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freebsd-dev/usr.bin/netstat/inet.c
Xin LI f193c8ce0d Use strlcpy and snprintf in netstat(1). 
Expand inet6name() line buffer to NI_MAXHOST and use strlcpy/snprintf
in various places.

Reported by:	Anton Yuzhaninov <citrin citrin ru>
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D8916
2017-01-05 09:23:54 +00:00

1495 lines
47 KiB
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/*-
* Copyright (c) 1983, 1988, 1993, 1995
* The Regents of the University of California. All rights reserved.
*
* 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.
* 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sysctl.h>
#include <net/route.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_carp.h>
#ifdef INET6
#include <netinet/ip6.h>
#endif /* INET6 */
#include <netinet/in_pcb.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/igmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/pim_var.h>
#include <netinet/tcp.h>
#include <netinet/tcpip.h>
#include <netinet/tcp_seq.h>
#define TCPSTATES
#include <netinet/tcp_fsm.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <arpa/inet.h>
#include <err.h>
#include <errno.h>
#include <libutil.h>
#include <netdb.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <libxo/xo.h>
#include "netstat.h"
#include "nl_defs.h"
void inetprint(const char *, struct in_addr *, int, const char *, int,
const int);
#ifdef INET6
static int udp_done, tcp_done, sdp_done;
#endif /* INET6 */
static int
pcblist_sysctl(int proto, const char *name, char **bufp, int istcp __unused)
{
const char *mibvar;
char *buf;
size_t len;
switch (proto) {
case IPPROTO_TCP:
mibvar = "net.inet.tcp.pcblist";
break;
case IPPROTO_UDP:
mibvar = "net.inet.udp.pcblist";
break;
case IPPROTO_DIVERT:
mibvar = "net.inet.divert.pcblist";
break;
default:
mibvar = "net.inet.raw.pcblist";
break;
}
if (strncmp(name, "sdp", 3) == 0)
mibvar = "net.inet.sdp.pcblist";
len = 0;
if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
if (errno != ENOENT)
xo_warn("sysctl: %s", mibvar);
return (0);
}
if ((buf = malloc(len)) == NULL) {
xo_warnx("malloc %lu bytes", (u_long)len);
return (0);
}
if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
xo_warn("sysctl: %s", mibvar);
free(buf);
return (0);
}
*bufp = buf;
return (1);
}
/*
* Copied directly from uipc_socket2.c. We leave out some fields that are in
* nested structures that aren't used to avoid extra work.
*/
static void
sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
{
xsb->sb_cc = sb->sb_ccc;
xsb->sb_hiwat = sb->sb_hiwat;
xsb->sb_mbcnt = sb->sb_mbcnt;
xsb->sb_mcnt = sb->sb_mcnt;
xsb->sb_ccnt = sb->sb_ccnt;
xsb->sb_mbmax = sb->sb_mbmax;
xsb->sb_lowat = sb->sb_lowat;
xsb->sb_flags = sb->sb_flags;
xsb->sb_timeo = sb->sb_timeo;
}
int
sotoxsocket(struct socket *so, struct xsocket *xso)
{
struct protosw proto;
struct domain domain;
bzero(xso, sizeof *xso);
xso->xso_len = sizeof *xso;
xso->xso_so = so;
xso->so_type = so->so_type;
xso->so_options = so->so_options;
xso->so_linger = so->so_linger;
xso->so_state = so->so_state;
xso->so_pcb = so->so_pcb;
if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
return (-1);
xso->xso_protocol = proto.pr_protocol;
if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
return (-1);
xso->xso_family = domain.dom_family;
xso->so_qlen = so->so_qlen;
xso->so_incqlen = so->so_incqlen;
xso->so_qlimit = so->so_qlimit;
xso->so_timeo = so->so_timeo;
xso->so_error = so->so_error;
xso->so_oobmark = so->so_oobmark;
sbtoxsockbuf(&so->so_snd, &xso->so_snd);
sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
return (0);
}
static int
pcblist_kvm(u_long off, char **bufp, int istcp)
{
struct inpcbinfo pcbinfo;
struct inpcbhead listhead;
struct inpcb *inp;
struct xinpcb xi;
struct xinpgen xig;
struct xtcpcb xt;
struct socket so;
struct xsocket *xso;
char *buf, *p;
size_t len;
if (off == 0)
return (0);
kread(off, &pcbinfo, sizeof(pcbinfo));
if (istcp)
len = 2 * sizeof(xig) +
(pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
sizeof(struct xtcpcb);
else
len = 2 * sizeof(xig) +
(pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
sizeof(struct xinpcb);
if ((buf = malloc(len)) == NULL) {
xo_warnx("malloc %lu bytes", (u_long)len);
return (0);
}
p = buf;
