MFC:
Merge latest ifmcstat from HEAD. Obtained from: KAME (with many FreeBSD changes)
This commit is contained in:
bms
parent
144ec955e7
commit
ecb163fc29
usr.sbin/ifmcstat
@ -6,6 +6,7 @@ MAN= ifmcstat.8
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BINMODE= 550
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WARNS?= 2
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CFLAGS+=-DINET6
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DPADD= ${LIBKVM}
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LDADD= -lkvm
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@ -1,4 +1,4 @@
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.\" $KAME: ifmcstat.8,v 1.3 2000/10/15 11:43:57 itojun Exp $
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.\" $KAME: ifmcstat.8,v 1.6 2002/10/31 04:23:43 suz Exp $
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.\"
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.\" Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
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.\" All rights reserved.
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@ -29,7 +29,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 21, 1998
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.Dd March 20, 2007
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.Dt IFMCSTAT 8
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.Os
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.Sh NAME
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@ -37,22 +37,41 @@
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.Nd dump multicast group management statistics per interface
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.Sh SYNOPSIS
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.Nm
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.Op Fl i Ar interface
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.Op Fl f Ar address-family
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Nm
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.Op Ar kernel
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.\"
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.Sh DESCRIPTION
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The
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.Nm
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utility dumps multicast group information from the kernel.
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It is similar but not identical to the output from
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.Nm netstat Fl ina .
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command dumps multicast group information from the kernel.
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.Pp
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There are no command line options.
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The following options are supported:
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.Bl -tag -width Fl
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.It Fl i Ar interface
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specifies the interface to be displayed.
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.Pp
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Only root can use
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.Nm .
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.Sh SEE ALSO
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.Xr netstat 1
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.Rs
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.%A G. Malkin
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.%A R. Minnear
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.%R IPng for IPv6
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.%N RFC2080
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.Re
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.It Fl f Ar address-family
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specifies the address-family to be displayed; currently only
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.Ar inet
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and
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.Ar inet6
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are supported.
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.It Fl M Ar core
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extracts values associated with the name list from the specified core,
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instead of the default
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.Pa /dev/kmem .
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.It Fl N Ar system
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extracts the name list from the specified kernel instead of the
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default, which is the kernel image the system has booted from.
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.It Nm Ar system
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This is the same as specifying
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.Nm
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.Fl N Ar system .
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This usage is deprecated; it is supported only for backwards compatibility.
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.Sh BUGS
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.Nm
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needs superuser privilege.
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@ -1,3 +1,5 @@
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/* $KAME: ifmcstat.c,v 1.48 2006/11/15 05:13:59 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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@ -25,10 +27,50 @@
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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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* $FreeBSD$
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*/
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/* TODO: use sysctl. */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/queue.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_types.h>
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#include <net/if_dl.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/igmp.h>
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#ifdef HAVE_IGMPV3
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# include <netinet/in_msf.h>
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#endif
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#define KERNEL
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# include <netinet/if_ether.h>
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#undef KERNEL
