mirror of
https://github.com/freebsd/freebsd-src.git
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271 lines
6.8 KiB
C
271 lines
6.8 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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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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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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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* $FreeBSD$
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*/
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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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#include <kvm.h>
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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 <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 <arpa/inet.h>
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#include <netdb.h>
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kvm_t *kvmd;
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struct nlist nl[] = {
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#define N_IFNET 0
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{ "_ifnet" },
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{ "" },
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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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char *ifname __P((struct ifnet *));
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void kread __P((u_long, void *, int));
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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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#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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static char buf[NI_MAXHOST];
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struct sockaddr_in6 sin6;
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u_int32_t scopeid;
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#ifdef NI_WITHSCOPEID
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const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
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#else
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const int niflags = NI_NUMERICHOST;
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#endif
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memset(&sin6, 0, sizeof(sin6));
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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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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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sin6.sin6_addr.s6_addr[2] = 0;
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sin6.sin6_addr.s6_addr[3] = 0;
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}
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}
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if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
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buf, sizeof(buf), NULL, 0, niflags) == 0)
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return buf;
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else
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return "(invalid)";
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}
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int main()
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{
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char buf[_POSIX2_LINE_MAX], ifname[IFNAMSIZ];
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struct ifnet *ifp, *nifp, ifnet;
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struct arpcom arpcom;
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if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) {
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perror("kvm_openfiles");
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exit(1);
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}
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if (kvm_nlist(kvmd, nl) < 0) {
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perror("kvm_nlist");
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exit(1);
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}
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if (nl[N_IFNET].n_value == 0) {
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printf("symbol %s not found\n", nl[N_IFNET].n_name);
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exit(1);
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}
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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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printf("%s:\n", if_indextoname(ifnet.if_index, ifname));
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if6_addrlist(TAILQ_FIRST(&ifnet.if_addrhead));
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nifp = ifnet.if_link.tqe_next;
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/* not supported */
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ifp = nifp;
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}
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exit(0);
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/*NOTREACHED*/
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}
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char *ifname(ifp)
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struct ifnet *ifp;
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{
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static char buf[BUFSIZ];
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struct ifnet ifnet;
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char ifnamebuf[IFNAMSIZ];
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KREAD(ifp, &ifnet, struct ifnet);
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KREAD(ifnet.if_name, ifnamebuf, sizeof(ifnamebuf));
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snprintf(buf, sizeof(buf), "%s%d", ifnamebuf,
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ifnet.if_unit); /* does snprintf allow overlap copy?? */
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return buf;
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}
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void kread(addr, buf, len)
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u_long addr;
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void *buf;
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int len;
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{
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if (kvm_read(kvmd, addr, buf, len) != len) {
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perror("kvm_read");
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exit(1);
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}
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}
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void
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if6_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 in6_ifaddr if6a;
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struct in6_multi *mc = 0;
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struct ifaddr *ifap0;
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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_INET6)
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goto nextifap;
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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 = 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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struct ifmultiaddr ifm, *ifmp = 0;
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struct sockaddr_in6 sin6;
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struct in6_multi in6m;
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struct sockaddr_dl sdl;
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int in6_multilist_done = 0;
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KREAD(ifap0, &ifa, struct ifaddr);
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KREAD(ifa.ifa_ifp, &ifnet, struct ifnet);
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if (ifnet.if_multiaddrs.lh_first)
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ifmp = ifnet.if_multiaddrs.lh_first;
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while (ifmp) {
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KREAD(ifmp, &ifm, struct ifmultiaddr);
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if (ifm.ifma_addr == NULL)
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goto nextmulti;
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KREAD(ifm.ifma_addr, &sa, struct sockaddr);
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if (sa.sa_family != AF_INET6)
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goto nextmulti;
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(void)in6_multientry((struct in6_multi *)
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ifm.ifma_protospec);
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if (ifm.ifma_lladdr == 0)
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goto nextmulti;
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KREAD(ifm.ifma_lladdr, &sdl, struct sockaddr_dl);
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printf("\t\t\tmcast-macaddr %s multicnt %d\n",
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ether_ntoa((struct ether_addr *)LLADDR(&sdl)),
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ifm.ifma_refcount);
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nextmulti:
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ifmp = ifm.ifma_link.le_next;
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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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for (mkp = in6_mk.lh_first; mkp; mkp = mk.mk_entry.le_next) {
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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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mk.mk_head.lh_first) {
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printf("\t(on kludge entry for %s)\n", nam);
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in6_multilist(mk.mk_head.lh_first);
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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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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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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(multi.in6m_entry.le_next);
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}
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void
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in6_multilist(mc)
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struct in6_multi *mc;
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{
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while (mc)
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mc = in6_multientry(mc);
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}
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