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ipbroadcast.c (167341) ipbroadcast.c (167512)
1/*-
2 * Copyright (c) 2007 Bruce M. Simpson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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24 * SUCH DAMAGE.
25 */
26
27/*
28 * Test utility for IPv4 broadcast sockets.
29 */
30
31#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2007 Bruce M. Simpson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 15 unchanged lines hidden (view full) ---

24 * SUCH DAMAGE.
25 */
26
27/*
28 * Test utility for IPv4 broadcast sockets.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: head/tools/regression/netinet/ipbroadcast/ipbroadcast.c 167341 2007-03-08 14:37:00Z bms $");
32__FBSDID("$FreeBSD: head/tools/regression/netinet/ipbroadcast/ipbroadcast.c 167512 2007-03-13 23:36:48Z bms $");
33
34#include <sys/param.h>
35#include <sys/types.h>
36#include <sys/ioctl.h>
37#include <sys/socket.h>
38
39#include <net/if.h>
40#include <net/if_dl.h>

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55#include <unistd.h>
56#include <netdb.h>
57#include <libgen.h>
58
59#ifndef IP_SENDIF
60#define IP_SENDIF 24 /* XXX */
61#endif
62
33
34#include <sys/param.h>
35#include <sys/types.h>
36#include <sys/ioctl.h>
37#include <sys/socket.h>
38
39#include <net/if.h>
40#include <net/if_dl.h>

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55#include <unistd.h>
56#include <netdb.h>
57#include <libgen.h>
58
59#ifndef IP_SENDIF
60#define IP_SENDIF 24 /* XXX */
61#endif
62
63#ifndef IPPROTO_ZEROHOP
64#define IPPROTO_ZEROHOP 114 /* any 0-hop protocol */
65#endif
66
63#define DEFAULT_PORT 6698
64#define DEFAULT_PAYLOAD_SIZE 24
65#define DEFAULT_TTL 1
66
67#define MY_CMSG_SIZE \
68 CMSG_SPACE(sizeof(struct in_addr)) + \
69 CMSG_SPACE(sizeof(struct sockaddr_dl))
70
71static char *progname = NULL;
72
73static void
74usage(void)
75{
76
77 fprintf(stderr, "IPv4 broadcast test program. Sends a %d byte UDP "
78 "datagram to <dest>:<port>.\n\n", DEFAULT_PAYLOAD_SIZE);
79 fprintf(stderr,
80"usage: %s [-1] [-A laddr] [-b] [-B] [-d] [-i iface] [-l len]\n"
67#define DEFAULT_PORT 6698
68#define DEFAULT_PAYLOAD_SIZE 24
69#define DEFAULT_TTL 1
70
71#define MY_CMSG_SIZE \
72 CMSG_SPACE(sizeof(struct in_addr)) + \
73 CMSG_SPACE(sizeof(struct sockaddr_dl))
74
75static char *progname = NULL;
76
77static void
78usage(void)
79{
80
81 fprintf(stderr, "IPv4 broadcast test program. Sends a %d byte UDP "
82 "datagram to <dest>:<port>.\n\n", DEFAULT_PAYLOAD_SIZE);
83 fprintf(stderr,
84"usage: %s [-1] [-A laddr] [-b] [-B] [-d] [-i iface] [-l len]\n"
81" [-p port] [-r] [-s srcaddr] [-t ttl] <dest>\n",
85" [-p port] [-R] [-s srcaddr] [-t ttl] <dest>\n",
82 progname);
83 fprintf(stderr, "-1: Set IP_ONESBCAST\n");
84 fprintf(stderr, "-A: specify laddr (default: INADDR_ANY)\n");
85 fprintf(stderr, "-b: bind socket to <laddr>:<lport>\n");
86 fprintf(stderr, "-B: Set SO_BROADCAST\n");
87 fprintf(stderr, "-d: Set SO_DONTROUTE\n");
88 fprintf(stderr, "-i: Set IP_SENDIF <iface> (if supported)\n");
89 fprintf(stderr, "-l: Set payload size to <len>\n");
90 fprintf(stderr, "-p: Set local and remote port (default: %d)\n",
91 DEFAULT_PORT);
86 progname);
87 fprintf(stderr, "-1: Set IP_ONESBCAST\n");
88 fprintf(stderr, "-A: specify laddr (default: INADDR_ANY)\n");
89 fprintf(stderr, "-b: bind socket to <laddr>:<lport>\n");
90 fprintf(stderr, "-B: Set SO_BROADCAST\n");
91 fprintf(stderr, "-d: Set SO_DONTROUTE\n");
92 fprintf(stderr, "-i: Set IP_SENDIF <iface> (if supported)\n");
93 fprintf(stderr, "-l: Set payload size to <len>\n");
94 fprintf(stderr, "-p: Set local and remote port (default: %d)\n",
95 DEFAULT_PORT);
96 fprintf(stderr, "-R: Use raw IP (protocol %d)\n", IPPROTO_ZEROHOP);
92#if 0
93 fprintf(stderr, "-r: Fill datagram with random bytes\n");
94#endif
95 fprintf(stderr, "-s: Set IP_SENDSRCADDR to <srcaddr>\n");
96 fprintf(stderr, "-t: Set IP_TTL to <ttl>\n");
97
98 exit(EXIT_FAILURE);
99}