#define COPYOUT(obj, size) do { \
if (len < (size)) { \
xo_warnx("buffer size exceeded"); \
goto fail; \
} \
bcopy((obj), p, (size)); \
len -= (size); \
p += (size); \
} while (0)
#define KREAD(off, buf, len) do { \
if (kread((uintptr_t)(off), (buf), (len)) != 0) \
goto fail; \
} while (0)
/* Write out header. */
xig.xig_len = sizeof xig;
xig.xig_count = pcbinfo.ipi_count;
xig.xig_gen = pcbinfo.ipi_gencnt;
xig.xig_sogen = 0;
COPYOUT(&xig, sizeof xig);
/* Walk the PCB list. */
xt.xt_len = sizeof xt;
xi.xi_len = sizeof xi;
if (istcp)
xso = &xt.xt_socket;
else
xso = &xi.xi_socket;
KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead));
LIST_FOREACH(inp, &listhead, inp_list) {
if (istcp) {
KREAD(inp, &xt.xt_inp, sizeof(*inp));
inp = &xt.xt_inp;
} else {
KREAD(inp, &xi.xi_inp, sizeof(*inp));
inp = &xi.xi_inp;
}
if (inp->inp_gencnt > pcbinfo.ipi_gencnt)
continue;
if (istcp) {
if (inp->inp_ppcb == NULL)
bzero(&xt.xt_tp, sizeof xt.xt_tp);
else if (inp->inp_flags & INP_TIMEWAIT) {
bzero(&xt.xt_tp, sizeof xt.xt_tp);
xt.xt_tp.t_state = TCPS_TIME_WAIT;
} else
KREAD(inp->inp_ppcb, &xt.xt_tp,
sizeof xt.xt_tp);
}
if (inp->inp_socket) {
KREAD(inp->inp_socket, &so, sizeof(so));
if (sotoxsocket(&so, xso) != 0)
goto fail;
} else {
bzero(xso, sizeof(*xso));
if (istcp)
xso->xso_protocol = IPPROTO_TCP;
}
if (istcp)
COPYOUT(&xt, sizeof xt);
else
COPYOUT(&xi, sizeof xi);
}
/* Reread the pcbinfo and write out the footer. */
kread(off, &pcbinfo, sizeof(pcbinfo));
xig.xig_count = pcbinfo.ipi_count;
xig.xig_gen = pcbinfo.ipi_gencnt;
COPYOUT(&xig, sizeof xig);
*bufp = buf;
return (1);
fail:
free(buf);
return (0);
#undef COPYOUT
#undef KREAD
}
/*
* Print a summary of connections related to an Internet
* protocol. For TCP, also give state of connection.
* Listening processes (aflag) are suppressed unless the
* -a (all) flag is specified.
*/
void
protopr(u_long off, const char *name, int af1, int proto)
{
int istcp;
static int first = 1;
char *buf;
const char *vchar;
struct tcpcb *tp = NULL;
struct inpcb *inp;
struct xinpgen *xig, *oxig;
struct xsocket *so;
struct xtcp_timer *timer;
istcp = 0;
switch (proto) {
case IPPROTO_TCP:
#ifdef INET6
if (strncmp(name, "sdp", 3) != 0) {
if (tcp_done != 0)
return;
else
tcp_done = 1;
} else {
if (sdp_done != 0)
return;
else
sdp_done = 1;
}
#endif
istcp = 1;
break;
case IPPROTO_UDP:
#ifdef INET6
if (udp_done != 0)
return;
else
udp_done = 1;
#endif
break;
}
if (live) {
if (!pcblist_sysctl(proto, name, &buf, istcp))
return;
} else {
if (!pcblist_kvm(off, &buf, istcp))
return;
}
oxig = xig = (struct xinpgen *)buf;
for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
xig->xig_len > sizeof(struct xinpgen);
xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
if (istcp) {
timer = &((struct xtcpcb *)xig)->xt_timer;
tp = &((struct xtcpcb *)xig)->xt_tp;
inp = &((struct xtcpcb *)xig)->xt_inp;
so = &((struct xtcpcb *)xig)->xt_socket;
} else {
inp = &((struct xinpcb *)xig)->xi_inp;
so = &((struct xinpcb *)xig)->xi_socket;
timer = NULL;
}
/* Ignore sockets for protocols other than the desired one. */
if (so->xso_protocol != proto)
continue;
/* Ignore PCBs which were freed during copyout. */
if (inp->inp_gencnt > oxig->xig_gen)
continue;
if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
#ifdef INET6
|| (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
#endif /* INET6 */
|| (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
#ifdef INET6
&& (inp->inp_vflag & INP_IPV6) == 0
#endif /* INET6 */
))
)
continue;
if (!aflag &&
(
(istcp && tp->t_state == TCPS_LISTEN)
|| (af1 == AF_INET &&
inet_lnaof(inp->inp_laddr) == INADDR_ANY)
#ifdef INET6
|| (af1 == AF_INET6 &&
IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
#endif /* INET6 */
|| (af1 == AF_UNSPEC &&
(((inp->inp_vflag & INP_IPV4) != 0 &&
inet_lnaof(inp->inp_laddr) == INADDR_ANY)
#ifdef INET6
|| ((inp->inp_vflag & INP_IPV6) != 0 &&
IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
#endif
))
))
continue;
if (first) {
if (!Lflag) {
xo_emit("Active Internet connections");
if (aflag)
xo_emit(" (including servers)");
} else
xo_emit(
"Current listen queue sizes (qlen/incqlen/maxqlen)");
xo_emit("\n");
if (Aflag)
xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
"Tcpcb");
if (Lflag)
xo_emit((Aflag && !Wflag) ?
