2 This file is part of GNUnet.
3 (C) 2012 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file gnunet-gns-helper-service-w32.c
22 * @brief an intermediary service to access distributed GNS
23 * @author Christian Grothoff
28 #include <gnunet_util_lib.h>
29 #include <gnunet_dnsparser_lib.h>
30 #include <gnunet_namestore_service.h>
31 #include <gnunet_gns_service.h>
32 #include "gnunet_w32nsp_lib.h"
33 #include "w32resolver.h"
37 #define DEFINE_DNS_GUID(a,x) DEFINE_GUID(a, 0x00090035, 0x0000, x, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46)
38 DEFINE_DNS_GUID(SVCID_DNS_TYPE_A, 0x0001);
39 DEFINE_DNS_GUID(SVCID_DNS_TYPE_NS, 0x0002);
40 DEFINE_DNS_GUID(SVCID_DNS_TYPE_CNAME, 0x0005);
41 DEFINE_DNS_GUID(SVCID_DNS_TYPE_SOA, 0x0006);
42 DEFINE_DNS_GUID(SVCID_DNS_TYPE_PTR, 0x000c);
43 DEFINE_DNS_GUID(SVCID_DNS_TYPE_MX, 0x000f);
44 DEFINE_DNS_GUID(SVCID_DNS_TYPE_TEXT, 0x0010);
45 DEFINE_DNS_GUID(SVCID_DNS_TYPE_AAAA, 0x001c);
46 DEFINE_DNS_GUID(SVCID_DNS_TYPE_SRV, 0x0021);
47 DEFINE_GUID(SVCID_HOSTNAME, 0x0002a800, 0x0000, 0x0000, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);
48 DEFINE_GUID(SVCID_INET_HOSTADDRBYNAME, 0x0002a803, 0x0000, 0x0000, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);
52 struct GNUNET_SERVER_Client *client;
60 * Handle to GNS service.
62 static struct GNUNET_GNS_Handle *gns;
64 static struct GNUNET_CRYPTO_ShortHashCode *zone = NULL;
65 static struct GNUNET_CRYPTO_ShortHashCode user_zone;
66 struct GNUNET_CRYPTO_RsaPrivateKey *shorten_key = NULL;
70 * Task run on shutdown. Cleans up everything.
73 * @param tc scheduler context
76 do_shutdown (void *cls,
77 const struct GNUNET_SCHEDULER_TaskContext *tc)
81 GNUNET_GNS_disconnect (gns);
87 * Context for transmitting replies to clients.
89 struct TransmitCallbackContext
93 * We keep these in a doubly-linked list (for cleanup).
95 struct TransmitCallbackContext *next;
98 * We keep these in a doubly-linked list (for cleanup).
100 struct TransmitCallbackContext *prev;
103 * The message that we're asked to transmit.
105 struct GNUNET_MessageHeader *msg;
108 * Handle for the transmission request.
110 struct GNUNET_SERVER_TransmitHandle *th;
113 * Client that we are transmitting to.
115 struct GNUNET_SERVER_Client *client;
121 * Head of the doubly-linked list (for cleanup).
123 static struct TransmitCallbackContext *tcc_head;
126 * Tail of the doubly-linked list (for cleanup).
128 static struct TransmitCallbackContext *tcc_tail;
131 * Have we already cleaned up the TCCs and are hence no longer
132 * willing (or able) to transmit anything to anyone?
134 static int cleaning_done;
137 * Function called to notify a client about the socket
138 * begin ready to queue more data. "buf" will be
139 * NULL and "size" zero if the socket was closed for
140 * writing in the meantime.
143 * @param size number of bytes available in buf
144 * @param buf where the callee should write the message
145 * @return number of bytes written to buf
148 transmit_callback (void *cls, size_t size, void *buf)
150 struct TransmitCallbackContext *tcc = cls;
154 GNUNET_CONTAINER_DLL_remove (tcc_head, tcc_tail, tcc);
155 msize = ntohs (tcc->msg->size);
158 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
159 _("Transmission to client failed!\n"));
160 GNUNET_SERVER_client_drop (tcc->client);
161 GNUNET_free (tcc->msg);
165 GNUNET_assert (size >= msize);
166 memcpy (buf, tcc->msg, msize);
167 GNUNET_SERVER_client_drop (tcc->client);
168 GNUNET_free (tcc->msg);
175 * Transmit the given message to the client.
