2 This file is part of GNUnet.
3 Copyright (C) 2012 GNUnet e.V.
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.
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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 * @file cadet/cadet_common.c
23 * @brief CADET helper functions
24 * @author Bartlomiej Polot
30 * @brief Translate a fwd variable into a string representation, for logging.
32 * @param fwd Is FWD? (#GNUNET_YES or #GNUNET_NO)
34 * @return String representing FWD or BCK.
39 if (GNUNET_YES == fwd)
43 else if (GNUNET_NO == fwd)
49 /* Not an error, can happen with CONNECTION_BROKEN messages. */
56 * Test if @a bigger is larger than @a smaller.
57 * Considers the case that @a bigger just overflowed
58 * and is thus tiny while @a smaller is still below
62 GC_is_pid_bigger (uint32_t bigger,
65 return (PID_OVERFLOW (smaller, bigger) ||
66 ( (bigger > smaller) &&
67 (! PID_OVERFLOW (bigger, smaller))) );
72 GC_max_pid (uint32_t a, uint32_t b)
74 if (GC_is_pid_bigger(a, b))
81 GC_min_pid (uint32_t a, uint32_t b)
83 if (GC_is_pid_bigger(a, b))
89 const struct GNUNET_HashCode *
90 GC_h2hc (const struct GNUNET_CADET_Hash *id)
92 static struct GNUNET_HashCode hc;
93 GNUNET_memcpy (&hc, id, sizeof (*id));
100 GC_h2s (const struct GNUNET_CADET_Hash *id)
104 GNUNET_memcpy (s, GNUNET_h2s_full (GC_h2hc (id)), 52);
112 * Allocate a string with a hexdump of any binary data.
114 * @param bin Arbitrary binary data.
115 * @param len Length of @a bin in bytes.
116 * @param output Where to write the output (if *output be NULL it's allocated).
118 * @return The size of the output.
121 GC_bin2s (void *bin, unsigned int len, char **output)
130 *output = GNUNET_malloc (s_len);
133 for (i = 0; i < len; i++)
135 SPRINTF (&buf[2 * i], "%2X", data[i]);
137 buf[s_len - 1] = '\0';
143 #if !defined(GNUNET_CULL_LOGGING)
147 static char buf[2][16];
155 * Used to mark the "payload" of a non-payload message.
162 * Request the creation of a path
164 case GNUNET_MESSAGE_TYPE_CADET_CONNECTION_CREATE:
169 * Request the modification of an existing path
171 case GNUNET_MESSAGE_TYPE_CADET_CONNECTION_ACK:
176 * Notify that a connection of a path is no longer valid
178 case GNUNET_MESSAGE_TYPE_CADET_CONNECTION_BROKEN:
183 * At some point, the route will spontaneously change
185 case GNUNET_MESSAGE_TYPE_CADET_PATH_CHANGED:
190 * Transport payload data.
192 case GNUNET_MESSAGE_TYPE_CADET_DATA:
197 * Confirm receipt of payload data.
199 case GNUNET_MESSAGE_TYPE_CADET_DATA_ACK:
204 * Key exchange message.
206 case GNUNET_MESSAGE_TYPE_CADET_KX:
213 case GNUNET_MESSAGE_TYPE_CADET_ENCRYPTED:
218 * Request the destuction of a path
220 case GNUNET_MESSAGE_TYPE_CADET_CONNECTION_DESTROY:
225 * ACK for a data packet.
227 case GNUNET_MESSAGE_TYPE_CADET_ACK:
234 case GNUNET_MESSAGE_TYPE_CADET_POLL:
239 * Announce origin is still alive.
241 case GNUNET_MESSAGE_TYPE_CADET_KEEPALIVE:
248 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_PORT_OPEN:
255 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_PORT_CLOSE:
260 * Ask the cadet service to create a new tunnel
262 case GNUNET_MESSAGE_TYPE_CADET_CHANNEL_CREATE:
267 * Ask the cadet service to destroy a tunnel
269 case GNUNET_MESSAGE_TYPE_CADET_CHANNEL_DESTROY:
274 * Confirm the creation of a channel.
276 case GNUNET_MESSAGE_TYPE_CADET_CHANNEL_ACK:
281 * Confirm the creation of a channel.
283 case GNUNET_MESSAGE_TYPE_CADET_CHANNEL_NACK:
288 * Local payload traffic
290 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_DATA:
295 * Local ACK for data.
297 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_ACK:
302 * Local monitoring of channels.
304 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_CHANNELS:
309 * Local monitoring of a channel.
311 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_CHANNEL:
316 * Local monitoring of service.
318 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_TUNNELS:
323 * Local monitoring of service.
325 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_TUNNEL:
330 * Local information about all connections of service.
332 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_CONNECTIONS:
337 * Local information of service about a specific connection.
339 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_CONNECTION:
344 * Local information about all peers known to the service.
346 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEERS:
351 * Local information of service about a specific peer.
353 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEER:
358 * Traffic (net-cat style) used by the Command Line Interface.
360 case GNUNET_MESSAGE_TYPE_CADET_CLI:
367 case GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_DUMP:
372 * Used to mark the "payload" of a non-payload message.
380 SPRINTF (buf[idx], "{UNK: %5u}", m);
383 SPRINTF (buf[idx], "{%10s}", s);