new->expiry = getULong(
362  ip->client->new->options[DHO_DHCP_LEASE_TIME].data);
363  else
364  ip->client->new->expiry = DHCP_DEFAULT_LEASE_TIME;
365  /* A number that looks negative here is really just very large,
366  because the lease expiry offset is unsigned. */
367  if (ip->client->new->expiry < 0)
368  ip->client->new->expiry = TIME_MAX;
369  /* XXX should be fixed by resetting the client state */
370  if (ip->client->new->expiry < 60)
371  ip->client->new->expiry = 60;
372 
373  /* Take the server-provided renewal time if there is one;
374  otherwise figure it out according to the spec. */
375  if (ip->client->new->options[DHO_DHCP_RENEWAL_TIME].len)
376  ip->client->new->renewal = getULong(
377  ip->client->new->options[DHO_DHCP_RENEWAL_TIME].data);
378  else
379  ip->client->new->renewal = ip->client->new->expiry / 2;
380 
381  /* Same deal with the rebind time. */
382  if (ip->client->new->options[DHO_DHCP_REBINDING_TIME].len)
383  ip->client->new->rebind = getULong(
384  ip->client->new->options[DHO_DHCP_REBINDING_TIME].data);
385  else
386  ip->client->new->rebind = ip->client->new->renewal +
387  ip->client->new->renewal / 2 + ip->client->new->renewal / 4;
388 
389 #ifdef __REACTOS__
390  ip->client->new->obtained = cur_time;
391 #endif
392  ip->client->new->expiry += cur_time;
393  /* Lease lengths can never be negative. */
394  if (ip->client->new->expiry < cur_time)
395  ip->client->new->expiry = TIME_MAX;
396  ip->client->new->renewal += cur_time;
397  if (ip->client->new->renewal < cur_time)
398  ip->client->new->renewal = TIME_MAX;
399  ip->client->new->rebind += cur_time;
400  if (ip->client->new->rebind < cur_time)
401  ip->client->new->rebind = TIME_MAX;
402 
403  bind_lease(ip);
404 }
405 
406 void set_name_servers( PDHCP_ADAPTER Adapter, struct client_lease *new_lease ) {
407  CHAR Buffer[200] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
408  HKEY RegKey;
409 
410  strcat(Buffer, Adapter->DhclientInfo.name);
412  return;
413 
414 
415  if( new_lease->options[DHO_DOMAIN_NAME_SERVERS].len ) {
416 
417  struct iaddr nameserver;
418  char *nsbuf;
419  int i, addrs =
420  new_lease->options[DHO_DOMAIN_NAME_SERVERS].len / sizeof(ULONG);
421 
422  nsbuf = malloc( addrs * sizeof(IP_ADDRESS_STRING) );
423 
424  if( nsbuf) {
425  nsbuf[0] = 0;
426  for( i = 0; i < addrs; i++ ) {
427  nameserver.len = sizeof(ULONG);
428  memcpy( nameserver.iabuf,
429  new_lease->options[DHO_DOMAIN_NAME_SERVERS].data +
430  (i * sizeof(ULONG)), sizeof(ULONG) );
431  strcat( nsbuf, piaddr(nameserver) );
432  if( i != addrs-1 ) strcat( nsbuf, "," );
433  }
434 
435  DH_DbgPrint(MID_TRACE,("Setting DhcpNameserver: %s\n", nsbuf));
436 
437  RegSetValueExA( RegKey, "DhcpNameServer", 0, REG_SZ,
438  (LPBYTE)nsbuf, strlen(nsbuf) + 1 );
439  free( nsbuf );
440  }
441 
442  } else {
443  RegDeleteValueW( RegKey, L"DhcpNameServer" );
444  }
445 
446  RegCloseKey( RegKey );
447 
448 }
449 
450 void
452  struct client_lease *new_lease)
453 {
454  CHAR Buffer1[MAX_PATH] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
455  CHAR Buffer2[MAX_PATH] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters";
456  HKEY RegKey1, RegKey2;
457 
458  strcat(Buffer1, Adapter->DhclientInfo.name);
459 
460  if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, Buffer1, 0, KEY_WRITE, &RegKey1 ) != ERROR_SUCCESS)
461  {
462  return;
463  }
464 
465  if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, Buffer2, 0, KEY_WRITE, &RegKey2 ) != ERROR_SUCCESS)
466  {
467  RegCloseKey(RegKey1);
468  return;
469  }
470 
471  if (new_lease->options[DHO_DOMAIN_NAME].len)
472  {
473  DH_DbgPrint(MID_TRACE, ("Setting DhcpDomain: %s\n", new_lease->options[DHO_DOMAIN_NAME].data));
474 
475  RegSetValueExA(RegKey1,
476  "DhcpDomain",
477  0,
478  REG_SZ,
479  (LPBYTE)new_lease->options[DHO_DOMAIN_NAME].data,
480  new_lease->options[DHO_DOMAIN_NAME].len);
481 
482  RegSetValueExA(RegKey2,
483  "DhcpDomain",
484  0,
485  REG_SZ,
486  (LPBYTE)new_lease->options[DHO_DOMAIN_NAME].data,
487  new_lease->options[DHO_DOMAIN_NAME].len);
488  }
489  else
490  {
491  RegDeleteValueW(RegKey1, L"DhcpDomain");
492  RegDeleteValueW(RegKey2, L"DhcpDomain");
493  }
494 
495  RegCloseKey(RegKey1);
496  RegCloseKey(RegKey2);
497 
498 }
499 
500 void setup_adapter( PDHCP_ADAPTER Adapter, struct client_lease *new_lease ) {
501  CHAR Buffer[200] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
502  struct iaddr netmask;
503  HKEY hkey;
504  int i;
505  DWORD dwEnableDHCP;
506 
507  strcat(Buffer, Adapter->DhclientInfo.name);
509  hkey = NULL;
510 
511 
512  if( Adapter->NteContext )
513  {
514  DeleteIPAddress( Adapter->NteContext );
515  Adapter->NteContext = 0;
516  }
517 
518  /* Set up our default router if we got one from the DHCP server */
519  if( new_lease->options[DHO_SUBNET_MASK].len ) {
521 
522  memcpy( netmask.iabuf,
523  new_lease->options[DHO_SUBNET_MASK].data,
524  new_lease->options[DHO_SUBNET_MASK].len );
526  ( *((ULONG*)new_lease->address.iabuf),
527  *((ULONG*)netmask.iabuf),
528  Adapter->IfMib.dwIndex,
529  &Adapter->NteContext,
530  &Adapter->NteInstance );
531  if (hkey) {
532  RegSetValueExA(hkey, "DhcpIPAddress", 0, REG_SZ, (LPBYTE)piaddr(new_lease->address), strlen(piaddr(new_lease->address))+1);
533  Buffer[0] = '\0';
534  for(i = 0; i < new_lease->options[DHO_SUBNET_MASK].len; i++)
535  {
536  sprintf(&Buffer[strlen(Buffer)], "%u", new_lease->options[DHO_SUBNET_MASK].data[i]);
537  if (i + 1 < new_lease->options[DHO_SUBNET_MASK].len)
538  strcat(Buffer, ".");
539  }
540  RegSetValueExA(hkey, "DhcpSubnetMask", 0, REG_SZ, (LPBYTE)Buffer, strlen(Buffer)+1);
541  dwEnableDHCP = 1;
542  RegSetValueExA(hkey, "EnableDHCP", 0, REG_DWORD, (LPBYTE)&dwEnableDHCP, sizeof(DWORD));
543  }
544 
545  if( !NT_SUCCESS(Status) )
546  warning("AddIPAddress: %lx\n", Status);
547  }
548 
549  if( new_lease->options[DHO_ROUTERS].len ) {
551 
552  Adapter->RouterMib.dwForwardDest = 0; /* Default route */
553  Adapter->RouterMib.dwForwardMask = 0;
554  Adapter->RouterMib.dwForwardMetric1 = 1;
555  Adapter->RouterMib.dwForwardIfIndex = Adapter->IfMib.dwIndex;
556 
557  if( Adapter->RouterMib.dwForwardNextHop ) {
558  /* If we set a default route before, delete it before continuing */
559  DeleteIpForwardEntry( &Adapter->RouterMib );
560  }
561 
562  Adapter->RouterMib.dwForwardNextHop =
563  *((ULONG*)new_lease->options[DHO_ROUTERS].data);
564 
565  Status = CreateIpForwardEntry( &Adapter->RouterMib );
566 
567  if( !NT_SUCCESS(Status) )
568  warning("CreateIpForwardEntry: %lx\n", Status);
569 
570  if (hkey) {
571  Buffer[0] = '\0';
572  for(i = 0; i < new_lease->options[DHO_ROUTERS].len; i++)
573  {
574  sprintf(&Buffer[strlen(Buffer)], "%u", new_lease->options[DHO_ROUTERS].data[i]);
575  if (i + 1 < new_lease->options[DHO_ROUTERS].len)
576  strcat(Buffer, ".");
577  }
578  RegSetValueExA(hkey, "DhcpDefaultGateway", 0, REG_SZ, (LPBYTE)Buffer, strlen(Buffer)+1);
579  }
580  }
581 
582  if (hkey)
583  RegCloseKey(hkey);
584 }
585 
586 
587 void
589 {
590  PDHCP_ADAPTER Adapter;
591  struct client_lease *new_lease = ip->client->new;
593 
594  time(&cur_time);
595 
596  /* Remember the medium. */
597  ip->client->new->medium = ip->client->medium;
598 
599  /* Replace the old active lease with the new one. */
600  if (ip->client->active)
601  free_client_lease(ip->client->active);
602  ip->client->active = ip->client->new;
603  ip->client->new = NULL;
604 
605  /* Set up a timeout to start the renewal process. */
606  /* Timeout of zero means no timeout (some implementations seem to use
607  * one day).