177 * @param client target of the message
178 * @param msg message to transmit, will be freed!
181 transmit (struct GNUNET_SERVER_Client *client,
182 struct GNUNET_MessageHeader *msg)
184 struct TransmitCallbackContext *tcc;
186 if (GNUNET_YES == cleaning_done)
188 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
189 _("Shutdown in progress, aborting transmission.\n"));
190 GNUNET_SERVER_client_drop (client);
194 tcc = GNUNET_malloc (sizeof (struct TransmitCallbackContext));
196 tcc->client = client;
199 GNUNET_SERVER_notify_transmit_ready (client,
201 GNUNET_TIME_UNIT_FOREVER_REL,
202 &transmit_callback, tcc)))
205 GNUNET_SERVER_client_drop (client);
210 GNUNET_SERVER_client_keep (client);
211 GNUNET_CONTAINER_DLL_insert (tcc_head, tcc_tail, tcc);
214 #define MarshallPtr(ptr, base, type) \
216 ptr = (type *) ((char *) ptr - (char *) base)
219 MarshallWSAQUERYSETW (WSAQUERYSETW *qs, GUID *sc)
222 MarshallPtr (qs->lpszServiceInstanceName, qs, wchar_t);
223 MarshallPtr (qs->lpServiceClassId, qs, GUID);
224 MarshallPtr (qs->lpVersion, qs, WSAVERSION);
225 MarshallPtr (qs->lpNSProviderId, qs, GUID);
226 MarshallPtr (qs->lpszContext, qs, wchar_t);
227 MarshallPtr (qs->lpafpProtocols, qs, AFPROTOCOLS);
228 MarshallPtr (qs->lpszQueryString, qs, wchar_t);
229 for (i = 0; i < qs->dwNumberOfCsAddrs; i++)
231 MarshallPtr (qs->lpcsaBuffer[i].LocalAddr.lpSockaddr, qs, SOCKADDR);
232 MarshallPtr (qs->lpcsaBuffer[i].RemoteAddr.lpSockaddr, qs, SOCKADDR);
234 MarshallPtr (qs->lpcsaBuffer, qs, CSADDR_INFO);
235 if (IsEqualGUID (&SVCID_INET_HOSTADDRBYNAME, sc) && qs->lpBlob != NULL && qs->lpBlob->pBlobData != NULL)
238 he = (struct hostent *) qs->lpBlob->pBlobData;
239 for (i = 0; he->h_aliases[i] != NULL; i++)
240 MarshallPtr (he->h_aliases[i], he, char);
241 MarshallPtr (he->h_aliases, he, char *);
242 MarshallPtr (he->h_name, he, char);
243 for (i = 0; he->h_addr_list[i] != NULL; i++)
244 MarshallPtr (he->h_addr_list[i], he, void);
245 MarshallPtr (he->h_addr_list, he, char *);
246 MarshallPtr (qs->lpBlob->pBlobData, qs, void);
248 MarshallPtr (qs->lpBlob, qs, BLOB);
253 process_ip_lookup_result (void* cls,
255 const struct GNUNET_NAMESTORE_RecordData *rd)
258 struct request *rq = (struct request *) cls;
259 struct GNUNET_W32RESOLVER_GetMessage *msg;
260 struct GNUNET_MessageHeader *msgend;
266 size_t blobaddrcount = 0;
268 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
269 "Got lookup result with count %u for rq %p with client %p\n",
270 rd_count, rq, rq->client);
274 size = sizeof (struct GNUNET_MessageHeader);
275 msg = GNUNET_malloc (size);
276 msg->header.size = htons (size);
277 msg->header.type = htons (GNUNET_MESSAGE_TYPE_W32RESOLVER_RESPONSE);
278 transmit (rq->client, &msg->header);
282 size = sizeof (struct GNUNET_W32RESOLVER_GetMessage) + sizeof (WSAQUERYSETW);
283 size += (wcslen (rq->name) + 1) * sizeof (wchar_t);
284 size += sizeof (GUID);
285 /* lpszComment ? a TXT record? */
286 size += sizeof (GUID);
287 /* lpszContext ? Not sure what it is */
289 for (i = 0; i < rd_count; i++)
291 switch (rd[i].record_type)
293 case GNUNET_GNS_RECORD_A:
294 if (rd[i].data_size != sizeof (struct in_addr))
296 size += sizeof (CSADDR_INFO) + sizeof (struct sockaddr_in) * 2;
299 case GNUNET_GNS_RECORD_AAAA:
300 if (rd[i].data_size != sizeof (struct in6_addr))
302 size += sizeof (CSADDR_INFO) + sizeof (struct sockaddr_in6) * 2;
307 if (IsEqualGUID (&SVCID_INET_HOSTADDRBYNAME, &rq->sc))
309 size += sizeof (BLOB);
