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From b54e00beddd4343e746c7ead585ef607dbf48cff Mon Sep 17 00:00:00 2001
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From: Uri Simchoni <urisimchoni@gmail.com>
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Date: Thu, 19 Nov 2015 21:48:15 +0200
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Subject: [PATCH 4/5] manpage: clarify use of backupuid and backupgid in
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mount.cifs.8
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Assert that backup intent shall only be attempted if the user matches
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the backupuid or backupgid parameter.
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Signed-off-by: Uri Simchoni <uri@samba.org>
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Signed-off-by: Jeff Layton <jlayton@samba.org>
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(cherry picked from commit dd13ac8a25d409a0d3d068b5b2b96f921f2613f2)
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Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
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---
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mount.cifs.8 | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/mount.cifs.8 b/mount.cifs.8
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index 2643145..af6b097 100644
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--- a/mount.cifs.8
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+++ b/mount.cifs.8
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@@ -310,14 +310,14 @@ for more information\&.
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.PP
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backupuid=\fIarg\fR
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.RS 4
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-Restrict access to files with the backup intent to a user. Either a name or an id must be provided as an argument, there are no default values.
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+File access by this user shall be done with the backup intent flag set. Either a name or an id must be provided as an argument, there are no default values.
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.sp
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See section \fIACCESSING FILES WITH BACKUP INTENT\fR for more details
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.RE
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.PP
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backupgid=\fIarg\fR
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.RS 4
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-Restrict access to files with the backup intent to a group. Either a name or an id must be provided as an argument, there are no default values.
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+File access by users who are members of this group shall be done with the backup intent flag set. Either a name or an id must be provided as an argument, there are no default values.
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.sp
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See section \fIACCESSING FILES WITH BACKUP INTENT\fR for more details
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.RE
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@@ -767,7 +767,7 @@ But the user testuser, if it becomes part of the group Backup Operators, can ope
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Any user on the client side who can authenticate as such a user on the server,
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can access the files with the backup intent. But it is desirable and preferable for security reasons amongst many, to restrict this special right.
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-The mount option backupuid is used to restrict this special right to a user which is specified by either a name or an id. The mount option backupgid is used to restrict this special right to the users in a group which is specified by either a name or an id. These two mount options can be used together.
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+The mount option backupuid is used to restrict this special right to a user which is specified by either a name or an id. The mount option backupgid is used to restrict this special right to the users in a group which is specified by either a name or an id. Only users maching either backupuid or backupgid shall attempt to access files with backup intent. These two mount options can be used together.
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.SH "FILE AND DIRECTORY OWNERSHIP AND PERMISSIONS"
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.PP
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The core CIFS protocol does not provide unix ownership information or mode for files and directories\&. Because of this, files and directories will generally appear to be owned by whatever values the uid= or gid= options are set, and will have permissions set to the default file_mode and dir_mode for the mount\&. Attempting to change these values via chmod/chown will return success but have no effect\&.
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--
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2.5.5
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