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/*
* Copyright (c) 2003-2005 Silicon Graphics, Inc.
* 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.
*
* This program is distributed in the hope that it would 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 the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <xfs/xfs.h>
#include <xfs/command.h>
#include <xfs/input.h>
#include "init.h"
#include "io.h"
static cmdinfo_t chattr_cmd;
static cmdinfo_t lsattr_cmd;
static unsigned int orflags;
static unsigned int andflags;
unsigned int recurse_all;
unsigned int recurse_dir;
static struct xflags {
uint flag;
char *shortname;
char *longname;
} xflags[] = {
{ XFS_XFLAG_REALTIME, "r", "realtime" },
{ XFS_XFLAG_PREALLOC, "p", "prealloc" },
{ XFS_XFLAG_IMMUTABLE, "i", "immutable" },
{ XFS_XFLAG_APPEND, "a", "append-only" },
{ XFS_XFLAG_SYNC, "s", "sync" },
{ XFS_XFLAG_NOATIME, "A", "no-atime" },
{ XFS_XFLAG_NODUMP, "d", "no-dump" },
{ XFS_XFLAG_RTINHERIT, "t", "rt-inherit" },
{ XFS_XFLAG_PROJINHERIT, "P", "proj-inherit" },
{ XFS_XFLAG_NOSYMLINKS, "n", "nosymlinks" },
{ XFS_XFLAG_EXTSIZE, "e", "extsize" },
{ XFS_XFLAG_EXTSZINHERIT, "E", "extsz-inherit" },
{ XFS_XFLAG_NODEFRAG, "f", "no-defrag" },
{ XFS_XFLAG_FILESTREAM, "S", "filestream" },
{ 0, NULL, NULL }
};
#define CHATTR_XFLAG_LIST "r"/*p*/"iasAdtPneEfS"
static void
lsattr_help(void)
{
printf(_(
"\n"
" displays the set of extended inode flags associated with the current file\n"
"\n"
" Each individual flag is displayed as a single character, in this order:\n"
" r -- file data is stored in the realtime section\n"
" p -- file has preallocated extents (cannot be changed using chattr)\n"
" i -- immutable, file cannot be modified\n"
" a -- append-only, file can only be appended to\n"
" s -- all updates are synchronous\n"
" A -- the access time is not updated for this inode\n"
" d -- do not include this file in a dump of the filesystem\n"
" t -- child created in this directory has realtime bit set by default\n"
" P -- child created in this directory has parents project ID by default\n"
" n -- symbolic links cannot be created in this directory\n"
" e -- for non-realtime files, observe the inode extent size value\n"
" E -- children created in this directory inherit the extent size value\n"
" f -- do not include this file when defragmenting the filesystem\n"
" S -- enable filestreams allocator for this directory\n"
"\n"
" Options:\n"
" -R -- recursively descend (useful when current file is a directory)\n"
" -D -- recursively descend, but only list attributes on directories\n"
" -a -- show all flags which can be set alongside those which are set\n"
" -v -- verbose mode; show long names of flags, not single characters\n"
"\n"));
}
static void
chattr_help(void)
{
printf(_(
"\n"
" modifies the set of extended inode flags associated with the current file\n"
"\n"
" Examples:\n"
" 'chattr +a' - sets the append-only flag\n"
" 'chattr -a' - clears the append-only flag\n"
"\n"
" -R -- recursively descend (useful when current file is a directory)\n"
" -D -- recursively descend, only modifying attributes on directories\n"
" +/-r -- set/clear the realtime flag\n"
" +/-i -- set/clear the immutable flag\n"
" +/-a -- set/clear the append-only flag\n"
" +/-s -- set/clear the sync flag\n"
" +/-A -- set/clear the no-atime flag\n"
" +/-d -- set/clear the no-dump flag\n"
" +/-t -- set/clear the realtime inheritance flag\n"
" +/-P -- set/clear the project ID inheritance flag\n"
" +/-n -- set/clear the no-symbolic-links flag\n"
" +/-e -- set/clear the extent-size flag\n"
" +/-E -- set/clear the extent-size inheritance flag\n"
" +/-f -- set/clear the no-defrag flag\n"
" +/-S -- set/clear the filestreams allocator flag\n"
" Note1: user must have certain capabilities to modify immutable/append-only.\n"
" Note2: immutable/append-only files cannot be deleted; removing these files\n"
" requires the immutable/append-only flag to be cleared first.\n"
" Note3: the realtime flag can only be set if the filesystem has a realtime\n"
" section, and the (regular) file must be empty when the flag is set.\n"
"\n"));
}
void
printxattr(
uint flags,
int verbose,
int dofname,
const char *fname,
int dobraces,
int doeol)
{
struct xflags *p;
int first = 1;
if (dobraces)
fputs("[", stdout);
for (p = xflags; p->flag; p++) {
if (flags & p->flag) {
if (verbose) {
if (first)
first = 0;
else
fputs(", ", stdout);
fputs(p->longname, stdout);
} else {
