mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-19 01:11:05 +01:00
391 lines
11 KiB
C
391 lines
11 KiB
C
/*-
|
|
* Copyright (c) 1993, John Brezak
|
|
* 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 rcsid[] = "$Id: rusers_proc.c,v 1.3 1994/11/18 23:36:18 ats Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <signal.h>
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <utmp.h>
|
|
#include <stdio.h>
|
|
#include <syslog.h>
|
|
#include <rpc/rpc.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#ifdef XIDLE
|
|
#include <setjmp.h>
|
|
#include <X11/Xlib.h>
|
|
#include <X11/extensions/xidle.h>
|
|
#endif
|
|
#define utmp rutmp
|
|
#include <rpcsvc/rnusers.h>
|
|
#undef utmp
|
|
|
|
#define IGNOREUSER "sleeper"
|
|
|
|
#ifdef OSF
|
|
#define _PATH_UTMP UTMP_FILE
|
|
#endif
|
|
|
|
#ifndef _PATH_UTMP
|
|
#define _PATH_UTMP "/etc/utmp"
|
|
#endif
|
|
|
|
#ifndef _PATH_DEV
|
|
#define _PATH_DEV "/dev"
|
|
#endif
|
|
|
|
#ifndef UT_LINESIZE
|
|
#define UT_LINESIZE sizeof(((struct utmp *)0)->ut_line)
|
|
#endif
|
|
#ifndef UT_NAMESIZE
|
|
#define UT_NAMESIZE sizeof(((struct utmp *)0)->ut_name)
|
|
#endif
|
|
#ifndef UT_HOSTSIZE
|
|
#define UT_HOSTSIZE sizeof(((struct utmp *)0)->ut_host)
|
|
#endif
|
|
|
|
typedef char ut_line_t[UT_LINESIZE+1];
|
|
typedef char ut_name_t[UT_NAMESIZE+1];
|
|
typedef char ut_host_t[UT_HOSTSIZE+1];
|
|
|
|
utmpidle utmp_idle[MAXUSERS];
|
|
rutmp old_utmp[MAXUSERS];
|
|
ut_line_t line[MAXUSERS];
|
|
ut_name_t name[MAXUSERS];
|
|
ut_host_t host[MAXUSERS];
|
|
|
|
extern int from_inetd;
|
|
|
|
FILE *ufp;
|
|
|
|
#ifdef XIDLE
|
|
Display *dpy;
|
|
|
|
static jmp_buf openAbort;
|
|
|
|
static void
|
|
abortOpen ()
|
|
{
|
|
longjmp (openAbort, 1);
|
|
}
|
|
|
|
XqueryIdle(char *display)
|
|
{
|
|
int first_event, first_error;
|
|
Time IdleTime;
|
|
|
|
(void) signal (SIGALRM, abortOpen);
|
|
(void) alarm ((unsigned) 10);
|
|
if (!setjmp (openAbort)) {
|
|
if (!(dpy= XOpenDisplay(display))) {
|
|
syslog(LOG_ERR, "Cannot open display %s", display);
|
|
return(-1);
|
|
}
|
|
if (XidleQueryExtension(dpy, &first_event, &first_error)) {
|
|
if (!XGetIdleTime(dpy, &IdleTime)) {
|
|
syslog(LOG_ERR, "%s: Unable to get idle time.", display);
|
|
return(-1);
|
|
}
|
|
}
|
|
else {
|
|
syslog(LOG_ERR, "%s: Xidle extension not loaded.", display);
|
|
return(-1);
|
|
}
|
|
XCloseDisplay(dpy);
|
|
}
|
|
else {
|
|
syslog(LOG_ERR, "%s: Server grabbed for over 10 seconds.", display);
|
|
return(-1);
|
|
}
|
|
(void) signal (SIGALRM, SIG_DFL);
|
|
(void) alarm ((unsigned) 0);
|
|
|
|
IdleTime /= 1000;
|
|
return((IdleTime + 30) / 60);
|
|
}
|
|
#endif
|
|
|
|
static u_int
|
|
getidle(char *tty, char *display)
|
|
{
|
|
struct stat st;
|
|
char devname[PATH_MAX];
|
|
time_t now;
|
