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/* |
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* i-scream central monitoring system |
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* Copyright (C) 2000-2002 i-scream |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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|
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#include <stdio.h> |
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#include "ukcprog.h" |
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#include <sys/param.h> |
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#include <sys/ucred.h> |
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#include <sys/mount.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <sys/utsname.h> |
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#include <sys/types.h> |
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#include <utmp.h> |
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#include <sys/dkstat.h> |
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#include <kvm.h> |
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#include <unistd.h> |
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#include <sys/sysctl.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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#include <time.h> |
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#include <sys/time.h> |
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|
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uid_t uid; |
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uid_t euid; |
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gid_t gid; |
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gid_t egid; |
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|
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void die(){ |
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exit(1); |
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} |
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|
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void diskStats(){ |
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struct statfs *mp; |
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int nummnt; |
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int counter=0; |
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char *mntpnt; |
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char *devicename; |
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|
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nummnt=getmntinfo(&mp , MNT_LOCAL); |
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if (nummnt<=0){ |
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errf("Failed to get disk stats (%m)"); |
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die(); |
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} |
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|
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mntpnt=malloc(MNAMELEN); |
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devicename=malloc(MNAMELEN); |
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|
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for(;counter<nummnt;counter++){ |
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strncpy(mntpnt, mp->f_mntonname ,MNAMELEN); |
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strncpy(devicename, mp->f_mntfromname ,MNAMELEN); |
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printf("packet.disk.p%d.attributes.mount %s\n", counter, mntpnt); |
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printf("packet.disk.p%d.attributes.name %s\n", counter, devicename); |
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printf("packet.disk.p%d.attributes.kbytes %lu\n",counter, ((mp->f_bsize/1024) * mp->f_blocks)); |
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printf("packet.disk.p%d.attributes.used %lu\n",counter, (((mp->f_bsize/1024) * mp->f_blocks) -((mp->f_bsize/1024) * mp->f_bfree))); |
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printf("packet.disk.p%d.attributes.avail %lu\n",counter, (mp->f_bsize/1024) * mp->f_bavail); |
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printf("packet.disk.p%d.attributes.totalinodes %lu\n", counter, mp->f_files); |
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printf("packet.disk.p%d.attributes.freeinodes %lu\n",counter, mp->f_ffree); |
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|
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mp++; |
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} |
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|
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|
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} |
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|
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void osStats(){ |
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struct utsname os; |
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|
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if((uname(&os)) != 0){ |
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errf("Failed to get os stats (%m)"); |
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die(); |
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} |
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|
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printf("packet.os.name %s\n", os.sysname); |
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printf("packet.os.release %s\n" , os.release); |
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printf("packet.os.version %s\n", os.version); |
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printf("packet.os.sysname %s\n" , os.nodename); |
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printf("packet.os.platform %s\n", os.machine); |
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|
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} |
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void loadStats(){ |
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double loadav[3]; |
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|
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if((getloadavg(loadav,3)) == -1){ |
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errf("Failed to get load averages (%m)"); |
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die(); |
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} |
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|
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printf("packet.load.load1 %.2f\n",loadav[0]); |
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printf("packet.load.load5 %.2f\n",loadav[1]); |
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printf("packet.load.load15 %.2f\n",loadav[2]); |
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} |
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|
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void userStats(){ |
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struct utmp users; |
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FILE *f; |
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int numusers=0; |
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|
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if ((f=fopen(_PATH_UTMP, "r")) == NULL){ |
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errf("Failed to get user stats(%m)"); |
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die(); |
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} |
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|
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printf("packet.users.list"); |
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|
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while((fread(&users, sizeof(users),1,f)) != 0){ |
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if (users.ut_name[0] == '\0') continue; |
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printf(" %s",users.ut_name); |
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numusers++; |
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} |
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|
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printf("\npacket.users.count %d\n",numusers); |
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|
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} |
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|
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void systemStats(){ |
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|
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long cp_time[CPUSTATES]; |
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long total, user, idle, kernel, nice; |
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long totalmem, freemem, swaptotal, swapused; |
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float stat; |
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|
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static char *uptimename = "kern.boottime"; |
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static char *cpname = "kern.cp_time"; |
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static char *tmemname = "hw.physmem"; |
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static char *fmemname = "vm.stats.vm.v_free_count"; |
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int pagesize=-1; |
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size_t size; |
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|
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kvm_t *kvmd = NULL; |
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struct kvm_swap swapinfo; |
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char errbuf[_POSIX2_LINE_MAX]; |
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time_t current; |
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struct timeval uptime; |
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|
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time(¤t); |
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|
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if (sysctlbyname(uptimename, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
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|
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if (sysctlbyname(uptimename, &uptime, &size, NULL, NULL) < 0){ |
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errf("Failed to get cpu stats (%m)"); |
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die(); |
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} |
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|
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printf("packet.os.uptime %ld\n",(current-(uptime.tv_sec))); |
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|
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|
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if (sysctlbyname(cpname, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
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if (size != sizeof cp_time){ |
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errf("bailing out, trying to write into something to small"); |
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die(); |
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} |
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|
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if (sysctlbyname(cpname, &cp_time, &size, NULL, NULL) < 0){ |
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errf("Failed to get cpu stats (%m)"); |
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die(); |
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} |
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|
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user=cp_time[CP_USER]; |
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nice=cp_time[CP_NICE]; |
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kernel=cp_time[CP_SYS]; |
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idle=cp_time[CP_IDLE]; |
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|
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sleep(1); |
