| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org.uk |
| 4 |
* Copyright (C) 2000-2002 i-scream |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU General Public License |
| 8 |
* as published by the Free Software Foundation; either version 2 |
| 9 |
* of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <stdio.h> |
| 22 |
#include "ukcprog.h" |
| 23 |
#include <sys/param.h> |
| 24 |
#include <sys/ucred.h> |
| 25 |
#include <sys/mount.h> |
| 26 |
#include <string.h> |
| 27 |
#include <stdlib.h> |
| 28 |
#include <sys/utsname.h> |
| 29 |
#include <sys/types.h> |
| 30 |
#include <utmp.h> |
| 31 |
#include <sys/dkstat.h> |
| 32 |
#include <kvm.h> |
| 33 |
#include <unistd.h> |
| 34 |
#include <sys/sysctl.h> |
| 35 |
#include <fcntl.h> |
| 36 |
#include <limits.h> |
| 37 |
#include <time.h> |
| 38 |
#include <sys/time.h> |
| 39 |
|
| 40 |
uid_t uid; |
| 41 |
uid_t euid; |
| 42 |
gid_t gid; |
| 43 |
gid_t egid; |
| 44 |
|
| 45 |
void die(){ |
| 46 |
exit(1); |
| 47 |
} |
| 48 |
|
| 49 |
void diskStats(){ |
| 50 |
struct statfs *mp; |
| 51 |
int nummnt; |
| 52 |
int counter=0; |
| 53 |
char *mntpnt; |
| 54 |
char *devicename; |
| 55 |
|
| 56 |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
| 57 |
if (nummnt<=0){ |
| 58 |
errf("Failed to get disk stats (%m)"); |
| 59 |
die(); |
| 60 |
} |
| 61 |
|
| 62 |
mntpnt=malloc(MNAMELEN); |
| 63 |
devicename=malloc(MNAMELEN); |
| 64 |
|
| 65 |
for(;counter<nummnt;counter++){ |
| 66 |
strncpy(mntpnt, mp->f_mntonname ,MNAMELEN); |
| 67 |
strncpy(devicename, mp->f_mntfromname ,MNAMELEN); |
| 68 |
printf("packet.disk.p%d.attributes.mount %s\n", counter, mntpnt); |
| 69 |
printf("packet.disk.p%d.attributes.name %s\n", counter, devicename); |
| 70 |
printf("packet.disk.p%d.attributes.kbytes %lu\n",counter, ((mp->f_bsize/1024) * mp->f_blocks)); |
| 71 |
printf("packet.disk.p%d.attributes.used %lu\n",counter, (((mp->f_bsize/1024) * mp->f_blocks) -((mp->f_bsize/1024) * mp->f_bfree))); |
| 72 |
printf("packet.disk.p%d.attributes.avail %lu\n",counter, (mp->f_bsize/1024) * mp->f_bavail); |
| 73 |
printf("packet.disk.p%d.attributes.totalinodes %lu\n", counter, mp->f_files); |
| 74 |
printf("packet.disk.p%d.attributes.freeinodes %lu\n",counter, mp->f_ffree); |
| 75 |
|
| 76 |
mp++; |
| 77 |
} |
| 78 |
|
| 79 |
|
| 80 |
} |
| 81 |
|
| 82 |
void osStats(){ |
| 83 |
struct utsname os; |
| 84 |
|
| 85 |
if((uname(&os)) != 0){ |
| 86 |
errf("Failed to get os stats (%m)"); |
| 87 |
die(); |
| 88 |
} |
| 89 |
|
| 90 |
printf("packet.os.name %s\n", os.sysname); |
| 91 |
printf("packet.os.release %s\n" , os.release); |
| 92 |
printf("packet.os.version %s\n", os.version); |
| 93 |
printf("packet.os.sysname %s\n" , os.nodename); |
| 94 |
printf("packet.os.platform %s\n", os.machine); |
