2 This file is part of GNUnet
3 (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 2, or (at your
8 option) any later version.
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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.
22 * @file transport/plugin_transport_template.c
23 * @brief template for a new transport service
24 * @author Christian Grothoff
28 #include "gnunet_protocols.h"
29 #include "gnunet_connection_lib.h"
30 #include "gnunet_server_lib.h"
31 #include "gnunet_service_lib.h"
32 #include "gnunet_statistics_service.h"
33 #include "gnunet_transport_service.h"
34 #include "gnunet_resolver_service.h"
35 #include "plugin_transport.h"
36 #include "microhttpd.h"
37 #include <curl/curl.h>
39 #define DEBUG_HTTP GNUNET_NO
42 * Text of the response sent back after the last bytes of a PUT
43 * request have been received (just to formally obey the HTTP
46 #define HTTP_PUT_RESPONSE "Thank you!"
49 * After how long do we expire an address that we
50 * learned from another peer if it is not reconfirmed
53 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
56 * Page returned if request invalid
58 #define HTTP_ERROR_RESPONSE "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\"><HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD><BODY><H1>Not Found</H1>The requested URL was not found on this server.<P><HR><ADDRESS></ADDRESS></BODY></HTML>"
62 * Encapsulation of all of the state of the plugin.
68 * Session handle for connections.
74 * Stored in a linked list.
79 * Pointer to the global plugin struct.
81 struct Plugin *plugin;
84 * Continuation function to call once the transmission buffer
85 * has again space available. NULL if there is no
86 * continuation to call.
88 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
91 * Closure for transmit_cont.
93 void *transmit_cont_cls;
96 * To whom are we talking to (set to our identity
97 * if we are still waiting for the welcome message)
99 struct GNUNET_PeerIdentity sender;
107 * Sender's ip address to distinguish between incoming connections
112 * Sender's ip address to distinguish between incoming connections
114 struct sockaddr_in * addr;
117 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
119 unsigned int is_client;
122 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
124 unsigned int is_active;
127 * At what time did we reset last_received last?
129 struct GNUNET_TIME_Absolute last_quota_update;
132 * How many bytes have we received since the "last_quota_update"
135 uint64_t last_received;
138 * Number of bytes per ms that this peer is allowed
146 * Encapsulation of all of the state of the plugin.
153 struct GNUNET_TRANSPORT_PluginEnvironment *env;
156 * List of open sessions.
158 struct Session *sessions;
161 * Number of active sessions
164 unsigned int session_count;
169 * Daemon for listening for new IPv4 connections.
171 static struct MHD_Daemon *http_daemon_v4;
174 * Daemon for listening for new IPv6connections.
176 static struct MHD_Daemon *http_daemon_v6;
179 * Our primary task for http daemon handling IPv4 connections
181 static GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
184 * Our primary task for http daemon handling IPv6 connections
186 static GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
190 * Information about this plugin
192 static struct Plugin *plugin;
197 static CURLM *multi_handle;
202 static char * hostname;
205 * Our ASCII encoded, hashed peer identity
206 * This string is used to distinguish between connections and is added to the urls
208 static struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
212 * Finds a http session in our linked list using peer identity as a key
213 * @param peer peeridentity
214 * @return http session corresponding to peer identity
216 static struct Session * find_session_by_pi( const struct GNUNET_PeerIdentity *peer )
218 struct Session * cur;
219 GNUNET_HashCode hc_peer;
220 GNUNET_HashCode hc_current;
222 cur = plugin->sessions;
223 hc_peer = peer->hashPubKey;
226 hc_current = cur->sender.hashPubKey;
227 if ( 0 == GNUNET_CRYPTO_hash_cmp( &hc_peer, &hc_current))
229 cur = plugin->sessions->next;
236 * Finds a http session in our linked list using peer identity as a key
237 * @param peer peeridentity
238 * @return http session corresponding to peer identity
240 static struct Session * find_session_by_ip( char * ip )
243 struct Session * cur;
245 cur = plugin->sessions;
248 hc_current = cur->sender.hashPubKey;
249 if ( 0 == GNUNET_CRYPTO_hash_cmp( &hc_peer, &hc_current))
251 cur = plugin->sessions->next;
259 * Creates a http session in our linked list by peer identity
260 * Only peer is set here, all other fields have to be set by calling method
261 * @param peer peeridentity
262 * @return created http session
264 static struct Session * create_session_by_pi( const struct GNUNET_PeerIdentity *peer )
266 struct Session * cur;
267 struct Session * last_in_list;
268 /* Create a new session object */
269 cur = GNUNET_malloc (sizeof (struct Session));
270 memcpy( &(cur->sender), peer, sizeof( struct GNUNET_PeerIdentity ) );
274 /* Insert into linked list */
275 last_in_list = plugin->sessions;
276 while (last_in_list->next != NULL)
278 last_in_list = last_in_list->next;
280 last_in_list->next = cur;
287 * Creates a http session in our linked list by ip address
288 * Only ip is set here, all other fields have to be set by calling method
289 * @param peer peeridentity
290 * @return created http session
292 static struct Session * create_session_by_ip ( struct sockaddr_in * addr )
294 struct Session * cur;
295 struct Session * last_in_list;
296 /* Create a new session object */
297 cur = GNUNET_malloc (sizeof (struct Session));
298 // FIXME: memcpy( &(cur->ip), , sizeof( struct GNUNET_PeerIdentity ) );
302 /* Insert into linked list */
303 last_in_list = plugin->sessions;
304 while (last_in_list->next != NULL)
306 last_in_list = last_in_list->next;
308 last_in_list->next = cur;
315 * Callback called by MHD when a connection is terminated
317 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
321 cs = *httpSessionCache;
324 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->sender));
325 /* session set to inactive */
326 cs->is_active = GNUNET_NO;
329 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Not accepted connection was terminated\n");
334 * Check if we are allowed to connect to the given IP.
