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.
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.
22 * @file transport/plugin_transport_template.c
23 * @brief template for a new transport service
24 * @author Christian Grothoff
28 #include "gnunet_constants.h"
29 #include "gnunet_protocols.h"
30 #include "gnunet_connection_lib.h"
31 #include "gnunet_server_lib.h"
32 #include "gnunet_service_lib.h"
33 #include "gnunet_statistics_service.h"
34 #include "gnunet_transport_service.h"
35 #include "gnunet_resolver_service.h"
36 #include "gnunet_server_lib.h"
37 #include "gnunet_container_lib.h"
38 #include "plugin_transport.h"
39 #include "gnunet_os_lib.h"
40 #include "microhttpd.h"
41 #include <curl/curl.h>
44 #define DEBUG_CURL GNUNET_YES
45 #define DEBUG_HTTP GNUNET_NO
48 * Text of the response sent back after the last bytes of a PUT
49 * request have been received (just to formally obey the HTTP
52 #define HTTP_PUT_RESPONSE "Thank you!"
55 * After how long do we expire an address that we
56 * learned from another peer if it is not reconfirmed
59 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
62 * Page returned if request invalid
64 #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>"
67 * Timeout for a http connect
69 #define HTTP_CONNECT_TIMEOUT 30
72 * Timeout for a http connect
74 #define HTTP_MESSAGE_INITIAL_BUFFERSIZE GNUNET_SERVER_MAX_MESSAGE_SIZE
78 * Network format for IPv4 addresses.
80 struct IPv4HttpAddress
83 * IPv4 address, in network byte order.
88 * Port number, in network byte order.
96 * Network format for IPv6 addresses.
98 struct IPv6HttpAddress
103 struct in6_addr ipv6_addr;
106 * Port number, in network byte order.
115 * Message to send using http
120 * Next field for linked list
122 struct HTTP_Message * next;
125 * buffer containing data to send
130 * amount of data already sent
142 * Continuation function to call once the transmission buffer
143 * has again space available. NULL if there is no
144 * continuation to call.
146 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
149 * Closure for transmit_cont.
151 void *transmit_cont_cls;
156 * Session handle for connections.
162 * Stored in a linked list.
164 struct Session *next;
167 * Pointer to the global plugin struct.
169 struct Plugin *plugin;
172 * To whom are we talking to (set to our identity
173 * if we are still waiting for the welcome message)
175 struct GNUNET_PeerIdentity partner;
178 * Sender's ip address to distinguish between incoming connections
180 //struct sockaddr_in * addr_inbound;
183 * Sender's ip address to distinguish between incoming connections
194 * Sender's ip address to distinguish between incoming connections
196 //char * addr_inbound_str;
200 * Sender's ip address specified by transport
202 //struct sockaddr_in * addr_outbound;
205 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
210 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
215 * At what time did we reset last_received last?
217 struct GNUNET_TIME_Absolute last_quota_update;
220 * How many bytes have we received since the "last_quota_update"
223 uint64_t last_received;
226 * Number of bytes per ms that this peer is allowed
232 * Is there a HTTP/PUT in progress?
234 int is_put_in_progress;
237 * Is the http request invalid?
244 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
246 struct HTTP_Message * pending_outbound_msg;
248 struct HTTP_Message * pending_inbound_msg;
252 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
256 * Encapsulation of all of the state of the plugin.
263 struct GNUNET_TRANSPORT_PluginEnvironment *env;
265 unsigned int port_inbound;
268 * Hashmap for all existing sessions.
270 struct GNUNET_CONTAINER_MultiHashMap *sessions;
274 * Daemon for listening for new IPv4 connections.
276 static struct MHD_Daemon *http_daemon_v4;
279 * Daemon for listening for new IPv6connections.
281 static struct MHD_Daemon *http_daemon_v6;
284 * Our primary task for http daemon handling IPv4 connections
286 static GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
289 * Our primary task for http daemon handling IPv6 connections
291 static GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
295 * The task sending data
297 static GNUNET_SCHEDULER_TaskIdentifier http_task_send;
301 * Information about this plugin
303 static struct Plugin *plugin;
308 static CURLM *multi_handle;
311 * Our ASCII encoded, hashed peer identity
312 * This string is used to distinguish between connections and is added to the urls
314 static struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
316 // MW: please document (which timeout is this!?)
