 @@ -1,397 +1,397 @@
-/*	$NetBSD: mroute.c,v 1.25 2014/11/06 21:30:09 christos Exp $	*/
+/*	$NetBSD: mroute.c,v 1.26 2019/10/06 00:27:50 mrg Exp $	*/
 /*
  * 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.
+ *
  *	from: @(#)mroute.c	8.1 (Berkeley) 6/6/93
  */
 /*
  * Copyright (c) 1989 Stephen Deering
+ *
  * 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.
+ *
  *	from: @(#)mroute.c	8.1 (Berkeley) 6/6/93
  */
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "from: @(#)mroute.c	8.1 (Berkeley) 6/6/93";
 #else
-__RCSID("$NetBSD: mroute.c,v 1.25 2014/11/06 21:30:09 christos Exp $");
+__RCSID("$NetBSD: mroute.c,v 1.26 2019/10/06 00:27:50 mrg Exp $");
 #endif
 #endif /* not lint */
 /*
  * Print multicast routing structures and statistics.
+ *
  * MROUTING 1.0
  */
 #include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/socketvar.h>
 #include <sys/protosw.h>
 #include <net/if.h>
 #include <net/route.h>
 #include <netinet/in.h>
 #include <netinet/igmp.h>
 #define _KERNEL
 #include <netinet/ip_mroute.h>
 #undef _KERNEL
 #include <stdio.h>
 #include <stdlib.h>
 #include <kvm.h>
 #include "netstat.h"
 #include "rtutil.h"
 static char *pktscale(u_long);
 static void print_bw_meter(struct bw_meter *, int *);
 static char *
 pktscale(u_long n)
+{
 	static char buf[20];
 	char t;
 	if (n < 1024)
 		t = ' ';
 	else if (n < 1024 * 1024) {
 		t = 'k';
 		n /= 1024;
 	} else {
 		t = 'm';
 		n /= 1048576;
+	}
 	(void)snprintf(buf, sizeof buf, "%lu%c", n, t);
 	return (buf);
+}
 void
 mroutepr(u_long mrpaddr, u_long mfchashtbladdr, u_long mfchashaddr,
 	u_long vifaddr)
+{
 	u_int mrtproto;
 	LIST_HEAD(, mfc) *mfchashtbl;
 	u_long mfchash, i;
 	struct vif viftable[MAXVIFS];
 	struct mfc *mfcp, mfc;
 	struct vif *v;
 	vifi_t vifi;
 	int banner_printed;
 	int saved_numeric_addr;
 	int numvifs;
 	int nmfc;		/* No. of cache entries */
 	if (mrpaddr == 0) {
 		printf("ip_mrtproto: symbol not in namelist\n");
 		return;
+	}
 	kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
 	switch (mrtproto) {
 	case 0:
 		printf("no multicast routing compiled into this system\n");
 		return;
 	case IGMP_DVMRP:
 		break;
 	default:
 		printf("multicast routing protocol %u, unknown\n", mrtproto);
 		return;
+	}
 	if (mfchashtbladdr == 0) {
 		printf("mfchashtbl: symbol not in namelist\n");
 		return;
+	}
 	if (mfchashaddr == 0) {
 		printf("mfchash: symbol not in namelist\n");
 		return;
+	}
 	if (vifaddr == 0) {
 		printf("viftable: symbol not in namelist\n");
 		return;
+	}
 	saved_numeric_addr = numeric_addr;
 	numeric_addr = 1;
 	kread(vifaddr, (char *)&viftable, sizeof(viftable));
 	banner_printed = 0;
 	numvifs = 0;
 	for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
 		if (v->v_lcl_addr.s_addr == 0)
 			continue;
 		numvifs = vifi;
 		if (!banner_printed) {
 			printf("\nVirtual Interface Table\n %s%s",
 			    "Vif  Thresh  Limit  Local-Address    ",
 			    "Remote-Address   Pkt_in  Pkt_out\n");
 			banner_printed = 1;
+		}
 		printf(" %3u     %3u  %5u  %-15.15s",
 		    vifi, v->v_threshold, v->v_rate_limit,
 		    routename4(v->v_lcl_addr.s_addr, nflag));
 		printf("  %-15.15s  %6lu  %7lu\n", (v->v_flags & VIFF_TUNNEL) ?
