GNUnet  0.20.0
gnunet-service-gns.c File Reference

GNU Name System (main service) More...

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Data Structures

struct  ClientLookupHandle
 Handle to a lookup operation from client via API. More...
struct  GnsClient
 Information we track per connected client. More...
struct  GNS_TopLevelDomain
 Representation of a TLD, mapping the respective TLD string (e.g. More...


int GNS_find_tld (const char *tld_str, struct GNUNET_IDENTITY_PublicKey *pkey)
 Find GNS zone belonging to TLD tld. More...
const char * GNS_get_tld (const char *name)
 Obtain the TLD of the given name. More...
static void shutdown_task (void *cls)
 Task run during shutdown. More...
static void client_disconnect_cb (void *cls, struct GNUNET_SERVICE_Client *client, void *app_ctx)
 Called whenever a client is disconnected. More...
static void * client_connect_cb (void *cls, struct GNUNET_SERVICE_Client *client, struct GNUNET_MQ_Handle *mq)
 Add a client to our list of active clients. More...
static void send_lookup_response (void *cls, uint32_t rd_count, const struct GNUNET_GNSRECORD_Data *rd)
 Reply to client with the result from our lookup. More...
static int check_lookup (void *cls, const struct LookupMessage *l_msg)
 Checks a GNUNET_MESSAGE_TYPE_GNS_LOOKUP message. More...
static void handle_lookup (void *cls, const struct LookupMessage *sh_msg)
 Handle lookup requests from client. More...
static void read_service_conf (void *cls, const char *section, const char *option, const char *value)
 Reads the configuration and populates TLDs. More...
static void run (void *cls, const struct GNUNET_CONFIGURATION_Handle *c, struct GNUNET_SERVICE_Handle *service)
 Process GNS requests. More...
 GNUNET_SERVICE_MAIN ("gns", GNUNET_SERVICE_OPTION_NONE, &run, &client_connect_cb, &client_disconnect_cb, NULL, GNUNET_MQ_hd_var_size(lookup, GNUNET_MESSAGE_TYPE_GNS_LOOKUP, struct LookupMessage, NULL), GNUNET_MQ_handler_end())
 Define "main" method using service macro. More...


static struct GNUNET_DHT_Handledht_handle
 Our handle to the DHT. More...
static struct GNUNET_NAMECACHE_Handlenamecache_handle
 Our handle to the namecache service. More...
static int v6_enabled
 GNUNET_YES if ipv6 is supported More...
static int v4_enabled
 GNUNET_YES if ipv4 is supported More...
static struct GNUNET_STATISTICS_Handlestatistics
 Handle to the statistics service. More...
static struct GNS_TopLevelDomaintld_head
 Head of DLL of TLDs we map to GNS zones. More...
static struct GNS_TopLevelDomaintld_tail
 Tail of DLL of TLDs we map to GNS zones. More...

Detailed Description

GNU Name System (main service)

Martin Schanzenbach
Christian Grothoff

Definition in file gnunet-service-gns.c.

Function Documentation

◆ GNS_find_tld()

int GNS_find_tld ( const char *  tld_str,
struct GNUNET_IDENTITY_PublicKey pkey 

Find GNS zone belonging to TLD tld.

tld_strtop-level domain to look up
[out]pkeypublic key to set
GNUNET_YES if tld was found GNUNET_NO if not

Definition at line 178 of file gnunet-service-gns.c.