317 static struct GNUNET_TIME_Relative timeout;
321 * Create a new session
323 * @param addr_in address the peer is using inbound
324 * @param addr_out address the peer is using outbound
325 * @param peer identity
326 * @return created session object
328 static struct Session * create_session (char * addr_in, size_t addrlen_in, char * addr_out, size_t addrlen_out, const struct GNUNET_PeerIdentity *peer)
330 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
334 ses->addr_in = GNUNET_malloc (addrlen_in);
335 ses->addr_in_len = addrlen_in;
336 memcpy(ses->addr_in,addr_in,addrlen_in);
339 if (addrlen_out != 0)
341 ses->addr_out = GNUNET_malloc (addrlen_out);
342 ses->addr_out_len = addrlen_out;
343 memcpy(ses->addr_out,addr_out,addrlen_out);
345 ses->plugin = plugin;
346 memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
347 GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
348 ses->is_active = GNUNET_NO;
349 ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
350 ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
351 ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
352 ses->pending_inbound_msg->pos = 0;
358 * Callback called by MHD when a connection is terminated
360 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
364 cs = *httpSessionCache;
367 /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
368 /* session set to inactive */
369 cs->is_active = GNUNET_NO;
370 cs->is_put_in_progress = GNUNET_NO;
374 static void messageTokenizerCallback (void *cls,
377 GNUNET_MessageHeader *
380 struct Session * cs = cls;
381 GNUNET_assert(cs != NULL);
383 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
384 "Received message with type %u and size %u from `%s'\n",
385 ntohs(message->type),
386 ntohs(message->size),
387 GNUNET_i2s(&(cs->partner)));
388 plugin->env->receive(plugin->env->cls,
393 /*(char *)cs->addr_in,
398 * Check if ip is allowed to connect.
401 acceptPolicyCallback (void *cls,
402 const struct sockaddr *addr, socklen_t addr_len)
404 /* Every connection is accepted, nothing more to do here */
409 * Process GET or PUT request received via MHD. For
410 * GET, queue response that will send back our pending
411 * messages. For PUT, process incoming data and send
412 * to GNUnet core. In either case, check if a session
413 * already exists and create a new one if not.
416 accessHandlerCallback (void *cls,
417 struct MHD_Connection *session,
421 const char *upload_data,
422 size_t * upload_data_size, void **httpSessionCache)
424 struct MHD_Response *response;
426 const union MHD_ConnectionInfo * conn_info;
427 struct sockaddr_in *addrin;
428 struct sockaddr_in6 *addrin6;
429 char address[INET6_ADDRSTRLEN+14];
430 struct GNUNET_PeerIdentity pi_in;
432 struct GNUNET_MessageHeader *cur_msg;
433 int send_error_to_client;
434 struct IPv4HttpAddress ipv4addr;
435 struct IPv6HttpAddress ipv6addr;
438 send_error_to_client = GNUNET_NO;
440 if ( NULL == *httpSessionCache)
442 /* check url for peer identity */
443 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
444 if ( GNUNET_SYSERR == res )
446 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
447 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
448 MHD_destroy_response (response);
450 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
452 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
456 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
457 /* Incoming IPv4 connection */
458 if ( AF_INET == conn_info->client_addr->sin_family)
460 addrin = conn_info->client_addr;
461 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
462 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
463 ipv4addr.u_port = addrin->sin_port;
465 /* Incoming IPv6 connection */
466 if ( AF_INET6 == conn_info->client_addr->sin_family)
468 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
469 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
470 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
471 ipv6addr.u6_port = addrin6->sin6_port;
473 /* find existing session for address */
474 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
475 /* no existing session, create a new one*/
478 /* create new session object */
479 if ( AF_INET6 == conn_info->client_addr->sin_family)
480 cs = create_session((char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
481 if ( AF_INET == conn_info->client_addr->sin_family)
482 cs = create_session((char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
484 /* Insert session into hashmap */
485 GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
486 &cs->partner.hashPubKey,
488 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
490 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
493 /* Set closure and update current session*/
494 if (*httpSessionCache == NULL)
496 *httpSessionCache = cs;
497 /* Updating session */
499 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
