/*
This file is part of GNUnet.
- (C) 2011 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2011-2016 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
* @file ats/gnunet-service-ats_scheduling.c
* @brief ats service, interaction with 'scheduling' API
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#include "platform.h"
+#include "gnunet-service-ats_addresses.h"
#include "gnunet-service-ats_scheduling.h"
#include "ats.h"
-
-struct SchedulingClient
-{
- struct SchedulingClient * next;
-
- struct SchedulingClient * prev;
-
- struct GNUNET_SERVER_Client *client;
-
-};
-
-
/**
- * Head of linked list of all clients to this service.
+ * Actual handle to the client.
*/
-static struct SchedulingClient *ac_head;
+static struct GNUNET_SERVICE_Client *my_client;
+
/**
- * Tail of linked list of all clients to this service.
+ * Register a new scheduling client.
+ *
+ * @param client handle of the new client
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
-static struct SchedulingClient *ac_tail;
-
-
-void
-GAS_add_scheduling_client (struct GNUNET_SERVER_Client *client)
+int
+GAS_scheduling_add_client (struct GNUNET_SERVICE_Client *client)
{
- struct SchedulingClient *ac;
-
- ac = GNUNET_malloc (sizeof (struct SchedulingClient));
- ac->client = client;
- GNUNET_SERVER_client_keep (client);
- GNUNET_CONTAINER_DLL_insert(ac_head, ac_tail, ac);
+ if (NULL != my_client)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "This ATS already has a scheduling client, refusing new scheduling client for now.\n");
+ return GNUNET_SYSERR;
+ }
+ my_client = client;
+ return GNUNET_OK;
}
+/**
+ * Unregister a client (which may have been a scheduling client,
+ * but this is not assured).
+ *
+ * @param client handle of the (now dead) client
+ */
void
-GAS_remove_scheduling_client (struct GNUNET_SERVER_Client *client)
+GAS_scheduling_remove_client (struct GNUNET_SERVICE_Client *client)
{
+ if (my_client != client)
+ return;
+ GAS_addresses_destroy_all ();
+ my_client = NULL;
}
+/**
+ * Transmit the given address suggestion and bandwidth update to all scheduling
+ * clients.
+ *
+ * @param peer peer for which this is an address suggestion
+ * @param session_id session ID to use for the given client
+ * @param bandwidth_out assigned outbound bandwidth
+ * @param bandwidth_in assigned inbound bandwidth
+ */
void
-GAS_handle_request_address (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
+GAS_scheduling_transmit_address_suggestion (const struct GNUNET_PeerIdentity *peer,
+ uint32_t session_id,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
{
- // struct RequestAddressMessage * msg = (struct RequestAddressMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "REQUEST_ADDRESS");
+ struct GNUNET_MQ_Envelope *env;
+ struct AddressSuggestionMessage *msg;
+ if (NULL == my_client)
+ return;
+ GNUNET_STATISTICS_update (GSA_stats,
+ "# address suggestions made",
+ 1,
+ GNUNET_NO);
+ env = GNUNET_MQ_msg (msg,
+ GNUNET_MESSAGE_TYPE_ATS_ADDRESS_SUGGESTION);
+ msg->peer = *peer;
+ msg->session_id = htonl (session_id);
+ msg->bandwidth_out = bandwidth_out;
+ msg->bandwidth_in = bandwidth_in;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "ATS sends quota for peer `%s': (in/out) %u/%u\n",
+ GNUNET_i2s (peer),
+ (unsigned int) ntohl (bandwidth_in.value__),
+ (unsigned int) ntohl (bandwidth_out.value__));
+ GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (my_client),
+ env);
}
+/**
+ * Handle 'address add' messages from clients.