180 {
181  if ('\0' == *tld_str)
182  return GNUNET_NO;
183  for (struct GNS_TopLevelDomain *tld = tld_head;
184  NULL != tld;
185  tld = tld->next)
186  {
187  if (0 == strcasecmp (tld_str,
188  tld->tld))
189  {
190  *pkey = tld->pkey;
191  return GNUNET_YES;
192  }
193  }
194  if (GNUNET_OK ==
195  GNUNET_GNSRECORD_zkey_to_pkey (tld_str + 1,
196  pkey))
197  return GNUNET_YES; /* TLD string *was* the public key */
198  return GNUNET_NO;
199 }
static char * pkey
Public key of the zone to look in, in ASCII.
static struct GNS_TopLevelDomain * tld_head
Head of DLL of TLDs we map to GNS zones.
int GNUNET_GNSRECORD_zkey_to_pkey(const char *zkey, struct GNUNET_IDENTITY_PublicKey *pkey)
Convert an absolute domain name to the respective public key.
Representation of a TLD, mapping the respective TLD string (e.g.
struct GNS_TopLevelDomain * next
Kept in a DLL, as there are unlikely enough of these to warrant a hash map.

References GNUNET_GNSRECORD_zkey_to_pkey(), GNUNET_NO, GNUNET_OK, GNUNET_YES, pkey, GNS_TopLevelDomain::tld, and tld_head.

Referenced by handle_dns_request().

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◆ GNS_get_tld()

const char* GNS_get_tld ( const char *  name)

Obtain the TLD of the given name.

namea name
the part of name after the last ".", or name if name does not contain a "."

Definition at line 210 of file gnunet-service-gns.c.

211 {
212  const char *tld;
214  tld = strrchr (name,
215  (unsigned char) '.');
216  if (NULL == tld)
217  tld = name;
218  else
219  tld++; /* skip the '.' */
220  return tld;
221 }
const char * name

References name, and GNS_TopLevelDomain::tld.

Referenced by handle_dns_request(), handle_gns_redirect_result(), and recursive_gns2dns_resolution().

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◆ shutdown_task()

static void shutdown_task ( void *  cls)

Task run during shutdown.

clsunused, NULL

Definition at line 230 of file gnunet-service-gns.c.

231 {
232  struct GNS_TopLevelDomain *tld;
234  (void) cls;
236  "Shutting down!\n");
239  if (NULL != statistics)
240  {
242  GNUNET_NO);
243  statistics = NULL;
244  }
245  if (NULL != namecache_handle)
246  {
248  namecache_handle = NULL;
249  }
250  if (NULL != dht_handle)
251  {
253  dht_handle = NULL;
254  }
255  while (NULL != (tld = tld_head))
256  {
258  tld_tail,
259  tld);
260  GNUNET_free (tld->tld);
261  GNUNET_free (tld);
262  }
263 }
static struct GNS_TopLevelDomain * tld_tail
Tail of DLL of TLDs we map to GNS zones.
static struct GNUNET_STATISTICS_Handle * statistics
Handle to the statistics service.
static struct GNUNET_DHT_Handle * dht_handle
Our handle to the DHT.
static struct GNUNET_NAMECACHE_Handle * namecache_handle
Our handle to the namecache service.
void GNS_interceptor_done()
Disconnect from interceptor.
void GNS_resolver_done()
Shutdown resolver.
void GNUNET_DHT_disconnect(struct GNUNET_DHT_Handle *handle)
Shutdown connection with the DHT service.
Definition: dht_api.c:1062
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
#define GNUNET_log(kind,...)
#define GNUNET_free(ptr)
Wrapper around free.
void GNUNET_NAMECACHE_disconnect(struct GNUNET_NAMECACHE_Handle *h)
Disconnect from the namecache service (and free associated resources).
void GNUNET_STATISTICS_destroy(struct GNUNET_STATISTICS_Handle *h, int sync_first)
Destroy a handle (free all state associated with it).
char * tld
Top-level domain as a string, including leading ".".

References dht_handle, GNS_interceptor_done(), GNS_resolver_done(), GNUNET_CONTAINER_DLL_remove, GNUNET_DHT_disconnect(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_log, GNUNET_NAMECACHE_disconnect(), GNUNET_NO, GNUNET_STATISTICS_destroy(), namecache_handle, statistics, GNS_TopLevelDomain::tld, tld_head, and tld_tail.

