/*
This file is part of GNUnet.
- (C) 2008 Christian Grothoff (and other contributing authors)
+ (C) 2008, 2009, 2010 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
/**
* @file hostlist/hostlist-server.c
- * @author Christian Grothoff
+ * @author Christian Grothoff, Matthias Wachs
* @brief application to provide an integrated hostlist HTTP server
*/
#include "hostlist-server.h"
#include "gnunet_hello_lib.h"
#include "gnunet_peerinfo_service.h"
+#include "gnunet-daemon-hostlist.h"
+#include "gnunet_resolver_service.h"
+
+#define DEBUG_HOSTLIST_SERVER GNUNET_EXTRA_LOGGING
/**
- * How often should we recalculate our response to hostlist requests?
+ * Handle to the HTTP server as provided by libmicrohttpd for IPv6.
*/
-#define RESPONSE_UPDATE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
+static struct MHD_Daemon *daemon_handle_v6;
/**
- * Handle to the HTTP server as provided by libmicrohttpd.
+ * Handle to the HTTP server as provided by libmicrohttpd for IPv4.
*/
-static struct MHD_Daemon *daemon_handle;
+static struct MHD_Daemon *daemon_handle_v4;
/**
* Our configuration.
static const struct GNUNET_CONFIGURATION_Handle *cfg;
/**
- * Our scheduler.
+ * For keeping statistics.
+ */
+static struct GNUNET_STATISTICS_Handle *stats;
+
+/**
+ * Handle to the core service (NULL until we've connected to it).
+ */
+static struct GNUNET_CORE_Handle *core;
+
+/**
+ * Handle to the peerinfo notify service (NULL until we've connected to it).
+ */
+static struct GNUNET_PEERINFO_NotifyContext *notify;
+
+/**
+ * Our primary task for IPv4.
*/
-static struct GNUNET_SCHEDULER_Handle *sched;
+static GNUNET_SCHEDULER_TaskIdentifier hostlist_task_v4;
/**
- * Our primary task.
+ * Our primary task for IPv6.
*/
-static GNUNET_SCHEDULER_TaskIdentifier hostlist_task;
+static GNUNET_SCHEDULER_TaskIdentifier hostlist_task_v6;
/**
* Our canonical response.
*/
static struct MHD_Response *response;
+/**
+ * NULL if we are not currenlty iterating over peer information.
+ */
+static struct GNUNET_PEERINFO_IteratorContext *pitr;
+
+/**
+ * Handle for accessing peerinfo service.
+ */
+static struct GNUNET_PEERINFO_Handle *peerinfo;
+
/**
* Context for host processor.
*/
char *data;
};
+/**
+ * Set if we are allowed to advertise our hostlist to others.
+ */
+static int advertising;
/**
- * Task that will produce a new response object.
+ * Buffer for the hostlist address
*/
-static void
-update_response (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc);
+static char *hostlist_uri;
/**
{
if (response != NULL)
MHD_destroy_response (response);
- response = MHD_create_response_from_data (results->size,
- results->data, MHD_YES, MHD_NO);
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating hostlist response with %u bytes\n",
+ (unsigned int) results->size);
+#endif
+ response =
+ MHD_create_response_from_data (results->size, results->data, MHD_YES,
+ MHD_NO);
+ if ((daemon_handle_v4 == NULL) && (daemon_handle_v6 == NULL))
+ {
+ MHD_destroy_response (response);
+ response = NULL;
+ }
+ GNUNET_STATISTICS_set (stats, gettext_noop ("bytes in hostlist"),
+ results->size, GNUNET_YES);
GNUNET_free (results);
- /* schedule next update of the response */
- GNUNET_SCHEDULER_add_delayed (sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_IDLE,
- GNUNET_SCHEDULER_NO_TASK,
- RESPONSE_UPDATE_FREQUENCY,
- &update_response,
- NULL);
+}
+
+
+/**
+ * Set 'cls' to GNUNET_YES (we have an address!).
