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/*
* Copyright (c) 1980, 1990 Regents of the University of California. All
* rights reserved.
*
* This code is derived from software contributed to Berkeley by Robert Elz at
* The University of Melbourne.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. 2.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution. 3. All advertising
* materials mentioning features or use of this software must display the
* following acknowledgement: This product includes software developed by the
* University of California, Berkeley and its contributors. 4. Neither the
* name of the University nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ident "$Copyright: (c) 1980, 1990 Regents of the University of California $"
#ident "$Copyright: All rights reserved. $"
#ident "$Id: quotaon.c,v 1.13 2002/02/27 21:23:55 jkar8572 Exp $"
/*
* Turn quota on/off for a filesystem.
*/
#include <stdio.h>
#include <errno.h>
#include <getopt.h>
#include <string.h>
#include <stdlib.h>
#include "quotaon.h"
int aflag; /* all file systems */
int gflag; /* operate on group quotas */
int uflag; /* operate on user quotas */
int vflag; /* verbose */
int pflag; /* just print status */
int kqf; /* kernel quota format */
char *progname;
static void usage(void)
{
errstr(_("Usage:\n\t%s [-guvp] [-x state] -a\n\t%s [-guvp] [-x state] filesys ...\n"), progname, progname);
exit(1);
}
/*
* For both VFS quota formats, need to pass in the quota file;
* for XFS quota manager, pass on the -x command line option.
*/
static int newstate(struct mntent *mnt, int offmode, int type, char *extra)
{
int flags, ret = 0;
newstate_t *statefunc;
flags = offmode ? STATEFLAG_OFF : STATEFLAG_ON;
if (vflag > 1)
flags |= STATEFLAG_VERYVERBOSE;
else if (vflag)
flags |= STATEFLAG_VERBOSE;
if (aflag)
flags |= STATEFLAG_ALL;
if (!strcmp(mnt->mnt_type, MNTTYPE_XFS)) { /* XFS filesystem has special handling... */
if (!(kqf & (1 << QF_XFS))) {
errstr("Can't change state of XFS quota. It's not compiled in kernel.\n");
return 1;
}
if (kqf & (1 << QF_XFS) &&
((offmode && (kern_quota_on(mnt->mnt_fsname, USRQUOTA, 1 << QF_XFS)
|| kern_quota_on(mnt->mnt_fsname, GRPQUOTA, 1 << QF_XFS)))
|| (!offmode && kern_quota_on(mnt->mnt_fsname, type, 1 << QF_XFS))))
ret = xfs_newstate(mnt, type, extra, flags);
}
else {
extra = get_qf_name(mnt, type, (kqf & (1 << QF_VFSV0)) ? QF_VFSV0 : QF_VFSOLD);
statefunc = (kqf & (1 << QF_VFSV0)) ? v2_newstate : v1_newstate;
ret = statefunc(mnt, type, extra, flags);
free(extra);
}
return ret;
}
/* Print state of quota (on/off) */
static int print_state(struct mntent *mnt, int type)
{
int on = 0;
if (!strcmp(mnt->mnt_type, MNTTYPE_XFS)) {
if (kqf & (1 << QF_XFS))
on = kern_quota_on(mnt->mnt_fsname, type, 1 << QF_XFS) != -1;
}
else if (kqf & (1 << QF_VFSV0))
on = kern_quota_on(mnt->mnt_fsname, type, 1 << QF_VFSV0) != -1;
else if (kqf & (1 << QF_VFSOLD))
on = kern_quota_on(mnt->mnt_fsname, type, 1 << QF_VFSOLD) != -1;
printf("%s quota on %s (%s) is %s\n", type2name(type), mnt->mnt_dir, mnt->mnt_fsname,
on ? "on" : "off");
return on;
}
int main(int argc, char **argv)
{
struct mntent *mnt;
char *xarg = NULL;
int c, offmode = 0, errs = 0;
gettexton();
progname = basename(argv[0]);
if (strcmp(progname, "quotaoff") == 0)
offmode++;
else if (strcmp(progname, "quotaon") != 0)
die(1, _("Name must be quotaon or quotaoff not %s\n"), progname);
while ((c = getopt(argc, argv, "afvugpx:V")) != -1) {
switch (c) {
case 'a':
aflag++;
break;
case 'f':
offmode++;
break;
case 'g':
gflag++;
break;
case 'u':