500 if ( AF_INET == cs->addr_inbound->sin_family)
502 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
505 if ( AF_INET6 == cs->addr_inbound->sin_family)
507 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
511 if (cs->msgtok==NULL)
512 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, cs, &messageTokenizerCallback, cs);
514 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
518 cs = *httpSessionCache;
520 /* Is it a PUT or a GET request */
521 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
524 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
526 if (cs->pending_inbound_msg->pos !=0 )
528 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
529 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
530 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg->pos);
531 cs->pending_inbound_msg->pos = 0;
534 cs->is_put_in_progress = GNUNET_YES;
535 cs->is_bad_request = GNUNET_NO;
536 cs->is_active = GNUNET_YES;
540 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
542 if ((*upload_data_size + cs->pending_inbound_msg->pos < cs->pending_inbound_msg->len) && (*upload_data_size + cs->pending_inbound_msg->pos <= GNUNET_SERVER_MAX_MESSAGE_SIZE))
544 /* copy uploaded data to buffer */
545 memcpy(&cs->pending_inbound_msg->buf[cs->pending_inbound_msg->pos],upload_data,*upload_data_size);
546 cs->pending_inbound_msg->pos += *upload_data_size;
547 *upload_data_size = 0;
552 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes not added to message of %u bytes, message to big\n",*upload_data_size, cs->pending_inbound_msg->pos);
553 cs->is_bad_request = GNUNET_YES;
554 /* (*upload_data_size) bytes not processed */
559 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
561 *upload_data_size = 0;
562 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
563 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
566 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
567 cs->is_bad_request = GNUNET_NO;
568 cs->is_put_in_progress =GNUNET_NO;
569 cs->pending_inbound_msg->pos = 0;
571 MHD_destroy_response (response);
575 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
577 send_error_to_client = GNUNET_YES;
579 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
581 cur_msg = (struct GNUNET_MessageHeader *) cs->pending_inbound_msg->buf;
582 res = GNUNET_SERVER_mst_receive(cs->msgtok,cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos, GNUNET_YES, GNUNET_NO);
583 if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
584 send_error_to_client = GNUNET_NO;
586 if (send_error_to_client == GNUNET_NO)
588 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
589 res = MHD_queue_response (session, MHD_HTTP_OK, response);
590 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
591 MHD_destroy_response (response);
595 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
596 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
597 MHD_destroy_response (response);
598 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
600 cs->is_put_in_progress = GNUNET_NO;
601 cs->is_bad_request = GNUNET_NO;
602 cs->pending_inbound_msg->pos = 0;
606 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
608 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
609 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
610 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
611 res = MHD_queue_response (session, MHD_HTTP_OK, response);
612 MHD_destroy_response (response);
620 * Call MHD to process pending requests and then go back
621 * and schedule the next run.
623 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
626 * Function that queries MHD's select sets and
627 * starts the task waiting for them.
629 static GNUNET_SCHEDULER_TaskIdentifier
630 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
632 GNUNET_SCHEDULER_TaskIdentifier ret;
636 struct GNUNET_NETWORK_FDSet *wrs;
637 struct GNUNET_NETWORK_FDSet *wws;
638 struct GNUNET_NETWORK_FDSet *wes;
640 unsigned long long timeout;
642 struct GNUNET_TIME_Relative tv;
647 wrs = GNUNET_NETWORK_fdset_create ();
648 wes = GNUNET_NETWORK_fdset_create ();
649 wws = GNUNET_NETWORK_fdset_create ();
651 GNUNET_assert (MHD_YES ==
652 MHD_get_fdset (daemon_handle,
657 haveto = MHD_get_timeout (daemon_handle, &timeout);
658 if (haveto == MHD_YES)
659 tv.value = (uint64_t) timeout;
661 tv = GNUNET_TIME_UNIT_FOREVER_REL;
662 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
663 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
664 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
665 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
666 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
667 GNUNET_SCHEDULER_NO_TASK,
673 GNUNET_NETWORK_fdset_destroy (wrs);
674 GNUNET_NETWORK_fdset_destroy (wws);
675 GNUNET_NETWORK_fdset_destroy (wes);
680 * Call MHD to process pending requests and then go back
681 * and schedule the next run.