Referenced by run().

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◆ client_disconnect_cb()

static void client_disconnect_cb ( void *  cls,
struct GNUNET_SERVICE_Client client,
void *  app_ctx 

Called whenever a client is disconnected.

clientidentification of the client

Definition at line 274 of file gnunet-service-gns.c.

277 {
278  struct ClientLookupHandle *clh;
279  struct GnsClient *gc = app_ctx;
281  (void) cls;
283  "Client %p disconnected\n",
284  client);
285  while (NULL != (clh = gc->clh_head))
286  {
287  if (NULL != clh->lookup)
290  gc->clh_tail,
291  clh);
292  GNUNET_free (clh);
293  }
294  GNUNET_free (gc);
295 }
void GNS_resolver_lookup_cancel(struct GNS_ResolverHandle *rh)
Cancel active resolution (i.e.
Handle to a lookup operation from client via API.
struct GNS_ResolverHandle * lookup
Active handle for the lookup.
Information we track per connected client.
struct ClientLookupHandle * clh_tail
Tail of the DLL.
struct ClientLookupHandle * clh_head
Head of the DLL.
struct GNUNET_SERVICE_Client * client
The client.

References GnsClient::clh_head, GnsClient::clh_tail, GnsClient::client, GNS_resolver_lookup_cancel(), GNUNET_CONTAINER_DLL_remove, GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_log, and ClientLookupHandle::lookup.

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◆ client_connect_cb()

static void* client_connect_cb ( void *  cls,
struct GNUNET_SERVICE_Client client,
struct GNUNET_MQ_Handle mq 

Add a client to our list of active clients.

clientclient to add
mqmessage queue for client
internal namestore client structure for this client

Definition at line 307 of file gnunet-service-gns.c.

310 {
311  struct GnsClient *gc;
313  (void) cls;
315  "Client %p connected\n",
316  client);
317  gc = GNUNET_new (struct GnsClient);
318  gc->client = client;
319  gc->mq = mq;
320  return gc;
321 }
struct GNUNET_MQ_Handle * mq
Definition: 003.c:5
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_MQ_Handle * mq
The MQ.

References GnsClient::client, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_new, mq, and GnsClient::mq.

◆ send_lookup_response()

static void send_lookup_response ( void *  cls,
uint32_t  rd_count,
const struct GNUNET_GNSRECORD_Data rd 

Reply to client with the result from our lookup.

clsthe closure (our client lookup handle)
rd_countthe number of records in rd
rdthe record data

Definition at line 332 of file gnunet-service-gns.c.

