585 lines
13 KiB
C
585 lines
13 KiB
C
/*
|
|
* Copyright (c) 1993
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
/*static char sccsid[] = "From: @(#)sysctl.c 8.1 (Berkeley) 6/6/93"; */
|
|
static const char rcsid[] =
|
|
"$Id: sysctl.c,v 1.3 1995/02/09 23:16:17 wollman Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/gmon.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/socket.h>
|
|
#include <vm/vm_param.h>
|
|
#include <machine/cpu.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/ip_icmp.h>
|
|
#include <netinet/icmp_var.h>
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/udp_var.h>
|
|
#include <netinet/tcp.h>
|
|
#include <netinet/tcp_seq.h>
|
|
#include <netinet/tcp_timer.h>
|
|
#include <netinet/tcp_var.h>
|
|
#include <netinet/igmp_var.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
struct ctlname topname[] = CTL_NAMES;
|
|
struct ctlname kernname[] = CTL_KERN_NAMES;
|
|
struct ctlname vmname[] = CTL_VM_NAMES;
|
|
struct ctlname netname[] = CTL_NET_NAMES;
|
|
struct ctlname hwname[] = CTL_HW_NAMES;
|
|
struct ctlname username[] = CTL_USER_NAMES;
|
|
struct ctlname debugname[CTL_DEBUG_MAXID];
|
|
#ifdef CTL_MACHDEP_NAMES
|
|
struct ctlname machdepname[] = CTL_MACHDEP_NAMES;
|
|
#endif
|
|
char names[BUFSIZ];
|
|
|
|
struct list {
|
|
struct ctlname *list;
|
|
int size;
|
|
};
|
|
struct list toplist = { topname, CTL_MAXID };
|
|
struct list secondlevel[] = {
|
|
{ 0, 0 }, /* CTL_UNSPEC */
|
|
{ kernname, KERN_MAXID }, /* CTL_KERN */
|
|
{ vmname, VM_MAXID }, /* CTL_VM */
|
|
{ 0, 0 }, /* CTL_FS */
|
|
{ netname, NET_MAXID }, /* CTL_NET */
|
|
{ 0, CTL_DEBUG_MAXID }, /* CTL_DEBUG */
|
|
{ hwname, HW_MAXID }, /* CTL_HW */
|
|
#ifdef CTL_MACHDEP_NAMES
|
|
{ machdepname, CPU_MAXID }, /* CTL_MACHDEP */
|
|
#else
|
|
{ 0, 0 }, /* CTL_MACHDEP */
|
|
#endif
|
|
{ username, USER_MAXID }, /* CTL_USER_NAMES */
|
|
};
|
|
|
|
int Aflag, aflag, nflag, wflag;
|
|
|
|
/*
|
|
* Variables requiring special processing.
|
|
*/
|
|
#define CLOCK 0x00000001
|
|
#define BOOTTIME 0x00000002
|
|
#define CONSDEV 0x00000004
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
extern char *optarg;
|
|
extern int optind;
|
|
int ch, lvl1;
|
|
|
|
while ((ch = getopt(argc, argv, "Aanw")) != EOF) {
|
|
switch (ch) {
|
|
|
|
case 'A':
|
|
Aflag = 1;
|
|
break;
|
|
|
|
case 'a':
|
|
aflag = 1;
|
|
break;
|
|
|
|
case 'n':
|
|
nflag = 1;
|
|
break;
|
|
|
|
case 'w':
|
|
wflag = 1;
|
|
break;
|
|
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (Aflag || aflag) {
|
|
debuginit();
|
|
for (lvl1 = 1; lvl1 < CTL_MAXID; lvl1++)
|
|
listall(topname[lvl1].ctl_name, &secondlevel[lvl1]);
|
|
exit(0);
|
|
}
|
|
if (argc == 0)
|
|
usage();
|
|
while (argc-- > 0)
|
|
parse(*argv, 1);
|
|
exit(0);
|
|
}
|
|
|
|
/*
|
|
* List all variables known to the system.
|
|
*/
|
|
listall(prefix, lp)
|
|
char *prefix;
|
|
struct list *lp;
|
|
{
|
|
int lvl2;
|
|
char *cp, name[BUFSIZ];
|
|
|
|
if (lp->list == 0)
|
|
return;
|
|
strcpy(name, prefix);
|
|
cp = &name[strlen(name)];
|
|
*cp++ = '.';
|
|
for (lvl2 = 0; lvl2 < lp->size; lvl2++) {
|
|
if (lp->list[lvl2].ctl_name == 0)
|
|
continue;
|
|
strcpy(cp, lp->list[lvl2].ctl_name);
|
|
parse(name, Aflag);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Parse a name into a MIB entry.
