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 3, 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_http.c
23 * @brief http transport service plugin
24 * @author Matthias Wachs
27 #include "plugin_transport_http.h"
30 * After how long do we expire an address that we
31 * learned from another peer if it is not reconfirmed
34 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
37 * Wrapper to manage IPv4 addresses
39 struct IPv4HttpAddressWrapper
44 struct IPv4HttpAddressWrapper *next;
47 * Linked list previous
49 struct IPv4HttpAddressWrapper *prev;
51 struct sockaddr_in addr;
55 * Wrapper for IPv4 addresses.
57 struct IPv6HttpAddressWrapper
62 struct IPv6HttpAddressWrapper *next;
65 * Linked list previous
67 struct IPv6HttpAddressWrapper *prev;
72 struct sockaddr_in6 addr GNUNET_PACKED;
77 * Context for address to string conversion.
79 struct PrettyPrinterContext
82 * Function to call with the result.
84 GNUNET_TRANSPORT_AddressStringCallback asc;
89 struct Plugin *plugin;
97 * Port to add after the IP address.
104 * Encapsulation of all of the state of the plugin.
111 * Append our port and forward the result.
113 * @param cls the 'struct PrettyPrinterContext*'
114 * @param hostname hostname part of the address
117 append_port (void *cls, const char *hostname)
119 struct PrettyPrinterContext *ppc = cls;
122 if (hostname == NULL)
124 ppc->asc (ppc->asc_cls, NULL);
128 GNUNET_asprintf (&ret, "%s://%s:%d", ppc->plugin->protocol, hostname,
130 ppc->asc (ppc->asc_cls, ret);
136 * Convert the transports address to a nice, human-readable
140 * @param type name of the transport that generated the address
141 * @param addr one of the addresses of the host, NULL for the last address
142 * the specific address format depends on the transport
143 * @param addrlen length of the address
144 * @param numeric should (IP) addresses be displayed in numeric form?
145 * @param timeout after how long should we give up?
146 * @param asc function to call on each string
147 * @param asc_cls closure for asc
150 http_plugin_address_pretty_printer (void *cls, const char *type,
151 const void *addr, size_t addrlen,
153 struct GNUNET_TIME_Relative timeout,
154 GNUNET_TRANSPORT_AddressStringCallback asc,
157 GNUNET_assert (cls != NULL);
158 struct PrettyPrinterContext *ppc;
163 if (addrlen == sizeof (struct sockaddr_in6))
166 sbs = sizeof (struct sockaddr_in6);
168 port = ntohs (((struct sockaddr_in6 *)addr)->sin6_port);
170 else if (addrlen == sizeof (struct sockaddr_in))
173 sbs = sizeof (struct sockaddr_in);
174 port = ntohs (((struct sockaddr_in *)addr)->sin_port);
178 /* invalid address */
183 ppc = GNUNET_malloc (sizeof (struct PrettyPrinterContext));
185 ppc->asc_cls = asc_cls;
188 GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric, timeout, &append_port, ppc);
194 * Another peer has suggested an address for this
195 * peer and transport plugin. Check that this could be a valid
196 * address. If so, consider adding it to the list
200 * @param addr pointer to the address
201 * @param addrlen length of addr
202 * @return GNUNET_OK if this is a plausible address for this peer
206 http_plugin_address_suggested (void *cls, const void *addr, size_t addrlen)
209 struct Plugin *plugin = cls;
210 struct IPv4HttpAddressWrapper *w_tv4 = plugin->ipv4_addr_head;
211 struct IPv6HttpAddressWrapper *w_tv6 = plugin->ipv6_addr_head;
213 GNUNET_assert (cls != NULL);
214 if ((addrlen != sizeof (struct sockaddr_in)) ||
215 (addrlen != sizeof (struct sockaddr_in6)))
216 return GNUNET_SYSERR;
218 if (addrlen == sizeof (struct sockaddr_in))
220 while (w_tv4 != NULL)
222 if (0 == memcmp (&w_tv4->addr, addr, sizeof (struct sockaddr_in)))
229 return GNUNET_SYSERR;
231 if (addrlen == sizeof (struct sockaddr_in6))
233 while (w_tv6 != NULL)
236 memcmp (&w_tv6->addr, addr,
237 sizeof (struct sockaddr_in6)))
244 return GNUNET_SYSERR;
249 struct GNUNET_TIME_Relative
250 http_plugin_receive (void *cls, const struct GNUNET_PeerIdentity * peer,
251 const struct GNUNET_MessageHeader * message,
252 struct Session * session,
253 const char *sender_address,
254 uint16_t sender_address_len)
256 struct Session *s = cls;
257 struct Plugin *plugin = s->plugin;
258 struct GNUNET_TRANSPORT_ATS_Information distance[2];
259 struct GNUNET_TIME_Relative delay;
261 distance[0].type = htonl (GNUNET_TRANSPORT_ATS_QUALITY_NET_DISTANCE);
262 distance[0].value = htonl (1);
263 distance[1].type = htonl (GNUNET_TRANSPORT_ATS_ARRAY_TERMINATOR);
264 distance[1].value = htonl (0);
266 delay = plugin->env->receive (plugin->env->cls, &s->target, message, (const struct GNUNET_TRANSPORT_ATS_Information*) &distance, 2, s, s->addr, s->addrlen);
271 * Function called for a quick conversion of the binary address to
272 * a numeric address. Note that the caller must not free the
273 * address and that the next call to this function is allowed
274 * to override the address again.
