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Diffstat (limited to 'src/nat/libnatpmp/natpmp.h')
-rw-r--r--src/nat/libnatpmp/natpmp.h202
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diff --git a/src/nat/libnatpmp/natpmp.h b/src/nat/libnatpmp/natpmp.h
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1/* $Id: natpmp.h,v 1.11 2009/02/27 22:38:05 nanard Exp $ */
2/* libnatpmp
3 * Copyright (c) 2007-2008, Thomas BERNARD <miniupnp@free.fr>
4 * http://miniupnp.free.fr/libnatpmp.html
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
17#ifndef __NATPMP_H__
18#define __NATPMP_H__
19
20/* NAT-PMP Port as defined by the NAT-PMP draft */
21#define NATPMP_PORT (5351)
22
23#include <stdint.h>
24#include <time.h>
25#include <sys/time.h>
26#ifdef WIN32
27#include <winsock2.h>
28#include <stdint.h>
29#define in_addr_t uint32_t
30#include "declspec.h"
31#else
32#define LIBSPEC
33#include <netinet/in.h>
34#include <sys/socket.h>
35#endif
36
37typedef struct
38{
39 int s; /* socket */
40 struct sockaddr *addr;
41 socklen_t addrlen;
42 uint8_t gateway[16]; /* default gateway (IPv4 or IPv6) */
43 int has_pending_request;
44 unsigned char pending_request[12];
45 int pending_request_len;
46 int try_number;
47 struct timeval retry_time;
48} natpmp_t;
49
50typedef struct
51{
52 uint16_t type; /* NATPMP_RESPTYPE_* */
53 uint16_t resultcode; /* NAT-PMP response code */
54 uint32_t epoch; /* Seconds since start of epoch */
55 union
56 {
57 struct
58 {
59 int family;
60 struct in_addr addr;
61 struct in6_addr addr6;
62 } publicaddress;
63 struct
64 {
65 uint16_t privateport;
66 uint16_t mappedpublicport;
67 uint32_t lifetime;
68 } newportmapping;
69 } pnu;
70} natpmpresp_t;
71
72/* possible values for type field of natpmpresp_t */
73#define NATPMP_RESPTYPE_PUBLICADDRESS (0)
74#define NATPMP_RESPTYPE_UDPPORTMAPPING (1)
75#define NATPMP_RESPTYPE_TCPPORTMAPPING (2)
76
77/* Values to pass to sendnewportmappingrequest() */
78#define NATPMP_PROTOCOL_UDP (1)
79#define NATPMP_PROTOCOL_TCP (2)
80
81/* return values */
82/* NATPMP_ERR_INVALIDARGS : invalid arguments passed to the function */
83#define NATPMP_ERR_INVALIDARGS (-1)
84/* NATPMP_ERR_SOCKETERROR : socket() failed. check errno for details */
85#define NATPMP_ERR_SOCKETERROR (-2)
86/* NATPMP_ERR_CANNOTGETGATEWAY : can't get default gateway IP */
87#define NATPMP_ERR_CANNOTGETGATEWAY (-3)
88/* NATPMP_ERR_CLOSEERR : close() failed. check errno for details */
89#define NATPMP_ERR_CLOSEERR (-4)
90/* NATPMP_ERR_RECVFROM : recvfrom() failed. check errno for details */
91#define NATPMP_ERR_RECVFROM (-5)
92/* NATPMP_ERR_NOPENDINGREQ : readnatpmpresponseorretry() called while
93 * no NAT-PMP request was pending */
94#define NATPMP_ERR_NOPENDINGREQ (-6)
95/* NATPMP_ERR_NOGATEWAYSUPPORT : the gateway does not support NAT-PMP */
96#define NATPMP_ERR_NOGATEWAYSUPPORT (-7)
97/* NATPMP_ERR_CONNECTERR : connect() failed. check errno for details */
98#define NATPMP_ERR_CONNECTERR (-8)
99/* NATPMP_ERR_WRONGPACKETSOURCE : packet not received from the network gateway */
100#define NATPMP_ERR_WRONGPACKETSOURCE (-9)
101/* NATPMP_ERR_SENDERR : send() failed. check errno for details */
102#define NATPMP_ERR_SENDERR (-10)
103/* NATPMP_ERR_FCNTLERROR : fcntl() failed. check errno for details */
104#define NATPMP_ERR_FCNTLERROR (-11)