|
|
* Lookup and print out the MIB entry if it exists.
|
|
* Set a new value if requested.
|
|
*/
|
|
parse(string, flags)
|
|
char *string;
|
|
int flags;
|
|
{
|
|
int indx, type, state, size, len;
|
|
int special = 0;
|
|
void *newval = 0;
|
|
int intval, newsize = 0;
|
|
quad_t quadval;
|
|
struct list *lp;
|
|
int mib[CTL_MAXNAME];
|
|
char *cp, *bufp, buf[BUFSIZ], strval[BUFSIZ];
|
|
|
|
bufp = buf;
|
|
snprintf(buf, BUFSIZ, "%s", string);
|
|
if ((cp = strchr(string, '=')) != NULL) {
|
|
if (!wflag) {
|
|
fprintf(stderr, "Must specify -w to set variables\n");
|
|
exit(2);
|
|
}
|
|
*strchr(buf, '=') = '\0';
|
|
*cp++ = '\0';
|
|
while (isspace(*cp))
|
|
cp++;
|
|
newval = cp;
|
|
newsize = strlen(cp);
|
|
}
|
|
if ((indx = findname(string, "top", &bufp, &toplist)) == -1)
|
|
return;
|
|
mib[0] = indx;
|
|
if (indx == CTL_DEBUG)
|
|
debuginit();
|
|
lp = &secondlevel[indx];
|
|
if (lp->list == 0) {
|
|
fprintf(stderr, "%s: class is not implemented\n",
|
|
topname[indx]);
|
|
return;
|
|
}
|
|
if (bufp == NULL) {
|
|
listall(topname[indx].ctl_name, lp);
|
|
return;
|
|
}
|
|
if ((indx = findname(string, "second", &bufp, lp)) == -1)
|
|
return;
|
|
mib[1] = indx;
|
|
type = lp->list[indx].ctl_type;
|
|
len = 2;
|
|
switch (mib[0]) {
|
|
|
|
case CTL_KERN:
|
|
switch (mib[1]) {
|
|
case KERN_PROF:
|
|
mib[2] = GPROF_STATE;
|
|
size = sizeof state;
|
|
if (sysctl(mib, 3, &state, &size, NULL, 0) < 0) {
|
|
if (flags == 0)
|
|
return;
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: ", string);
|
|
fprintf(stderr,
|
|
"kernel is not compiled for profiling\n");
|
|
return;
|
|
}
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: %s\n", string,
|
|
state == GMON_PROF_OFF ? "off" : "running");
|
|
return;
|
|
case KERN_VNODE:
|
|
case KERN_FILE:
|
|
if (flags == 0)
|
|
return;
|
|
fprintf(stderr,
|
|
"Use pstat to view %s information\n", string);
|
|
return;
|
|
case KERN_PROC:
|
|
if (flags == 0)
|
|
return;
|
|
fprintf(stderr,
|
|
"Use ps to view %s information\n", string);
|
|
return;
|
|
case KERN_CLOCKRATE:
|
|
special |= CLOCK;
|
|
break;
|
|
case KERN_BOOTTIME:
|
|
special |= BOOTTIME;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case CTL_HW:
|
|
break;
|
|
|
|
case CTL_VM:
|
|
if (mib[1] == VM_LOADAVG) {
|
|
double loads[3];
|
|
|
|
getloadavg(loads, 3);
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: ", string);
|
|
fprintf(stdout, "%.2f %.2f %.2f\n",
|
|
loads[0], loads[1], loads[2]);
|
|
return;
|
|
}
|
|
if (flags == 0)
|
|
return;
|
|
fprintf(stderr,
|
|
"Use vmstat or systat to view %s information\n", string);
|
|
return;
|
|
|
|
case CTL_NET:
|
|
if (mib[1] == PF_INET) {
|
|
len = sysctl_inet(string, &bufp, mib, flags, &type,
|
|
&special);
|
|
if (len >= 0)
|
|
break;
|
|
return;
|
|
}
|
|
if (flags == 0)
|
|
return;
|
|
fprintf(stderr, "Use netstat to view %s information\n", string);
|
|
return;
|
|
|
|
case CTL_DEBUG:
|
|
mib[2] = CTL_DEBUG_VALUE;
|
|
len = 3;
|
|
break;
|
|
|
|
case CTL_MACHDEP:
|
|
#ifdef CPU_CONSDEV
|
|
if (mib[1] == CPU_CONSDEV)
|
|
special |= CONSDEV;
|
|
#endif
|
|
break;