683 static void http_daemon_run (void *cls,
684 const struct GNUNET_SCHEDULER_TaskContext *tc)
686 struct MHD_Daemon *daemon_handle = cls;
688 if (daemon_handle == http_daemon_v4)
689 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
691 if (daemon_handle == http_daemon_v6)
692 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
694 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
697 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
698 if (daemon_handle == http_daemon_v4)
699 http_task_v4 = http_daemon_prepare (daemon_handle);
700 if (daemon_handle == http_daemon_v6)
701 http_task_v6 = http_daemon_prepare (daemon_handle);
706 * Removes a message from the linked list of messages
707 * @param ses session to remove message from
708 * @param msg message to remove
709 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
712 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
714 struct HTTP_Message * cur;
715 struct HTTP_Message * next;
717 cur = ses->pending_outbound_msg;
721 return GNUNET_SYSERR;
725 ses->pending_outbound_msg = cur->next;
726 GNUNET_free (cur->buf);
727 GNUNET_free (cur->dest_url);
733 while (cur->next!=msg)
735 if (cur->next != NULL)
738 return GNUNET_SYSERR;
741 cur->next = cur->next->next;
742 GNUNET_free (cur->next->buf);
743 GNUNET_free (cur->next->dest_url);
744 GNUNET_free (cur->next);
750 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
753 size_t len = size * nmemb;
756 if ((size * nmemb) < SIZE_MAX)
757 tmp = GNUNET_malloc (len+1);
759 if ((tmp != NULL) && (len > 0))
764 if (tmp[len-2] == 13)
768 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
778 * Callback method used with libcurl
779 * Method is called when libcurl needs to read data during sending
780 * @param stream pointer where to write data
781 * @param size size of an individual element
782 * @param nmemb count of elements that can be written to the buffer
783 * @param ptr source pointer, passed to the libcurl handle
784 * @return bytes written to stream
786 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
788 struct Session * ses = ptr;
789 struct HTTP_Message * msg = ses->pending_outbound_msg;
794 if (( msg->pos < msg->len))
796 /* data fit in buffer */
797 if ((msg->len - msg->pos) <= (size * nmemb))
799 len = (msg->len - msg->pos);
800 memcpy(stream, &msg->buf[msg->pos], len);
807 memcpy(stream, &msg->buf[msg->pos], len);
812 /* no data to send */
821 * Callback method used with libcurl
822 * Method is called when libcurl needs to write data during sending
823 * @param stream pointer where to write data
824 * @param size size of an individual element
825 * @param nmemb count of elements that can be written to the buffer
826 * @param ptr destination pointer, passed to the libcurl handle
827 * @return bytes read from stream
829 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
833 if ((size * nmemb) < SIZE_MAX)
834 data = GNUNET_malloc(size*nmemb +1);
837 memcpy( data, stream, size*nmemb);
838 data[size*nmemb] = '\0';
841 return (size * nmemb);
846 * Function setting up file descriptors and scheduling task to run
847 * @param ses session to send data to
848 * @return bytes sent to peer
850 static size_t send_prepare(struct Session* ses );
853 * Function setting up curl handle and selecting message to send
854 * @param ses session to send data to
855 * @return bytes sent to peer
857 static ssize_t send_select_init (struct Session* ses )
861 struct HTTP_Message * msg;
863 if ( NULL == ses->curl_handle)
864 ses->curl_handle = curl_easy_init();
865 if( NULL == ses->curl_handle)
867 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
870 msg = ses->pending_outbound_msg;
875 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
877 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
878 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
879 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
880 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
881 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
882 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
883 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
884 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
885 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
886 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, (long) (timeout.value / 1000 ));