+ *
+ * @param cls closure, an 'int*'
+ * @param address the address (ignored)
+ * @param expiration expiration time (call is ignored if this is in the past)
+ * @return GNUNET_SYSERR to stop iterating (unless expiration has occured)
+ */
+static int
+check_has_addr (void *cls, const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_TIME_Absolute expiration)
+{
+ int *arg = cls;
+
+ if (GNUNET_TIME_absolute_get_remaining (expiration).rel_value == 0)
+ {
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop ("expired addresses encountered"), 1,
+ GNUNET_YES);
+ return GNUNET_YES; /* ignore this address */
+ }
+ *arg = GNUNET_YES;
+ return GNUNET_SYSERR;
}
* hostlist response construction.
*/
static void
-host_processor (void *cls,
- const struct GNUNET_PeerIdentity * peer,
- const struct GNUNET_HELLO_Message *hello,
- uint32_t trust)
+host_processor (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Message *hello, const char *err_msg)
{
struct HostSet *results = cls;
size_t old;
size_t s;
-
+ int has_addr;
+
+ if (err_msg != NULL)
+ {
+ GNUNET_assert (NULL == peer);
+ pitr = NULL;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Error in communication with PEERINFO service: %s\n"),
+ err_msg);
+ return;
+ }
if (peer == NULL)
- {
- finish_response (results);
- return;
- }
+ {
+ pitr = NULL;
+ finish_response (results);
+ return;
+ }
+ if (hello == NULL)
+ return;
+ has_addr = GNUNET_NO;
+ GNUNET_HELLO_iterate_addresses (hello, GNUNET_NO, &check_has_addr, &has_addr);
+ if (GNUNET_NO == has_addr)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "HELLO for peer `%4s' has no address, not suitable for hostlist!\n",
+ GNUNET_i2s (peer));
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop
+ ("HELLOs without addresses encountered (ignored)"),
+ 1, GNUNET_NO);
+ return;
+ }
old = results->size;
- s = GNUNET_HELLO_size(hello);
- if (old + s >= GNUNET_MAX_MALLOC_CHECKED)
- return; /* too large, skip! */
- GNUNET_array_grow (results->data,
- results->size,
- old + s);
+ s = GNUNET_HELLO_size (hello);
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received %u bytes of `%s' from peer `%s' for hostlist.\n",
+ (unsigned int) s, "HELLO", GNUNET_i2s (peer));
+#endif
+ if ((old + s >= GNUNET_MAX_MALLOC_CHECKED) ||
+ (old + s >= MAX_BYTES_PER_HOSTLISTS))
+ {
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop
+ ("bytes not included in hostlist (size limit)"),
+ s, GNUNET_NO);
+ return; /* too large, skip! */
+ }
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Adding peer `%s' to hostlist (%u bytes)\n", GNUNET_i2s (peer),
+ (unsigned int) s);
+#endif
+ GNUNET_array_grow (results->data, results->size, old + s);
memcpy (&results->data[old], hello, s);
}
-/**
- * Task that will produce a new response object.
- */
-static void
-update_response (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct HostSet *results;
-
- results = GNUNET_malloc(sizeof(struct HostSet));
- GNUNET_PEERINFO_for_all (cfg, sched,
- NULL,
- 0,
- GNUNET_TIME_UNIT_MINUTES,
- &host_processor,
- results);
-}
-
/**
* Hostlist access policy (very permissive, allows everything).
*/
static int
-accept_policy_callback (void *cls,
- const struct sockaddr *addr, socklen_t addrlen)
+accept_policy_callback (void *cls, const struct sockaddr *addr,
+ socklen_t addrlen)
{
+ if (NULL == response)
+ {
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received request for hostlist, but I am not yet ready; rejecting!\n");
+#endif
+ return MHD_NO;
+ }
return MHD_YES; /* accept all */
}
* Main request handler.