608  */
609  if( ip->client->active->renewal - cur_time )
610  add_timeout(ip->client->active->renewal, state_bound, ip);
611 
612  note("bound to %s -- renewal in %ld seconds.",
613  piaddr(ip->client->active->address),
614  (long int)(ip->client->active->renewal - cur_time));
615 
616  ip->client->state = S_BOUND;
617 
618  Adapter = AdapterFindInfo( ip );
619 
620  if( Adapter ) setup_adapter( Adapter, new_lease );
621  else {
622  warning("Could not find adapter for info %p\n", ip);
623  return;
624  }
625  set_name_servers( Adapter, new_lease );
626  set_domain( Adapter, new_lease );
627 }
628 
629 /*
630  * state_bound is called when we've successfully bound to a particular
631  * lease, but the renewal time on that lease has expired. We are
632  * expected to unicast a DHCPREQUEST to the server that gave us our
633  * original lease.
634  */
635 void
636 state_bound(void *ipp)
637 {
638  struct interface_info *ip = ipp;
639 
641 
642  /* T1 has expired. */
643  make_request(ip, ip->client->active);
644  ip->client->xid = ip->client->packet.xid;
645 
646  if (ip->client->active->options[DHO_DHCP_SERVER_IDENTIFIER].len == 4) {
647  memcpy(ip->client->destination.iabuf, ip->client->active->
649  ip->client->destination.len = 4;
650  } else
651  ip->client->destination = iaddr_broadcast;
652 
653  time(&ip->client->first_sending);
654  ip->client->interval = ip->client->config->initial_interval;
655  ip->client->state = S_RENEWING;
656 
657  /* Send the first packet immediately. */
658  send_request(ip);
659 }
660 
661 void
663 {
664  struct iaddrlist *ap;
665 
666  if (packet->raw->op != BOOTREPLY)
667  return;
668 
669  /* If there's a reject list, make sure this packet's sender isn't
670  on it. */
671  for (ap = packet->interface->client->config->reject_list;
672  ap; ap = ap->next) {
673  if (addr_eq(packet->client_addr, ap->addr)) {
674  note("BOOTREPLY from %s rejected.", piaddr(ap->addr));
675  return;
676  }
677  }
678  dhcpoffer(packet);
679 }
680 
681 void
683 {
684  struct iaddrlist *ap;
685  void (*handler)(struct packet *);
686  char *type;
687 
688  switch (packet->packet_type) {
689  case DHCPOFFER:
690  handler = dhcpoffer;
691  type = "DHCPOFFER";
692  break;
693  case DHCPNAK:
694  handler = dhcpnak;
695  type = "DHCPNACK";
696  break;
697  case DHCPACK:
698  handler = dhcpack;
699  type = "DHCPACK";
700  break;
701  default:
702  return;
703  }
704 
705  /* If there's a reject list, make sure this packet's sender isn't
706  on it. */
707  for (ap = packet->interface->client->config->reject_list;
708  ap; ap = ap->next) {
709  if (addr_eq(packet->client_addr, ap->addr)) {
710  note("%s from %s rejected.", type, piaddr(ap->addr));
711  return;
712  }
713  }
714  (*handler)(packet);
715 }
716 
717 void
719 {
720  struct interface_info *ip = packet->interface;
721  struct client_lease *lease, *lp;
722  int i;
723  int arp_timeout_needed = 0, stop_selecting;
724  char *name = packet->options[DHO_DHCP_MESSAGE_TYPE].len ?
725  "DHCPOFFER" : "BOOTREPLY";
727 
728  time(&cur_time);
729 
730  /* If we're not receptive to an offer right now, or if the offer
731  has an unrecognizable transaction id, then just drop it. */
732  if (ip->client->state != S_SELECTING ||
733  packet->interface->client->xid != packet->raw->xid ||
734  (packet->interface->hw_address.hlen != packet->raw->hlen) ||
735  (memcmp(packet->interface->hw_address.haddr,
736  packet->raw->chaddr, packet->raw->hlen)))
737  return;
738 
739  note("%s from %s", name, piaddr(packet->client_addr));
740 
741 
742  /* If this lease doesn't supply the minimum required parameters,
743  blow it off. */
744  for (i = 0; ip->client->config->required_options[i]; i++) {
745  if (!packet->options[ip->client->config->
746  required_options[i]].len) {
747  note("%s isn't satisfactory.", name);
748  return;
749  }
750  }
751 
752  /* If we've already seen this lease, don't record it again. */
753  for (lease = ip->client->offered_leases;
754  lease; lease = lease->next) {
755  if (lease->address.len == sizeof(packet->raw->yiaddr) &&
756  !memcmp(lease->address.iabuf,
757  &packet->raw->yiaddr, lease->address.len)) {
758  debug("%s already seen.", name);
759  return;
760  }
761  }
762 
763  lease = packet_to_lease(packet);
764  if (!lease) {
765  note("packet_to_lease failed.");
766  return;
767  }
768 
769  /* If this lease was acquired through a BOOTREPLY, record that
770  fact. */
772  lease->is_bootp = 1;
773 
774  /* Record the medium under which this lease was offered. */
775  lease->medium = ip->client->medium;
776 
777  /* Send out an ARP Request for the offered IP address. */
778  if( !check_arp( ip, lease ) ) {
779  note("Arp check failed\n");
780  return;
781  }
782 
783  /* Figure out when we're supposed to stop selecting. */
784  stop_selecting =
785  ip->client->first_sending + ip->client->config->select_interval;
786 
787  /* If this is the lease we asked for, put it at the head of the
788  list, and don't mess with the arp request timeout. */
789  if (lease->address.len == ip->client->requested_address.len &&
790  !memcmp(lease->address.iabuf,
791  ip->client->requested_address.iabuf,
792  ip->client->requested_address.len)) {
793  lease->next = ip->client->offered_leases;
794  ip->client->offered_leases = lease;
795  } else {
796  /* If we already have an offer, and arping for this
797  offer would take us past the selection timeout,
798  then don't extend the timeout - just hope for the
799  best. */
800  if (ip->client->offered_leases &&
801  (cur_time + arp_timeout_needed) > stop_selecting)
802  arp_timeout_needed = 0;
803 
804  /* Put the lease at the end of the list. */
805  lease->next = NULL;
806  if (!ip->client->offered_leases)
807  ip->client->offered_leases = lease;
808  else {
809  for (lp = ip->client->offered_leases; lp->next;
810  lp = lp->next)
811  ; /* nothing */
812  lp->next = lease;
813  }
814  }
815 
816  /* If we're supposed to stop selecting before we've had time
817  to wait for the ARPREPLY, add some delay to wait for
818  the ARPREPLY. */
819  if (stop_selecting - cur_time < arp_timeout_needed)
820  stop_selecting = cur_time + arp_timeout_needed;
821 
822  /* If the selecting interval has expired, go immediately to
823  state_selecting(). Otherwise, time out into
824  state_selecting at the select interval. */
825  if (stop_selecting <= 0)
827  else {
828  add_timeout(stop_selecting, state_selecting, ip);
830  }
831 }
832 
833 /* Allocate a client_lease structure and initialize it from the parameters
834  in the specified packet. */
835 
836 struct client_lease *
838 {
839  struct client_lease *lease;
840  int i;
841 
842  lease = malloc(sizeof(struct client_lease));
843 
844  if (!lease) {
845  warning("dhcpoffer: no memory to record lease.");
846  return (NULL);
847  }
848 
849  memset(lease, 0, sizeof(*lease));
850 
851  /* Copy the lease options. */
852  for (i = 0; i < 256; i++) {
853  if (packet->options[i].len) {
854  lease->options[i].data =
855  malloc(packet->options[i].len + 1);
856  if (!lease->options[i].data) {
857  warning("dhcpoffer: no memory for option %d", i);
858  free_client_lease(lease);
859  return (NULL);
860  } else {
861  memcpy(lease->options[i].data,
862  packet->options[i].data,
863  packet->options[i].len);
864  lease->options[i].len =
865  packet->options[i].len;
866  lease->options[i].data[lease->options[i].len] =
867  0;
868  }
869  if (!check_option(lease,i)) {
870  /* ignore a bogus lease offer */
871  warning("Invalid lease option - ignoring offer");
872  free_client_lease(lease);
873  return (NULL);
874  }
875  }
876  }
877 
878  lease->address.len = sizeof(packet->raw->yiaddr);
879  memcpy(lease->address.iabuf, &packet->raw->yiaddr, lease->address.len);
880 #ifdef __REACTOS__
881  lease->serveraddress.len = sizeof(packet->raw->siaddr);
882  memcpy(lease->serveraddress.iabuf, &packet->raw->siaddr, lease->address.len);
883 #endif
884 
885  /* If the server name was filled out, copy it. */
887  !(packet->options[DHO_DHCP_OPTION_OVERLOAD].data[0] & 2)) &&
888  packet->raw->sname[0]) {
889  lease->server_name = malloc(DHCP_SNAME_LEN + 1);
890  if (!lease->server_name) {
