diff options
Diffstat (limited to 'src/mesh/gnunet-service-mesh.c')
-rw-r--r-- | src/mesh/gnunet-service-mesh.c | 187 |
1 files changed, 184 insertions, 3 deletions
diff --git a/src/mesh/gnunet-service-mesh.c b/src/mesh/gnunet-service-mesh.c index e63b1ba40..1598603a6 100644 --- a/src/mesh/gnunet-service-mesh.c +++ b/src/mesh/gnunet-service-mesh.c | |||
@@ -22,6 +22,13 @@ | |||
22 | * @file mesh/gnunet-service-mesh.c | 22 | * @file mesh/gnunet-service-mesh.c |
23 | * @brief GNUnet MESH service | 23 | * @brief GNUnet MESH service |
24 | * @author Bartlomiej Polot | 24 | * @author Bartlomiej Polot |
25 | * | ||
26 | * TODO: | ||
27 | * - soft stateing (keep-alive (CHANGE?) / timeout / disconnect) -- not a message issue | ||
28 | * - error reporting (CREATE/CHANGE/ADD/DEL?) -- new message! | ||
29 | * - partial disconnect reporting -- same as error reporting? | ||
30 | * - add vs create? change vs. keep-alive? same msg or different ones? -- thinking... | ||
31 | * - speed requirement specification (change?) in mesh API -- API call | ||
25 | */ | 32 | */ |
26 | 33 | ||
27 | #include <stdint.h> | 34 | #include <stdint.h> |
@@ -30,6 +37,174 @@ | |||
30 | #include "gnunet_core_service.h" | 37 | #include "gnunet_core_service.h" |
31 | #include <netinet/in.h> | 38 | #include <netinet/in.h> |
32 | 39 | ||
40 | |||
41 | /******************************************************************************/ | ||
42 | /******************** MESH NETWORK MESSAGES **************************/ | ||
43 | /******************************************************************************/ | ||
44 | |||
45 | /** | ||
46 | * Message for mesh path management | ||
47 | */ | ||
48 | struct GNUNET_MESH_ManipulatePath | ||
49 | { | ||
50 | /** | ||
51 | * Type: GNUNET_MESSAGE_TYPE_MESH_PATH_[CREATE|CHANGE|ADD|DEL] | ||
52 | * | ||
53 | * Size: sizeof(struct GNUNET_MESH_ManipulatePath) + path_length * sizeof (struct GNUNET_PeerIdentity) | ||
54 | */ | ||
55 | struct GNUNET_MessageHeader header; | ||
56 | |||
57 | /** | ||
58 | * Id of the tunnel this path belongs to, unique in conjunction with the origin. | ||
59 | */ | ||
60 | uint32_t tid GNUNET_PACKED; | ||
61 | |||
62 | /** | ||
63 | * Information about speed requirements. If the tunnel cannot sustain the | ||
64 | * minimum bandwidth, packets are to be dropped. | ||
65 | */ | ||
66 | uint32_t speed_min GNUNET_PACKED; | ||
67 | |||
68 | /** | ||
69 | * path_length structs defining the *whole* path from the origin [0] to the | ||
70 | * final destination [path_length-1]. | ||
71 | */ | ||
72 | // struct GNUNET_PeerIdentity peers[path_length]; | ||
73 | }; | ||
74 | |||
75 | /** | ||
76 | * Message for mesh data traffic to all tunnel targets. | ||
77 | */ | ||
78 | struct GNUNET_MESH_OriginMulticast | ||
79 | { | ||
80 | /** | ||
81 | * Type: GNUNET_MESSAGE_TYPE_DATA_MULTICAST | ||
82 | */ | ||
83 | struct GNUNET_MessageHeader header; | ||
84 | |||
85 | /** | ||
86 | * TID of the tunnel | ||
87 | */ | ||
88 | uint32_t tid GNUNET_PACKED; | ||
89 | |||
90 | /** | ||
91 | * OID of the tunnel | ||
92 | */ | ||
93 | struct GNUNET_PeerIdentity oid; | ||
94 | |||
95 | /** | ||
96 | * FIXME: Some form of authentication | ||
97 | */ | ||
98 | // uint32_t token; | ||
99 | |||
100 | /** | ||
101 | * Payload follows | ||
102 | */ | ||
103 | }; | ||
104 | |||
105 | |||
106 | /** | ||
107 | * Message for mesh data traffic to a particular destination from origin. | ||
108 | */ | ||
109 | struct GNUNET_MESH_DataMessageFromOrigin | ||
110 | { | ||
111 | /** | ||
112 | * Type: GNUNET_MESSAGE_TYPE_DATA_MESSAGE_FROM_ORIGIN | ||
113 | */ | ||
114 | struct GNUNET_MessageHeader header; | ||
115 | |||
116 | /** | ||
117 | * TID of the tunnel | ||
118 | */ | ||
119 | uint32_t tid GNUNET_PACKED; | ||
120 | |||
121 | /** | ||
122 | * OID of the tunnel | ||
123 | */ | ||
124 | struct GNUNET_PeerIdentity oid; | ||
125 | |||
126 | /** | ||
127 | * Destination. | ||
128 | */ | ||
129 | struct GNUNET_PeerIdentity destination; | ||
130 | |||
131 | /** | ||
132 | * FIXME: Some form of authentication | ||
133 | */ | ||
134 | // uint32_t token; | ||
135 | |||
136 | /** | ||
137 | * Payload follows | ||
138 | */ | ||
139 | }; | ||
140 | |||
141 | |||
142 | /** | ||