*/
static int
-access_handler_callback (void *cls,
- struct MHD_Connection *connection,
- const char *url,
- const char *method,
- const char *version,
- const char *upload_data,
- size_t*upload_data_size, void **con_cls)
+access_handler_callback (void *cls, struct MHD_Connection *connection,
+ const char *url, const char *method,
+ const char *version, const char *upload_data,
+ size_t * upload_data_size, void **con_cls)
{
static int dummy;
-
+
if (0 != strcmp (method, MHD_HTTP_METHOD_GET))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Refusing `%s' request to hostlist server\n"), method);
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop
+ ("hostlist requests refused (not HTTP GET)"), 1,
+ GNUNET_YES);
return MHD_NO;
+ }
if (NULL == *con_cls)
- {
- (*con_cls) = &dummy;
- return MHD_YES; /* send 100 continue */
- }
+ {
+ (*con_cls) = &dummy;
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Sending 100 CONTINUE reply\n"));
+#endif
+ return MHD_YES; /* send 100 continue */
+ }
if (*upload_data_size != 0)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Refusing `%s' request with %llu bytes of upload data\n"),
+ method, (unsigned long long) *upload_data_size);
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop
+ ("hostlist requests refused (upload data)"), 1,
+ GNUNET_YES);
return MHD_NO; /* do not support upload data */
+ }
if (response == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Could not handle hostlist request since I do not have a response yet\n"));
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop
+ ("hostlist requests refused (not ready)"), 1,
+ GNUNET_YES);
return MHD_NO; /* internal error, no response yet */
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received request for our hostlist\n"));
+ GNUNET_STATISTICS_update (stats, gettext_noop ("hostlist requests processed"),
+ 1, GNUNET_YES);
return MHD_queue_response (connection, MHD_HTTP_OK, response);
}
+/**
+ * Handler called by core when core is ready to transmit message
+ * @param cls closure
+ * @param size size of buffer to copy message to
+ * @param buf buffer to copy message to
+ */
+static size_t
+adv_transmit_ready (void *cls, size_t size, void *buf)
+{
+ static uint64_t hostlist_adv_count;
+
+ size_t transmission_size;
+ size_t uri_size; /* Including \0 termination! */
+ struct GNUNET_MessageHeader header;
+ char *cbuf;
+
+ if (buf == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmission failed, buffer invalid!\n");
+ return 0;
+ }
+ uri_size = strlen (hostlist_uri) + 1;
+ transmission_size = sizeof (struct GNUNET_MessageHeader) + uri_size;
+ header.type = htons (GNUNET_MESSAGE_TYPE_HOSTLIST_ADVERTISEMENT);
+ header.size = htons (transmission_size);
+ GNUNET_assert (size >= transmission_size);
+ memcpy (buf, &header, sizeof (struct GNUNET_MessageHeader));
+ cbuf = buf;
+ memcpy (&cbuf[sizeof (struct GNUNET_MessageHeader)], hostlist_uri, uri_size);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Sent advertisement message: Copied %u bytes into buffer!\n",
+ (unsigned int) transmission_size);
+ hostlist_adv_count++;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " # Sent advertisement message: %u\n",
+ hostlist_adv_count);
+ GNUNET_STATISTICS_update (stats,
+ gettext_noop ("# hostlist advertisements send"), 1,
+ GNUNET_NO);
+ return transmission_size;
+}
+
+
+/**
+ * Method called whenever a given peer connects.