891  warning("dhcpoffer: no memory for server name.");
892  free_client_lease(lease);
893  return (NULL);
894  }
895  memcpy(lease->server_name, packet->raw->sname, DHCP_SNAME_LEN);
896  lease->server_name[DHCP_SNAME_LEN]='\0';
897  if (!res_hnok(lease->server_name) ) {
898  warning("Bogus server name %s", lease->server_name );
899  free_client_lease(lease);
900  return (NULL);
901  }
902 
903  }
904 
905  /* Ditto for the filename. */
907  !(packet->options[DHO_DHCP_OPTION_OVERLOAD].data[0] & 1)) &&
908  packet->raw->file[0]) {
909  /* Don't count on the NUL terminator. */
910  lease->filename = malloc(DHCP_FILE_LEN + 1);
911  if (!lease->filename) {
912  warning("dhcpoffer: no memory for filename.");
913  free_client_lease(lease);
914  return (NULL);
915  }
916  memcpy(lease->filename, packet->raw->file, DHCP_FILE_LEN);
917  lease->filename[DHCP_FILE_LEN]='\0';
918  }
919  return lease;
920 }
921 
922 void
924 {
925  struct interface_info *ip = packet->interface;
926 
927  /* If we're not receptive to an offer right now, or if the offer
928  has an unrecognizable transaction id, then just drop it. */
929  if (packet->interface->client->xid != packet->raw->xid ||
930  (packet->interface->hw_address.hlen != packet->raw->hlen) ||
931  (memcmp(packet->interface->hw_address.haddr,
932  packet->raw->chaddr, packet->raw->hlen)))
933  return;
934 
935  if (ip->client->state != S_REBOOTING &&
936  ip->client->state != S_REQUESTING &&
937  ip->client->state != S_RENEWING &&
938  ip->client->state != S_REBINDING)
939  return;
940 
941  note("DHCPNAK from %s", piaddr(packet->client_addr));
942 
943  if (!ip->client->active) {
944  note("DHCPNAK with no active lease.\n");
945  return;
946  }
947 
948  free_client_lease(ip->client->active);
949  ip->client->active = NULL;
950 
951  /* Stop sending DHCPREQUEST packets... */
953 
954  ip->client->state = S_INIT;
955  state_init(ip);
956 }
957 
958 /* Send out a DHCPDISCOVER packet, and set a timeout to send out another
959  one after the right interval has expired. If we don't get an offer by
960  the time we reach the panic interval, call the panic function. */
961 
962 void
963 send_discover(void *ipp)
964 {
965  struct interface_info *ip = ipp;
966  int interval, increase = 1;
968 
969  DH_DbgPrint(MID_TRACE,("Doing discover on interface %p\n",ip));
970 
971  time(&cur_time);
972 
973  /* Figure out how long it's been since we started transmitting. */
974  interval = cur_time - ip->client->first_sending;
975 
976  /* If we're past the panic timeout, call the script and tell it
977  we haven't found anything for this interface yet. */
978  if (interval > ip->client->config->timeout) {
979  state_panic(ip);
980  ip->client->first_sending = cur_time;
981  }
982 
983  /* If we're selecting media, try the whole list before doing
984  the exponential backoff, but if we've already received an
985  offer, stop looping, because we obviously have it right. */
986  if (!ip->client->offered_leases &&
987  ip->client->config->media) {
988  int fail = 0;
989 
990  if (ip->client->medium) {
991  ip->client->medium = ip->client->medium->next;
992  increase = 0;
993  }
994  if (!ip->client->medium) {
995  if (fail)
996  error("No valid media types for %s!", ip->name);
997  ip->client->medium = ip->client->config->media;
998  increase = 1;
999  }
1000 
1001  note("Trying medium \"%s\" %d", ip->client->medium->string,
1002  increase);
1003  /* XXX Support other media types eventually */
1004  }
1005 
1006  /*
1007  * If we're supposed to increase the interval, do so. If it's
1008  * currently zero (i.e., we haven't sent any packets yet), set
1009  * it to one; otherwise, add to it a random number between zero
1010  * and two times itself. On average, this means that it will
1011  * double with every transmission.
1012  */
1013  if (increase) {
1014  if (!ip->client->interval)
1015  ip->client->interval =
1016  ip->client->config->initial_interval;
1017  else {
1018  ip->client->interval += (rand() >> 2) %
1019  (2 * ip->client->interval);
1020  }
1021 
1022  /* Don't backoff past cutoff. */
1023  if (ip->client->interval >
1024  ip->client->config->backoff_cutoff)
1025  ip->client->interval =
1026  ((ip->client->config->backoff_cutoff / 2)
1027  + ((rand() >> 2) %
1028  ip->client->config->backoff_cutoff));
1029  } else if (!ip->client->interval)
1030  ip->client->interval =
1031  ip->client->config->initial_interval;
1032 
1033  /* If the backoff would take us to the panic timeout, just use that
1034  as the interval. */
1035  if (cur_time + ip->client->interval >
1036  ip->client->first_sending + ip->client->config->timeout)
1037  ip->client->interval =
1038  (ip->client->first_sending +
1039  ip->client->config->timeout) - cur_time + 1;
1040 
1041  /* Record the number of seconds since we started sending. */
1042  if (interval < 65536)
1043  ip->client->packet.secs = htons(interval);
1044  else
1045  ip->client->packet.secs = htons(65535);
1046  ip->client->secs = ip->client->packet.secs;
1047 
1048  note("DHCPDISCOVER on %s to %s port %d interval %ld",
1049  ip->name, inet_ntoa(sockaddr_broadcast.sin_addr),
1050  ntohs(sockaddr_broadcast.sin_port), (long int)ip->client->interval);
1051 
1052  /* Send out a packet. */
1053  (void)send_packet(ip, &ip->client->packet, ip->client->packet_length,
1055 
1056  DH_DbgPrint(MID_TRACE,("discover timeout: now %x -> then %x\n",
1057  cur_time, cur_time + ip->client->interval));
1058 
1059  add_timeout(cur_time + ip->client->interval, send_discover, ip);
1060 }
1061 
1062 /*
1063  * state_panic gets called if we haven't received any offers in a preset
1064  * amount of time. When this happens, we try to use existing leases
1065  * that haven't yet expired, and failing that, we call the client script
1066  * and hope it can do something.
1067  */
1068 void
1069 state_panic(void *ipp)
1070 {
1071  struct interface_info *ip = ipp;
1072  uint16_t address_low;
1073  int i;
1074  IPAddr IpAddress;
1075  ULONG Buffer[20];
1076  ULONG BufferSize;
1077  DWORD ret;
1078  PDHCP_ADAPTER Adapter = AdapterFindInfo(ip);
1079 
1080  note("No DHCPOFFERS received.");
1081 
1082  if (!Adapter->NteContext)
1083  {
1084  /* Generate an automatic private address */
1085  DbgPrint("DHCPCSVC: Failed to receive a response from a DHCP server. An automatic private address will be assigned.\n");
1086 
1087  /* FIXME: The address generation code sucks */
1088  srand(0);
1089 
1090  for (;;)
1091  {
1092  address_low = rand();
1093  for (i = 0; i < ip->hw_address.hlen; i++)
1094  address_low += ip->hw_address.haddr[i];
1095 
1096  IpAddress = htonl(0xA9FE0000 | address_low); // 169.254.X.X
1097 
1098  /* Send an ARP request to check if the IP address is already in use */
1099  BufferSize = sizeof(Buffer);
1100  ret = SendARP(IpAddress,
1101  IpAddress,
1102  Buffer,
1103  &BufferSize);
1104  DH_DbgPrint(MID_TRACE,("DHCPCSVC: SendARP returned %lu\n", ret));
1105  if (ret != 0)
1106  {
1107  /* The IP address is not in use */
1108  DH_DbgPrint(MID_TRACE,("DHCPCSVC: Using automatic private address\n"));
1109  AddIPAddress(IpAddress,
1110  htonl(0xFFFF0000), // 255.255.0.0
1111  Adapter->IfMib.dwIndex,
1112  &Adapter->NteContext,
1113  &Adapter->NteInstance);
1114  return;
1115  }
1116  }
1117  }
1118 }
1119 
1120 void
1121 send_request(void *ipp)
1122 {
1123  struct interface_info *ip = ipp;
1124  struct sockaddr_in destination;
1125  struct in_addr from;
1126  int interval;
1127  time_t cur_time;
1128 
1129  time(&cur_time);
1130 
1131  /* Figure out how long it's been since we started transmitting. */
1132  interval = cur_time - ip->client->first_sending;
1133 
1134  /* If we're in the INIT-REBOOT or REQUESTING state and we're
1135  past the reboot timeout, go to INIT and see if we can
1136  DISCOVER an address... */
1137  /* XXX In the INIT-REBOOT state, if we don't get an ACK, it
1138  means either that we're on a network with no DHCP server,
1139  or that our server is down. In the latter case, assuming
1140  that there is a backup DHCP server, DHCPDISCOVER will get
1141  us a new address, but we could also have successfully
