'\" t
.\" Title: sharesec
.\" Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets vsnapshot
.\" Date: 04/07/2024
.\" Manual: User Commands
.\" Source: Samba 4.20.0
.\" Language: English
.\"
.TH "SHARESEC" "1" "04/07/2024" "Samba 4\&.20\&.0" "User Commands"
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.SH "NAME"
sharesec \- Set or get share ACLs
.SH "SYNOPSIS"
.HP \w'\ 'u
sharesec {sharename} [\-r,\ \-\-remove=ACL] [\-m,\ \-\-modify=ACL] [\-a,\ \-\-add=ACL] [\-R,\ \-\-replace=ACLs] [\-D,\ \-\-delete] [\-v,\ \-\-view] [\-\-view\-all] [\-M,\ \-\-machine\-sid] [\-F,\ \-\-force] [\-d,\ \-\-debuglevel=DEBUGLEVEL] [\-s,\ \-\-configfile=CONFIGFILE] [\-l,\ \-\-log\-basename=LOGFILEBASE] [\-S,\ \-\-setsddl=STRING] [\-\-viewsddl] [\-?|\-\-help] [\-\-usage] [\-d|\-\-debuglevel=DEBUGLEVEL] [\-\-debug\-stdout] [\-\-configfile=CONFIGFILE] [\-\-option=name=value] [\-l|\-\-log\-basename=LOGFILEBASE] [\-\-leak\-report] [\-\-leak\-report\-full]
.SH "DESCRIPTION"
.PP
This tool is part of the
\fBsamba\fR(7)
suite\&.
.PP
The
sharesec
program manipulates share permissions on SMB file shares\&.
.SH "OPTIONS"
.PP
The following options are available to the
sharesec
program\&. The format of ACLs is described in the section ACL FORMAT
.PP
\-a|\-\-add=ACL
.RS 4
Add the ACEs specified to the ACL list\&.
.RE
.PP
\-D|\-\-delete
.RS 4
Delete the entire security descriptor\&.
.RE
.PP
\-F|\-\-force
.RS 4
Force storing the ACL\&.
.RE
.PP
\-m|\-\-modify=ACL
.RS 4
Modify existing ACEs\&.
.RE
.PP
\-M|\-\-machine\-sid
.RS 4
Initialize the machine SID\&.
.RE
.PP
\-r|\-\-remove=ACL
.RS 4
Remove ACEs\&.
.RE
.PP
\-R|\-\-replace=ACLS
.RS 4
Overwrite an existing share permission ACL\&.
.RE
.PP
\-v|\-\-view
.RS 4
List a share acl
.RE
.PP
\-\-view\-all
.RS 4
List all share acls
.RE
.PP
\-S|\-\-setsddl=STRING
.RS 4
Set security descriptor by providing ACL in SDDL format\&.
.RE
.PP
\-\-viewsddl
.RS 4
List a share acl in SDDL format\&.
.RE
.PP
\-?|\-\-help
.RS 4
Print a summary of command line options\&.
.RE
.PP
\-\-usage
.RS 4
Display brief usage message\&.
.RE
.PP
\-d|\-\-debuglevel=DEBUGLEVEL
.RS 4
\fIlevel\fR
is an integer from 0 to 10\&. The default value if this parameter is not specified is 1 for client applications\&.
.sp
The higher this value, the more detail will be logged to the log files about the activities of the server\&. At level 0, only critical errors and serious warnings will be logged\&. Level 1 is a reasonable level for day\-to\-day running \- it generates a small amount of information about operations carried out\&.
.sp
Levels above 1 will generate considerable amounts of log data, and should only be used when investigating a problem\&. Levels above 3 are designed for use only by developers and generate HUGE amounts of log data, most of which is extremely cryptic\&.
.sp
Note that specifying this parameter here will override the
\m[blue]\fBlog level\fR\m[]
parameter in the
/etc/samba/smb\&.conf
file\&.
.RE
.PP
\-\-debug\-stdout
.RS 4
This will redirect debug output to STDOUT\&. By default all clients are logging to STDERR\&.
.RE
.PP
\-\-configfile=
.RS 4
The file specified contains the configuration details required by the client\&. The information in this file can be general for client and server or only provide client specific like options such as
\m[blue]\fBclient smb encrypt\fR\m[]\&. See
/etc/samba/smb\&.conf
for more information\&. The default configuration file name is determined at compile time\&.
