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/******************************************************************************
*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
** Copyright (C) 2004 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
** of the GNU General Public License v.2.
**
*******************************************************************************
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <limits.h>
#include <errno.h>
#define __user
#include <linux/gfs2_ondisk.h>
#include "gfs2_tool.h"
#include "libgfs2.h"
/**
* do_df_one - print out information about one filesystem
* @path: the path to the filesystem
*
*/
static void
do_df_one(char *path)
{
unsigned int percentage;
unsigned int journals;
uint64_t rgrps;
unsigned int flags;
char *value, *fs;
int x, statfs_fd;
struct gfs2_sbd sbd;
char buf[GFS2_DEFAULT_BSIZE], statfs_fn[PATH_MAX];
struct gfs2_statfs_change sc;
memset(&sbd, 0, sizeof(struct gfs2_sbd));
sbd.path_name = path;
check_for_gfs2(&sbd);
fs = mp2fsname(sbd.path_name);
sbd.device_fd = open(sbd.device_name, O_RDONLY);
if (sbd.device_fd < 0)
die("can't open %s: %s\n", path, strerror(errno));
sbd.bsize = GFS2_DEFAULT_BSIZE;
sbd.jsize = GFS2_DEFAULT_JSIZE;
sbd.rgsize = GFS2_DEFAULT_RGSIZE;
sbd.utsize = GFS2_DEFAULT_UTSIZE;
sbd.qcsize = GFS2_DEFAULT_QCSIZE;
osi_list_init(&sbd.rglist);
osi_list_init(&sbd.buf_list);
for (x = 0; x < BUF_HASH_SIZE; x++)
osi_list_init(&sbd.buf_hash[x]);
do_lseek(sbd.device_fd, 0x10 * sbd.bsize);
do_read(sbd.device_fd, buf, sbd.bsize); /* read in the superblock */
compute_constants(&sbd);
gfs2_sb_in(&sbd.sd_sb, buf); /* parse it out into the sb structure */
sbd.master_dir = gfs2_load_inode(&sbd,
sbd.sd_sb.sb_master_dir.no_addr);
gfs2_lookupi(sbd.master_dir, "rindex", 6, &sbd.md.riinode);
gfs2_lookupi(sbd.master_dir, "jindex", 6, &sbd.md.jiinode);
close(sbd.device_fd);
journals = sbd.md.jiinode->i_di.di_entries - 2;
rgrps = sbd.md.riinode->i_di.di_size;
if (rgrps % sizeof(struct gfs2_rindex))
die("bad rindex size\n");
rgrps /= sizeof(struct gfs2_rindex);
printf("%s:\n", path);
printf(" SB lock proto = \"%s\"\n", sbd.sd_sb.sb_lockproto);
printf(" SB lock table = \"%s\"\n", sbd.sd_sb.sb_locktable);
printf(" SB ondisk format = %u\n", sbd.sd_sb.sb_fs_format);
printf(" SB multihost format = %u\n", sbd.sd_sb.sb_multihost_format);
printf(" Block size = %u\n", sbd.sd_sb.sb_bsize);
printf(" Journals = %u\n", journals);
printf(" Resource Groups = %"PRIu64"\n", rgrps);
printf(" Mounted lock proto = \"%s\"\n",
((value = get_sysfs(fs, "args/lockproto"))[0])
? value : sbd.sd_sb.sb_lockproto);
printf(" Mounted lock table = \"%s\"\n",
((value = get_sysfs(fs, "args/locktable"))[0])
? value : sbd.sd_sb.sb_locktable);
printf(" Mounted host data = \"%s\"\n",
get_sysfs(fs, "args/hostdata"));
printf(" Journal number = %s\n", get_sysfs(fs, "lockstruct/jid"));
flags = get_sysfs_uint(fs, "lockstruct/flags");
printf(" Lock module flags = %x", flags);
printf("\n");
printf(" Local flocks = %s\n",
(get_sysfs_uint(fs, "args/localflocks")) ? "TRUE" : "FALSE");
printf(" Local caching = %s\n",
(get_sysfs_uint(fs, "args/localcaching")) ? "TRUE" : "FALSE");
/* Read the master statfs file */
if (!find_gfs2_meta(&sbd))
mount_gfs2_meta(&sbd);
lock_for_admin(&sbd);
sprintf(statfs_fn, "%s/statfs", sbd.metafs_path);
statfs_fd = open(statfs_fn, O_RDONLY);
do_read(statfs_fd, buf, sizeof(struct gfs2_statfs_change));
gfs2_statfs_change_in(&sc, (char *)&buf);
close(statfs_fd);
cleanup_metafs(&sbd);
printf("\n");
printf(" %-15s%-15s%-15s%-15s%-15s\n", "Type", "Total", "Used", "Free", "use%");
printf(" ------------------------------------------------------------------------\n");
percentage = sc.sc_total ?
(100.0 * (sc.sc_total - sc.sc_free)) / sc.sc_total + 0.5 : 0;
printf(" %-15s%-15llu%-15llu%-15llu%u%%\n", "data",
sc.sc_total, sc.sc_total - sc.sc_free, sc.sc_free, percentage);
percentage = (sc.sc_dinodes + sc.sc_free) ?
(100.0 * sc.sc_dinodes / (sc.sc_dinodes + sc.sc_free)) + 0.5 :
0;
printf(" %-15s%-15llu%-15llu%-15llu%u%%\n", "inodes",
sc.sc_dinodes + sc.sc_free, sc.sc_dinodes,
sc.sc_free, percentage);
}
/**
* print_df - print out information about filesystems
* @argc:
* @argv:
*
*/
void
print_df(int argc, char **argv)
{
if (optind < argc) {
char buf[PATH_MAX];
if (!realpath(argv[optind], buf))
die("can't determine real path: %s\n", strerror(errno));
do_df_one(buf);
return;
}
{
FILE *file;
char buf[256], device[256], path[256], type[256];
int first = TRUE;
file = fopen("/proc/mounts", "r");
if (!file)
die("can't open /proc/mounts: %s\n", strerror(errno));
while (fgets(buf, 256, file)) {
if (sscanf(buf, "%s %s %s", device, path, type) != 3)
continue;
if (strcmp(type, "gfs2") != 0)
continue;
if (first)
first = FALSE;
else
printf("\n");
do_df_one(path);
}
fclose(file);
}
}

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