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#define _KERNEL
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# include <sys/sysctl.h>
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# include <netinet/igmp_var.h>
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#undef _KERNEL
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#ifdef INET6
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# ifdef HAVE_MLDV2
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# include <netinet6/in6_msf.h>
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# endif
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#include <netinet/icmp6.h>
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#define _KERNEL
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# include <netinet6/mld6_var.h>
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#undef _KERNEL
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#endif /* INET6 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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@ -36,26 +78,13 @@
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#include <nlist.h>
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#include <string.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/queue.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_types.h>
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#include <net/if_dl.h>
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#include <netinet/in.h>
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#define _KERNEL
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#include <netinet/if_ether.h>
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#undef _KERNEL
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#include <netinet/in_var.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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kvm_t *kvmd;
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int ifindex = 0;
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int af = AF_UNSPEC;
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struct nlist nl[] = {
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#define N_IFNET 0
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@ -64,24 +93,27 @@ struct nlist nl[] = {
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};
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const char *inet6_n2a __P((struct in6_addr *));
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int main __P((void));
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int main __P((int, char **));
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char *ifname __P((struct ifnet *));
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void kread __P((u_long, void *, int));
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#ifdef INET6
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void if6_addrlist __P((struct ifaddr *));
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void in6_multilist __P((struct in6_multi *));
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struct in6_multi * in6_multientry __P((struct in6_multi *));
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#endif
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void if_addrlist(struct ifaddr *);
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void in_multilist(struct in_multi *);
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struct in_multi * in_multientry(struct in_multi *);
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#ifdef HAVE_IGMPV3
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void in_addr_slistentry(struct in_addr_slist *ias, char *heading);
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#endif
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#ifdef HAVE_MLDV2
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void in6_addr_slistentry(struct in6_addr_slist *ias, char *heading);
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#endif
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#define KREAD(addr, buf, type) \
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kread((u_long)addr, (void *)buf, sizeof(type))
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#ifdef N_IN6_MK
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struct multi6_kludge {
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LIST_ENTRY(multi6_kludge) mk_entry;
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struct ifnet *mk_ifp;
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struct in6_multihead mk_head;
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};
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#endif
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const char *inet6_n2a(p)
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struct in6_addr *p;
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{
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@ -94,7 +126,8 @@ const char *inet6_n2a(p)
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sin6.sin6_family = AF_INET6;
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sin6.sin6_len = sizeof(struct sockaddr_in6);
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sin6.sin6_addr = *p;
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if (IN6_IS_ADDR_LINKLOCAL(p) || IN6_IS_ADDR_MC_LINKLOCAL(p)) {
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if (IN6_IS_ADDR_LINKLOCAL(p) || IN6_IS_ADDR_MC_LINKLOCAL(p) ||
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IN6_IS_ADDR_MC_NODELOCAL(p)) {
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scopeid = ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
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if (scopeid) {
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sin6.sin6_scope_id = scopeid;
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@ -109,12 +142,56 @@ const char *inet6_n2a(p)
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return "(invalid)";
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}
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int main()
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int main(argc, argv)
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int argc;
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char **argv;
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{
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char buf[_POSIX2_LINE_MAX], ifname[IFNAMSIZ];
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int c;
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struct ifnet *ifp, *nifp, ifnet;
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const char *kernel = NULL;
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const char *core = NULL;