143 | * Message for mesh data traffic from a tunnel participant to origin. | ||
144 | */ | ||
145 | struct GNUNET_MESH_DataMessageToOrigin | ||
146 | { | ||
147 | /** | ||
148 | * Type: GNUNET_MESSAGE_TYPE_DATA_MESSAGE_TO_ORIGIN | ||
149 | */ | ||
150 | struct GNUNET_MessageHeader header; | ||
151 | |||
152 | /** | ||
153 | * TID of the tunnel | ||
154 | */ | ||
155 | uint32_t tid GNUNET_PACKED; | ||
156 | |||
157 | /** | ||
158 | * OID of the tunnel | ||
159 | */ | ||
160 | struct GNUNET_PeerIdentity oid; | ||
161 | |||
162 | /** | ||
163 | * Sender of the message. | ||
164 | */ | ||
165 | struct GNUNET_PeerIdentity sender; | ||
166 | |||
167 | /** | ||
168 | * FIXME: Some form of authentication | ||
169 | */ | ||
170 | // uint32_t token; | ||
171 | |||
172 | /** | ||
173 | * Payload follows | ||
174 | */ | ||
175 | }; | ||
176 | |||
177 | /** | ||
178 | * Message for mesh flow control | ||
179 | */ | ||
180 | struct GNUNET_MESH_SpeedNotify | ||
181 | { | ||
182 | /** | ||
183 | * Type: GNUNET_MESSAGE_TYPE_DATA_SPEED_NOTIFY | ||
184 | */ | ||
185 | struct GNUNET_MessageHeader header; | ||
186 | |||
187 | /** | ||
188 | * TID of the tunnel | ||
189 | */ | ||
190 | uint32_t tid GNUNET_PACKED; | ||
191 | |||
192 | /** | ||
193 | * OID of the tunnel | ||
194 | */ | ||
195 | struct GNUNET_PeerIdentity oid; | ||
196 | |||
197 | /** | ||
198 | * Slowest link down the path (above minimum speed requirement). | ||
199 | */ | ||
200 | uint32_t speed_min; | ||
201 | |||
202 | }; | ||
203 | |||
204 | /******************************************************************************/ | ||
205 | /************************ DATA STRUCTURES ****************************/ | ||
206 | /******************************************************************************/ | ||
207 | |||
33 | /** | 208 | /** |
34 | * All the states a peer participating in a tunnel can be in. | 209 | * All the states a peer participating in a tunnel can be in. |
35 | */ | 210 | */ |
@@ -183,6 +358,7 @@ struct Clients | |||
183 | 358 | ||
184 | /** | 359 | /** |
185 | * Handler for requests of creating new path | 360 | * Handler for requests of creating new path |
361 | * type: struct GNUNET_CORE_MessageHandler | ||
186 | * | 362 | * |
187 | * @param cls closure | 363 | * @param cls closure |
188 | * @param client the client this message is from | 364 | * @param client the client this message is from |
@@ -212,6 +388,7 @@ handle_client_disconnect (void *cls, struct GNUNET_SERVER_Client *client) | |||
212 | 388 | ||
213 | /** | 389 | /** |
214 | * Core handler for path creation | 390 | * Core handler for path creation |
391 | * struct GNUNET_CORE_MessageHandler | ||
215 | * | 392 | * |
216 | * @param cls closure | 393 | * @param cls closure |
217 | * @param message message | 394 | * @param message message |
@@ -227,6 +404,10 @@ handle_mesh_path_create (void *cls, | |||
227 | *atsi) | 404 | *atsi) |
228 | { | 405 | { |
229 | /* Extract path */ | 406 | /* Extract path */ |
407 | /* Find origin & self */ | ||
408 | /* Search for origin in local tunnels */ | ||
409 | /* Create tunnel / add path */ | ||
410 | /* Retransmit to next link in chain, if any (core_notify + callback) */ | ||
230 | return GNUNET_OK; | 411 | return GNUNET_OK; |
231 | } | 412 | } |
232 | 413 | ||
@@ -269,9 +450,9 @@ static struct GNUNET_CORE_MessageHandler core_handlers[] = { | |||
269 | * Functions to handle messages from clients | 450 | * Functions to handle messages from clients |
270 | */ | 451 | */ |
271 | static struct GNUNET_SERVER_MessageHandler plugin_handlers[] = { | 452 | static struct GNUNET_SERVER_MessageHandler plugin_handlers[] = { |
272 | {&handle_local_path_create, NULL, GNUNET_MESSAGE_TYPE_MESH_PATH_CREATE, 0}, | 453 | {&handle_local_path_create, NULL, GNUNET_MESSAGE_TYPE_LOCAL_PATH_CREATE, 0}, |
273 | {&handle_local_network_traffic, GNUNET_MESSAGE_TYPE_MESH_DATA_GO, 0}, | 454 | {&handle_local_network_traffic, GNUNET_MESSAGE_TYPE_LOCAL_DATA_GO, 0}, |
274 | {&handle_local_network_traffic, GNUNET_MESSAGE_TYPE_MESH_DATA_BACK, 0}, | 455 | {&handle_local_network_traffic, GNUNET_MESSAGE_TYPE_LOCAL_DATA_BACK, 0}, |
275 | {NULL, NULL, 0, 0} | 456 | {NULL, NULL, 0, 0} |
276 | }; | 457 | }; |
277 | 458 | ||