+ *
+ * @param m the request message
+ */
void
-GAS_handle_address_update (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
+GAS_handle_address_add (const struct AddressAddMessage *m)
{
-#if 0
- struct AddressUpdateMessage * msg = (struct AddressUpdateMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ADDRESS_UPDATE");
-
- struct GNUNET_TRANSPORT_ATS_Information *am;
- char *pm;
-
- size_t size = ntohs (msg->header.size);
- if ((size <= sizeof (struct AddressUpdateMessage)) || (size >= GNUNET_SERVER_MAX_MESSAGE_SIZE))
- {
- GNUNET_break (0);
- return;
- }
-
- size_t ats_count = ntohs (msg->ats_count);
- size_t addr_len = ntohs (msg->address_length);
- size_t plugin_len = ntohs (msg->plugin_name_length) + 1 ;
-
- if (
- (plugin_len >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
- (addr_len >= GNUNET_SERVER_MAX_MESSAGE_SIZE) ||
- (addr_len >= GNUNET_SERVER_MAX_MESSAGE_SIZE / sizeof (struct GNUNET_TRANSPORT_ATS_Information)) )
- {
- GNUNET_break (0);
- return;
- }
-
- struct ATS_Address * aa = GNUNET_malloc (sizeof (struct ATS_Address) +
- ats_count * sizeof (struct GNUNET_TRANSPORT_ATS_Information) +
- addr_len +
- plugin_len);
-
-
-
- memcpy (&aa->peer, &msg->peer, sizeof (struct GNUNET_PeerIdentity));
- aa->addr_len = addr_len;
- aa->ats_count = ats_count;
- aa->ats = (struct GNUNET_TRANSPORT_ATS_Information *) &aa[1];
+ const char *address;
+ const char *plugin_name;
+ uint16_t address_length;
+ uint16_t plugin_name_length;
+ struct GNUNET_ATS_Properties prop;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received `%s' message\n",
+ "ADDRESS_ADD");
+ address_length = ntohs (m->address_length);
+ plugin_name_length = ntohs (m->plugin_name_length);
+ address = (const char *) &m[1];
+ if (plugin_name_length != 0)
+ plugin_name = &address[address_length];
+ else
+ plugin_name = "";
+ GNUNET_STATISTICS_update (GSA_stats,
+ "# addresses created",
+ 1,
+ GNUNET_NO);
+ GNUNET_ATS_properties_ntoh (&prop,
+ &m->properties);
+ GNUNET_break (GNUNET_ATS_NET_UNSPECIFIED != prop.scope);
+ GAS_addresses_add (&m->peer,
+ plugin_name,
+ address,
+ address_length,
+ ntohl (m->address_local_info),
+ ntohl (m->session_id),
+ &prop);
+}
- am = (struct GNUNET_TRANSPORT_ATS_Information*) &msg[1];
- memcpy (&aa->ats, am, ats_count * sizeof (struct GNUNET_TRANSPORT_ATS_Information));
- pm = (char *) &am[ats_count];
- memcpy (aa->addr, pm, addr_len);
- memcpy (aa->plugin, &pm[plugin_len], plugin_len);
- aa->session_id = ntohl(msg->session_id);
- GNUNET_assert (GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(addresses, &aa->peer.hashPubKey, aa, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
-#endif
+/**
+ * Handle 'address update' messages from clients.
+ *
+ * @param m the request message
+ */
+void
+GAS_handle_address_update (const struct AddressUpdateMessage *m)
+{
+ struct GNUNET_ATS_Properties prop;
+
+ GNUNET_STATISTICS_update (GSA_stats,
+ "# address updates received",
+ 1,
+ GNUNET_NO);
+ GNUNET_ATS_properties_ntoh (&prop,
+ &m->properties);
+ GAS_addresses_update (&m->peer,
+ ntohl (m->session_id),
+ &prop);
}
+/**
+ * Handle 'address destroyed' messages from clients.
+ *
+ * @param m the request message
+ */
void
-GAS_handle_address_destroyed (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
+GAS_handle_address_destroyed (const struct AddressDestroyedMessage *m)
{
-#if 0
- // struct AddressDestroyedMessage * msg = (struct AddressDestroyedMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ADDRESS_DESTROYED");
-/*
- struct GNUNET_PeerIdentity *peer = &msg->peer;
- struct ATS_Address * aa = find_address_by_addr (peer);
- GNUNET_CONTAINER_multihashmap_remove(addresses, peer, aa);
- GNUNET_free (aa);*/
-#endif
+ struct GNUNET_MQ_Envelope *env;
+ struct GNUNET_ATS_SessionReleaseMessage *srm;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received `%s' message\n",
+ "ADDRESS_DESTROYED");
+ GNUNET_STATISTICS_update (GSA_stats,
+ "# addresses destroyed",
+ 1,
+ GNUNET_NO);
+ GAS_addresses_destroy (&m->peer,
+ ntohl (m->session_id));
+ env = GNUNET_MQ_msg (srm,
+ GNUNET_MESSAGE_TYPE_ATS_SESSION_RELEASE);
+ srm->session_id = m->session_id;
+ srm->peer = m->peer;
+ GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (my_client),
+ env);
}
+
/* end of gnunet-service-ats_scheduling.c */
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