4 * uAnytun is a tiny implementation of SATP. Unlike Anytun which is a full
5 * featured implementation uAnytun has no support for multiple connections
6 * or synchronisation. It is a small single threaded implementation intended
7 * to act as a client on small platforms.
8 * The secure anycast tunneling protocol (satp) defines a protocol used
9 * for communication between any combination of unicast and anycast
10 * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
11 * mode and allows tunneling of every ETHER TYPE protocol (e.g.
12 * ethernet, ip, arp ...). satp directly includes cryptography and
13 * message authentication based on the methodes used by SRTP. It is
14 * intended to deliver a generic, scaleable and secure solution for
15 * tunneling and relaying of packets of any protocol.
18 * Copyright (C) 2007-2010 Christian Pointner <equinox@anytun.org>
20 * This file is part of uAnytun.
22 * uAnytun is free software: you can redistribute it and/or modify
23 * it under the terms of the GNU General Public License as published by
24 * the Free Software Foundation, either version 3 of the License, or
27 * uAnytun is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
32 * You should have received a copy of the GNU General Public License
33 * along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
36 #ifndef UANYTUN_udp_h_INCLUDED
37 #define UANYTUN_udp_h_INCLUDED
41 #include <sys/types.h>
42 #include <sys/socket.h>
44 typedef struct sockaddr_storage udp_endpoint_t;
46 struct udp_socket_struct {
48 udp_endpoint_t local_end_;
49 struct udp_socket_struct* next_;
51 typedef struct udp_socket_struct udp_socket_t;
55 udp_socket_t* active_sock_;
56 udp_endpoint_t remote_end_;
59 typedef struct udp_struct udp_t;
61 int udp_init(udp_t* sock, const char* local_addr, const char* port, resolv_addr_type_t resolv_type);
62 int udp_init_fd_set(udp_t* sock, fd_set* set);
63 int udp_set_remote(udp_t* sock, const char* remote_addr, const char* port, resolv_addr_type_t resolv_type);
64 void udp_set_active_sock(udp_t* sock, int fd);
65 void udp_close(udp_t* sock);
67 char* udp_endpoint_to_string(udp_endpoint_t e);
68 char* udp_get_remote_end_string(udp_t* sock);
70 int udp_read(udp_t* sock, int fd, u_int8_t* buf, u_int32_t len, udp_endpoint_t* remote_end);
71 int udp_write(udp_t* sock, u_int8_t* buf, u_int32_t len);