1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* The author of this code is John Ioannidis, ji@tla.org,
* (except when noted otherwise).
*
* This code was written for BSD/OS in Athens, Greece, in November 1995.
*
* Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
* by Angelos D. Keromytis, kermit@forthnet.gr.
*
* Copyright (C) 1995, 1996, 1997 by John Ioannidis and Angelos D. Keromytis.
*
* Permission to use, copy, and modify this software without fee
* is hereby granted, provided that this entire notice is included in
* all copies of any software which is or includes a copy or
* modification of this software.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTY. IN PARTICULAR, NEITHER AUTHOR MAKES ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*/
#include <sys/param.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/mbuf.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/route.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <netns/ns.h>
#include <netiso/iso.h>
#include <netccitt/x25.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "net/encap.h"
#define IFT_ENC 0x37
char buf[1024];
main(argc, argv)
int argc;
char **argv;
{
int sd;
struct encap_msghdr *em;
struct sockaddr_encap *dst, *msk, *gw;
struct sockaddr_dl *dl;
u_char *opts;
if (argc != 3)
fprintf(stderr, "usage: %s if# ipaddr\n", argv[0]), exit(1);
sd = socket(AF_ENCAP, SOCK_RAW, AF_UNSPEC);
if (sd < 0)
perror("socket"), exit(1);
em = (struct encap_msghdr *)&buf[0];
em->em_msglen = EMT_IFADDR_LEN;
em->em_version = 0;
em->em_type = EMT_IFADDR;
em->em_ifa.s_addr = inet_addr(argv[2]);
em->em_ifn = atoi(argv[1]);
if (write(sd, buf, EMT_IFADDR_LEN) != EMT_IFADDR_LEN)
perror("write");
}
|