+ *
+ * @param cls closure
+ * @param peer peer identity this notification is about
+ * @param atsi performance data
+ * @param atsi_count number of records in 'atsi'
+ */
+static void
+connect_handler (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
+{
+ size_t size;
+
+ if (!advertising)
+ return;
+ if (hostlist_uri == NULL)
+ return;
+ size = strlen (hostlist_uri) + 1;
+ if (size + sizeof (struct GNUNET_MessageHeader) >=
+ GNUNET_SERVER_MAX_MESSAGE_SIZE)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ size += sizeof (struct GNUNET_MessageHeader);
+ if (NULL == core)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Asked core to transmit advertisement message with a size of %u bytes to peer `%s'\n",
+ size, GNUNET_i2s (peer));
+ if (NULL ==
+ GNUNET_CORE_notify_transmit_ready (core, GNUNET_YES, 0,
+ GNUNET_ADV_TIMEOUT, peer, size,
+ &adv_transmit_ready, NULL))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Advertisement message could not be queued by core\n"));
+ }
+}
+
+
+/**
+ * Method called whenever a given peer disconnects.
+ *
+ * @param cls closure
+ * @param peer peer identity this notification is about
+ */
+static void
+disconnect_handler (void *cls, const struct GNUNET_PeerIdentity *peer)
+{
+ /* nothing to do */
+}
+
+/**
+ * PEERINFO calls this function to let us know about a possible peer
+ * that we might want to connect to.
+ *
+ * @param cls closure (not used)
+ * @param peer potential peer to connect to
+ * @param hello HELLO for this peer (or NULL)
+ * @param err_msg NULL if successful, otherwise contains error message
+ */
+static void
+process_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Message *hello, const char *err_msg)
+{
+ struct HostSet *results;
+
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Peerinfo is notifying us to rebuild our hostlist\n");
+#endif
+ if (err_msg != NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Error in communication with PEERINFO service\n"));
+ /* return; */
+ }
+ results = GNUNET_malloc (sizeof (struct HostSet));
+ GNUNET_assert (peerinfo != NULL);
+ pitr =
+ GNUNET_PEERINFO_iterate (peerinfo, NULL, GNUNET_TIME_UNIT_MINUTES,
+ &host_processor, results);
+}
+
/**
* Function that queries MHD's select sets and
* starts the task waiting for them.
*/
-static void
-prepare_daemon (void);
+static GNUNET_SCHEDULER_TaskIdentifier
+prepare_daemon (struct MHD_Daemon *daemon_handle);
/**
* and schedule the next run.
*/
static void
-run_daemon (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+run_daemon (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
+ struct MHD_Daemon *daemon_handle = cls;
+
+ if (daemon_handle == daemon_handle_v4)
+ hostlist_task_v4 = GNUNET_SCHEDULER_NO_TASK;
+ else
+ hostlist_task_v6 = GNUNET_SCHEDULER_NO_TASK;
+
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
- prepare_daemon ();
+ if (daemon_handle == daemon_handle_v4)
+ hostlist_task_v4 = prepare_daemon (daemon_handle);
+ else
+ hostlist_task_v6 = prepare_daemon (daemon_handle);
}
* Function that queries MHD's select sets and
* starts the task waiting for them.
*/
-static void
-prepare_daemon ()
+static GNUNET_SCHEDULER_TaskIdentifier
+prepare_daemon (struct MHD_Daemon *daemon_handle)
{
+ GNUNET_SCHEDULER_TaskIdentifier ret;
fd_set rs;
fd_set ws;
