| 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 |
#ifdef HAVE_CONFIG_H |
| 22 |
#include "config.h" |
| 23 |
#endif |
| 24 |
|
| 25 |
#include <stdlib.h> |
| 26 |
#include <string.h> |
| 27 |
#include "statgrab.h" |
| 28 |
|
| 29 |
#ifdef SOLARIS |
| 30 |
#include <stdio.h> |
| 31 |
#include <sys/mnttab.h> |
| 32 |
#include <sys/statvfs.h> |
| 33 |
#include <kstat.h> |
| 34 |
#define VALID_FS_TYPES {"ufs", "tmpfs"} |
| 35 |
#endif |
| 36 |
|
| 37 |
#ifdef LINUX |
| 38 |
#include <stdio.h> |
| 39 |
#include <sys/vfs.h> |
| 40 |
#include <mntent.h> |
| 41 |
#include "tools.h" |
| 42 |
#define VALID_FS_TYPES {"ext2", "ext3", "xfs", "reiserfs", "vfat", "tmpfs"} |
| 43 |
#endif |
| 44 |
|
| 45 |
#define START_VAL 1 |
| 46 |
|
| 47 |
char *copy_string(char *orig_ptr, const char *newtext){ |
| 48 |
|
| 49 |
/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */ |
| 50 |
orig_ptr=realloc(orig_ptr, (1+strlen(newtext))); |
| 51 |
if(orig_ptr==NULL){ |
| 52 |
return NULL; |
| 53 |
} |
| 54 |
strcpy(orig_ptr, newtext); |
| 55 |
|
| 56 |
return orig_ptr; |
| 57 |
} |
| 58 |
|
| 59 |
|
| 60 |
void init_disk_stat(int start, int end, disk_stat_t *disk_stats){ |
| 61 |
|
| 62 |
for(disk_stats+=start; start<=end; start++){ |
| 63 |
disk_stats->device_name=NULL; |
| 64 |
disk_stats->fs_type=NULL; |
| 65 |
disk_stats->mnt_point=NULL; |
| 66 |
|
| 67 |
disk_stats++; |
| 68 |
} |
| 69 |
} |
| 70 |
|
| 71 |
disk_stat_t *get_disk_stats(int *entries){ |
| 72 |
|
| 73 |
static disk_stat_t *disk_stats; |
| 74 |
static int watermark=-1; |
| 75 |
|
| 76 |
char *fs_types[] = VALID_FS_TYPES; |
| 77 |
int x, valid_type; |
| 78 |
int num_disks=0; |
| 79 |
FILE *f; |
| 80 |
|
| 81 |
disk_stat_t *disk_ptr; |
| 82 |
|
| 83 |
#ifdef SOLARIS |
| 84 |
struct mnttab mp; |
| 85 |
struct statvfs fs; |
| 86 |
#endif |
| 87 |
#ifdef LINUX |
| 88 |
struct mntent *mp; |
| 89 |
struct statfs fs; |
| 90 |
#endif |
| 91 |
|
| 92 |
if(watermark==-1){ |
| 93 |
disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
| 94 |
if(disk_stats==NULL){ |
| 95 |
return NULL; |
| 96 |
} |
| 97 |
watermark=START_VAL; |
| 98 |
init_disk_stat(0, watermark-1, disk_stats); |
| 99 |
} |
| 100 |
#ifdef LINUX |
| 101 |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
| 102 |
return NULL; |
| 103 |
} |
| 104 |
|
| 105 |
while((mp=getmntent(f))){ |
| 106 |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
| 107 |
continue; |
| 108 |
} |
| 109 |
|
| 110 |
valid_type=0; |
| 111 |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
| 112 |
if(strcmp(mp->mnt_type, fs_types[x]) ==0){ |
| 113 |
valid_type=1; |
| 114 |
break; |
| 115 |
} |
| 116 |
} |
| 117 |
#endif |
| 118 |
|
| 119 |
#ifdef SOLARIS |
| 120 |
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
| 121 |
return NULL; |
| 122 |
} |
| 123 |
while((getmntent(f, &mp)) == 0){ |
| 124 |
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
| 125 |
continue; |
| 126 |
} |
| 127 |
valid_type=0; |
| 128 |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
| 129 |
if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
| 130 |
valid_type=1; |
| 131 |
break; |
| 132 |
} |
| 133 |
} |
| 134 |
#endif |
| 135 |
|
| 136 |
if(valid_type){ |
| 137 |
