+/*
+ * Print DVMRP multicast routing structures and statistics.
+ *
+ * MROUTING 1.0
+ */
+
+#include <stdio.h>
+#include <sys/param.h>
+#include <sys/mbuf.h>
+#include <netinet/in.h>
+#include <netinet/igmp.h>
+#define KERNEL 1
+#include <netinet/ip_mroute.h>
+#undef KERNEL
+
+extern int kmem;
+extern int nflag;
+extern char *routename();
+extern char *netname();
+extern char *plural();
+
+char *plurales(n)
+ int n;
+{
+ return (n == 1? "" : "es");
+}
+
+mroutepr(mrpaddr, mrtaddr, vifaddr)
+ off_t mrpaddr, mrtaddr, vifaddr;
+{
+ u_int mrtproto;
+#if BSD >= 199006
+ struct mrt *mrttable[MRTHASHSIZ];
+ struct mrt *mp;
+ struct mrt mb;
+ struct mrt *mrt = &mb;
+#else
+ struct mbuf *mrttable[MRTHASHSIZ];
+ struct mbuf *mp;
+ struct mbuf mb;
+ struct mrt *mrt = mtod(&mb, struct mrt *);
+#endif
+ struct vif viftable[MAXVIFS];
+ register struct vif *v;
+ register vifi_t vifi;
+ struct in_addr *grp;
+ int i, n;
+ int banner_printed;
+ int saved_nflag;
+
+ if(mrpaddr == 0) {
+ printf("ip_mrtproto: symbol not in namelist\n");
+ return;
+ }
+
+ kvm_read(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 (mrtaddr == 0) {
+ printf("mrttable: symbol not in namelist\n");
+ return;
+ }
+ if (vifaddr == 0) {
+ printf("viftable: symbol not in namelist\n");
+ return;
+ }
+
+ saved_nflag = nflag;
+ nflag = 1;
+
+ kvm_read(vifaddr, (char *)viftable, sizeof(viftable));
+ banner_printed = 0;
+ for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
+ struct in_addr v_lcl_grps[1024];
+
+ if (v->v_lcl_addr.s_addr == 0) continue;
+
+ if (!banner_printed) {
+ printf("\nVirtual Interface Table\n%s%s",
+ " Vif Threshold Local-Address ",
+ "Remote-Address Groups\n");
+ banner_printed = 1;
+ }
+
+ printf(" %2u %3u %-15.15s",
+ vifi, v->v_threshold, routename(v->v_lcl_addr));
+ printf(" %-15.15s\n",
+ (v->v_flags & VIFF_TUNNEL) ?
+ routename(v->v_rmt_addr) : "");
+
+ n = v->v_lcl_grps_n;
+ if (n == 0)
+ continue;
+ if (n < 0 || n > 1024)
+ printf("[v_lcl_grps_n = %d!]\n", n);
+
+ kvm_read(v->v_lcl_grps, (char *)v_lcl_grps,
+ n * sizeof(struct in_addr));
+ for (i = 0; i < n; ++i)
+ printf("%51s %-15.15s\n", "",
+ routename(v_lcl_grps[i]));
+ }
+ if (!banner_printed) printf("\nVirtual Interface Table is empty\n");
+
+ kvm_read(mrtaddr, (char *)mrttable, sizeof(mrttable));
+ banner_printed = 0;
+ for (i = 0; i < MRTHASHSIZ; ++i) {
+ for (mp = mrttable[i]; mp != NULL;
+#if BSD >= 199006
+ mp = mb.mrt_next
+#else
+ mp = mb.m_next
+#endif
+ ) {
+
+ if (!banner_printed) {
+ printf("\nMulticast Routing Table\n%s",
+ " Hash Origin-Subnet In-Vif Out-Vifs\n");
+ banner_printed = 1;
+ }
+ kvm_read(mp, (char *)&mb, sizeof(mb));
+
+
+ printf(" %3u %-15.15s %2u ",
+ i,
+ netname(mrt->mrt_origin.s_addr,
+ ntohl(mrt->mrt_originmask.s_addr)),
+ mrt->mrt_parent);
+ for (vifi = 0; vifi < MAXVIFS; ++vifi) {
+ if (viftable[vifi].v_lcl_addr.s_addr) {
+ if (VIFM_ISSET(vifi, mrt->mrt_children)) {
+ printf(" %u%c",
+ vifi,
+ VIFM_ISSET(vifi,
+ mrt->mrt_leaves) ?
+ '*' : ' ');
+ } else
+ printf(" ");
+ }
+ }
+ printf("\n");
+ }
+ }
+ if (!banner_printed) printf("\nMulticast Routing Table is empty\n");
+
+ printf("\n");
+ nflag = saved_nflag;
+}
+
+
+mrt_stats(mrpaddr, mstaddr)
+ off_t mrpaddr, mstaddr;
+{
+ u_int mrtproto;
+ struct mrtstat mrtstat;
+
+ if(mrpaddr == 0) {
+ printf("ip_mrtproto: symbol not in namelist\n");
+ return;
+ }
+
+ kvm_read(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;
+ }
+
+ kvm_read(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
+ printf("multicast routing:\n");
+ printf(" %10u multicast route lookup%s\n",
+ mrtstat.mrts_mrt_lookups, plural(mrtstat.mrts_mrt_lookups));
+ printf(" %10u multicast route cache miss%s\n",
+ mrtstat.mrts_mrt_misses, plurales(mrtstat.mrts_mrt_misses));
+ printf(" %10u group address lookup%s\n",
+ mrtstat.mrts_grp_lookups, plural(mrtstat.mrts_grp_lookups));
+ printf(" %10u group address cache miss%s\n",
+ mrtstat.mrts_grp_misses, plurales(mrtstat.mrts_grp_misses));
+ printf(" %10u datagram%s with no route for origin\n",
+ mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
+ printf(" %10u datagram%s with malformed tunnel options\n",
+ mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
+ printf(" %10u datagram%s with no room for tunnel options\n",
+ mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
+ printf(" %10u datagram%s arrived on wrong interface\n",
+ mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
+}
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