277 * @param addr binary address
278 * @param addrlen length of the address
279 * @return string representing the same address
282 http_plugin_address_to_string (void *cls, const void *addr, size_t addrlen)
285 struct sockaddr_in *a4;
286 struct sockaddr_in6 *a6;
288 static char rbuf[INET6_ADDRSTRLEN + 13];
292 if (addrlen == sizeof (struct sockaddr_in6))
294 a6 = (struct sockaddr_in6 *) addr;
295 address = GNUNET_malloc (INET6_ADDRSTRLEN);
296 inet_ntop (AF_INET6, &(a6->sin6_addr), address, INET6_ADDRSTRLEN);
297 port = ntohs (a6->sin6_port);
299 else if (addrlen == sizeof (struct sockaddr_in))
301 a4 = (struct sockaddr_in *) addr;
302 address = GNUNET_malloc (INET_ADDRSTRLEN);
303 inet_ntop (AF_INET, &(a4->sin_addr), address, INET_ADDRSTRLEN);
304 port = ntohs (a4->sin_port);
308 /* invalid address */
312 char * protocol = "http";
314 char * protocol = "https";
317 GNUNET_assert (strlen (address) + 7 < (INET6_ADDRSTRLEN + 13));
318 if (addrlen == sizeof (struct sockaddr_in6))
319 res = GNUNET_snprintf (rbuf, sizeof (rbuf), "%s://[%s]:%u/", protocol, address, port);
320 else if (addrlen == sizeof (struct sockaddr_in))
321 res = GNUNET_snprintf (rbuf, sizeof (rbuf), "%s://%s:%u/", protocol, address, port);
323 GNUNET_free (address);
324 GNUNET_assert (res != 0);
329 lookup_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target,
330 struct Session * session,
331 const void *addr, size_t addrlen, int force_address)
333 struct Session *s = NULL;
334 struct Session *t = NULL;
344 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
345 "Comparing peer `%s' address `%s' len %i session %X to \n", GNUNET_i2s(target), GNUNET_a2s(addr,addrlen), addrlen, session);
346 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,"peer `%s' address `%s' len %i session %X \n\n", GNUNET_i2s(&t->target), GNUNET_a2s(t->addr,t->addrlen), t->addrlen, t);
347 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,"memcmp %i \n", memcmp (addr, t->addr, addrlen));
352 if (0 == memcmp (target, &t->target, sizeof (struct GNUNET_PeerIdentity)))
355 if (addrlen == t->addrlen)
357 if (0 == memcmp (addr, t->addr, addrlen))
364 if(t->addrlen == session->addrlen)
366 if (0 == memcmp (session->addr, t->addr, t->addrlen))
374 if ((e_peer == GNUNET_YES) && (force_address == GNUNET_NO))
379 if ((e_peer == GNUNET_YES) && (force_address == GNUNET_YES) && (e_addr == GNUNET_YES))
384 if ((e_peer == GNUNET_YES) && (force_address == GNUNET_SYSERR))
399 delete_session (struct Session *s)
401 GNUNET_free (s->addr);
402 GNUNET_free_non_null(s->server_recv);
403 GNUNET_free_non_null(s->server_send);
408 create_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target,
409 const void *addr, size_t addrlen,
410 GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
412 struct Session *s = NULL;
414 s = GNUNET_malloc (sizeof (struct Session));
415 memcpy (&s->target, target, sizeof (struct GNUNET_PeerIdentity));
417 s->addr = GNUNET_malloc (addrlen);
418 memcpy (s->addr, addr, addrlen);
419 s->addrlen = addrlen;
420 s->transmit_cont = cont;
421 s->transmit_cont_cls = cont_cls;
423 s->delay = GNUNET_TIME_absolute_get_forever();
428 notify_session_end (void *cls,
429 const struct GNUNET_PeerIdentity *
430 peer, struct Session * s)
432 struct Plugin *plugin = cls;
434 plugin->env->session_end (NULL, peer, s);
435 GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
441 * Function that can be used by the transport service to transmit
442 * a message using the plugin. Note that in the case of a
443 * peer disconnecting, the continuation MUST be called
444 * prior to the disconnect notification itself. This function
445 * will be called with this peer's HELLO message to initiate
446 * a fresh connection to another peer.
