Nuke ipblock. A more complete multicast regression test suite is on the way.
This commit is contained in:
Bruce M Simpson
parent
f76f6cfd25
commit
201096bc46
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#
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# $FreeBSD$
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#
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PROG= ipblock
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NO_MAN=
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WARNS?= 6
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.include <bsd.prog.mk>
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@ -1,221 +0,0 @@
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/*-
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* Copyright (c) 2007 Bruce M. Simpson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Test utility for IPv4 multicast source filtering, using UDP.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <signal.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <err.h>
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#include <errno.h>
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#include <getopt.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <libgen.h>
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#include <setjmp.h>
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#define DEFAULT_PORT 6698
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#define BUF_SIZE 2048
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static char *progname = NULL;
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static jmp_buf jmpbuf;
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static void
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sighand(int signo __unused)
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{
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longjmp(jmpbuf, 1);
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}
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static void
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usage(void)
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{
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fprintf(stderr, "IPv4 test program.");
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fprintf(stderr,
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"usage: %s [-b filter-ip] [-g multi-group] [-i iface-ip] [-p port] [-r]\n",
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progname);
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fprintf(stderr, "-b: IPv4 address to filter out\n");
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fprintf(stderr, "-g: IPv4 multicast group to listen on\n");
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fprintf(stderr, "-i: IPv4 address to listen on\n");
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fprintf(stderr, "-p: Set local and remote port (default: %d)\n",
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DEFAULT_PORT);
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fprintf(stderr, "-r: Set SO_REUSEPORT option on socket\n");
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exit(EXIT_FAILURE);
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}
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int
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main(int argc, char *argv[])
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{
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char buf[BUF_SIZE];
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struct in_addr baddr;
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struct in_addr gaddr;
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struct in_addr iaddr;
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struct ip_mreq mreq;
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#ifdef IP_BLOCK_SOURCE
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struct ip_mreq_source mreqs;
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#endif
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struct sockaddr_in from;
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struct sockaddr_in laddr;
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int ch;
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socklen_t fromlen;
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int optval;
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int portno;
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int ret;
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int reuseport;
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ssize_t rlen;
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int s;
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gaddr.s_addr = baddr.s_addr = iaddr.s_addr = INADDR_ANY;
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portno = DEFAULT_PORT;
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reuseport = 0;
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#ifndef IP_BLOCK_SOURCE
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fprintf(stderr, "This program requires a version of FreeBSD with\n"
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"support for source-specific multicast and/or IGMPv3.\n");
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exit(-1);
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#endif
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progname = basename(argv[0]);
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while ((ch = getopt(argc, argv, "b:g:i:p:r")) != -1) {
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switch (ch) {
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case 'b':
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baddr.s_addr = inet_addr(optarg);
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break;
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case 'g':
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gaddr.s_addr = inet_addr(optarg);
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break;
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case 'i':
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iaddr.s_addr = inet_addr(optarg);
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break;
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case 'p':
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portno = atoi(optarg);
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break;
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case 'r':
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reuseport = 1;
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break;
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default:
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usage();
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break;
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 0)
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usage();
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if ((baddr.s_addr == INADDR_ANY) || (gaddr.s_addr == INADDR_ANY) ||
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(iaddr.s_addr == INADDR_ANY))
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usage();
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s = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (s == -1) {
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perror("socket");
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exit(EXIT_FAILURE);
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}
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if (reuseport) {
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optval = 1;
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if (setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &optval,
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sizeof(optval)) < 0) {
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perror("setsockopt SO_REUSEPORT");
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close(s);
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exit(EXIT_FAILURE);
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}
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}
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memset(&laddr, 0, sizeof(struct sockaddr_in));
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laddr.sin_family = AF_INET;
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laddr.sin_len = sizeof(struct sockaddr_in);
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laddr.sin_addr.s_addr = INADDR_ANY;
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laddr.sin_port = htons(portno);
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ret = bind(s, (struct sockaddr *)&laddr, sizeof(laddr));
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if (ret == -1) {
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perror("bind");
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close(s);
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exit(EXIT_FAILURE);
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}
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mreq.imr_multiaddr = gaddr;
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mreq.imr_interface = iaddr;
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if (setsockopt(s, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
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sizeof(mreq)) < 0) {
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perror("setsockopt IP_ADD_MEMBERSHIP");
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close(s);
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exit(EXIT_FAILURE);
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}
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#ifdef IP_BLOCK_SOURCE
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mreqs.imr_multiaddr = gaddr;
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mreqs.imr_interface = iaddr;
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mreqs.imr_sourceaddr = baddr;
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if (setsockopt(s, IPPROTO_IP, IP_BLOCK_SOURCE, &mreqs,
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sizeof(mreqs)) < 0) {
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perror("setsockopt IP_BLOCK_SOURCE");
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close(s);
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exit(EXIT_FAILURE);
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}
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#endif
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signal(SIGINT, sighand);
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while (setjmp(jmpbuf) == 0) {
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fromlen = sizeof(from);
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rlen = recvfrom(s, buf, BUF_SIZE, 0, (struct sockaddr *)&from,
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&fromlen);
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if (from.sin_addr.s_addr == baddr.s_addr) {
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fprintf(stderr, "WARNING: got packet from blocked %s\n",
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inet_ntoa(from.sin_addr));
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} else {
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fprintf(stderr, "OK: got packet from %s\n",
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inet_ntoa(from.sin_addr));
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}
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}
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close(s);
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exit(EXIT_SUCCESS);
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}
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