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freebsd-skq/usr.bin/netstat/inet.c
Michael Tuexen 9e644c2300 tcp: add support for TCP over UDP 
Adding support for TCP over UDP allows communication with
TCP stacks which can be implemented in userspace without
requiring special priviledges or specific support by the OS.
This is joint work with rrs.

Reviewed by:		rrs
Sponsored by:		Netflix, Inc.
MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D29469
2021-04-18 16:16:42 +02:00

1508 lines
48 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.
* 3. 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>
#define _WANT_SOCKET
#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"
#define max(a, b) (((a) > (b)) ? (a) : (b))
#ifdef INET
static void inetprint(const char *, struct in_addr *, int, const char *, int,
const int);
#endif
#ifdef INET6
static int udp_done, tcp_done, sdp_done;
#endif /* INET6 */
static int
pcblist_sysctl(int proto, const char *name, char **bufp)
{
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 = (uintptr_t)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 = (uintptr_t)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_timeo = so->so_timeo;
xso->so_error = so->so_error;
if ((so->so_options & SO_ACCEPTCONN) != 0) {
xso->so_qlen = so->sol_qlen;
xso->so_incqlen = so->sol_incqlen;
xso->so_qlimit = so->sol_qlimit;
} else {
sbtoxsockbuf(&so->so_snd, &xso->so_snd);
sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
xso->so_oobmark = so->so_oobmark;
}
return (0);
}
/*
* 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)
{
static int first = 1;
int istcp;
char *buf;
const char *vchar;
struct xtcpcb *tp;
struct xinpcb *inp;
struct xinpgen *xig, *oxig;
struct xsocket *so;
int fnamelen, cnamelen;
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 (!pcblist_sysctl(proto, name, &buf))
return;
if (cflag || Cflag) {
fnamelen = strlen("Stack");
cnamelen = strlen("CC");
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) {
tp = (struct xtcpcb *)xig;
inp = &tp->xt_inp;
} else {
continue;
}
if (so->xso_protocol != proto)
continue;
if (inp->inp_gencnt > oxig->xig_gen)
continue;
fnamelen = max(fnamelen, (int)strlen(tp->xt_stack));
cnamelen = max(cnamelen, (int)strlen(tp->xt_cc));
}
}
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) {
tp = (struct xtcpcb *)xig;
inp = &tp->xt_inp;
} else {
inp = (struct xinpcb *)xig;
}
so = &inp->xi_socket;
/* 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(" {T:/%-11.11s}", "(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");
}
if (cflag) {
xo_emit(" {T:/%-*.*s}",
fnamelen, fnamelen, "Stack");
}
if (Cflag)
xo_emit(" {T:/%-*.*s} {T:/%10.10s}"
" {T:/%10.10s} {T:/%5.5s}"
" {T:/%3.3s}", cnamelen,
cnamelen, "CC",
"cwin",
"ssthresh",
"MSS",
"ECN");
if (Pflag)
xo_emit(" {T:/%s}", "Log ID");
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:address/%*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) {
#ifdef INET
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);
}
#endif
#if defined(INET) && defined(INET6)
else
#endif
#ifdef INET6
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) {
#ifdef INET
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);
}
#endif
#if defined(INET) && defined(INET6)
else
#endif
#ifdef INET6
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 {
#ifdef INET
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);
}
#endif
#if defined(INET) && defined(INET6)
else
#endif
#ifdef INET6
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 (istcp)
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}",
tp->tt_rexmt / 1000,
(tp->tt_rexmt % 1000) / 10,
tp->tt_persist / 1000,
(tp->tt_persist % 1000) / 10,
tp->tt_keep / 1000,
(tp->tt_keep % 1000) / 10,
tp->tt_2msl / 1000,
(tp->tt_2msl % 1000) / 10,
tp->tt_delack / 1000,
(tp->tt_delack % 1000) / 10,
tp->t_rcvtime / 1000,
(tp->t_rcvtime % 1000) / 10);
}
if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
xo_emit("{:tcp-state/%-11d}", tp->t_state);
else {
xo_emit("{:tcp-state/%-11s}",
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);
}
if (istcp) {
if (cflag)
xo_emit(" {:stack/%-*.*s}",
fnamelen, fnamelen, tp->xt_stack);
if (Cflag)
xo_emit(" {:cc/%-*.*s}"
" {:snd-cwnd/%10lu}"
" {:snd-ssthresh/%10lu}"
" {:t-maxseg/%5u} {:ecn/%3s}",
cnamelen, cnamelen, tp->xt_cc,
tp->t_snd_cwnd, tp->t_snd_ssthresh,
tp->t_maxseg,
(tp->t_state >= TCPS_ESTABLISHED ?
(tp->xt_ecn > 0 ?
(tp->xt_ecn == 1 ?
"ecn" : "ace")
: "off")
: "n/a"));
if (Pflag)
xo_emit(" {:log-id/%s}",
tp->xt_logid[0] == '\0' ?
"-" : tp->xt_logid);
}
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_tunneled_pkts, "\t\t{:received-udp-tunneled-pkts/%ju} "
"{N:/UDP tunneled pkt%s}\n");
p(tcps_tunneled_errs, "\t\t{:received-bad-udp-tunneled-pkts/%ju} "
"{N:/UDP tunneled pkt cnt with error%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_rcvreassfull, "\t\t{:discard-reassembly-queue-full/%ju} "
"{N:discarded due to full reassembly queue}\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");
xo_close_container("ecn");
xo_open_container("tcp-signature");
p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
"{N:/packet%s with matching signature received}\n");
p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
"{N:/packet%s with bad signature received}\n");
p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
"{N:/time%s failed to make signature due to no SA}\n");
p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
"{N:/time%s unexpected signature received}\n");
p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
"{N:/time%s no signature provided by segment}\n");
xo_close_container("tcp-signature");
xo_open_container("pmtud");
p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
"{N:/Path MTU discovery black hole detection activation%s}\n");
p(tcps_pmtud_blackhole_activated_min_mss,
"\t{:pmtud-activated-min-mss/%ju} "
"{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
"{N:/Path MTU discovery black hole detection failure%s}\n");
#undef p
#undef p1a
#undef p2
#undef p2a
#undef p3
xo_close_container("pmtud");
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");
p(txerrors, "{:sent-failures/%ju} {N:/ARP request%s failed to 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;
int error, zflag0;
if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
sizeof(igmpstat), kread) != 0)
return;
/*
* Reread net.inet.igmp.stats when zflag == 1.
* This is because this MIB contains version number and
* length of the structure which are not set when clearing
* the counters.
*/
zflag0 = zflag;
if (zflag) {
zflag = 0;
error = fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
sizeof(igmpstat), kread);
zflag = zflag0;
if (error)
return;
}
if (igmpstat.igps_version != IGPS_VERSION_3) {
xo_warnx("%s: version mismatch (%d != %d)", __func__,
igmpstat.igps_version, IGPS_VERSION_3);
return;
}
if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
xo_warnx("%s: size mismatch (%d != %d)", __func__,
igmpstat.igps_len, IGPS_VERSION3_LEN);
return;
}
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);
}
#ifdef INET
/*
* Pretty print an Internet address (net address + port).
*/
static 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);
}
#endif
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