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/*
* Copyright (C) 2000-2006 SWsoft. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <unistd.h>
#include <sys/mount.h>
#include <sys/vfs.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "types.h"
#include "fs.h"
#include "logger.h"
#include "vzerror.h"
/* Check is fs mounted
* return: 1 - yes
* 0 - no
* < 0 - error
*/
int vz_fs_is_mounted(char *root)
{
FILE *fp;
char buf[512];
char mnt[512];
char *path;
int ret = 0;
if ((fp = fopen("/proc/mounts", "r")) == NULL) {
logger(-1, errno, "unable to open /proc/mounts");
return -1;
}
path = realpath(root, NULL);
if (path == NULL)
path = strdup(root);
while (!feof(fp)) {
if (fgets(buf, sizeof(buf), fp) == NULL)
break;
if (sscanf(buf, "%*[^ ] %s ", mnt) != 1)
continue;
if (!strcmp(mnt, path)) {
ret = 1;
break;
}
}
free(path);
fclose(fp);
return ret;
}
static char *fs_name = "simfs";
const char *vz_fs_get_name()
{
return fs_name;
}
int vz_mount(fs_param *fs, int remount)
{
int mntopt = 0;
if (fs->noatime == YES)
mntopt |= MS_NOATIME;
if (remount)
mntopt |= MS_REMOUNT;
logger(2, 0, "Mounting root: %s %s", fs->root, fs->private);
if (mount(fs->private, fs->root, "simfs", mntopt,
remount ? "" : fs->private) < 0)
{
logger(-1, errno, "Can't mount: %s %s", fs->root, fs->private);
return VZ_FS_CANTMOUNT;
}
return 0;
}