1142  reused our old address. In the former case, we're hosed
1143  anyway. This is not a win-prone situation. */
1144  if ((ip->client->state == S_REBOOTING ||
1145  ip->client->state == S_REQUESTING) &&
1146  interval > ip->client->config->reboot_timeout) {
1147  ip->client->state = S_INIT;
1149  state_init(ip);
1150  return;
1151  }
1152 
1153  /* If we're in the reboot state, make sure the media is set up
1154  correctly. */
1155  if (ip->client->state == S_REBOOTING &&
1156  !ip->client->medium &&
1157  ip->client->active->medium ) {
1158  /* If the medium we chose won't fly, go to INIT state. */
1159  /* XXX Nothing for now */
1160 
1161  /* Record the medium. */
1162  ip->client->medium = ip->client->active->medium;
1163  }
1164 
1165  /* If the lease has expired, relinquish the address and go back
1166  to the INIT state. */
1167  if (ip->client->state != S_REQUESTING &&
1168  cur_time > ip->client->active->expiry) {
1169  PDHCP_ADAPTER Adapter = AdapterFindInfo( ip );
1170  /* Run the client script with the new parameters. */
1171  /* No script actions necessary in the expiry case */
1172  /* Now do a preinit on the interface so that we can
1173  discover a new address. */
1174 
1175  if( Adapter )
1176  {
1177  DeleteIPAddress( Adapter->NteContext );
1178  Adapter->NteContext = 0;
1179  }
1180 
1181  ip->client->state = S_INIT;
1182  state_init(ip);
1183  return;
1184  }
1185 
1186  /* Do the exponential backoff... */
1187  if (!ip->client->interval)
1188  ip->client->interval = ip->client->config->initial_interval;
1189  else
1190  ip->client->interval += ((rand() >> 2) %
1191  (2 * ip->client->interval));
1192 
1193  /* Don't backoff past cutoff. */
1194  if (ip->client->interval >
1195  ip->client->config->backoff_cutoff)
1196  ip->client->interval =
1197  ((ip->client->config->backoff_cutoff / 2) +
1198  ((rand() >> 2) % ip->client->interval));
1199 
1200  /* If the backoff would take us to the expiry time, just set the
1201  timeout to the expiry time. */
1202  if (ip->client->state != S_REQUESTING &&
1203  cur_time + ip->client->interval >
1204  ip->client->active->expiry)
1205  ip->client->interval =
1206  ip->client->active->expiry - cur_time + 1;
1207 
1208  /* If the lease T2 time has elapsed, or if we're not yet bound,
1209  broadcast the DHCPREQUEST rather than unicasting. */
1210  memset(&destination, 0, sizeof(destination));
1211  if (ip->client->state == S_REQUESTING ||
1212  ip->client->state == S_REBOOTING ||
1213  cur_time > ip->client->active->rebind)
1214  destination.sin_addr.s_addr = INADDR_BROADCAST;
1215  else
1216  memcpy(&destination.sin_addr.s_addr,
1217  ip->client->destination.iabuf,
1218  sizeof(destination.sin_addr.s_addr));
1219  destination.sin_port = htons(REMOTE_PORT);
1220  destination.sin_family = AF_INET;
1221 // destination.sin_len = sizeof(destination);
1222 
1223  if (ip->client->state != S_REQUESTING)
1224  memcpy(&from, ip->client->active->address.iabuf,
1225  sizeof(from));
1226  else
1227  from.s_addr = INADDR_ANY;
1228 
1229  /* Record the number of seconds since we started sending. */
1230  if (ip->client->state == S_REQUESTING)
1231  ip->client->packet.secs = ip->client->secs;
1232  else {
1233  if (interval < 65536)
1234  ip->client->packet.secs = htons(interval);
1235  else
1236  ip->client->packet.secs = htons(65535);
1237  }
1238 
1239  note("DHCPREQUEST on %s to %s port %d", ip->name,
1240  inet_ntoa(destination.sin_addr), ntohs(destination.sin_port));
1241 
1242  /* Send out a packet. */
1243  (void) send_packet(ip, &ip->client->packet, ip->client->packet_length,
1244  from, &destination, NULL);
1245 
1246  add_timeout(cur_time + ip->client->interval, send_request, ip);
1247 }
1248 
1249 void
1250 send_decline(void *ipp)
1251 {
1252  struct interface_info *ip = ipp;
1253 
1254  note("DHCPDECLINE on %s to %s port %d", ip->name,
1255  inet_ntoa(sockaddr_broadcast.sin_addr),
1256  ntohs(sockaddr_broadcast.sin_port));
1257 
1258  /* Send out a packet. */
1259  (void) send_packet(ip, &ip->client->packet, ip->client->packet_length,
1261 }
1262 
1263 void
1265 {
1266  unsigned char discover = DHCPDISCOVER;
1267  struct tree_cache *options[256];
1268  struct tree_cache option_elements[256];
1269  int i;
1270  ULONG foo = (ULONG) GetTickCount();
1271 
1272  memset(option_elements, 0, sizeof(option_elements));
1273  memset(options, 0, sizeof(options));
1274  memset(&ip->client->packet, 0, sizeof(ip->client->packet));
1275 
1276  /* Set DHCP_MESSAGE_TYPE to DHCPDISCOVER */
1278  options[i] = &option_elements[i];
1279  options[i]->value = &discover;
1280  options[i]->len = sizeof(discover);
1281  options[i]->buf_size = sizeof(discover);
1282  options[i]->timeout = 0xFFFFFFFF;
1283 
1284  /* Request the options we want */
1286  options[i] = &option_elements[i];
1287  options[i]->value = ip->client->config->requested_options;
1288  options[i]->len = ip->client->config->requested_option_count;
1289  options[i]->buf_size =
1290  ip->client->config->requested_option_count;
1291  options[i]->timeout = 0xFFFFFFFF;
1292 
1293  /* If we had an address, try to get it again. */
1294  if (lease) {
1295  ip->client->requested_address = lease->address;
1297  options[i] = &option_elements[i];
1298  options[i]->value = lease->address.iabuf;
1299  options[i]->len = lease->address.len;
1300  options[i]->buf_size = lease->address.len;
1301  options[i]->timeout = 0xFFFFFFFF;
1302  } else
1303  ip->client->requested_address.len = 0;
1304 
1305  /* Send any options requested in the config file. */
1306  for (i = 0; i < 256; i++)
1307  if (!options[i] &&
1308  ip->client->config->send_options[i].data) {
1309  options[i] = &option_elements[i];
1310  options[i]->value =
1311  ip->client->config->send_options[i].data;
1312  options[i]->len =
1313  ip->client->config->send_options[i].len;
1314  options[i]->buf_size =
1315  ip->client->config->send_options[i].len;
1316  options[i]->timeout = 0xFFFFFFFF;
1317  }
1318 
1319  /* Set up the option buffer... */
1320  ip->client->packet_length = cons_options(NULL, &ip->client->packet, 0,
1321  options);
1322  if (ip->client->packet_length < BOOTP_MIN_LEN)
1323  ip->client->packet_length = BOOTP_MIN_LEN;
1324 
1325  ip->client->packet.op = BOOTREQUEST;
1326  ip->client->packet.htype = ip->hw_address.htype;
1327  ip->client->packet.hlen = ip->hw_address.hlen;
1328  ip->client->packet.hops = 0;
1329  ip->client->packet.xid = RtlRandom(&foo);
1330  ip->client->packet.secs = 0; /* filled in by send_discover. */
1331  ip->client->packet.flags = 0;
1332 
1333  memset(&(ip->client->packet.ciaddr),
1334  0, sizeof(ip->client->packet.ciaddr));
1335  memset(&(ip->client->packet.yiaddr),
1336  0, sizeof(ip->client->packet.yiaddr));
1337  memset(&(ip->client->packet.siaddr),
1338  0, sizeof(ip->client->packet.siaddr));
1339  memset(&(ip->client->packet.giaddr),
1340  0, sizeof(ip->client->packet.giaddr));
1341  memcpy(ip->client->packet.chaddr,
1342  ip->hw_address.haddr, ip->hw_address.hlen);
1343 }
1344 
1345 
1346 void
1347 make_request(struct interface_info *ip, struct client_lease * lease)
1348 {
1349  unsigned char request = DHCPREQUEST;
1350  struct tree_cache *options[256];
1351  struct tree_cache option_elements[256];
1352  int i;
1353 
1354  memset(options, 0, sizeof(options));
1355  memset(&ip->client->packet, 0, sizeof(ip->client->packet));
1356 
1357  /* Set DHCP_MESSAGE_TYPE to DHCPREQUEST */
1359  options[i] = &option_elements[i];
1360  options[i]->value = &request;
1361  options[i]->len = sizeof(request);
1362  options[i]->buf_size = sizeof(request);
1363  options[i]->timeout = 0xFFFFFFFF;
1364 
1365  /* Request the options we want */
1367  options[i] = &option_elements[i];
1368  options[i]->value = ip->client->config->requested_options;
1369  options[i]->len = ip->client->config->requested_option_count;
1370  options[i]->buf_size =
1371  ip->client->config->requested_option_count;
1372  options[i]->timeout = 0xFFFFFFFF;
1373 
1374  /* If we are requesting an address that hasn't yet been assigned
1375  to us, use the DHCP Requested Address option. */
1376  if (ip->client->state == S_REQUESTING) {
1377  /* Send back the server identifier... */