449 * @param target who should receive this message
450 * @param msgbuf the message to transmit
451 * @param msgbuf_size number of bytes in 'msgbuf'
452 * @param priority how important is the message (most plugins will
453 * ignore message priority and just FIFO)
454 * @param to how long to wait at most for the transmission (does not
455 * require plugins to discard the message after the timeout,
456 * just advisory for the desired delay; most plugins will ignore
458 * @param session which session must be used (or NULL for "any")
459 * @param addr the address to use (can be NULL if the plugin
460 * is "on its own" (i.e. re-use existing TCP connection))
461 * @param addrlen length of the address in bytes
462 * @param force_address GNUNET_YES if the plugin MUST use the given address,
463 * GNUNET_NO means the plugin may use any other address and
464 * GNUNET_SYSERR means that only reliable existing
465 * bi-directional connections should be used (regardless
467 * @param cont continuation to call once the message has
468 * been transmitted (or if the transport is ready
469 * for the next transmission call; or if the
470 * peer disconnected...); can be NULL
471 * @param cont_cls closure for cont
472 * @return number of bytes used (on the physical network, with overheads);
473 * -1 on hard errors (i.e. address invalid); 0 is a legal value
474 * and does NOT mean that the message was not transmitted (DV)
477 http_plugin_send (void *cls, const struct GNUNET_PeerIdentity *target,
478 const char *msgbuf, size_t msgbuf_size, unsigned int priority,
479 struct GNUNET_TIME_Relative to, struct Session *session,
480 const void *addr, size_t addrlen, int force_address,
481 GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
483 struct Plugin *plugin = cls;
484 struct HTTP_Message *msg;
485 GNUNET_assert (plugin != NULL);
487 int res = GNUNET_SYSERR;
490 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
491 "Sending %u bytes to peer `%s' on address `%s' %X %i\n", msgbuf_size,
492 GNUNET_i2s (target), ((addr != NULL) && (addrlen != 0)) ? http_plugin_address_to_string(plugin, addr, addrlen) : "<inbound>", session, force_address);
495 struct Session *s = NULL;
497 /* look for existing connection */
498 s = lookup_session (plugin, target, session, addr, addrlen, 1);
500 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
501 "%s existing session: %s\n", (s!=NULL) ? "Found" : "NOT Found", ((s != NULL) && (s->inbound == GNUNET_YES)) ? "inbound" : "outbound");
504 /* create new outbound connection */
507 if (plugin->max_connections <= plugin->cur_connections)
509 GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING, plugin->name,
510 "Maximum number of connections reached, "
511 "cannot connect to peer `%s'\n",
512 GNUNET_i2s (target));
517 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
518 "Initiiating new connection to peer `%s'\n",
519 GNUNET_i2s (target));
521 s = create_session (plugin, target, addr, addrlen, cont, cont_cls);
522 GNUNET_CONTAINER_DLL_insert (plugin->head, plugin->tail, s);
523 // initiate new connection
524 if (GNUNET_SYSERR == (res = client_connect (s)))
526 GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
528 return GNUNET_SYSERR;
532 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
534 msg->size = msgbuf_size;
536 msg->buf = (char *) &msg[1];
537 msg->transmit_cont = cont;
538 msg->transmit_cont_cls = cont_cls;
539 memcpy (msg->buf, msgbuf, msgbuf_size);
541 if (s->inbound == GNUNET_NO)
544 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
545 "Using outbound client session to send to `%s'\n",
546 GNUNET_i2s (target));
548 client_send (s, msg);
551 if (s->inbound == GNUNET_YES)
553 server_send (s, msg);
556 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
557 "Using inbound server session to send to `%s'\n",
558 GNUNET_i2s (target));
567 * Function that can be used to force the plugin to disconnect
568 * from the given peer and cancel all previous transmissions
569 * (and their continuationc).