fputs(p->shortname, stdout);
}
} else if (!verbose) {
fputs("-", stdout);
}
}
if (dobraces)
fputs("]", stdout);
if (dofname)
printf(" %s ", fname);
if (doeol)
fputs("\n", stdout);
}
static int
lsattr_callback(
const char *path,
const struct stat *stat,
int status,
struct FTW *data)
{
struct fsxattr fsx;
int fd;
if (recurse_dir && !S_ISDIR(stat->st_mode))
return 0;
if ((fd = open(path, O_RDONLY)) == -1)
fprintf(stderr, _("%s: cannot open %s: %s\n"),
progname, path, strerror(errno));
else if ((xfsctl(path, fd, XFS_IOC_FSGETXATTR, &fsx)) < 0)
fprintf(stderr, _("%s: cannot get flags on %s: %s\n"),
progname, path, strerror(errno));
else
printxattr(fsx.fsx_xflags, 0, 1, path, 0, 1);
if (fd != -1)
close(fd);
return 0;
}
static int
lsattr_f(
int argc,
char **argv)
{
struct fsxattr fsx;
char *name = file->name;
int c, aflag = 0, vflag = 0;
recurse_all = recurse_dir = 0;
while ((c = getopt(argc, argv, "DRav")) != EOF) {
switch (c) {
case 'D':
recurse_all = 0;
recurse_dir = 1;
break;
case 'R':
recurse_all = 1;
recurse_dir = 0;
break;
case 'a':
aflag = 1;
vflag = 0;
break;
case 'v':
aflag = 0;
vflag = 1;
break;
default:
return command_usage(&lsattr_cmd);
}
}
if (recurse_all || recurse_dir) {
nftw(name, lsattr_callback,
100, FTW_PHYS | FTW_MOUNT | FTW_DEPTH);
} else if ((xfsctl(name, file->fd, XFS_IOC_FSGETXATTR, &fsx)) < 0) {
fprintf(stderr, _("%s: cannot get flags on %s: %s\n"),
progname, name, strerror(errno));
} else {
printxattr(fsx.fsx_xflags, vflag, !aflag, name, vflag, !aflag);
if (aflag) {
fputs("/", stdout);
printxattr(-1, 0, 1, name, 0, 1);
}
}
return 0;
}
static int
chattr_callback(
const char *path,
const struct stat *stat,
int status,
struct FTW *data)
{
struct fsxattr attr;
int fd;
if (recurse_dir && !S_ISDIR(stat->st_mode))
return 0;
if ((fd = open(path, O_RDONLY)) == -1) {
fprintf(stderr, _("%s: cannot open %s: %s\n"),
progname, path, strerror(errno));
} else if (xfsctl(path, fd, XFS_IOC_FSGETXATTR, &attr) < 0) {
fprintf(stderr, _("%s: cannot get flags on %s: %s\n"),
progname, path, strerror(errno));
} else {
attr.fsx_xflags |= orflags;
attr.fsx_xflags &= ~andflags;
if (xfsctl(path, fd, XFS_IOC_FSSETXATTR, &attr) < 0)
fprintf(stderr, _("%s: cannot set flags on %s: %s\n"),
progname, path, strerror(errno));
}
if (fd != -1)
close(fd);
return 0;
}
static int
chattr_f(
int argc,
char **argv)
{
struct fsxattr attr;
struct xflags *p;
unsigned int i = 0;
char *c, *name = file->name;
orflags = andflags = 0;
recurse_all = recurse_dir = 0;
while (++i < argc) {
if (argv[i][0] == '-' && argv[i][1] == 'R') {
recurse_all = 1;
} else if (argv[i][0] == '-' && argv[i][1] == 'D') {
recurse_dir = 1;
} else if (argv[i][0] == '+') {
for (c = &argv[i][1]; *c; c++) {
for (p = xflags; p->flag; p++) {
if (strncmp(p->shortname, c, 1) == 0) {
orflags |= p->flag;
break;
}
}
if (!p->flag) {
fprintf(stderr, _("%s: unknown flag\n"),
progname);
return 0;
}
}
} else if (argv[i][0] == '-') {
for (c = &argv[i][1]; *c; c++) {
for (p = xflags; p->flag; p++) {
if (strncmp(p->shortname, c, 1) == 0) {
andflags |= p->flag;
break;
}
}
if (!p->flag) {
fprintf(stderr, _("%s: unknown flag\n"),
progname);
return 0;
}
}
} else {
fprintf(stderr, _("%s: bad chattr command, not +/-X\n"),
progname);
return 0;
}
}
if (recurse_all || recurse_dir) {
nftw(name, chattr_callback,
100, FTW_PHYS | FTW_MOUNT | FTW_DEPTH);
} else if (xfsctl(name, file->fd, XFS_IOC_FSGETXATTR, &attr) < 0) {
fprintf(stderr, _("%s: cannot get flags on %s: %s\n"),
progname, name, strerror(errno));
} else {
attr.fsx_xflags |= orflags;
attr.fsx_xflags &= ~andflags;
if (xfsctl(name, file->fd, XFS_IOC_FSSETXATTR, &attr) < 0)
fprintf(stderr, _("%s: cannot set flags on %s: %s\n"),
progname, name, strerror(errno));
}
return 0;
}
void
attr_init(void)
{
chattr_cmd.name = _("chattr");
chattr_cmd.cfunc = chattr_f;
chattr_cmd.args = _("[-R|-D] [+/-"CHATTR_XFLAG_LIST"]");
chattr_cmd.argmin = 1;
chattr_cmd.argmax = -1;
chattr_cmd.flags = CMD_NOMAP_OK;
chattr_cmd.oneline =
_("change extended inode flags on the currently open file");
chattr_cmd.help = chattr_help;
lsattr_cmd.name = _("lsattr");
lsattr_cmd.cfunc = lsattr_f;
lsattr_cmd.args = _("[-R|-D|-a|-v]");
lsattr_cmd.argmin = 0;
lsattr_cmd.argmax = 1;
lsattr_cmd.flags = CMD_NOMAP_OK;
lsattr_cmd.oneline =
_("list extended inode flags set on the currently open file");
lsattr_cmd.help = lsattr_help;
add_command(&chattr_cmd);
add_command(&lsattr_cmd);
}
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