|
|
|
|
case CTL_FS:
|
|
case CTL_USER:
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "Illegal top level value: %d\n", mib[0]);
|
|
return;
|
|
|
|
}
|
|
if (bufp) {
|
|
fprintf(stderr, "name %s in %s is unknown\n", *bufp, string);
|
|
return;
|
|
}
|
|
if (newsize > 0) {
|
|
switch (type) {
|
|
case CTLTYPE_INT:
|
|
intval = atoi(newval);
|
|
newval = &intval;
|
|
newsize = sizeof intval;
|
|
break;
|
|
|
|
case CTLTYPE_QUAD:
|
|
sscanf(newval, "%qd", &quadval);
|
|
newval = &quadval;
|
|
newsize = sizeof quadval;
|
|
break;
|
|
}
|
|
}
|
|
size = BUFSIZ;
|
|
if (sysctl(mib, len, buf, &size, newsize ? newval : 0, newsize) == -1) {
|
|
if (flags == 0)
|
|
return;
|
|
switch (errno) {
|
|
case EOPNOTSUPP:
|
|
fprintf(stderr, "%s: value is not available\n", string);
|
|
return;
|
|
case ENOTDIR:
|
|
fprintf(stderr, "%s: specification is incomplete\n",
|
|
string);
|
|
return;
|
|
case ENOMEM:
|
|
fprintf(stderr, "%s: type is unknown to this program\n",
|
|
string);
|
|
return;
|
|
default:
|
|
perror(string);
|
|
return;
|
|
}
|
|
}
|
|
if (special & CLOCK) {
|
|
struct clockinfo *clkp = (struct clockinfo *)buf;
|
|
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: ", string);
|
|
fprintf(stdout,
|
|
"hz = %d, tick = %d, profhz = %d, stathz = %d\n",
|
|
clkp->hz, clkp->tick, clkp->profhz, clkp->stathz);
|
|
return;
|
|
}
|
|
if (special & BOOTTIME) {
|
|
struct timeval *btp = (struct timeval *)buf;
|
|
|
|
if (!nflag)
|
|
fprintf(stdout, "%s = %s", string,
|
|
ctime(&btp->tv_sec));
|
|
else
|
|
fprintf(stdout, "%d\n", btp->tv_sec);
|
|
return;
|
|
}
|
|
if (special & CONSDEV) {
|
|
dev_t dev = *(dev_t *)buf;
|
|
|
|
if (!nflag)
|
|
fprintf(stdout, "%s = %s\n", string,
|
|
devname(dev, S_IFCHR));
|
|
else
|
|
fprintf(stdout, "0x%x\n", dev);
|
|
return;
|
|
}
|
|
switch (type) {
|
|
case CTLTYPE_INT:
|
|
if (newsize == 0) {
|
|
if (!nflag)
|
|
fprintf(stdout, "%s = ", string);
|
|
fprintf(stdout, "%d\n", *(int *)buf);
|
|
} else {
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: %d -> ", string,
|
|
*(int *)buf);
|
|
fprintf(stdout, "%d\n", *(int *)newval);
|
|
}
|
|
return;
|
|
|
|
case CTLTYPE_STRING:
|
|
if (newsize == 0) {
|
|
if (!nflag)
|
|
fprintf(stdout, "%s = ", string);
|
|
fprintf(stdout, "%s\n", buf);
|
|
} else {
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: %s -> ", string, buf);
|
|
fprintf(stdout, "%s\n", newval);
|
|
}
|
|
return;
|
|
|
|
case CTLTYPE_QUAD:
|
|
if (newsize == 0) {
|
|
if (!nflag)
|
|
fprintf(stdout, "%s = ", string);
|
|
fprintf(stdout, "%qd\n", *(quad_t *)buf);
|
|
} else {
|
|
if (!nflag)
|
|
fprintf(stdout, "%s: %qd -> ", string,
|
|
*(quad_t *)buf);
|
|
fprintf(stdout, "%qd\n", *(quad_t *)newval);
|
|
}
|
|
return;
|
|
|
|
case CTLTYPE_STRUCT:
|
|
fprintf(stderr, "%s: unknown structure returned\n",
|
|
string);
|
|
return;
|
|
|
|
default:
|
|
case CTLTYPE_NODE:
|
|
fprintf(stderr, "%s: unknown type returned\n",
|
|
string);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize the set of debugging names
|
|
*/
|
|
debuginit()
|
|
{
|
|
int mib[3], size, loc, i;
|
|
|
|