887 GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
888 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
889 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
891 mret = curl_multi_add_handle(multi_handle, ses->curl_handle);
892 if (mret != CURLM_OK)
894 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
895 _("%s failed at %s:%d: `%s'\n"),
896 "curl_multi_add_handle", __FILE__, __LINE__,
897 curl_multi_strerror (mret));
900 bytes_sent = send_prepare (ses );
904 static void send_execute (void *cls,
905 const struct GNUNET_SCHEDULER_TaskContext *tc)
907 static unsigned int handles_last_run;
911 struct Session * cs = NULL;
914 http_task_send = GNUNET_SCHEDULER_NO_TASK;
915 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
921 mret = curl_multi_perform (multi_handle, &running);
922 if (running < handles_last_run)
927 msg = curl_multi_info_read (multi_handle, &running);
928 GNUNET_break (msg != NULL);
931 /* get session for affected curl handle */
932 GNUNET_assert ( msg->easy_handle != NULL );
933 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
934 GNUNET_assert ( cs != NULL );
935 GNUNET_assert ( cs->pending_outbound_msg != NULL );
940 if ( (msg->data.result != CURLE_OK) &&
941 (msg->data.result != CURLE_GOT_NOTHING) )
943 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
944 _("%s failed for `%s' at %s:%d: `%s'\n"),
945 "curl_multi_perform",
946 GNUNET_i2s(&cs->partner),
949 curl_easy_strerror (msg->data.result));
950 /* sending msg failed*/
951 if (( NULL != cs->pending_outbound_msg) && ( NULL != cs->pending_outbound_msg->transmit_cont))
952 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
956 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
957 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
958 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner), http_result );
960 curl_easy_cleanup(cs->curl_handle);
961 cs->curl_handle=NULL;
963 /* Calling transmit continuation */
964 if (( NULL != cs->pending_outbound_msg) && (NULL != cs->pending_outbound_msg->transmit_cont))
966 /* HTTP 1xx : Last message before here was informational */
967 if ((http_result >=100) && (http_result < 200))
968 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_OK);
969 /* HTTP 2xx: successful operations */
970 if ((http_result >=200) && (http_result < 300))
971 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_OK);
972 /* HTTP 3xx..5xx: error */
973 if ((http_result >=300) && (http_result < 600))
974 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
977 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg))
978 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
979 /* send pending messages */
980 if (cs->pending_outbound_msg != NULL)
982 send_select_init (cs);
990 while ( (running > 0) );
992 handles_last_run = running;
994 while (mret == CURLM_CALL_MULTI_PERFORM);
1000 * Function setting up file descriptors and scheduling task to run
1001 * @param ses session to send data to
1002 * @return bytes sent to peer
1004 static size_t send_prepare(struct Session* ses )
1010 struct GNUNET_NETWORK_FDSet *grs;
1011 struct GNUNET_NETWORK_FDSet *gws;
1019 mret = curl_multi_fdset (multi_handle, &rs, &ws, &es, &max);
1020 if (mret != CURLM_OK)
1022 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1023 _("%s failed at %s:%d: `%s'\n"),
1024 "curl_multi_fdset", __FILE__, __LINE__,
1025 curl_multi_strerror (mret));
1028 mret = curl_multi_timeout (multi_handle, &to);
1029 if (mret != CURLM_OK)
1031 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1032 _("%s failed at %s:%d: `%s'\n"),
1033 "curl_multi_timeout", __FILE__, __LINE__,
1034 curl_multi_strerror (mret));
1038 grs = GNUNET_NETWORK_fdset_create ();
1039 gws = GNUNET_NETWORK_fdset_create ();
1040 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1041 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1042 http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1043 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1044 GNUNET_SCHEDULER_NO_TASK,
1045 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1050 GNUNET_NETWORK_fdset_destroy (gws);
1051 GNUNET_NETWORK_fdset_destroy (grs);
1053 /* FIXME: return bytes REALLY sent */
1058 * Function that can be used by the transport service to transmit
1059 * a message using the plugin.