if(num_disks>watermark-1){ |
| 138 |
disk_ptr=disk_stats; |
| 139 |
if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
| 140 |
disk_stats=disk_ptr; |
| 141 |
return NULL; |
| 142 |
} |
| 143 |
|
| 144 |
watermark=watermark*2; |
| 145 |
init_disk_stat(num_disks, watermark-1, disk_stats); |
| 146 |
} |
| 147 |
|
| 148 |
disk_ptr=disk_stats+num_disks; |
| 149 |
#ifdef LINUX |
| 150 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
| 151 |
return NULL; |
| 152 |
} |
| 153 |
|
| 154 |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
| 155 |
return NULL; |
| 156 |
} |
| 157 |
|
| 158 |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
| 159 |
return NULL; |
| 160 |
} |
| 161 |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
| 162 |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
| 163 |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
| 164 |
|
| 165 |
disk_ptr->total_inodes=(long long)fs.f_files; |
| 166 |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
| 167 |
/* Linux doesn't have a "available" inodes */ |
| 168 |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
| 169 |
#endif |
| 170 |
|
| 171 |
#ifdef SOLARIS |
| 172 |
/* Memory leak in event of realloc failing */ |
| 173 |
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
| 174 |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
| 175 |
* be upwards of a k each |
| 176 |
*/ |
| 177 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
| 178 |
return NULL; |
| 179 |
} |
| 180 |
|
| 181 |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
| 182 |
return NULL; |
| 183 |
} |
| 184 |
|
| 185 |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
| 186 |
return NULL; |
| 187 |
} |
| 188 |
|
| 189 |
disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
| 190 |
disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
| 191 |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_frsize * (long long)fs.f_bfree); |
| 192 |
|
| 193 |
disk_ptr->total_inodes=(long long)fs.f_files; |
| 194 |
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
| 195 |
disk_ptr->free_inodes=(long long)fs.f_favail; |
| 196 |
#endif |
| 197 |
num_disks++; |
| 198 |
} |
| 199 |
} |
| 200 |
|
| 201 |
*entries=num_disks; |
| 202 |
|
| 203 |
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
| 204 |
fclose(f); |
| 205 |
|
| 206 |
return disk_stats; |
| 207 |
|
| 208 |
} |
| 209 |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
| 210 |
|
| 211 |
for(diskio_stats+=start; start<end; start++){ |
| 212 |
diskio_stats->disk_name=NULL; |
| 213 |
|
| 214 |
diskio_stats++; |
| 215 |
} |
| 216 |
} |
| 217 |
|
| 218 |
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
| 219 |
|
| 220 |
if(diskio_stats==NULL){ |
| 221 |
|
| 222 |
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
| 223 |
return NULL; |
| 224 |
} |
| 225 |
diskio_stat_init(0, needed_entries, diskio_stats); |
| 226 |
*cur_entries=needed_entries; |
| 227 |
|
| 228 |
return diskio_stats; |
| 229 |
} |
| 230 |
|
| 231 |
|
| 232 |
if(*cur_entries<needed_entries){ |
| 233 |
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
| 234 |
if(diskio_stats==NULL){ |
| 235 |
return NULL; |
| 236 |
} |
| 237 |
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
