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author | Martin Schanzenbach <schanzen@gnunet.org> | 2023-10-19 11:59:19 +0200 |
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committer | Martin Schanzenbach <schanzen@gnunet.org> | 2023-10-19 11:59:19 +0200 |
commit | 858647ab4b2465430800689bda2c2837601c48d1 (patch) | |
tree | 048818f625a501cd3c4fc22c814f4e1717353a22 /src/exit/exit.h | |
parent | 579d9473bb75072303789599b23be9b0203336fc (diff) | |
download | gnunet-858647ab4b2465430800689bda2c2837601c48d1.tar.gz gnunet-858647ab4b2465430800689bda2c2837601c48d1.zip |
BUILD: Move exit/pt to service
Diffstat (limited to 'src/exit/exit.h')
-rw-r--r-- | src/exit/exit.h | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/src/exit/exit.h b/src/exit/exit.h deleted file mode 100644 index 41dad6246..000000000 --- a/src/exit/exit.h +++ /dev/null | |||
@@ -1,298 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2012 Christian Grothoff | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
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 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file exit/exit.h | ||
23 | * @brief format for cadet messages exchanged between VPN service and exit daemon | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #ifndef EXIT_H | ||
27 | #define EXIT_H | ||
28 | |||
29 | #include "gnunet_util_lib.h" | ||
30 | |||
31 | GNUNET_NETWORK_STRUCT_BEGIN | ||
32 | |||
33 | /** | ||
34 | * Message send via cadet to an exit daemon to initiate forwarding of | ||
35 | * TCP data to a local service. | ||
36 | */ | ||
37 | struct GNUNET_EXIT_TcpServiceStartMessage | ||
38 | { | ||
39 | /** | ||
40 | * Type is #GNUNET_MESSAGE_TYPE_VPN_TCP_TO_SERVICE_START | ||
41 | */ | ||
42 | struct GNUNET_MessageHeader header; | ||
43 | |||
44 | /** | ||
45 | * Always 0. | ||
46 | */ | ||
47 | uint32_t reserved GNUNET_PACKED; | ||
48 | |||
49 | /** | ||
50 | * Skeleton of the TCP header to send. Port numbers are to | ||
51 | * be replaced and the checksum may be updated as necessary. | ||
52 | */ | ||
53 | struct GNUNET_TUN_TcpHeader tcp_header; | ||
54 | |||
55 | /* followed by TCP payload */ | ||
56 | }; | ||
57 | |||
58 | |||
59 | /** | ||
60 | * Message send via cadet to an exit daemon to initiate forwarding of | ||
61 | * TCP data to the Internet. | ||
62 | */ | ||
63 | struct GNUNET_EXIT_TcpInternetStartMessage | ||
64 | { | ||
65 | /** | ||
66 | * Type is #GNUNET_MESSAGE_TYPE_VPN_TCP_TO_INTERNET_START | ||
67 | */ | ||
68 | struct GNUNET_MessageHeader header; | ||
69 | |||
70 | /** | ||
71 | * Address family, AF_INET or AF_INET6, in network byte order. | ||
72 | */ | ||
73 | int32_t af GNUNET_PACKED; | ||
74 | |||
75 | /** | ||
76 | * Skeleton of the TCP header to send. Port numbers are to | ||
77 | * be replaced and the checksum may be updated as necessary. | ||
78 | */ | ||
79 | struct GNUNET_TUN_TcpHeader tcp_header; | ||
80 | |||
81 | /* followed by IP address of the destination; either | ||
82 | 'struct in_addr' or 'struct in6_addr', depending on af */ | ||
83 | |||
84 | /* followed by TCP payload */ | ||
85 | }; | ||
86 | |||
87 | |||
88 | /** | ||
89 | * Message send via cadet between VPN and entry and an exit daemon to | ||
90 | * transmit TCP data between the VPN entry and an exit session. This | ||
91 | * format is used for both Internet-exits and service-exits and | ||
92 | * in both directions (VPN to exit and exit to VPN). | ||
93 | */ | ||