"{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
((!Wflag || af1 == AF_INET) ?
"{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
"{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
"Proto", "Listen", "Local Address");
else if (Tflag)
xo_emit((Aflag && !Wflag) ?
"{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
((!Wflag || af1 == AF_INET) ?
"{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
"{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
"Proto", "Rexmit", "OOORcv", "0-win",
"Local Address", "Foreign Address");
else {
xo_emit((Aflag && !Wflag) ?
"{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
((!Wflag || af1 == AF_INET) ?
"{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
"{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
"Proto", "Recv-Q", "Send-Q",
"Local Address", "Foreign Address");
if (!xflag && !Rflag)
xo_emit(" (state)");
}
if (xflag) {
xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
"{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
"{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
"{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
"R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
"R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
"R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
"{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
"rexmt", "persist", "keep", "2msl",
"delack", "rcvtime");
} else if (Rflag) {
xo_emit(" {T:/%8.8s} {T:/%5.5s}",
"flowid", "ftype");
}
xo_emit("\n");
first = 0;
}
if (Lflag && so->so_qlimit == 0)
continue;
xo_open_instance("socket");
if (Aflag) {
if (istcp)
xo_emit("{q:address/%*lx} ",
2 * (int)sizeof(void *),
(u_long)inp->inp_ppcb);
else
xo_emit("{q:adddress/%*lx} ",
2 * (int)sizeof(void *),
(u_long)so->so_pcb);
}
#ifdef INET6
if ((inp->inp_vflag & INP_IPV6) != 0)
vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
"46" : "6";
else
#endif
vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
"4" : "";
if (istcp && (tp->t_flags & TF_TOE) != 0)
xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
else
xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
if (Lflag) {
char buf1[33];
snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
so->so_incqlen, so->so_qlimit);
xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
} else if (Tflag) {
if (istcp)
xo_emit("{:sent-retransmit-packets/%6u} "
"{:received-out-of-order-packets/%6u} "
"{:sent-zero-window/%6u} ",
tp->t_sndrexmitpack, tp->t_rcvoopack,
tp->t_sndzerowin);
else
xo_emit("{P:/%21s}", "");
} else {
xo_emit("{:receive-bytes-waiting/%6u} "
"{:send-bytes-waiting/%6u} ",
so->so_rcv.sb_cc, so->so_snd.sb_cc);
}
if (numeric_port) {
if (inp->inp_vflag & INP_IPV4) {
inetprint("local", &inp->inp_laddr,
(int)inp->inp_lport, name, 1, af1);
if (!Lflag)
inetprint("remote", &inp->inp_faddr,
(int)inp->inp_fport, name, 1, af1);
}
#ifdef INET6
else if (inp->inp_vflag & INP_IPV6) {
inet6print("local", &inp->in6p_laddr,
(int)inp->inp_lport, name, 1);
if (!Lflag)
inet6print("remote", &inp->in6p_faddr,
(int)inp->inp_fport, name, 1);
} /* else nothing printed now */
#endif /* INET6 */
} else if (inp->inp_flags & INP_ANONPORT) {
if (inp->inp_vflag & INP_IPV4) {
inetprint("local", &inp->inp_laddr,
(int)inp->inp_lport, name, 1, af1);
if (!Lflag)
inetprint("remote", &inp->inp_faddr,
(int)inp->inp_fport, name, 0, af1);
}
#ifdef INET6
else if (inp->inp_vflag & INP_IPV6) {
inet6print("local", &inp->in6p_laddr,
(int)inp->inp_lport, name, 1);
if (!Lflag)
inet6print("remote", &inp->in6p_faddr,
(int)inp->inp_fport, name, 0);
} /* else nothing printed now */
#endif /* INET6 */
} else {
if (inp->inp_vflag & INP_IPV4) {
inetprint("local", &inp->inp_laddr,
(int)inp->inp_lport, name, 0, af1);
if (!Lflag)
inetprint("remote", &inp->inp_faddr,
(int)inp->inp_fport, name,
inp->inp_lport != inp->inp_fport,
af1);
}
#ifdef INET6
else if (inp->inp_vflag & INP_IPV6) {
inet6print("local", &inp->in6p_laddr,
(int)inp->inp_lport, name, 0);
if (!Lflag)
inet6print("remote", &inp->in6p_faddr,
(int)inp->inp_fport, name,
inp->inp_lport != inp->inp_fport);
} /* else nothing printed now */
#endif /* INET6 */
}
if (xflag) {
xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
"{:receive-clusters/%6u} {:send-clusters/%6u} "
"{:receive-high-water/%6u} {:send-high-water/%6u} "
"{:receive-low-water/%6u} {:send-low-water/%6u} "
"{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
"{:receive-mbuf-bytes-max/%6u} "
"{:send-mbuf-bytes-max/%6u}",
so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
if (timer != NULL)
xo_emit(" {:retransmit-timer/%4d.%02d} "
"{:persist-timer/%4d.%02d} "
"{:keepalive-timer/%4d.%02d} "
"{:msl2-timer/%4d.%02d} "
"{:delay-ack-timer/%4d.%02d} "
"{:inactivity-timer/%4d.%02d}",
timer->tt_rexmt / 1000,
(timer->tt_rexmt % 1000) / 10,
timer->tt_persist / 1000,
(timer->tt_persist % 1000) / 10,
timer->tt_keep / 1000,
(timer->tt_keep % 1000) / 10,
timer->tt_2msl / 1000,
(timer->tt_2msl % 1000) / 10,
timer->tt_delack / 1000,
(timer->tt_delack % 1000) / 10,
timer->t_rcvtime / 1000,
(timer->t_rcvtime % 1000) / 10);
}
if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
xo_emit("{:tcp-state/%d}", tp->t_state);
else {
xo_emit("{:tcp-state/%s}",
tcpstates[tp->t_state]);
#if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
/* Show T/TCP `hidden state' */
if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
xo_emit("{:need-syn-or-fin/*}");
#endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
}
}
if (Rflag) {
/* XXX: is this right Alfred */
xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
inp->inp_flowid,
inp->inp_flowtype);
}
xo_emit("\n");
xo_close_instance("socket");