572 * @param target peer from which to disconnect
575 http_plugin_disconnect (void *cls, const struct GNUNET_PeerIdentity *target)
577 struct Plugin *plugin = cls;
578 struct Session *next = NULL;
579 struct Session *s = plugin->head;
584 if (0 == memcmp (target, &s->target, sizeof (struct GNUNET_PeerIdentity)))
586 if (s->inbound == GNUNET_NO)
587 GNUNET_assert (GNUNET_OK == client_disconnect (s));
589 GNUNET_assert (GNUNET_OK == server_disconnect (s));
590 GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
598 nat_add_address (void *cls, int add_remove, const struct sockaddr *addr,
601 struct Plugin *plugin = cls;
602 struct IPv4HttpAddressWrapper *w_t4 = NULL;
603 struct IPv6HttpAddressWrapper *w_t6 = NULL;
606 af = addr->sa_family;
610 w_t4 = plugin->ipv4_addr_head;
613 int res = memcmp (&w_t4->addr,
614 (struct sockaddr_in *) addr,
615 sizeof (struct sockaddr_in));
623 w_t4 = GNUNET_malloc (sizeof (struct IPv4HttpAddressWrapper));
624 memcpy (&w_t4->addr, (struct sockaddr_in *) addr,
625 sizeof (struct sockaddr_in));
627 GNUNET_CONTAINER_DLL_insert (plugin->ipv4_addr_head,
628 plugin->ipv4_addr_tail, w_t4);
631 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
632 "Notifying transport to add IPv4 address `%s'\n",
633 http_plugin_address_to_string(NULL, &w_t4->addr, sizeof (struct sockaddr_in)));
635 plugin->env->notify_address (plugin->env->cls, add_remove, &w_t4->addr, sizeof (struct sockaddr_in));
639 w_t6 = plugin->ipv6_addr_head;
642 int res = memcmp (&w_t6->addr,
643 (struct sockaddr_in6 *) addr,
644 sizeof (struct sockaddr_in6));
652 w_t6 = GNUNET_malloc (sizeof (struct IPv6HttpAddressWrapper));
653 memcpy (&w_t6->addr, (struct sockaddr_in6 *) addr,
654 sizeof (struct sockaddr_in6));
656 GNUNET_CONTAINER_DLL_insert (plugin->ipv6_addr_head,
657 plugin->ipv6_addr_tail, w_t6);
660 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
661 "Notifying transport to add IPv6 address `%s'\n",
662 http_plugin_address_to_string(NULL, &w_t6->addr, sizeof (struct sockaddr_in6)));
664 plugin->env->notify_address (plugin->env->cls, add_remove, &w_t6->addr, sizeof (struct sockaddr_in6));
673 nat_remove_address (void *cls, int add_remove, const struct sockaddr *addr,
676 struct Plugin *plugin = cls;
677 struct IPv4HttpAddressWrapper *w_t4 = NULL;
678 struct IPv6HttpAddressWrapper *w_t6 = NULL;
681 af = addr->sa_family;
685 w_t4 = plugin->ipv4_addr_head;
688 int res = memcmp (&(w_t4->addr.sin_addr),
689 &((struct sockaddr_in *) addr)->sin_addr,
690 sizeof (struct in_addr));
700 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
701 "Notifying transport to remove IPv4 address `%s'\n",
702 http_plugin_address_to_string(NULL, &w_t4->addr, sizeof (struct sockaddr_in)));
704 plugin->env->notify_address (plugin->env->cls, add_remove, &w_t4->addr,
705 sizeof (struct sockaddr_in));
707 GNUNET_CONTAINER_DLL_remove (plugin->ipv4_addr_head, plugin->ipv4_addr_tail,
712 w_t6 = plugin->ipv6_addr_head;
715 int res = memcmp (&(w_t6->addr.sin6_addr),
716 &((struct sockaddr_in6 *) addr)->sin6_addr,
717 sizeof (struct in6_addr));
726 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
727 "Notifying transport to remove IPv6 address `%s'\n",
728 http_plugin_address_to_string(NULL, &w_t6->addr, sizeof (struct sockaddr_in6)));
730 plugin->env->notify_address (plugin->env->cls, add_remove, &w_t6->addr,
731 sizeof (struct sockaddr_in6 ));
733 GNUNET_CONTAINER_DLL_remove (plugin->ipv6_addr_head, plugin->ipv6_addr_tail,
744 * Our external IP address/port mapping has changed.