105/* NATPMP_ERR_GETTIMEOFDAYERR : gettimeofday() failed. check errno for details */
106#define NATPMP_ERR_GETTIMEOFDAYERR (-12)
107/* NATPMP_ERR_BINDERROR : bind() failed. check errno for details */
108#define NATPMP_ERR_BINDERROR (-13)
109/* NATPMP_ERR_ADDRERROR : gateway does not use the same inet protocol as the passed address */
110#define NATPMP_ERR_ADDRERROR (-14)
111
112/* */
113#define NATPMP_ERR_UNSUPPORTEDVERSION (-15)
114#define NATPMP_ERR_UNSUPPORTEDOPCODE (-16)
115
116/* Errors from the server : */
117#define NATPMP_ERR_UNDEFINEDERROR (-49)
118#define NATPMP_ERR_NOTAUTHORIZED (-51)
119#define NATPMP_ERR_NETWORKFAILURE (-52)
120#define NATPMP_ERR_OUTOFRESOURCES (-53)
121
122/* NATPMP_TRYAGAIN : no data available for the moment. try again later */
123#define NATPMP_TRYAGAIN (-100)
124
125/* initnatpmp()
126 * initialize a natpmp_t object
127 * Return values :
128 * 0 = OK
129 * NATPMP_ERR_INVALIDARGS
130 * NATPMP_ERR_SOCKETERROR
131 * NATPMP_ERR_FCNTLERROR
132 * NATPMP_ERR_CANNOTGETGATEWAY
133 * NATPMP_ERR_CONNECTERR */
134LIBSPEC int initnatpmp (natpmp_t * p);
135
136/* closenatpmp()
137 * close resources associated with a natpmp_t object
138 * Return values :
139 * 0 = OK
140 * NATPMP_ERR_INVALIDARGS
141 * NATPMP_ERR_CLOSEERR */
142LIBSPEC int closenatpmp (natpmp_t * p);
143
144/* sendpublicaddressrequest()
145 * send a public address NAT-PMP request to the network gateway
146 * Return values :
147 * 2 = OK (size of the request)
148 * NATPMP_ERR_INVALIDARGS
149 * NATPMP_ERR_SENDERR */
150LIBSPEC int sendpublicaddressrequest (natpmp_t * p);
151
152/* sendnewportmappingrequest()
153 * send a new port mapping NAT-PMP request to the network gateway
154 * Arguments :
155 * protocol is either NATPMP_PROTOCOL_TCP or NATPMP_PROTOCOL_UDP,
156 * lifetime is in seconds.
157 * To remove a port mapping, set lifetime to zero.
158 * To remove all port mappings to the host, set lifetime and both ports
159 * to zero.
160 * Return values :
161 * 12 = OK (size of the request)
162 * NATPMP_ERR_INVALIDARGS
163 * NATPMP_ERR_SENDERR */
164LIBSPEC int sendnewportmappingrequest (natpmp_t * p, int protocol,
165 uint16_t privateport,
166 uint16_t publicport,
167 uint32_t lifetime);
168
169/* getnatpmprequesttimeout()
170 * fills the timeval structure with the timeout duration of the
171 * currently pending NAT-PMP request.
172 * Return values :
173 * 0 = OK
174 * NATPMP_ERR_INVALIDARGS
175 * NATPMP_ERR_GETTIMEOFDAYERR
176 * NATPMP_ERR_NOPENDINGREQ */
177LIBSPEC int getnatpmprequesttimeout (natpmp_t * p, struct timeval *timeout);
178
179/* readnatpmpresponseorretry()
180 * fills the natpmpresp_t structure if possible
181 * Return values :
182 * 0 = OK
183 * NATPMP_TRYAGAIN
184 * NATPMP_ERR_INVALIDARGS
185 * NATPMP_ERR_NOPENDINGREQ
186 * NATPMP_ERR_NOGATEWAYSUPPORT
187 * NATPMP_ERR_RECVFROM
188 * NATPMP_ERR_WRONGPACKETSOURCE
189 * NATPMP_ERR_UNSUPPORTEDVERSION
190 * NATPMP_ERR_UNSUPPORTEDOPCODE
191 * NATPMP_ERR_NOTAUTHORIZED
192 * NATPMP_ERR_NETWORKFAILURE
193 * NATPMP_ERR_OUTOFRESOURCES
194 * NATPMP_ERR_UNSUPPORTEDOPCODE
195 * NATPMP_ERR_UNDEFINEDERROR */
196LIBSPEC int readnatpmpresponseorretry (natpmp_t * p, natpmpresp_t * response);
197
198#ifdef ENABLE_STRNATPMPERR
199LIBSPEC const char *strnatpmperr (int t);
200#endif
201
202#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-24 20:38:52 +0000