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#
# Copyright (c) 2011-2014 Red Hat, Inc. <http://www.redhat.com>
# This file is part of GlusterFS.
# This file is licensed to you under your choice of the GNU Lesser
# General Public License, version 3 or any later version (LGPLv3 or
# later), or the GNU General Public License, version 2 (GPLv2), in all
# cases as published by the Free Software Foundation.
#
from __future__ import print_function
import os
import sys
import stat
import time
import struct
import random
import libcxattr
from errno import EEXIST
Xattr = libcxattr.Xattr()
def umask():
return os.umask(0)
def _fmt_mknod(l):
return "!II%dsI%dsIII" % (37, l+1)
def _fmt_mkdir(l):
return "!II%dsI%dsII" % (37, l+1)
def _fmt_symlink(l1, l2):
return "!II%dsI%ds%ds" % (37, l1+1, l2+1)
if sys.version_info > (3,):
def entry_pack_reg(gf, bn, mo, uid, gid):
bn_encoded = bn.encode()
blen = len(bn_encoded)
return struct.pack(_fmt_mknod(blen),
uid, gid, gf.encode(), mo, bn_encoded,
stat.S_IMODE(mo), 0, umask())
# mkdir
def entry_pack_dir(gf, bn, mo, uid, gid):
bn_encoded = bn.encode()
blen = len(bn_encoded)
return struct.pack(_fmt_mkdir(blen),
uid, gid, gf.encode(), mo, bn_encoded,
stat.S_IMODE(mo), umask())
# symlink
def entry_pack_symlink(gf, bn, lnk, st):
bn_encoded = bn.encode()
blen = len(bn_encoded)
lnk_encoded = lnk.encode()
llen = len(lnk_encoded)
return struct.pack(_fmt_symlink(blen, llen),
st['uid'], st['gid'],
gf.encode(), st['mode'], bn_encoded,
lnk_encoded)
else:
def entry_pack_reg(gf, bn, mo, uid, gid):
blen = len(bn)
return struct.pack(_fmt_mknod(blen),
uid, gid, gf, mo, bn,
stat.S_IMODE(mo), 0, umask())
def entry_pack_dir(gf, bn, mo, uid, gid):
blen = len(bn)
return struct.pack(_fmt_mkdir(blen),
uid, gid, gf, mo, bn,
stat.S_IMODE(mo), umask())
def entry_pack_symlink(gf, bn, lnk, mo, uid, gid):
blen = len(bn)
llen = len(lnk)
return struct.pack(_fmt_symlink(blen, llen),
uid, gid, gf, mo, bn, lnk)
if __name__ == '__main__':
if len(sys.argv) < 9:
print(("USAGE: %s <mount> <pargfid|ROOT> <filename> <GFID> <file type>"
" <uid> <gid> <file permission(octal str)>" % (sys.argv[0])))
sys.exit(-1) # nothing to do
mtpt = sys.argv[1]
pargfid = sys.argv[2]
fname = sys.argv[3]
randomgfid = sys.argv[4]
ftype = sys.argv[5]
uid = int(sys.argv[6])
gid = int(sys.argv[7])
perm = int(sys.argv[8], 8)
os.chdir(mtpt)
if pargfid == 'ROOT':
pargfid = '.gfid/00000000-0000-0000-0000-000000000001'
else:
pargfid = '.gfid/' + pargfid
blob = None
# entry op: use non-zero uid/gid (to catch gfid-access xlator bugs)
if ftype == 'file':
mode = stat.S_IFREG | perm
blob = entry_pack_reg(randomgfid, fname, mode, uid, gid)
elif ftype =='dir':
mode = stat.S_IFDIR | perm
blob = entry_pack_dir(randomgfid, fname, mode, uid, gid)
else: # not yet...
sys.exit(-1)
if blob == None:
sys.exit(-1)
try:
Xattr.lsetxattr(pargfid, 'glusterfs.gfid.newfile', blob)
except OSError:
ex = sys.exc_info()[1]
if not ex.errno in [EEXIST]:
raise
sys.exit(-1)
print("File creation OK")
sys.exit(0)
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