}
if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
if (oxig->xig_count > xig->xig_count) {
xo_emit("Some {d:lost/%s} sockets may have been "
"deleted.\n", name);
} else if (oxig->xig_count < xig->xig_count) {
xo_emit("Some {d:created/%s} sockets may have been "
"created.\n", name);
} else {
xo_emit("Some {d:changed/%s} sockets may have been "
"created or deleted.\n", name);
}
}
free(buf);
}
/*
* Dump TCP statistics structure.
*/
void
tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct tcpstat tcpstat;
uint64_t tcps_states[TCP_NSTATES];
#ifdef INET6
if (tcp_done != 0)
return;
else
tcp_done = 1;
#endif
if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
sizeof(tcpstat), kread_counters) != 0)
return;
if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
&tcps_states, sizeof(tcps_states), kread_counters) != 0)
return;
xo_open_container("tcp");
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (tcpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
#define p1a(f, m) if (tcpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t )tcpstat.f)
#define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
(uintmax_t )tcpstat.f2, plural(tcpstat.f2))
#define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
(uintmax_t )tcpstat.f2)
#define p3(f, m) if (tcpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
"{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
"{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
"({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
"{N:retransmitted}\n");
p(tcps_sndrexmitbad, "\t\t"
"{:sent-unnecessary-retransmitted-packets/%ju} "
"{N:/data packet%s unnecessarily retransmitted}\n");
p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
"{N:/resend%s initiated by MTU discovery}\n");
p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
"{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
"{N:delayed})\n");
p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
"{N:/URG only packet%s}\n");
p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
"{N:/window probe packet%s}\n");
p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
"{N:/window update packet%s}\n");
p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
"{N:/control packet%s}\n");
p(tcps_rcvtotal, "\t{:received-packets/%ju} "
"{N:/packet%s received}\n");
p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
"{:received-ack-packets/%ju} {N:/ack%s} "
"{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
"{N:/duplicate ack%s}\n");
p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
"{N:/ack%s for unsent data}\n");
p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
"{:received-in-sequence-packets/%ju} {N:/packet%s} "
"({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
"{N:received in-sequence}\n");
p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
"{:received-completely-duplicate-packets/%ju} "
"{N:/completely duplicate packet%s} "
"({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
"{N:/old duplicate packet%s}\n");
p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
"{:received-some-duplicate-packets/%ju} "
"{N:/packet%s with some dup. data} "
"({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
"{N:/out-of-order packet%s} "
"({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
"{:received-after-window-packets/%ju} {N:/packet%s} "
"({:received-after-window-bytes/%ju} {N:/byte%s}) "
"{N:of data after window}\n");
p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
"{N:/window probe%s}\n");
p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
"{N:/window update packet%s}\n");
p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
"{N:/packet%s received after close}\n");
p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
"{N:/discarded for bad checksum%s}\n");
p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
"{N:/discarded for bad header offset field%s}\n");
p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
"{N:discarded because packet too short}\n");
p1a(tcps_rcvmemdrop, "\t\t{:discard-memory-problems/%ju} "
"{N:discarded due to memory problems}\n");
p(tcps_connattempt, "\t{:connection-requests/%ju} "
"{N:/connection request%s}\n");
p(tcps_accepts, "\t{:connections-accepts/%ju} "
"{N:/connection accept%s}\n");
p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
"{N:/bad connection attempt%s}\n");
p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
"{N:/listen queue overflow%s}\n");
p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
"{N:/ignored RSTs in the window%s}\n");
p(tcps_connects, "\t{:connections-established/%ju} "
"{N:/connection%s established (including accepts)}\n");
p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
"{N:/time%s used RTT from hostcache}\n");
p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
"{N:/time%s used RTT variance from hostcache}\n");
p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
"{N:/time%s used slow-start threshold from hostcache}\n");
p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
"{N:/connection%s closed (including} "
"{:connection-drops/%ju} {N:/drop%s})\n");
p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
"{N:/connection%s updated cached RTT on close}\n");
p(tcps_cachedrttvar, "\t\t"
"{:connections-updated-variance-on-close/%ju} "
"{N:/connection%s updated cached RTT variance on close}\n");
p(tcps_cachedssthresh, "\t\t"
"{:connections-updated-ssthresh-on-close/%ju} "
"{N:/connection%s updated cached ssthresh on close}\n");
p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
"{N:/embryonic connection%s dropped}\n");
p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