uflag++;
break;
case 'v':
vflag++;
break;
case 'x':
xarg = optarg;
break;
case 'p':
pflag++;
break;
case 'V':
version();
exit(0);
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc <= 0 && !aflag)
usage();
if (!gflag && !uflag) {
gflag++;
uflag++;
}
kqf = kern_quota_format();
if (kqf == QF_TOONEW) {
errstr(_("WARNING - Kernel quota newer than supported! Quota need not work properly.\n"));
kqf = 1 << QF_VFSV0;
}
if (init_mounts_scan(aflag ? 0 : argc, argv) < 0)
return 1;
while ((mnt = get_next_mount(0))) {
if (!strcmp(mnt->mnt_type, MNTTYPE_NFS)) {
if (!aflag)
fprintf(stderr, "%s: Quota can't be turned on on NFS filesystem\n", mnt->mnt_fsname);
continue;
}
if (!pflag) {
if (gflag)
errs += newstate(mnt, offmode, GRPQUOTA, xarg);
if (uflag)
errs += newstate(mnt, offmode, USRQUOTA, xarg);
}
else {
if (gflag)
errs += print_state(mnt, GRPQUOTA);
if (uflag)
errs += print_state(mnt, USRQUOTA);
}
}
end_mounts_scan();
return errs;
}
/*
* Enable/disable VFS quota on given filesystem
*/
static int quotaonoff(char *quotadev, char *quotadir, char *quotafile, int type, int flags)
{
int qcmd;
if (flags & STATEFLAG_OFF) {
qcmd = QCMD(Q_QUOTAOFF, type);
if (quotactl(qcmd, quotadev, 0, NULL) < 0) {
errstr(_("quotactl on %s [%s]: %s\n"), quotadev, quotadir, strerror(errno));
return 1;
}
if (flags & STATEFLAG_VERBOSE)
printf(_("%s [%s]: %s quotas turned off\n"), quotadev, quotadir, type2name(type));
return 0;
}
qcmd = QCMD(Q_QUOTAON, type);
if (quotactl(qcmd, quotadev, 0, (void *)quotafile) < 0) {
if (errno == ENOENT)
errstr(_("can't find %s on %s [%s]\n"), quotafile, quotadev, quotadir);
else
errstr(_("using %s on %s [%s]: %s\n"), quotafile, quotadev, quotadir, strerror(errno));
if (errno == EINVAL)
errstr(_("Maybe create new quota files with quotacheck(8)?\n"));
return 1;
}
if (flags & STATEFLAG_VERBOSE)
printf(_("%s [%s]: %s quotas turned on\n"), quotadev, quotadir, type2name(type));
return 0;
}
/*
* Enable/disable rsquash on given filesystem
*/
static int quotarsquashonoff(const char *quotadev, int type, int flags)
{
#if defined(MNTOPT_RSQUASH)
int mode = (flags & STATEFLAG_OFF) ? 0 : 1;
int qcmd = QCMD(Q_V1_RSQUASH, type);
if (quotactl(qcmd, quotadev, 0, (void *)&mode) < 0) {
errstr(_("set root_squash on %s: %s\n"), quotadev, strerror(errno));
return 1;
}
if ((flags & STATEFLAG_VERBOSE) && (flags & STATEFLAG_OFF))
printf(_("%s: %s root_squash turned off\n"), quotadev, type2name(type));
else if ((flags & STATEFLAG_VERBOSE) && (flags & STATEFLAG_ON))
printf(_("%s: %s root_squash turned on\n"), quotadev, type2name(type));
#endif
return 0;
}
/*
* Enable/disable quota/rootsquash on given filesystem (version 1)
*/
int v1_newstate(struct mntent *mnt, int type, char *file, int flags)
{
int errs = 0;
const char *dev = get_device_name(mnt->mnt_fsname);
if (!dev)
return 1;
if ((flags & STATEFLAG_OFF) && hasmntopt(mnt, MNTOPT_RSQUASH))
errs += quotarsquashonoff(dev, type, flags);
if (hasquota(mnt, type))
errs += quotaonoff((char *)dev, mnt->mnt_dir, file, type, flags);
if ((flags & STATEFLAG_ON) && hasmntopt(mnt, MNTOPT_RSQUASH))
errs += quotarsquashonoff(dev, type, flags);
free((char *)dev);
return errs;
}
/*
* Enable/disable quota on given filesystem (version 2 quota)
*/
int v2_newstate(struct mntent *mnt, int type, char *file, int flags)
{
const char *dev = get_device_name(mnt->mnt_fsname);
int errs = 0;
if (!dev)
return 1;
if (hasquota(mnt, type))
errs = quotaonoff((char *)dev, mnt->mnt_dir, file, type, flags);
free((char *)dev);
return errs;
}
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