| 95 |
|
| 96 |
} |
| 97 |
void loadStats(){ |
| 98 |
double loadav[3]; |
| 99 |
|
| 100 |
if((getloadavg(loadav,3)) == -1){ |
| 101 |
errf("Failed to get load averages (%m)"); |
| 102 |
die(); |
| 103 |
} |
| 104 |
|
| 105 |
printf("packet.load.load1 %.2f\n",loadav[0]); |
| 106 |
printf("packet.load.load5 %.2f\n",loadav[1]); |
| 107 |
printf("packet.load.load15 %.2f\n",loadav[2]); |
| 108 |
} |
| 109 |
|
| 110 |
void userStats(){ |
| 111 |
struct utmp users; |
| 112 |
FILE *f; |
| 113 |
int numusers=0; |
| 114 |
|
| 115 |
if ((f=fopen(_PATH_UTMP, "r")) == NULL){ |
| 116 |
errf("Failed to get user stats(%m)"); |
| 117 |
die(); |
| 118 |
} |
| 119 |
|
| 120 |
printf("packet.users.list"); |
| 121 |
|
| 122 |
while((fread(&users, sizeof(users),1,f)) != 0){ |
| 123 |
if (users.ut_name[0] == '\0') continue; |
| 124 |
printf(" %s",users.ut_name); |
| 125 |
numusers++; |
| 126 |
} |
| 127 |
|
| 128 |
printf("\npacket.users.count %d\n",numusers); |
| 129 |
|
| 130 |
} |
| 131 |
|
| 132 |
void systemStats(){ |
| 133 |
|
| 134 |
long cp_time[CPUSTATES]; |
| 135 |
long total, user, idle, kernel, nice; |
| 136 |
long totalmem, freemem, swaptotal, swapused; |
| 137 |
float stat; |
| 138 |
|
| 139 |
static char *uptimename = "kern.boottime"; |
| 140 |
static char *cpname = "kern.cp_time"; |
| 141 |
static char *tmemname = "hw.physmem"; |
| 142 |
static char *fmemname = "vm.stats.vm.v_free_count"; |
| 143 |
int pagesize=-1; |
| 144 |
size_t size; |
| 145 |
|
| 146 |
kvm_t *kvmd = NULL; |
| 147 |
struct kvm_swap swapinfo; |
| 148 |
char errbuf[_POSIX2_LINE_MAX]; |
| 149 |
time_t current; |
| 150 |
struct timeval uptime; |
| 151 |
|
| 152 |
time(¤t); |
| 153 |
|
| 154 |
if (sysctlbyname(uptimename, NULL, &size, NULL, NULL) < 0){ |
| 155 |
errf("sysctlbyname (%m)"); |
| 156 |
die(); |
| 157 |
} |
| 158 |
|
| 159 |
|
| 160 |
if (sysctlbyname(uptimename, &uptime, &size, NULL, NULL) < 0){ |
| 161 |
errf("Failed to get cpu stats (%m)"); |
| 162 |
die(); |
| 163 |
} |
| 164 |
|
| 165 |
printf("packet.os.uptime %ld\n",(current-(uptime.tv_sec))); |
| 166 |
|
| 167 |
|
| 168 |
if (sysctlbyname(cpname, NULL, &size, NULL, NULL) < 0){ |
| 169 |
errf("sysctlbyname (%m)"); |
| 170 |
die(); |
| 171 |
} |
| 172 |
|
| 173 |
if (size != sizeof cp_time){ |
| 174 |
errf("bailing out, trying to write into something to small"); |
| 175 |
die(); |
| 176 |
} |
| 177 |
|
| 178 |
if (sysctlbyname(cpname, &cp_time, &size, NULL, NULL) < 0){ |
| 179 |
errf("Failed to get cpu stats (%m)"); |
| 180 |
die(); |
| 181 |
} |
| 182 |
|
| 183 |
user=cp_time[CP_USER]; |
| 184 |
nice=cp_time[CP_NICE]; |
| 185 |
kernel=cp_time[CP_SYS]; |
| 186 |
idle=cp_time[CP_IDLE]; |
| 187 |
|
| 188 |
sleep(1); |
| 189 |
|
| 190 |