94 | struct GNUNET_EXIT_TcpDataMessage | ||
95 | { | ||
96 | /** | ||
97 | * Type is #GNUNET_MESSAGE_TYPE_VPN_TCP_DATA | ||
98 | */ | ||
99 | struct GNUNET_MessageHeader header; | ||
100 | |||
101 | /** | ||
102 | * Always 0. | ||
103 | */ | ||
104 | uint32_t reserved GNUNET_PACKED; | ||
105 | |||
106 | /** | ||
107 | * Skeleton of the TCP header to send. Port numbers are to | ||
108 | * be replaced and the checksum may be updated as necessary. (The destination port number should not be changed, as it contains the desired destination port.) | ||
109 | */ | ||
110 | struct GNUNET_TUN_TcpHeader tcp_header; | ||
111 | |||
112 | /* followed by TCP payload */ | ||
113 | }; | ||
114 | |||
115 | |||
116 | /** | ||
117 | * Message send via cadet to an exit daemon to send | ||
118 | * UDP data to a local service. | ||
119 | */ | ||
120 | struct GNUNET_EXIT_UdpServiceMessage | ||
121 | { | ||
122 | /** | ||
123 | * Type is #GNUNET_MESSAGE_TYPE_VPN_UDP_TO_SERVICE | ||
124 | */ | ||
125 | struct GNUNET_MessageHeader header; | ||
126 | |||
127 | /** | ||
128 | * Source port to use for the UDP request (0 to use a random port). In NBO. | ||
129 | */ | ||
130 | uint16_t source_port GNUNET_PACKED; | ||
131 | |||
132 | /** | ||
133 | * Destination port to use for the UDP request. In NBO. | ||
134 | */ | ||
135 | uint16_t destination_port GNUNET_PACKED; | ||
136 | |||
137 | /* followed by UDP payload */ | ||
138 | }; | ||
139 | |||
140 | |||
141 | /** | ||
142 | * Message send via cadet to an exit daemon to forward | ||
143 | * UDP data to the Internet. | ||
144 | */ | ||
145 | struct GNUNET_EXIT_UdpInternetMessage | ||
146 | { | ||
147 | /** | ||
148 | * Type is #GNUNET_MESSAGE_TYPE_VPN_UDP_TO_INTERNET | ||
149 | */ | ||
150 | struct GNUNET_MessageHeader header; | ||
151 | |||
152 | /** | ||
153 | * Address family, AF_INET or AF_INET6, in network byte order. | ||
154 | */ | ||
155 | int32_t af GNUNET_PACKED; | ||
156 | |||
157 | /** | ||
158 | * Source port to use for the UDP request (0 to use a random port). In NBO. | ||
159 | */ | ||
160 | uint16_t source_port GNUNET_PACKED; | ||
161 | |||
162 | /** | ||
163 | * Destination port to use for the UDP request. In NBO. | ||
164 | */ | ||
165 | uint16_t destination_port GNUNET_PACKED; | ||
166 | |||
167 | /* followed by IP address of the destination; either | ||
168 | 'struct in_addr' or 'struct in6_addr', depending on af */ | ||
169 | |||
170 | /* followed by UDP payload */ | ||
171 | }; | ||
172 | |||
173 | |||
174 | /** | ||
175 | * Message send from exit daemon back to the UDP entry point | ||
176 | * (used for both Internet and Service exit replies). | ||
177 | */ | ||
178 | struct GNUNET_EXIT_UdpReplyMessage | ||
179 | { | ||
180 | /** | ||
181 | * Type is #GNUNET_MESSAGE_TYPE_VPN_UDP_REPLY | ||
182 | */ | ||
183 | struct GNUNET_MessageHeader header; | ||
184 | |||
185 | /** | ||
186 | * Source port to use for the UDP reply (0 to use the same | ||
187 | * port as for the original request). In NBO. | ||
188 | */ | ||
189 | uint16_t source_port GNUNET_PACKED; | ||
190 | |||
191 | /** | ||
192 | * Destination port to use for the UDP reply (0 to use the same | ||
193 | * port as for the original request). In NBO. | ||
194 | */ | ||
195 | uint16_t destination_port GNUNET_PACKED; | ||
196 | |||
197 | /* followed by UDP payload */ | ||
198 | }; | ||
199 | |||
200 | |||
201 | /** | ||
202 | * Message send via cadet to an exit daemon to send | ||
203 | * ICMP data to a local service. | ||