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if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) {
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/* "ifmcstat [kernel]" format is supported for backward compatiblity */
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if (argc == 2)
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kernel = argv[1];
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while ((c = getopt(argc, argv, "i:f:M:N:")) != -1) {
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switch (c) {
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case 'i':
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if ((ifindex = if_nametoindex(optarg)) == 0) {
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fprintf(stderr, "%s: unknown interface\n", optarg);
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exit(1);
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}
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break;
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case 'f':
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if (strcmp(optarg, "inet") == 0) {
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af = AF_INET;
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break;
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}
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if (strcmp(optarg, "inet6") == 0) {
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af = AF_INET6;
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break;
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}
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fprintf(stderr, "%s: unknown address family\n", optarg);
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exit(1);
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/*NOTREACHED*/
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case 'M':
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core = strdup(optarg);
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break;
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case 'N':
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kernel = strdup(optarg);
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break;
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default:
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fprintf(stderr,
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"usage: ifmcstat [-i interface] [-f address family] [-M core] [-N system]\n");
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exit(1);
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/*NOTREACHED*/
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}
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}
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if ((kvmd = kvm_openfiles(kernel, core, NULL, O_RDONLY, buf)) ==
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NULL) {
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perror("kvm_openfiles");
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exit(1);
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}
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@ -129,13 +206,16 @@ int main()
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KREAD(nl[N_IFNET].n_value, &ifp, struct ifnet *);
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while (ifp) {
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KREAD(ifp, &ifnet, struct ifnet);
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nifp = ifnet.if_link.tqe_next;
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if (ifindex && ifindex != ifnet.if_index)
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goto next;
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printf("%s:\n", if_indextoname(ifnet.if_index, ifname));
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if_addrlist(TAILQ_FIRST(&ifnet.if_addrhead));
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#ifdef INET6
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if6_addrlist(TAILQ_FIRST(&ifnet.if_addrhead));
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nifp = TAILQ_NEXT(&ifnet, if_link);
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/* not supported */
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#endif
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next:
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ifp = nifp;
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}
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@ -165,6 +245,8 @@ void kread(addr, buf, len)
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}
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}
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#ifdef INET6
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void
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if6_addrlist(ifap)
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struct ifaddr *ifap;
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@ -174,6 +256,8 @@ if6_addrlist(ifap)
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struct in6_ifaddr if6a;
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struct ifaddr *ifap0;
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if (af && af != AF_INET6)
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return;
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ifap0 = ifap;
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while (ifap) {
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KREAD(ifap, &ifa, struct ifaddr);
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@ -185,7 +269,7 @@ if6_addrlist(ifap)
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KREAD(ifap, &if6a, struct in6_ifaddr);
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printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr));
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nextifap:
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ifap = TAILQ_NEXT(&ifa, ifa_link);
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ifap = ifa.ifa_link.tqe_next;
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}
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if (ifap0) {
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struct ifnet ifnet;
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@ -215,33 +299,6 @@ if6_addrlist(ifap)
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ifmp = TAILQ_NEXT(&ifm, ifma_link);
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}
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}
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#ifdef N_IN6_MK
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if (nl[N_IN6_MK].n_value != 0) {
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LIST_HEAD(in6_mktype, multi6_kludge) in6_mk;
