diff options
Diffstat (limited to 'usr.bin/netstat/mroute.c')
| -rw-r--r-- | usr.bin/netstat/mroute.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/usr.bin/netstat/mroute.c b/usr.bin/netstat/mroute.c new file mode 100644 index 000000000000..33a5d00f9f0f --- /dev/null +++ b/usr.bin/netstat/mroute.c @@ -0,0 +1,211 @@ +/* + * 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 <sys/socketvar.h> +#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)); +} |