From: Shuguang Sun <shuguang@gmail.com>
To: 29455@debbugs.gnu.org
Subject: bug#29455: backup-by-copying ACL Operation not permitted with Windows 7 and Samba
Date: Sun, 26 Nov 2017 22:59:33 +0800 [thread overview]
Message-ID: <CACspjXcM1ZPKw7-q_GgV-6xUOqx2QQLRJEsATYFRRE49tKrmsg@mail.gmail.com> (raw)
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Hi,
Local: Windows 7
GNU Emacs 27.0.50 (build 1, x86_64-w64-mingw32) of 2017-11-24
(backup-by-copying t)
File is on a server which is mapped as network driver in Windows 7. It
seems a samba according to the SID below.
The SDDL from file-acl is
"O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)"
After I edited the file and write it, the backup meets error:
Debugger entered--Lisp error: (file-error "Setting ACL" "Operation not
permitted"
"c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~")
set-file-acl("c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~"
"O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)")
set-file-extended-attributes("c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~"
((acl .
"O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)")
(selinux-context nil nil nil nil)))
backup-buffer-copy("i:/power/permutation_test_fixed_IA_time.r"
"c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~"
438 ((acl .
"O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)")
(selinux-context nil nil nil nil)))
backup-buffer()
basic-save-buffer-2()
basic-save-buffer-1()
basic-save-buffer(t)
save-buffer(1)
funcall-interactively(save-buffer 1)
call-interactively(save-buffer nil nil)
command-execute(save-buffer)
The ACL of a local file looks like:
"O:S-1-5-21-1213861250-xxx-207145G:DUD:AI(A;ID;FA;;;SY)(A;ID;FA;;;BA)(A;ID;FA;;;S-1-5-21-1213861250-xx-207145)(A;ID;FA;;;LA)"
I think it is a bug because:
1. I have the write access to the mapped network driver
2. If I copy a local file to the mapped network driver, the ACL would be
set up well.
So I don't think there should be a write permission in this backup case.
Best Regards
Shuguang Sun
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next reply other threads:[~2017-11-26 14:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-26 14:59 Shuguang Sun [this message]
2017-11-26 17:01 ` bug#29455: backup-by-copying ACL Operation not permitted with Windows 7 and Samba Eli Zaretskii
2017-11-27 6:29 ` Shuguang Sun
2017-11-27 15:52 ` Eli Zaretskii
2017-11-28 9:11 ` Shuguang Sun
2017-11-28 10:43 ` Shuguang Sun
2017-11-28 15:23 ` Shuguang Sun
2017-11-28 17:28 ` Eli Zaretskii
2019-09-29 0:11 ` Stefan Kangas
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