337 acceptPolicyCallback (void *cls,
338 const struct sockaddr *addr, socklen_t addr_len)
340 /* Every connection is accepted, nothing more to do here */
346 * Process GET or PUT request received via MHD. For
347 * GET, queue response that will send back our pending
348 * messages. For PUT, process incoming data and send
349 * to GNUnet core. In either case, check if a session
350 * already exists and create a new one if not.
353 accessHandlerCallback (void *cls,
354 struct MHD_Connection *session,
358 const char *upload_data,
359 size_t * upload_data_size, void **httpSessionCache)
361 struct MHD_Response *response;
363 struct Session * cs_temp;
364 const union MHD_ConnectionInfo * conn_info;
365 struct sockaddr_in *addrin;
366 struct sockaddr_in6 *addrin6;
367 char * address = NULL;
368 struct GNUNET_PeerIdentity pi_in;
371 if ( NULL == *httpSessionCache)
373 /* check url for peer identity */
374 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
375 if ( GNUNET_SYSERR == res )
377 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident\n");
378 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
379 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
380 MHD_destroy_response (response);
384 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
385 /* Incoming IPv4 connection */
386 if ( AF_INET == conn_info->client_addr->sin_family)
388 address = GNUNET_malloc (INET_ADDRSTRLEN);
389 addrin = conn_info->client_addr;
390 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
392 /* Incoming IPv6 connection */
393 if ( AF_INET6 == conn_info->client_addr->sin_family)
395 address = GNUNET_malloc (INET6_ADDRSTRLEN);
396 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
397 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
400 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has an incoming `%s' request from peer `%s' from `[%s]:%u'\n",method, GNUNET_h2s(&pi_in.hashPubKey),address,conn_info->client_addr->sin_port);
402 /* find session for address */
404 if (plugin->session_count > 0)
406 cs = plugin->sessions;
410 /* Comparison based on ip address */
411 // res = (0 == memcmp(&(conn_info->client_addr->sin_addr),&(cs->addr->sin_addr), sizeof (struct in_addr))) ? GNUNET_YES : GNUNET_NO;
413 /* Comparison based on ip address, port number and address family */
414 // res = (0 == memcmp((conn_info->client_addr),(cs->addr), sizeof (struct sockaddr_in))) ? GNUNET_YES : GNUNET_NO;
416 /* Comparison based on PeerIdentity */
417 res = (0 == memcmp(&pi_in,&(cs->sender), sizeof (struct GNUNET_PeerIdentity))) ? GNUNET_YES : GNUNET_NO;
419 if ( GNUNET_YES == res)
421 /* existing session for this address found */
422 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session `%s' found\n",address);
431 /* create new session object */
432 cs = GNUNET_malloc ( sizeof( struct Session) );
433 cs->addr = GNUNET_malloc ( sizeof (struct sockaddr_in) );
436 memcpy(cs->addr, conn_info->client_addr, sizeof (struct sockaddr_in));
437 memcpy(&cs->sender, &pi_in, sizeof (struct GNUNET_PeerIdentity));
439 cs->is_active = GNUNET_YES;
441 /* Insert session into linked list */
442 if ( plugin->sessions == NULL)
444 plugin->sessions = cs;
445 plugin->session_count = 1;
447 cs_temp = plugin->sessions;
448 while ( cs_temp->next != NULL )
450 cs_temp = cs_temp->next;
455 plugin->session_count++;
457 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session `%s' inserted, count %u \n", address, plugin->session_count);
460 if (*httpSessionCache == NULL)
461 *httpSessionCache = cs;
464 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session already known");
466 /* Is it a PUT or a GET request */
467 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
469 /* PUT method here */
470 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got PUT Request with size %lu \n",(*upload_data_size));
471 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
472 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"PUT Request: `%s'\n",upload_data);
474 *upload_data_size = 0;
475 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
476 MHD_queue_response (session, MHD_HTTP_OK, response);
477 MHD_destroy_response (response);
479 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
481 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
482 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
484 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
485 MHD_queue_response (session, MHD_HTTP_OK, response);
486 MHD_destroy_response (response);
494 * Call MHD to process pending requests and then go back
495 * and schedule the next run.