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struct multi6_kludge *mkp, mk;
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char *nam;
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KREAD(nl[N_IN6_MK].n_value, &in6_mk, struct in6_mktype);
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KREAD(ifap0, &ifa, struct ifaddr);
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nam = strdup(ifname(ifa.ifa_ifp));
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if (!nam) {
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fprintf(stderr, "ifmcstat: not enough core\n");
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exit(1);
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}
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LIST_FOREACH(mkp, &in6_mk, mk_entry) {
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KREAD(mkp, &mk, struct multi6_kludge);
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if (strcmp(nam, ifname(mk.mk_ifp)) == 0 &&
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LIST_FIRST(&mk.mk_head)) {
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printf("\t(on kludge entry for %s)\n", nam);
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in6_multilist(LIST_FIRST(&mk.mk_head));
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}
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}
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free(nam);
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}
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#endif
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}
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struct in6_multi *
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@ -249,13 +306,88 @@ in6_multientry(mc)
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struct in6_multi *mc;
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{
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struct in6_multi multi;
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#ifdef HAVE_MLDV2
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struct in6_multi_source src;
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struct router6_info rt6i;
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#endif
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KREAD(mc, &multi, struct in6_multi);
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printf("\t\tgroup %s", inet6_n2a(&multi.in6m_addr));
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printf(" refcnt %u\n", multi.in6m_refcount);
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return(LIST_NEXT(&multi, in6m_entry));
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#ifdef HAVE_MLDV2
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if (multi.in6m_rti != NULL) {
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KREAD(multi.in6m_rti, &rt6i, struct router_info);
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printf("\t\t\t");
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switch (rt6i.rt6i_type) {
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case MLD_V1_ROUTER:
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printf("mldv1");
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break;
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case MLD_V2_ROUTER:
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printf("mldv2");
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break;
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default:
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printf("mldv?(%d)", rt6i.rt6i_type);
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break;
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}
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if (multi.in6m_source == NULL) {
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printf("\n");
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return(multi.in6m_entry.le_next);
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}
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KREAD(multi.in6m_source, &src, struct in6_multi_source);
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printf(" mode=%s grpjoin=%d\n",
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src.i6ms_mode == MCAST_INCLUDE ? "include" :
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src.i6ms_mode == MCAST_EXCLUDE ? "exclude" :
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"???",
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src.i6ms_grpjoin);
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in6_addr_slistentry(src.i6ms_cur, "current");
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in6_addr_slistentry(src.i6ms_rec, "recorded");
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in6_addr_slistentry(src.i6ms_in, "included");
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in6_addr_slistentry(src.i6ms_ex, "excluded");
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in6_addr_slistentry(src.i6ms_alw, "allowed");
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in6_addr_slistentry(src.i6ms_blk, "blocked");
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in6_addr_slistentry(src.i6ms_toin, "to-include");
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in6_addr_slistentry(src.i6ms_ex, "to-exclude");
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}
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#endif
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return(multi.in6m_entry.le_next);
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}
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#ifdef HAVE_MLDV2
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void
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in6_addr_slistentry(struct in6_addr_slist *ias, char *heading)
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{
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struct in6_addr_slist slist;
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struct i6as_head head;
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struct in6_addr_source src;
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if (ias == NULL) {
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printf("\t\t\t\t%s (none)\n", heading);
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return;
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}
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memset(&slist, 0, sizeof(slist));
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KREAD(ias, &slist, struct in6_addr_source);
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printf("\t\t\t\t%s (entry num=%d)\n", heading, slist.numsrc);
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if (slist.numsrc == 0) {
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return;