1061 * @param cls closure
1062 * @param target who should receive this message
1063 * @param priority how important is the message
1064 * @param msgbuf the message to transmit
1065 * @param msgbuf_size number of bytes in 'msgbuf'
1066 * @param to when should we time out
1067 * @param session which session must be used (or NULL for "any")
1068 * @param addr the address to use (can be NULL if the plugin
1069 * is "on its own" (i.e. re-use existing TCP connection))
1070 * @param addrlen length of the address in bytes
1071 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1072 * otherwise the plugin may use other addresses or
1073 * existing connections (if available)
1074 * @param cont continuation to call once the message has
1075 * been transmitted (or if the transport is ready
1076 * for the next transmission call; or if the
1077 * peer disconnected...)
1078 * @param cont_cls closure for cont
1079 * @return number of bytes used (on the physical network, with overheads);
1080 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1081 * and does NOT mean that the message was not transmitted (DV)
1084 http_plugin_send (void *cls,
1085 const struct GNUNET_PeerIdentity *target,
1088 unsigned int priority,
1089 struct GNUNET_TIME_Relative to,
1090 struct Session *session,
1094 GNUNET_TRANSPORT_TransmitContinuation cont,
1100 struct HTTP_Message * msg;
1101 struct HTTP_Message * tmp;
1107 /* find session for peer */
1108 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
1109 /* if (NULL != ses ) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Existing session for peer `%s' found\n", GNUNET_i2s(target));*/
1112 /* create new session object */
1114 cs = create_session((char *) addr, addrlen, NULL, 0, target);
1115 cs->is_active = GNUNET_YES;
1117 /* Insert session into linked list */
1118 res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
1119 &cs->partner.hashPubKey,
1121 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1123 if (res == GNUNET_OK)
1124 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1125 "New Session `%s' inserted\n", GNUNET_i2s(target));
1128 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1129 "Session `%s' found\n", GNUNET_i2s(target));
1131 GNUNET_assert (addr!=NULL);
1133 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: len `%u'\n",addrlen);
1134 if (cs->addr_out != NULL) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"have addr out!!!!'\n");
1135 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1137 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1138 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1139 port = ntohs(((struct IPv4HttpAddress *) addr)->u_port);
1140 GNUNET_asprintf (&url,
1144 (char *) (&my_ascii_hash_ident));
1145 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: address `%s'\n",address);
1146 GNUNET_free(address);
1148 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1150 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1151 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1152 port = ntohs(((struct IPv6HttpAddress *) addr)->u6_port);
1153 GNUNET_asprintf(&url,
1155 address,port,(char *) (&my_ascii_hash_ident));
1156 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: address `%s'\n",address);
1157 GNUNET_free(address);
1160 /* setting up message */
1161 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1163 msg->len = msgbuf_size;
1165 msg->buf = GNUNET_malloc (msgbuf_size);
1166 msg->dest_url = url;
1167 msg->transmit_cont = cont;
1168 msg->transmit_cont_cls = cont_cls;
1169 memcpy (msg->buf,msgbuf, msgbuf_size);
1170 /* insert created message in list of pending messages */
1171 if (cs->pending_outbound_msg == NULL)
1173 cs->pending_outbound_msg = msg;
1175 tmp = cs->pending_outbound_msg;
1176 while ( NULL != tmp->next)
1184 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: sending %u bytes of data from peer `%4.4s' to peer `%s'\n",msgbuf_size,(char *) &my_ascii_hash_ident,GNUNET_i2s(target));
1185 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1186 if (msg == cs->pending_outbound_msg)
1188 bytes_sent = send_select_init (cs);
1197 * Function that can be used to force the plugin to disconnect
1198 * from the given peer and cancel all previous transmissions
1199 * (and their continuationc).
1201 * @param cls closure
1202 * @param target peer from which to disconnect
1205 http_plugin_disconnect (void *cls,
1206 const struct GNUNET_PeerIdentity *target)
1208 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1209 // struct Plugin *plugin = cls;
1215 * Convert the transports address to a nice, human-readable
1218 * @param cls closure
1219 * @param type name of the transport that generated the address
1220 * @param addr one of the addresses of the host, NULL for the last address
1221 * the specific address format depends on the transport
1222 * @param addrlen length of the address
1223 * @param numeric should (IP) addresses be displayed in numeric form?
1224 * @param timeout after how long should we give up?