1379  options[i] = &option_elements[i];
1380  options[i]->value = lease->options[i].data;
1381  options[i]->len = lease->options[i].len;
1382  options[i]->buf_size = lease->options[i].len;
1383  options[i]->timeout = 0xFFFFFFFF;
1384  }
1385  if (ip->client->state == S_REQUESTING ||
1386  ip->client->state == S_REBOOTING) {
1387  ip->client->requested_address = lease->address;
1389  options[i] = &option_elements[i];
1390  options[i]->value = lease->address.iabuf;
1391  options[i]->len = lease->address.len;
1392  options[i]->buf_size = lease->address.len;
1393  options[i]->timeout = 0xFFFFFFFF;
1394  } else
1395  ip->client->requested_address.len = 0;
1396 
1397  /* Send any options requested in the config file. */
1398  for (i = 0; i < 256; i++)
1399  if (!options[i] &&
1400  ip->client->config->send_options[i].data) {
1401  options[i] = &option_elements[i];
1402  options[i]->value =
1403  ip->client->config->send_options[i].data;
1404  options[i]->len =
1405  ip->client->config->send_options[i].len;
1406  options[i]->buf_size =
1407  ip->client->config->send_options[i].len;
1408  options[i]->timeout = 0xFFFFFFFF;
1409  }
1410 
1411  /* Set up the option buffer... */
1412  ip->client->packet_length = cons_options(NULL, &ip->client->packet, 0,
1413  options);
1414  if (ip->client->packet_length < BOOTP_MIN_LEN)
1415  ip->client->packet_length = BOOTP_MIN_LEN;
1416 
1417  ip->client->packet.op = BOOTREQUEST;
1418  ip->client->packet.htype = ip->hw_address.htype;
1419  ip->client->packet.hlen = ip->hw_address.hlen;
1420  ip->client->packet.hops = 0;
1421  ip->client->packet.xid = ip->client->xid;
1422  ip->client->packet.secs = 0; /* Filled in by send_request. */
1423 
1424  /* If we own the address we're requesting, put it in ciaddr;
1425  otherwise set ciaddr to zero. */
1426  if (ip->client->state == S_BOUND ||
1427  ip->client->state == S_RENEWING ||
1428  ip->client->state == S_REBINDING) {
1429  memcpy(&ip->client->packet.ciaddr,
1430  lease->address.iabuf, lease->address.len);
1431  ip->client->packet.flags = 0;
1432  } else {
1433  memset(&ip->client->packet.ciaddr, 0,
1434  sizeof(ip->client->packet.ciaddr));
1435  ip->client->packet.flags = 0;
1436  }
1437 
1438  memset(&ip->client->packet.yiaddr, 0,
1439  sizeof(ip->client->packet.yiaddr));
1440  memset(&ip->client->packet.siaddr, 0,
1441  sizeof(ip->client->packet.siaddr));
1442  memset(&ip->client->packet.giaddr, 0,
1443  sizeof(ip->client->packet.giaddr));
1444  memcpy(ip->client->packet.chaddr,
1445  ip->hw_address.haddr, ip->hw_address.hlen);
1446 }
1447 
1448 void
1450 {
1451  struct tree_cache *options[256], message_type_tree;
1452  struct tree_cache requested_address_tree;
1453  struct tree_cache server_id_tree, client_id_tree;
1454  unsigned char decline = DHCPDECLINE;
1455  int i;
1456 
1457  memset(options, 0, sizeof(options));
1458  memset(&ip->client->packet, 0, sizeof(ip->client->packet));
1459 
1460  /* Set DHCP_MESSAGE_TYPE to DHCPDECLINE */
1462  options[i] = &message_type_tree;
1463  options[i]->value = &decline;
1464  options[i]->len = sizeof(decline);
1465  options[i]->buf_size = sizeof(decline);
1466  options[i]->timeout = 0xFFFFFFFF;
1467 
1468  /* Send back the server identifier... */
1470  options[i] = &server_id_tree;
1471  options[i]->value = lease->options[i].data;
1472  options[i]->len = lease->options[i].len;
1473  options[i]->buf_size = lease->options[i].len;
1474  options[i]->timeout = 0xFFFFFFFF;
1475 
1476  /* Send back the address we're declining. */
1478  options[i] = &requested_address_tree;
1479  options[i]->value = lease->address.iabuf;
1480  options[i]->len = lease->address.len;
1481  options[i]->buf_size = lease->address.len;
1482  options[i]->timeout = 0xFFFFFFFF;
1483 
1484  /* Send the uid if the user supplied one. */
1486  if (ip->client->config->send_options[i].len) {
1487  options[i] = &client_id_tree;
1488  options[i]->value = ip->client->config->send_options[i].data;
1489  options[i]->len = ip->client->config->send_options[i].len;
1490  options[i]->buf_size = ip->client->config->send_options[i].len;
1491  options[i]->timeout = 0xFFFFFFFF;
1492  }
1493 
1494 
1495  /* Set up the option buffer... */
1496  ip->client->packet_length = cons_options(NULL, &ip->client->packet, 0,
1497  options);
1498  if (ip->client->packet_length < BOOTP_MIN_LEN)
1499  ip->client->packet_length = BOOTP_MIN_LEN;
1500 
1501  ip->client->packet.op = BOOTREQUEST;
1502  ip->client->packet.htype = ip->hw_address.htype;
1503  ip->client->packet.hlen = ip->hw_address.hlen;
1504  ip->client->packet.hops = 0;
1505  ip->client->packet.xid = ip->client->xid;
1506  ip->client->packet.secs = 0; /* Filled in by send_request. */
1507  ip->client->packet.flags = 0;
1508 
1509  /* ciaddr must always be zero. */
1510  memset(&ip->client->packet.ciaddr, 0,
1511  sizeof(ip->client->packet.ciaddr));
1512  memset(&ip->client->packet.yiaddr, 0,
1513  sizeof(ip->client->packet.yiaddr));
1514  memset(&ip->client->packet.siaddr, 0,
1515  sizeof(ip->client->packet.siaddr));
1516  memset(&ip->client->packet.giaddr, 0,
1517  sizeof(ip->client->packet.giaddr));
1518  memcpy(ip->client->packet.chaddr,
1519  ip->hw_address.haddr, ip->hw_address.hlen);
1520 }
1521 
1522 void
1524 {
1525  int i;
1526 
1527  if (lease->server_name)
1528  free(lease->server_name);
1529  if (lease->filename)
1530  free(lease->filename);
1531  for (i = 0; i < 256; i++) {
1532  if (lease->options[i].len)
1533  free(lease->options[i].data);
1534  }
1535  free(lease);
1536 }
1537 
1539 
1540 void
1542 {
1543  struct client_lease *lp;
1544 
1545  if (!leaseFile) {
1547  if (!leaseFile)
1548  error("can't create %s", path_dhclient_db);
1549  } else {
1550  fflush(leaseFile);
1551  rewind(leaseFile);
1552  }
1553 
1554  for (lp = ifi->client->leases; lp; lp = lp->next)
1555  write_client_lease(ifi, lp, 1);
1556  if (ifi->client->active)
1557  write_client_lease(ifi, ifi->client->active, 1);
1558 
1559  fflush(leaseFile);
1560 }
1561 
1562 void
1564  int rewrite)
1565 {
1566  static int leases_written;
1567  struct tm *t;
1568  int i;
1569 
1570  if (!rewrite) {
1571  if (leases_written++ > 20) {
1573  leases_written = 0;
1574  }
1575  }
1576 
1577  /* If the lease came from the config file, we don't need to stash
1578  a copy in the lease database. */
1579  if (lease->is_static)
1580  return;
1581 
1582  if (!leaseFile) { /* XXX */
1584  if (!leaseFile) {
1585  error("can't create %s", path_dhclient_db);
1586  return;
1587  }
1588  }
1589 
1590  fprintf(leaseFile, "lease {\n");
1591  if (lease->is_bootp)
1592  fprintf(leaseFile, " bootp;\n");
1593  fprintf(leaseFile, " interface \"%s\";\n", ip->name);
1594  fprintf(leaseFile, " fixed-address %s;\n", piaddr(lease->address));
1595  if (lease->filename)
1596  fprintf(leaseFile, " filename \"%s\";\n", lease->filename);
1597  if (lease->server_name)
1598  fprintf(leaseFile, " server-name \"%s\";\n",
1599  lease->server_name);
1600  if (lease->medium)
1601  fprintf(leaseFile, " medium \"%s\";\n", lease->medium->string);
1602  for (i = 0; i < 256; i++)
1603  if (lease->options[i].len)
1604  fprintf(leaseFile, " option %s %s;\n",
1605  dhcp_options[i].name,
1606  pretty_print_option(i, lease->options[i].data,
1607  lease->options[i].len, 1, 1));
1608 
1609  t = gmtime(&lease->renewal);
1610  if (t)
1611  fprintf(leaseFile, " renew %d %d/%d/%d %02d:%02d:%02d;\n",
1612  t->tm_wday, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
1613  t->tm_hour, t->tm_min, t->tm_sec);
1614  t = gmtime(&lease->rebind);
1615  if (t)
1616  fprintf(leaseFile, " rebind %d %d/%d/%d %02d:%02d:%02d;\n",
1617  t->tm_wday, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
1618  t->tm_hour, t->tm_min, t->tm_sec);
1619  t = gmtime(&lease->expiry);
1620  if (t)
1621  fprintf(leaseFile, " expire %d %d/%d/%d %02d:%02d:%02d;\n",
1622  t->tm_wday, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
1623  t->tm_hour, t->tm_min, t->tm_sec);
1624  fprintf(leaseFile, "}\n");
1625  fflush(leaseFile);
1626 }
1627 
1628 void
1629 priv_script_init(struct interface_info *ip, char *reason, char *medium)
1630 {
1631  if (ip) {
1632  // XXX Do we need to do anything?