fd_set es;
unsigned long long timeout;
int haveto;
struct GNUNET_TIME_Relative tv;
-
- FD_ZERO(&rs);
- FD_ZERO(&ws);
- FD_ZERO(&es);
+
+ FD_ZERO (&rs);
+ FD_ZERO (&ws);
+ FD_ZERO (&es);
wrs = GNUNET_NETWORK_fdset_create ();
wes = GNUNET_NETWORK_fdset_create ();
wws = GNUNET_NETWORK_fdset_create ();
max = -1;
- GNUNET_assert (MHD_YES ==
- MHD_get_fdset (daemon_handle,
- &rs,
- &ws,
- &es,
- &max));
+ GNUNET_assert (MHD_YES == MHD_get_fdset (daemon_handle, &rs, &ws, &es, &max));
haveto = MHD_get_timeout (daemon_handle, &timeout);
if (haveto == MHD_YES)
- tv.value = (uint64_t) timeout;
+ tv.rel_value = (uint64_t) timeout;
else
tv = GNUNET_TIME_UNIT_FOREVER_REL;
- GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
- GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
- GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
- hostlist_task
- = GNUNET_SCHEDULER_add_select (sched,
- GNUNET_NO,
- GNUNET_SCHEDULER_PRIORITY_HIGH,
- GNUNET_SCHEDULER_NO_TASK,
- tv,
- wrs,
- wws,
- &run_daemon,
- NULL);
+ GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
+ ret =
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_HIGH,
+ GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws,
+ &run_daemon, daemon_handle);
GNUNET_NETWORK_fdset_destroy (wrs);
GNUNET_NETWORK_fdset_destroy (wws);
GNUNET_NETWORK_fdset_destroy (wes);
+ return ret;
}
*/
int
GNUNET_HOSTLIST_server_start (const struct GNUNET_CONFIGURATION_Handle *c,
- struct GNUNET_SCHEDULER_Handle *s,
- struct GNUNET_STATISTICS_Handle *st)
+ struct GNUNET_STATISTICS_Handle *st,
+ struct GNUNET_CORE_Handle *co,
+ GNUNET_CORE_ConnectEventHandler *server_ch,
+ GNUNET_CORE_DisconnectEventHandler *server_dh,
+ int advertise)
{
unsigned long long port;
+ char *hostname;
+ size_t size;
- sched = s;
+ advertising = advertise;
+ if (!advertising)
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Advertising not enabled on this hostlist server\n");
+ else
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Advertising enabled on this hostlist server\n");
cfg = c;
- if (-1 == GNUNET_CONFIGURATION_get_value_number (cfg,
- "HOSTLIST",
- "HTTPPORT",
- &port))
+ stats = st;
+ peerinfo = GNUNET_PEERINFO_connect (cfg);
+ if (peerinfo == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Could not access PEERINFO service. Exiting.\n"));
+ return GNUNET_SYSERR;
+ }
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_number (cfg, "HOSTLIST", "HTTPPORT",
+ &port))
return GNUNET_SYSERR;
- daemon_handle = MHD_start_daemon (MHD_USE_IPv6,
- (unsigned short) port,
- &accept_policy_callback,
- NULL,
- &access_handler_callback,
- NULL,
- MHD_OPTION_CONNECTION_LIMIT, 16,
- MHD_OPTION_PER_IP_CONNECTION_LIMIT, 1,
- MHD_OPTION_CONNECTION_TIMEOUT, 16,
- MHD_OPTION_CONNECTION_MEMORY_LIMIT,
- 16 * 1024, MHD_OPTION_END);
- if (daemon_handle == NULL)
+ if ((port == 0) || (port > UINT16_MAX))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Invalid port number %llu. Exiting.\n"), port);
+ return GNUNET_SYSERR;
+ }
+
+ if (GNUNET_SYSERR ==
+ GNUNET_CONFIGURATION_get_value_string (cfg, "HOSTLIST",
+ "EXTERNAL_DNS_NAME", &hostname))
+ hostname = GNUNET_RESOLVER_local_fqdn_get ();
+
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Hostlist service starts on %s:%llu\n"),
+ hostname, port);
+ if (NULL != hostname)