310 blobsize += sizeof (struct hostent);
311 blobsize += strlen (rq->u8name) + 1;
312 blobsize += sizeof (void *); /* For aliases */
313 blobsize += sizeof (void *); /* For addresses */
314 for (i = 0; i < rd_count; i++)
316 if ((rq->af == AF_INET || rq->af == AF_UNSPEC) && rd[i].record_type == GNUNET_GNS_RECORD_A)
318 blobsize += sizeof (void *);
319 blobsize += sizeof (struct in_addr);
322 else if (rq->af == AF_INET6 && rd[i].record_type == GNUNET_GNS_RECORD_AAAA)
324 blobsize += sizeof (void *);
325 blobsize += sizeof (struct in6_addr);
331 size += sizeof (struct GNUNET_MessageHeader);
332 size_recalc = sizeof (struct GNUNET_W32RESOLVER_GetMessage) + sizeof (WSAQUERYSETW);
333 msg = GNUNET_malloc (size);
334 msg->header.size = htons (size - sizeof (struct GNUNET_MessageHeader));
335 msg->header.type = htons (GNUNET_MESSAGE_TYPE_W32RESOLVER_RESPONSE);
336 msg->af = htonl (rq->af);
337 msg->sc_data1 = htonl (rq->sc.Data1);
338 msg->sc_data2 = htons (rq->sc.Data2);
339 msg->sc_data3 = htons (rq->sc.Data3);
341 for (i = 0; i < 8; i++)
342 msg->sc_data4 |= rq->sc.Data4[i] << ((7 - i) * 8);
343 msg->sc_data4 = GNUNET_htonll (msg->sc_data4);
344 qs = (WSAQUERYSETW *) &msg[1];
345 ptr = (char *) &qs[1];
346 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
347 qs->dwSize = sizeof (WSAQUERYSETW);
348 qs->lpszServiceInstanceName = (wchar_t *) ptr;
349 ptr += (wcslen (rq->name) + 1) * sizeof (wchar_t);
350 size_recalc += (wcslen (rq->name) + 1) * sizeof (wchar_t);
351 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
352 wcscpy (qs->lpszServiceInstanceName, rq->name);
353 qs->lpServiceClassId = (GUID *) ptr;
354 ptr += sizeof (GUID);
355 size_recalc += sizeof (GUID);
356 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
357 memcpy (qs->lpServiceClassId, &rq->sc, sizeof (GUID));
358 qs->lpVersion = NULL;
359 qs->dwNameSpace = NS_DNS;
360 qs->lpNSProviderId = (GUID *) ptr;
361 ptr += sizeof (GUID);
362 size_recalc += sizeof (GUID);
363 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
364 memcpy (qs->lpNSProviderId, &GNUNET_NAMESPACE_PROVIDER_DNS, sizeof (GUID));
365 qs->lpszContext = NULL;
366 qs->dwNumberOfProtocols = 0;
367 qs->lpafpProtocols = NULL;
368 /* Don't bother with this... */
369 qs->lpszQueryString = NULL;
370 qs->dwNumberOfCsAddrs = rd_count;
371 qs->lpcsaBuffer = (CSADDR_INFO *) ptr;
372 ptr += sizeof (CSADDR_INFO) * csanum;
374 for (i = 0; i < rd_count; i++)
376 switch (rd[i].record_type)
378 case GNUNET_GNS_RECORD_A:
379 if (rd[i].data_size != sizeof (struct in_addr))
381 qs->lpcsaBuffer[j].iSocketType = SOCK_STREAM;
382 qs->lpcsaBuffer[j].iProtocol = IPPROTO_TCP;
384 qs->lpcsaBuffer[j].LocalAddr.iSockaddrLength = sizeof (struct sockaddr_in);
385 qs->lpcsaBuffer[j].LocalAddr.lpSockaddr = (SOCKADDR *) ptr;
386 ptr += qs->lpcsaBuffer[j].LocalAddr.iSockaddrLength;
387 memset (qs->lpcsaBuffer[j].LocalAddr.lpSockaddr, 0, qs->lpcsaBuffer[j].LocalAddr.iSockaddrLength);
388 ((struct sockaddr_in *)qs->lpcsaBuffer[j].LocalAddr.lpSockaddr)->sin_family = AF_INET;
390 qs->lpcsaBuffer[j].RemoteAddr.iSockaddrLength = sizeof (struct sockaddr_in);
391 qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr = (SOCKADDR *) ptr;
392 ptr += qs->lpcsaBuffer[j].RemoteAddr.iSockaddrLength;
393 memset (qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr, 0, qs->lpcsaBuffer[j].RemoteAddr.iSockaddrLength);
394 ((struct sockaddr_in *)qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr)->sin_family = AF_INET;