"{N:/segment%s updated rtt (of} "
"{:segment-update-attempts/%ju} {N:/attempt%s})\n");
p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
"{N:/retransmit timeout%s}\n");
p(tcps_timeoutdrop, "\t\t"
"{:connections-dropped-by-retransmit-timeout/%ju} "
"{N:/connection%s dropped by rexmit timeout}\n");
p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
"{N:/persist timeout%s}\n");
p(tcps_persistdrop, "\t\t"
"{:connections-dropped-by-persist-timeout/%ju} "
"{N:/connection%s dropped by persist timeout}\n");
p(tcps_finwait2_drops, "\t"
"{:connections-dropped-by-finwait2-timeout/%ju} "
"{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
"{N:/keepalive timeout%s}\n");
p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
"{N:/keepalive probe%s sent}\n");
p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
"{N:/connection%s dropped by keepalive}\n");
p(tcps_predack, "\t{:ack-header-predictions/%ju} "
"{N:/correct ACK header prediction%s}\n");
p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
"{N:/correct data packet header prediction%s}\n");
xo_open_container("syncache");
p3(tcps_sc_added, "\t{:entries-added/%ju} "
"{N:/syncache entr%s added}\n");
p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
"{N:/retransmitted}\n");
p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
"{N:/bucket overflow}\n");
p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
"{N:/cache overflow}\n");
p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
"{N:/cookie%s received}\n");
xo_close_container("syncache");
xo_open_container("hostcache");
p3(tcps_hc_added, "\t{:entries-added/%ju} "
"{N:/hostcache entr%s added}\n");
p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
"{N:/bucket overflow}\n");
xo_close_container("hostcache");
xo_open_container("sack");
p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
"{N:/SACK recovery episode%s}\n");
p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
"{N:/segment rexmit%s in SACK recovery episodes}\n");
p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
"{N:/byte rexmit%s in SACK recovery episodes}\n");
p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
"{N:/SACK option%s (SACK blocks) received}\n");
p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
"{N:/SACK option%s (SACK blocks) sent}\n");
p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
"{N:/SACK scoreboard overflow}\n");
xo_close_container("sack");
xo_open_container("ecn");
p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
"{N:/packet%s with ECN CE bit set}\n");
p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
"{N:/packet%s with ECN ECT(0) bit set}\n");
p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
"{N:/packet%s with ECN ECT(1) bit set}\n");
p(tcps_ecn_shs, "\t{:handshakes/%ju} "
"{N:/successful ECN handshake%s}\n");
p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
"{N:/time%s ECN reduced the congestion window}\n");
#undef p
#undef p1a
#undef p2
#undef p2a
#undef p3
xo_close_container("ecn");
xo_open_container("TCP connection count by state");
xo_emit("{T:/TCP connection count by state}:\n");
for (int i = 0; i < TCP_NSTATES; i++) {
/*
* XXXGL: is there a way in libxo to use %s
* in the "content string" of a format
* string? I failed to do that, that's why
* a temporary buffer is used to construct
* format string for xo_emit().
*/
char fmtbuf[80];
if (sflag > 1 && tcps_states[i] == 0)
continue;
snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
"{Np:/connection ,connections} in %s state\n",
tcpstates[i], tcpstates[i]);
xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
}
xo_close_container("TCP connection count by state");
xo_close_container("tcp");
}
/*
* Dump UDP statistics structure.
*/
void
udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct udpstat udpstat;
uint64_t delivered;
#ifdef INET6
if (udp_done != 0)
return;
else
udp_done = 1;
#endif
if (fetch_stats("net.inet.udp.stats", off, &udpstat,
sizeof(udpstat), kread_counters) != 0)
return;
xo_open_container("udp");
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (udpstat.f || sflag <= 1) \
xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
#define p1a(f, m) if (udpstat.f || sflag <= 1) \
xo_emit("\t" m, (uintmax_t)udpstat.f)
p(udps_ipackets, "{:received-datagrams/%ju} "
"{N:/datagram%s received}\n");
p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
"{N:/with incomplete header}\n");
p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
"{N:/with bad data length field}\n");
p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
"{N:/with bad checksum}\n");
p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
"{N:/with no checksum}\n");
p1a(udps_noport, "{:dropped-no-socket/%ju} "
"{N:/dropped due to no socket}\n");
p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
"{N:/broadcast\\/multicast datagram%s undelivered}\n");
p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
"{N:/dropped due to full socket buffers}\n");
p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
"{N:/not for hashed pcb}\n");
delivered = udpstat.udps_ipackets -
udpstat.udps_hdrops -
udpstat.udps_badlen -
udpstat.udps_badsum -
udpstat.udps_noport -
udpstat.udps_noportbcast -
udpstat.udps_fullsock;
if (delivered || sflag <= 1)
xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
(uint64_t)delivered);
p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
/* the next statistic is cumulative in udps_noportbcast */
p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
"{N:/time%s multicast source filter matched}\n");
#undef p
#undef p1a
xo_close_container("udp");
}
/*
* Dump CARP statistics structure.