 		    routename4(v->v_rmt_addr.s_addr, nflag) : "",
 		    v->v_pkt_in, v->v_pkt_out);
+	}
 	if (!banner_printed)
 		printf("\nVirtual Interface Table is empty\n");
 	kread(mfchashtbladdr, (char *)&mfchashtbl, sizeof(mfchashtbl));
 	kread(mfchashaddr, (char *)&mfchash, sizeof(mfchash));
 	banner_printed = 0;
 	nmfc = 0;
 	if (mfchashtbl != 0)
 	for (i = 0; i <= mfchash; ++i) {
 		kread((u_long)&mfchashtbl[i], (char *)&mfcp, sizeof(mfcp));
 		for (; mfcp != 0; mfcp = mfc.mfc_hash.le_next) {
 			if (!banner_printed) {
 				printf("\nMulticast Forwarding Cache\n %s%s",
 				    "Hash  Origin           Mcastgroup       ",
 				    "Traffic  In-Vif  Out-Vifs/Forw-ttl\n");
 				banner_printed = 1;
+			}
 			kread((u_long)mfcp, (char *)&mfc, sizeof(mfc));
 			printf("  %3lu  %-15.15s",
 			    i, routename4(mfc.mfc_origin.s_addr, nflag));
 			printf("  %-15.15s  %7s     %3u ",
 			    routename4(mfc.mfc_mcastgrp.s_addr, nflag),
 			    pktscale(mfc.mfc_pkt_cnt), mfc.mfc_parent);
 			for (vifi = 0; vifi <= numvifs; ++vifi)
 				if (mfc.mfc_ttls[vifi])
 					printf(" %u/%u", vifi, mfc.mfc_ttls[vifi]);
 			printf("\n");
 			/* Print the bw meter information */
+			{
 				struct bw_meter bw_meter, *bwm;
 				int banner_printed2 = 0;
 				bwm = mfc.mfc_bw_meter;
 				while (bwm) {
 				kread((u_long)bwm,
 				      (char *)&bw_meter,
 				      sizeof bw_meter);
 				print_bw_meter(&bw_meter,
 					       &banner_printed2);
 				bwm = bw_meter.bm_mfc_next;
+				}
 #if 0	/* Don't ever print it? */
 				if (! banner_printed2)
 				    printf("\n  No Bandwidth Meters\n");
 #endif
+			}
 			nmfc++;
+		}
+	}
 	if (!banner_printed)
 		printf("\nMulticast Forwarding Cache is empty\n");
 	else
 		printf("\nTotal no. of entries in cache: %d\n", nmfc);
 	printf("\n");
 	numeric_addr = saved_numeric_addr;
+}
 static void
 print_bw_meter(struct bw_meter *bw_meter, int *banner_printed)
+{
-	char s0[256], s1[256], s2[256], s3[256];
+	char s0[256*3], s1[256], s2[256], s3[256];
 	struct timeval now, end, delta;
 	gettimeofday(&now, NULL);
 	if (! *banner_printed) {
 		printf(" Bandwidth Meters\n");
 		printf("  %-30s", "Measured(Start|Packets|Bytes)");
 		printf(" %s", "Type");
 		printf("  %-30s", "Thresh(Interval|Packets|Bytes)");
 		printf(" Remain");
 		printf("\n");
 		*banner_printed = 1;
+	}
 	/* The measured values */
 	if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
-		sprintf(s1, "%llu", (unsigned long long)bw_meter->bm_measured.b_packets);
+		snprintf(s1, sizeof s1, "%llu", (unsigned long long)bw_meter->bm_measured.b_packets);
 	else
-		sprintf(s1, "?");
+		snprintf(s1, sizeof s1, "?");
 	if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
-		sprintf(s2, "%llu", (unsigned long long)bw_meter->bm_measured.b_bytes);
+		snprintf(s2, sizeof s2, "%llu", (unsigned long long)bw_meter->bm_measured.b_bytes);
 	else
-		sprintf(s2, "?");
+		snprintf(s2, sizeof s2, "?");
-	sprintf(s0, "%lld.%ld|%s|%s",
+	snprintf(s0, sizeof s0, "%lld.%ld|%s|%s",
 		(long long)bw_meter->bm_start_time.tv_sec,
 		(long)bw_meter->bm_start_time.tv_usec,
 		s1, s2);
 	printf("  %-30s", s0);
 	/* The type of entry */
-	sprintf(s0, "%s", "?");
+	snprintf(s0, sizeof s0, "%s", "?");
 	if (bw_meter->bm_flags & BW_METER_GEQ)
-		sprintf(s0, "%s", ">=");
+		snprintf(s0, sizeof s0, "%s", ">=");
 	else if (bw_meter->bm_flags & BW_METER_LEQ)
-		sprintf(s0, "%s", "<=");
