From: Jun T <takimoto-j@kba.biglobe.ne.jp>
To: cygwin@cygwin.com
Subject: directory without search permission is searchable?
Date: Wed, 26 Feb 2020 05:30:00 -0000 [thread overview]
Message-ID: <06DDE076-BDA6-4877-BDD3-7F670CB38DB0@kba.biglobe.ne.jp> (raw)
It seems 'ls -l dir/file' or 'stat dir/file' succeeds even if
I don't have read/search permission for the 'dir'.
Create a directory and a file in it:
$ mkdir tmpdir
$ ls -ld tmpdir
drwxr-xr-x+ 1 takimoto none 0 Feb 26 12:46 tmpdir
$ touch tmpdir/afile
$ ls -l tmpdir/afile
-rw-r--r-- 1 takimoto 0 none Feb 26 12:46 tmpdir/afile
Remove all permissions from tmpdir:
$ chmod 0000 tmpdir
$ ls -ld tmpdir
d---------+ 1 takimoto none 0 Feb 26 12:46 tmpdir
$ getfacl tmpdir
# file: tmpdir
# owner: takimoto
# group: none
user::---
group::---
other::---
default:user::rwx
default:group::r-x
default:other::r-x
This fails as expected:
$ ls -l tmpdir
ls: cannot open directory 'tmpdir': Permission denied
But the followings succeed (should fail, I believe):
$ ls -l tmpdir/afile
-rw-r--r-- 1 takimoto none 0 Feb 26 12:46 tmpdir/afile
$ stat tmpdir/afile
File: tmpdir/afile
Size: 0 Blocks: 0 IO Block: 65536 regular empty file
Device: d05d00abh/3495755947d Inode: 14636698789089092 Links: 1
Access: (0644/-rw-r--r--) Uid: (197609/takimoto) Gid: (197121/ none)
Access: 2020-02-26 12:46:12.478966400 +0900
Modify: 2020-02-26 12:46:12.478966400 +0900
Change: 2020-02-26 12:46:12.464849300 +0900
Birth: 2020-02-26 12:46:12.464849300 +0900
Does this happen only for me? Should I set some ACL properly?
I removed default ACL from tmpdir but the results are the same.
I confirmed (by a simple C code) that the stat(3p) system call
(or library function) succeeds for 'tmpdir/afile'.
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next reply other threads:[~2020-02-26 5:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-26 5:30 Jun T [this message]
2020-02-26 7:42 ` Thomas Wolff
2020-02-26 10:54 ` Corinna Vinschen
2020-02-26 16:10 ` Jun-ichi Takimoto
2020-02-26 16:16 ` Corinna Vinschen
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