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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org.uk |
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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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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include <stdlib.h> |
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#include <string.h> |
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#include "statgrab.h" |
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|
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#ifdef SOLARIS |
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#include <stdio.h> |
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#include <sys/mnttab.h> |
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#include <sys/statvfs.h> |
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#include <kstat.h> |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
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#endif |
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|
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#ifdef LINUX |
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#include <stdio.h> |
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#include <sys/vfs.h> |
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#include <mntent.h> |
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#define VALID_FS_TYPES {"ext2", "ext3", "xfs", "reiserfs", "vfat", "tmpfs"} |
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#endif |
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|
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#define START_VAL 1 |
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|
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char *copy_string(char *orig_ptr, const char *newtext){ |
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|
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/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */ |
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orig_ptr=realloc(orig_ptr, (1+strlen(newtext))); |
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if(orig_ptr==NULL){ |
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return NULL; |
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} |
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strcpy(orig_ptr, newtext); |
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|
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return orig_ptr; |
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} |
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|
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|
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void init_disk_stat(int start, int end, disk_stat_t *disk_stats){ |
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|
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for(disk_stats+=start; start<=end; start++){ |
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disk_stats->device_name=NULL; |
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disk_stats->fs_type=NULL; |
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disk_stats->mnt_point=NULL; |
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|
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disk_stats++; |
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} |
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} |
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|
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disk_stat_t *get_disk_stats(int *entries){ |
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|
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static disk_stat_t *disk_stats; |
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static int watermark=-1; |
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|
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char *fs_types[] = VALID_FS_TYPES; |
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int x, valid_type; |
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int num_disks=0; |
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FILE *f; |
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|
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disk_stat_t *disk_ptr; |
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|
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#ifdef SOLARIS |
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struct mnttab *mp; |
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struct statvfs fs; |
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#endif |
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#ifdef LINUX |
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struct mntent *mp; |
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struct statfs fs; |
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#endif |
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|
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if(watermark==-1){ |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
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if(disk_stats==NULL){ |
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return NULL; |
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} |
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watermark=START_VAL; |
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init_disk_stat(0, watermark-1, disk_stats); |
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} |
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#ifdef LINUX |
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if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
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return NULL; |
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} |
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|
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while((mp=getmntent(f))){ |
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if((statfs(mp->mnt_dir, &fs)) !=0){ |
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continue; |
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} |
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|
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valid_type=0; |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
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if(strcmp(mp->mnt_type, fs_types[x]) ==0){ |
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valid_type=1; |
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break; |
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} |
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} |
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#endif |
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|
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#ifdef SOLARIS |
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if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
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return NULL; |
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} |
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while((getmntent(f, &mp)) == 0){ |
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if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
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continue; |
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} |
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valid_type=0; |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
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if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
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valid_type=1; |
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break; |
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} |
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} |
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#endif |
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|
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if(valid_type){ |
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if(num_disks>watermark-1){ |
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disk_ptr=disk_stats; |
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if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
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disk_stats=disk_ptr; |
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return NULL; |
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} |
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|
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watermark=watermark*2; |
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init_disk_stat(num_disks, watermark-1, disk_stats); |
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} |
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|
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disk_ptr=disk_stats+num_disks; |
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#ifdef LINUX |
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if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
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return NULL; |
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} |
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disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
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disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
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disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
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|
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disk_ptr->total_inodes=(long long)fs.f_files; |
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disk_ptr->free_inodes=(long long)fs.f_ffree; |
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/* Linux doesn't have a "available" inodes */ |
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disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
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#endif |
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|
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#ifdef SOLARIS |
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/* Memory leak in event of realloc failing */ |
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/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
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* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
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* be upwards of a k each |
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*/ |
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if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
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return NULL; |
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} |
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|
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disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
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disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
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disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_frsize * (long long)fs.f_bfree); |
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|
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disk_ptr->total_inodes=(long long)fs.f_files; |
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disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
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disk_ptr->free_inodes=(long long)fs.f_favail; |
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#endif |
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num_disks++; |
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} |
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} |
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|