if (sysctlbyname(cpname, &cp_time, &size, NULL, NULL) < 0){ |
| 191 |
errf("Failed to get cpu stats (%m)"); |
| 192 |
die(); |
| 193 |
} |
| 194 |
|
| 195 |
user=cp_time[CP_USER]-user; |
| 196 |
nice=cp_time[CP_NICE]-nice; |
| 197 |
kernel=cp_time[CP_SYS]-kernel; |
| 198 |
idle=cp_time[CP_IDLE]-idle; |
| 199 |
|
| 200 |
total=user+nice+kernel+idle; |
| 201 |
stat=((float)(user+nice)/(float)total)*100.0; |
| 202 |
printf("packet.cpu.user %.2f\n",stat); |
| 203 |
stat=((float)(kernel)/(float)total)*100.0; |
| 204 |
printf("packet.cpu.kernel %.2f\n",stat); |
| 205 |
stat=((float)(idle)/(float)total)*100.0; |
| 206 |
printf("packet.cpu.idle %.2f\n",stat); |
| 207 |
|
| 208 |
/* Cos i-scream's expects this to be sent :/ */ |
| 209 |
printf("packet.cpu.iowait 0\n"); |
| 210 |
printf("packet.cpu.swap 0\n"); |
| 211 |
|
| 212 |
/* MEMORY STATS */ |
| 213 |
pagesize=getpagesize(); |
| 214 |
if (pagesize==-1){ |
| 215 |
errf("Failed to get pagesize (%m)"); |
| 216 |
die(); |
| 217 |
} |
| 218 |
|
| 219 |
if (sysctlbyname(tmemname, NULL, &size, NULL, NULL) < 0){ |
| 220 |
errf("sysctlbyname (%m)"); |
| 221 |
die(); |
| 222 |
} |
| 223 |
|
| 224 |
if (sysctlbyname(tmemname, &totalmem, &size, NULL, NULL) < 0){ |
| 225 |
errf("Failed to get memory stats (%m)"); |
| 226 |
die(); |
| 227 |
} |
| 228 |
|
| 229 |
if (sysctlbyname(fmemname, NULL, &size, NULL, NULL) < 0){ |
| 230 |
errf("sysctlbyname (%m)"); |
| 231 |
die(); |
| 232 |
} |
| 233 |
|
| 234 |
if (sysctlbyname(fmemname, &freemem, &size, NULL, NULL) < 0){ |
| 235 |
errf("Failed to get memory stats (%m)"); |
| 236 |
die(); |
| 237 |
} |
| 238 |
|
| 239 |
totalmem/=(1024*1024); |
| 240 |
freemem=(freemem*pagesize)/(1024*1024); |
| 241 |
|
| 242 |
printf("packet.memory.total %ld\n", totalmem); |
| 243 |
printf("packet.memory.free %ld\n", freemem); |
| 244 |
printf("packet.memory.used %ld\n", (totalmem-freemem)); |
| 245 |
|
| 246 |
/* Swap stats */ |
| 247 |
|
| 248 |
/* Get sufficent privilages to do this */ |
| 249 |
if (gid!=egid){ |
| 250 |
/* Means we are setgid something, hopefully kmem :) */ |
| 251 |
if ((setegid(egid)) != 0){ |
| 252 |
errf("Failed to gain sufficent privilages (%m)"); |
| 253 |
die(); |
| 254 |
} |
| 255 |
} |
| 256 |
|
| 257 |
kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf); |
| 258 |
if (kvmd == NULL){ |
| 259 |
errf("Failed to open kvm info to get swap stats (%m)"); |
| 260 |
die(); |
| 261 |
} |
| 262 |
|
| 263 |
/* Lose our setgid'ness */ |
| 264 |
|
| 265 |
if ((setegid(gid)) != 0){ |
| 266 |
errf("Failed to release permissions, refusing to keep setgid. (%m)"); |
| 267 |
die(); |
| 268 |
} |
| 269 |
|
| 270 |
|
| 271 |
/* ok, just for proof of concept atm, ideally this will need to handle more |
| 272 |
than one swap device */ |
| 273 |
|
| 274 |
