#include <machine/rtems-bsd-user-space.h>
#ifdef __rtems__
#include "rtems-bsd-netstat-namespace.h"
#endif /* __rtems__ */
/*-
* Copyright (c) 2005 Christian S.J. Peron
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#ifdef __rtems__
#include <machine/rtems-bsd-program.h>
#endif /* __rtems__ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sysctl.h>
#include <rtems/bsd/sys/param.h>
#include <sys/user.h>
#include <net/if.h>
#include <net/bpf.h>
#include <net/bpfdesc.h>
#include <arpa/inet.h>
#include <err.h>
#include <errno.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"
#ifdef __rtems__
#include "rtems-bsd-netstat-bpf-data.h"
#endif /* __rtems__ */
/* print bpf stats */
#ifndef __rtems__
static char *
bpf_pidname(pid_t pid)
{
struct kinfo_proc newkp;
int error, mib[4];
size_t size;
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PID;
mib[3] = pid;
size = sizeof(newkp);
error = sysctl(mib, 4, &newkp, &size, NULL, 0);
if (error < 0) {
xo_warn("kern.proc.pid failed");
return (strdup("??????"));
}
return (strdup(newkp.ki_comm));
}
#endif /* __rtems__ */
static void
bpf_flags(struct xbpf_d *bd, char *flagbuf)
{
*flagbuf++ = bd->bd_promisc ? 'p' : '-';
*flagbuf++ = bd->bd_immediate ? 'i' : '-';
*flagbuf++ = bd->bd_hdrcmplt ? '-' : 'f';
*flagbuf++ = (bd->bd_direction == BPF_D_IN) ? '-' :
((bd->bd_direction == BPF_D_OUT) ? 'o' : 's');
*flagbuf++ = bd->bd_feedback ? 'b' : '-';
#ifndef __rtems__
*flagbuf++ = bd->bd_async ? 'a' : '-';
#endif /* __rtems__ */
*flagbuf++ = bd->bd_locked ? 'l' : '-';
*flagbuf++ = '\0';
if (bd->bd_promisc)
xo_emit("{e:promiscuous/}");
if (bd->bd_immediate)
xo_emit("{e:immediate/}");
if (bd->bd_hdrcmplt)
xo_emit("{e:header-complete/}");
xo_emit("{e:direction}", (bd->bd_direction == BPF_D_IN) ? "input" :
(bd->bd_direction == BPF_D_OUT) ? "output" : "bidirectional");
if (bd->bd_feedback)
xo_emit("{e:feedback/}");
#ifndef __rtems__
if (bd->bd_async)
xo_emit("{e:async/}");
#endif /* __rtems__ */
if (bd->bd_locked)
xo_emit("{e:locked/}");
}
void
bpf_stats(char *ifname)
{
struct xbpf_d *d, *bd, zerostat;
char *pname, flagbuf[12];
size_t size;
if (zflag) {
bzero(&zerostat, sizeof(zerostat));
if (sysctlbyname("net.bpf.stats", NULL, NULL,
&zerostat, sizeof(zerostat)) < 0)
xo_warn("failed to zero bpf counters");
return;
}
if (sysctlbyname("net.bpf.stats", NULL, &size,
NULL, 0) < 0) {
xo_warn("net.bpf.stats");
return;
}
if (size == 0)
return;
bd = malloc(size);
if (bd == NULL) {
xo_warn("malloc failed");
return;
}
if (sysctlbyname("net.bpf.stats", bd, &size,
NULL, 0) < 0) {
xo_warn("net.bpf.stats");
free(bd);
return;
}
xo_emit("{T:/%5s} {T:/%6s} {T:/%7s} {T:/%9s} {T:/%9s} {T:/%9s} "
"{T:/%5s} {T:/%5s} {T:/%s}\n",
"Pid", "Netif", "Flags", "Recv", "Drop", "Match",
"Sblen", "Hblen", "Command");
xo_open_container("bpf-statistics");
xo_open_list("bpf-entry");
for (d = &bd[0]; d < &bd[size / sizeof(*d)]; d++) {
if (d->bd_structsize != sizeof(*d)) {
xo_warnx("bpf_stats_extended: version mismatch");
return;
}
if (ifname && strcmp(ifname, d->bd_ifname) != 0)
continue;
xo_open_instance("bpf-entry");
#ifndef __rtems__
pname = bpf_pidname(d->bd_pid);
#else /* __rtems__ */
pname = "??????";
#endif /* __rtems__ */
xo_emit("{k:pid/%5d} {k:interface-name/%6s} ",
d->bd_pid, d->bd_ifname);
bpf_flags(d, flagbuf);
xo_emit("{d:flags/%7s} {:received-packets/%9ju} "
"{:dropped-packets/%9ju} {:filter-packets/%9ju} "
"{:store-buffer-length/%5d} {:hold-buffer-length/%5d} "
"{:process/%s}\n",
flagbuf, (uintmax_t)d->bd_rcount, (uintmax_t)d->bd_dcount,
(uintmax_t)d->bd_fcount, d->bd_slen, d->bd_hlen, pname);
#ifndef __rtems__
free(pname);
#endif /* __rtems__ */
xo_close_instance("bpf-entry");
}
xo_close_list("bpf-entry");
xo_close_container("bpf-statistics");
free(bd);
}