395 ((struct sockaddr_in *)qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr)->sin_port = htonl (53); /* Don't ask why it's 53 */
396 ((struct sockaddr_in *)qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr)->sin_addr = *(struct in_addr *) rd[i].data;
397 size_recalc += sizeof (CSADDR_INFO) + sizeof (struct sockaddr_in) * 2;
400 case GNUNET_GNS_RECORD_AAAA:
401 if (rd[i].data_size != sizeof (struct in6_addr))
403 qs->lpcsaBuffer[j].iSocketType = SOCK_STREAM;
404 qs->lpcsaBuffer[j].iProtocol = IPPROTO_TCP;
406 qs->lpcsaBuffer[j].LocalAddr.iSockaddrLength = sizeof (struct sockaddr_in6);
407 qs->lpcsaBuffer[j].LocalAddr.lpSockaddr = (SOCKADDR *) ptr;
408 ptr += qs->lpcsaBuffer[j].LocalAddr.iSockaddrLength;
409 memset (qs->lpcsaBuffer[j].LocalAddr.lpSockaddr, 0, qs->lpcsaBuffer[j].LocalAddr.iSockaddrLength);
410 ((struct sockaddr_in6 *)qs->lpcsaBuffer[j].LocalAddr.lpSockaddr)->sin6_family = AF_INET6;
412 qs->lpcsaBuffer[j].RemoteAddr.iSockaddrLength = sizeof (struct sockaddr_in6);
413 qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr = (SOCKADDR *) ptr;
414 ptr += qs->lpcsaBuffer[j].RemoteAddr.iSockaddrLength;
415 memset (qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr, 0, qs->lpcsaBuffer[j].RemoteAddr.iSockaddrLength);
416 ((struct sockaddr_in6 *)qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr)->sin6_family = AF_INET6;
417 ((struct sockaddr_in6 *)qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr)->sin6_port = htonl (53); /* Don't ask why it's 53 */
418 ((struct sockaddr_in6 *)qs->lpcsaBuffer[j].RemoteAddr.lpSockaddr)->sin6_addr = *(struct in6_addr *) rd[i].data;
419 size_recalc += sizeof (CSADDR_INFO) + sizeof (struct sockaddr_in6) * 2;
426 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
427 qs->dwOutputFlags = 0;
428 if (IsEqualGUID (&SVCID_INET_HOSTADDRBYNAME, &rq->sc))
431 qs->lpBlob = (BLOB *) ptr;
432 ptr += sizeof (BLOB);
434 size_recalc += sizeof (BLOB);
435 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
437 qs->lpBlob->cbSize = blobsize;
438 qs->lpBlob->pBlobData = (BYTE *) ptr;
439 ptr += sizeof (struct hostent);
441 size_recalc += sizeof (struct hostent);
442 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
444 he = (struct hostent *) qs->lpBlob->pBlobData;
445 he->h_name = (char *) ptr;
446 ptr += strlen (rq->u8name) + 1;
448 size_recalc += strlen (rq->u8name) + 1;
449 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
451 strcpy (he->h_name, rq->u8name);
452 he->h_aliases = (char **) ptr;
453 ptr += sizeof (void *);
455 size_recalc += sizeof (void *); /* For aliases */
456 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
458 he->h_aliases[0] = NULL;
459 he->h_addrtype = rq->af;
460 he->h_length = rq->af == AF_INET || rq->af == AF_UNSPEC ? sizeof (struct in_addr) : sizeof (struct in6_addr);
461 he->h_addr_list = (char **) ptr;
462 ptr += sizeof (void *) * (blobaddrcount + 1);
464 size_recalc += sizeof (void *) * (blobaddrcount + 1); /* For addresses */
465 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
468 for (i = 0; i < rd_count; i++)
470 if ((rq->af == AF_INET || rq->af == AF_UNSPEC) &&
471 rd[i].record_type == GNUNET_GNS_RECORD_A)
473 he->h_addr_list[j] = (char *) ptr;
474 ptr += sizeof (struct in_addr);
476 size_recalc += sizeof (struct in_addr);
477 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
479 memcpy (he->h_addr_list[j], rd[i].data, sizeof (struct in_addr));
482 else if (rq->af == AF_INET6 && rd[i].record_type == GNUNET_GNS_RECORD_AAAA)
