Index: stable/12/usr.bin/netstat/mroute.c =================================================================== --- stable/12/usr.bin/netstat/mroute.c (revision 355028) +++ stable/12/usr.bin/netstat/mroute.c (revision 355029) @@ -1,460 +1,458 @@ /*- * SPDX-License-Identifier: BSD-4-Clause * * 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 */ #include __FBSDID("$FreeBSD$"); /* * Print multicast routing structures and statistics. * * MROUTING 1.0 */ #include #include #include #include #include #include #include #include #include #include #include #include #define _KERNEL 1 #include #undef _KERNEL #include #include #include #include #include #include #include #include "netstat.h" #include "nl_defs.h" static void print_bw_meter(struct bw_meter *, int *); static void print_mfc(struct mfc *, int, int *); static void print_bw_meter(struct bw_meter *bw_meter, int *banner_printed) { char s1[256], s2[256], s3[256]; struct timeval now, end, delta; gettimeofday(&now, NULL); if (! *banner_printed) { xo_open_list("bandwidth-meter"); xo_emit(" {T:Bandwidth Meters}\n"); xo_emit(" {T:/%-30s}", "Measured(Start|Packets|Bytes)"); xo_emit(" {T:/%s}", "Type"); xo_emit(" {T:/%-30s}", "Thresh(Interval|Packets|Bytes)"); xo_emit(" {T:Remain}"); xo_emit("\n"); *banner_printed = 1; } xo_open_instance("bandwidth-meter"); /* The measured values */ if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS) { snprintf(s1, sizeof(s1), "%ju", (uintmax_t)bw_meter->bm_measured.b_packets); xo_emit("{e:measured-packets/%ju}", (uintmax_t)bw_meter->bm_measured.b_packets); } else strcpy(s1, "?"); if (bw_meter->bm_flags & BW_METER_UNIT_BYTES) { snprintf(s2, sizeof(s2), "%ju", (uintmax_t)bw_meter->bm_measured.b_bytes); xo_emit("{e:measured-bytes/%ju}", (uintmax_t)bw_meter->bm_measured.b_bytes); } else strcpy(s2, "?"); xo_emit(" {[:-30}{:start-time/%lu.%06lu}|{q:measured-packets/%s}" "|{q:measured-bytes%s}{]:}", (u_long)bw_meter->bm_start_time.tv_sec, (u_long)bw_meter->bm_start_time.tv_usec, s1, s2); /* The type of entry */ xo_emit(" {t:type/%-3s}", (bw_meter->bm_flags & BW_METER_GEQ) ? ">=" : (bw_meter->bm_flags & BW_METER_LEQ) ? "<=" : "?"); /* The threshold values */ if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS) { snprintf(s1, sizeof(s1), "%ju", (uintmax_t)bw_meter->bm_threshold.b_packets); xo_emit("{e:threshold-packets/%ju}", (uintmax_t)bw_meter->bm_threshold.b_packets); } else strcpy(s1, "?"); if (bw_meter->bm_flags & BW_METER_UNIT_BYTES) { snprintf(s2, sizeof(s2), "%ju", (uintmax_t)bw_meter->bm_threshold.b_bytes); xo_emit("{e:threshold-bytes/%ju}", (uintmax_t)bw_meter->bm_threshold.b_bytes); } else strcpy(s2, "?"); xo_emit(" {[:-30}{:threshold-time/%lu.%06lu}|{q:threshold-packets/%s}" "|{q:threshold-bytes%s}{]:}", (u_long)bw_meter->bm_threshold.b_time.tv_sec, (u_long)bw_meter->bm_threshold.b_time.tv_usec, s1, s2); /* Remaining time */ timeradd(&bw_meter->bm_start_time, &bw_meter->bm_threshold.b_time, &end); if (timercmp(&now, &end, <=)) { timersub(&end, &now, &delta); snprintf(s3, sizeof(s3), "%lu.%06lu", (u_long)delta.tv_sec, (u_long)delta.tv_usec); } else { /* Negative time */ timersub(&now, &end, &delta); snprintf(s3, sizeof(s3), "-%lu.06%lu", (u_long)delta.tv_sec, (u_long)delta.tv_usec); } xo_emit(" {:remaining-time/%s}", s3); xo_open_instance("bandwidth-meter"); xo_emit("\n"); } static void print_mfc(struct mfc *m, int maxvif, int *banner_printed) { struct sockaddr_in sin; struct sockaddr *sa = (struct sockaddr *)&sin; struct bw_meter bw_meter, *bwm; int bw_banner_printed; int error; vifi_t vifi; bw_banner_printed = 0; memset(&sin, 0, sizeof(sin)); sin.sin_len = sizeof(sin); sin.sin_family = AF_INET; if (! *banner_printed) { xo_open_list("multicast-forwarding-entry"); xo_emit("\n{T:IPv4 Multicast Forwarding