if (secondlevel[CTL_DEBUG].list != 0)
|
|
return;
|
|
secondlevel[CTL_DEBUG].list = debugname;
|
|
mib[0] = CTL_DEBUG;
|
|
mib[2] = CTL_DEBUG_NAME;
|
|
for (loc = 0, i = 0; i < CTL_DEBUG_MAXID; i++) {
|
|
mib[1] = i;
|
|
size = BUFSIZ - loc;
|
|
if (sysctl(mib, 3, &names[loc], &size, NULL, 0) == -1)
|
|
continue;
|
|
debugname[i].ctl_name = &names[loc];
|
|
debugname[i].ctl_type = CTLTYPE_INT;
|
|
loc += size;
|
|
}
|
|
}
|
|
|
|
struct ctlname inetname[] = CTL_IPPROTO_NAMES;
|
|
struct ctlname ipname[] = IPCTL_NAMES;
|
|
struct ctlname icmpname[] = ICMPCTL_NAMES;
|
|
struct ctlname udpname[] = UDPCTL_NAMES;
|
|
struct ctlname tcpname[] = TCPCTL_NAMES;
|
|
struct ctlname igmpname[] = IGMPCTL_NAMES;
|
|
struct list inetlist = { inetname, IPPROTO_MAXID };
|
|
struct list inetvars[] = {
|
|
{ ipname, IPCTL_MAXID }, /* ip */
|
|
{ icmpname, ICMPCTL_MAXID }, /* icmp */
|
|
{ igmpname, IGMPCTL_MAXID }, /* igmp */
|
|
{ 0, 0 }, /* ggp */
|
|
{ 0, 0 }, /* ipencap */
|
|
{ 0, 0 },
|
|
{ tcpname, TCPCTL_MAXID }, /* tcp */
|
|
{ 0, 0 },
|
|
{ 0, 0 }, /* egp */
|
|
{ 0, 0 },
|
|
{ 0, 0 },
|
|
{ 0, 0 },
|
|
{ 0, 0 }, /* pup */
|
|
{ 0, 0 },
|
|
{ 0, 0 },
|
|
{ 0, 0 },
|
|
{ 0, 0 },
|
|
{ udpname, UDPCTL_MAXID }, /* udp */
|
|
};
|
|
|
|
/*
|
|
* handle internet requests
|
|
*/
|
|
int
|
|
sysctl_inet(string, bufpp, mib, flags, typep, specialp)
|
|
char *string;
|
|
char **bufpp;
|
|
int mib[];
|
|
int flags;
|
|
int *typep;
|
|
int *specialp;
|
|
{
|
|
struct list *lp;
|
|
int indx;
|
|
|
|
if (*bufpp == NULL) {
|
|
listall(string, &inetlist);
|
|
return (-1);
|
|
}
|
|
if ((indx = findname(string, "third", bufpp, &inetlist)) == -1)
|
|
return (-1);
|
|
mib[2] = indx;
|
|
if (indx <= IPPROTO_UDP && inetvars[indx].list != NULL)
|
|
lp = &inetvars[indx];
|
|
else if (!flags)
|
|
return (-1);
|
|
else {
|
|
fprintf(stderr, "%s: no variables defined for this protocol\n",
|
|
string);
|
|
return (-1);
|
|
}
|
|
if (*bufpp == NULL) {
|
|
listall(string, lp);
|
|
return (-1);
|
|
}
|
|
if ((indx = findname(string, "fourth", bufpp, lp)) == -1)
|
|
return (-1);
|
|
mib[3] = indx;
|
|
*typep = lp->list[indx].ctl_type;
|
|
return (4);
|
|
}
|
|
|
|
/*
|
|
* Scan a list of names searching for a particular name.
|
|
*/
|
|
findname(string, level, bufp, namelist)
|
|
char *string;
|
|
char *level;
|
|
char **bufp;
|
|
struct list *namelist;
|
|
{
|
|
char *name;
|
|
int i;
|
|
|
|
if (namelist->list == 0 || (name = strsep(bufp, ".")) == NULL) {
|
|
fprintf(stderr, "%s: incomplete specification\n", string);
|
|
return (-1);
|
|
}
|
|
for (i = 0; i < namelist->size; i++)
|
|
if (namelist->list[i].ctl_name != NULL &&
|
|
strcmp(name, namelist->list[i].ctl_name) == 0)
|
|
break;
|
|
if (i == namelist->size) {
|
|
fprintf(stderr, "%s level name %s in %s is invalid\n",
|
|
level, name, string);
|
|
return (-1);
|
|
}
|
|
return (i);
|
|
}
|
|
|
|
usage()
|
|
{
|
|
|
|
(void)fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n\t%s\n",
|
|
"sysctl [-n] variable ...", "sysctl [-n] -w variable=value ...",
|
|
"sysctl [-n] -a", "sysctl [-n] -A");
|
|
exit(1);
|
|
}
|