497 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
500 * Function that queries MHD's select sets and
501 * starts the task waiting for them.
503 static GNUNET_SCHEDULER_TaskIdentifier
504 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
506 GNUNET_SCHEDULER_TaskIdentifier ret;
510 struct GNUNET_NETWORK_FDSet *wrs;
511 struct GNUNET_NETWORK_FDSet *wws;
512 struct GNUNET_NETWORK_FDSet *wes;
514 unsigned long long timeout;
516 struct GNUNET_TIME_Relative tv;
521 wrs = GNUNET_NETWORK_fdset_create ();
522 wes = GNUNET_NETWORK_fdset_create ();
523 wws = GNUNET_NETWORK_fdset_create ();
525 GNUNET_assert (MHD_YES ==
526 MHD_get_fdset (daemon_handle,
531 haveto = MHD_get_timeout (daemon_handle, &timeout);
532 if (haveto == MHD_YES)
533 tv.value = (uint64_t) timeout;
535 tv = GNUNET_TIME_UNIT_FOREVER_REL;
536 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
537 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
538 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
539 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
540 GNUNET_SCHEDULER_PRIORITY_HIGH,
541 GNUNET_SCHEDULER_NO_TASK,
547 GNUNET_NETWORK_fdset_destroy (wrs);
548 GNUNET_NETWORK_fdset_destroy (wws);
549 GNUNET_NETWORK_fdset_destroy (wes);
554 * Call MHD to process pending requests and then go back
555 * and schedule the next run.
558 http_daemon_run (void *cls,
559 const struct GNUNET_SCHEDULER_TaskContext *tc)
561 struct MHD_Daemon *daemon_handle = cls;
563 if (daemon_handle == http_daemon_v4)
564 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
566 if (daemon_handle == http_daemon_v6)
567 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
569 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
574 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
575 if (daemon_handle == http_daemon_v4)
576 http_task_v4 = http_daemon_prepare (daemon_handle);
577 if (daemon_handle == http_daemon_v6)
578 http_task_v6 = http_daemon_prepare (daemon_handle);
582 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
586 fprintf(stdout, "*** Read callback: size %u, size nmemb: %u \n", size, nmemb);
587 retcode = fread(ptr, size, nmemb, stream);
594 * Function that can be used by the transport service to transmit
595 * a message using the plugin.
598 * @param target who should receive this message
599 * @param priority how important is the message
600 * @param msgbuf the message to transmit
601 * @param msgbuf_size number of bytes in 'msgbuf'
602 * @param timeout when should we time out
603 * @param session which session must be used (or NULL for "any")
604 * @param addr the address to use (can be NULL if the plugin
605 * is "on its own" (i.e. re-use existing TCP connection))
606 * @param addrlen length of the address in bytes
607 * @param force_address GNUNET_YES if the plugin MUST use the given address,
608 * otherwise the plugin may use other addresses or
609 * existing connections (if available)
610 * @param cont continuation to call once the message has
611 * been transmitted (or if the transport is ready
612 * for the next transmission call; or if the
613 * peer disconnected...)
614 * @param cont_cls closure for cont
615 * @return number of bytes used (on the physical network, with overheads);
616 * -1 on hard errors (i.e. address invalid); 0 is a legal value
617 * and does NOT mean that the message was not transmitted (DV)
620 template_plugin_send (void *cls,
621 const struct GNUNET_PeerIdentity *
625 unsigned int priority,
626 struct GNUNET_TIME_Relative timeout,
627 struct Session *session,
631 GNUNET_TRANSPORT_TransmitContinuation
632 cont, void *cont_cls)
636 /* struct Plugin *plugin = cls; */
640 /* find session for peer */
641 ses = find_session_by_pi (target);
642 if ( ses == NULL) create_session_by_pi (target);
644 char *url = "http://localhost:12389";
646 curl_handle = curl_easy_init();
647 if( NULL == curl_handle)
649 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
652 curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
653 curl_easy_setopt(curl_handle, CURLOPT_READFUNCTION, read_callback);
654 curl_easy_setopt(curl_handle, CURLOPT_UPLOAD, 1L);
655 curl_easy_setopt(curl_handle, CURLOPT_PUT, 1L);
656 curl_easy_setopt(curl_handle, CURLOPT_URL, url);
657 curl_easy_setopt(curl_handle, CURLOPT_READDATA, msgbuf);
658 curl_easy_setopt(curl_handle, CURLOPT_INFILESIZE_LARGE,
659 (curl_off_t)msgbuf_size);
669 * Function that can be used to force the plugin to disconnect
670 * from the given peer and cancel all previous transmissions
671 * (and their continuationc).