484 he->h_addr_list[j] = (char *) ptr;
485 ptr += sizeof (struct in6_addr);
487 size_recalc += sizeof (struct in6_addr);
488 GNUNET_break (size_recalc == (size_t) ((char *) ptr - (char *) msg));
490 memcpy (he->h_addr_list[j], rd[i].data, sizeof (struct in6_addr));
494 he->h_addr_list[j] = NULL;
496 msgend = (struct GNUNET_MessageHeader *) ptr;
497 ptr += sizeof (struct GNUNET_MessageHeader);
498 size_recalc += sizeof (struct GNUNET_MessageHeader);
500 msgend->type = htons (GNUNET_MESSAGE_TYPE_W32RESOLVER_RESPONSE);
501 msgend->size = htons (sizeof (struct GNUNET_MessageHeader));
503 if ((char *) ptr - (char *) msg != size || size_recalc != size || size_recalc != ((char *) ptr - (char *) msg))
505 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error in WSAQUERYSETW size calc: expected %lu, got %lu (recalc %lu)\n", size, (unsigned long) ((char *) ptr - (char *) msg), size_recalc);
507 MarshallWSAQUERYSETW (qs, &rq->sc);
508 transmit (rq->client, &msg->header);
512 get_ip_from_hostname (struct GNUNET_SERVER_Client *client,
513 const wchar_t *name, int af, GUID sc)
521 if (IsEqualGUID (&SVCID_DNS_TYPE_A, &sc))
522 rtype = GNUNET_GNS_RECORD_A;
523 else if (IsEqualGUID (&SVCID_DNS_TYPE_NS, &sc))
524 rtype = GNUNET_GNS_RECORD_NS;
525 else if (IsEqualGUID (&SVCID_DNS_TYPE_CNAME, &sc))
526 rtype = GNUNET_GNS_RECORD_CNAME;
527 else if (IsEqualGUID (&SVCID_DNS_TYPE_SOA, &sc))
528 rtype = GNUNET_GNS_RECORD_SOA;
529 else if (IsEqualGUID (&SVCID_DNS_TYPE_PTR, &sc))
530 rtype = GNUNET_GNS_RECORD_PTR;
531 else if (IsEqualGUID (&SVCID_DNS_TYPE_MX, &sc))
532 rtype = GNUNET_GNS_RECORD_MX;
533 else if (IsEqualGUID (&SVCID_DNS_TYPE_TEXT, &sc))
534 rtype = GNUNET_GNS_RECORD_TXT;
535 else if (IsEqualGUID (&SVCID_DNS_TYPE_AAAA, &sc))
536 rtype = GNUNET_GNS_RECORD_AAAA;
537 else if (IsEqualGUID (&SVCID_DNS_TYPE_SRV, &sc))
538 rtype = GNUNET_GNS_RECORD_SRV;
539 else if (IsEqualGUID (&SVCID_INET_HOSTADDRBYNAME, &sc))
540 rtype = GNUNET_GNS_RECORD_A;
543 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
544 "Unknown GUID: %08X-%04X-%04X-%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X\n",
545 sc.Data1, sc.Data2, sc.Data3, sc.Data4[0], sc.Data4[1], sc.Data4[2],
546 sc.Data4[3], sc.Data4[4], sc.Data4[5], sc.Data4[6], sc.Data4[7]);
547 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
552 namelen = wcslen (name);
556 hostname = (char *) u16_to_u8 (name, namelen + 1, NULL, &strl);
558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
559 "W32 DNS resolver asked to look up %s for `%s'.\n",
560 af == AF_INET ? "IPv4" : af == AF_INET6 ? "IPv6" : "anything",
562 rq = GNUNET_malloc (sizeof (struct request));
566 if (rq->af != AF_INET && rq->af != AF_INET6)
570 rq->name = GNUNET_malloc ((namelen + 1) * sizeof (wchar_t));
571 memcpy (rq->name, name, (namelen + 1) * sizeof (wchar_t));
572 rq->u8name = hostname;
575 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
576 "Launching a lookup for client %p with rq %p\n",
579 if (NULL != GNUNET_GNS_lookup_zone (gns, hostname, zone, rtype,
580 GNUNET_YES, shorten_key, &process_ip_lookup_result, rq))
582 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
583 "Lookup launched, waiting for a reply\n");
584 GNUNET_SERVER_client_keep (client);
585 GNUNET_SERVER_receive_done (client, GNUNET_OK);
589 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
590 "Lookup was not, disconnecting the client\n");
593 GNUNET_free (rq->name);
597 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
602 * Handle GET-message.
