NetBSD-5.0.2/usr.sbin/ifmcstat/ifmcstat.c
/* $NetBSD: ifmcstat.c,v 1.9 2004/11/16 05:59:32 itojun Exp $ */
/*
* 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
* 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 <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <kvm.h>
#include <nlist.h>
#include <string.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
# include <net/if_var.h>
#endif
#include <net/if_types.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#ifndef __NetBSD__
# ifdef __FreeBSD__
# define KERNEL
# endif
# include <netinet/if_ether.h>
# ifdef __FreeBSD__
# undef KERNEL
# endif
#else
# include <net/if_ether.h>
#endif
#include <netinet/in_var.h>
#include <arpa/inet.h>
#include <netdb.h>
kvm_t *kvmd;
struct nlist nl[] = {
#define N_IFNET 0
{ "_ifnet" },
#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3)
#define N_IN6_MK 1
{ "_in6_mk" },
#endif
{ "" },
};
const char *inet6_n2a __P((struct in6_addr *));
int main __P((void));
char *ifname __P((struct ifnet *));
void kread __P((u_long, void *, int));
#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3)
void acmc __P((struct ether_multi *));
#endif
void if6_addrlist __P((struct ifaddr *));
void in6_multilist __P((struct in6_multi *));
struct in6_multi * in6_multientry __P((struct in6_multi *));
#if !defined(__NetBSD__) && !(defined(__FreeBSD__) && __FreeBSD__ >= 3) && !defined(__OpenBSD__)
#ifdef __bsdi__
struct ether_addr {
u_int8_t ether_addr_octet[6];
};
#endif
static char *ether_ntoa __P((struct ether_addr *));
#endif
#define KREAD(addr, buf, type) \
kread((u_long)addr, (void *)buf, sizeof(type))
#ifdef N_IN6_MK
struct multi6_kludge {
LIST_ENTRY(multi6_kludge) mk_entry;
struct ifnet *mk_ifp;
struct in6_multihead mk_head;
};
#endif
const char *inet6_n2a(p)
struct in6_addr *p;
{
static char buf[NI_MAXHOST];
struct sockaddr_in6 sin6;
u_int32_t scopeid;
const int niflags = NI_NUMERICHOST;
memset(&sin6, 0, sizeof(sin6));
sin6.sin6_family = AF_INET6;
sin6.sin6_len = sizeof(struct sockaddr_in6);
sin6.sin6_addr = *p;
if (IN6_IS_ADDR_LINKLOCAL(p) || IN6_IS_ADDR_MC_LINKLOCAL(p)) {
scopeid = ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
if (scopeid) {
sin6.sin6_scope_id = scopeid;
sin6.sin6_addr.s6_addr[2] = 0;
sin6.sin6_addr.s6_addr[3] = 0;
}
}
if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
buf, sizeof(buf), NULL, 0, niflags) == 0)
return buf;
else
return "(invalid)";
}
int main()
{
char buf[_POSIX2_LINE_MAX], ifname[IFNAMSIZ];
struct ifnet *ifp, *nifp, ifnet;
#ifndef __NetBSD__
struct arpcom arpcom;
#else
struct ethercom ec;
struct sockaddr_dl sdl;
#endif
if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) {
perror("kvm_openfiles");
exit(1);
}
if (kvm_nlist(kvmd, nl) < 0) {
perror("kvm_nlist");
exit(1);
}
if (nl[N_IFNET].n_value == 0) {
printf("symbol %s not found\n", nl[N_IFNET].n_name);
exit(1);
}
KREAD(nl[N_IFNET].n_value, &ifp, struct ifnet *);
while (ifp) {
KREAD(ifp, &ifnet, struct ifnet);
printf("%s:\n", if_indextoname(ifnet.if_index, ifname));
#if defined(__NetBSD__) || defined(__OpenBSD__)
if6_addrlist(ifnet.if_addrlist.tqh_first);
nifp = ifnet.if_list.tqe_next;
#elif defined(__FreeBSD__) && __FreeBSD__ >= 3
if6_addrlist(TAILQ_FIRST(&ifnet.if_addrhead));
nifp = ifnet.if_link.tqe_next;
#else
if6_addrlist(ifnet.if_addrlist);
nifp = ifnet.if_next;
#endif
#ifdef __NetBSD__
KREAD(ifnet.if_sadl, &sdl, struct sockaddr_dl);
if (sdl.sdl_type == IFT_ETHER) {
printf("\tenaddr %s",
ether_ntoa((struct ether_addr *)LLADDR(&sdl)));
KREAD(ifp, &ec, struct ethercom);
printf(" multicnt %d", ec.ec_multicnt);
acmc(ec.ec_multiaddrs.lh_first);
printf("\n");
}
#elif defined(__FreeBSD__) && __FreeBSD__ >= 3
/* not supported */
#else
if (ifnet.if_type == IFT_ETHER) {
KREAD(ifp, &arpcom, struct arpcom);
printf("\tenaddr %s",