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}
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KREAD(slist.head, &head, struct i6as_head);
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KREAD(head.lh_first, &src, struct in6_addr_source);
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while (1) {
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printf("\t\t\t\t\tsource %s (ref=%d)\n",
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inet6_n2a(&src.i6as_addr.sin6_addr),
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src.i6as_refcount);
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if (src.i6as_list.le_next == NULL)
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break;
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KREAD(src.i6as_list.le_next, &src, struct in6_addr_source);
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}
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return;
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}
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#endif
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void
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in6_multilist(mc)
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struct in6_multi *mc;
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@ -263,3 +395,160 @@ in6_multilist(mc)
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while (mc)
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mc = in6_multientry(mc);
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}
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#endif /* INET6 */
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void
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if_addrlist(ifap)
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struct ifaddr *ifap;
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{
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struct ifaddr ifa;
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struct sockaddr sa;
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struct in_ifaddr ia;
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struct ifaddr *ifap0;
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if (af && af != AF_INET)
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return;
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ifap0 = ifap;
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while (ifap) {
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KREAD(ifap, &ifa, struct ifaddr);
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if (ifa.ifa_addr == NULL)
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goto nextifap;
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KREAD(ifa.ifa_addr, &sa, struct sockaddr);
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||||
if (sa.sa_family != PF_INET)
|
||||
goto nextifap;
|
||||
KREAD(ifap, &ia, struct in_ifaddr);
|
||||
printf("\tinet %s\n", inet_ntoa(ia.ia_addr.sin_addr));
|
||||
nextifap:
|
||||
ifap = ifa.ifa_link.tqe_next;
|
||||
}
|
||||
if (ifap0) {
|
||||
struct ifnet ifnet;
|
||||
struct ifmultiaddr ifm, *ifmp = 0;
|
||||
struct sockaddr_dl sdl;
|
||||
|
||||
KREAD(ifap0, &ifa, struct ifaddr);
|
||||
KREAD(ifa.ifa_ifp, &ifnet, struct ifnet);
|
||||
if (TAILQ_FIRST(&ifnet.if_multiaddrs))
|
||||
ifmp = TAILQ_FIRST(&ifnet.if_multiaddrs);
|
||||
while (ifmp) {
|
||||
KREAD(ifmp, &ifm, struct ifmultiaddr);
|
||||
if (ifm.ifma_addr == NULL)
|
||||
goto nextmulti;
|
||||
KREAD(ifm.ifma_addr, &sa, struct sockaddr);
|
||||
if (sa.sa_family != AF_INET)
|
||||
goto nextmulti;
|
||||
(void)in_multientry((struct in_multi *)
|
||||
ifm.ifma_protospec);
|
||||
if (ifm.ifma_lladdr == 0)
|
||||
goto nextmulti;
|
||||
KREAD(ifm.ifma_lladdr, &sdl, struct sockaddr_dl);
|
||||
printf("\t\t\tmcast-macaddr %s multicnt %d\n",
|
||||
ether_ntoa((struct ether_addr *)LLADDR(&sdl)),
|
||||
ifm.ifma_refcount);
|
||||
nextmulti:
|
||||
ifmp = TAILQ_NEXT(&ifm, ifma_link);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
in_multilist(mc)
|
||||
struct in_multi *mc;
|
||||
{
|
||||
while (mc)
|
||||
mc = in_multientry(mc);
|
||||
}
|
||||
|
||||
struct in_multi *
|
||||
in_multientry(mc)
|
||||
struct in_multi *mc;
|
||||
{
|
||||
struct in_multi multi;
|
||||
struct router_info rti;
|
||||
#ifdef HAVE_IGMPV3
|
||||
struct in_multi_source src;
|
||||
#endif
|
||||
|
||||
KREAD(mc, &multi, struct in_multi);
|
||||
printf("\t\tgroup %s\n", inet_ntoa(multi.inm_addr));
|
||||
|
||||
if (multi.inm_rti != NULL) {
|
||||
KREAD(multi.inm_rti, &rti, struct router_info);
|
||||
printf("\t\t\t");
|
||||
switch (rti.rti_type) {
|
||||
case IGMP_V1_ROUTER:
|
||||
printf("igmpv1");
|
||||
break;
|
||||
case IGMP_V2_ROUTER:
|
||||
printf("igmpv2");
|
||||
break;
|
||||
#ifdef HAVE_IGMPV3
|
||||
case IGMP_V3_ROUTER:
|
||||
printf("igmpv3");
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
printf("igmpv?(%d)", rti.rti_type);
|
||||
break;
|
||||
}
|
||||
|
||||
#ifdef HAVE_IGMPV3
|
||||
if (multi.inm_source == NULL) {
|
||||
printf("\n");
|
||||
return (multi.inm_list.le_next);
|
||||
}
|
||||
|
||||
KREAD(multi.inm_source, &src, struct in_multi_source);
|
||||
printf(" mode=%s grpjoin=%d\n",
|
||||
src.ims_mode == MCAST_INCLUDE ? "include" :
|
||||
src.ims_mode == MCAST_EXCLUDE ? "exclude" :
|
||||
"???",
|
||||
src.ims_grpjoin);
|
||||
in_addr_slistentry(src.ims_cur, "current");
|
||||
in_addr_slistentry(src.ims_rec, "recorded");
|
||||
in_addr_slistentry(src.ims_in, "included");
|
||||
in_addr_slistentry(src.ims_ex, "excluded");
|
||||
in_addr_slistentry(src.ims_alw, "allowed");
|
||||
in_addr_slistentry(src.ims_blk, "blocked");
|
||||
in_addr_slistentry(src.ims_toin, "to-include");
|
||||
in_addr_slistentry(src.ims_ex, "to-exclude");
|
||||
#else
|
||||
printf("\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
#ifdef HAVE_IGMPV3
|
||||
void
|
||||
in_addr_slistentry(struct in_addr_slist *ias, char *heading)
|
||||
{
|
||||
struct in_addr_slist slist;
|
||||
struct ias_head head;
|
||||
struct in_addr_source src;
|
||||
|
||||
if (ias == NULL) {
|
||||
printf("\t\t\t\t%s (none)\n", heading);
|
||||
return;
|
||||
}
|
||||
memset(&slist, 0, sizeof(slist));
|
||||
KREAD(ias, &slist, struct in_addr_source);
|
||||
printf("\t\t\t\t%s (entry num=%d)\n", heading, slist.numsrc);
|
||||
if (slist.numsrc == 0) {
|
||||
return;
|
||||
}
|
||||
KREAD(slist.head, &head, struct ias_head);
|
||||
|
||||
KREAD(head.lh_first, &src, struct in_addr_source);
|
||||
while (1) {
|
||||
printf("\t\t\t\t\tsource %s (ref=%d)\n",
|
||||
inet_ntoa(src.ias_addr.sin_addr), src.ias_refcount);
|
||||
if (src.ias_list.le_next == NULL)
|
||||
break;
|
||||
KREAD(src.ias_list.le_next, &src, struct in_addr_source);
|
||||
}
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user