#include <machine/rtems-bsd-user-space.h>
#ifdef __rtems__
#include "rtems-bsd-netstat-namespace.h"
#endif /* __rtems__ */
/*-
* 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
*/
#ifdef __rtems__
#include <machine/rtems-bsd-program.h>
#endif /* __rtems__ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Print multicast routing structures and statistics.
*
* MROUTING 1.0
*/
#include <rtems/bsd/sys/param.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sysctl.h>
#include <sys/protosw.h>
#include <sys/mbuf.h>
#include <sys/time.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/igmp.h>
#include <net/route.h>
#define _KERNEL 1
#include <netinet/ip_mroute.h>
#undef _KERNEL
#include <err.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <libxo/xo.h>
#include "netstat.h"
#include "nl_defs.h"
#ifdef __rtems__
#include "rtems-bsd-netstat-mroute-data.h"
#endif /* __rtems__ */
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 {
#ifndef __rtems__
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);
#else /* __rtems__ */
warnx("mroutepr: not implemented");
return;
#endif /* __rtems__ */
}
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;
#ifndef __rtems__
if (mstaddr == 0) {
fprintf(stderr, "No IPv4 MROUTING kernel support.\n");
return;
}
#endif /* __rtems__ */
if (fetch_stats("net.inet.ip.mrtstat", mstaddr, &mrtstat,
sizeof(mrtstat), kread_counters) != 0)
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
}