*/
void
carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct carpstats carpstat;
if (fetch_stats("net.inet.carp.stats", off, &carpstat,
sizeof(carpstat), kread_counters) != 0)
return;
xo_open_container(name);
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (carpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
#define p2(f, m) if (carpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t)carpstat.f)
p(carps_ipackets, "\t{:received-inet-packets/%ju} "
"{N:/packet%s received (IPv4)}\n");
p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
"{N:/packet%s received (IPv6)}\n");
p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
"{N:/packet%s discarded for wrong TTL}\n");
p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
"{N:/packet%s shorter than header}\n");
p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
"{N:/discarded for bad checksum%s}\n");
p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
"{N:/discarded packet%s with a bad version}\n");
p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
"{N:/discarded because packet too short}\n");
p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
"{N:/discarded for bad authentication}\n");
p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
"{N:/discarded for bad vhid}\n");
p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
"{N:/discarded because of a bad address list}\n");
p(carps_opackets, "\t{:sent-inet-packets/%ju} "
"{N:/packet%s sent (IPv4)}\n");
p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
"{N:/packet%s sent (IPv6)}\n");
p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
"{N:/send failed due to mbuf memory error}\n");
#if notyet
p(carps_ostates, "\t\t{:send-state-updates/%s} "
"{N:/state update%s sent}\n");
#endif
#undef p
#undef p2
xo_close_container(name);
}
/*
* Dump IP statistics structure.
*/
void
ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct ipstat ipstat;
if (fetch_stats("net.inet.ip.stats", off, &ipstat,
sizeof(ipstat), kread_counters) != 0)
return;
xo_open_container(name);
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (ipstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
#define p1a(f, m) if (ipstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t )ipstat.f)
p(ips_total, "\t{:received-packets/%ju} "
"{N:/total packet%s received}\n");
p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
"{N:/bad header checksum%s}\n");
p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
"{N:/with size smaller than minimum}\n");
p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
"{N:/with data size < data length}\n");
p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
"{N:/with ip length > max ip packet size}\n");
p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
"{N:/with header length < data size}\n");
p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
"{N:/with data length < header length}\n");
p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
"{N:/with bad options}\n");
p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
"{N:/with incorrect version number}\n");
p(ips_fragments, "\t{:received-fragments/%ju} "
"{N:/fragment%s received}\n");
p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
"{N:/fragment%s dropped (dup or out of space)}\n");
p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
"{N:/fragment%s dropped after timeout}\n");
p(ips_reassembled, "\t{:reassembled-packets/%ju} "
"{N:/packet%s reassembled ok}\n");
p(ips_delivered, "\t{:received-local-packets/%ju} "
"{N:/packet%s for this host}\n");
p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
"{N:/packet%s for unknown\\/unsupported protocol}\n");
p(ips_forward, "\t{:forwarded-packets/%ju} "
"{N:/packet%s forwarded}");
p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
"{N:/packet%s fast forwarded})");
if (ipstat.ips_forward || sflag <= 1)
xo_emit("\n");
p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
"{N:/packet%s not forwardable}\n");
p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
"{N:/packet%s received for unknown multicast group}\n");
p(ips_redirectsent, "\t{:redirects-sent/%ju} "
"{N:/redirect%s sent}\n");
p(ips_localout, "\t{:sent-packets/%ju} "
"{N:/packet%s sent from this host}\n");
p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
"{N:/packet%s sent with fabricated ip header}\n");
p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
"{N:/output packet%s dropped due to no bufs, etc.}\n");
p(ips_noroute, "\t{:discard-no-route/%ju} "
"{N:/output packet%s discarded due to no route}\n");
p(ips_fragmented, "\t{:sent-fragments/%ju} "
"{N:/output datagram%s fragmented}\n");
p(ips_ofragments, "\t{:fragments-created/%ju} "
"{N:/fragment%s created}\n");
p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
"{N:/datagram%s that can't be fragmented}\n");
p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
"{N:/tunneling packet%s that can't find gif}\n");
p(ips_badaddr, "\t{:discard-bad-address/%ju} "
"{N:/datagram%s with bad address in header}\n");
#undef p
#undef p1a
xo_close_container(name);
}
/*
* Dump ARP statistics structure.