204 | */ | ||
205 | struct GNUNET_EXIT_IcmpServiceMessage | ||
206 | { | ||
207 | /** | ||
208 | * Type is #GNUNET_MESSAGE_TYPE_VPN_ICMP_TO_SERVICE | ||
209 | */ | ||
210 | struct GNUNET_MessageHeader header; | ||
211 | |||
212 | /** | ||
213 | * Address family, AF_INET or AF_INET6, in network byte order. This | ||
214 | * AF value determines if the 'icmp_header' is ICMPv4 or ICMPv6. | ||
215 | * The receiver (exit) may still have to translate (PT) to the services' | ||
216 | * ICMP version (if possible). | ||
217 | */ | ||
218 | int32_t af GNUNET_PACKED; | ||
219 | |||
220 | /** | ||
221 | * ICMP header to use. | ||
222 | */ | ||
223 | struct GNUNET_TUN_IcmpHeader icmp_header; | ||
224 | |||
225 | /* followed by ICMP payload; however, for certain ICMP message | ||
226 | types where the payload is the original IP packet, the payload | ||
227 | is omitted as it is useless for the receiver (who will need | ||
228 | to create some fake payload manually) */ | ||
229 | }; | ||
230 | |||
231 | |||
232 | /** | ||
233 | * Message send via cadet to an exit daemon to forward | ||
234 | * ICMP data to the Internet. | ||
235 | */ | ||
236 | struct GNUNET_EXIT_IcmpInternetMessage | ||
237 | { | ||
238 | /** | ||
239 | * Type is #GNUNET_MESSAGE_TYPE_VPN_ICMP_TO_INTERNET | ||
240 | */ | ||
241 | struct GNUNET_MessageHeader header; | ||
242 | |||
243 | /** | ||
244 | * Address family, AF_INET or AF_INET6, in network byte order. | ||
245 | * Determines both the ICMP version used in the 'icmp_header' and | ||
246 | * the IP address format that is used for the target IP. If | ||
247 | * PT is necessary, the sender has already done it. | ||
248 | */ | ||
249 | int32_t af GNUNET_PACKED; | ||
250 | |||
251 | /** | ||
252 | * ICMP header to use. Must match the target 'af' given | ||
253 | * above. | ||
254 | */ | ||
255 | struct GNUNET_TUN_IcmpHeader icmp_header; | ||
256 | |||
257 | /* followed by IP address of the destination; either | ||
258 | 'struct in_addr' or 'struct in6_addr', depending on af */ | ||
259 | |||
260 | /* followed by ICMP payload; however, for certain ICMP message | ||
261 | types where the payload is the original IP packet, the payload | ||
262 | is omitted as it is useless for the receiver (who will need | ||
263 | to create some fake payload manually) */ | ||
264 | }; | ||
265 | |||
266 | |||
267 | /** | ||
268 | * Message send via cadet to the vpn service to send | ||
269 | * ICMP data to the VPN's TUN interface. | ||
270 | */ | ||
271 | struct GNUNET_EXIT_IcmpToVPNMessage | ||
272 | { | ||
273 | /** | ||
274 | * Type is #GNUNET_MESSAGE_TYPE_VPN_ICMP_TO_VPN | ||
275 | */ | ||
276 | struct GNUNET_MessageHeader header; | ||
277 | |||
278 | /** | ||
279 | * Address family, AF_INET or AF_INET6, in network byte order. | ||
280 | * Useful to determine if this is an ICMPv4 or ICMPv6 header. | ||
281 | */ | ||
282 | int32_t af GNUNET_PACKED; | ||
283 | |||
284 | /** | ||
285 | * ICMP header to use. ICMPv4 or ICMPv6, depending on 'af'. | ||
286 | */ | ||
287 | struct GNUNET_TUN_IcmpHeader icmp_header; | ||
288 | |||
289 | /* followed by ICMP payload; however, for certain ICMP message | ||
290 | types where the payload is the original IP packet, the payload | ||
291 | is omitted as it is useless for the receiver (who will need | ||
292 | to create some fake payload manually) */ | ||
293 | }; | ||
294 | |||
295 | |||
296 | GNUNET_NETWORK_STRUCT_END | ||
297 | |||
298 | #endif | ||