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115 char *laddr_s;
116 char *srcaddr_s;
117 int ch;
118 int dobind;
119 int dobroadcast;
120 int dontroute;
121 int doonesbcast;
122 int dorandom;
97#if 0
98 fprintf(stderr, "-r: Fill datagram with random bytes\n");
99#endif
100 fprintf(stderr, "-s: Set IP_SENDSRCADDR to <srcaddr>\n");
101 fprintf(stderr, "-t: Set IP_TTL to <ttl>\n");
102
103 exit(EXIT_FAILURE);
104}

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120 char *laddr_s;
121 char *srcaddr_s;
122 int ch;
123 int dobind;
124 int dobroadcast;
125 int dontroute;
126 int doonesbcast;
127 int dorandom;
128 int dorawip;
123 size_t buflen;
124 ssize_t nbytes;
125 int portno;
126 int ret;
127 int s;
128 socklen_t soptlen;
129 int soptval;
130 int ttl;
131
132 dobind = 0;
133 dobroadcast = 0;
134 dontroute = 0;
135 doonesbcast = 0;
136 dorandom = 0;
129 size_t buflen;
130 ssize_t nbytes;
131 int portno;
132 int ret;
133 int s;
134 socklen_t soptlen;
135 int soptval;
136 int ttl;
137
138 dobind = 0;
139 dobroadcast = 0;
140 dontroute = 0;
141 doonesbcast = 0;
142 dorandom = 0;
143 dorawip = 0;
137
138 ifname = NULL;
139 dstaddr.s_addr = INADDR_ANY;
140 laddr_s = NULL;
141 srcaddr_s = NULL;
142 portno = DEFAULT_PORT;
143 ttl = DEFAULT_TTL;
144
145 buf = NULL;
146 buflen = DEFAULT_PAYLOAD_SIZE;
147
148 progname = basename(argv[0]);
144
145 ifname = NULL;
146 dstaddr.s_addr = INADDR_ANY;
147 laddr_s = NULL;
148 srcaddr_s = NULL;
149 portno = DEFAULT_PORT;
150 ttl = DEFAULT_TTL;
151
152 buf = NULL;
153 buflen = DEFAULT_PAYLOAD_SIZE;
154
155 progname = basename(argv[0]);
149 while ((ch = getopt(argc, argv, "1A:bBdi:l:p:rs:t:")) != -1) {
156 while ((ch = getopt(argc, argv, "1A:bBdi:l:p:Rrs:t:")) != -1) {
150 switch (ch) {
151 case '1':
152 doonesbcast = 1;
153 break;
154 case 'A':
155 laddr_s = optarg;
156 break;
157 case 'b':

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167 ifname = optarg;
168 break;
169 case 'l':
170 buflen = atoi(optarg);
171 break;
172 case 'p':
173 portno = atoi(optarg);
174 break;
157 switch (ch) {
158 case '1':
159 doonesbcast = 1;
160 break;
161 case 'A':
162 laddr_s = optarg;
163 break;
164 case 'b':

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174 ifname = optarg;
175 break;
176 case 'l':
177 buflen = atoi(optarg);
178 break;
179 case 'p':
180 portno = atoi(optarg);
181 break;
182 case 'R':
183 dorawip = 1;
184 break;
175 case 'r':
176 dorandom = 1;
177 break;
178 case 's':
179 srcaddr_s = optarg;
180 break;
181 case 't':
182 ttl = atoi(optarg);

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191
192 if (argc != 1)
193 usage();
194 if (argv[0] == NULL || inet_aton(argv[0], &dstaddr) == 0)
195 usage();
196 /* IP_SENDSRCADDR and IP_SENDIF are mutually exclusive just now. */
197 if (srcaddr_s != NULL && ifname != NULL)
198 usage();
185 case 'r':
186 dorandom = 1;
187 break;
188 case 's':
189 srcaddr_s = optarg;
190 break;
191 case 't':
192 ttl = atoi(optarg);

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201
202 if (argc != 1)
203 usage();
204 if (argv[0] == NULL || inet_aton(argv[0], &dstaddr) == 0)
205 usage();
206 /* IP_SENDSRCADDR and IP_SENDIF are mutually exclusive just now. */
207 if (srcaddr_s != NULL && ifname != NULL)
208 usage();
199 s = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
209 if (dorawip) {
210 if (geteuid() != 0)
211 fprintf(stderr, "WARNING: not running as root.\n");
212 s = socket(PF_INET, SOCK_RAW, IPPROTO_ZEROHOP);
213 } else {
214 s = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
215 }
200 if (s == -1) {
201 perror("socket");
202 exit(EXIT_FAILURE);
203 }
204
205 if (dontroute) {
206 soptval = 1;
207 soptlen = sizeof(soptval);

--- 143 unchanged lines hidden --- 		216 if (s == -1) {
217 perror("socket");
218 exit(EXIT_FAILURE);
219 }
220
221 if (dontroute) {
222 soptval = 1;
223 soptlen = sizeof(soptval);

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