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) 2007-2008 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 version 3 as
24 * published by the Free Software Foundation.
26 * uAnytun is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
31 * You should have received a copy of the GNU General Public License
32 * along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
39 #include <arpa/inet.h>
41 typedef uint8_t u_int8_t;
42 typedef uint16_t u_int16_t;
43 typedef uint32_t u_int32_t;
44 typedef uint64_t u_int64_t;
45 /* typedef int8_t int8_t; */
46 /* typedef int16_t int16_t; */
47 /* typedef int32_t int32_t; */
48 /* typedef int64_t int64_t; */
50 typedef u_int32_t window_size_t;
52 typedef u_int32_t seq_nr_t;
53 #define SEQ_NR_T_NTOH(a) ntohl(a)
54 #define SEQ_NR_T_HTON(a) htonl(a)
55 #define SEQ_NR_MAX UINT32_MAX
57 typedef u_int16_t sender_id_t;
58 #define SENDER_ID_T_NTOH(a) ntohs(a)
59 #define SENDER_ID_T_HTON(a) htons(a)
61 typedef u_int16_t payload_type_t;
62 #define PAYLOAD_TYPE_T_NTOH(a) ntohs(a)
63 #define PAYLOAD_TYPE_T_HTON(a) htons(a)
65 typedef u_int16_t mux_t;
66 #define MUX_T_NTOH(a) ntohs(a)
67 #define MUX_T_HTON(a) htons(a)
69 typedef u_int32_t satp_prf_label_t;
70 #define SATP_PRF_LABEL_T_NTOH(a) ntohl(a)
71 #define SATP_PRF_LABEL_T_HTON(a) htonl(a)
73 struct buffer_struct {
77 typedef struct buffer_struct buffer_t;