2 This file is part of GNUnet.
3 Copyright (C) 2014 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.
10 GNUnet is distributed in the hope that it will be useful, but
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., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
22 #include "gnunet_util_lib.h"
24 #include "gnunet_statistics_service.h"
25 #include "gnunet_peerinfo_service.h"
27 #include "cadet_protocol.h"
28 #include "cadet_path.h"
30 #include "gnunet-service-cadet_hello.h"
31 #include "gnunet-service-cadet_peer.h"
33 #define LOG(level, ...) GNUNET_log_from(level,"cadet-hll",__VA_ARGS__)
36 /******************************************************************************/
37 /******************************** STRUCTS **********************************/
38 /******************************************************************************/
42 /******************************************************************************/
43 /******************************* GLOBALS ***********************************/
44 /******************************************************************************/
47 * Global handle to the statistics service.
49 extern struct GNUNET_STATISTICS_Handle *stats;
52 * Local peer own ID (memory efficient handle).
54 extern GNUNET_PEER_Id myid;
57 * Local peer own ID (full value).
59 extern struct GNUNET_PeerIdentity my_full_id;
63 * Don't try to recover tunnels if shutting down.
65 extern int shutting_down;
69 * Hello message of local peer.
71 const struct GNUNET_HELLO_Message *mine;
74 * Handle to peerinfo service.
76 static struct GNUNET_PEERINFO_Handle *peerinfo;
81 struct GNUNET_PEERINFO_NotifyContext* nc;
84 /******************************************************************************/
85 /******************************** STATIC ***********************************/
86 /******************************************************************************/
89 * Process each hello message received from peerinfo.
91 * @param cls Closure (unused).
92 * @param peer Identity of the peer.
93 * @param hello Hello of the peer.
94 * @param err_msg Error message.
97 got_hello (void *cls, const struct GNUNET_PeerIdentity *id,
98 const struct GNUNET_HELLO_Message *hello,
101 struct CadetPeer *peer;
103 if (NULL == id || NULL == hello)
105 LOG (GNUNET_ERROR_TYPE_DEBUG, " hello with id %p and msg %p\n", id, hello);
108 LOG (GNUNET_ERROR_TYPE_DEBUG, " hello for %s (%d bytes), expires on %s\n",
109 GNUNET_i2s (id), GNUNET_HELLO_size (hello),
110 GNUNET_STRINGS_absolute_time_to_string (GNUNET_HELLO_get_last_expiration(hello)));
112 GCP_set_hello (peer, hello);
114 if (GCP_get_short_id (peer) == myid)
115 mine = GCP_get_hello (peer);
119 /******************************************************************************/
120 /******************************** API ***********************************/
121 /******************************************************************************/
124 * Initialize the hello subsystem.
126 * @param c Configuration.
129 GCH_init (const struct GNUNET_CONFIGURATION_Handle *c)
131 LOG (GNUNET_ERROR_TYPE_DEBUG, "init\n");
132 GNUNET_assert (NULL == nc);
133 peerinfo = GNUNET_PEERINFO_connect (c);
134 nc = GNUNET_PEERINFO_notify (c, GNUNET_NO, &got_hello, NULL);
139 * Shut down the hello subsystem.
146 GNUNET_PEERINFO_notify_cancel (nc);
149 if (NULL != peerinfo)
151 GNUNET_PEERINFO_disconnect (peerinfo);
158 * Get own hello message.
160 * @return Own hello message.
162 const struct GNUNET_HELLO_Message *
170 * Get another peer's hello message.
172 * @param id ID of the peer whose hello message is requested.
174 * @return Hello message, if any (NULL possible).
176 const struct GNUNET_HELLO_Message *
177 GCH_get (const struct GNUNET_PeerIdentity *id)
179 return GCP_get_hello (GCP_get (id));
184 * Convert a hello message to a string.
186 * @param h Hello message.
189 GCH_2s (const struct GNUNET_HELLO_Message *h)
191 return "hello (TODO)";