+ {
+ size = strlen (hostname);
+ if (size + 15 > MAX_URL_LEN)
+ {
+ GNUNET_break (0);
+ }
+ else
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Could not start hostlist HTTP server on port %u\n"),
- (unsigned short) port);
- return GNUNET_SYSERR;
+ GNUNET_asprintf (&hostlist_uri, "http://%s:%u/", hostname,
+ (unsigned int) port);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Address to obtain hostlist: `%s'\n"), hostlist_uri);
}
- prepare_daemon ();
+ GNUNET_free (hostname);
+ }
+ daemon_handle_v6 = MHD_start_daemon (MHD_USE_IPv6
+#if DEBUG_HOSTLIST_SERVER
+ | MHD_USE_DEBUG
+#endif
+ , (unsigned short) port,
+ &accept_policy_callback, NULL,
+ &access_handler_callback, NULL,
+ MHD_OPTION_CONNECTION_LIMIT,
+ (unsigned int) 16,
+ MHD_OPTION_PER_IP_CONNECTION_LIMIT,
+ (unsigned int) 1,
+ MHD_OPTION_CONNECTION_TIMEOUT,
+ (unsigned int) 16,
+ MHD_OPTION_CONNECTION_MEMORY_LIMIT,
+ (size_t) (16 * 1024), MHD_OPTION_END);
+ daemon_handle_v4 = MHD_start_daemon (MHD_NO_FLAG
+#if DEBUG_HOSTLIST_SERVER
+ | MHD_USE_DEBUG
+#endif
+ , (unsigned short) port,
+ &accept_policy_callback, NULL,
+ &access_handler_callback, NULL,
+ MHD_OPTION_CONNECTION_LIMIT,
+ (unsigned int) 16,
+ MHD_OPTION_PER_IP_CONNECTION_LIMIT,
+ (unsigned int) 1,
+ MHD_OPTION_CONNECTION_TIMEOUT,
+ (unsigned int) 16,
+ MHD_OPTION_CONNECTION_MEMORY_LIMIT,
+ (size_t) (16 * 1024), MHD_OPTION_END);
+
+ if ((daemon_handle_v6 == NULL) && (daemon_handle_v4 == NULL))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Could not start hostlist HTTP server on port %u\n"),
+ (unsigned short) port);
+ return GNUNET_SYSERR;
+ }
+
+ core = co;
+
+ *server_ch = &connect_handler;
+ *server_dh = &disconnect_handler;
+
+ if (daemon_handle_v4 != NULL)
+ hostlist_task_v4 = prepare_daemon (daemon_handle_v4);
+ if (daemon_handle_v6 != NULL)
+ hostlist_task_v6 = prepare_daemon (daemon_handle_v6);
+
+ notify = GNUNET_PEERINFO_notify (cfg, process_notify, NULL);
+
return GNUNET_OK;
}
void
GNUNET_HOSTLIST_server_stop ()
{
- GNUNET_SCHEDULER_cancel (sched, hostlist_task);
- hostlist_task = GNUNET_SCHEDULER_NO_TASK;
- MHD_stop_daemon (daemon_handle);
- daemon_handle = NULL;
+#if DEBUG_HOSTLIST_SERVER
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Hostlist server shutdown\n");
+#endif
+ if (NULL != notify)
+ {
+ GNUNET_PEERINFO_notify_cancel (notify);
+ notify = NULL;
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != hostlist_task_v6)
+ {
+ GNUNET_SCHEDULER_cancel (hostlist_task_v6);
+ hostlist_task_v6 = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != hostlist_task_v4)
+ {
+ GNUNET_SCHEDULER_cancel (hostlist_task_v4);
+ hostlist_task_v4 = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (pitr != NULL)
+ {
+ GNUNET_PEERINFO_iterate_cancel (pitr);
+ pitr = NULL;
+ }
+ if (NULL != daemon_handle_v4)
+ {
+ MHD_stop_daemon (daemon_handle_v4);
+ daemon_handle_v4 = NULL;
+ }
+ if (NULL != daemon_handle_v6)
+ {
+ MHD_stop_daemon (daemon_handle_v6);
+ daemon_handle_v6 = NULL;
+ }
+ if (response != NULL)
+ {
+ MHD_destroy_response (response);
+ response = NULL;
+ }
+ if (peerinfo != NULL)
+ {
+ GNUNET_PEERINFO_disconnect (peerinfo);
+ peerinfo = NULL;
+ }
+ cfg = NULL;
+ stats = NULL;
+ core = NULL;
}
/* end of hostlist-server.c */
projects / oweals / gnunet.git / blobdiff