1633  }
1634 }
1635 
1636 void
1637 priv_script_write_params(struct interface_info *ip, char *prefix, struct client_lease *lease)
1638 {
1639  u_int8_t dbuf[1500];
1640  int i, len = 0;
1641 
1642 #if 0
1643  script_set_env(ip->client, prefix, "ip_address",
1644  piaddr(lease->address));
1645 #endif
1646 
1647  if (lease->options[DHO_SUBNET_MASK].len &&
1648  (lease->options[DHO_SUBNET_MASK].len <
1649  sizeof(lease->address.iabuf))) {
1650  struct iaddr netmask, subnet, broadcast;
1651 
1652  memcpy(netmask.iabuf, lease->options[DHO_SUBNET_MASK].data,
1653  lease->options[DHO_SUBNET_MASK].len);
1654  netmask.len = lease->options[DHO_SUBNET_MASK].len;
1655 
1656  subnet = subnet_number(lease->address, netmask);
1657  if (subnet.len) {
1658 #if 0
1659  script_set_env(ip->client, prefix, "network_number",
1660  piaddr(subnet));
1661 #endif
1662  if (!lease->options[DHO_BROADCAST_ADDRESS].len) {
1663  broadcast = broadcast_addr(subnet, netmask);
1664  if (broadcast.len)
1665 #if 0
1666  script_set_env(ip->client, prefix,
1667  "broadcast_address",
1668  piaddr(broadcast));
1669 #else
1670  ;
1671 #endif
1672  }
1673  }
1674  }
1675 
1676 #if 0
1677  if (lease->filename)
1678  script_set_env(ip->client, prefix, "filename", lease->filename);
1679  if (lease->server_name)
1680  script_set_env(ip->client, prefix, "server_name",
1681  lease->server_name);
1682 #endif
1683 
1684  for (i = 0; i < 256; i++) {
1685  u_int8_t *dp = NULL;
1686 
1687  if (ip->client->config->defaults[i].len) {
1688  if (lease->options[i].len) {
1689  switch (
1690  ip->client->config->default_actions[i]) {
1691  case ACTION_DEFAULT:
1692  dp = lease->options[i].data;
1693  len = lease->options[i].len;
1694  break;
1695  case ACTION_SUPERSEDE:
1696 supersede:
1697  dp = ip->client->
1698  config->defaults[i].data;
1699  len = ip->client->
1700  config->defaults[i].len;
1701  break;
1702  case ACTION_PREPEND:
1703  len = ip->client->
1704  config->defaults[i].len +
1705  lease->options[i].len;
1706  if (len >= sizeof(dbuf)) {
1707  warning("no space to %s %s",
1708  "prepend option",
1709  dhcp_options[i].name);
1710  goto supersede;
1711  }
1712  dp = dbuf;
1713  memcpy(dp,
1714  ip->client->
1715  config->defaults[i].data,
1716  ip->client->
1717  config->defaults[i].len);
1718  memcpy(dp + ip->client->
1719  config->defaults[i].len,
1720  lease->options[i].data,
1721  lease->options[i].len);
1722  dp[len] = '\0';
1723  break;
1724  case ACTION_APPEND:
1725  len = ip->client->
1726  config->defaults[i].len +
1727  lease->options[i].len + 1;
1728  if (len > sizeof(dbuf)) {
1729  warning("no space to %s %s",
1730  "append option",
1731  dhcp_options[i].name);
1732  goto supersede;
1733  }
1734  dp = dbuf;
1735  memcpy(dp,
1736  lease->options[i].data,
1737  lease->options[i].len);
1738  memcpy(dp + lease->options[i].len,
1739  ip->client->
1740  config->defaults[i].data,
1741  ip->client->
1742  config->defaults[i].len);
1743  dp[len-1] = '\0';
1744  }
1745  } else {
1746  dp = ip->client->
1747  config->defaults[i].data;
1748  len = ip->client->
1749  config->defaults[i].len;
1750  }
1751  } else if (lease->options[i].len) {
1752  len = lease->options[i].len;
1753  dp = lease->options[i].data;
1754  } else {
1755  len = 0;
1756  }
1757 #if 0
1758  if (len) {
1759  char name[256];
1760 
1761  if (dhcp_option_ev_name(name, sizeof(name),
1762  &dhcp_options[i]))
1763  script_set_env(ip->client, prefix, name,
1764  pretty_print_option(i, dp, len, 0, 0));
1765  }
1766 #endif
1767  }
1768 #if 0
1769  snprintf(tbuf, sizeof(tbuf), "%d", (int)lease->expiry);
1770  script_set_env(ip->client, prefix, "expiry", tbuf);
1771 #endif
1772 }
1773 
1774 int
1775 dhcp_option_ev_name(char *buf, size_t buflen, struct dhcp_option *option)
1776 {
1777  int i;
1778 
1779  for (i = 0; option->name[i]; i++) {
1780  if (i + 1 == buflen)
1781  return 0;
1782  if (option->name[i] == '-')
1783  buf[i] = '_';
1784  else
1785  buf[i] = option->name[i];
1786  }
1787 
1788  buf[i] = 0;
1789  return 1;
1790 }
1791 
1792 #if 0
1793 void
1794 go_daemon(void)
1795 {
1796  static int state = 0;
1797 
1798  if (no_daemon || state)
1799  return;
1800 
1801  state = 1;
1802 
1803  /* Stop logging to stderr... */
1804  log_perror = 0;
1805 
1806  if (daemon(1, 0) == -1)
1807  error("daemon");
1808 
1809  /* we are chrooted, daemon(3) fails to open /dev/null */
1810  if (nullfd != -1) {
1811  dup2(nullfd, STDIN_FILENO);
1812  dup2(nullfd, STDOUT_FILENO);
1813  dup2(nullfd, STDERR_FILENO);
1814  close(nullfd);
1815  nullfd = -1;
1816  }
1817 }
1818 #endif
1819 
1820 int
1822 {
1823  char *opbuf;
1824  char *sbuf;
1825 
1826  /* we use this, since this is what gets passed to dhclient-script */
1827 
1828  opbuf = pretty_print_option(option, l->options[option].data,
1829  l->options[option].len, 0, 0);
1830 
1831  sbuf = option_as_string(option, l->options[option].data,
1832  l->options[option].len);
1833 
1834  switch (option) {
1835  case DHO_SUBNET_MASK:
1836  case DHO_TIME_SERVERS:
1837  case DHO_NAME_SERVERS:
1838  case DHO_ROUTERS:
1840  case DHO_LOG_SERVERS:
1841  case DHO_COOKIE_SERVERS:
1842  case DHO_LPR_SERVERS:
1843  case DHO_IMPRESS_SERVERS:
1845  case DHO_SWAP_SERVER:
1846  case DHO_BROADCAST_ADDRESS:
1847  case DHO_NIS_SERVERS:
1848  case DHO_NTP_SERVERS:
1850  case DHO_NETBIOS_DD_SERVER:
1851  case DHO_FONT_SERVERS:
1853  if (!ipv4addrs(opbuf)) {
1854  warning("Invalid IP address in option(%d): %s", option, opbuf);
1855  return (0);
1856  }
1857  return (1) ;
1858  case DHO_HOST_NAME:
1859  case DHO_DOMAIN_NAME:
1860  case DHO_NIS_DOMAIN:
1861  if (!res_hnok(sbuf))
1862  warning("Bogus Host Name option %d: %s (%s)", option,
1863  sbuf, opbuf);
1864  return (1);
1865  case DHO_PAD:
1866  case DHO_TIME_OFFSET:
1867  case DHO_BOOT_SIZE:
1868  case DHO_MERIT_DUMP:
1869  case DHO_ROOT_PATH:
1870  case DHO_EXTENSIONS_PATH:
1871  case DHO_IP_FORWARDING:
1873  case DHO_POLICY_FILTER:
1875  case DHO_DEFAULT_IP_TTL:
1878  case DHO_INTERFACE_MTU:
1879  case DHO_ALL_SUBNETS_LOCAL:
1881  case DHO_MASK_SUPPLIER:
1882  case DHO_ROUTER_DISCOVERY:
1884  case DHO_STATIC_ROUTES:
1886  case DHO_ARP_CACHE_TIMEOUT:
1888  case DHO_DEFAULT_TCP_TTL:
1892  case DHO_NETBIOS_NODE_TYPE:
1893  case DHO_NETBIOS_SCOPE:
1894  case DHO_X_DISPLAY_MANAGER:
1896  case DHO_DHCP_LEASE_TIME:
1898  case DHO_DHCP_MESSAGE_TYPE:
1900  case DHO_DHCP_MESSAGE:
1902  case DHO_DHCP_RENEWAL_TIME:
1907  case DHO_END:
1908  return (1);
1909  default:
1910  warning("unknown dhcp option value 0x%x", option);
1911  return (unknown_ok);
1912  }
1913 }
1914 
1915 int
1916 res_hnok(const char *dn)
1917 {
1918  int pch = PERIOD, ch = *dn++;
1919 
1920  while (ch != '\0') {
1921  int nch = *dn++;
1922 
1923  if (periodchar(ch)) {
1924  ;
1925  } else if (periodchar(pch)) {
1926  if (!borderchar(ch))
1927  return (0);
1928  } else if (periodchar(nch) || nch == '\0') {
1929  if (!borderchar(ch))
1930  return (0);
1931  } else {
1932  if (!middlechar(ch))
1933  return (0);
1934  }
1935  pch = ch, ch = nch;
1936  }
1937  return (1);
1938 }
1939 
1940 /* Does buf consist only of dotted decimal ipv4 addrs?
