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)
warn("failed to zero bpf counters");
return;
}
if (sysctlbyname("net.bpf.stats", NULL, &size,
NULL, 0) < 0) {
warn("net.bpf.stats");
return;
}
if (size == 0)
return;
bd = malloc(size);
if (bd == NULL) {
warn("malloc failed");
return;
}
if (sysctlbyname("net.bpf.stats", bd, &size,
NULL, 0) < 0) {
warn("net.bpf.stats");
free(bd);
return;
}
(void) printf("%5s %6s %7s %9s %9s %9s %5s %5s %s\n",
"Pid", "Netif", "Flags", "Recv", "Drop", "Match", "Sblen",
"Hblen", "Command");
for (d = &bd[0]; d < &bd[size / sizeof(*d)]; d++) {
if (d->bd_structsize != sizeof(*d)) {
warnx("bpf_stats_extended: version mismatch");
return;
}
if (ifname && strcmp(ifname, d->bd_ifname) != 0)
continue;
bpf_flags(d, flagbuf);
pname = bpf_pidname(d->bd_pid);
(void) printf("%5d %6s %7s %9ju %9ju %9ju %5d %5d %s\n",
d->bd_pid, d->bd_ifname, flagbuf,
d->bd_rcount, d->bd_dcount, d->bd_fcount,
d->bd_slen, d->bd_hlen, pname);
free(pname);
}
free(bd);
}
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");
pname = bpf_pidname(d->bd_pid);
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);
free(pname);
xo_close_instance("bpf-entry");
}
xo_close_list("bpf-entry");
xo_close_container("bpf-statistics");
free(bd);
}