1225 * @param asc function to call on each string
1226 * @param asc_cls closure for asc
1229 http_plugin_address_pretty_printer (void *cls,
1234 struct GNUNET_TIME_Relative timeout,
1235 GNUNET_TRANSPORT_AddressStringCallback
1238 const struct IPv4HttpAddress *t4;
1239 const struct IPv6HttpAddress *t6;
1240 struct sockaddr_in a4;
1241 struct sockaddr_in6 a6;
1247 if (addrlen == sizeof (struct IPv6HttpAddress))
1249 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1251 a6.sin6_addr = t6->ipv6_addr;
1252 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1253 port = ntohs(t6->u6_port);
1255 else if (addrlen == sizeof (struct IPv4HttpAddress))
1257 address = GNUNET_malloc (INET_ADDRSTRLEN);
1259 a4.sin_addr.s_addr = t4->ipv4_addr;
1260 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1261 port = ntohs(t4->u_port);
1265 /* invalid address */
1266 GNUNET_break_op (0);
1267 asc (asc_cls, NULL);
1270 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1271 GNUNET_free (address);
1272 GNUNET_assert(res != 0);
1280 * Another peer has suggested an address for this
1281 * peer and transport plugin. Check that this could be a valid
1282 * address. If so, consider adding it to the list
1285 * @param cls closure
1286 * @param addr pointer to the address
1287 * @param addrlen length of addr
1288 * @return GNUNET_OK if this is a plausible address for this peer
1292 http_plugin_address_suggested (void *cls,
1293 void *addr, size_t addrlen)
1295 struct IPv4HttpAddress *v4;
1296 struct IPv6HttpAddress *v6;
1299 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1300 (addrlen != sizeof (struct IPv6HttpAddress)))
1302 return GNUNET_SYSERR;
1304 if (addrlen == sizeof (struct IPv4HttpAddress))
1306 v4 = (struct IPv4HttpAddress *) addr;
1307 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1309 return GNUNET_SYSERR;
1311 port = ntohs (v4->u_port);
1312 if (port != plugin->port_inbound)
1314 return GNUNET_SYSERR;
1319 v6 = (struct IPv6HttpAddress *) addr;
1320 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1322 return GNUNET_SYSERR;
1324 port = ntohs (v6->u6_port);
1325 if (port != plugin->port_inbound)
1327 return GNUNET_SYSERR;
1337 * Function called for a quick conversion of the binary address to
1338 * a numeric address. Note that the caller must not free the
1339 * address and that the next call to this function is allowed
1340 * to override the address again.
1342 * @param cls closure
1343 * @param addr binary address
1344 * @param addrlen length of the address
1345 * @return string representing the same address
1348 http_plugin_address_to_string (void *cls,
1352 const struct IPv4HttpAddress *t4;
1353 const struct IPv6HttpAddress *t6;
1354 struct sockaddr_in a4;
1355 struct sockaddr_in6 a6;
1361 if (addrlen == sizeof (struct IPv6HttpAddress))
1363 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1365 a6.sin6_addr = t6->ipv6_addr;
1366 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1367 port = ntohs(t6->u6_port);
1369 else if (addrlen == sizeof (struct IPv4HttpAddress))
1371 address = GNUNET_malloc (INET_ADDRSTRLEN);
1373 a4.sin_addr.s_addr = t4->ipv4_addr;
1374 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1375 port = ntohs(t4->u_port);
1379 /* invalid address */
1382 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1383 GNUNET_free (address);
1384 GNUNET_assert(res != 0);
1389 * Add the IP of our network interface to the list of
1390 * our external IP addresses.
