/*
This file is part of GNUnet.
- (C) 2010,2011 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010,2011 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
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.
*/
/**
#define GNUNET_SERVICE_TRANSPORT_VALIDATION_H
#include "gnunet_statistics_service.h"
+#include "gnunet_transport_plugin.h"
#include "gnunet_util_lib.h"
-
+#include "gnunet_hello_lib.h"
/**
* Start the validation subsystem.
+ *
+ * @param max_fds maximum number of fds to use
*/
-void
-GST_validation_start (void);
+void
+GST_validation_start (unsigned int max_fds);
/**
GST_validation_stop (void);
+/**
+ * Update if we are using an address for a connection actively right now.
+ * Based on this, the validation module will measure latency for the
+ * address more or less often.
+ *
+ * @param address the address that we are now using (or not)
+ * @param in_use #GNUNET_YES if we are now using the address for a connection,
+ * #GNUNET_NO if we are no longer using the address for a connection
+ */
+void
+GST_validation_set_address_use (const struct GNUNET_HELLO_Address *address,
+ int in_use);
+
+
+/**
+ * Function called to notify transport users that a neighbour peer changed its
+ * active address.
+ *
+ * @param cls closure
+ * @param address address (never NULL)
+ * @param last_validation point in time when last validation was performed
+ * @param valid_until point in time how long address is valid
+ * @param next_validation point in time when next validation will be performed
+ * @param state state of validation notification
+ */
+typedef void
+(*GST_ValidationChangedCallback) (void *cls,
+ const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_TIME_Absolute last_validation,
+ struct GNUNET_TIME_Absolute valid_until,
+ struct GNUNET_TIME_Absolute next_validation,
+ enum GNUNET_TRANSPORT_ValidationState state);
+
+
+/**
+ * Iterate over all iteration entries
+ *
+ * @param cb function to call
+ * @param cb_cls closure for @a cb
+ */
+void
+GST_validation_iterate (GST_ValidationChangedCallback cb, void *cb_cls);
+
+
/**
* We've received a PING. If appropriate, generate a PONG.
*
* @param sender peer sending the PING
* @param hdr the PING
- * @param plugin_name name of plugin that received the PING
- * @param sender_address address of the sender as known to the plugin, NULL
- * if we did not initiate the connection
- * @param sender_address_len number of bytes in sender_address
+ * @param sender_address address of the sender, NULL if we did not initiate
+ * @param session session we got the PING from
+ * @return #GNUNET_OK if the message was fine, #GNUNET_SYSERR on serious error
*/
-void
+int
GST_validation_handle_ping (const struct GNUNET_PeerIdentity *sender,
- const struct GNUNET_MessageHeader *hdr,
- const char *plugin_name,
- const void *sender_address,
- size_t sender_address_len);
+ const struct GNUNET_MessageHeader *hdr,
+ const struct GNUNET_HELLO_Address *sender_address,
+ struct GNUNET_ATS_Session *session);
/**
*
* @param sender peer sending the PONG
* @param hdr the PONG
- * @param plugin_name name of plugin that received the PONG
- * @param sender_address address of the sender as known to the plugin, NULL
- * if we did not initiate the connection
- * @param sender_address_len number of bytes in sender_address
+ * @return #GNUNET_OK if the message was fine, #GNUNET_SYSERR on serious error
*/
-void
+int
GST_validation_handle_pong (const struct GNUNET_PeerIdentity *sender,
- const struct GNUNET_MessageHeader *hdr,
- const char *plugin_name,
- const void *sender_address,
- size_t sender_address_len);
+ const struct GNUNET_MessageHeader *hdr);
/**
* validation.
*
* @param hello the HELLO we received
+ * @return #GNUNET_OK if the message was fine, #GNUNET_SYSERR on serious error
*/
-void
+int
GST_validation_handle_hello (const struct GNUNET_MessageHeader *hello);
/**
- * Opaque handle to stop incremental validation address callbacks.
+ * Validate an individual address.
+ *
+ * @param address address we should try to validate
*/
-struct GST_ValidationIteratorContext;
+void
+GST_validation_handle_address (const struct GNUNET_HELLO_Address *address);
/**
* the validation module is aware of (for the given target).
*
* @param cls closure
- * @param target peer this change is about, never NULL
- * @param last_validated_at is FOREVER if the address has not been validated (we're currently checking)
- * is ZERO if the address was validated a long time ago (from PEERINFO)
- * otherwise a time in the past if this process validated the address
+ * @param public_key public key for the peer, never NULL
+ * @param valid_until is ZERO if we never validated the address,
+ * otherwise a time up to when we consider it (or was) valid
* @param validation_block is FOREVER if the address is for an unsupported plugin (from PEERINFO)
* is ZERO if the address is considered valid (no validation needed)
* otherwise a time in the future if we're currently denying re-validation
- * @param plugin_name name of the plugin
- * @param plugin_address binary address
- * @param plugin_address_len length of address
+ * @param address the address
*/
-typedef void (*GST_ValidationAddressCallback)(void *cls,
- const struct GNUNET_PeerIdentity *target,
- struct GNUNET_TIME_Absolute last_validated_at,
- struct GNUNET_TIME_Absolute validation_block,
- const char *plugin_name,
- const void *plugin_address,
- size_t plugin_address_len);
+typedef void
+(*GST_ValidationAddressCallback) (void *cls,
+ struct GNUNET_TIME_Absolute valid_until,
+ struct GNUNET_TIME_Absolute validation_block,
+ const struct GNUNET_HELLO_Address *address);
/**
* Call the given function for each address for the given target.
- * Can either give a snapshot (synchronous API) or be continuous.
*
* @param target peer information is requested for
- * @param snapshot_only GNUNET_YES to iterate over addresses once, GNUNET_NO to
- * continue to give information about addresses as it evolves
* @param cb function to call; will not be called after this function returns
- * if snapshot_only is GNUNET_YES
- * @param cb_cls closure for 'cb'
- * @return context to cancel, NULL if 'snapshot_only' is GNUNET_YES
- */
-struct GST_ValidationIteratorContext *
-GST_validation_get_addresses (const struct GNUNET_PeerIdentity *target,
- int snapshot_only,
- GST_ValidationAddressCallback cb,
- void *cb_cls);
-
-
-/**
- * Cancel an active validation address iteration.
- *
- * @param ctx the context of the operation that is cancelled
+ * @param cb_cls closure for @a cb
*/
void
-GST_validation_get_addresses_cancel (struct GST_ValidationIteratorContext *ctx);
-
+GST_validation_get_addresses (const struct GNUNET_PeerIdentity *target,
+ GST_ValidationAddressCallback cb, void *cb_cls);
#endif