if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){ |
| 275 |
errf("Failed to get swap info (%m)"); |
| 276 |
die(); |
| 277 |
} |
| 278 |
|
| 279 |
swaptotal=((((long)swapinfo.ksw_total)*pagesize)/1024)/1024; |
| 280 |
swapused=((((long)swapinfo.ksw_used)*pagesize)/1024)/1024; |
| 281 |
|
| 282 |
printf("packet.swap.total %ld\n" , swaptotal); |
| 283 |
printf("packet.swap.used %ld\n", swapused); |
| 284 |
printf("packet.swap.free %lu\n", (swaptotal-swapused)); |
| 285 |
|
| 286 |
} |
| 287 |
|
| 288 |
void processStats(){ |
| 289 |
int sleeping=-1; |
| 290 |
int zombie=0; |
| 291 |
int stopped=0; |
| 292 |
int running=0; |
| 293 |
char *line; |
| 294 |
char *line_p; |
| 295 |
|
| 296 |
FILE *f; |
| 297 |
|
| 298 |
if((f=popen("/bin/ps -ax" , "r")) == NULL) { |
| 299 |
errf("Failed to get process stats (%m)"); |
| 300 |
die(); |
| 301 |
} |
| 302 |
|
| 303 |
while((line=fpgetline(f)) != NULL) { |
| 304 |
line_p=line; |
| 305 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 306 |
line_p=strchr(line_p, ' '); |
| 307 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 308 |
line_p=strchr(line_p, ' '); |
| 309 |
for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
| 310 |
if (line_p==NULL) abort(); |
| 311 |
|
| 312 |
if (*line_p=='S') sleeping++; |
| 313 |
if (*line_p=='I') sleeping++; |
| 314 |
if (*line_p=='R') running++; |
| 315 |
if (*line_p=='D') running++; |
| 316 |
if (*line_p=='Z') zombie++; |
| 317 |
if (*line_p=='T') stopped++; |
| 318 |
if (*line_p=='J') running++; |
| 319 |
|
| 320 |
} |
| 321 |
|
| 322 |
if((pclose(f)) != 0) { |
| 323 |
errf("Failed to close process stats (%m)"); |
| 324 |
die(); |
| 325 |
} |
| 326 |
|
| 327 |
printf("packet.processes.sleeping %d\n",sleeping); |
| 328 |
printf("packet.processes.cpu %d\n",running); |
| 329 |
printf("packet.processes.zombie %d\n",zombie); |
| 330 |
printf("packet.processes.stopped %d\n", stopped); |
| 331 |
printf("packet.processes.total %d\n", (sleeping+running+zombie+stopped)); |
| 332 |
|
| 333 |
|
| 334 |
} |
| 335 |
|
| 336 |
|
| 337 |
int main(){ |
| 338 |
uid=getuid(); |
| 339 |
euid=geteuid(); |
| 340 |
gid=getgid(); |
| 341 |
egid=getegid(); |
| 342 |
|
| 343 |
/* We dont want to run with more permissions than we need, until we need em */ |
| 344 |
if ((setegid(gid)) != 0){ |
| 345 |
errf("Failed to release permissions, refusing to keep setgid. (%m)"); |
| 346 |
die(); |
| 347 |
} |
| 348 |
|
| 349 |
if ((seteuid(uid)) != 0){ |
| 350 |
errf("Failed to release permissions, refusing to keep setuid. (%m)"); |
| 351 |
die(); |
| 352 |
} |
| 353 |
|
| 354 |
diskStats(); |
| 355 |
osStats(); |
| 356 |
loadStats(); |
| 357 |
userStats(); |
| 358 |
systemStats(); |
| 359 |
processStats(); |
| 360 |
exit(0); |
| 361 |
} |
