Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/trunk]: src/usr.sbin mld6query: throw IPv6 MLD query (similar to IPv4 IGMP)
details: https://anonhg.NetBSD.org/src/rev/3d22f39b0b8c
branches: trunk
changeset: 474434:3d22f39b0b8c
user: itojun <itojun%NetBSD.org@localhost>
date: Tue Jul 06 13:32:01 1999 +0000
description:
mld6query: throw IPv6 MLD query (similar to IPv4 IGMP)
diffstat:
usr.sbin/Makefile | 5 +-
usr.sbin/mld6query/Makefile | 12 +
usr.sbin/mld6query/mld6.c | 248 +++++++++++++++++++++++++++++++++++++++++
usr.sbin/mld6query/mld6query.8 | 77 ++++++++++++
4 files changed, 340 insertions(+), 2 deletions(-)
diffs (truncated from 368 to 300 lines):
diff -r 4249bf69d334 -r 3d22f39b0b8c usr.sbin/Makefile
--- a/usr.sbin/Makefile Tue Jul 06 13:14:54 1999 +0000
+++ b/usr.sbin/Makefile Tue Jul 06 13:32:01 1999 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.116 1999/07/02 17:41:23 itojun Exp $
+# $NetBSD: Makefile,v 1.117 1999/07/06 13:32:01 itojun Exp $
# from: @(#)Makefile 5.20 (Berkeley) 6/12/93
# XXX Temporary for NO_SENDMAIL and BUILD_POSTFIX
@@ -22,7 +22,8 @@
zdump zic
# IPv6
-SUBDIR+=gifconfig ifmcstat ndp rip6query route6d rtadvd setkey traceroute6
+SUBDIR+=gifconfig ifmcstat mld6query ndp rip6query route6d rtadvd setkey \
+ traceroute6
.if !defined(NO_SENDMAIL)
SUBDIR+= sendmail
diff -r 4249bf69d334 -r 3d22f39b0b8c usr.sbin/mld6query/Makefile
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/mld6query/Makefile Tue Jul 06 13:32:01 1999 +0000
@@ -0,0 +1,12 @@
+# $NetBSD: Makefile,v 1.1 1999/07/06 13:32:01 itojun Exp $
+
+PROG= mld6query
+SRCS= mld6.c
+MAN= mld6query.8
+
+BINOWN = root
+BINGRP = bin
+
+CPPFLAGS+= -DINET6 -DIPSEC
+
+.include <bsd.prog.mk>
diff -r 4249bf69d334 -r 3d22f39b0b8c usr.sbin/mld6query/mld6.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/mld6query/mld6.c Tue Jul 06 13:32:01 1999 +0000
@@ -0,0 +1,248 @@
+/* $NetBSD: mld6.c,v 1.1 1999/07/06 13:32:01 itojun Exp $ */
+
+/*
+ * Copyright (C) 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <sys/param.h>
+#include <sys/uio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include <net/if.h>
+#if defined(__FreeBSD__) && __FreeBSD__ >= 3
+#include <net/if_var.h>
+#endif /* __FreeBSD__ >= 3 */
+
+#include <netinet/in.h>
+#include <netinet/ip6.h>
+#include <netinet/icmp6.h>
+
+#include <arpa/inet.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <err.h>
+
+struct msghdr m;
+struct sockaddr_in6 dst;
+struct mld6_hdr mldh;
+struct in6_addr maddr = IN6ADDR_ANY_INIT, any = IN6ADDR_ANY_INIT;
+struct ipv6_mreq mreq;
+u_short ifindex;
+int s;
+
+#define QUERY_RESPONSE_INTERVAL 10000
+
+void make_msg(int index, struct in6_addr *addr);
+void usage(void);
+void dump(int);
+void quit(int);
+
+int
+main(int argc, char *argv[])
+{
+ int i;
+ struct icmp6_filter filt;
+ u_int hlim = 1;
+ fd_set fdset;
+ struct itimerval itimer;
+
+ if (argc != 2 && argc != 3)
+ usage();
+
+ ifindex = (u_short)if_nametoindex(argv[1]);
+ if (ifindex == 0)
+ usage();
+ if (argc == 3 && inet_pton(AF_INET6, argv[2], &maddr) != 1)
+ usage();
+
+ if ((s = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6)) < 0)
+ err(1, "socket");
+
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hlim,
+ sizeof(hlim)) == -1)
+ err(1, "setsockopt(IPV6_MULTICAST_HOPS)");
+
+ mreq.ipv6mr_multiaddr = any;
+ mreq.ipv6mr_interface = ifindex;
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq,
+ sizeof(mreq)) == -1)
+ err(1, "setsockopt(IPV6_JOIN_GROUP)");
+
+ ICMP6_FILTER_SETBLOCKALL(&filt);
+ ICMP6_FILTER_SETPASS(ICMP6_MEMBERSHIP_QUERY, &filt);
+ ICMP6_FILTER_SETPASS(ICMP6_MEMBERSHIP_REPORT, &filt);
+ ICMP6_FILTER_SETPASS(ICMP6_MEMBERSHIP_REDUCTION, &filt);
+ if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
+ sizeof(filt)) < 0)
+ err(1, "setsockopt(ICMP6_FILTER)");
+
+ make_msg(ifindex, &maddr);