335 {
336  struct ClientLookupHandle *clh = cls;
337  struct GnsClient *gc = clh->gc;
338  struct GNUNET_MQ_Envelope *env;
339  struct LookupResultMessage *rmsg;
340  ssize_t len;
343  "Sending LOOKUP_RESULT message with %u results\n",
344  (unsigned int) rd_count);
346  rd);
347  if (len < 0)
348  {
349  GNUNET_break (0);
351  return;
352  }
353  if (len > UINT16_MAX - sizeof(*rmsg))
354  {
355  GNUNET_break (0);
357  return;
358  }
359  env = GNUNET_MQ_msg_extra (rmsg,
360  len,
362  rmsg->id = clh->request_id;
363  rmsg->rd_count = htonl (rd_count);
364  GNUNET_assert (len ==
366  rd,
367  len,
368  (char *) &rmsg[1]));
370  env);
372  gc->clh_tail,
373  clh);
374  GNUNET_free (clh);
376  "Completed lookups", 1,
377  GNUNET_NO);
379  "Records resolved",
380  rd_count,
381  GNUNET_NO);
382 }
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
uint16_t len
length of data (which is always a uint32_t, but presumably this can be used to specify that fewer byt...
static unsigned int rd_count
Number of records for currently parsed set.
static struct GNUNET_GNSRECORD_Data rd[50]
The record data under a single label.
ssize_t GNUNET_GNSRECORD_records_serialize(unsigned int rd_count, const struct GNUNET_GNSRECORD_Data *rd, size_t dest_size, char *dest)
Serialize the given records to the given destination buffer.
GNUNET_NETWORK_STRUCT_END ssize_t GNUNET_GNSRECORD_records_get_size(unsigned int rd_count, const struct GNUNET_GNSRECORD_Data *rd)
Calculate how many bytes we will need to serialize the given records.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
Definition: mq.c:304
#define GNUNET_MQ_msg_extra(mvar, esize, type)
Allocate an envelope, with extra space allocated after the space needed by the message struct.
Definition: gnunet_mq_lib.h:63
Service response to name resolution request from client.
void GNUNET_SERVICE_client_drop(struct GNUNET_SERVICE_Client *c)
Ask the server to disconnect from the given client.
Definition: service.c:2330
struct GNUNET_MQ_Handle * GNUNET_SERVICE_client_get_mq(struct GNUNET_SERVICE_Client *c)
Obtain the message queue of c.
Definition: service.c:2443
void GNUNET_STATISTICS_update(struct GNUNET_STATISTICS_Handle *handle, const char *name, int64_t delta, int make_persistent)
Set statistic value for the peer.
struct GnsClient * gc
Client handle.
uint32_t request_id
request id
Message from GNS service to client: new results.
Definition: gns.h:80
uint32_t id
Unique identifier for this request (for key collisions).
Definition: gns.h:89
uint32_t rd_count
The number of records contained in response.
Definition: gns.h:96

References GnsClient::clh_head, GnsClient::clh_tail, GnsClient::client, env, ClientLookupHandle::gc, GNUNET_assert, GNUNET_break, GNUNET_CONTAINER_DLL_remove, GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_GNSRECORD_records_get_size(), GNUNET_GNSRECORD_records_serialize(), GNUNET_log, GNUNET_MESSAGE_TYPE_GNS_LOOKUP_RESULT, GNUNET_MQ_msg_extra, GNUNET_MQ_send(), GNUNET_NO, GNUNET_SERVICE_client_drop(), GNUNET_SERVICE_client_get_mq(), GNUNET_STATISTICS_update(), LookupResultMessage::id, len, rd, LookupResultMessage::rd_count, rd_count, ClientLookupHandle::request_id, and statistics.

Referenced by handle_lookup().

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◆ check_lookup()

static int check_lookup ( void *  cls,
const struct LookupMessage l_msg 


clsclient sending the message
l_msgmessage of type struct LookupMessage
GNUNET_OK if l_msg is well-formed

Definition at line 393 of file gnunet-service-gns.c.

395 {
396  size_t nlen;
397  size_t klen;
399  (void) cls;
400  klen = ntohl (l_msg->key_len);
401  nlen = ntohs (l_msg->header.size) - sizeof(struct LookupMessage) - klen;
403  {
404  GNUNET_break (0);
405  return GNUNET_SYSERR;
406  }
407  return GNUNET_OK;
408 }
Maximum length of a name in DNS.
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format.
Message from client to GNS service to lookup records.
Definition: gns.h:37
uint32_t key_len
Length of the zone key.
Definition: gns.h:69
struct GNUNET_MessageHeader header
Definition: gns.h:41

References GNUNET_break, GNUNET_DNSPARSER_MAX_NAME_LENGTH, GNUNET_OK, GNUNET_SYSERR, LookupMessage::header, LookupMessage::key_len, and GNUNET_MessageHeader::size.

◆ handle_lookup()

static void handle_lookup ( void *  cls,
const struct LookupMessage sh_msg 

Handle lookup requests from client.

clsthe closure
sh_msgthe message

Definition at line 418 of file gnunet-service-gns.c.