*/
void
arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct arpstat arpstat;
if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
sizeof(arpstat), kread_counters) != 0)
return;
xo_open_container(name);
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (arpstat.f || sflag <= 1) \
xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
#define p2(f, m) if (arpstat.f || sflag <= 1) \
xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
p(rxrequests, "{:received-requests/%ju} "
"{N:/ARP request%s received}\n");
p2(rxreplies, "{:received-replies/%ju} "
"{N:/ARP repl%s received}\n");
p(received, "{:received-packers/%ju} "
"{N:/ARP packet%s received}\n");
p(dropped, "{:dropped-no-entry/%ju} "
"{N:/total packet%s dropped due to no ARP entry}\n");
p(timeouts, "{:entries-timeout/%ju} "
"{N:/ARP entry%s timed out}\n");
p(dupips, "{:dropped-duplicate-address/%ju} "
"{N:/Duplicate IP%s seen}\n");
#undef p
#undef p2
xo_close_container(name);
}
static const char *icmpnames[ICMP_MAXTYPE + 1] = {
"echo reply", /* RFC 792 */
"#1",
"#2",
"destination unreachable", /* RFC 792 */
"source quench", /* RFC 792 */
"routing redirect", /* RFC 792 */
"#6",
"#7",
"echo", /* RFC 792 */
"router advertisement", /* RFC 1256 */
"router solicitation", /* RFC 1256 */
"time exceeded", /* RFC 792 */
"parameter problem", /* RFC 792 */
"time stamp", /* RFC 792 */
"time stamp reply", /* RFC 792 */
"information request", /* RFC 792 */
"information request reply", /* RFC 792 */
"address mask request", /* RFC 950 */
"address mask reply", /* RFC 950 */
"#19",
"#20",
"#21",
"#22",
"#23",
"#24",
"#25",
"#26",
"#27",
"#28",
"#29",
"icmp traceroute", /* RFC 1393 */
"datagram conversion error", /* RFC 1475 */
"mobile host redirect",
"IPv6 where-are-you",
"IPv6 i-am-here",
"mobile registration req",
"mobile registration reply",
"domain name request", /* RFC 1788 */
"domain name reply", /* RFC 1788 */
"icmp SKIP",
"icmp photuris", /* RFC 2521 */
};
/*
* Dump ICMP statistics.
*/
void
icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct icmpstat icmpstat;
size_t len;
int i, first;
if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
sizeof(icmpstat), kread_counters) != 0)
return;
xo_open_container(name);
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (icmpstat.f || sflag <= 1) \
xo_emit(m, icmpstat.f, plural(icmpstat.f))
#define p1a(f, m) if (icmpstat.f || sflag <= 1) \
xo_emit(m, icmpstat.f)
#define p2(f, m) if (icmpstat.f || sflag <= 1) \
xo_emit(m, icmpstat.f, plurales(icmpstat.f))
p(icps_error, "\t{:icmp-calls/%lu} "
"{N:/call%s to icmp_error}\n");
p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
"{N:/error%s not generated in response to an icmp message}\n");
for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
if (icmpstat.icps_outhist[i] != 0) {
if (first) {
xo_open_list("output-histogram");
xo_emit("\tOutput histogram:\n");
first = 0;
}
xo_open_instance("output-histogram");
if (icmpnames[i] != NULL)
xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
icmpnames[i], icmpstat.icps_outhist[i]);
else
xo_emit("\t\tunknown ICMP #{k:name/%d}: "
"{:count/%lu}\n",
i, icmpstat.icps_outhist[i]);
xo_close_instance("output-histogram");
}
}
if (!first)
xo_close_list("output-histogram");
p(icps_badcode, "\t{:dropped-bad-code/%lu} "
"{N:/message%s with bad code fields}\n");
p(icps_tooshort, "\t{:dropped-too-short/%lu} "
"{N:/message%s less than the minimum length}\n");
p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
"{N:/message%s with bad checksum}\n");
p(icps_badlen, "\t{:dropped-bad-length/%lu} "
"{N:/message%s with bad length}\n");
p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
"{N:/multicast echo requests ignored}\n");
p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
"{N:/multicast timestamp requests ignored}\n");
for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
if (icmpstat.icps_inhist[i] != 0) {
if (first) {
xo_open_list("input-histogram");
xo_emit("\tInput histogram:\n");
first = 0;
}
xo_open_instance("input-histogram");
if (icmpnames[i] != NULL)
xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
icmpnames[i],
icmpstat.icps_inhist[i]);
else
xo_emit(
"\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
i, icmpstat.icps_inhist[i]);
xo_close_instance("input-histogram");
}
}
if (!first)
xo_close_list("input-histogram");
p(icps_reflect, "\t{:sent-packets/%lu} "
"{N:/message response%s generated}\n");
p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
"{N:/invalid return address%s}\n");
p(icps_noroute, "\t{:discard-no-route/%lu} "
"{N:/no return route%s}\n");
#undef p
#undef p1a
#undef p2
if (live) {
len = sizeof i;
if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
0)
return;
xo_emit("\tICMP address mask responses are "
"{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
}
xo_close_container(name);
}
/*
* Dump IGMP statistics structure.