+		snprintf(s0, sizeof s0, "%s", "<=");
 	printf("  %-3s", s0);
 	/* The threshold values */
 	if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
-		sprintf(s1, "%llu", (unsigned long long)bw_meter->bm_threshold.b_packets);
+		snprintf(s1, sizeof s1, "%llu", (unsigned long long)bw_meter->bm_threshold.b_packets);
 	else
-		sprintf(s1, "?");
+		snprintf(s1, sizeof s1, "?");
 	if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
-		sprintf(s2, "%llu", (unsigned long long)bw_meter->bm_threshold.b_bytes);
+		snprintf(s2, sizeof s2, "%llu", (unsigned long long)bw_meter->bm_threshold.b_bytes);
 	else
-		sprintf(s2, "?");
+		snprintf(s2, sizeof s2, "?");
-	sprintf(s0, "%lld.%ld|%s|%s",
+	snprintf(s0, sizeof s0, "%lld.%ld|%s|%s",
 		(long long)bw_meter->bm_threshold.b_time.tv_sec,
 		(long)bw_meter->bm_threshold.b_time.tv_usec,
 		s1, s2);
 	printf("  %-30s", s0);
 	/* Remaining time */
 	timeradd(&bw_meter->bm_start_time,
 		 &bw_meter->bm_threshold.b_time, &end);
 	if (timercmp(&now, &end, <=)) {
 		timersub(&end, &now, &delta);
-		sprintf(s3, "%lld.%ld",
+		snprintf(s3, sizeof s3, "%lld.%ld",
 		    (long long)delta.tv_sec, (long)delta.tv_usec);
 	} else {
 		/* Negative time */
 		timersub(&now, &end, &delta);
-		sprintf(s3, "-%lld.%ld",
+		snprintf(s3, sizeof s3, "-%lld.%ld",
 		    (long long)delta.tv_sec, (long)delta.tv_usec);
+	}
 	printf(" %s", s3);
 	printf("\n");
+}
 void
 mrt_stats(u_long mrpaddr, u_long mstaddr)
+{
 	u_int mrtproto;
 	struct mrtstat mrtstat;
 	if (mrpaddr == 0) {
 		printf("ip_mrtproto: symbol not in namelist\n");
 		return;
+	}
 	kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
 	switch (mrtproto) {
 	case 0:
 		printf("no multicast routing compiled into this system\n");
 		return;
 	case IGMP_DVMRP:
 		break;
 	default:
 		printf("multicast routing protocol %u, unknown\n", mrtproto);
 		return;
+	}
 	if (mstaddr == 0) {
 		printf("mrtstat: symbol not in namelist\n");
 		return;
+	}
 	kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
 	printf("multicast routing:\n");
 	printf("\t%lu datagram%s with no route for origin\n",
 	    mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
 	printf("\t%lu upcall%s made to mrouted\n",
 	    mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
 	printf("\t%lu datagram%s with malformed tunnel options\n",
 	    mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
 	printf("\t%lu datagram%s with no room for tunnel options\n",
 	    mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
 	printf("\t%lu datagram%s arrived on wrong interface\n",
 	    mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
 	printf("\t%lu datagram%s dropped due to upcall Q overflow\n",
 	    mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
 	printf("\t%lu datagram%s dropped due to upcall socket overflow\n",
 	    mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
 	printf("\t%lu datagram%s cleaned up by the cache\n",
 	    mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
 	printf("\t%lu datagram%s dropped selectively by ratelimiter\n",
 	    mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
 	printf("\t%lu datagram%s dropped - bucket Q overflow\n",
 	    mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
 	printf("\t%lu datagram%s dropped - larger than bkt size\n",
 	    mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
+}