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/* $OpenBSD: mroute6.c,v 1.23 2017/05/08 09:31:34 rzalamena Exp $ */ |
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/* |
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* Copyright (C) 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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/* |
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* Copyright (c) 1989 Stephen Deering |
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* Copyright (c) 1992, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* This code is derived from software contributed to Berkeley by |
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* Stephen Deering of Stanford University. |
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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 University 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 REGENTS 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 REGENTS 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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* @(#)mroute.c 8.2 (Berkeley) 4/28/95 |
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*/ |
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#include <sys/types.h> |
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#include <sys/select.h> |
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#include <sys/socket.h> |
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#include <sys/sysctl.h> |
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#include <net/if.h> |
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#include <netinet/in.h> |
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#include <netinet6/ip6_mroute.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <util.h> |
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#include "netstat.h" |
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#define WID_ORG (lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */ |
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#define WID_GRP (lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */ |
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void |
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mroute6pr(void) |
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{ |
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char *buf = NULL; |
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char fmtbuf[FMT_SCALED_STRSIZE]; |
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struct mf6cinfo *mfc; |
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struct mif6info *mif; |
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size_t needed, mifi, nummifs, mfci, nummfcs; |
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int banner_printed, saved_nflag; |
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mifi_t maxmif = 0; |
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u_int mrtproto; |
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int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; |
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size_t len = sizeof(int); |
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if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), |
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&mrtproto, &len, NULL, 0) == -1) { |
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if (errno != ENOPROTOOPT) |
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warn("mroute"); |
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return; |
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} |
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switch (mrtproto) { |
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case 0: |
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break; |
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default: |
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printf("IPv6 multicast routing protocol %u, unknown\n", |
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mrtproto); |
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return; |
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} |
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saved_nflag = nflag; |
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nflag = 1; |
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mib[3] = IPV6CTL_MRTMIF; |
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needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf); |
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nummifs = needed / sizeof(*mif); |
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mif = (struct mif6info *)buf; |
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if (nummifs) |
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maxmif = mif[nummifs - 1].m6_mifi; |
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banner_printed = 0; |
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for (mifi = 0; mifi < nummifs; ++mifi, ++mif) { |
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char ifname[IFNAMSIZ]; |
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if (mif->m6_ifindex == 0) |
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continue; |
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if (!banner_printed) { |
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printf("\nIPv6 Multicast Interface Table\n" |
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" Mif Rate PhyIF " |
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"Pkts-In Pkts-Out\n"); |
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banner_printed = 1; |
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} |
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printf(" %2u %4d", |
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mif->m6_mifi, mif->m6_rate_limit); |
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printf(" %5s", (mif->m6_flags & MIFF_REGISTER) ? |
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"reg0" : if_indextoname(mif->m6_ifindex, ifname)); |
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printf(" %9llu %9llu\n", mif->m6_pkt_in, mif->m6_pkt_out); |
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} |
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if (!banner_printed) |
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printf("IPv6 Multicast Interface Table is empty\n"); |
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mib[3] = IPV6CTL_MRTMFC; |
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needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf); |
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nummfcs = needed / sizeof(*mfc); |
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mfc = (struct mf6cinfo *)buf; |
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banner_printed = 0; |
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for (mfci = 0; mfci < nummfcs; ++mfci, ++mfc) { |
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if (!banner_printed) { |
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printf("\nIPv6 Multicast Forwarding Cache\n"); |
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printf(" %-*.*s %-*.*s %s", |
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WID_ORG, WID_ORG, "Origin", |
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WID_GRP, WID_GRP, "Group", |
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" Packets Waits In-Mif Out-Mifs\n"); |
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banner_printed = 1; |
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} |
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printf(" %-*.*s", WID_ORG, WID_ORG, |
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routename6(&mfc->mf6c_origin)); |
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printf(" %-*.*s", WID_GRP, WID_GRP, |
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routename6(&mfc->mf6c_mcastgrp)); |
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fmt_scaled(mfc->mf6c_pkt_cnt, fmtbuf); |
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printf(" %9s", fmtbuf); |
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printf(" %3llu", mfc->mf6c_stall_cnt); |
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if (mfc->mf6c_parent == MF6C_INCOMPLETE_PARENT) |
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printf(" --- "); |
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else |
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printf(" %3d ", mfc->mf6c_parent); |
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for (mifi = 0; mifi <= MAXMIFS; mifi++) { |
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if (IF_ISSET(mifi, &mfc->mf6c_ifset)) |
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printf(" %zu", mifi); |
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} |
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printf("\n"); |
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} |
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if (!banner_printed) |
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printf("IPv6 Multicast Routing Table is empty"); |
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printf("\n"); |
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nflag = saved_nflag; |
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free(buf); |
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} |
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void |
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mrt6_stats(void) |
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{ |
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struct mrt6stat mrt6stat; |
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u_int mrt6proto; |
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int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; |
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int mib2[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS }; |
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size_t len = sizeof(int); |
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if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), |
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&mrt6proto, &len, NULL, 0) == -1) { |
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if (errno != ENOPROTOOPT) |
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warn("mroute"); |
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return; |
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} |
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switch (mrt6proto) { |
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case 0: |
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printf("no IPv6 multicast routing compiled into this system\n"); |
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return; |
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default: |
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printf("IPv6 multicast routing protocol %u, unknown\n", |
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mrt6proto); |
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return; |
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} |
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len = sizeof(mrt6stat); |
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if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]), |
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&mrt6stat, &len, NULL, 0) == -1) { |
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if (errno != ENOPROTOOPT) |
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warn("mroute"); |
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return; |
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} |
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printf("multicast forwarding:\n"); |
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printf("\t%llu multicast forwarding cache lookup%s\n", |
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mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups)); |
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printf("\t%llu multicast forwarding cache miss%s\n", |
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mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses)); |
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printf("\t%llu upcall%s to mrouted\n", |
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mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls)); |
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printf("\t%llu upcall queue overflow%s\n", |
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mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw)); |
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printf("\t%llu upcall%s dropped due to full socket buffer\n", |
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mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull)); |
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printf("\t%llu cache cleanup%s\n", |
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mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups)); |
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printf("\t%llu datagram%s with no route for origin\n", |
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mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route)); |
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printf("\t%llu datagram%s arrived with bad tunneling\n", |
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mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel)); |
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printf("\t%llu datagram%s could not be tunneled\n", |
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mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel)); |
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printf("\t%llu datagram%s arrived on wrong interface\n", |
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mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if)); |
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printf("\t%llu datagram%s selectively dropped\n", |
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mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel)); |
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printf("\t%llu datagram%s dropped due to queue overflow\n", |
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mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow)); |
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printf("\t%llu datagram%s dropped for being too large\n", |
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mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large)); |
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} |