420 {
421  struct GnsClient *gc = cls;
422  struct ClientLookupHandle *clh;
424  const char *name;
425  size_t key_len;
426  size_t read;
429  key_len = ntohl (sh_msg->key_len);
430  clh = GNUNET_new (struct ClientLookupHandle);
432  gc->clh_tail,
433  clh);
434  clh->gc = gc;
435  clh->request_id = sh_msg->id;
436  if ((GNUNET_SYSERR ==
438  key_len,
439  &zone,
440  &read)) ||
441  (read != key_len))
442  {
444  "LOOKUP: Failed to read zone key!");
446  0,
447  NULL);
448  return;
449  }
450  name = (const char *) &sh_msg[1] + key_len;
452  "Received LOOKUP `%s' message\n",
453  name);
454  if ((GNUNET_DNSPARSER_TYPE_A == ntohl (sh_msg->type)) &&
455  (GNUNET_OK != v4_enabled))
456  {
458  "LOOKUP: Query for A record but AF_INET not supported!");
460  0,
461  NULL);
462  return;
463  }
464  if ((GNUNET_DNSPARSER_TYPE_AAAA == ntohl (sh_msg->type)) &&
465  (GNUNET_OK != v6_enabled))
466  {
468  "LOOKUP: Query for AAAA record but AF_INET6 not supported!");
470  0,
471  NULL);
472  return;
473  }
475  ntohl (sh_msg->type),
476  name,
477  (enum GNUNET_GNS_LocalOptions) ntohs (
478  sh_msg->options),
479  ntohs (sh_msg->recursion_depth_limit),
480  &send_lookup_response, clh);
482  "Lookup attempts",
483  1, GNUNET_NO);
484 }
static char * zone
Name of the zone being managed.
static void send_lookup_response(void *cls, uint32_t rd_count, const struct GNUNET_GNSRECORD_Data *rd)
Reply to client with the result from our lookup.
static int v4_enabled
GNUNET_YES if ipv4 is supported
static int v6_enabled
GNUNET_YES if ipv6 is supported
struct GNS_ResolverHandle * GNS_resolver_lookup(const struct GNUNET_IDENTITY_PublicKey *zone, uint32_t record_type, const char *name, enum GNUNET_GNS_LocalOptions options, uint16_t recursion_depth_limit, GNS_ResultProcessor proc, void *proc_cls)
Lookup of a record in a specific zone calls lookup result processor on result.
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
Options for the GNS lookup.
enum GNUNET_GenericReturnValue GNUNET_IDENTITY_read_public_key_from_buffer(const void *buffer, size_t len, struct GNUNET_IDENTITY_PublicKey *key, size_t *kb_read)
Reads a GNUNET_IDENTITY_PublicKey from a compact buffer.
Definition: identity_api.c:865
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2249
An identity key as per LSD0001.
int16_t options
Local options for where to look for results (an enum GNUNET_GNS_LocalOptions in NBO).
Definition: gns.h:52
uint32_t id
Unique identifier for this request (for key collisions).
Definition: gns.h:46
uint16_t recursion_depth_limit
Recursion depth limit, i.e.
Definition: gns.h:59
int32_t type
the type of record to look up
Definition: gns.h:64

References GnsClient::clh_head, GnsClient::clh_tail, GnsClient::client, ClientLookupHandle::gc, GNS_resolver_lookup(), GNUNET_CONTAINER_DLL_insert, GNUNET_DNSPARSER_TYPE_A, GNUNET_DNSPARSER_TYPE_AAAA, GNUNET_ERROR_TYPE_DEBUG, GNUNET_IDENTITY_read_public_key_from_buffer(), GNUNET_log, GNUNET_new, GNUNET_NO, GNUNET_OK, GNUNET_SERVICE_client_continue(), GNUNET_STATISTICS_update(), GNUNET_SYSERR, LookupMessage::id, LookupMessage::key_len, ClientLookupHandle::lookup, name, LookupMessage::options, LookupMessage::recursion_depth_limit, ClientLookupHandle::request_id, send_lookup_response(), statistics, LookupMessage::type, v4_enabled, v6_enabled, and zone.