|
u_long idle;
|
|
|
|
/*
|
|
* If this is an X terminal or console, then try the
|
|
* XIdle extension
|
|
*/
|
|
#ifdef XIDLE
|
|
if (display && *display && (idle = XqueryIdle(display)) >= 0)
|
|
return(idle);
|
|
#endif
|
|
idle = 0;
|
|
if (*tty == 'X') {
|
|
u_long kbd_idle, mouse_idle;
|
|
#if !defined(__FreeBSD__)
|
|
kbd_idle = getidle("kbd", NULL);
|
|
#else
|
|
kbd_idle = getidle("vga", NULL);
|
|
#endif
|
|
mouse_idle = getidle("mouse", NULL);
|
|
idle = (kbd_idle < mouse_idle)?kbd_idle:mouse_idle;
|
|
}
|
|
else {
|
|
sprintf(devname, "%s/%s", _PATH_DEV, tty);
|
|
if (stat(devname, &st) < 0) {
|
|
#ifdef DEBUG
|
|
printf("%s: %s\n", devname, strerror(errno));
|
|
#endif
|
|
return(-1);
|
|
}
|
|
time(&now);
|
|
#ifdef DEBUG
|
|
printf("%s: now=%d atime=%d\n", devname, now,
|
|
st.st_atime);
|
|
#endif
|
|
idle = now - st.st_atime;
|
|
idle = (idle + 30) / 60; /* secs->mins */
|
|
}
|
|
if (idle < 0) idle = 0;
|
|
|
|
return(idle);
|
|
}
|
|
|
|
static utmpidlearr *
|
|
do_names_2(int all)
|
|
{
|
|
static utmpidlearr ut;
|
|
struct utmp usr;
|
|
int nusers = 0;
|
|
|
|
bzero((char *)&ut, sizeof(ut));
|
|
ut.utmpidlearr_val = &utmp_idle[0];
|
|
|
|
ufp = fopen(_PATH_UTMP, "r");
|
|
if (!ufp) {
|
|
syslog(LOG_ERR, "%m");
|
|
return(&ut);
|
|
}
|
|
|
|
/* only entries with both name and line fields */
|
|
while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1 &&
|
|
nusers < MAXUSERS)
|
|
if (*usr.ut_name && *usr.ut_line &&
|
|
strncmp(usr.ut_name, IGNOREUSER,
|
|
sizeof(usr.ut_name))
|
|
#ifdef OSF
|
|
&& usr.ut_type == USER_PROCESS
|
|
#endif
|
|
) {
|
|
utmp_idle[nusers].ui_utmp.ut_time =
|
|
usr.ut_time;
|
|
utmp_idle[nusers].ui_idle =
|
|
getidle(usr.ut_line, usr.ut_host);
|
|
utmp_idle[nusers].ui_utmp.ut_line = line[nusers];
|
|
strncpy(line[nusers], usr.ut_line, UT_LINESIZE);
|
|
utmp_idle[nusers].ui_utmp.ut_name = name[nusers];
|
|
strncpy(name[nusers], usr.ut_name, UT_NAMESIZE);
|
|
utmp_idle[nusers].ui_utmp.ut_host = host[nusers];
|
|
strncpy(host[nusers], usr.ut_host, UT_HOSTSIZE);
|
|
|
|
/* Make sure entries are NUL terminated */
|
|
line[nusers][UT_LINESIZE] =
|
|
name[nusers][UT_NAMESIZE] =
|
|
host[nusers][UT_HOSTSIZE] = '\0';
|
|
nusers++;
|
|
}
|
|
|
|
ut.utmpidlearr_len = nusers;
|
|
fclose(ufp);
|
|
return(&ut);
|
|
}
|
|
|
|
int *
|
|
rusers_num()
|
|
{
|
|
static int num_users = 0;
|
|
struct utmp usr;
|
|
|
|
ufp = fopen(_PATH_UTMP, "r");
|
|
if (!ufp) {
|
|
syslog(LOG_ERR, "%m");
|
|
return(0);
|
|
}
|
|
|
|
/* only entries with both name and line fields */
|
|
while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1)
|
|
if (*usr.ut_name && *usr.ut_line &&
|
|
strncmp(usr.ut_name, IGNOREUSER,
|
|
sizeof(usr.ut_name))
|
|
#ifdef OSF
|
|
&& usr.ut_type == USER_PROCESS