ether_ntoa((struct ether_addr *)arpcom.ac_enaddr));
KREAD(ifp, &arpcom, struct arpcom);
printf(" multicnt %d", arpcom.ac_multicnt);
#ifdef __OpenBSD__
acmc(arpcom.ac_multiaddrs.lh_first);
#else
acmc(arpcom.ac_multiaddrs);
#endif
printf("\n");
}
#endif
ifp = nifp;
}
exit(0);
/*NOTREACHED*/
}
char *ifname(ifp)
struct ifnet *ifp;
{
static char buf[BUFSIZ];
#if defined(__NetBSD__) || defined(__OpenBSD__)
struct ifnet ifnet;
#endif
#if defined(__NetBSD__) || defined(__OpenBSD__)
KREAD(ifp, &ifnet, struct ifnet);
strncpy(buf, ifnet.if_xname, BUFSIZ);
#else
KREAD(ifp->if_name, buf, IFNAMSIZ);
#endif
return buf;
}
void kread(addr, buf, len)
u_long addr;
void *buf;
int len;
{
if (kvm_read(kvmd, addr, buf, len) != len) {
perror("kvm_read");
exit(1);
}
}
#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3)
void acmc(am)
struct ether_multi *am;
{
struct ether_multi em;
while (am) {
KREAD(am, &em, struct ether_multi);
printf("\n\t\t");
printf("%s -- ", ether_ntoa((struct ether_addr *)em.enm_addrlo));
printf("%s ", ether_ntoa((struct ether_addr *)&em.enm_addrhi));
printf("%d", em.enm_refcount);
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
am = em.enm_next;
#else
am = em.enm_list.le_next;
#endif
}
}
#endif
void
if6_addrlist(ifap)
struct ifaddr *ifap;
{
struct ifaddr ifa;
struct sockaddr sa;
struct in6_ifaddr if6a;
struct in6_multi *mc = 0;
struct ifaddr *ifap0;
ifap0 = ifap;
while (ifap) {
KREAD(ifap, &ifa, struct ifaddr);
if (ifa.ifa_addr == NULL)
goto nextifap;
KREAD(ifa.ifa_addr, &sa, struct sockaddr);
if (sa.sa_family != PF_INET6)
goto nextifap;
KREAD(ifap, &if6a, struct in6_ifaddr);
printf("\tinet6 %s\n", inet6_n2a(&if6a.ia_addr.sin6_addr));
#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3)
mc = mc ? mc : if6a.ia6_multiaddrs.lh_first;
#endif
nextifap:
#if defined(__NetBSD__) || defined(__OpenBSD__)
ifap = ifa.ifa_list.tqe_next;
#elif defined(__FreeBSD__) && __FreeBSD__ >= 3
ifap = ifa.ifa_link.tqe_next;
#else
ifap = ifa.ifa_next;
#endif /* __FreeBSD__ >= 3 */
}
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
if (ifap0) {
struct ifnet ifnet;
struct ifmultiaddr ifm, *ifmp = 0;
struct sockaddr_in6 sin6;
struct in6_multi in6m;
struct sockaddr_dl sdl;
int in6_multilist_done = 0;
KREAD(ifap0, &ifa, struct ifaddr);
KREAD(ifa.ifa_ifp, &ifnet, struct ifnet);
if (ifnet.if_multiaddrs.lh_first)
ifmp = ifnet.if_multiaddrs.lh_first;
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_INET6)
goto nextmulti;
(void)in6_multientry((struct in6_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 = ifm.ifma_link.le_next;
}
}
#else
if (mc)
in6_multilist(mc);
#endif
#ifdef N_IN6_MK
if (nl[N_IN6_MK].n_value != 0) {
LIST_HEAD(in6_mktype, multi6_kludge) in6_mk;
struct multi6_kludge *mkp, mk;
char *nam;
KREAD(nl[N_IN6_MK].n_value, &in6_mk, struct in6_mktype);
KREAD(ifap0, &ifa, struct ifaddr);
nam = strdup(ifname(ifa.ifa_ifp));
for (mkp = in6_mk.lh_first; mkp; mkp = mk.mk_entry.le_next) {
KREAD(mkp, &mk, struct multi6_kludge);
if (strcmp(nam, ifname(mk.mk_ifp)) == 0 &&
mk.mk_head.lh_first) {
printf("\t(on kludge entry for %s)\n", nam);
in6_multilist(mk.mk_head.lh_first);
}
}
free(nam);
}
#endif
}
struct in6_multi *
in6_multientry(mc)
struct in6_multi *mc;
{
struct in6_multi multi;
KREAD(mc, &multi, struct in6_multi);
printf("\t\tgroup %s", inet6_n2a(&multi.in6m_addr));
printf(" refcnt %u\n", multi.in6m_refcount);
return(multi.in6m_entry.le_next);
}
void
in6_multilist(mc)
struct in6_multi *mc;
{
while (mc)
mc = in6_multientry(mc);
}
#if !defined(__NetBSD__) && !(defined(__FreeBSD__) && __FreeBSD__ >= 3) && !defined(__OpenBSD__)
static char *
ether_ntoa(e)
struct ether_addr *e;
{
static char buf[20];
u_char *p;
p = (u_char *)e;
snprintf(buf, sizeof(buf), "%02x:%02x:%02x:%02x:%02x:%02x",
p[0], p[1], p[2], p[3], p[4], p[5]);
return buf;
}
#endif