Table}\n" " {T:Origin} {T:Group} " " {T:Packets In-Vif} {T:Out-Vifs:Ttls}\n"); *banner_printed = 1; } memcpy(&sin.sin_addr, &m->mfc_origin, sizeof(sin.sin_addr)); xo_emit(" {:origin-address/%-15.15s}", routename(sa, numeric_addr)); memcpy(&sin.sin_addr, &m->mfc_mcastgrp, sizeof(sin.sin_addr)); xo_emit(" {:group-address/%-15.15s}", routename(sa, numeric_addr)); xo_emit(" {:sent-packets/%9lu}", m->mfc_pkt_cnt); xo_emit(" {:parent/%3d} ", m->mfc_parent); xo_open_list("vif-ttl"); for (vifi = 0; vifi <= maxvif; vifi++) { if (m->mfc_ttls[vifi] > 0) { xo_open_instance("vif-ttl"); xo_emit(" {k:vif/%u}:{:ttl/%u}", vifi, m->mfc_ttls[vifi]); xo_close_instance("vif-ttl"); } } xo_close_list("vif-ttl"); xo_emit("\n"); /* * XXX We break the rules and try to use KVM to read the * bandwidth meters, they are not retrievable via sysctl yet. */ bwm = m->mfc_bw_meter; while (bwm != NULL) { error = kread((u_long)bwm, (char *)&bw_meter, sizeof(bw_meter)); if (error) break; print_bw_meter(&bw_meter, &bw_banner_printed); bwm = bw_meter.bm_mfc_next; } if (banner_printed) xo_close_list("bandwidth-meter"); } void mroutepr() { struct sockaddr_in sin; struct sockaddr *sa = (struct sockaddr *)&sin; struct vif viftable[MAXVIFS]; struct vif *v; struct mfc *m; u_long pmfchashtbl, pmfctablesize, pviftbl; int banner_printed; int saved_numeric_addr; size_t len; vifi_t vifi, maxvif; saved_numeric_addr = numeric_addr; numeric_addr = 1; memset(&sin, 0, sizeof(sin)); sin.sin_len = sizeof(sin); sin.sin_family = AF_INET; /* * TODO: * The VIF table will move to hanging off the struct if_info for * each IPv4 configured interface. Currently it is statically * allocated, and retrieved either using KVM or an opaque SYSCTL. * * This can't happen until the API documented in multicast(4) * is itself refactored. The historical reason why VIFs use * a separate ifindex space is entirely due to the legacy * capability of the MROUTING code to create IPIP tunnels on * the fly to support DVMRP. When gif(4) became available, this * functionality was deprecated, as PIM does not use it. */ maxvif = 0; pmfchashtbl = pmfctablesize = pviftbl = 0; len = sizeof(viftable); if (live) { if (sysctlbyname("net.inet.ip.viftable", viftable, &len, NULL, 0) < 0) { xo_warn("sysctl: net.inet.ip.viftable"); return; } } else { pmfchashtbl = nl[N_MFCHASHTBL].n_value; pmfctablesize = nl[N_MFCTABLESIZE].n_value; pviftbl = nl[N_VIFTABLE].n_value; if (pmfchashtbl == 0 || pmfctablesize == 0 || pviftbl == 0) { xo_warnx("No IPv4 MROUTING kernel support."); return; } kread(pviftbl, (char *)viftable, sizeof(viftable)); } 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) { xo_emit("\n{T:IPv4 Virtual Interface Table\n" " Vif Thresh Local-Address " "Remote-Address Pkts-In Pkts-Out}\n"); banner_printed = 1; xo_open_list("vif"); } xo_open_instance("vif"); memcpy(&sin.sin_addr, &v->v_lcl_addr, sizeof(sin.sin_addr)); xo_emit(" {:vif/%2u} {:threshold/%6u} {:route/%-15.15s}", /* opposite math of add_vif() */ vifi, v->v_threshold, routename(sa, numeric_addr)); memcpy(&sin.sin_addr, &v->v_rmt_addr, sizeof(sin.sin_addr)); xo_emit(" {:source/%-15.15s}", (v->v_flags & VIFF_TUNNEL) ? routename(sa, numeric_addr) : ""); xo_emit(" {:received-packets/%9lu} {:sent-packets/%9lu}\n", v->v_pkt_in, v->v_pkt_out); xo_close_instance("vif"); } if (banner_printed) xo_close_list("vif"); else xo_emit("\n{T:IPv4 Virtual Interface Table is empty}\n"); banner_printed = 0; /* * TODO: * The MFC table will move into the AF_INET radix trie in future. * In 8.x, it becomes a dynamically allocated structure referenced * by a hashed LIST, allowing more than 256 entries w/o kernel tuning. * * If retrieved via opaque SYSCTL, the kernel will coalesce it into * a static table for us. * If retrieved via KVM, the hash list pointers must be followed. */ if (live) { struct mfc *mfctable; len = 0; if (sysctlbyname("net.inet.ip.mfctable", NULL, &len, NULL, 0) < 0) { xo_warn("sysctl: net.inet.ip.mfctable"); return; } mfctable = malloc(len); if (mfctable == NULL) { xo_warnx("malloc %lu bytes", (u_long)len); return; } if (sysctlbyname("net.inet.ip.mfctable", mfctable, &len, NULL, 0) < 0) { free(mfctable); xo_warn("sysctl: net.inet.ip.mfctable"); return; } m = mfctable; while (len >= sizeof(*m)) { print_mfc(m++, maxvif, &banner_printed); len -= sizeof(*m); } if (banner_printed) xo_close_list("multicast-forwarding-entry"); if (len != 0) xo_warnx("print_mfc: %lu trailing bytes", (u_long)len); free(mfctable); } else { LIST_HEAD(, mfc) *mfchashtbl; u_long i, mfctablesize; struct mfc mfc; int error; error = kread(pmfctablesize, (char *)&mfctablesize, sizeof(u_long)); if (error) { xo_warn("kread: mfctablesize"); return; } len = sizeof(*mfchashtbl) * mfctablesize; mfchashtbl = malloc(len); if (mfchashtbl == NULL) { xo_warnx("malloc %lu bytes", (u_long)len); return; } kread(pmfchashtbl, (char *)&mfchashtbl, len); for (i = 0; i < mfctablesize; i++) { LIST_FOREACH(m, &mfchashtbl[i], mfc_hash) { kread((u_long)m, (char *)&mfc, sizeof(mfc)); print_mfc(m, maxvif, &banner_printed); } } if (banner_printed) xo_close_list("multicast-forwarding-entry"); free(mfchashtbl); } if (!banner_printed) xo_emit("\n{T:IPv4 Multicast Forwarding Table is empty}\n"); xo_emit("\n"); numeric_addr = saved_numeric_addr; } void mrt_stats() { struct mrtstat mrtstat; u_long mstaddr; mstaddr = nl[N_MRTSTAT].n_value; - if (mstaddr == 0) { - fprintf(stderr, "No IPv4 MROUTING kernel support.\n"); - return; - } - if (fetch_stats("net.inet.ip.mrtstat", mstaddr, &mrtstat, - sizeof(mrtstat), kread_counters) != 0) + sizeof(mrtstat), kread_counters) != 0) { + if ((live && errno == ENOENT) || (!live && mstaddr == 0)) + fprintf(stderr, "No IPv4 MROUTING kernel support.\n"); return; + } xo_emit("{T:IPv4 multicast forwarding}:\n"); #define p(f, m) if (mrtstat.f || sflag <= 1) \ xo_emit(m, (uintmax_t)mrtstat.f, plural(mrtstat.f)) #define p2(f, m) if (mrtstat.f || sflag <= 1) \ xo_emit(m, (uintmax_t)mrtstat.f, plurales(mrtstat.f)) xo_open_container("multicast-statistics"); p(mrts_mfc_lookups, "\t{:cache-lookups/%ju} " "{N:/multicast forwarding cache lookup%s}\n"); p2(mrts_mfc_misses, "\t{:cache-misses/%ju} " "{N:/multicast forwarding cache miss%s}\n"); p(mrts_upcalls, "\t{:upcalls-total/%ju} " "{N:/upcall%s to multicast routing daemon}\n"); p(mrts_upq_ovflw, "\t{:upcall-overflows/%ju} " "{N:/upcall queue overflow%s}\n"); p(mrts_upq_sockfull, "\t{:upcalls-dropped-full-buffer/%ju} " "{N:/upcall%s dropped due to full socket buffer}\n"); p(mrts_cache_cleanups, "\t{:cache-cleanups/%ju} " "{N:/cache cleanup%s}\n"); p(mrts_no_route, "\t{:dropped-no-origin/%ju} " "{N:/datagram%s with no route for origin}\n"); p(mrts_bad_tunnel, "\t{:dropped-bad-tunnel/%ju} " "{N:/datagram%s arrived with bad tunneling}\n"); p(mrts_cant_tunnel, "\t{:dropped-could-not-tunnel/%ju} " "{N:/datagram%s could not be tunneled}\n"); p(mrts_wrong_if, "\t{:dropped-wrong-incoming-interface/%ju} " "{N:/datagram%s arrived on wrong interface}\n"); p(mrts_drop_sel, "\t{:dropped-selectively/%ju} " "{N:/datagram%s selectively dropped}\n"); p(mrts_q_overflow, "\t{:dropped-queue-overflow/%ju} " "{N:/datagram%s dropped due to queue overflow}\n"); p(mrts_pkt2large, "\t{:dropped-too-large/%ju} " "{N:/datagram%s dropped for being too large}\n"); #undef p2 #undef p } Index: stable/12 =================================================================== --- stable/12 (revision 355028) +++ stable/12 (revision 355029) Property changes on: stable/12 ___________________________________________________________________ Modified: svn:mergeinfo ## -0,0 +0,1 ## Merged /head:r354633