/* * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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 */ #ifndef lint static const char rcsid[] = "$FreeBSD$"; #endif /* not lint */ /* * Print multicast routing structures and statistics. * * MROUTING 1.0 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "netstat.h" void mroutepr(u_long mfcaddr, u_long vifaddr) { struct mfc *mfctable[MFCTBLSIZ]; struct vif viftable[MAXVIFS]; struct mfc mfc, *m; struct vif *v; vifi_t vifi; int i; int banner_printed; int saved_numeric_addr; vifi_t maxvif = 0; size_t len; len = sizeof(mfctable); if (sysctlbyname("net.inet.ip.mfctable", mfctable, &len, NULL, 0) < 0) { warn("sysctl: net.inet.ip.mfctable"); /* Compatability with older kernels - candidate for removal */ if (mfcaddr == 0) { printf("No IPv4 multicast routing compiled into this system.\n"); return; } kread(mfcaddr, (char *)mfctable, sizeof(mfctable)); } len = sizeof(viftable); if (sysctlbyname("net.inet.ip.viftable", viftable, &len, NULL, 0) < 0) { warn("sysctl: net.inet.ip.viftable"); /* Compatability with older kernels - candidate for removal */ if (vifaddr == 0) { printf("No IPv4 multicast routing compiled into this system.\n"); return; } kread(vifaddr, (char *)viftable, sizeof(viftable)); } saved_numeric_addr = numeric_addr; numeric_addr = 1; banner_printed = 0; for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) { if (v->v_lcl_addr.s_addr == 0) continue; maxvif = vifi; if (!banner_printed) { printf("\nVirtual Interface Table\n" " Vif Thresh Rate Local-Address " "Remote-Address Pkts-In Pkts-Out\n"); banner_printed = 1; } printf(" %2u %6u %4d %-15.15s", /* opposite math of add_vif() */ vifi, v->v_threshold, v->v_rate_limit * 1000 / 1024, routename(v->v_lcl_addr.s_addr)); printf(" %-15.15s", (v->v_flags & VIFF_TUNNEL) ? routename(v->v_rmt_addr.s_addr) : ""); printf(" %9lu %9lu\n", v->v_pkt_in, v->v_pkt_out); } if (!banner_printed) printf("\nVirtual Interface Table is empty\n"); banner_printed = 0; for (i = 0; i < MFCTBLSIZ; ++i) { m = mfctable[i]; while(m) { kread((u_long)m, (char *)&mfc, sizeof mfc); if (!banner_printed) { printf("\nIPv4 Multicast Forwarding Cache\n" " Origin Group " " Packets In-Vif Out-Vifs:Ttls\n"); banner_printed = 1; } printf(" %-15.15s", routename(mfc.mfc_origin.s_addr)); printf(" %-15.15s", routename(mfc.mfc_mcastgrp.s_addr)); printf(" %9lu", mfc.mfc_pkt_cnt); printf(" %3d ", mfc.mfc_parent); for (vifi = 0; vifi <= maxvif; vifi++) { if (mfc.mfc_ttls[vifi] > 0) printf(" %u:%u", vifi, mfc.mfc_ttls[vifi]); } printf("\n"); m = mfc.mfc_next; } } if (!banner_printed) printf("\nMulticast Routing Table is empty\n"); printf("\n"); numeric_addr = saved_numeric_addr; } void mrt_stats(u_long mstaddr) { struct mrtstat mrtstat; size_t len = sizeof mrtstat; if (sysctlbyname("net.inet.ip.mrtstat", &mrtstat, &len, NULL, 0) < 0) { warn("sysctl: net.inet.ip.mrtstat"); /* Compatability with older kernels - candidate for removal */ if (mstaddr == 0) { printf("No IPv4 multicast routing compiled into this system.\n"); return; } kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat)); } printf("IPv4 multicast forwarding:\n"); #define p(f, m) if (mrtstat.f || sflag <= 1) \ printf(m, mrtstat.f, plural(mrtstat.f)) #define p2(f, m) if (mrtstat.f || sflag <= 1) \ printf(m, mrtstat.f, plurales(mrtstat.f)) p(mrts_mfc_lookups, "\t%lu multicast forwarding cache lookup%s\n"); p2(mrts_mfc_misses, "\t%lu multicast forwarding cache miss%s\n"); p(mrts_upcalls, "\t%lu upcall%s to mrouted\n"); p(mrts_upq_ovflw, "\t%lu upcall queue overflow%s\n"); p(mrts_upq_sockfull, "\t%lu upcall%s dropped due to full socket buffer\n"); p(mrts_cache_cleanups, "\t%lu cache cleanup%s\n"); p(mrts_no_route, "\t%lu datagram%s with no route for origin\n"); p(mrts_bad_tunnel, "\t%lu datagram%s arrived with bad tunneling\n"); p(mrts_cant_tunnel, "\t%lu datagram%s could not be tunneled\n"); p(mrts_wrong_if, "\t%lu datagram%s arrived on wrong interface\n"); p(mrts_drop_sel, "\t%lu datagram%s selectively dropped\n"); p(mrts_q_overflow, "\t%lu datagram%s dropped due to queue overflow\n"); p(mrts_pkt2large, "\t%lu datagram%s dropped for being too large\n"); #undef p2 #undef p }