674 * @param target peer from which to disconnect
677 template_plugin_disconnect (void *cls,
678 const struct GNUNET_PeerIdentity *target)
680 // struct Plugin *plugin = cls;
686 * Convert the transports address to a nice, human-readable
690 * @param type name of the transport that generated the address
691 * @param addr one of the addresses of the host, NULL for the last address
692 * the specific address format depends on the transport
693 * @param addrlen length of the address
694 * @param numeric should (IP) addresses be displayed in numeric form?
695 * @param timeout after how long should we give up?
696 * @param asc function to call on each string
697 * @param asc_cls closure for asc
700 template_plugin_address_pretty_printer (void *cls,
705 struct GNUNET_TIME_Relative timeout,
706 GNUNET_TRANSPORT_AddressStringCallback
715 * Another peer has suggested an address for this
716 * peer and transport plugin. Check that this could be a valid
717 * address. If so, consider adding it to the list
721 * @param addr pointer to the address
722 * @param addrlen length of addr
723 * @return GNUNET_OK if this is a plausible address for this peer
727 template_plugin_address_suggested (void *cls,
728 void *addr, size_t addrlen)
730 /* struct Plugin *plugin = cls; */
732 /* check if the address is plausible; if so,
733 add it to our list! */
739 * Function called for a quick conversion of the binary address to
740 * a numeric address. Note that the caller must not free the
741 * address and that the next call to this function is allowed
742 * to override the address again.
745 * @param addr binary address
746 * @param addrlen length of the address
747 * @return string representing the same address
750 template_plugin_address_to_string (void *cls,
759 * Exit point from the plugin.
762 libgnunet_plugin_transport_http_done (void *cls)
764 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
765 struct Plugin *plugin = api->cls;
767 struct Session * cs_next;
769 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
771 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
773 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
774 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
777 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
779 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
780 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
783 if (http_daemon_v4 != NULL)
785 MHD_stop_daemon (http_daemon_v4);
786 http_daemon_v4 = NULL;
788 if (http_daemon_v6 != NULL)
790 MHD_stop_daemon (http_daemon_v6);
791 http_daemon_v6 = NULL;
794 curl_multi_cleanup(multi_handle);
796 /* free all sessions */
797 cs = plugin->sessions;
800 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session to `%s'\n",cs->ip);
802 GNUNET_free (cs->ip);
803 GNUNET_free (cs->addr);
805 plugin->session_count--;
809 GNUNET_free (plugin);
816 * Entry point for the plugin.
819 libgnunet_plugin_transport_http_init (void *cls)
821 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
822 struct GNUNET_TRANSPORT_PluginFunctions *api;
824 long long unsigned int port;
826 plugin = GNUNET_malloc (sizeof (struct Plugin));
828 plugin->sessions = NULL;
829 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
831 api->send = &template_plugin_send;
832 api->disconnect = &template_plugin_disconnect;
833 api->address_pretty_printer = &template_plugin_address_pretty_printer;
834 api->check_address = &template_plugin_address_suggested;
835 api->address_to_string = &template_plugin_address_to_string;
837 hostname = GNUNET_RESOLVER_local_fqdn_get ();
839 /* Hashing our identity to use it in URLs */
840 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
842 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
843 /* Reading port number from config file */
845 GNUNET_CONFIGURATION_get_value_number (env->cfg,
851 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
854 ("Require valid port number for transport plugin `%s' in configuration!\n"),
856 libgnunet_plugin_transport_http_done (api);
860 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
862 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
864 &acceptPolicyCallback,
865 NULL , &accessHandlerCallback, NULL,
866 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
867 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
868 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
869 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
870 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
872 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
874 &acceptPolicyCallback,
875 NULL , &accessHandlerCallback, NULL,
876 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
877 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
878 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
879 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
880 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
883 if (http_daemon_v4 != NULL)
884 http_task_v4 = http_daemon_prepare (http_daemon_v4);
885 if (http_daemon_v6 != NULL)
886 http_task_v6 = http_daemon_prepare (http_daemon_v6);
888 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
889 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
890 if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
891 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
893 /* Initializing cURL */
894 multi_handle = curl_multi_init();
899 /* end of plugin_transport_template.c */