2 This file is part of GNUnet.
3 (C) 2010,2011 Christian Grothoff (and other contributing authors)
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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
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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22 * @file transport/gnunet-service-transport_validation.h
23 * @brief address validation API
24 * @author Christian Grothoff
26 #ifndef GNUNET_SERVICE_TRANSPORT_VALIDATION_H
27 #define GNUNET_SERVICE_TRANSPORT_VALIDATION_H
29 #include "gnunet_statistics_service.h"
30 #include "gnunet_transport_plugin.h"
31 #include "gnunet_util_lib.h"
35 * Start the validation subsystem.
38 GST_validation_start (void);
42 * Stop the validation subsystem.
45 GST_validation_stop (void);
49 * Update if we are using an address for a connection actively right now.
50 * Based on this, the validation module will measure latency for the
51 * address more or less often.
54 * @param plugin_name name of plugin
55 * @param session session
56 * @param sender_address address of the sender as known to the plugin, NULL
57 * if we did not initiate the connection
58 * @param sender_address_len number of bytes in sender_address
59 * @param in_use GNUNET_YES if we are now using the address for a connection,
60 * GNUNET_NO if we are no longer using the address for a connection
63 GST_validation_set_address_use (const struct GNUNET_PeerIdentity *sender,
64 const char *plugin_name, struct Session *session,
65 const void *sender_address,
66 size_t sender_address_len,
71 * Query validation about the latest observed latency on a given
75 * @param plugin_name name of plugin
76 * @param session session
77 * @param sender_address address of the sender as known to the plugin, NULL
78 * if we did not initiate the connection
79 * @param sender_address_len number of bytes in sender_address
80 * @return observed latency of the address, FOREVER if the address was
81 * never successfully validated
83 struct GNUNET_TIME_Relative
84 GST_validation_get_address_latency (const struct GNUNET_PeerIdentity *sender,
85 const char *plugin_name, struct Session *session,
86 const void *sender_address,
87 size_t sender_address_len);
91 * We've received a PING. If appropriate, generate a PONG.
93 * @param sender peer sending the PING
95 * @param plugin_name name of plugin that received the PING
96 * @param session session we got the PING from
97 * @param sender_address address of the sender as known to the plugin, NULL
98 * if we did not initiate the connection
99 * @param sender_address_len number of bytes in sender_address
102 GST_validation_handle_ping (const struct GNUNET_PeerIdentity *sender,
103 const struct GNUNET_MessageHeader *hdr,
104 const char *plugin_name, struct Session *session,
105 const void *sender_address,
106 size_t sender_address_len);
110 * We've received a PONG. Check if it matches a pending PING and
111 * mark the respective address as confirmed.
113 * @param sender peer sending the PONG
114 * @param hdr the PONG
117 GST_validation_handle_pong (const struct GNUNET_PeerIdentity *sender,
118 const struct GNUNET_MessageHeader *hdr);
122 * We've received a HELLO, check which addresses are new and trigger
125 * @param hello the HELLO we received
128 GST_validation_handle_hello (const struct GNUNET_MessageHeader *hello);
132 * Function called for each address (or address status change) that
133 * the validation module is aware of (for the given target).
136 * @param public_key public key for the peer, never NULL
137 * @param target peer this change is about, never NULL
138 * @param valid_until is ZERO if we never validated the address,
139 * otherwise a time up to when we consider it (or was) valid
140 * @param validation_block is FOREVER if the address is for an unsupported plugin (from PEERINFO)
141 * is ZERO if the address is considered valid (no validation needed)
142 * otherwise a time in the future if we're currently denying re-validation
143 * @param plugin_name name of the plugin
144 * @param plugin_address binary address
145 * @param plugin_address_len length of address
147 typedef void (*GST_ValidationAddressCallback) (void *cls,
149 GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded
151 const struct GNUNET_PeerIdentity
153 struct GNUNET_TIME_Absolute
155 struct GNUNET_TIME_Absolute
157 const char *plugin_name,
158 const void *plugin_address,
159 size_t plugin_address_len);
163 * Call the given function for each address for the given target.
165 * @param target peer information is requested for
166 * @param cb function to call; will not be called after this function returns
167 * @param cb_cls closure for 'cb'
170 GST_validation_get_addresses (const struct GNUNET_PeerIdentity *target,
171 GST_ValidationAddressCallback cb, void *cb_cls);
175 /* end of file gnunet-service-transport_validation.h */