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◆ read_service_conf()

static void read_service_conf ( void *  cls,
const char *  section,
const char *  option,
const char *  value 

Reads the configuration and populates TLDs.

sectionname of section in config, always "gns"
optionname of the option, TLDs start with "."
valuevalue for the option, public key for TLDs

Definition at line 496 of file gnunet-service-gns.c.

500 {
502  struct GNS_TopLevelDomain *tld;
504  (void) cls;
505  (void) section;
506  if (option[0] != '.')
507  return;
508  if (GNUNET_OK !=
510  strlen (value),
511  &pk,
512  sizeof(pk)))
513  {
515  section,
516  option,
517  _ (
518  "Properly base32-encoded public key required"));
519  return;
520  }
521  tld = GNUNET_new (struct GNS_TopLevelDomain);
522  tld->tld = GNUNET_strdup (&option[1]);
523  tld->pkey = pk;
525  tld_tail,
526  tld);
527 }
struct GNUNET_IDENTITY_PrivateKey pk
Private key from command line option, or NULL.
static char * value
Value of the record to add/remove.
void GNUNET_log_config_invalid(enum GNUNET_ErrorType kind, const char *section, const char *option, const char *required)
Log error message about invalid configuration option value.
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
enum GNUNET_GenericReturnValue GNUNET_STRINGS_string_to_data(const char *enc, size_t enclen, void *out, size_t out_size)
Convert CrockfordBase32 encoding back to data.
Definition: strings.c:788
#define _(String)
GNU gettext support macro.
Definition: platform.h:178

References _, GNUNET_CONTAINER_DLL_insert, GNUNET_ERROR_TYPE_ERROR, GNUNET_log_config_invalid(), GNUNET_new, GNUNET_OK, GNUNET_strdup, GNUNET_STRINGS_string_to_data(), pk, GNS_TopLevelDomain::tld, tld_head, tld_tail, and value.

Referenced by run().

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◆ run()

static void run ( void *  cls,
const struct GNUNET_CONFIGURATION_Handle c,
struct GNUNET_SERVICE_Handle service 

Process GNS requests.

serverthe initialized server
cconfiguration to use

Definition at line 538 of file gnunet-service-gns.c.

541 {
542  unsigned long long max_parallel_bg_queries = 16;
545  "gns",
547  NULL);
548  v6_enabled = GNUNET_NETWORK_test_pf (PF_INET6);
551  if (NULL == namecache_handle)
552  {
554  _ ("Failed to connect to the namecache!\n"));
556  return;
557  }
558  if (GNUNET_OK ==
560  "gns",
562  &max_parallel_bg_queries))
563  {
565  "Number of allowed parallel background queries: %llu\n",
566  max_parallel_bg_queries);
567  }
569  (unsigned int) max_parallel_bg_queries);
570  if (NULL == dht_handle)
571  {
573  _ ("Could not connect to DHT!\n"));
575  NULL);
576  return;
577  }
579  dht_handle,
580  c,
581  max_parallel_bg_queries);
582  if ((GNUNET_YES ==
584  "gns",
585  "INTERCEPT_DNS")) &&
588  {
589  GNUNET_break (0);
591  NULL);
592  return;
593  }
595  c);
597  NULL);
598 }
static void shutdown_task(void *cls)
Task run during shutdown.
static void read_service_conf(void *cls, const char *section, const char *option, const char *value)
Reads the configuration and populates TLDs.
int GNS_interceptor_init(const struct GNUNET_CONFIGURATION_Handle *c)
Initialize DNS interceptor.
void GNS_resolver_init(struct GNUNET_NAMECACHE_Handle *nc, struct GNUNET_DHT_Handle *dht, const struct GNUNET_CONFIGURATION_Handle *c, unsigned long long max_bg_queries)
Initialize the resolver.
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_number(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, unsigned long long *number)
Get a configuration value that should be a number.
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_yesno(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option)
Get a configuration value that should be in a set of "YES" or "NO".
void GNUNET_CONFIGURATION_iterate_section_values(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, GNUNET_CONFIGURATION_Iterator iter, void *iter_cls)
Iterate over values of a section in the configuration.
struct GNUNET_DHT_Handle * GNUNET_DHT_connect(const struct GNUNET_CONFIGURATION_Handle *cfg, unsigned int ht_len)
Initialize the connection with the DHT service.
Definition: dht_api.c:1039
struct GNUNET_NAMECACHE_Handle * GNUNET_NAMECACHE_connect(const struct GNUNET_CONFIGURATION_Handle *cfg)
Connect to the namecache service.
enum GNUNET_GenericReturnValue GNUNET_NETWORK_test_pf(int pf)
Test if the given protocol family is supported by this system.
Definition: network.c:80
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:562
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1299
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_shutdown(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run on shutdown, that is when a CTRL-C signal is received,...
Definition: scheduler.c:1334
struct GNUNET_STATISTICS_Handle * GNUNET_STATISTICS_create(const char *subsystem, const struct GNUNET_CONFIGURATION_Handle *cfg)
Get handle for the statistics service.