.RE
.PP
\-\-option==
.RS 4
Set the
\fBsmb.conf\fR(5)
option "" to value "" from the command line\&. This overrides compiled\-in defaults and options read from the configuration file\&. If a name or a value includes a space, wrap whole \-\-option=name=value into quotes\&.
.RE
.PP
\-l|\-\-log\-basename=logdirectory
.RS 4
Base directory name for log/debug files\&. The extension
\fB"\&.progname"\fR
will be appended (e\&.g\&. log\&.smbclient, log\&.smbd, etc\&.\&.\&.)\&. The log file is never removed by the client\&.
.RE
.PP
\-\-leak\-report
.RS 4
Enable talloc leak reporting on exit\&.
.RE
.PP
\-\-leak\-report\-full
.RS 4
Enable full talloc leak reporting on exit\&.
.RE
.PP
\-V|\-\-version
.RS 4
Prints the program version number\&.
.RE
.SH "ACL FORMAT"
.PP
The format of an ACL is one or more ACL entries separated by either commas or newlines\&. An ACL entry is one of the following:
.PP
.if n \{\
.RS 4
.\}
.nf
REVISION:
OWNER:
GROUP:
ACL:://
.fi
.if n \{\
.RE
.\}
.PP
The revision of the ACL specifies the internal Windows NT ACL revision for the security descriptor\&. If not specified it defaults to 1\&. Using values other than 1 may cause strange behaviour\&.
.PP
The owner and group specify the owner and group SIDs for the object\&. Share ACLs do not specify an owner or a group, so these fields are empty\&.
.PP
ACLs specify permissions granted to the SID\&. This SID can be specified in S\-1\-x\-y\-z format or as a name in which case it is resolved against the server on which the file or directory resides\&. The type, flags and mask values determine the type of access granted to the SID\&.
.PP
The type can be either ALLOWED or DENIED to allow/deny access to the SID\&. The flags values are generally zero for share ACLs\&.
.PP
The mask is a value which expresses the access right granted to the SID\&. It can be given as a decimal or hexadecimal value, or by using one of the following text strings which map to the NT file permissions of the same name\&.
.RS
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIR\fR
\- Allow read access
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIW\fR
\- Allow write access
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIX\fR
\- Execute permission on the object
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fID\fR
\- Delete the object
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIP\fR
\- Change permissions
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIO\fR
\- Take ownership
.RE
.sp
.RE
.PP
The following combined permissions can be specified:
.RS
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIREAD\fR
\- Equivalent to \*(AqRX\*(Aq permissions
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fICHANGE\fR
\- Equivalent to \*(AqRXWD\*(Aq permissions
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIFULL\fR
\- Equivalent to \*(AqRWXDPO\*(Aq permissions
.RE
.SH "EXIT STATUS"
.PP
The
sharesec
program sets the exit status depending on the success or otherwise of the operations performed\&. The exit status may be one of the following values\&.
.PP
If the operation succeeded, sharesec returns and exit status of 0\&. If
sharesec
couldn\*(Aqt connect to the specified server, or there was an error getting or setting the ACLs, an exit status of 1 is returned\&. If there was an error parsing any command line arguments, an exit status of 2 is returned\&.
.SH "EXAMPLES"
.PP
Add full access for SID
\fIS\-1\-5\-21\-1866488690\-1365729215\-3963860297\-17724\fR
on
\fIshare\fR:
.sp
.if n \{\
.RS 4
.\}
.nf
host:~ # sharesec share \-a S\-1\-5\-21\-1866488690\-1365729215\-3963860297\-17724:ALLOWED/0/FULL
.fi
.if n \{\
.RE
.\}
.PP
List all ACEs for
\fIshare\fR:
.sp
.if n \{\
.RS 4
.\}
.nf
host:~ # sharesec share \-v
REVISION:1
CONTROL:SR|DP
OWNER:
GROUP:
ACL:S\-1\-1\-0:ALLOWED/0x0/FULL
ACL:S\-1\-5\-21\-1866488690\-1365729215\-3963860297\-17724:ALLOWED/0x0/FULL
.fi
.if n \{\
.RE
.\}
.SH "VERSION"
.PP
This man page is part of version 4\&.20\&.0 of the Samba suite\&.
.SH "AUTHOR"
.PP
The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.