/* $OpenBSD: mroute6.c,v 1.24 2018/06/04 19:20:12 kn 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. */ /* * Copyright (c) 1989 Stephen Deering * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Stephen Deering of Stanford University. * * 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 University 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 REGENTS 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 REGENTS 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. * * @(#)mroute.c 8.2 (Berkeley) 4/28/95 */ #include #include #include #include #include #include #include #include #include #include #include #include #include "netstat.h" #define WID_ORG (lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */ #define WID_GRP (lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */ void mroute6pr(void) { char *buf = NULL; char fmtbuf[FMT_SCALED_STRSIZE]; struct mf6cinfo *mfc; struct mif6info *mif; size_t needed, mifi, nummifs, mfci, nummfcs; int banner_printed, saved_nflag; u_int mrtproto; int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; size_t len = sizeof(int); if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), &mrtproto, &len, NULL, 0) == -1) { if (errno != ENOPROTOOPT) warn("mroute"); return; } switch (mrtproto) { case 0: break; default: printf("IPv6 multicast routing protocol %u, unknown\n", mrtproto); return; } saved_nflag = nflag; nflag = 1; mib[3] = IPV6CTL_MRTMIF; needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf); nummifs = needed / sizeof(*mif); mif = (struct mif6info *)buf; banner_printed = 0; for (mifi = 0; mifi < nummifs; ++mifi, ++mif) { char ifname[IFNAMSIZ]; if (mif->m6_ifindex == 0) continue; if (!banner_printed) { printf("\nIPv6 Multicast Interface Table\n" " Mif Rate PhyIF " "Pkts-In Pkts-Out\n"); banner_printed = 1; } printf(" %2u %4d", mif->m6_mifi, mif->m6_rate_limit); printf(" %5s", (mif->m6_flags & MIFF_REGISTER) ? "reg0" : if_indextoname(mif->m6_ifindex, ifname)); printf(" %9llu %9llu\n", mif->m6_pkt_in, mif->m6_pkt_out); } if (!banner_printed) printf("IPv6 Multicast Interface Table is empty\n"); mib[3] = IPV6CTL_MRTMFC; needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf); nummfcs = needed / sizeof(*mfc); mfc = (struct mf6cinfo *)buf; banner_printed = 0; for (mfci = 0; mfci < nummfcs; ++mfci, ++mfc) { if (!banner_printed) { printf("\nIPv6 Multicast Forwarding Cache\n"); printf(" %-*.*s %-*.*s %s", WID_ORG, WID_ORG, "Origin", WID_GRP, WID_GRP, "Group", " Packets Waits In-Mif Out-Mifs\n"); banner_printed = 1; } printf(" %-*.*s", WID_ORG, WID_ORG, routename6(&mfc->mf6c_origin)); printf(" %-*.*s", WID_GRP, WID_GRP, routename6(&mfc->mf6c_mcastgrp)); fmt_scaled(mfc->mf6c_pkt_cnt, fmtbuf); printf(" %9s", fmtbuf); printf(" %3llu", mfc->mf6c_stall_cnt); if (mfc->mf6c_parent == MF6C_INCOMPLETE_PARENT) printf(" --- "); else printf(" %3d ", mfc->mf6c_parent); for (mifi = 0; mifi <= MAXMIFS; mifi++) { if (IF_ISSET(mifi, &mfc->mf6c_ifset)) printf(" %zu", mifi); } printf("\n"); } if (!banner_printed) printf("IPv6 Multicast Routing Table is empty"); printf("\n"); nflag = saved_nflag; free(buf); } void mrt6_stats(void) { struct mrt6stat mrt6stat; u_int mrt6proto; int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; int mib2[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS }; size_t len = sizeof(int); if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), &mrt6proto, &len, NULL, 0) == -1) { if (errno != ENOPROTOOPT) warn("mroute"); return; } switch (mrt6proto) { case 0: printf("no IPv6 multicast routing compiled into this system\n"); return; default: printf("IPv6 multicast routing protocol %u, unknown\n", mrt6proto); return; } len = sizeof(mrt6stat); if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]), &mrt6stat, &len, NULL, 0) == -1) { if (errno != ENOPROTOOPT) warn("mroute"); return; } printf("multicast forwarding:\n"); printf("\t%llu multicast forwarding cache lookup%s\n", mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups)); printf("\t%llu multicast forwarding cache miss%s\n", mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses)); printf("\t%llu upcall%s to mrouted\n", mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls)); printf("\t%llu upcall queue overflow%s\n", mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw)); printf("\t%llu upcall%s dropped due to full socket buffer\n", mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull)); printf("\t%llu cache cleanup%s\n", mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups)); printf("\t%llu datagram%s with no route for origin\n", mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route)); printf("\t%llu datagram%s arrived with bad tunneling\n", mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel)); printf("\t%llu datagram%s could not be tunneled\n", mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel)); printf("\t%llu datagram%s arrived on wrong interface\n", mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if)); printf("\t%llu datagram%s selectively dropped\n", mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel)); printf("\t%llu datagram%s dropped due to queue overflow\n", mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow)); printf("\t%llu datagram%s dropped for being too large\n", mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large)); }