+
+ if (sendmsg(s, &m, 0) < 0)
+ err(1, "sendmsg");
+
+ itimer.it_value.tv_sec = QUERY_RESPONSE_INTERVAL / 1000;
+ itimer.it_interval.tv_sec = 0;
+ itimer.it_interval.tv_usec = 0;
+ itimer.it_value.tv_usec = 0;
+
+ (void)signal(SIGALRM, quit);
+ (void)setitimer(ITIMER_REAL, &itimer, NULL);
+
+ FD_ZERO(&fdset);
+ for (;;) {
+ FD_SET(s, &fdset);
+ if ((i = select(s + 1, &fdset, NULL, NULL, NULL)) < 0)
+ perror("select");
+ if (i == 0)
+ continue;
+ else
+ dump(s);
+ }
+}
+
+void
+make_msg(int index, struct in6_addr *addr)
+{
+ static struct iovec iov[2];
+ static u_char *cmsgbuf;
+ int cmsglen;
+ u_int8_t raopt[IP6OPT_RTALERT_LEN];
+ struct in6_pktinfo *pi;
+ struct cmsghdr *cmsgp;
+ u_short rtalert_code = htons(IP6OPT_RTALERT_MLD);
+
+ dst.sin6_len = sizeof(dst);
+ dst.sin6_family = AF_INET6;
+ if (IN6_IS_ADDR_UNSPECIFIED(addr)) {
+ if (inet_pton(AF_INET6, "ff02::1", &dst.sin6_addr) != 1)
+ errx(1, "inet_pton failed");
+ }
+ else
+ dst.sin6_addr = *addr;
+ m.msg_name = (caddr_t)&dst;
+ m.msg_namelen = dst.sin6_len;
+ iov[0].iov_base = (caddr_t)&mldh;
+ iov[0].iov_len = sizeof(mldh);
+ m.msg_iov = iov;
+ m.msg_iovlen = 1;
+
+ bzero(&mldh, sizeof(mldh));
+ mldh.mld6_type = MLD6_LISTENER_QUERY;
+ mldh.mld6_maxdelay = htons(QUERY_RESPONSE_INTERVAL);
+ mldh.mld6_addr = *addr;
+
+ cmsglen = CMSG_SPACE(sizeof(struct in6_pktinfo)) +
+ inet6_option_space(sizeof(raopt));
+ if ((cmsgbuf = malloc(cmsglen)) == NULL)
+ errx(1, "can't allocate enough memory for cmsg");
+ cmsgp = (struct cmsghdr *)cmsgbuf;
+ m.msg_control = (caddr_t)cmsgbuf;
+ m.msg_controllen = cmsglen;
+ /* specify the outgoing interface */
+ cmsgp->cmsg_len = CMSG_SPACE(sizeof(struct in6_pktinfo));
+ cmsgp->cmsg_level = IPPROTO_IPV6;
+ cmsgp->cmsg_type = IPV6_PKTINFO;
+ pi = (struct in6_pktinfo *)CMSG_DATA(cmsgp);
+ pi->ipi6_ifindex = ifindex;
+ memset(&pi->ipi6_addr, 0, sizeof(pi->ipi6_addr));
+ /* specifiy to insert router alert option in a hop-by-hop opt hdr. */
+ cmsgp = CMSG_NXTHDR(&m, cmsgp);
+ if (inet6_option_init((void *)cmsgp, &cmsgp, IPV6_HOPOPTS))
+ errx(1, "inet6_option_init failed\n");
+ raopt[0] = IP6OPT_RTALERT;
+ raopt[1] = IP6OPT_RTALERT_LEN - 2;
+ memcpy(&raopt[2], (caddr_t)&rtalert_code, sizeof(u_short));
+ if (inet6_option_append(cmsgp, raopt, 4, 0))
+ errx(1, "inet6_option_append failed\n");
+}
+
+void
+dump(int s)
+{
+ int i;
+ struct mld6_hdr *mld;
+ u_char buf[1024];
+ struct sockaddr_in6 from;
+ int from_len = sizeof(from);
+ char ntop_buf[256];
+
+ if ((i = recvfrom(s, buf, sizeof(buf), 0,
+ (struct sockaddr *)&from,
+ &from_len)) < 0)
+ return;
+
+ if (i < sizeof(struct mld6_hdr)) {
+ printf("too short!\n");
+ return;
+ }
+
+ mld = (struct mld6_hdr *)buf;
+
+ printf("from %s, ", inet_ntop(AF_INET6, &from.sin6_addr,
+ ntop_buf, sizeof(ntop_buf)));
+
+ switch (mld->mld6_type) {
+ case ICMP6_MEMBERSHIP_QUERY:
+ printf("type=Multicast Listener Query, ");
+ break;
+ case ICMP6_MEMBERSHIP_REPORT:
+ printf("type=Multicast Listener Report, ");
+ break;
+ case ICMP6_MEMBERSHIP_REDUCTION:
+ printf("type=Multicast Listener Done, ");
+ break;
+ }
+ printf("addr=%s\n", inet_ntop(AF_INET6, &mld->mld6_addr,
+ ntop_buf, sizeof(ntop_buf)));
+
+ fflush(stdout);
+}
+
+void
+quit(int signum) {
+ mreq.ipv6mr_multiaddr = any;
+ mreq.ipv6mr_interface = ifindex;
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_LEAVE_GROUP, &mreq,
+ sizeof(mreq)) == -1)
+ err(1, "setsockopt(IPV6_LEAVE_GROUP)");
+
+ exit(0);
+}
+
+void
+usage()
+{
+ (void)fprintf(stderr, "usage: mld6query ifname [addr]\n");
+ exit(1);
+}
diff -r 4249bf69d334 -r 3d22f39b0b8c usr.sbin/mld6query/mld6query.8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/mld6query/mld6query.8 Tue Jul 06 13:32:01 1999 +0000
@@ -0,0 +1,77 @@
+.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
Home |
Main Index |
Thread Index |
Old Index