746 * @param cls closure, the 'struct LocalAddrList'
747 * @param add_remove GNUNET_YES to mean the new public IP address, GNUNET_NO to mean
748 * the previous (now invalid) one
749 * @param addr either the previous or the new public IP address
750 * @param addrlen actual lenght of the address
753 nat_port_map_callback (void *cls, int add_remove, const struct sockaddr *addr,
756 GNUNET_assert (cls != NULL);
757 struct Plugin *plugin = cls;
760 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
761 "NPMC called %s to address `%s'\n",
762 (add_remove == GNUNET_NO) ? "remove" : "add",
763 GNUNET_a2s (addr, addrlen));
765 /* convert 'addr' to our internal format */
771 nat_add_address (cls, add_remove, addr, addrlen);
776 nat_remove_address (cls, add_remove, addr, addrlen);
783 start_report_addresses (struct Plugin *plugin)
786 struct sockaddr **addrs;
790 GNUNET_SERVICE_get_server_addresses (plugin->name, plugin->env->cfg,
793 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
794 _("FOUND %u addresses\n"),res);
797 if (res != GNUNET_SYSERR)
800 GNUNET_NAT_register (plugin->env->cfg, GNUNET_YES, plugin->port,
802 (const struct sockaddr **) addrs, addrlens,
803 &nat_port_map_callback, NULL,
809 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
811 GNUNET_a2s (addrs[res], addrlens[res]));
813 GNUNET_assert (addrs[res] != NULL);
814 GNUNET_free (addrs[res]);
816 GNUNET_free_non_null (addrs);
817 GNUNET_free_non_null (addrlens);
822 GNUNET_NAT_register (plugin->env->cfg, GNUNET_YES, 0, 0, NULL, NULL,
828 stop_report_addresses (struct Plugin *plugin)
830 /* Stop NAT handle */
831 GNUNET_NAT_unregister (plugin->nat);
833 /* Clean up addresses */
834 struct IPv4HttpAddressWrapper *w_t4;
835 struct IPv6HttpAddressWrapper *w_t6;
837 while (plugin->ipv4_addr_head != NULL)
839 w_t4 = plugin->ipv4_addr_head;
840 GNUNET_CONTAINER_DLL_remove (plugin->ipv4_addr_head, plugin->ipv4_addr_tail,
845 while (plugin->ipv6_addr_head != NULL)
847 w_t6 = plugin->ipv6_addr_head;
848 GNUNET_CONTAINER_DLL_remove (plugin->ipv6_addr_head, plugin->ipv6_addr_tail,
855 configure_plugin (struct Plugin *plugin)
860 if (GNUNET_CONFIGURATION_have_value
861 (plugin->env->cfg, plugin->name, "USE_IPv4"))
864 GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
868 plugin->ipv4 = GNUNET_YES;
871 if (GNUNET_CONFIGURATION_have_value
872 (plugin->env->cfg, plugin->name, "USE_IPv6"))
875 GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
879 plugin->ipv6 = GNUNET_YES;
881 if ((plugin->ipv4 == GNUNET_NO) && (plugin->ipv6 == GNUNET_NO))
883 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
885 ("Neither IPv4 nor IPv6 are enabled! Fix in configuration\n"),
890 /* Reading port number from config file */
891 unsigned long long port;
894 GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg, plugin->name,
895 "PORT", &port)) || (port > 65535))
897 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
898 _("Port is required! Fix in configuration\n"),
906 char * bind4_address = NULL;
907 if ((plugin->ipv4 == GNUNET_YES) && (GNUNET_YES ==
908 GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg, plugin->name,
909 "BINDTO", &bind4_address)))
911 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
912 "Binding %s plugin to specific IPv4 address: `%s'\n",
913 plugin->protocol, bind4_address);
914 plugin->server_addr_v4 = GNUNET_malloc (sizeof (struct sockaddr_in));
915 if (1 != inet_pton (AF_INET, bind4_address, &plugin->server_addr_v4->sin_addr))
917 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
918 _("Specific IPv4 address `%s' for plugin %s in configuration file is invalid! Binding to all addresses!\n"),
919 bind4_address, plugin->protocol);
920 GNUNET_free (plugin->server_addr_v4);
921 plugin->server_addr_v4 = NULL;
925 plugin->server_addr_v4->sin_family = AF_INET;
926 plugin->server_addr_v4->sin_port = htons (plugin->port);
928 GNUNET_free (bind4_address);
932 char * bind6_address = NULL;