References _, dht_handle, GNS_interceptor_init(), GNS_resolver_init(), GNUNET_break, GNUNET_CONFIGURATION_get_value_number(), GNUNET_CONFIGURATION_get_value_yesno(), GNUNET_CONFIGURATION_iterate_section_values(), GNUNET_DHT_connect(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_log, GNUNET_NAMECACHE_connect(), GNUNET_NETWORK_test_pf(), GNUNET_OK, GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_add_shutdown(), GNUNET_SCHEDULER_shutdown(), GNUNET_STATISTICS_create(), GNUNET_SYSERR, GNUNET_YES, namecache_handle, read_service_conf(), shutdown_task(), statistics, v4_enabled, and v6_enabled.

Here is the call graph for this function:


GNUNET_MQ_hd_var_size(lookup, GNUNET_MESSAGE_TYPE_GNS_LOOKUP, struct LookupMessage, NULL)  ,

Define "main" method using service macro.

Variable Documentation

◆ dht_handle

struct GNUNET_DHT_Handle* dht_handle

Our handle to the DHT.

Definition at line 137 of file gnunet-service-gns.c.

Referenced by run(), and shutdown_task().

◆ namecache_handle

struct GNUNET_NAMECACHE_Handle* namecache_handle

Our handle to the namecache service.

Definition at line 142 of file gnunet-service-gns.c.

Referenced by run(), and shutdown_task().

◆ v6_enabled

int v6_enabled

GNUNET_YES if ipv6 is supported

Definition at line 147 of file gnunet-service-gns.c.

Referenced by handle_lookup(), and run().

◆ v4_enabled

int v4_enabled

GNUNET_YES if ipv4 is supported

Definition at line 152 of file gnunet-service-gns.c.

Referenced by handle_lookup(), and run().

◆ statistics

struct GNUNET_STATISTICS_Handle* statistics

Handle to the statistics service.

Definition at line 157 of file gnunet-service-gns.c.

Referenced by handle_lookup(), run(), send_lookup_response(), and shutdown_task().

◆ tld_head

struct GNS_TopLevelDomain* tld_head

Head of DLL of TLDs we map to GNS zones.

Definition at line 162 of file gnunet-service-gns.c.

Referenced by GNS_find_tld(), read_service_conf(), and shutdown_task().

◆ tld_tail

struct GNS_TopLevelDomain* tld_tail

Tail of DLL of TLDs we map to GNS zones.

Definition at line 167 of file gnunet-service-gns.c.

Referenced by read_service_conf(), and shutdown_task().