GNUnet 0.21.0
nat.h
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2011, 2016 GNUnet e.V.
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
27#ifndef NAT_H
28#define NAT_H
29#include "gnunet_util_lib.h"
30
31
33
39{
44
48 uint32_t dst_ipv4;
49
53 uint16_t dport;
54
58 uint16_t data;
59
63 int32_t is_tcp;
64};
65
66
72{
77
83
88};
89
90
95{
100
104 uint8_t flags;
105
109 uint8_t proto;
110
116
123
124 /* Followed by @e num_addrs addresses of type 'struct
125 sockaddr' */
126
127 /* Followed by @e str_len section name to use for options */
128};
129
130
135{
140
145
149 uint16_t payload_size;
150
151 /* followed by a `struct sockaddr` of @e sender_addr_size bytes */
152
153 /* followed by payload with @e payload_size bytes */
154};
155
156
161{
166
171
176
177 /* followed by a `struct sockaddr` of @e local_addr_size bytes */
178
179 /* followed by a `struct sockaddr` of @e remote_addr_size bytes */
180};
181
182
187{
192
193 /* followed by a `struct sockaddr_in` */
194};
195
196
202{
207
212
217 /* followed by a `struct sockaddr` */
218};
219
220
222
223#endif
#define GNUNET_NETWORK_STRUCT_BEGIN
Define as empty, GNUNET_PACKED should suffice, but this won't work on W32.
#define GNUNET_NETWORK_STRUCT_END
Define as empty, GNUNET_PACKED should suffice, but this won't work on W32;.
#define GNUNET_PACKED
gcc-ism to get packed structs.
GNUNET_NAT_RegisterFlags
Flags specifying the events this client would be interested in being told about.
Definition: nat.h:72
@ GNUNET_NAT_RF_ADDRESSES
This client wants to be informed about changes to our applicable addresses.
Definition: nat.h:82
@ GNUNET_NAT_RF_NONE
This client does not want any notifications.
Definition: nat.h:76
@ GNUNET_NAT_RF_REVERSAL
This client supports address reversal.
Definition: nat.h:87
Header for all communications.
Service notifying the client about changes in the set of addresses it has.
Definition: nat.h:202
int32_t add_remove
GNUNET_YES to add, GNUNET_NO to remove the address from the list.
Definition: nat.h:211
struct GNUNET_MessageHeader header
Header with type GNUNET_MESSAGE_TYPE_NAT_ADDRESS_CHANGE.
Definition: nat.h:206
uint32_t addr_class
Type of the address, an enum GNUNET_NAT_AddressClass in NBO.
Definition: nat.h:216
Service telling a client that connection reversal was requested.
Definition: nat.h:187
struct GNUNET_MessageHeader header
Header with type GNUNET_MESSAGE_TYPE_NAT_CONNECTION_REVERSAL_REQUESTED.
Definition: nat.h:191
Client telling the service to (possibly) handle a STUN message.
Definition: nat.h:135
struct GNUNET_MessageHeader header
Header with type GNUNET_MESSAGE_TYPE_NAT_HANDLE_STUN.
Definition: nat.h:139
uint16_t payload_size
Number of bytes of payload included, in NBO.
Definition: nat.h:149
uint16_t sender_addr_size
Size of the sender address included, in NBO.
Definition: nat.h:144
Message sent by a client to register with its addresses.
Definition: nat.h:95
uint16_t num_addrs
Number of addresses that this service is bound to that follow.
Definition: nat.h:122
uint16_t str_len
Number of bytes in the string that follow which specifies a section name in the configuration.
Definition: nat.h:115
struct GNUNET_MessageHeader header
Header with type GNUNET_MESSAGE_TYPE_NAT_REGISTER.
Definition: nat.h:99
uint8_t flags
An enum GNUNET_NAT_RegisterFlags.
Definition: nat.h:104
uint8_t proto
Client's IPPROTO, e.g.
Definition: nat.h:109
Client asking the service to initiate connection reversal.
Definition: nat.h:161
struct GNUNET_MessageHeader header
Header with type GNUNET_MESSAGE_TYPE_NAT_REQUEST_CONNECTION_REVERSAL.
Definition: nat.h:165
uint16_t local_addr_size
Size of the local address included, in NBO.
Definition: nat.h:170
uint16_t remote_addr_size
Size of the remote address included, in NBO.
Definition: nat.h:175
Request to test NAT traversal, sent to the gnunet-nat-server (not the service!).
Definition: nat.h:39
uint16_t dport
Port to use, 0 to send dummy ICMP response.
Definition: nat.h:53
uint32_t dst_ipv4
IPv4 target IP address.
Definition: nat.h:48
uint16_t data
Data to send OR advertised-port (in NBO) to use for dummy ICMP.
Definition: nat.h:58
int32_t is_tcp
GNUNET_YES for TCP, GNUNET_NO for UDP.
Definition: nat.h:63
struct GNUNET_MessageHeader header
Header with type GNUNET_MESSAGE_TYPE_NAT_TEST.
Definition: nat.h:43