| 238 |
*cur_entries=needed_entries; |
| 239 |
} |
| 240 |
|
| 241 |
return diskio_stats; |
| 242 |
} |
| 243 |
|
| 244 |
static diskio_stat_t *diskio_stats=NULL; |
| 245 |
static int num_diskio=0; |
| 246 |
|
| 247 |
diskio_stat_t *get_diskio_stats(int *entries){ |
| 248 |
|
| 249 |
static int sizeof_diskio_stats=0; |
| 250 |
diskio_stat_t *diskio_stats_ptr; |
| 251 |
|
| 252 |
#ifdef SOLARIS |
| 253 |
kstat_ctl_t *kc; |
| 254 |
kstat_t *ksp; |
| 255 |
kstat_io_t kios; |
| 256 |
#endif |
| 257 |
#ifdef LINUX |
| 258 |
FILE *f; |
| 259 |
char *line_ptr; |
| 260 |
int major, minor; |
| 261 |
char dev_letter; |
| 262 |
#endif |
| 263 |
num_diskio=0; |
| 264 |
|
| 265 |
#ifdef SOLARIS |
| 266 |
if ((kc = kstat_open()) == NULL) { |
| 267 |
return NULL; |
| 268 |
} |
| 269 |
|
| 270 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
| 271 |
if (!strcmp(ksp->ks_class, "disk")) { |
| 272 |
|
| 273 |
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
| 274 |
/* We dont want metadevices appearins as num_diskio */ |
| 275 |
if(strcmp(ksp->ks_module, "md")==0) continue; |
| 276 |
if((kstat_read(kc, ksp, &kios))==-1){ |
| 277 |
} |
| 278 |
|
| 279 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
| 280 |
kstat_close(kc); |
| 281 |
return NULL; |
| 282 |
} |
| 283 |
diskio_stats_ptr=diskio_stats+num_diskio; |
| 284 |
|
| 285 |
diskio_stats_ptr->read_bytes=kios.nread; |
| 286 |
|
| 287 |
diskio_stats_ptr->write_bytes=kios.nwritten; |
| 288 |
|
| 289 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
| 290 |
|
| 291 |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
| 292 |
diskio_stats_ptr->systime=time(NULL); |
| 293 |
num_diskio++; |
| 294 |
} |
| 295 |
} |
| 296 |
|
| 297 |
kstat_close(kc); |
| 298 |
#endif |
| 299 |
|
| 300 |
#ifdef LINUX |
| 301 |
f=fopen("/proc/stat", "r"); |
| 302 |
if(f==NULL){ |
| 303 |
*entries=0; |
| 304 |
fclose(f); |
| 305 |
return NULL; |
| 306 |
} |
| 307 |
if((line_ptr=f_read_line(f, "disk_io:"))==NULL){ |
| 308 |
*entries=0; |
| 309 |
fclose(f); |
| 310 |
return NULL; |
| 311 |
} |
| 312 |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
| 313 |
line_ptr++; |
| 314 |
if(*line_ptr=='\0'){ |
| 315 |
break; |
| 316 |
} |
| 317 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
| 318 |
fclose(f); |
| 319 |
*entries=0; |
| 320 |
return NULL; |
| 321 |
} |
| 322 |
diskio_stats_ptr=diskio_stats+num_diskio; |
| 323 |
|
| 324 |
|
| 325 |
if((sscanf(line_ptr, "(%d,%d):(%*d, %*d, %lld, %*d, %lld)", \ |
| 326 |
&major, \ |
| 327 |
&minor, \ |
| 328 |
&diskio_stats_ptr->read_bytes, \ |
| 329 |
&diskio_stats_ptr->write_bytes))!=4) { |
| 330 |
continue; |
| 331 |
} |
| 332 |
|
| 333 |
/* We read the number of blocks. Blocks are stored in 512 bytes */ |
| 334 |
diskio_stats_ptr->read_bytes=diskio_stats_ptr->read_bytes*512; |
| 335 |
diskio_stats_ptr->write_bytes=diskio_stats_ptr->write_bytes*512; |
| 336 |
|
| 337 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
| 338 |
|
| 339 |
switch(major){ |
| 340 |
case 2: |
| 341 |
if(minor==0){ |
| 342 |
diskio_stats_ptr->disk_name=strdup("fd0"); |
| 343 |
} |
| 344 |
break; |
| 345 |
|
| 346 |
case 3: |
| 347 |
if(minor==0){ |
| 348 |