933 if ((plugin->ipv6 == GNUNET_YES) && (GNUNET_YES ==
934 GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg, plugin->name,
935 "BINDTO6", &bind6_address)))
937 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
938 "Binding %s plugin to specific IPv6 address: `%s'\n",
939 plugin->protocol, bind6_address);
940 plugin->server_addr_v6 = GNUNET_malloc (sizeof (struct sockaddr_in6));
941 if (1 != inet_pton (AF_INET6, bind6_address, &plugin->server_addr_v6->sin6_addr))
943 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
944 _("Specific IPv6 address `%s' for plugin %s in configuration file is invalid! Binding to all addresses!\n"),
945 bind6_address, plugin->protocol);
946 GNUNET_free (plugin->server_addr_v6);
947 plugin->server_addr_v6 = NULL;
951 plugin->server_addr_v6->sin6_family = AF_INET6;
952 plugin->server_addr_v6->sin6_port = htons (plugin->port);
954 GNUNET_free (bind6_address);
958 /* Optional parameters */
959 unsigned long long maxneigh;
961 GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg, plugin->name,
962 "MAX_CONNECTIONS", &maxneigh))
964 plugin->max_connections = maxneigh;
971 * Entry point for the plugin.
974 LIBGNUNET_PLUGIN_TRANSPORT_INIT (void *cls)
976 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
977 struct GNUNET_TRANSPORT_PluginFunctions *api;
978 struct Plugin *plugin;
981 plugin = GNUNET_malloc (sizeof (struct Plugin));
983 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
985 api->send = &http_plugin_send;
986 api->disconnect = &http_plugin_disconnect;
987 api->address_pretty_printer = &http_plugin_address_pretty_printer;
988 api->check_address = &http_plugin_address_suggested;
989 api->address_to_string = &http_plugin_address_to_string;
992 plugin->name = "transport-https";
993 plugin->protocol = "https";
995 plugin->name = "transport-http";
996 plugin->protocol = "http";
998 /* Configure plugin from configuration */
1000 res = configure_plugin (plugin);
1001 if (res == GNUNET_SYSERR)
1003 GNUNET_free_non_null (plugin->server_addr_v4);
1004 GNUNET_free_non_null (plugin->server_addr_v6);
1005 GNUNET_free (plugin);
1011 res = client_start (plugin);
1012 if (res == GNUNET_SYSERR)
1014 GNUNET_free_non_null (plugin->server_addr_v4);
1015 GNUNET_free_non_null (plugin->server_addr_v6);
1016 GNUNET_free (plugin);
1022 res = server_start (plugin);
1023 if (res == GNUNET_SYSERR)
1025 server_stop (plugin);
1026 client_stop (plugin);
1028 GNUNET_free_non_null (plugin->server_addr_v4);
1029 GNUNET_free_non_null (plugin->server_addr_v6);
1030 GNUNET_free (plugin);
1035 /* Report addresses to transport service */
1036 start_report_addresses (plugin);
1039 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1040 "Plugin `%s' loaded\n", plugin->name);
1048 * Exit point from the plugin.
1051 LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
1053 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1054 struct Plugin *plugin = api->cls;
1055 struct Session *s = NULL;
1057 /* Stop reporting addresses to transport service */
1058 stop_report_addresses (plugin);
1060 /* cleaning up sessions */
1064 struct Session *t = s->next;
1066 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1067 "Disconnecting `%s' \n", GNUNET_i2s (&s->target));
1069 if (s->inbound == GNUNET_NO)
1070 GNUNET_assert (GNUNET_OK == client_disconnect (s));
1072 GNUNET_assert (GNUNET_OK == server_disconnect (s));
1074 GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
1080 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1081 "Stopping server\n");
1084 server_stop (plugin);
1087 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1088 "Stopping client\n");
1091 client_stop (plugin);
1095 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1096 "Plugin `%s' unloaded\n", plugin->name);
1099 GNUNET_free_non_null (plugin->server_addr_v4);
1100 GNUNET_free_non_null (plugin->server_addr_v6);
1101 GNUNET_free (plugin);
1107 /* end of plugin_transport_http.c */