1392 * @param cls the 'struct Plugin*'
1393 * @param name name of the interface
1394 * @param isDefault do we think this may be our default interface
1395 * @param addr address of the interface
1396 * @param addrlen number of bytes in addr
1397 * @return GNUNET_OK to continue iterating
1400 process_interfaces (void *cls,
1403 const struct sockaddr *addr, socklen_t addrlen)
1405 struct IPv4HttpAddress t4;
1406 struct IPv6HttpAddress t6;
1411 af = addr->sa_family;
1414 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1416 /* skip loopback addresses */
1419 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1420 t4.u_port = htons (plugin->port_inbound);
1424 else if (af == AF_INET6)
1426 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1428 /* skip link local addresses */
1431 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1433 /* skip loopback addresses */
1436 memcpy (&t6.ipv6_addr,
1437 &((struct sockaddr_in6 *) addr)->sin6_addr,
1438 sizeof (struct in6_addr));
1439 t6.u6_port = htons (plugin->port_inbound);
1448 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1452 int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
1454 struct Session * cs = value;
1456 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1458 /* freeing messages */
1459 struct HTTP_Message *cur;
1460 struct HTTP_Message *tmp;
1461 cur = cs->pending_outbound_msg;
1466 GNUNET_free_non_null(cur->dest_url);
1467 GNUNET_free_non_null (cur->buf);
1471 GNUNET_SERVER_mst_destroy (cs->msgtok);
1472 GNUNET_free (cs->pending_inbound_msg->buf);
1473 GNUNET_free (cs->pending_inbound_msg);
1474 GNUNET_free_non_null (cs->addr_in);
1475 GNUNET_free_non_null (cs->addr_out);
1482 * Exit point from the plugin.
1485 libgnunet_plugin_transport_http_done (void *cls)
1487 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1488 struct Plugin *plugin = api->cls;
1491 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1493 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1495 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
1496 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1499 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1501 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
1502 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1505 if ( http_task_send != GNUNET_SCHEDULER_NO_TASK)
1507 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_send);
1508 http_task_send = GNUNET_SCHEDULER_NO_TASK;
1511 if (http_daemon_v4 != NULL)
1513 MHD_stop_daemon (http_daemon_v4);
1514 http_daemon_v4 = NULL;
1516 if (http_daemon_v6 != NULL)
1518 MHD_stop_daemon (http_daemon_v6);
1519 http_daemon_v6 = NULL;
1522 /* free all sessions */
1523 GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
1524 &hashMapFreeIterator,
1527 GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
1529 mret = curl_multi_cleanup(multi_handle);
1530 if ( CURLM_OK != mret)
1531 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1533 GNUNET_free (plugin);
1540 * Entry point for the plugin.
1543 libgnunet_plugin_transport_http_init (void *cls)
1545 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1546 struct GNUNET_TRANSPORT_PluginFunctions *api;
1547 unsigned int timeout;
1548 struct GNUNET_TIME_Relative gn_timeout;
1549 long long unsigned int port;
1551 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1553 plugin = GNUNET_malloc (sizeof (struct Plugin));
1555 plugin->sessions = NULL;
1556 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1558 api->send = &http_plugin_send;
1559 api->disconnect = &http_plugin_disconnect;
1560 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1561 api->check_address = &http_plugin_address_suggested;
1562 api->address_to_string = &http_plugin_address_to_string;
1564 /* Hashing our identity to use it in URLs */
1565 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
1567 /* Reading port number from config file */
1569 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1575 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1578 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1580 libgnunet_plugin_transport_http_done (api);
1583 GNUNET_assert ((port > 0) && (port <= 65535));
1584 plugin->port_inbound = port;
1585 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1586 timeout = ( gn_timeout.value / 1000);
1587 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
1589 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1591 &acceptPolicyCallback,
1592 NULL , &accessHandlerCallback, NULL,
1593 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1594 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1595 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1596 /* FIXME: set correct limit */
1597 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1598 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1600 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1602 &acceptPolicyCallback,
1603 NULL , &accessHandlerCallback, NULL,
1604 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1605 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1606 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1607 /* FIXME: set correct limit */
1608 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1609 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1612 if (http_daemon_v4 != NULL)
1613 http_task_v4 = http_daemon_prepare (http_daemon_v4);
1614 if (http_daemon_v6 != NULL)
1615 http_task_v6 = http_daemon_prepare (http_daemon_v6);
1617 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1618 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1619 else if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1620 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1623 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1624 libgnunet_plugin_transport_http_done (api);
1628 /* Initializing cURL */
1629 multi_handle = curl_multi_init();
1630 if ( NULL == multi_handle )
1632 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1634 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1636 libgnunet_plugin_transport_http_done (api);
1640 plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
1641 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1646 /* end of plugin_transport_template.c */