diskio_stats_ptr->disk_name=strdup("hda"); |
| 349 |
}else{ |
| 350 |
diskio_stats_ptr->disk_name=strdup("hdb"); |
| 351 |
} |
| 352 |
break; |
| 353 |
|
| 354 |
case 22: |
| 355 |
if(minor==0){ |
| 356 |
diskio_stats_ptr->disk_name=strdup("hdc"); |
| 357 |
}else{ |
| 358 |
diskio_stats_ptr->disk_name=strdup("hdd"); |
| 359 |
} |
| 360 |
break; |
| 361 |
case 8: |
| 362 |
dev_letter='a'+(minor/16); |
| 363 |
diskio_stats_ptr->disk_name=malloc(4); |
| 364 |
snprintf(diskio_stats_ptr->disk_name, 4, "sd%c", dev_letter); |
| 365 |
break; |
| 366 |
default: |
| 367 |
/* I have no idea what it is then :) */ |
| 368 |
diskio_stats_ptr->disk_name=malloc(16); |
| 369 |
snprintf(diskio_stats_ptr->disk_name, 16, "%d %d", major, minor); |
| 370 |
break; |
| 371 |
} |
| 372 |
|
| 373 |
diskio_stats_ptr->systime=time(NULL); |
| 374 |
num_diskio++; |
| 375 |
} |
| 376 |
|
| 377 |
#endif |
| 378 |
*entries=num_diskio; |
| 379 |
|
| 380 |
return diskio_stats; |
| 381 |
} |
| 382 |
|
| 383 |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
| 384 |
static diskio_stat_t *diskio_stats_diff=NULL; |
| 385 |
static int sizeof_diskio_stats_diff=0; |
| 386 |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
| 387 |
int disks, x, y; |
| 388 |
|
| 389 |
if(diskio_stats==NULL){ |
| 390 |
diskio_stats_ptr=get_diskio_stats(&disks); |
| 391 |
*entries=disks; |
| 392 |
return diskio_stats_ptr; |
| 393 |
} |
| 394 |
|
| 395 |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
| 396 |
if(diskio_stats_diff==NULL){ |
| 397 |
return NULL; |
| 398 |
} |
| 399 |
|
| 400 |
diskio_stats_diff_ptr=diskio_stats_diff; |
| 401 |
diskio_stats_ptr=diskio_stats; |
| 402 |
|
| 403 |
for(disks=0;disks<num_diskio;disks++){ |
| 404 |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
| 405 |
free(diskio_stats_diff_ptr->disk_name); |
| 406 |
} |
| 407 |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
| 408 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
| 409 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
| 410 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
| 411 |
|
| 412 |
diskio_stats_diff_ptr++; |
| 413 |
diskio_stats_ptr++; |
| 414 |
} |
| 415 |
|
| 416 |
diskio_stats_ptr=get_diskio_stats(&disks); |
| 417 |
diskio_stats_diff_ptr=diskio_stats_diff; |
| 418 |
|
| 419 |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
| 420 |
|
| 421 |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
| 422 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
| 423 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
| 424 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
| 425 |
}else{ |
| 426 |
diskio_stats_ptr=diskio_stats; |
| 427 |
for(y=0;y<disks;y++){ |
| 428 |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
| 429 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
| 430 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
| 431 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
| 432 |
|
| 433 |
break; |
| 434 |
} |
| 435 |
|
| 436 |
diskio_stats_ptr++; |
| 437 |
} |
| 438 |
} |
| 439 |
|
| 440 |
diskio_stats_ptr++; |
| 441 |
diskio_stats_diff_ptr++; |
| 442 |
|
| 443 |
} |
| 444 |
|
| 445 |
*entries=sizeof_diskio_stats_diff; |
| 446 |
return diskio_stats_diff; |
| 447 |
} |