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|
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if (sysctlbyname(cpname, &cp_time, &size, NULL, NULL) < 0){ |
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errf("Failed to get cpu stats (%m)"); |
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die(); |
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} |
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|
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user=cp_time[CP_USER]-user; |
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nice=cp_time[CP_NICE]-nice; |
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kernel=cp_time[CP_SYS]-kernel; |
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idle=cp_time[CP_IDLE]-idle; |
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|
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total=user+nice+kernel+idle; |
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stat=((float)(user+nice)/(float)total)*100.0; |
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printf("packet.cpu.user %.2f\n",stat); |
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stat=((float)(kernel)/(float)total)*100.0; |
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printf("packet.cpu.kernel %.2f\n",stat); |
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stat=((float)(idle)/(float)total)*100.0; |
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printf("packet.cpu.idle %.2f\n",stat); |
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|
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/* Cos i-scream's expects this to be sent :/ */ |
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printf("packet.cpu.iowait 0\n"); |
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printf("packet.cpu.swap 0\n"); |
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|
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/* MEMORY STATS */ |
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pagesize=getpagesize(); |
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if (pagesize==-1){ |
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errf("Failed to get pagesize (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(tmemname, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(tmemname, &totalmem, &size, NULL, NULL) < 0){ |
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errf("Failed to get memory stats (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(fmemname, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(fmemname, &freemem, &size, NULL, NULL) < 0){ |
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errf("Failed to get memory stats (%m)"); |
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die(); |
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} |
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|
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totalmem/=(1024*1024); |
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freemem=(freemem*pagesize)/(1024*1024); |
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|
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printf("packet.memory.total %ld\n", totalmem); |
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printf("packet.memory.free %ld\n", freemem); |
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printf("packet.memory.used %ld\n", (totalmem-freemem)); |
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|
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/* Swap stats */ |
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|
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/* Get sufficent privilages to do this */ |
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if (gid!=egid){ |
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/* Means we are setgid something, hopefully kmem :) */ |
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if ((setegid(egid)) != 0){ |
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errf("Failed to gain sufficent privilages (%m)"); |
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die(); |
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} |
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} |
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|
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kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf); |
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if (kvmd == NULL){ |
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errf("Failed to open kvm info to get swap stats (%m)"); |
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die(); |
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} |
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|
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/* Lose our setgid'ness */ |
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|
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if ((setegid(gid)) != 0){ |
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errf("Failed to release permissions, refusing to keep setgid. (%m)"); |
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die(); |
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} |
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|
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|
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/* ok, just for proof of concept atm, ideally this will need to handle more |
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than one swap device */ |
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|
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if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){ |
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errf("Failed to get swap info (%m)"); |
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die(); |
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} |
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|
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swaptotal=((((long)swapinfo.ksw_total)*pagesize)/1024)/1024; |
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swapused=((((long)swapinfo.ksw_used)*pagesize)/1024)/1024; |
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|
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printf("packet.swap.total %ld\n" , swaptotal); |
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printf("packet.swap.used %ld\n", swapused); |
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printf("packet.swap.free %lu\n", (swaptotal-swapused)); |
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|
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} |
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|
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void processStats(){ |
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int sleeping=-1; |
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int zombie=0; |
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int stopped=0; |
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int running=0; |
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char *line; |
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char *line_p; |
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|
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FILE *f; |
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|
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if((f=popen("/bin/ps -ax" , "r")) == NULL) { |
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errf("Failed to get process stats (%m)"); |
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die(); |
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} |
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|
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while((line=fpgetline(f)) != NULL) { |
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line_p=line; |
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for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
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line_p=strchr(line_p, ' '); |
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for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
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line_p=strchr(line_p, ' '); |
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for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
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if (line_p==NULL) abort(); |
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|
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if (*line_p=='S') sleeping++; |
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if (*line_p=='I') sleeping++; |
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if (*line_p=='R') running++; |
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if (*line_p=='D') running++; |
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if (*line_p=='Z') zombie++; |
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if (*line_p=='T') stopped++; |
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if (*line_p=='J') running++; |
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|
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} |
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|
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if((pclose(f)) != 0) { |
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errf("Failed to close process stats (%m)"); |
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die(); |
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} |
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|
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printf("packet.processes.sleeping %d\n",sleeping); |
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printf("packet.processes.cpu %d\n",running); |
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printf("packet.processes.zombie %d\n",zombie); |
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printf("packet.processes.stopped %d\n", stopped); |
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printf("packet.processes.total %d\n", (sleeping+running+zombie+stopped)); |
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|
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|
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} |
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|
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|
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int main(){ |
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uid=getuid(); |
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euid=geteuid(); |
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gid=getgid(); |
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egid=getegid(); |
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|
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/* We dont want to run with more permissions than we need, until we need em */ |
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if ((setegid(gid)) != 0){ |
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errf("Failed to release permissions, refusing to keep setgid. (%m)"); |
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die(); |
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} |
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|
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if ((seteuid(uid)) != 0){ |
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errf("Failed to release permissions, refusing to keep setuid. (%m)"); |
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die(); |
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} |
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|
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diskStats(); |
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osStats(); |
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loadStats(); |
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userStats(); |
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systemStats(); |
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processStats(); |
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exit(0); |
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} |