*/
void
igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
{
struct igmpstat igmpstat;
if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
sizeof(igmpstat), kread) != 0)
return;
if (igmpstat.igps_version != IGPS_VERSION_3) {
xo_warnx("%s: version mismatch (%d != %d)", __func__,
igmpstat.igps_version, IGPS_VERSION_3);
}
if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
xo_warnx("%s: size mismatch (%d != %d)", __func__,
igmpstat.igps_len, IGPS_VERSION3_LEN);
}
xo_open_container(name);
xo_emit("{T:/%s}:\n", name);
#define p64(f, m) if (igmpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
#define py64(f, m) if (igmpstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
p64(igps_rcv_total, "\t{:received-messages/%ju} "
"{N:/message%s received}\n");
p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
"{N:/message%s received with too few bytes}\n");
p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
"{N:/message%s received with wrong TTL}\n");
p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
"{N:/message%s received with bad checksum}\n");
py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
"{N:/V1\\/V2 membership quer%s received}\n");
py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
"{N:/V3 membership quer%s received}\n");
py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
"{N:/membership quer%s received with invalid field(s)}\n");
py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
"{N:/general quer%s received}\n");
py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
"{N:/group quer%s received}\n");
py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
"{N:/group-source quer%s received}\n");
py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
"{N:/group-source quer%s dropped}\n");
p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
"{N:/membership report%s received}\n");
p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
"{N:/membership report%s received with invalid field(s)}\n");
p64(igps_rcv_ourreports, "\t"
"{:received-membership-reports-matching/%ju} "
"{N:/membership report%s received for groups to which we belong}"
"\n");
p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
"{N:/V3 report%s received without Router Alert}\n");
p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
"{N:/membership report%s sent}\n");
#undef p64
#undef py64
xo_close_container(name);
}
/*
* Dump PIM statistics structure.
*/
void
pim_stats(u_long off __unused, const char *name, int af1 __unused,
int proto __unused)
{
struct pimstat pimstat;
if (fetch_stats("net.inet.pim.stats", off, &pimstat,
sizeof(pimstat), kread_counters) != 0)
return;
xo_open_container(name);
xo_emit("{T:/%s}:\n", name);
#define p(f, m) if (pimstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
#define py(f, m) if (pimstat.f || sflag <= 1) \
xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
"{N:/message%s received}\n");
p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
"{N:/byte%s received}\n");
p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
"{N:/message%s received with too few bytes}\n");
p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
"{N:/message%s received with bad checksum}\n");
p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
"{N:/message%s received with bad version}\n");
p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
"{N:/data register message%s received}\n");
p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
"{N:/data register byte%s received}\n");
p(pims_rcv_registers_wrongiif, "\t"
"{:received-data-register-wrong-interface/%ju} "
"{N:/data register message%s received on wrong iif}\n");
p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
"{N:/bad register%s received}\n");
p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
"{N:/data register message%s sent}\n");
p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
"{N:/data register byte%s sent}\n");
#undef p
#undef py
xo_close_container(name);
}
/*
* Pretty print an Internet address (net address + port).
*/
void
inetprint(const char *container, struct in_addr *in, int port,
const char *proto, int num_port, const int af1)
{
struct servent *sp = 0;
char line[80], *cp;
int width;
size_t alen, plen;
if (container)
xo_open_container(container);
if (Wflag)
snprintf(line, sizeof(line), "%s.", inetname(in));
else
snprintf(line, sizeof(line), "%.*s.",
(Aflag && !num_port) ? 12 : 16, inetname(in));
alen = strlen(line);
cp = line + alen;
if (!num_port && port)
sp = getservbyport((int)port, proto);
if (sp || port == 0)
snprintf(cp, sizeof(line) - alen,
"%.15s ", sp ? sp->s_name : "*");
else
snprintf(cp, sizeof(line) - alen,
"%d ", ntohs((u_short)port));
width = (Aflag && !Wflag) ? 18 :
((!Wflag || af1 == AF_INET) ? 22 : 45);
if (Wflag)
xo_emit("{d:target/%-*s} ", width, line);
else
xo_emit("{d:target/%-*.*s} ", width, width, line);
plen = strlen(cp) - 1;
alen--;
xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
plen, cp);
if (container)
xo_close_container(container);
}
/*
* Construct an Internet address representation.
* If numeric_addr has been supplied, give
* numeric value, otherwise try for symbolic name.
*/
char *
inetname(struct in_addr *inp)
{
char *cp;
static char line[MAXHOSTNAMELEN];
struct hostent *hp;
struct netent *np;
cp = 0;
if (!numeric_addr && inp->s_addr != INADDR_ANY) {
int net = inet_netof(*inp);
int lna = inet_lnaof(*inp);
if (lna == INADDR_ANY) {
np = getnetbyaddr(net, AF_INET);
if (np)
cp = np->n_name;
}
if (cp == NULL) {
hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
if (hp) {
cp = hp->h_name;
trimdomain(cp, strlen(cp));
}
}
}
if (inp->s_addr == INADDR_ANY)
strcpy(line, "*");
else if (cp) {
strlcpy(line, cp, sizeof(line));
} else {
inp->s_addr = ntohl(inp->s_addr);
#define C(x) ((u_int)((x) & 0xff))
snprintf(line, sizeof(line), "%u.%u.%u.%u",
C(inp->s_addr >> 24), C(inp->s_addr >> 16),
C(inp->s_addr >> 8), C(inp->s_addr));
}
return (line);
}
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