|
|
#endif
|
|
) {
|
|
num_users++;
|
|
}
|
|
|
|
fclose(ufp);
|
|
return(&num_users);
|
|
}
|
|
|
|
static utmparr *
|
|
do_names_1(int all)
|
|
{
|
|
utmpidlearr *utidle;
|
|
static utmparr ut;
|
|
int i;
|
|
|
|
bzero((char *)&ut, sizeof(ut));
|
|
|
|
utidle = do_names_2(all);
|
|
if (utidle) {
|
|
ut.utmparr_len = utidle->utmpidlearr_len;
|
|
ut.utmparr_val = &old_utmp[0];
|
|
for (i = 0; i < ut.utmparr_len; i++)
|
|
bcopy(&utmp_idle[i].ui_utmp, &old_utmp[i],
|
|
sizeof(old_utmp[0]));
|
|
|
|
}
|
|
|
|
return(&ut);
|
|
}
|
|
|
|
utmpidlearr *
|
|
rusersproc_names_2()
|
|
{
|
|
return(do_names_2(0));
|
|
}
|
|
|
|
utmpidlearr *
|
|
rusersproc_allnames_2()
|
|
{
|
|
return(do_names_2(1));
|
|
}
|
|
|
|
utmparr *
|
|
rusersproc_names_1()
|
|
{
|
|
return(do_names_1(0));
|
|
}
|
|
|
|
utmparr *
|
|
rusersproc_allnames_1()
|
|
{
|
|
return(do_names_1(1));
|
|
}
|
|
|
|
void
|
|
rusers_service(rqstp, transp)
|
|
struct svc_req *rqstp;
|
|
SVCXPRT *transp;
|
|
{
|
|
union {
|
|
int fill;
|
|
} argument;
|
|
char *result;
|
|
bool_t (*xdr_argument)(), (*xdr_result)();
|
|
char *(*local)();
|
|
|
|
switch (rqstp->rq_proc) {
|
|
case NULLPROC:
|
|
(void)svc_sendreply(transp, xdr_void, (char *)NULL);
|
|
goto leave;
|
|
|
|
case RUSERSPROC_NUM:
|
|
xdr_argument = xdr_void;
|
|
xdr_result = xdr_int;
|
|
local = (char *(*)()) rusers_num;
|
|
break;
|
|
|
|
case RUSERSPROC_NAMES:
|
|
xdr_argument = xdr_void;
|
|
xdr_result = xdr_utmpidlearr;
|
|
switch (rqstp->rq_vers) {
|
|
case RUSERSVERS_ORIG:
|
|
local = (char *(*)()) rusersproc_names_1;
|
|
break;
|
|
case RUSERSVERS_IDLE:
|
|
local = (char *(*)()) rusersproc_names_2;
|
|
break;
|
|
default:
|
|
svcerr_progvers(transp, RUSERSVERS_ORIG, RUSERSVERS_IDLE);
|
|
goto leave;
|
|
/*NOTREACHED*/
|
|
}
|
|
break;
|
|
|
|
case RUSERSPROC_ALLNAMES:
|
|
xdr_argument = xdr_void;
|
|
xdr_result = xdr_utmpidlearr;
|
|
switch (rqstp->rq_vers) {
|
|
case RUSERSVERS_ORIG:
|
|
local = (char *(*)()) rusersproc_allnames_1;
|
|
break;
|
|
case RUSERSVERS_IDLE:
|
|
local = (char *(*)()) rusersproc_allnames_2;
|
|
break;
|
|
default:
|
|
svcerr_progvers(transp, RUSERSVERS_ORIG, RUSERSVERS_IDLE);
|
|
goto leave;
|
|
/*NOTREACHED*/
|
|
}
|
|
break;
|
|
|
|
default:
|
|
svcerr_noproc(transp);
|
|
goto leave;
|
|
}
|
|
bzero((char *)&argument, sizeof(argument));
|
|
if (!svc_getargs(transp, xdr_argument, &argument)) {
|
|
svcerr_decode(transp);
|
|
goto leave;
|
|
}
|
|
result = (*local)(&argument, rqstp);
|
|
if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
|
|
svcerr_systemerr(transp);
|
|
}
|
|
if (!svc_freeargs(transp, xdr_argument, &argument)) {
|
|
(void)fprintf(stderr, "unable to free arguments\n");
|
|
exit(1);
|
|
}
|
|
leave:
|
|
if (from_inetd)
|
|
exit(0);
|
|
}
|