605 * @param client identification of the client
606 * @param message the actual message
609 handle_get (void *cls, struct GNUNET_SERVER_Client *client,
610 const struct GNUNET_MessageHeader *message)
613 const struct GNUNET_W32RESOLVER_GetMessage *msg;
618 const wchar_t *hostname;
621 msize = ntohs (message->size);
622 if (msize < sizeof (struct GNUNET_W32RESOLVER_GetMessage))
625 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
628 msg = (const struct GNUNET_W32RESOLVER_GetMessage *) message;
629 size = msize - sizeof (struct GNUNET_W32RESOLVER_GetMessage);
630 af = ntohl (msg->af);
631 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got NBO GUID: %08X-%04X-%04X-%016llX\n",
632 msg->sc_data1, msg->sc_data2, msg->sc_data3, msg->sc_data4);
633 sc.Data1 = ntohl (msg->sc_data1);
634 sc.Data2 = ntohs (msg->sc_data2);
635 sc.Data3 = ntohs (msg->sc_data3);
636 data4 = GNUNET_ntohll (msg->sc_data4);
637 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got GUID: %08X-%04X-%04X-%016llX\n",
638 sc.Data1, sc.Data2, sc.Data3, data4);
639 for (i = 0; i < 8; i++)
640 sc.Data4[i] = 0xFF & (data4 >> ((7 - i) * 8));
642 hostname = (const wchar_t *) &msg[1];
643 if (hostname[size - 1] != L'\0')
645 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "name of length %u, not 0-terminated: %*S\n",
646 size, size, hostname);
648 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
651 get_ip_from_hostname (client, hostname, af, sc);
657 * Start up gns-helper-w32 service.
660 * @param server the initialized server
661 * @param cfg configuration to use
664 run (void *cls, struct GNUNET_SERVER_Handle *server,
665 const struct GNUNET_CONFIGURATION_Handle *cfg)
667 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
668 {&handle_get, NULL, GNUNET_MESSAGE_TYPE_W32RESOLVER_REQUEST, 0},
673 struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
674 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
675 struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
677 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
678 "ZONEKEY", &keyfile))
680 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
681 "No private key for root zone found, using default!\n");
686 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
688 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
689 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
690 GNUNET_CRYPTO_short_hash(&pkey,
691 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
694 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
695 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
696 "Using zone: %s!\n", &zonename);
697 GNUNET_CRYPTO_rsa_key_free(key);
699 GNUNET_free(keyfile);
702 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
703 "SHORTEN_ZONEKEY", &keyfile))
705 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
706 "No shorten key found!\n");
711 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
713 shorten_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
715 GNUNET_free(keyfile);
718 gns = GNUNET_GNS_connect (cfg);
722 GNUNET_SERVER_add_handlers (server, handlers);
723 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &do_shutdown,
730 * The main function for gns-helper-w32.
732 * @param argc number of arguments from the command line
733 * @param argv command line arguments
734 * @return 0 ok, 1 on error
737 main (int argc, char *const *argv)
743 GNUNET_SERVICE_run (argc, argv, "gns-helper-service-w32", GNUNET_SERVICE_OPTION_NONE,
744 &run, NULL)) ? 0 : 1;
749 /* end of gnunet-gns.c */