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*entries=num_disks; |
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|
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/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
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fclose(f); |
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|
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return disk_stats; |
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|
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} |
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#ifdef SOLARIS |
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void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
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|
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for(diskio_stats+=start; start<end; start++){ |
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diskio_stats->disk_name=NULL; |
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|
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diskio_stats++; |
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} |
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} |
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|
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diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
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|
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if(diskio_stats==NULL){ |
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|
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if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
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return NULL; |
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} |
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diskio_stat_init(0, needed_entries, diskio_stats); |
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*cur_entries=needed_entries; |
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|
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return diskio_stats; |
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} |
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|
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|
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if(*cur_entries<needed_entries){ |
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diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
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if(diskio_stats==NULL){ |
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return NULL; |
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} |
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diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
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*cur_entries=needed_entries; |
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} |
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|
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return diskio_stats; |
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} |
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|
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static diskio_stat_t *diskio_stats=NULL; |
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static int num_diskio=0; |
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|
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diskio_stat_t *get_diskio_stats(int *entries){ |
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|
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static int sizeof_diskio_stats=0; |
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diskio_stat_t *diskio_stats_ptr; |
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|
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kstat_ctl_t *kc; |
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kstat_t *ksp; |
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kstat_io_t kios; |
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|
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if ((kc = kstat_open()) == NULL) { |
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return NULL; |
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} |
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|
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num_diskio=0; |
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|
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for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
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if (!strcmp(ksp->ks_class, "disk")) { |
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|
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if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
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/* We dont want metadevices appearins as num_diskio */ |
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if(strcmp(ksp->ks_module, "md")==0) continue; |
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if((kstat_read(kc, ksp, &kios))==-1){ |
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} |
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|
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if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
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kstat_close(kc); |
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return NULL; |
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} |
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diskio_stats_ptr=diskio_stats+num_diskio; |
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|
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diskio_stats_ptr->read_bytes=kios.nread; |
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|
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diskio_stats_ptr->write_bytes=kios.nwritten; |
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|
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if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
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|
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diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
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num_diskio++; |
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} |
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} |
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|
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kstat_close(kc); |
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|
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*entries=num_diskio; |
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|
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return diskio_stats; |
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} |
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|
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diskio_stat_t *get_diskio_stats_diff(int *entries){ |
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static diskio_stat_t *diskio_stats_diff=NULL; |
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static int sizeof_diskio_stats_diff=0; |
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diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
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int disks, x, y; |
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|
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if(diskio_stats==NULL){ |
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diskio_stats_ptr=get_diskio_stats(&disks); |
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*entries=disks; |
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return diskio_stats_ptr; |
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} |
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|
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diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
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if(diskio_stats_diff==NULL){ |
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return NULL; |
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} |
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|
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diskio_stats_diff_ptr=diskio_stats_diff; |
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diskio_stats_ptr=diskio_stats; |
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|
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for(disks=0;disks<num_diskio;disks++){ |
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if(diskio_stats_diff_ptr->disk_name!=NULL){ |
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free(diskio_stats_diff_ptr->disk_name); |
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} |
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diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
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diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
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diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
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diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
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|
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diskio_stats_diff_ptr++; |
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diskio_stats_ptr++; |
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} |
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|
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diskio_stats_ptr=get_diskio_stats(&disks); |
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diskio_stats_diff_ptr=diskio_stats_diff; |
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|
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for(x=0;x<sizeof_diskio_stats_diff;x++){ |
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|
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if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
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diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
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diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
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diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
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}else{ |
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diskio_stats_ptr=diskio_stats; |
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for(y=0;y<disks;y++){ |
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if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
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diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
| 342 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
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diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
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|
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break; |
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} |
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|
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diskio_stats_ptr++; |
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} |
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} |
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|
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diskio_stats_ptr++; |
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diskio_stats_diff_ptr++; |
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|
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} |
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|
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*entries=sizeof_diskio_stats_diff; |
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return diskio_stats_diff; |
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} |
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#endif |