1941  * return how many if so,
1942  * otherwise, return 0
1943  */
1944 int
1946 {
1947  char *tmp;
1948  struct in_addr jnk;
1949  int i = 0;
1950 
1951  note("Input: %s", buf);
1952 
1953  do {
1954  tmp = strtok(buf, " ");
1955  note("got %s", tmp);
1956  if( tmp && inet_aton(tmp, &jnk) ) i++;
1957  buf = NULL;
1958  } while( tmp );
1959 
1960  return (i);
1961 }
1962 
1963 
1964 char *
1965 option_as_string(unsigned int code, unsigned char *data, int len)
1966 {
1967  static char optbuf[32768]; /* XXX */
1968  char *op = optbuf;
1969  int opleft = sizeof(optbuf);
1970  unsigned char *dp = data;
1971 
1972  if (code > 255)
1973  error("option_as_string: bad code %d", code);
1974 
1975  for (; dp < data + len; dp++) {
1976  if (!isascii(*dp) || !isprint(*dp)) {
1977  if (dp + 1 != data + len || *dp != 0) {
1978  _snprintf(op, opleft, "\\%03o", *dp);
1979  op += 4;
1980  opleft -= 4;
1981  }
1982  } else if (*dp == '"' || *dp == '\'' || *dp == '$' ||
1983  *dp == '`' || *dp == '\\') {
1984  *op++ = '\\';
1985  *op++ = *dp;
1986  opleft -= 2;
1987  } else {
1988  *op++ = *dp;
1989  opleft--;
1990  }
1991  }
1992  if (opleft < 1)
1993  goto toobig;
1994  *op = 0;
1995  return optbuf;
1996 toobig:
1997  warning("dhcp option too large");
1998  return "<error>";
1999 }
2000 
ULONG NteInstance
Definition: rosdhcp.h:70
NTSYSAPI ULONG NTAPI RtlRandom(_Inout_ PULONG Seed)
#define _PATH_DHCLIENT_CONF
Definition: dhcpd.h:274
#define DHO_NAME_SERVERS
Definition: dhcp.h:101
Definition: dhcpd.h:175
#define DHO_IMPRESS_SERVERS
Definition: dhcp.h:106
time_t rebind
Definition: dhcpd.h:155
_CRTIMP void __cdecl tzset(void)
#define DHO_DHCP_MESSAGE
Definition: dhcp.h:152
#define DHO_IP_FORWARDING
Definition: dhcp.h:115
#define INADDR_BROADCAST
Definition: winsock.h:313
DWORD WINAPI CreateIpForwardEntry(PMIB_IPFORWARDROW pRoute)
#define DHO_END
Definition: dhcp.h:159
MIB_IFROW IfMib
Definition: rosdhcp.h:66
#define MID_TRACE
Definition: debug.h:15
void send_request(void *ipp)
Definition: dhclient.c:1121
struct png_info_def **typedef void(__cdecl typeof(png_destroy_read_struct))(struct png_struct_def **
Definition: typeof.h:49
void state_reboot(void *ipp)
Definition: dhclient.c:180
int addr_eq(struct iaddr a, struct iaddr b)
Definition: util.c:100
u_short sin_port
Definition: winsock.h:511
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
#define ERROR_SUCCESS
Definition: deptool.c:10
DWORD WINAPI DeleteIpForwardEntry(PMIB_IPFORWARDROW pRoute)
void dhcpoffer(struct packet *packet)
Definition: dhclient.c:718
#define error(str)
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int no_daemon
Definition: dhclient.c:93
char * strcat(char *DstString, const char *SrcString)
Definition: utclib.c:568
ULONG NteContext
Definition: rosdhcp.h:70
void rewrite_client_leases(struct interface_info *ifi)
Definition: dhclient.c:1541
UCHAR packet[_PAGE_SIZE]
Definition: serial.c:53
void dhcpnak(struct packet *packet)
Definition: dhclient.c:923
#define DbgPrint
Definition: loader.c:25
#define DHO_DHCP_CLASS_IDENTIFIER
Definition: dhcp.h:156
#define DHCPOFFER
Definition: dhcp.h:163
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
IN BOOLEAN OUT PSTR Buffer
Definition: progress.h:34
int check_option(struct client_lease *l, int option)
Definition: dhclient.c:1821
#define DHO_NON_LOCAL_SOURCE_ROUTING
Definition: dhcp.h:116
#define DHO_DHCP_LEASE_TIME
Definition: dhcp.h:147
#define REMOTE_PORT
Definition: dhcpd.h:113
#define DHO_ROUTER_SOLICITATION_ADDRESS
Definition: dhcp.h:128
char * pretty_print_option(unsigned int code, unsigned char *data, int len, int emit_commas, int emit_quotes)
Definition: options.c:396
void AdapterInit()
Definition: adapter.c:187
time_t expiry
Definition: dhcpd.h:155
#define DHCPACK
Definition: dhcp.h:166
#define DHO_NETBIOS_NODE_TYPE
Definition: dhcp.h:142
char CHAR
Definition: xmlstorage.h:175
#define free
Definition: debug_ros.c:5
unsigned char iabuf[16]
Definition: dhcpd.h:127
#define DHO_DHCP_MESSAGE_TYPE
Definition: dhcp.h:149
Definition: dhcpd.h:172
FILE * leaseFile
Definition: dhclient.c:1538
LONG NTSTATUS
Definition: precomp.h:26
int routefd
Definition: dhclient.c:95
#define DHO_NIS_DOMAIN
Definition: dhcp.h:136
void write_client_lease(struct interface_info *ip, struct client_lease *lease, int rewrite)
Definition: dhclient.c:1563
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Definition: time.c:455
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struct client_state * client
Definition: dhcpd.h:238
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struct iaddr iaddr_broadcast
Definition: dhclient.c:80
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Definition: gl.h:2047
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Definition: dhcp.h:103
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Definition: dhclient.c:500
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Definition: reg.c:3331
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Definition: wintirpc.h:48
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Definition: compat.h:590
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Definition: dhcp.h:96
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Definition: ipmib.h:72
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Definition: dhclient.c:324
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Definition: dhclient.c:1264
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Definition: dhclient.c:662
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Definition: dhclient.c:636
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Definition: api.c:30
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Definition: mkdosfs.c:366
unsigned short int uint16_t
Definition: acefiex.h:54
int res_hnok(const char *dn)
Definition: dhclient.c:1916
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Definition: dhcp.h:151
#define htonl(x)
Definition: module.h:212
#define pch(ap)
Definition: match.c:418
#define DHCP_FILE_LEN
Definition: dhcp.h:47
#define STDIN_FILENO
Definition: syshdrs.h:88
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Definition: dhcp.h:54
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Definition: dhcp.h:138
void priv_script_write_params(struct interface_info *ip, char *prefix, struct client_lease *lease)
Definition: dhclient.c:1637
ssize_t send_packet(struct interface_info *ip, struct dhcp_packet *p, size_t size, struct in_addr addr, struct sockaddr_in *broadcast, struct hardware *hardware)
Definition: socket.c:9
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Definition: dhclient.c:1250
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Definition: dhcp.h:99
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Definition: dhcpd.h:162
#define DHO_ROUTER_DISCOVERY
Definition: dhcp.h:127
#define sprintf(buf, format,...)
Definition: sprintf.c:55
HANDLE PipeInit()
Definition: pipe.c:90
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
struct dhcp_option dhcp_options[256]
Definition: tables.c:68
FxRequest * request
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Definition: dhcpd.h:126
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Definition: xmlstorage.h:200
char * path_dhclient_conf
Definition: dhclient.c:73
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Definition: reg.c:423
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Definition: dhclient.c:137
unsigned char * LPBYTE
Definition: typedefs.h:53
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Definition: dhclient.c:74
#define PERIOD
Definition: dhclient.c:58
#define DHO_EXTENSIONS_PATH
Definition: dhcp.h:114
void cancel_timeout(void(*where)(void *), void *what)
Definition: dispatch.c:317
_Check_return_opt_ _CRTIMP int __cdecl fprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format,...)
_Check_return_ int __cdecl rand(void)
Definition: rand.c:10
struct dhcp_packet * raw
Definition: dhcpd.h:136
#define DHO_DHCP_CLIENT_IDENTIFIER
Definition: dhcp.h:157
void script_set_env(struct client_state *, const char *, const char *, const char *)
unsigned char u_int8_t
Definition: rosdhcp.h:33
#define DHO_TIME_OFFSET
Definition: dhcp.h:98
WCHAR * name
Definition: getopt.h:110
int check_arp(struct interface_info *ip, struct client_lease *lp)
Definition: dhclient.c:145
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Definition: dhclient.c:588
#define DHO_ALL_SUBNETS_LOCAL
Definition: dhcp.h:123
VOID ApiInit()
Definition: api.c:18
int privfd
Definition: dhclient.c:77
int note(char *format,...)
