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Don't use ip_mrtproto to determine whether multicast routing is in

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the kernel; this was left over from the earlier protocol-dependent
 kernel multicast routing code.

Learn how to handle the malloc'd multicast routing table (instead of
 expecting it to be in mbufs)
This commit is contained in:
Bill Fenner 1999-01-18 02:09:15 +00:00
parent 01b7c0826f
commit 67a451cc89
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=42778
3 changed files with 32 additions and 83 deletions
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26
usr.bin/netstat/main.c
View File

@ -42,7 +42,7 @@ char const copyright[] =
static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 3/1/94";
#endif
static const char rcsid[] =
"$Id: main.c,v 1.21 1998/08/05 13:54:07 phk Exp $";
"$Id: main.c,v 1.22 1998/08/08 08:13:04 phk Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -105,23 +105,21 @@ static struct nlist nl[] = {
{ "_nfile" },
#define N_FILE 18
{ "_file" },
#define N_MRTPROTO 19
{ "_ip_mrtproto" },
#define N_MRTSTAT 20
#define N_MRTSTAT 19
{ "_mrtstat" },
#define N_MFCTABLE 21
#define N_MFCTABLE 20
{ "_mfctable" },
#define N_VIFTABLE 22
#define N_VIFTABLE 21
{ "_viftable" },
#define N_IPX 23
#define N_IPX 22
{ "_ipxpcb"},
#define N_IPXSTAT 24
#define N_IPXSTAT 23
{ "_ipxstat"},
#define N_SPXSTAT 25
#define N_SPXSTAT 24
{ "_spx_istat"},
#define N_DDPSTAT 26
#define N_DDPSTAT 25
{ "_ddpstat"},
#define N_DDPCB 27
#define N_DDPCB 26
{ "_ddpcb"},
{ "" },
};
@ -390,11 +388,9 @@ main(argc, argv)
if (gflag) {
kread(0, 0, 0);
if (sflag)
mrt_stats(nl[N_MRTPROTO].n_value,
nl[N_MRTSTAT].n_value);
mrt_stats(nl[N_MRTSTAT].n_value);
else
mroutepr(nl[N_MRTPROTO].n_value,
nl[N_MFCTABLE].n_value,
mroutepr(nl[N_MFCTABLE].n_value,
nl[N_VIFTABLE].n_value);
exit(0);
}

85
usr.bin/netstat/mroute.c
View File

@ -62,14 +62,13 @@
#include "netstat.h"
void
mroutepr(mrpaddr, mfcaddr, vifaddr)
u_long mrpaddr, mfcaddr, vifaddr;
mroutepr(mfcaddr, vifaddr)
u_long mfcaddr, vifaddr;
{
u_int mrtproto;
struct mbuf *mfctable[MFCTBLSIZ];
struct mfc *mfctable[MFCTBLSIZ];
struct vif viftable[MAXVIFS];
struct mbuf mb, *m;
struct mfc smfc;
struct mfc mfc, *m;
register struct vif *v;
register vifi_t vifi;
register int i;
@ -77,32 +76,8 @@ mroutepr(mrpaddr, mfcaddr, vifaddr)
register int saved_nflag;
vifi_t maxvif = 0;
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 (mfcaddr == 0) {
printf("mfctable: symbol not in namelist\n");
return;
}
if (vifaddr == 0) {
printf("viftable: symbol not in namelist\n");
if (mfcaddr == 0 || vifaddr == 0) {
printf("No multicast routing compiled into this system.\n");
return;
}
@ -124,7 +99,8 @@ mroutepr(mrpaddr, mfcaddr, vifaddr)
}
printf(" %2u %6u %4d %-15.15s",
vifi, v->v_threshold, v->v_rate_limit,
/* 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) : "");
@ -139,8 +115,7 @@ mroutepr(mrpaddr, mfcaddr, vifaddr)
for (i = 0; i < MFCTBLSIZ; ++i) {
m = mfctable[i];
while(m) {
kread((u_long)m, (char *)&mb, sizeof mb);
m = &mb;
kread((u_long)m, (char *)&mfc, sizeof mfc);
if (!banner_printed) {
printf("\nMulticast Forwarding Cache\n"
@ -149,19 +124,17 @@ mroutepr(mrpaddr, mfcaddr, vifaddr)
banner_printed = 1;
}
kread((u_long)mtod(m, char *),
(char *)&smfc, sizeof smfc);
printf(" %-15.15s", routename(smfc.mfc_origin.s_addr));
printf(" %-15.15s", routename(smfc.mfc_mcastgrp.s_addr));
printf(" %9lu", smfc.mfc_pkt_cnt);
printf(" %3d ", smfc.mfc_parent);
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 (smfc.mfc_ttls[vifi] > 0)
if (mfc.mfc_ttls[vifi] > 0)
printf(" %u:%u", vifi,
smfc.mfc_ttls[vifi]);
mfc.mfc_ttls[vifi]);
}
printf("\n");
m = m->m_act;
m = mfc.mfc_next;
}
}
if (!banner_printed)
@ -173,33 +146,13 @@ mroutepr(mrpaddr, mfcaddr, vifaddr)
void
mrt_stats(mrpaddr, mstaddr)
u_long mrpaddr, mstaddr;
mrt_stats(mstaddr)
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");
printf("No multicast routing compiled into this system.\n");
return;
}

4
usr.bin/netstat/netstat.h
View File

@ -117,6 +117,6 @@ void tp_protopr __P((u_long, char *));
void tp_inproto __P((u_long));
void tp_stats __P((caddr_t, caddr_t));
void mroutepr __P((u_long, u_long, u_long));
void mrt_stats __P((u_long, u_long));
void mroutepr __P((u_long, u_long));
void mrt_stats __P((u_long));