aboutsummaryrefslogtreecommitdiff
path: root/src/mesh/mesh_protocol.h
blob: e16f32093a7735b3c6b5f1c114b77540b748deb1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/*
     This file is part of GNUnet.
     (C) 2001 - 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
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     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.
*/

/**
 * @author Bartlomiej Polot
 * @file mesh/mesh_protocol.h
 */

#ifndef MESH_PROTOCOL_H_
#define MESH_PROTOCOL_H_

#ifdef __cplusplus
extern "C"
{
#if 0
  /* keep Emacsens' auto-indent happy */
}
#endif
#endif

/******************************************************************************/
/********************      MESH NETWORK MESSAGES     **************************/
/******************************************************************************/

/**
 * Message for mesh path management
 */
struct GNUNET_MESH_ManipulatePath
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_PATH_[CREATE|CHANGE|ADD|DEL]
     *
     * Size: sizeof(struct GNUNET_MESH_ManipulatePath) +
     *       path_length * sizeof (struct GNUNET_PeerIdentity)
     */
  struct GNUNET_MessageHeader header;

    /**
     * Global id of the tunnel this path belongs to,
     * unique in conjunction with the origin.
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * path_length structs defining the *whole* path from the origin [0] to the
     * final destination [path_length-1].
     */
  /* struct GNUNET_PeerIdentity peers[path_length]; */
};

/**
 * Message for mesh data traffic to all tunnel targets.
 */
struct GNUNET_MESH_Multicast
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_MULTICAST
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

    /**
     * Payload follows
     */
};


/**
 * Message for mesh data traffic to a particular destination from origin.
 */
struct GNUNET_MESH_Unicast
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_UNICAST
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

    /**
     * Destination.
     */
  struct GNUNET_PeerIdentity destination;

    /**
     * Payload follows
     */
};


/**
 * Message for mesh data traffic from a tunnel participant to origin.
 */
struct GNUNET_MESH_ToOrigin
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

    /**
     * Sender of the message.
     */
  struct GNUNET_PeerIdentity sender;

    /**
     * Payload follows
     */
};


/**
 * Message for ack'ing a path
 */
struct GNUNET_MESH_PathACK
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_PATH_ACK
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

    /**
     * ID of the endpoint
     */
  struct GNUNET_PeerIdentity peer_id;

  /* TODO: signature */
};


/**
 * Message for notifying a disconnection in a path
 */
struct GNUNET_MESH_PathBroken
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_PATH_BROKEN
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

    /**
     * ID of the endpoint
     */
  struct GNUNET_PeerIdentity peer1;
  
    /**
     * ID of the endpoint
     */
  struct GNUNET_PeerIdentity peer2;

  /* TODO: signature */
};


/**
 * Message to destroy a tunnel
 */
struct GNUNET_MESH_TunnelDestroy
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_MESH_TUNNEL_DESTROY
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

  /* TODO: signature */
};


/**
 * Message for mesh flow control
 */
struct GNUNET_MESH_SpeedNotify
{
    /**
     * Type: GNUNET_MESSAGE_TYPE_DATA_SPEED_NOTIFY
     */
  struct GNUNET_MessageHeader header;

    /**
     * TID of the tunnel
     */
  uint32_t tid GNUNET_PACKED;

    /**
     * OID of the tunnel
     */
  struct GNUNET_PeerIdentity oid;

    /**
     * Slowest link down the path (above minimum speed requirement).
     */
  uint32_t speed_min;

};

#if 0                           /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif

/* ifndef MES_PROTOCOL_H */
#endif
/* end of mesh_protocol.h */