Definition: util.c:12
#define DHCPDISCOVER
Definition: dhcp.h:162
Definition: getopt.h:108
#define DHO_ARP_CACHE_TIMEOUT
Definition: dhcp.h:131
#define TIME_MAX
Definition: dhclient.c:90
#define DH_DbgPrint(_t_, _x_)
Definition: debug.h:49
#define DHO_TCP_KEEPALIVE_INTERVAL
Definition: dhcp.h:134
Definition: bufpool.h:45
MIB_IPFORWARDROW RouterMib
Definition: rosdhcp.h:67
#define STDOUT_FILENO
Definition: syshdrs.h:89
#define DHO_INTERFACE_MTU
Definition: dhcp.h:122
ULONG IPAddr
Definition: pfhook.h:35
PDHCP_ADAPTER AdapterFindInfo(struct interface_info *ip)
Definition: adapter.c:541
_Check_return_ _CRTIMP int __cdecl dup2(_In_ int _FileHandleSrc, _In_ int _FileHandleDst)
void set_name_servers(PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
Definition: dhclient.c:406
_CRTIMP void __cdecl rewind(_Inout_ FILE *_File)
#define inet_ntoa(addr)
Definition: inet.h:100
struct interface_info * interface
Definition: dhcpd.h:142
struct iaddr subnet_number(struct iaddr addr, struct iaddr mask)
Definition: util.c:172
IF_INDEX dwForwardIfIndex
Definition: ipmib.h:75
r l[0]
Definition: byte_order.h:167
#define DHO_MAX_DGRAM_REASSEMBLY
Definition: dhcp.h:118
void do_packet(struct interface_info *interface, struct dhcp_packet *packet, int len, unsigned int from_port, struct iaddr from, struct hardware *hfrom)
Definition: options.c:635
#define DHO_FONT_SERVERS
Definition: dhcp.h:144
#define DHO_X_DISPLAY_MANAGER
Definition: dhcp.h:145
Status
Definition: gdiplustypes.h:24
Definition: dhcpd.h:135
#define KEY_WRITE
Definition: nt_native.h:1031
#define DHO_TCP_KEEPALIVE_GARBAGE
Definition: dhcp.h:135
DWORD WINAPI AddIPAddress(IPAddr Address, IPMask Netmask, DWORD IfIndex, PULONG NteContext, PULONG NteInstance)
Definition: iphlpapi_main.c:71
#define middlechar(c)
Definition: dhclient.c:68
DWORD dwForwardNextHop
Definition: ipmib.h:74
#define DHO_TRAILER_ENCAPSULATION
Definition: dhcp.h:130
Definition: dhcpd.h:61
#define DHO_NETBIOS_DD_SERVER
Definition: dhcp.h:141
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define DHO_DHCP_RENEWAL_TIME
Definition: dhcp.h:154
struct client_lease * next
Definition: dhcpd.h:154
#define DHO_NETBIOS_SCOPE
Definition: dhcp.h:143
int cons_options(struct packet *inpacket, struct dhcp_packet *outpacket, int mms, struct tree_cache **options)
Definition: options.c:199
void state_panic(void *ipp)
Definition: dhclient.c:1069
Definition: tcpip.h:125
#define DHO_IEEE802_3_ENCAPSULATION
Definition: dhcp.h:132
#define MAX_PATH
Definition: compat.h:34
int packet_type
Definition: dhcpd.h:138
void usage(void)
Definition: sort.c:65
DWORD dwForwardDest
Definition: ipmib.h:71
#define DHO_SUBNET_MASK
Definition: dhcp.h:97
unsigned long DWORD
Definition: ntddk_ex.h:95
#define DHO_DHCP_OPTION_OVERLOAD
Definition: dhcp.h:148
UINT op
Definition: effect.c:236
struct option_data options[256]
Definition: dhcpd.h:144
#define inet_aton(ap, inp)
Definition: adns_win32.h:161
#define BOOTREQUEST
Definition: dhcp.h:78
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl.h:1950
struct option_data options[256]
Definition: dhcpd.h:166
#define DHCPDECLINE
Definition: dhcp.h:165
static WCHAR reason[MAX_STRING_RESOURCE_LEN]
Definition: object.c:1904
void(* bootp_packet_handler)(struct interface_info *, struct dhcp_packet *, int, unsigned int, struct iaddr, struct hardware *)
Definition: dispatch.c:55
#define DHO_RESOURCE_LOCATION_SERVERS
Definition: dhcp.h:107
char * option_as_string(unsigned int code, unsigned char *data, int len)
Definition: dhclient.c:1965
int ret
#define DHO_PATH_MTU_PLATEAU_TABLE
Definition: dhcp.h:121
#define BOOTREPLY
Definition: dhcp.h:79
#define ASSERT_STATE(state_is, state_shouldbe)
Definition: dhclient.c:88
#define DHO_STATIC_ROUTES
Definition: dhcp.h:129
static const WCHAR L[]
Definition: oid.c:1250
time_t scripttime
Definition: dhclient.c:107
#define ntohs(x)
Definition: module.h:208
#define DHO_PERFORM_MASK_DISCOVERY
Definition: dhcp.h:125
#define DHCPNAK
Definition: dhcp.h:167
Definition: dhcpd.h:125
static int state
Definition: maze.c:121
struct interface_info DhclientInfo
Definition: rosdhcp.h:71
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
GLenum GLsizei len
Definition: glext.h:6722
_Check_return_ _CRTIMP FILE *__cdecl fopen(_In_z_ const char *_Filename, _In_z_ const char *_Mode)
#define DHO_NETBIOS_NAME_SERVERS
Definition: dhcp.h:140
Definition: time.h:68
#define close
Definition: acwin.h:98
Definition: inflate.c:139
#define DHO_PATH_MTU_AGING_TIMEOUT
Definition: dhcp.h:120
void send_discover(void *ipp)
Definition: dhclient.c:963
#define DHO_DHCP_REBINDING_TIME
Definition: dhcp.h:155
struct in_addr sin_addr
Definition: winsock.h:512
int log_priority
Definition: dhclient.c:92
void state_selecting(void *ipp)
Definition: dhclient.c:243
#define DHO_TIME_SERVERS
Definition: dhcp.h:100
void AdapterStop()
Definition: adapter.c:500
static unsigned __int64 next
Definition: rand_nt.c:6
struct client_lease * packet_to_lease(struct packet *packet)
Definition: dhclient.c:837
DWORD WINAPI DeleteIPAddress(ULONG NTEContext)
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
LONG WINAPI RegDeleteValueW(HKEY hKey, LPCWSTR lpValueName)
Definition: reg.c:2355
_Check_return_opt_ _CRTIMP int __cdecl fflush(_Inout_opt_ FILE *_File)
__kernel_time_t time_t
Definition: linux.h:252
#define htons(x)
Definition: module.h:213
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Definition: dhclient.c:111
#define DHO_SWAP_SERVER
Definition: dhcp.h:112
#define DHO_BOOT_SIZE
Definition: dhcp.h:109
#define isascii
Definition: ctype.h:742
#define DHO_BROADCAST_ADDRESS
Definition: dhcp.h:124
struct iaddr broadcast_addr(struct iaddr addr, struct iaddr mask)
Definition: util.c:167
time_t renewal
Definition: dhcpd.h:155
#define DHO_HOST_NAME
Definition: dhcp.h:108
int dhcp_option_ev_name(char *buf, size_t buflen, struct dhcp_option *option)
Definition: dhclient.c:1775
int log_perror
Definition: dhclient.c:76
#define DHCPREQUEST
Definition: dhcp.h:164
#define NULL
Definition: types.h:112
static void increase(int &a_)
char * piaddr(struct iaddr addr)
Definition: util.c:6
struct string_list * medium
Definition: dhcpd.h:163
char * strtok(char *String, const char *Delimiters)
Definition: utclib.c:338
u_int32_t getULong(unsigned char *data)
Definition: util.c:96
#define DHO_DHCP_SERVER_IDENTIFIER
Definition: dhcp.h:150
Definition: tftpd.h:85
int unknown_ok
Definition: dhclient.c:94
void add_timeout(time_t when, void(*where)(void *), void *what)
Definition: dispatch.c:254
struct sockaddr_in sockaddr_broadcast
Definition: dhclient.c:82
struct iaddr client_addr
Definition: dhcpd.h:141
#define DHO_DHCP_USER_CLASS_ID
Definition: dhcp.h:158
int nch
Definition: scanf.h:135
#define isprint(c)
Definition: acclib.h:73
#define borderchar(c)
Definition: dhclient.c:67
#define DHO_VENDOR_ENCAPSULATED_OPTIONS
Definition: dhcp.h:139
#define DHCP_DEFAULT_LEASE_TIME
Definition: rosdhcp.h:30
#define DHO_DHCP_REQUESTED_ADDRESS
Definition: dhcp.h:146
#define DHO_DEFAULT_IP_TTL
Definition: dhcp.h:119
#define DHO_NIS_SERVERS
Definition: dhcp.h:137
struct in_addr inaddr_any
Definition: dhclient.c:81
Definition: name.c:38
void int int ULONGLONG int va_list * ap
Definition: winesup.h:32
void dhcp(struct packet *packet)
Definition: dhclient.c:682
void state_init(void *ipp)
Definition: dhclient.c:218
#define DHO_DEFAULT_TCP_TTL
Definition: dhcp.h:133
#define DHO_DHCP_MAX_MESSAGE_SIZE
Definition: dhcp.h:153
struct iaddr address
Definition: dhcpd.h:156
unsigned int ULONG
Definition: retypes.h:1
#define AF_INET
Definition: tcpip.h:117
#define DHO_DOMAIN_NAME
Definition: dhcp.h:111
unsigned int is_bootp
Definition: dhcpd.h:165
#define debug(msg)
Definition: key_call.c:71
#define malloc
Definition: debug_ros.c:4
_CRTIMP struct tm *__cdecl gmtime(const time_t *_Time)
Definition: time.h:415
DWORD dwIndex
Definition: ifmib.h:38
void set_domain(PDHCP_ADAPTER Adapter, struct client_lease *new_lease)
Definition: dhclient.c:451
#define DHO_DOMAIN_NAME_SERVERS
Definition: dhcp.h:102
GLuint GLuint GLsizei GLenum type
Definition: gl.h:1545
LONG WINAPI RegSetValueExA(HKEY hKey, LPCSTR lpValueName, DWORD Reserved, DWORD dwType, CONST BYTE *lpData, DWORD cbData)
Definition: reg.c:4812
UINT(* handler)(MSIPACKAGE *)
Definition: action.c:7786
#define DHO_MASK_SUPPLIER
Definition: dhcp.h:126
void make_request(struct interface_info *ip, struct client_lease *lease)
Definition: dhclient.c:1347
DWORD dwForwardMetric1
Definition: ipmib.h:88
CardRegion * from
Definition: spigame.cpp:19
#define DHCP_SNAME_LEN
Definition: dhcp.h:46
#define DHO_POLICY_FILTER
Definition: dhcp.h:117
void make_decline(struct interface_info *ip, struct client_lease *lease)
Definition: dhclient.c:1449
#define memset(x, y, z)
Definition: compat.h:39
#define REG_DWORD
Definition: sdbapi.c:596
unsigned int is_static
Definition: dhcpd.h:164
int fork_privchld(int, int)
#define DHO_MERIT_DUMP
Definition: dhcp.h:110
int ipv4addrs(char *buf)
Definition: dhclient.c:1945
unsigned long debug_trace_level
Definition: dhclient.c:71
void free_client_lease(struct client_lease *lease)
Definition: dhclient.c:1523
short sin_family
Definition: winsock.h:510
void go_daemon(void)
DWORD WINAPI SendARP(IPAddr DestIP, IPAddr SrcIP, PULONG pMacAddr, PULONG PhyAddrLen)
#define BufferSize
Definition: mmc.h:75
#define warning(s)
Definition: debug.h:83
_In_ WDFMEMORY _Out_opt_ size_t * BufferSize
Definition: wdfmemory.h:251
#define DHO_LPR_SERVERS
Definition: dhcp.h:105
#define STDERR_FILENO
Definition: syshdrs.h:90
#define DHO_COOKIE_SERVERS
Definition: dhcp.h:104
#define DHO_ROOT_PATH
Definition: dhcp.h:113
#define HKEY_LOCAL_MACHINE
Definition: winreg.h:12
void priv_script_init(struct interface_info *ip, char *reason, char *medium)
Definition: dhclient.c:1629
char * server_name
Definition: dhcpd.h:157
#define REG_SZ
Definition: layer.c:22
#define periodchar(c)
Definition: dhclient.c:61